Environment-friendly field cutting equipment for blades of wind turbine generator

Abstract

The invention relates to the technical field of wind turbine generator blade cutting, in particular to wind turbine generator blade on-site cutting environment-friendly equipment which comprises a blade conveying and fixing device capable of conveying blades and / or fixing the blades; the blade cutting device is mounted on the blade conveying and fixing device and can be used for cutting blades; the dust recycling device is communicated with the blade conveying and fixing device and can recycle dust and waste generated by cutting the blades; and the control device is electrically connected with the blade cutting device and the dust recovery device. The equipment can effectively recycle and control wastes such as dust and composite material scraps generated in the blade cutting process, and pollution to the local environment is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine blade cutting, and in particular to environmentally friendly equipment for on-site cutting of wind turbine blades. Background Art

[0002] At present, in accordance with the demand for renewal of old wind farms and the release of the "large-scale replacing small-scale" policy, in order to improve the overall power generation efficiency and competitiveness of wind farms, old wind farms are being updated and renovated. The wind turbines installed in wind farms are usually dismantled and then recycled. As an important component of wind turbines, the recycling and reuse of blades has become a key link in the renovation process. Due to the large size of the blade structure, the existing technology usually adopts the methods of off-site transportation and on-site cutting. Among them, off-site transportation is usually carried out in a dedicated industrial plant, which is relatively costly. In the on-site cutting method, manual cutting is usually adopted, and the cutting device is manually controlled for cutting. The residues produced by cutting cannot be effectively recycled. Or automatic devices are used to assist in cutting, but the cutting part is usually directly exposed to the wild environment, and the dust and debris produced during the cutting process cannot be effectively controlled.

[0003] However, with the improvement of environmental awareness, if the dust generated by cutting cannot be effectively controlled, on-site cutting of blades will be difficult to implement, and transporting them to other places for processing will greatly increase costs. Summary of the Invention

[0004] The present invention provides an environmentally friendly device for on-site cutting of wind turbine blades, which is used to solve the problem of how to effectively control dust and debris generated by on-site blade cutting to avoid environmental pollution.

[0005] The present invention provides an environmentally friendly device for on-site cutting of wind turbine blades, comprising:

[0006] a blade conveying and fixing device capable of conveying blades and / or fixing blades;

[0007] a blade cutting device, mounted on the blade conveying and fixing device, capable of cutting the blade;

[0008] a dust recovery device, connected to the blade conveying and fixing device, capable of recovering dust and waste generated by cutting the blades;

[0009] The control device is electrically connected to the blade cutting device and the dust recovery device.

[0010] In some embodiments, the blade conveying and fixing device includes:

[0011] Support stand;

[0012] A roller bar is connected to the support frame for rotation along the blade conveying direction;

[0013] The blade clamping and fixing assembly is installed on the support stand and is used for clamping and fixing the blade.

[0014] In some embodiments, the blade clamping and fixing assembly includes:

[0015] Fixed plate;

[0016] an adjusting connecting rod, the end of which is mounted on the fixing plate;

[0017] A blade clamping block is installed on the adjusting connecting rod and can clamp and fix the blade;

[0018] A locking nut is threadedly connected to the adjusting connecting rod and is used to fix the blade clamp.

[0019] In some embodiments, the blade cutting device comprises:

[0020] annular support rod;

[0021] A plurality of circular saw blades are evenly distributed on the annular support rod and fixedly connected to the annular support rod;

[0022] The cutting drive assembly can drive the plurality of circular saw blades to rotate.

[0023] In some embodiments, the blade cutting device further comprises:

[0024] Fixed rod;

[0025] A rotating connecting rod, one end of which is connected to the fixed rod and the other end of which is connected to the annular support rod;

[0026] a spray assembly, for spraying cutting fluid onto the circular saw blade;

[0027] The cutting protection cover is sleeved on the outside of the annular support rod, the circular saw blade and the cutting drive assembly.

[0028] In some embodiments, the spray assembly includes:

[0029] Cutting fluid storage tank;

[0030] a liquid supply pipe, one end of which is connected to the cutting fluid storage tank;

[0031] a distribution valve, connected to the other end of the liquid supply pipe, for distributing cutting fluid;

[0032] a spray head, mounted on the upper portion of the circular saw blade;

[0033] The cutting fluid pump is used to pump the cutting fluid in the cutting fluid storage tank to the spray head.

