A fan nacelle cover opening device and opening method thereof

Abstract

The present invention belongs to the field of power generation wind turbines, and specifically discloses a wind turbine nacelle cover opening device and an opening method thereof, comprising a fixed column, a nacelle cover opening mechanism and a control box, wherein the fixed column is used to be fixed on the bottom of the nacelle, the nacelle cover opening mechanism is installed on the fixed column and comprises a deflection cylinder seat, a deflection assembly and a jacking assembly, the deflection cylinder seat is installed on the top side of the fixed column, the deflection assembly comprises a first deflection cylinder and a second deflection cylinder, the second deflection cylinder is installed on the deflection cylinder seat, and the piston rod end of the second deflection cylinder is connected to the cylinder middle seat; the jacking assembly is used to lift the nacelle cover, and the jacking assembly comprises a jacking cylinder seat, a first jacking cylinder and a second jacking cylinder. The opening device of the present invention can conveniently open the nacelle cover of the wind turbine, the maintenance time is short, the nacelle cover of the wind turbine can be opened conveniently and economically, and there is no need to rent a large crane for land wind power, and there is no need to rent a large ship and an offshore crane for offshore wind power, and the use effect is good.

Description

Technical Field

[0001] The invention relates to the field of power generation wind turbines, and in particular to a wind turbine nacelle cover opening device and an opening method thereof. Background Art

[0002] Wind energy is a clean and pollution-free renewable energy source. It has been used by people for a long time, mainly through windmills to pump water and grind flour. With the continuous advancement of science and technology, wind power generation is currently the most efficient way to utilize wind energy. The basic principle is to convert the kinetic energy of wind into mechanical kinetic energy, and then convert the mechanical energy into electrical energy. The most common equipment used in wind power generation is the wind turbine, that is, a large wind turbine. In order to better utilize wind energy, the various components of large wind turbines are very large, heavy, and have high towers. Therefore, when the components in the wind turbine are aging, the wind turbine components need to be replaced and repaired. The problem encountered is how to open the nacelle cover.

[0003] Many old wind turbines in operation were not designed with how to conveniently open the engine cover. The general method is to rent a crane, but renting a large crane is expensive, occupies a large area, and sometimes requires the destruction of vegetation. To open the engine cover of an offshore wind turbine, it is also necessary to rent a large ship and an offshore crane, which is greatly affected by sea conditions and weather, and the maintenance time is long and the cost is high. Therefore, a convenient and economical wind turbine engine cover device and opening method are needed. Summary of the invention

[0004] The object of the present invention is to provide a fan nacelle cover opening device and an opening method thereof to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a wind turbine nacelle cover opening device, comprising a fixed column, a nacelle cover opening mechanism and a control box, wherein the fixed column is used to be fixed to the bottom of the nacelle, the nacelle cover opening mechanism is installed on the fixed column and comprises a deflection cylinder seat, a deflection assembly and a jacking assembly, the deflection cylinder seat is installed on the top side of the fixed column, the deflection assembly comprises a first deflection cylinder and a second deflection cylinder, the second deflection cylinder is installed on the deflection cylinder seat, and the piston rod end of the second deflection cylinder The first jacking cylinder and the first deflection cylinder are both mounted on the cylinder middle seat, one end of the first jacking cylinder is movably connected to the upper end of the cylinder middle seat through a hinge shaft, and the other end of the first jacking cylinder is connected to a cylinder connecting support.

[0006] Preferably, the bottom end of the first deflection oil cylinder is hinged to the lower end of the cylinder middle seat, and the piston rod end at the top end of the first deflection oil cylinder is movably connected to the cylinder connecting support.

[0007] Preferably, it also includes a cabin cover fixing frame, which is in an H shape and is installed on the cabin cover by screws.

[0008] Preferably, a support connection seat is provided at the lower part of the oil cylinder connection support, and the support connection seat is connected to the cabin cover fixing frame through the support connection seat.

[0009] Preferably, the control box is electrically connected to the deflection assembly and the lifting assembly.

[0010] The present invention also provides a method for opening the above-mentioned fan nacelle cover opening device, comprising the following steps:

[0011] S1: Lift the components of the opening device from the lifting holes in the cabin one by one into the cabin;

[0012] S2: Using the stress points in the cabin, install the fixed columns, deflection assembly and jacking assembly, and install the cabin cover fixing frame on the cabin cover with screws;

[0013] S3: Remove the fasteners connecting the engine cover and the engine room, and open the device to open it.

