Salt mist filter of offshore wind turbine

Abstract

The invention relates to the technical field of filters, and discloses a salt mist filter of an offshore wind driven generator, the salt mist filter comprises a filter element outer cylinder, one end of the filter element outer cylinder is provided with an adapter cylinder, one side of the adapter cylinder far away from the filter element outer cylinder is provided with an accommodating cavity column, and one side of the accommodating cavity column far away from the adapter cylinder is provided with a tube plate; a plurality of supporting columns are arranged on the side edge of the side, away from the containing cavity column, of the tube plate, an adsorption plate is arranged on the sides, away from the tube plate, of the supporting columns, a plurality of receiving tubes are connected to the adsorption plate, an end plate is connected to the other sides of the receiving tubes, and an annular baffle is arranged on the side, away from the adsorption plate, of the end plate. A heating distribution mechanism is arranged in the annular baffle and located in the end plate, and the interior of the annular baffle is connected with the interior of the containing cavity column in a penetrating mode. A filter plate is arranged on the side, located on the adapter cylinder, of the containing cavity column, an inner cylinder is arranged in the filter element outer cylinder, and an activated carbon filter element is arranged in the inner cylinder.

Description

Technical Field

[0001] The present invention relates to the technical field of filters, and more specifically, to a salt spray filter for an offshore wind turbine. Background Art

[0002] Offshore wind power is an important area of renewable energy development and one of the important directions of global wind power development in recent years. It is still in its infancy, and the software and hardware supporting facilities need to be improved. The development path faces many challenges. The offshore environment is special, and there are high requirements for the quality of wind turbines. Moreover, offshore wind turbines are generally built in deep waters far from the coast, and the installation and maintenance costs are high. This places higher requirements on the reliability and stability of the equipment. The salt spray filter is used to filter the salt spray in the offshore air, ensure the cleanliness of the air entering the inside of the wind turbine tower, control the internal environment of the wind turbine, reduce the corrosion of the salt spray particles on the equipment, and ensure the normal operation of the system. A publicly available material with the patent number CN201720178847.8 and the patent name of a wet coalescing desalting filter applied to island reef environments is retrieved. In this publicly available material, a salt spray filter is described. By analyzing this publicly available material, it can be seen that it adopts a relatively common structure, has a short service life, is not convenient to disassemble, and the salt spray in the offshore air is easy to corrode the equipment. In view of these deficiencies, it is necessary to develop a salt spray filter for an offshore wind turbine with a simple structure, a long service life, and quick disassembly and replacement. Summary of the Invention

[0003] The technical task of the present invention is to address the above deficiencies and provide a salt spray filter for an offshore wind turbine to solve the above problems.

[0004] The technical solution of the present invention is realized as follows: A salt spray filter for an offshore wind turbine includes an outer filter element cylinder. One end of the outer filter element cylinder is provided with an adapter cylinder. A receiving cavity column is provided on the side of the adapter cylinder away from the outer filter element cylinder. A tube plate is provided on the side of the receiving cavity column away from the adapter cylinder. A plurality of support columns are provided on the side edge of the tube plate away from the receiving cavity column. An adsorption plate is provided on the side of the support column away from the tube plate. A plurality of receiving tubes are connected to the adsorption plate. The other side of the receiving tube is connected to an end plate. An annular baffle is provided on the side of the end plate away from the adsorption plate. A heating distribution mechanism is provided inside the end plate within the annular baffle. The inside of the annular baffle is connected to the inside of the receiving cavity column in a through manner. A dispersing mechanism is provided inside the receiving cavity column. A filter plate is provided on the side of the receiving cavity column located on the side of the adapter cylinder. An inner cylinder is provided inside the outer filter element cylinder, and an activated carbon filter element is provided inside the inner cylinder.

[0005] Preferably, a through hole is provided in the middle of the tube sheet, the annular baffle is clamped in the through hole, a number of first fastening holes are provided on the tube sheet around the through hole, a number of second fastening holes are provided around the end plate, and fasteners are inserted between the first fastening holes and the second fastening holes.

[0006] Preferably, the heating distribution mechanism includes a cross beam column which is of a cavity structure. A number of straight channels are inserted in the cross beam column. The top of the straight channels penetrates through the end plate and is connected to the end of the receiving tube connected to one side. Distribution pipes are provided on both sides of the cross beam column within the annular baffle. Heating pipes are provided in the distribution pipes. The heating pipes are connected to external control. A number of distribution ports are provided at the bottom of the distribution pipes. A receiving port is connected to one side of the top of the distribution pipe, and the receiving port penetrates through the end plate.

