CN214530673U

CN214530673U - Combined packer

Info

Publication number: CN214530673U
Application number: CN202120540742.9U
Authority: CN
Inventors: 孙建帮; 赵贵英; 张亚生; 马美琴; 石臣刚; 雷永霄; 张东泽; 尹婷; 刘保权
Original assignee: Sino Rubber Technology Co ltd
Current assignee: Sino Rubber Technology Co ltd
Priority date: 2021-03-16
Filing date: 2021-03-16
Publication date: 2021-10-29
Anticipated expiration: 2031-03-16
Also published as: AU2021101538A4

Abstract

The utility model discloses a combined type packer relates to offshore wind power technical field, and in combined type packer located the annular gap between steel-pipe pile and the sleeve, combined type packer included: the flexible sealing part is sleeved in the annular gap, the upper edge and the lower edge of the flexible sealing part are fixedly connected with the outer wall of the sleeve respectively, the flexible sealing part and the outer wall of the sleeve enclose a cavity, a through hole communicated with the cavity is formed between the upper edge of the flexible sealing part and the outer wall of the sleeve, and the expansion sealing part is arranged in the cavity. The utility model discloses a synthetic cavity is enclosed with sleeve outer wall to flexible seal spare, through be provided with the inflation sealing member in the cavity, wherein, the inflation sealing member comprises utricule and water-swelling core, and the utricule has the water permeability, meets the sea water emergence inflation in the steel-pipe pile at water-swelling core, and the water-swelling core is pushed utricule and flexible sealing ring board to the inner wall of steel-pipe pile after the inflation, realizes sealing between sleeve outer wall and the steel-pipe pile inner wall.

Description

Combined packer

Technical Field

The utility model relates to an offshore wind power technology field, more specifically the utility model relates to a combined type packer that says so.

Background

At present, a pile foundation fixing mode is adopted in the field of offshore wind power, a steel pipe pile is firstly driven into a seabed for fixing, a jacket (sleeve) is lifted, the tail end of a jacket supporting leg is inserted into a port of the steel pipe pile, the jacket is laid, leveled and grouted, the steel pipe pile and the jacket supporting leg are bonded together by using cement paste, a packer mainly seals a gap between the steel pipe pile and the supporting leg before the cement paste is solidified, the cement paste is prevented from flowing out, and the bonding is not firm and materials such as the cement paste are wasted. When the steel pipe pile with the diameter more than 3m is fixed, the weight of the steel pipe pile is overlarge and exceeds the technical requirement of hoisting of a marine lifting appliance, a segmented construction mode is generally adopted, firstly, the submarine steel pipe pile is fixed, after the fixing operation of the submarine steel pipe pile is completed, a connecting sleeve penetrates through the inside of the steel pipe pile, the steel pipe pile and the sleeve are connected and fixed through pouring cement slurry, then, a gap between the steel pipe pile and the sleeve needs to be sealed, and the phenomenon that the poured cement slurry flows into the seabed from the gap to cause the failure of the fixed connection between the steel pipe pile and the sleeve is avoided.

Therefore, how to provide a composite packer capable of sealing the gap between the steel pipe pile and the sleeve is a problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the utility model aims to provide a combined type packer solves among the prior art when steel-pipe pile and sleeve are through pouring grout fixed connection, and grout flows in the problem in seabed from the clearance between steel-pipe pile and the sleeve.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a combined type packer, combined type packer locates in the annular gap between steel-pipe pile and the sleeve, combined type packer includes: the flexible sealing part is sleeved in the annular gap, the upper edge and the lower edge of the flexible sealing part are fixedly connected with the outer wall of the sleeve respectively, the flexible sealing part and the outer wall of the sleeve enclose a cavity, a through hole communicated with the cavity is formed between the upper edge of the flexible sealing part and the outer wall of the sleeve, and the expansion sealing part is arranged in the cavity.

Furthermore, the flexible sealing part comprises a flexible strip, a flexible sealing ring plate and a T-shaped head, the flexible strip, the flexible sealing ring plate and the T-shaped head are sequentially spliced and integrally formed, and the flexible strip and the T-shaped head are respectively and fixedly connected with the outer wall of the sleeve.

Furthermore, a flange is arranged on the outer wall of the sleeve and consists of a plurality of convex blocks arranged along the circumferential direction of the sleeve at intervals, and the flexible strip is fixedly pressed on the convex blocks through a strip-shaped pressing plate.

