A gas relay sealing performance test device

Abstract

The present invention relates to the field of relay detection devices and discloses a gas relay sealing performance test device, comprising a relay body and a No. 1 sealed chamber, wherein an oxygen concentration detector is installed on one side of the outside of the No. 1 sealed chamber, a rotating motor is fixedly connected to one side of the inner wall of the No. 1 sealed chamber, a limiting component is fixedly connected to one side of the outside of the rotating motor, and one side of the limiting component is tightly fitted with the outside of the relay body, and a sealing component is connected to one end of the outside of the relay body. By comparing the changes in the oxygen concentrations inside the No. 1 sealed chamber and the No. 2 sealed chamber before and after the test, it is determined whether they are within a normal error variation range, and whether the sealing performance of the relay body is good, so that the device can well achieve the purpose of testing the sealing performance of the relay body, and at the same time, the limiting component facilitates the rapid disassembly and assembly of the relay body inside the No. 1 sealed chamber.

Description

Technical Field

[0001] The present invention relates to the field of relay detection devices, in particular to a gas relay sealing performance test device. Background Art

[0002] The gas relay is an important safety protection device on oil-immersed transformers. It is installed on the connecting pipe between the transformer cover and the oil conservator. Under the action of gas or oil flow generated by internal faults in the transformer, it connects the signal or trips the circuit, causing the relevant devices to send out alarm signals or cut off the transformer from the power grid, thereby protecting the transformer.

[0003] At present, gas relays need to be sampled and tested for various parameter performances before leaving the factory. Among them, the sealing performance of the relay is an important inspection aspect to ensure the performance of the relay during use. However, there is currently a lack of effective test equipment for relays, and the sealing performance of the relay cannot be effectively tested. Summary of the Invention

[0004] In order to solve the above-mentioned problems, the present invention provides a gas relay sealing performance test device.

[0005] A gas relay sealing performance test device provided by the present invention adopts the following technical solution: a gas relay sealing performance test device, including a relay body and a No. 1 sealed chamber, an oxygen concentration detector is installed on the outer side of the No. 1 sealed chamber, a rotating motor is fixedly connected to one side of the inner wall of the No. 1 sealed chamber, a limiting component is fixedly connected to the outer side of the rotating motor, and one side of the limiting component is tightly fitted with the outer side of the relay body, a sealing component is connected to one end of the outer side of the relay body, and a No. 2 sealed chamber is clamped at the lower part of the outer side of the No. 1 sealed chamber.

[0006] By adopting the above technical solution, the relay body can be quickly disassembled and assembled inside the No. 1 sealed chamber through the limit assembly, and the limit assembly and the relay body are driven to rotate by the rotating motor, so that the oxygen inside the relay body can fully flow throughout the relay body during the test period, which is more conducive to the detection of the sealing of the relay body. At the same time, the sealing assembly can ensure the sealing of the relay body interface during the test, and avoid the oxygen inside the relay body from flowing out from the connection to the greatest extent, thereby reducing the error caused by the test.

[0007] Preferably, the limiting assembly includes a support frame, a limiting block, and a No. 2 bolt. The outer side of the support frame is fixedly connected to the outside of the rotating motor, the inside of the support frame is threadedly connected to the outer side of the No. 2 bolt, and the outer end of the No. 2 bolt is fixedly connected to the outside of the limiting block.

[0008] By adopting the above technical solution, No. 2 bolts are threadedly connected on both sides of the interior of the No. 2 sealed chamber of the limit assembly, and one end of the outer side of the No. 2 bolt is fixedly connected to the limit block, so that the No. 2 bolt can be rotated to drive the limit block to move, thereby facilitating the fixing of the two sides of the exterior of the relay body between the limit block and the inner wall of the support frame, and facilitating the rapid disassembly and assembly of the relay body inside the No. 1 sealed chamber.

[0009] Preferably, a sponge pad is bonded to one side of the outer portion of the support frame and the limiting block.

[0010] By adopting the above technical solution, sponge pads are bonded to one side of the outer portion of the limit block and the support frame, thereby preventing the limit assembly from excessively limiting the relay body and causing damage to the outer surface of the relay body.

