Cooling and heat dissipation device of wind driven generator

Abstract

The utility model discloses a wind driven generator cooling and radiating device which comprises a cabin, a generator, a gear box, a radiating component, a main shaft, a fairing, blades and a tower, the generator is fixedly mounted in the cabin, the gear box is fixedly mounted in the cabin, the radiating component is mounted on the cabin, and the main shaft and the fairing are fixedly mounted in the cabin. One end of the main shaft is fixedly installed at the input end of the gearbox, the fairing is fixedly installed at the other end of the main shaft, the blades are rotatably installed on the fairing, and the top of the tower is fixedly installed at the bottom of the cabin. Heat in the cabin is absorbed through the liquid heat dissipation assembly, liquid ammonia in the liquid storage box and the liquid uniformizing box absorbs heat in the cabin, the liquid ammonia is converted into gaseous ammonia, and the gaseous ammonia enters the heat dissipation holes of the blades through the gaseous curved box, the gaseous conveying cylinder and the gaseous conveying pipe. And the loss of the heat of the gaseous ammonia in the heat dissipation holes is accelerated through the rotation of the blades, so that a better heat dissipation effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine generators, in particular to a cooling and heat dissipation device for wind turbine generators. Background Art

[0002] A wind turbine is a device that converts wind energy into electrical energy. It is mainly composed of impellers, generators, nacelles, towers, foundations and control systems. The working principle is that the wind drives the impeller to rotate, and the impeller drives the generator to rotate through the transmission system, thereby generating electrical energy. Wind power generation is a clean and renewable energy source, which is of great significance to reducing greenhouse gas emissions and dependence on fossil fuels.

[0003] In the process of converting wind energy into electrical energy, wind turbines will generate a certain amount of heat energy. Mechanical friction, electrical loss, hysteresis loss and eddy current loss inside the generator will all generate heat. Overheating will reduce power generation efficiency and may also cause equipment damage and even cause safety accidents, resulting in economic losses.

[0004] Therefore, how to provide a wind turbine cooling and heat dissipation device is a problem that technical personnel in this field need to solve urgently. Utility Model Content

[0005] One purpose of the utility model is to provide a wind turbine cooling and heat dissipation device. The utility model absorbs heat from the temperature in the cabin through a liquid heat dissipation component. The liquid ammonia in the liquid storage box and the liquid equalization box absorbs the heat in the cabin, and the liquid ammonia is converted into gaseous ammonia. The gaseous ammonia enters the heat dissipation holes of the blades through a gaseous curved box, a gaseous conveying cylinder and a gaseous conveying pipe. The rotation of the blades then accelerates the loss of heat of the gaseous ammonia in the heat dissipation holes, thereby achieving a better heat dissipation effect.

[0006] A wind turbine cooling and heat dissipation device according to an embodiment of the utility model includes a nacelle, a generator, a gearbox, a heat dissipation component, a main shaft, a fairing, blades and a tower, wherein the generator is fixedly installed in the nacelle, the gearbox is fixedly installed in the nacelle, the heat dissipation component is installed on the nacelle, one end of the main shaft is fixedly installed on the input end of the gearbox, the fairing is fixedly installed on the other end of the main shaft, the blades are rotatably installed on the fairing, and the top of the tower is fixedly installed on the bottom of the nacelle.

[0007] The heat dissipation component includes a liquid heat dissipation component, a sealing component and a wind heat dissipation component, wherein the liquid heat dissipation component is fixedly mounted on one end of the cabin close to the fairing, the wind heat dissipation component is fixedly mounted on the bottom of the cabin and is provided with a first air vent, the end of the cabin close to the fairing is provided with a second air vent, the top of the gear box is provided with the bottom of a fixing rod, and the top of the fixing rod is fixedly mounted on the inner wall of the cabin.

[0008] Furthermore, the liquid heat dissipation assembly includes a liquid storage box, a liquid equalizing box, a gas curved box and a gas conveying tube, wherein the liquid storage box is fixedly installed in the cabin, both ends of the liquid equalizing box are fixedly installed on the liquid storage box, the bottom of the gas curved box is fixedly installed on the bottom of the liquid storage box, and the gas conveying tube is fixedly installed on the top of the gas curved box.

[0009] Furthermore, the liquid heat dissipation component also includes a gaseous delivery pipe and a liquid return cylinder, one end of the gaseous delivery pipe is fixedly installed on the sealing assembly, the other end of the gaseous delivery pipe is fixedly installed on the blade, one end of the liquid return cylinder is fixedly installed on the liquid equalizing box, and the other end of the liquid return cylinder is fixedly installed in a manner extending through the cabin into the sealing assembly.

