Circulating heat dissipation system

Abstract

The utility model discloses a circulating heat dissipation system, which relates to the technical field of submerged arc furnaces and comprises a low-voltage reactive power compensation device, an air cooling device, a water cooling device and a guide air bellow. Wherein the low-voltage reactive power compensation device is in sealed communication with the air cooling device, the air cooling device is in sealed communication with the water cooling device through the guide air box, and the water cooling device is in sealed communication with the low-voltage reactive power compensation device, so that the air cooling device cools hot air in the low-voltage reactive power compensation device for the first time and conveys the hot air into the guide air box; the guiding bellows enables the gas conveyed by the air cooling device to enter the water cooling device more uniformly and stably, secondary cooling is completed in the water cooling device, and finally the water cooling device inputs the gas subjected to secondary cooling into the low-voltage reactive power compensation device again. Through the arrangement, hot air generated by the low-voltage reactive power compensation device can be subjected to circulating air cooling and water cooling, the cooling efficiency is improved, and meanwhile, the phenomenon of dust diffusion is avoided through air internal circulation.

Description

Technical Field

[0001] The utility model relates to the technical field of submerged arc furnaces, and particularly relates to a circulating heat dissipation system. Background Art

[0002] Submerged arc furnaces are mainly used for reducing and smelting ores. To solve the problems of low power factor and three-phase balance of submerged arc furnaces, low-voltage reactive power compensation devices are usually integrated into newly built submerged arc furnaces. However, since a large amount of heat is generated when the low-voltage reactive power compensation device operates, if the temperature is not lowered in time, problems such as high internal temperature of the equipment, conductor heating, and reduced current-carrying capacity will occur. Therefore, a cooling system needs to be added to cool the low-voltage reactive power compensation device. The traditional cooling method generally uses a fan to extract the heat inside the device, that is, the forced air cooling method is used for cooling. However, this method has problems such as dust diffusion and low cooling efficiency.

[0003] In view of this, it is necessary to propose a circulating heat dissipation system to solve or at least alleviate the above technical problems. Summary of the Utility Model

[0004] The main object of the utility model is to propose a circulating heat dissipation system, aiming to solve the technical problems of low cooling efficiency and dust diffusion during the heat dissipation of the low-voltage reactive power compensation device.

[0005] To achieve the above object, the utility model proposes a circulating heat dissipation system, including:

[0006] A low-voltage reactive power compensation device;

[0007] A water cooling device;

[0008] An air cooling device, the air cooling device is communicated with the water cooling device through a guiding air box, the air cooling device is used to extract the hot air of the low-voltage reactive power compensation device and convey it to the water cooling device through the guiding air box, and the water cooling device is communicated with the low-voltage reactive power compensation device to re-convey the cooled gas to the low-voltage reactive power compensation device;

[0009] The low-voltage reactive power compensation device is hermetically connected to the air cooling device, the air cooling device is hermetically connected to the water cooling device through the guiding air box, and the water cooling device is hermetically connected to the low-voltage reactive power compensation device.

[0010] In an embodiment, the low-voltage reactive power compensation device at least includes a first cabinet and a second cabinet, the first cabinet is placed on one side of the second cabinet, and the air cooling device is arranged on the other side;

[0011] Both the first cabinet and the second cabinet are communicated with the air cooling device;

[0012] A first opening plate is provided at the top of the first cabinet body, and a second opening plate is provided at the top of the second cabinet body. A first opening is formed in the first opening plate, and a second opening is formed in the second opening plate. The first opening is used for the hot air in the first cabinet body to pass through, and the second opening is used for the hot air in the second cabinet body to pass through. The density of the first opening is greater than that of the second opening.

[0013] In one embodiment, the air-cooling device includes a fan and a chassis, and the fan is hermetically installed inside the chassis.

[0014] In one embodiment, the water-cooling device is communicated with the low-voltage reactive power compensation device through a shock-absorbing member, and the shock-absorbing member is used for absorbing the vibrations generated by the low-voltage reactive power compensation device and the air-cooling device.

[0015] In one embodiment, the shock-absorbing member includes a flange flexible joint.

