Automatic temperature control device for wind power generation blade

Abstract

The invention discloses an automatic temperature control device for wind power generation blades, and relates to the technical field of wind power generators. Two heat preservation covers are connected between two opposite circulating covers, vacuum cavities are formed in the heat preservation covers, and the two ends of each heat preservation cover are connected with the adjacent circulating covers through communicating boxes; an electric heating pipe and an axial flow fan are installed in the communicating box at one ends of every two adjacent heat preservation covers, the top of the circulation cover on one side is connected to one end of a ventilation valve, and a U-shaped air bag is connected to one side of the bottom of each heat preservation cover. And when the temperature reaches the blade curing temperature, the electric heating pipe stops heating, the axial flow fan continues to work, the temperature in the heat preservation cover is kept uniform, and compared with an existing device, the device can evenly heat the blade in a partitioning mode, so that the blade forming quality is better.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbines, and particularly to an automatic temperature control device for wind power generation blades. Background Art

[0002] At present, the production of wind power generation blades mainly uses fiberglass materials. The fiberglass resin is a chemical reaction mixture of two-component AB glue. The optimal initial temperatures for the chemical reactions of different component glues are different. The fiberglass curing must reach a fixed temperature range. If the temperature is too low, the curing time and maturity are not good, and the product is hard and brittle, affecting the output and quality of the finished product. At the same time, the fiberglass curing reaction is an exothermic reaction, and the heat generated by itself will cause a large amount of heat to accumulate in the product. When the temperature is too high, sintering will occur. Whether the temperature is too high or too low will affect the quality of the finished product.

[0003] In the Chinese patent with the application number CN202022976813.8 and the name "Wind Turbine Blade Heating Device", the patent heats the air blown out by the blowing component through the heating component in the air duct. The heated air blows towards the inner cavity of the blade, and then the cooled air in the inner cavity is absorbed by the air suction component to form a cycle, which is beneficial to accelerating the air drying and curing of the colloid; When heating the blade, this patent can only heat one end of the blade after the blade is closed. Without a heat preservation cover, heat is easily lost, the temperature control is uneven, and the quality of the finished product is low. When the heat generated by the blade curing reaction accumulates and the temperature is too high, there is no cooling device, and the temperature cannot be effectively reduced in time. When the temperature is too high, sintering occurs, the quality is unstable, and scrap products are easily formed. Summary of the Invention

[0004] The present invention provides an automatic temperature control device for wind power generation blades, which can effectively solve the problems in the above background art that when heating the blade, this patent can only heat one end of the blade after the blade is closed. Without a heat preservation cover, heat is easily lost, the temperature control is uneven, and the quality of the finished product is low. When the heat generated by the blade curing reaction accumulates and the temperature is too high, there is no cooling device, and the temperature cannot be effectively reduced in time. When the temperature is too high, sintering occurs, the quality is unstable, and scrap products are easily formed.

[0005] To achieve the above object, the present invention provides the following technical solution: An automatic temperature control device for wind power generation blades, including a mold base, and a temperature control forming component is arranged on the top of the mold base. The temperature control forming component includes a circulation cover; A number of circulation covers are installed on both sides of the top of the mold base. Two heat preservation covers are connected between two opposite circulation covers. A vacuum cavity is opened inside the heat preservation cover. Both ends of the heat preservation cover are connected to the adjacent circulation cover through a communication box. An electric heating pipe and an axial flow fan are respectively installed inside the communication box at one end of two adjacent heat preservation covers. One end of the communication box at one side of the circulation cover is connected to one end of a ventilation valve; One side of the bottom of the heat preservation cover is connected with a U-shaped airbag. In the middle of the tops of two adjacent heat preservation covers, an air delivery box is installed. Two air distribution pipes are connected to both sides of the air delivery box. Two air injection holes are formed in the bottom of the heat preservation cover and at the top of the U-shaped airbag. The top ends of the air distribution pipes penetrate through the adjacent heat preservation covers and are connected to the adjacent air injection holes.

[0006] According to the above technical solution, a plurality of sliding pipes are equidistantly arranged at the top of one side of the heat preservation cover. A sliding rod is slidably connected inside the sliding pipe. The bottom end of the sliding rod penetrates through the heat preservation cover and is connected with a fitting block. The bottom of the fitting block is connected with the inner bottom of the adjacent U-shaped airbag. The sliding rod and the fitting block are connected through a spherical joint. A connecting bottom ear is welded to the top of the sliding pipe, and a connecting top ear is welded to the top end of the sliding rod. A return spring is connected between the adjacent connecting bottom ear and the connecting top ear.

[0007] According to the above technical solution, a turning shaft is rotatably installed on one side of the mold base. A turning motor is installed at one end of the turning shaft. The output end of the turning motor is connected to one end of the turning shaft. The top of the turning shaft is connected with an assembly plate. A plurality of assembly heads are equidistantly installed on the top of the assembly plate. The assembly head and the top of the adjacent circulation cover are connected through a connecting plate and a fixing bolt.

