An auxiliary cooling type capacitor

Abstract

The utility model discloses an auxiliary cooling type capacitor, the part of water route copper pipe is arranged in the capacitor shell inside, makes the large amount of heat of capacitor electrode place can quickly conduct to the water route copper pipe place to utilize the cooling water of water route copper pipe in -flow and play better heat dissipation effect, and the overall structure is compact, and the sealing guarantee ability is strong. The main structure of the application includes capacitor shell and a plurality of capacitor electrode, still includes water route copper pipe and two copper pipe seat, and water route copper pipe includes two vertical pipe sections, two horizontal long pipe sections and a horizontal short pipe section, and copper pipe seat includes outer thread pipe, inner pressure seat and outer nut, and the sealed contact between inner pressure seat and shell top board inner surface, and the outer pressure ring of shell top board outer surface sealed contact is equipped with on outer thread pipe, and the outer pressure ring top surface is pressed tightly by outer nut, the outer thread pipe is sleeved on the vertical pipe section, and the vertical pipe section upper end protrudes out of the outer thread pipe, and the vertical pipe section passes through inner pressure seat, and the vertical pipe section and inner pressure seat between weld seal.

Description

Technical Field

[0001] This utility model belongs to the field of electrical and capacitor technology, and particularly relates to an auxiliary cooling capacitor. Background Technology

[0002] Capacitors play a crucial role in circuits for tuning, bypassing, coupling, and filtering. They are also a common electrical component in industrial production. High-voltage capacitors typically consist of an aluminum casing, a capacitor core, and several electrodes electrically connected to the core. Furthermore, because high-voltage capacitors usually generate a significant amount of heat, the casing is filled with insulating oil to ensure heat dissipation. In some applications, such as power plants and steel mills, copper cooling pipes are installed on the capacitor surface. The cooling water flowing through these pipes (usually shared with other equipment or furnaces due to cost considerations) indirectly dissipates heat from the capacitor. Utility Model Content

[0003] This utility model provides an auxiliary cooling capacitor, in which a portion of the water circuit copper pipe is placed inside the capacitor shell, allowing the large amount of heat generated at the capacitor electrodes to be quickly conducted to the water circuit copper pipe. This utilizes the cooling water flowing through the water circuit copper pipe to achieve a better heat dissipation effect. The overall structure is compact and has strong sealing protection capabilities.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An auxiliary cooling capacitor includes a capacitor housing and several capacitor electrodes. The capacitor housing includes a top plate, and the capacitor electrodes are disposed on the top plate and pass through the top plate.

[0006] It also includes a water pipe and two copper pipe seats. The water pipe includes two vertical pipe sections, two horizontal long pipe sections and one horizontal short pipe section. The copper pipe seat includes an externally threaded pipe that passes through the top plate of the shell, an inner pressure seat connected to the lower end of the externally threaded pipe, and an external nut that is threaded with the externally threaded pipe. The inner pressure seat is in sealed contact with the inner surface of the top plate of the shell. An external pressure ring is fitted on the externally threaded pipe and is in sealed contact with the outer surface of the top plate of the shell. The external nut presses against the top surface of the external pressure ring.

[0007] A vertical pipe section, a horizontal long pipe section, a horizontal short pipe section, another horizontal long pipe section, and another vertical pipe section are connected in sequence. The copper pipe seat corresponds to the vertical pipe section one by one. In the corresponding copper pipe seat and vertical pipe section: the external threaded pipe is sleeved outside the vertical pipe section, and the upper end of the vertical pipe section extends out of the external threaded pipe. The vertical pipe section passes through the inner pressure seat, and the vertical pipe section and the inner pressure seat are welded and sealed.

[0008] Preferably, the capacitor electrode passes through the top plate of the shell, and a number of insulating pressure plates are provided inside the capacitor shell. Each insulating pressure plate is fixed to at least one of the capacitor electrodes, and the insulating pressure plate contacts the bottom of the transverse long pipe section. The bottom of any transverse long pipe section contacts at least one insulating pressure plate.