[0007] Preferably, a first heat exchange tube group and a second heat exchange tube group are provided at the through hole of the tube sheet at the top of the accommodation cavity column.

[0008] Preferably, the distribution ports are formed by several nozzles provided on the distribution pipes, and each distribution port extends along the width direction of the distribution pipe.

[0009] Preferably, the openings of the distribution ports are arranged obliquely upward, so that the refrigerant in the distribution pipes can be sprayed out of the distribution ports at an obliquely upward angle.

[0010] Preferably, the dispersion mechanism includes a fixed column which is installed on the filter plate. A worm is provided at the top of the fixed column. Activated carbon grid plates are sleeved on the upper and lower parts of the worm. A number of support rods are provided on the top of the activated carbon grid plate near one side of the worm. A fan plate is sleeved on the support rods, and a spring is sleeved on the support rods above the fan plate.

[0011] Preferably, a group of first support plates is provided on one side of the top of the activated carbon grid plate. A shaft is inserted between the upper parts of the first support plates. A driver is provided at one end of the shaft. A gear is sleeved on the shaft between the first support plates. An eccentric wheel is provided on the shaft on one side of the gear. A limiting wheel is provided above the eccentric wheel and is matched with the eccentric wheel. A connecting shaft is inserted through the middle of the limiting wheel. Support plates are provided at both ends of the connecting shaft. A rotating plate is provided at the top of the support plates, and the other side of the rotating plate is sleeved on the worm.

[0012] Preferably, an inner rotating cylinder is provided in the accommodation cavity column, the activated carbon grid plate is located in the inner rotating cylinder, and the side of the rotating plate away from the worm is fixed on the inner wall of the inner rotating cylinder; the aperture diameter on the activated carbon grid plate is larger than the aperture diameter of the filter plate.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are as follows: By providing a heating distribution mechanism on the accommodation cavity column, the heating distribution mechanism generates heat to heat the incoming air, and the salt contained in the air will be decomposed, reducing the corrosion of the equipment by salt mist particles.

[0014] The dispersion mechanism provided in the accommodation cavity column can disperse the incoming air and the decomposed salt, causing the air to roll, increasing the rolling force of the air, and improving the salt decomposition property.

[0015] Filter the salt mist in the marine air, thereby increasing the service life.

[0016] The filter element outer cylinder and the adapter cylinder are connected and fixed by an integral clamp, which is more convenient for disassembly, replacement, repair and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0018] Figure 1 is the overall structural schematic diagram according to the embodiment of the present invention; Figure 2 is the structural schematic diagram of the filter element outer cylinder according to the embodiment of the present invention; Figure 3 is the exploded view of the tube sheet connection according to the embodiment of the present invention; Figure 4 is the structural schematic diagram of the annular baffle according to the embodiment of the present invention; Figure 5 is the structural schematic diagram of the dispersion mechanism according to the embodiment of the present invention.

[0019] In the figure: 1. Filter element outer cylinder; 2. Adapter cylinder; 3. Accommodation cavity column; 4. Tube sheet; 5. Support pillar; 6. Adsorption plate; 7. Receiving pipe; 8. End plate; 9. Annular baffle; 10. Filter plate; 11. Inner cylinder; 12. Activated carbon filter element; 13. Fastener; 14. Cross beam column; 15. Straight channel; 16. Distribution pipe; 17. Heating pipe; 18. Distribution port; 19. Receiving port; 20. First heat exchange tube group; 21. Second heat exchange tube group; 22. Fixed column; 23. Worm; 24. Activated carbon grid plate; 25. Support rod; 26. Fan plate; 27. Spring; 28. First support plate; 29. Gear; 30. Eccentric wheel; 31. Limiting wheel; 32. Second support plate; 33. Rotating plate; 34. Inner rotating cylinder. Detailed implementation manners

