A water pressure test tool for a basin type insulator

Abstract

The utility model discloses a basin type insulator hydrostatic test frock, the upper surface of cylinder is provided with the support flange, and the basin type insulator is supported on the support flange, and the sealing cover plate is provided with the pressing flange in the periphery, and the sealing cover plate is supported on the basin type insulator through the pressing flange, and the pressing flange, the basin type insulator and the support flange are fastened and are connected through bolt and nut, and the upper surface of sealing cover plate is provided with high pressure water inlet ball valve and high pressure exhaust ball valve, and the filter is set up in the cylinder, the utility model discloses reasonable in structure can carry out hydrostatic test to basin type insulator, and the filter is set up in the cylinder, and when water passes through the basin type insulator, conductor falls off, the basin type insulator directly explodes, can be caught through the filter plate of filter of the debris or conductor that falls off, avoids discharging from the bottom's drainage ball valve, reduces the collection difficulty of subsequent cleaning and debris, conductor.

Description

Technical Field

[0001] This utility model relates to the technical field of pot-type insulator hydrostatic testing fixtures, specifically a pot-type insulator hydrostatic testing fixture. Background Technology

[0002] A pot-type insulator is an electrical equipment insulation component assembled with an iron cap, tempered glass component, and steel feet using cement adhesive. It features a cylindrical head structure, characterized by small head size, light weight, high mechanical strength, and large creepage distance. It is widely used in overhead transmission lines, substation busbars, and as external insulation support for electrical equipment. The core purpose of the hydrostatic test for pot-type insulators is to verify their structural integrity and sealing performance under extreme operating conditions, ensuring the long-term safe and reliable operation of gas-insulated metal-enclosed switchgear (GIS). The pressure value of the hydrostatic test is much higher than the normal operating pressure, typically 1.5 times, 2 times, or even higher than the design pressure (or rated pressure). Water is used as the medium because it is virtually incompressible; once it ruptures, the energy release is instantaneous, making it more dangerous than gas. Therefore, this test is the most stringent assessment of the product's ultimate strength. Passing the hydrostatic test means that the pot-type insulator and its installation structure are sufficient to withstand the extreme pressure that may arise from internal faults without bursting.

[0003] When using existing pot-type insulator hydrostatic testing fixtures, if water passes through the pot-type insulator and carries out debris, or if the pot-type insulator conductor falls off, or if the pot-type insulator bursts, the conductor, debris, etc., will fall directly into the cylinder, greatly increasing the difficulty of collection. Therefore, an improved technology is urgently needed to solve this problem in the existing technology. Summary of the Invention

[0004] The purpose of this utility model is to provide a pot-type insulator hydrostatic testing fixture to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pot-type insulator hydrostatic testing fixture, comprising a cylinder, a sealing cover plate, a pot-type insulator, and a filter. A supporting flange is provided on the upper surface of the cylinder, and the pot-type insulator is supported on the supporting flange. A pressing flange is provided on the outer periphery of the sealing cover plate, and the sealing cover plate is supported on the pot-type insulator through the pressing flange. The pressing flange, the pot-type insulator, and the supporting flange are fastened together by bolts and nuts. A high-pressure water inlet ball valve and a high-pressure exhaust ball valve are provided on the upper surface of the sealing cover plate, and the filter is disposed inside the cylinder. The filter includes a filter plate, a baffle, handles, and a lower support. The filter plate is densely covered with filter holes. The filter plate is surrounded by a baffle. Several handles are provided on the upper surface of the filter plate. Several lower supports are provided on the lower surface of the filter plate. The filter plate is supported inside the cylinder by the lower supports.

[0006] Preferably, the present invention provides a basin-type insulator hydrostatic testing fixture, wherein a support frame is provided on the outer surface of the cylinder, and the top of the support frame is connected to the lower surface of the support flange.

[0007] Preferably, the basin-type insulator hydrostatic testing fixture provided by this utility model includes a pressure gauge and two symmetrical loading and unloading lifting parts on the upper surface of the sealing cover plate.

[0008] Preferably, the present invention provides a basin-type insulator hydrostatic testing fixture, wherein a drain ball valve is provided at the bottom of the cylinder.