[0009] Preferably, the distance between the transverse long tube section and the inner surface of the shell top plate gradually increases from the adjacent transverse short tube section to the direction away from the transverse short tube section, and the inner surface of the shell top plate, the transverse short tube section, the bottom surface of the insulating pressure plate and the lower end of the capacitor electrode are arranged sequentially from top to bottom.

[0010] Preferably, the externally threaded pipe is equipped with a three-way valve, which includes a valve core, an inlet pipe for connecting to a cooling water source, an outlet pipe for draining water, and a central pipe that is threadedly engaged with the externally threaded pipe.

[0011] On an externally threaded pipe:

[0012] The central tube and the external threaded tube are sealed together, and the central tube is equipped with a filter screen to prevent impurities.

[0013] When the connection between the central pipe and the inlet pipe is blocked by the valve core: the connection between the central pipe and the outlet pipe is maintained.

[0014] When the valve core blocks the connection between the central pipe and the outlet pipe, the central pipe is connected to the inlet pipe.

[0015] Preferably, the impurity filter is a soft mesh tube with one open end and the other closed end that can enter the vertical pipe section. The open end of the soft mesh tube is provided with an elastic opening ring, and the inner wall of the central tube is provided with a ring groove. The elastic opening ring is locked in the ring groove. On an externally threaded pipe, the upper end of the externally threaded pipe, the elastic opening ring and the upper end of the vertical pipe section are arranged from top to bottom in sequence.

[0016] The beneficial effects of this utility model are: by placing a portion of the water circuit copper pipe inside the capacitor shell, a large amount of heat generated at the capacitor electrodes can be quickly conducted to the water circuit copper pipe, thereby utilizing the cooling water flowing through the water circuit copper pipe to achieve a better heat dissipation effect. The overall structure is compact and has strong sealing capabilities. By using a three-way valve, the backwashing of the impurity filter can be achieved without stopping the auxiliary water cooling, ensuring the continuity of auxiliary heat dissipation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the top plate of the shell of this utility model;

[0019] Figure 3 This is a top view of the copper water pipe of this utility model;

[0020] Figure 4 This is a structural schematic diagram of Embodiment 2 of the present invention;

[0021] Figure 5 This is a structural schematic diagram of a three-way valve of this utility model;

[0022] Figure 6 This is a structural schematic diagram of a dirt-proof filter part of this utility model;

[0023] Figure 7 This is a structural schematic diagram of another impurity-proof filter section of this utility model.

[0024] Reference numerals in the attached drawings: 1. Capacitor housing; 101. Top plate of the housing; 2. Capacitor electrode; 2.1. Insulating pressure plate; 3. Copper tube seat; 301. External threaded tube; 302. Internal pressure seat; 303. External nut; 3.1. External pressure ring; 401. Vertical tube section; 402. Horizontal long tube section; 403. Horizontal short tube section; 501. Valve core; 502. Inlet pipe; 503. Outlet pipe; 504. Central tube; 6. Anti-impurity filter screen; 6.1. Elastic open ring. Detailed Implementation

[0025] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1: As Figure 1 , Figure 2 , Figure 3 As shown,

[0027] An auxiliary cooling capacitor includes a capacitor housing 1 and a plurality of capacitor electrodes 2. The capacitor housing 1 includes a top plate 101, and the capacitor electrodes 2 are disposed on the top plate 101 and pass through the top plate 101.

[0028] It also includes a water pipe and two copper pipe seats 3. The water pipe includes two vertical pipe sections 401, two horizontal long pipe sections 402 and one horizontal short pipe section 403. The copper pipe seat 3 includes an externally threaded pipe 301 that passes through the shell top plate 101, an inner pressure seat 302 connected to the lower end of the externally threaded pipe 301 and an external nut 303 that is threaded to the externally threaded pipe 301. The inner pressure seat 302 is in sealed contact with the inner surface of the shell top plate 101. An external pressure ring 3.1 that is in sealed contact with the outer surface of the shell top plate 101 is fitted on the externally threaded pipe 301. The external nut 303 presses the top surface of the external pressure ring 3.1.