[0011] Preferably, the sealing assembly includes a flange, a fixing frame, a No. 1 bolt and an arc-shaped limit plate. The outer side of the flange is fitted and connected to the outside of the relay body, the outer side of the flange is fixedly connected to the outside of the fixing frame, the inside of the fixing frame is threadedly connected to the outside of the No. 1 bolt, and one end of the outer side of the No. 1 bolt is movably connected to the outside of the arc-shaped limit plate.

[0012] By adopting the above technical solution, by rotating the No. 1 bolt on both sides, the outer end of the No. 1 bolt can drive the arc-shaped limit plate to move linearly, so that one side of the arc-shaped limit plate on both sides can fit tightly with the connection between the flange and the end face of the relay body, so that the sealing of the connection between the flange and the relay body can be effectively improved, and the oxygen inside the relay body can be prevented from flowing out of the connection to the greatest extent, thereby reducing the error caused to the test.

[0013] Preferably, a plurality of plug rods are fixedly connected to one side of the outer side of the flange, a plurality of jacks are provided inside the relay body, and the distribution positions of the plurality of plug rods and the plurality of jacks correspond to each other one by one.

[0014] By adopting the above technical solution, a number of plug rods are fixedly connected to the outer side of the flange in the sealing assembly, and a number of sockets are opened inside the connection port of the relay body. During the test, the outer sides of the several plug rods can be completely inserted into the inner sides of the several sockets, which facilitates the fitting of one side of the flange with the interface end face of the relay body, while also ensuring the support of the flange and facilitating subsequent operations.

[0015] Preferably, a handle is fixedly connected to the upper surface of the No. 1 sealed chamber, and rubber pads are bonded to the inner walls of the No. 1 sealed chamber and the No. 2 sealed chamber.

[0016] By adopting the above technical solution, rubber pads are bonded to the inner walls of the No. 1 sealed chamber and the No. 2 sealed chamber, which can effectively improve the sealing performance of the clamping gap between the No. 1 sealed chamber and the No. 2 sealed chamber. At the same time, a handle is fixedly connected to the upper surface of the No. 1 sealed chamber, so that after the test is completed, the staff can use the handle to easily separate the No. 1 sealed chamber and the No. 2 sealed chamber.

[0017] In summary, the present invention includes the following beneficial technical effects: by comparing the changes in oxygen concentration inside the No. 1 sealed chamber and the No. 2 sealed chamber before and after the test, to see whether they are within the normal error variation range, it is judged whether the sealing performance of the relay body is good, so that the device can well achieve the purpose of testing the sealing performance of the relay body. At the same time, the limit assembly facilitates the rapid disassembly and assembly of the relay body inside the No. 1 sealed chamber. In addition, the limit assembly and the relay body are driven to rotate by the rotating motor, so that the oxygen inside the relay body can fully flow throughout the relay body during the test period, which is more conducive to the detection of the sealing performance of the relay body and improves the effectiveness of the test of the device; through the sealing assembly, it is convenient to ensure the sealing of the relay body interface during the test, and to avoid the outflow of oxygen from the connection inside the relay body to the greatest extent, reduce the error caused by the test, and further improve the effectiveness of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the main body connection of the test device of the application embodiment;

[0019] Figure 2 This is a structural diagram of the detailed connection between the flange and the relay body of the embodiment of the application;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the support frame of the embodiment of the application;

[0021] Figure 4 This is a schematic diagram of the structure of the three-dimensional separation of the sealed chamber of the embodiment of the application;

[0022] Figure 5 It is a structural schematic diagram of the partial three-dimensional separation of the flange and the relay in the embodiment of the application.

[0023] Explanation of the accompanying symbols: 1. Sealed chamber No. 1; 2. Rubber pad; 3. Relay body; 4. Fixing bracket; 5. Oxygen concentration detector; 6. Support bracket; 7. Rotating motor; 8. Flange; 9. Arc-shaped limit plate; 10. Bolt No. 1; 11. Sponge pad; 12. Limit block; 13. Bolt No. 2; 14. Insert rod; 15. Socket; 16. Sealed chamber No. 2; 17. Handle. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-5 The present invention is described in further detail.

