阅读说明：本技术 海上风电机组整体吊装用导向定位及缓冲装置 (Guiding, positioning and buffering device for integral hoisting of offshore wind turbine generator system ) 是由 杨超 李彦英 翁铁 何海涛 于 2021-07-15 设计创作，主要内容包括：本发明海上风电机组整体吊装用导向定位及缓冲装置包括:导向柱、液位传感器、控制器、单向阀、水泵、导向筒和截止阀,它用于将风机塔筒吊装在塔筒基础中,在塔筒托架下端的圆周上固定有若干个导向柱,在塔筒基础平台上固定有若干个相应的导向筒,通过管道、水泵、单向阀和截止阀,导向筒与海洋相通,在靠近导向筒上端装有液位传感器,液位传感器、水泵、单向阀和截止阀分别与控制器相连,风机塔筒吊装到塔筒基础的过程中,若干个导向柱插入到相应的若干个导向筒中进行定位,通过螺栓和螺母将风机塔筒法兰与塔筒法兰连接在一起,本装置利用海水廉价资源实现了缓冲效果,降低了风电安装成本,降低了波浪作用带来的风险。(The invention relates to a guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator set, which comprises guide posts, a liquid level sensor, a controller, a one-way valve, a water pump, guide cylinders and a stop valve, wherein the guiding posts, the liquid level sensor, the controller, the one-way valve, the water pump, the guide cylinders and the stop valve are used for hoisting a fan tower cylinder in a tower cylinder foundation, a plurality of guide posts are fixed on the circumference of the lower end of a tower cylinder bracket, a plurality of corresponding guide cylinders are fixed on a tower cylinder foundation platform, the guide cylinders are communicated with the ocean through pipelines, the water pump, the one-way valve and the stop valve, the liquid level sensor, the water pump, the one-way valve and the stop valve are respectively connected with the controller, the guide posts are inserted into the corresponding guide cylinders for positioning in the process of hoisting the fan tower cylinder to the tower cylinder foundation, a fan tower cylinder flange and the tower cylinder are connected together through bolts and nuts, the device utilizes cheap seawater resources to realize the buffering effect, the wind power installation cost is reduced, and the risk brought by the wave action is reduced.)

1. A guiding, positioning and buffering device for integral hoisting of an offshore wind turbine unit comprises a guide post (1), a liquid level sensor (2), a controller (3), a one-way valve (4), a water pump (5), a guide cylinder (6) and a stop valve (9), wherein the guiding post is used for hoisting a fan tower cylinder (10) in a tower cylinder foundation (16), a fan tower cylinder flange (12) is welded at the bottom end of the fan tower cylinder (10), a tower cylinder bracket (11) is fixed on the outer circumference of the fan tower cylinder (10), a plurality of lifting appliances (17) are arranged on the outer circumference of the tower cylinder bracket (11), a tower crane hoists the fan tower cylinder (10) on the tower cylinder foundation (16) through the plurality of lifting appliances (17), a bracket (14) is fixed on the tower cylinder foundation (16), a tower cylinder foundation platform (13) is fixed on the bracket (14) and the outer circumference of the tower cylinder foundation (16), the welding has tower footing flange (15) in tower section of thick bamboo basis (16) upper end, its characterized in that: be fixed with a plurality of guide post (1) on the circumference of tower section of thick bamboo bracket (11) lower extreme, be fixed with corresponding guide cylinder (6) of a plurality of on tower section of thick bamboo foundation platform (13), through the pipeline, water pump (5), check valve (4) and stop valve (9), guide cylinder (6) communicate with each other with the ocean, be equipped with level sensor (2) being close to guide cylinder (6) upper end, level sensor (2), water pump (5), check valve (4) and stop valve (9) link to each other with controller (3) respectively, the in-process of tower section of thick bamboo basis (16) is hoisted to fan tower section of thick bamboo (10), a plurality of guide post (1) are inserted and are fixed a position in corresponding a plurality of guide cylinder (6), link together fan tower section of thick bamboo flange (12) and tower section of thick bamboo flange (15) through screw bolt and nut.

2. The guiding, positioning and buffering device for integral hoisting of the offshore wind turbine generator set according to claim 1, characterized in that: the water inlet end of the water pump (5) is communicated with the ocean through a one-way valve (4), and the water outlet end of the water pump (5) is connected with the water inlet end of the guide column (1) through a pipeline; the water outlet end of the guide post (1) is communicated with the sea through a stop valve (9).

3. The guiding, positioning and buffering device for integral hoisting of the offshore wind turbine generator set according to claim 2, characterized in that: the guide post (1) is cylindrical, a conical section (8) is arranged at the lower end of the guide post, and the upper end of the guide post is welded on the tower barrel bracket (11).

