Suspension type high voltage porcelain bottle box

Abstract

The utility model discloses a kind of suspension type high-voltage porcelain bottle boxes, including cylinder, baffle is fixed in the inside of cylinder, baffle upper surface is fixed with internal thread ring, the inside of cylinder is provided with porcelain bottle assembly, porcelain bottle assembly passes through the middle through-hole of baffle and internal thread ring, the outside of porcelain bottle assembly is fixed with circular cover plate, the lower surface of cover plate is fixed with external thread ring, external thread ring is connected on internal thread ring by screw thread, second sealing ring is arranged between cover plate and internal thread ring, the outside of cylinder lower part is fixed with jacket, electric heater is installed between cylinder and jacket, the inside wall of cylinder and located below baffle is fixed with multiple fins in annular array distribution;The high-voltage porcelain bottle box is cooperated by setting internal thread ring and external thread ring, only needs to rotate porcelain bottle assembly to be fixed to the baffle inside cylinder, the high-voltage porcelain bottle box is set in annular array distribution on the inside wall of cylinder Fin, can effectively improve the heating effect to the cavity environment of cylinder lower part.

Description

Technical Field

[0001] This utility model relates to the field of high-pressure porcelain insulator box technology, specifically a suspended high-pressure porcelain insulator box. Background Technology

[0002] In the operation of an electrostatic precipitator, the high-voltage porcelain insulator box is one of the core components ensuring its normal operation. It plays a crucial role in insulation and support, and its stable performance directly affects the efficient collection of tar and other impurities by the electrostatic precipitator, as well as the safety and reliability of the entire equipment operation. In traditional high-voltage porcelain insulator boxes, the high-voltage porcelain insulators inside usually require regular maintenance. However, existing high-voltage porcelain insulators are typically fixed to the internal partitions of the high-voltage porcelain insulator box with multiple bolts, which makes it very inconvenient for maintenance personnel to disassemble or install the high-voltage porcelain insulators later, greatly reducing maintenance efficiency. In addition, traditional high-voltage porcelain insulator boxes usually have a heating system to ensure that the high-voltage porcelain insulators inside are in a dry state. Existing high-voltage porcelain insulator boxes mainly heat the box body through an electric heater in the outer jacket, and then dissipate heat through the inner wall of the box, thereby achieving heating of the internal environment of the high-voltage porcelain insulator box, which has a poor heating effect.

[0003] Therefore, we have designed a suspended high-pressure porcelain insulator box to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of the existing technology by providing a suspended high-pressure ceramic insulator box to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a suspended high-pressure ceramic insulator box, comprising a cylindrical body, an annular partition fixed inside the cylindrical body, an internally threaded ring coaxially fixed on the partition, a ceramic insulator assembly disposed inside the cylindrical body, the ceramic insulator assembly passing through a through hole between the partition and the internally threaded ring, a circular cover plate fixed outside the ceramic insulator assembly, an externally threaded ring coaxially fixed below the cover plate, the externally threaded ring being threadedly connected to the internally threaded ring, a second sealing ring being disposed between the cover plate and the internally threaded ring, a jacket fixed on the lower outer side of the cylindrical body, an electric heater installed between the cylindrical body and the jacket, and multiple fins arranged in an annular array fixed on the inner sidewall of the cylindrical body below the partition.

[0006] As a preferred technical solution of this utility model, the porcelain bottle assembly consists of a pull rod, a base plate, a first sealing ring, a high-pressure porcelain bottle, an annular pressure plate, and a nut. The base plate is fixed to the lower part of the pull rod. The first sealing ring, the high-pressure porcelain bottle, and the annular pressure plate are sequentially fitted on the pull rod from bottom to top, located above the base plate. The upper part of the pull rod is provided with an external thread and connected to a nut, which is pressed on the annular pressure plate.

[0007] As a preferred embodiment of this utility model, the cover plate has a through hole in the middle, and the cover plate is fitted and fixed on the outside of the high-pressure porcelain bottle.

[0008] As a preferred embodiment of this utility model, the bottom end of the pull rod is hook-shaped.

[0009] As a preferred technical solution of this utility model, an oil drain port is provided on the side of the cylinder, the oil drain port is located above the partition plate, and a sealing cap is connected to the oil drain port by thread.

[0010] As a preferred embodiment of this utility model, the side of the cylinder is provided with an inspection port, which is located below the partition plate. A flange is provided on the inspection port and a first flange cover is installed by bolts.

[0011] As a preferred embodiment of this utility model, flanges are provided at both the top and bottom of the cylinder, and a second flange cover is installed on the flange at the top of the cylinder by bolts.

