Adaptive equalizing ring for casing pressure test

Abstract

The utility model relates to the technical field of bushing detection, concretely to bushing pressure test self -adaptation equalizing ring, including the test detection ring for bushing pressure test, the bottom of test detection ring installs the base, the top surface of base installs the booster pump, the inner wall of test detection ring is inserted and is connected with several groups of test booster pole of uniform equidistance arrangement. The utility model discloses through setting up the base for the whole device provides stable support, and the booster pump can pressurize in the hollow area, makes pressure through test booster pole and act on the bushing, the impact -resistant outer casing of test detection ring and the pressure -resistant inner casing and the hollow area between both, not only enhanced the overall structural strength, but also provided space for pressure transmission, the sealing ring on test booster pole guaranteed the leakproofness, and the top seat helped pressure to transmit better, and the replaceable booster head can adapt to different bushing pressure test demand to realize the self -adaptation equalizing of bushing pressure test, improve the accuracy and applicability of test.

Description

Technical Field

[0001] This utility model relates to the field of casing testing technology, specifically to an adaptive equalizing ring for casing pressure resistance testing. Background Technology

[0002] In power systems, bushings are critical electrical equipment components, and their insulation performance directly affects the safe and stable operation of the power system. Bushing withstand voltage testing is an important means of detecting bushing insulation performance, and it is of great significance for timely detection of potential insulation defects and prevention of electrical accidents. With the continuous increase in power system voltage levels and increasingly stringent requirements for power supply reliability, higher demands are being placed on bushing withstand voltage testing technology. Existing bushing withstand voltage testing equipment has poor adaptability; for different specifications and types of bushings, frequent replacement or adjustment of the testing equipment is required, which is cumbersome and inefficient. Furthermore, traditional equipment is not precise enough in terms of pressure control and monitoring, lacking real-time and effective pressure display and regulation mechanisms, making it difficult to meet the high-precision requirements of modern power systems for bushing withstand voltage testing. Utility Model Content

[0003] The purpose of this invention is to provide an adaptive equalizing ring for bushing pressure testing, so as to solve the problem of poor adaptability of existing bushing pressure testing equipment mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] The bushing pressure test adaptive equalizing ring includes a test detection ring for bushing pressure test. A base is installed at the bottom of the test detection ring, a booster pump is installed on the top surface of the base, and several sets of test booster rods are inserted into the inner wall of the test detection ring in a uniform and equidistant manner.

[0006] The test ring includes an impact-resistant outer shell and a pressure-resistant inner shell, with a hollow area between the impact-resistant outer shell and the pressure-resistant inner shell, and the booster pump is connected to the hollow area through a booster pipe;

[0007] One end of the test pressure boosting rod passes through the pressure-resistant inner shell and extends into the hollow area. A sealing ring is provided between the test pressure boosting rod and the pressure-resistant inner shell. A top seat is coaxially provided at one end of the test pressure boosting rod located in the hollow area. A replaceable pressure boosting head is installed at the end of the test pressure boosting rod that contacts the sleeve.

[0008] Preferably, both the impact-resistant outer shell and the pressure-resistant inner shell are made of metal steel plate with a thickness of 5-8 mm.

[0009] Preferably, a pressure display screen for displaying the air pressure value inside the hollow zone is installed on the outer wall of the test ring.

[0010] Preferably, a pressure relief valve for venting gas is also installed on the outer wall of the test ring.

[0011] Preferably, a limit ring is provided at the end of the test booster rod near the replaceable booster head.

[0012] Preferably, the replaceable booster head is connected to the end of the test booster rod via a screw thread.

[0013] Preferably, the replaceable booster head is made of rubber and the protrusion height is 3-5mm.

[0014] Compared with existing technologies, the beneficial effects of this utility model are:

[0015] 1. In this bushing pressure test adaptive equalization ring, the base provides stable support for the entire device, and the booster pump can pressurize the hollow area, so that the pressure is applied to the bushing through the test booster rod. The impact-resistant outer shell and the pressure-resistant inner shell of the test ring, as well as the hollow area between them, not only enhance the overall structural strength, but also provide space for pressure transmission. The sealing ring on the test booster rod ensures sealing, the top seat helps to better transmit pressure, and the replaceable booster head can adapt to different bushing pressure test requirements, thus realizing adaptive equalization of the bushing pressure test and improving the accuracy and applicability of the test.

