Ocean temperature difference energy power generation seaborne lower pipe oscillation stopping pipe connecting device

Abstract

The invention provides an ocean temperature difference energy power generation offshore lower pipe oscillation stopping pipe connecting device which comprises a fixing base installed on an offshore platform. The inner end of the first upper arm is connected to the fixed seat, and the outer end of the first upper arm is connected with a first upper clamping device; the inner end of the second upper arm is connected to the fixed seat, and the outer end of the second upper arm is connected with a second upper clamping device; the inner end of the lower arm is connected to the fixed seat, and the outer end of the lower arm is connected with a lower clamping device; the first upper clamping device and the second upper clamping device are respectively clamped on the outer sides of different axial positions of the upper connecting pipe at intervals, and the lower clamping device is clamped on the outer side of the lower connecting pipe. The inclination direction of the upper connecting pipe in the butt joint process of the lower connecting pipe can be controlled and adjusted; and the upper end of the lower connecting pipe is controlled through the lower arm and the lower clamping device, so that the lower end of the upper connecting pipe and the upper end of the lower connecting pipe are controlled to be contacted and aligned, the two connecting pipes can be stably connected, and the construction efficiency of the ocean temperature difference energy power generation equipment is further effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of ocean temperature difference energy power generation, and in particular to an offshore pipe swing-stopping connecting pipe device for ocean temperature difference energy power generation. Background Art

[0002] Ocean temperature difference power generation uses the temperature difference between the shallow and deep layers of seawater and its warm and cold heat sources to generate electricity through heat exchangers and turbines. In existing ocean temperature difference power generation systems, the source of heat energy is the warm seawater on the ocean surface, and the method of power generation is to use the warm seawater to evaporate the low-boiling-point working fluid in the closed circulation system.

[0003] One difficulty of ocean temperature difference power generation technology is that the temperature difference between warm seawater and cold seawater is above 20℃ to generate net electricity, and cold seawater is generally extracted from a depth of 600 to 1000 meters below sea level. This requires the cold water pipe to be extended to the deep sea to extract cold water by forming a long pipe with multiple short sections. However, due to the shaking state of offshore construction, it is impossible to maintain stability, resulting in difficulty in connecting the two sections of pipe.

[0004] In the prior art, Chinese patent CN117052984A published on November 14, 2023, discloses an offshore pipe anti-sway device for ocean temperature difference energy power generation. The pipe lowering process is gradually stabilized by setting multiple anti-sway zones. However, this method can only play a certain stabilizing role on the upper pipe that is not affected by buoyancy at sea. For the lower pipe that has been affected by buoyancy in the sea, there may still be shaking, resulting in the inability to stably connect the two pipe sections. Summary of the invention

[0005] The object of the present invention is to provide an offshore pipe anti-swaying pipe device for ocean temperature difference energy power generation, which can more stably connect two sections of pipes and improve the construction efficiency of ocean temperature difference energy power generation equipment.

[0006] The present invention provides an offshore lower pipe anti-swaying connecting pipe device for ocean temperature difference energy power generation, comprising: a fixing seat, installed on an offshore platform; a first upper arm, the inner end of the first upper arm is connected to the fixing seat, and the outer end is connected to a first upper clamping device; a second upper arm, the inner end of the second upper arm is connected to the fixing seat, and the outer end is connected to a second upper clamping device; a lower arm, the inner end of the lower arm is connected to the fixing seat, and the outer end is connected to a lower clamping device; the first upper clamping device and the second upper clamping device are respectively clamped at different axial positions of the upper connecting pipe at intervals, and the lower clamping device is clamped on the outside of the lower connecting pipe.

[0007] Furthermore, the fixing seat comprises a vertical bracket, and the inner ends of the first upper arm, the second upper arm and the lower arm are all connected to the vertical bracket in a slidable manner up and down.

[0008] Furthermore, the vertical bracket is provided with an upper arm guide rail and a lower arm guide rail, an upper slider connecting the first upper arm and the second upper arm is slidably provided in the upper arm guide rail, and a lower slider connecting the lower arm is slidably provided in the lower arm guide rail; the upper slider is connected to the first linear drive, and the lower slider is connected to the second linear drive.

