Temperature control automatic adjusting system of transformer substation
By designing the substation temperature control automatic adjustment system, and using the wind direction adjustment mechanism and temperature sensor to dynamically adjust the air supply direction and fan power, the problem that the temperature control system in the existing technology cannot be dynamically adjusted is solved, and uniform cooling of the electric box and energy saving are achieved.
Patent Information
- Application Number
- CN202510463022.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-14
- Publication Date
- 2025-06-24
AI Technical Summary
The existing substation temperature control system cannot be dynamically adjusted according to the temperature changes of the electric box, resulting in waste of energy and uneven temperature distribution, and poor heat dissipation performance of electric box in some areas.
A substation temperature control automatic adjustment system is designed, including a wind direction adjustment mechanism, temperature sensor, control system and circulating bellows. By dynamically adjusting the air supply direction and fan power, the uniform cooling of the electric box is achieved, and the internal circulation and external circulation modes are used to cool down when outdoor high and low temperatures are used respectively.
The uniform cooling of the electric box is achieved, energy waste is reduced, temperature distribution is improved, and waste heat is converted into electrical energy-driven cooling fan through the thermoelectric conversion module, which improves the heat dissipation speed of the electric box.
Smart Images
Figure CN120200127A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of temperature control in substations, and particularly relates to a temperature control automatic adjustment system for substations. Background Art
[0002] A substation is a core facility of the power system. There are electrical boxes inside it. When the electrical equipment inside the electrical boxes operates, a large amount of heat will be generated. If the heat dissipation is insufficient, it will lead to equipment aging, a decline in insulation performance, and even failures. Generally, fixed air conditioners or ventilation devices are used to cool the substation. However, the air conditioners generally operate at full power continuously and cannot dynamically adjust according to the temperature change of the electrical boxes, resulting in a waste of energy. Moreover, the air supply direction of the air conditioners remains fixed, which easily causes uneven temperature distribution in the substation, and the heat dissipation performance of the electrical boxes in local areas is poor. Therefore, there are still drawbacks and deficiencies in the prior art. Summary of the Invention
[0003] The present invention provides a temperature control automatic adjustment system for substations to solve the problems raised in the background art.
[0004] To solve the above technical problems, the technical solution adopted by the present invention is: A temperature control automatic adjustment system for substations, including a housing. There are several electrical boxes inside the housing. A control system and a circulating air box are arranged outside the housing. A fan and a surface cooler are installed inside the circulating air box. One end of the circulating air box is connected to a return air duct and a fresh air duct. The other end of the circulating air box is connected to a supply air duct. The supply air duct is installed on the inner side wall of the housing. The supply air duct is connected to a supply air branch pipe corresponding to the electrical box. The supply air branch pipe is arranged vertically. One side of the supply air branch pipe facing the corresponding electrical box is connected to a horizontally arranged air outlet cylinder. A wind direction adjustment mechanism is arranged inside the air outlet cylinder. The wind direction adjustment mechanism includes a plurality of horizontal guide plates spaced apart along the vertical direction. The horizontal guide plates are slidably connected inside the air outlet cylinder. The lowermost horizontal guide plate is in sliding contact with the inner bottom surface of the air outlet cylinder. The horizontal guide plate is hinged with an adjustment guide plate located at the outer end of the air outlet cylinder. Both ends of the outer side of the adjustment guide plate are fixedly connected with support rods. A vertically arranged lifting rod is arranged outside the support rods. The lifting rod is hinged with the support rod. A driving mechanism for driving the lifting rod to lift and lower is arranged at the top of the lifting rod.
[0005] A first temperature sensor is arranged inside the electrical box. A heat dissipation fan is installed on the side wall of the electrical box. A thermoelectric conversion mechanism for supplying power to the heat dissipation fan is installed inside the electrical box. The return air duct is installed on the inner top surface of the housing. A plurality of return air openings are opened on the return air duct. A first electric air valve is installed at one end of the return air duct close to the circulating air box. The other end of the return air duct extending outside the housing is provided with an exhaust opening. A second electric air valve is installed at one end of the return air duct close to the exhaust opening. A third electric air valve is installed on the fresh air duct. A fresh air filter screen is installed inside the fresh air duct. The other end of the fresh air duct away from the circulating air box is provided with a fresh air opening. A second temperature sensor is installed at the fresh air opening.