[0010] Furthermore, the sealing assembly includes a sealing outer plate, a sealing inner plate, a sealing ring, a sealing protrusion, a sealing groove, balls and sealant, wherein the sealing outer plate is fixedly mounted on the cabin, the sealing inner plate is fixedly mounted on the cabin, the sealing ring is slidably mounted between the sealing outer plate and the sealing inner plate, the sealing protrusion is fixedly mounted on the sealing outer plate, the sealing protrusion is fixedly mounted on the sealing inner plate, the sealing groove is opened on both sides of the sealing ring, the balls are rollingly mounted on the sealing ring, and the sealant is fixedly mounted on the inward side of the sealing ring.

[0011] Furthermore, one end of the gas delivery pipe close to the cabin is fixedly mounted on the sealing ring.

[0012] Furthermore, the wind heat dissipation assembly includes a mounting column, a mounting box and a cooling fan, wherein one end of the mounting column is fixedly mounted on the inner wall of the cabin, the other end of the mounting column is fixedly mounted on the mounting box, and the cooling fan is fixedly mounted in the mounting box.

[0013] Furthermore, a wheel hub is provided on the outer surface of the fairing, and the wheel hub is fixedly mounted on the blade at one end away from the fairing.

[0014] Furthermore, heat dissipation holes are provided inside the blades.

[0015] The beneficial effects of the utility model are:

[0016] The utility model absorbs heat from the temperature in the cabin through a liquid heat dissipation component. The liquid ammonia in the liquid storage box and the liquid equalization box absorbs the heat in the cabin, and the liquid ammonia is converted into gaseous ammonia. The gaseous ammonia enters the heat dissipation holes of the blades through a gas curved box, a gas delivery cylinder and a gas delivery pipe. The rotation of the blades then accelerates the loss of heat of the gaseous ammonia in the heat dissipation holes, thereby achieving a better heat dissipation effect.

[0017] The utility model uses a wind heat dissipation component to assist the liquid heat dissipation component in dissipating heat. The wind heat dissipation component rotates to drive the air inside the cabin. The outside air enters the cabin from the first air vent. The flowing air passes through the generator, the gear box and the heat dissipation component to take away the heat of the generator, the gear box and the heat dissipation component. The air that drives the heat flows out from the second air vent to take away the heat in the cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure from a first perspective of a wind turbine cooling and heat dissipation device proposed by the utility model;

[0020] Figure 2 A second-view overall structural diagram of a wind turbine cooling and heat dissipation device proposed by the utility model;

[0021] Figure 3 A cross-sectional view of a cabin of a wind turbine cooling and heat dissipation device proposed by the utility model;

[0022] Figure 4 A wind turbine cooling and heat dissipation device proposed by the utility model Figure 3 A magnified image of point A;

[0023] Figure 5 A wind turbine cooling and heat dissipation device proposed by the utility model Figure 3 The enlarged view of point B;

[0024] Figure 6 This is a schematic diagram of the structure of a cooling fan of a wind turbine cooling and heat dissipation device proposed by the utility model;

[0025] Figure 7 This is a cross-sectional view of a blade of a wind turbine cooling and heat dissipation device proposed by the utility model.

[0026] In the figure: 1, cabin; 1.1, first vent hole; 1.2, second vent hole; 2, generator; 3, gear box; 3.1, fixing rod; 4, heat dissipation component; 4.1, liquid heat dissipation assembly; 4.1.1, liquid storage box; 4.1.2, liquid equalization box; 4.1.3, gas bending box; 4.1.4, gas delivery cylinder; 4.1.5, gas delivery pipe; 4.1.6, liquid return cylinder; 4.2, sealing assembly; 4.2.1 , sealing outer plate; 4.2.2, sealing inner plate; 4.2.3, sealing ring; 4.2.4, sealing protrusion; 4.2.5, sealing groove; 4.2.6, ball bearing; 4.2.7, sealant; 4.3, wind heat dissipation component; 4.3.1, mounting column; 4.3.2, mounting box; 4.3.3, cooling fan; 5, main shaft; 6, fairing; 7, blades; 7.1, heat dissipation holes; 8, tower; 9, wheel. DETAILED DESCRIPTION

[0027] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0028] Please refer to Figures 1 to 6 The utility model provides a cooling and heat dissipation device for a wind turbine generator, comprising a nacelle 1, a generator 2, a gear box 3, a heat dissipation component 4, a main shaft 5, a fairing 6, blades 7 and a tower 8, wherein the generator 2 is fixedly mounted in the nacelle 1, the gear box 3 is fixedly mounted in the nacelle 1, the rotation speed of the blade 7 is transmitted to the gear box 3, and then transmitted to the generator 2 for power generation through the acceleration of the gear box 3, the heat dissipation component 4 is mounted on the nacelle 1, one end of the main shaft 5 is fixedly mounted on the input end of the gear box 3, the fairing 6 is fixedly mounted on the other end of the main shaft 5, the blade 7 is rotatably mounted on the fairing 6, there are three blades 7, the top of the tower 8 is fixedly mounted on the bottom of the nacelle 1, and the tower 8 supports the nacelle 1 to be located at a high place.