[0020] In order to more clearly understand the above objects, features, and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] According to an embodiment of the present invention, as shown in Figures 1 - 5 shown: The present invention provides a salt spray filter for an offshore wind turbine, including an outer filter element cylinder 1. One end of the outer filter element cylinder 1 is provided with an adapter cylinder 2. A receiving cavity column 3 is provided on the side of the adapter cylinder 2 away from the outer filter element cylinder 1. A tube plate 4 is provided on the side of the receiving cavity column 3 away from the adapter cylinder 2. A plurality of support columns 5 are provided on the side edge of the tube plate 4 away from the receiving cavity column 3. An adsorption plate 6 is provided on the side of the support column 5 away from the tube plate 4. A plurality of receiving tubes 7 are connected to the adsorption plate 6. The other side of the receiving tube 7 is connected to an end plate 8. An annular baffle 9 is provided on the side of the end plate 8 away from the adsorption plate 6. A heating distribution mechanism is provided inside the annular baffle 9 and inside the end plate 8. The inside of the annular baffle 9 is in through connection with the inside of the receiving cavity column 3. A dispersion mechanism is provided inside the receiving cavity column 3. A filter plate 10 is provided on the side of the receiving cavity column 3 where the adapter cylinder 2 is located. An inner cylinder 11 is provided inside the outer filter element cylinder 1. An activated carbon filter element 12 is provided inside the inner cylinder 11.

[0023] Among them, a through hole is provided in the middle of the tube sheet 4, the annular baffle 9 is clamped in the through hole, a number of first fastening holes are provided on the tube sheet 4 around the through hole, a number of second fastening holes are provided around the end plate 8, and a fastener 13 is inserted between the first fastening holes and the second fastening holes. The heating distribution mechanism includes a cross beam column 14, the cross beam column 14 is of a cavity structure, a number of straight channels 15 are inserted in the cross beam column 14, the top of the straight channel 15 penetrates through the end plate 8 and is connected to the end of the receiving pipe 7 connected to one side, distribution pipes 16 are provided on both sides of the cross beam column 14 inside the annular baffle 9, heating pipes are provided in the distribution pipes 16, the heating pipes are connected to an external control, a number of distribution ports 18 are provided at the bottom of the distribution pipes 16, a receiving port 19 is connected to one side of the top of the distribution pipe 16, the receiving port 19 penetrates through the end plate 8, a first heat exchange tube group 20 and a second heat exchange tube group 21 are provided at the through hole of the tube sheet 4 at the top of the accommodation cavity column 3, the distribution ports 18 are formed by a number of nozzles provided on the distribution pipes 16, each distribution port 18 extends along the width direction of the distribution pipe 16, and the opening of the distribution port 18 is arranged obliquely upward, so that the refrigerant in the distribution pipe 16 can be sprayed out from the distribution port 18 at an obliquely upward angle.

[0024] In addition, the dispersion mechanism includes a fixed column 22, the fixed column 22 is installed on the filter plate 10, a worm 23 is provided at the top of the fixed column 22, an activated carbon grid plate 24 is sleeved on the upper and lower parts of the worm 23, a number of support rods 25 are provided on the top of the activated carbon grid plate 24 near one side of the worm 23, a fan plate 26 is sleeved on the support rods 25, a spring 27 is sleeved on the support rods 25 above the fan plate 26, a group of first support plates 28 are provided on one side of the top of the activated carbon grid plate 24, a shaft is inserted between the upper parts of the first support plates 28, a driver is provided at one end of the shaft, a gear 29 is sleeved on the shaft between the first support plates 28, an eccentric wheel 30 is provided on the shaft on one side of the gear 29, a limiting wheel 31 is provided above the eccentric wheel 30, a connecting shaft is inserted through the middle of the limiting wheel 31, support plates 32 are provided at both ends of the connecting shaft, a rotating plate 33 is provided at the top of the support plates 32, the other side of the rotating plate 33 is sleeved on the worm 23, an inner rotating cylinder 34 is provided in the accommodation cavity column 3, the activated carbon grid plate 24 is located inside the inner rotating cylinder 34, and the side of the rotating plate 33 away from the worm 23 is fixed on the inner wall of the inner rotating cylinder 34; the aperture diameter on the activated carbon grid plate 24 is larger than the aperture diameter of the filter plate 10.

[0025] A tube plate 4 and an adsorption plate 6 are provided at the air inlet hole of the filter element outer cylinder 1. The tube plate 4 and the adsorption plate 6 form a double-layer structure. A plurality of absorption holes are provided on the adsorption plate 6, and a receiving tube 7 penetrates through the adsorption plate 6. The offshore air enters the cavity formed between the annular baffles 9 through the micropores on the adsorption plate 6 and the receiving tube 7.

