Converter detection device based on wind generating set

Abstract

The invention discloses a converter detection device based on a wind generating set, and relates to the technical field of converter corrosion detection, and the converter detection device comprises a salt spray test mechanism, and also comprises a salt spray sedimentation precise control mechanism which is installed in the salt spray test mechanism and comprises a multidirectional sedimentation collection mechanism and a liquid drop mistaken collection control mechanism; the liquid drop mistaken collection control mechanism comprises a scraping plate, and a flow guide groove is formed in one side of the scraping plate; according to the invention, the operation simulation mechanism is installed to heat the element, so that the temperature of the element is consistent with the temperature generated during operation, thereby simulating the temperature environment of the element during actual operation and the operation environment of a circuit board, and enabling the detection result to be more accurate; through the arrangement of the accumulated water treatment mechanism, the circuit board is inclined and vibrates, so that accumulated water on the detection piece is dispersed and separated from the circuit board, and the phenomenon of uneven corrosion caused by the accumulated water on the circuit board is effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of converter corrosion detection, and particularly to a detection device for a converter of a wind turbine generator set. Background Art

[0002] The converter of a wind turbine generator set is mainly installed offshore or on land following the wind turbine generator. For the special offshore environment, it is necessary to conduct corrosion tests on the converter of the wind turbine generator set to ensure the service life of the converter of the wind turbine generator set; The circuit board salt spray test equipment is a key equipment specifically used to simulate the marine or salty industrial atmospheric environment and conduct corrosion resistance tests on circuit boards (PCBs) and their components (PCBAs). Its main purpose is to evaluate the material tolerance of the circuit board in a salt spray environment, the coating protection effect, the corrosion resistance of metal components, and the stability of electrical performance.

[0003] In the prior art, during the corrosion process of the circuit board, detection cannot be carried out during operation, which easily leads to short - circuit situations. However, the temperature generated by the components themselves also has a certain impact on the corrosive gas. Therefore, the prior art cannot conform to the temperature environment during the actual operation of the circuit board, affecting the detection results. Moreover, due to the dense components on the circuit board, when salt spray settles on the surface, it is easy to cause liquid accumulation, and the liquid accumulation will cause excessive corrosion at that part, resulting in uneven corrosion. Summary of the Invention

[0004] The present invention provides a detection device for a converter of a wind turbine generator set to solve the above - mentioned deficiencies in the prior art.

[0005] To achieve the above object, the present invention adopts the following technical solutions: The detection device for a converter of a wind turbine generator set includes a salt spray test mechanism, and further includes: A salt spray settlement precise control mechanism, which is installed inside the salt spray test mechanism and includes a multi - azimuth settlement collection mechanism and a liquid droplet mis - collection control mechanism; The multi - azimuth settlement collection mechanism includes a reciprocating screw one, and a moving plate one is sleeved on the external thread of the reciprocating screw one, and a collector is fixed inside the moving plate one; The liquid droplet mis - collection control mechanism includes a scraper, and a diversion groove is installed on one side of the scraper; An operation simulation mechanism, which is installed inside the salt spray test mechanism and includes a mounting plate, and a plurality of heating columns are fixed on the top of the mounting plate; A water accumulation treatment mechanism, which is connected to the operation simulation mechanism and the salt spray test mechanism, and includes a reciprocating screw two and two arc teeth.

[0006] Further, the salt spray test mechanism includes a salt solution tank, a feeding port is provided at the top of the salt solution tank, and an air compressor is fixed inside the salt solution tank; One side of the salt solution tank is fixed with a test chamber, the top of the test chamber is rotatably connected with a chamber cover, and a heater is installed at the bottom of the test chamber; A nozzle is installed inside the test chamber, and the nozzle is communicated with the air compressor and the salt solution tank; One side of the salt solution tank is fixed with a controller, and the controller is electrically connected to the air compressor.

[0007] Further, the multi-directional sedimentation collection mechanism further includes a belt assembly connected to one end of each of the two reciprocating screws. The two reciprocating screws are rotatably connected to the test chamber. A guide rod is sleeved inside the first moving plate, and the guide rod is fixed to the inner wall of the test chamber; A collection bottle is installed on the outer wall of the test chamber, and the collection bottle is communicated with the two collectors; One end of one of the reciprocating screws is fixed with a one-way gear.

