Modular base for installation of box-type substation
By using the heat exchange pipe system in the modular base, hot air inside the transformer box is introduced into the underground soil for heat exchange, which solves the problem of the single function of the box-type substation base and achieves a highly efficient heat dissipation effect.
Patent Information
- Application Number
- CN202520321572.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-26
AI Technical Summary
The existing concrete base of the prefabricated substation has a single function and cannot effectively reduce the high heat generation of the internal electrical equipment.
A modular base is designed to introduce hot air from the transformer box into the underground soil through heat exchange pipes for heat exchange. Rapid heat transfer is achieved through a fan and connecting pipeline system, and the low temperature characteristics of the soil are used to reduce the temperature of the box.
It significantly reduces the temperature inside the transformer box, improves the heat dissipation efficiency of the prefabricated substation, and reduces the risk of high temperature for electrical equipment.
Smart Images
Figure CN223843408U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat dissipation technology for prefabricated substations, specifically a modular base for installing prefabricated substations. Background Technology
[0002] A prefabricated substation, also known as a prefabricated transformer substation, is a factory-prefabricated, compact indoor or outdoor power distribution device that integrates high-voltage switchgear, distribution transformers, and low-voltage power distribution equipment according to a specific wiring scheme. Due to its relatively large size, a prefabricated substation is typically installed on a precast concrete base.
[0003] Existing concrete bases serve only as supports and have a limited functionality. However, prefabricated substations contain numerous electrical devices that generate significant heat. Therefore, we propose a modular base for prefabricated substation installation that incorporates cooling capabilities, thereby enhancing the base's functionality. Utility Model Content
[0004] To address the shortcomings of existing prefabricated substation bases that are merely concrete bases, this invention provides a modular base for installing prefabricated substations, which has the advantage of cooling the interior of the transformer enclosure, thus solving the problems mentioned in the background art.
[0005] The technical solution of this utility model is implemented as follows: a modular base for installing a box-type substation includes a base, the top of which is used to install a transformer box, and a heat exchange pipe is provided below the base so that the heat exchange pipe is buried in the soil below the base. Both ends of the heat exchange pipe extend above the top surface of the base. One end of the heat exchange pipe is connected to the inlet of a fan through a first connecting pipe, and the outlet of the fan is connected to the inside of the transformer box. The other end of the heat exchange pipe is connected to the inside of the transformer box through a second connecting pipe.
[0006] Preferably, the heat exchange tubes are arranged in at least one group, and each group has at least two heat exchange tubes. The number of fans corresponds to the number of heat exchange tube groups. One end of the second connecting pipe is connected to one end of the heat exchange tube through a second multi-pipe joint, and the other end of the heat exchange tube is connected to the first connecting pipe through a first multi-pipe joint.
[0007] Preferably, the outlet of the fan is connected to the inside of the transformer box through an air outlet duct.
[0008] Preferably, the heat exchange tube is a metal tube.
[0009] Preferably, the surface of the heat exchange tube is provided with heat sink fins.
[0010] Preferably, each second connecting pipe is provided with at least two air inlet pipes, which are connected to the inside of the transformer box.
[0011] Compared with the prior art, in use, the present invention, after the fan discharges the air in the heat exchange tube into the transformer box, causes a negative pressure to be formed inside the heat exchange tube. This allows the hot air in the transformer box to enter the heat exchange tube through each air inlet pipe. The heat carried by the hot air in the heat exchange tube is absorbed by the soil, thereby achieving rapid heat exchange. This can significantly reduce the temperature inside the transformer box. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a structural schematic diagram of one side of the present invention.
[0014] Figure 2 This is a schematic diagram of the structure on the other side of this utility model.
[0015] Figure 3 This is a schematic diagram of the structure of this utility model after removing the transformer box.
[0016] Figure 4 This is the front view of the present utility model.
[0017] Figure 5 This is a schematic diagram of the structure of this utility model after removing the transformer box and the base.
[0018] In the diagram: 1. Transformer housing; 2. Air outlet duct; 3. Fan; 4. First connecting duct; 5. First multi-pipe joint; 6. Heat exchange tube; 7. Base; 8. Air inlet duct; 9. Second connecting duct; 10. Second multi-pipe joint. Detailed Implementation
[0019] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] Reference Figures 1 to 5 This utility model provides a technical solution: a modular base for installing a box-type substation, including a base 7, where the base 7 is a concrete base, and the top of the base 7 is used to install the transformer box 1, that is, the transformer box 1 is installed on the base 7.
[0021] Before constructing base 7, a foundation pit needs to be dug in the ground, and then the base is constructed within the pit, as follows: Figure 4 As shown, a heat exchange pipe 6 is installed below the base 7, meaning the heat exchange pipe 6 is laid at the bottom of the base 7, and then concrete is poured on top of the heat exchange pipe 6. This allows the heat exchange pipe 6 to be buried in the soil below the base 7, maximizing the contact between the heat exchange pipe 6 and the soil below the surface. The heat exchange pipe 6 is a metal pipe, such as... Figure 4 As shown, the surface of the heat exchange tube 6 is provided with heat dissipation fins (not labeled in the figure), which can increase the exchange rate between the heat exchange tube 6 and the soil.
[0022] Both ends of the heat exchange tube 6 extend above the top surface of the base 7. The two ends of the heat exchange tube 6 are curved and embedded inside the base 7. In the actual installation process, the two ends of the heat exchange tube 6 should be located outside the transformer box 1, so there is no need to consider the waterproofing between the base 7 and the heat exchange tube 6.
[0023] During installation, one end of the heat exchange tube 6 is connected to the inlet of the fan 3 through the first connecting pipe 4, the outlet of the fan 3 is connected to the inside of the transformer box 1, and the other end of the heat exchange tube 6 is connected to the inside of the transformer box 1 through the second connecting pipe 9.
