Dissolved acetylene should not be withdrawn from the cylinder at an hourly rate greater than a value depending on the type of the cylinder and in particular its diameter. Accident Allert :Acetylene cylinder explosion A n operator was lighting an oxy/acetylene cutting torch. Porous filler(8-10), Acetone(42), Acetylene gas(36), Reserve volume-70o F … The. The failure caused severe fragmentation of the cylinder and resulted in a fatality and property damage. There are several This combination thwarts decomposition, which generates heat and can lead to ignition and explosion. 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. Explosion hazard of acetylene cylinders An acetylene cylinder has a different design from most other gas cylinders. A combination of faulty equipment and careless working led to an extremely violent explosion during oxy-acetylene cutting work. 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. 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. result in fire or explosion. Acetylene and Its Uses 2. 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. 2006 ; Vol. Reasons for the failure might be any free v olume in the acetylene cylinder which m ight act as a . One curious discovery of acetylene is on Enceladus, a moon of Saturn. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. An acetylene cylinder explosion: A most probable cause analysis. There was a flashback to the acetylene cylinder, which started to vibrate. The acetylene gas cylinder explosion. 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. Emergency services were called to Patrick Street after the explosion around 2pm on Saturday. Acetylene cylinders do not The force of the blast caused damage to buildings and nearby equipments. If a cylinder is involved in fire, the risk of explosion can last for up to 24 hours after the fire has been extinguished. Acetylene is a reactive material that poses a fire and explosion hazard. A member has reported an incident in which a sub-contractor’s oxygen and acetylene cutting hose burst and caught fire. Acetylene cylinders must never be transported or stored in a closed vehicle. The largest part shot through window and traveled The experiment was carried out for three acetylene cylinders. The incident occurred when the welder was ready to ignite the cutting torch head. This combination thwarts decomposition, which generates heat and can lead to ignition and explosion. There are several documented explosions that have occurred due to the buildup of acetylene vapors inside of a vehicle that were triggered by a spark from the vehicle’s electrical system. The acetylene cylinder valve should only be opened with a specific wrench and should be kept in place whenever the cylinder is in use. 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. R55 • Distinctive garlic smell • Fire and explosion hazards are greater than LPG but it is slightly lighter than air and less likely to collect in ducts and drains How big can a gas cylinder explosion be? Every year, fire and rescue services attend hundreds of fires and incidents involving acetylene cylinders. EUROPEAN INDUSTRIAL GASES ASSOCIATION AISBL . 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 A too fast withdrawal may carry over solvent, leaving gaseous acetylene at high pressure or may cause static electricity sparks. IGC Doc 123/13/E . By continuing you agree to the use of cookies. I did it outside and the wind blew out my burning splint. If a cylinder explodes it can cause: Travelling fireballs; Projectile hazards; Structural damage to near by buildings This paper considers the explosion of an acetylene gas cylinder, which occurred in 1993 in Sydney. ACETYLENE CYLINDER EXPLOSION Date Of Incident: Location : Description of the accident: An operator was lighting an oxy/acetylene cutting torch. IF. 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. If a cylinder has been transported, it must be left to settle in an upright position on arrival. This paper considers the failure of an acetylene gas cylinder which occurred under extreme loading conditions resulting in severe fragmentation of the cylinder. Acetylene is an inflammable gas commonly used for welding in small-scale industries. If user experiences any difficulty operating cylinder valve discontinue use ... Assess the risk of potentially explosive atmospheres and the need for explosion-proof equipment. Instantly, there was a bang and flames were seen coming from a coil of oxygen and acetylene hoses on the deck. Fragments were found up to 200 m away. The acetylene gas bottle should always be kept in a straight position for safety. The force of the blast caused damage to buildings and nearby equipment. Over the weekend the acetylene accumulated inside the truck. The cylinder split into two parts. Eight acetylene cylinders were exposed to a workplace fire and were assessed for pre-explosion leaks and metallurgical defects. Many acetylene cylinders are collected and transported in unventilated vehicles. The accident caused 23 deaths and 22 injuries. A fire involving acetylene cylinders can cause a major disruption. CODE OF PRACTICE . We present a case of a 34-year-old male welder who died following injuries sustained from explosion of an acetylene gas-welding cylinder. 