Heat dissipation structure for high voltage SVG compensation device

Abstract

This utility model discloses a heat dissipation structure for a high-voltage SVG compensation device in the field of dynamic compensation technology. It includes a dynamic compensation housing and a support platform. The support platform is a concrete structure, with its lower part below ground level and containing a hollow cooling circulation chamber. A second ventilation window is located at the end of the support platform above ground level. The dynamic compensation housing is supported by a support platform, and the lower part of the support platform is deeply excavated below the ground surface to house the cooling circulation chamber. This utilizes the temperature difference between the surface and underground to cool the circulating gas, effectively saving energy. When the low temperature in the cooling circulation chamber cannot meet the heat dissipation requirements of the dynamic compensation housing, an air cooler further cools the gas. The cooling and heat dissipation system includes a dryer to dry the gas returning to the dynamic compensation housing, effectively improving the dryness of the air inside the dynamic compensation housing.

Description

Technical Field

[0001] This utility model belongs to the field of dynamic compensation technology, specifically, it relates to a heat dissipation structure for a high-voltage SVG compensation device. Background Technology

[0002] Reactive power compensation devices improve power quality in a wide range of ways, mainly including reactive power compensation, harmonic suppression, voltage fluctuation and flicker reduction, and resolving three-phase imbalance. SVG (Static Var Compensator) devices are connected in parallel to the power grid, acting as a variable reactive current source. Their reactive current can quickly adapt to changes in the load's reactive current, automatically compensating for the reactive power required by the system. Due to their extremely fast response speed, SVG devices are also known as static synchronous compensators. Traditional high-voltage SVG dynamic compensation devices have weak internal ventilation and heat dissipation, often leading to excessively high internal operating temperatures. Therefore, cooling fans are needed inside the dynamic compensation enclosure for cooling. However, these fans have low cooling efficiency and cannot effectively remove moisture from the air, which can negatively impact the electrical components inside the enclosure.

[0003] In view of this, this utility model is hereby proposed. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a heat dissipation structure for a high-voltage SVG compensation device. The basic concept of the technical solution adopted by this utility model to solve the above-mentioned technical problem is as follows:

[0005] A heat dissipation structure for a high-voltage SVG compensation device includes a dynamic compensation housing and a support platform. The support platform is a concrete structure, with its lower part positioned below ground level. It contains a hollow cooling circulation chamber. A second ventilation window is located at the upper end of the support platform above ground level. A mounting frame is installed within the second ventilation window. A fan pump is fixedly mounted on one side of the mounting frame within the cooling circulation chamber. The fan pump is connected to a circulation pipe, and the other end of the circulation pipe is connected to a temperature detector. Above the temperature detector, a first branch pipe connects to a dryer, and a second branch pipe connects to an air cooler. The air outlet of the air cooler is connected to the dryer via a pipe. The cooling circulation chamber utilizes the temperature difference between the surface and underground to cool the circulating gas, effectively saving energy.

[0006] As a further aspect of this utility model: the circulation pipe has an S-bend structure, which can extend the heat exchange time of the circulating gas in the cooling circulation chamber; the support platform is provided with maintenance steps on both sides of the ventilation window; the maintenance steps facilitate internal inspection and maintenance of the dynamic compensation box.

[0007] As a further improvement of this utility model: a safety door is installed on the side wall of the dynamic compensation box above the maintenance step via a hinge. The safety door is equipped with a safety lock. A ventilation window is provided on the side of the safety door. The ventilation window is provided to balance the air pressure inside the dynamic compensation box.

[0008] As a further improvement of this utility model: a filter screen is installed on the outer side of the first ventilation window, the mounting bracket is a U-shaped frame structure, the mounting bracket is fixedly installed on the inner side wall of the second ventilation window by fixing screws, and a protective net is installed at the second ventilation window on the outer side of the mounting bracket. The filter screen is provided to prevent external dust from entering the dynamic compensation box.

[0009] As a further embodiment of this utility model: a solenoid valve one is installed on the first branch pipe, a solenoid valve two is installed on the second branch pipe, and a protective top cover is installed on the top of the dynamic compensation box. The surface area of ​​the protective top cover is larger than the top area of ​​the dynamic compensation box, so that the dryer and the air cooler can be placed under the protective top cover. The protective top cover is used to protect the dynamic compensation box and externally installed electrical equipment.