[0012] Compared with the prior art, this utility model provides a suspended high-pressure ceramic insulator box, which has the following beneficial effects: 1. This suspended high-voltage porcelain insulator box, by setting an internal threaded ring and an external threaded ring to cooperate, can be fixed to the partition plate inside the cylinder by simply rotating the porcelain insulator assembly. The operation is simple and quick, and it is convenient for maintenance personnel to disassemble or install later. In addition, the setting of the second sealing ring can improve the sealing between the cover plate and the internal threaded ring, which can effectively prevent the insulating oil in the upper part of the cylinder from leaking downward. 2. This suspended high-pressure porcelain insulator box can heat the cylinder by setting a jacket on the outside of the cylinder and setting an electric heater between the cylinder and the jacket. By setting fins arranged in a ring array on the inner side wall of the cylinder, the heat dissipation area of ​​the inner side wall of the cylinder can be effectively increased, improving the heating effect on the cavity environment in the lower part of the cylinder, ensuring that condensation is not easily generated in the lower part of the porcelain insulator assembly, thereby improving the stability of equipment operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the cylindrical body of this utility model; Figure 3 This is a schematic diagram of the ceramic bottle assembly structure of this utility model.

[0014] Reference numerals: 1. Cylinder; 2. Baffle plate; 3. Internal threaded ring; 4. Porcelain insulator assembly; 401. Tie rod; 402. Base plate; 403. First sealing ring; 404. High-pressure porcelain insulator; 405. Annular pressure plate; 406. Nut; 5. Cover plate; 6. External threaded ring; 7. Second sealing ring; 8. Jacket; 9. Electric heater; 10. Fin; 11. Oil drain port; 12. Inspection port; 13. Sealing cover; 14. First flange cover; 15. Second flange cover. Detailed Implementation

[0015] The technical solutions of the present 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 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.

[0016] Example 1: Please refer to Figures 1-3A suspended high-pressure porcelain insulator box includes a cylindrical body 1 made of high-strength metal material. An annular partition 2 is fixed inside the cylindrical body 1 by welding. An internally threaded ring 3, coaxial with the partition 2, is fixed on the partition 2 and connected to the partition 2 by welding. A porcelain insulator assembly 4 is installed inside the cylindrical body 1. The porcelain insulator assembly 4 consists of a pull rod 401, a base plate 402, a first sealing ring 403, a high-pressure porcelain insulator 404, an annular pressure plate 405, and a nut 406. The base plate 402 is fixed to the lower part of the pull rod 401 by welding. The first sealing ring 403, the high-pressure porcelain insulator 404, and the annular pressure plate 405 are sequentially fitted onto the pull rod 401 from bottom to top, located above the base plate 402. The upper part of the pull rod 401 is equipped with… The device has an external thread and is connected to a nut 406. The nut 406 presses against the annular pressure plate 405. By tightening the nut 406, components such as the high-pressure porcelain insulator 404 can be firmly fixed to the pull rod 401. The top of the pull rod 401 can be connected to a cable through a terminal block. A hole for the cable to pass through is provided on the side wall of the cylinder 1. The gap between the hole and the cable is sealed. The porcelain insulator assembly 4 passes through the middle through hole of the partition plate 2 and the internal threaded ring 3. The cover plate 5 has a through hole in the middle. The cover plate 5 is fitted and fixed to the outside of the high-pressure porcelain insulator 404 of the porcelain insulator assembly 4. The gap between the middle through hole of the cover plate 5 and the outside of the high-pressure porcelain insulator 404 is sealed. An external threaded ring 6 coaxial with it is fixed to the bottom of the cover plate 5 by welding. The external threaded ring 6 is threadedly connected to the internal threaded ring 3. The cover plate 5 is connected to the cylinder 1. A second sealing ring 7 is provided between the cover plate 5 and the internal threaded ring 3 to ensure the sealing of the connection. A jacket 8 is fixed to the lower outer side of the cylinder 1. The jacket 8 is connected to the cylinder 1 by welding. An electric heater 9 is installed between the cylinder 1 and the jacket 8. The electric heater 9 can be selected according to the actual needs of the appropriate model and specifications. It is used to heat the inside of the cylinder 1 in a low-temperature environment to prevent condensation on the high-pressure porcelain insulator 404 from affecting the operation of the equipment. Multiple fins 10 are fixed in a ring array on the inner wall of the cylinder 1 and below the partition plate 2. The fins 10 are fixed to the inner wall of the cylinder 1 by welding, which can increase the heat dissipation area and improve the heat dissipation efficiency. Insulating oil is provided in the upper cavity of the cylinder 1. Its function is to isolate the cylinder 1 from the high pressure. To prevent high-voltage breakdown, an oil drain port 11 is provided on the side of the cylinder 1, located above the partition plate 2. A sealing cap 13 is threaded onto the oil drain port 11 to facilitate the release of insulating oil from the upper cavity of the cylinder 1 when needed. An inspection port 12 is provided on the side of the cylinder 1, located below the partition plate 2. A flange is provided on the inspection port 12, and a first flange cover 14 is bolted to it for easy inspection and maintenance of the components inside the cylinder 1 located below the partition plate 2. Flanges are provided at both the top and bottom of the cylinder 1. A second flange cover 15 is bolted to the flange at the top of the cylinder 1 to seal the top of the cylinder 1. The bottom of the cylinder 1 can be mounted on the top of the electrostatic precipitator via a flange. The bottom end of the pull rod 401 of the porcelain insulator assembly 4 is hook-shaped.A hanger used to suspend the internal components of an electrostatic precipitator for tar removal.