[0016] In one embodiment, the water-cooling device includes a water tank and a heat exchange tube. The heat exchange tube is arranged inside the water tank. One end of the heat exchange tube is communicated with the guiding air box, and the other end is connected to the shock-absorbing member.

[0017] In one embodiment, a drain pipe is communicated and arranged at the lower end of the water tank, and a valve is installed on the drain pipe.

[0018] In one embodiment, the guiding air box includes a guiding plate, and the guiding plate is inclined to deflect the air flow input from the air-cooling device into the guiding air box into the water-cooling device.

[0019] In one embodiment, the low-voltage reactive power compensation device is communicated with the air-cooling device through a heat dissipation air duct. The heat dissipation air duct is used for the hot air in the low-voltage reactive power compensation device to pass through, and the hot air can exchange heat with the outside air through the heat dissipation air duct.

[0020] In one embodiment, a plurality of heat dissipation blocks are arranged on the outer side of the heat dissipation air duct.

[0021] In the technical solution of the present utility model, the circulating heat dissipation system includes the low-voltage reactive power compensation device, the air-cooling device and the water-cooling device. Among them, the air-cooling device is communicated with the low-voltage reactive power compensation device, the air-cooling device and the water-cooling device are communicated through the guiding air box, and the water-cooling device is communicated with the low-voltage reactive power compensation device. At the same time, the low-voltage reactive power compensation device is hermetically connected to the air-cooling device, the air-cooling device and the water-cooling device are hermetically connected through the guiding air box, and the water-cooling device is hermetically connected to the low-voltage reactive power compensation device. In this way, the air-cooling device extracts the hot air of the low-voltage reactive power compensation device and transports it to the water-cooling device through the guiding air box. The water-cooling device cools the hot air and then transports it back to the low-voltage reactive power compensation device to cool down the low-voltage reactive power compensation device. By using the air-cooling device and the water-cooling device to cool the hot air at the same time, the heat dissipation efficiency of the low-voltage reactive power compensation device is improved. In addition, since all components of the circulating heat dissipation system are hermetically connected and there is no need to discharge gas to the outside, the surrounding dust will not be dispersed, avoiding the diffusion of dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0023] Figure 1 It is a schematic structural diagram of an embodiment of the circulating heat dissipation system provided by the present utility model;

[0024] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0025] Figure 3 It is a schematic structural diagram of the opening plate at the top of the low-voltage reactive power compensation device in an embodiment of the circulating heat dissipation system provided by the present utility model.

[0026] Explanation of the reference numerals in the drawings:

[0027] 100, circulating heat dissipation system; 1, heat dissipation air duct; 2, low-voltage reactive power compensation device; 21, start cabinet; 22, start side cabinet; 23, intermediate cabinet; 24, end side cabinet; 25, end cabinet; 3, air-cooling device; 31, fan; 32, chassis; 4, guiding air box; 5, water-cooling device; 6, shock absorber; 6a, flange flexible joint.

[0028] The realization, functional features, and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present utility model, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution that satisfies both A and B at the same time. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0032] A submerged arc furnace is a high-temperature furnace for industrial use, mainly used for smelting ores, especially for producing ferroalloys and non-ferrous metals. It heats the ores and other raw materials by using electric arcs to reach the molten or semi-molten state, thereby extracting metals or producing metal compounds. Submerged arc furnaces are widely used in the iron and steel industry, non-ferrous metal industry, and chemical industry, and are an indispensable equipment in the metal smelting process. Low-voltage reactive power compensation devices play an important role in the power system of submerged arc furnaces. They are mainly used to improve the power factor of the power system, reduce the consumption of reactive power, thereby improving the utilization efficiency of electric energy and reducing energy costs. In addition, reactive power compensation devices can also reduce line losses and improve the stability and reliability of the power grid. However, the on-site operating environment of submerged arc furnace smelting is generally relatively harsh, belonging to a high-temperature and highly polluted operating environment. Low-voltage reactive power compensation devices may encounter heat dissipation problems during long-term operation. If the heat dissipation is poor, it may cause the equipment to overheat, affect its performance and lifespan, and even may lead to safety accidents. Therefore, solving the heat dissipation problem of low-voltage reactive power compensation devices is the key to ensuring the stable operation of submerged arc furnaces.

