Preparation process of anti-icing wind driven generator blade

Abstract

The invention relates to the technical field of wind driven generator blades, in particular to a preparation process of an anti-icing wind driven generator blade. Comprising a lifting assembly, an upper distraction block and a lower distraction block, the upper distraction block corresponds to one side of the surface of a placing plate in parallel through the lifting assembly, the upper surface of the lower distraction block corresponds to one side of the surface of the placing plate in parallel, and the upper distraction block and the lower distraction block are symmetrically distributed on the surface of the placing plate; the blowing mechanism comprises bellows and an air conveying pipe, the bellows are fixedly mounted on two sides of the surface of the lifting assembly, an air outlet is formed in the lower surface of the air conveying pipe, and one side of the surface of the air outlet vertically corresponds to the upper surface of the placing plate. The generated wind energy inflates the interior of the PVC heat shrinkage barrel film through the air conveying pipe and the air outlet, so that the interior of the opening of the PVC heat shrinkage barrel film is effectively expanded, the inner diameter of the PVC heat shrinkage barrel film can be effectively expanded, the sleeving difficulty is greatly reduced, and the possible damage to the PVC heat shrinkage barrel film or the blades of the small wind driven generator due to forced sleeving is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of wind turbine blades, and in particular to a preparation process for anti-icing wind turbine blades. Background Art

[0002] As the global demand for clean energy grows, wind power generation, as a sustainable and pollution-free way of obtaining energy, occupies an increasingly important position in the energy supply structure. Wind turbines provide stable power support for social and economic development by converting wind energy into electrical energy. Among many wind power generation equipment, wind turbine blades are one of the key components, and their performance directly affects the power generation efficiency and reliability of the entire wind power generation system.

[0003] The current preparation process for anti-icing wind turbine blades requires the cooperation of multiple people in the existing technology for covering small generator blades with PVC heat shrinkable tube film. Some operators are responsible for stretching the PVC heat shrinkable tube film, and some are responsible for pulling and adjusting the position of the PVC heat shrinkable tube film, and then the small generator blade is sleeved inside the PVC heat shrinkable tube film. Since the PVC heat shrinkable tube film is stretched only on both sides, the inner wall of the PVC heat shrinkable tube film is still in a fitted state. Therefore, in the process of sleeved the small generator blade inside the PVC heat shrinkable tube film, it will be subject to resistance caused by contact with the inner wall of the PVC heat shrinkable tube film, and the surface of the small generator blade will be scratched. In addition, in this multi-person collaborative operation, it is difficult to ensure that each operator exerts uniform force and coordinates movements, resulting in inconsistent stretching of the PVC heat shrinkable tube film. This inconsistency may cause local over-stretching or relaxation of the PVC heat shrinkable tube film. The over-stretched part is prone to rupture during the covering process, and the relaxed part may not be able to fit the blade tightly, affecting the anti-icing effect.

[0004] Therefore, there is an urgent need for a preparation process for anti-icing wind turbine blades to solve the existing technical problems. Summary of the invention

[0005] The object of the present invention is to provide a process for preparing an ice-proof wind turbine blade to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides a process for preparing an anti-icing wind turbine blade, comprising the following steps:

[0007] S1. Place the cut PVC heat shrink tube film on the upper surface of the placement plate, and use the screw rod to transfer it to the upper and lower support blocks;

[0008] S2, inserting the upper and lower support blocks into the upper and lower ends of the inner side of the PVC heat shrink tube film, and using the support mechanism to lift the upper support block, and drive the inner top of the PVC heat shrink tube film to be lifted upward synchronously, so that the opening position of the PVC heat shrink tube film is opened;

[0009] S3, when the opening position of the PVC heat shrink tube film is opened to the maximum diameter, it is connected to the air outlet correspondingly, and air is blown into the inside of the PVC heat shrink tube film to make it expand;

[0010] S4, finally, the small wind turbine blade is transferred to the opening position of the PVC heat shrinkable tube film by a conveyor belt, and is sleeved inside the PVC heat shrinkable tube film, and finally, after the PVC heat shrinkable tube film is sleeved on the small wind turbine blade, it is heated and shrunk and vacuumed at the same time, so that the PVC heat shrinkable tube film and the small wind turbine blade are fitted;

[0011] Among them, the preparation equipment used in this process includes a workbench, a guide rail, a propping mechanism and a blower mechanism;

[0012] The guide rail includes a placing plate, and screw rods are connected to the two sides of the placing plate surface for transmission. One side of the placing plate surface is parallel to the other side of the conveyor belt surface, and the placing plate moves toward the conveyor belt surface through the screw rod. The cut PVC heat shrink tube film is placed on the upper surface of the placing plate, and the small wind turbine blades are driven by the conveyor belt to be sleeved inside the PVC heat shrink tube film.

