阅读说明：本技术 一种基于温差能发电的冷海水管作业系统 (Cold sea water pipe operation system based on thermoelectric energy power generation ) 是由 张理 张超飞 谭健 段青峰 张玉龙 徐进 雷琦玉 段梦兰 黄世苗 于 2020-12-24 设计创作，主要内容包括：本说明书提供了一种基于温差能发电的冷海水管作业系统,作业系统包括：平台装置、取水管柱和沿取水管柱的周向设置的多个提升装置,平台装置设置有下放取水管柱的月池；提升装置包括：第一滑轮机构,第一滑轮机构固定于平台装置上；伸缩机构,伸缩机构的一端与第一滑轮机构连接；第二滑轮机构,第二滑轮机构与伸缩机构的另一端连接；拉绳,拉绳缠绕于第一滑轮机构和第二滑轮机构的滑轮上,并连接取水管柱；取水管柱上升和下沉时,第二滑轮机构在拉绳和伸缩机构的相互作用下能够在第一位置和第二位置之间运动,提升装置与取水管柱之间的拉绳方向与取水管柱的轴线方向之间形成锐角。本说明书能够保证取水管柱在使用时不会出现弯曲、扭转等现象。(This specification provides a cold sea water pipe operating system based on thermoelectric energy power generation, operating system includes: the water taking device comprises a platform device, a water taking pipe column and a plurality of lifting devices arranged along the circumferential direction of the water taking pipe column, wherein the platform device is provided with a moon pool for placing the water taking pipe column; the lifting device comprises: the first pulley mechanism is fixed on the platform device; one end of the telescopic mechanism is connected with the first pulley mechanism; the second pulley mechanism is connected with the other end of the telescopic mechanism; the pull rope is wound on the pulleys of the first pulley mechanism and the second pulley mechanism and is connected with the water taking pipe column; when the water taking pipe column rises and sinks, the second pulley mechanism can move between the first position and the second position under the interaction of the pull rope and the telescopic mechanism, and an acute angle is formed between the direction of the pull rope between the lifting device and the water taking pipe column and the axis direction of the water taking pipe column. This specification can guarantee that water intaking tubular column can not appear phenomenon such as crooked, twist reverse when using.)

1. A cold sea water pipe work system based on thermoelectric power generation, the work system comprising: the water taking device comprises a platform device, a water taking pipe column and a plurality of lifting devices arranged along the circumferential direction of the water taking pipe column, wherein the platform device is provided with a moon pool for placing the water taking pipe column; the lifting device comprises:

the first pulley mechanism is fixed on the platform device;

one end of the telescopic mechanism is connected with the first pulley mechanism;

the second pulley mechanism is connected with the other end of the telescopic mechanism;

the pull rope is wound on the pulleys of the first pulley mechanism and the second pulley mechanism and is connected with the water taking pipe column;

when the water taking pipe column rises and sinks, the second pulley mechanism can move between a first position and a second position under the interaction of the pull rope and the telescopic mechanism, and an acute angle is formed between the pull rope direction between the lifting device and the water taking pipe column and the axis direction of the water taking pipe column.

2. The work system of claim 1, wherein said pulley mechanism comprises: the support of the first pulley mechanism is connected with the platform device, and the support of the second pulley mechanism is connected with the telescopic mechanism.

3. The work system of claim 2, wherein said telescoping mechanism is a hydraulic cylinder comprising: the cylinder body is connected with the support of the first pulley mechanism, and the piston is connected with the support of the second pulley mechanism.

4. The work system of claim 1, wherein said lifting device further comprises a guide pulley mechanism connected between said second pulley mechanism and said intake string by a pull cord, comprising: the first guide pulley mechanism and the second guide pulley mechanism are used for tensioning the pull rope.

5. The work system of claim 1, wherein said string of water intake comprises:

the telescopic outer cylinder is provided with a hollow cavity;

one end of the telescopic inner cylinder can extend out of the hollow cavity;

the tensioning ring is arranged on the telescopic outer cylinder and is used for connecting the pull rope;

the locking mechanism is used for locking the inner position of the telescopic inner cylinder in the telescopic outer cylinder;

the connecting mechanism is connected with one end of the telescopic inner cylinder, which extends out of the hollow cavity and is used for connecting the platform device;

and the cold seawater pipe is connected with one end of the telescopic outer barrel, which deviates from the platform device.