[0009] Furthermore, the first upper arm and the second upper arm are connected by an angle adjustment mechanism, and the angle adjustment mechanism is connected to the upper slider; the angle adjustment mechanism includes a shell, and a meshing gear and a gear fan are rotatably provided inside the shell, the gear is connected to the first rotation drive device, the gear fan is connected to the first upper arm, and the tooth shaft of the gear fan is rotatably connected to the second upper arm.

[0010] Further, the first upper arm includes a first telescopic support arm, which is movably connected to the first upper clamping device; the second upper arm includes a second telescopic support arm and a rotating support arm, which is movably connected to the second upper clamping device, and the second telescopic support arm is connected to the tooth shaft of the gear fan through the rotating support arm.

[0011] Furthermore, the first upper clamping device and the lower clamping device respectively include clamping claws; the second upper clamping device includes an outer rail and a clamping ring of an annular structure, the inner side of the clamping ring clamps the lower end of the upper pipe, the outer side of the clamping ring is rotatably connected to the outer rail, and the outer side of the outer rail is movably connected to the second upper arm.

[0012] Furthermore, the clamping ring is provided with annularly distributed bevel teeth, the outer rail is provided with a second rotation driving device, and the second rotation driving device is meshed with the bevel teeth on the clamping ring through a bevel gear.

[0013] Furthermore, guide brackets are respectively provided at the bottom and top ends of the vertical bracket, and two arc-shaped openings opening outward are provided on the side of the guide bracket away from the vertical bracket, and an arc-shaped retaining ring fitting with the outer periphery of the upper pipe and the lower pipe is provided between the two arc-shaped openings and on the side adjacent to the vertical bracket.

[0014] Furthermore, the fixed seat also includes a transverse sliding saddle, a longitudinal sliding saddle and a saddle. The saddle is fixedly set on the offshore platform, the transverse sliding saddle is set on the saddle for transverse sliding, the longitudinal sliding saddle is set on the transverse sliding saddle for longitudinal sliding, and the vertical bracket is fixedly set on the longitudinal sliding saddle.

[0015] Furthermore, the saddle is provided with a transverse guide rail and a transverse driver, and a transverse slider is provided at the bottom of the transverse slide saddle, and the transverse slider slides in the transverse guide rail and is connected to the transverse driver; the transverse slide saddle is provided with a longitudinal guide rail and a longitudinal driver, and a longitudinal slider is provided at the bottom of the longitudinal slide saddle, and the longitudinal slider slides in the longitudinal guide rail and is connected to the longitudinal driver.

[0016] The technical solution of the present invention controls the upper and middle part of the upper connecting pipe by the first upper arm and the first upper clamping device, and controls the lower end of the upper connecting pipe by the second upper arm and the second upper clamping device, so as to control and adjust the inclination direction of the upper connecting pipe during the docking process with the lower connecting pipe; and then controls the upper end of the lower connecting pipe by the lower arm and the lower clamping device, so as to control the contact and alignment angle between the lower end of the upper connecting pipe and the upper end of the lower connecting pipe, and then the two connecting pipes can be stably connected, thereby effectively improving the construction efficiency of the ocean temperature difference energy power generation equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is another perspective overall structural schematic diagram of the present invention;

[0020] Figure 3 For the present invention Figure 2 A magnified image of point A;

[0021] Figure 4 It is a schematic diagram of the internal structure of the second upper clamping device of the present invention;

[0022] Figure 5 For the present invention Figure 4 The enlarged view of point B;

[0023] Figure 6 is a side view of the present invention;

[0024] Figure 7 For the present invention Figure 6 CC section view;

[0025] Description of reference numerals:

[0026] 1-Offshore platform;

[0027] 2-fixed seat; 201-vertical bracket; 202-upper arm guide rail; 203-lower arm guide rail; 204-upper slider; 205-lower slider; 206-first linear drive; 207-second linear drive; 208-guide bracket; 209-arc-shaped opening; 210-arc-shaped retaining ring; 211-transverse saddle; 212-longitudinal saddle; 213-saddle; 214-transverse guide rail; 215-transverse drive; 216-transverse slider; 217-longitudinal guide rail; 218-longitudinal drive; 219-longitudinal slider;

