Wind power generation equipment capable of giving alarm at high temperature

Abstract

The invention discloses wind power generation equipment capable of giving an alarm at high temperature, which belongs to the technical field of wind power generation and comprises a fan blade, a rotating shaft, a step-up gear box, a generator, a first conveying pipe, a cooling coil, a rotating ring, a thermosensitive extrusion block, a placement ring cavity and the like. Two arranged thermosensitive extrusion blocks rotate to alternately and circularly extrude a conveying hose to generate suction force, so that water in the conveying hose, a second conveying pipe, a cooling coil, a first conveying pipe and a flow guide spiral groove circularly flows to absorb heat in the cabin shell, and continuous heat dissipation in the cabin shell is achieved; and when the temperature in the cabin shell is higher, the size of the rotating ring is increased, so that the speed of water flowing circularly in the conveying hose is increased, the water-cooling heat dissipation effect of the cabin shell is improved, and the problem that heat in a main engine of a wind generating set is difficult to dissipate in a high-temperature environment under most conditions is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power generation, and in particular relates to a wind power generation device capable of providing a high temperature alarm. Background Art

[0002] Wind power generation converts the kinetic energy of wind into mechanical kinetic energy, and then converts mechanical energy into electrical kinetic energy. The principle of wind power generation is to use wind power to drive the windmill blades to rotate, and then increase the speed of rotation through the speed increaser to drive the generator to generate electricity. With the shortage of energy and the increase in awareness of ecological protection, wind power generation plays an extremely important role as a clean energy. The development of wind power generation equipment has brought great convenience to the power supply of power equipment.

[0003] Application No. CN202110588016.9 discloses a liquid medium cooling device and a control method thereof, including a cooling cavity, a temperature sensor is tightly fitted on one side wall of the cooling cavity, a plurality of semiconductor refrigeration plates and a plurality of temperature control switches are fixedly arranged on the other opposite side wall of the cooling cavity, and a heat sink is tightly fitted on the plurality of semiconductor refrigeration plates, and a connecting groove is arranged on the heat sink. The beneficial effect of the present invention is to cool the coolant in the cooling cavity by the heat transfer refrigeration effect of the semiconductor refrigeration plate, which makes up for the insufficient cooling power of the system cooling device, and monitors the equipment radially through multiple sets of sensors to prevent the equipment from being damaged due to long-term overload. It also has a simple structure, convenient use, good heat dissipation effect, low noise, no vibration, and environmental protection; at the same time, it is easy to install and maintain, and can effectively protect the wind turbine generator set to prevent the wind turbine generator set from entering the power-limited operation or shutdown state due to high temperature. However, in some cases, this device may not effectively reduce the internal heat of the host. Summary of the invention

[0004] The purpose of the present invention is to address the problem that the heat inside the main engine of the existing wind turbine generator set may not be properly dissipated in a high temperature environment, thereby causing poor operation of the main engine. A wind turbine generator set with a high temperature alarm is proposed. The two heat-sensitive extrusion blocks are rotated to alternately circulate and squeeze the delivery hose to generate suction, thereby causing the water in the delivery hose, the second delivery pipe, the cooling coil, the first delivery pipe, and the guide spiral groove to circulate and absorb the heat in the cabin shell to achieve continuous heat dissipation inside the cabin shell. The swivel is made of a material that expands with heat and contracts with cold. When the temperature inside the cabin shell is higher, the volume of the swivel becomes larger, thereby increasing the flow rate of the water circulating in the delivery hose, thereby improving the water-cooling heat dissipation effect of the cabin shell, solving the problem that the heat inside the main engine of the wind turbine generator set is not well dissipated in a high temperature environment in most cases.