[0013] The spreading mechanism includes a lifting assembly, an upper spreading block and a lower spreading block. The upper spreading block is parallel to one side of the placement plate surface through the lifting assembly, the upper surface of the lower spreading block is parallel to one side of the placement plate surface, and the upper spreading block and the lower spreading block are symmetrically distributed on the placement plate surface.

[0014] As a further improvement of the present technical solution, the lifting assembly includes a support column, a hydraulic cylinder is fixedly installed at the center position of the upper surface of the support column, a hydraulic telescopic rod is fixedly connected to the lower surface of the hydraulic cylinder, a connecting plate is fixedly connected to the lower surface of the hydraulic telescopic rod, an upper support block is fixedly installed on the lower surface of the connecting plate, a groove is opened on one side of the guide rail surface, the groove is arranged on the lower surface of the upper support block, and the lower support block is fixedly installed at the center position of the groove.

[0015] As a further improvement of the present technical solution, the screw rod is fixedly installed on both sides of the inner wall of the guide rail, the placing plate is slidably sleeved on the surface of the screw rod, limiting strips are fixedly installed on both sides of the upper surface of the placing plate, baffles are arranged on both sides of the front end surface of the placing plate, and one side of the upper surface of the placing plate is parallel to the surface of the upper support block and the lower support block.

[0016] As a further improvement of the present technical solution, the hair dryer mechanism includes a bellows and an air duct. The bellows are fixedly mounted on both sides of the lifting assembly surface. An air outlet is provided on the lower surface of the air duct. One side of the air outlet surface is vertically corresponding to the upper surface of the placement plate.

[0017] As a further improvement of the present technical solution, a control panel is fixedly installed at the center position of the front end surface of the workbench, a conveyor belt is movably installed on one side of the upper surface of the workbench, driving gears are hinged on both sides of the surface of the conveyor belt, a driving motor is fixedly connected to one side of the surface of the driving gear, and the driving motor is installed on the inner side of the workbench to drive the conveyor belt to run on one side of the upper surface of the workbench.

[0018] As a further improvement of the present technical solution, the PVC heat shrinkable tube film is transferred to the positions of the upper and lower support blocks through the placement plate, and the upper support block is lowered to one side of the surface of the PVC heat shrinkable tube film through the lifting assembly and plugged into the top of the inner side of the PVC heat shrinkable tube film. At the same time, the lower support block is plugged into the bottom of the inner side of the PVC heat shrinkable tube film, and the lifting assembly is used to drive the upper support block to move upward to open the PVC heat shrinkable tube film.

[0019] As a further improvement of the technical solution, after the PVC heat shrinkable tube film is opened, the air outlet surface and the inside of the PVC heat shrinkable tube film are correspondingly connected, and air is blown into the inside of the PVC heat shrinkable tube film to expand the inside of the PVC heat shrinkable tube film.

[0020] As a further improvement of the technical solution, the blades of the small wind turbine generator are transported to the inside of the opened PVC heat shrink tube film through a conveyor belt.

[0021] As a further improvement of the present technical solution, the shape of the center position of the upper surface of the placement board is concave downward, the PVC heat shrinkable tube film is clamped on the center position of the upper surface of the placement board through a limiting strip, and the front end of the PVC heat shrinkable tube film is clamped on the upper surface of the placement board through a baffle limiting clamp, so as to facilitate the clamping of the front end opening position of the PVC heat shrinkable tube film and the surface of the upper support block and the lower support block.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The preparation process of the anti-icing wind turbine blade is as follows: the cut PVC heat shrink tube film is placed at the center of the placement plate surface, the position of the PVC heat shrink tube film and the front opening position are limited by the limit strip and the baffle, and the PVC heat shrink tube film is transferred to one side of the conveyor belt surface by the screw rod, and vertically corresponds to the upper support block and the lower support block, and the opening position of the PVC heat shrink tube film is collapsed below the opening position through the groove, so that the lower support block can be plugged into the bottom of the inner side of the PVC heat shrink tube film opening, and the upper support block is lowered to the bottom of the inner side of the PVC heat shrink tube film opening by the hydraulic cylinder and the hydraulic telescopic rod. The upper support block is moved upward again by the hydraulic cylinder and the hydraulic telescopic rod, thereby driving the opening position of the PVC heat shrinkable tube film to open. At this time, the conveyor belt moves the small wind turbine blade toward the opening direction of the PVC heat shrinkable tube film, thereby facilitating the small wind turbine blade to be sleeved inside the PVC heat shrinkable tube film, avoiding the need for staff to manually connect the PVC heat shrinkable tube film and the small wind turbine blade, and then sleeve the small wind turbine blade inside the PVC heat shrinkable tube film.

