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Method for heating, cutting and welding metal by using ethylene as fuel

A kind of ethylene and metal technology, applied in the fields of metal heating, cutting and welding, can solve the problems of residual liquid, inconvenient operation, lack of safety, etc., achieve good social and economic benefits, avoid insufficient power resources, and eliminate winter The effect of raffinate

Inactive Publication Date: 2010-08-04
王明华 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the 1990s, propane gas with additives and no additives appeared successively in my country. However, due to its shortcomings such as low flame temperature, slow preheating, large oxygen consumption, and inability to realize steel-to-steel welding, it is mainly used for gas cutting, and most of them are for mechanical cutting
The efficiency of manual cutting is low, and most of them are not used
Its tools cannot be used in common with acetylene gas as fuel tools, that is, propane cutting nozzles cannot be used instead of acetylene gas, which is very inconvenient in actual operation
In addition, the propane cutting nozzle is porous, which increases the consumption of gas and oxygen; propane is often used as a fuel from different sources, the purity cannot be guaranteed, and there will be residual liquid when used in winter
[0005] In order to solve the problems of high energy consumption, heavy pollution, lack of safety of acetylene gas, high gas consumption, high oxygen consumption, narrow use area and residual liquid of propane gas, it is necessary to invent a new type of industrial gas for metal heating , cutting and welding processes to overcome the defects of the prior art

Method used

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  • Method for heating, cutting and welding metal by using ethylene as fuel
  • Method for heating, cutting and welding metal by using ethylene as fuel
  • Method for heating, cutting and welding metal by using ethylene as fuel

Examples

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Embodiment 1

[0024] Embodiment 1: a kind of method that uses ethylene as fuel to carry out metal heating, cutting and welding, comprises the steps:

[0025] A. First, pressurize the liquid ethylene in the ethylene storage tank through a cryogenic liquid pump, then heat it up to 0°C through an air-temperature heater, and then fill it in a steel cylinder through a filling line to obtain bottled ethylene; the low temperature used in this example The liquid pump is a low temperature liquid reciprocating pump (model is BP0100-600 / 165), and the air temperature heater is an air temperature high pressure heater (model is YQK50 / 150).

[0026] see figure 1 with figure 2 , in this embodiment, the liquid ethylene in the ethylene storage tank has a pressure of about 0.2Mpa and a temperature of about -90°C; the pressure is raised by a low-temperature liquid reciprocating pump, and the temperature is raised to about 0°C by an air-temperature high-pressure heater. Then go through the filling line for c...

Embodiment 2

[0028] Embodiment 2: a kind of method that uses ethylene as fuel to carry out metal heating, cutting and welding, comprises the steps:

[0029] A. First, pressurize the liquid ethylene in the ethylene storage tank through a cryogenic liquid pump, then heat it up to 0°C through an air-temperature heater, and then fill it in a steel cylinder through a filling line to obtain bottled ethylene; the low temperature used in this example The liquid pump is a low temperature liquid reciprocating pump (model is BP0100-600 / 165), and the air temperature heater is an air temperature high pressure heater (model is YQK50 / 150).

[0030] In this embodiment, the liquid ethylene in the ethylene storage tank has a pressure of about 0.2Mpa and a temperature of about -90°C; the pressure is raised by a low-temperature liquid reciprocating pump, and the temperature is raised to about 0°C by an air-temperature high-pressure heater, and then Bottled ethylene is obtained by filling steel cylinders throu...

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Abstract

The invention relates to a method for heating, cutting and welding a metal by using ethylene as fuel. The method comprises the following steps: A. increasing the pressure of liquid ethylene in an ethylene storage tank through a low-temperature liquid pump, then increasing the temperature to 0 DEG C through an air temperature type heater, and then carrying out steel bottle bottling through a filling line to obtain bottled ethylene; and B. respectively connecting an oxygen gas inlet and an ethylene gas inlet of a fuel gas handle with the outlets of an oxygen gas steel bottle and an ethylene steel bottle through pipelines. The invention saves more energy, reduces pollution, conforms to environmental requirements and improves the safety; the invention has easily realized technical scheme and lower production cost, generates a positive upgrading action for the prior art after being put on the market, relieves the problem of industrial gas resource shortage and conforms to the development trend of energy sources.

Description

technical field [0001] The invention relates to a method for using industrial gas for metal heating, cutting and welding, in particular to a method for using ethylene as fuel for metal heating, cutting and welding. Background technique [0002] With the rapid development of my country's modern industry, domestic pillar enterprises and private enterprises are booming, industrial cutting and welding are spread throughout cities and rural areas, and the demand for industrial gas is increasing day by day. As a common common technology, welding and cutting are widely used in manufacturing It is used as a key processing technology by a considerable number of enterprises in the industry, and the quality of welding and cutting directly determines the quality of their products. [0003] Most of the prior art uses acetylene as fuel for metal heating, cutting and welding. In my country, the calcium carbide method is mainly used for the production of acetylene; its main disadvantages ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D14/38
Inventor 王明华赵多山王萌
Owner 王明华