[0008] According to the above technical solution, an air delivery main pipe is installed on one side of the top of the assembly plate. An air delivery pump is installed at the other end of the turning shaft. An air delivery hose is connected between the air outlet end of the air delivery pump and one end of the air delivery main pipe. A plurality of air delivery branch pipes are equidistantly connected to one side of the air delivery main pipe. The top end of the air delivery branch pipe is connected to one end of an air delivery three-way pipe. The other two ends of the air delivery three-way pipe are respectively connected to one end of the air delivery box and one end of a cooling pipe through an air distribution valve.

[0009] According to the above technical solution, the other end of the cooling pipe is connected to one end of a communicating pipe. The other end of the air change valve is connected to the bottom of the communicating pipe. An electric heating wire is installed inside the air delivery box. An exhaust valve is connected to the middle of the top of the air delivery box.

[0010] According to the above technical solution, blades are placed on the top of the mold base and at the bottom of the heat preservation cover. An assembly hole channel is formed inside the mold base. A plurality of temperature sensors are equidistantly installed at the top of the assembly hole channel.

[0011] According to the above technical solution, a quality improvement component is arranged inside the assembly hole channel. The quality improvement component includes a heating air box; The heating air boxes are installed at the top of the assembly hole channel and on both sides of the temperature sensors. Both ends of the heating air box are connected with a shunt pipe. A hot air blower is installed at one end of the mold base. The air delivery end of the hot air blower is connected to one side of one shunt pipe. The other shunt pipe is connected with an exhaust heat hose on one side; On the other side of the mold base, a heat preservation cylinder is installed. Inside the heat preservation cylinder, a heat return pipe is installed. One end of the heat return pipe is connected to one end of a conversion three-way pipe through a heat control valve. The other two ends of the conversion three-way pipe are respectively connected to one end of a heat discharge hose and one end of a cold control valve. A number of recovery pipes are evenly connected to the top of the heat preservation cylinder; The air inlet end of the hot air blower is connected to one end of an air inlet three-way pipe. The other two ends of the air inlet three-way pipe are respectively connected to one end of a cold inlet valve and one end of a heat return valve. A heat return hose is connected between the other end of the heat return valve and the other end of the heat return pipe.

[0012] According to the above technical solution, a number of heating fins are installed inside the heating gas box. A number of heat conduction fins are evenly welded on the outer and inner sides of the heat return pipe. One end of the top of the heat preservation cylinder is connected with a safety valve. A one-way valve is embedded inside the recovery pipe.

[0013] According to the above technical solution, the top end of the recovery pipe is connected with a docking male ring. A telescopic inner pipe is slidably connected inside the other end of the communication pipe. The top end of the telescopic inner pipe is connected with a docking female ring. Docking springs are connected between both sides of the docking female ring and both outer sides of the communication pipe; Sliding blocks are installed at both ends of the bottom of the heat preservation cylinder. A sliding rail is installed at the bottom of the heat preservation cylinder and at the bottom of the sliding blocks. The sliding blocks are embedded inside the adjacent sliding rails. A docking cylinder is installed on one side of the sliding rail. The output end of the docking cylinder is connected with one end of the adjacent sliding block.

[0014] According to the above technical solution, the input ends of the electric heating pipe, axial flow fan, air change valve, flipping motor, air delivery pump, air distribution valve, electric heating wire, exhaust valve, temperature sensor, hot air blower, cold control valve, heat control valve, heat return valve and cold inlet valve are electrically connected to the output end of an external power supply through a controller.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. A temperature control forming component is provided. During curing, under the guidance of the axial flow fan, the electric heating pipe heats the flowing air. The hot air flows inside the adjacent two heat preservation covers and the opposite two circulation covers to form a circulation air duct, and uniformly heats the blades. When the temperature reaches the curing temperature of the blades, the electric heating pipe stops heating, and the axial flow fan continues to work to keep the temperature inside the heat preservation cover uniform. Compared with the existing device, this device can uniformly heat the blades in a segmented manner, making the quality of the formed blades better; After the surface of the blade is hardened, the air transported by the air delivery pump flows through the air delivery hose, the main air delivery pipe, the branch air delivery pipe, and the air delivery three-way pipe into the interior of the air delivery box. The heating wire heats the flowing air. The air inside the air delivery box flows through the branch air pipe and the air delivery holes into the interior of the U-shaped airbag. The air pressure inside the U-shaped airbag increases, and the U-shaped airbag expands and enlarges. Under the limiting and guiding action of the sliding rod, the fitting block drives the U-shaped airbag to fit the top of the blade, enabling the bottom of the U-shaped airbag to adaptively fit according to the curvature of the top of the blade, with a wide range of applications. Under the sealing action of the U-shaped airbag, the hot air flows more evenly and stably, improving the product quality. Moreover, the hot air inside the U-shaped airbag can play a heat preservation role, and with the heat preservation of the heat preservation cover, the temperature inside the heat preservation cover is more stable, further improving the blade forming quality; When heat accumulates due to the curing reaction of the fiberglass, the air delivery pump transports cold air into the interior of the cooling pipe. The external cold air quickly flows through the interior of the cooling pipe and the connecting pipe. Under the action of the pressure difference, the hot air inside the circulation cover is quickly discharged through the air exchange valve, realizing rapid cooling of the blade, avoiding the sintering phenomenon when the temperature is too high, and further ensuring the product forming quality; After the blade processing is completed, the flipping motor drives the circulation cover and the heat preservation cover to flip. The heat preservation cover disengages from the top of the blade, facilitating the loading and unloading of the blade, which is convenient and fast. Moreover, the circulation cover is connected by bolts and the connecting plate, and the disassembly and installation are convenient, facilitating daily maintenance.