[0024] 2. The preparation process of the anti-icing wind turbine blade is as follows: after the opening position of the PVC heat shrink tube film is opened, the air outlet is set to correspond to the two sides of the opening position of the PVC heat shrink tube film, and the bellows can be operated. The generated wind energy inflates the inside of the PVC heat shrink tube film through the air duct and the air outlet, effectively expanding the inside of the opening of the PVC heat shrink tube film, which can effectively expand the inner diameter of the PVC heat shrink tube film, greatly reducing the difficulty of installation, and reducing the damage to the PVC heat shrink tube film or the small wind turbine blade caused by forced installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the workbench structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the connection structure between the workbench and the guide rail of the present invention;

[0027] Figure 3 It is a schematic diagram of the connection structure of the placement plate, the screw rod and the opening mechanism of the present invention;

[0028] Figure 4 It is a schematic diagram of the connection structure of the conveyor belt, the placement plate and the upper support block of the present invention;

[0029] Figure 5 It is a schematic diagram of the connection structure between the groove and the lower support block of the present invention;

[0030] Figure 6 It is a schematic diagram of the connection structure of the upper support block and the lower support block of the present invention;

[0031] Figure 7It is a schematic diagram of the structure of the hair dryer of the present invention;

[0032] Figure 8 It is a schematic diagram of the connection structure of the placement plate, the lower support block and the air outlet of the present invention;

[0033] Fig. 9 for Figure 8 Schematic diagram of the enlarged structure at point A in the middle.

[0034] The meaning of each number in the figure is:

[0035] 100. workbench; 101. conveyor belt; 102. control panel;

[0036] 200, guide rail; 201, placement plate; 202, limit strip; 203, screw rod; 204, baffle;

[0037] 300, opening mechanism; 301, support column; 302, hydraulic cylinder; 303, hydraulic telescopic rod; 304, connecting plate; 305, upper opening block; 306, groove; 307, lower opening block;

[0038] 400. hair dryer structure; 401. bellows; 402. air duct; 403. air outlet. DETAILED DESCRIPTION

[0039] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] See also Figure 1 - Fig. 9 As shown, the purpose of this embodiment is to provide a preparation process for anti-icing wind turbine blades, comprising the following steps:

[0041] S1. The staff places the cut PVC heat shrink tube film in a straight line at the center of the upper surface of the placement plate 201, and sets a circle of thickened PVC material around the opening of the PVC heat shrink tube film and clamps it on the surface of the baffle 204. The placement plate 201 is moved to the intersection of the guide rail 200 and the conveyor belt 101 through the screw rod 203, and the upper support block 305 is plugged into the top of the inner side of the PVC heat shrink tube film. At the same time, the position below the front end opening of the PVC heat shrink tube film collapses to a certain height through the groove 306, which can effectively allow the lower support block 307 to be plugged into the bottom of the inner side of the PVC heat shrink tube film;

[0042] S2. After the upper opening block 305 and the lower opening block 307 are both inserted into the inside of the PVC heat shrinkable tube film, the hydraulic cylinder 302 is started, and the hydraulic telescopic rod 303 and the connecting plate 304 move upward, so that the upper opening block 305 drives the inner top of the PVC heat shrinkable tube film to stretch upward, and at the same time, the lower opening block 307 has a fixing effect on the inner bottom of the PVC heat shrinkable tube film, thereby opening the opening position of the PVC heat shrinkable tube film, and as the hydraulic telescopic rod 303 rises to the highest position, the opening diameter of the PVC heat shrinkable tube film is effectively maximized;