4. The guiding, positioning and buffering device for integral hoisting of the offshore wind turbine generator set according to claim 3, wherein: the guide cylinder (6) is a cylindrical cylinder, and the upper end of the guide cylinder is a bell mouth (7).

5. The guiding, positioning and buffering device for integral hoisting of the offshore wind turbine generator set according to claim 4, wherein: the number of the guide columns (1) and the number of the guide cylinders (6) are 4-16.

6. The guiding, positioning and buffering device for integral hoisting of the offshore wind turbine generator set according to claim 5, wherein: the tower bracket (11) consists of 2-4 tower brackets (11) which are fixed together on the circumference of the wind turbine tower (10), and the lower end of each tower bracket (11) is fixed on a wind turbine tower flange (12) through bolts and nuts.

7. The guiding, positioning and buffering device for integral hoisting of the offshore wind turbine generator set according to claim 6, wherein: the tower base platform (13) consists of 2-4 tower base platforms (13) which are fixed to one another on the circumference of the tower base (16).

Technical Field

The invention relates to a guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator, and belongs to the field of hoisting facilities of heavy machinery.

Background

Offshore wind power is gradually developing to the deep sea, and offshore wind generating set is unfavorable for the location between wind generating set body and the tower section of thick bamboo basis owing to receive the influence of marine stormy waves in the installation, so makes the installation degree of difficulty increase of wind generating set tower section of thick bamboo.

The traditional buffering mainly adopts an oil cylinder as active or passive buffering, and the adopted hydraulic and electric control systems are complex, the control difficulty is high, and the manufacturing cost is high.

Traditional wind turbine generator system integral hoisting in-process, the back is accomplished in the buffering, wind turbine generator system tower section of thick bamboo descends after on wind turbine generator system tower section of thick bamboo basis, need mounting bolt on wind turbine generator system tower section of thick bamboo flange and tower section of thick bamboo basis flange, reduce the relative displacement of two flanges, wind turbine generator system still bears the hoisting equipment that wind carried and wave arouse this moment and sways the horizontal force that transmits wind turbine generator system, still need the lifting hook to keep certain lifting force, prevent that wind turbine generator system from tumbling, owing to receive the influence that the wave droops under the throne, wind turbine generator system tower section of thick bamboo can break away from wind turbine generator system tower section of thick bamboo basis, produce relative displacement, the installation of flange bolt has increased the difficulty, even behind the mounting part bolt, also can cause mounting bolt's fracture. In order to avoid the above problems, the hoisting equipment needs to add a wave compensator to reduce the influence of waves and also increase the construction cost.

Disclosure of Invention

The invention aims to solve the technical problem of high cost of the traditional hydraulic buffering equipment, and provides a guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator. The invention designs the guiding, positioning and buffering device for integral hoisting of the offshore wind turbine generator set according to the characteristics of offshore hoisting operation, not only can realize the guiding and positioning function, but also can play a buffering role.

In order to achieve the purpose of the invention, the invention adopts the following technical scheme:

the invention relates to a guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator, which comprises a guide post, a liquid level sensor, a controller, a one-way valve, a water pump, a guide cylinder and a stop valve, wherein the guiding post, the liquid level sensor, the controller, the one-way valve, the water pump, the guide cylinder and the stop valve are used for hoisting a fan tower cylinder in a tower cylinder foundation, a fan tower cylinder flange is welded at the bottom end of the fan tower cylinder, a tower cylinder bracket is fixed on the outer circumference of the fan tower cylinder, a plurality of lifting appliances are arranged on the outer circumference of the tower cylinder bracket, a tower crane hoists the fan tower cylinder on the tower cylinder foundation through the plurality of lifting appliances, a bracket is fixed on the tower cylinder foundation platform, and a tower foundation flange is welded at the upper end of the tower cylinder foundation, wherein: be fixed with a plurality of guide post on the circumference of tower section of thick bamboo bracket lower extreme, be fixed with the corresponding guide cylinder of a plurality of on tower section of thick bamboo basic platform, through the pipeline, a water pump, check valve and stop valve, the guide cylinder communicates with each other with the ocean, be equipped with level sensor near the guide cylinder upper end, level sensor, a water pump, check valve and stop valve link to each other with the controller respectively, the in-process on tower section of thick bamboo basis is hoisted to the fan tower section of thick bamboo, a plurality of guide post inserts and fixes a position in a plurality of corresponding guide cylinder, be in the same place fan tower section of thick bamboo flange and tower section of thick bamboo flange joint through screw bolt and nut.

