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Sulfur hexafluoride decomposer tester

A technology of sulfur hexafluoride and decomposition products, applied in the direction of material electrochemical variables, sampling devices, etc., can solve the problems of high test gas flow rate, long test time, low test range, etc., and achieve the effect of saving flow

Inactive Publication Date: 2013-09-18
NANJING SHUNTAI TECH
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  • Abstract
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Problems solved by technology

[0004] The traditional sulfur hexafluoride decomposition product tester requires a high test gas flow rate and a long test time; the single-range test has low precision or low test range, and the dual-range sensor is prone to poisoning

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Embodiment Construction

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the specific implementation modes of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the above-mentioned and other purposes, features and advantages of the present invention will be clearer. Like reference numerals designate like parts throughout the drawings. The drawings have not been drawn to scale, emphasis instead being placed upon illustrating the gist of the invention.

[0020] figure 1 It is the system structure diagram of the sulfur hexafluoride decomposition product tester of the specific embodiment of the present invention, as figure 1 As shown, the sulfur hexafluoride decomposition product tester of a specific embodiment of the present invention includes: an air inlet joint 10, a pressure sampling chamber 20, an electromagnetic flow valve 40, an electrochemical samplin...

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Abstract

The invention provides a sulfur hexafluoride decomposer tester. The sulfur hexafluoride decomposer tester comprises a gas inlet joint, a pressure sampling chamber, an electromagnetic flow valve, an electrochemical sampling chamber, a dew point sampling chamber, a flowmeter and a gas outlet joint which are connected in order, and further comprises a gas pump, wherein the pressure sampling chamber is further connected with the gas pump. According to the sulfur hexafluoride decomposer tester provided by the invention, the sampling chamber structure is capable of reducing the test flow to (0.1-0.2)ml / min, the test time is shortened to 30 seconds, the flow is saved, the high range and the low range are automatically switched, the overload gas is automatically evacuated, the precision of the low range is considered while the high range is ensured, and the sensor is prevented from being poisoned.

Description

technical field [0001] The invention relates to the technical field of electronic instruments, in particular to a tester for sulfur hexafluoride decomposition products. Background technique [0002] Sulfur hexafluoride (SF 6 ) is widely used in high-voltage electrical equipment because of its superior insulation and arc-extinguishing medium. With the rapid development of the domestic power industry, since the 1980s, SF 6 Electrical equipment gradually replaces traditional oil-filled electrical equipment, which has achieved good results for the safe, stable and economical operation of the power system. However, due to some defects in the design, manufacture, installation, operation and maintenance of the equipment, which affect the normal operation of the equipment and even cause accidents, the SF was detected in time. 6 Internal defects of electrical equipment are of great significance to ensure the safe operation of equipment and power grids. Early detection of SF 6 ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26G01N1/24
Inventor 张立强张玉钧蔡毅敏
Owner NANJING SHUNTAI TECH
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