WO2008141494A1 - Procédé et dispositif de découpage et de soudage à la flamme utilisant du pentane liquide comme combustible - Google Patents

Procédé et dispositif de découpage et de soudage à la flamme utilisant du pentane liquide comme combustible Download PDF

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Publication number
WO2008141494A1
WO2008141494A1 PCT/CN2007/002819 CN2007002819W WO2008141494A1 WO 2008141494 A1 WO2008141494 A1 WO 2008141494A1 CN 2007002819 W CN2007002819 W CN 2007002819W WO 2008141494 A1 WO2008141494 A1 WO 2008141494A1
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WO
WIPO (PCT)
Prior art keywords
evaporator
fuel
cutting
gas
torch
Prior art date
Application number
PCT/CN2007/002819
Other languages
English (en)
Chinese (zh)
Inventor
Shisu Wu
Original Assignee
Shisu Wu
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shisu Wu filed Critical Shisu Wu
Publication of WO2008141494A1 publication Critical patent/WO2008141494A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/38—Torches, e.g. for brazing or heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/28—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid in association with a gaseous fuel source, e.g. acetylene generator, or a container for liquefied gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/32—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23K—FEEDING FUEL TO COMBUSTION APPARATUS
    • F23K2300/00—Pretreatment and supply of liquid fuel
    • F23K2300/20—Supply line arrangements
    • F23K2300/205—Vaporising

