A gas cabinet charging and discharging auxiliary device

Abstract

The utility model belongs to electrical equipment detection technical field discloses a kind of gas cabinet inflation and deflation auxiliary device, including cylinder, sample to be measured, its characterized by: sample to be measured and cylinder are connected by connecting pipe, valve is installed on the connecting pipe close to sample to be measured one end, low pressure gauge and high pressure gauge are provided on the valve, three-way is provided in the connecting pipe middle part, first switch and second switch are respectively provided in the both sides of three-way, branch pipe is provided in the lower end of three-way, third switch is provided on the branch pipe, branch pipe other end is connected air pump, and the sample to be measured can be quickly sealed and detected.

Description

Technical Field

[0001] This utility model belongs to the field of electrical equipment testing technology, specifically relating to an auxiliary device for charging and discharging gas in a gas cabinet. Background Technology

[0002] The usual procedure for testing the sealing performance of electrical equipment involves connecting the equipment to a high-pressure gas cylinder for inflation. After inflation, the pressure gauge reading is recorded. After the pressure holding time is completed, the pressure gauge reading is measured again. If the pressure gauge reading remains unchanged, the electrical equipment is considered to meet the sealing requirements. However, there is no better method for testing the withstand pressure of electrical equipment. Utility Model Content

[0003] The purpose of this invention is to assemble existing equipment to solve the problems mentioned in the background art.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a gas cabinet filling and discharging auxiliary device, including a steel cylinder and a sample to be tested, characterized in that: the sample to be tested and the steel cylinder are connected by a connecting pipe, a valve is installed on the connecting pipe near the sample to be tested, a low pressure gauge and a high pressure gauge are installed on the valve, a tee is provided in the middle of the connecting pipe, a first switch and a second switch are respectively provided on both sides of the tee, a branch pipe is provided at the lower end of the tee, a third switch is provided on the branch pipe, and an air pump is connected to the other end of the branch pipe.

[0005] The beneficial effects of this utility model are: Compared with existing technologies, this utility model uses a relatively simple structure to detect the sealing performance of the sample under test. By using a three-way valve and three switches, it can achieve multiple air intake and exhaust modes, with a wide measurement range and multiple testing methods. The connecting pipe and branch pipe are made of stainless steel corrugated pipe, while the three-way valve is made of steel. The high-pressure gauge has a measurement range of 0-25 MPa, and the low-pressure gauge has a measurement range of 0-0.6 MPa. Attached Figure Description

[0006] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is an overall structural diagram of the present invention. Detailed Implementation

[0007] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0008] A gas cabinet filling and discharging auxiliary device includes a gas cylinder 11 and a sample 1 to be tested. The sample 1 and the gas cylinder 11 are connected by a connecting pipe 7. A valve 8 is installed on the connecting pipe 7 near the sample 1. A low-pressure gauge 2 and a high-pressure gauge 3 are installed on the valve 8. A tee 5 is located in the middle of the connecting pipe 7. A first switch 4 and a second switch 6 are respectively installed on both sides of the tee 5. A branch pipe 12 is located at the lower end of the tee 5. A third switch 9 is installed on the branch pipe 12. The other end of the branch pipe 12 is connected to an air pump 10. During the measurement process, the high-pressure gas cylinder 11 is opened to fill the sample 1. After filling, the second switch 6 is closed. Then, the third switch 9 and the air pump 10 are opened to refill the sample. The device is closed when the measured value is reached.

[0009] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0010] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A gas cabinet filling and discharging auxiliary device, comprising a gas cylinder (11) and a sample to be tested (1), characterized in that: The sample to be tested (1) and the gas cylinder (11) are connected by a connecting pipe (7). A valve (8) is installed on the connecting pipe (7) near the sample to be tested (1). A low pressure gauge (2) and a high pressure gauge (3) are installed on the valve (8). A tee (5) is installed in the middle of the connecting pipe (7). A first switch (4) and a second switch (6) are installed on both sides of the tee (5). A branch pipe (12) is installed at the lower end of the tee (5). A third switch (9) is installed on the branch pipe (12). An air pump (10) is connected to the other end of the branch pipe (12).

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