[0006] Preferably, an arc-shaped guide plate facing the air outlet cylinder is fixedly connected to the bottom end of the air supply branch pipe.
[0007] Preferably, sliding grooves are formed on the inner side wall of the air outlet cylinder at both ends of the horizontal guide plate, and both ends of the horizontal guide plate are located in the sliding grooves and are slidably connected to the sliding grooves.
[0008] Preferably, a mounting frame is fixedly connected to the outer end of the air outlet cylinder, and the lifting rod passes through the mounting frame and is slidably connected to the mounting frame.
[0009] Preferably, the driving mechanism includes a telescopic assembly, the telescopic assembly is installed on the air supply branch pipe, and the telescopic end of the telescopic assembly is fixedly connected to the lifting rod.
[0010] Preferably, the thermoelectric conversion mechanism includes a thermoelectric conversion module. The thermoelectric conversion module is connected to the heat dissipation weak area of the electrical box through a first heat conducting sheet. The thermoelectric conversion module is connected with a heat sink fixedly installed on the outer side wall of the electrical box through a second heat conducting sheet. The thermoelectric conversion module is connected to the heat dissipation fan through a wire.
[0011] Preferably, a variable frequency air conditioner main unit is installed on the outer wall of the room body, and the surface cooler is connected to the variable frequency air conditioner main unit through a refrigerant pipeline.
[0012] Preferably, a rain-proof louver is provided at the fresh air inlet.
[0013] The beneficial effects of the present invention are as follows: (1) By setting the wind direction adjustment mechanism, the air outlet cylinder can perform up and down air sweeping on the electrical box, so as to evenly cool the electrical box and reduce the situation of excessive local temperature of the electrical box. Secondly, by setting a first temperature sensor in the electrical box, when a single / multiple electrical boxes are overheated, the control system can control the corresponding wind direction adjustment mechanism, directionally open the corresponding air supply branch pipe, and adjust the power of the fan and the variable frequency air conditioner main unit according to the number of overheated electrical boxes, so as to supply cooling on demand and avoid energy waste of global cooling; (2) By adopting the internal circulation mode when the outdoor temperature is high, using the surface cooler to circulate and cool the indoor air, and adopting the external circulation mode when the outdoor temperature is low to introduce natural cold air for cooling, and the surface cooler can also be used to assist in cooling to enhance the cooling efficiency, so as to reduce energy consumption; (3) Utilizing the temperature difference between the heating element of the electrical box and the external heat sink, the thermoelectric conversion module converts waste heat into electric energy to drive the heat dissipation fan, so as to improve the heat dissipation speed of the electrical box. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of the interior of the present invention in a top view state; Figure 3 is a schematic side view structural diagram of the present invention; Figure 4Schematic diagram of the internal structure of the present invention in a side view state; Figure 5 Schematic diagram of the connection between the air supply branch pipe and the wind direction adjustment mechanism of the present invention; Figure 6 Schematic diagram of the adjustment guide plate in a vertical state of the present invention; Figure 7 is Figure 1 Schematic diagram of the partial enlargement at position A in Figure 8 is Figure 4 Schematic diagram of the partial enlargement at position B in Figure 9 is Figure 4 Schematic diagram of the partial enlargement at position C in
[0015] Reference numerals: 1, housing; 2, electrical box; 3, control system; 4, circulating air box; 5, fan; 6, surface cooler; 7, variable frequency air conditioner main unit; 8, return air duct; 9, fresh air duct; 10, supply air duct; 11, air supply branch pipe; 12, air outlet cylinder; 13, wind direction adjustment mechanism; 131, horizontal guide plate; 132, adjustment guide plate; 133, support rod; 134, lifting rod; 135, installation frame; 136, driving mechanism; 14, return air outlet; 15, first electric air valve; 16, exhaust air outlet; 17, second electric air valve; 18, third electric air valve; 19, fresh air filter screen; 20, fresh air inlet; 21, second temperature sensor; 22, first temperature sensor; 23, cooling fan; 24, thermoelectric conversion mechanism; 241, thermoelectric conversion module; 242, first heat conducting sheet; 243, heating element; 244, second heat conducting sheet; 245, heat sink; 25, arc guide plate; 26, sliding groove; 27, rainproof louver. Detailed implementation manners
[0016] The present invention will be further described below with reference to the accompanying drawings.