[0028] 3-first upper arm; 301-first telescopic support arm;

[0029] 4- the first upper clamping device;

[0030] 5-second upper arm; 501-second telescopic arm; 502-rotating arm;

[0031] 6-second upper clamping device; 601-outer rail; 6011-guide rail groove; 6012-oil filling groove; 6013-oil filling channel; 6014-pump; 6015-oil outlet; 602-clamping ring; 6021-oil inlet groove; 6022-piston rod; 603-bevel gear; 604-second rotation driving device; 605-bevel gear;

[0032] 7-lower arm; 8-lower clamping device;

[0033] 9-angle adjustment mechanism; 901-housing; 902-gear; 903-toothed fan; 904-first rotation driving device;

[0034] 10-Upper pipe;

[0035] 11- Take over the lower pipe. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] Example 1

[0040] like Figure 1-Figure 7 As shown, the present invention provides an offshore lower pipe anti-swaying connecting pipe device for ocean temperature difference energy power generation, comprising: a fixing seat 2, installed on an offshore platform 1; a first upper arm 3, the inner end of the first upper arm 3 is connected to the fixing seat 2, and the outer end is connected to a first upper clamping device 4; a second upper arm 5, the inner end of the second upper arm 5 is connected to the fixing seat 2, and the outer end is connected to a second upper clamping device 6; a lower arm 7, the inner end of the lower arm 7 is connected to the fixing seat 2, and the outer end is connected to a lower clamping device 8; the first upper clamping device 4 and the second upper clamping device 6 are respectively clamped at different axial positions of the upper connecting pipe 10 at intervals, and the lower clamping device 8 is clamped on the outside of the lower connecting pipe 11.

[0041] Specifically, ocean temperature difference energy generation requires inserting cold water pipes into the deep sea to draw water. Due to buoyancy, the lower connecting pipe 11 located in the water is prone to fluctuations during the construction process and cannot maintain a stable state. The upper connecting pipe 10 is also unable to maintain a stable state due to the instability of the offshore platform 1, so it is difficult to connect the two pipes.

[0042] During operation of the present invention, multiple sections of lower pipes 11 have been spliced ​​to a certain length / depth under the sea surface, and the upper end of the uppermost lower pipe 11 extends out of the sea surface for connection with the upper pipe 10 above the sea surface, and the upper end of the section of the lower pipe 11 extends upward through the lower clamping device 8 and is clamped by the lower clamping device 8. The hoist (not shown) on the offshore platform 1 lifts a section of the upper pipe 10 and gradually lowers it through the first upper clamping device 4 and the second upper clamping device 6, until the lower end of the upper pipe 10 passes through the second upper clamping device 6, and the first upper clamping device 4 and the second upper clamping device 6 clamp / hold at different positions of the upper pipe 10. Then, by adjusting the relative lengths and directions of the first upper arm 3, the second upper arm 5 and the lower arm 7, the inclination directions of the upper connecting pipe 10 and the lower connecting pipe 11 can be adjusted so that the inclination angles of the upper connecting pipe 10 and the lower connecting pipe 11 are basically aligned; then adjust the first upper arm 3 and the second upper arm 5 to move downward until the lower end of the upper connecting pipe 10 and the upper end of the lower connecting pipe 11 reach the connection position, and then the connecting process can be started (for example, contact for welding, or the start of thread engagement, etc.). Due to the clamping and fixing effect, the connecting process is more convenient and stable.