6. The work system of claim 5, wherein said water intake string further comprises a rotation mechanism located between said telescoping outer barrel and said telescoping inner barrel.

7. The operating system of claim 5, wherein said platform means comprises: go up the deck and be provided with the lower deck of moon pool, it goes into to go up the deck be equipped with down the mouth of transferring of water intaking tubular column, it is provided with chuck mechanism to go up the deck, chuck mechanism with coupling mechanism links to each other, chuck mechanism is located between the upper and lower deck.

8. The work system of claim 7, wherein said chuck mechanism comprises: the clamping claw is used for clamping the water taking pipe column; and the driving component is used for driving the clamping jaws to extend and retract.

9. The work system of claim 8, wherein said chuck mechanism comprises: an assembly upper plate connected to the upper deck; the assembly middle plate is used for mounting the clamping jaw and the driving assembly; and the assembly lower plate is used for connecting the connecting mechanism, and the assembly upper plate, the assembly middle plate and the assembly lower plate are provided with open holes communicated with the lower discharge port and the moon pool.

10. The work system of claim 9, wherein a swing mechanism is disposed between said assembly lower plate and said assembly middle plate, said swing mechanism comprising: the assembly comprises an upper wedge block, a lower wedge block and an elastic rubber column, wherein the upper wedge block is connected with the middle plate of the assembly, the lower wedge block is connected with the lower plate of the assembly, and the elastic rubber column is arranged between the upper wedge block and the lower wedge block.

Technical Field

The application relates to the technical field of ocean thermoelectric power generation, in particular to a cold seawater pipe operation system based on thermoelectric power generation.

Background

The ocean temperature difference energy is the most stable energy source with higher density in the ocean energy, and has good development and utilization values. The ocean temperature difference power generation utilizes the temperature difference between the shallow layer and the deep layer of seawater and different heat sources of temperature and cold to generate power. The cold water pipeline is an important component of the ocean thermoelectric power station and is the only channel for deep cold seawater to enter the thermoelectric power generation system.

The cold seawater pipe is connected with the ocean platform device and is in a suspension state when the cold seawater pipe is placed down and is in a working state and a recovery state. In the suspended state, the platform device can generate heave motion along with the tide and wave of the seawater, and the cold seawater pipe can also generate violent axial motion under the driving of the heave motion of the ocean platform device. The violent axial motion may cause buckling or buckling and crushing failure at the top of the buoyancy area of the cold seawater pipe, and if the top of the cold seawater pipe has great tension, the cold seawater pipe may be broken. Meanwhile, the cold seawater pipe is subjected to the impact of seawater flow in seawater at any time, and is subjected to a large transverse force, so that the cold seawater pipe is bent and deformed.

Disclosure of Invention

In order to solve at least one technical problem that exists among the prior art, this application provides a cold sea water pipe operating system based on thermoelectric energy power generation, can provide the compensation ability to rising and sinking of water intaking tubular column, can overcome the power that the impact action of water intaking tubular column heaving motion and sea water produced the water intaking tubular column, guarantee that water intaking tubular column can not appear phenomenons such as bending, torsion when using.

In order to achieve the above purpose, the technical solution provided by the present application is as follows:

a cold sea water pipe operation system based on thermoelectric power generation, the operation system comprising: the water taking device comprises a platform device, a water taking pipe column and a plurality of lifting devices arranged along the circumferential direction of the water taking pipe column, wherein the platform device is provided with a moon pool for placing the water taking pipe column; the lifting device comprises:

the first pulley mechanism is fixed on the platform device;

one end of the telescopic mechanism is connected with the first pulley mechanism;

the second pulley mechanism is connected with the other end of the telescopic mechanism;

the pull rope is wound on the pulleys of the first pulley mechanism and the second pulley mechanism and is connected with the water taking pipe column;

when the water taking pipe column rises and sinks, the second pulley mechanism can move between a first position and a second position under the interaction of the pull rope and the telescopic mechanism, and an acute angle is formed between the pull rope direction between the lifting device and the water taking pipe column and the axis direction of the water taking pipe column.

As a preferred embodiment, the pulley mechanism includes: the support of the first pulley mechanism is connected with the platform device, and the support of the second pulley mechanism is connected with the telescopic mechanism.