The invention relates to a guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator, which comprises: the water inlet end of the water pump is communicated with the ocean through a one-way valve, and the water outlet end of the water pump is connected with the water inlet end of the guide column through a pipeline; the water outlet end of the guide post is communicated with the sea through a stop valve.

The invention relates to a guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator, which comprises: the guide post is cylindrical, a conical section is arranged at the lower end of the guide post, and the upper end of the guide post is welded on the tower barrel bracket.

The invention relates to a guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator, which comprises: the guide cylinder is a cylindrical cylinder, and the upper end of the guide cylinder is a bell mouth.

The invention relates to a guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator, which comprises: the number of the guide posts and the guide cylinders is 4-16.

The invention relates to a guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator, which comprises: the tower bracket is composed of 2-4 tower brackets which are fixed together on the circumference of the wind turbine tower, and the lower end of each tower bracket is fixed on a flange of the wind turbine tower through bolts and nuts.

The invention relates to a guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator, which comprises: the tower foundation platform consists of 2-4 tower foundation platforms which are fixed together on the circumference of the tower foundation.

The guiding, positioning and buffering device for integral hoisting of the offshore wind turbine generator system realizes a buffering effect by using cheap seawater resources, and reduces the wind turbine installation cost. After the flange of the wind turbine tower cylinder is contacted with the flange of the tower foundation, the participation of a tower crane is reduced, the risk brought by the wave action is reduced, and the influence of the waves on the wind turbine generator is reduced in the fastening of foundation bolts of the wind turbine generator tower cylinder and the wind turbine generator tower cylinder.

Drawings

FIG. 1 is a schematic forward view of a wind turbine tower and a tower foundation equipped with the guiding, positioning and buffering device for integral hoisting of an offshore wind turbine generator set according to the present invention;

fig. 2 is an enlarged front schematic view of the guiding, positioning and buffering device for integral hoisting of the offshore wind turbine generator set.

In fig. 1 to 2, reference numeral 1 denotes a guide post; reference numeral 2 is a liquid level sensor; reference numeral 3 is a controller; reference numeral 4 is a check valve; reference numeral 5 is a water pump; reference numeral 6 is a guide cylinder; reference numeral 7 denotes a bell mouth; reference numeral 8 is a conical section; reference numeral 9 is a stop valve; the reference number 10 is a fan tower; reference numeral 11 is a tower bracket; the reference numeral 12 is a fan tower flange; reference numeral 13 is a tower base platform; reference numeral 14 is a bracket; reference numeral 15 is a foundation flange; reference numeral 16 is a tower base; reference numeral 17 denotes a spreader.

Detailed Description

As shown in fig. 1, a wind turbine tower flange 12 is welded to the bottom end of the wind turbine tower 10, tower brackets 11 are fixed to the outer circumference of the wind turbine tower 10, the tower brackets 11 are composed of 2 to 4 tower brackets 11, which are fixed to each other on the circumference of the wind turbine tower 10, and the lower end of each tower bracket 11 is fixed to the wind turbine tower flange 12 by bolts and nuts. The tower drum support 11 is provided with a plurality of lifting appliances 17 on the outer circumference, and the tower crane hoists the wind turbine tower drum 10 on the tower drum base 16 through the plurality of lifting appliances 17.

As shown in FIG. 1, the tower base 16 is fixed with the bracket 14, the tower base platform 13 is fixed with the bracket 14, and the outer circumference of the tower base 16, the tower base platform 13 is composed of 2-4 tower base platforms 13 which are fixed with each other on the circumference of the tower base 16, and the tower base flange 15 is welded on the upper end of the tower base 16.

As shown in figures 1 and 2, the guiding, positioning and buffering device for integral hoisting of the offshore wind turbine generator comprises a guide column 1, a liquid level sensor 2, a controller 3, a one-way valve 4, a water pump 5, a guide cylinder 6 and a stop valve 9, and is used for hoisting a wind turbine tower 10 in a tower foundation 16. A plurality of guide posts 1 are fixed on the circumference of the lower end of the tower barrel bracket 11, the guide posts 1 are cylindrical, a conical section 8 is arranged at the lower end of the guide posts 1, and the upper end of the guide posts is welded on the tower barrel bracket 11. A plurality of corresponding guide cylinders 6 are fixed on the tower base platform 13, the guide cylinders 6 are cylindrical cylinders, and the upper ends of the guide cylinders are bell mouths 7. The number of the guide posts 1 and the guide cylinders 6 is 4-16. The water inlet end of the water pump 5 is communicated with the ocean through the one-way valve 4, and the water outlet end of the water pump 5 is connected with the water inlet end of the guide column 1 through a pipeline; the water outlet end of the guide column 1 is communicated with the sea through a stop valve 9, a liquid level sensor 2 is arranged at the upper end close to the guide cylinder 6, the liquid level sensor 2, a water pump 5, a one-way valve 4 and the stop valve 9 are respectively connected with a controller 3, the wind turbine tower 10 is hoisted to the tower cylinder foundation 16, a plurality of guide columns 1 are inserted into a plurality of corresponding guide cylinders 6 to be positioned, and a wind turbine tower flange 12 is connected with a tower cylinder flange 15 through bolts and nuts.

