SF6 (Sulfur Hexafluoride) micro-water content transducer calibration device

A micro-moisture content calibration device technology, applied in the direction of material moisture content, etc., can solve the problems of low accuracy, slow calibration speed, and complicated operation of the calibration device, and achieve uniform micro-moisture content, high accuracy, and high degree of automation Effect

Inactive Publication Date: 2012-06-20
SHENYANG ACAD OF INSTR SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Using this method to calibrate the SF 6 micro-water content transmitter can only calibrate the SF 6 micro-water content transmitter under normal pressure, and cannot achieve SF 6 The pressure calibration of the water content transmitter, and in the actual application of

Method used

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  • SF6 (Sulfur Hexafluoride) micro-water content transducer calibration device
  • SF6 (Sulfur Hexafluoride) micro-water content transducer calibration device
  • SF6 (Sulfur Hexafluoride) micro-water content transducer calibration device

Examples

Experimental program
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Embodiment Construction

[0033] As shown, SF 6 Micro water content transmitter calibration device, it includes SF 6 Moisture content transmitter, container 2, micro air pump 4, high-precision dew point sensor 5, inner connecting pipe 8, outer connecting pipe 22, first one-way check valve 9, second one-way check valve 10, third One-way check valve 11, fifth one-way check valve 13, high-precision pressure transmitter 24, high-precision temperature transmitter 25, first solenoid valve 26, third solenoid valve 28, vacuum pump 29, high-purity nitrogen Bottle 31, programmable controller 32 and computer 42.

[0034] The micro air pump 4 and the high-precision dew point sensor 5 are placed in the container 2; the detection ports of the high-precision pressure transmitter 24 and the high-precision temperature transmitter 25 communicate with the inner cavity of the container 2 respectively.

[0035] The second one-way check valve 10 , the third one-way check valve 11 and the fifth one-way check ...

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Abstract

The invention belongs to the field of detectors, and in particular relates to an SF6 (Sulfur Hexafluoride) micro-water content transducer calibration device. The SF6 micro-water content transducer calibration device comprises a container (2), an air micro-pump (4), a high-precision dew point sensor (5), an inner connection pipe (8), an outer connection pipe (22), a first one-way check valve (9), a second one-way check valve (10), a third one-way check valve (11), a fifth one-way check valve (13), a high-precision pressure transducer (24), a high-precision temperature transducer (25), a first electromagnetic valve (26), a third electromagnetic valve (28), a vacuum pump (29), a high-purity nitrogen container (31), a programmable controller (32) and a computer (42), wherein the air micro-pump (4) and the high-precision dew point sensor (5) are arranged in the container (2), and detection ports of the high-precision pressure transducer (24) and the high-precision temperature transducer (25) are respectively communicated with the container (2). The SF6 micro-water content transducer calibration device disclosed by the invention has the advantages of high accuracy, convenience for operation and fast calibration speed.

Description

technical field [0001] The invention belongs to the field of detection devices, in particular to a SF 6 Micro water content transmitter calibration device. Background technique [0002] High-voltage switch is one of the important equipment in power plants and substations. In order to safely and reliably send power to the national grid, it is necessary to ensure that high-voltage switches and other equipment work normally and reliably. In the high-voltage switch GIS equipment, the trace moisture content of SF6 shielding gas plays an important role in the performance of the high-voltage switch and the normal operation of the equipment. The main manifestations are: the insulation performance of the switch caused by excessive moisture content decreases, resulting in high-voltage breakdown; due to the decline in insulation capacity, partial discharge occurs near the electrodes at both ends, which leads to penetrating flashover after a long time; directly affects the breaking ...

Claims

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Application Information

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IPC IPC(8): G01N25/66
Inventor 何方徐洪李振波申安安袁峰金东义马超
Owner SHENYANG ACAD OF INSTR SCI
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