[0016] 2. A quality improvement component is provided. The hot air blower transports hot air into the interior of the heating air box. The hot air quickly heats the heating air box. Under the action of heat conduction, the mold base heats the bottom of the blade, cooperating with the quality improvement component to heat the top of the blade, shortening the heating time and increasing the production speed of the blade; Moreover, after the hot air heats the heating air box, the exhausted hot air flows through the exhaust heat hose into the interior of the heat recovery pipe, and then flows through the heat recovery hose and the heat recovery valve into the intake end of the hot air blower, recovering the hot air after heating the heating air box, reducing the heating burden of the hot air blower, reducing the power consumption, realizing heat energy recovery, and the device has good environmental protection. And when cooling the blade, the hot air discharged through the connecting pipe enters the interior of the heat preservation cylinder to heat the air inside the heat recovery pipe. When processing the next blade, it can preheat the intake of the hot air blower, reducing the heating power and time of the hot air blower, and the device operates more environmentally friendly; When cooling the blade, the heating system of the hot air blower is turned off, and only the blowing function is started. The cold air enters the interior of the heating air box through the cold air inlet valve. Under the action of heat conduction, it cools the heating air box and the mold base. The hot air is discharged through the cold air control valve, realizing uniform cooling of the blade, accelerating the cooling speed of the blade, and further increasing the production speed of the blade.

[0017] In summary, by cooperating with the heating air box in the quality improvement component to heat the bottom of the blade and the temperature control forming component to heat the bottom of the blade, the two components cooperate with each other, which not only improves the curing speed of the blade, but also heats the upper and lower parts of the blade simultaneously, making the temperature more uniform and further improving the product forming quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, but do not constitute a limitation to the present invention.

[0019] In the drawings: Figure 1 is a three-dimensional structure schematic diagram of the present invention; Figure 2 is a structure schematic diagram of the temperature control forming component of the present invention; Figure 3 is a mounting structure schematic diagram of the connecting plate of the present invention; Figure 4 is a mounting structure schematic diagram of the heat insulation cover of the present invention; Figure 5 is a mounting structure schematic diagram of the axial flow fan of the present invention; Figure 6 is from the present invention Figure 5 enlarged view of area A; Figure 7 is a mounting structure schematic diagram of the U-shaped airbag of the present invention; Figure 8 is from the present invention Figure 7 enlarged view of area B; Figure 9 is a mounting structure schematic diagram of the air delivery box of the present invention; Figure 10 is a structure schematic diagram of the quality improvement component of the present invention; Figure 11 is a mounting structure schematic diagram of the heating air box of the present invention; Figure 12 is a mounting structure schematic diagram of the recovery pipe of the present invention; Figure 13 is a mounting structure schematic diagram of the heat return pipe of the present invention; Reference numerals in the drawings: 1, mold base; 2, blade; 3. Temperature control forming assembly; 301. Circulation cover; 302. Heat preservation cover; 303. Connecting box; 304. Electric heating pipe; 305. Axial flow fan; 306. Ventilation valve; 307. Vacuum chamber; 308. U-shaped airbag; 309. Slide pipe; 310. Connecting bottom ear; 311. Slide bar; 312. Connecting top ear; 313. Return spring; 314. Ball joint; 315. Fitting block; 316. Air delivery box; 317. Branch air pipe; 318. Air delivery hole; 319. Rotating shaft; 320. Rotating motor; 321. Assembly plate; 322. Assembly head; 323. Connecting plate; 324. Air delivery main pipe; 325. Air delivery pump; 326. Air delivery hose; 327. Air delivery branch pipe; 328. Air delivery tee; 329. Air distribution valve; 330. Cooling pipe; 331. Connecting pipe; 332. Electric heating wire; 333. Exhaust valve; 334. Assembly hole; 335. Temperature sensor; 4. Quality improvement assembly; 401. Heating gas box; 402. Heating fins; 403. Shunt pipe; 404. Hot air blower; 405. Heat exhaust hose; 406. Conversion tee; 407. Cooling control valve; 408. Heating control valve; 409. Heat preservation cylinder; 410. Return heat pipe; 411. Heat conducting fins; 412. Recovery pipe; 413. Docking male ring; 414. Sliding block; 415. Sliding rail; 416. Docking cylinder; 417. Return heat hose; 418. Intake air tee; 419. Return heat valve; 420. Cold air intake valve; 421. Telescopic inner pipe; 422. Docking female ring; 423. Docking spring; 424. Safety valve. Specific implementation mode

[0020] The following is a description of the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustrating and explaining the present invention, and are not intended to limit the present invention.

