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Detection system of sulfur hexafluoride leakage alarm device

A leak alarm, sulfur hexafluoride technology, applied in the direction of measuring the acceleration and deceleration rate of fluid, using liquid/vacuum for liquid tightness measurement, etc., can solve problems such as poor monitoring data accuracy, reduce emissions, and ensure accurate performance, simple and reliable use

Active Publication Date: 2020-07-31
STATE GRID HUNAN ELECTRIC POWER +2
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AI Technical Summary

Problems solved by technology

[0004] The invention provides a detection system for a sulfur hexafluoride leakage alarm device to solve the problem that the accuracy of the monitoring data is poor due to the lack of on-site detection of the installed SF6 leakage alarm device in the prior art

Method used

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  • Detection system of sulfur hexafluoride leakage alarm device

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Embodiment Construction

[0027] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as figure 1 As shown, this embodiment provides a detection system for a sulfur hexafluoride leakage alarm device, including a standard gas dilution device, a detection device 30 and a tail gas recovery device 32 connected in sequence;

[0029] The standard gas dilution device is used for SF 6 standard gas and / or O 2 After the standard gas is diluted to a preset concentration, it is passed into the detection device 30;

[0030] The detection device 30 is a hollow semi-elliptical structure, which is used to cover the probe 31 of the sulfur hexafluoride leakage alarm device and ensure that its lower part sticks to the ground;

[0031] The tail gas recovery device 32 is used to recover the tail gas flowing out from the detection device 30 .

[0032] Dilute SF through a standard gas dilution device 6 standard gas and / or O 2 Pass ...

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Abstract

The invention discloses a detection system of a sulfur hexafluoride leakage alarm device. The detection system comprises a standard gas dilution device, a detection device and a tail gas recovery device which are connected in sequence, wherein the standard gas dilution device is used for diluting SF6 standard gas and / or O2 standard gas to a preset concentration and then introducing the SF6 standard gas and / or O2 standard gas into the detection device; the detection device is of a hollow semi-elliptical structure and is used for covering a probe of the sulfur hexafluoride leakage alarm device and ensuring that the lower part of the probe is attached to the ground; and the tail gas recovery device is used for recovering the tail gas flowing out of the detection device. The standard gas dilution device is used for diluting and uniformly mixing standard gas and then introducing the standard gas into the detection device, the detection device is used for covering a probe of the detected SF6leakage alarm device, and a hollow semi-elliptical structure is adopted, so that the mixed gas fully flows in the detection device, and the stability of the concentration of the gas in the detectiondevice is guaranteed; the tail gas recovery device reduces the emission of SF6; the using method is simple and reliable, the operability is high, and the accuracy of monitoring data of the SF6 leakagealarm device can be ensured.

Description

technical field [0001] The invention relates to the field of operation and maintenance of electrical equipment, in particular to a detection system for a sulfur hexafluoride leakage alarm device. Background technique [0002] GIS equipment is widely used in power systems because of its advantages such as small footprint, long maintenance cycle, and no pollution, rain, salt fog and other surrounding environmental factors. The insulating gas sulfur hexafluoride (SF6) used in GIS equipment has excellent insulation performance, arc extinguishing performance and thermal conductivity. However, SF6 is an inert gas. When SF6 gas is mixed in the air, it will cause suffocation of operation and maintenance personnel, and in severe cases, it will cause personal injury and death. SF6 is a strong greenhouse gas, and its greenhouse effect is 23,000 times that of CO2. Therefore, the standard GB 26860-2011 "Electricity Safety Work Regulations. Electrical Parts of Power Plants and Substation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
CPCG01M3/26
Inventor 龚尚昆胡旭魏加强万涛吴俊杰徐松周舟刘奕奕常燕王笑刘政
Owner STATE GRID HUNAN ELECTRIC POWER
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