[0008] Further, the liquid drop mis-collection control mechanism further includes a reciprocating screw sleeved inside the scraper in a threaded manner. The reciprocating screw is rotatably connected inside the chamber cover. One end of the reciprocating screw is installed with a one-way gear. A guide rod is sleeved inside the scraper, and the guide rod is fixed to the inner wall of the chamber cover; Two shielding frames are fixed on one inner wall of the test chamber; One side of the test chamber is fixed with a motor. The motor is electrically connected to the controller. The output end of the motor is fixed with a gear. One side of the gear meshes with the one-way gear, and the other side meshes with the one-way gear.

[0009] Further, the operation simulation mechanism further includes a support rod fixed to the inner bottom wall of the test chamber. The top end of the support rod is hinged with a mounting frame. A plurality of limit columns are fixed on the top of the mounting frame. The mounting plate is fixed on the top of the mounting frame. An anti-corrosion coating is provided on the outside of the heating column and the mounting plate. A plurality of heating columns are electrically connected to the controller. A plurality of detecting elements are fixed on the outside of the plurality of limit columns. The positions of the plurality of heating columns respectively correspond to the bottom positions of the plurality of elements of the detecting elements.

[0010] Further, the water accumulation treatment mechanism further includes a motor fixed to the bottom of the test chamber. The motor is electrically connected to the controller. The output end of the motor is fixedly connected to the bottom end of the reciprocating screw. A moving plate is threadedly sleeved on the outside of the reciprocating screw. One side of the moving plate is rotatably connected with a connecting frame. The top of the connecting frame is rotatably connected with the bottom of the mounting frame; The two arc-shaped teeth are symmetrically arranged. A fixing frame is fixed on one side of the arc-shaped tooth, and the fixing frame is fixed on the inner bottom wall of the test chamber. A dial plate is meshed with one side of the arc-shaped tooth, and one side of the dial plate is fixedly connected to the mounting frame.

[0011] Compared with the existing technology, the beneficial effects of the present invention are as follows: 1. By installing the precise control mechanism for salt spray sedimentation, the present invention effectively scrapes the condensed water generated on the inner wall of the box cover, preventing the condensed water from accumulating too much and dripping into the collector, thereby avoiding affecting the accuracy of the salt spray sedimentation result. In addition, by driving the collector to move with the moving plate, the uniformity of salt spray collection is ensured, further improving the accuracy of the salt spray sedimentation result; 2. By installing the operation simulation mechanism to heat the component, the present invention makes the component maintain the same temperature as that generated during operation, thereby simulating the temperature environment during the actual operation of the component, fitting the operation environment of the circuit board, and making the test result more accurate; 3. By setting up the water accumulation treatment mechanism, the present invention tilts the circuit board and generates vibrations, thereby promoting the dispersion and detachment of the accumulated water on the test piece from the circuit board, effectively preventing the occurrence of uneven corrosion caused by water accumulation on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 FIG. 1 is a schematic structural diagram of the first perspective of the detection device for the converter of a wind turbine generator based on the present invention.

[0013] Figure 2 FIG. 2 is a schematic structural diagram of the second perspective of the detection device for the converter of a wind turbine generator based on the present invention.

[0014] Figure 3 FIG. 3 is a schematic structural diagram of the internal structure of the test chamber of the detection device for the converter of a wind turbine generator based on the present invention.

[0015] Figure 4 FIG. 4 is a schematic structural diagram of the precise control mechanism for salt spray sedimentation of the detection device for the converter of a wind turbine generator based on the present invention.

[0016] Figure 5 FIG. 5 is a schematic structural diagram of the operation simulation mechanism of the detection device for the converter of a wind turbine generator based on the present invention.

[0017] Figure 6 FIG. 6 is a schematic structural diagram of the water accumulation treatment mechanism of the detection device for the converter of a wind turbine generator based on the present invention.

[0018] In the figure: 1. Salt spray test mechanism; 11. Salt solution tank; 12. Feeding port; 13. Air compressor; 14. Test chamber; 15. Chamber cover; 16. Nozzle; 17. Controller; 18. Heater; 2. Precise salt spray settlement control mechanism; 21. Reciprocating screw one; 22. One-way gear one; 23. Guide rod one; 24. Moving plate one; 25. Collector; 26. Shielding frame; 27. Reciprocating screw three; 28. One-way gear two; 29. Scraper; 210. Guide rod two; 211. Gear; 212. Collection bottle; 213. Motor one; 214. Belt assembly; 215. Diversion groove; 3. Operation simulation mechanism; 31. Support rod; 32. Mounting frame; 33. Limit post; 34. Mounting plate; 35. Heating column; 36. Detection piece; 4. Water accumulation treatment mechanism; 41. Motor two; 42. Reciprocating screw two; 43. Moving plate two; 44. Connecting frame; 45. Poking plate; 46. Fixed frame; 47. Arc tooth. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention.

