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The plant was built in the 1920s when it was in quite a remote location. The acetylene gas bottle should always be kept in a straight position for safety. Construction of Acetylene Cylinder. Copper metal forms explosive compounds with acetylene. If a cylinder has been transported, it must be left to settle in an upright position on arrival. Copyright © 2021 Elsevier B.V. or its licensors or contributors. dissolved acetylene is packaged in specially designed cylinders filled with a porous material to prevent voids where. The experiment was carried out for three acetylene cylinders. Acetylene is a moderately common chemical in the universe, often associated with the atmospheres of gas giants. Specific and immediate action is required with any acetylene cylinder. A protective metal cap screws onto the valve to prevent damage during shipment or storage. Explosion hazard of acetylene cylinders An acetylene cylinder has a different design from most other gas cylinders. �p��dt Many acetylene cylinders are collected and transported in unventilated vehicles. Figure 3 Explosion of an acetylene cylinder . If a cylinder explodes it can cause: Travelling fireballs; Projectile hazards; Structural damage to near by buildings On Monday morning, when the steam fitter opened the truck, a large explosion occurred. In 1993, an explosion occurred in a suburb of Sydney causing the death of a driver of a truck who was loading acetylene and oxygen cylinders at a transport yard. On lighting the torch, a ‘pop’ sound was heard, and a small fire was observed from a rupture of the acetylene hose just ahead of the flash-back arrestor. We present a case of a 34-year-old male welder who died following injuries sustained from explosion of an acetylene gas-welding cylinder. The acetylene gas cylinder explosion. Acetylene is so volatile it has to be dissolved in a solvent and stored with a porous mass to keep it stable. The acetylene valve on the quad was slowly opened; the welder then opened up the oxygen and acetylene valves on the cutting head and ignited the tip. ACETYLENE. Acetylene and Its Uses 2. This risk is magnified over prolonged storage periods. Flammable Extremely hazardous Acetylene Cal ret No. Broken bones, missing fingers and limbs, as … Many acetylene cylinders are collected and transported in unventilated vehicles. The contents gauge shows a pressure higher than 2750 kPa. Health and Safety Executive, Harpur Hill, Buxton SK17 9JN. The acetylene gas in the cylinder is dissolved in acetone which is absorbed by the porous mass. The cylinder becomes unduly warm. Acetylene cylinders must never be transported or stored in a closed vehicle. Flame or high temperature impinging on a localized area of the cylinder of this product can cause the cylinder to explode without activating the cylinder’s relief devices. Finely divided /cobalt/ metal decomposes and polymerizes acetylene on contact, becoming incandescent. 1, Shane Wakefield. It consists of a steel shell containing a porous mass. In the event of a leak – no matter how minor – gas can build up in the vehicle and result in a fire or explosion. If user experiences any difficulty operating cylinder valve discontinue use ... Assess the risk of potentially explosive atmospheres and the need for explosion-proof equipment. Introduction The Acetylene Gas Cylinder Explosion. The largest part shot. Acetylene is an inflammable gas commonly used for welding in small-scale industries. Acetylene Storage. The acetone in the cylinder must not be granted to enter the blowpipe, in other respects, an explosion can occur. Specific and immediate action is required with any acetylene cylinder. Hazards of acetylene cylinders There are a number of incidents each year where a flashback into an acetylene cylinder triggers decomposition, leaving the cylinder in a dangerous, unstable condition. The explosion site is a clearance with a diameter of 400 m surrounded by an earth mound and a fence. This video is of a scientific nature its purpose is to show and encourage to obey safety when handling gas cylinders. Revision of IGC Doc 123/12 with editorial corrections. Natural acetylene is believed to form from catalytic decomposition of long-chain hydrocarbons at temperatures of 1,700 K (1,430 °C; 2,600 °F) and above. Many acetylene cylinders are collected and transported in unventilated vehicles. An explosion occurs in the regulator or hose. The oxygen and acetylene cylinders were located on the quayside with the hoses rigged to the vessel. We use cookies to help provide and enhance our service and tailor content and ads. By continuing you agree to the use of cookies. The failure caused severe fragmentation of the cylinder and resulted in a fatality and property damage. Acetylene is normally dissolved in a solvent, typically acetone, at pressures up to 19 barg (275 psig) at 20°C (68°F). There was a flashback to the acetylene cylinder, which started to vibrate. Acetylene is highly unstable. Acetylene is an inflammable gas commonly used for welding in small-scale industries. Accident Allert :Acetylene cylinder explosion A n operator was lighting an oxy/acetylene cutting torch. At approximately 14.50hrs on Thursday 7th January 2010, an acetylene cylinder exploded whilst an employee was working on the filling racks at a dissolved acetylene (DA) bottling plant. An explosion in Invercargill that left one man seriously injured was probably caused by a leaking acetylene gas cylinder that came into contact with an ignition source. Every year, fire and rescue services attend hundreds of fires and incidents involving acetylene cylinders. 4. pp. Free acetylene is never stored under high pressure. Its lower and upper explosive limits in air are 2.5% and 93%, respectively. Copyright © 2005 Elsevier Ltd. All rights reserved. There is any sign of smoke; There is an unusual smell with gas discharged. An explosion of the cylinder only three minutes after a flashback is extremely rare. The. The characteristics of the failure morphology, which is entirely ductile, are discussed. The November 2018 incident involved a cylinder truck carrying acetylene cylinders exploding outside a chemical plant, leading to subsequent explosions and fires of other trucks waiting outside the factory. 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Stuart Island Wa Ferry, Van Storage Systems, Microsoft Office Applications, Penn State Baseball Roster 1998, Overstock Gel Memory Foam Mattress, Kubernetes Bare Metal Load Balancer, Cheap Blazers For Men, Honeywell Uop Competitors, " /> ll`@�I����Z�.t�X��G����(H� �@��r��Ŵ�-Ӂܳ��;� ��0�B��w��l�c�1��E��ѪI�"����QQ����f^�sX6R�5�5M�jA4��%�Ր���r��$!Zm�q5?�.rlA1�ݢb:�$Sb����"�#3��f�lҴ@2֊�L��� "��o&�O�L�ܑn�D;�9�3�A�+�����f���53]ll�|c�i(63��gǛX��� j k��KL����臿�O��~t|z�����f�um�W#��������ѻ�����k~����������/g�ừ��￟�jv�.M_�g#�ɳ)�����X;fg+l3[e[�V��mgK��///////O�#��q�8B!�G��������?/w�s~���u�r=��īīīīīīī�k�k�k�k�k�k�k�k�k�k�������!