[0026] In addition, the left and right sides of the provided first heat exchange tube group 20 and second heat exchange tube group 21 are symmetrically arranged, and there is a gap between the first heat exchange tube group 20 and the second heat exchange tube group 21, and the gap extends in the horizontal and vertical directions ( Figure 3 ). The first heat exchange tube group 20 and the second heat exchange tube group 21 can operate simultaneously or independently. That is to say, there are three working states. One is that only the first heat exchange tube group 20 is operating, the second is that only the second heat exchange tube group 21 is operating, and the third is that both are operating simultaneously.

[0027] A filter cloth bag is provided at the bottom of the adapter cylinder 2. The adapter cylinder 2 and the filter element outer cylinder 1 are of a detachable structure, which is convenient for replacing and cleaning the internal filter cloth bag. The accommodation cavity column 3 and the tube plate 4 are of a detachable structure.

[0028] The detailed usage method and function of this embodiment: When the marine air enters the cavity formed within the annular baffle 9 through the absorption holes on the receiving pipe 7 and the adsorption plate 6, after the heating pipes installed within the distribution pipe 16 operate, heat is generated and transferred out. At the same time, the refrigerant placed inside is sprayed and dispersed along with the distribution ports 18. Among them, the refrigerant can enter the distribution pipe 16 through the refrigerant inlet, and multiple nozzles are arranged on the pipe wall of the distribution pipe 16 on the side opposite to the refrigerant inlet. Each nozzle can form a distribution port 18, and the multiple distribution ports 18 communicate with the cavity formed within the annular baffle 9, so that the refrigerant stored within the cavity can be sprayed outwards through the multiple distribution ports 18. And the distribution ports 18 formed by the nozzles are strip-shaped. When the multiple nozzles are installed in the corresponding nozzle installation holes, each distribution port 18 extends along the width direction of the distribution pipe 16. The setting of the distribution port 18 extending along the width direction of the distribution pipe 16 enables the refrigerant sprayed out from the distribution port 18 to diffuse in the width direction of the distribution pipe 16. The refrigerant sprayed onto the tube sheet 4 will flow downward along the wall surface of the tube sheet 4 until it flows into the heat exchange tubes below. The refrigerant flows inside several heat exchange tubes. Among them, the first heat exchange tube group 20 and the second heat exchange tube group 21 are composed of several heat exchange tubes. When the refrigerant flows inside several heat exchange tubes, the refrigerant flowing inside the heat exchange tube group can exchange heat with the water flowing outside. Among them, after the marine air enters the interior, under the evaporation of the high temperature inside, the humidity in the air decomposes the salt content contained in the air. At the same time, the driver connected to the drive shaft operates, the driver drives the shaft to rotate, and the gear 29 will rotate. After the gear 29 rotates, it will move along the tooth grooves of the worm 23. In this way, while the gear 29 rotates on its own, it will also move along the worm 23. The eccentric wheel 30 will push against the upper-connected limit wheel 31 under the rotation of the gear 29, and the limit wheel 31 will move up and down. The limit wheel 31 pushes the rotating plate 33 to slide up and down on the worm 23. At the same time, when the gear 29 rotates along the worm 23, the side of the gear 29 will push the limit wheel 31 forward. In this way, after the inner rotating cylinder 34 generates up and down movement, it will also generate rotation, and the air entering the interior will form a roll along with the rotation and up and down movement of the inner rotating cylinder 34. And the heat generated inside will also be diffused with the rotational movement force, decomposing the salt content contained in the entering air. The salt particles enter the transfer cylinder 2 along with the filter plate 10 and are filtered and intercepted on the filter cloth bag inside the transfer cylinder 2. And the decomposed moisture and gas enter the lower inner cylinder 11 and are filtered by the activated carbon filter element. Then, after removing the transfer cylinder 2, the filter cloth bag inside is taken out to process the precipitated and intercepted salt content.

[0029] Through the above specific embodiments, those skilled in the art can easily implement the present invention. However, it should be understood that the present invention is not limited to the above specific embodiments. Based on the disclosed embodiments, those skilled in the art can arbitrarily combine different technical features to achieve different technical solutions.