[0014] Preferably, the opening work performed by the opening device in S3 specifically includes: S31: the first lifting cylinder lifts the cabin cover vertically to a certain height, and the second lifting cylinder moves the cabin cover laterally to a suitable position; S32: the first deflection cylinder extends, the first lifting cylinder contracts, and the cabin cover is flipped to the side of the cabin, and the control box controls the cylinder to lock. After the cabin cover is opened, the components in the cabin can be hoisted and maintained.

[0015] Preferably, S32 also includes: step a: after the cargo in the cabin is hoisted, close the cabin cover according to the reverse steps above; step b: connect and fix the cabin cover to the cabin body with screws; step c: hoist the components included in the opening cover device in the cabin one by one from the cabin hoisting hole to the outside of the cabin to complete the work.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The opening device of the present invention can conveniently open the cabin cover of the wind turbine, and the maintenance time is short. The opening device is lifted into the cabin for installation by using a hoist in the cabin. The opening is achieved by the opening device, and the cabin cover of the wind turbine can be opened conveniently and economically without renting a large ship and an offshore crane. The use effect is good, and the opening method of the present invention is simple, which can improve the efficiency of replacing and repairing wind turbine components. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the opening device, the cabin cover and the cabin of the present invention;

[0019] Figure 2 The opening state of the present invention is shown as follows Figure 1 ;

[0020] Figure 3 The opening state of the present invention is shown as follows Figure 2 ;

[0021] Figure 4 This is a state diagram of the present invention using a hoist to lift the opening device into the cabin.

[0022] In the figure: 1. Fixed column; 2. Deflection cylinder seat; 3. First deflection cylinder; 4. Second deflection cylinder; 5. Cylinder middle seat; 6. Lifting cylinder seat; 7. First lifting cylinder; 8. Second lifting cylinder; 9. Control box; 10. Cylinder connecting support; 11. Cabin cover fixing bracket; 12. Cabin cover; 13. Support connecting seat. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of 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.

[0024] In the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. 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 cannot be understood as a limitation on the present invention.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] See also Figure 1-3The present invention provides a technical solution: a wind turbine nacelle cover opening device, comprising a fixed column 1, a nacelle cover opening mechanism and a control box 9, wherein the nacelle cover opening mechanism is mounted on the fixed column 1 and comprises a deflection cylinder seat 2, a deflection assembly and a jacking assembly, wherein the deflection cylinder seat 2 is mounted on the top side of the fixed column 1; the deflection assembly comprises a first deflection cylinder 3 and a second deflection cylinder 4, wherein the second deflection cylinder 4 is mounted on the deflection cylinder seat 2, and the piston rod end of the second deflection cylinder 4 is connected to the cylinder middle seat 5; the jacking ... The component is used to lift the cabin cover 12, and the lifting component includes a lifting cylinder seat 6, a first lifting cylinder 7 and a second lifting cylinder 8. The bottom end of the second lifting cylinder 8 is connected to the lower side of the fixed column 1 through the lifting cylinder seat 6, and the piston end of the top of the second lifting cylinder 8 is connected to the cylinder middle seat 5; the first lifting cylinder 7 and the first deflection cylinder 3 are both installed on the cylinder middle seat 5, one end of the first lifting cylinder 7 is movably connected to the upper end of the cylinder middle seat 5 through a hinge shaft, and the other end of the first lifting cylinder 7 is connected to a cylinder connecting support 10.

[0027] In this embodiment, the bottom end of the first deflection oil cylinder 3 is hinged to the lower end of the cylinder middle seat 5 , and the piston rod end at the top end of the first deflection oil cylinder 3 is movably connected to the cylinder connecting support 10 .

[0028] In this embodiment, the engine cover fixing frame 11 is in an H shape and is mounted on the engine cover 12 by screws.

[0029] In this embodiment, a support connection seat 13 is provided at the lower portion of the oil cylinder connection support 10 , and the oil cylinder connection support 10 is connected to the engine cover fixing frame 11 via the support connection seat 13 .

[0030] In this embodiment, the control box 9 is electrically connected to the deflection assembly and the lifting assembly.

[0031] The above-mentioned method for opening the fan nacelle cover opening device comprises the following steps:

[0032] S1: Lift the components of the opening device from the lifting holes in the cabin one by one into the cabin;

[0033] S2: Using the force points in the cabin, install the fixed column 1, the deflection assembly and the jacking assembly, and install the cabin cover fixing frame 11 on the cabin cover 12 by screws;

[0034] S3: Remove the fasteners connecting the engine cover 12 and the engine room, and open the device to open the device.

