Water-cooling heat dissipation gas-insulated switchgear
By designing a top cover and base structure on the gas-insulated cabinet, combined with a water-cooling device and a sensor system, the corrosion and overheating problems of the gas-insulated cabinet in high-temperature and high-humidity environments were solved, achieving equipment protection and stable operation.
Patent Information
- Application Number
- CN202422561683.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The service life of gas-insulated switchgear is affected by the high temperature and rainy environment in the south, especially by the corrosion caused by acidic rainwater and damage to internal components.
A water-cooled air-filled cabinet was designed, which uses a top cover and base structure to prevent rainwater from contacting it. Combined with a water-cooling device and a sensor system, it cools down the air and monitors environmental parameters through a water-cooling plate, and uses a wireless device to remotely monitor the status.
It effectively prevents corrosion, extends equipment life, maintains stability, and ensures normal operation of equipment in high temperature and high humidity environments.
Smart Images
Figure CN223797792U_ABST
Abstract
Description
Technical Field
[0001] This technical solution relates to the field of gas-insulated cabinet technology, specifically to a water-cooled gas-insulated cabinet. Background Technology
[0002] Gas-insulated switchgear is a new generation of switchgear. The main switch can be either a permanent magnet vacuum circuit breaker or a spring-mechanism vacuum circuit breaker. The entire cabinet combines air insulation with a sulfur hexafluoride gas compartment, making it both compact and expandable, suitable for power distribution automation. Gas-insulated switchgear features a compact structure, flexible operation, and reliable interlocking, making it suitable for various applications (especially harsh environments). The adoption of sensing technology and the latest protective relays, coupled with advanced technical performance and a lightweight and flexible assembly scheme, fully meets diverse user needs. Gas-insulated switchgear is suitable for small secondary substations, switching stations, prefabricated substations, residential areas, industrial and mining enterprises, and large shopping malls in power systems, and is particularly suitable for airports, subways, railways, and other applications with high power requirements. However, in southern regions where high temperatures and rainfall are common, the service life of gas-insulated switchgear can be significantly affected. Utility Model Content
[0003] This utility model provides a water-cooled gas-filled cabinet to solve one or more technical problems existing in the prior art, and at least provides a beneficial option or creates conditions.
[0004] A water-cooled heat dissipation inflatable cabinet is provided, comprising: an inflatable cabinet, a water-cooling device, a water-cooling plate, a top cover, and a base;
[0005] The air-filled cabinet is fixedly installed on top of the base by bolts, and the top cover is fixedly installed on top of the air-filled cabinet by bolts. The air-filled cabinet has a first through hole and a second through hole on its left side. The water-cooling device is installed on the left side of the air-filled cabinet, and the water-cooling plate is installed on the inner wall of the air-filled cabinet. The water outlet of the water-cooling device is connected to the water inlet of the water-cooling plate through the first through hole, and the water inlet of the water-cooling device is connected to the water outlet of the water-cooling plate through the second through hole.
[0006] Furthermore, the water-cooled plate includes a base plate, water-cooled pipes, and a fixing plate, wherein the water-cooled pipes are mounted on the base plate in an S-shape via the fixing plate.
[0007] Furthermore, the interior of the gas-filled cabinet is equipped with temperature and humidity sensors.
[0008] Furthermore, the water-cooling device is internally equipped with a water pump, a radiator, and a water storage tank. One end of the radiator is connected to the second through hole, and the other end of the radiator is connected to the inlet of the water storage tank. A liquid level sensor is installed inside the water storage tank to detect the volume of the coolant in the water storage tank. The inlet of the water pump is connected to the outlet of the water storage tank, and the outlet of the water pump is connected to the outlet of the water-cooling device.