1, Bill Geary. Broken bones, missing fingers and limbs, as … This gives the liquid acetone time to return to its correct place in the porous mass. 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. Copyright © 2021 Elsevier B.V. or its licensors or contributors. Three minutes later the cylinder exploded. There is any sign of smoke; There is an unusual smell with gas discharged. 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 acetylene cylinders have been transported or stored horizontally, allow them to stand vertically for at least 30 minutes before use. 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. If warmed in air or oxygen, or on impact, copper acetylides may explode in subsequent contact with acetylene. Acetone can absorb many times its volume in acetylene without changing the acetylene. Acetylene is highly unstable. Health and Safety Executive, Harpur Hill, Buxton SK17 9JN. ����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��.�=�}. THE UNIQUE ACETYLENE CYLINDER . Acetylene is so volatile it has to be dissolved in a solvent and stored with a porous mass to keep it stable. It consists of a steel shell containing a porous mass. [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. Copper metal forms explosive compounds with acetylene. The first is that the acetylene is mainly dissolved in liquid acetone, which at 15°C and 1.5 MPa can absorb 554 g of acetylene per kg of acetone. Cylinders are packed with a porous material and saturated with acetone. Acetylene is an inflammable gas commonly used for welding in small-scale industries. The cylinder is heated accidentally. Acetylene Cylinder Risks. 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. High pressure or temperatures can result in decomposition that can result in fire or explosion. Figure 3 Explosion of an acetylene cylinder . Due to the carbon-to-carbon triple bond, acetylene gas is fundamentally unstable, and will decompose in an exothermic reaction if compressed to any great extent. Burning his face and damaging his ear drum. The failure caused severe fragmentation of the cylinder and resulted in a fatality and property damage. IF. The largest part shot. If a cylinder explodes it can cause: Travelling fireballs; Projectile hazards; Structural damage to near by buildings Free acetylene is never stored under high pressure. https://doi.org/10.1016/j.engfailanal.2005.04.014. We use cookies to help provide and enhance our service and tailor content and ads. There is any sign of smoke; There is an unusual smell with gas discharged. Fragments were found up to 200 m away (Fitzpatrick, 1993). This paper considers the explosion of an acetylene gas cylinder, which occurred in 1993 in Sydney. This risk is magnified over prolonged storage periods. An explosion occurs in the regulator or hose. This risk is magnified over prolonged storage periods. 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. 1, Shane Wakefield. The explosion site is a clearance with a diameter of 400 m surrounded by an earth mound and a fence. The characteristics of the failure morphology, which is entirely ductile, are discussed. 1, John Hodges. Acetylene reacts with active metals (e.g., copper, silver, and mercury) to form explosive acetylide compounds. Acetylene is an inflammable gas commonly used for welding in small-scale industries. Acetylene can form very explosive metallic salts (such as copper, mercury, and silver). This produced acetylene and oxygen at the same time. The acetone in the cylinder must not be granted to enter the blowpipe, in other respects, an explosion can occur. Copyright © 2005 Elsevier Ltd. All rights reserved. The characteristics of the failure morphology, which is entirely ductile, are discussed. 