CN213959940U - Wind power converter cooling device - Google Patents

Abstract

The utility model provides a wind power converter cooling device, which comprises a cabinet body internally provided with a wind power converter, a cooling box, a cooling mechanism, a heat dissipation mechanism, a temperature sensor and a controller, wherein the cabinet body is provided with an air inlet and an air outlet, the outer side wall of the cabinet body is horizontally provided with a supporting plate, the cooling box is placed above the cabinet body, cooling liquid is filled in the cooling box, the side wall of the cooling box is embedded with a refrigerator, the cooling mechanism is used for connecting the cooler and the cabinet body, the cooling mechanism comprises a first cooling unit and a second cooling unit, the first cooling unit comprises an air guide pipe, an air inlet pipe and an air outlet pipe, the second cooling unit comprises a water pump, an water inlet pipe and a water outlet pipe, the heat dissipation mechanism comprises a rotating rod, a driving motor and a heat dissipation device sleeved on the rotating rod, the controller is connected with the temperature sensor and the second cooling unit, the first cooling unit continuously reduces the temperature in the cabinet body, when the temperature sensor detects that the temperature in the cabinet body is too high, the controller controls the second cooling unit to work, and the cooling efficiency is improved.

Description

Wind power converter cooling device

Technical Field

The utility model relates to a wind-powered electricity generation converter technical field particularly, relates to a wind-powered electricity generation converter cooling device.

Background

Wind energy is renewable, clean and pollution-free energy, becomes an increasingly concerned environment-friendly energy-saving energy source, and is also concerned by Chinese people when replacing traditional energy sources. But the instability of the method brings great difficulty to wind power integration and large-scale application. The wind power converter converts unstable wind power into electric energy with voltage, frequency and phase meeting grid-connected requirements through rectification and inversion principles, and is an indispensable link in wind power generation. In this regard, the service life and the working stability of the wind power converter are receiving social attention.

The wind power converter can generate a large amount of heat in the working process, for example, the heat generated by a 1.5MW converter can reach 60kw, and if the heat is accumulated in the control cabinet and is not taken away in time, the service life of the converter can be seriously influenced. In order to ensure the normal operation of the converter, the converter needs to be cooled.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wind-powered electricity generation converter cooling device, it adopts two kinds of cooling methods to cool off, effectively improves cooling effect, simple structure.

The embodiment of the utility model discloses a realize through following technical scheme:

a wind power converter cooling device comprises a cabinet body, a cooling box, a cooling mechanism, a temperature sensor and a controller, wherein the cabinet body is internally provided with a wind power converter, the cabinet body is provided with an air inlet and an air outlet, the outer side wall of the cabinet body is horizontally provided with a supporting plate, the cooling box is placed above the cabinet body, cooling liquid is filled in the cooling box, a refrigerator is embedded in the side wall of the cooling box, the cooling mechanism is used for connecting the cooling box and the cabinet body, the cooling mechanism comprises a first cooling unit and a second cooling unit, the controller is respectively connected with the second cooling unit and the temperature sensor, and the temperature sensor is arranged in the cabinet body;

the cabinet body is characterized in that the first cooling unit is cooled in an air cooling mode, the second cooling unit comprises a water pump, an inlet pipe and an outlet pipe, the water pump is connected with the controller, the inlet pipe and the outlet pipe respectively, the water pump is arranged on the supporting plate, one end of the inlet pipe is connected with the cooling box in a penetrating mode, the other end of the inlet pipe is connected with the water pump, one end of the outlet pipe is connected with the cooling box, and the other end of the outlet pipe is connected with the water pump.

Preferably, the first cooling unit comprises an air guide pipe, an air inlet pipe and an air outlet pipe, the air guide pipe is arranged in the cooling box, the top of the air guide pipe is fixedly communicated with the air inlet pipe, the bottom of the air guide pipe is fixedly communicated with the air outlet pipe, one end, far away from the air guide pipe, of the air outlet pipe is communicated with the air inlet, and one end, far away from the air guide pipe, of the air inlet pipe is arranged outside the cooling box.

Preferably, the cabinet body includes the first cabinet body, the second cabinet body, the third cabinet body and the fourth cabinet body that the structure is the same, the first cabinet body with the second cabinet body is close to fixed intercommunication between the lateral wall of bottom, the second cabinet body with the third cabinet body is close to fixed intercommunication between the lateral wall at top, the third cabinet body with the fourth cabinet body is close to fixed intercommunication between the lateral wall of bottom, the air intake sets up the top lateral wall of the first cabinet body, the air outlet sets up the top lateral wall of the fourth cabinet body, temperature sensor sets up in the fourth cabinet is internal, the backup pad sets up the lateral wall of the fourth cabinet body.