[0043] In the present invention, the first upper arm 3 includes a telescopic structure, and the second upper arm 5 and the lower arm 7 both include a telescopic structure and a bending structure. The bending structure is a rotating joint, and the rotating joint separates the second upper arm 5 and the lower arm 7 into two sections, one section is connected to the fixed seat 2, and the other section is connected to the clamping device through the telescopic structure. A hydraulic motor or a reduction motor is provided on the rotating joint to drive and control the rotation to achieve the bending of the second upper arm 5 and the lower arm 7; the telescopic structure can adopt a hydraulic telescopic arm, etc., to achieve the extension and retraction of the first upper arm 3, the second upper arm 5 and the lower arm 7. Through the extension and retraction functions of the first upper arm 3 and the second upper arm 5, the position and tilt angle of the upper connecting pipe 10 can be adjusted; in conjunction with the bending and telescopic functions of the lower arm 7, the upper connecting pipe 10 and the lower connecting pipe 11 can be controlled to align for easy connection.

[0044] Example 2

[0045] The fixing seat 2 includes a vertical bracket 201, and the inner ends of the first upper arm 3, the second upper arm 5 and the lower arm 7 are all connected to the vertical bracket 201 in a slidable manner. The vertical bracket 201 is provided with an upper arm guide rail 202 and a lower arm 7 guide rail 203, an upper slider 204 connecting the first upper arm 3 and the second upper arm 5 is slidably provided in the upper arm guide rail 202, and a lower slider 205 connecting the lower arm 7 is slidably provided in the lower arm 7 guide rail 203; the upper slider 204 is connected to the first linear drive 206, and the lower slider 205 is connected to the second linear drive 207. The first upper arm 3 and the second upper arm 5 are connected through an angle adjustment mechanism 9, and the angle adjustment mechanism 9 is connected to the upper slider 204; the angle adjustment mechanism 9 includes a housing 901, and a meshing gear 902 and a gear fan 903 are rotatably provided in the housing 901, the gear 902 is connected to a first rotation driving device 904 (such as a reduction motor), the gear fan 903 is connected to the first upper arm 3, and the toothed shaft of the gear fan 903 is rotatably connected to the second upper arm 5. The first upper arm 3 includes a first telescopic support arm 301, and the first telescopic support arm 301 is movably connected to the first upper clamping device 4; the second upper arm 5 includes a second telescopic support arm 501 and a rotating support arm 502, and the second telescopic support arm 501 is movably connected to the second upper clamping device 6, and the second telescopic support arm 501 is connected to the toothed shaft of the gear fan 903 through the rotating support arm 502.

[0046] Specifically, the first upper arm 3, the second upper arm 5 and the lower arm 7 realize the up and down movement function through the vertical bracket 201, and the height control of the upper connecting pipe 10 is realized through the vertical movement of the first upper arm 3, the second upper arm 5 and the lower arm 7. After an upper connecting pipe 10 is connected with a lower connecting pipe 11, the lower clamping device 8 releases the original lower connecting pipe 11, and the first upper clamping device 4 and the second upper clamping device 6 clamp the original upper connecting pipe 10 and move it downward (if the single descent stroke is insufficient, they can take over to clamp the lower clamping device 8 and release the upper clamping device) to the sea surface to become a new lower connecting pipe 11, and then the lower clamping device 8 clamps the new lower connecting pipe 11, and the upper clamping device releases and moves upward to clamp the new upper connecting pipe 10 that is replaced alternately, and then the connecting pipe is connected to realize continuous connecting pipe.

[0047] A vertical upper arm guide rail 202 and a lower arm 7 guide rail 203 are provided on the vertical bracket 201, and sliders are provided on the guide rails respectively, wherein the two upper sliders 204 connecting the first upper arm 3 and the second upper arm 5 are both slidably connected to the upper arm guide rail 202, and the lower slider 205 connecting the lower arm 7 is slidably connected to the lower arm 7 guide rail 203, that is, the heights of the upper connecting pipe 10 and the lower connecting pipe 11 are independently controlled by the sliders on the upper arm guide rail 202 and the lower arm 7 guide rail 203 respectively.

[0048] Both the first linear drive 206 and the second linear drive 207 can adopt a motor screw structure. The first screw is rotatably set in the upper arm guide rail 202, and the second screw is rotatably set in the lower arm 7 guide rail 203. Two reduction motors are fixed on the vertical bracket 201 to drive the first screw and the second screw respectively. The two upper sliders 204 connecting the first upper arm 3 and the second upper arm 5 are respectively rotated and connected to different height positions of the first screw, and the lower slider 205 connecting the lower arm 7 is rotated and connected to the second screw. The first upper arm 3 and the second upper arm 5 and the lower arm 7 can be controlled by the two reduction motors.

