Wind turbine generator system converter detection device

Abstract

The application discloses a wind turbine generator set converter detection device, relates to the technical field of converter corrosion detection, and comprises a salt spray test mechanism, further comprises: a salt mist deposition precision control mechanism, which is installed in the salt spray test mechanism and comprises a multidirectional deposition collection mechanism and a liquid drop mis-collection control mechanism; the liquid drop mis-collection control mechanism comprises a scraper, one side of the scraper is provided with a flow guide groove; the application heats the element by installing a running simulation mechanism, so that the temperature of the element is consistent with the temperature generated during running, thereby simulating the temperature environment of the element during actual running, fitting the running environment of the circuit board, and making the detection result more accurate; the application sets a accumulated water treatment mechanism, so that the circuit board is inclined and vibrates, thereby promoting the accumulated water on the detection piece to disperse and separate from the circuit board, and effectively preventing the corrosion uneven phenomenon caused by the accumulated water of the circuit board.

Description

Technical Field

[0001] This invention relates to the field of converter corrosion detection technology, and in particular to a detection device for wind turbine generator converters. Background Technology

[0002] Wind turbine converters are mainly installed at sea or on land along with wind turbines. Due to the special marine environment, corrosion tests are required on wind turbine converters to ensure their service life.

[0003] Circuit board salt spray testing equipment is a key device specifically designed to simulate marine or saline industrial atmospheric environments to test the corrosion resistance of circuit boards (PCBs) and their components (PCBAs). Its main purpose is to evaluate the material tolerance, coating protection effect, corrosion resistance of metal components, and stability of electrical performance of circuit boards under salt spray conditions.

[0004] In the existing technology, it is impossible to run the detection during the corrosion process of the circuit board, which can easily lead to short circuits. However, the temperature generated by the components themselves also has a certain impact on the corrosive gas. Therefore, the existing technology cannot match the actual operating temperature environment of the circuit board, which affects the detection results. Moreover, because the components are densely packed on the circuit board, liquid can easily accumulate after salt spray settles on the surface. Liquid accumulation will lead to excessive corrosion in that area, resulting in uneven corrosion. Summary of the Invention

[0005] This invention proposes a wind turbine generator converter testing device to address the aforementioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] The wind turbine generator converter testing device, including a salt spray test mechanism, also includes:

[0008] The salt spray deposition precision control mechanism is installed inside the salt spray test facility and includes a multi-directional deposition collection mechanism and a droplet miscollection control mechanism.

[0009] The multi-directional sedimentation collection mechanism includes a reciprocating screw, a movable plate is threaded onto the external of the reciprocating screw, and a collector is fixed inside the movable plate.

[0010] The droplet miscollection control mechanism includes a scraper, and a guide groove is installed on one side of the scraper;

[0011] The simulation mechanism is installed inside the salt spray test facility and includes a mounting plate with multiple heating columns fixed to the top of the mounting plate.

[0012] The water treatment mechanism, which is connected to the operation simulation mechanism and the salt spray test mechanism, includes a reciprocating screw and two arc-shaped teeth.

[0013] Furthermore, the salt spray test mechanism includes a salt solution tank, the top of which has a feeding port, and an air compressor is fixed inside the salt solution tank;

[0014] A test chamber is fixed to one side of the salt solution tank, a lid is rotatably connected to the top of the test chamber, and a heater is installed at the bottom of the test chamber.

[0015] The test chamber is equipped with nozzles, which are connected to an air compressor and a brine tank.

[0016] A controller is fixed to one side of the brine tank, and the controller is electrically connected to the air compressor.

[0017] Furthermore, the multi-directional sedimentation collection mechanism also includes a belt assembly connected to one end of two reciprocating screws. The two reciprocating screws are rotatably connected to the test chamber. A guide rod is sleeved inside the moving plate and the guide rod is fixed to the inner wall of the test chamber.

[0018] A collection bottle is installed on the outer wall of the test chamber, and the collection bottle is connected to two collectors.

[0019] One end of one of the reciprocating screws is fixed with a one-way gear.

