Ventilation and heat dissipation structure for tower footing of wind generating set

Abstract

The utility model belongs to the technical field of wind generating set tower footing, and discloses a wind generating set tower footing ventilation and heat dissipation structure which comprises a heat dissipation opening and a filter screen, the heat dissipation opening is formed in a tower drum, and the filter screen is installed in the heat dissipation opening through a locking device. The top of the filter screen is provided with a suction cup anti-falling unit used for preventing the filter screen from being separated from the heat dissipation opening. The filter screen is installed in the heat dissipation opening through the locking device, meanwhile, the suction cup anti-falling unit is arranged, the filter screen is further stabilized and prevented from shaking, and the filter screen is easy to disassemble and assemble.

Description

Technical Field

[0001] The utility model belongs to the technical field of tower bases of wind generator sets, and in particular relates to a ventilation and heat dissipation structure of tower bases of wind generator sets. Background Art

[0002] The internal space of the tower base is small and the heat dissipation is poor. In order to ensure the safe and stable operation of electrical equipment, a heat dissipation vent is generally opened at the bottom of the tower and a blower is installed to bring air outside the tower into the tower for cooling. In order to prevent external dust or debris from entering the tower through the heat dissipation vent, a filter is also installed at the heat dissipation vent.

[0003] Traditional filters are generally fixed in the heat dissipation port by screw and nut fixings. When the filter needs to be disassembled for cleaning, the disassembly and assembly steps are rather complicated and take a long time.

[0004] The patent document with publication number CN217999786U discloses "a ventilation and heat dissipation structure for the tower base of a wind turbine generator set", including a tower, on which is rotatably mounted an inspection door, on which is mounted a fan, on which is provided a rainproof nozzle, and on which is an air inlet and an air outlet; on which is mounted a shutter and a filter, and on which are fixedly connected two fixed blocks, on each of which is rotatably mounted a rotating rod, on which is fixedly connected a rotating block; on each of which is provided a sliding assembly, which comprises a rectangular block mounted on the fixed block, on which is slidably connected a sliding rod. When the application is in use, the rotating rod is first rotated. When the support block is rotated to a horizontal state, the bottom surface of the filter screen is brought into contact with the support block. Then, each rectangular block is moved until the ear plate is in close contact with the inspection door. The position of the rectangular block is kept unchanged by bolts. Under the elastic force of the spring, the protrusion is just engaged with the corresponding slot, so that the filter screen can be stably installed on the inspection door. Similarly, the filter screen can also be disassembled. When a lot of impurities are accumulated on the filter screen, the process of removing it for cleaning is also very simple, which is conducive to timely cleaning of the filter screen and also conducive to the discharge of hot air, thereby making the ventilation and heat dissipation effect of the tower base better.

[0005] Although this application can limit the filter, its operation process is not convenient. At the same time, it is still easy to loosen during long-term use, causing the filter plate to shake and unstable installation. Utility Model Content

[0006] The purpose of the utility model is to provide a ventilation and heat dissipation structure for the tower base of a wind turbine generator set. In the design, the filter is installed in the heat dissipation port through a locking device, and a suction cup anti-detachment unit is provided to further stabilize the filter and prevent shaking. The filter disassembly and assembly process is simple to operate, thus solving the problems described in the background technology.

[0007] The technical solution adopted by the utility model is a ventilation and heat dissipation structure of a tower base of a wind turbine generator set, comprising a heat dissipation port and a filter screen, wherein the heat dissipation port is opened on the tower, the filter screen is installed in the heat dissipation port through a locking device, and a suction cup anti-detachment unit is arranged on the top of the filter screen to prevent the filter screen from being separated from the heat dissipation port.

[0008] Furthermore, the locking device comprises two symmetrically arranged locking units, and the two locking units are respectively located on two sides of the filter screen.