Furthermore, still be equipped with fixed subassembly on telescopic outer wall, fixed subassembly includes backing plate ring and clamp plate ring, the backing plate ring with sleeve fixed connection, the clamp plate ring with backing plate ring fixed connection, the clamp plate ring with form between the backing plate ring with the T type groove of T type head joint.

Furthermore, the backing plate ring is sequentially spliced by a plurality of backing plates to form a circular ring structure, and the pressing plate ring is sequentially spliced by a plurality of pressing plates to form a circular ring structure.

Further, the inflation sealing member includes utricule and water inflation core, the utricule is located in the cavity, water inflation core is located in the utricule.

Furthermore, the flexible sealing device also comprises a guide ring plate, wherein the guide ring plate is fixedly connected with the outer wall of the sleeve, and the guide ring plate is arranged below the flexible sealing part.

The support part comprises a perforated ring plate and a rigid pressing plate, the perforated ring plate is fixedly connected with the top of the guide ring plate, and the rigid pressing plate is fixedly connected with the top of the perforated ring plate.

Further, the supporting part further comprises a flexible wear-resisting plate, a pressing groove is formed between the rigid pressing plate and the ring plate with the holes, the inner edge of the flexible wear-resisting plate is clamped in the pressing groove, and the outer edge of the flexible wear-resisting plate is in contact with the inner wall of the steel pipe pile.

Still further, the outer diameter of the flexible wear plate is larger than the inner diameter of the steel pipe pile.

Known from the technical scheme, compared with the prior art, the utility model discloses a composite packer is provided, through be provided with composite packer in the annular clearance between steel-pipe pile and sleeve, can realize the sealed between steel-pipe pile and the sleeve, enclose synthetic cavity through flexible seal spare and sleeve outer wall, and pour grout in the annular clearance, grout gets into the cavity through the through-hole between the upper edge of flexible seal spare and the outer wall of sleeve, through being provided with the inflation sealing member in the cavity, wherein, the inflation sealing member comprises utricule and water-swelling core, the utricule has the water permeability, meet the sea water that the steel-pipe pile was held in to the water-swelling core and take place the inflation, water-swelling core pushes utricule and flexible seal ring plate to the inner wall of steel-pipe pile after the inflation, realize the sealed between sleeve outer wall and the steel-pipe pile inner wall, prevent grout from flowing into the seabed from the annular clearance between steel-pipe pile and sleeve, simultaneously, the grout is full of the annular gap between steel-pipe pile and the sleeve, realize steel-pipe pile and telescopic fixed after solidifying, in addition, setting through the supporting part, along with the increase of the grout volume of pouring, flexible seal ring board moves down because of gravity, the setting of supporting part can play the supporting role to the flexible seal ring board that moves down, the external diameter through flexible antifriction plate is greater than the internal diameter of steel-pipe pile, in the sleeve gets into the steel-pipe pile, the edge kickup of flexible antifriction plate, realize the certain sealed of flexible antifriction plate and steel-pipe pile inner wall, some sea water still gets into and contacts with water-swelling core through the clearance between flexible antifriction plate and the steel-pipe pile, make water-swelling core take place the inflation.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a sectional view of the connection structure of the composite packer, the steel pipe pile and the sleeve provided by the present invention;

fig. 2 is a partial enlarged view of a in fig. 1 according to the present invention;

FIG. 3 is a schematic structural view of the connection between the composite packer and the sleeve provided by the present invention;

fig. 4 is a top view of fig. 3 provided by the present invention;

fig. 5 is a partial enlarged view of C in fig. 4 according to the present invention.