[0034] In some embodiments, the dust recovery device includes:

[0035] Dust protection components;

[0036] A dust removal pipe, one end of which is connected to the dust protection component;

[0037] a dust storage assembly, connected to the other end of the dust removal pipe, for storing dust and waste generated during the cutting process;

[0038] The vacuum component is communicated with the dust storage component to provide negative pressure for the dust storage component and the dust removal pipe.

[0039] The dustproof net is located between the dust storage component and the vacuum component and is used to isolate dust and waste.

[0040] In some embodiments, the dust removal pipe is a three-way hose, which is connected to the bottom and side of the dust protection assembly respectively.

[0041] In some embodiments, the dust removal pipe is connected to the dust protection assembly and the dust storage assembly via quick-connect connectors.

[0042] In some embodiments, the dust protection assembly includes:

[0043] Dust protection hood;

[0044] A plurality of protective curtains are arranged along the conveying direction of the blades and form a plurality of enclosed spaces with the dust protective cover.

[0045] The beneficial effects of the present invention are as follows:

[0046] Compared with the existing technology, on-site cutting of blades cannot recycle dust and waste, which causes environmental pollution and the direct transportation to other places for treatment is costly. The on-site cutting environmental protection equipment for wind turbine blades provided by the present invention realizes the transportation and fixation of different parts of the blades by setting a blade conveying and fixing device, cuts the blades by setting a blade cutting device, and recycles the dust and composite material debris and other wastes generated during the blade cutting process by setting a dust recovery device, thereby realizing effective dust recovery control, solving the problem of properly handling the dust and waste (such as composite material debris) generated by on-site cutting of wind turbine blades, avoiding pollution to the local environment, ensuring the safe and effective recycling of waste, and improving the efficiency of subsequent transportation, treatment and reuse of discarded blades. Taking into account environmental protection and pollutant control, through technological innovation and optimized design, a blade on-site cutting environmental protection device that meets both the needs of the wind power industry and environmental protection requirements is developed, significantly improving economic and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a side view of the overall structure of an embodiment of the environmental protection equipment for on-site cutting of wind turbine blades according to the present invention;

[0048] Figure 2 yes Figure 1 The top view of the overall structure of the environmental protection equipment for on-site cutting of wind turbine blades shown;

[0049] Figure 3 is a schematic diagram of the blade conveying and fixing device of the present invention;

[0050] Figure 4 It is a schematic diagram of the blade cutting device and the blade conveying and fixing device of the present invention;

[0051] Figure 5 is a schematic diagram of the dust recovery device of the present invention;

[0052] Figure 6 Schematic diagram of the control device of the present invention.

[0053] Explanation of reference numerals: 1-blade conveying and fixing device; 11-supporting stand; 12-roller bar; 13-blade clamping and fixing assembly; 131-fixing plate; 132-adjusting connecting rod; 133-locking nut; 134-blade clamping block; 2-blade cutting device; 21-cutting protective cover; 22-spraying assembly; 221-cutting fluid pump; 222-cutting fluid storage tank; 223-liquid supply pipe; 224-distribution valve; 225-spraying head; 23-circular saw blade; 2 4-cutting drive assembly; 25-annular support rod; 26-rotating connecting rod; 27-fixed rod; 3-dust recovery device; 31-dust protection assembly; 311-dust protection cover; 312-protective curtain; 32-dust removal pipe; 33-dust storage assembly; 34-dustproof net; 35-vacuum assembly; 4-control device; 41-microcontroller; 42-signal conditioner; 43-power supply; 44-switching element; 45-control and power cables; 46-control box. DETAILED DESCRIPTION

[0054] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0055] As mentioned in the background, the dust and debris generated by traditional on-site blade cutting cannot be effectively controlled, leading to environmental pollution. Therefore, how to effectively control the dust and debris generated by on-site blade cutting to avoid environmental pollution has become a technical problem that needs to be solved urgently by those skilled in the art.

[0056] To solve the above problems, refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The present invention provides an environmental protection device for on-site cutting of blades of a wind turbine generator, comprising: a blade conveying and fixing device 1, a blade cutting device 2, a dust recovery device 3 and a control device 4. The blade conveying and fixing device 1 can convey blades, and when cutting blades, the blade conveying and fixing device 1 can fix the blades. The blade cutting device 2 is installed on the blade conveying and fixing device 1 for cutting blades. The dust recovery device 3 is installed on the blade conveying and fixing device 1 for recovering dust and waste generated by cutting blades. The control device 4 is electrically connected to the blade cutting device 2 and the dust recovery device 3.