[0024] Both the first connecting pipe 4 and the second connecting pipe 9 are exposed outside the transformer box 1. In order to prevent the first connecting pipe 4 and the second connecting pipe 9 from exchanging heat with the outside air, heat insulation cotton is also wrapped around the first connecting pipe 4 and the second connecting pipe 9.
[0025] Furthermore, the heat exchange tubes 6 are set up in at least one group, and each group has at least two heat exchange tubes 6.
[0026] Furthermore, the number of fans 3 corresponds to the number of heat exchange tube groups 6, that is, each group of heat exchange tubes 6 corresponds to one fan 3, such as... Figure 3 As shown, one end of the second connecting pipe 9 is connected to one end of the heat exchange pipe 6 via the second multi-pipe connector 10, while the other end of the heat exchange pipe 6 is connected to the first connecting pipe 4 via the first multi-pipe connector 5. Both the second multi-pipe connector 10 and the first multi-pipe connector 5 are "Y" type pipe connectors.
[0027] In practical applications, the fan 3 is located outside the transformer housing 1. This avoids the fan occupying internal space within the transformer housing 1 and also prevents the fan motor's heat from concentrating inside the transformer housing 1. During installation, the outlet of the fan 3 is connected to the interior of the transformer housing 1 via the air outlet duct 2. Ideally, the fan 3 should be positioned at the top of the transformer housing 1. Installing the fan on the side of the transformer housing 1 is also possible, but a support bracket for the fan 3 will be required.
[0028] Furthermore, in order to increase the flow rate of air entering the heat exchange pipe 6 from the transformer box 1, at least two air inlet pipes 8 are provided on each second connecting pipe 9. The air inlet pipes 8 are connected to the inside of the transformer box 1, so that the transformer box 1 has multiple channels to enter the second connecting pipe 9.
[0029] In summary, the specific working method of this application is as follows: First, the corresponding electrical equipment is installed in the transformer box 1. When the weather is hot, the fan 3 is turned on. After the fan 3 discharges the air in the heat exchange tube 6 into the transformer box 1, a negative pressure is formed inside the heat exchange tube 6.
[0030] Then, the hot air inside the transformer box 1 enters the heat exchange tubes 6 through each air inlet pipe 8. Since the heat exchange tubes 6 are buried underground, the temperature below the surface is between 5-17℃ all year round. Therefore, the heat carried by the hot air passing through the heat exchange tubes 6 is transferred to the soil by the heat exchange tubes 6, thereby achieving rapid heat exchange. This can significantly reduce the temperature inside the transformer box 1. In this application, the heat exchange tubes 6 and the base 7 are designed as a cooling module, which can make full use of the low temperature of the soil to reduce the temperature inside the transformer box 1.
[0031] Based on the above embodiments, further optimization can be achieved. The transformer housing 1 is equipped with a control unit and a temperature sensor. The control unit is a PLC logic controller or a host, etc. The controller is connected to the fan 3 and the temperature sensor respectively. When the temperature sensor detects that the temperature inside the transformer housing 1 reaches the set value, the fan 3 will automatically turn on.
[0032] Based on the above embodiments, further optimization is possible. The heat exchange tube 6 can be bent and disposed below the base 7. For example, the heat exchange tube 6 can be designed as a U-shaped or S-shaped bent structure, which can increase the contact area between the heat exchange tube 6 and the soil.
[0033] Based on the above embodiments, further optimization is possible. An indoor air conditioning unit is installed inside the transformer housing 1, while the outdoor air conditioning unit is installed outside the transformer housing 1. This solution can be used when the heat exchange pipe 6 cannot effectively cool down the transformer housing 1. However, the heat exchange pipe 6 can still cool down the transformer housing 1. It can be used in conjunction with the air conditioning system to reduce air conditioning energy consumption.
[0034] Based on the above embodiments, further optimization is possible. An exhaust fan is installed on the side of the transformer box 1, and the exhaust fan is used for normal ventilation during normal use.
[0035] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A modular base for installing a prefabricated substation, comprising a base (7), the top of which is used to install a transformer enclosure (1), characterized in that, A heat exchange pipe (6) is provided below the base (7), so that the heat exchange pipe (6) is buried in the soil below the base (7); Both ends of the heat exchange tube (6) extend above the top surface of the base (7); and, One end of the heat exchange tube (6) is connected to the inlet of the fan (3) through the first connecting pipe (4), and the outlet of the fan (3) is connected to the inside of the transformer box (1); The other end of the heat exchange tube (6) is connected to the inside of the transformer box (1) through the second connecting pipe (9).
2. The modular base for installing a prefabricated substation as described in claim 1, characterized in that, The heat exchange tubes (6) are set up in at least one group, and the number of heat exchange tubes (6) in each group is at least two; The number of fans (3) corresponds to the number of heat exchange tubes (6), and one end of the second connecting pipe (9) is connected to one end of the heat exchange tube (6) through the second multi-pipe joint (10); The other end of the heat exchange tube (6) is connected to the first connecting pipe (4) through the first multi-pipe joint (5).
3. The modular base for installing a prefabricated substation as described in claim 2, characterized in that, The outlet of the fan (3) is connected to the inside of the transformer box (1) through the air outlet pipe (2).
4. The modular base for installing a prefabricated substation as described in claim 1, characterized in that, The heat exchange tube (6) is a metal tube.
5. The modular base for installing a prefabricated substation as described in claim 4, characterized in that, The heat exchange tube (6) has heat sinks on its surface.
6. The modular base for installing a prefabricated substation as described in claim 1, characterized in that, Each second connecting pipe (9) is equipped with at least two air inlet pipes (8), which are connected to the inside of the transformer box (1).