CN219369046U - Device for testing tightness of built-in partial discharge sensor of GIS equipment - Google Patents

Abstract

The utility model relates to a tightness testing device, in particular to a device for testing tightness of a built-in partial discharge sensor of GIS equipment, which comprises a square basin, a submersible pump, a workbench, a valve A, a round basin, a water pipe, a sensor, a power supply, a test fixture, an air inlet pipe, a valve B, a pressure gauge, an air compressor and a water pump switch, wherein the square basin is arranged on the workbench; the square basin and the round basin are both filled with a certain amount of clear water, the bottom of the square basin is provided with a submersible pump, the submersible pump can inject the clear water in the square basin into the round basin according to the requirement, the clear water in the round basin is used for observing whether bubbles overflow when a sample is immersed, the round basin is arranged on a workbench and forms a certain drop with the square basin, and a water pipe is connected with a water outlet of the submersible pump; the whole set of device is composed of a simulated sample working condition, a simple filling and draining system, an inflating and pressure maintaining system and a sealing test process, and can test the tightness of the GIS built-in partial discharge sensor simply, conveniently and rapidly so as to judge whether the tightness of the sensor meets the requirement.

Description

Device for testing tightness of built-in partial discharge sensor of GIS equipment

Technical Field

The utility model relates to the technical field of partial discharge of GIS combined electrical equipment, in particular to a device for testing tightness of a built-in partial discharge sensor of GIS equipment.

Background

In recent years, with the great development of electric power industry, GIS equipment is used in a large amount in the electric network, more and more sensors are used for monitoring partial discharge in the GIS, and with the increase of the consumption of the sensors, the leakage failure rate of the GIS is higher and higher due to the reasons of sealing design defects or poor sealing technology and the like, and the leakage of the GIS can not only influence the normal operation of the equipment, but also bring harm to maintenance staff and ecological environment. Therefore, as a sealing test of a sensor mounted on a GIS body, although the GIS device as a whole is subjected to a sealing test in a factory test, if the sealing property of the whole device is affected because the sealing of a sensor portion does not reach the standard, it is fatal to a sensor manufacturer, and at present, there are two main types of conventional sealing leakage detection: one is to perform qualitative leak detection by using an SF6 leak detector; the quantitative leak detection is carried out by a local binding method, so that the efficiency is low; if only for checking the tightness of the sensor, such checking cost and efficiency are unsuitable, SF6 gas can be wasted, the random emission is more pollution to the environment, the device aims to simulate the working environment of the sensor under certain pressure, and simultaneously, the SF6 gas is replaced by air, so that the tightness of the sensor is mainly detected, and the device has the characteristics of environmental protection, energy saving and high efficiency.

Disclosure of Invention

The utility model solves the problem of providing a device for testing the tightness of a built-in partial discharge sensor of GIS equipment, when the sensor is assembled according to the requirement, the sensor is fixed on a pressure test tool, then the sensor is immersed into water integrally, when the water surface is static and has no bubble, an air compressor is started to charge the pressure of 0.8MPa into the inner cavity of the sensor, then an air valve is closed and the sensor is kept static for 10 minutes, whether bubbles overflow on a sealing surface and a signal port or not is observed, if no bubble overflow exists, the sensor is qualified in sealing, and if the sensor has bubble overflow, the sensor is disqualified.

In order to achieve the above purpose, the present utility model adopts the following technical scheme: a device for testing tightness of a built-in partial discharge sensor of GIS equipment comprises: square basin, immersible pump, workstation, valve A, round basin, water pipe, sensor, power, test fixture, intake pipe, valve B, manometer, air compressor and water pump switch; the square basin and the round basin are both filled with a certain amount of clear water, the submersible pump is arranged at the bottom of the square basin, the clear water in the square basin can be filled into the round basin according to the requirement, the clear water in the round basin is used for observing whether bubbles overflow when a sample is immersed, the round basin is arranged on the workbench and forms a certain drop with the square basin, the water pipe is connected with the water outlet of the submersible pump, the clear water in the square basin is led into the round basin through the submersible pump, the power supply provides power for the submersible pump and the air compressor, the air inlet pipe, the valve B and the pressure gauge are sequentially connected with the air outlet of the air compressor to provide air pressure for the sample, the air is filled and discharged, and the water pump switch is used for controlling the starting and stopping of the submersible pump.