[0010] As a further embodiment of this utility model: a heat sink is provided inside the air cooler, a semiconductor refrigeration component is provided on the side of the heat sink, a cooling fan is provided on the outside of the semiconductor refrigeration component, and a heat dissipation control box is provided on the side of the dryer.

[0011] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0012] The dynamic compensation box of this utility model is provided with a support platform below it. The lower part of the support platform is deeply excavated below the ground surface to provide a cooling circulation chamber. The temperature difference between the ground surface and underground can be used to cool and lower the circulating gas, which can effectively save energy. When the low temperature in the cooling circulation chamber cannot meet the heat dissipation requirements of the dynamic compensation box, the air cooler will provide further cooling.

[0013] The cooling and heat dissipation system of this utility model includes a dryer, which can dry the gas flowing back into the dynamic compensation box, effectively improving the dryness of the air inside the dynamic compensation box.

[0014] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is the front view of the present invention;

[0018] Figure 3 This is a side view of the present invention;

[0019] Figure 4 This is a schematic diagram of the circulation pipe arrangement of this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the air cooler of this utility model;

[0021] Figure 6 This is a block diagram showing the connection of some components of this utility model.

[0022] In the diagram: 1. Dynamic compensation box; 2. Protective top cover; 3. Support platform; 4. Safety door; 5. Safety lock; 6. Hinge; 7. Ventilation window one; 8. Filter screen; 9. Maintenance step; 10. Protective net; 11. Ventilation window two; 12. Mounting bracket; 13. Fixing screws; 14. Air pump; 15. Circulation pipe; 16. Cooling circulation chamber; 17. Temperature detector; 18. First branch pipe; 19. Dryer; 20. Solenoid valve one; 21. Second branch pipe; 22. Solenoid valve two; 23. Air cooler; 24. Semiconductor refrigeration component; 25. Cooling fan; 26. Heat sink; 27. Heat dissipation control box.

[0023] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] like Figures 1 to 6As shown, the heat dissipation structure for the high-pressure SVG compensation device includes a dynamic compensation box 1 and a support platform 3. The support platform 3 is a concrete structure, with its lower part positioned below the ground level. Inside, there is a hollow cooling circulation chamber 16. At the end of the support platform 3 above the ground level, there is a second ventilation window 11. A mounting bracket 12 is installed inside the second ventilation window 11. A fan pump 14 is fixedly installed on one side of the mounting bracket 12 inside the cooling circulation chamber 16. The fan pump 14 is connected to a circulation pipe 15, and the other end of the circulation pipe 15 is connected to a temperature detector 17. Above the temperature detector 17, a first branch pipe 18 connects to a dryer 19, and a second branch pipe 21 connects to an air cooler 23. The outlet of the air cooler 23 is connected to the dryer 19 through a pipe. The cooling circulation chamber 16 can utilize the temperature difference between the ground surface and underground to cool and reduce the temperature of the circulating gas, effectively saving energy.

[0026] Among them, the circulation pipe 15 has an S-bend structure, which can extend the heat exchange time of the circulating gas in the cooling circulation chamber 16. The support platform 3 is provided with a maintenance step 9 on the side of the ventilation window 11. The maintenance step 9 facilitates the internal inspection and maintenance of the internal dynamic compensation box 1.

[0027] A safety door 4 is installed on the side wall of the dynamic compensation box 1 above the maintenance step 9 via a hinge 6. A safety lock 5 is installed on the safety door 4. A ventilation window 7 is provided on the side of the safety door 4. The ventilation window 7 is provided to balance the air pressure inside the dynamic compensation box 1.

[0028] A filter screen 8 is installed on the outside of the ventilation window 7. The mounting bracket 12 has a U-shaped frame structure. The mounting bracket 12 is fixedly installed on the inner wall of the ventilation window 11 by fixing screws 13. A protective net 10 is installed at the ventilation window 11 on the outside of the mounting bracket 12. The filter screen 8 is set to prevent external dust from entering the dynamic compensation box 1.

[0029] A solenoid valve 20 is installed on the first branch pipe 18, and a solenoid valve 22 is installed on the second branch pipe 21. A protective cover 2 is installed on the top of the dynamic compensation box 1. The surface area of ​​the protective cover 2 is larger than the top area of ​​the dynamic compensation box 1. The dryer 19 and the air cooler 23 can be placed under the protective cover 2. The protective cover 2 is used to protect the dynamic compensation box 1 and the externally installed electrical equipment.