[0021] Embodiment: As Figure 1-13 shown, the present invention provides a technical solution for an automatic temperature control device for wind power generation blades, including a mold base 1. A temperature control forming assembly 3 is arranged on the top of the mold base 1. The temperature control forming assembly 3 includes a circulation cover 301, a heat preservation cover 302, a connecting box 303, an electric heating pipe 304, an axial flow fan 305, a ventilation valve 306, a vacuum chamber 307, a U-shaped airbag 308, a slide pipe 309, a connecting bottom ear 310, a slide bar 311, a connecting top ear 312, a return spring 313, a ball joint 314, a fitting block 315, an air delivery box 316, a branch air pipe 317, an air delivery hole 318, a rotating shaft 319, a rotating motor 320, an assembly plate 321, an assembly head 322, a connecting plate 323, an air delivery main pipe 324, an air delivery pump 325, an air delivery hose 326, an air delivery branch pipe 327, an air delivery tee 328, an air distribution valve 329, a cooling pipe 330, a connecting pipe 331, an electric heating wire 332, an exhaust valve 333, an assembly hole 334 and a temperature sensor 335; On both sides of the top of the mold base 1, a number of circulation covers 301 are installed. Two heat insulation covers 302 are connected between two opposite circulation covers 301. A vacuum cavity 307 is provided inside the heat insulation cover 302. Both ends of the heat insulation cover 302 are connected to the adjacent circulation cover 301 through a communication box 303. An electric heating tube 304 and an axial flow fan 305 are respectively installed inside the communication box 303 at one end of two adjacent heat insulation covers 302. One end of the circulation cover 301 on one side is connected to one end of the air change valve 306. A blade 2 is placed on the top of the mold base 1 and at the bottom of the heat insulation cover 302. An assembly hole 334 is provided inside the mold base 1. A number of temperature sensors 335 are installed at equal intervals at the top of the assembly hole 334. The temperature sensors 335 can monitor the real-time temperature of the blade 2. The temperature sensors 335 feed the temperature data back to the controller, and the controller controls each electrical component to facilitate the real-time control of the temperature of the blade 2; One side of the bottom of the heat preservation cover 302 is connected with a U-shaped airbag 308. An air delivery box 316 is installed in the middle of the tops of two adjacent heat preservation covers 302. Two air distribution pipes 317 are connected to both sides of the air delivery box 316. Two air injection holes 318 are formed in the bottom of the heat preservation cover 302 and at the top of the U-shaped airbag 308. The top ends of the air distribution pipes 317 penetrate through the adjacent heat preservation cover 302 and are connected with the adjacent air injection holes 318. A plurality of sliding pipes 309 are arranged at equal intervals on the top of one side of the heat preservation cover 302. A sliding rod 311 is slidably connected inside the sliding pipe 309. The bottom end of the sliding rod 311 penetrates through the heat preservation cover 302 and is connected with a fitting block 315. The bottom of the fitting block 315 is connected with the inner bottom of the adjacent U-shaped airbag 308. The sliding rod 311 and the fitting block 315 are connected by a spherical joint 314. The spherical joint 314 enables the fitting block 315 to rotate. When the fitting block 315 drives the U-shaped airbag 308 to contact the blade 2, the fitting block 315 can be adaptively adjusted according to the radian of the blade 2. A connecting bottom ear 310 is welded to the top of the sliding pipe 309. A connecting top ear 312 is welded to the top end of the sliding rod 311. A return spring 313 is connected between the connecting bottom ear 310 and the adjacent connecting top ear 312. The air inside the air delivery box 316 can flow through the air distribution pipes 317 and the air injection holes 318 and enter the U-shaped airbag 308. The U-shaped airbag 308 is made of a wrinkled heat-conducting silica gel sheet. The heat-conducting silica gel sheet is airtight and can seal the hot air in the U-shaped airbag 308. Moreover, the heat-conducting silica gel sheet has good heat conduction effect. When the heat-conducting silica gel sheet contacts the blade 2, it can heat the blade 2 to avoid generating a heating blind area. After the air enters the U-shaped airbag 308, the air pressure inside the U-shaped airbag 308 increases. Under the limiting and guiding action of the sliding rod 311, the sliding rod 311 slides downward and the return spring 313 is compressed. The U-shaped airbag 308 expands and increases. When the fitting block 315 drives the U-shaped airbag 308 to fit the top of the blade 2, the sliding rod 311 stops sliding. The bottom of the U-shaped airbag 308 can be adaptively fitted according to the radian of the top of the blade 2. Under the sealing action of the U-shaped airbag 308, when the hot air flows through the circulation air duct formed between two adjacent heat preservation covers 302, the hot air flows more evenly and stably; On one side of the top of the assembly plate 321, the main gas transmission pipe 324 is installed. At the other end of the rotation shaft 319, the gas transmission pump 325 is installed. A gas transmission hose 326 is connected between the gas outlet end of the gas transmission pump 325 and one end of the main gas transmission pipe 324. At equal intervals on one side of the main gas transmission pipe 324, the gas transmission branch pipes 327 are connected. The top end of the gas transmission branch pipe 327 is connected to one end of the gas transmission three-way pipe 328. The other two ends of the gas transmission three-way pipe 328 are respectively connected to one end of the gas transmission box 316 and one end of the cooling pipe 330 through the gas distribution valves 329. The air output by the gas transmission pump 325 can flow through the gas transmission hose 326, the main gas transmission pipe 324, the gas transmission branch pipes 327, and the gas transmission three-way pipe 328 into the gas transmission box 316 and the cooling pipe 330. By controlling the gas distribution valve 329, the air flow direction can be controlled. The other end of the cooling pipe 330 is connected to one end of the connecting pipe 331. The other end of the ventilation valve 306 is connected to the bottom of the connecting pipe 331. When the ventilation valve 306 is opened, the gas distribution valve 329 connected to the cooling pipe 330 is also opened. The external cold air quickly flows through the cooling pipe 330 and the connecting pipe 331. The rapid flow of the air inside the connecting pipe 331 makes the