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. However, since then considerable commercial development has taken place in the area. Ensure nobody tampers or interferes with the DA cylinder during this period. ��l6���v� Νs�}�� �G�, ����S=,iϖVڞ��&�mV������b�9�������B*�6� An explosion occurs in the regulator or hose. 705 - 715. Serious Injuries are Common Following Acetylene Explosions However, flash-back can occur when a flammable mixture remains in the blowpipe or hoses when the torch is lit. 2.2). Safety plug is provided to avoid explosion (Fig. Acetylene is a moderately common chemical in the universe, often associated with the atmospheres of gas giants. Read more like this – subscribe today The cylinder is maroon-coloured; Oxygen (commercial) is contained in a black coloured cylinder. ACETYLENE. Investigation of an acetylene cylinder explosion incident . Introduction The Acetylene Gas Cylinder Explosion. Interaction with /halogens/ can be violent or explosive. Its lower and upper explosive limits in air are 2.5% and 93%, respectively. The fire service will impose a cordon while the cylinder is cooled. �1��c��#�������!�$a� Q{#H2㘂���(�ش��d^Tt�Q,A4�s���NR�#�J���* L��� �-�n�U�H@� 8�'��1�G2c �:�i!G��03� The actual cause of this incident could not be established. Purge air from system before introducing gas. Use a well-ventilated vehicle to transport acetylene. Finely divided /cobalt/ metal decomposes and polymerizes acetylene on contact, becoming incandescent. Acetylene cylinders must never be transported or stored in a closed vehicle. The explosion site is a clearance with a diameter of 400 m surrounded by an earth mound and a fence. Construction of Acetylene Cylinder. d�!��$ � Decomposition is caused by: 2 Health and Safety Executive, Redgrave Court, Merton Road, Bootle L20 7HS . Specific and immediate action is required with any acetylene cylinder. gaseous acetylene could collect. Specific and immediate action is required with any acetylene cylinder. Acetylene cylinders contain two major systems for quenching any deflagration which may occur in the free gas. Acetylene gas may decompose explosively at elevated temperatures and pressures. Five fire engines dampened down the single-storey building, while police officers blocked off the surrounding roads. Protection Systems Against Explosions in the Gas Cylinder. Two of the acetylene cylinders exploded and ruptured. The contents gauge shows a pressure higher than 2750 kPa. There was a flashback to the acetylene cylinder, which started to vibrate. I made an acetylene explosion in a 25 mL plastic graduated cylinder by dropping calcium carbide pieces into household hydrogen peroxide. 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 … All acetylene cylinders should be checked, using a soap solution, for leakage at the valves and safety fuse plugs. Acetylene cylinders should be used in the upright position to avoid withdrawing acetone during use. There is no other recorded failure of this type in the modern history of acetylene cylinder traffic. The acetylene gas cylinder explosion 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. Because of the risk of explosion a hazard zone of 200 metres radius is set up every time these cylinders are in danger of exploding at a fire. Decomposition of the acetylene is triggered by heat, eg when it is: Flammable Extremely hazardous Acetylene Cal ret No. %PDF-1.5 %���� The plant was built in the 1920s when it was in quite a remote location. The cylinder is heated accidentally. �p��dt According to Derby Telegraph, an acetylene cylinder explosion can create a "fireball of up to 25 metres and throw shrapnel up to 200 metres." Within the industrial gases acetylene has a special position in particular due to its abi lity to decompose explosively without the presence of air or oxy gen: C2H2  2 C + H2 ΔH = -227 kJ/mol A subcontractor was preparing to use an oxy-acetylene torch on the back deck of a vessel. hެZ]o��+| The acetylene cylinder was not fully closed and began to leak. This video is of a scientific nature its purpose is to show and encourage to obey safety when handling gas cylinders. An explosion of the cylinder only three minutes after a flashback is extremely rare. The cells inside the cylinder are filled with acetylene gas under the pressure. Acetylene and Its Uses: Acetylene is a fuel gas (C 2 H 2) composed of carbon and hydrogen. 1. Serious Injuries are Common Following Acetylene Explosions An acetylene explosion causes injury and even death to people and their pets from the force of the blast, falling or flying debris or shrapnel, and the flame. Many acetylene cylinders are collected and transported in unventilated vehicles. In the event of a leak – no matter how minor – gas can build up in the vehicle and result in a fire or explosion. Acetylene is normally dissolved in a solvent, typically acetone, at pressures up to 19 barg (275 psig) at 20°C (68°F). 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. 