As a preferred embodiment, the telescopic mechanism is a hydraulic cylinder, and includes: the cylinder body is connected with the support of the first pulley mechanism, and the piston is connected with the support of the second pulley mechanism.

As a preferred embodiment, the lifting device further includes a guide pulley mechanism connected between the second pulley mechanism and the water intake pipe column via a pull rope, and the guide pulley mechanism includes: the first guide pulley mechanism and the second guide pulley mechanism are used for tensioning the pull rope.

As a preferred embodiment, the water intake column includes:

the telescopic outer cylinder is provided with a hollow cavity;

one end of the telescopic inner cylinder can extend out of the hollow cavity;

the tensioning ring is arranged on the telescopic outer cylinder and is used for connecting the pull rope;

the locking mechanism is used for locking the inner position of the telescopic inner cylinder in the telescopic outer cylinder;

the connecting mechanism is connected with one end of the telescopic inner cylinder, which extends out of the hollow cavity and is used for connecting the platform device;

and the cold seawater pipe is connected with one end of the telescopic outer barrel, which deviates from the platform device.

As a preferred embodiment, the water intake column further comprises a rotating mechanism located between the telescopic outer cylinder and the telescopic inner cylinder.

As a preferred embodiment, the platform device includes: go up the deck and be provided with the lower deck of moon pool, it goes into to go up the deck be equipped with down the mouth of transferring of water intaking tubular column, it is provided with chuck mechanism to go up the deck, chuck mechanism with coupling mechanism links to each other, chuck mechanism is located between the upper and lower deck.

As a preferred embodiment, the chuck mechanism includes: the clamping claw is used for clamping the water taking pipe column; and the driving component is used for driving the clamping jaws to extend and retract.

As a preferred embodiment, the chuck mechanism includes: an assembly upper plate connected to the upper deck; the assembly middle plate is used for mounting the clamping jaw and the driving assembly; and the assembly lower plate is used for connecting the connecting mechanism, and the assembly upper plate, the assembly middle plate and the assembly lower plate are provided with open holes communicated with the lower discharge port and the moon pool.

As a preferred embodiment, a swing mechanism is provided between the assembly lower plate and the assembly middle plate, and the swing mechanism includes: the assembly comprises an upper wedge block, a lower wedge block and an elastic rubber column, wherein the upper wedge block is connected with the middle plate of the assembly, the lower wedge block is connected with the lower plate of the assembly, and the elastic rubber column is arranged between the upper wedge block and the lower wedge block.

Has the advantages that:

the cold sea water pipe operation system based on thermoelectric energy power generation that this specification embodiment provided sets up a plurality of hoisting devices in the circumference of water intaking tubular column, can provide heave compensation ability for the water intaking tubular column. The water taking pipe column is in a suspended state, the pull rope bears the gravity of the water taking pipe column, and the second pulley mechanism and the telescopic mechanism are integrally under the pressure of the pull rope. When the water taking pipe column rises, the pull rope is provided with upward force to balance the gravity of a part of the water taking pipe column, so that the pressure of the pull rope on the second pulley mechanism is reduced, and the telescopic mechanism drives the second pulley mechanism to rise; when the water taking pipe column descends, the force on the pull rope can press the telescopic mechanism downwards, and the telescopic mechanism drives the second pulley mechanism to descend under the pressure of the pull rope. The lifting of the telescopic mechanism can reflect the rising and sinking motion of the water taking pipe column, and the telescopic mechanism drives the second pulley mechanism to rise and fall to keep the tensioning of the pull rope on the water taking pipe column all the time.

When the water taking pipe column ascends and sinks, the second pulley mechanism can move between the first position and the second position under the interaction of the pull rope and the telescopic mechanism. In the process, an acute angle is formed between the direction of the pull rope between the lifting device and the water taking pipe column and the axis direction of the water taking pipe column. The pulling force on the pulling rope can decompose the forces in different directions to balance the forces on the axial motion and the transverse motion of the water taking pipe column, and the stress and the displacement of the water taking pipe are controlled. Therefore, when the water taking pipe column is influenced by factors such as wind, waves and tides to generate displacement in all directions, the water taking pipe column is always tensioned, and the water taking pipe column is prevented from being bent, twisted or even broken.

Specific embodiments of the present application are disclosed in detail with reference to the following description and drawings, indicating the manner in which the principles of the application may be employed. It should be understood that the embodiments of the present application are not so limited in scope.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without inventive labor.