[0029] Specifically, the heat dissipation component 4 includes a liquid heat dissipation component 4.1, a sealing component 4.2 and a wind heat dissipation component 4.3, wherein the liquid heat dissipation component 4.1 is fixedly installed in the cabin 1), the sealing component 4.2 is fixedly installed on one end of the cabin 1 close to the fairing 6, and the wind heat dissipation component 4.3 is fixedly installed in the cabin 1).

[0030] A first air vent 1.1 is provided at the bottom of the cabin 1, and the first air vent 1.1 is used to circulate the air inside the cabin 1. A second air vent 1.2 is provided at one end of the cabin 1 close to the fairing 6, and the second air vent 1.2 is used to circulate the air inside the cabin 1. The first air vent 1.1 and the second air vent 1.2 facilitate the air flow inside the cabin 1. The top of the gear box 3 is provided with the bottom of the fixing rod 3.1, and the top of the fixing rod 3.1 is fixedly installed on the inner wall of the cabin 1.

[0031] Furthermore, the air inside the cabin 1 is driven by the rotation of the wind heat dissipation component 4.3, and the outside air enters the cabin 1 from the first air vent 1.1. The flowing air passes through the generator 2, the gear box 3 and the heat dissipation component 4 and takes away the heat of the generator 2, the gear box 3 and the heat dissipation component 4, and the air carrying the heat flows out from the second air vent 1.2 and takes away the heat in the cabin 1.

[0032] More specifically, the liquid heat dissipation component 4.1 includes a liquid storage box 4.1.1, a liquid equalizing box 4.1.2, a gaseous curved box 4.1.3 and a gaseous conveying tube 4.1.4, wherein the liquid storage box 4.1.1 is fixedly installed in the cabin 1, both ends of the liquid equalizing box 4.1.2 are fixedly installed on the liquid storage box 4.1.1, the bottom of the gaseous curved box 4.1.3 is fixedly installed on the bottom of the liquid storage box 4.1.1, and the gaseous curved box 4.1.4 is fixedly installed on the top of the gaseous curved box 4.1.3. There is liquid ammonia in the liquid storage box 4.1.1 and the liquid equalizing box 4.1.2, and the gaseous curved box 4.1.3 and the gaseous conveying tube 4.1.4 are used for conveying gaseous ammonia.

[0033] The liquid heat dissipation component 4.1 also includes a gas delivery pipe 4.1.5 and a liquid return cylinder 4.1.6. One end of the gas delivery pipe 4.1.5 is fixedly mounted on the sealing component 4.2, and the other end of the gas delivery pipe 4.1.5 is fixedly mounted on the blade 7. The gas delivery pipe 4.1.5 is a flexible pipe. The gas delivery pipe 4.1.5 is used for the delivery of gaseous ammonia. One end of the liquid return cylinder 4.1.6 is fixedly mounted on the liquid equalizing box 4.1.2, and the other end of the liquid return cylinder 4.1.6 is fixedly mounted on the liquid storage box 4.1.2 extending through the cabin 1 to the sealing component 4.2. The liquid return cylinder 4.1.6 is used for condensing the gaseous ammonia. The condensed liquid ammonia flows from the liquid return cylinder 4.1.6 to the liquid storage box 4.1.1 and the liquid equalizing box 4.1.2.