[0009] Preferably, the basin-type insulator hydrostatic testing fixture provided by this utility model has a handle and a lower support that are both U-shaped rods, and the two ends of the handle and the lower support are respectively connected to the filter plate by two nuts.

[0010] Compared with the prior art, the beneficial effects of this utility model are: (1) A water pressure test can be performed on the basin insulator. A filter is installed inside the cylinder. When water passes through the basin insulator, the conductor falls off, or the basin insulator bursts directly, the filter plate can catch the debris or the fallen conductor, preventing it from being discharged from the bottom drain ball valve, thus reducing the difficulty of subsequent cleaning and collection of debris and conductor.

[0011] (2) The filter is supported in the cylinder by the lower support and a handle is provided on the upper surface. The filter can be easily lifted out by the handle, which further facilitates the collection of debris and detached conductors. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a front view structural diagram of the present invention; Figure 3 For the appendix Figure 2 Schematic diagram of the cross-sectional structure at point AA; Figure 4 This is a schematic diagram of the internal structure of the cylinder; Figure 5 This is a schematic diagram of the filter structure.

[0013] In the diagram: 1. Cylinder body; 2. Sealing cover plate; 3. Basin insulator; 4. Filter; 5. Support flange; 6. Press flange; 7. High-pressure water inlet ball valve; 8. High-pressure exhaust ball valve; 9. Support frame; 10. Pressure gauge; 11. Loading and unloading lifting parts; 12. Drain ball valve; 401. Filter plate; 402. Enclosure; 403. Handle; 404. Lower support. Detailed Implementation

[0014] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. It should be noted that in the description of this utility model, the terms "inner", "outer", "upper", "lower", "both sides", "one end", "the other end", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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. Therefore, they should not be construed as limitations on this utility model.

[0015] Please see Figure 1-5 This utility model provides a technical solution: a pot-type insulator hydrostatic testing fixture, including a cylinder 1, a sealing cover plate 2, a pot-type insulator 3, and a filter 4. A supporting flange 5 is provided on the upper surface of the cylinder 1, and a supporting frame 9 is provided on the outer surface of the cylinder 1. The top of the supporting frame 9 is connected to the lower surface of the supporting flange 5, thereby raising, supporting, and fixing the cylinder 1. The pot-type insulator 3 is supported on the supporting flange 5. A pressing flange 6 is provided on the outer surface of the sealing cover plate 2, and the sealing cover plate 2 is supported on the pot-type insulator 3 through the pressing flange 6. The insulator 3 and the supporting flange 5 are fastened together by bolts and nuts. The upper surface of the sealing cover plate 2 is provided with a high-pressure water inlet ball valve 7 and a high-pressure exhaust ball valve 8. The upper surface of the sealing cover plate 2 is also provided with a pressure gauge 10 and two symmetrical loading and unloading lifting parts 11. The pressure gauge 10 is used to monitor the pressure during the continued water pressure test of the basin insulator. The loading and unloading lifting parts 11 are used to connect with the lifting rope or hook of the lifting equipment to achieve the lifting of the sealing cover plate 2. The filter 4 is set inside the cylinder 1. The bottom of the cylinder 1 is provided with a drain ball valve 12 to discharge the water that has passed through the basin insulator. The filter 4 includes a filter plate 401, a enclosure 402, a handle 403, and a lower support 404. The filter plate 401 is densely covered with filter holes. The enclosure 402 is provided around the filter plate 401. Several handles 403 are provided on the upper surface of the filter plate 401, and several lower supports 404 are provided on the lower surface of the filter plate 401. Both handles 403 and lower supports 404 are U-shaped rods. The two ends of the handles 403 and lower supports 404 are respectively connected to the filter plate 401 through two nuts to realize the connection between the handles 403 and lower supports 404 and the filter plate 401. The filter plate 401 is supported inside the cylinder 1 by the lower supports 404.