Preferably, wind power converter cooling device is still including heat dissipation mechanism, heat dissipation mechanism sets up the below of air outlet, heat dissipation mechanism include driving motor, with bull stick and cover that driving motor connects are established a plurality of heat abstractor on the bull stick, driving motor sets up in the backup pad, the bull stick runs through in proper order the fourth cabinet body, the third cabinet body, the second cabinet body and the first cabinet body, and rotate through the inner wall of the first bearing and the first cabinet body and be connected.

Preferably, the heat dissipation device comprises a first bevel gear and a second bevel gear, the first bevel gear is sleeved on the rotating rods of the first cabinet body and the third cabinet body, the second bevel gear is sleeved on the rotating rods of the second cabinet body and the fourth cabinet body, the first bevel gear is meshed with a third bevel gear, the second bevel gear is meshed with a fourth bevel gear, a rotating shaft is further rotatably connected below the third bevel gear and the fourth bevel gear, and the other end of the rotating shaft is connected with fan blades.

Preferably, the roof of the first cabinet body, the second cabinet body, the third cabinet body and the fourth cabinet body is further fixedly provided with an L-shaped plate for fixing a heat dissipation device, the rotating rod penetrates through the L-shaped plate, and the horizontal part of the L-shaped plate is connected with the rotating shaft through a second bearing.

Preferably, a hollow plate is horizontally laid in the cabinet body and arranged below the fan blades, and a filtering and drying layer is further arranged inside the hollow plate.

Preferably, the water inlet pipe is placed on the hollowed-out plate.

Preferably, a sealing ring is arranged at the joint of the water inlet pipe and the water outlet pipe with the cooling box.

Preferably, the cold end of the refrigerator is arranged in the cooling box, and the hot end of the refrigerator is arranged outside the cooling box.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

1. the utility model adopts a method of mainly air cooling mode and secondarily water cooling mode, which effectively improves the cooling efficiency of the cooling device of the wind power converter;

2. the utility model discloses set up the fretwork board below heat abstractor, the fretwork board is inside still to be equipped with and filter the dry layer, and the fretwork board can be placed the flabellum that drops because of rotating, prevents that the flabellum from damaging wind power converter subassembly, and the dry layer of filtration can dry the gas in the cabinet body, prolongs the life of wind power converter subassembly;

the utility model relates to a rationally, simple structure, it is with low costs and the practicality is strong.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a wind power converter cooling device provided in embodiment 1 of the present invention;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is an enlarged schematic view at B of FIG. 1;

icon: 1-wind power converter, 2-cabinet body, 201-first cabinet body, 202-second cabinet body, 203-third cabinet body, 204-fourth cabinet body, 3-cooling box, 4-temperature sensor, 5-air inlet, 6-air outlet, 7-supporting plate, 8-cooling liquid, 9-refrigerator, 10-water pump, 11-water inlet pipe, 12-water outlet pipe, 13-air guide pipe, 14-air inlet pipe, 15-air outlet pipe, 16-driving motor, 17-rotating rod, 18-heat dissipation device, 1801-first bevel gear, second bevel gear, 1802-third bevel gear, 1803-fourth bevel gear, 19-rotating shaft, 20-fan blade, 21-L-shaped plate, 22-hollowed plate, 23-filtering and drying layer, 24-sealing ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

As shown in fig. 1-3, a wind power converter cooling device includes a cabinet 2 with a wind power converter 1 therein, a cooling box 3, a cooling mechanism, a temperature sensor 4 and a controller, the cabinet 2 is provided with an air inlet 5 and an air outlet 6, a support plate 7 is horizontally arranged on the outer side wall of the cabinet 2, the cooling box 3 is placed above the cabinet 2, cooling liquid 8 is filled in the cooling box 3, a refrigerator 9 is embedded on the side wall of the cooling box 3, the cooling mechanism is used for connecting the cooling box 3 and the cabinet 2, the cooling mechanism includes a first cooling unit and a second cooling unit, the controller is respectively connected with the second cooling unit and the temperature sensor 4, and the temperature sensor 4 is arranged inside the cabinet 2; the cabinet body 2 is used for placing 1 subassembly of a plurality of wind power converter, and cooler bin 3 is used for placing coolant liquid 8, and refrigerator 9 is used for cooling coolant liquid 8, and first cooling unit and second cooling unit are used for connecting cooler bin 3 and the cabinet body 2, bring the low temperature in cooler bin 3 into the cabinet body 2 in, make the temperature of the internal 2 of cabinet reduce, thereby reduce the temperature of 1 subassembly of wind power converter the utility model discloses in, first cooling unit is from lasting the temperature that reduces the internal 2 of cabinet, and the temperature of the internal 2 of temperature sensor 4 monitoring cabinet, when the temperature is higher than the value that the controller predetermines, the controller control second cooling unit participates in cooling work, and then improves cooling efficiency. The cooling liquid 8 may be water or another liquid.