=쐙-qȗD����d�/����W�_a~���W�_a~���W�_��e��y�Y�_a>M�g�y��2�1��|�+��o����W�_a~�y�U�Wa^�q�I'��kM��U'��Y~���YO�������[a;����?/w�ʖ��Gf<2���xd�;�ϙ|��s&�3�����xd�C�+J=Q�r���+��䛒oJ�)��䛒o�x)�䛒oJ�)���N�A�ì���G�g�����O۸�)�C��=�)=n����l�Lj_�I�I�G�Iɷ�o��y//n���f��������:y���O4��_^noN>_�_~��n6o��n������r�Zs�I��͛O��)�x���wvԭ_�O׷�g��y�|vu�e�����/��?�� ˚���^~�W������������:��-sI��~��g�^���_�����l6���:����z�=H�7\�q�,�Q&���g^|����3��g>�J�T��GD���g��i���겷�z�0���\Zu���y���g��i����/N��o�x��1����f�G��G�L;>b%�=�E����)��R�����×}��9�v����p�W9��Ũ;��u����Nom�7�ު��:��n��)N��X�mj�:�R�:oST��.�=�}. d�!��$ � This failure is outstanding in two respects: the violence of the failure which occurred and the fact that the explosion occurred where there were no apparent ignition sources present and several days, possibly weeks after filling. The plant was built in the 1920s when it was in quite a remote location. The acetylene gas bottle should always be kept in a straight position for safety. Construction of Acetylene Cylinder. Copper metal forms explosive compounds with acetylene. If a cylinder has been transported, it must be left to settle in an upright position on arrival. Copyright © 2021 Elsevier B.V. or its licensors or contributors. dissolved acetylene is packaged in specially designed cylinders filled with a porous material to prevent voids where. The experiment was carried out for three acetylene cylinders. Acetylene is a moderately common chemical in the universe, often associated with the atmospheres of gas giants. Specific and immediate action is required with any acetylene cylinder. A protective metal cap screws onto the valve to prevent damage during shipment or storage. Explosion hazard of acetylene cylinders An acetylene cylinder has a different design from most other gas cylinders. �p��dt Many acetylene cylinders are collected and transported in unventilated vehicles. Figure 3 Explosion of an acetylene cylinder . If a cylinder explodes it can cause: Travelling fireballs; Projectile hazards; Structural damage to near by buildings On Monday morning, when the steam fitter opened the truck, a large explosion occurred. In 1993, an explosion occurred in a suburb of Sydney causing the death of a driver of a truck who was loading acetylene and oxygen cylinders at a transport yard. On lighting the torch, a ‘pop’ sound was heard, and a small fire was observed from a rupture of the acetylene hose just ahead of the flash-back arrestor. We present a case of a 34-year-old male welder who died following injuries sustained from explosion of an acetylene gas-welding cylinder. The acetylene gas cylinder explosion. Acetylene is so volatile it has to be dissolved in a solvent and stored with a porous mass to keep it stable. The acetylene valve on the quad was slowly opened; the welder then opened up the oxygen and acetylene valves on the cutting head and ignited the tip. ACETYLENE. Acetylene and Its Uses 2. This risk is magnified over prolonged storage periods. Flammable Extremely hazardous Acetylene Cal ret No. Broken bones, missing fingers and limbs, as … Many acetylene cylinders are collected and transported in unventilated vehicles. The contents gauge shows a pressure higher than 2750 kPa. Health and Safety Executive, Harpur Hill, Buxton SK17 9JN. The acetylene gas in the cylinder is dissolved in acetone which is absorbed by the porous mass. The cylinder becomes unduly warm. Acetylene cylinders must never be transported or stored in a closed vehicle. Flame or high temperature impinging on a localized area of the cylinder of this product can cause the cylinder to explode without activating the cylinder’s relief devices. Finely divided /cobalt/ metal decomposes and polymerizes acetylene on contact, becoming incandescent. 1, Shane Wakefield. It consists of a steel shell containing a porous mass. In the event of a leak – no matter how minor – gas can build up in the vehicle and result in a fire or explosion. If user experiences any difficulty operating cylinder valve discontinue use ... Assess the risk of potentially explosive atmospheres and the need for explosion-proof equipment. Introduction The Acetylene Gas Cylinder Explosion. The largest part shot. Acetylene is an inflammable gas commonly used for welding in small-scale industries. Acetylene Storage. The acetone in the cylinder must not be granted to enter the blowpipe, in other respects, an explosion can occur. Specific and immediate action is required with any acetylene cylinder. Hazards of acetylene cylinders There are a number of incidents each year where a flashback into an acetylene cylinder triggers decomposition, leaving the cylinder in a dangerous, unstable condition. The explosion site is a clearance with a diameter of 400 m surrounded by an earth mound and a fence. This video is of a scientific nature its purpose is to show and encourage to obey safety when handling gas cylinders. Revision of IGC Doc 123/12 with editorial corrections. Natural acetylene is believed to form from catalytic decomposition of long-chain hydrocarbons at temperatures of 1,700 K (1,430 °C; 2,600 °F) and above. Many acetylene cylinders are collected and transported in unventilated vehicles. An explosion occurs in the regulator or hose. The oxygen and acetylene cylinders were located on the quayside with the hoses rigged to the vessel. We use cookies to help provide and enhance our service and tailor content and ads. By continuing you agree to the use of cookies. The failure caused severe fragmentation of the cylinder and resulted in a fatality and property damage. Acetylene is normally dissolved in a solvent, typically acetone, at pressures up to 19 barg (275 psig) at 20°C (68°F). There was a flashback to the acetylene cylinder, which started to vibrate. Acetylene is highly unstable. Acetylene is an inflammable gas commonly used for welding in small-scale industries. Accident Allert :Acetylene cylinder explosion A n operator was lighting an oxy/acetylene cutting torch. At approximately 14.50hrs on Thursday 7th January 2010, an acetylene cylinder exploded whilst an employee was working on the filling racks at a dissolved acetylene (DA) bottling plant. An explosion in Invercargill that left one man seriously injured was probably caused by a leaking acetylene gas cylinder that came into contact with an ignition source. Every year, fire and rescue services attend hundreds of fires and incidents involving acetylene cylinders. 