[0020] Furthermore, the droplet miscollection control mechanism also includes a reciprocating screw three threaded inside the scraper, the reciprocating screw three being rotatably connected to the inside of the box cover, a one-way gear two being installed at one end of the reciprocating screw three, a guide rod two being sleeved inside the scraper, and the guide rod two being fixed to the inner wall of the box cover;

[0021] Two shielding frames are fixed to one inner wall of the test chamber;

[0022] A motor is fixed on one side of the test chamber. The motor is electrically connected to the controller. A gear is fixed at the output end of the motor. One side of the gear meshes with a one-way gear and the other side meshes with a two-way gear.

[0023] Furthermore, the operation simulation mechanism also includes a support rod fixed to the inner wall of the bottom of the test chamber. The top of the support rod is hinged to a mounting frame. Multiple limiting posts are fixed to the top of the mounting frame. The mounting plate is fixed to the top of the mounting frame. The mounting plate and the heating columns are coated with an anti-corrosion coating. The multiple heating columns are electrically connected to the controller. Detection elements are fixed to the outside of the multiple limiting posts. The positions of the multiple heating columns correspond to the bottom positions of multiple components of the detection elements.

[0024] Furthermore, the water treatment mechanism also includes a second motor fixed to the bottom of the test chamber. The second motor is electrically connected to the controller. The output end of the second motor is fixedly connected to the bottom end of the second reciprocating screw. The second reciprocating screw is threaded with a second movable plate. A connecting frame is rotatably connected to one side of the second movable plate. The top of the connecting frame is rotatably connected to the bottom of the mounting frame.

[0025] The two arc-shaped teeth are symmetrically arranged, and a fixing frame is fixed to one side of each arc-shaped tooth. The fixing frame is fixed to the bottom inner wall of the test chamber. A lever is engaged on one side of each arc-shaped tooth, and one side of the lever is fixedly connected to the mounting frame.

[0026] Compared with existing technologies, the beneficial effects of this invention are:

[0027] 1. This invention effectively scrapes away condensate generated on the inner wall of the tank cover by installing a precise salt spray sedimentation control mechanism, preventing excessive condensate from dripping into the collector and thus avoiding affecting the accuracy of the salt spray sedimentation results. In addition, the collector is moved by a moving plate to ensure the uniformity of salt spray collection and further improve the accuracy of the salt spray sedimentation results.

[0028] 2. This invention heats the components by installing and running a simulation mechanism, ensuring that the components maintain the same temperature as when they are running, thereby simulating the actual operating temperature environment of the components and conforming to the operating environment of the circuit board, making the test results more accurate;

[0029] 3. The present invention sets up a water accumulation treatment mechanism to tilt the circuit board and generate vibration, thereby causing the water accumulated on the test piece to disperse and detach from the circuit board, effectively preventing uneven corrosion caused by water accumulation on the circuit board. Attached Figure Description

[0030] Figure 1 This is a first-view structural schematic diagram of the wind turbine generator converter detection device proposed in this invention.

[0031] Figure 2 This is a second-view structural schematic diagram of the wind turbine generator converter detection device proposed in this invention.

[0032] Figure 3 This is a schematic diagram of the internal structure of the test chamber for the wind turbine generator converter testing device proposed in this invention.

[0033] Figure 4 This is a schematic diagram of the precise control mechanism for salt spray deposition based on the wind turbine generator converter detection device proposed in this invention.

[0034] Figure 5 This is a schematic diagram of the operation simulation mechanism based on the wind turbine generator converter detection device proposed in this invention.

[0035] Figure 6 This is a schematic diagram of the water accumulation treatment mechanism based on the wind turbine generator converter detection device proposed in this invention.