[0049] Before the upper connecting pipe 10 is connected to the lower connecting pipe 11, the axial alignment of the upper connecting pipe 10 and the lower connecting pipe 11 is adjusted by the angle adjustment mechanism 9. In general, the angle adjustment mechanism 9 is realized by controlling the upper part of the upper connecting pipe 10 to swing and controlling the lower part of the upper connecting pipe 10 to be (relatively) fixed. The swing of the upper part of the upper connecting pipe 10 is controlled by the first upper clamping device 4, and the upper part of the upper connecting pipe 10 can swing in the first plane (referred to as the XZ plane) through the telescopic structure of the first upper arm 3 in Example 1; the upper part of the upper connecting pipe 10 can swing in the second plane (referred to as the YZ plane) through the structure of the gear 902 driving the gear fan 903 in this embodiment; the second upper clamping device 6 that clamps the lower part of the upper connecting pipe 10 is rotationally connected to the second upper arm 5 through a universal rotation mechanism (such as a universal joint / universal joint), so that the tilt angle of the upper connecting pipe 10 can be adjusted by controlling the rotation drive device of the telescopic structure on the first upper arm 3 and the gear 902, so that it is axially aligned with the lower connecting pipe 11.

[0050] The first upper arm 3 is composed of two sections, one end of the telescopic support arm is movably connected to the first upper clamping device 4, and the other end is directly connected to the gear fan 903 adjacent to the outer periphery of the angle adjustment mechanism 9 through a straight arm, and the gear fan 903 and the gear 902 in the outer shell 901 are rotatably arranged; the gear fan 903 is a fan-shaped structure, and its rotation axis and the fan-shaped axis are located on the rotating support arm 502 of the second upper arm 5 and are rotatably connected, that is, when the gear fan 903 rotates, it drives the rotating support arm 502 of the first upper arm 3 connected thereto to swing within a fan-shaped range relative to the second upper arm 5.

[0051] The housing 901 of the angle adjustment mechanism 9 is directly connected to the two upper sliders 204 that control the first upper arm 3 and the second upper arm 5 through a bracket, that is, the lifting and lowering of the angle adjustment mechanism 9 synchronously controls the lifting and lowering of the first upper arm 3 and the second upper arm 5 .

[0052] In addition, the device can also be provided with an angle alignment mechanism outside the upper tube 10 and the lower tube 11 to monitor the relative tilt angle of the upper tube 10 and the lower tube 11. The angle alignment mechanism is, for example, a laser transmitter outside the lower end of the upper tube 10 and a photoelectric sensor outside the upper end of the lower tube 11, the laser transmitter emitting angle is parallel to the axial direction of the upper tube 10, and the photoelectric sensor receiving angle is parallel to the axial direction of the lower tube 11. When the photoelectric sensor receives the laser signal, it means that the upper tube 10 and the lower tube 11 are aligned, and then the upper tube 10 moves downward to dock with the lower tube 11.

[0053] Example 3

[0054] The first upper clamping device 4 and the lower clamping device 8 respectively include clamping claws; the second upper clamping device 6 includes an outer rail 601 and a clamping ring 602 of an annular structure, the inner side of the clamping ring 602 clamps the lower end of the upper pipe 10, the outer side of the clamping ring 602 is rotatably connected to the inner side of the outer rail 601, and the outer side of the outer rail 601 is movably connected to the second upper arm 5. The clamping ring 602 is provided with annularly distributed bevel teeth 603, and the outer rail 601 is provided with a second rotation driving device 604, and the second rotation driving device 604 (such as a reduction motor) is meshed with the bevel teeth 603 on the clamping ring 602 through a bevel gear 605.