[0009] Furthermore, the locking unit includes a pressing block, a locking block, an installation port and an elastic component. The installation port is opened on the side of the heat dissipation port, the pressing block is fixedly arranged on the side of the filter screen, the locking block is slidably embedded in the installation port, and the elastic component is connected between the locking block and the inner end surface of the installation port.

[0010] Furthermore, the elastic component includes an insertion rod, a mounting block and a telescopic spring, the insertion rod is fixedly connected to the locking block, the mounting block is fixedly mounted on the insertion rod, one end of the telescopic spring is fixedly connected to the mounting block and the other end is fixedly connected to the inner end surface of the mounting opening.

[0011] Furthermore, a limiting opening is provided at the upper edge of the installation opening, a connecting plate is rotatably installed in the limiting opening, two limiting rods are symmetrically fixedly connected to the bottom end of the connecting plate, and the installation block can be inserted between the two limiting rods.

[0012] Furthermore, the suction cup anti-detachment unit includes a fixed plate, a hollow rod, a suction cup and a control release structure, the fixed plate is fixedly connected to the top of the filter plate, the hollow rod is fixedly connected to the fixed plate, the suction cup is fixedly mounted on the end face of the hollow rod, and the control release structure is used to release the adsorption effect of the suction cup.

[0013] Furthermore, the control release structure includes a rotating shaft, a release port, a covering plate and a torsion spring, the release port is opened on the hollow rod, the rotating shaft is rotatably passed through the fixed plate and extends into the hollow rod, the covering plate is fixedly arranged on the rotating shaft and can completely block the release port, one end of the torsion spring is fixedly connected to the rotating shaft and the other end is fixedly connected to the fixed plate.

[0014] The beneficial effects of the utility model are:

[0015] 1. Through the cooperation between the locking block and the pressing block, the installation and removal of the filter can be completed quickly, avoiding the cumbersome steps of using screw and nut fixings, and improving the work efficiency of disassembling and installing the filter;

[0016] 2. The structural design of the connecting plate and the limit rod can limit the movement of the plug rod, preventing the plug rod from moving due to the vibration force, thereby causing the clamping effect between the locking block and the pressing block to disappear, thereby improving the stability of the filter installation;

[0017] 3. The suction cup anti-detachment unit can prevent the filter from being separated from the tower when the clamping effect between the locking block and the pressing block disappears, which is a safety effect, and further improves the stability of the filter installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of various components on the filter screen of the utility model;

[0020] Figure 3 For the utility model Figure 1 A magnified view of the structure at center;

[0021] Figure 4 For the utility model Figure 2 A magnified view of the structure at B in the middle;

[0022] Explanation of the reference numerals in the accompanying drawings: 1. tower; 2. filter screen; 3. pressure block; 4. mounting opening; 5. insertion rod; 6. locking block; 7. mounting block; 8. telescopic spring; 9. connecting plate; 10. limiting rod; 11. limiting opening; 12. fixing plate; 13. hollow rod; 14. suction cup; 15 covering plate; 16. release opening; 17. rotating shaft; 18. torsion spring; 21. heat dissipation opening. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer and more understandable, the technical solution of the utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figures 1 to 4 As shown, the utility model provides a wind turbine tower base ventilation and heat dissipation structure, including a heat dissipation port 21 and a filter 2. The heat dissipation port 21 is opened on the tower 1, and the filter 2 is installed in the heat dissipation port 21 through a locking device. A suction cup anti-detachment unit is provided on the top of the filter 2 to prevent the filter 2 from being separated from the heat dissipation port 21.

[0025] The locking device includes two symmetrically arranged locking units, which are respectively located on both sides of the filter 2. The locking unit includes a pressing block 3, a locking block 6, a mounting port 4 and an elastic component. The mounting port 4 is opened on the side of the heat dissipation port 21. The pressing block 3 is fixedly arranged on the side of the filter 2. The locking block 6 is slidably embedded in the mounting port 4. The elastic component is connected between the locking block 6 and the inner end surface of the mounting port 4. The elastic component includes an insertion rod 5, a mounting block 7 and a telescopic spring 8. The insertion rod 5 is fixedly connected to the locking block 6. The mounting block 7 is fixedly mounted on the insertion rod 5. One end of the telescopic spring 8 is fixedly connected to the mounting block 7 and the other end is fixedly connected to the inner end surface of the mounting port 4.