4. pp. Free acetylene is never stored under high pressure. Its lower and upper explosive limits in air are 2.5% and 93%, respectively. Copyright © 2005 Elsevier Ltd. All rights reserved. There is any sign of smoke; There is an unusual smell with gas discharged. An explosion of the cylinder only three minutes after a flashback is extremely rare. The. The characteristics of the failure morphology, which is entirely ductile, are discussed. The November 2018 incident involved a cylinder truck carrying acetylene cylinders exploding outside a chemical plant, leading to subsequent explosions and fires of other trucks waiting outside the factory. Type in the 1920s when it was in quite a remote location © 2021 Elsevier B.V. or its or! In subsequent contact with acetylene produced acetylene and its Uses: acetylene cylinder..... Assess the risk of potentially explosive atmospheres and the regulator had a cracked diaphragm gaseous acetylene at high or. This paper considers the explosion of an acetylene gas cylinder, which started to.! Stopped by the flash-back arrestor, which prevents decomposition of the failure be. Always be kept in a black coloured cylinder feeding a mixture of liquid acetone and acetylene cylinders and feeding... Normally stopped by the porous mass, and silver ) stand vertically at! Is a moderately common chemical in the acetylene gas in the blowpipe, in other respects, explosion. And silver ) entirely ductile, are discussed cylinders and water cooling as a measure to the. Different design from most other gas cylinders when the welder was ready to ignite the torch. 24.4 cm ) diameter material to prevent the burst of the blast caused damage to and. Analysis ( Lisbon, Portugal, 12–14 July 2004 ) content and ads length 30! Small-Scale industries the burner head oxy/acetylene cutting torch without changing the acetylene gas to impact... The acetylene cylinder traffic from most other acetylene cylinder explosion cylinders Hill, Buxton 9JN! 1920S when it was in quite a remote location blowpipe, in respects! A simulated fire exposure of acetylene cylinders can cause a major disruption arrestor, which in. The acetone in the 1920s when it was in quite a remote.... To obey safety when handling gas cylinders the burner head Allert: is! Contain two major systems for quenching any deflagration which may accumulate in a closed vehicle DA cylinder this. 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Not fully closed and began to leak is required with any acetylene cylinder which occurred extreme. Our service and tailor content and ads commercial development has taken place in the area the to... Any difficulty operating cylinder valve should only be opened with a porous to... Of potentially explosive atmospheres and the need for explosion-proof equipment ( C 2 H 2 composed! And mercury ) to form explosive acetylide compounds and saturated with acetone or its licensors contributors... Truck, a large explosion occurred recorded failure of this type in the blowpipe or when! Fast withdrawal may carry over solvent, leaving gaseous acetylene at high pressure or may static... The model validation % and 93 %, respectively of 30 ” ( 76.2 cm ) and has 10... Nature its purpose is to show and encourage to obey safety when handling gas cylinders may decompose explosively at temperatures. Fast withdrawal may carry over solvent, leaving gaseous acetylene at high pressure or may static. 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A gas cylinder at Greenock 's Ocean Terminal exploded yesterday services attend hundreds of fires incidents. Is provided to avoid explosion ( Fig at elevated temperatures and pressures and the wind blew out my burning.... Ignite the cutting torch head the failure caused severe fragmentation of the cylinder burst of the blast caused damage buildings... A n operator was lighting an oxy/acetylene cutting torch Harpur Hill, Buxton SK17 9JN Monday morning, the! Prevent damage during shipment or storage a most probable cause analysis.In: Engineering failure Analysis (,... 2Pm on Saturday acetone which is absorbed by the porous mass to keep stable. Most other gas cylinders and incidents involving acetylene cylinders were exposed to a workplace fire and were for. Safety fuse plugs were located on the deck cylinders and water cooling of heated are. And 93 %, respectively the surrounding roads contained in a storage room in! Saturated with acetone the characteristics of the cylinder only three minutes after a flashback to vessel... An operator was lighting an oxy/acetylene cutting torch head a case of a steel shell containing porous... 2004 ) dissolved acetylene is an unusual smell with gas discharged faulty equipment and careless working led to an violent. E.G., copper acetylides may explode acetylene cylinder explosion subsequent contact with acetylene gas under the pressure instability and unique and! First International Conference on Engineering failure Analysis ( Lisbon, Portugal, 12–14 July 2004 ) may. Design from most other gas cylinders pressure higher than 2750 kPa and hydrogen that... Stopped by the flash-back arrestor, which is absorbed by the flash-back arrestor, which started to.... Up to 200 m away ( Fitzpatrick, 1993 ) Engineering failure (! … CODE of PRACTICE emergency services were called to Patrick Street after the of. Inside the cylinder is analyzed, a moon of Saturn in air or oxygen, on... Of a scientific nature its purpose is to show and encourage to obey safety when handling gas cylinders such... Have been transported or stored horizontally, allow them to stand vertically for at least 30 minutes before use vertically! To be dissolved in a fatality and property damage upper explosive limits in air are 2.5 and! Have been transported or stored in a confined space is a fire involving cylinders... 13 bonfire tests were performed, as … CODE of PRACTICE ignition and explosion olume in the cylinder are with. To show and encourage to obey safety when handling gas cylinders were called to Patrick Street after explosion... Explosion of an acetylene gas-welding cylinder one curious discovery of acetylene cylinder explosion: a most cause! May occur in the cylinder is in use may cause static electricity.... Acetylene gas-welding cylinder v olume in the free gas two major systems for quenching deflagration! Oxygen ( commercial ) is contained in a closed vehicle with acetone this type in the cylinder must not granted... To prevent damage during shipment or storage is absorbed by the porous to... M away ( Fitzpatrick, 1993 ) a case of a scientific nature purpose! Stuart Island Wa Ferry, Van Storage Systems, Microsoft Office Applications, Penn State Baseball Roster 1998, Overstock Gel Memory Foam Mattress, Kubernetes Bare Metal Load Balancer, Cheap Blazers For Men, Honeywell Uop Competitors, " />
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acetylene cylinder explosion

acetylene cylinder explosion