Wherein: 1 is a steel pipe pile; 2 is a sleeve; 3 is a composite packer; 31 is a flexible enclosure; 311 is a flexible strip; 312 is a flexible sealing ring plate; 313 is a T-shaped head; 32 is an inflatable seal; 321 is a capsule body; 322 is a water swellable core; 4 is a cavity; 5 is a through hole; 6 is a bump; 7 is a strip-shaped pressing plate; 8 is a fixed component; 81 is a backing plate; 82 is a pressure plate; 9 is a T-shaped groove; 10 is a guide ring plate; 11 is a supporting part; 111 is a perforated ring plate; 112 is a rigid platen; 113 is a flexible wear plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the embodiment of the utility model discloses a combined type packer, in combined type packer 3 was applied to the clearance between steel-pipe pile 1 and sleeve 2, sleeve 2's external diameter was less than steel-pipe pile 1's internal diameter, in telescopic end 2 stretched into steel-pipe pile 1, sleeve 2's outer wall and steel-pipe pile 1's inner wall formed the annular gap, combined type packer 3 set up in this annular gap, wherein, combined type packer 3 includes: the flexible sealing part 31 and the expansion sealing part 32, the flexible sealing part 31 is sleeved in the annular gap, the upper edge and the lower edge of the flexible sealing part 31 are respectively fixedly connected with the outer wall of the sleeve 2, the flexible sealing part 31 and the outer wall of the sleeve 2 enclose a cavity 4, a through hole 5 communicated with the cavity 4 is arranged between the upper edge of the flexible sealing part 31 and the outer wall of the sleeve 2, the expansion sealing part 32 is arranged in the cavity 4, wherein the expansion sealing part 32 comprises a bag body 321 and a water swelling core 322, the bag body 321 is arranged in the cavity 4, the bag body 321 is of an annular structure, the water swelling core 322 is arranged in the bag body 321, the bag body 321 has flexibility and water permeability, the bag body 321 can be made of woven cloth, woven net, non-woven cloth or other water permeable materials with small pores, the water swelling core 322 has a high expansion coefficient in seawater, the water swelling core 322 can be made of water swelling rubber or other water swelling materials, after the expansion, the balloon 321 has certain strength, and after the complete expansion, the balloon 321 also has certain strength, and the expanded balloon 321 can completely expand the flexible sealing part 31 and the outer wall of the sleeve 2 to form the cavity 4, and tightly push the flexible sealing part 31 on the inner wall of the steel pipe pile 1.

In this embodiment, the flexible sealing member 31 includes a flexible strip 311, a flexible sealing ring plate 312 and a T-shaped head 313, the flexible strip 311, the flexible sealing ring plate 312 and the T-shaped head 313 are sequentially spliced and integrally formed, the flexible sealing ring plate 312 and the sleeve 2 are coaxially disposed, the flexible sealing ring plate 312 is made of a material with good sealing performance and easy changeability, such as plastic, rubber, polyurethane and other high-molecular materials, a high-strength flexible framework is disposed inside the flexible sealing ring plate 312 to increase the strength and puncture resistance of the sealing ring plate 312, and the framework may be a high-molecular or metal framework; the plurality of flexible strips 311 are arranged at one end of the flexible sealing ring plate 312 in a shaft array manner, the flexible strips 311 have high tensile strength to bear the weight of cement slurry, can be made of high polymer materials with a framework, or fabrics made of materials such as fibers and steel wires, and the like, and simultaneously, the outer wall of the sleeve 2 is provided with a flange which is composed of a plurality of convex blocks 6 arranged at intervals along the circumferential direction of the sleeve 2, the number of the convex blocks 6 is equal to that of the flexible strips 311, the flexible strips 311 are pressed on the convex blocks 6 through strip-shaped pressing plates 7 and are fixedly connected with the convex blocks 6 through bolts, namely, the upper part of the flexible sealing part 31 adopts a discontinuous fixing mode, so that the upper end of the flexible sealing ring plate 312 is bent towards the sleeve 2 through the flexible strip 311, and through holes 5 for communicating the cavity 4 are formed between the plurality of lugs 6 arranged at intervals and the flexible sealing ring plate 312; the T-shaped head 313 is an annular body with the thickness larger than that of the flexible sealing ring plate 312, the annular body is fixedly connected with the other end of the flexible sealing ring plate 312, the radial section shape of the T-shaped head 313 connected with the flexible sealing ring plate 312 is a T-shaped structure, meanwhile, a fixing component 8 is further arranged on the outer wall of the sleeve 2, the fixing component 8 is positioned below the flange, the fixing component 8 comprises a backing plate ring and a pressure plate ring, the backing plate ring is fixedly connected with the outer wall of the sleeve 2, the pressure plate ring is fixedly connected with the backing plate ring through bolts, a T-shaped groove 9 clamped with the T-shaped head 313 is formed between the pressure plate ring and the backing plate ring, the backing plate ring is sequentially spliced into a circular ring structure by a plurality of backing plates 81 and is arranged on the outer wall of the sleeve 2, the pressure plate ring is sequentially spliced into a circular ring structure by a plurality of pressure plates 82 and is matched with the outer wall of the backing plate ring, and is fixedly connected with the T-shaped head 313 through the T-shaped groove 9 formed between the pressure plate ring and the backing plate ring, the lower end of the flexible sealing ring plate 312 is bent towards the sleeve 2 and the lower end of the flexible packing part 31 is completely fixed, so that the bottom of the flexible packing part 31 is completely sealed with the outer wall of the sleeve 2, and the poured cement slurry cannot flow out from the gap between the sleeve 2 and the flexible packing part 31.