[0057] During specific use, the blade conveying and fixing device 1 conveys the part of the blade to be cut to the blade cutting device 2, the blade cutting device 2 cuts the blade, and the dust recovery device 3 recovers the dust and composite material debris and other waste generated during the blade cutting process. The above process is repeated again, and the blade cutting device 2 cuts the next part of the blade to be cut. The above process is repeated many times to complete the cutting of the entire blade and the recovery of dust and waste.

[0058] Compared with the existing technology, on-site cutting of blades cannot recycle dust and waste, which causes environmental pollution and the direct transportation to other places for treatment is costly. The on-site cutting environmental protection equipment for wind turbine blades provided by the present invention realizes the transportation and fixation of different parts of the blades by setting a blade conveying and fixing device 1, cuts the blades by setting a blade cutting device 2, and recycles the dust and composite material debris and other wastes generated during the blade cutting process by setting a dust recovery device 3, thereby realizing effective dust recovery control, solving the problem of properly handling the dust and waste (such as composite material debris) generated by on-site cutting of wind turbine blades, avoiding pollution to the local environment, ensuring that the waste is safely and effectively recycled, and improving the efficiency of subsequent transportation, treatment and reuse of discarded blades. Taking into account environmental protection and pollutant control, through technological innovation and optimized design, a blade on-site cutting environmental protection device is developed that meets the needs of the wind power industry and meets environmental protection requirements, significantly improving economic and environmental benefits.

[0059] like Figure 1 、 Figure 2 、 Figure 3 As shown, the blade conveying and fixing device 1 includes a supporting frame 11, a roller 12, and a blade clamping and fixing assembly 13. There are multiple rollers 12, and multiple rollers 12 are installed on the supporting frame 11 in sequence and rotate along the blade conveying direction. The blade clamping and fixing assembly 13 is installed on the supporting frame 11 and is used to clamp and fix the blade to be cut. The support frame 11 is used to support the blade to be cut and to fix the roller 12 and the blade clamping and fixing assembly 13.

[0060] Furthermore, the width of the support stand 11 is 1.05 times the maximum chord length of the blade to be cut, and the height of the support stand 11 is adjusted according to the needs of blade cutting.

[0061] Furthermore, the support frame 11 is rotatably connected to a plurality of rollers 12 to achieve the transmission of the blade along the span direction of the blade on the support frame 11. Preferably, the span-wise interval of the rollers 12 is 30 cm.

[0062] Furthermore, the blade clamping and fixing assembly 13 includes a fixing plate 131, an adjustment link 132, a locking nut 133, and a blade clamping block 134. Both ends of the adjustment link 132 are mounted on the fixing plate 131, and the locking nut 133 is used to lock the blade clamping block 134 to the adjustment link 132. There are two blade clamping blocks 134, which work together to clamp and fix the blade, preventing it from moving during the cutting process.

[0063] Furthermore, a plurality of reinforcing ribs are provided on both sides of the fixing plate 131 to improve the stability of the fixing plate 131 .

[0064] Furthermore, both ends of the adjusting link 132 are threaded structures for detachably connecting with the locking nut 133 , thereby achieving locking or disassembly of the blade clamp 134 .

[0065] Furthermore, the adjusting link 132 is located on top of the fixing plate 131. Preferably, there are multiple adjusting links 132, with a spacing of 1 meter between the multiple adjusting links 132. The fixing plate 131 is fixedly connected to the multiple adjusting links 132. By providing multiple adjusting links 132 along the blade transmission direction, multiple positions of the blade are fixed, thereby improving the stability of the blade during cutting and preventing the blade from slipping during cutting, which would affect the cutting process.

[0066] Furthermore, the blade clamp 134 is connected to the adjusting link 132 and the locking nut 133 in sequence, and the clamping force is applied by the locking nuts 133 at both ends of the adjusting link 132 to fix the blade, thereby further improving the stability of the blade when cutting the blade.

[0067] Furthermore, the fixing plate 131 is fixedly connected to the support frame 11 , thereby enabling the blade clamping and fixing assembly 13 to be fixedly mounted on the support frame 11 .

