A wind turbine wire uncabling device

Abstract

The application discloses a kind of wind power generator wire cable releasing device, including the capsule body fixed on the outer surface of cable, the capsule body is fixed with cable, the lower end of the capsule body is connected with cooling liquid pool by suction tube, and the inside of the cooling liquid pool is equipped with cooling liquid.The application sets up capsule body on the periphery of cable, and during winding cable, different cables are extruded mutually, capsule body is extruded, and the cooling liquid in the capsule body is discharged into cooling liquid tank.Capsule body plays a protective role on cable, avoiding the damage of cable insulation layer caused by friction between cables.When it is necessary to release cable, the pawl is disengaged from the ratchet, the capsule body is quickly reset under the action of its torsion, and the capsule body drives the cable to quickly release the cable.At the same time, negative pressure is generated in the capsule body, the capsule body sucks in cooling liquid, and the rapid cooling of the cable is realized.

Description

Technical Field

[0001] This invention relates to a wind turbine power cable uncoupling device, belonging to the technical field of wind power auxiliary equipment. Background Technology

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. A wind turbine generally consists of components such as a wind turbine, a generator, a deflector, a tower, a speed limiting safety mechanism, and an energy storage device. The working principle of a wind turbine is relatively simple: the wind turbine rotates under the action of wind, converting the kinetic energy of the wind into the mechanical energy of the wind turbine shaft, and the generator rotates under the drive of the wind turbine shaft to generate electricity.

[0003] When a wind turbine is in operation, it may encounter a sudden change in wind direction. At this time, the wind turbine nacelle will yaw, and the cable connected to the nacelle will also twist. This process is called cable winding. The number of cable windings is read by the cable twisting sensor and fed back to the wind turbine yaw control system. The control system manipulates the unwinding device to make the nacelle yaw in the opposite direction by the same number of windings, and the cable returns to the normal connection state. This process is called unwinding.

[0004] Existing wind turbine uncoupling devices typically cannot automatically and efficiently complete the uncoupling process, and cannot restore the cable to its normal connection state in a timely manner.

[0005] In addition, during the winding and unwinding process, the insulation layer of the cable is easily damaged due to friction or the internal temperature of the cable is too high, which can easily cause short circuits and other faults, posing certain safety hazards. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a wind turbine power line uncoupling device to solve the technical problems existing in the prior art.

[0007] The technical solution adopted by the present invention is as follows: a wind turbine power cable uncoupling device, comprising a capsule fixed to the outer surface of the cable, the capsule being fixed to the cable, and a coolant pool connected to the lower end of the capsule via a suction tube, the coolant pool being filled with coolant.

[0008] Preferably, the shape of the capsule is spring-shaped.

[0009] Preferably, a ratchet is coaxially fixed to the outer periphery of the upper end of the cable, and an electric push rod arranged radially along the inner sidewall of the tower is fixed to the inner sidewall of the tower. A pawl that cooperates with the ratchet is fixed to the telescopic end of the electric push rod.

[0010] Preferably, the electric push rod is electrically connected to the wind power yaw control system via a controller.

[0011] Preferably, the cross-section of the capsule is rectangular.

[0012] Preferably, the number of the capsules is set to one or more and they are fixed sequentially along the outer periphery of the cable from top to bottom.

[0013] Preferably, another ratchet is fixed to the upper end of the cable, and another electric push rod arranged radially is fixed to the inner side wall of the tower. A pawl that cooperates with the other ratchet is fixed to the telescopic end of the other electric push rod; the two ratchets are installed in opposite directions.

[0014] The beneficial effects of this invention are as follows: Compared with the prior art, this invention provides a bladder around the cable. During the cable winding process, as different cables are squeezed against each other, the bladder is compressed, and the coolant inside the bladder is discharged into the coolant tank. The bladder protects the cable and prevents damage to the cable insulation layer caused by friction between the cables. When it is necessary to untie the cable, the pawl disengages from the ratchet, and the bladder quickly resets under its own torque. The bladder drives the cable to untie quickly, and at the same time, a negative pressure is generated inside the bladder, which draws in coolant to achieve rapid cooling of the cable. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] The reference numerals in the accompanying drawings include: 1. Coolant pool; 2. Suction tube; 3. Cable; 4. Bag body; 5. Ratchet; 6. Pawl; 7. Electric push rod.

[0018] Example 1: A wind turbine power line uncoupling device, such as Figure 1 As shown, the device includes a capsule 4 fixed to the outside of the cable 3. The capsule 4 is spring-shaped and has a rectangular cross-section. The capsule 4 is fixed to the cable 3. The lower end of the capsule 4 is connected to a coolant pool 1 through a suction tube 2. The coolant pool 1 is filled with coolant.