Claims

1. A salt spray filter for an offshore wind turbine, characterized in that: The invention comprises a filter element outer cylinder (1), a transfer cylinder (2) being provided at one end of the filter element outer cylinder (1), a receiving cavity column (3) being provided at a side of the transfer cylinder (2) away from the filter element outer cylinder (1), a tube sheet (4) being provided at a side of the receiving cavity column (3) away from the transfer cylinder (2), a plurality of pillars (5) being provided at a side of the tube sheet (4) away from the receiving cavity column (3), an adsorption plate (6) being provided at a side of the pillar (5) away from the tube sheet (4), a plurality of receiving tubes (7) being connected to the adsorption plate (6), and the receiving tubes (7) being provided at a side of the receiving cavity column (3). One side is connected to an end plate (8), and a side of the end plate (8) away from the adsorption plate (6) is provided with an annular baffle (9), and a heating distribution mechanism is provided inside the annular baffle (9) and located inside the end plate (8), and the inside of the annular baffle (9) is connected to the inside of the accommodating cavity column (3); a dispersing mechanism is provided inside the accommodating cavity column (3), and a filter plate (10) is provided on one side of the accommodating cavity column (3) located on the adapter cylinder (2); an inner cylinder (11) is provided inside the filter element outer cylinder (1), and an activated carbon filter element (12) is provided inside the inner cylinder (11).

2. A salt spray filter for an offshore wind turbine according to claim 1, characterized in that: A through hole is provided in the middle of the tube plate (4), the annular baffle (9) is snap-fitted into the through hole, a plurality of first fastening holes are provided on the tube plate (4) around the through hole, a plurality of second fastening holes are provided around the end plate (8), and a fastener (13) is inserted between the first fastening hole and the second fastening hole.

3. A salt spray filter for an offshore wind turbine according to claim 1, characterized in that: The heating distribution mechanism comprises a crossbeam (14), wherein the crossbeam (14) is a hollow structure, wherein a plurality of straight channels (15) are interspersed in the crossbeam (14), wherein the top of the straight channel (15) passes through the end plate (8) and is connected to the end of a receiving tube (7) connected to one side, and distribution tubes (16) are provided on both sides of the crossbeam (14) and located in the annular baffle (9), wherein a heating tube is provided in the distribution tube (16), wherein the heating tube is connected to an external control, wherein a plurality of distribution ports (18) are provided at the bottom of the distribution tube (16), and a receiving port (19) is connected to one side of the top of the distribution tube (16), wherein the receiving port (19) passes through the end plate (8).

4. A salt spray filter for an offshore wind turbine according to claim 3, characterized in that: A first heat exchange tube group (20) and a second heat exchange tube group (21) are provided at the top of the accommodating cavity column (3) at the through hole of the tube sheet (4).

5. A salt spray filter for an offshore wind turbine according to claim 1, characterized in that: The dispensing opening (18) is formed by a plurality of nozzles arranged on the dispensing pipe (16), and each of the dispensing openings (18) extends along the width direction of the dispensing pipe (16).

6. A salt spray filter for an offshore wind turbine according to claim 1, characterized in that: The opening of the distribution port (18) is arranged obliquely upward, so that the refrigerant in the distribution pipe (16) can be sprayed out from the distribution port (18) at an obliquely upward angle.

7. A salt spray filter for an offshore wind turbine according to claim 1, characterized in that: The dispersing mechanism comprises a fixed column (22), the fixed column (22) being mounted on the filter plate (10), a vortex rod (23) being provided at the top of the fixed column (22), an activated carbon grid plate (24) being sleeved on the upper and lower parts of the vortex rod (23), a plurality of support rods (25) being provided at the top of the activated carbon grid plate (24) close to the vortex rod (23), a fan plate (26) being sleeved on the support rod (25), and a spring (27) being sleeved on the support rod (25) above the fan plate (26).

8. A salt spray filter for an offshore wind turbine according to claim 7, characterized in that: A group of support plates (28) are provided on one side of the top of the activated carbon grid plate (24), a shaft is inserted between the upper parts of the support plates (28), a driver is provided at one end of the shaft, a gear (29) is sleeved on the shaft between the support plates (28), an eccentric wheel (30) is provided on one side of the gear (29) and located on the shaft, a matching limiting wheel (31) is provided above the eccentric wheel (30), a connecting shaft is inserted in the middle of the limiting wheel (31), support plates (32) are provided at both ends of the connecting shaft, a rotating plate (33) is provided on the top of the support plate (32), and the other side of the rotating plate (33) is sleeved on the worm (23).

9. A salt spray filter for an offshore wind turbine according to claim 8, characterized in that: An inner rotating cylinder (34) is provided in the accommodating cavity column (3), the activated carbon grid plate (24) is located in the inner rotating cylinder (34), and the side of the rotating plate (33) away from the worm (23) is fixed to the inner wall of the inner rotating cylinder (34); the mesh size on the activated carbon grid plate (24) is larger than the aperture of the filter plate (10).

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