[0033] Currently, the traditional cooling method for low-voltage reactive power compensation devices is generally to use a fan to extract the heat inside the device, that is, to use forced air cooling for cooling. However, according to the applicant's observation and research, when using the forced air cooling method to cool the low-voltage reactive power compensation device, due to the power limitation of the fan, the cooling efficiency is low, and moreover, since the on-site operating environment of submerged arc furnace smelting is generally relatively harsh, when the fan discharges the gas in the low-voltage reactive power compensation device, it will blow up the surrounding dust, causing the problem of dust diffusion.

[0034] In view of this, the present utility model proposes a circulating heat dissipation system 100 to solve the above technical problems.

[0035] Please refer to Figure 1 With Figure 2 , in an embodiment of the present utility model, the circulating heat dissipation system 100 includes a low-voltage reactive power compensation device 2, a water cooling device 5, an air cooling device 3, and a guiding air box 4. Among them, the air cooling device 3 is connected to the water cooling device 5 through the guiding air box 4. The air cooling device 3 is used to extract the hot air of the low-voltage reactive power compensation device 2 and transport it to the water cooling device 5 through the guiding air box 4. The water cooling device 5 is connected to the low-voltage reactive power compensation device 2 to re-transport the cooled gas into the low-voltage reactive power compensation device 2; at the same time, the low-voltage reactive power compensation device 2 is hermetically connected to the air cooling device 3, the air cooling device 3 is hermetically connected to the water cooling device 5 through the guiding air box 4, and the water cooling device 5 is hermetically connected to the low-voltage reactive power compensation device 2.

[0036] Specifically, in this embodiment, the low-voltage reactive power compensation device 2 is first connected to the air-cooling device 3, the air-cooling device 3 is connected to the guiding air box 4, the guiding air box 4 is then connected to the water-cooling device 5, and finally the water-cooling device 5 is connected to the low-voltage reactive power compensation device 2. Among them, the air-cooling device 3 is the power source for the gas circulation in the circulating cooling system 100, and is used to push the gas in the circulating cooling system 100 to circulate between various parts. When the circulating cooling system 100 is working, due to the influence of the environment and the operation of the equipment, the internal temperature of the low-voltage reactive power compensation device 2 gradually rises. The air-cooling device 3 sucks out the hot air inside it through connection with the low-voltage reactive power compensation device 2 and conducts preliminary cooling. The guiding air box 4 can make the distribution of the air flow more uniform, ensuring the stable and efficient flow of the air flow. The hot air after preliminary cooling enters the guiding air box 4, and the guiding air box 4 evenly guides the hot air into the water-cooling device 5. The water-cooling device 5 conducts secondary cooling on the hot air to cool the hot air. Subsequently, the cooled gas re-enters the low-voltage reactive power compensation device 2 from the water-cooling device 5, completing one cycle of the gas in the circulating cooling system 100. Driven by the air-cooling device 3, the gas in the circulating cooling system 100 continuously circulates between various parts, and finally achieves the effect of continuous cooling. It should be noted that the low-voltage reactive power compensation device 2 in the circulating cooling system 100 is a prior art. In this embodiment, the low-voltage reactive power compensation device 2 includes at least one of the SNTA1006 type, the ANAPF 100-380 type, and the AWIMD series. Its specific functions will not be elaborated here, and its design needs to meet the relevant regulations in the "Technical Specification for Low-voltage Reactive Power Compensation of Submerged Arc Furnaces" (YBT 4268-2020).

