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Metal welding and cutting ether-hydrocarbon gas

A technology for welding and cutting gas and hydrocarbons, which is used in gas fuel, petroleum industry, fuel and other directions, and can solve problems such as the use of non-metal welding and cutting gas.

Inactive Publication Date: 2004-01-21
乐清市金佩克新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A Chinese patent once disclosed a "ether hydrocarbon liquid composite fuel" (ZL patent number: 99115710.9, authorized announcement number: CN1084784C), in which dimethyl ether is 20-40%, pentane is 50-70%, and liquefied petroleum gas is 0% -20%, it has the advantages of high calorific value, less pollution, safety and sanitation, and cheap price, but it cannot be used as metal welding and cutting gas

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The additives are prepared according to the following proportions: add 10ml (about 8g) of acetone to 2g of ferrocene, add 20ml (about 14g) of petroleum ether to 10ml (about 9g) of xylene, add 10ml (about 7g) of dimethyl ether to 4ml (about 6g) of hydrogen peroxide Ether, three parts mixed, stirred well, set aside.

[0013] Press 0.1kg of additive into a 5kg steel cylinder, then press 2.5kg of dimethyl ether, 1.5kg of liquefied petroleum gas, and 0.9kg of pentane into the cylinder in sequence. That is, the proportion of each component of the metal welding and cutting gas is 50% of dimethyl ether, 30% of liquefied petroleum gas, 18% of pentane, and 2% of additives.

Embodiment 2

[0015] Press 0.23kg of additives into a 5kg steel cylinder, then press 2.0kg of dimethyl ether, 2.0kg of liquefied petroleum gas, and 0.8kg of pentane into the cylinder in sequence. That is, the proportioning of each component of the metal welding and cutting gas is 40% of dimethyl ether, 40% of liquefied petroleum gas, 15% of pentane, and 5% of additives.

Embodiment 3

[0017] Press 0.06kg of additives into a 5kg steel cylinder, then press 2.9kg of dimethyl ether, 1.2kg of liquefied petroleum gas, and 0.9kg of pentane into the cylinder in sequence. That is, the proportioning of each component of the metal welding and cutting gas is 58% of dimethyl ether, 23% of liquefied petroleum gas, 18% of pentane, and 1% of additives.

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PUM

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Abstract

The ether-hydrocarbon gas for welding and cutting metal consists of dimethyl ether 40-58 wt%, liquefied petroleum gas 23-40 wt%, pentane 15-20 wt% and additive 1-5 wt%. The ether-hydrocarbon gas for welding and cutting metal is compounded by utilizing the physical and chemical properties of dimethyl ether and the features of pentane, and has the features of low cost, less pollution and low toxicity, and may be used in replacing acetylene for welding and cutting metal. Owing to dimethyl ether containing oxygen in 35 %, using the ether-hydrocarbon gas in welding and cutting metal has 20 % lowered oxygen consumption.

Description

1. Technical field [0001] The invention belongs to a gas, in particular to an ether hydrocarbon gas used for metal welding and cutting. 2. Background technology [0002] At present, the gas used for welding and cutting metal materials in my country is mainly acetylene gas. However, acetylene gas consumes a lot of coke and electric energy in the manufacturing process, so the cost of acetylene gas is high and expensive. In addition, acetylene gas is easy to explode when the pressure per square centimeter exceeds 1.5kg, and acetylene as an industrial gas contains a small amount of H 2 S.PH 3 Such impurities are toxic, so acetylene gas also has the problem of poor safety performance. In order to address the shortcomings of acetylene gas, the Chinese patent once disclosed "a hydrocarbon gas for welding and cutting" (application number: 98113440.8, publication number: 1189529A), and C in the component 3 、C 4 Liquefied gas accounts for 93-96%, C 1 、C 2 、C 3 Alkanes account ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/00
Inventor 胡金贤胡公华潘顺林胡星旺胡定忠
Owner 乐清市金佩克新能源有限公司
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