[0055] Specifically, the first upper clamping device 4 and the lower clamping device 8 respectively include clamping claws, which are, for example, electrically or hydraulically controlled mechanical claws / clamping device structures. Such clamps are common in the prior art, such as steering gear clamps, etc., which can be opened and closed. When opened, they release the clamping of the upper pipe 10, and when closed, they clamp the upper section of the upper pipe 10.

[0056] The outer rail 601 is annular, with a circle of guide rail grooves 6011 on the inner wall, and an oil injection groove 6012 is provided outwardly at the bottom of the groove. The outer rail 601 is connected to the oil injection groove 6012 through an oil injection channel 6013 to inject oil inwardly. The outer side of the oil injection channel 6013 can be connected to a hydraulic pump 6014, and the inner side of the oil injection groove 6012 is open to form an oil outlet 6015. The clamping ring 602 is annular and rotatably arranged in the guide rail groove 6011. The clamping ring 602 is hollow inside and has a circle of oil inlet grooves 6021 on the outer circumference. The oil injection groove 6012 is embedded in the oil inlet groove 6021 of the clamping ring 602 and is connected to the inside of the clamping ring 602 through the oil outlet 6015, so that oil can be injected into the clamping ring 602. A plurality of piston rods 6022 are provided around and through the clamping ring 602 . When oil is injected into the clamping ring 602 , the piston rods 6022 extend to clamp the upper connecting pipe 10 . Conversely, when oil is extracted from the clamping ring 602 , the piston rods 6022 retract to release the upper connecting pipe 10 .

[0057] The outer side of the outer rail 601 is movably connected to the second telescopic support arm 501 of the second upper arm 5 through a universal hinge structure, and the inner side is provided with a track for the rotation of the clamping ring 602. When the rotation drive device on the outer rail 601 is started, the bevel gear 605 rotates to drive the clamping ring 602 to rotate, thereby controlling the rotation of the upper pipe 10 and the threaded connection between the lower pipe 11. When the clamping ring 602 starts to rotate, the clamping claws of the first upper clamping device 4 release the clamping of the upper pipe 10, and the lower clamping device 8 clamps the lower pipe 11.

[0058] In addition, in this embodiment, an intermediate piece can be used to connect the upper pipe 10 and the lower pipe 11. For example, a short pipe can be used as the intermediate piece. An internal thread is provided inside the short pipe, and external threads are provided at the lower end of the upper pipe 10 and the upper end of the lower pipe 11. The lower end of the upper pipe 10 and the upper end of the lower pipe 11 are inserted into the short pipe and threadedly connected to achieve the connection of the two pipe sections.

[0059] Example 4

[0060] A guide bracket 208 is provided at the bottom and top of the vertical bracket 201 respectively. The side of the guide bracket 208 away from the vertical bracket 201 is provided with two arc-shaped openings 209 opened outward. An arc-shaped retaining ring 210 is provided between the two arc-shaped openings 209 and on the side adjacent to the vertical bracket 201, which fits the outer periphery of the upper pipe 10 and the lower pipe 11.

[0061] Specifically, during the pipe connection process, the upper pipe 10 and the lower pipe 11 are preliminarily positioned respectively by the upper and lower guide brackets 208, and then the clamping device can clamp the upper pipe 10 and the lower pipe 11 more quickly and conveniently. More specifically, when the transverse saddle 211 and the longitudinal saddle 212 structure as in Example 5 are adopted, the arc opening 209 of the lower guide bracket 208 is first controlled in the XY plane by the transverse driver 215 and the longitudinal driver 218 to contact the lower connecting pipe 11, and then the arc opening 209 is used to guide the arc retaining ring 210 to contact the lower connecting pipe 11. At this time, the lower arm 7 and the lower bracket are in a relatively close position, and then the lower arm 7 is controlled to descend to the top of the lower clamping device 8 to clamp and fix the lower connecting pipe 11 by the method in Example 2; then the upper connecting pipe 10 is lifted by the lifting device method in Example 1 until the upper connecting pipe 10 is close to the upper guide bracket 208 and the arc retaining ring 210 contacts the upper connecting pipe 10. At this time, the upper connecting pipe 10 and the first upper arm 3 and the second upper arm 5 are in a relatively close position, and then the upper connecting pipe 10 is clamped and fixed by the first upper clamping device 4 and the second upper clamping device 6 more quickly.