[0035] In this embodiment, the opening work performed by the opening device in S3 specifically includes: S31: the first lifting cylinder 7 lifts the cabin cover 12 vertically to a certain height, and the second lifting cylinder 8 moves the cabin cover 12 laterally to a suitable position; S32: the first deflection cylinder 3 extends, the first lifting cylinder 7 contracts, and the cabin cover 12 is flipped to the side of the cabin, and the control box 9 controls the cylinder to lock. After the cabin cover 12 is opened, the components in the cabin can be hoisted and maintained.

[0036] In this embodiment, S32 also includes: step a: after the cargo in the cabin is hoisted, close the cabin cover 12 according to the reverse steps above; step b: fix the cabin cover 12 to the cabin body with screws; step c: hoist the components included in the opening cover device in the cabin one by one from the cabin hoisting hole to the outside of the cabin to complete the work.

[0037] See also Figure 4 In this embodiment, in S1, the components of the opening device are hoisted from the cargo lifting hole in the cabin one by one into the cabin. Specifically, the hoist in the cabin is used to hoist the opening device into the cabin.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fan nacelle cover opening device, characterized in that: The invention comprises a fixed column (1), a cabin cover opening mechanism and a control box (9); the cabin cover opening mechanism is mounted on the fixed column (1) and comprises a deflection cylinder seat (2), a deflection assembly and a lifting assembly; the deflection cylinder seat (2) is mounted on the top side of the fixed column (1); the deflection assembly comprises a first deflection cylinder (3) and a second deflection cylinder (4); the second deflection cylinder (4) is mounted on the deflection cylinder seat (2); the piston rod end of the second deflection cylinder (4) is connected to the cylinder middle seat (5); the lifting assembly is used to lift the cabin cover (12); The lifting assembly comprises a lifting cylinder seat (6), a first lifting cylinder (7) and a second lifting cylinder (8); the bottom end of the second lifting cylinder (8) is connected to the lower side of the fixed column (1) through the lifting cylinder seat (6); the piston end at the top of the second lifting cylinder (8) is connected to the cylinder middle seat (5); the first lifting cylinder (7) and the first deflection cylinder (3) are both installed on the cylinder middle seat (5); one end of the first lifting cylinder (7) is movably connected to the upper end of the cylinder middle seat (5) through a hinge shaft; the other end of the first lifting cylinder (7) is connected to a cylinder connecting support (10).

2. A fan nacelle cover opening device according to claim 1, characterized in that: The bottom end of the first deflection oil cylinder (3) is hingedly mounted on the lower end of the cylinder middle seat (5), and the piston rod end at the top end of the first deflection oil cylinder (3) is movably connected to the cylinder connecting support (10).

3. The fan nacelle cover opening device according to claim 1, characterized in that: It also includes a cabin cover fixing frame (11), which is in an H shape and is mounted on the cabin cover (12) by means of screws.

4. A fan nacelle cover opening device according to claim 2, characterized in that: A support connection seat (13) is provided at the lower part of the oil cylinder connection support (10), and is connected to the cabin cover fixing frame (11) via the support connection seat (13).

5. The fan nacelle cover opening device according to claim 1, characterized in that: The control box (9) is electrically connected to the deflection assembly and the lifting assembly.

6. A method for opening a wind turbine nacelle cover opening device according to any one of claims 1 to 5, characterized in that: The steps include: S1: Lift the components of the opening device from the lifting holes in the cabin one by one into the cabin; S2: Using the stress points in the cabin, install the fixed column (1), the deflection assembly and the lifting assembly, and install the cabin cover fixing frame (11) on the cabin cover (12) by screws; S3: Remove the fasteners connecting the cabin cover (12) and the cabin, and open the device to start the opening operation.

7. A method for opening a wind turbine nacelle cover opening device according to claim 6, characterized in that: The opening operation performed by the opening device in S3 specifically includes: S31: the first lifting cylinder (7) lifts the cabin cover (12) vertically to a certain height, and the second lifting cylinder (8) moves the cabin cover (12) laterally to a suitable position; S32: the first deflection cylinder (3) extends, the first lifting cylinder (7) contracts, and the cabin cover (12) is flipped to the side of the cabin, and the control box (9) controls the cylinder to lock. After the cabin cover (12) is opened, the components in the cabin can be hoisted and maintained.

8. The method for opening a wind turbine nacelle cover opening device according to claim 7, characterized in that: S32 also includes: step a: after the cargo in the cabin is hoisted, closing the cabin cover (12) according to the reverse steps above; step b: screwing and fixing the cabin cover (12) to the cabin body; and step c: hoisting the components of the cabin opening device from the cabin hoisting holes one by one to the outside of the cabin to complete the work.

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