[0017] As Figures 1-9As shown in the figure, the present invention provides a temperature control automatic adjustment system for a substation, which includes a housing 1. Inside the housing 1, there are several electrical boxes 2. Inside the electrical box 2, there is a first temperature sensor 22. Outside the housing 1, there is a control system 3 and a circulating air box 4. Inside the circulating air box 4, a fan 5 and a surface cooler 6 are installed. On the outer wall of the housing 1, a variable frequency air conditioner main unit 7 is installed. The surface cooler 6 is connected to the variable frequency air conditioner main unit 7 through a refrigerant pipeline. The variable frequency air conditioner main unit 7 can provide a cold source for the surface cooler 6. One end of the circulating air box 4 is connected to a return air duct 8 and a fresh air duct 9. The other end of the circulating air box 4 is connected to a supply air duct 10. The supply air duct 10 is installed on the inner wall of the housing 1. The supply air duct 10 is connected to a supply air branch pipe 11 corresponding to the electrical box 2. The supply air branch pipe 11 is vertically arranged. On the side of the supply air branch pipe 11 facing the corresponding electrical box 2, a horizontally arranged air outlet cylinder 12 is connected. Inside the air outlet cylinder 12, there is a wind direction adjusting mechanism 13. The wind direction adjusting mechanism 13 includes a plurality of horizontal guide plates 131 spaced apart along the vertical direction. The horizontal guide plates 131 are slidably connected inside the air outlet cylinder 12. The lowermost horizontal guide plate 131 is in sliding contact with the inner bottom surface of the air outlet cylinder 12. The horizontal guide plate 131 is hinged with an adjusting guide plate 132 located at the outer end of the air outlet cylinder 12. At both outer ends of the adjusting guide plate 132, a support rod 133 is fixedly connected. Outside the support rod 133, a vertically arranged lifting rod 134 is provided. The lifting rod 134 is hinged with the support rod 133. The outer end of the air outlet cylinder 12 is fixedly connected with a mounting frame 135. The lifting rod 134 passes through the mounting frame 135 and is slidably connected with the mounting frame 135. At the top of the lifting rod 134, there is a driving mechanism 136 for driving the lifting rod 134 to lift and lower; specifically, the horizontal guide plate 131 plays a guiding role and can guide the air from the supply air branch pipe 11 into the air outlet cylinder 12. By driving the lifting rod 134 to lift and lower through the driving mechanism 136, the lifting rod 134 can drive the adjusting guide plate 132 to rotate around the horizontal guide plate 131, so that the included angle between the adjusting guide plate 132 and the horizontal guide plate 131 changes within the range of 90° to 215°. As Figure 6 shown, when the included angle between the adjusting guide plate and the horizontal guide plate 131 is 90°, the adjusting guide plate 132 is in a vertical state, so that the air outlet cylinder 12 can be blocked, realizing the closing of the supply air branch pipe 11. When the included angle changes, the adjusting guide plate 132 can guide the air outlet angle to change, so that the air outlet cylinder 12 can sweep the electrical box 2 up and down, thereby being able to evenly cool the electrical box 2 and reducing the situation of excessive local temperature of the electrical box 2; secondly, the first temperature sensor 22 transmits the temperature of the electrical box 2 to the control system 3 in real time. When a single electrical box 2 is overheated, the control system 3 turns on the fan 5 and the variable frequency air conditioner main unit 7, and controls the corresponding wind direction adjusting mechanism 13 to act, so that the corresponding supply air branch pipe 11 is opened to supply air to the overheated electrical box 2 to cool the overheated electrical box 2. When multiple electrical boxes 2 are overheated, the control system 3 increases the power of the fan 5 and the variable frequency air conditioner main unit 7 according to the number of overheated electrical boxes 2, and controls the corresponding wind direction adjusting mechanism 13 to act, so as to be able to cool the multiple overheated electrical boxes 2.
