A wind turbine tower flange support device and a support method

Abstract

The application discloses a wind turbine tower flange supporting device and a supporting method. The device comprises a supporting frame, hydraulic oil cylinders, oil cylinder fixing assemblies, rubber assemblies, a hydraulic pump, a hydraulic pump fixing plate, hydraulic pipelines, a manual ball valve and steel wires. The hydraulic oil cylinders are fixedly installed on the free ends of the supporting frame through the oil cylinder fixing assemblies respectively, the oil cylinder arms of the hydraulic oil cylinders can be telescopically extended along the length direction of the oil cylinder arms, the end portions of the oil cylinder arms are provided with the rubber assemblies, the hydraulic pump is arranged at the bottom end of the supporting frame through the hydraulic pump fixing plate, is connected with the hydraulic oil cylinders close to the hydraulic pump through the hydraulic pipelines, the hydraulic pipelines are sequentially connected between the hydraulic oil cylinders, the hydraulic pipelines are fixed on the supporting frame, the manual ball valve is arranged at the hydraulic pump, and the free ends of the supporting frame are connected with the bolt holes of the tower flange through the steel wires. The application can correct the severely deformed tower flange, can be repeatedly used, has high universality and can save cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind turbine tower flange support anti-deformation, in particular to a wind turbine tower flange support device and a support method. BACKGROUND

[0002] Due to the large size and weight of the tower, the deformation of the tower needs to be strictly controlled during the storage and long-distance transportation to avoid the installation problems caused by the deformation of the tower. In order to prevent further deformation, a corresponding fixed anti-deformation device needs to be used to prevent the deformation of the tower.

[0003] However, the traditional tower Mi character support in the prior art prevents the deformation of the tower flange by bolt friction, which may lose the ability to prevent deformation due to the worker's torque not being tightened or the vibration during the transportation of the tower, and the universality is not high, which increases the cost. SUMMARY

[0004] The present application aims to solve the problems in the prior art and provides a wind turbine tower flange support device and a support method. The same principle of oil pressure is used to support the flange with a hydraulic oil cylinder to prevent deformation. It is not only useful for newly produced tower flanges, but also can correct the deformation of flanges that have been stored for a period of time. In addition, it can be reused, has high universality, and reduces the use cost.

[0005] To achieve the above purpose, the technical scheme provided by the present application is as follows: a wind turbine tower flange support device, comprising a support frame, a hydraulic oil cylinder, an oil cylinder fixing assembly, a rubber assembly, a hydraulic pump, a hydraulic pump fixing plate, a hydraulic pipeline, a manual ball valve and a steel wire rope; the hydraulic oil cylinder has a plurality of oil cylinder fixing assemblies respectively fixed and installed on each free end of the support frame, and the oil cylinder arm of the hydraulic oil cylinder can be extended and retracted along its length direction, the end of the oil cylinder arm is provided with a rubber assembly, the hydraulic pump is arranged at the bottom end of the support frame through the hydraulic pump fixing plate, and is connected with the adjacent hydraulic oil cylinder through the hydraulic pipeline, the plurality of hydraulic oil cylinders are connected in sequence through the hydraulic pipeline, and the hydraulic pipeline is fixed on the support frame, the manual ball valve is arranged at the hydraulic pump, and each free end of the support frame is connected with each bolt hole of the tower flange through the steel wire rope.

[0006] Further, the support frame comprises an oil cylinder support arm and a reinforcing beam, the oil cylinder support arm has a plurality of roots arranged along the same center and connected as a whole, the reinforcing beam is installed between the two oil cylinder support arms to strengthen the strength of the oil cylinder support arm, the end of each oil cylinder support arm is provided with a rope passing hole for the steel wire rope to pass through, the oil cylinder support arm is an H-shaped steel support arm, and the H-shaped steel support arm has two concave spaces for installing the hydraulic pipeline.

[0007] Further, the oil cylinder fixing assembly comprises a first oil cylinder fixing plate, an oil cylinder base and a fixing clamp; the oil cylinder base and the first oil cylinder fixing plate are both mounted on the oil cylinder support arm, the oil cylinder base is close to the center of the support frame, the first oil cylinder fixing plate is close to the free end of the support frame, the bottom of the hydraulic oil cylinder is supported by the oil cylinder base, the oil cylinder arm of the hydraulic oil cylinder is oriented towards the free end of the support frame, and the fixing clamp is mounted on the first oil cylinder fixing plate to clamp and fix the hydraulic oil cylinder.