In the above embodiment, the composite packer 3 further includes a guiding ring plate 10, the guiding ring plate 10 is fixedly connected to the outer wall of the sleeve 2, and the guiding ring plate 10 is disposed below the flexible packing member 31 and below the fixing assembly 8, wherein the guiding ring plate 10 is made of steel, and the guiding ring plate 10 is horizontally and vertically welded to the bottom of the outer wall of the sleeve 2.

In the above embodiment, the composite packer 3 further includes a support portion 11, the support portion 11 includes a perforated annular plate 111 and a rigid pressure plate 112, the perforated annular plate 111 is fixedly connected to the top of the guide annular plate 10 by welding, the rigid pressure plate 112 is fixedly connected to the top of the perforated annular plate 111, wherein the rigid pressure plate 112 is a steel plate or a high-strength polymer plate, and the outer diameter of the rigid pressure plate 112 is smaller than the outer diameter of the guide annular plate 10.

Specifically, supporting portion 11 still includes flexible antifriction plate 113, the suppression groove has between rigid clamp plate 112 and the foraminiferous crown plate 111, the suppression groove specifically sets up in rigid clamp plate 112 below and is close to one side of steel-pipe pile 1, the inward flange joint of flexible antifriction plate 113 is in suppressing the inslot, flexible antifriction plate 113 bonds together with rigid clamp plate 112, the external diameter of flexible antifriction plate 113 is greater than the internal diameter of steel-pipe pile 1, the outward flange of flexible antifriction plate 113 contacts with the inner wall of pile 1, play certain sealed effect, but some sea water still gets into and contacts with water inflation core 322 through the clearance between flexible antifriction plate 113 and the steel-pipe pile 1, make water inflation core 322 take place the inflation, wherein, the material of flexible antifriction plate 113 is the wear-resisting polymer material who contains the high-strength skeleton in for, such as rubber, polyurethane etc.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a combined type packer, combined type packer locates in the annular gap between steel-pipe pile and the sleeve, its characterized in that, combined type packer includes: the flexible sealing part is sleeved in the annular gap, the upper edge and the lower edge of the flexible sealing part are fixedly connected with the outer wall of the sleeve respectively, the flexible sealing part and the outer wall of the sleeve enclose a cavity, a through hole communicated with the cavity is formed between the upper edge of the flexible sealing part and the outer wall of the sleeve, and the expansion sealing part is arranged in the cavity.

2. The composite packer as claimed in claim 1, wherein the flexible packer comprises a flexible strip, a flexible sealing ring plate and a T-shaped head, the flexible strip, the flexible sealing ring plate and the T-shaped head are sequentially and integrally spliced, and the flexible strip and the T-shaped head are respectively and fixedly connected to the outer wall of the sleeve.

3. The composite packer as set forth in claim 2, wherein the sleeve has a flange on an outer wall thereof, the flange comprising a plurality of projections spaced circumferentially along the sleeve, the flexible strip being fixedly pressed against the projections by a strip-shaped pressing plate.

4. The combined packer as claimed in claim 2 or 3, wherein the outer wall of the sleeve is further provided with a fixing assembly, the fixing assembly comprises a backing plate ring and a pressing plate ring, the backing plate ring is fixedly connected with the sleeve, the pressing plate ring is fixedly connected with the backing plate ring, and a T-shaped groove clamped with the T-shaped head is formed between the pressing plate ring and the backing plate ring.

5. The composite packer as set forth in claim 4, wherein the pad ring is formed by sequentially joining a plurality of pads together in a circular ring structure, and the pressure plate ring is formed by sequentially joining a plurality of pressure plates together in a circular ring structure.

6. The composite packer of claim 1, wherein the inflatable seal includes a bladder disposed within the cavity and a water-swellable core disposed within the bladder.

7. The composite packer of claim 1, further comprising a guide ring plate fixedly attached to the outer wall of the sleeve, wherein the guide ring plate is disposed below the flexible packer.

8. The composite packer of claim 7, further comprising a support portion comprising a perforated ring plate fixedly attached to a top of the guide ring plate and a rigid pressure plate fixedly attached to a top of the perforated ring plate.

9. The composite packer of claim 8, wherein the support portion further comprises a flexible wear plate, the rigid pressure plate and the perforated ring plate have a pressing groove therebetween, an inner edge of the flexible wear plate is engaged in the pressing groove, and an outer edge of the flexible wear plate is in contact with an inner wall of the steel pipe pile.

10. The composite packer of claim 9, wherein the flexible wear plate has an outer diameter greater than an inner diameter of the steel pipe pile.