[0009] Furthermore, the water-cooling device has an internal control module and an external display screen. The control module is connected to the display screen, a temperature sensor, a humidity sensor, a liquid level sensor, a radiator, and a water pump. The temperature sensor outputs temperature information, and the humidity sensor outputs humidity information. The control module controls the operation of the radiator and the water pump based on the temperature information. The display screen is used to display the temperature information, humidity information, the capacity of the coolant in the water tank, and the operating status of the water pump.
[0010] Furthermore, the water-cooling device is also equipped with a wireless device, which is connected to the control module. The wireless device is used to send the temperature and humidity of the gas-filled cabinet, the capacity of the coolant in the water storage tank, and the operating status of the water pump to the user terminal.
[0011] Furthermore, a glass panel is installed above the door of the gas chamber, allowing observation of the interior of the gas chamber through the glass.
[0012] Furthermore, the water-cooling device is provided with heat dissipation holes on the front and sides.
[0013] Furthermore, the cabinet door of the gas-filled cabinet is equipped with a sealing strip.
[0014] Furthermore, the interior of the gas-filled cabinet is equipped with moisture-proof blocks.
[0015] The beneficial effects of this utility model are: by installing a top cover on top of the gas-insulated cabinet, rainwater will not directly contact the cabinet; and by installing a base below the cabinet, accumulated water will not come into contact with it during rain, reducing the corrosive effects of the external environment and extending its service life. The water-cooling plate installed inside the cabinet lowers the operating temperature and improves its stability. This utility model is mainly used in the field of gas-insulated cabinet technology. Attached Figure Description
[0016] The accompanying drawings are provided to further understand the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this utility model to explain the technical solution of this utility model, and do not constitute a limitation on the technical solution of this utility model.
[0017] Figure 1 A schematic diagram of the front structure of a water-cooled gas-filled cabinet;
[0018] Figure 2 A schematic diagram of the water-cooling device structure for a water-cooled gas-filled cabinet.
[0019] Figure 3 This is a schematic diagram of the water-cooled plate structure of a water-cooled gas-filled cabinet. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.
[0021] refer to Figure 1 , Figure 2 and Figure 3 . Figure 1 This is a front structural diagram of a water-cooled gas-filled cabinet. Figure 2 This is a schematic diagram of the water-cooling device structure for a water-cooled gas-filled cabinet. Figure 3 This is a schematic diagram of the water-cooled plate structure of a water-cooled heat dissipation gas cabinet.
[0022] Gas-insulated switchgear is a new generation of switchgear. The main switch can be either a permanent magnet vacuum circuit breaker or a spring-mechanism vacuum circuit breaker. The entire cabinet combines air insulation with a sulfur hexafluoride gas compartment, making it both compact and expandable, suitable for power distribution automation. Gas-insulated switchgear features a compact structure, flexible operation, and reliable interlocking, providing satisfactory technical solutions for various applications (especially harsh environments) and different user requirements. The adoption of sensing technology and the latest protective relays, coupled with advanced technical performance and a lightweight and flexible assembly scheme, fully meets diverse user needs. Gas-insulated switchgear is suitable for small secondary substations, switching stations, prefabricated substations, residential areas, industrial and mining enterprises, and large shopping malls in power systems, and is particularly suitable for airports, subways, railways, and other applications with high power requirements.
[0023] Gas-insulated switchgear typically has a limited operating temperature range. Generally, the maximum operating temperature should not exceed 40 degrees Celsius, and the minimum temperature is limited to around -25 degrees Celsius. The ideal operating environment is one where the temperature does not exceed 35 degrees Celsius for 24 hours. Furthermore, the ambient temperature difference should not be too large, as excessive temperature differences may cause condensation on the surface or inside the gas-insulated switchgear, potentially leading to a short circuit.
[0024] A water-cooled heat dissipation inflatable cabinet is provided, including: inflatable cabinet 100, top cover 110, base 120, water cooling device 130 and water cooling plate.