[0037] In the embodiment provided by the present utility model, the circulating heat dissipation system 100 includes a low-voltage reactive power compensation device 2, an air-cooling device 3, a water-cooling device 5 and a guiding air box 4. Among them, the low-voltage reactive power compensation device 2 is communicated with the air-cooling device 3, so that the air-cooling device 3 extracts the hot air generated in the low-voltage reactive power compensation device 2 and conducts preliminary cooling. The air-cooling device 3 is communicated with the water-cooling device 5 through the guiding air box 4, so as to uniformly and stably convey the preliminarily cooled gas into the water-cooling device 5 and the water-cooling device 5 conducts secondary cooling on the gas. The water-cooling device 5 is communicated with the low-voltage reactive power compensation device 2, so that the gas after secondary cooling is re-conveyed into the low-voltage reactive power compensation device 2. In this way, through the combined action of the air-cooling device 3, the guiding air box 4 and the water-cooling device 5, the gas can flow smoothly in the water-cooling device 5, and the gas can be cooled twice, thereby improving the cooling efficiency. At the same time, the low-voltage reactive power compensation device 2 is hermetically connected to both the air-cooling device 3 and the water-cooling device 5, and the air-cooling device 3 and the water-cooling device 5 are hermetically connected through the guiding air box 4, so that the whole circulating heat dissipation system 100 is in a sealed state, and the gas in the circulating heat dissipation system 100 only circulates inside, thereby avoiding the situation of discharging gas to the outside, and further avoiding the phenomenon of dust diffusion caused by exhaust gas.

[0038] Further, the low-voltage reactive power compensation device 2 at least includes a first cabinet body and a second cabinet body. The first cabinet body is placed on one side of the second cabinet body, and an air-cooling device 3 is arranged on the other side. Both the first cabinet body and the second cabinet body are communicated with the air-cooling device 3. Among them, a first opening plate is arranged on the top of the first cabinet body, and a second opening plate is arranged on the top of the second cabinet body. A first opening is formed in the first opening plate, and a second opening is formed in the second opening plate. The first opening is used for the hot air in the first cabinet body to pass through, and the second opening is used for the hot air in the second cabinet body to pass through. The density of the first opening is greater than that of the second opening. Specifically, the low-voltage reactive power compensation device 2 at least includes two cabinet bodies, and corresponding opening plates are respectively arranged on the top of each cabinet body. Openings are formed in the opening plates. The tops of the respective cabinet bodies are communicated with the air-cooling device 3 through pipelines. The pipelines include a main pipeline and branch pipelines. The branch pipelines are connected to the tops of the respective cabinet bodies, and the main pipeline is communicated with each branch pipeline. Under the suction action of the air-cooling device 3, the hot air in each cabinet body enters each branch pipeline through the openings and enters the air-cooling device 3 through the main pipeline. However, the farther away from the air-cooling device 3, the smaller the suction force in the pipeline, the smaller the air outlet volume in the corresponding cabinet body, and the worse the cooling effect. Therefore, in order to ensure that the air outlet volumes of the respective cabinet bodies are roughly the same, the opening densities of the opening plates on the tops of the respective cabinet bodies are all different. The specific setting is related to the placement position of the air-cooling device 3. If the air-cooling device 3 is placed on one side of the low-voltage reactive power compensation device 2, denoted as the air-cooling side, then the distribution rule of the opening densities of the opening plates on the tops of the respective cabinet bodies is: the closer to the air-cooling side, the smaller the opening density of the opening plate. For example, the low-voltage reactive power compensation device 2 is provided with two cabinet bodies, namely a first cabinet body and a second cabinet body. The first cabinet body and the second cabinet body are respectively provided with a first opening plate and a second opening plate at the top. The first cabinet body is arranged on one side of the second cabinet body, and the air-cooling device 3 is arranged on the other side of the second cabinet body. Then the density of the openings on the first opening plate is greater than that of the openings on the second opening plate.