[0017] Example 2: Based on Example 1, this example further optimizes the heating structure. A temperature sensor is installed inside the cylinder 1 and below the partition 2. A controller is set outside the cylinder 1 and connected to the temperature sensor and the electric heater 9. The temperature sensor is used to monitor the temperature in the lower cavity of the cylinder 1 in real time. When the temperature in the lower cavity of the cylinder 1 is lower than the set value, the temperature sensor transmits a signal to the controller. The controller controls the electric heater 9 to heat the lower cavity of the cylinder 1 to ensure that the high-pressure porcelain insulator 404 in the lower cavity of the cylinder 1 is in a dry state and to prevent condensation from appearing on it and affecting the normal operation of the equipment.

[0018] Example 3: In actual use, when maintenance is required on the suspended high-voltage porcelain insulator box, first remove the hanger suspended on the tie rod 401, then drain the insulating oil in the upper cavity of the cylinder 1 through the oil drain port 11, and then open the second flange cover 15 on the top of the cylinder 1 to expose the porcelain insulator assembly 4. By directly rotating the porcelain insulator assembly 4, the inner thread ring 3 and the outer thread ring 6 can be separated, so that maintenance personnel can disassemble the high-voltage porcelain insulator 404 from the cylinder 1 for maintenance.

[0019] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A suspended high-pressure ceramic insulator box, comprising a cylindrical body (1), characterized in that: The cylinder (1) has an annular partition (2) fixed inside. An internal threaded ring (3) coaxial with the partition (2) is fixed on the partition (2). A ceramic bottle assembly (4) is provided inside the cylinder (1). The ceramic bottle assembly (4) passes through the middle through hole of the partition (2) and the internal threaded ring (3). A circular cover plate (5) is fixed on the outside of the ceramic bottle assembly (4). An external threaded ring (6) coaxial with the cover plate (5) is fixed below the cover plate (5). The external threaded ring (6) is threadedly connected to the internal threaded ring (3). A second sealing ring (7) is provided between the cover plate (5) and the internal threaded ring (3). A jacket (8) is fixed on the lower outer side of the cylinder (1). An electric heater (9) is installed between the cylinder (1) and the jacket (8). Multiple fins (10) arranged in an annular array are fixed on the inner wall of the cylinder (1) and below the partition (2).

2. The suspended high-pressure porcelain insulator box according to claim 1, characterized in that: The porcelain bottle assembly (4) consists of a pull rod (401), a base plate (402), a first sealing ring (403), a high-pressure porcelain bottle (404), an annular pressure plate (405), and a nut (406). The base plate (402) is fixed to the lower part of the pull rod (401). The first sealing ring (403), the high-pressure porcelain bottle (404), and the annular pressure plate (405) are sequentially sleeved on the pull rod (401) and above the base plate (402) from bottom to top. The upper part of the pull rod (401) is provided with an external thread and connected to a nut (406). The nut (406) presses on the annular pressure plate (405).

3. A suspended high-pressure porcelain insulator box according to claim 2, characterized in that: The cover plate (5) has a through hole in the middle, and the cover plate (5) is fitted and fixed on the outside of the high-pressure porcelain bottle (404).

4. A suspended high-pressure porcelain insulator box according to claim 2, characterized in that: The bottom end of the pull rod (401) is hook-shaped.

5. A suspended high-pressure porcelain insulator box according to claim 1, characterized in that: The side of the cylinder (1) is provided with an oil drain port (11), which is located above the partition plate (2). A sealing cap (13) is connected to the oil drain port (11) by a thread.

6. A suspended high-pressure porcelain insulator box according to claim 1, characterized in that: The side of the cylinder (1) is provided with an inspection port (12), which is located below the partition (2). The inspection port (12) is provided with a flange and a first flange cover (14) is installed on it with bolts.

7. A suspended high-pressure porcelain insulator box according to claim 1, characterized in that: Flanges are provided at both the top and bottom of the cylinder (1), and a second flange cover (15) is installed on the flange at the top of the cylinder (1) by bolts.

Images