Heavy overload main transformer energy storage cooling refrigeration device
By introducing an energy storage cooling device into the transformer, and utilizing phase change energy storage materials and a multi-stage evaporator, the problems of low heat dissipation efficiency and high water consumption of the transformer under high load in summer are solved, achieving efficient cooling and stable operation.
Patent Information
- Application Number
- CN202522617543.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-10
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-12-10
AI Technical Summary
Existing transformers have low efficiency and high water consumption during high-load operation. Traditional cooling methods are not effective in summer or may cause scale formation.
The system employs a heavy-duty overload main transformer energy storage cooling device, which includes a heat dissipation device and a cooling device inside the casing. It utilizes phase change energy storage materials to release cold energy, and combines wet film and multi-stage evaporators to cool the air, achieving efficient heat exchange.
It significantly improves the cooling effect and heat exchange efficiency of transformers, solves the problems of low efficiency and high water consumption of traditional heat dissipation methods in high-load summers, and ensures the safe and stable operation of transformers.
Smart Images
Figure CN223871303U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of transformer heat dissipation technology, specifically relating to a heavy overload main transformer energy storage cooling device. Background Technology
[0002] During peak summer seasons and other periods of heavy load operation, the main transformer's oil temperature may rise, reaching or even exceeding the transformer's specified operating conditions, posing a significant threat to safe and stable operation.
[0003] Currently, transformer radiators are cooled primarily using traditional methods such as fans, mist cannons, and ice packs. However, these traditional cooling methods have the following drawbacks:
[0004] Fan cooling: Only applicable when the ambient temperature is low. In summer, due to the high ambient temperature and heavy transformer load, its cooling effect is not significant and can only maintain air circulation.
[0005] Fog cannon cooling: requires continuous water replenishment, resulting in high water consumption. Long-term use will cause scale to form on the transformer surface, affecting the transformer's normal heat dissipation in the future.
[0006] Ice cooling: low cooling efficiency and short cooling cycle. Utility Model Content
[0007] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a heavy overload main transformer energy storage cooling device.
[0008] To achieve the above objectives, the present invention can adopt the following technical solution:
[0009] This utility model provides a cooling and heat storage device for a main transformer under heavy overload, comprising a housing, a first chamber and a second chamber within the housing, a heat dissipation device within the first chamber and a cooling device within the second chamber, a first air inlet on the housing, the heat dissipation device comprising a radiator disposed within the housing and corresponding to the first air inlet, and a wet film disposed within the radiator, a first air outlet located in the first chamber on the housing, and a second air inlet on the housing, the cooling device comprising an evaporator disposed within the housing and corresponding to the second air inlet, an air inlet heat exchanger disposed between the second air inlet and the evaporator, and a cold energy release device disposed within the housing, the cold energy release device being able to release cold energy to act on the air inlet heat exchanger, and a second air outlet located in the second chamber on the housing.
[0010] Furthermore, there are two radiators and two first air inlets, both located on both sides of the first chamber.
[0011] Furthermore, an axial flow fan located at the first air outlet is provided on the housing.
[0012] Furthermore, a water tank located below the evaporator is also provided inside the housing, and a collection port is provided on the top of the water tank. The water in the water tank can be transported to the wet membrane through a pipeline.
[0013] Furthermore, the water tank is equipped with an internal heat exchanger, and the cold energy release device can release cold energy to act on the internal heat exchanger.
[0014] Furthermore, the evaporator is a multi-stage evaporator.
[0015] Furthermore, the radiator is a double-layer radiator, and the wet film is located between the double-layer radiator.
[0016] Furthermore, a centrifugal fan is also provided in the second chamber, which is used to output the air after passing through the evaporator from the second air outlet.
[0017] Furthermore, the cold energy release device includes an energy storage box and a phase change energy storage material disposed inside the energy storage box.
[0018] The technical solution provided by this utility model has at least the following technical effects:
[0019] The overload main transformer energy storage cooling and refrigeration device provided by this utility model allows ambient air to enter the second chamber through the second air inlet, flowing sequentially through the air inlet heat exchanger and evaporator for cooling. Simultaneously, a cold energy release device releases cold energy to the air inlet heat exchanger, significantly improving its cooling effect. The cooled air is then output through the second air outlet, further cooling the transformer radiator. This results in good cooling performance and high heat exchange efficiency.
[0020] The cooling capacity release device releases cooling capacity to the heat exchanger inside the tank. The heat exchanger inside the tank exchanges heat with the water inside the tank. The cooling water is introduced into the wet film through the pipeline. Under the action of the wet film, the ambient air passes through the wet film to form low temperature air below the ambient temperature. The low temperature air cools the radiator, ensuring the cooling effect of the main transformer energy storage cooling and refrigeration device under heavy overload. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, 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.