[0068] like Figure 1 、 Figure 2 、 Figure 4As shown, the blade cutting device 2 includes a cutting shield 21, a spray assembly 22, multiple circular saw blades 23, a cutting drive assembly 24, an annular support rod 25 connected to the circular saw blades 23, a rotating connecting rod 26, and a fixed rod 27. The fixed rod 27 is connected to the rotating connecting rod 26, and the rotating connecting rod 26 is connected to the annular support rod 25. The multiple circular saw blades 23 are evenly distributed along the annular support rod 25 and are mounted on the annular support rod 25, facilitating simultaneous cutting of multiple locations on the periphery of the blade, thereby improving cutting efficiency. The cutting drive assembly 24 is connected to the multiple circular saw blades 23 and is used to drive the circular saw blades 23 to rotate and cut the blades. The spray assembly 22 is used to spray cutting fluid, thereby lubricating and cooling the circular saw blades 23. The cutting protective cover 21 is mounted on the outer periphery of multiple circular saw blades 23, a cutting drive assembly 24, and an annular support rod 25 connected to the circular saw blades 23. On the one hand, it prevents dust and waste generated during the cutting process from flying outward and polluting the environment; on the other hand, it facilitates the subsequent collection of dust and waste.

[0069] Furthermore, the annular support rod 25 is connected to a rotating link 26 that can rotate along the cutting plane, and the rotating link 26 is connected to a fixed rod 27. By adjusting the annular support rod 25 by rotating the link 26, the circular saw blade 23 can be adjusted towards or away from the blade, making it easy to make adaptive adjustments according to changes in the outer diameter of the blade.

[0070] Furthermore, the annular support rod 25 is evenly provided with a plurality of matching holes and fastening threaded holes. The circular saw blade 23 is fastened by threaded connection after passing the connecting pin shaft through the matching hole, thereby realizing a detachable connection with the circular saw blade 23, which is convenient for installation and maintenance.

[0071] Furthermore, the spray assembly 22 includes a cutting fluid storage tank 222, a cutting fluid pump 221, a fluid supply pipe 223, a distribution valve 224, and multiple spray heads 225, which are connected in sequence. The cutting fluid pump 221 pumps the cutting fluid in the cutting fluid storage tank 222 upward to the fluid supply pipe 223, and distributes it to the multiple spray heads 225 through the distribution valve 224, thereby distributing the cutting fluid.

[0072] Furthermore, the spray head 225 is located inside the cutting shield 21 , and at least one spray head 225 is installed directly above each circular saw blade 23 , thereby achieving cooling and lubrication of each circular saw blade 23 and extending the service life of the circular saw blade 23 .

[0073] like Figure 1 、 Figure 2 、 Figure 5As shown, the dust recovery device 3 includes a dust protection assembly 31, a dust removal pipe 32, a dust storage assembly 33, a dustproof net 34, and a vacuum assembly 35. One end of the dust removal pipe 32 is connected to the dust protection assembly 31, and the other end of the dust removal pipe 32 is connected to the dust storage assembly 33. The dust storage assembly 33 is connected to the vacuum assembly 35 through the dustproof net 34.

[0074] The dust recovery device 3 provided by the present invention covers the dust and waste generated by cutting through the dust protection component 31. Under the negative pressure of the vacuum component 35, the dust and waste enter the dust storage component 33 through the dust removal pipe 32, thereby realizing effective recovery and control of dust and waste, solving the problem of properly handling the dust and waste generated by on-site cutting of wind turbine blades, and avoiding pollution to the local environment.

[0075] Furthermore, the dust protection assembly 31 is composed of a dust protection cover 311 and a protection curtain 312. A plurality of protection curtains 312 are arranged in the blade transmission direction. By blocking the cutting dust and waste multiple times, the dust and waste can be effectively prevented from flying into the external environment and polluting the air.

[0076] Furthermore, the top of the dust shield 311 is connected to the cutting shield 21, and the bottom of the dust shield 311 is sealed with the support stand 11, thereby sealing the dust and waste in the dust shield 311 and the cutting shield 21, further preventing the dust and waste from flying into the external environment and polluting the air.

[0077] Furthermore, dust conveying ports are provided on the side and bottom of the dust protective cover 311, one end of the dust removal pipe 32 is connected to the side and bottom of the dust protective cover 311 through a snap-on quick-connect joint, and the other end of the dust removal pipe 32 is connected to the dust storage assembly 33 through a snap-on quick-connect joint.

[0078] Furthermore, the dust removal pipe 32 is a three-way hose, preferably a polyethylene hose, and the dust removal pipe 32 is designed to be a flexible connection. Through the connection method of the rigid dust protection cover 311, the flexible dust removal pipe 32 and the rigid dust storage assembly 33, the natural frequency of the blade conveying and fixing device 1 and the blade cutting device 2 can be reduced, thereby reducing the vibration and noise generated by the cutting blades and improving the comfort of the working environment.

