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sf 6 Detection method of special shielding positioning cover for qualitative leak detector

A detection method and the technology of a leak detector, which are applied in the direction of detecting the appearance of fluid at the leakage point and using liquid/vacuum to measure the liquid tightness, etc., which can solve interference, false alarms, and heavy workload of leak detection of electrical equipment, etc. Problems, to achieve the effect of simple and light structure, convenient use, and improve the efficiency of on-site detection

Active Publication Date: 2016-11-09
STATE GRID CORP OF CHINA +3
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Problems solved by technology

[0005] The present invention has improved above-mentioned problem, promptly the technical problem to be solved by the present invention is existing SF 6 The workload of leak detection of electrical equipment is heavy, and it is easily disturbed by external factors such as wind, dust, moisture on site, and false alarms often occur

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  • sf <sub>6</sub> Detection method of special shielding positioning cover for qualitative leak detector
  • sf <sub>6</sub> Detection method of special shielding positioning cover for qualitative leak detector
  • sf <sub>6</sub> Detection method of special shielding positioning cover for qualitative leak detector

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] Such as Figure 1~2 As shown, this positioning cover makes full use of SF 6 The quality of gas is 5 times that of air, and it is easy to deposit near the leak point. SF is used 6 The principle that the gas concentration changes after the gas gathers in a small space, by changing the SF 6 The qualitative leak detector detects the detection environment of the probe and improves its detection stability to realize the rapid positioning of the leak point.

[0024] a SF 6 The special shielding positioning cover for qualitative leak detectors has the main points of its structure: it includes an arched cover body 10, and a detection probe 20 is fixed inside the cover body, and the detection probe is connected with a probe connecting pipe 210 passing through the arched cover body. SF 6 A qualitative leak detector 50 is connected. ...

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Abstract

The invention provides a shielding locating hood special for an SF6 qualitative leak detector and a detection of the shielding locating hood. The shielding locating hood comprises an arc hood body. A detection probe is fixed in the hood body and connected with the SF6 qualitative leak detector through a probe connection pipe penetrating through the arc hood body. The shielding locating hood is simple in structure, a semi-closed hood body is adopted and the problem that existing SF6 electrical equipment is large in leak detection workload and prone to interference of outside factors such as on-spot wind power, dust and water and often gives out misinformation is solved. After the arc hood body is used, repeated multiple-time detection is not needed. A gas leakage point can be rapidly located, the on-spot detection efficiency is greatly improved and the shielding locating hood is quite applicable to on-spot leak detection of all sorts of SF6 electrical equipment.

Description

technical field [0001] The invention relates to a special shielding positioning cover, in particular to a 6 A special shielding positioning cover for on-site leak detection of qualitative leak detectors. Background technique [0002] In recent years, with the application of new equipment and new materials, SF 6 Electrical equipment has been widely used in power systems due to its advantages of safety and reliability, high insulation performance, small maintenance workload, and long service life. But with SF 6 Corresponding to the increasing number of equipment, SF 6 SF occurs in electrical equipment during operation 6 Gas leakage incidents are also on the rise. To prevent SF 6 Excessive gas leakage will reduce the main insulation and cause electrical equipment accidents. In daily work, as soon as you find SF 6 Electrical equipment exists SF 6 If there is no sign of gas leakage (abnormally reduced gas pressure), the SF must be checked immediately. 6 Carry out a comp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M3/04
Inventor 郭志斌连鸿松李勇明陆胜华林向荣陈凌郑榕杨燕琴龚智煌
Owner STATE GRID CORP OF CHINA
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