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Device for adopting SF6 gas for shell leakage detection and method

A shell and gas technology, which is applied in the field of leak detection of closed combined electric appliances, can solve the problems of increased cost of leak detection, large dosage, and large volume, and achieve the effects of reduced dosage, simple operation, and wide applicability

Pending Publication Date: 2018-11-06
SHANDONG TAIKAI HIGH VOLTAGE SWITCH
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  • Abstract
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Problems solved by technology

However, these shells have different lengths and large volumes. If the internal SF6 gas is directly filled for leak detection, a large amount must be used, resulting in an increase in leak detection costs.

Method used

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  • Device for adopting SF6 gas for shell leakage detection and method
  • Device for adopting SF6 gas for shell leakage detection and method

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Embodiment Construction

[0023] In order to clearly illustrate the technical features of the solution, the solution will be described below through specific implementation modes.

[0024] One using SF 6 The device for gas leak detection of the shell includes a water inlet flange 2 and an air inlet flange 8 that are sealed and connected at both ends of the shell 4. The inlet flange 8 is provided with an air charging port 7 and an observation window 6. One side of the water flange 2 is sealed with a water bag 5, and the water inlet flange 2 is provided with a water injection port 1 communicating with the water bag and the outside world, and a liquid outlet 3 located above the water injection port 1. Both the water port 1 and the liquid outlet 3 are provided with plugs that are threadedly connected with the water inlet flange, and the gas charging port 7 is provided with a plug that is threaded with the inlet flange.

[0025] This embodiment also includes a vacuum device detachably connected to the liqu...

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Abstract

The invention relates to a device for adopting an SF6 gas for shell leakage detection, which comprises a water inlet flange and a gas inlet flange in sealed connection onto two ends of the shell. An inflating port and an observation window are arranged on the gas inlet flange; one side surface of the water inlet flange is in sealed connection with a water pocket; a water injection port which enables the water pocket and the outside to be communicated and a liquid outlet located above the water injection port are arranged in the water inlet flange; and detachable blocks are arranged at the water injection port, the liquid outlet and the inflating port. In use, liquid is firstly injected in the water pocket, the volume of the water pocket is increased, the volume between the water pocket andthe shell is further reduced, and when the SF6 gas is inflated, as the volume between the water pocket and the shell is small, the use amount of the SF6 gas is reduced, and the leakage detection costis reduced.

Description

technical field [0001] The invention relates to the technical field of leak detection for closed combined electrical appliances, in particular to a leak detection method using SF 6 A device and method for gas leak detection of a casing. Background technique [0002] With the continuous development of our country's economy, the demand for electric power is also expanding day by day, especially the closed combination electrical appliances of various voltage levels have been vigorously developed. When this type of product is in operation, the SF6 gas pressure in the shell must be ensured to ensure insulation. Therefore, it is necessary to seal and leak test each shell during production. However, these shells have different lengths and are relatively large in size. If the SF6 gas is directly filled inside for leak detection, a large amount must be used, resulting in an increase in the cost of leak detection. Contents of the invention [0003] Aiming at the deficiencies of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/02
CPCG01M3/02
Inventor 臧聪王峰杨文成王兆珉黄海灵李永峰
Owner SHANDONG TAIKAI HIGH VOLTAGE SWITCH
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