[0079] Furthermore, the dust storage assembly 33 is a closed hexagonal structure.

[0080] Furthermore, the dust storage assembly 33 is connected to the vacuum assembly 35 via a dustproof net 34 to prevent dust and waste in the dust storage assembly 33 from entering the vacuum assembly 35 .

[0081] like Figure 1 、 Figure 2 、 Figure 6 As shown, the control device 4 includes a control box 46, a microcontroller 41 and a signal conditioner 42, a power supply 43, a switch element 44 and a control and power cable 45. The microcontroller 41 is used to receive signals and send control instructions.

[0082] Furthermore, the blade cutting device 2 and the dust recovery device 3 are both connected to the control device 4 , and the control device 4 jointly controls the coordinated operation of the blade cutting device 2 and the dust recovery device 3 .

[0083] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0084] 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 the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0085] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0086] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0087] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A wind turbine blade on-site cutting environmental protection equipment, characterized in that: include: a blade conveying and fixing device capable of conveying blades and / or fixing blades; a blade cutting device, mounted on the blade conveying and fixing device, capable of cutting the blade; a dust recovery device, connected to the blade conveying and fixing device, capable of recovering dust and waste generated by cutting the blades; The control device is electrically connected to the blade cutting device and the dust recovery device.

2. The on-site cutting environmental protection equipment for wind turbine blades according to claim 1 is characterized in that: The blade conveying and fixing device includes: Support stand; A roller bar is connected to the support frame for rotation along the blade conveying direction; The blade clamping and fixing assembly is installed on the support stand and is used for clamping and fixing the blade.

3. The on-site cutting environmental protection equipment for wind turbine blades according to claim 2 is characterized in that: The blade clamping and fixing assembly includes: Fixed plate; an adjusting connecting rod, the end of which is mounted on the fixing plate; A blade clamping block is installed on the adjusting connecting rod and can clamp and fix the blade; A locking nut is threadedly connected to the adjusting connecting rod and is used to fix the blade clamp.

4. The on-site cutting environmental protection equipment for wind turbine blades according to claim 1 is characterized in that: The blade cutting device comprises: annular support rod; A plurality of circular saw blades are evenly distributed on the annular support rod and fixedly connected to the annular support rod; The cutting drive assembly can drive the plurality of circular saw blades to rotate.

5. The on-site cutting environmental protection equipment for wind turbine blades according to claim 4 is characterized in that: The blade cutting device also includes: Fixed rod; A rotating connecting rod, one end of which is connected to the fixed rod and the other end of which is connected to the annular support rod; a spray assembly, for spraying cutting fluid onto the circular saw blade; The cutting protection cover is sleeved on the outside of the annular support rod, the circular saw blade and the cutting drive assembly.

6. The on-site cutting environmental protection equipment for wind turbine blades according to claim 5 is characterized in that: The spray assembly comprises: Cutting fluid storage tank; a liquid supply pipe, one end of which is connected to the cutting fluid storage tank; a distribution valve, connected to the other end of the liquid supply pipe, for distributing cutting fluid; A spray head is installed on the upper part of the circular saw blade; The cutting fluid pump is used to pump the cutting fluid in the cutting fluid storage tank to the spray head.

7. The on-site cutting environmental protection equipment for wind turbine blades according to claim 1 is characterized in that: The dust recovery device comprises: Dust protection components; A dust removal pipe, one end of which is connected to the dust protection component; a dust storage assembly, connected to the other end of the dust removal pipe, for storing dust and waste generated during the cutting process; a vacuum assembly, connected to the dust storage assembly, to provide negative pressure for the dust storage assembly and the dust removal pipe; The dustproof net is located between the dust storage component and the vacuum component and is used to isolate dust and waste.

8. The on-site cutting environmental protection equipment for wind turbine blades according to claim 7 is characterized in that: The dust removal pipe is a three-way hose, which is connected to the bottom and side of the dust protection component respectively.

9. The on-site cutting environmental protection equipment for wind turbine blades according to claim 7 or 8, characterized in that: The dust removal pipe is connected to the dust protection component and the dust storage component via quick-connect connectors.

10. The on-site cutting environmental protection equipment for wind turbine blades according to claim 7 or 8, characterized in that: The dust protection assembly comprises: Dust protection hood; A plurality of protective curtains are arranged along the conveying direction of the blades and form a plurality of enclosed spaces with the dust protective cover.

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