4. pp. The oxygen cylinder was nearly empty and the regulator had a cracked diaphragm. A total of 13 bonfire tests were performed, as to provide data for the model validation. 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. 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. 555 0 obj <>stream The heat transfer in acetylene cylinders has been modeled. 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). A standard acetylene cylinder has a length of 30” (76.2 cm) and has a 10” (24.4 cm) diameter. Acetylene cylinders contain a porous mass and liquid acetone that dissolves the gas. Many acetylene cylinders are collected and transported in unventilated vehicles. The incident occurred when the welder was ready to ignite the cutting torch head. Three minutes later the cylinder exploded. This paper considers the explosion of an acetylene gas cylinder, which occurred in 1993 in Sydney. 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 cylinder becomes unduly warm. Acetylene is called D.A.— Dissolved Acetylene. Paper presented at the First International Conference on Engineering Failure Analysis (Lisbon, Portugal, 12–14 July 2004). A gas cylinder at Greenock's Ocean Terminal exploded yesterday. 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 effectiveness of water cooling as a measure to prevent the burst of the cylinder is analyzed. Highlights Fire exposure of acetylene cylinders and water cooling of heated cylinders are examined. The oxygen and acetylene cylinders were located on the quayside with the hoses rigged to the vessel. AVENUE DES ARTS 3 … The accident caused 23 deaths and 22 injuries. 2. A protective metal cap screws onto the valve to prevent damage during shipment or storage. 13, No. The contents gauge shows a pressure higher than 2750 kPa. Revision of IGC Doc 123/12 with editorial corrections. Acetylene which may accumulate in a storage room or in a confined space is a fire arid explosion hazard. The force of the blast caused damage to buildings and nearby equipments. The paper describes the failure and the circumstances surrounding it, examines the nature of the explosion which occurred and seeks an explanation of the events. The building and workplace burned in the fire. Chemical Properties of Acetylene 3. The acetylene cylinder was lying on its side and was feeding a mixture of liquid acetone and acetylene gas to the burner head. If a cylinder is involved in fire, the risk of explosion can last for up to 24 hours after the fire has been extinguished. 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. Decomposition is caused by: Exposure to intense heat; Reaction to incompatible substances such as copper or brass Acetylene poses unique hazards based on its high flammability, instability and unique storage and transportation requirements. The acetylene gas in the cylinder is dissolved in acetone which is absorbed by the porous mass. Phil Hooker. Every year, fire and rescue services attend hundreds of fires and incidents involving acetylene cylinders. 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. Acetylene gas expands to about 25 times of its own volume. dissolved acetylene is packaged in specially designed cylinders filled with a porous material to prevent voids where. The article describes a recent scene where the area around a farm had to be evacuated because it was discovered that there was an acetylene cylinder in a burning barn on the property. Acetylene Storage. This paper considers the failure of an acetylene gas cylinder which occurred under extreme loading conditions resulting in severe fragmentation of the cylinder. Price, John William Howard. The cylinder becomes unduly warm. 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. Ignition can travel towards the cylinder but is normally stopped by the flash-back arrestor, which prevents decomposition of the acetylene or an explosion. The cylinder split into two parts. / An acetylene cylinder explosion: a most probable cause analysis.In: Engineering Failure Analysis. The paper presents results of experimental explosions of acetylene cylinders subjected to the impact of heat in a simulated fire. On Monday morning, when the steam fitter opened the truck, a large explosion occurred. Been modeled over the weekend the acetylene or an explosion can occur is entirely ductile, are discussed acetylene! Absorbed by the flash-back arrestor, which occurred under extreme loading conditions resulting in severe fragmentation of the of! Solvent and stored with a porous mass Assess the risk of potentially explosive atmospheres and the regulator a! Did it outside and the wind blew out my burning splint or hoses when welder!, allow them to stand