[0005] To solve the above technical problems, the present invention provides a wind power generation equipment with high temperature alarm, comprising: a tower fixedly installed on the ground, the top of the tower is fixedly connected to a nacelle shell, a rotating shaft passes through the side wall of the nacelle shell and is rotatably connected, one end of the rotating shaft is provided with fan blades, the other end of the rotating shaft is connected to a speed increasing gearbox, the speed increasing gearbox is installed in the nacelle shell, a generator is installed in the nacelle shell, the input shaft of the generator is connected to the output end of the speed increasing gearbox, the side wall of the nacelle shell is provided with an active air cooling device, and the side wall of the nacelle shell is provided with a liquid cooling device.

[0006] Preferably, the active air cooling device includes a motor, the motor is fixedly connected to a side wall at one end of the cabin shell, the output shaft of the motor is fixedly connected to a fan blade, the side wall of the cabin shell is fixedly connected to an air guide cover, the motor and the fan blades are located in the air guide cover, and a plurality of air inlet holes and a plurality of air outlet holes are respectively opened on the side walls at both ends of the cabin shell.

[0007] Preferably, the air guide cover is arranged in a cone shape.

[0008] Preferably, the liquid cooling device includes a cooling coil, which is located below the ground, and both ends of the cooling coil are fixedly connected with a first delivery pipe and a second delivery pipe, respectively, and the first delivery pipe and the second delivery pipe both pass through the inner wall of the tower, and a guide spiral groove is provided in the side wall of the nacelle shell, and the guide spiral groove is arranged in a spiral tube shape, and the side wall of the rotating shaft is connected to a delivery hose through a thermal pumping device, one end of the delivery hose is connected to the upper end of the second delivery pipe, and the other end of the delivery hose is connected to one end of the guide spiral groove, and the other end of the guide spiral groove is connected to the upper end of the first delivery pipe.

[0009] Preferably, the thermal variable pumping device includes a fixed ring, a placement ring cavity is opened inside the fixed ring, the delivery hose is located in the placement ring cavity, both ends of the delivery hose pass through the fixed ring and the side wall of the cabin shell, an annular groove is opened on the inner ring side wall of the fixed ring, a swivel is fixedly connected to the outer ring side wall of the rotating shaft, and two thermosensitive extrusion blocks are fixedly connected to the outer side wall of the swivel, and the two thermosensitive extrusion blocks extend into the annular groove and abut against the side wall of the delivery hose.

[0010] Preferably, the thermosensitive extrusion block is made of aluminum material which has obvious thermal expansion and contraction effects.

[0011] Preferably, the heat-sensitive extrusion block is arranged in a semicircular plate shape.

[0012] Preferably, the cooling coil is arranged in a coil shape and is made of copper.

[0013] Preferably, a temperature sensor is provided inside the cabin shell, a controller is provided on the outer side wall of the cabin shell, and the temperature sensor and the motor are electrically connected to the controller.

[0014] Preferably, it further comprises a wireless transmission module, and the controller is connected to an external monitoring platform by radio via the wireless transmission module.

[0015] Beneficial effects of the present invention: This solution provides a liquid cooling device that automatically adjusts the flow rate according to temperature changes and an active air cooling device, so that the fan compartment can be cooled and cooled in time. It also has a continuous high temperature alarm function to facilitate timely maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings. The drawings are only for the purpose of illustrating preferred embodiments and are not to be considered as limiting the present invention. Also, the same reference symbols are used throughout the drawings to represent the same parts.

[0017] Figure 1 It is a front cross-sectional structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the internal cross-sectional structure of the nacelle shell of the present invention; Figure 3 for Figure 2 A is a schematic diagram of the partially enlarged structure of the middle part; Figure 4 It is a schematic diagram of the fixing ring structure of the present invention; Figure 5 It is a schematic diagram of the transmission buckle of the present invention; Figure 6 It is a schematic diagram of the auxiliary rotating disk of the present invention.