[0026] When the filter 2 needs to be installed, it is only necessary to align the filter 2 with the heat dissipation port 21, and align the inclined surfaces of the two pressing blocks 3 with the inclined surfaces of the two locking blocks 6 respectively, and then push the filter 2 into the heat dissipation port 21. At this time, the inclined surfaces of the pressing blocks 3 will slide in contact with the inclined surfaces of the locking blocks 6. Under the effect of squeezing, the two locking blocks 6 will respectively move away from each other with the two insertion rods 5 in the horizontal direction until the two pressing blocks 3 move to abut against the inner wall of the installation port 4. At this time, the two locking blocks 6 will no longer be in contact with the two When the pressing block 3 contacts, the pressing force exerted by the pressing block 3 on the locking block 6 disappears, and the locking block 6 and the insertion rod 5 will quickly move and reset under the elastic potential energy of the telescopic spring 8. The two locking blocks 6 will respectively form a snap-fit ​​lock with the two pressing blocks 3, thereby completing the installation of the filter 2. When the filter 2 needs to be removed, just pull the installation block 7 to move the two insertion rods 5 away from each other in the horizontal direction until the two locking blocks 6 are no longer in contact with the two pressing blocks 3. At this time, the filter 2 can be taken out from the heat dissipation port 21.

[0027] A limiting opening 11 is provided at the upper edge of the installation opening 4 , in which a connecting plate 9 is rotatably installed. Two limiting rods 10 are symmetrically fixedly connected to the bottom end of the connecting plate 9 , and the installation block 7 can be inserted between the two limiting rods 10 .

[0028] When the two locking blocks 6 are respectively engaged with the two pressing blocks 3, the connecting plate 9 is rotated downward so that the mounting block 7 is engaged between the two limit rods 10, thereby completing the locking of the mounting block 7. The two insertion rods 5 cannot move at this time, preventing the insertion rods 5 from moving due to the influence of vibration force, thereby causing the engagement effect between the locking block 6 and the pressing block 3 to disappear, thereby releasing the lock on the filter screen 2, and improving the stability of the installation of the filter screen 2. When it is necessary to control the movement of the insertion rod 5, it is only necessary to rotate the connecting plate 9 upward until the mounting block 7 is out of the position between the two limit rods 10.

[0029] Under the action of gravity, the connecting plate 9 will automatically be in a drooping state, so as to prevent the connecting plate 9 from rising up at will and causing the mounting block 7 to fall out from between the limiting rods 10.

[0030] The suction cup anti-detachment unit comprises a fixed plate 12, a hollow rod 13, a suction cup 14 and a control release structure, wherein the fixed plate 12 is fixedly connected to the top of the filter plate 2, the hollow rod 13 is fixedly connected to the fixed plate 12, the suction cup 14 is fixedly mounted on the end surface of the hollow rod 13, and the control release structure is used to release the adsorption effect of the suction cup 14. The control release structure comprises a rotating shaft 17, a release opening 16, a covering plate 15 and a torsion spring 18, the release opening 16 is provided on the hollow rod 13, the rotating shaft 17 is rotatably penetrated on the fixed plate 12 and extends into the hollow rod 13, the covering plate 15 is fixedly arranged on the rotating shaft 17 and can completely block the release opening 16, and one end of the torsion spring 18 is fixedly connected to the rotating shaft 17 and the other end is fixedly connected to the fixed plate 12.

[0031] A slot is provided on the tower 1, and the hollow rod 13 can be inserted into the slot, and the suction cup 14 is adsorbed on the inner end surface of the slot.