[0016] 2. In the adaptive equalizing ring of this bushing pressure test, a pressure relief valve for venting gas is also installed on the outer wall of the test detection ring. The pressure relief valve ensures that if the gas pressure is too high during the test or after the test, the gas can be vented in time to ensure test safety and prevent the device from being damaged due to excessive pressure.

[0017] 3. In this bushing pressure test adaptive equalizing ring, the replaceable pressure booster head and the end of the test pressure booster rod are connected by a screw thread. The screw thread connection makes it easy to disassemble and replace the replaceable pressure booster head. The replaceable pressure booster head is made of rubber, which allows it to fit better when in contact with the bushing, enhancing the sealing performance. At the same time, the rubber material can play a certain buffering role to prevent damage to the bushing. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are explained in detail together with the embodiments of the present invention, but do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the test ring of this utility model;

[0021] Figure 3 This is a cross-sectional structural schematic diagram of the test ring of this utility model;

[0022] 10. Test ring; 11. Pressure display screen; 12. Pressure relief valve; 13. Hollow area; 14. Impact-resistant outer shell; 15. Pressure-resistant inner shell;

[0023] 20. Booster pump; 21. Booster pipe;

[0024] 30. Base;

[0025] 40. Test booster rod; 41. Top seat; 42. Replaceable booster head; 43. Limiting ring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "vertical", "horizontal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] Adaptive equalizing ring for bushing pressure test, such as Figures 1-3As shown, the device includes a test ring 10 for bushing pressure testing. A base 30 is mounted on the bottom of the test ring 10, and a booster pump 20 is mounted on the top surface of the base 30. Several sets of uniformly spaced test booster rods 40 are inserted into the inner wall of the test ring 10. The test ring 10 includes an impact-resistant outer shell 14 and a pressure-resistant inner shell 15. A hollow region 13 is provided between the impact-resistant outer shell 14 and the pressure-resistant inner shell 15. The booster pump 20 is connected to the hollow region 13 through a booster pipe 21. One end of the test booster rod 40 passes through the pressure-resistant inner shell 15 and extends into the hollow region 13. A sealing ring is provided between the test booster rod 40 and the pressure-resistant inner shell 15. The end of the test booster rod 40 located in the hollow region 13 is coaxial. The device is equipped with a top seat 41, and a replaceable pressure head 42 is installed at the end of the test pressure boosting rod 40 that contacts the casing. The base 30 provides stable support for the entire device. The pressure boosting pump 20 can pressurize the hollow area 13, so that the pressure is applied to the casing through the test pressure boosting rod 40. The impact-resistant outer shell 14 and the pressure-resistant inner shell 15 of the test detection ring 10, as well as the hollow area 13 between them, not only enhance the overall structural strength, but also provide space for pressure transmission. The sealing ring on the test pressure boosting rod 40 ensures sealing performance, the top seat 41 helps to better transmit pressure, and the replaceable pressure head 42 can adapt to different casing pressure resistance test requirements, thereby realizing adaptive pressure equalization of the casing pressure resistance test and improving the accuracy and applicability of the test.

[0029] It is worth noting that both the impact-resistant outer shell 14 and the pressure-resistant inner shell 15 are made of metal steel plates with a thickness of 5-8mm. The impact-resistant outer shell 14 and the pressure-resistant inner shell 15, made of relatively thick metal steel plates, enable the test ring 10 to have strong impact and pressure resistance, ensuring the structural stability of the device during the test.

[0030] Furthermore, a pressure display screen 11 is installed on the outer wall of the test ring 10 to display the air pressure value inside the hollow zone 13. Through the air pressure display screen 11, the operator can intuitively understand the air pressure value inside the hollow zone 13 in real time, which is convenient for controlling and adjusting the test pressure.

[0031] Specifically, a pressure relief valve 12 for venting gas is also installed on the outer wall of the test ring 10. The pressure relief valve 12 ensures that if the gas pressure is too high during the test or after the test, the gas can be vented in time to ensure test safety and prevent the device from being damaged due to excessive pressure.