Fig. 1 is a schematic structural diagram of a cold seawater pipe operation system based on thermoelectric power generation provided in an embodiment of the present specification;

FIG. 2 is an enlarged view of a portion of the portion A of FIG. 1;

fig. 3 is a schematic structural diagram of a lifting device provided in an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a chuck mechanism provided in an embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a water getting column provided in the embodiments of the present description.

Description of reference numerals:

1. a lifting device; 11. a first pulley mechanism; 107. a first pulley; 108. a first bracket; 12. a second pulley mechanism; 101. a second bracket; 102. a second pulley; 103. a telescoping mechanism; 104. a guide pulley bracket; 105. a guide pulley; 106. pulling a rope; 2. a chuck mechanism; 201. an assembly upper plate; 202. a claw; 203. a drive assembly; 204. assembling a middle plate; 205. a fixed part; 206. a wedge block; 207. an elastic rubber column; 208. an assembly lower plate; 3. a fixed block; 4. a platform device; 41. an upper deck; 42. a lower deck; 43. a moon pool; 5. a telescopic joint device; 501. a connecting mechanism; 502. a locking sleeve; 503. a hydraulic locking device; 504. the upper part is connected with the cylinder body; 505. a rotation mechanism; 506. a tension ring; 507. an inner telescopic cylinder; 508. a telescopic outer cylinder; 6. a cold seawater pipe; 7. a bell mouth.

Detailed Description

While the invention will be described in detail with reference to the drawings and specific embodiments, it is to be understood that these embodiments are merely illustrative of and not restrictive on the broad invention, and that various equivalent modifications can be effected therein by those skilled in the art upon reading the disclosure.

In the description of the embodiments herein, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise explicitly specified or limited. For example, the connection can be fixed, detachable or integrated; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Also, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The cold sea water pipe working system based on thermoelectric power generation of the embodiment of the present specification will be explained and explained with reference to fig. 1 to 5. It should be noted that, for convenience of description, like reference numerals denote like parts in the embodiments of the present invention. And for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments, and the descriptions of the same components may be mutually referred to and cited.

Specifically, the upward direction illustrated in fig. 1 to 5 is defined as "up", and the downward direction illustrated in fig. 1 to 5 is defined as "down". It should be noted that the definitions of the directions in the present specification are only for convenience of describing the technical solutions of the present specification, and do not limit the directions of the cold seawater pipe operation system based on thermoelectric power generation in the embodiments of the present specification in other scenarios, including but not limited to use, testing, transportation, and manufacturing, which may cause the orientation of the device to be reversed or the position of the device to be changed.

As shown in fig. 1 and fig. 2, a cold seawater operation system based on thermoelectric power generation provided in an embodiment of the present specification mainly includes: platform device 4, water intaking tubular column and a plurality of hoisting device 1 that set up along the circumference of water intaking tubular column, platform device 4 is provided with the moon pool 43 of transferring the water intaking tubular column.

The platform arrangement 4 is located in an offshore working area, including the deck. Typically, the platform assembly 4 is provided with a moon pool 43, the moon pool 43 being an opening in the deck of the platform assembly 4 for lowering a string of water intake pipes. The lifting device 1 has a plurality of lifting devices arranged on the platform device 4 along the circumference of the water intake pipe column. The number of the lifting devices 1 can be set according to the operation requirement and the weight requirement of the water taking pipe column so as to ensure that enough compensation force is provided for the water taking pipe column. The water taking pipe column can comprise a plurality of stages of pipe columns, can be formed by connecting a plurality of types of pipe columns in series, and can also refer to a single type of pipe column, the specific length is determined according to the operation requirement, and under the common condition, the length of the water taking pipe column needs to reach hundreds of meters or even more than thousands of meters.

As shown in fig. 3, the lifting device 1 includes: the first pulley mechanism 11, the first pulley mechanism 11 is fixed on the platform device 4; one end of the telescopic mechanism 103 is connected with the first pulley mechanism 11; the second pulley mechanism 12, the second pulley mechanism 12 is connected with another end of the telescopic mechanism 103; and a pull rope 106, wherein the pull rope 106 is wound on the pulleys of the first pulley mechanism 11 and the second pulley mechanism 12 and is connected with the water getting pipe column.