pressure inside the connecting pipe 331 less than the pressure inside the circulation cover 301. According to Bernoulli's principle, the hot air inside the circulation cover 301 can be quickly discharged, so as to quickly cool the blade 2; Inside the gas transmission box 316, the heating wire 332 is installed. The heating wire 332 can heat the air flowing into the U-shaped airbag 308. When the hot air inside the U-shaped airbag 308 forms an insulation layer, the insulation effect is better. In the middle of the top of the gas transmission box 316, the exhaust valve 333 is connected. When the curing of the blade 2 is completed, the exhaust valve 333 is opened, and the air inside the U-shaped airbag 308 is discharged from the exhaust valve 333. The U-shaped airbag 308 shrinks, and the return spring 313 rebounds, and the U-shaped airbag 308 can return to its original state; On one side of the mold base 1, the rotation shaft 319 is rotatably installed. At one end of the rotation shaft 319, the rotation motor 320 is installed. The output end of the rotation motor 320 is connected to one end of the rotation shaft 319. At the top of the rotation shaft 319, the assembly plate 321 is connected. At equal intervals on the top of the assembly plate 321, a number of assembly heads 322 are installed. The assembly heads 322 are connected to the top of the adjacent circulation cover 301 through the connecting plate 323 and the fixing bolts. The rotation motor 320 drives the rotation shaft 319 to rotate, which can realize the flipping of the circulation cover 301 and the heat preservation cover 302, facilitating the loading and unloading of the blade 2; Inside the assembly duct 334, there is a quality improvement component 4, which includes a heating air box 401, heating fins 402, a shunt pipe 403, a hot air blower 404, a heat exhaust hose 405, a conversion three-way pipe 406, a cooling control valve 407, a heating control valve 408, a heat preservation cylinder 409, a heat return pipe 410, heat conducting fins 411, a recovery pipe 412, a docking male ring 413, a sliding block 414, a sliding rail 415, a docking cylinder 416, a heat return hose 417, an intake three-way pipe 418, a heat return valve 419, a cold intake valve 420, a telescopic inner pipe 421, a docking female ring 422, a docking spring 423, and a safety valve 424; At the top of the assembly duct 334 and on both sides of the temperature sensor 335, there is a heating air box 401 installed. Inside the heating air box 401, there are several heating fins 402 installed. The heating fins 402 increase the heat conduction area, enabling the heating air box 401 to quickly heat up and cool down. Both ends of the heating air box 401 are connected to a shunt pipe 403. One end of the mold base 1 is installed with a hot air blower 404. The air output end of the hot air blower 404 is connected to one side of a shunt pipe 403, and the other side of the other shunt pipe 403 is connected to a heat exhaust hose 405; On the other side of the mold base 1, there is a heat preservation cylinder 409 installed. Inside the heat preservation cylinder 409, there is a heat return pipe 410 installed. One end of the heat return pipe 410 is connected to one end of the conversion three-way pipe 406 through a heating control valve 408. The other two ends of the conversion three-way pipe 406 are respectively connected to one end of the heat exhaust hose 405 and one end of the cooling control valve 407. At equal intervals on the top of the heat preservation cylinder 409, there are several recovery pipes 412 connected. Inside the recovery pipes 412, there are check valves embedded. Air can only flow through the recovery pipes 412 into the inside of the heat preservation cylinder 409, and the air inside the heat preservation cylinder 409 cannot flow out through the recovery pipes 412. The top ends of the recovery pipes 412 are connected to a docking male ring 413. Inside the other end of the connecting pipe 331, there is a telescopic inner pipe 421 slidingly connected. The top end of the telescopic inner pipe 421 is connected to a docking female ring 422. Between both sides of the docking female ring 422 and both external sides of the connecting pipe 331, there is a docking spring 423 connected. At both ends of the bottom of the heat preservation cylinder 409, there are sliding blocks 414 installed. At the bottom of the heat preservation cylinder 409 and at the bottom of the sliding blocks 414, there are sliding rails 415 installed. The sliding blocks 414 are embedded inside the adjacent sliding rails 415. On one side of the sliding rails 415, there is a docking cylinder 416 installed. The output end of the docking cylinder 416 is connected to one end of the adjacent sliding block 414. The docking cylinder 416 can drive the sliding block 414 to move along the sliding rail 415, enabling the docking male ring 413 to dock with the docking female ring 422. When docking, the docking male ring 413 can squeeze the docking female ring 422. Under the elastic force of the docking spring 423, the docking male ring 413 and the docking female ring 422 can be closely attached, and the docking airtightness is better; A number of heat conducting fins 411 are evenly welded on the outer and inner sides of the heat recovery pipe 410. The heat conducting fins 411 increase the heat conduction area. When hot air enters the inside of the heat preservation cylinder 409, it can quickly heat the heat recovery pipe 410. One end of the top of the heat preservation cylinder 409 is connected with a safety valve 424. When the air pressure in the cavity between the heat preservation cylinder 409 and the heat recovery pipe 410 is relatively high, the safety valve 424 can discharge the air in the cavity between the heat preservation cylinder 409 and the heat recovery pipe 410 to avoid excessive air pressure. The air inlet end of the hot air blower 404 is connected to one end of the intake three-way pipe 418. The other two ends of the intake three-way pipe 418 are respectively connected to one end of the cold inlet valve 420 and one end of the heat recovery valve 419. A heat recovery hose 417 is connected between the other end of the heat recovery valve 419 and the other end of the heat recovery pipe 410. The input ends of the electric heating tube 304, the axial flow fan 305, the air change valve 306, the flipping motor 320, the air delivery pump 325, the air distribution valve 329, the electric heating wire 332, the exhaust valve 333, the temperature sensor 335, the hot air blower 404, the cold control valve 407, the heat control valve 408, the heat recovery valve 419 and the cold inlet valve 420 are electrically connected to the output end of the external power supply through the controller. The controller can control each electrical component, which is convenient for the automatic control of the device.