[0062] Example 5

[0063] The fixed seat 2 also includes a transverse sliding saddle 211, a longitudinal sliding saddle 212 and a saddle 213. The saddle 213 is fixedly arranged on the offshore platform 1. The transverse sliding saddle 211 is arranged on the saddle 213 for transverse sliding sliding. The longitudinal sliding saddle 212 is arranged on the transverse sliding saddle 211 for longitudinal sliding sliding. The vertical bracket 201 is fixedly arranged on the longitudinal sliding saddle 212. A transverse guide rail 214 and a transverse driver 215 are arranged on the saddle 213. A transverse slider 216 is arranged at the bottom of the transverse sliding saddle 211. The transverse slider 216 slides in the transverse guide rail 214 and is connected to the transverse driver 215. A longitudinal guide rail 217 and a longitudinal driver 218 are arranged on the transverse sliding saddle 211. A longitudinal slider 219 is arranged at the bottom of the longitudinal sliding saddle 212. The longitudinal slider 219 slides in the longitudinal guide rail 217 and is connected to the longitudinal driver 218.

[0064] Specifically, the saddle 213 is fixed, and the transverse saddle 211 and the longitudinal saddle 212 are respectively slidably arranged along the XY direction to adjust the position of the upper and lower guide brackets 208 and the position of the vertical bracket 201 to make them closer to the pipe connection position. The transverse driver 215 and the longitudinal driver 218 are, for example, motor screw structures, with a screw rod arranged in the guide rail, a screw nut arranged on the screw rod and connected to the transverse saddle 211 or the longitudinal saddle 212 as a corresponding transverse slider 216 or a longitudinal slider 219, so that the corresponding direction movement of the transverse saddle 211 or the longitudinal saddle 212 is independently controlled by two motors.

[0065] Working mode and principle of the present invention:

[0066] First, the arc-shaped opening 209 of the lower guide bracket 208 is controlled in the XY plane by the transverse driver 215 and the longitudinal driver 218 to contact the lower connecting pipe 11 until the arc-shaped retaining ring 210 contacts the lower connecting pipe 11, and then the lower clamping device 8 clamps and fixes the top of the lower connecting pipe 11; then the upper connecting pipe 10 is lifted by the lifting device until the upper connecting pipe 10 is close to the upper guide bracket 208 and the arc-shaped retaining ring 210 contacts the upper connecting pipe 10, and then the first upper clamping device 4 and the second upper clamping device 6 clamp and fix the upper connecting pipe 10; then the angle of the upper connecting pipe 10 is adjusted by the first upper arm 3 and the angle adjustment mechanism 9 until it is aligned with the angle of the lower connecting pipe 11, the first upper clamping device 4 is released, and the second upper clamping device 6 rotates and moves downward to thread the upper connecting pipe 10 with the lower connecting pipe 11. After connecting an upper connecting pipe 10 with a lower connecting pipe 11, the lower clamping device 8 releases the original lower connecting pipe 11, the first upper clamping device 4 and the second upper clamping device 6 clamp the original upper connecting pipe 10 and move it down to the sea surface to become a new lower connecting pipe 11, and then the lower clamping device 8 clamps the new lower connecting pipe 11, and the upper clamping device releases and moves up to clamp the new upper connecting pipe 10 that is replaced alternately, and then the connecting is carried out to achieve continuous and stable connecting.

[0067] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An offshore pipe anti-swaying pipe connection device for ocean temperature difference energy power generation, characterized in that: include: Fixed seat, installed on the offshore platform; A first upper arm, wherein the inner end of the first upper arm is connected to the fixing seat, and the outer end of the first upper arm is connected to a first upper clamping device; A second upper arm, wherein the inner end of the second upper arm is connected to the fixing seat, and the outer end of the second upper arm is connected to a second upper clamping device; A lower arm, the inner end of which is connected to the fixing seat, and the outer end of which is connected to a lower clamping device; The first upper clamping device and the second upper clamping device are respectively clamped at different axial positions outside the upper connecting pipe at intervals, and the lower clamping device is clamped outside the lower connecting pipe.