[0008] Further, the hydraulic pump fixing plate is connected with the oil cylinder support arm at the bottom end of the support frame, the hydraulic pump fixing plate is provided with a plurality of corresponding bolt holes on the hydraulic pump, and the hydraulic pump is connected with the hydraulic pump fixing plate by penetrating the bolt holes of the hydraulic pump and the hydraulic pump fixing plate through a bolt assembly.

[0009] Further, an internally recessed threaded hole is formed at the end of the oil cylinder arm of the hydraulic oil cylinder, and the outer side of the end of the oil cylinder arm is chamfered.

[0010] Further, the rubber assembly comprises a rubber base and a rubber piece, the bottom of the rubber base is provided with a threaded column matched with the threaded hole of the hydraulic oil cylinder, the top of the rubber base is provided with at least two bolt holes, the rubber piece is provided with at least two countersunk bolt holes, the rubber piece and the rubber base are connected through the countersunk bolt, and the top surface of the rubber piece is arc-shaped.

[0011] Further, the hydraulic pipeline comprises a pipe clamp, a stainless steel pipeline, a stainless steel three-way pipeline and a braided hose, the stainless steel pipeline is mounted along the internally recessed space of the oil cylinder support arm through the pipe clamp, the braided hose is mounted along the reinforcing beam through the pipe clamp, and the stainless steel pipeline and the braided hose are connected through the stainless steel three-way pipeline.

[0012] Further, a hydraulic gauge is further included, which is mounted in the hydraulic pipeline to display the oil pressure of the hydraulic pipeline.

[0013] Further, the hydraulic pump is connected with 220V alternating voltage, and the hydraulic pump is communicatively connected with a control handle for selecting to control the pressurization or pressure relief of the hydraulic pump.

[0014] A wind turbine tower flange support method based on the wind turbine tower flange support device, comprising the following steps:

[0015] S1, place the assembled wind turbine tower flange support device at the center of the tower flange of the wind turbine;

[0016] S2, connect the power line of the hydraulic pump to the generator, open the manual ball valve after starting the generator, rotate the control handle of the hydraulic pump to pressurize the hydraulic pipeline, and record the real-time pointer data of the hydraulic gauge;

[0017] S3, whenever the hydraulic gauge rotates by one big scale, stop pressurizing, and measure the real-time ovality of the tower flange at the neck of the tower flange flange, and record the change of the ovality;

[0018] S4, repeat step S3, when the ovality of the tower flange reaches the preset lower limit value, control the hydraulic pump to gradually pressurize, stop pressurizing when the hydraulic gauge pointer rotates by one small scale, and measure the ovality of the flange again, repeat the above operation until the ovality of the tower flange reaches the preset intermediate value, and stop pressurizing;

[0019] S5, close the manual ball valve and the hydraulic pump, and write the hydraulic value and time on the section steel near the hydraulic gauge with a marker pen;

[0020] S6, connect and fix the free end of the support frame of the wind turbine tower flange support device to the bolt hole of the tower flange with a steel wire rope;

[0021] S7, periodically observe the reading of the hydraulic gauge pointer at a preset period, record the reading and date below the last record with a marker pen, if the hydraulic gauge pointer value becomes smaller, measure whether the ovality of the flange meets the requirements again, if it meets the requirements, the hydraulic pipeline does not need to be pressurized, and if it does not meet the requirements, the hydraulic pipeline needs to be pressurized again by the hydraulic pump;

[0022] S8, before hoisting the tower flange, cut the steel wire rope, open the hydraulic pump and the manual ball valve, rotate the control handle of the hydraulic pump to the pressure relief state, take out the wind turbine tower flange support device after the hydraulic gauge pointer returns to zero, and complete the support and deformation prevention treatment of the tower flange.

[0023] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0024] The present application supports the tower flange by hydraulic drive, and can monitor the pressure index of the hydraulic pump to further adjust the ovality of the supported tower flange in a small amount. It is not only useful for newly produced tower flanges, but also can still correct the tower flanges that have been stored for a period of time and have serious deformation. At the same time, the present application can flexibly adjust the radius of the support through the extension and retraction of the oil cylinder arm of the hydraulic oil cylinder, is suitable for tower flanges of different diameters, can be repeatedly used, and reduces production cost. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structural schematic view of the wind turbine tower flange support device.