[0022] The working principle and usage process of the present invention: During curing, when the temperature sensor 335 detects that the temperature of the mold base 1 is lower than the curing temperature, the axial flow fan 305 and the electric heating tube 304 are started. Under the guiding action of the axial flow fan 305, the hot air flows inside the adjacent two heat preservation covers 302 and the opposite two circulation covers 301 to form a circulation air duct, and uniformly heats the blade 2. When the temperature reaches the curing temperature of the blade 2, the electric heating tube 304 stops heating, and the axial flow fan 305 continues to work to keep the temperature inside the heat preservation cover 302 uniform. Compared with the existing device, this device can uniformly heat the blade 2 in a segmented manner, making the forming quality of the blade 2 better. When the electric heating tube 304 and the axial flow fan 305 heat the blade 2, the hot air blower 404 is also started simultaneously, the heat recovery valve 419 and the heat control valve 408 are opened, the hot air blower 404 conveys hot air into the heating air box 401. Under the heat conduction of the heating fins 402, the hot air quickly heats the heating air box 401. Under the action of heat conduction, the heating of the mold base 1 is realized. The mold base 1 heats the bottom of the blade 2, and cooperates with the quality improvement component 4 to heat the top of the blade 2, so that the temperature rising speed of the blade 2 is faster, the production speed of the blade 2 is improved, and the upper and lower parts are heated simultaneously, the temperature is more uniform, further improving the product forming quality. Moreover, after the hot air heats the heating air box 401, the discharged hot air flows through the exhaust heat hose 405 and enters the inside of the heat recovery pipe 410, and then flows through the heat recovery hose 417 and the heat recovery valve 419 and flows into the air inlet end of the hot air blower 404, recovering the hot air after heating the heating air box 401, reducing the heating burden of the hot air blower 404, reducing the power consumption, realizing heat energy recovery, and the environmental protection of the device is good; And when the surface of the blade 2 is hardened, the air delivery pump 325 is started, the air distribution valve 329 connected to the air delivery box 316 is opened, and the air distribution valve 329 connected to the cooling pipe 330 is closed. The air conveyed by the air delivery pump 325 flows through the air delivery hose 326, the air delivery main pipe 324, the air delivery branch pipe 327, and the air delivery tee 328 and enters the inside of the air delivery box 316. The heating wire 332 operates to heat the flowing air. Subsequently, the air inside the air delivery box 316 flows through the air distribution pipe 317 and the air delivery holes 318 and enters the U-shaped airbag 308. After the air enters the U-shaped airbag 308, the air pressure inside the U-shaped airbag 308 increases. Under the limiting and guiding action of the sliding rod 311, the sliding rod 311 slides downward, and the return spring 313 is compressed. The U-shaped airbag 308 expands and increases. When the fitting block 315 drives the U-shaped airbag 308 to fit the top of the blade 2, the sliding rod 311 stops sliding. The bottom of the U-shaped airbag 308 can adaptively fit according to the radian of the top of the blade 2. After the bottom of the U-shaped airbag 308 fits the top of the blade 2, the air distribution valve 329 connected to the air delivery box 316 is closed, and the air delivery pump 325 stops operating. The shape of the U-shaped airbag 308 is fixed. Under the sealing action of the U-shaped airbag 308, when the hot air flows through the circulation air duct formed between two adjacent heat preservation covers 302, the hot air flow is more uniform and stable, and the hot air inside the U-shaped airbag 308 can play a heat preservation role, cooperating with the heat preservation of the heat preservation cover 302 to make the temperature inside the heat preservation cover 302 more stable, further improving the forming quality of the blade 2; When the curing of the blade 2 is completed, the exhaust valve 333 is opened, the air inside the U-shaped airbag 308 is discharged from the exhaust valve 333, the U-shaped airbag 308 contracts, the return spring 313 rebounds, and the U-shaped airbag 308 can return to its original state, waiting for the processing of the next blade 2; The axial flow fan 305 operates continuously, and the temperature sensor 335 monitors the temperature in real time. Whenever the temperature is lower than the curing temperature, the electric heating tube 304 and the heating wire 332 operate. When the temperature is higher than the curing temperature, the electric heating tube 304 and the heating wire 332 stop operating. Through the flexible control of the controller, the temperature inside the heat preservation cover 302 is ensured to be stable, and the forming quality of the blade 2 is guaranteed. When the heat generated by the curing reaction of the fiberglass accumulates and makes the temperature of the blade 2 higher than the rated curing temperature of the blade 2, the temperature sensor 335 feeds the temperature data back to the controller. The electric heating tube 304 and the heating wire 332 are turned off, and the controller opens the ventilation valve 306 and the gas distribution valve 329 connected to the cooling pipe 330. The docking cylinder 416 drives the heat preservation cylinder 409 to move along the sliding rail 415. Under the elastic force of the docking spring 423, the docking male ring 413 and the docking female ring 422 are closely fitted. Subsequently, the air delivery pump 325 conveys cold air into the cooling pipe 330. The external cold air quickly flows through the cooling pipe 330 and the inside of the connecting pipe 331. The rapid flow of the air inside the connecting pipe 331 makes the pressure inside the connecting pipe 331 less than the pressure inside the circulation cover 301. Under the action of the pressure difference, the hot air inside the circulation cover 301 is quickly discharged through the ventilation valve 306, realizing rapid cooling of the blade 2, avoiding sintering phenomenon when the temperature is too high, further ensuring the product forming quality. At the same time, the heat recovery valve 419 and the heat control valve 408 are closed, the cold air inlet valve 420 and the cold control valve 407 are opened, and the heating system of the hot air blower 404 is turned off, only the blowing function is started. The cold air enters the heating air box 401 through the cold air inlet valve 420. Under the action of heat conduction, the heating air box 401 and the mold base 1 are cooled, and the hot air is discharged through the cold control valve 407, realizing uniform cooling of the blade 2, accelerating the cooling speed of the blade 2, and further improving the production speed of the blade 2. When cooling the blade 2, the hot air discharged through the connecting pipe 331 enters the heat preservation cylinder 409 through the telescopic inner tube 421 and the recovery pipe 412. The heat conduction fins 411 increase the heat conduction area. When the hot air enters the heat preservation cylinder 409, it can quickly heat the heat recovery pipe 410. When processing the next blade 2, it can preheat the intake air of the hot air blower 404, reduce the heating power and time of the hot air blower 404, further utilize the hot air, and the environmental protection of the device is better. The assembly head 322 is connected to the top of the adjacent circulation cover 301 through the connecting plate 323 and the fixing bolts. When the processing of the blade 2 is completed, the flipping motor 320 drives the flipping shaft 319 to rotate, and the circulation cover 301 and the heat preservation cover 302 flip. The heat preservation cover 302 is separated from the top of the blade 2, which is convenient for loading and unloading the blade 2, convenient and fast. Moreover, the circulation cover 301 is connected through bolts and the connecting plate 323, and the disassembly and installation are convenient, facilitating daily maintenance.