[0019] like Figure 1 As shown, a ratchet 5 is coaxially fixed to the outer periphery of the upper end of the cable 3, and an electric push rod 7 arranged radially is fixed to the left inner side wall of the tower. A pawl 6 that cooperates with the ratchet 5 is fixed to the telescopic end of the electric push rod 7. The electric push rod 7 is electrically connected to the wind power yaw control system through the controller.

[0020] like Figure 1As shown, another ratchet 5 is fixed to the upper end of the cable 3, and another electric push rod 7 arranged radially is fixed to the right inner side wall of the tower. A pawl 6 that cooperates with another ratchet 5 is fixed to the telescopic end of the other electric push rod 7; the two ratchet 5 are installed in opposite directions.

[0021] In this embodiment, the number of capsules 4 is set to one or more and they are fixed to the outer periphery of the cable 3 from top to bottom along the cable 3.

[0022] The specific implementation process is as follows: During the cable winding process: the lower end of cable 3 is fixed, and the upper end of cable 3 rotates with the nacelle. During the rotation of the nacelle, the cable twists and the different cables 3 squeeze each other, the capsule 4 is squeezed, and the coolant inside the capsule 4 is discharged into the coolant tank. The capsule 4 protects the cable 3 and prevents damage to the insulation layer of the cable 3 caused by friction between the cables 3. The electric push rod 7 on the left drives the pawl 6 below to engage with the ratchet 5 below. The cable 3 can only rotate clockwise, overcoming the elasticity of the capsule 4 itself, so that the cable 3 can be wound smoothly. During this process, the electric push rod 7 on the right drives the pawl 6 above to disengage from the ratchet 5 above. If the cable winding direction is counterclockwise, then similarly, the electric push rod 7 on the right drives the upper pawl 6 to engage with the upper ratchet 5, and the electric push rod 7 on the left drives the lower pawl 6 to disengage from the lower ratchet 5.

[0023] When it is necessary to untie the cable, the electric push rod 7 on the left drives the pawl 6 below to disengage from the ratchet 5 below. The bladder 4 quickly resets under its own torque. The bladder 4 drives the cable 3 to untie quickly. At the same time, a negative pressure is generated inside the bladder 4, and the bladder 4 draws in coolant to achieve rapid cooling of the cable 3.

[0024] In this embodiment, the principle by which the capsule 4 draws in coolant is similar to the principle by which an ink cartridge pen draws in ink, that is, the principle of siphon effect generated by atmospheric pressure.

[0025] The purpose of setting multiple bladders 4 from top to bottom is to better ensure that the inside of the bladders 4 is filled with coolant and optimize the cooling effect.

[0026] The electric push rod 7 is electrically connected to the wind power yaw control system via a controller, and the wind power yaw control system automatically controls the movement of the electric push rod 7.

[0027] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of protection of the claims.

Claims

1. A device for uncoiling a wind turbine power line, characterized in that: Includes a capsule fixed to the outside of the cable, the capsule being fixed to the cable, and a coolant pool connected to the lower end of the capsule via a suction tube, the coolant pool being filled with coolant; The capsule is spring-shaped. A ratchet is coaxially fixed to the outer periphery of the upper end of the cable, and an electric push rod arranged radially along the inner side wall of the tower is fixed to the inner side wall of the tower. A pawl that cooperates with the ratchet is fixed to the telescopic end of the electric push rod. The electric push rod is electrically connected to the wind power yaw control system via a controller; The cross-section of the capsule is rectangular; The number of the capsules is set to one or more and they are fixed sequentially along the outer periphery of the cable from top to bottom; Another ratchet is fixed to the upper end of the cable, and another electric push rod arranged radially is fixed to the inner side wall of the tower. A pawl that cooperates with the other ratchet is fixed to the telescopic end of the other electric push rod; the two ratchets are installed in opposite directions. By setting a capsule around the cable, during the cable winding process, the pawl and ratchet engage, causing different cables to squeeze against each other. The capsule is compressed, and the coolant inside the capsule is discharged into the coolant pool. The capsule protects the cable and prevents damage to the cable insulation layer caused by friction between the cables. When it is necessary to untangle the cable, the pawl and ratchet disengage, and the capsule quickly resets under its own torque. The capsule drives the cable to untangle quickly. At the same time, a negative pressure is generated inside the capsule, and the capsule draws in coolant to achieve rapid cooling of the cable.

Images