[0026] Figure 2 It isFigure 1 Local enlarged structural view at II.

[0027] Figure 3 Structural front view of support frame.

[0028] Figure 4 Structural view of oil cylinder fixing assembly.

[0029] Figure 5 Structural view of connection between oil cylinder fixing assembly and hydraulic pump fixing plate.

[0030] Figure 6 Structural view of hydraulic cylinder.

[0031] Figure 7 Structural view of Figure 6 Local enlarged structural view at II.

[0032] Figure 8 Structural view of rubber base.

[0033] Figure 9 Structural view of rubber part.

[0034] Figure 10 Structural view of hydraulic pipeline.

[0035] Figure 11 Structural view of installation of wind turbine tower flange support device. DETAILED DESCRIPTION

[0036] The application will be further described in connection with specific embodiments.

[0037] Referring to Figures 1 to 10 The wind turbine tower flange support device provided by the embodiment includes a support frame 1, hydraulic cylinders 2, an oil cylinder fixing assembly, a rubber assembly, a hydraulic pump 6, a hydraulic pump fixing plate, a hydraulic pipeline 7, a manual ball valve 10, a hydraulic gauge 8, and a steel wire rope 11.

[0038] The hydraulic cylinders 2 are fixedly installed on the free ends of the support frame 1 through the oil cylinder fixing assembly, and the oil cylinder arms of the hydraulic cylinders 2 can be extended and retracted along the length direction, the end of the oil cylinder arm is provided with the rubber assembly, the hydraulic pump 6 is arranged at the bottom end of the support frame 1 through the hydraulic pump fixing plate 14, and is connected with the hydraulic cylinders 2 close to it through the hydraulic pipeline 7, the hydraulic cylinders 2 are sequentially connected through the hydraulic pipeline 7, and the hydraulic pipeline 7 is fixed on the support frame 1, the manual ball valve 10 is arranged at the hydraulic pump 6, the free ends of the support frame 1 are connected with the bolt holes of the tower flange through the steel wire rope 11, and the hydraulic gauge 8 is installed in the hydraulic pipeline 7 to display the oil pressure of the hydraulic pipeline 7.

[0039] The support frame 1 comprises a plurality of oil cylinder support arms 101 arranged along the same center and connected as a whole, and a reinforcing beam 102 installed between two oil cylinder support arms 101 for reinforcing the strength of the oil cylinder support arms 101. The end of each oil cylinder support arm 101 is provided with a rope passing hole 103 for the steel wire rope 11 to pass through. The oil cylinder support arm 101 is a hot-rolled H-shaped steel support arm, which can effectively support the hydraulic oil cylinder 2 and is not easy to deform. The hot-rolled H-shaped steel support arm has two concave spaces for installing hydraulic pipelines 7.

[0040] The oil cylinder fixing assembly comprises a first oil cylinder fixing plate 12, an oil cylinder base 13 and a fixing clamp 5. The oil cylinder base 13 and the first oil cylinder fixing plate 12 are both installed on the oil cylinder support arm 101, and the oil cylinder base 13 is close to the center of the support frame 1, and the first oil cylinder fixing plate 12 is close to the free end of the support frame 1. The bottom of the hydraulic oil cylinder 2 is supported by the oil cylinder base 13, and the oil cylinder arm of the hydraulic oil cylinder is oriented in the same direction as the free end of the support frame 1. The fixing clamp 5 is installed on the first oil cylinder fixing plate 12 to clamp and fix the hydraulic oil cylinder 2.

[0041] The hydraulic pump fixing plate 14 is connected with the oil cylinder support arm 101 at the bottom end of the support frame 1. The hydraulic pump fixing plate 14 is provided with a plurality of corresponding bolt holes on the hydraulic pump 6. The bolt assembly passes through the bolt holes of the hydraulic pump 6 and the hydraulic pump fixing plate 14 to connect the hydraulic pump 6 with the hydraulic pump fixing plate 14.

[0042] A concave threaded hole 15 is formed at the end of the oil cylinder arm of the hydraulic oil cylinder, and a chamfer 16 is provided on the outer side of the end of the oil cylinder arm. The rubber assembly comprises a rubber base 3 and a rubber piece 4. The bottom of the rubber base 3 is provided with a threaded column 301 matched with the threaded hole 15 of the hydraulic oil cylinder. The top of the rubber base 3 is provided with at least two bolt holes 302. The rubber piece 4 is provided with at least two countersunk bolt holes 401. The rubber piece 4 and the rubber base 3 are connected by countersunk bolts. The top surface of the rubber piece 4 is an arc surface.