[0018] The return air duct 8 is installed on the inner top surface of the housing 1. A plurality of return air openings 14 are formed in the return air duct 8. One end of the return air duct 8 close to the circulating air box 4 is installed with a first electric air valve 15. One end of the return air duct 8 far from the circulating air box 4 extends outside the housing 1 and is provided with an exhaust opening 16. One end of the return air duct 8 close to the exhaust opening 16 is installed with a second electric air valve 17; a third electric air valve 18 is installed on the fresh air duct 9. A fresh air filter screen 19 is installed in the fresh air duct 9. One end of the fresh air duct 9 far from the circulating air box 4 is provided with a fresh air opening 20, and a second temperature sensor 21 is installed at the fresh air opening 20. Specifically, when cooling the electric box 2, when the second temperature sensor 21 monitors that the outdoor temperature is relatively high, the control system 3 closes the second electric air valve 17 and the third electric air valve 18, and opens the first electric air valve 15. Under the action of the fan 5, the air in the housing 1 sequentially enters the circulating air box 4 through the return air opening 14 and the return air duct 8, is cooled by the surface cooler 6, and then is blown out through the supply air duct 10 and the air outlet cylinder 12 in sequence. In this way, the temperature control automatic regulation system can adopt the internal circulation mode, and the electric box 2 is cooled by the surface cooler 6; when the second temperature sensor 21 monitors that the outdoor temperature is relatively low, the control system 3 closes the first electric air valve 15, opens the second electric air valve 17 and the third electric air valve 18. Under the action of the fan 5, the outdoor cold air is sequentially blown out from the air outlet cylinder 12 after passing through the fresh air duct 9, the circulating air box 4 and the supply air duct 10, so as to be able to cool the electric box 2. The air in the housing 1 is discharged to the outside through the return air opening 14, the return air duct 8 and the exhaust opening 16 in sequence. In this way, the temperature control automatic regulation system can adopt the external circulation mode, and the electric box 2 is cooled by the outdoor cold air. In addition, in the external circulation mode, the outdoor cold air can also be assisted in cooling by the surface cooler 6 to improve the cooling speed of the electric box 2.
[0019] A heat dissipation fan 23 is installed on the side wall of the electric box 2. A thermoelectric conversion mechanism 24 for supplying power to the heat dissipation fan 23 is installed in the electric box 2. The thermoelectric conversion mechanism 24 includes a thermoelectric conversion module 241. The thermoelectric conversion module 241 is a semiconductor thermoelectric generator based on the Seebeck effect. The thermoelectric conversion module 241 is connected to the heat dissipation weak area of the electric box 2 through a first heat conducting sheet 242. In this embodiment, the first heat conducting sheet 242 is attached to the heating element 243 inside the electric box 2. The thermoelectric conversion module 241 is connected with a heat sink 245 fixedly installed on the outer side wall of the electric box 2 through a second heat conducting sheet 244. The thermoelectric conversion module 241 is connected to the heat dissipation fan 23 through a wire. Specifically, when the heating element 243 generates heat, a temperature difference is formed between the heating element 243 and the heat sink 245. The thermoelectric conversion module 241 converts the temperature difference into corresponding electric energy, and this electric energy provides a current value for the heat dissipation fan 23, so as to be able to drive the heat dissipation fan 23 to rotate, so as to facilitate the heat dissipation action inside the electric box 2.
[0020] In some embodiments, an arc-shaped guide plate 25 is fixedly connected to the bottom end of the air supply branch pipe 11 and faces the air outlet cylinder 12. The arc-shaped guide plate 25 plays a guiding role and can guide the air at the bottom end of the air supply branch pipe 11 into the air outlet cylinder 12, thereby reducing the wind resistance loss and improving the air supply efficiency.
[0021] In some embodiments, sliding grooves 26 are formed in the inner side wall of the air outlet cylinder 12 at both ends of the horizontal guide plate 131. Both ends of the horizontal guide plate 131 are located in the sliding grooves 26 and are slidably connected to the sliding grooves 26. The horizontal guide plate 131 is slidably connected to the air outlet cylinder 12 through the sliding grooves 26.
[0022] In some embodiments, the driving mechanism 136 includes a telescopic assembly. The telescopic assembly can be an electric telescopic rod, a cylinder, etc. The telescopic assembly is installed on the air supply branch pipe 11, and the telescopic end of the telescopic assembly is fixedly connected to the lifting rod 134. By setting the telescopic rod, the lifting rod 134 can be driven to lift.
[0023] In some embodiments, a rain-proof louver 27 is provided at the fresh air inlet 20. By providing the rain-proof louver 27, rainwater intrusion can be blocked, and damage to the fresh air pipe 9 caused by rainwater can be reduced.