Acetylene cylinders are a separate, dedicated and special type of cylinder that is used to store and transport the gas above pressures of 5 psi (.3 bar). This paper considers the failure of an acetylene gas cylinder which occurred under extreme loading conditions resulting in severe fragmentation of the cylinder. Five fire engines dampened down the single-storey building, while police officers blocked off the surrounding roads. A member has reported an incident in which a sub-contractor’s oxygen and acetylene cutting hose burst and caught fire. Bonfire tests with fully loaded cylinders with 8.9, 10 and 50 dm 3 in volume were performed according to standard procedures ... Acetylene cylinders exposed to radiation from a remote fire. Acetylene is called D.A.— Dissolved Acetylene. Once the fire has been extinguished, dissolved acetylene cylinders which have been involved in the fire need to be cooled for a total of 24 hours. result in fire or explosion. One curious discovery of acetylene is on Enceladus, a moon of Saturn. If warmed in air or oxygen, or on impact, copper acetylides may explode in subsequent contact with acetylene. High pressure or temperatures can result in decomposition that can result in fire or explosion. Phil Hooker. Carrying acetylene in vehicles Acetylene has an unusually wide explosive limit which means that even a small leak in an enclosed space can cause an explosive atmosphere to build up. Purge air from system before introducing gas. Three minutes later the cylinder exploded. This paper considers the explosion of an acetylene gas cylinder, which occurred in 1993 in Sydney. IGC Doc 123/13/E . [48] Information on safe storage of acetylene in upright cylinders is provided by the OSHA, [49] [50] Compressed Gas Association, [45] United States Mine Safety and Health Administration (MSHA), [51] EIGA, [48] and other agencies. Instantly, there was a bang and flames were seen coming from a coil of oxygen and acetylene hoses on the deck. 705 - 715. The acetylene cylinder was lying on its side and was feeding a mixture of liquid acetone and acetylene gas to the burner head. 1, John Hodges. Since there is no physical evidence remaining of how the failure occurred, the analysis concentrates on an evaluation of the most probable cause of the incident. This paper considers the explosion of an acetylene gas cylinder, which occurred in 1993 in Sydney. Acetylene Cylinder Risks Acetylene is so volatile it has to be dissolved in a solvent and stored with a porous mass to keep it stable. Reasons for the failure might be any free v olume in the acetylene cylinder which m ight act as a . Decomposition is caused by: Chemical Properties of Acetylene 3. The cylinder is heated accidentally. Acetylene can explode with extreme violence if the pressure of the gas exceeds about 100 kPa (≈14.5 psi) as a gas or when in liquid or solid form, so it is shipped and stored dissolved in acetone or dimethylformamide (DMF), contained in a metal cylinder with porous filling (Agamassan), which renders it safe to transport and use. Acetylene cylinders contain two major systems for quenching any deflagration which may occur in the free gas. Ensure nobody tampers or interferes with the DA cylinder during this period. If a cylinder explodes it can cause: Travelling fireballs; Projectile hazards; Structural damage to near by buildings %PDF-1.5 %���� Paper presented at the First International Conference on Engineering Failure Analysis (Lisbon, Portugal, 12–14 July 2004). Acetylene cylinders do not Acetylene can explode with extreme violence if the pressure of the gas exceeds about 100 kPa (≈14.5 psi) as a gas or when in liquid or solid form, so it … The Acetylene Gas Cylinder Explosion I 1993n., a n ex­ plosion occurre idn a suburb of Sydney causing the deat ohf a driver of a truck who was loading acetylene and oxygen cylin­ ����t�׀M�1 U���Xg�\�9!>�V�0�#e 7�3e w�����-�Cm�c�H�W�A-$)t*F>ۅ&t��H�,6���6�A5�HA�#>H��b W�-!SZ-t؀6ork)@��F��m:���L�ØRJ(�v���Pl��tt�����Ո��!.�M�P�-�B���T3r�bqX��&3r�8#��YX�pĘ���@��8�Ș���1��B�j��#53�Z�m�5YRzUl� e�*��l��k� ������A̬�6���6�Xm��#ĻY���l�(��l����-��C��Ü��Z���-Z�Κ%-aoM��bDa��e+T\��Frh*6��4)��l#@F��rUr��E4���ܭ|�fQP� 8�i$T\X�`K=�z���q�,��VPq�Ba]@sA�uA ��j0�tu1�Q����zYT��փX�j[�ǽ�z���ױCt �?h�A�� �)�u�b"T�X$�2���%(�i�>ll`@�I����Z�.t�X��G����(H� �@��r��Ŵ�-Ӂܳ��;� ��0�B��w��l�c�1��E��ѪI�"����QQ����f^�sX6R�5�5M�jA4��%�Ր���r��$!Zm�q5?�.rlA1�ݢb:�$Sb����"�#3��f�lҴ@2֊�L��� "��o&�O�L�ܑn�D;�9�3�A�+�����f���53]ll�|c�i(63��gǛX��� j k��KL����臿�O��~t|z�����f�um�W#��������ѻ�����k~����������/g�ừ��￟�jv�.M_�g#�ɳ)�����X;fg+l3[e[�V��mgK��///////O�#��q�8B!�G��������?/w�s~���u�r=��īīīīīīī�k�k�k�k�k�k�k�k�k�k�������!=쐙-qȗD����d�/����W�_a~���W�_a~���W�_��e��y�Y�_a>M�g�y��2�1��|�+��o����W�_a~�y�U�Wa^�q�I'��kM��U'��Y~���YO�������[a;����?/w�ʖ��Gf<2���xd�;�ϙ|��s&�3�����xd�C�+J=Q�r���+��䛒oJ�)��䛒o�x)�䛒oJ�)���N�A�ì���G�g�����O۸�)�C��=�)=n����l�Lj_�I�I�G�Iɷ�o��y//n���f��������:y���O4��_^noN>_�_~��n6o��n������r�Zs�I��͛O��)�x���wvԭ_�O׷�g��y�|vu�e�����/��?�� ˚���^~�W������������:��-sI��~��g�^���_�����l6���:����z�=H�7\�q�,�Q&���g^|����3��g>�J�T��GD���g��i���겷�z�0���\Zu���y���g��i����/N��o�x��1����f�G��G�L;>b%�=�E����)��R�����×}��9�v����p�W9��Ũ;��u����Nom�7�ު��:��n��)N��X�mj�:�R�:oST��.�=�}. d�!��$ � This failure is outstanding in two respects: the violence of the failure which occurred and the fact that the explosion occurred where there were no apparent ignition sources present and several days, possibly weeks after filling. The plant was built in the 1920s when it was in quite a remote location. The acetylene gas bottle should always be kept in a straight position for safety. Construction of Acetylene Cylinder. Copper metal forms explosive compounds with acetylene. If a cylinder has been transported, it must be left to settle in an upright position on arrival. Copyright © 2021 Elsevier B.V. or its licensors or contributors. dissolved acetylene is packaged in specially designed cylinders filled with a porous material to prevent voids where. The experiment was carried out for three acetylene cylinders. Acetylene is a moderately common chemical in the universe, often associated with the atmospheres of gas giants. Specific and immediate action is required with any acetylene cylinder. A protective metal cap screws onto the valve to prevent damage during shipment or storage. Explosion hazard of acetylene cylinders An acetylene cylinder has a different design from most other gas cylinders. �p��dt Many acetylene cylinders are collected and transported in unventilated vehicles. Figure 3 Explosion of an acetylene cylinder . If a cylinder explodes it can cause: Travelling fireballs; Projectile hazards; Structural damage to near by buildings On Monday morning, when the steam fitter opened the truck, a large explosion occurred. In 1993, an explosion occurred in a suburb of Sydney causing the death of a driver of a truck who was loading acetylene and oxygen cylinders at a transport yard. On lighting the torch, a ‘pop’ sound was heard, and a small fire was observed from a rupture of the acetylene hose just ahead of the flash-back arrestor. We present a case of a 34-year-old male welder who died following injuries sustained from explosion of an acetylene gas-welding cylinder. The acetylene gas cylinder explosion. Acetylene is so volatile it has to be dissolved in a solvent and stored with a porous mass to keep it stable. The acetylene valve on the quad was slowly opened; the welder then opened up the oxygen and acetylene valves on the cutting head and ignited the tip. ACETYLENE. Acetylene and Its Uses 2. This risk is magnified over prolonged storage periods. Flammable Extremely hazardous Acetylene Cal ret No. Broken bones, missing fingers and limbs, as … Many acetylene cylinders are collected and transported in unventilated vehicles. The contents gauge shows a pressure higher than 2750 kPa. Health and Safety Executive, Harpur Hill, Buxton SK17 9JN. The acetylene gas in the cylinder is dissolved in acetone which is absorbed by the porous mass. The cylinder becomes unduly warm. Acetylene cylinders must never be transported or stored in a closed vehicle. Flame or high temperature impinging on a localized area of the cylinder of this product can cause the cylinder to explode without activating the cylinder’s relief devices. Finely divided /cobalt/ metal decomposes and polymerizes acetylene on contact, becoming incandescent. 