[0018] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Fan blades; 2. Rotating shaft; 3. Nacelle shell; 4. Speed ​​increasing gearbox; 5. Generator; 6. Motor; 7. Fan blades; 8. Wind guide cover; 9. First conveying pipe; 10. Tower; 11. Second conveying pipe; 12. Cooling coil; 13. Rotating ring; 14. Thermosensitive extrusion block; 15. Annular groove; 16. Fixed ring; 17. Conveying hose; 18. Placement ring cavity; 19. Air inlet; 20. Guide spiral groove; 21. Temperature sensor; 22. Controller; 23. Air outlet. DETAILED DESCRIPTION

[0019] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific implementation method described herein is only an optimal embodiment of the present invention, which is only used to explain the present invention and does not limit the scope of protection of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] Embodiment 1: A wind power generation equipment with high temperature alarm comprises a tower 10 fixedly mounted on the ground, the top of the tower 10 is fixedly connected to a nacelle shell 3, a rotating shaft 2 is rotatably connected to the side wall of the nacelle shell 3, one end of the rotating shaft 2 is provided with a fan blade 1, the other end of the rotating shaft 2 is connected to a speed increasing gearbox 4, the speed increasing gearbox 4 is installed in the nacelle shell 3, a generator 5 is installed in the nacelle shell 3, the input shaft of the generator 5 is connected to the output end of the speed increasing gearbox 4, the side wall of the nacelle shell 3 is provided with an active air cooling device, and the side wall of the nacelle shell 3 is provided with a liquid cooling device.

[0021] Specifically, the active air cooling device includes a motor 6, which is fixedly connected to a side wall of one end of the cabin shell 3, and the output shaft of the motor 6 is fixedly connected to a fan blade 7. The side wall of the cabin shell 3 is fixedly connected to an air guide cover 8, and the motor 6 and the fan blade 7 are located in the air guide cover 8. A plurality of air inlet holes 19 and a plurality of air outlet holes 23 are respectively provided on the side walls at both ends of the cabin shell 3.

[0022] Specifically, the air guide cover 8 is arranged in a cone shape.

[0023] In this embodiment, the tower 10, the nacelle shell 3, the rotating shaft 2, the fan blades 1, the speed increasing gear box 4 and other devices are the main devices of the wind turbine, realizing the basic working principle of the wind turbine.

[0024] Embodiment 2: A wind power generation equipment with high temperature alarm comprises a tower 10 fixedly mounted on the ground, the top of the tower 10 is fixedly connected to a nacelle shell 3, a rotating shaft 2 is rotatably connected to the side wall of the nacelle shell 3, one end of the rotating shaft 2 is provided with a fan blade 1, the other end of the rotating shaft 2 is connected to a speed increasing gearbox 4, the speed increasing gearbox 4 is installed in the nacelle shell 3, a generator 5 is installed in the nacelle shell 3, the input shaft of the generator 5 is connected to the output end of the speed increasing gearbox 4, the side wall of the nacelle shell 3 is provided with an active air cooling device, and the side wall of the nacelle shell 3 is provided with a liquid cooling device.

[0025] Specifically, the liquid cooling device includes a cooling coil 12, which is located below the ground. The two ends of the cooling coil 12 are respectively fixedly connected with a first delivery pipe 9 and a second delivery pipe 11, and the first delivery pipe 9 and the second delivery pipe 11 both penetrate the inner wall of the tower 10. A guide spiral groove 20 is provided in the side wall of the nacelle shell 3, and the guide spiral groove 20 is arranged in a spiral tube shape. The side wall of the rotating shaft 2 is connected with a delivery hose 17 through a thermal pumping device, and one end of the delivery hose 17 is connected to the upper end of the second delivery pipe 11, and the other end of the delivery hose 17 is connected to one end of the guide spiral groove 20, and the other end of the guide spiral groove 20 is connected to the upper end of the first delivery pipe 9.