[0024] In the above embodiments, the fan 5, the variable frequency air conditioner host 7, the driving mechanism 136, the first electric air valve 15, the second electric air valve 17, the third electric air valve 18, the second temperature sensor 21, and the first temperature sensor 22 are all electrically connected to the control system 3.
[0025] The above embodiments can be combined with each other.
[0026] The above embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the present invention. Any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention all belong to the protection scope of the technical solution of the present invention.
Claims
1. A temperature control automatic adjustment system for a substation, comprising a room, characterized in that: The room is provided with several electrical boxes, a control system and a circulating air box are provided outside the room, a fan and a surface cooler are installed in the circulating air box, one end of the circulating air box is connected with a return air duct and a fresh air duct, the other end of the circulating air box is connected with an air supply duct, the air supply duct is installed on the inner wall of the room body, the air supply duct is connected with an air supply branch pipe corresponding to the electrical box, the air supply branch pipe is vertically arranged, and the side of the air supply branch pipe facing the corresponding electrical box is connected with a horizontally arranged air outlet tube, an air direction adjusting mechanism is provided in the air outlet tube, the air direction adjusting mechanism comprises a plurality of horizontal guide plates spaced apart in the vertical direction, the horizontal guide plates are slidably connected in the air outlet tube, the lowest horizontal guide plate is in sliding contact with the inner bottom surface of the air outlet tube, the horizontal guide plate is hinged with an adjusting guide plate located at the outer end of the air outlet tube, the two ends of the outer side of the adjusting guide plate are fixedly connected with support rods, a vertically arranged lifting rod is provided on the outer side of the support rod, the lifting rod is hinged to the support rod, and a driving mechanism for driving the lifting rod to rise and fall is provided on the top of the lifting rod; A first temperature sensor is provided in the electric box, a cooling fan is installed on the side wall of the electric box, and a thermoelectric conversion mechanism for supplying power to the cooling fan is installed in the electric box; The return air duct is installed on the inner top surface of the room body, and a plurality of return air ports are opened on the return air duct. A first electric air valve is installed at one end of the return air duct close to the circulating air box, and an end of the return air duct away from the circulating air box extends to the outside of the room and is opened with an exhaust port, and a second electric air valve is installed at one end of the return air duct close to the exhaust port; A third electric air valve is installed on the fresh air duct, a fresh air filter is installed in the fresh air duct, a fresh air inlet is opened at one end of the fresh air duct away from the circulating air box, and a second temperature sensor is installed at the fresh air inlet.
2. The temperature control automatic adjustment system of a substation according to claim 1, characterized in that: The bottom end of the air supply branch pipe is fixedly connected with an arc-shaped guide plate facing the air outlet cylinder.
3. The temperature control automatic adjustment system of a substation according to claim 1, characterized in that: The inner side wall of the air outlet cylinder is provided with sliding grooves located at both ends of the horizontal guide plate, and the two ends of the horizontal guide plate are located in the sliding grooves and are slidably connected with the sliding grooves.
4. The temperature control automatic adjustment system of a substation according to claim 1, characterized in that: The outer end of the air outlet cylinder is fixedly connected with a mounting frame, and the lifting rod passes through the mounting frame and is slidably connected with the mounting frame.
5. The temperature control automatic adjustment system of a substation according to claim 1, characterized in that: The driving mechanism comprises a telescopic component, which is mounted on the air supply branch pipe, and a telescopic end of the telescopic component is fixedly connected to the lifting rod.
6. The temperature control automatic adjustment system of a substation according to claim 1, characterized in that: The thermoelectric conversion mechanism includes a thermoelectric conversion module, which is connected to the weak heat dissipation area of the electrical box through a first heat conductive sheet, and is connected to a heat sink fixedly mounted on the outer wall of the electrical box through a second heat conductive sheet. The thermoelectric conversion module is connected to a cooling fan through a wire.
7. The temperature control automatic adjustment system of a substation according to claim 1, characterized in that: A variable frequency air conditioner host is installed on the outer wall of the room, and the surface cooler is connected to the variable frequency air conditioner host through a refrigerant pipeline.
8. The temperature control automatic adjustment system of a substation according to claim 1, characterized in that: The fresh air outlet is provided with rainproof shutters.