Universal portable calibration apparatus for on-line monitor used for gas dissolved in oil
A technology of dissolving gas in oil and calibrating device, applied in measuring devices, instruments, scientific instruments, etc., can solve problems such as overflow, affecting the accuracy of calibration work, attenuation, etc., and achieve the effect of avoiding waste
Active Publication Date: 2016-09-07
STATE GRID CORP OF CHINA +3
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Problems solved by technology
However, on the way from the laboratory to the site, various dissolved gases in the standard oil samples often have obvious leakage, overflow and attenuation, which greatly affects the accuracy of the calibration work
Method used
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Embodiment Construction
[0023] see figure 1 As shown, the present invention is a universal portable dissolved gas in oil on-line monitor calibration device, including oil storage device main body 1, flange 2, piston device 3, oil valve 4, gas valve 5, air pressure gauge 6 and quick-insert Type four-way 7.
[0024] The main body 1 of the oil storage device is used to store the standard oil sample configured by the laboratory and transport it to the site for verification of the oil chromatography on-line monitoring device; the main body 1 of the oil storage device is a cylinder structure with a flange 2 on the top; A sealing ring is provided between the flange 2 and the main body 1 of the oil storage device to ensure the tightness of the cavity in the main body 1 of the oil storage device.
[0025] The piston device 3 includes a piston 31 and a piston rod 32. The piston 31 is arranged inside the main body 1 of the oil storage device and is sealed with the inner wall of the main body 1 of the oil stora...
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The invention discloses a universal portable calibration apparatus for an on-line monitor used for gas dissolved in oil. The universal portable calibration apparatus comprises an oil storage apparatus main body, a flange, a piston device, oil valves and air valves, wherein the flange is arranged on the top of the oil storage apparatus main body; space between the flange and the oil storage apparatus main body is sealed; the piston device comprises a piston and a piston rod; the piston is placed in the oil storage apparatus main body and hermetically connected with the inner wall of the oil storage apparatus main body 1; one end of the piston rod is connected with the piston, and the other end of the piston rod penetrates the flange on the top of the oil storage apparatus main body; the oil valves include a bottom oil valve arranged on the bottom of the oil storage apparatus main body and an oil inlet valve arranged on the upper part of the oil storage apparatus main body; and the air valves include an air inlet valve and an air outlet valve arranged on the upper part of the oil storage apparatus main body. The universal portable calibration apparatus provided by the invention is used for storing a standard oil sample used for calibration of an on-line monitoring apparatus used for gas dissolved in transformer oil and reduces attenuation and escape of dissolved gas in the process of transport.
Description
technical field [0001] The invention relates to the field of on-line monitoring of dissolved gas in oil of an oil-paper insulated transformer, in particular to a universal portable on-line monitor of dissolved gas in oil calibrating device. Background technique [0002] Transformers are one of the most important and expensive equipment in power systems. With the continuous development of the current smart grid construction work, the design and application of transformers are also developing in the direction of high voltage and ultra high voltage. On-line monitoring of transformers, so as to timely discover insulation defects and latent faults inside the transformer, is an important means to maintain safe and reliable operation of the power grid. The chromatographic analysis of the dissolved gas in the insulating oil inside the transformer is recognized as an effective transformer on-line monitoring method, and has been widely used to diagnose the internal faults of the tran...
Claims
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IPC IPC(8): G01N30/02G01N30/20
CPCG01N30/02G01N30/20
Inventor 吴经锋毛辰朱红梅韩彦华单玉涛杨传凯王丽董明谢佳成肖智刚
Owner STATE GRID CORP OF CHINA