[0034] The sealing assembly 4.2 comprises a sealing outer plate 4.2.1, a sealing inner plate 4.2.2, a sealing ring 4.2.3, a sealing protrusion 4.2.4, a sealing groove 4.2.5, a ball bearing 4.2.6 and a sealant 4.2.7, wherein the sealing outer plate 4.2.1 is fixedly mounted on the engine room 1, the sealing inner plate 4.2.2 is fixedly mounted on the engine room 1, the sealing outer plate 4.2.1 and the sealing inner plate 4.2.2 form a ring, the sealing ring 4.2.3 is slidably mounted between the sealing outer plate 4.2.1 and the sealing inner plate 4.2.2, and the sealing ring 4.2.3 seals the openings of the sealing outer plate 4.2.1 and the sealing inner plate 4.2.2, the sealing protrusion 4.2.4 is fixedly mounted on the sealing outer plate 4.2.1, the sealing protrusion 4.2.4 is fixedly mounted on the sealing inner plate 4.2.2, and the sealing groove 4.2.5 is provided in the sealing outer plate 4.2.1. On both sides of the sealing ring 4.2.3, the sealing protrusion 4.2.4 and the sealing groove 4.2.5 are used to seal the gap between the sealing outer plate 4.2.1, the sealing inner plate 4.2.2 and the sealing ring 4.2.3. The ball 4.2.6 is rollingly installed on the sealing ring 4.2.3. The ball 4.2.6 is convenient for rolling between the sealing outer plate 4.2.1, the sealing inner plate 4.2.2 and the sealing ring 4.2.3. The sealant 4.2.7 is fixedly installed on the inner side of the sealing ring 4.2.3. The sealant 4.2.7 is used to seal the gap between the sealing outer plate 4.2.1, the sealing inner plate 4.2.2 and the sealing ring 4.2.3. The end of the gas delivery pipe 4.1.5 close to the cabin 1 is fixedly installed on the sealing ring 4.2.3. The inner part of the blade 7 is provided with a heat dissipation hole 7.1. The gaseous ammonia enters the heat dissipation hole 7.1 and the heat is dissipated through the blade 7.

[0035] The wind heat dissipation component 4.3 includes a mounting column 4.3.1, a mounting box 4.3.2 and a cooling fan 4.3.3, wherein one end of the mounting column 4.3.1 is fixedly mounted on the inner wall of the cabin 1, and the other end of the mounting column 4.3.1 is fixedly mounted on the mounting box 4.3.2. The cooling fan 4.3.3 is fixedly mounted in the mounting box 4.3.2. When the cooling fan 4.3.3 is started, it is convenient to flow the air in the cabin 1.

[0036] Furthermore, the temperature inside the cabin 1 is relatively high, which makes the generator 2, the gearbox 3 and the heat dissipation component 4 easily damaged. The liquid ammonia in the liquid storage box 4.1.1 and the liquid equalization box 4.1.2 absorbs the heat in the cabin 1. After the liquid ammonia absorbs the heat, the liquid ammonia is converted into gaseous ammonia, which is transported by the gaseous curved box 4.1.3 and the gaseous conveying cylinder 4.1.4 and enters the sealed outer plate 4.2.1 and the sealed inner plate 4.2.2. From the gaseous curved box 4.1.3 and the gaseous conveying cylinder 4.1.4, the gaseous ammonia enters the gaseous conveying cylinder 4.1.4. In the tube 4.1.5, the heat of the gaseous ammonia in the heat dissipation hole 7.1 is taken away by the rotation of the blade 7 when entering the heat dissipation hole 7.1 from the gas transport pipe 4.1.5. The heat dissipated by the gaseous ammonia is condensed into liquid ammonia. The liquid ammonia enters the gas transport pipe 4.1.5 from the heat dissipation hole 7.1. The liquid ammonia enters between the sealed outer plate 4.2.1 and the sealed inner plate 4.2.2, and then enters the liquid storage box 4.1.1 and the liquid equalizing box 4.1.2 from the liquid return cylinder 4.1.6, thereby cooling the temperature inside the cabin 1 again.

[0037] More specifically, a wheel hub 9 is provided on the outer surface of the fairing 6 , and an end of the wheel hub 9 away from the fairing 6 is fixedly mounted on the blade 7 , and the wheel hub 9 connects the fairing 6 and the blade 7 .

[0038] Furthermore, the wheel 9 can control the swing of the blade 7 and adjust the swing angle of the blade 7.

[0039] The above are only preferred specific implementation methods of the utility model, but the protection scope of the utility model is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the utility model, who makes equivalent replacements or changes based on the technical scheme and utility model concept of the utility model, should be covered by the protection scope of the utility model.

Claims

1. A wind turbine cooling and heat dissipation device, characterized in that: The invention comprises a nacelle (1), a generator (2), a gearbox (3), a heat dissipation component (4), a main shaft (5), a fairing (6), blades (7) and a tower (8), wherein the generator (2) is fixedly mounted in the nacelle (1), the gearbox (3) is fixedly mounted in the nacelle (1), the heat dissipation component (4) is mounted on the nacelle (1), one end of the main shaft (5) is fixedly mounted on the input end of the gearbox (3), the fairing (6) is fixedly mounted on the other end of the main shaft (5), the blades (7) are rotatably mounted on the fairing (6), and the top of the tower (8) is fixedly mounted on the bottom of the nacelle (1); The heat dissipation component (4) comprises a liquid heat dissipation component (4.1), a sealing component (4.2) and a wind heat dissipation component (4.3), wherein the liquid heat dissipation component (4.1) is fixedly installed in the cabin (1), the sealing component (4.2) is fixedly installed on one end of the cabin (1) close to the fairing (6), and the wind heat dissipation component (4.3) is fixedly installed in the cabin (1).