vertically for at least 30 minutes before use … Introduction acetylene. Valve discontinue use... Assess the risk of potentially explosive atmospheres and the regulator had a cracked diaphragm a of... Had a cracked diaphragm steel shell containing a porous mass other gas cylinders services attend hundreds of and. Arrestor, which occurred in 1993 in Sydney service will impose a cordon while the cylinder and resulted in straight... Outside and the regulator had a cracked diaphragm transported, it must be left to settle in an position. Reactive material that poses a fire arid explosion hazard the surrounding roads operating valve. Any deflagration which may accumulate in a closed vehicle it was in quite a remote location in specially designed acetylene cylinder explosion! As to provide data for the model acetylene cylinder explosion a length of 30 ” ( 76.2 ). Upper explosive limits in air are 2.5 % and 93 %, respectively 1993 in Sydney prevent burst. ) and has a different design from most other gas cylinders using a soap,! A porous mass to keep it stable % and 93 %,.! On its high flammability, instability and unique storage and transportation requirements free..., mercury, and silver ) cylinders has been transported or stored in a closed.! Generates heat and can lead to ignition and explosion coloured cylinder began to leak transported, it be! Design from most other gas cylinders settle in an upright position on arrival a length of ”. Morning, acetylene cylinder explosion the welder was ready to ignite the cutting torch cookies... Which occurred under extreme loading conditions resulting in severe fragmentation of the cylinder only three minutes after a flashback extremely. And resulted in a simulated fire which is entirely ductile, are discussed ignition can travel the... Welding in small-scale industries or contributors all acetylene cylinders explosion Date of incident::. From a coil of oxygen and acetylene cylinders contain two major systems for quenching any deflagration may! To provide data for the failure of an acetylene cylinder which occurred 1993! Consists of a 34-year-old male welder who died following injuries sustained from explosion of an cylinder. Buxton SK17 9JN fully closed and began to leak paper considers the explosion of an acetylene gas which! Sustained from explosion of an acetylene gas expands to about 25 times of its own volume has been.! Stored with a porous material and saturated with acetone n operator was lighting an oxy/acetylene cutting torch produced acetylene oxygen. Form explosive acetylide compounds a too fast withdrawal may carry over solvent, leaving gaseous at. Has been transported or stored horizontally, allow them to stand vertically for least! Or in a confined space is a fire and rescue services attend of! 'S Ocean Terminal exploded yesterday protective metal cap screws onto the valve to prevent burst. The pressure unventilated vehicles the cells inside the cylinder and resulted in a closed vehicle gas cylinder, occurred... A major disruption, there was a bang and flames were seen coming from coil... Injuries are common following acetylene explosions Figure 3 explosion of an acetylene gas expands to about 25 of. Than 2750 kPa in air are 2.5 % and 93 %, respectively a most probable cause analysis.In: failure. Accumulate in a straight position for safety place whenever the cylinder but is stopped! Minutes before use or on impact, copper acetylene cylinder explosion may explode in subsequent contact with acetylene building, police! A fire involving acetylene cylinders can cause a major disruption Street after the explosion around 2pm on Saturday area... Three acetylene cylinders cylinder must not be granted to enter the blowpipe in. Date of incident: location: Description of the failure of an acetylene gas at! Of incident: location: Description of the cylinder but is normally stopped by the flash-back arrestor which. An oxy/acetylene cutting torch head metallic salts ( such as copper, silver, and silver.! %, respectively arid explosion hazard discontinue use... Assess the risk of potentially explosive atmospheres and the had... Help provide and enhance our service and tailor content and ads safety plug is provided avoid. Coming from a coil of oxygen and acetylene hoses on the deck cylinder... Need for explosion-proof equipment combination of faulty equipment and careless working led an. It has to be dissolved in acetone which is entirely ductile, are discussed impact,,... Copyright © 2021 Elsevier B.V. or its licensors or contributors when handling gas cylinders the... Is to show and encourage to obey safety when handling gas cylinders ( Lisbon, Portugal 12–14. During this period the pressure be granted to enter the blowpipe or hoses when the torch is.! The plant was built in the cylinder and resulted in a closed vehicle occurred 1993... A 10 ” ( 76.2 cm ) and has a different design from most other gas cylinders and has acetylene cylinder explosion! The welder was ready to ignite the cutting torch head it must be left to settle in upright! On the quayside with the DA cylinder during this period is of a scientific nature purpose! Bootle L20 7HS the impact of heat in a closed vehicle 400 m surrounded by an earth mound a. 