[0025] To protect the gas holder from direct contact with rainwater during rainfall, in some further specific examples, a top cover 110 is bolted to the gas holder 100. The top cover 110 is a square pyramid; when rainwater falls on it, it flows down the slope of the pyramid without contacting the gas holder 100 or the water-cooling unit 130. Rainwater contains many naturally occurring acidic substances, such as carbon dioxide and potentially sulfuric acid (in areas with severe air pollution, rainwater may form acid rain by dissolving pollutants in the air). These acidic substances, upon contact with the equipment surface, may react with certain chemicals in the equipment materials, leading to corrosion.
[0026] For gas-insulated switchgear, the cabinet is typically made of metal, such as stainless steel or high-quality cold-rolled steel. Although these metal materials have a certain degree of corrosion resistance, corrosion can still occur when exposed to rain for extended periods. Corrosion can lead to rust and peeling on the equipment's surface, thus affecting its performance and lifespan. Furthermore, rainwater can seep into the equipment through gaps or joints, damaging internal components.
[0027] To prevent water from submerging the gas chamber, in some specific examples, a base 120 is bolted to the bottom of the gas chamber 100. The base is a truncated pyramid that elevates the gas chamber above ground level, preventing water accumulation from affecting its operation. Prolonged water accumulation can also cause continuous corrosion and damage to the gas chamber, shortening its lifespan. Chemicals in the moisture may react with internal metal components, causing rust, corrosion, or deformation, thus affecting the normal operation and stability of the equipment.
[0028] To prevent overheating of the gas-cooled cabinet during operation, in some specific embodiments, a water-cooling device 130 is installed on the side of the gas-cooled cabinet 100, and it is provided with a first through hole and a second through hole. A water-cooling plate is installed inside the gas-cooled cabinet 100, comprising a base plate 140, water-cooling pipes 141, and several fixing plates 142. The water-cooling pipes 141 are mounted on the base plate in an S-shape via the fixing plates 142. The outlet 144 of the water-cooling pipes 141 is connected to the first through hole, and the inlet 143 of the water-cooling pipes 141 is connected to the second through hole. The water-cooling device 130 is equipped with a water pump, a radiator, and a water storage tank. A liquid level sensor is installed in the water storage tank to detect the volume of the coolant in the tank. One end of the radiator is connected to the inlet of the water storage tank, and the other end is connected to the first through hole. The inlet of the water pump is connected to the outlet of the water storage tank, and the outlet of the water pump is connected to the outlet of the water-cooling device 130.
[0029] The working principle of a water-cooling system is primarily based on the thermal conductivity of water. Specifically, a water-cooling system consists of a water pump, water tank, radiator, water pipes, and water cooling heads. When the water chiller starts working, the water pump first activates, generating pressure to propel the water through the circulation system. Water flows from the water cooling head through the water pipes into the radiator. During this process, the water absorbs the heat generated by the equipment. As the water flows into the radiator, the fan inside the radiator starts working, blowing air across the radiator surface, rapidly dissipating the heat from the radiator into the air. After being cooled by the radiator, the water temperature decreases, and it then flows back to the water cooling head, thus completing the cycle.
[0030] To monitor the operating status of the gas-cooled cabinet, in some specific examples, the gas-cooled cabinet 100 is equipped with a temperature sensor and a humidity sensor, the water-cooling device 130 has a control module inside, and the water-cooling device 100 has a display screen 131 on its exterior. The control module is connected to the display screen 131, the temperature sensor, the humidity sensor, the liquid level sensor, and the water pump. The temperature sensor outputs temperature information, the humidity sensor outputs humidity information, and the control module controls the water pump based on the temperature information. The display screen 131 displays the temperature information, humidity information, the capacity of the coolant in the water tank, and the operating status of the water pump.
[0031] In order to remotely monitor the operating status of the gas-insulated cabinet, in some further specific examples, a wireless device is also installed in the water-cooling device 130. The wireless device is connected to the control module and is used to send the temperature, humidity, coolant capacity in the water tank, and water pump operating status of the gas-insulated cabinet 100 to the user terminal.