The first cooling unit cools the cabinet body 2 in an air cooling mode, the first cooling unit comprises an air guide pipe 13, an air inlet pipe 14 and an air outlet pipe 15, the air guide pipe 13 is arranged in the cooling box 3, the top of the air guide pipe 13 is fixedly communicated with the air inlet pipe 14, the bottom of the air guide pipe 13 is fixedly communicated with the air outlet pipe 15, one end, far away from the air guide pipe 13, of the air outlet pipe 15 is communicated with the air inlet 5, and one end, far away from the air guide pipe 13, of the air inlet pipe 14 is arranged outside the cooling box 3; the air guide pipe 13 is arranged in the cooling box 3, under the action of the cooling liquid 8, the temperature in the air guide pipe 13 is reduced, the air enters the air guide pipe 13 from the air inlet pipe 14 to obtain a cooled air body, the temperature of the air body is reduced, the air enters the cabinet body 2 from the air outlet pipe 15 and is fully contacted with the wind power converter 1 component in the cabinet body 2, and the temperature of the wind power converter 1 component is reduced.

The second cooling unit comprises a water pump 10, a water inlet pipe 11 and a water outlet pipe 12, the water pump 10 is respectively connected with a controller, the water inlet pipe 11 and the water outlet pipe 12, the water pump 10 is arranged on the supporting plate 7, one end of the water inlet pipe 11 is connected with the cooling box 3 and penetrates through the cabinet body 2, the other end of the water inlet pipe 11 is connected with the water pump 10, one end of the water outlet pipe 12 is connected with the cooling box 3, and the other end of the water outlet pipe 12 is connected with the water pump 10. The refrigerator 9 makes the cooling liquid 8 in the cooling box 3 continuously be at a lower temperature, the cooling liquid 8 flows through the cabinet body 2 from the water inlet pipe 11 under the action of the water pump 10, and then returns to the cooling box 3 through the water outlet pipe 12, and the circulation is carried out, so that the cooling liquid 8 in the water inlet pipe 11 reduces the temperature in the cabinet body 2, takes away a part of heat, and increases the cooling efficiency.

The cabinet body 2 includes the same first cabinet body 201 of structure, the second cabinet body 202, third cabinet body 203 and fourth cabinet body 204, first cabinet body 201 and the second cabinet body 202 are close to fixed intercommunication between the lateral wall of bottom, second cabinet body 202 and third cabinet body 203 are close to fixed intercommunication between the lateral wall at top, third cabinet body 203 and fourth cabinet body 204 are close to fixed intercommunication between the lateral wall of bottom, air intake 5 sets up the top lateral wall at first cabinet body 201, air outlet 6 sets up the top lateral wall at fourth cabinet body 204, temperature sensor 4 sets up in fourth cabinet body 204, backup pad 7 sets up the lateral wall at fourth cabinet body 204. The wind power converter 1 assembly is usually installed in the plurality of cabinets 2, the first cabinet 201, the second cabinet 202, the third cabinet 203 and the fourth cabinet 204 are two-two communicated, so that cold air of the first cooling unit can enter the first cabinet 201, the second cabinet 202, the third cabinet 203 and the fourth cabinet 204 in sequence, the temperature sensor 4 is arranged in the fourth cabinet 204 which is farthest away from the air outlet 6, and the accuracy of confirming whether auxiliary cooling of the second cooling unit is needed is improved by judging the temperature in the fourth cabinet 204.

Wind power converter cooling device still includes heat dissipation mechanism, and heat dissipation mechanism includes driving motor 16, the bull stick 17 and the cover that is connected with driving motor 16 establish a plurality of heat abstractor 18 on the bull stick 17, and driving motor 16 sets up in backup pad 7, and the bull stick 17 runs through fourth cabinet body 204, third cabinet body 203, second cabinet body 202 and first cabinet body 201 in proper order, and rotates through the inner wall of first bearing and first cabinet body 201 and be connected.