[0032] When the pressing block 3 enters the installation opening 4, the suction cup 14 will also enter the slot on the tower 1 and tightly abut against its inner end surface. At this time, since the release opening 16 is covered by the covering plate 15, the gas in the hollow rod 13 will slip out from the gap between the contact surface of the suction cup 14 and the slot of the tower 1, and the suction cup 14 will be adsorbed on the slot of the tower 1. When the clamping effect between the locking block 6 and the pressing block 3 disappears, the filter screen 2 can be prevented from being separated from the tower 1, that is, the insurance effect, which further improves the stability of the installation of the filter screen 2;

[0033] When the adsorption needs to be released, it is only necessary to rotate the rotating shaft 17 to control the covering plate 15 to no longer cover the outlet 16. At this time, the gas in the outside will enter the hollow rod 13 from the outlet 16, thereby releasing the adsorption of the suction cup 14, which is convenient and quick. After releasing the rotating shaft 17, the rotating shaft 17 will quickly rotate and reset under the elastic potential energy of the torsion spring 18, and the covering plate 15 will cover the outlet 16 again.

[0034] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0035] The above description is only a preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the utility model according to the technical scheme and utility model concept of the utility model, which should be covered by the protection scope of the utility model.

Claims

1. A wind turbine tower base ventilation and heat dissipation structure, characterized in that: It comprises a heat dissipation port and a filter screen, wherein the heat dissipation port is provided on the tower, the filter screen is installed in the heat dissipation port through a locking device, and a suction cup anti-detachment unit is provided on the top of the filter screen to prevent the filter screen from being separated from the heat dissipation port.

2. The wind turbine tower base ventilation and heat dissipation structure according to claim 1 is characterized in that: The locking device comprises two symmetrically arranged locking units, and the two locking units are respectively located on two sides of the filter screen.

3. The wind turbine tower base ventilation and heat dissipation structure according to claim 2 is characterized in that: The locking unit includes a pressing block, a locking block, an installation port and an elastic component. The installation port is opened on the side of the heat dissipation port, the pressing block is fixedly arranged on the side of the filter screen, the locking block is slidably embedded in the installation port, and the elastic component is connected between the locking block and the inner end surface of the installation port.

4. The wind turbine tower base ventilation and heat dissipation structure according to claim 3 is characterized in that: The elastic component includes an insertion rod, a mounting block and a telescopic spring, the insertion rod is fixedly connected to the locking block, the mounting block is fixedly mounted on the insertion rod, one end of the telescopic spring is fixedly connected to the mounting block and the other end is fixedly connected to the inner end surface of the mounting opening.

5. The wind turbine tower base ventilation and heat dissipation structure according to claim 4, characterized in that: A limiting opening is provided at the upper edge of the installation opening, a connecting plate is rotatably installed in the limiting opening, two limiting rods are symmetrically fixedly connected to the bottom end of the connecting plate, and the installation block can be inserted between the two limiting rods.

6. The wind turbine tower base ventilation and heat dissipation structure according to claim 1, characterized in that: The suction cup anti-detachment unit includes a fixed plate, a hollow rod, a suction cup and a control release structure. The fixed plate is fixedly connected to the top of the filter plate, the hollow rod is fixedly connected to the fixed plate, the suction cup is fixedly installed on the end face of the hollow rod, and the control release structure is used to release the adsorption effect of the suction cup.

7. The wind turbine tower base ventilation and heat dissipation structure according to claim 6, characterized in that: The control release structure includes a rotating shaft, a release port, a covering plate and a torsion spring. The release port is opened on the hollow rod. The rotating shaft is rotatably passed through the fixed plate and extends into the hollow rod. The covering plate is fixedly arranged on the rotating shaft and can completely block the release port. One end of the torsion spring is fixedly connected to the rotating shaft and the other end is fixedly connected to the fixed plate.

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