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Temperature-change-resistant sample gas constant temperature device and sample gas pretreatment system

A constant temperature device and pretreatment technology, applied in the preparation of test samples, etc., can solve the problems of inaccurate sample gas analysis and affecting the sample gas pretreatment process, and achieve the effect of improving the accuracy of sample gas analysis and reducing the impact

Pending Publication Date: 2022-03-04
沃森能源技术(廊坊)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional sample gas treatment system, the sample gas temperature will change due to external environmental factors, which will affect the sample gas pretreatment process and lead to inaccurate sample gas analysis
Therefore, the existing sample gas processing system needs to be improved urgently

Method used

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  • Temperature-change-resistant sample gas constant temperature device and sample gas pretreatment system
  • Temperature-change-resistant sample gas constant temperature device and sample gas pretreatment system
  • Temperature-change-resistant sample gas constant temperature device and sample gas pretreatment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Please refer to figure 1 The flow diagram of a temperature-resistant sample gas constant temperature device provided in the present application is shown, including: a temperature measurement unit 1, a temperature control unit 2, a heating unit 3 and a cooling unit 4;

[0049] The temperature measurement unit 1 is used to measure the temperature of the filtered sample gas, and transmit the temperature data to the temperature control unit 2;

[0050] The temperature control unit 2 is configured to determine that when the temperature data is lower than a first set temperature value, the temperature control unit 2 sends a first control signal to the heating unit 3;

[0051] Judging that when the temperature data is higher than the second set temperature value, the temperature control unit 2 sends a second control signal to the cooling unit 4;

[0052] The heating unit 3 is configured to start heating up the filtered sample gas when receiving the first control signal;

[0...

Embodiment 2

[0077] Such as figure 2 Shown is the specific flow of a sample gas pretreatment system provided by the present application, including: a sample gas source 6 used in conjunction with a filter unit 7, a temperature-resistant sample gas constant temperature device described in Example 1, and a regulator Unit 8 and Analysis Unit 9;

[0078] Sample gas source 6, used to provide sample gas;

[0079] The filter unit 7 is used to extract the sample gas and filter the sample gas to obtain the filtered sample gas and transmit it to the temperature measurement unit 1; here, the type of the filter unit 7 is, for example, a multi-stage filter;

[0080] The adjustment unit 8 is used to adjust the flow rate of the filtered sample gas after the sample gas thermostat is adjusted to the set temperature;

[0081] Specifically, the regulating unit 8 includes: a pressure regulating module 11, a flow regulating module 10, and a pressure stabilizing module 12 used together;

[0082] The pressure...

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PUM

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Abstract

The invention discloses a temperature-change-resistant sample gas constant temperature device and a sample gas pretreatment system. Comprising a temperature measuring unit, a temperature control unit, a heating unit and a cooling unit, the temperature measuring unit, the temperature control unit, the heating unit and the cooling unit which are used in cooperation are specifically designed, the temperature measuring unit is used for detecting the temperature of the filtered sample gas and transmitting the temperature data to the temperature control unit, the temperature control unit receives the temperature data, and when it is judged that the temperature data is lower than a first set temperature value, the heating unit is started; the temperature control unit sends a first control signal to the heating unit, and the heating unit is started to heat the filtered sample gas; when it is judged that the temperature data is higher than a second set temperature value, the temperature control unit sends a second control signal to the cooling unit, and the cooling unit is started to cool the filtered sample gas; by continuously regulating and controlling the temperature of the filtered sample gas, the temperature of the filtered sample gas gradually tends to be stable and is kept in a set temperature range, so that the influence of external factors on the temperature of the sample gas is reduced, and the analysis accuracy of the sample gas is improved.

Description

technical field [0001] The present disclosure generally relates to the technical field of gas processing, and in particular to a temperature-resistant sample gas constant temperature device and a sample gas pretreatment system. Background technique [0002] In order to protect people's living environment, it is necessary to detect the atmospheric environment and the flue gas emitted by factories, and the gas that needs to be processed and analyzed is called sample gas. In the traditional sample gas treatment system, the temperature of the sample gas will change due to external environmental factors, which will affect the sample gas pretreatment process and lead to inaccurate sample gas analysis. Therefore, the existing sample gas processing system needs to be improved urgently. Contents of the invention [0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a temperature-resistant sample gas constant temperature device a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/44G01N1/28G01N1/34
CPCG01N1/44G01N1/28G01N1/34
Inventor 李东升耿克何振东崔海港韩昊
Owner 沃森能源技术(廊坊)有限公司