CN214997562U

CN214997562U - Integrated annular ram blowout preventer

Info

Publication number: CN214997562U
Application number: CN202121543624.XU
Authority: CN
Inventors: 王立兵; 刘海明; 王子明; 苏友; 韩立志
Original assignee: Yancheng Baixin Petroleum Machinery Co ltd
Current assignee: Yancheng Baixin Petroleum Machinery Co ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2021-12-03
Anticipated expiration: 2031-07-08

Abstract

The utility model discloses an integral type annular flashboard preventer, including the hydraulic cylinder, connecting block and casing, the internally mounted of casing has the pipeline, the connecting block is all installed to the both sides of casing, the top and the bottom of connecting block one side all are provided with the dismouting structure, the dismouting structure is including the spiral shell piece, first preformed hole, screw rod and second preformed hole, the top and the bottom at connecting block one side are all installed to the screw rod, first preformed hole is all installed in the outside of screw rod, the spiral shell piece is all installed to the one end of screw rod, and the second preformed hole is all installed in the outside of spiral shell piece, the hydraulic cylinder is all installed to one side of connecting block, the main piston is all installed to the inside of hydraulic cylinder. The utility model discloses a wearing layer and the anticorrosive coating of inboard installation of casing under the effect of wearing layer and anticorrosive coating, can strengthen the inside wear-resisting and corrosion resisting property of casing, the strengthening rib can strengthen the inboard intensity of casing, avoids the casing inboard to appear warping, improves the availability factor of casing.

Description

Integrated annular ram blowout preventer

Technical Field

The utility model relates to a petroleum machinery technical field, in particular to annular flashboard preventer of integral type.

Background

With the continuous improvement of economic level and the continuous development of petroleum industry, the requirements on petroleum machinery are continuously increased, and the annular ram blowout preventer is a key component of petroleum drilling control equipment and is mainly used for controlling wellhead pressure in the processes of drilling, repairing, testing oil and the like, so that blowout accidents are effectively prevented, and safe construction is realized.

The patent specification with the publication number CN204984336U discloses an integrated ram blowout preventer, which comprises a blowout preventer shell, a ram body assembly, a side door and a lead screw; the blowout preventer shell comprises a blowout preventer transverse shell and a blowout preventer longitudinal shell, and a plug and a balance valve are radially arranged on the outer side of the intersection part of the blowout preventer transverse shell and the blowout preventer longitudinal shell; the flashboard body assembly comprises a flashboard body, a flashboard outer sealing piece, a flashboard inner sealing piece and a protective sheet; the middle part of the side door is provided with a through hole in a penetrating way, and one end of the side door penetrates into the transverse shell of the blowout preventer and is connected with the flashboard guide rod; the screw rod penetrates through a through hole in the middle of the side door in a matching manner, one end of the screw rod is installed and connected in an annular groove in the outer wall of the brake plate body, and the other end of the screw rod penetrates out of the side door and is connected with a handle; and a screw supporting sealing element is also arranged between the screw and the through hole in the middle of the side door. The utility model has the advantages of simple and reasonable design, the installation is dismantled conveniently, and sealing performance is good, can be used to the well completion in-process and seal well head pressure, makes things convenient for the operation and the maintenance of upper portion equipment.

The prior art scheme among the above-mentioned has the weak point, and integral type annular ram preventer is not convenient for dismantle, has increased the dismantlement degree of difficulty to a certain extent, has reduced annular ram preventer's maintenance efficiency.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims at providing an integral type annular flashboard preventer for solve the defect that current integral type annular flashboard preventer is not convenient for dismantle.

(II) contents of utility model

In order to solve the technical problem, the utility model provides a following technical scheme: integral type annular flashboard preventer, including hydraulic cylinder, connecting block and casing, the internally mounted of casing has the pipeline, the connecting block is all installed to the both sides of casing, the top and the bottom of connecting block one side all are provided with the dismouting structure, the hydraulic cylinder is all installed to one side of connecting block, the main piston is all installed to the inside of hydraulic cylinder, and just one side of main piston all installs the piston rod, the gluey core is all installed to the one end of piston rod.

Preferably, the rubber cores are symmetrically arranged and are symmetrically distributed about the vertical center of the shell.

Preferably, the dismouting structure is including spiral shell piece, first preformed hole, screw rod and second preformed hole, the top and the bottom at connecting block one side are all installed to the screw rod, first preformed hole is all installed in the outside of screw rod, the spiral shell piece is all installed to the one end of screw rod, and the second preformed hole is all installed in the outside of spiral shell piece.

Preferably, the inner wall of the first preformed hole is provided with threads matched with the screw rod, and the inner wall of the second preformed hole is provided with threads matched with the screw block.

Preferably, the inboard of gluing the core all is provided with additional strengthening, additional strengthening is including wear-resisting piece, spacing groove and expanding spring, the inboard at gluing the core is all installed to the spacing groove, expanding spring is evenly installed to the inside of spacing groove, and wear-resisting piece is all installed to expanding spring's one end.