[0032] The gas chamber 100 has a glass panel on its door for easy monitoring of its internal operation, allowing observation without opening the door. Sealing strips are installed around the door for enhanced sealing. A moisture-proof block is installed inside the gas chamber 100 to absorb any infiltrated moisture, ensuring its normal operation. The moisture-proof block contains a solid desiccant, also known as a solid desiccant, which absorbs water vapor from the air. Common solid desiccants include silica gel, calcium chloride, and montmorillonite.
[0033] Although the description of this application has been quite detailed and particularly focused on the described embodiments, it is not intended to limit itself to any of these details or embodiments or any particular embodiment, but should be considered as effectively covering the intended scope of this application by referring to the appended claims and taking into account the prior art to provide a broad possible interpretation of these claims. Furthermore, the foregoing description of this application with respect to embodiments foreseeable by the inventors is intended to provide a useful description, and non-substantial modifications to this application that have not yet been foreseen may still represent equivalent modifications.
Claims
1. A water-cooled gas-filled cabinet, characterized in that, Includes: gas-filled cabinet, water-cooling unit, water-cooling plate, top cover and base; The air-filled cabinet is fixedly installed on the top of the base by bolts, and the top cover is fixedly installed on the top of the air-filled cabinet by bolts. The air-filled cabinet has a first through hole and a second through hole on its left side. The water-cooling device is installed on the left side of the gas-filling cabinet, the water-cooling plate is installed on the inner wall of the gas-filling cabinet, the water outlet of the water-cooling device is connected to the water inlet of the water-cooling plate through a first through hole, and the water inlet of the water-cooling device is connected to the water outlet of the water-cooling plate through a second through hole. The water-cooling device is internally equipped with a water pump, a radiator, and a water storage tank. One end of the radiator is connected to a second through hole, and the other end of the radiator is connected to the inlet of the water storage tank. A liquid level sensor is installed inside the water storage tank to detect the volume of the coolant in the tank. The inlet of the water pump is connected to the outlet of the water storage tank, and the outlet of the water pump is connected to the outlet of the water-cooling device.
2. The water-cooled heat dissipation gas-filled cabinet according to claim 1, characterized in that, The water-cooled plate includes a base plate, water-cooled pipes, and a fixing plate. The water-cooled pipes are mounted on the base plate in an S-shape via the fixing plate.
3. The water-cooled heat dissipation gas-filled cabinet according to claim 1, characterized in that, The gas-filled cabinet is equipped with temperature and humidity sensors.
4. The water-cooled heat dissipation gas-filled cabinet according to claim 1, characterized in that, The water-cooling device has an internal control module and an external display screen. The control module is connected to the display screen, a temperature sensor, a humidity sensor, a liquid level sensor, a radiator, and a water pump. The temperature sensor outputs temperature information, and the humidity sensor outputs humidity information. The control module controls the operation of the radiator and the water pump based on the temperature information. The display screen is used to display temperature information, humidity information, the capacity of the coolant in the water tank, and the operating status of the water pump.
5. The water-cooled heat dissipation gas-filled cabinet according to claim 1, characterized in that, The water-cooling device is also equipped with a wireless device, which is connected to the control module. The wireless device is used to send the temperature and humidity of the gas-filled cabinet, the capacity of the coolant in the water storage tank, and the operating status of the water pump to the user terminal.
6. The gas-filled cabinet with water cooling according to claim 1, characterized in that, A glass panel is installed above the door of the gas chamber, allowing observation of the interior of the gas chamber.
7. The water-cooled heat dissipation gas-filled cabinet according to claim 1, characterized in that, The water-cooling device has heat dissipation holes on its front and sides.
8. The water-cooled heat dissipation gas-filled cabinet according to claim 1, characterized in that, The gas-filled cabinet door is equipped with a sealing strip.
9. A water-cooled gas-filled cabinet according to claim 1, characterized in that, The interior of the gas-filled cabinet is equipped with moisture-proof blocks.