The heat dissipation device 18 comprises a first bevel gear 1801 and a second bevel gear 1802, the first bevel gear 1801 is sleeved on the rotating rods 17 of the first cabinet 201 and the third cabinet 203, the second bevel gear 1802 is sleeved on the rotating rods 17 of the second cabinet 202 and the fourth cabinet 204, the first bevel gear 1801 is engaged with a third bevel gear 1803, the second bevel gear 1802 is engaged with a fourth bevel gear 1804, a rotating shaft 19 is rotatably connected below the third bevel gear 1803 and the fourth bevel gear 1804, and fan blades 20 are connected to the other end of the rotating shaft 19.

The top plates of the first cabinet body 201, the second cabinet body 202, the third cabinet body 203 and the fourth cabinet body 204 are also fixedly provided with an L-shaped plate 21 for fixing the heat dissipation device 18, the rotating rod 17 penetrates through the L-shaped plate 21, and the horizontal part of the L-shaped plate 21 is connected with the rotating shaft 19 through a second bearing.

The driving motor 16 drives the rotating rod 17 to rotate, so as to drive the first bevel gear 1801 on the rotating rod 17 to rotate clockwise and drive the second bevel gear 1802 on the rotating rod 17 to rotate counterclockwise, the first bevel gear 1801 drives the third bevel gear 1803 engaged therewith to rotate clockwise so as to drive the rotating shaft 19 and the fan blade 20 to rotate clockwise, the second bevel gear 1802 drives the fourth bevel gear 1804 engaged therewith to rotate counterclockwise so as to drive the rotating shaft 19 and the fan blade 20 to rotate counterclockwise, the external air enters the air guide pipe 13 in the cooling box 3 from the air inlet pipe 14, the refrigerator 9 is started to cool the cooling liquid 8 in the cooling box 3, the external air enters the air guide pipe 13 to perform sufficient heat exchange with the cooling liquid 8 to form cold air, and the cold air performs heat exchange with the air in the first cabinet 201 and the third cabinet 203 from top to bottom under the action of the heat dissipation device 18 in the first cabinet 201 and the third cabinet 203, heat exchange is carried out with the air in the second cabinet body 202 and the fourth cabinet body 204 from bottom to top under the effect of the heat abstractor 18 in the second cabinet body 202 and the fourth cabinet body 204, the air is discharged from the air outlet 6 after the heat exchange with the fourth cabinet body 204 is completed, the first cooling unit is in process, the cooling efficiency of the rear cabinet body 2 is not high, the temperature sensor 4 needs to detect the temperature in the fourth cabinet body 204, when the temperature is higher than the temperature value preset by the controller, the controller starts the power supply of the water pump 10, so that the second cooling unit works, and the cooling efficiency of the cooling device is improved.

A hollow plate 22 is further horizontally laid in the cabinet body 2, the hollow plate 22 is arranged below the fan blades 20, and a filtering and drying layer 23 is further arranged inside the hollow plate 22. The flabellum 20 has the risk that the emergence drops at the in-process of moving, sets up fretwork board 22 in the below of flabellum 20 and the top of wind power converter 1 subassembly, can effectively prevent that the fan from dropping and damaging the condition of wind power converter 1. At the air-cooled in-process, gas temperature step-down probably can produce steam, and 1 subassembly of wind power converter in the cabinet body 2 can not contact with water, and the air circumstance that filters dry layer 23 can effectively ensure 1 subassembly of wind power converter is clean and dry.

The water inlet pipe 11 is placed on the hollowed-out plate 22. Namely, the air flow can be promoted more quickly under the action of the heat dissipation device 18, and the damage to the wind power converter 1 assembly caused by the rupture of the water pipe can be prevented.

And a sealing ring is arranged at the joint of the water inlet pipe 11 and the water outlet pipe 12 with the cooling tank 3. The 24 o-ring prevents the coolant 8 from entering the air duct.

The cold end of refrigerator 9 is located in cooling tank 3, and the hot end of refrigerator 9 is located outside cooling tank 3.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A wind power converter cooling device is characterized by comprising a cabinet body (2) internally provided with a wind power converter (1), a cooling box (3), a cooling mechanism, a temperature sensor (4) and a controller, the cabinet body (2) is provided with an air inlet (5) and an air outlet (6), a supporting plate (7) is horizontally arranged on the outer side wall of the cabinet body (2), the cooling box (3) is placed above the cabinet body (2), the cooling box (3) is filled with cooling liquid (8), the side wall of the cooling box (3) is embedded with a refrigerator (9), the cooling mechanism is used for connecting the cooling box (3) and the cabinet body (2), the cooling mechanism comprises a first cooling unit and a second cooling unit, the controller is respectively connected with the second cooling unit and a temperature sensor (4), and the temperature sensor (4) is arranged in the cabinet body (2);

first cooling unit adopts the air-cooled mode cooling the cabinet body (2), second cooling unit includes water pump (10), inlet tube (11) and outlet pipe (12), water pump (10) are connected respectively controller, inlet tube (11) and outlet pipe (12), water pump (10) are arranged in on backup pad (7), the one end of inlet tube (11) is connected cooler bin (3) are worn to locate in the cabinet body (2), the other end of inlet tube (11) is connected water pump (10), the one end of outlet pipe (12) is connected cooler bin (3), the other end of outlet pipe (12) is connected water pump (10).

