CN1206329C - Metal welding and cutting ether-hydrocarbon gas - Google Patents
Metal welding and cutting ether-hydrocarbon gas Download PDFInfo
- Publication number
- CN1206329C CN1206329C CN 03142859 CN03142859A CN1206329C CN 1206329 C CN1206329 C CN 1206329C CN 03142859 CN03142859 CN 03142859 CN 03142859 A CN03142859 A CN 03142859A CN 1206329 C CN1206329 C CN 1206329C
- Authority
- CN
- China
- Prior art keywords
- gas
- welding
- ether
- pentane
- cutting
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
Links
Landscapes
- Liquid Carbonaceous Fuels (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention belongs to fuel gas, particularly to ether hydrocarbon fuel gas used for welding and cutting metal. The ether hydrocarbon gas used for welding and cutting metal is prepared from dimethyl ether, liquefied petroleum gas, pentane and an additive agent. The ether hydrocarbon gas contains the following ingredients according to the percentage: 40 to 58% of dimethyl ether, 23 to 40% of liquefied petroleum gas, 15 to 20% of pentane and 1 to 5% of additive agent. The present invention is gas for welding and cutting metal, which is prepared by mainly utilizing the physicochemical property of the dimethyl ether and the characteristic of the pentane. The present invention has the advantages of low cost, little pollution, low toxicity, safety and sanitation. The present invention can totally replace acetylene gas to be used for welding and cutting metal material. Because the dimethyl ether contains 35% of oxygen, the oxygen supply during the welding and cutting operation can be reduced. Compared with the oxygen consumption of acetylene gas, the oxygen consumption is reduced by about 20%.
Description
One, technical field
The invention belongs to a kind of combustion gas, refer in particular to a kind of ether hydrocarbon fuel gas that is used for metal welding.
Two, background technology
The combustion gas that present China is used for the processing of metallic substance welding mainly is an acetylene gas.And acetylene gas needs to consume a large amount of coke and electric energy in manufacturing processed, so cost height, the price of acetylene gas are expensive.In addition, the every cm2 pressure of acetylene gas explodes when surpassing 1.5kg easily, and contains a spot of H in the acetylene as industrial combustion gas
2S, PH
3Deng impurity, have toxicity, so also there is the problem of poor safety performance in acetylene gas.For the deficiency that exists at acetylene gas, Chinese patent once disclosed " a kind of hydrocarbon fuel gas that is used for welding " (application number: 98113440.8, publication number: 1189529A), C in the component
3, C
4Liquefied gas accounts for 93～96%, C
1, C
2, C
3Alkane account for 3～6%, additive accounts for 0.1～1%, and it has following advantage: (1) price is lower than acetylene, and (2) safety performance is better than acetylene, (3) add additive in the combustion gas and can improve flame temperature in the gas cutting and gas welding, but also had big, low-consuming characteristics of welding thickness.
Stride into after the new millennium, dme (DME) is more and more paid attention to by people as novel clean fuel.Dme is colourless, odorless gas under normal temperature, normal pressure, owing to himself contain oxygen, component is single, therefore have good burning performance thermo-efficiency height, noresidue in the combustion processes, no black smoke, become universally acknowledged clear energy sources, as the ideal substitute of liquefied petroleum gas (LPG) and diesel oil.Chinese patent once disclosed a kind of " ether-hydrocarbon liquid compound fuel " (ZL patent No.: 99115710.9, Granted publication number: CN1084784C), dme 20-40% in the component, pentane 50-70%, oil liquefied gas 0-20%, advantages such as it has the calorific value height, it is little to pollute, safety and sanitation, low price, but it can not use as metal welding/cutting gas.
Three, summary of the invention
The purpose of this invention is to provide a kind of ether hydro carbons metal welding/cutting gas, replace ethine gas is used for the processing of metallic substance welding.
The technical scheme that realizes above-mentioned purpose is as follows: a kind of ether hydro carbons metal welding/cutting gas, it is made up of dme, oil liquefied gas, pentane, additive, and the contained per-cent of each component is: dme 40-58%, oil liquefied gas 23-40%, pentane 15-20%, additive 1-5%.
This metal welding/cutting gas process for preparation is as follows: earlier additive is prepared, be pressed into steel cylinder after stirring, be pressed into dme, oil liquefied gas, pentane successively to steel cylinder again.
The present invention is mainly according to the physico-chemical property of dme and the characteristic of pentane, and formulated metal welding/cutting gas makes it to have that cost is low, pollution is little, toxicity is low, safety, health, can be used for the processing of metallic substance welding by replace ethine gas fully.And because dme self contains 35% oxygen, so the oxygen feed rate just can reduce in the welding processing, than using the acetylene gas oxygen-consumption to reduce about 20%.
The physical properties of dme is similar to oil liquefied gas, its boiling point-25.1 ℃, fluid density 0.67gcm
-3(20 ℃), liquid viscosity 0.12～0.15kgms
-1, saturated vapor pressure 0.6MPa (25 ℃), vaporization heat 467kJkg
-1, gas density 1.59 (to air), theoretical air than 9.0 (kg: kg), maximum combustion speed 50cms
-1, explosive range 3.4～17%, 235 ℃ of flashing temperatures, cetane value 55～60, lower heating value 59.3MJ (Nm
3)
-1, lower calorific value 28.8MJkg
-1, therefore alternative oil liquefied gas, diesel motor fuel also can be used as fuel such as fuel cell, fuel-burning power plant, produce low-carbon alkene by decomposition, and alternative cfc is made aerosol, refrigeration agent and whipping agent.