[0036] In the diagram: 1. Salt spray test mechanism; 11. Salt solution tank; 12. Feed port; 13. Air compressor; 14. Test chamber; 15. Chamber cover; 16. Nozzle; 17. Controller; 18. Heater; 2. Salt spray sedimentation precision 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 1. Guide rod 2; 211. Gear; 212. Collection bottle; 213. Motor 1; 214. Belt assembly; 215. Flow guide channel; 3. Running simulation mechanism; 31. Support rod; 32. Mounting frame; 33. Limiting post; 34. Mounting plate; 35. Heating column; 36. Detection piece; 4. Water accumulation treatment mechanism; 41. Motor 2; 42. Reciprocating screw 2; 43. Moving plate 2; 44. Connecting frame; 45. Pulley; 46. Fixing frame; 47. Arc-shaped tooth. Detailed Implementation

[0037] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0038] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0040] Example: Refer to Figures 1-6 The wind turbine generator converter testing device includes a salt spray test mechanism 1, and also includes:

[0041] Salt spray deposition precision control mechanism 2 is installed inside salt spray test facility 1, including multi-directional deposition collection mechanism and droplet miscollection control mechanism;

[0042] The multi-directional sedimentation collection mechanism includes a reciprocating screw 21, a movable plate 24 is threaded on the outside of the reciprocating screw 21, and a collector 25 is fixed inside the movable plate 24.

[0043] The droplet miscollection control mechanism includes a scraper 29, and a guide groove 215 is installed on one side of the scraper 29;

[0044] The simulation mechanism 3 is installed inside the salt spray test mechanism 1 and includes a mounting plate 34. Multiple heating columns 35 are fixed on the top of the mounting plate 34.

[0045] The water treatment mechanism 4, which is connected to the operation simulation mechanism 3 and the salt spray test mechanism 1, includes a reciprocating screw 42 and two arc-shaped teeth 47.

[0046] The salt spray test apparatus 1 includes a salt solution tank 11, a feeding port 12 is provided on the top of the salt solution tank 11, and an air compressor 13 is fixed inside the salt solution tank 11;

[0047] A test chamber 14 is fixed to one side of the salt solution tank 11. A cover 15 is rotatably connected to the top of the test chamber 14. A heater 18 is installed at the bottom of the test chamber 14.

[0048] The test chamber 14 is equipped with a nozzle 16, which is connected to the air compressor 13 and the brine tank 11.

[0049] A controller 17 is fixed to one side of the brine tank 11, and the controller 17 is electrically connected to the air compressor 13.

[0050] The multi-directional sedimentation collection mechanism also includes a belt assembly 214 connected to one end of two reciprocating screws 21. The two reciprocating screws 21 are rotatably connected to the test chamber 14. A guide rod 23 is sleeved inside the moving plate 24 and the guide rod 23 is fixed to the inner wall of the test chamber 14.

[0051] A collection bottle 212 is installed on the outer wall of the test chamber 14, and the collection bottle 212 is connected to two collectors 25;

[0052] One end of one of the reciprocating screws 21 is fixed with a one-way gear 22.

[0053] The droplet miscollection control mechanism also includes a reciprocating screw 27 threaded inside the scraper 29, which is rotatably connected to the inside of the cover 15. One end of the reciprocating screw 27 is equipped with a one-way gear 28, and a guide rod 210 is fitted inside the scraper 29 and fixed to the inner wall of the cover 15.

[0054] Two shielding brackets 26 are fixed to one inner wall of the test chamber 14;

[0055] A motor 213 is fixed on one side of the test chamber 14. The motor 213 is electrically connected to the controller 17. A gear 211 is fixed at the output end of the motor 213. One side of the gear 211 meshes with a one-way gear 22, and the other side meshes with a one-way gear 28.

[0056] The simulation mechanism 3 also includes a support rod 31 fixed to the inner wall of the bottom of the test chamber 14. The top of the support rod 31 is hinged to a mounting frame 32. Multiple limiting posts 33 are fixed to the top of the mounting frame 32. A mounting plate 34 is fixed to the top of the mounting frame 32. The mounting plate 34 and the heating column 35 are coated with an anti-corrosion coating. The multiple heating columns 35 are electrically connected to the controller 17. Detection elements 36 are fixed to the outside of the multiple limiting posts 33. The positions of the multiple heating columns 35 correspond to the bottom positions of multiple elements of the detection elements 36.