[0026] Specifically, the thermal variable pumping device includes a fixed ring 16, a placement ring cavity 18 is opened inside the fixed ring 16, the delivery hose 17 is located in the placement ring cavity 18, both ends of the delivery hose 17 pass through the fixed ring 16 and the side wall of the cabin shell 3, an annular groove 15 is opened on the inner ring side wall of the fixed ring 16, a swivel 13 is fixedly connected to the outer ring side wall of the rotating shaft 2, and two thermosensitive extrusion blocks 14 are fixedly connected to the outer side wall of the swivel 13, and the two thermosensitive extrusion blocks 14 extend into the annular groove 15 and abut against the side wall of the delivery hose 17.

[0027] Specifically, the thermosensitive extrusion block 14 is in the shape of a semicircular plate and is made of aluminum material with obvious thermal expansion and contraction effects.

[0028] In this embodiment, two thermosensitive extrusion blocks are rotated to alternately circulate and extrude the delivery hose to generate suction, thereby causing the water in the delivery hose, the second delivery pipe, the cooling coil, the first delivery pipe, and the guide spiral groove to circulate, absorbing the heat in the nacelle shell, thereby achieving continuous heat dissipation inside the nacelle shell. The swivel is made of a material that expands with heat and contracts with cold. When the temperature inside the nacelle shell is higher, the volume of the swivel becomes larger, thereby increasing the flow rate of the water circulating in the delivery hose, thereby improving the water-cooling heat dissipation effect of the nacelle shell, and solving the problem of poor heat dissipation inside the main engine of the wind turbine in most cases under high temperature conditions.

[0029] Example 3: Please refer to Figures 1 to 6 In an embodiment of the present invention, a wind power generation device capable of high temperature alarm includes a tower 10 fixedly installed on the ground, a nacelle shell 3 is fixedly connected to the top of the tower 10, a rotating shaft 2 is rotatably connected to the side wall of the nacelle shell 3, a fan blade 1 is arranged at one end of the rotating shaft 2, a speed increasing gear box 4 is connected to the other end of the rotating shaft 2, the speed increasing gear box 4 is installed in the nacelle shell 3, a generator 5 is installed in the nacelle shell 3, an input shaft of the generator 5 is connected to the output end of the speed increasing gear box 4, and an active air cooling device is arranged on the side wall of the nacelle shell 3; See also Figure 2The active air cooling device includes a motor 6, which is fixedly connected to a side wall of one end of the cabin shell 3. The output shaft of the motor 6 is fixedly connected to a fan blade 7. An air guide cover 8 is fixedly connected to the side wall of the cabin shell 3. The motor 6 and the fan blade 7 are located in the air guide cover 8. A plurality of air inlet holes 19 and a plurality of air outlet holes 23 are respectively provided on the side walls at both ends of the cabin shell 3. The air guide cover 8 is arranged in a cone shape. When the motor 6 is started, the motor 6 can drive the fan blade 7 to rotate to guide the external air flow through the air guide cover 8 and enter the interior of the cabin shell 3 through the air inlet hole 19, and finally be discharged from the air outlet hole 23, thereby improving the cooling effect inside the cabin shell 3.

[0030] Specifically, a temperature sensor 21 is provided inside the cabin shell 3, and a controller 22 is provided on the outer wall of the cabin shell 3. The temperature sensor 21 and the motor 6 are electrically connected to the controller 22, and also include a wireless transmission module. The controller 22 is radio-connected to an external monitoring platform through the wireless transmission module. When the temperature sensor 21 detects that the temperature inside the cabin shell 3 is higher than a preset threshold, the controller 22 can send a high temperature alarm to the monitoring platform through the wireless transmission module. When the cabin shell 3 continues to alarm with a high temperature, people can be sent for inspection.