When the stop valve 9 is closed, the bottom of the guide cylinder 6 is closed, and the water storage function is achieved. The play between the guide post 1 and the guide cylinder 6 can provide a damping effect.

After the controller 3 is started, the liquid level in the guide cylinder 6 can be detected through the liquid level sensor 2, and the start and stop of the water pump 5 are controlled.

The working principle is as follows:

before hoisting, the controller 3 is started, the controller 3 detects a liquid level signal of the guide cylinder 6 through the liquid level sensor 2, the water pump 5 and the one-way valve 4 are started, the water pump 5 extracts seawater and fills the guide cylinder 6, and after the liquid level sensor 2 sends a seawater filling signal, the water pump 5 stops.

During hoisting, the tower barrel bracket 11 and the guide post 1 fall along with the hoisting hook, the conical section 8 of the guide post 1 is in contact with the bell mouth 7 of the guide barrel 6, and the guide function is realized by two inclined planes. The guide post 1 continuously falls, when the cylindrical section of the guide post 1 is just inserted into the cylindrical section of the guide cylinder 6, the lifting hook quickly falls, the guide post 1 quickly extrudes seawater in the guide cylinder 6, the seawater generates a reaction force on the guide post 1 to slow down the falling speed of the wind turbine generator, the seawater in the guide cylinder 6 is discharged from gaps between the guide post 1 and the guide cylinder 6 under the extrusion action, the cylindrical section of the guide post 1 is inserted into the cylindrical section of the guide cylinder 6 to be increased, the gap formed by the cylindrical section of the guide post 1 and the cylindrical section of the guide cylinder 6 is lengthened, the damping effect is enhanced, the reaction force generated by the seawater on the guide post 1 is increased, the falling speed of the wind turbine generator is continuously reduced until the fan tower cylinder flange 12 is contacted with the tower foundation flange 15, the guide post 1 and the guide cylinder 6 form a damper in the process, and the impact generated when the fan tower cylinder flange 12 is contacted with the tower foundation flange 15 is reduced.

After the guide post 1 and the guide cylinder 6 form a damper, the damping coefficient is about large along with the increase of the matching depth of the guide post 1 and the guide cylinder 6. The damper realizes a passive buffering function, and finally ensures that the wind turbine generator stably falls on the tower foundation 16 at an acceleration smaller than 0.25g (g is gravity acceleration).

In the whereabouts in-process, initial lifting hook is the same with wind turbine generator system descending speed, and along with damping buffering effect reinforcing, wind turbine generator system descending speed is less than lifting hook descending speed, and fan tower section of thick bamboo flange 12 contacts the back with column foot flange 15, connects a tower section of thick bamboo and holds in the palm, and the rigging on 11 is in the lax state, guarantees that wind turbine generator system no longer receives the wave influence, and at this moment, the guide post inserts completely in the guide cylinder, and wind turbine generator system location is accomplished.

The guide posts 1 and the guide cylinders 6 can offset horizontal force of wind power generation set bearing wind load, and the arrangement of the guide posts 1 and the guide cylinders 6 can offset tilting moment generated by horizontal force of wind power generation set bearing wind load. When the fan tower barrel flange 12 and the tower footing flange 15 are used for fastening bolts, the risk of separation of flange surfaces and bolt fracture is reduced.

In the process that the lifting hook rapidly falls, if the lifting hook does not finish in the wave period, the waves cause the tower crane to drive the guide post 1 to ascend, and the guide post 1 and the guide cylinder 6 form negative pressure to provide resistance for ascending motion. The guide post 1 rises and the seawater in the guide cylinder 6 descends, and the controller 3 starts the water pump 5 to fill the guide cylinder 6 with the seawater again, so that the buffering effect is ensured.

When the controller 3 is not available, the water pump 5 is always started in the hoisting process, so that the functions can be met.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and those skilled in the art should make various changes and modifications to the technical solution of the present invention without departing from the spirit of the present invention, which falls within the scope of the present invention defined by the claims.