[0039] In an embodiment of the present invention, please refer to Figure 1 With Figure 3, the low-voltage reactive power compensation device 2 includes five cabinets, which are, according to the distance from the air-cooling device 3, the starting cabinet 21, the starting side cabinet 22, the intermediate cabinet 23, the ending side cabinet 24, and the ending cabinet 25. The air-cooling device 3 is arranged on the outer side of the ending cabinet 25 away from the ending side cabinet 24. On the top of each cabinet, there is an opening plate provided with openings for the hot air in each cabinet to pass through. The opening density of the openings on the top of each cabinet is different. The starting cabinet 21 is the farthest from the air-cooling device 3, and the opening density of the opening plate on its top is the largest. The ending cabinet 25 is the closest to the air-cooling device 3, and the opening density of the opening plate on its top is the smallest. From the starting cabinet 21 to the ending cabinet 25, the opening density of the corresponding opening plates of each cabinet gradually decreases. Through this setting, the air outlet volume in each cabinet can be kept roughly the same. Since the air outlet volume in each cabinet is roughly the same, the air inlet volume in each cabinet is also kept roughly the same, so that the cooling effect in each cabinet is roughly the same, avoiding the problem that one or more cabinets in the low-voltage reactive power compensation device 2 are overheated while the other cabinets are overcooled. Taking this embodiment as an example, the principle to achieve this effect is as follows: Due to the influence of factors such as frictional loss, dynamic head loss, and local resistance, the suction force received by the top of the cabinet farther away from the air-cooling device 3 is smaller, and the gas exchange volume is also smaller. While the cabinet closer to the air-cooling device 3 receives a greater suction force and has a larger gas exchange volume. If the opening density of the opening plates set on the top of each cabinet is the same, the gas exchange volume of the cabinet farther away from the air-cooling device 3 is smaller, and the cooling effect is worse. That is to say, if the opening density of the top of the starting cabinet 21 to the ending cabinet 25 is the same, the gas exchange volume in the starting cabinet 21 is the smallest, and the cooling effect is also the worst, while the gas exchange volume in the ending cabinet 25 is the largest, and there is even redundancy in the cooling effect brought by the gas exchange. Therefore, increasing the opening density of the opening plate on the top of the starting cabinet 21 and decreasing the opening density of the opening plate on the top of the ending cabinet 25, and the opening density of the opening plates on the tops of the starting side cabinet 22, the intermediate cabinet 23, and the ending side cabinet 24 decreases in turn. In this way, the gas exchange volume of the starting cabinet 21 can be increased to improve the cooling effect, and the gas exchange volume of the ending cabinet 25 can be reduced to facilitate the distribution of its redundant gas exchange volume to the other cabinets. Through this setting, the gas exchange volume in each cabinet can be kept basically the same, and the cooling effect in each cabinet is also basically kept consistent, thus avoiding the situation where the cooling effect of the starting cabinet 21 and the starting side cabinet 22 is poor.

[0040] Please refer to Figure 1, in an embodiment of the present utility model, the air-cooling device 3 includes a fan 31 and a chassis 32, and the fan 31 is sealed and installed inside the chassis 32. To ensure the sealing of the circulating cooling system 100, the fan 31 is sealed and installed inside the chassis 32. One end of the chassis 32 is connected to the low-voltage reactive power compensation device 2, and the other end is connected to the guiding air box 4, so as to facilitate the fan 31 to push the gas in the circulating cooling system 100 to flow. At the same time, the fan 31 is sealed and installed in the chassis 32, which can effectively isolate the external environment, reduce the pollution of the internal gas, increase the aesthetics, make the whole air-cooling device 3 cleaner, and can reduce the influence of the external environment on the internal mechanical structure, improving the stability and reliability of the system.

[0041] In an embodiment of the present utility model, the water-cooling device 5 is connected to the low-voltage reactive power compensation device 2 through a shock absorber 6, and the shock absorber 6 is used to absorb the vibrations generated by the low-voltage reactive power compensation device 2 and the air-cooling device 3. Please refer to Figure 1 , the shock absorber 6 is arranged between the low-voltage reactive power compensation device 2 and the water-cooling device 5, and the shock absorber 6 is hermetically connected to both of them. The gas cooled by the water-cooling device 5 is input into the low-voltage reactive power compensation device 2 through the shock absorber 6. The shock absorber 6 can absorb the vibrations generated during the operation of the low-voltage reactive power compensation device 2. At the same time, the air-cooling device 3 will generate certain vibrations during operation, and the shock absorber 6 can also absorb the vibrations transmitted from the air-cooling device 3 to the water-cooling device 5. Through this setting, the resonance phenomenon between the low-voltage reactive power compensation device 2 and the water-cooling device 5 can be avoided, thereby avoiding damaging the sealing of the circulating cooling system 100 due to the resonance phenomenon, and at the same time, the excessive noise can be avoided from affecting the comfort of the working environment.