[0022] Figure 1 This is a schematic diagram of the structure of the overload main transformer energy storage cooling and refrigeration device according to an embodiment of this utility model;
[0023] Figure 2 This is an internal structural diagram of the overload main transformer energy storage cooling and refrigeration device according to an embodiment of this utility model;
[0024] Figure 3 This is a schematic diagram of the structure of the water tank according to an embodiment of this utility model;
[0025] Figure 4 This is a structural schematic diagram of the energy storage box according to an embodiment of the present invention.
[0026] Explanation of main reference numerals in the attached drawings: 1. Shell; 2. First chamber; 3. Second chamber; 4. First air inlet; 5. Radiator; 6. Wet film; 7. First air outlet; 8. Second air inlet; 9. Evaporator; 10. Air inlet heat exchanger; 11. Second air outlet; 12. Water tank; 121. Collection port; 13. Energy storage box; 14. Internal heat exchanger; 15. Centrifugal fan. Detailed Implementation
[0027] The embodiments of this utility model are described in detail below. These embodiments are provided to better illustrate the utility model, but are not intended to limit the scope of the utility model to the described embodiments. Any non-essential improvements and adjustments made to the implementation schemes by those skilled in the art based on the above description of the utility model shall still fall within the protection scope of this utility model.
[0028] According to one embodiment of the present invention, such as Figure 1 , Figure 2 As shown in the figure, this embodiment discloses a heavy overload main transformer energy storage cooling device, including a housing 1. The housing 1 is provided with a first chamber 2 and a second chamber 3, which are arranged vertically. The first chamber 2 is provided with a heat dissipation device, which is used to dissipate the heat generated by the heavy overload main transformer energy storage cooling device itself. The second chamber 3 is provided with a cooling device, which is used to cool the ambient air and dissipate heat from the transformer radiator.
[0029] A first air inlet 4 is provided on the housing 1. Specifically, a first air inlet 4 is provided on both the front and rear sides of the first chamber 2. A mesh screen is provided at the first air inlet 4.
[0030] The heat dissipation device includes a radiator 5 disposed within the housing 1 and corresponding to the position of the first air inlet 4, and a wet film 6 disposed within the radiator 5. The radiator 5 is used for heat dissipation of the main transformer energy storage cooling device itself under heavy overload conditions. In this embodiment, the radiator 5 is a double-layer radiator, and the wet film 6 is located between the two layers of radiators. Air first passes through one layer of radiator for heat dissipation, then enters the wet film 6 for cooling, and then passes through the other layer of radiator.
[0031] A first air outlet 7 is provided on the housing 1, located at the top of the first chamber 2. Two axial flow fans (not shown) are installed at the first air outlet 7. The axial flow fans draw in ambient air from the first air inlet 4, and after being cooled by the wet film 6, it forms low-temperature air. The low-temperature air cools the radiator 5, thereby ensuring the heat dissipation effect of the overload main transformer energy storage cooling device. Then the air is discharged from the first air outlet 7.
[0032] A second air inlet 8 is provided on the housing 1, and this second air inlet 8 is located on the left side of the second chamber 3. The refrigeration device includes an evaporator 9 disposed inside the housing 1 and corresponding to the position of the second air inlet 8, an air inlet heat exchanger 10 disposed between the second air inlet 8 and the evaporator 9, and a cold energy release device disposed inside the housing 1.
[0033] In this embodiment, the evaporator 9 is a four-stage evaporator 9. The cold energy release device can release cold energy and act on the air inlet heat exchanger 10.
[0034] A second air outlet 11 is provided on the casing 1, located in the second chamber 3, and is situated in front of the first chamber 2. A centrifugal fan 15 is installed in the second chamber 3. Under the action of the centrifugal fan 15, air enters from the second air inlet 8, is first cooled by the air inlet heat exchanger 10, then further cooled by the evaporator 9, and finally discharged through the second air outlet 11. This effectively cools the transformer radiator, resulting in good cooling effect and high heat exchange efficiency.
[0035] To achieve water supply for the wet film 6 and recycling of condensate from the evaporator 9, such as Figure 3 As shown, a water tank 12 is also provided inside the housing 1, located below the evaporator 9. The top of the water tank 12 is provided with a collection port 121, which can collect the condensate produced by the evaporator 9. The water tank 12 is connected to a circulating water pump through a pipeline, and the circulating water pump transports the condensate to the wet film 6, thereby achieving the recycling of the condensate.
[0036] To cool the condensate, an internal heat exchanger 14 is installed inside the water tank 12. This internal heat exchanger 14 is a spiral stainless steel coil, which can fully contact the water, improve heat exchange efficiency, thereby reducing the water temperature and improving the heat exchange efficiency of the wet film 6.