[0057] The water treatment mechanism 4 also 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 the second reciprocating screw 42. The external thread of the second reciprocating screw 42 is fitted with a second movable plate 43. A connecting frame 44 is rotatably connected to one side of the second movable plate 43. The top of the connecting frame 44 is rotatably connected to the bottom of the mounting frame 32.

[0058] Two arc-shaped teeth 47 are symmetrically arranged. A fixing frame 46 is fixed to one side of the arc-shaped teeth 47. The fixing frame 46 is fixed to the bottom inner wall of the test chamber 14. A lever 45 is engaged on one side of the arc-shaped teeth 47. One side of the lever 45 is fixedly connected to the mounting frame 32.

[0059] Working principle:

[0060] Solution is added into salt tank 11 through feed port 12, and the lid 15 is placed on top of test chamber 14. One-way gear 28 meshes with gear 211, and the test program is started through controller 17.

[0061] The controller 17 controls the motor-driven pump in the salt 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 and envelops the test piece 36, corroding the test piece 36.

[0062] Multiple heating columns 35 are activated simultaneously. The top of the heating column 35 generates temperature, which is then transferred to the component through the circuit board. The temperature of each heating column 35 is consistent with the temperature generated by the component during operation (the temperature of the component during circuit board operation needs to be obtained before testing, and then the temperature of the heating column 35 is adjusted by the controller 17). This simulates the actual operating temperature environment of the component. This design fits the operating environment of the circuit board, making the test results more accurate.

[0063] The starting motor 213 drives the gear 211 to rotate in reverse. The rotation of gear 211 satisfies the rotation direction of the one-way gear 28 driving the reciprocating screw 27, causing the scraper 29 to move the guide groove 215. The scraper 29 scrapes off the condensate generated on the inner wall of the box cover 15. The condensate falls into the guide groove 215 and flows along the guide groove 215 to both sides of the test chamber 14, avoiding the accumulation of too much condensate and dripping into the inside of the collector 25, thus avoiding affecting the accuracy of the salt spray deposition results.

[0064] The starting motor 213 drives the gear 211 to rotate forward. The forward rotation of the gear 211 satisfies the direction of rotation of the one-way gear 22 driving the reciprocating screw 21. One of the reciprocating screws 21 drives the other reciprocating screw 21 to rotate through the belt assembly 214. The rotation of the reciprocating screw 21 causes the moving plate 24 to move the collector 25. The collector 25 moves to collect salt spray at different positions in the test chamber 14. Since the amount of salt spray deposition varies at different positions, collecting salt spray at multiple positions can ensure the uniformity of salt spray collection, thereby improving the accuracy of salt spray deposition results.

[0065] The timed start motor 41 drives the reciprocating screw 42 to rotate, causing the moving plate 43 to move up and down. When the moving plate 43 moves down, it pulls the connecting frame 44, which is rotatably connected to it, to move down. The connecting frame 44 pulls the mounting frame 32, which is rotatably connected to it. The mounting frame 32 tilts to one side due to its connection with the support rod 31. When tilting, the dial plate 45 moves accordingly. When the dial plate 45 moves, it cooperates with the arc-shaped tooth 47 to make the dial plate 45 vibrate. The dial plate 45 transmits the vibration to the mounting frame 32. The mounting frame 32 transmits the vibration to the test piece 36 through the limiting post 33. Because there are many components on the test piece 36, the salt spray will be blocked by the components after it settles on the surface of the test piece 36. The salt water cannot flow freely, so it will cause liquid accumulation. This will accelerate local corrosion at this location, resulting in uneven corrosion and interfering with the salt spray test data. The vibration when tilting causes the water accumulated on the test piece 36 to be dispersed away from the circuit board.

