SF6 comprehensive analyzer-based multi-gas detection chamber and detection method thereof

A comprehensive analysis, multi-gas technology, applied in the direction of material thermal conductivity, material impedance, material electrochemical variables, etc., can solve the problems of difficult to ensure the same detection conditions, low detection efficiency, large detection error, etc., to reduce equipment purchases The effect of improving cost, detection efficiency and detection accuracy

Active Publication Date: 2016-08-31
ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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  • Abstract
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  • Application Information

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Problems solved by technology

[0002] Existing SF 6 Comprehensive analyzer for multi-gas (such as SO 2 、H 2 S, CO, SF 6 and moisture) detection, the gas content is detected by entering the gas into their own independent gas chambers. The structure is complex, the cost is high, the detection efficiency is low, and the detection conditions are difficult to ensure the same, and the detection error is relatively large. low precision

Method used

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  • SF6 comprehensive analyzer-based multi-gas detection chamber and detection method thereof
  • SF6 comprehensive analyzer-based multi-gas detection chamber and detection method thereof
  • SF6 comprehensive analyzer-based multi-gas detection chamber and detection method thereof

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Experimental program
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Effect test

Embodiment 1

[0029] Embodiment 1: as Figure 1-Figure 5 As shown, a SF-based 6 The multi-gas detection gas chamber of the comprehensive analyzer includes a gas chamber body 1, and the gas chamber body 1 is provided with a first channel 2 for detection of decomposition products, SF 6 The second path 3 for purity detection and the third path 4 for moisture content detection, the first path 2 is connected with the first flow regulating valve 5, the hydrogen electrochemical sensor 6, the first flow meter 7, the first SO 2 Electrochemical sensor 8, the first H 2 The S electrochemical sensor 10 and the first CO electrochemical sensor 12, in order to improve the detection accuracy of the decomposition products, the outlet of the first flowmeter 7 is connected in parallel with two-range decomposition product detection paths through two solenoid valves 14, that is, the large-range decomposition product detection path and the small-range decomposition product detection path, and the large-range de...

Embodiment 2

[0047] Embodiment 2: a kind of based on SF 6 The detection method of the multi-gas detection gas chamber of the comprehensive analyzer, the method includes the following contents:

[0048] (1) Decomposition product detection: the gas to be detected enters the first channel 2 through the inlet, and the solenoid valve 14 of the large-scale decomposition product detection channel of 0-1000μL / L is opened, and the flow rate is adjusted by adjusting the first flow regulating valve 5 to When the first flow meter 7 shows 150 mL / L, the adjustment is stopped, and the gas passes through the hydrogen electrochemical sensor 6, the second SO 2 Electrochemical sensor 9, second H 2 The S electrochemical sensor 11 and the second CO electrochemical sensor 13 predict the decomposition product. If the decomposition product is less than 100 μL / L, close the solenoid valve 14 of the large-range decomposition product detection path, and open the small-range decomposition product detection path. The ...

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Abstract

The invention discloses an SF6 comprehensive analyzer-based multi-gas detection chamber and a detection method thereof. The SF6 comprehensive analyzer-based multi-gas detection chamber comprises a gas chamber body, wherein a first passage for detecting a decomposition product, a second passage for detecting the SF6 purity and a third passage for detecting the moisture content are arranged on the gas chamber body; the first passage is sequentially connected with a first flow control valve, a hydrogen electrochemical sensor, a first flow meter, a first SO2 electrochemical sensor, a first H2S electrochemical sensor and a first CO electrochemical sensor; the second passage is sequentially connected with a second flow control valve, an SF6 sensor and a second flow meter; the third channel is sequentially connected with a third flow control rate, an H2O sensor and a third flow meter; inlets of the first flow control valve, the second flow control valve and a third flow control valve are connected in parallel. By the SF6 comprehensive analyzer-based multi-gas detection chamber, the detection efficiency is greatly improved; the detection error is reduced; the detection accuracy is greatly improved; the detected data are relatively reliable; the three passages are integrally arranged, so that the integration level of equipment is greatly improved; the occupied space of the equipment is saved; the structure is relatively compact.

Description

technical field [0001] The invention relates to a SF-based 6 The multi-gas detection gas chamber of the comprehensive analyzer and its detection method belong to SF 6 Comprehensive analyzer technology field. Background technique [0002] Existing SF 6 Comprehensive analyzer for multi-gas (such as SO 2 、H 2 S, CO, SF 6 and moisture) detection, the gas content is detected by entering the gas into their own independent gas chambers. The structure is complex, the cost is high, the detection efficiency is low, and the detection conditions are difficult to ensure the same, and the detection error is relatively large. The precision is lower. Contents of the invention [0003] The technical problem to be solved by the present invention is: to provide a 6 The multi-gas detection gas chamber and its detection method of the comprehensive analyzer can realize multi-gas integrated detection, the detection working conditions are the same, the detection is more accurate, it can be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26G01N27/02G01N25/18
CPCG01N25/18G01N27/02G01N27/26
Inventor 张英余鹏程李军卫牧灏蒋震
Owner ELECTRIC POWER SCI RES INST OF GUIZHOU POWER GRID CO LTD
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