Definitions

  • the present invention relates to a method and apparatus for applying flame cutting welding using a pentane liquid as a fuel. Background technique:
  • the fuel commonly used in existing flame cutting machines is a gas fuel such as acetylene, propylene, propylene or natural gas.
  • the gasoline cutting and welding machine developed in recent years uses gasoline liquid as fuel, which is characterized by energy saving, environmental protection and non-tempering.
  • Gasoline cutting welders are designed by spraying gasoline into small droplets for combustion. During the working process, it is often difficult to ignite, the flame is unstable, and the quality of cutting or splicing is affected. Therefore, it cannot be Generally accepted by users.
  • the object of the present invention is to provide a method and apparatus for flame-cutting a pentane liquid as a fuel using a simple composition of a ruthenium-based liquid fuel, which is abundant in source, inexpensive, and easily convertible into a gas.
  • a device for flame cutting with a pentane liquid as a fuel comprising a suction nozzle, an evaporator, an oxygen cylinder, and an oxygen connection of a suction-type torch through a hose and an oxygen cylinder
  • the pressure regulating valve is connected, and the gas joint of the suction-type cutting torch is connected with the evaporator through a hose, wherein the gas joint has a gas gas, the evaporator has a gas gas, and the evaporator is equipped with an explosion-proof wire and a sieve.
  • the sieve plate is located at the bottom of the explosion-proof wire, and a check valve and a sound-absorbing distributor are arranged below the sieve plate, one end of the check valve is connected with the sound-absorbing distributor, and the other end is connected to the breathing valve outside the evaporator through the pipe .
  • a float valve is also mounted inside the evaporator, and the float valve is connected to the rehydration outside the evaporator through a pipe.
  • the ignition performance is better and the stability is higher than that of the gasoline cutting welder, and the flame temperature of the cut welding is as high as 2600 ° C to 2800 ° C, and it is easy to adjust into a carbonized flame, a neutral flame and Oxidizing flame.
  • the carbonized flame has a strong black smoke.
  • the present invention does not have any black smoke, the ignition is easy, the flame is stable, no tempering occurs, the operation is simple, and when the cutting welding is stopped, there is no negative pressure in the evaporator. Function, can automatically stop working.
  • the evaporator of the invention has the advantages of simple structure, easy manufacture and low cost, and is under negative pressure working condition, and the evaporator is filled with an appropriate amount of explosion-proof wire, and the safety is high. It is proved that after adopting the scheme of the invention, the acetylene is used. Gas energy saving is up to 50%, which is more than 25% energy saving with propane gas. Since the combustion temperature is about 400-500 degrees Celsius higher than that of propylene carbonate, the steel plate or member having a thickness of 300 mm or less can be smoothly cut. The steel plate cut at the burning temperature is easier to process than the cutting opening cut by acetylene, and the bottom of the cutting opening is not hanged. Slag, suitable for industrial needs. BRIEF DESCRIPTION OF THE DRAWINGS:
  • FIG. 1 is a schematic view showing the structure of the apparatus of the present invention. detailed description:
  • the embodiment includes a suction-type cutting torch 1, an evaporator 2, an oxygen cylinder 3, and an oxygen connection of the injection-type welding torch 1 through a hose and an oxygen cylinder 3
  • the valve 11 is connected, and the gas connection of the suction-type cutting torch 1 is connected to the evaporator 2 through a hose, wherein the gas connection has a gas valve 12, and the evaporator 2 also has a gas width of 4, and the evaporator is internally provided.
  • Explosion-proof wire 7, sieve plate 8 The sieve plate 8 is located at the bottom of the explosion-proof wire 7, and the checker plate 8 is provided with a check valve 9 and a sound-damping distributor 10, one end of the check valve 9 is connected to the sound-damping distributor 10, and the other end is connected to the evaporator through the pipe. 2
  • the external breathing valve 5 is connected.
  • a float valve 13 is also mounted inside the evaporator 2, and the float valve 13 is connected to a refill valve 6 outside the evaporator through a pipe.
  • the specific method of the present invention is: when the regulating valve 11 on the oxygen cylinder 3 is opened to adjust to the required pressure, the preheating valve 14 in the suction-type welding torch 1 is opened, and the shooting in the suction-type welding torch 1 is started.
  • the suction device generates a negative pressure in the fuel passage, and then opens the gas valve 12 and the evaporator gas valve 4 on the gas joint, and the negative pressure directly causes the evaporator 2 to generate a negative pressure through the connecting pipe, opening the breathing valve 5, and the air
  • An upward flow of air is formed by the breathing valve 5, the check valve 9 and the noise attenuating distributor 10, and is evenly distributed through the sieve plate 8 to vigorously mix with the liquid pentane in the explosion-proof state in the explosion-proof wire 7.
  • the function of the check valve 9 in the evaporator 2 is to accidentally dump when the evaporator 2 is in operation, and the internal liquid is not leaked. Since the latent heat of vaporization of pentamidine is low and the boiling point is also low, the intense mixing with air at normal temperature can quickly absorb the heat of the environment outside the evaporator 2 made of metal to evaporate into a mixture of higher concentration of pentane gas and air. Under the action of negative pressure, it is continuously pumped into the suction device by the injection-type welding torch 1 and mixed with oxygen to form a gas injection to the nozzle for burning and cutting.
  • the filling of the pentane liquid can be sucked into the evaporator 2 by the fuel storage tank by opening the liquid filling valve 6, and automatically closed by the float valve 13 when the liquid level reaches a certain level.
  • the oxygen pressure of the torch is 0.6Mpa
  • the negative pressure of the gas interface is about 0.04 ⁇ 0.05Mpa
  • the evaporation of pentane liquid is 0.26 ⁇ 0.3L/h.
  • the flame can be easily adjusted to a neutral flame, the flame temperature is 2600 ° C ⁇ 2800 ° C, can smoothly cut 100 mm thick steel plate; if the injection type welding torch 1 uses the No.
  • the oxygen pressure is 0.3Mpa
  • the gas interface negative pressure is 0.035 ⁇ 0.04Mpa
  • the pentane liquid evaporation is 0.1 ⁇ 0.12L/h
  • the torch flame can be conveniently adjusted to oxidized flame, neutral flame, carbonized flame, flame
  • the temperature is 260 (TC ⁇ 2800 °C, which can be smoothly connected.
  • the advantages of the present invention are as follows: 1.
  • the ignition performance is better than that of the gasoline cutting welder, and the stability is high. No special torch or torch is required, and the original B-type suction torch and torch can be used to save the equipment re-investment and facilitate the purchase of wearing parts.
  • High safety even When the torch or torch is working, the gas pipe is broken or accidentally damaged, and there is no danger of gas leakage. Since the inside of the evaporator is filled with the explosion-proof wire according to the standard, no explosion will occur; 3.
  • the energy-saving effect is remarkable. Production costs are greatly reduced; 4, Wuxu is a by-product of the stone sleeve industry, and is a Class B green environmentally friendly fuel.
  • the burned exhaust gas is harmless to the human body and solves the outlet of the petroleum industry by-products, and protects the safety and health of users. 5, the efficiency of the cutting welding has been improved, the speed is slightly faster than the acetylene in the cutting process, easy to operate and master, easy to carry out the construction and so on.
  • the invention can be applied to the cutting of steel and the splicing of metal, and can be widely applied to glass fusion to replace the commonly used propylene gas and natural gas, and has remarkable safety and energy saving effects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Arc Welding In General (AREA)