2. A wind turbine cooling and heat dissipation device according to claim 1, characterized in that: The bottom of the cabin (1) is provided with a first air vent (1.1), an end of the cabin (1) close to the fairing (6) is provided with a second air vent (1.2), the top of the gear box (3) is provided with the bottom of a fixing rod (3.1), and the top of the fixing rod (3.1) is fixedly mounted on the inner wall of the cabin (1).

3. A wind turbine cooling and heat dissipation device according to claim 1, characterized in that: The liquid heat dissipation component (4.1) comprises a liquid storage box (4.1.1), a liquid equalizing box (4.1.2), a gaseous curved box (4.1.3) and a gaseous conveying tube (4.1.4), wherein the liquid storage box (4.1.1) is fixedly installed in the cabin (1), both ends of the liquid equalizing box (4.1.2) are fixedly installed on the liquid storage box (4.1.1), the bottom of the gaseous curved box (4.1.3) is fixedly installed on the bottom of the liquid storage box (4.1.1), and the gaseous conveying tube (4.1.4) is fixedly installed on the top of the gaseous curved box (4.1.3).

4. A wind turbine cooling and heat dissipation device according to claim 3, characterized in that: The liquid heat dissipation component (4.1) also includes a gas delivery pipe (4.1.5) and a liquid return cylinder (4.1.6), one end of the gas delivery pipe (4.1.5) is fixedly mounted on the sealing component (4.2), the other end of the gas delivery pipe (4.1.5) is fixedly mounted on the blade (7), one end of the liquid return cylinder (4.1.6) is fixedly mounted on the liquid equalizing box (4.1.2), and the other end of the liquid return cylinder (4.1.6) is fixedly mounted on a liquid equalizing box (4.1.2), and the other end of the liquid return cylinder (4.1.6) is fixedly mounted on a portion extending through the cabin (1) to the sealing component (4.2).

5. The wind turbine generator cooling and heat dissipation device according to claim 1, characterized in that: The sealing assembly (4.2) comprises a sealing outer plate (4.2.1), a sealing inner plate (4.2.2), a sealing ring (4.2.3), a sealing protrusion (4.2.4), a sealing groove (4.2.5), a ball bearing (4.2.6) and a sealing adhesive (4.2.7), wherein the sealing outer plate (4.2.1) is fixedly mounted on the cabin (1), the sealing inner plate (4.2.2) is fixedly mounted on the cabin (1), and the sealing ring (4.2.3) is slidably mounted on the sealing outer plate (4.2.1). 2.1) and the sealing inner panel (4.2.2), the sealing protrusion (4.2.4) is fixedly mounted on the sealing outer panel (4.2.1), the sealing protrusion (4.2.4) is fixedly mounted on the sealing inner panel (4.2.2), the sealing groove (4.2.5) is opened on both sides of the sealing ring (4.2.3), the ball (4.2.6) is rollingly mounted on the sealing ring (4.2.3), and the sealing glue (4.2.7) is fixedly mounted on the inner side of the sealing ring (4.2.3).

6. A wind turbine cooling and heat dissipation device according to claim 4, characterized in that: One end of the gas delivery pipe (4.1.5) close to the cabin (1) is fixedly mounted on the sealing ring (4.2.3).

7. A wind turbine cooling and heat dissipation device according to claim 1, characterized in that: The wind heat dissipation component (4.3) comprises a mounting column (4.3.1), a mounting box (4.3.2) and a heat dissipation fan (4.3.3), wherein one end of the mounting column (4.3.1) is fixedly mounted on the inner wall of the cabin (1), the other end of the mounting column (4.3.1) is fixedly mounted on the mounting box (4.3.2), and the heat dissipation fan (4.3.3) is fixedly mounted in the mounting box (4.3.2).

8. The wind turbine generator cooling and heat dissipation device according to claim 1, characterized in that: The outer surface of the fairing (6) is provided with a wheel hub (9), and the wheel hub (9) is fixedly mounted on the blade (7) at one end away from the fairing (6).

9. A wind turbine cooling and heat dissipation device according to claim 1, characterized in that: The blade (7) is provided with a heat dissipation hole (7.1) inside.

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