[0043] S3. When the opening diameter of the PVC heat shrinkable tube film reaches the maximum, the air outlet 403 and the inside of the PVC heat shrinkable tube film are correspondingly connected, and the bellows 401 is started. The generated wind energy is transmitted to the position of the air outlet 403 through the air delivery pipe 402, and the inside of the PVC heat shrinkable tube film is inflated to expand the inside of the PVC heat shrinkable tube film, so that the blades of the small wind turbine generator are effectively sleeved inside the PVC heat shrinkable tube film. At the same time, a flow sensor is installed on the outer surface of the air delivery pipe 402, which can monitor the gas flow transmitted from the bellows 401 to the inside of the PVC heat shrinkable tube film in real time, so that the PVC heat shrinkable tube film can expand evenly and stably;

[0044] S4, finally, the conveyor belt 101 runs, so that the small wind turbine blade placed on the upper surface of the conveyor belt 101 moves toward the opening direction of the PVC heat shrinkable tube film, and is sleeved inside the PVC heat shrinkable tube film. Finally, after the PVC heat shrinkable tube film is sleeved onto the small wind turbine blade, it is heated and shrunk and vacuumed at the same time, so that the PVC heat shrinkable tube film is fitted to the small wind turbine blade.

[0045] Therefore, based on the above structure, combined with Figure 3-Figure 6 The structure of the spreading mechanism 300 is further disclosed as shown, and the spreading mechanism 300 includes a lifting assembly, an upper spreading block 305 and a lower spreading block 307. The lifting assembly includes a support column 301, a hydraulic cylinder 302 is fixedly installed at the center of the upper surface of the support column 301, a hydraulic telescopic rod 303 is fixedly connected to the lower surface of the hydraulic cylinder 302, a connecting plate 304 is fixedly connected to the lower surface of the hydraulic telescopic rod 303, the upper spreading block 305 is fixedly installed on the lower surface of the connecting plate 304, a groove 306 is opened on one side of the surface of the guide rail 200, the groove 306 is arranged on the lower surface of the upper spreading block 305, and the lower spreading block 307 is fixedly installed at the center of the groove 306;

[0046] Furthermore, the upper opening block 305 is originally maintained at a position level with the upper surface of the placement plate 201 by the lifting assembly. When the placement plate 201 transfers the PVC heat shrink tube film to one side of the surface of the upper opening block 305, the upper opening block 305 is plugged into the top of the inner side of the PVC heat shrink tube film. At the same time, the groove 306 provided can collapse the lower surface of the PVC heat shrink tube film downward, so that the lower opening block 307 is plugged into the bottom of the inner side of the PVC heat shrink tube film. The upper opening block 305 and the lower opening block 307 are plugged into the PVC heat shrink tube film at one end with an obtuse angle, so that the upper opening block 305 and the lower opening block 307 are plugged into the upper and lower ends of the inner side of the PVC heat shrink tube film more conveniently.

[0047] After the upper opening block 305 and the lower opening block 307 are inserted into the PVC heat shrink tube film, the hydraulic cylinder 302 is started again, and the hydraulic telescopic rod 303 and the connecting plate 304 drive the upper opening block 305 to move upward, and under the clamping action of the lower opening block 307, the opening position of the PVC heat shrink tube film is effectively opened, and as the hydraulic telescopic rod 303 rises to the highest position, the opening diameter of the PVC heat shrink tube film is effectively maximized;

[0048] Therefore, based on the above structure, combined with Figure 7-Figure 8 The structure of the blower mechanism 400 is further disclosed as shown, and the blower mechanism 400 includes a bellows 401 and an air delivery pipe 402. The bellows 401 are fixedly mounted on both sides of the lifting assembly surface, and an air outlet 403 is opened on the lower surface of the air delivery pipe 402. One side of the surface of the air outlet 403 is vertically corresponding to the upper surface of the placement plate 201.