[0029] A vertical pipe section 401, a horizontal long pipe section 402, a horizontal short pipe section 403, another horizontal long pipe section 402, and another vertical pipe section 401 are connected in sequence. The copper pipe seat 3 corresponds to the vertical pipe section 401 one by one. In the corresponding copper pipe seat 3 and vertical pipe section 401: the external threaded pipe 301 is sleeved on the outside of the vertical pipe section 401, and the upper end of the vertical pipe section 401 extends out of the external threaded pipe 301. The vertical pipe section 401 passes through the inner pressure seat 302, and the vertical pipe section 401 and the inner pressure seat 302 are welded and sealed.

[0030] The capacitor housing 1 is filled with insulating oil. A portion of the water circuit copper pipes (short horizontal pipe section 403 and two long horizontal pipe sections 402) are arranged inside the capacitor housing 1. Compared with the form in which the water circuit copper pipes are arranged on the outer surface of the capacitor housing 1, the auxiliary heat dissipation capacity is stronger, and it can specifically and quickly absorb the large amount of heat generated at the capacitor electrode 2, resulting in good heat dissipation effect.

[0031] The two vertical pipe sections 401 of the water pipe pass through the top plate 101 of the casing. The top plate 101 is usually made of aluminum, which makes it difficult to directly form a seal with the water pipe. In this solution, a copper pipe seat 3 structure is used, with an inner pressure seat 302 pressing against the inner surface of the top plate 101 and an outer nut 303 engaging with the threaded pipe thread, so that the inner pressure seat 302 can be pressed tightly against the top plate 101 to form a seal. In addition, the vertical pipe sections 401 are directly passed through the inner pressure seat 302, and the fact that both the vertical pipe sections 401 and the inner pressure seat 302 are made of copper is used for welding and sealing. The welded joint has good synchronous thermal expansion and contraction, making it less prone to cracking, which can better ensure the sealing effect and guarantee service life.

[0032] The capacitor electrode 2 passes through the top plate 101 of the shell. The capacitor shell 1 is provided with a plurality of insulating pressure plates 2.1. Each insulating pressure plate 2.1 is fixed to at least one of the capacitor electrodes 2. The insulating pressure plate 2.1 contacts the bottom of the transverse long tube section 402. The bottom of any transverse long tube section 402 contacts at least one insulating pressure plate 2.1.

[0033] The use of insulating pressure plate 2.1 to help limit and position the water circuit copper pipe (mainly to limit the transverse long pipe section 402) can prevent the water circuit copper pipe from being significantly deformed or displaced due to vibration, thermal expansion and contraction, and isolate it from other structures such as capacitor core.

[0034] The distance between the transverse long tube section 402 and the inner surface of the shell top plate 101 gradually increases along the direction from the adjacent transverse short tube section 403 to away from the transverse short tube section 403. The inner surface of the shell top plate 101, the transverse short tube section 403, the bottom surface of the insulating pressure plate 2.1 and the lower end of the capacitor electrode 2 are arranged sequentially from top to bottom.

[0035] The energy product of a capacitor, also known as energy density, is one of the important indicators for evaluating capacitor performance. It represents the electrical energy that a capacitor can store per unit volume. Simply put, the energy product is a comprehensive reflection of a capacitor's energy storage efficiency and space utilization. In electronic engineering, optimizing the energy product of capacitors is of great significance for improving circuit performance and reducing equipment size. In this scheme, the transverse long tube segment 402 is set in a form where one side is high and the other side is low, such as... Figure 2 As shown, the side closer to the vertical pipe section 401 is lower because the connection between the lower end of the vertical pipe section 401 and the horizontal long pipe section 402 requires a certain "turning space," and this point cannot be placed too close to the top plate 101. The side farther from the vertical pipe section 401 can be set higher, meaning the horizontal short pipe section 403 is closer to the top plate 101. Utilizing the space below the horizontal short pipe section 403 and the space below the side of the horizontal long pipe section 402 adjacent to the horizontal short pipe section 403, the insulating pressure plate 2.1 and electrode connectors (used for connection with the capacitor core) are arranged. Without affecting the overall height of the capacitor casing 1, the copper water pipes are rationally arranged, ensuring both energy efficiency and improved heat dissipation.