In the water intake column in the suspended state, the pull rope 106 receives the weight of the water intake column, and the second pulley mechanism 12 and the telescopic mechanism 103 as a whole receive the pressure generated by the pull rope 106. When the water taking pipe column rises, the upward force of the pull rope 106 is given to balance the gravity of a part of the water taking pipe column, so that the pressure of the pull rope 106 on the second pulley mechanism 12 is reduced, and the telescopic mechanism 103 can drive the second pulley mechanism 12 to rise; when the water intake column is lowered, the force on the pull rope 106 can press down the telescopic mechanism 103, and the telescopic mechanism 103 drives the second pulley mechanism 12 to be lowered by the pressure of the pull rope 106. In this way, the rising and falling motion of the water intake column can be reflected by the rising and falling of the telescopic mechanism 103, and the water intake column is always tensioned by the pull rope 106 by driving the second pulley mechanism 12 to rise and fall by the telescopic mechanism 103.

The second pulley mechanism 12 is movable between a first position and a second position under the interaction of the pull cord 106 and the retraction mechanism 103 as the water intake column is raised and lowered. Specifically, when the second pulley mechanism 12 is at the first position, the water intake pipe column rises; when the second pulley mechanism 12 is in the second position, the water intake column is lowered. In this process, an acute angle is formed between the direction of the stay 106 between the lifting device 1 and the water intake column and the axial direction of the water intake column.

Therefore, the pulling force on the pulling rope can be used for decomposing the forces in different directions to balance the forces on the axial motion and the transverse motion of the water taking pipe column, and controlling the stress and the displacement of the water taking pipe. When the water taking pipe column is influenced by factors such as wind, waves and tides to generate displacement in all directions, the water taking pipe column is always tensioned, and the water taking pipe column is prevented from being bent, twisted or even broken.

Further, an acute angle of less than 45 degrees is formed between the direction of the pulling rope 106 between the lifting device 1 and the water intake column and the axial direction of the water intake column. Therefore, the force in the direction parallel to the axis of the water intake column is greater than the force in the horizontal direction, which is resolved by the pulling rope 106, on the pulling rope 106, so that the pulling rope 106 can compensate the force in the axial direction of the water intake column better.

In this specification, by providing a plurality of lifting devices 1, the plurality of lifting devices 1 apply tension to the water intake pipe column respectively, and the resultant force direction formed by the plurality of lifting devices 1 is perpendicular to the horizontal plane, so as to provide a heave compensation effect for the water intake pipe column.

The pulley mechanism includes: a pulley and a bracket for fixing the pulley. As shown in fig. 3, the pulley includes a first pulley 107 and a second pulley 102, and the bracket includes a first bracket 108 and a second bracket 101. The first bracket 108 is used for supporting and can be connected with the telescopic mechanism 103 through bolts or flanges. In order to facilitate winding of the pulling rope 106, the first pulley 107 and the second pulley 102 are provided with grooves in the circumferential direction for the pulling rope 106 to be embedded. One end of the pull rope 106 may be mounted on the first bracket 108, the first bracket 108 is connected to the platform device 4 and fixed on the platform device 4, meanwhile, the first bracket 108 is connected to one end of the telescopic mechanism 103, and the other end of the telescopic mechanism 103 is connected to the second bracket 101. The second pulley mechanism 12 is specifically provided directly above the first pulley mechanism 11 in the direction of gravity.

In one embodiment, the telescoping mechanism 103 is a hydraulic cylinder comprising: the cylinder body is connected with the support of the first pulley mechanism 11, and the piston is connected with the support of the second pulley mechanism 12. So that the switching of the second pulley mechanism 12 between the first position and the second position is accomplished by the extension and extension of the piston in the cylinder.

In some possible embodiments, the telescoping mechanism 103 may also be a resilient mechanism, such as a spring assembly. One end of the spring assembly is connected to the first bracket 108 and the other end of the spring assembly is connected to the second bracket 101. During the ascending and descending process of the water taking pipe column, the second pulley mechanism 12 is switched between the first position and the second position through the change of the elastic potential energy of the spring assembly.

The lifting device 1 further comprises a guide pulley mechanism connected between the second pulley mechanism 12 and the water intake pipe column via a pull rope 106, comprising: the first guide pulley mechanism and the second guide pulley mechanism are used for tensioning the pull rope 106, so that the tensioning and heave compensation capabilities of the first pulley mechanism 11 and the second pulley mechanism 12 can be increased.