2. The wind power converter cooling device according to claim 1, wherein the first cooling unit comprises a wind guide pipe (13), an air inlet pipe (14) and an air outlet pipe (15), the wind guide pipe (13) is arranged in the cooling box (3), the top of the wind guide pipe (13) is fixedly communicated with the air inlet pipe (14), the bottom of the wind guide pipe (13) is fixedly communicated with the air outlet pipe (15), one end, far away from the wind guide pipe (13), of the air outlet pipe (15) is communicated with the air inlet (5), and one end, far away from the wind guide pipe (13), of the air inlet pipe (14) is arranged outside the cooling box (3).

3. The wind power converter cooling arrangement according to claim 2, characterized in that the cabinet (2) comprises a first cabinet (201), a second cabinet (202), a third cabinet (203) and a fourth cabinet (204) which are identical in structure, the side walls of the first cabinet body (201) and the second cabinet body (202) close to the bottom are fixedly communicated, the second cabinet body (202) is fixedly communicated with the side wall of the third cabinet body (203) close to the top, the third cabinet body (203) and the fourth cabinet body (204) are fixedly communicated with each other near the side wall of the bottom, the air inlet (5) is arranged on the side wall of the top of the first cabinet body (201), the air outlet (6) is arranged on the side wall of the top of the fourth cabinet body (204), the temperature sensor (4) is arranged in the fourth cabinet body (204), and the supporting plate (7) is arranged on the outer side wall of the fourth cabinet body (204).

4. The wind power converter cooling device according to claim 3, further comprising a heat dissipation mechanism, wherein the heat dissipation mechanism is disposed below the air outlet (6), the heat dissipation mechanism comprises a driving motor (16), a rotating rod (17) connected with the driving motor (16), and a plurality of heat dissipation devices (18) sleeved on the rotating rod (17), the driving motor (16) is disposed on the supporting plate (7), and the rotating rod (17) sequentially penetrates through the fourth cabinet body (204), the third cabinet body (203), the second cabinet body (202) and the first cabinet body (201), and is rotatably connected with the inner wall of the first cabinet body (201) through a first bearing.

5. The wind power converter cooling device according to claim 4, wherein the heat sink (18) comprises a first bevel gear (1801) and a second bevel gear (1802), the first bevel gear (1801) is sleeved on the rotating rods (17) of the first cabinet (201) and the third cabinet (203), the second bevel gear (1802) is sleeved on the rotating rods (17) of the second cabinet (202) and the fourth cabinet (204), the first bevel gear (1801) is engaged with the third bevel gear (1803), the second bevel gear (1802) is engaged with the fourth bevel gear (1804), the third bevel gear (1803) and the fourth bevel gear (1804) are further rotatably connected below the rotating shafts (19), and fan blades (20) are connected to the other end of the rotating shaft (19).

6. The wind power converter cooling device according to claim 5, wherein the top plates of the first cabinet body (201), the second cabinet body (202), the third cabinet body (203) and the fourth cabinet body (204) are further fixedly provided with L-shaped plates (21) for fixing a heat dissipation device (18), the rotating rod (17) penetrates through the L-shaped plates (21), and the horizontal part of the L-shaped plates (21) is connected with the rotating shaft (19) through a second bearing.

7. The wind power converter cooling device according to claim 6, wherein a hollowed-out plate (22) is further horizontally laid in the cabinet body (2), the hollowed-out plate (22) is placed below the fan blades (20), and a filtering and drying layer (23) is further arranged inside the hollowed-out plate (22).

8. Wind power converter (1) cooling arrangement according to claim 7, characterized in that the inlet pipe (11) is placed on the hollowed-out plate (22).

9. The cooling device for the wind power converter (1) according to claim 1, wherein a sealing ring (24) is arranged at the joint of the water inlet pipe (11) and the water outlet pipe (12) and the cooling box (3).

10. Wind power converter cooling arrangement according to claim 1, characterized in that the cold end of the refrigerator (9) is located inside the cooling box (3) and the hot end of the refrigerator (9) is located outside the cooling box (3).

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