Abstract

Cette invention concerne un procédé et un dispositif de découpage et de soudage à la flamme utilisant du pentane liquide comme combustible. Le procédé utilise du pentane comme combustible de sorte qu'une pression négative soit produite à l'ouverture d'un tube de raccordement de combustible lorsqu'un chalumeau découpeur à aspiration de jet fonctionne, qu'une pression négative soit également produite dans un évaporateur pour faire évaporer le pentane liquide en gaz dans l'évaporateur, puis que le pentane gazeux se mélange à l'oxygène à un rythme approprié dans le chalumeau découpeur afin de produire un gaz combustible pour le découpage et le soudage à la flamme. Le dispositif comprend un chalumeau découpeur et soudeur à aspiration de jet, un évaporateur et un réservoir à oxygène. Un raccord à oxygène du chalumeau découpeur et soudeur à aspiration de jet est relié par un tube flexible à une soupape de réglage de pression située sur le réservoir à oxygène ; un raccord à gaz combustible du chalumeau découpeur et soudeur à aspiration de jet est relié par un tube flexible à l'évaporateur ; une soupape de gaz combustible est attachée au raccord à gaz combustible, et une soupape de gaz combustible est également située sur l'évaporateur. Grâce au procédé et au dispositif décrits ci-dessus, en comparaison à un chalumeau découpeur fonctionnant avec de l'essence, les performances d'allumage sont meilleures, la stabilité est améliorée, la température de la flamme de découpage et de soudage monte jusqu'à 2600 °C-2800 °C et le fonctionnement est facilité.
PCT/CN2007/002819 2007-05-18 2007-09-26 Procédé et dispositif de découpage et de soudage à la flamme utilisant du pentane liquide comme combustible WO2008141494A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2007100280676A CN101049649B (zh) 2007-05-18 2007-05-18 以戊烷液体做为燃料进行火焰割焊的方法及其装置
CN200710028067.6 2007-05-18

Publications (1)

Publication Number Publication Date
WO2008141494A1 true WO2008141494A1 (fr) 2008-11-27

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PCT/CN2007/002819 WO2008141494A1 (fr) 2007-05-18 2007-09-26 Procédé et dispositif de découpage et de soudage à la flamme utilisant du pentane liquide comme combustible

Country Status (2)

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CN (1) CN101049649B (fr)
WO (1) WO2008141494A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108311769A (zh) * 2018-05-09 2018-07-24 中火焰节能科技秦皇岛有限公司 一种石脑油钢铁切割机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106855246A (zh) * 2015-12-08 2017-06-16 深圳市华晋源环境投资控股有限公司 一种戊烷转化成气体供给燃烧系统
CN106975818A (zh) * 2017-03-16 2017-07-25 赖瑞琪 适用于反恐防恐抢险消防的便携式小型安全火焰切割装置
CN110848568B (zh) * 2019-12-10 2024-07-05 安徽启东热能科技有限公司 一种焊割燃气的气化装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315732A (en) * 1979-12-26 1982-02-16 Jjnr Corporation Welding apparatus
RU2117216C1 (ru) * 1996-09-27 1998-08-10 Акционерное общество закрытого типа "Автогенмаш" Резак для кислородной резки стали на жидком горючем
CN2549326Y (zh) * 2002-07-02 2003-05-07 上海文田机电科技有限公司 吸射式汽油焊割器
CN1715748A (zh) * 2005-07-08 2006-01-04 吴世苏 射吸式常压汽油割炬
CN1724930A (zh) * 2005-07-05 2006-01-25 吴世苏 含精镏装置的射吸式无压汽油气化发生器
RU2278327C1 (ru) * 2005-05-13 2006-06-20 Ооо "Плазариум" Горелка
CN2804630Y (zh) * 2005-06-03 2006-08-09 张剑飚 戊烷燃料燃烧器

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201030465Y (zh) * 2007-05-18 2008-03-05 吴世苏 以戊烷液体做为燃料进行火焰割焊的装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4315732A (en) * 1979-12-26 1982-02-16 Jjnr Corporation Welding apparatus
RU2117216C1 (ru) * 1996-09-27 1998-08-10 Акционерное общество закрытого типа "Автогенмаш" Резак для кислородной резки стали на жидком горючем
CN2549326Y (zh) * 2002-07-02 2003-05-07 上海文田机电科技有限公司 吸射式汽油焊割器
RU2278327C1 (ru) * 2005-05-13 2006-06-20 Ооо "Плазариум" Горелка
CN2804630Y (zh) * 2005-06-03 2006-08-09 张剑飚 戊烷燃料燃烧器
CN1724930A (zh) * 2005-07-05 2006-01-25 吴世苏 含精镏装置的射吸式无压汽油气化发生器
CN1715748A (zh) * 2005-07-08 2006-01-04 吴世苏 射吸式常压汽油割炬

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108311769A (zh) * 2018-05-09 2018-07-24 中火焰节能科技秦皇岛有限公司 一种石脑油钢铁切割机

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CN101049649B (zh) 2010-08-25

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