[0025] The embodiment of the present invention discloses a gas relay sealing performance test device. Figure 1 、 Figure 3 as well as Figure 4 , a gas relay sealing performance test device, the device is equipped with an oxygen concentration detector 5 above the outside of the No. 1 sealed chamber 1, and the oxygen concentration detector 5 is used to timely detect the oxygen value inside the No. 1 sealed chamber 1 and the No. 2 sealed chamber 16. At the same time, No. 2 bolts 13 are threadedly connected on both sides of the No. 2 sealed chamber 16 of the limiting component, and one end of the outer side of the No. 2 bolts 13 is fixedly connected to the limiting block 12, so that the No. 2 bolts 13 can be rotated to drive the limiting block 12 to move, thereby facilitating the limiting and fixing of the two sides of the outer side of the relay body 3 between the limiting block 12 and the inner wall of the support frame 6, facilitating the rapid disassembly and assembly of the relay body 3 inside the No. 1 sealed chamber 1. At the same time, sponge pads 11 are bonded to one side of the limiting block 12 and the outer side of the support frame 6 to prevent the limiting component from excessively limiting the relay body 3, which causes damage to the outer surface of the relay body 3;

[0026] The lower part of the outside of the No. 1 sealed chamber 1 of the device is clamped with the inside of the No. 2 sealed chamber 16 during the test, so that a sufficiently sealed environment is formed inside the No. 1 sealed chamber 1 and the No. 2 sealed chamber 16, and outside air is prevented from flowing into the interior of the No. 1 sealed chamber 1 and the No. 2 sealed chamber 16 as much as possible to increase the error of the test. At the same time, rubber pads 2 are bonded to the inner walls of the No. 1 sealed chamber 1 and the No. 2 sealed chamber 16, which can effectively improve the sealing performance of the clamping gap between the No. 1 sealed chamber 1 and the No. 2 sealed chamber 16. At the same time, a handle 17 is fixedly connected to the upper surface of the No. 1 sealed chamber 1, so that after the test is completed, the staff can use the handle 17 to separate the No. 1 sealed chamber 1 and the No. 2 sealed chamber 16.

[0027] Reference Figure 1 and Figure 3 The outer side of the support frame 6 in the limit assembly of the device is fixedly connected to the output end of the rotating motor 7, so that during the test, the limit assembly can be driven to rotate by the rotating motor 7, thereby synchronously driving the relay body 3 to rotate, so that the oxygen inside the relay body 3 can fully flow throughout the relay body 3 during the test period, which is more conducive to the detection of the sealing of the relay body 3.

[0028] Reference Figure 1 、 Figure 2 as well as Figure 5In the sealing assembly, a plurality of plug rods 14 are fixedly connected to the outer side of the flange 8, and a plurality of sockets 15 are opened inside the connection port of the relay body 3, so that during the test, the outer sides of the plurality of plug rods 14 can be completely inserted into the inner sides of the plurality of sockets 15, which facilitates the fitting of one side of the flange 8 with the interface end face of the relay body 3, while also ensuring the support of the flange 8 and facilitating subsequent operations;

[0029] At the same time, in the sealing assembly, the fixing frame 4 is internally threadedly connected to a No. 1 bolt 10, and one end of the outer side of the No. 1 bolt 10 is rotatably connected to an arc-shaped limit plate 9 through a bearing. At the same time, a sealing gasket is bonded to one side of the outer side of the arc-shaped limit plate 9, so that during the test, the No. 1 bolt 10 on both sides can be rotated so that the outer end of the No. 1 bolt 10 can drive the arc-shaped limit plate 9 to move linearly, so that one side of the arc-shaped limit plate 9 on both sides can fit tightly with the connection between the flange 8 and the end face of the relay body 3, so that the sealing of the connection between the flange 8 and the relay body 3 can be effectively improved, and the oxygen inside the relay body 3 can be prevented from flowing out from the connection to the greatest extent, thereby reducing the error caused to the test.

[0030] The implementation principle of a gas relay sealing performance test device according to an embodiment of the present invention is as follows: when it is necessary to test the sealing performance of the relay body 3, the staff first connects the air pump to the connection port of the relay body 3, so that the air pump can deliver a certain amount of oxygen into the interior of the relay body 3. After a certain amount of oxygen is delivered, the plurality of plug rods 14 on the outer side of the flange 8 are plugged into the interior of the plurality of plug holes 15 in a one-to-one correspondence, so that one side of the flange 8 is conveniently fitted with the interface end face of the relay body 3, while at the same time ensuring the support of the flange 8, which is convenient for subsequent operations;

