Gas online detection device in protective gas heat treatment furnace

A technology of heat treatment furnace and protective gas, which is applied to measuring devices, furnace control devices, furnaces, etc., can solve the problems of increasing gas consumption and affecting the brightness of workpieces, and achieve the effect of improving production safety and improving the processing quality of pipe fittings.

Inactive Publication Date: 2011-06-01
SUZHOU ZHONGMENZI TECH
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  • Abstract
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Problems solved by technology

In addition, the atmosphere in the furnace may be polluted at any time, which will affect the brightness of the workpiece and increase the gas consumption

Method used

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  • Gas online detection device in protective gas heat treatment furnace
  • Gas online detection device in protective gas heat treatment furnace
  • Gas online detection device in protective gas heat treatment furnace

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with specific embodiments and drawings, but the present invention is not limited to this embodiment.

[0020] Such as figure 1 and 2 As shown, according to the working principle of the gas on-line detection device in the shielding gas heat treatment furnace of this embodiment, from the first sampling port 1 located in the preheating passage area of ​​the shielding gas heat treatment furnace, to the heating chamber area of ​​the shielding gas heat treatment furnace Sample gas is collected in the second sampling port 2, the third sampling port 3 located in the spray cooling zone, and the fourth sampling port 4 located in the cooling channel area of ​​the protective gas heat treatment furnace. After mixing, the sample gas is cooled by a condenser and filtered by a filter , under the action of the air pump, respectively enter the water analyzer (CI2000-DP), oxygen analyzer (CI2000-DH) and hydrogen analyze...

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Abstract

The invention discloses a gas online detection device in a protective gas heat treatment furnace, comprising a sampling port, a gas analysis and control part, an alarm device, a nitrogen gas supply device, a hydrogen gas supply device and a flow control device, wherein the sampling port comprises a first sampling port positioned at a preheat channel area, a second sampling port positioned at a heating chamber area, a third sampling port positioned at a jet flow cooling area and a fourth sampling port positioned at a cooling channel area; the gas analysis and control part comprises a hydrogen gas analyzer, an oxygen gas analyzer for analyzing oxygen gas content, a water analyzer for analyzing water content and a control unit; the control unit acquires analysis data of the hydrogen gas analyzer, the oxygen gas analyzer and the water analyzer and compares the data with preset values; and the nitrogen gas supply device and the hydrogen gas supply device are controlled by the control unit. The gas online detection device disclosed by the invention has a plurality of sampling points, meanwhile, online detection and analysis are carried out on multiple elements, corresponding measures are made according to a corresponding analysis result to ensure high stability of the protective gas in the furnace, and the production safety and the processing quality of workpieces are improved.

Description

technical field [0001] The invention relates to an on-line gas detection device in a heat treatment furnace for protective gas. Background technique [0002] During the operation of the protective gas heat treatment furnace, attention should be paid to the safety of the gas circuit, circuit and water system, especially to prevent air leakage, so as not to cause high-temperature hydrogen and oxygen mixed spontaneous combustion explosion accidents. In addition, the atmosphere in the furnace may be polluted at any time, which will affect the brightness of the workpiece and increase the gas consumption. How to implement reliable online detection, analysis and control of the protective gas (oxygen, water, hydrogen and other components) in the furnace is very important. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an online detection device dedicated to the gas in the protective gas heat treatment furnace, which ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D7/06F27D19/00G01N33/00
Inventor 蒋栋翔徐芳张志伟
Owner SUZHOU ZHONGMENZI TECH
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