Specifically, the first guide pulley mechanism and the second guide pulley mechanism are both installed on the platform device 4, and include a guide pulley 105 and a guide pulley bracket 104, which are used for tensioning the pull rope 106. The first guide pulley mechanism may be disposed on the same horizontal plane as the first pulley mechanism 11, and the second guide pulley mechanism may be disposed obliquely above the first guide pulley mechanism, and may have a height between the first pulley mechanism 11 and the second pulley mechanism 12. Of course, the installation positions and installation heights of the first guide pulley mechanism and the second guide pulley mechanism are not limited to the above-described embodiment, and the purpose thereof is to ensure the tension of the pull rope 106 between the second pulley mechanism 12 and the water intake column.

In this specification, as shown in fig. 5, the water intake column includes: a telescopic outer cylinder 508 having a hollow cavity; one end of the telescopic inner cylinder 507 can extend out of the hollow cavity; a tension ring 506 arranged on the telescopic outer cylinder 508 and used for connecting the pull rope 106; a locking mechanism for locking the inner telescopic cylinder 507 at the inner position of the outer telescopic cylinder 508; the connecting mechanism 501 is connected with one end of the telescopic inner cylinder 507 extending out of the hollow cavity and is used for connecting the platform device 4; and the cold seawater pipe 6 is connected with one end of the telescopic outer cylinder 508, which is far away from the platform device 4.

The water taking pipe column integrally comprises an expansion joint device 5 and a cold seawater pipe 6, and the expansion joint device 5 can compensate the overall length of the cold seawater pipe 6 through the matching of an expansion outer cylinder 508 and an expansion inner cylinder 507. The telescopic inner cylinder 507 and the telescopic outer cylinder 508 can be locked by a locking mechanism, so that the whole length of the telescopic joint device 5 is fixed. In one embodiment, the locking mechanism may include a locking sleeve 502, a hydraulic locking device 503, and an upper connection cylinder 504, the locking sleeve 502 and the upper connection cylinder 504 may be connected to the inner telescopic cylinder 507 and the outer telescopic cylinder 508, respectively, and the locking sleeve 502 and the upper connection cylinder 504 are locked by the hydraulic locking device 503, thereby locking the position between the inner telescopic cylinder 507 and the outer telescopic cylinder 508. To facilitate connection of the intake string to the pull cord 106, the telescoping outer barrel 508 may be provided with a tension ring 506 on the exterior thereof.

Taking the direction shown in fig. 5 as an example, the upper end of the telescopic inner cylinder 507 extends from the telescopic outer cylinder 508, and the upper end of the telescopic inner cylinder 507 is fixedly connected to the platform device 4 through the connecting mechanism 501. The connection 501 may be an upper flange so that the inner telescoping cylinder 507 is rigidly connected to the platform assembly 4. The lower end of the telescopic outer cylinder 508 can be connected with the cold seawater pipe 6 through a lower flange plate, so that the cold seawater pipe 6 is rigidly connected with the platform device 4 through the telescopic outer cylinder 508 and the telescopic inner cylinder 507. So that the heave motion of the ocean platform assembly 4 is transferred directly to the telescoping outer cylinder 508, i.e. to the top of the cold seawater tube 6. The cold sea water pipe 6 is usually provided with a plurality of pipes which can be connected together through a flange structure or a quick joint, and the bottom of the cold sea water pipe 6 is provided with a bell mouth 7.

Further, the water intake column further comprises a rotating mechanism 505 positioned between the telescopic outer cylinder 508 and the telescopic inner cylinder 507. The rotating mechanism 505 may be a bearing disposed between the telescopic outer cylinder 508 and the telescopic inner cylinder 507.

In the present specification, as shown in fig. 2 and 4, the stage device 4 includes: the upper deck 41 and the lower deck 42 provided with the moon pool 43, the upper deck 41 is provided with a lowering port for lowering a water intake pipe column, the upper deck 41 is provided with a chuck mechanism 2, the chuck mechanism 2 is connected with the connecting mechanism 501, and the chuck mechanism 2 is positioned between the upper deck and the lower deck.