[0021] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] Embodiment: Refer toFigures 1-6 : Based on the converter detection device of a wind turbine generator, including a salt spray test mechanism 1, it also includes: A salt spray settlement precise control mechanism 2, which is installed inside the salt spray test mechanism 1 and includes a multi-directional settlement collection mechanism and a droplet mis-collection control mechanism; The multi-directional settlement collection mechanism includes a reciprocating screw one 21, an external thread of the reciprocating screw one 21 is sleeved with a moving plate one 24, and a collector 25 is fixed inside the moving plate one 24; The droplet mis-collection control mechanism includes a scraper 29, and a diversion groove 215 is installed on one side of the scraper 29; An operation simulation mechanism 3, which is installed inside the salt spray test mechanism 1 and includes a mounting plate 34, and a plurality of heating columns 35 are fixed on the top of the mounting plate 34; A water accumulation treatment mechanism 4, which is connected to the operation simulation mechanism 3 and the salt spray test mechanism 1, and includes a reciprocating screw two 42 and two arc teeth 47.

[0023] The salt spray test mechanism 1 includes a salt solution tank 11, a feeding port 12 is opened at the top of the salt solution tank 11, and an air compressor 13 is fixed inside the salt solution tank 11; One side of the salt solution tank 11 is fixed with a test chamber 14, the top of the test chamber 14 is rotatably connected with a chamber cover 15, and a heater 18 is installed at the bottom of the test chamber 14; A nozzle 16 is installed inside the test chamber 14, and the nozzle 16 is communicated with the air compressor 13 and the salt solution tank 11; One side of the salt solution tank 11 is fixed with a controller 17, and the controller 17 is electrically connected to the air compressor 13.

[0024] The multi-directional settlement collection mechanism further includes a belt assembly 214 connected to one end of the two reciprocating screws one 21, the two reciprocating screws one 21 are rotatably connected to the test chamber 14, a guide rod one 23 is sleeved inside the moving plate one 24, and the guide rod one 23 is fixed on the inner wall of the test chamber 14; A collection bottle 212 is installed on the outer wall of the test chamber 14, and the collection bottle 212 is communicated with the two collectors 25; One end of one of the reciprocating screws one 21 is fixed with a one-way gear one 22.

[0025] The droplet mis-collection control mechanism further includes a reciprocating screw three 27 threadedly sleeved inside the scraper 29, the reciprocating screw three 27 is rotatably connected inside the chamber cover 15, one end of the reciprocating screw three 27 is installed with a one-way gear two 28, a guide rod two 210 is sleeved inside the scraper 29, and the guide rod two 210 is fixed on the inner wall of the chamber cover 15; Two shielding frames 26 are fixed on one side inner wall of the test chamber 14; On one side of the test chamber 14, a first motor 213 is fixed. The first motor 213 is electrically connected to the controller 17. At the output end of the first motor 213, a gear 211 is fixed. On one side of the gear 211, it meshes with a one-way gear 22, and on the other side, it meshes with a one-way gear 28.

[0026] The operation simulation mechanism 3 further includes a support rod 31 fixed to the inner bottom wall of the test chamber 14. At the top of the support rod 31, a mounting frame 32 is hinged. At the top of the mounting frame 32, a plurality of limit posts 33 are fixed. A mounting plate 34 is fixed to the top of the mounting frame 32. An anti-corrosion coating is provided on the outside of the heating columns 35 and the mounting plate 34. A plurality of heating columns 35 are electrically connected to the controller 17. On the outside of the plurality of limit posts 33, a detection member 36 is fixed. The positions of the plurality of heating columns 35 respectively correspond to the bottom positions of the plurality of elements of the detection member 36.