[0031] See also Figures 1 to 6A liquid cooling device is provided on the side wall of the nacelle shell 3, and the liquid cooling device includes a cooling coil 12, and the cooling coil 12 is located below the ground, and the cooling coil 12 is arranged in a coil shape. The cooling coil 12 is made of copper, and the two ends of the cooling coil 12 are respectively fixedly connected with a first delivery pipe 9 and a second delivery pipe 11, and the first delivery pipe 9 and the second delivery pipe 11 both pass through the inner wall of the tower 10, and a guide spiral groove 20 is provided in the side wall of the nacelle shell 3, and the guide spiral groove 20 is arranged in a spiral tube shape. The side wall of the rotating shaft 2 is connected with a delivery hose 17 through a thermal variable pumping device, and the thermal variable pumping device includes a fixing ring 16, and a placement ring cavity 18 is opened inside the fixing ring 16, and the delivery hose 17 is located in the placement ring cavity 18, and both ends of the delivery hose 17 pass through the fixing ring 16 and the side wall of the nacelle shell 3, and an annular groove 15 is opened on the inner ring side wall of the fixing ring 16, and a swivel 13 is fixedly connected to the outer ring side wall of the rotating shaft 2, and a swivel 13 is fixedly connected to the outer wall of the swivel There are two thermosensitive extrusion blocks 14, which are made of aluminum with obvious thermal expansion and contraction effects. The thermosensitive extrusion blocks 14 are arranged in a semicircular plate shape. The two thermosensitive extrusion blocks 14 extend into the annular groove 15 and rest against the side wall of the conveying hose 17; one end of the conveying hose 17 is connected to the upper end of the second conveying pipe 11, and the other end of the conveying hose 17 is connected to one end of the guide spiral groove 20, and the other end of the guide spiral groove 20 is connected to the upper end of the first conveying pipe 9. The cooling coil 12, the second conveying pipe 11, the conveying hose 17, the guide spiral groove 20, and the first conveying pipe 9 are all filled with water. The rotating shaft 2 can drive the two thermosensitive extrusion blocks 14 to rotate through the rotating ring 13. The two thermosensitive extrusion blocks 14 rotate to alternately extrude the conveying hose 17, so that the conveying hose 17 generates suction, and then the water in the conveying hose 17, the second conveying pipe 11, the cooling coil 12, the first conveying pipe 9, and the guide spiral groove 20 circulates.

[0032] The working principle of the present invention is: When the fan blades 1 rotate, the shaft 2 can be driven to rotate. The shaft 2 can drive the generator 5 to generate electricity through the speed increasing gearbox 4. When the shaft 2 rotates, the shaft 2 can drive the two heat sensitive extrusion blocks 14 to rotate through the swivel 13. The two heat sensitive extrusion blocks 14 rotate to alternately circulate and squeeze the delivery hose 17, so that the delivery hose 17 generates suction. The delivery hose 17 can deliver the water inside it to the second delivery pipe 11, thereby making the delivery hose 17, the second delivery pipe 11, the cooling coil 12, the first delivery pipe 9, and the water in the guide spiral groove 20 circulate. When the water flows through the cooling coil 12, the first delivery pipe 9 and the guide spiral groove 20 circulate. The heat of the coil 12 can be absorbed by the underground soil, and then the low-temperature water flows through the first delivery pipe 9 into the guide spiral groove 20, which can absorb the heat in the cabin shell 3. Finally, the water flows back from the delivery hose 17 and the second delivery pipe 11 to the cooling coil 12 for heat dissipation, thereby achieving continuous heat dissipation inside the cabin shell 3. The swivel 13 is made of a thermal expansion and contraction material. When the temperature inside the cabin shell 3 is higher, the volume of the swivel 13 becomes larger, and the part of the swivel 13 squeezing the delivery hose 17 increases, thereby increasing the speed of the water circulating in the delivery hose 17, thereby improving the water cooling effect of the cabin shell 3. When the temperature sensor 21 detects that the temperature inside the cabin shell 3 is higher than a preset threshold, the controller 22 can actively start the motor 6, and the motor 6 can drive the fan blades 7 to rotate to guide the external air flow through the air guide cover 8 and the air inlet 19 into the interior of the cabin shell 3, and finally be discharged from the air outlet 23, thereby improving the cooling effect inside the cabin shell 3.