In the embodiment of the present specification, the upper deck 41 is used for mounting the chuck mechanism 2, and the lower deck 42 is used for mounting the lifting device 1. Wherein, the brackets of the first pulley mechanism 11, the second pulley mechanism 12 and the guide pulley mechanism are mounted on the lower deck 42 and the upper deck 41 through the fixing block 3. In order to facilitate the grabbing and the running of the water taking pipe column, the chuck mechanism 2 is coaxially arranged with the lower discharging opening and the moon pool 43.

Chuck mechanism 2 is used for quick centre gripping and releases water intaking tubular column, includes: a claw 202 for gripping the water intake pipe column, and a driving component 203 for driving the claw 202 to extend and retract. The number of the claws 202 is plural, and may be two, four, six or more. The drive assembly 203 may be a drive cylinder, the piston of which is connected to the jaws 202, or the piston part of which may be provided in the form of jaws.

Specifically, the chuck mechanism 2 includes: an assembly upper plate 201 connected to the upper deck 41; an assembly middle plate 204 for mounting the jaw 202 and the driving component 203; the assembly lower plate 208 is used for being connected with the connecting mechanism 501, and the assembly upper plate 201, the assembly middle plate 204 and the assembly lower plate 208 are provided with openings communicated with the lower opening and the moon pool 43.

The specific implementation steps of clamping and lowering the water taking pipe column by the chuck mechanism 2 can be as follows: the crown block lifts the cold sea water pipe 6 and conveys it to the position above the center of the chuck mechanism 2, then slowly descends, and when the lower end face of the connecting flange of the cold sea water pipe 6 is to be aligned with the claw 202, the crown block stops. The drive assembly 203 simultaneously extends the jaws 202 to form a bearing surface for the cold seawater tube 6. After the claw 202 extends to a predetermined position, the driving assembly 203 stops moving, and the claw 202 is fixed at the current position. Thereafter the crown block continues lowering the cold sea water pipe 6 until the cold sea water pipe 6 is fully supported by the jaws 202. After the action is finished, the crown block releases the cold seawater pipe 6 which is in place, the next cold seawater pipe 6 is hoisted to the position above the center of the chuck mechanism 2, the next cold seawater pipe is slowly descended, and after the lower end surface of the next cold seawater pipe 6 is contacted with the upper end surface of the cold seawater pipe 6 which is in place, the flanges of the two cold seawater pipes 6 are connected through quick connectors or bolts. The crown block is then lifted slightly upwards, lifting the cold seawater tube 6 sitting on the jaw 202, so that the jaw is unloaded. The drive assembly 203 drives the jaws 202 to retract, again creating a lowering path for the cold seawater pipe 6.

After the installation of the cold seawater pipe 6 is completed, the telescopic joint device 5 is installed at the top of the cold seawater pipe 6, and the installed telescopic joint device 5 is connected with the assembly lower plate 208 through the connecting mechanism 501. Thereby fixedly connecting the water intake column with the chuck mechanism 2, since the chuck mechanism 2 is connected to the upper deck 41 of the platform device 4, i.e. the water intake column is fixedly connected with the platform device 4.

Further, a swing mechanism is disposed between the assembly lower plate 208 and the assembly middle plate 204, and the swing mechanism includes: an upper wedge block connected with the assembly middle plate 204, a lower wedge block connected with the assembly lower plate 208, and an elastic rubber column 207 arranged between the upper wedge block and the lower wedge block. The upper wedge block is connected with the middle plate 204 of the assembly through a fixing part 205, the upper wedge block is fixedly connected with the elastic rubber column 207, the upper wedge block can also be welded, and the lower wedge block is fixedly connected with the elastic rubber column 207, and the lower wedge block can be welded. Therefore, by providing the elastic rubber column 207 between the wedges 206, the rubber column has a certain elasticity, so that the chuck mechanism 2 can swing at a certain angle along with the water intake column when the water intake column swings.

The above embodiments are merely illustrative of the technical concepts and features of the present application, and the purpose of the present invention is to enable those skilled in the art to understand the content of the present application and implement the present application, and not to limit the protection scope of the present application. All equivalent changes and modifications made according to the spirit of the present application should be covered in the protection scope of the present application.

All articles and references disclosed, including patent applications and publications, are hereby incorporated by reference for all purposes. The term "consisting essentially of …" describing a combination shall include the identified element, ingredient, component or step as well as other elements, ingredients, components or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.

A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes.