Novel dry-type transformer cooling fan

Abstract

The utility model relates to the technical field of transformer cooling, in particular to a novel dry-type transformer cooling fan which comprises a cooling air duct structure. A cooling ventilation structure used for active air supply is assembled at the bottom of the cooling air duct structure, and the cooling air duct structure is provided with a circulating cooling structure used for wind power heat conduction cooling. The cooling air duct structure comprises an air box body, and an air blocking bottom plate and an air blocking top plate are fixedly assembled on the inner side of the air box body. According to the utility model, moisture in the air is condensed into water drops in the cooling process through the conical design of the water condensing cylinder, dehumidification is further carried out through the action of the circulating pump and the semiconductor cooler, the dryness of the air in the transformer is improved, and the semiconductor cooler refrigerates the cooling liquid in the cooling liquid box, so that the cooling effect is improved. And the circulating pump circularly pumps the cooling liquid into the inner side of the circulating coil pipe, so that the heat dissipation fins perform heat conduction refrigeration, and the air temperature is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of transformer cooling, and particularly relates to a new type of dry-type transformer cooling fan. Background Art

[0002] A transformer is a device that changes the voltage of alternating current through electromagnetic induction. According to the difference in cooling media, it can be divided into oil-immersed transformers and dry-type transformers. During the operation of a dry-type transformer, due to electromagnetic action, a large amount of heat is generated in its windings. The traditional cooling methods mainly include natural air cooling and forced air cooling. Forced air cooling means using a cooling fan to dissipate heat from the windings. The Chinese patent (authorization announcement number CN207441418U) discloses a new type of dry-type transformer cooling fan, which includes a blower, a ventilation duct, a duct connector, and an air outlet duct. The blower is installed at both ends of the ventilation duct. A duct connector is connected to the middle position of the ventilation duct, and the other end of the duct connector is connected to the air outlet duct. The air outlet duct is in a horn-shaped structure, the air outlet of the air outlet duct is in a rectangular structure, and the end of the air outlet of the air outlet duct is in a mesh structure. Two air guiding plates are installed on the inner wall of the ventilation duct of the duct connector, and a desiccant placement structure is arranged on the inner wall of the air inlet of the blower. The new type of dry-type transformer cooling fan provided by this utility model greatly improves the wind force of the cooling fan through the combined action of two blowers and a series of optimized designs of the air supply duct, and has good heat dissipation. This patented technology solves the problem that the heat of the transformer windings cannot be dissipated in time or the heat dissipation effect is not good, which may cause serious accidents in severe cases and affect the service life of the transformer in mild cases.

[0003] However, in the prior art, after blowing humid air towards the transformer, it is easy to cause water corrosion damage to the internal electronic devices of the transformer, and it is necessary to solve the problem of cooling and dehumidifying the moisture in the blown air in the prior art.

[0004] Therefore, those skilled in the art provide a new type of dry-type transformer cooling fan to solve the problems raised in the above background art. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides:

[0006] A new type of dry-type transformer cooling fan, comprising: a cooling air duct structure; a cooling ventilation structure for active air supply is assembled at the bottom of the cooling air duct structure, and a circulating cooling structure for wind-force heat conduction and cooling is assembled on the cooling air duct structure; the cooling air duct structure includes an air box body, a wind-shielding bottom plate and a wind-shielding top plate are fixedly assembled inside the air box body, a plurality of cooling cylinders are fixedly arranged in a rectangular array inside the wind-shielding bottom plate, and a condensate cylinder is hermetically connected to the top of the cooling cylinder; the condensate cylinder is fixedly assembled on the inner wall of the wind-shielding top plate, and heat dissipation fins are fixed inside the cooling cylinder.

[0007] Preferably: the cooling ventilation structure includes a bottom hopper cover hermetically fixed at the bottom of the air box body, a ventilation box is connected to the bottom end of the bottom hopper cover, and a waterproof fan is assembled inside the ventilation box.

[0008] The waterproof fan is used to compress the air outside the ventilation box and supply it to the inside of the air box body.

[0009] Preferably: an air inlet groove is formed through the side of the ventilation box, and a dust filter screen is assembled along the inner edge of the air inlet groove.

[0010] Preferably: a water leakage hopper is connected through the bottom end of the ventilation box, and a water storage tank is connected to the bottom of the water leakage hopper.

[0011] The water storage tank is used to collect the water droplets of condensation and dehumidification.

[0012] Preferably: the circulating cooling structure includes a circulating coil pipe penetrating through the condensate cylinder and the heat dissipation fins, one end of the circulating coil pipe is connected with a circulating pump, and the other end of the circulating coil pipe is connected with a coolant tank.

[0013] Preferably: the water pumping end of the circulating pump is connected to the inside of the coolant tank.

[0014] Preferably: a semiconductor refrigerator is installed at the bottom of the coolant tank, the refrigerating end of the semiconductor refrigerator is located inside the coolant tank, and the heat dissipation end of the semiconductor refrigerator is arranged outside the coolant tank. A wind pressure hopper is installed at the heat dissipation end of the semiconductor refrigerator, and a heat dissipation fan is installed inside the bottom of the wind pressure hopper.

[0015] An installation frame for device assembly is fixedly arranged on the outer edge of the top of the air box body;

[0016] A controller is installed on the outer wall of the coolant tank.

[0017] A replenishing pipe is connected through the top of the coolant tank.

[0018] The technical effects and advantages of the present utility model:

[0019] This utility model compresses wind through a waterproof fan, increasing the wind blowing into the transformer, thereby improving the heat dissipation efficiency. When air passes through the cooling cylinder, due to contact with the cold air on the inner wall, the moisture in the air condenses into water droplets. This process also reduces the temperature of the air, contributing to enhancing the heat dissipation effect of the transformer. The reduction in the wind outlet area strengthens the wind blowing into the transformer, which helps improve the heat dissipation efficiency and ensure the stability of the temperature during the operation of the transformer.

[0020] This utility model, through the conical design of the condensate cylinder, enables the moisture in the air to condense into water droplets during the cooling process. Through the action of the circulation pump and the semiconductor refrigerator, further dehumidification is achieved, improving the dryness of the air inside the transformer. The semiconductor refrigerator cools the coolant inside the coolant tank, and the circulation pump circulates the coolant into the inner side of the circulation coil, enabling the heat dissipation fins to conduct heat for refrigeration and further reducing the air temperature. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a new type of dry-type transformer cooling fan provided by this application;

[0022] Figure 2 is a schematic side structural diagram of a new type of dry-type transformer cooling fan provided by this application;

[0023] Figure 3 is a schematic structural diagram of the cooling air duct structure of a new type of dry-type transformer cooling fan provided by this application;

[0024] Figure 4 is a schematic structural diagram of the cooling cylinder of a new type of dry-type transformer cooling fan provided by this application;

[0025] Figure 5 is a schematic structural diagram of the circulating cooling structure of a new type of dry-type transformer cooling fan provided by this application.

[0026] In the figure:

[0027] 1. Cooling air duct structure; 101. Wind box body; 102. Windshield bottom plate; 103. Cooling cylinder; 104. Condensate cylinder; 105. Windshield top plate; 106. Heat dissipation fins;

[0028] 2. Cooling ventilation structure; 201. Bottom hopper cover; 202. Ventilation box; 203. Waterproof fan; 204. Dust filter net; 205. Leakage hopper; 206. Water storage tank;

[0029] 3. Circulating cooling structure; 301. Circulation coil; 302. Circulation pump; 303. Coolant tank; 304. Supplementary pipe; 305. Semiconductor refrigerator; 306. Wind pressure hopper; 307. Heat dissipation fan;

[0030] 4. Installation frame; 5. Controller. Detailed implementation

[0031] The present utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The examples of the present utility model are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present utility model to the disclosed form. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present utility model, and to enable those of ordinary skill in the art to understand the present utility model and thus design various embodiments with various modifications suitable for specific purposes.

[0032] Embodiment, please refer to Figures 1 to 5 In this embodiment, a new type of dry-type transformer cooling fan is provided, including: a cooling air duct structure 1; a cooling ventilation structure 2 for actively supplying air is assembled at the bottom of the cooling air duct structure 1, and a circulating cooling structure 3 for wind heat conduction and cooling is assembled on the cooling air duct structure 1; the cooling air duct structure 1 includes an air box body 101, a wind shielding bottom plate 102 and a wind shielding top plate 105 are fixedly assembled inside the air box body 101, a plurality of cooling cylinders 103 are fixedly arranged in a rectangular array inside the wind shielding bottom plate 102, and a condensate cylinder 104 is hermetically connected to the top of the cooling cylinder 103; the condensate cylinder 104 is fixedly assembled on the inner wall of the wind shielding top plate 105, and heat dissipation fins 106 are fixed inside the cooling cylinder 103.

[0033] The cooling ventilation structure 2 includes a bottom hopper cover 201 hermetically fixed at the bottom of the air box body 101, the bottom end of the bottom hopper cover 201 is connected to a ventilation box 202, and a waterproof fan 203 is assembled inside the ventilation box 202. The waterproof fan 203 is used to compress the air outside the ventilation box 202 and supply it to the inside of the air box body 101. An air inlet groove is formed through the side of the ventilation box 202, and a dust filter net 204 is assembled along the inner edge of the air inlet groove. The bottom end of the ventilation box 202 is connected through a water leakage hopper 205, and the bottom of the water leakage hopper 205 is connected to a water storage tank 206. The water storage tank 206 is used to collect the water droplets of condensation and dehumidification.

[0034] The circulating cooling structure 3 includes a circulating coil 301 penetrating through the condensate cylinder 104 and the heat dissipation fins 106, one end of the circulating coil 301 is connected to a circulating pump 302, and the other end of the circulating coil 301 is connected to a coolant tank 303. The water pumping end of the circulating pump 302 is connected to the inside of the coolant tank 303.

[0035] A semiconductor refrigerator 305 is installed at the bottom of the coolant tank 303. The refrigerating end of the semiconductor refrigerator 305 is located inside the coolant tank 303, and the heat dissipating end of the semiconductor refrigerator 305 is arranged outside the coolant tank 303. A wind pressure hopper 306 is installed at the heat dissipating end of the semiconductor refrigerator 305, and a cooling fan 307 is installed inside the bottom of the wind pressure hopper 306. An installation frame 4 for device assembly is fixed on the outer edge of the top of the wind box body 101; a controller 5 is installed on the outer wall of the coolant tank 303. A replenishing pipe 304 is connected through the top of the coolant tank 303.

[0036] According to the above embodiments, the working principle of the present invention is as follows:

[0037] The device can boost the wind force, increasing the wind force blowing into the transformer.

[0038] The wind force is compressed by the waterproof fan 203 and blown into the cooling cylinder 103 inside the wind box body 101. Passing through the conical condensate cylinder 104 at the top of the cooling cylinder 103, when the cold air contacts the inner wall, it can be pressurized and condensed into water while reducing the outlet area of the wind force, enhancing the wind force blowing into the transformer for better heat dissipation.

[0039] For condensate dehumidification, the circulating pump 302 and the semiconductor refrigerator 305 are started. The semiconductor refrigerator 305 cools the coolant inside the coolant tank 303. The circulating pump 302 circulates and pumps the coolant inside the coolant tank 303 into the inner side of the circulating coil 301, enabling the circulating coil 301 to conduct heat and cool the contacting heat dissipation fins 106, cooling the passing air. When the cooled air rises and contacts the condensate cylinder 104, condensate water droplets are generated, and the water droplets drip through the waterproof fan 203 and fall into the water leakage hopper 205 and flow into the storage tank 206 for storage.

[0040] In the present utility model, unless otherwise clearly defined and limited, for example, it can be fixedly connected, detachably connected, or integrated; it can be mechanically connected or electrically connected; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. Unless otherwise clearly defined, for those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0041] Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art and related fields based on the embodiments in the present utility model without creative efforts shall fall within the scope of protection of the present utility model. The structures, devices, and operation methods not specifically described and explained in the present utility model shall be implemented by conventional means in the art unless otherwise specified and limited.

Claims

1. A new type of dry-type transformer cooling fan, characterized in that, Including: A cooling air duct structure (1); a cooling ventilation structure (2) for active air supply is assembled at the bottom of the cooling air duct structure (1), and a circulating cooling structure (3) for wind-force heat conduction cooling is assembled on the cooling air duct structure (1); The cooling air duct structure (1) includes an air box body (101), a wind-shielding bottom plate (102) and a wind-shielding top plate (105) are fixedly assembled inside the air box body (101), a plurality of cooling cylinders (103) are fixedly arranged in a rectangular array inside the wind-shielding bottom plate (102), and a condensate cylinder (104) is hermetically connected to the top of the cooling cylinder (103); The condensate cylinder (104) is fixedly assembled on the inner wall of the wind-shielding top plate (105), and heat dissipation fins (106) are fixed inside the cooling cylinder (103).

2. The novel dry-type transformer cooling fan according to claim 1, characterized in that, The cooling ventilation structure (2) includes a bottom hopper cover (201) hermetically fixed to the bottom of the air box body (101), the bottom end of the bottom hopper cover (201) is connected to a ventilation box (202), and a waterproof blower (203) is assembled inside the ventilation box (202).

3. The novel dry-type transformer cooling fan according to claim 2, characterized in that, An air inlet groove is formed through the side surface of the ventilation box (202), and a dust filter net (204) is assembled along the air inlet groove.

4. The novel dry-type transformer cooling fan according to claim 3, characterized in that, The bottom end of the ventilation box (202) is connected through a water leakage hopper (205), and the bottom of the water leakage hopper (205) is connected to a water storage tank (206).

5. A novel dry-type transformer cooling fan according to claim 1, characterized in that, The circulating cooling structure (3) includes a circulating coil pipe (301) penetrating through the condensate cylinder (104) and the heat dissipation fins (106), one end of the circulating coil pipe (301) is connected to a circulating pump (302), and the other end of the circulating coil pipe (301) is connected to a coolant tank (303).

6. The novel dry-type transformer cooling fan according to claim 5, wherein The water pumping end of the circulating pump (302) is connected to the inside of the coolant tank (303).

7. A novel dry-type transformer cooling fan according to claim 5, characterized in that, A semiconductor cooler (305) is installed at the bottom of the coolant tank (303), the refrigerating end of the semiconductor cooler (305) is located inside the coolant tank (303), and the heat dissipation end of the semiconductor cooler (305) is arranged outside the coolant tank (303). A wind pressure hopper (306) is installed at the heat dissipation end of the semiconductor cooler (305), and a heat dissipation fan (307) is installed inside the bottom of the wind pressure hopper (306).

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