CN1382779A - Environment protection type energy-saving welding-cutting liquid (industrial gas) - Google Patents
Environment protection type energy-saving welding-cutting liquid (industrial gas) Download PDFInfo
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- CN1382779A CN1382779A CN 02117255 CN02117255A CN1382779A CN 1382779 A CN1382779 A CN 1382779A CN 02117255 CN02117255 CN 02117255 CN 02117255 A CN02117255 A CN 02117255A CN 1382779 A CN1382779 A CN 1382779A
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- gas
- lpg
- liquefied petroleum
- auxiliary agent
- environment protection
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Abstract
An industrial welding-cutting gas contains liquefied petroleum gas containing C3 and C4 and promoter as assistant which is prepared from 2-methoxypropane, dipentene, etc, through mixing. Its advantages are high cobustion stability and quality, high welding-cutting quality, no environmental pollution, and high safety.
Description
Technical field
The present invention relates to liquid hydrocarbon fuel, particularly be used for a kind of environment protection type energy-saving welding-cutting liquid (industrial gas) that promotes auxiliary agent that contains of metal cutting and welding.
Background technology
Oxy-acetylene flame cutting and welding that China's metal processing at present, machinery manufacturing industry adopt, acetylene combustion gas in use is not only inflammable, explosive, contaminate environment, and production cost height, the energy consumption of used calcium carbide are big, labor condition is abominable, one ton of calcium carbide of every production on average adopts Calcium Carbide Ash 950-1500 kilogram, coke or hard coal 500-600 kilogram, power consumption 2900-3400 kilowatt/hour and a large amount of electrode materials contain poison gases such as phosphuret-(t)ed hydrogen and hydrogen arsenide in the acetylene gas simultaneously.In China use liquefied petroleum gas (LPG) (propane) cutting metal is arranged also, but can not be used for welding, thus countries in the world all seek, inquire into can replace ethine gas other industrial fuel.
Summary of the invention
The purpose of this invention is to provide a kind of environment protection type energy-saving welding-cutting liquid (industrial gas), have safe, pollution-free, cost is low, a kind of hydro carbons industrial combustion gas that not only can cut but also can weld, it comprises liquefied petroleum gas (LPG) and promotes auxiliary agent, and it is characterized in that: described liquefied petroleum gas (LPG) contains the C of 65-98%
3, 2-35% C
4, do not conform to methyl-sulfuric acid, thiomethyl alcohol; Described promotion auxiliary agent is for mainly closing the mixing solutions that iron, pentane are formed by 2-methoxy propane, methyl cyclopentadiene, kautschin, dicyclopentadiene, two rings, penta vinyl.
The described C that contains
3, C
4Liquefied petroleum gas (LPG), promote that auxiliary agent is respectively to contain C by weight percentage in the liquid industrial combustion gas
3, C
4Liquefied petroleum gas (LPG) be 98%, the promotion auxiliary agent is 0.5-0.8%.
The composition that described promotion auxiliary agent comprises is in weight percent concentration: the 2-methoxy propane is 1.5%, methyl cyclopentadiene is 2%, kautschin is 50%, dicyclopentadiene is that 35%, two rings, penta vinyl closes that iron is 0.07%, pentane is 43.9%.The process for preparation of described liquid industrial combustion gas is earlier 2-methoxy propane, methyl cyclopentadiene, two rings, penta vinyl to be closed iron and kautschin etc. and add simultaneously in the low-temp low-pressure rectifying tower, in ℃ scope of low temperature-2～-5, rectification process half an hour under 0.02～0.05MP low pressure, obtain mixing liquid, same then pentane, dicyclopentadiene are put into together and are mixed steel basin, mix, be mixed into the liquid industrial combustion gas in 0.5～0.8% adding liquefied petroleum gas (LPG) by weight percentage at last.
It is 1. the present invention add a small amount of promotion auxiliary agent in liquefied petroleum gas (LPG) after that the present invention reaches beneficial effect, expanded the use range of liquefied petroleum gas (LPG), having overcome liquefied petroleum gas (LPG) can only cut, unweldable defective, can have identical functions with acetylene gas, its joint-cutting and quality of welding spot are better than acetylene gas.2. not tempering in using, be difficult for blasting, safer, reliable than acetylene, risk level only is 1/10th of an acetylene gas, and harmless.3. remarkable in economical benefits reduces combustion gas cost about 70% than acetylene gas, and the similar combustion gas from external introduction reduces expense 34～40%.
Description of drawings
Fig. 1 is liquid industrial combustion gas preparation process figure.