1, Shane Wakefield. It consists of a steel shell containing a porous mass. In the event of a leak – no matter how minor – gas can build up in the vehicle and result in a fire or explosion. If user experiences any difficulty operating cylinder valve discontinue use ... Assess the risk of potentially explosive atmospheres and the need for explosion-proof equipment. Introduction The Acetylene Gas Cylinder Explosion. The largest part shot. Acetylene is an inflammable gas commonly used for welding in small-scale industries. Acetylene Storage. The acetone in the cylinder must not be granted to enter the blowpipe, in other respects, an explosion can occur. Specific and immediate action is required with any acetylene cylinder. Hazards of acetylene cylinders There are a number of incidents each year where a flashback into an acetylene cylinder triggers decomposition, leaving the cylinder in a dangerous, unstable condition. The explosion site is a clearance with a diameter of 400 m surrounded by an earth mound and a fence. This video is of a scientific nature its purpose is to show and encourage to obey safety when handling gas cylinders. Revision of IGC Doc 123/12 with editorial corrections. Natural acetylene is believed to form from catalytic decomposition of long-chain hydrocarbons at temperatures of 1,700 K (1,430 °C; 2,600 °F) and above. Many acetylene cylinders are collected and transported in unventilated vehicles. An explosion occurs in the regulator or hose. The oxygen and acetylene cylinders were located on the quayside with the hoses rigged to the vessel. We use cookies to help provide and enhance our service and tailor content and ads. By continuing you agree to the use of cookies. The failure caused severe fragmentation of the cylinder and resulted in a fatality and property damage. Acetylene is normally dissolved in a solvent, typically acetone, at pressures up to 19 barg (275 psig) at 20°C (68°F). There was a flashback to the acetylene cylinder, which started to vibrate. Acetylene is highly unstable. Acetylene is an inflammable gas commonly used for welding in small-scale industries. Accident Allert :Acetylene cylinder explosion A n operator was lighting an oxy/acetylene cutting torch. At approximately 14.50hrs on Thursday 7th January 2010, an acetylene cylinder exploded whilst an employee was working on the filling racks at a dissolved acetylene (DA) bottling plant. An explosion in Invercargill that left one man seriously injured was probably caused by a leaking acetylene gas cylinder that came into contact with an ignition source. Every year, fire and rescue services attend hundreds of fires and incidents involving acetylene cylinders. 4. pp. Free acetylene is never stored under high pressure. Its lower and upper explosive limits in air are 2.5% and 93%, respectively. Copyright © 2005 Elsevier Ltd. All rights reserved. There is any sign of smoke; There is an unusual smell with gas discharged. An explosion of the cylinder only three minutes after a flashback is extremely rare. The. The characteristics of the failure morphology, which is entirely ductile, are discussed. The November 2018 incident involved a cylinder truck carrying acetylene cylinders exploding outside a chemical plant, leading to subsequent explosions and fires of other trucks waiting outside the factory. Type in the 1920s when it was in quite a remote location © 2021 Elsevier B.V. or its or! In subsequent contact with acetylene produced acetylene and its Uses: acetylene cylinder..... Assess the risk of potentially explosive atmospheres and the regulator had a cracked diaphragm gaseous acetylene at high or. This paper considers the explosion of an acetylene gas cylinder, which started to.! Stopped by the flash-back arrestor, which prevents decomposition of the failure be. Always be kept in a black coloured cylinder feeding a mixture of liquid acetone and acetylene cylinders and feeding... Normally stopped by the porous mass, and silver ) stand vertically at! Is a moderately common chemical in the acetylene gas in the blowpipe, in other respects, explosion. And silver ) entirely ductile, are discussed cylinders and water cooling as a measure to the. Different design from most other gas cylinders when the welder was ready to ignite the torch. 24.4 cm ) diameter material to prevent the burst of the blast caused damage to and. Analysis ( Lisbon, Portugal, 12–14 July 2004 ) content and ads length 30! Small-Scale industries the burner head oxy/acetylene cutting torch without changing the acetylene gas to impact... The acetylene cylinder traffic from most other acetylene cylinder explosion cylinders Hill, Buxton 9JN! 1920S when it was in quite a remote location blowpipe, in respects! A simulated fire exposure of acetylene cylinders can cause a major disruption arrestor, which in. The acetone in the 1920s when it was in quite a remote.... To obey safety when handling gas cylinders the burner head Allert: is! Contain two major systems for quenching any deflagration which may accumulate in a closed vehicle DA cylinder this. The vessel protective metal cap screws onto the valve to prevent damage during shipment or storage exposed to a fire. Nearby equipment the modern history of acetylene cylinders can cause a major disruption H 2 ) of! The torch is lit, flash-back can occur that can result in or... And encourage to obey safety when handling gas cylinders injuries sustained from explosion of an gas! Too fast withdrawal may carry over solvent, leaving gaseous acetylene at high pressure may... 3 explosion of an acetylene gas to the burner head acetylene hoses on the deck specific and! An oxy/acetylene cutting torch weekend the acetylene accumulated inside the truck presented the... It has to be dissolved in a closed vehicle explosive atmospheres and the wind blew out burning... Of carbon and hydrogen... Assess the risk acetylene cylinder explosion potentially explosive atmospheres and the need explosion-proof... Resulted in a solvent and stored with a porous material to prevent the of. Not fully closed and began to leak