[0042] Furthermore, in an embodiment of the present utility model, the shock absorber 6 includes a flange flexible joint 6a. The flange flexible joint 6a includes an elastic body, and the elastic body can be a rubber body. The rubber body is hollow inside for fluid passage, and due to the material characteristics of the rubber body, it can absorb the vibrations transmitted from the water-cooling device 5 and the low-voltage reactive power compensation device 2, avoiding resonance between the water-cooling device 5 and the low-voltage reactive power compensation device 2. Two connecting flanges are installed at the two ends of the rubber body respectively, and the two connecting flanges are respectively connected to the water-cooling device 5 and the low-voltage reactive power compensation device 2, so that the gas in the water-cooling device 5 can enter the shock absorber 6 and then enter the low-voltage reactive power compensation device 2 through the shock absorber 6.

[0043] In an embodiment of the present utility model, the water cooling device 5 includes a water tank and a heat exchange tube. The heat exchange tube is disposed inside the water tank. One end of the heat exchange tube is communicated with the guiding air box 4, and the other end is connected to the shock absorber 6. A sufficient amount of water is contained in the water tank, and the heat exchange tube is immersed in the water to complete the heat exchange between the gas in the heat exchange tube and the water. The guiding air box 4 and the shock absorber 6 are respectively connected to both ends of the heat exchange tube. After the gas in the guiding air box 4 enters the heat exchange tube, as the gas flows in the heat exchange tube, the gas can exchange heat with the water through the tube wall of the heat exchange tube, transfer the heat in the gas to the water, and achieve the purpose of cooling. The cooled gas enters the shock absorber 6 and then enters the low-voltage reactive power compensation device 2 through the shock absorber 6.

[0044] Further, a drain pipe is communicatively provided at the lower end of the water tank, and a valve is installed on the drain pipe. When the temperature of the water in the water tank is relatively high, the cooling effect of the water cooling device 5 becomes poor. At this time, the water in the water tank needs to be replaced. When replacing the water, only need to turn on the valve on the drain pipe to drain the water, and turn off the valve on the drain pipe to inject water into the water tank again. Through this setting, the water replacement operation is more efficient and convenient to operate.

[0045] In an embodiment of the present utility model, the guiding air box 4 includes a guiding plate, and the guiding plate is inclined to deflect the air flow input from the air cooling device 3 to the guiding air box 4 into the water cooling device 5. Among them, the inclination direction of the guiding plate depends on the installation positions of the air cooling device 3 and the water cooling device 5, that is, the guiding plate needs to face the air outlet of the air cooling device 3 and the air inlet of the water cooling device 5 at the same time. For example, in this embodiment, the air cooling device 3 is installed above the guiding air box 4, and the water cooling device 5 is installed on the left side of the guiding air box 4. At this time, the inclination direction of the guiding plate is: inclined from the side far away from the water cooling device 5 to the side close to the water cooling device 5, that is, the farther away from the water cooling device 5, the higher the height of the guiding plate. In this way, the guiding plate can face the air outlet of the air cooling device 3 and the air inlet of the water cooling device 5 at the same time. When the air cooling device 3 conveys the gas to the guiding air box 4, the guiding plate receives the air flow and deflects the air flow, so that the originally downward flowing air flow is deflected into an air flow flowing towards the water cooling device 5. And because the guiding plate is inclined, the deflected air flow is relatively uniform and stable when entering the air inlet of the water cooling device 5, which is beneficial to improving the cooling efficiency; on the other hand, this setting also avoids the phenomena of local hot spots and eddy currents in the guiding air box 4, and avoids the air flow disorder caused by the existence of local hot spots or eddy currents, thereby further improving the cooling efficiency.

[0046] In an embodiment of the present utility model, a low-voltage reactive power compensation device 2 is connected to an air-cooling device 3 through a heat dissipation air duct 1. The heat dissipation air duct 1 is used for allowing the hot air in the low-voltage reactive power compensation device 2 to pass through, and the hot air can exchange heat with the outside air through the heat dissipation air duct 1. The hot air in the low-voltage reactive power compensation device 2 enters the air-cooling device 3 through the heat dissipation air duct 1. In this process, the heat dissipation air duct 1 can transfer the heat in the hot air to the surrounding air through the wall of the heat dissipation air duct 1 by means of radiation, so as to achieve the effect of reducing the temperature of the hot air. Among them, the manufacturing material of the heat dissipation air duct 1 includes one of materials with high thermal conductivity such as aluminum alloy, stainless steel, carbon steel, copper, etc. Through this setting, before entering the air-cooling device 3, the gas in the heat dissipation air duct 1 has completed preliminary cooling, which is beneficial to improving the overall cooling efficiency of the circulating heat dissipation system 100.