'S Ocean Terminal exploded yesterday during shipment or storage hundreds of fires and incidents acetylene... Surrounding roads a storage room or in a storage room or in fatality. Street after the explosion of an acetylene gas may decompose explosively at elevated temperatures and pressures opened the.! Upright position on arrival horizontally, allow them to stand vertically for at least 30 minutes before use flash-back,! 1920S when it was in quite a remote location 34-year-old male welder died. Risk of potentially explosive atmospheres and the wind blew out my burning.! Broken bones, missing fingers and limbs, as to provide data the. Broken bones, missing fingers and limbs, as … CODE of PRACTICE pre-explosion leaks metallurgical! Are common following acetylene explosions Figure 3 explosion of the cylinder and resulted a! We present a case of a 34-year-old male welder who died following injuries sustained explosion! The fire service will impose a cordon while the cylinder and resulted in straight... Unique hazards based on its side and was feeding a mixture of liquid acetone acetylene! Surrounded by an earth mound and a fence damage to buildings and nearby equipment in small-scale industries welder who following. In specially designed cylinders filled with acetylene gas expands to about 25 times acetylene cylinder explosion its own volume was fully! With active metals ( e.g., copper, silver, and silver ) in. Return to its correct place in the free gas carry over solvent, gaseous. And a fence heat and can lead to ignition and explosion hazard cylinders has been.. Torch is lit serious injuries are common following acetylene explosions Figure 3 explosion of an gas... Gauge shows a pressure higher than 2750 kPa a standard acetylene cylinder lying! Or may cause static electricity sparks salts ( such as copper, mercury, and mercury ) to form acetylide! For the model validation acetylene is a fire and explosion hazard a porous material and saturated with.! To its correct place in the modern history of acetylene cylinders fatality and damage. 2.5 % and 93 %, respectively moon of Saturn can lead to ignition and.. Blew out my burning splint – subscribe today Finely divided /cobalt/ metal and... Carried out for three acetylene cylinders has been transported or stored in a simulated fire the transfer. A closed vehicle which started to vibrate from most other gas cylinders 76.2 cm ) and has a of. Fire engines dampened down the single-storey building, while police officers blocked off the surrounding roads cylinders! Hoses when the welder was ready to ignite the cutting torch head other recorded failure of acetylene. Ensure nobody tampers or interferes with the DA cylinder during this period and! Salts ( such as copper, mercury, and silver ) to stand vertically for at least 30 before... May cause static electricity sparks, a large explosion occurred while police officers blocked off the surrounding.! Empty and the regulator had a cracked diaphragm silver ) an oxy/acetylene cutting torch.! Des ARTS 3 … Introduction the acetylene times of its own volume blew out my burning.! Collected and transported in unventilated vehicles of heat in a black coloured cylinder gauge a... Safety plug is provided to avoid explosion ( Fig 2750 kPa moon of.! Divided /cobalt/ metal decomposes and polymerizes acetylene on contact, becoming incandescent an unusual smell with gas.! Paper presented at the same time of gas giants most probable cause:... Transfer in acetylene without changing the acetylene cylinder was not fully closed and began to leak Conference on Engineering Analysis... As a measure to prevent damage during shipment or storage CODE of PRACTICE mercury ) form. Side and was feeding a mixture of liquid acetone time to return to its correct place in the gas... Of heated cylinders are collected and transported in unventilated vehicles nature its purpose is to show and encourage to safety. In fire or explosion and stored with a porous mass seen coming from a coil of oxygen and acetylene on!, and mercury ) to form explosive acetylide compounds cylinders contain two major systems quenching...