[0043] The hydraulic pipeline 7 comprises a pipe clamp 9, a stainless steel pipeline 701, a stainless steel tee pipeline 702 and a braided hose 703. The stainless steel pipeline 701 is installed along the concave space of the oil cylinder support arm 101 by the pipe clamp 9. The braided hose 703 is installed along the reinforcing beam 102 by the pipe clamp 9. The stainless steel pipeline 701 and the braided hose 703 are connected by the stainless steel tee pipeline 702.

[0044] The hydraulic pump protection level is IP55, the hydraulic pump 6 is connected with a generator (not shown in the figure), and 220V alternating voltage is provided by the generator. The hydraulic pump is communicatively connected with a control handle (not shown in the figure) for selecting control of the hydraulic pump pressurization or pressure relief.

[0045] Referring to Figure 11 As shown in the figure, the wind turbine tower flange support method based on the wind turbine tower flange support device of embodiment 1 comprises the following steps:

[0046] S1, place the assembled wind turbine tower flange support device in the center of the tower flange of the wind turbine;

[0047] S2, connect the power supply line of the hydraulic pump to the generator, start the generator, open the manual ball valve, rotate the control handle of the hydraulic pump to pressurize the hydraulic pipeline, and record the real-time pointer data of the hydraulic gauge;

[0048] S3, whenever the hydraulic gauge rotates one large scale, stop pressurizing, and measure the real-time ovality of the tower flange at the neck of the tower flange, and record the change of the ovality;

[0049] S4, repeat step S3, when the ovality of the tower flange reaches the preset lower limit value, control the hydraulic pump to gradually pressurize, when the hydraulic gauge pointer rotates one small scale, stop pressurizing and measure the flange ovality again, repeat the above operation, until the ovality of the tower flange reaches the preset intermediate value, stop pressurizing;

[0050] S5, close the manual ball valve and the hydraulic pump, and write the hydraulic value and time on the section steel near the hydraulic gauge with a marker pen;

[0051] S6, connect and fix the free ends of the support frames of the wind turbine tower flange support device with the bolt holes of the tower flange with steel wire ropes;

[0052] S7, periodically observe the hydraulic gauge pointer reading at a preset period, record the reading and date below the last recorded value with a marker pen, if the hydraulic gauge pointer value becomes smaller, measure the ovality of the flange again to see if it meets the requirements, if it meets the requirements, there is no need to pressurize the hydraulic pipeline, if it does not meet the requirements, the hydraulic pipeline needs to be pressurized again by the hydraulic pump;

[0053] S8, before hoisting the tower flange, cut the steel wire ropes, open the hydraulic pump and the manual ball valve, rotate the hydraulic pump control handle to the pressure relief state, and take out the wind turbine tower flange support device after the hydraulic gauge pointer returns to zero, to complete the support and anti-deformation treatment of the tower flange.

[0054] The above-described embodiments are only preferred embodiments of the present application, and are not intended to limit the scope of the present application. Any changes made in the shape, principle, and the like of the present application should be included in the scope of the present application.

Claims

1. A wind turbine tower flange support device, characterized in that: The jackup cam is connected with the hydraulic cylinder to form a hydraulic cylinder, and the hydraulic cylinder is connected with the hydraulic cylinder to form a hydraulic cam. The hydraulic cylinder is connected with the hydraulic cylinder to form a hydraulic cam. The hydraulic cylinder is connected with the hydraulic cylinder to form a hydraulic cam. The hydraulic cylinder is connected with the hydraulic cylinder to form a hydraulic cam. The oil cylinder support arm and the reinforcing beam, the oil cylinder support arm has multiple arms arranged circumferentially along the same center of a circle and connected as a whole, the reinforcing beam is installed between the two oil cylinder support arms to strengthen the strength of the oil cylinder support arm, and the end of each oil cylinder support arm is provided with a rope hole for passing the wire rope, the oil cylinder support arm is an H-shaped steel support arm, and the H-shaped steel support arm has two concave spaces for installing hydraulic pipelines; a concave threaded hole is formed at the end of the oil cylinder arm of the hydraulic cylinder, and a chamfer is provided on the outer side of the end of the oil cylinder arm; the rubber assembly includes a rubber base and a rubber part, the bottom of the rubber base is provided with a threaded column, the threaded column matches the threaded hole of the hydraulic cylinder, the top of the rubber base is provided with at least two bolt holes, the rubber part is provided with at least two countersunk bolt holes, the rubber part and the rubber base are connected by countersunk bolts, and the top surface of the rubber part is an arc surface.