Embodiment
A kind of environment protection type energy-saving welding-cutting liquid (industrial gas), it contains liquefied petroleum gas (LPG) and promotes auxiliary agent, a kind of hydro carbons industrial combustion gas that not only can cut but also can weld.This liquefied petroleum gas (LPG) contains the C of 65-98%
3, 2-35% C
4, do not contain methyl-sulfuric acid, thiomethyl alcohol; The composition that contained promotion auxiliary agent comprises is mainly by 2-methoxy propane CH
3OC (CH
3)
3, methyl cyclopentadiene
Kautschin
Dicyclopentadiene
Two rings, penta vinyl closes the mixing solutions of iron, pentane composition.Its each composition accounts for concentration expressed in percentage by weight: 2-methoxy propane 1.5%, methyl cyclopentadiene 2%, kautschin 50%, dicyclopentadiene 35%, two rings, penta vinyl close iron 0.07%, pentane 43.9%, in the liquid industrial combustion gas, liquefied petroleum gas (LPG) is 98% by weight percentage, the promotion auxiliary agent is 0.5-0.8%.The process for preparation of liquid industrial combustion gas of the present invention is earlier 2-methoxy propane, methyl cyclopentadiene, two rings, penta vinyl to be closed iron and kautschin etc. and add simultaneously in the low-temp low-pressure rectifying tower 1, in ℃ scope of low temperature-2～-5, rectification process half an hour under 0.02～0.05MP low pressure, obtain mixing liquid, same then pentane, dicyclopentadiene are put into together and are mixed steel basin 4, mix under the effect of recycle pump 2, some promotor finished barrel 3 sealings of packing into are preserved; A part of and lng tanker irritates that liquefied gas pour into combustion gas simultaneously in 7, promotes in the miscible groove 6 of auxiliary agent, and is molten according to the above ratio and becomes liquid industrial combustion gas finished product, is fed into that the high-pressure cylinder jar 5 that can bear 3Mpa pressure is interior stores use.
Claims (4)
1. environment protection type energy-saving welding-cutting liquid (industrial gas), it comprises liquefied petroleum gas (LPG) and promotes auxiliary agent, and it is characterized in that: described liquefied petroleum gas (LPG) contains the C of 65-98%
3, 2-35% C
4, do not contain methyl-sulfuric acid, thiomethyl alcohol; Described promotion auxiliary agent is for mainly closing the mixing solutions that iron, pentane are formed by 2-methoxy propane, methyl cyclopentadiene, kautschin, dicyclopentadiene, two rings, penta vinyl.
2. environment protection type energy-saving welding-cutting liquid (industrial gas) according to claim 1 is characterized in that: the described C of containing
3, C
4Liquefied petroleum gas (LPG), promote that auxiliary agent is respectively to contain C by weight percentage in the liquid industrial combustion gas
3, C
4Liquefied petroleum gas (LPG) be 98%, the promotion auxiliary agent is 0.5-0.8%.
3. environment protection type energy-saving welding-cutting liquid (industrial gas) according to claim 1 and 2 is characterized in that: the composition that described promotion auxiliary agent comprises is in weight percent concentration: the 2-methoxy propane is 1.5%, methyl cyclopentadiene is 2%, kautschin is 50%, dicyclopentadiene is that 35%, two rings, penta vinyl closes that iron is 0.07%, pentane is 43.9%.
4. the compound method of the described environment protection type energy-saving welding-cutting liquid (industrial gas) of claim 1, it is characterized in that: earlier 2-methoxy propane, methyl cyclopentadiene, two rings, penta vinyl are closed iron and kautschin etc. and add simultaneously in the low-temp low-pressure rectifying tower, in ℃ scope of low temperature-2～-5, rectification process half an hour under 0.02～0.05MP low pressure, obtain mixing liquid, same then pentane, dicyclopentadiene are put into together and are mixed steel basin, mix, be mixed into the liquid industrial combustion gas in 0.5～0.8% adding liquefied petroleum gas (LPG) by weight percentage at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117255 CN1382779A (en) | 2002-04-22 | 2002-04-22 | Environment protection type energy-saving welding-cutting liquid (industrial gas) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02117255 CN1382779A (en) | 2002-04-22 | 2002-04-22 | Environment protection type energy-saving welding-cutting liquid (industrial gas) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1382779A true CN1382779A (en) | 2002-12-04 |
Family
ID=4744367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02117255 Pending CN1382779A (en) | 2002-04-22 | 2002-04-22 | Environment protection type energy-saving welding-cutting liquid (industrial gas) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1382779A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102449125A (en) * | 2009-04-09 | 2012-05-09 | 国际壳牌研究有限公司 | Fuel composition and its use |
| CN115346430A (en) * | 2022-08-01 | 2022-11-15 | 东越厨电(苏州)股份有限公司 | Gas experiment configurator |
-
2002
- 2002-04-22 CN CN 02117255 patent/CN1382779A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102449125A (en) * | 2009-04-09 | 2012-05-09 | 国际壳牌研究有限公司 | Fuel composition and its use |
| CN102449125B (en) * | 2009-04-09 | 2014-08-20 | 国际壳牌研究有限公司 | Fuel composition and its use |
| CN115346430A (en) * | 2022-08-01 | 2022-11-15 | 东越厨电(苏州)股份有限公司 | Gas experiment configurator |
| CN115346430B (en) * | 2022-08-01 | 2023-09-26 | 东越厨电(苏州)股份有限公司 | Gas experiment configurator |
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