[0027] The water accumulation treatment mechanism 4 further includes a second motor 41 fixed to the bottom of the test chamber 14. The second motor 41 is electrically connected to the controller 17. At the output end of the second motor 41, the bottom end of a reciprocating screw 42 is fixedly connected. A moving plate 43 is sleeved on the outside of the reciprocating screw 42 in a threaded manner. On one side of the moving plate 43, a connecting frame 44 is rotatably connected. The top of the connecting frame 44 is rotatably connected to the bottom of the mounting frame 32; Two arc-shaped teeth 47 are symmetrically arranged. On one side of the arc-shaped teeth 47, a fixing frame 46 is fixed. The fixing frame 46 is fixed to the inner bottom wall of the test chamber 14. On one side of the arc-shaped teeth 47, a dial 45 is meshed. One side of the dial 45 is fixedly connected to the mounting frame 32.

[0028] Working principle: Through the feeding port 12, a solution is added into the salt solution tank 11. The box cover 15 is covered on the top of the test chamber 14. The one-way gear 28 meshes with the gear 211. The detection program is started through the controller 17; The controller 17 controls the motor-driven pump in the salt solution tank 11 to deliver the solution to the nozzle 16, and then controls the air compressor 13 to atomize the solution entering the nozzle 16. After the salt mist enters the test chamber 14, it diffuses to wrap the detection member 36 and corrodes the detection member 36; Start a plurality of heating columns 35 synchronously. The top of the heating columns 35 generates heat and transmits it to the components through the circuit board. The temperature of each heating column 35 is kept consistent with the temperature generated when the components are operating (it is necessary to obtain the temperature of the components when the circuit board is operating before detection, and then adjust the temperature of the heating columns 35 through the controller 17), so as to simulate the temperature environment when the components are actually operating. This design fits the operating environment of the circuit board and makes the detection results more accurate; The starting motor 1-213 drives the gear 211 to reverse. The reverse rotation of the gear 211 meets the rotation direction of the one-way gear 2-28 to drive the reciprocating screw 3-27 to rotate, so that the scraper 29 drives the diversion groove 215 to move. The scraper 29 scrapes off the condensed water generated on the inner wall of the box cover 15. The condensed water falls on the diversion groove 215 and flows along the diversion groove 215 to both sides of the test chamber 14, preventing the condensed water from accumulating too much and dripping into the interior of the collector 25, and avoiding affecting the accuracy of the salt spray settlement result; The starting motor 1-213 drives the gear 211 to rotate forward. The forward rotation of the gear 211 meets the rotation direction of the one-way gear 1-22 to drive the reciprocating screw 1-21 to rotate. One of the reciprocating screws 1-21 drives the other reciprocating screw 1-21 to rotate through the belt assembly 214. The rotation of the reciprocating screw 1-21 makes the moving plate 1-24 drive the collector 25 to move. The collector 25 moves to collect the salt spray at different positions in the test chamber 14. Since the salt spray settlement amounts at different positions are different, collecting the salt spray at multiple positions can ensure the uniformity of salt spray collection, thereby improving the accuracy of the salt spray settlement result; The timing starting motor 2-41 drives the reciprocating screw 2-42 to rotate, so that the moving plate 2-43 moves up and down. When the moving plate 2-43 moves down, it pulls the connecting frame 44 connected to it to move down. The connecting frame 44 pulls the mounting frame 32 connected to it. The mounting frame 32 tilts to one side with the connection to the support rod 31. When tilting, the dial 45 moves along. When the dial 45 moves, it cooperates with the arc teeth 47 to make the dial 45 vibrate. The dial 45 conducts the vibration to the mounting frame 32, and the mounting frame 32 conducts it to the detection part 36 through the limit post 33. Because there are many components on the detection part 36, when the salt spray settles on the surface of the detection part 36, it will be blocked by the components and the salt water cannot flow freely, so liquid accumulation will occur. Then the local corrosion will be accelerated at this position, resulting in uneven corrosion degree and interfering with the salt spray test data. The accumulated water on the detection part 36 is dispersed and separated from the circuit board by vibration during tilting.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A detection device for a wind turbine converter, comprising a salt spray test mechanism (1), characterized in that, It also includes: A precise salt spray settlement control mechanism (2), which is installed inside the salt spray test mechanism (1) and includes a multi-directional settlement collection mechanism and a droplet mis-collection control mechanism; The multi-directional settlement collection mechanism includes a reciprocating screw one (21), an external thread of the reciprocating screw one (21) is sleeved with a moving plate one (24), and a collector (25) is fixed inside the moving plate one (24); The droplet mis-collection control mechanism includes a scraper (29), and a diversion groove (215) is installed on one side of the scraper (29); An operation simulation mechanism (3), which is installed inside the salt spray test mechanism (1) and includes a mounting plate (34), and a plurality of heating columns (35) are fixed on the top of the mounting plate (34); A water accumulation treatment mechanism (4), which is connected to the operation simulation mechanism (3) and the salt spray test mechanism (1), and includes a reciprocating screw two (42) and two arc teeth (47).