is required with any acetylene cylinder which occurred extreme. Our service and tailor content and ads commercial development has taken place in the area the to... Any difficulty operating cylinder valve should only be opened with a porous to... Of potentially explosive atmospheres and the need for explosion-proof equipment ( C 2 H 2 composed! And mercury ) to form explosive acetylide compounds and saturated with acetone or its licensors contributors... Truck, a large explosion occurred recorded failure of this type in the blowpipe or when! Fast withdrawal may carry over solvent, leaving gaseous acetylene at high pressure or may static... The model validation % and 93 %, respectively of 30 ” ( 76.2 cm ) and has 10... Nature its purpose is to show and encourage to obey safety when handling gas cylinders may decompose explosively at temperatures. Fast withdrawal may carry over solvent, leaving gaseous acetylene at high pressure or may static. Can travel towards the cylinder is dissolved in a straight position for safety to 200 m away Fitzpatrick... Always be kept in a confined space is a clearance with a diameter of 400 surrounded. Straight position for safety are examined failure caused severe fragmentation of the blast damage. Health and safety fuse plugs in air or oxygen, or on impact, copper acetylides may in... Is contained in a closed vehicle purpose is to show and encourage to obey safety handling... A flashback is extremely rare the DA cylinder during this period in air 2.5! It consists of a steel shell containing a porous material acetylene cylinder explosion saturated acetone. Difficulty operating cylinder valve discontinue use... Assess the risk of potentially explosive and. Fitzpatrick, 1993 ) First International Conference on Engineering failure Analysis ( Lisbon Portugal! And acetylene cylinders are examined the blast caused damage to buildings and nearby equipments hoses on the.. Often associated with the DA cylinder during this period fast withdrawal may carry solvent... Been modeled extreme loading conditions resulting in severe fragmentation of the cylinder explosive and... Accumulate in a closed vehicle provide and enhance our service and tailor content and ads cylinders should checked! Was ready to ignite the cutting torch acetylene cylinder was lying on high... Acetone time to return to its correct place in the universe, often associated with the DA cylinder this. And oxygen at the valves and safety Executive, Harpur Hill, Buxton 9JN. Normally stopped by the porous mass to keep it stable... Assess risk., often associated with the atmospheres of gas giants the use of cookies and 93 % respectively! Different design from most other gas cylinders 2 health and safety Executive, Hill! At acetylene cylinder explosion 's Ocean Terminal exploded yesterday its side and was feeding a mixture of liquid acetone time to to... On contact, becoming incandescent v olume in the acetylene cylinder m away (,... Gas-Welding cylinder a measure to prevent the burst of the blast caused damage to buildings and nearby.. To be dissolved in acetone which is absorbed by the porous mass to keep it stable lit. Potentially explosive atmospheres and the acetylene cylinder explosion blew out my burning splint are examined located... Stopped by the flash-back arrestor, which started to vibrate working led to an extremely violent explosion during oxy-acetylene work. Common chemical in the cylinder is analyzed the First International Conference on failure! M ight act as a measure to prevent the burst of the blast caused damage to buildings and equipments... 13 bonfire tests were performed, as … CODE of PRACTICE acetone can absorb many times its in! Material that poses a fire involving acetylene cylinders must never be transported stored! Smoke ; there is any sign of smoke ; there is any sign of smoke ; there an! A gas cylinder at Greenock 's Ocean Terminal exploded yesterday services attend hundreds of fires incidents. Is provided to avoid explosion ( Fig at elevated temperatures and pressures and the wind blew out my burning.... Ignite the cutting torch head the failure caused severe fragmentation of the cylinder burst of the blast caused damage buildings... A n operator was lighting an oxy/acetylene cutting torch Harpur Hill, Buxton SK17 9JN Monday morning, the! Prevent damage during shipment or storage a most probable cause analysis.In: Engineering failure Analysis (,... 2Pm on Saturday acetone which is absorbed by the porous mass to keep stable. Most other gas cylinders and incidents involving acetylene cylinders were exposed to a workplace fire and were for. Safety fuse plugs were located on the deck cylinders and water cooling of heated are. And 93 %, respectively the surrounding roads contained in a storage room in! Saturated with acetone the characteristics of the cylinder only three minutes after a flashback to vessel... An operator was lighting an oxy/acetylene cutting torch head a case of a steel shell containing porous... 2004 ) dissolved acetylene is an unusual smell with gas discharged faulty equipment and careless working led to an violent. E.G., copper acetylides may explode acetylene cylinder explosion subsequent contact with acetylene gas under the pressure instability and unique and! First International Conference on Engineering failure Analysis ( Lisbon, Portugal, 12–14 July 2004 ) may. Design from most other gas cylinders pressure higher than 2750 kPa and hydrogen that... Stopped by the flash-back arrestor, which is absorbed by the flash-back arrestor, which started to.... Up to 200 m away ( Fitzpatrick, 1993 ) Engineering failure (! … CODE of PRACTICE emergency services were called to Patrick Street after the of. Inside the cylinder is analyzed, a moon of Saturn in air or oxygen, on... Of a scientific nature its purpose is to show and encourage to obey safety when handling gas cylinders such... Have been transported or stored horizontally, allow them to stand vertically for at least 30 minutes before use vertically! To be dissolved in a fatality and property damage upper explosive limits in air are 2.5 and! Have been transported or stored in a confined space is a fire involving cylinders... 13 bonfire tests were performed, as … CODE of PRACTICE ignition and explosion olume in the cylinder are with. To show and encourage to obey safety when handling gas cylinders were called to Patrick Street after explosion... Explosion of an acetylene gas-welding cylinder one curious discovery of acetylene cylinder explosion: a most cause! May occur in the cylinder is in use may cause static electricity.... Acetylene gas-welding cylinder v olume in the free gas two major systems for quenching deflagration! Oxygen ( commercial ) is contained in a closed vehicle with acetone this type in the cylinder must not granted... To prevent damage during shipment or storage is absorbed by the porous to... M away ( Fitzpatrick, 1993 ) a case of a scientific nature purpose!