[0037] In this embodiment, as Figure 4As shown, the cold energy release device includes an energy storage tank 13 and a phase change energy storage material disposed within the energy storage tank 13. The phase change energy storage material can be made of materials such as wax, graphite composite sodium acetate, or a mixture of chloride salts. It achieves the storage and release of cold energy through a solid-liquid phase change process. The phase change energy storage material has an independent refrigeration system, including a phase change cold storage module and a control system (which are well known to those skilled in the art and are not described in detail in this embodiment). The cold energy generated by the phase change energy storage material can be applied to the air inlet heat exchanger 10 and the heat exchanger 14 inside the tank via pipelines, simultaneously improving heat exchange efficiency.
[0038] Cooling Principle: Before use, add an appropriate amount of water to the water tank 12 to ensure that the wet film 6 is in a cooling state. In this state, ambient air enters the second chamber 3 through the second air inlet 8, and flows sequentially through the air inlet heat exchanger 10 and the evaporator 9 for cooling. At the same time, the cold energy release device releases cold energy to the air inlet heat exchanger 10, significantly improving the cooling effect of the air inlet heat exchanger 10. The cooled air is output through the second air outlet 11, thereby cooling the transformer radiator. The cooling effect is good and the heat exchange efficiency is high.
[0039] Meanwhile, the condensate produced by the evaporator 9 is collected in the water tank 12. With water in the tank 12, the cooling energy generated by the cooling release device acts on the heat exchanger 14 inside the tank, improving its heat exchange efficiency and cooling the condensate. The cooled condensate is then transported to the wet film 6, ensuring that the wet film 6 remains in a cooled state.
[0040] Ambient air enters the radiator 5 through the first air inlet 4. After entering the radiator 5, the ambient air is cooled by the action of the wet film 6. The cooled air can further cool the radiator 5, thereby ensuring the heat dissipation effect of the overload main transformer energy storage cooling device. Finally, the ambient air is discharged through the first air outlet 7.
[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A heavy overload main transformer energy storage cooling and refrigeration device, characterized in that, The device includes a housing (1), which contains a first chamber (2) and a second chamber (3). A heat dissipation device is located in the first chamber (2), and a cooling device is located in the second chamber (3). A first air inlet (4) is located on the housing (1). The heat dissipation device includes a radiator (5) located within the housing (1) and corresponding to the first air inlet (4), and a wet film (6) located within the radiator (5). A first outlet is located in the first chamber (2) on the housing (1). Air inlet (7), a second air inlet (8) is provided on the housing (1), the refrigeration device includes an evaporator (9) disposed in the housing (1) and corresponding to the position of the second air inlet (8), an air inlet heat exchanger (10) disposed between the second air inlet (8) and the evaporator (9), and a cold energy release device disposed in the housing (1). The cold energy release device can release cold energy to act on the air inlet heat exchanger (10). A second air outlet (11) is provided on the housing (1) located in the second chamber (3).
2. The heavy overload main transformer energy storage cooling and refrigeration device according to claim 1, characterized in that, Two radiators (5) and two first air inlets (4) are provided, both located on both sides of the first chamber (2).
3. The heavy overload main transformer energy storage cooling and refrigeration device according to claim 2, characterized in that, An axial flow fan is provided on the housing (1) at the first air outlet (7).
4. The overloaded main transformer energy storage cooling and refrigeration device according to claim 1, characterized in that, The housing (1) is also provided with a water tank (12) located below the evaporator (9). The top of the water tank (12) is provided with a collection port (121). The water in the water tank (12) can be transported to the wet membrane (6) through a pipeline.
5. The heavy overload main transformer energy storage cooling and refrigeration device according to claim 4, characterized in that, The water tank (12) is equipped with an in-tank heat exchanger (14), and the cold energy release device can release cold energy to act on the in-tank heat exchanger (14).
6. The overloaded main transformer energy storage cooling and refrigeration device according to claim 1, characterized in that, The evaporator (9) is a multi-stage evaporator (9).
7. The overloaded main transformer energy storage cooling and refrigeration device according to claim 1, characterized in that, The radiator (5) is a double-layer radiator (5), and the wet film (6) is located between the double-layer radiators (5).
8. The overloaded main transformer energy storage cooling and refrigeration device according to claim 1, characterized in that, The second chamber (3) is also equipped with a centrifugal fan (15), which is used to output the air after passing through the evaporator (9) from the second air outlet (11).
9. The overloaded main transformer energy storage cooling and refrigeration device according to claim 1, characterized in that, The cold energy release device includes an energy storage box (13) and a phase change energy storage material disposed in the energy storage box (13).