[0023] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Automatic temperature control device for wind power generation blade, including a mold base (1), characterized in that, A temperature control forming assembly (3) is provided at the top of the mold base (1), and the temperature control forming assembly (3) includes a circulation cover (301). A number of circulation covers (301) are installed on both sides of the top of the mold base (1). Two heat preservation covers (302) are connected between two opposite circulation covers (301). A vacuum cavity (307) is formed inside the heat preservation cover (302). Both ends of the heat preservation cover (302) are connected to the adjacent circulation cover (301) through a communication box (303). An electric heating tube (304) and an axial flow fan (305) are respectively installed inside the communication box (303) at one end of two adjacent heat preservation covers (302). One end of the circulation cover (301) on one side is connected to one end of a ventilation valve (306). One side of the bottom of the heat preservation cover (302) is connected to a U-shaped airbag (308). An air delivery box (316) is installed in the middle of the top of two adjacent heat preservation covers (302). Two air distribution pipes (317) are connected to both sides of the air delivery box (316). Two air delivery holes (318) are formed at the bottom of the heat preservation cover (302) and on the top of the U-shaped airbag (308). The top ends of the air distribution pipes (317) penetrate through the adjacent heat preservation cover (302) and are connected to the adjacent air delivery holes (318).

2. The automatic temperature control device for a wind power blade according to claim 1, characterized in that, A number of sliding tubes (309) are equidistantly arranged on the top of one side of the heat preservation cover (302). A sliding rod (311) is slidably connected inside the sliding tube (309). The bottom end of the sliding rod (311) penetrates through the heat preservation cover (302) and is connected to a fitting block (315). The bottom of the fitting block (315) is connected to the inner bottom of the adjacent U-shaped airbag (308). The sliding rod (311) and the fitting block (315) are connected through a spherical joint (314). A connecting bottom ear (310) is welded to the top of the sliding tube (309). A connecting top ear (312) is welded to the top end of the sliding rod (311). A return spring (313) is connected between the connecting bottom ear (310) and the adjacent connecting top ear (312).