2. The marine temperature difference energy power generation offshore pipe anti-swaying pipe connection device according to claim 1 is characterized in that: The fixing seat comprises a vertical bracket, and the inner ends of the first upper arm, the second upper arm and the lower arm are all connected to the vertical bracket in a slidable manner up and down.

3. The marine temperature difference energy power generation offshore pipe anti-swaying pipe connection device according to claim 2 is characterized in that: The vertical bracket is provided with an upper arm guide rail and a lower arm guide rail, an upper slider connecting the first upper arm and the second upper arm is slidably provided in the upper arm guide rail, and a lower slider connecting the lower arm is slidably provided in the lower arm guide rail; The upper slider is connected to the first linear drive, and the lower slider is connected to the second linear drive.

4. The marine temperature difference energy power generation offshore pipe anti-swaying pipe connecting device according to claim 3 is characterized in that: The first upper arm and the second upper arm are connected via an angle adjustment mechanism, and the angle adjustment mechanism is connected to the upper slider; The angle adjustment mechanism includes a shell, in which meshing gears and gear fans are rotatably arranged, the gears are connected to a first rotation driving device, the gear fans are connected to the first upper arm, and the toothed shaft of the gear fans is rotatably connected to the second upper arm.

5. The marine temperature difference energy power generation offshore pipeline anti-swaying pipe connecting device according to claim 4 is characterized in that: The first upper arm comprises a first telescopic support arm, and the first telescopic support arm is movably connected to the first upper clamping device; The second upper arm includes a second telescopic support arm and a rotating support arm. The second telescopic support arm is movably connected to the second upper clamping device. The second telescopic support arm is connected to the tooth portion rotating shaft of the gear fan through the rotating support arm.

6. The marine temperature difference energy power generation offshore pipe anti-swaying pipe connection device according to claim 1, characterized in that: The first upper clamping device and the lower clamping device respectively include clamping claws; The second upper clamping device includes an outer rail of an annular structure and a clamping ring, the inner side of the clamping ring clamps the lower end of the upper pipe, the outer side of the clamping ring is rotatably connected to the outer rail, and the outer side of the outer rail is movably connected to the second upper arm.

7. The marine temperature difference energy power generation offshore pipe anti-swaying pipe connection device according to claim 6 is characterized in that: The clamping ring is provided with annularly distributed bevel teeth, and the outer rail is provided with a second rotation driving device, which is meshed with the bevel teeth on the clamping ring through a bevel gear.

8. The marine temperature difference energy power generation offshore pipe anti-swaying pipe connection device according to claim 2 is characterized in that: The bottom and top ends of the vertical bracket are respectively provided with guide brackets, and the side of the guide bracket away from the vertical bracket is provided with two arc-shaped openings opening outward, and the side between the two arc-shaped openings and adjacent to the vertical bracket is provided with an arc-shaped retaining ring that fits the outer periphery of the upper pipe and the lower pipe.

9. The marine temperature difference energy power generation offshore pipe anti-swaying pipe connection device according to claim 2, characterized in that: The fixed seat also includes a transverse sliding saddle, a longitudinal sliding saddle and a saddle. The saddle is fixedly set on the offshore platform, the transverse sliding saddle is set on the saddle for transverse sliding, the longitudinal sliding saddle is set on the transverse sliding saddle for longitudinal sliding, and the vertical bracket is fixedly set on the longitudinal sliding saddle.

10. The marine temperature difference energy power generation offshore pipeline anti-swaying pipe connecting device according to claim 9, characterized in that: The saddle is provided with a transverse guide rail and a transverse driver, and the bottom of the transverse slide saddle is provided with a transverse slider, which slides in the transverse guide rail and is connected to the transverse driver; The transverse slide saddle is provided with a longitudinal guide rail and a longitudinal driver, and the bottom of the longitudinal slide saddle is provided with a longitudinal slider, which slides in the longitudinal guide rail and is connected to the longitudinal driver.

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