Light-hydrocarbon fuel (pentane) as domestic fuel be by having been it is believed that a kind of cost is low, pollution-free, health, safety, the easy gasification ideal fuels of lighting.Among the present invention, pentane uses the I C of China Ministry of Agriculture standard code
5I C
5Calorific value is higher, grasps in the 15-20% scope according to the environment for use temperature during preparation.
The purpose that adds additive is the flame temperature that improves in the gas welding gas cutting, but therefore also has big, the low-consuming characteristics of welding thickness, approaches acetylene gas on use properties.Additive is made up of ferrocene, acetone, dimethylbenzene, sherwood oil, hydrogen peroxide, dme.
Four, embodiment
Embodiment one:
Additive is prepared in following ratio: the 2g ferrocene adds 10ml (about 8g) acetone, and 10ml (about 9g) dimethylbenzene adds 20ml (about 14g) sherwood oil, and 4ml (about 6g) hydrogen peroxide adds 10ml (about 7g) dme, and three is partially mixed, stirs, stand-by.
The 0.1kg additive is pressed into 5kg dress steel cylinder, is pressed into 2.5kg dme, 1.5kg oil liquefied gas, 0.9kg pentane successively to steel cylinder again.Promptly the proportioning of this metal welding/cutting gas each component is a dme 50%, oil liquefied gas 30%, pentane 18%, additive 2%.
Embodiment two:
The 0.23kg additive is pressed into 5kg dress steel cylinder, is pressed into 2.0kg dme, 2.0kg oil liquefied gas, 0.8kg pentane successively to steel cylinder again.Promptly the proportioning of this metal welding/cutting gas each component is a dme 40%, oil liquefied gas 40%, pentane 15%, additive 5%.
Embodiment three:
The 0.06kg additive is pressed into 5kg dress steel cylinder, is pressed into 2.9kg dme, 1.2kg oil liquefied gas, 0.9kg pentane successively to steel cylinder again.Promptly the proportioning of this metal welding/cutting gas each component is a dme 58%, oil liquefied gas 23%, pentane 18%, additive 1%.
Claims (1)
1, a kind of ether hydro carbons metal welding/cutting gas, it is characterized in that: it is made up of dme, oil liquefied gas, pentane, additive, and the contained per-cent of each component is: dme 40-58%, oil liquefied gas 23-40%, pentane 15-20%, additive 1-5%; Described additive is made up of ferrocene, acetone, dimethylbenzene, sherwood oil, hydrogen peroxide, dme; The component proportioning of described additive is: ferrocene 2g, acetone 10ml, dimethylbenzene 10ml, sherwood oil 20ml, hydrogen peroxide 4ml, dme 10ml.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03142859 CN1206329C (en) | 2003-06-15 | 2003-06-15 | Metal welding and cutting ether-hydrocarbon gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03142859 CN1206329C (en) | 2003-06-15 | 2003-06-15 | Metal welding and cutting ether-hydrocarbon gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1468942A CN1468942A (en) | 2004-01-21 |
| CN1206329C true CN1206329C (en) | 2005-06-15 |
Family
ID=34155721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03142859 Expired - Fee Related CN1206329C (en) | 2003-06-15 | 2003-06-15 | Metal welding and cutting ether-hydrocarbon gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1206329C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1302093C (en) * | 2005-03-03 | 2007-02-28 | 郑长同 | Industrial fuel gas for metal cutting and welding |
| CN100392051C (en) * | 2005-07-05 | 2008-06-04 | 泸天化（集团）有限责任公司 | Energy-saving environmental protection type dimethylether industrial cutting gas |
| CN103060034B (en) * | 2012-12-25 | 2015-07-08 | 克得生 | Hybrid welding gas |
-
2003
- 2003-06-15 CN CN 03142859 patent/CN1206329C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1468942A (en) | 2004-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1861763A (en) | Water-soluble ol group liquid fuel | |
| CN101649227A (en) | Alcohol-group liquid fuel containing catalytic heat value agent | |
| CN102585933A (en) | Gasoline additive | |
| CN1206329C (en) | Metal welding and cutting ether-hydrocarbon gas | |
| CN101962581A (en) | Method for preparing environment-friendly gasified oil and product | |
| CN113862049A (en) | Safe and environment-friendly water-based fuel and preparation method thereof | |
| CN102373101B (en) | High-cleaning aged fuel | |
| CN101565645B (en) | Polymeric biological liquid fuel and preparation method thereof | |
| CN112940807A (en) | Energy-saving environment-friendly alcohol-free vegetable oil fuel and preparation method thereof | |
| CN101935563A (en) | Heavy diesel energy-saving agent | |
| CN100436571C (en) | Formula of multifunction fuel and its production process | |
| CN102851089A (en) | Methane gas catalytic combustion agent | |
| CN101941110A (en) | Process method for cutting metals by using flames of oxygen biodiesel oil and diesel oil blended fuel | |
| CN108018095B (en) | Novel desulfurizer suitable for light hydrocarbon fuel | |
| CN104877722A (en) | Natural gas metal cutting gas | |
| CN1740279A (en) | Mathanol regenerating liquid fuel | |
| JPH027353B2 (en) | ||
| CN101870890A (en) | Nano alcohol ether gasoline | |
| CN109694762A (en) | A kind of ether hydro carbons welding gas | |
| CN1492028A (en) | General composite dimethyl ether liquified gas for stove cylinder | |
| CN1084784C (en) | Ether-hydrocarbon liquid compound fuel | |
| CN109321294A (en) | A kind of industry air mixture | |
| CN108546574A (en) | Biological alcohol-based fuel power heat value agent | |
| CN102634387A (en) | Modified methanol automotive fuel | |
| CN1242030C (en) | Composite fuel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050615 |