High-precision natural gas cutting gas

A natural gas, high-precision technology, applied in the field of metal welding and cutting gas, can solve problems such as heat imbalance, cutting speed reduction, large consumption of gas and oxygen, etc., to achieve enhanced chemical reaction speed, reduced gas cost, and good cutting performance Effect

Inactive Publication Date: 2011-03-16
CHONGQING HENGSHENG ENERGY DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition of liquefied petroleum gas is complex, the flame is not concentrated during combustion, the heat is not balanced, the flame temperature is low, the cutting preheating time is correspondingly increased, the cutting speed is reduced, the consumption of gas and oxygen is large, and there is a large amount of residual liquid during use. restrict its development
[0005] With the completion of the national west-to-east gas pipeline project, natural gas has been applied in more cities. In the field of industrial gas, natural gas has a low boiling point (-157°C), is not affected by ambient temperature, and has no gasification problem. However, the calorific value is low, and the flame temperature in oxygen is only 2538°C, which cannot meet the needs of metal cutting

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The first step: the preparation of catalytic aids, take 50ml of 150# solvent oil, 28 ml of absolute ethanol, 32ml of isopropanol, 28ml of xylene, 36ml of rosin water and 3ml of captocin, and mix them evenly to obtain the catalytic aids.

[0021] Step 2: According to the ratio of adding 10-12ml of catalytic aid per cubic natural gas, fill the above catalytic aid into the steel cylinder with a pressure test pump, and then fill the steel cylinder with natural gas. After filling, it will become high-precision natural gas Cutting gas, used with compressed natural gas pressure regulator.

Embodiment 2

[0023] The first step: the preparation of catalytic aids, take 56ml of 150#, 36 ml of methanol, 40ml of n-butanol, 32ml of xylene, 44ml of rosin water and 4ml of cattosine, and mix them evenly to obtain the catalytic aids.

[0024] Step 2: According to the ratio of adding 10-12ml of catalytic aid per cubic natural gas, fill the above catalytic aid into the steel cylinder with a pressure test pump, and then fill the steel cylinder with natural gas. After filling, it will become high-precision natural gas Cutting gas, used with compressed natural gas pressure regulator.

Embodiment 3

[0026] The first step: the preparation of catalytic aids, take 52ml of 90# solvent oil, 30ml of methanol, 36ml of n-butanol, 30ml of xylene, 40ml of rosin water and 1.8ml of cattosine, and mix them evenly to obtain the catalytic aids.

[0027] Step 2: According to the ratio of adding 10-12ml of catalytic aid per cubic natural gas, fill the above catalytic aid into the steel cylinder with a pressure test pump, and then fill the steel cylinder with natural gas. After filling, it will become high-precision natural gas Cutting gas, used with compressed natural gas pressure regulator.

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Abstract

The invention discloses a high-precision natural gas cutting gas. Natural gas is taken as a major ingredient. Catalysis assistant is added into the natural gas and is composed of the following components at volume ratio: 25-28% of solvent oil, 14-18% of anhydrous ethanol or carbinol, 16-20% of isopropanol or n-butyl alcohol, 14-16% of dimethylbenzene, 18-22% of rosin water and 1.5-2% of Catoc-ene; the ratio of the natural gas to the catalysis assistant is characterized is that 10-12 ml of the catalysis assistant is added in each cube of natural gas.

Description

[0001] technical field [0002] The invention relates to a metal welding and cutting gas, in particular to a high-precision natural gas cutting gas. Background technique [0003] At present, due to the high temperature of the acetylene flame, the thermal processing effect is remarkable, so 70% of the industrial cutting gas consumption in my country is acetylene gas. In the past, acetylene gas was mainly produced in acetylene generators. Because this method is not only highly unsafe, but also pollutes the environment, it has been issued in various places to prohibit its use. Currently, bottled acetylene gas is used for industrial cutting. Acetylene is chemically active, explosive, and extremely dangerous. When it mixes with copper, silver and other metals, air, and pure oxygen, it will cause an explosion even when the diameter of the container is large. When using acetylene gas to cut carbon steel, it is easy to cause melting of the upper edge of the incision, a lot of dross...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/06C10L3/00B23K7/00
Inventor 李伟
Owner CHONGQING HENGSHENG ENERGY DEV
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