[0049] When the opening diameter of the PVC heat shrinkable tube film reaches the maximum, the two sides of the opening position of the PVC heat shrinkable tube film can be effectively connected to the air outlet 403, and the wind box 401 is running to transmit the generated wind energy to the air outlet 403 through the air delivery pipe 402, and inflate the inside of the PVC heat shrinkable tube film to expand the inside of the PVC heat shrinkable tube film, so that the blades of the small wind turbine generator are effectively sleeved inside the PVC heat shrinkable tube film;

[0050] It should be noted that: a reinforcement structure is provided at the opening of the PVC heat shrinkable tube film (a circle of thickened PVC material is provided around the opening of the PVC heat shrinkable tube film to keep the shape of the opening of the PVC heat shrinkable tube film stable during the assembly process to prevent the opening from deformation);

[0051] A flow sensor is installed on the outer surface of the air delivery pipe 402, which can monitor the gas flow transmitted from the bellows 401 to the inside of the PVC heat shrinkable tube film in real time, so that the PVC heat shrinkable tube film can expand evenly and stably.

[0052] Based on the above structure, combined with Figure 2-Figure 3 and Fig. 9As shown, the structure of the guide rail 200 is further disclosed, the screw rod 203 is fixedly installed on both sides of the inner wall of the guide rail 200, the placement plate 201 is slidably sleeved on the surface of the screw rod 203, the limit strips 202 are fixedly installed on both sides of the upper surface of the placement plate 201, and the baffles 204 are arranged on both sides of the front end surface of the placement plate 201. One side of the upper surface of the placement plate 201 is parallel to the surface of the upper support block 305 and the lower support block 307;

[0053] Furthermore, by placing the cut PVC heat shrinkable tube film at the center of the upper surface of the placement plate 201, the PVC heat shrinkable tube film is limited by the limiting strip 202 to maintain a straight state, and a circle of thickened PVC material is arranged around the opening of the PVC heat shrinkable tube film to be snapped onto the surface of the baffle 204, so that the opening position of the PVC heat shrinkable tube film is snapped into the corresponding position of the upper opening block 305 and the lower opening block 307;

[0054] Based on the above structure, combined with Figure 1-Figure 2 and Figure 4 As shown, the structure of the workbench 100 is further disclosed. A control panel 102 is fixedly installed at the center of the front end surface of the workbench 100. Drive gears are hinged on both sides of the surface of the conveyor belt 101. A drive motor is fixedly connected to one side of the surface of the drive gear. The drive motor is installed on the inner side of the workbench 100 to drive the conveyor belt 101 to run on one side of the upper surface of the workbench 100.

[0055] Furthermore, after the placement plate 201 transfers the PVC heat shrink tube film to the position of the upper opening block 305 and the lower opening block 307, and the opening position of the PVC heat shrink tube film is opened to the maximum through the upper opening block 305 and the lower opening block 307, and the air outlet 403 is used to inflate the inside of the PVC heat shrink tube film to make it expand, the conveyor belt 101 can transfer the small wind turbine blade to the opening position of the PVC heat shrink tube film, and finally be sleeved inside the PVC heat shrink tube film.

[0056] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A process for preparing an anti-icing wind turbine blade, characterized in that: The following steps are involved: S1, placing the cut PVC heat shrink tubular film on the upper surface of the placement plate (201), and transferring it to the upper support block (305) and the lower support block (307) by means of the screw rod (203); S2, inserting the upper and lower opening blocks (305) and the lower opening blocks (307) into the upper and lower ends of the inner side of the PVC heat shrinkable tube film, and using the opening mechanism (300) to raise the upper opening block (305), and drive the inner top of the PVC heat shrinkable tube film to be lifted upward synchronously, so that the opening position of the PVC heat shrinkable tube film is opened; S3, when the opening position of the PVC heat shrink tube film is opened to the maximum diameter, it is connected to the air outlet (403) to blow air into the inside of the PVC heat shrink tube film to make it expand; S4, finally, the small wind turbine generator blade is transferred to the opening position of the PVC heat shrinkable tube film by means of a conveyor belt (101), and is sleeved inside the PVC heat shrinkable tube film. Finally, after the PVC heat shrinkable tube film is sleeved onto the small wind turbine generator blade, it is heated and shrunk and vacuumized at the same time, so that the PVC heat shrinkable tube film and the small wind turbine generator blade are fitted together; The preparation equipment used in the process includes a workbench (100), a guide rail (200), an opening mechanism (300) and a blower mechanism (400); The guide rail (200) comprises a placement plate (201), and screw rods (203) are transmission-connected on both sides of the surface of the placement plate (201), one side of the surface of the placement plate (201) is parallel to one side of the surface of the conveyor belt (101), and the placement plate (201) moves toward the surface of the conveyor belt (101) through the screw rod (203), and a cut PVC heat shrink tube film is placed on the upper surface of the placement plate (201), and the blades of the small wind turbine generator are driven to be sleeved inside the PVC heat shrink tube film through the conveyor belt (101); The spreading mechanism (300) comprises a lifting assembly, an upper spreading block (305) and a lower spreading block (307); the upper spreading block (305) is parallel to one side of the surface of the placement plate (201) through the lifting assembly; the upper surface of the lower spreading block (307) is parallel to one side of the surface of the placement plate (201); and the upper spreading block (305) and the lower spreading block (307) are symmetrically distributed on the surface of the placement plate (201).