[0036] Example 2: Based on Example 1, such as Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown,

[0037] The external threaded pipe 301 is equipped with a three-way valve, which includes a valve core 501, an inlet pipe 502 for connecting to a cooling water source, an outlet pipe 503 for draining water, and a central pipe 504 that is threadedly engaged with the external threaded pipe 301.

[0038] On an externally threaded pipe 301:

[0039] The central tube 504 is sealed to the external threaded tube 301, and the central tube 504 is equipped with a filter screen 6 for preventing impurities.

[0040] When the connection between the central pipe 504 and the inlet pipe 502 is blocked by the valve core 501: the central pipe 504 and the outlet pipe 503 are connected;

[0041] When the connection between the central pipe 504 and the outlet pipe 503 is blocked by the valve core 501, the connection between the central pipe 504 and the inlet pipe 502 is established.

[0042] As mentioned earlier, in some situations, such as power plants and steel mills, due to cost considerations, the cooling water flowing through copper pipes is usually shared with the plant's equipment or furnaces. In many cases, this cooling water itself comes from open or semi-open water sources (such as water tanks located within the plant area), so there will inevitably be a lot of impurities in the cooling water. In view of this, a three-way valve is directly installed on the external threaded pipe 301. In this way, one three-way valve is set to "connect the central pipe 504 and the outlet pipe 503" (the vertical pipe section 401 connected by the central pipe 504 of this three-way valve is now the "vertical outlet copper pipe"), and the other three-way valve is set to "connect the central pipe 504 and the inlet pipe 502" (the vertical pipe section 401 connected by the central pipe 504 of this three-way valve is now the "vertical inlet copper pipe"). Then, impurities will gradually accumulate (get stuck, adhere to) on the impurity-proof filter screen 6 above the vertical inlet copper pipe.

[0043] After a period of time, the states of the two three-way valves are switched. The three-way valve that was originally connected between the central pipe 504 and the outlet pipe 503 is now connected between the central pipe 504 and the inlet pipe 502, and the three-way valve that was originally connected between the central pipe 504 and the inlet pipe 502 is now connected between the central pipe 504 and the outlet pipe 503. This is equivalent to swapping the vertical outlet copper pipe and the vertical inlet copper pipe, allowing backwashing of the impurity filter 6 above the vertical inlet copper pipe, removing most of the impurities accumulated on it. After another period of time, the states of the two three-way valves can be switched again, and this cycle continues. In this way, backwashing of the impurity filter 6 can be achieved without stopping the auxiliary water cooling, ensuring the continuity of auxiliary heat dissipation.

[0044] The impurity filter 6 is a soft mesh tube with one open end and the other closed end that can enter the vertical pipe section 401. The open end of the soft mesh tube is provided with an elastic opening ring 6.1. The inner wall of the central tube 504 is provided with a ring groove, and the elastic opening ring 6.1 is locked in the ring groove. On an externally threaded pipe 301, the upper end of the externally threaded pipe 301, the elastic opening ring 6.1 and the upper end of the vertical pipe section 401 are arranged from top to bottom in sequence.

[0045] In this plan, such as Figure 6 As shown, above the "vertical water inlet copper pipe", the closed end of the impurity filter 6 enters the "vertical water inlet copper pipe" (vertical pipe section 401). The inner diameter of the vertical pipe section 401 is relatively small, and the movement of the impurity filter 6 is relatively restricted. The impurity filter 6 normally plays a certain role in isolating impurities.