[0031] Then the staff can rotate the No. 1 bolts 10 on both sides so that the No. 1 bolts 10 can drive the arc-shaped limit plates 9 to move linearly, so that one side of the arc-shaped limit plates 9 on both sides can be tightly fitted with the connection between the flange 8 and the end face of the relay body 3, so that the sealing of the connection between the flange 8 and the relay body 3 can be effectively improved, and the oxygen inside the relay body 3 can be prevented from flowing out from the connection to the greatest extent, thereby reducing the error caused by the test;

[0032] Then the staff rotates the No. 2 bolts 13 on both sides of the support frame 6 so that the No. 2 bolts 13 can drive the limit blocks 12 to move, thereby facilitating the limitation of the two sides of the outside of the relay body 3 between the limit blocks 12 and the inner wall of the support frame 6, facilitating the stability of the relay body 3 inside the No. 1 sealed chamber 1, and then the lower part of the outside of the No. 1 sealed chamber 1 is clamped with the inside of the No. 2 sealed chamber 16, so that the interior of the No. 1 sealed chamber 1 and the No. 2 sealed chamber 16 form a sufficiently sealed environment, avoiding outside air from flowing into the interior of the No. 1 sealed chamber 1 and the No. 2 sealed chamber 16 as much as possible, increasing the error of the test. At this time, the staff can adjust the oxygen concentration detector 5 so that the oxygen concentration detector 5 can detect the oxygen concentration inside the No. 1 sealed chamber 1 and the No. 2 sealed chamber 16 and record it;

[0033] Set the test time, and then start the rotating motor 7 with an external power supply, so that the rotating motor 7 can drive the limit assembly to rotate, thereby synchronously driving the relay body 3 to rotate, so that the oxygen inside the relay body 3 can fully flow inside the relay body 3 during the test period, which is more conducive to the detection of the sealing of the relay body 3. When the test time is up, the staff starts the oxygen concentration detector 5 again, so that the oxygen concentration detector 5 can detect the oxygen concentration inside the No. 1 sealed chamber 1 and the No. 2 sealed chamber 16 again, and then compare it with the value just detected to see whether it is within a reasonable error range. When it exceeds the error range, it means that the sealing of the relay body 3 is insufficient, otherwise it means that the sealing is good.

[0034] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A gas relay sealing performance test device, characterized by: The invention comprises a relay body (3) and a No. 1 sealed chamber (1), an oxygen concentration detector (5) is installed on the outer side of the No. 1 sealed chamber (1), a rotating motor (7) is fixedly connected to the inner wall of the No. 1 sealed chamber (1), a limiting component is fixedly connected to the outer side of the rotating motor (7), and one side of the limiting component is tightly fitted with the outer side of the relay body (3), an outer end of the relay body (3) is connected with a sealing component, and the sealing component comprises a flange (8), a fixing frame (4), a No. 1 bolt (10) and an arc-shaped limiting plate (9), an outer side of the flange (8) is fitted and connected to the outer side of the relay body (3), an outer side of the flange (8) is fixedly connected to the outer side of the fixing frame (4), and the inner side of the fixing frame (4) is tightly fitted with the outer side of the No. 1 bolt (10). The invention relates to a screw thread connection, wherein one end of the outer side of the No. 1 bolt (10) is movably connected to the outer side of the arc-shaped limit plate (9), and a plurality of plug rods (14) are fixedly connected to the outer side of the flange (8). A plurality of jacks (15) are provided inside the relay body (3), and the distribution positions of the plurality of plug rods (14) and the plurality of jacks (15) are all corresponding to each other. A No. 2 sealed chamber (16) is clamped below the outer side of the No. 1 sealed chamber (1); the limit assembly includes a support frame (6), a limit block (12), and a No. 2 bolt (13), an outer side of the support frame (6) is fixedly connected to the outer side of the rotating motor (7), the interior of the support frame (6) is threadedly connected to the outer side of the No. 2 bolt (13), and an outer end of the No. 2 bolt (13) is fixedly connected to the outer side of the limit block (12).

2. A gas relay sealing performance test device according to claim 1, characterized in that: A sponge pad (11) is bonded to one side of the exterior of the support frame (6) and the limiting block (12).

3. A gas relay sealing performance test device according to claim 1, characterized in that: A handle (17) is fixedly connected to the upper surface of the No. 1 sealed chamber (1), and rubber pads (2) are bonded to the inner walls of the No. 1 sealed chamber (1) and the No. 2 sealed chamber (16).

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