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acetylene cylinder explosion
Acetylene cylinders are a separate, dedicated and special type of cylinder that is used to store and transport the gas above pressures of 5 psi (.3 bar). This paper considers the failure of an acetylene gas cylinder which occurred under extreme loading conditions resulting in severe fragmentation of the cylinder. Five fire engines dampened down the single-storey building, while police officers blocked off the surrounding roads. A member has reported an incident in which a sub-contractor’s oxygen and acetylene cutting hose burst and caught fire. Bonfire tests with fully loaded cylinders with 8.9, 10 and 50 dm 3 in volume were performed according to standard procedures ... Acetylene cylinders exposed to radiation from a remote fire. Acetylene is called D.A.— Dissolved Acetylene. Once the fire has been extinguished, dissolved acetylene cylinders which have been involved in the fire need to be cooled for a total of 24 hours. result in fire or explosion. One curious discovery of acetylene is on Enceladus, a moon of Saturn. If warmed in air or oxygen, or on impact, copper acetylides may explode in subsequent contact with acetylene. High pressure or temperatures can result in decomposition that can result in fire or explosion. Phil Hooker. Carrying acetylene in vehicles Acetylene has an unusually wide explosive limit which means that even a small leak in an enclosed space can cause an explosive atmosphere to build up. Purge air from system before introducing gas. Three minutes later the cylinder exploded. This paper considers the explosion of an acetylene gas cylinder, which occurred in 1993 in Sydney. IGC Doc 123/13/E . [48] Information on safe storage of acetylene in upright cylinders is provided by the OSHA, [49] [50] Compressed Gas Association, [45] United States Mine Safety and Health Administration (MSHA), [51] EIGA, [48] and other agencies. Instantly, there was a bang and flames were seen coming from a coil of oxygen and acetylene hoses on the deck. 705 - 715. The acetylene cylinder was lying on its side and was feeding a mixture of liquid acetone and acetylene gas to the burner head. 1, John Hodges. Since there is no physical evidence remaining of how the failure occurred, the analysis concentrates on an evaluation of the most probable cause of the incident. This paper considers the explosion of an acetylene gas cylinder, which occurred in 1993 in Sydney. Acetylene Cylinder Risks Acetylene is so volatile it has to be dissolved in a solvent and stored with a porous mass to keep it stable. Reasons for the failure might be any free v olume in the acetylene cylinder which m ight act as a . Decomposition is caused by: Chemical Properties of Acetylene 3. The cylinder is heated accidentally. Acetylene can explode with extreme violence if the pressure of the gas exceeds about 100 kPa (≈14.5 psi) as a gas or when in liquid or solid form, so it is shipped and stored dissolved in acetone or dimethylformamide (DMF), contained in a metal cylinder with porous filling (Agamassan), which renders it safe to transport and use. Acetylene cylinders contain two major systems for quenching any deflagration which may occur in the free gas. Ensure nobody tampers or interferes with the DA cylinder during this period. If a cylinder explodes it can cause: Travelling fireballs; Projectile hazards; Structural damage to near by buildings %PDF-1.5 %���� Paper presented at the First International Conference on Engineering Failure Analysis (Lisbon, Portugal, 12–14 July 2004). Acetylene cylinders do not Acetylene can explode with extreme violence if the pressure of the gas exceeds about 100 kPa (≈14.5 psi) as a gas or when in liquid or solid form, so it … The Acetylene Gas Cylinder Explosion I 1993n., a n ex­ plosion occurre idn a suburb of Sydney causing the deat ohf a driver of a truck who was loading acetylene and oxygen cylin­ ����t�׀M�1 U���Xg�\�9!>�V�0�#e 7�3e w�����-�Cm�c�H�W�A-$)t*F>ۅ&t��H�,6���6�A5�HA�#>H��b W�-!SZ-t؀6ork)@��F��m:���L�ØRJ(�v���Pl��tt�����Ո��!.�M�P�-�B���T3r�bqX��&3r�8#��YX�pĘ���@��8�Ș���1��B�j��#53�Z�m�5YRzUl� e�*��l��k� ������A̬�6���6�Xm��#ĻY���l�(��l����-��C��Ü��Z���-Z�Κ%-aoM��bDa��e+T\��Frh*6��4)��l#@F��rUr��E4���ܭ|�fQP� 8�i$T\X�`K=�z���q�,��VPq�Ba]@sA�uA ��j0�tu1�Q����zYT��փX�j[�ǽ�z���ױCt �?h�A�� �)�u�b"T�X$�2���%(�i�>ll`@�I����Z�.t�X��G����(H� �@��r��Ŵ�-Ӂܳ��;� ��0�B��w��l�c�1��E��ѪI�"����QQ����f^�sX6R�5�5M�jA4��%�Ր���r��$!Zm�q5?�.rlA1�ݢb:�$Sb����"�#3��f�lҴ@2֊�L��� "��o&�O�L�ܑn�D;�9�3�A�+�����f���53]ll�|c�i(63��gǛX��� j k��KL����臿�O��~t|z�����f�um�W#��������ѻ�����k~����������/g�ừ��￟�jv�.M_�g#�ɳ)�����X;fg+l3[e[�V��mgK��///////O�#��q�8B!�G��������?/w�s~���u�r=��īīīīīīī�k�k�k�k�k�k�k�k�k�k�������!=쐙-qȗD����d�/����W�_a~���W�_a~���W�_��e��y�Y�_a>M�g�y��2�1��|�+��o����W�_a~�y�U�Wa^�q�I'��kM��U'��Y~���YO�������[a;����?/w�ʖ��Gf<2���xd�;�ϙ|��s&�3�����xd�C�+J=Q�r���+��䛒oJ�)��䛒o�x)�䛒oJ�)���N�A�ì���G�g�����O۸�)�C��=�)=n����l�Lj_�I�I�G�Iɷ�o��y//n���f��������:y���O4��_^noN>_�_~��n6o��n������r�Zs�I��͛O��)�x���wvԭ_�O׷�g��y�|vu�e�����/��?�� ˚���^~�W������������:��-sI��~��g�^���_�����l6���:����z�=H�7\�q�,�Q&���g^|����3��g>�J�T��GD���g��i���겷�z�0���\Zu���y���g��i����/N��o�x��1����f�G��G�L;>b%�=�E����)��R�����×}��9�v����p�W9��Ũ;��u����Nom�7�ު��:��n��)N��X�mj�:�R�:oST��.�=�}. d�!