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Sampling device and sampling method for gas content of insulating oil

A sampling device and gas content technology, applied in the direction of sampling devices, etc., can solve problems such as the difficulty of sampling insulating oil gas content, achieve the effects of optimizing oil sampling test conditions, improving test accuracy, and ensuring accuracy

Active Publication Date: 2014-01-08
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Based on this, in view of the difficulty of sampling the gas content of insulating oil, it is necessary to propose a simple and quick sampling device and sampling method for the gas content of insulating oil

Method used

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  • Sampling device and sampling method for gas content of insulating oil
  • Sampling device and sampling method for gas content of insulating oil
  • Sampling device and sampling method for gas content of insulating oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1 As shown, the present invention provides a sampling device 10 for the gas content of insulating oil, including a sampling joint 120, a sampling pipeline device 130 connected to the sampling joint 120 at one end, and a sampler 150 detachably connected to the other end of the sampling pipeline device 130, And a vacuum filtration device 140 connected to the sampling line device 130 . The insulating oil gas content sampling device 10 is connected with a sampling device, that is, a transformer, the transformer has a sampling valve 110 , and the sampling joint 120 is connected with the sampling valve 110 .

[0045] Before sampling, the sampling pipeline device 130, the sampling valve 110, and the sampling joint 120 are vacuumized through the vacuum filter device 140 connected with the sampling pipeline device 130, and the whole sampling process is carried out in a sealed environment, avoiding the The gas outside the process is mixed into the oil sample, and ...

Embodiment 2

[0058] Such as Figure 4 As shown, the sampling pipeline device 130' includes a sampling tube 133, and a common joint 131 connected to one end of the sampling tube 133, and the common joint 131 is connected to the sampling joint 120; it also includes a three-way valve 132 connected to the other end of the sampling tube 133, The other end of the three-way valve 132 is detachably connected to the sampler 150 , and the third end of the three-way valve 132 is connected to the vacuum filtration device 140 . The sampling pipe 133, the vacuum filter device 140 and the sampling pipe 133 are connected together by the three-way valve 132, so as to facilitate the vacuuming process on the sampling pipe 133, the sampling joint 120, the sampling valve 110 and the like. Moreover, through this connection method, the three-way valve 132 and the vacuum filter device 140 are arranged at the end of the sampling device, and the vacuuming operation can be performed away from the charged equipment, ...

Embodiment 3

[0061] Such as Figure 5 As shown, the sampling pipeline device 130 "includes a sampling tube 133, and a common connector 131 connected to one end of the sampling tube 133, and the common connector 131 is connected to the sampling connector 120; it also includes a three-way valve 132 whose two ends are connected to the middle of the sampling tube 133 , the third end of the three-way valve 132 is connected with the vacuum filtration device 140; the sampler 150 is detachably connected with the other end of the sampling tube 133. Utilize the three-way valve 132 to connect the sampling tube 133, the vacuum filtration device 140 and the sampling tube 133 Together, it is convenient to vacuumize the sampling tube 133, sampling joint 120, sampling valve 110, etc., and can select a suitable position on the sampling tube 133 for vacuuming according to the actual situation, which has strong adaptability.

[0062] Compared with Embodiment 1, the difference is that the installation positio...

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Abstract

The invention discloses a sampling device and a sampling method for the gas content of insulating oil. The sampling device for the gas content of the insulating oil comprises a sampling joint, a sampling pipeline device of which one end is connected with the sampling joint, a sampler detachably connected with the other end of the sampling pipeline device, and a vacuum suction filtration device connected with the sampling pipeline device. The sampling device can improve the accuracy of a test result, is easy to operate is mounted conveniently and quickly and can realize hot-line work.

Description

technical field [0001] The invention relates to the field of sampling devices for electric equipment, in particular to a sampling device for the gas content of insulating oil and a sampling method thereof. Background technique [0002] Air content analysis is an important means for the research of ultra-high voltage transformers and other equipment in the power system, the detection of operational defects, and the implementation of condition-based maintenance. After analyzing the historical test data of the transformer insulating oil gas content test, it is found that the content of oxygen and nitrogen components in 80% of the test results exceeds the industry's pre-test standard, and the content ratio is close to the ratio of oxygen and nitrogen in the air However, after retesting these ultra-high voltage transformer equipment, it was found that some of the unqualified oil samples were not defective in the oil samples themselves, but were mixed with air during the oil sampl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/14
Inventor 赵崇智陆国俊王勇黄青丹张德智刘静宋浩永徐诗颖吴培伟李聃林满堂戴月容邓杞绍邓剑平饶锐郑福利杜学明邱晓茵林琳
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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