The beneficial effects of the utility model are as follows: the device only tests the tightness of the sensor, and meanwhile, the sealing test medium is replaced by air from the original SF6 gas, so that not only is the environmental pollution caused by SF6 gas leakage eliminated, but also the process of recovering SF6 gas after the test is completed is omitted, and meanwhile, SF6 gas is also saved, and in the test process, whether the sample leaks or not can be conveniently distinguished by observing whether bubbles exist on the water surface, the sources of the bubbles and the changes of the bubbles; the device is simple to operate, the test pressure can be adjusted at will according to actual conditions, the working efficiency is high, and the device is very practical.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Legend description:

square basin 1; a submersible pump 2; a work table 3; a valve A4; a round basin 5; a water pipe 6; a sensor 7; a power supply 8; a test fixture 9; an intake pipe 10; a valve B11; a pressure gauge 12; an air compressor 13; a water pump switch 14.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Specific examples are given below.

Referring to fig. 1, a device for testing tightness of a built-in partial discharge sensor of a GIS device includes: square basin 1, submerged pump 2, workbench 3, valve A4, round basin 5, water pipe 6, sensor 7, power supply 8, test fixture 9, air inlet pipe 10, valve B11, pressure gauge 12, air compressor 13 and water pump switch 14; the square basin 1 and the round basin 5 are filled with a certain amount of clear water, the submersible pump 2 is arranged at the bottom of the square basin 1, the submersible pump 2 can fill clear water in the square basin 1 into the round basin 5 according to requirements, the clear water in the round basin 5 is used for observing whether bubbles overflow when a test article (a test tool 9 and a sensor 7 are assembled into the test article) is immersed, the round basin 5 is arranged on the workbench 3 and forms a certain drop with the square basin 1, the water pipe 6 is connected with a water outlet of the submersible pump 2, the clear water in the square basin 1 is led into the round basin 5 through the submersible pump 2, the power supply 8 is used for providing power for the submersible pump 2 and the air compressor 13, the air inlet pipe 10, the valve B11 and the pressure gauge 12 are sequentially connected with the air outlet of the air compressor 13 to provide air pressure for the test article and control the filling and the discharging of air, and the water pump switch 14 is used for controlling the starting and stopping of the submersible pump 2.

Working principle: when the sample is placed in the round basin 5, the submersible pump 2 is started to start water injection, when the sample is just immersed by water, the water is kept still for a while, the air compressor 13 is started to inject 0.8MPa of air into the inner cavity of the sample, the pressure environment where the sensor is positioned is consistent with the pressure environment in practical application, after 10 minutes of standing and pressure maintaining, whether air bubbles overflow from the sealing surface of the sample and the signal port, the air bubbles overflow, the sensor is unqualified in sealing, if no air bubbles overflow, the sensor is qualified in sealing, then the pressure of the inner cavity of the sample is removed, the valve B11 is opened, after the redundant water is discharged, the sample is taken out, and the next test of the sample is performed again.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (1)

1. The utility model provides a GIS equipment embeds device of partial discharge sensor leakproofness test which characterized in that includes: square basin (1), immersible pump (2), workstation (3), valve A (4), round basin (5), water pipe (6), sensor (7), power (8), test fixture (9), intake pipe (10), valve B (11), manometer (12), air compressor (13) and water pump switch (14); the utility model provides a water pump, including square basin (1), round basin (5), immersible pump (2) have been put to square basin (1) bottom, immersible pump (2) can be with the clean water in square basin (1) pour into round basin (5) into according to the requirement in, the clear water in round basin (5) is for observing when the sample is submerged have bubble to spill over usefulness, round basin (5) are arranged in workstation (3), form certain fall with square basin (1), water pipe (6) are connected with immersible pump (2) delivery port, import round basin (5) with the clear water in square basin (1) through immersible pump (2), power (8) are for immersible pump (2) and air compressor (13) provide power, intake pipe (10), valve B (11) and manometer (12) are connected in proper order with air compressor (13), for the sample provides atmospheric pressure to control gas fill and discharge, water pump switch (14) are the start and the stop of control immersible pump (2).