[0033] The above specific embodiments are preferred embodiments of the present invention, and are not intended to limit the specific implementation scope of the present invention. The scope of the present invention includes but is not limited to the present specific embodiments. All equivalent changes made in accordance with the shape, structure, and method of the present invention are within the protection scope of the present invention.

Claims

1. A wind power generation equipment capable of high temperature alarm, characterized in that: The invention comprises a tower (10) fixedly mounted on the ground, wherein the top of the tower (10) is fixedly connected to a nacelle shell (3), a rotating shaft (2) is rotatably connected to a side wall of the nacelle shell (3), one end of the rotating shaft (2) is provided with a fan blade (1), the other end of the rotating shaft (2) is connected to a speed-increasing gearbox (4), the speed-increasing gearbox (4) is mounted in the nacelle shell (3), a generator (5) is mounted in the nacelle shell (3), the input shaft of the generator (5) is connected to the output end of the speed-increasing gearbox (4), an active air cooling device is provided on the side wall of the nacelle shell (3), and a liquid cooling device is provided on the side wall of the nacelle shell (3).

2. A wind power generation device capable of high temperature alarm according to claim 1, characterized in that: The active air cooling device comprises a motor (6), the motor (6) being fixedly connected to a side wall at one end of a cabin shell (3), the output shaft of the motor (6) being fixedly connected to a fan blade (7), the side wall of the cabin shell (3) being fixedly connected to an air guide cover (8), the motor (6) and the fan blade (7) being located inside the air guide cover (8), and a plurality of air inlet holes (19) and a plurality of air outlet holes (23) being respectively provided on the side walls at both ends of the cabin shell (3).

3. A wind power generation device capable of high temperature alarm according to claim 2, characterized in that: The air guide cover (8) is arranged in a cone shape.

4. A wind power generation device capable of high temperature alarm according to claim 1, characterized in that: The liquid cooling device comprises a cooling coil (12), wherein the cooling coil (12) is located below the ground, and the two ends of the cooling coil (12) are respectively fixedly connected to a first delivery pipe (9) and a second delivery pipe (11), wherein the first delivery pipe (9) and the second delivery pipe (11) both penetrate the inner wall of the tower (10), and a guide spiral groove (20) is provided in the side wall of the nacelle shell (3), wherein the guide spiral groove (20) is arranged in a spiral tube shape, and the side wall of the rotating shaft (2) is connected to a delivery hose (17) through a thermal pumping device, wherein one end of the delivery hose (17) is connected to an upper end of the second delivery pipe (11), and the other end of the delivery hose (17) is connected to one end of the guide spiral groove (20), and the other end of the guide spiral groove (20) is connected to an upper end of the first delivery pipe (9).

5. A wind power generation device capable of high temperature alarm according to claim 4, characterized in that: The thermal variable pumping device comprises a fixed ring (16), a placement ring cavity (18) is provided inside the fixed ring (16), the delivery hose (17) is located in the placement ring cavity (18), both ends of the delivery hose (17) pass through the fixed ring (16) and the side wall of the cabin shell (3), an annular groove (15) is provided on the inner ring side wall of the fixed ring (16), a rotating ring (13) is fixedly connected to the outer ring side wall of the rotating shaft (2), and two heat-sensitive extrusion blocks (14) are fixedly connected to the outer side wall of the rotating ring (13), and the two heat-sensitive extrusion blocks (14) extend into the annular groove (15) and abut against the side wall of the delivery hose (17).

6. A wind power generation device capable of high temperature alarm according to claim 5, characterized in that: The heat-sensitive extrusion block (14) is arranged in a semicircular plate shape and is made of aluminum material with obvious thermal expansion and contraction effects.

7. The wind power generation equipment capable of high temperature alarm according to claim 1, characterized in that: A temperature sensor (21) is provided inside the nacelle shell (3), a controller (22) is provided on the outer side wall of the nacelle shell (3), and the temperature sensor (21) and the motor (6) are both electrically connected to the controller (22).

Images