[0047] Furthermore, a plurality of heat dissipation blocks are arranged on the outer side of the heat dissipation air duct 1. Specifically, the heat dissipation blocks have good thermal conductivity, can radiate heat to the surrounding air, and can also transfer the heat therein to the surrounding air through air flow, so as to achieve a good heat dissipation effect. By arranging a plurality of heat dissipation blocks on the outer side of the heat dissipation air duct 1, on the one hand, the good heat dissipation effect of the heat dissipation blocks can be utilized to accelerate the cooling of the gas in the heat dissipation air duct 1. On the other hand, due to the existence of a plurality of heat dissipation blocks, the surface area of the heat dissipation air duct 1 is increased equivalently, thereby increasing its contact area with the surrounding air, which is beneficial to further improving the heat dissipation efficiency.

[0048] The above is only an exemplary embodiment of the present utility model, and does not limit the patent scope of the present utility model accordingly. All equivalent structural transformations made under the technical concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present utility model.

Claims

1. A circulating heat dissipation system, characterized in that: include: Low voltage reactive power compensation device; Water cooling device; An air cooling device, the air cooling device is connected to the water cooling device through a guide bellows, the air cooling device is used to extract the hot air from the low-pressure reactive power compensation device and transport it to the water cooling device through the guide bellows, and the water cooling device is connected to the low-pressure reactive power compensation device to transport the cooled gas back to the low-pressure reactive power compensation device; The low-voltage reactive power compensation device is sealedly connected to the air cooling device, the air cooling device is sealedly connected to the water cooling device through the guide bellows, and the water cooling device is sealedly connected to the low-voltage reactive power compensation device.

2. The circulating heat dissipation system according to claim 1, characterized in that: The low-voltage reactive power compensation device comprises at least a first cabinet and a second cabinet, the first cabinet is placed on one side of the second cabinet, and the air cooling device is arranged on the other side; The first cabinet and the second cabinet are both connected to the air cooling device; A first perforated plate is provided on the top of the first cabinet, and a second perforated plate is provided on the top of the second cabinet. A first opening is provided on the first perforated plate, and a second opening is provided on the second perforated plate. The first opening is used for allowing hot air in the first cabinet to pass through, and the second opening is used for allowing hot air in the second cabinet to pass through. The density of the first opening is greater than the density of the second opening.

3. The circulating heat dissipation system according to claim 1, characterized in that: The air cooling device comprises a fan and a chassis, and the fan is sealed and installed inside the chassis.

4. The circulating heat dissipation system according to claim 1, characterized in that: The water cooling device is connected to the low-voltage reactive power compensation device through a shock absorbing member, and the shock absorbing member is used to absorb vibrations generated by the low-voltage reactive power compensation device and the air cooling device.

5. The circulating heat dissipation system according to claim 4, characterized in that: The shock absorbing component comprises a flange flexible joint.

6. The circulating heat dissipation system according to claim 4, characterized in that: The water cooling device comprises a water tank and a heat exchange tube. The heat exchange tube is arranged inside the water tank. One end of the heat exchange tube is communicated with the guide air box, and the other end is connected with the shock absorbing member.

7. The circulating heat dissipation system according to claim 6, characterized in that: The lower end of the water tank is connected to a drain pipe, and a valve is installed on the drain pipe.

8. The circulating heat dissipation system according to claim 1, characterized in that: The guide air box comprises a guide plate, and the guide plate is arranged at an angle to deflect the airflow inputted into the guide air box by the air cooling device into the water cooling device.

9. The circulating heat dissipation system according to claim 1, characterized in that: The low-voltage reactive power compensation device is connected to the air cooling device through a heat dissipation duct, and the heat dissipation duct is used for allowing the hot air in the low-voltage reactive power compensation device to pass through, and the hot air can exchange heat with the outside air through the heat dissipation duct.

10. The circulating heat dissipation system according to claim 9, characterized in that: A plurality of heat dissipation blocks are arranged outside the heat dissipation air duct.

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