[0032] Among them, a limit ring 43 is provided at one end of the test booster rod 40 near the replaceable booster head 42. The limit ring 43 limits the position of the replaceable booster head 42 on the test booster rod 40, preventing excessive displacement and ensuring the stability of the boosting effect.

[0033] In addition, the ends of the replaceable booster head 42 and the test booster rod 40 are connected by a screw thread. The screw thread connection makes it easy to disassemble and replace the replaceable booster head 42. The replaceable booster head 42 is made of rubber head with a protrusion height of 3-5mm, which allows it to fit better when in contact with the sleeve, enhancing the sealing performance. At the same time, the rubber material can play a certain buffering role to prevent damage to the sleeve.

[0034] The working principle of the adaptive equalizing ring in this bushing pressure test:

[0035] First, place the device on a stable test site using the base 30; place the sleeve to be tested for pressure resistance in a suitable position within the test ring 10;

[0036] Next, the booster pump 20 is started, which delivers pressurized gas into the hollow area 13 between the impact-resistant outer shell 14 and the pressure-resistant inner shell 15 through the booster pipe 21; the operator can observe the air pressure value in the hollow area 13 in real time through the air pressure display screen 11 and adjust the output pressure of the booster pump 20 according to the test requirements.

[0037] As the air pressure inside the hollow zone 13 increases, the pressure is applied to the sleeve through the test booster rod 40. The limiting ring 43 on the test booster rod 40 ensures that the replaceable booster head 42 acts stably on the sleeve. Its rubber material and 3-5mm protrusions can fit tightly to the sleeve to achieve a pressure equalization effect.

[0038] If the air pressure in the hollow zone 13 exceeds the safe range or the test requirements during the test, the pressure relief valve 12 can be opened to release some of the gas to ensure the safety and accuracy of the test.

[0039] After the test, first turn off the booster pump 20, then open the pressure relief valve 12 to completely discharge the gas in the hollow area 13, and finally remove the sleeve. If the booster head 42 is worn, it can be disassembled and replaced with a new one through the screw thread connection for use in the next test.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bushing pressure test adaptive equalizing ring, including a test detection ring (10) for bushing pressure testing, characterized in that: The bottom of the test ring (10) is equipped with a base (30), the top surface of the base (30) is equipped with a booster pump (20), and a number of test booster rods (40) are inserted into the inner wall of the test ring (10) in a uniform and equidistant arrangement. The test ring (10) includes an impact-resistant outer shell (14) and a pressure-resistant inner shell (15). A hollow area (13) is provided between the impact-resistant outer shell (14) and the pressure-resistant inner shell (15). The booster pump (20) is connected to the hollow area (13) through a booster pipe (21). One end of the test pressure boosting rod (40) passes through the pressure-resistant inner shell (15) and extends into the hollow area (13). A sealing ring is provided between the test pressure boosting rod (40) and the pressure-resistant inner shell (15). A top seat (41) is coaxially provided at one end of the test pressure boosting rod (40) located in the hollow area (13). A replaceable pressure boosting head (42) is installed at the end of the test pressure boosting rod (40) that contacts the sleeve.

2. The adaptive equalizing ring for bushing pressure testing according to claim 1, characterized in that: Both the impact-resistant outer shell (14) and the pressure-resistant inner shell (15) are made of metal steel plate with a thickness of 5-8 mm.

3. The adaptive equalizing ring for bushing pressure testing according to claim 1, characterized in that: The outer wall of the test ring (10) is equipped with a pressure display screen (11) for displaying the air pressure value inside the hollow area (13).

4. The adaptive equalizing ring for bushing pressure testing according to claim 1, characterized in that: The outer wall of the test ring (10) is also equipped with a pressure relief valve (12) for venting gas.

5. The adaptive equalizing ring for bushing pressure testing according to claim 1, characterized in that: A limit ring (43) is provided at one end of the test booster rod (40) near the replaceable booster head (42).

6. The adaptive equalizing ring for bushing pressure testing according to claim 1, characterized in that: The replaceable booster head (42) and the end of the test booster rod (40) are connected by a screw thread.

7. The adaptive equalizing ring for bushing pressure testing according to claim 1, characterized in that: The replaceable booster head (42) is made of rubber and has a protrusion height of 3-5mm.

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