2. The converter detection device based on a wind turbine generator set according to claim 1, wherein The salt spray test mechanism (1) includes a salt solution tank (11), a feeding port (12) is opened at the top of the salt solution tank (11), and an air compressor (13) is fixed inside the salt solution tank (11); One side of the salt solution tank (11) is fixed with a test chamber (14), a lid (15) is rotatably connected to the top of the test chamber (14), and a heater (18) is installed at the bottom of the test chamber (14); A nozzle (16) is installed inside the test chamber (14), and the nozzle (16) is communicated with the air compressor (13) and the salt solution tank (11); One side of the salt solution tank (11) is fixed with a controller (17), and the controller (17) is electrically connected to the air compressor (13).

3. The converter detection device for a wind turbine generator set according to claim 2, wherein The multi-directional settlement collection mechanism further includes a belt assembly (214) connected to one end of the two reciprocating screws one (21), the two reciprocating screws one (21) are rotatably connected to the test chamber (14), a guide rod one (23) is sleeved inside the moving plate one (24), and the guide rod one (23) is fixed on the inner wall of the test chamber (14); A collection bottle (212) is installed on the outer wall of the test chamber (14), and the collection bottle (212) is communicated with the two collectors (25); One end of one of the reciprocating screws one (21) is fixed with a one-way gear one (22).

4. The wind turbine converter detection device according to claim 3, wherein The droplet mis-collection control mechanism further includes a reciprocating screw three (27) threadedly sleeved inside the scraper (29), the reciprocating screw three (27) is rotatably connected inside the lid (15), one end of the reciprocating screw three (27) is installed with a one-way gear two (28), a guide rod two (210) is sleeved inside the scraper (29), and the guide rod two (210) is fixed on the inner wall of the lid (15); Two shielding frames (26) are fixed on one inner wall of the test chamber (14); One side of the test chamber (14) is fixed with a motor one (213), the motor one (213) is electrically connected to the controller (17), an output end of the motor one (213) is fixed with a gear (211), one side of the gear (211) is meshed with the one-way gear one (22), and the other side is meshed with the one-way gear two (28).

5. The converter detection device based on a wind turbine generator set according to claim 4, characterized in that The operating simulation mechanism (3) further includes a support rod (31) fixed to the inner bottom wall of the test chamber (14). The top end of the support rod (31) is hinged with a mounting frame (32). A plurality of limit posts (33) are fixed to the top of the mounting frame (32). The mounting plate (34) is fixed to the top of the mounting frame (32). An anti-corrosion coating is provided on the outer part of the mounting plate (34) and the heating column (35). A plurality of heating columns (35) are electrically connected to the controller (17). A detection member (36) is fixed to the outer part of the plurality of limit posts (33). The positions of the plurality of heating columns (35) respectively correspond to the bottom positions of the plurality of elements of the detection member (36).

6. The converter detection device for a wind turbine generator set according to claim 5, wherein, The water accumulation treatment mechanism (4) further includes a second motor (41) fixed to the bottom of the test chamber (14). The second motor (41) is electrically connected to the controller (17). The output end of the second motor (41) is fixedly connected to the bottom end of a reciprocating screw rod two (42). A moving plate two (43) is sleeved on the outer part of the reciprocating screw rod two (42) in a threaded manner. One side of the moving plate two (43) is rotatably connected to a connecting frame (44). The top of the connecting frame (44) is rotatably connected to the bottom of the mounting frame (32); The two arc-shaped teeth (47) are symmetrically arranged. A fixed frame (46) is fixed to one side of the arc-shaped tooth (47). The fixed frame (46) is fixed to the inner bottom wall of the test chamber (14). A dial plate (45) is meshed with one side of the arc-shaped tooth (47). One side of the dial plate (45) is fixedly connected to the mounting frame (32).

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