[0046] When the "vertical inlet copper pipe" is switched to the "vertical outlet copper pipe" (the three-way valve is set to "connect the center pipe 504 and the outlet pipe 503"), as follows: Figure 7As shown, the closed end of the impurity filter 6 is far from the "vertical outlet copper pipe". Since the closed end of the impurity filter 6 is located in the relatively spacious central pipe 504 (the inner diameter of the central pipe 504 is larger than the inner diameter of the vertical pipe section 401), the impurity filter 6 will swing more freely with the flow of cooling water. This allows the impurities accumulated on (stuck on, attached to) the impurity filter 6 to be better backwashed and thrown away, thus achieving faster cleaning of the impurity filter 6.

[0047] In addition, when it is necessary to replace the impurity filter 6, simply pull off the elastic open ring 6.1 (separating it from the ring groove) and then replace it with a new impurity filter 6.

[0048] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. An auxiliary cooling capacitor, comprising a capacitor housing and a plurality of capacitor electrodes, wherein the capacitor housing includes a top plate, the capacitor electrodes are disposed on the top plate, and the capacitor electrodes pass through the top plate; characterized in that... It also includes a water pipe and two copper pipe seats. The water pipe includes two vertical pipe sections, two horizontal long pipe sections and one horizontal short pipe section. The copper pipe seat includes an externally threaded pipe that passes through the top plate of the shell, an inner pressure seat connected to the lower end of the externally threaded pipe, and an external nut that is threaded with the externally threaded pipe. The inner pressure seat is in sealed contact with the inner surface of the top plate of the shell. An external pressure ring is fitted on the externally threaded pipe and is in sealed contact with the outer surface of the top plate of the shell. The external nut presses against the top surface of the external pressure ring. A vertical pipe section, a horizontal long pipe section, a horizontal short pipe section, another horizontal long pipe section, and another vertical pipe section are connected in sequence. The copper pipe seat corresponds to the vertical pipe section one by one. In the corresponding copper pipe seat and vertical pipe section: the external threaded pipe is sleeved outside the vertical pipe section, and the upper end of the vertical pipe section extends out of the external threaded pipe. The vertical pipe section passes through the inner pressure seat, and the vertical pipe section and the inner pressure seat are welded and sealed. The capacitor electrode passes through the top plate of the shell. Several insulating pressure plates are provided inside the capacitor shell. Each insulating pressure plate is fixed to at least one of the capacitor electrodes. The insulating pressure plate contacts the bottom of the transverse long tube section. The bottom of any transverse long tube section contacts at least one insulating pressure plate. The distance between the transverse long tube section and the inner surface of the shell top plate gradually increases from the adjacent transverse short tube section to the direction away from the transverse short tube section. The inner surface of the shell top plate, the transverse short tube section, the bottom surface of the insulating pressure plate and the lower end of the capacitor electrode are arranged from top to bottom in sequence. The externally threaded pipe is equipped with a three-way valve, which includes a valve core, an inlet pipe for connecting to a cooling water source, an outlet pipe for draining water, and a central pipe that is threadedly matched with the externally threaded pipe. On an externally threaded pipe: The central tube and the external threaded tube are sealed together, and the central tube is equipped with a filter screen to prevent impurities. When the connection between the central pipe and the inlet pipe is blocked by the valve core: the connection between the central pipe and the outlet pipe is maintained. When the valve core blocks the connection between the central pipe and the outlet pipe, the central pipe is connected to the inlet pipe. The impurity filter is a soft mesh tube with one open end and the other closed end that can enter the vertical pipe section. The open end of the soft mesh tube is provided with an elastic opening ring, and the inner wall of the central tube is provided with a ring groove. The elastic opening ring is locked in the ring groove. On an externally threaded pipe, the upper end of the externally threaded pipe, the elastic opening ring and the upper end of the vertical pipe section are arranged from top to bottom.

Images