2. The process for preparing an anti-icing wind turbine blade according to claim 1, characterized in that: The lifting assembly comprises a support column (301), a hydraulic cylinder (302) is fixedly installed at the center position of the upper surface of the support column (301), a hydraulic telescopic rod (303) is fixedly connected to the lower surface of the hydraulic cylinder (302), a connecting plate (304) is fixedly connected to the lower surface of the hydraulic telescopic rod (303), the upper support block (305) is fixedly installed on the lower surface of the connecting plate (304), a groove (306) is opened on one side of the surface of the guide rail (200), the groove (306) is arranged on the lower surface of the upper support block (305), and the lower support block (307) is fixedly installed at the center position of the groove (306).

3. The process for preparing an anti-icing wind turbine blade according to claim 2, characterized in that: The screw rod (203) is fixedly mounted on both sides of the inner wall of the guide rail (200); the placement plate (201) is slidably sleeved on the surface of the screw rod (203); limit strips (202) are fixedly mounted on both sides of the upper surface of the placement plate (201); baffles (204) are provided on both sides of the front end surface of the placement plate (201); and one side of the upper surface of the placement plate (201) is parallel to the surfaces of the upper support block (305) and the lower support block (307).

4. The process for preparing an anti-icing wind turbine blade according to claim 1, characterized in that: The blower mechanism (400) comprises a bellows (401) and an air supply pipe (402); the bellows (401) is fixedly mounted on both sides of the surface of the lifting component; an air outlet (403) is provided on the lower surface of the air supply pipe (402); and one side of the surface of the air outlet (403) is vertically corresponding to the upper surface of the placement plate (201).

5. The process for preparing an anti-icing wind turbine blade according to claim 1, characterized in that: A control panel (102) is fixedly mounted at the center position of the front end surface of the workbench (100); a conveyor belt (101) is movably mounted on one side of the upper surface of the workbench (100); driving gears are hingedly mounted on both sides of the surface of the conveyor belt (101); a driving motor is fixedly connected to one side of the surface of the driving gear; the driving motor is mounted on the inner side of the workbench (100) and drives the conveyor belt (101) to run on one side of the upper surface of the workbench (100).

6. The process for preparing an anti-icing wind turbine blade according to claim 3, characterized in that: The PVC heat shrink tubular film is transferred to the positions of the upper opening block (305) and the lower opening block (307) through the placement plate (201); the upper opening block (305) is lowered to one side of the surface of the PVC heat shrink tubular film through the lifting component and plugged into the top of the inner side of the PVC heat shrink tubular film; meanwhile, the lower opening block (307) is plugged into the bottom of the inner side of the PVC heat shrink tubular film; the lifting component is used to drive the upper opening block (305) to move upward, so that the PVC heat shrink tubular film opens.

7. The process for preparing an anti-icing wind turbine blade according to claim 4, characterized in that: After the PVC heat shrinkable tube film is opened, the surface of the air outlet (403) is correspondingly connected to the inside of the PVC heat shrinkable tube film, and air is blown into the inside of the PVC heat shrinkable tube film to expand the inside of the PVC heat shrinkable tube film.

8. The process for preparing an anti-icing wind turbine blade according to claim 5, characterized in that: The small wind turbine blades are transported to the inside of the opened PVC heat shrink tubular film via a transport belt (101).

9. The process for preparing an anti-icing wind turbine blade according to claim 3, characterized in that: The center position of the upper surface of the placement plate (201) is concave downwards, and the PVC heat shrink tube film is clamped at the center position of the upper surface of the placement plate (201) through a limiting strip (202), and the front end of the PVC heat shrink tube film is clamped at the upper surface of the placement plate (201) through a baffle (204), so that the front end opening position of the PVC heat shrink tube film is clamped with the surface of the upper support block (305) and the lower support block (307).

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