[0030] The air cooler 23 is equipped with a heat sink 26, a semiconductor cooling component 24 is provided on the side of the heat sink 26, a cooling fan 25 is provided on the outside of the semiconductor cooling component 24, and a heat dissipation control box 27 is provided on the side of the dryer 19.

[0031] The working principle of this utility model is as follows: When circulating heat dissipation is performed inside the dynamic compensation box 1, the air pump 14 draws external air into the circulation pipe 15 through the second ventilation window 11. The circulation pipe 15 is arranged in an S-shape within the cooling circulation chamber 16. Since the cooling circulation chamber 16 is located underground, the underground temperature is relatively low when the external temperature is high. Utilizing the natural low-temperature environment within the cooling circulation chamber 16, the gas in the circulation pipe 15 is effectively cooled. The cooled gas is then supplied to the temperature detector 17. When the temperature meets the heat dissipation requirements of the dynamic compensation box 1, the solenoid valve... When valve 20 is opened, the gas enters the dynamic compensation chamber 1 after being dried by dryer 19, where it is effectively cooled. If the gas temperature is still relatively high after natural cooling, solenoid valve 22 is opened, and the gas is cooled by air cooler 23 and then dried by dryer 19. If natural cooling can meet the heat dissipation requirements, there is no need to turn on the control cooler, thus effectively saving energy. Dryer 19 can dry the gas returning to the dynamic compensation chamber 1, effectively improving the dryness of the air in the dynamic compensation chamber 1.

[0032] The preferred model K039455 is used in the dryer 19. The dynamic compensation box is equipped with components such as a power grid module, a load module, a current sampling module, a reactive power regulation module, an overvoltage drive module, and a relay working module. These are existing technologies and will not be described in detail here.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A heat dissipation structure for a high-voltage SVG compensation device, comprising a dynamic compensation housing (1) and a support platform (3), characterized in that, The support platform (3) is a concrete structure. The lower part of the support platform (3) is set below the ground level. A hollow cooling circulation chamber (16) is set inside. A second ventilation window (11) is set at the end of the part of the support platform (3) above the ground level. A mounting bracket (12) is installed in the second ventilation window (11). A wind pump (14) is fixedly installed on one side of the mounting bracket (12) inside the cooling circulation chamber (16). The wind pump (14) is connected to the circulation pipe (15). The other end of the circulation pipe (15) is connected to the temperature detector (17). The temperature detector (17) is connected to the dryer (19) above through the first branch pipe (18) and to the air cooler (23) through the second branch pipe (21). The air outlet of the air cooler (23) is connected to the dryer (19) through a pipe.

2. The heat dissipation structure for the high-voltage SVG compensation device according to claim 1, characterized in that, The circulation pipe (15) has an S-bend structure, which can prolong the heat exchange time of the circulating gas in the cooling circulation chamber (16). The support platform (3) is provided with a maintenance step (9) on the side of the second ventilation window (11).

3. The heat dissipation structure for the high-voltage SVG compensation device according to claim 2, characterized in that, A safety door (4) is installed on the side wall of the dynamic compensation box (1) above the maintenance step (9) via a hinge (6). A safety lock (5) is installed on the safety door (4), and a ventilation window (7) is provided on the side of the safety door (4).

4. The heat dissipation structure for the high-voltage SVG compensation device according to claim 3, characterized in that, A filter screen (8) is installed on the outside of the first ventilation window (7). The mounting bracket (12) is a U-shaped frame structure. The mounting bracket (12) is fixedly installed on the inner wall of the second ventilation window (11) by fixing screws (13). A protective net (10) is installed on the second ventilation window (11) outside the mounting bracket (12).

5. The heat dissipation structure for the high-voltage SVG compensation device according to claim 4, characterized in that, A solenoid valve 1 (20) is installed on the first branch pipe (18), and a solenoid valve 2 (22) is installed on the second branch pipe (21). A protective cover (2) is installed on the top of the dynamic compensation box (1). The surface area of ​​the protective cover (2) is larger than the top area of ​​the dynamic compensation box (1), so that the dryer (19) and the air cooler (23) can be placed under the protective cover (2).

6. The heat dissipation structure for the high-voltage SVG compensation device according to claim 4, characterized in that, The air cooler (23) is provided with a heat sink (26), a semiconductor cooling component (24) is provided on the side of the heat sink (26), a cooling fan (25) is provided on the outside of the semiconductor cooling component (24), and a heat dissipation control box (27) is provided on the side of the dryer (19).

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