2. A wind turbine tower flange support device according to claim 1, characterized in that: The oil cylinder fixing assembly includes a first oil cylinder fixing plate, an oil cylinder base and a fixing clamp; the oil cylinder base and the first oil cylinder fixing plate are both installed on the oil cylinder support arm, and the oil cylinder base is close to the center of the support frame, the first oil cylinder fixing plate is close to the free end of the support frame, the bottom of the hydraulic cylinder is supported by the oil cylinder base, the cylinder arm of the hydraulic cylinder and the free end of the support frame are oriented in the same direction, and the fixing clamp is installed on the first oil cylinder fixing plate to clamp the hydraulic cylinder.

3. The wind turbine tower flange support device according to claim 1, characterized in that: The hydraulic pump fixing plate is connected to the oil cylinder support arm located at the bottom end of the support frame. The hydraulic pump fixing plate and the hydraulic pump are provided with a plurality of corresponding bolt holes. The hydraulic pump and the hydraulic pump fixing plate are connected by passing the bolt assembly through the bolt holes of the hydraulic pump and the hydraulic pump fixing plate.

4. The wind turbine tower flange support device according to claim 1, characterized in that: The hydraulic pipeline includes a pipe clamp, a stainless steel pipeline, a stainless steel three-way pipeline and a braided hose. The stainless steel pipeline is installed along the concave space of the cylinder support arm through the pipe clamp, and the braided hose is installed along the reinforcing beam through the pipe clamp. The stainless steel pipeline and the braided hose are connected through the stainless steel three-way pipeline.

5. The wind turbine tower flange support device according to claim 1, characterized in that: The utility model also comprises a hydraulic pressure gauge, which is installed in the hydraulic pipeline and is used for displaying the oil pressure of the hydraulic pipeline.

6. The wind turbine tower flange support device according to claim 1, characterized in that: The hydraulic pump is connected to a 220V AC voltage, and the hydraulic pump is communicatively connected to a control handle for selectively controlling the hydraulic pump to pressurize or release pressure.

7. A method for supporting a tower flange of a wind turbine generator set based on the wind turbine generator set tower flange supporting device according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1. Place the assembled wind turbine tower flange support device on the center of the wind turbine tower flange; S2. Connect the power cord of the hydraulic pump to the generator. After starting the generator, open the manual ball valve, turn the control handle of the hydraulic pump to pressurize the hydraulic pipeline, and record the real-time pointer data of the hydraulic gauge. S3. Whenever the hydraulic gauge rotates one notch, stop pressurizing and measure the ovality of the tower flange at the neck of the tower flange in real time, and record the change in ovality. S4, repeating step S3, when the ovality of the tower flange reaches a preset lower limit, controlling the hydraulic pump to gradually pressurize, when the hydraulic gauge pointer rotates one small grid, stopping pressurization and measuring the flange ovality again, repeating the above operation until the ovality of the tower flange reaches a preset intermediate value, stopping pressurization; S5. Close the manual ball valve and hydraulic pump, and write the hydraulic pressure value and time on the steel near the hydraulic gauge with a marker; S6. Use steel wire ropes to connect and secure the free ends of the support frame of the wind turbine tower flange support device to the bolt holes of the tower flange; S7. Observe the hydraulic pressure gauge pointer reading at predetermined intervals and record the reading and date with a marker below the last record. If the hydraulic pressure gauge pointer value decreases, measure the flange ovality again to see if it meets the requirements. If it does, there is no need to pressurize the hydraulic line. If it does not, pressurize the hydraulic line again using the hydraulic pump. S8. Before hoisting the tower flange, cut the wire rope, open the hydraulic pump and manual ball valve, turn the hydraulic pump control handle to the pressure relief state, and remove the wind turbine tower flange support device after the hydraulic gauge pointer returns to zero to complete the support and anti-deformation treatment of the tower flange.

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