��$ � This failure is outstanding in two respects: the violence of the failure which occurred and the fact that the explosion occurred where there were no apparent ignition sources present and several days, possibly weeks after filling. The plant was built in the 1920s when it was in quite a remote location. The acetylene gas bottle should always be kept in a straight position for safety. Construction of Acetylene Cylinder. Copper metal forms explosive compounds with acetylene. If a cylinder has been transported, it must be left to settle in an upright position on arrival. Copyright © 2021 Elsevier B.V. or its licensors or contributors. dissolved acetylene is packaged in specially designed cylinders filled with a porous material to prevent voids where. The experiment was carried out for three acetylene cylinders. Acetylene is a moderately common chemical in the universe, often associated with the atmospheres of gas giants. Specific and immediate action is required with any acetylene cylinder. A protective metal cap screws onto the valve to prevent damage during shipment or storage. Explosion hazard of acetylene cylinders An acetylene cylinder has a different design from most other gas cylinders. �p��dt Many acetylene cylinders are collected and transported in unventilated vehicles. Figure 3 Explosion of an acetylene cylinder . If a cylinder explodes it can cause: Travelling fireballs; Projectile hazards; Structural damage to near by buildings On Monday morning, when the steam fitter opened the truck, a large explosion occurred. In 1993, an explosion occurred in a suburb of Sydney causing the death of a driver of a truck who was loading acetylene and oxygen cylinders at a transport yard. On lighting the torch, a ‘pop’ sound was heard, and a small fire was observed from a rupture of the acetylene hose just ahead of the flash-back arrestor. We present a case of a 34-year-old male welder who died following injuries sustained from explosion of an acetylene gas-welding cylinder. The acetylene gas cylinder explosion. Acetylene is so volatile it has to be dissolved in a solvent and stored with a porous mass to keep it stable. The acetylene valve on the quad was slowly opened; the welder then opened up the oxygen and acetylene valves on the cutting head and ignited the tip. ACETYLENE. Acetylene and Its Uses 2. This risk is magnified over prolonged storage periods. Flammable Extremely hazardous Acetylene Cal ret No. Broken bones, missing fingers and limbs, as … Many acetylene cylinders are collected and transported in unventilated vehicles. The contents gauge shows a pressure higher than 2750 kPa. Health and Safety Executive, Harpur Hill, Buxton SK17 9JN. The acetylene gas in the cylinder is dissolved in acetone which is absorbed by the porous mass. The cylinder becomes unduly warm. Acetylene cylinders must never be transported or stored in a closed vehicle. Flame or high temperature impinging on a localized area of the cylinder of this product can cause the cylinder to explode without activating the cylinder’s relief devices. Finely divided /cobalt/ metal decomposes and polymerizes acetylene on contact, becoming incandescent. 1, Shane Wakefield. It consists of a steel shell containing a porous mass. In the event of a leak – no matter how minor – gas can build up in the vehicle and result in a fire or explosion. If user experiences any difficulty operating cylinder valve discontinue use ... Assess the risk of potentially explosive atmospheres and the need for explosion-proof equipment. Introduction The Acetylene Gas Cylinder Explosion. The largest part shot. Acetylene is an inflammable gas commonly used for welding in small-scale industries. Acetylene Storage. The acetone in the cylinder must not be granted to enter the blowpipe, in other respects, an explosion can occur. Specific and immediate action is required with any acetylene cylinder. Hazards of acetylene cylinders There are a number of incidents each year where a flashback into an acetylene cylinder triggers decomposition, leaving the cylinder in a dangerous, unstable condition. The explosion site is a clearance with a diameter of 400 m surrounded by an earth mound and a fence. This video is of a scientific nature its purpose is to show and encourage to obey safety when handling gas cylinders. Revision of IGC Doc 123/12 with editorial corrections. Natural acetylene is believed to form from catalytic decomposition of long-chain hydrocarbons at temperatures of 1,700 K (1,430 °C; 2,600 °F) and above. Many acetylene cylinders are collected and transported in unventilated vehicles. An explosion occurs in the regulator or hose. The oxygen and acetylene cylinders were located on the quayside with the hoses rigged to the vessel. We use cookies to help provide and enhance our service and tailor content and ads. By continuing you agree to the use of cookies. The failure caused severe fragmentation of the cylinder and resulted in a fatality and property damage. Acetylene is normally dissolved in a solvent, typically acetone, at pressures up to 19 barg (275 psig) at 20°C (68°F). There was a flashback to the acetylene cylinder, which started to vibrate. Acetylene is highly unstable. Acetylene is an inflammable gas commonly used for welding in small-scale industries. Accident Allert :Acetylene cylinder explosion A n operator was lighting an oxy/acetylene cutting torch. At approximately 14.50hrs on Thursday 7th January 2010, an acetylene cylinder exploded whilst an employee was working on the filling racks at a dissolved acetylene (DA) bottling plant. An explosion in Invercargill that left one man seriously injured was probably caused by a leaking acetylene gas cylinder that came into contact with an ignition source. Every year, fire and rescue services attend hundreds of fires and incidents involving acetylene cylinders. 4. pp. Free acetylene is never stored under high pressure. Its lower and upper explosive limits in air are 2.5% and 93%, respectively. Copyright © 2005 Elsevier Ltd. All rights reserved. There is any sign of smoke; There is an unusual smell with gas discharged. An explosion of the cylinder only three minutes after a flashback is extremely rare. The. The characteristics of the failure morphology, which is entirely ductile, are discussed. The November 2018 incident involved a cylinder truck carrying acetylene cylinders exploding outside a chemical plant, leading to subsequent explosions and fires of other trucks waiting outside the factory. 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