[0016] Usage and Principle: First, place the filter 4 inside the cylinder 1. The filter 4 is supported inside the cylinder 1 by the lower support 404. Then, support the outer periphery of the basin insulator 3 to be tested on the support flange 5 on the upper surface of the cylinder 1 and align the holes with the support flange 5. Next, use the hoisting mechanism to lift the sealing cover 2 and support the pressing flange 6 on the outer periphery of the sealing cover 2 on the outer periphery of the basin insulator 3 to be tested, aligning the holes. Use bolts and nuts to securely connect the pressing flange 6, the basin insulator 3 to be tested, and the cylinder 1. Before use, connect the water inlet pipe to the high-pressure water inlet ball valve 7, the exhaust pipe to the high-pressure exhaust ball valve 8, and the drain pipe to the drain ball valve 12. The pressure gauge 10 is installed on the interface of the sealing cover 2. First, open the high-pressure exhaust ball valve 8 and the high-pressure water inlet ball valve 7 to inject water into the sealing cover plate 2. Air is discharged from the high-pressure exhaust ball valve 8 until the sealing cover plate 2 is completely filled with water. Then, close the high-pressure exhaust ball valve 8 and continue adding water. Use the pressure gauge 10 to detect the pressure inside the sealing cover plate 2 until the water pressure reaches the set threshold of the basin insulator 3. If the water pressure does not reach the set threshold, or if the maximum withstand value of the basin insulator 3 is tested, water will flow through the leakage point of the basin insulator 3 and into the cylinder 1, or even the basin insulator 3 may burst directly. Finally, water and some debris will be discharged from the drain ball valve 12. This utility model has a reasonable structure and can perform water pressure tests on the basin-type insulator 3. The cylinder 1 is equipped with a filter 4. When water passes through the basin-type insulator 3, the conductor falls off, or the basin-type insulator 3 bursts directly, the filter plate 401 of the filter 4 can catch the debris or the fallen conductor, preventing it from being discharged from the drain ball valve 12 at the bottom, thus reducing the difficulty of subsequent cleaning and collection of debris and conductor. At the same time, the filter 4 is supported in the cylinder 1 by the lower support 404, and the upper surface is provided with a handle 403, which makes it easy to lift the filter 4 directly, further facilitating the collection of debris and fallen conductor.

[0017] Any aspects of this utility model not described in detail are well-known technologies to those skilled in the art.

[0018] Finally, it should be noted that the above specific embodiments are only used to illustrate the technical solution of this utility model and not to limit it. Although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications and equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A basin-type insulator hydrostatic testing fixture, characterized in that: The device includes a cylinder (1), a sealing cover plate (2), a basin-type insulator (3), and a filter (4). The upper surface of the cylinder (1) is provided with a support flange (5). The basin-type insulator (3) is supported on the support flange (5). The outer periphery of the sealing cover plate (2) is provided with a pressing flange (6). The sealing cover plate (2) is supported on the basin-type insulator (3) through the pressing flange (6). The pressing flange (6), the basin-type insulator (3), and the support flange (5) are fastened together by bolts and nuts. The upper surface of the sealing cover plate (2) is provided with a high-pressure water inlet ball valve (7) and a high-pressure exhaust ball valve (8). The filter (4) is located inside the cylinder (1). The filter (4) includes a filter plate (401), a baffle (402), a handle (403), and a lower support (404). The filter plate (401) is densely covered with filter holes. The baffle (402) is provided around the filter plate (401). Several handles (403) are provided on the upper surface of the filter plate (401). Several lower supports (404) are provided on the lower surface of the filter plate (401). The filter plate (401) is supported inside the cylinder (1) by the lower supports (404).

2. The pot-type insulator hydrostatic testing fixture according to claim 1, characterized in that: A support frame (9) is provided on the outer surface of the cylinder (1), and the top of the support frame (9) is connected to the lower surface of the support flange (5).

3. The pot-type insulator hydrostatic testing fixture according to claim 1, characterized in that: The upper surface of the sealing cover plate (2) is also provided with a pressure gauge (10) and two symmetrical loading and unloading lifting parts (11).

4. The pot-type insulator hydrostatic testing fixture according to claim 1, characterized in that: A drain ball valve (12) is provided at the bottom of the cylinder (1).

5. The pot-type insulator hydrostatic testing fixture according to claim 1, characterized in that: The handle (403) and the lower support (404) are both U-shaped rods, and the two ends of the handle (403) and the lower support (404) are respectively connected to the filter plate (401) by two nuts.

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