[0066] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A wind turbine generator converter testing device, including a salt spray test mechanism (1), characterized in that, Also includes: Salt spray deposition precision control mechanism (2), which is installed in salt spray test mechanism (1), includes multi-directional deposition collection mechanism and droplet miscollection control mechanism; The multi-directional sedimentation collection mechanism includes a reciprocating screw (21), on which a movable plate (24) is threadedly fitted on the external thread of the reciprocating screw (21), and a collector (25) is fixed inside the movable plate (24). The droplet miscollection control mechanism includes a scraper (29), and a guide groove (215) is installed on one side of the scraper (29). The simulation mechanism (3) is installed inside the salt spray test mechanism (1) and includes a mounting plate (34) with multiple heating columns (35) fixed on the top of the mounting plate (34). The water treatment mechanism (4), which is connected to the operation simulation mechanism (3) and the salt spray test mechanism (1), includes a reciprocating screw (42) and two arc-shaped teeth (47). The operation simulation mechanism (3) also includes a support rod (31) fixed to the inner wall of the bottom of the test chamber (14). The top of the support rod (31) is hinged to a mounting frame (32). The top of the mounting frame (32) is fixed with multiple limiting posts (33). The mounting plate (34) is fixed to the top of the mounting frame (32). The mounting plate (34) and the heating column (35) are provided with an anti-corrosion coating. The multiple heating columns (35) are electrically connected to the controller (17). The multiple limiting posts (33) are fixed with detection elements (36). The positions of the multiple heating columns (35) correspond to the bottom positions of multiple components of the detection elements (36). Multiple heating columns (35) are started simultaneously. The top of the heating column (35) generates temperature and transmits it to the component through the circuit board. The temperature of each heating column (35) is consistent with the temperature generated when the component is running, thereby simulating the actual operating temperature environment of the component and conforming to the operating environment of the circuit board.

2. The wind turbine generator converter testing device according to claim 1, characterized in that, The salt spray test mechanism (1) includes a salt solution tank (11), the top of which is provided with a feeding port (12), and an air compressor (13) is fixed inside the salt solution tank (11). A test chamber (14) is fixed to one side of the salt solution tank (11), 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). The test chamber (14) is equipped with a nozzle (16) which is connected to an air compressor (13) and a salt solution tank (11); A controller (17) is fixed to one side of the brine tank (11), and the controller (17) is electrically connected to the air compressor (13).

3. The wind turbine generator converter testing device according to claim 2, characterized in that, The multi-directional sedimentation collection mechanism also includes a belt assembly (214) connected to one end of two reciprocating screws (21). The two reciprocating screws (21) are rotatably connected to the test chamber (14). A guide rod (23) is sleeved inside the moving plate (24). The guide rod (23) is fixed to the inner wall of the test chamber (14). The outer wall of the test chamber (14) is equipped with a collection bottle (212), which is connected to two collectors (25); One end of one of the reciprocating screws (21) is fixed with a one-way gear (22).

4. The wind turbine generator converter testing device according to claim 3, characterized in that, The droplet miscollection control mechanism also includes a reciprocating screw three (27) threaded inside the scraper (29), the reciprocating screw three (27) being rotatably connected to the inside of the box cover (15), one end of the reciprocating screw three (27) being equipped with a one-way gear two (28), and a guide rod two (210) being sleeved inside the scraper (29), the guide rod two (210) being fixed to the inner wall of the box cover (15); Two shielding frames (26) are fixed to one inner wall of the test chamber (14). One side of the test chamber (14) is fixed with a motor (213), which is electrically connected to the controller (17). A gear (211) is fixed at the output end of the motor (213). One side of the gear (211) meshes with a one-way gear (22), and the other side meshes with a one-way gear (28).

5. The wind turbine generator converter testing device according to claim 4, characterized in that, The water treatment mechanism (4) also includes a second motor (41) fixed at 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 the second reciprocating screw (42). The second reciprocating screw (42) is threaded with a second movable plate (43). A connecting frame (44) is rotatably connected to one side of the second movable plate (43). 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. A fixing frame (46) is fixed on one side of the arc-shaped teeth (47). The fixing frame (46) is fixed to the bottom inner wall of the test chamber (14). A lever (45) is engaged on one side of the arc-shaped teeth (47). One side of the lever (45) is fixedly connected to the mounting frame (32).

Images