3. The automatic temperature control device for a wind power blade according to claim 1, characterized in that, A turning shaft (319) is rotatably installed on one side of the mold base (1). A turning motor (320) is installed at one end of the turning shaft (319). The output end of the turning motor (320) is connected to one end of the turning shaft (319). The top of the turning shaft (319) is connected to an assembly plate (321). A number of assembly heads (322) are equidistantly installed on the top of the assembly plate (321). The assembly heads (322) and the top of the adjacent circulation cover (301) are connected through a connecting plate (323) and a fixing bolt.

4. The automatic temperature control device for a wind power blade according to claim 3, wherein On one side at the top of the assembly plate (321), a main gas pipeline (324) is installed. At the other end of the rotation shaft (319), a gas pump (325) is installed. A gas hose (326) is connected between the gas outlet end of the gas pump (325) and one end of the main gas pipeline (324). On one side of the main gas pipeline (324), gas branch pipelines (327) are connected at equal intervals. The top end of the gas branch pipeline (327) is connected to one end of a gas three-way pipe (328). The other two ends of the gas three-way pipe (328) are respectively connected to one end of a gas distribution box (316) and one end of a cooling pipe (330) through gas distribution valves (329).

5. The automatic temperature control device for a wind power blade according to claim 4, characterized in that, The other end of the cooling pipe (330) is connected to one end of a communicating pipe (331). The other end of the air change valve (306) is connected to the bottom of the communicating pipe (331). An electric heating wire (332) is installed inside the gas distribution box (316). In the middle at the top of the gas distribution box (316), an exhaust valve (333) is connected.

6. The automatic temperature control device for a wind power blade according to claim 5, characterized in that, At the top of the mold base (1) and at the bottom of the heat insulation cover (302), blades (2) are placed. Inside the mold base (1), an assembly hole channel (334) is opened. At equal intervals at the top of the assembly hole channel (334), a number of temperature sensors (335) are installed.

7. The automatic temperature control device for a wind power blade according to claim 6, wherein Inside the assembly hole channel (334), a quality improvement component (4) is arranged. The quality improvement component (4) includes a heating gas box (401); At the top of the assembly hole channel (334) and on both sides of the temperature sensor (335), heating gas boxes (401) are installed. Both ends of the heating gas box (401) are connected with shunt pipes (403). At one end of the mold base (1), a hot air blower (404) is installed. The gas delivery end of the hot air blower (404) is connected to one side of a shunt pipe (403). On one side of the other shunt pipe (403), a heat exhaust hose (405) is connected; On the other side of the mold base (1), a heat insulation cylinder (409) is installed. Inside the heat insulation cylinder (409), a heat return pipe (410) is installed. One end of the heat return pipe (410) is connected to one end of a heat control three-way pipe (406) through a heat control valve (408). The other two ends of the heat control three-way pipe (406) are respectively connected to one end of the heat exhaust hose (405) and one end of a cooling control valve (407). At equal intervals at the top of the heat insulation cylinder (409), a number of recovery pipes (412) are connected; The air inlet end of the hot air blower (404) is connected to one end of an air inlet three-way pipe (418). The other two ends of the air inlet three-way pipe (418) are respectively connected to one end of a cold air inlet valve (420) and one end of a heat return valve (419). A heat return hose (417) is connected between the other end of the heat return valve (419) and the other end of the heat return pipe (410).

8. The automatic temperature control device for a wind power blade according to claim 7, characterized in that, Inside the heating gas box (401), a number of heating fins (402) are installed. A number of heat conducting fins (411) are evenly welded on the outer side and the inner side of the heat return pipe (410). At one end at the top of the heat insulation cylinder (409), a safety valve (424) is connected. A one-way valve is embedded inside the recovery pipe (412).

9. The automatic temperature control device for a wind power blade according to claim 7, characterized in that, The top end of the recovery pipe (412) is connected with a male docking ring (413). The other end of the connecting pipe (331) is internally and slidably connected with a telescopic inner pipe (421). The top end of the telescopic inner pipe (421) is connected with a female docking ring (422). Docking springs (423) are connected between both sides of the female docking ring (422) and both outer sides of the connecting pipe (331). Sliding blocks (414) are installed at both ends of the bottom of the heat preservation cylinder (409). A sliding rail (415) is installed at the bottom of the heat preservation cylinder (409) and at the bottom of the sliding blocks (414). The sliding blocks (414) are embedded inside the adjacent sliding rails (415). A docking cylinder (416) is installed on one side of the sliding rail (415). The output end of the docking cylinder (416) is connected with one end of the adjacent sliding block (414).

10. The automatic temperature control device for a wind power blade according to claim 7, wherein The input ends of the electric heating pipe (304), axial flow fan (305), ventilation valve (306), flipping motor (320), air delivery pump (325), air distribution valve (329), electric heating wire (332), exhaust valve (333), temperature sensor (335), hot air blower (404), cooling control valve (407), heating control valve (408), heat recovery valve (419) and cold air inlet valve (420) are electrically connected to the output end of an external power supply through a controller.

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