Preferably, one end of the wear-resistant block is arranged in the limiting groove, and the wear-resistant block and the telescopic spring form a telescopic structure.

Preferably, the inboard of casing is provided with protective structure, protective structure is including wearing layer, anticorrosive coating, enhancement layer and strengthening rib, the inboard at the casing is installed to the enhancement layer, the strengthening rib is evenly installed to the inside of enhancement layer, the anticorrosive coating is installed to the one end of enhancement layer, and the wearing layer is installed to the one end of anticorrosive coating.

Preferably, the reinforcing ribs are all located in the same horizontal plane, and the reinforcing ribs are arranged in the reinforcing layer at equal intervals.

(III) advantageous effects

The utility model provides an annular flashboard preventer of integral type, its advantage lies in:

(1) the screw rods are arranged at the top end and the bottom end of one side of the connecting block, the screw rods are rotated anticlockwise, and under the meshing action of the threads, the screw rods move along the direction of the first reserved hole, so that the screw rods are separated from the clamping limit of the screw blocks, the connecting block and the shell can be separated, the rubber cores are replaced, and the replacement efficiency is improved;

(2) the wear-resistant layer and the anticorrosive layer are arranged on the inner side of the shell, so that the wear resistance and the anticorrosive property of the inner part of the shell can be enhanced under the action of the wear-resistant layer and the anticorrosive layer, the strength of the inner side of the shell can be enhanced by the reinforcing ribs, the deformation of the inner side of the shell is avoided, and the use efficiency of the shell is improved;

(3) through the expanding spring of gluing the inboard even installation of core, utilize expanding spring's elasticity for wear-resisting piece can carry out inseparable laminating with the tubular column, improves sealed effect, and wear-resisting piece is made by wear-resisting material simultaneously, can strengthen the inboard wear resistance of gluey core.

Drawings

In order to more clearly illustrate the embodiments of the present invention 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, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

FIG. 2 is a schematic view of the three-dimensional structure of the rubber core of the present invention;

fig. 3 is a schematic view of a partial structure of the protective structure of the present invention;

fig. 4 is an enlarged schematic structural view of a point a in fig. 1 according to the present invention;

fig. 5 is a schematic top view of the reinforcing structure of the present invention.

The reference numerals in the figures illustrate: 1. a hydraulic cylinder; 2. connecting blocks; 3. a piston rod; 4. a rubber core; 5. a disassembly and assembly structure; 501. a screw block; 502. a first preformed hole; 503. a screw; 504. a second preformed hole; 6. a primary piston; 7. a pipeline; 8. a housing; 9. a reinforcing structure; 901. a wear-resistant block; 902. a limiting groove; 903. a tension spring; 10. a protective structure; 1001. a wear layer; 1002. an anticorrosive layer; 1003. a reinforcing layer; 1004. and (5) reinforcing ribs.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an integrated embodiment: an integrated annular ram blowout preventer comprises a hydraulic cylinder 1, a connecting block 2 and a shell 8, wherein a pipeline 7 is arranged inside the shell 8, the connecting block 2 is arranged on both sides of the shell 8, a dismounting structure 5 is arranged on both the top end and the bottom end of one side of the connecting block 2, the dismounting structure 5 comprises a screw block 501, a first reserved hole 502, a screw 503 and a second reserved hole 504, the screw 503 is arranged on both the top end and the bottom end of one side of the connecting block 2, the first reserved hole 502 is arranged on the outer side of the screw 503, the screw block 501 is arranged at one end of the screw 503, the second reserved hole 504 is arranged on the outer side of the screw block 501, the inner wall of the first reserved hole 502 is provided with threads matched with the screw 503, the inner wall of the second reserved hole 504 is provided with threads matched with the screw block 501, dismounting and counterclockwise rotation of the screw 503 are convenient, under the meshing action of the threads, the screw 503 moves along the direction of the first reserved hole 502, the screw 503 is separated from the clamping limit of the screw 501, so that the connecting block 2 and the shell 8 can be separated, the rubber core 4 is replaced, and the replacement efficiency is improved;

the hydraulic cylinder 1 is arranged on one side of the connecting block 2, the main piston 6 is arranged in the hydraulic cylinder 1, the piston rod 3 is arranged on one side of the main piston 6, the rubber cores 4 are arranged at one ends of the piston rods 3 symmetrically, the rubber cores 4 are distributed symmetrically about the vertical center of the shell 8, the protective structure 10 is arranged on the inner side of the shell 8, the protective structure 10 comprises a wear-resistant layer 1001, an anti-corrosion layer 1002, a reinforcing layer 1003 and reinforcing ribs 1004, the reinforcing layer 1003 is arranged on the inner side of the shell 8, the reinforcing ribs 1004 are uniformly arranged in the reinforcing layer 1003, the anti-corrosion layer 1002 is arranged at one end of the reinforcing layer 1003, the wear-resistant layer 1001 is arranged at one end of the anti-corrosion layer 1002, the reinforcing ribs 1004 are all positioned in the same horizontal plane, the reinforcing ribs 1004 are arranged in the reinforcing layer 1003 at equal intervals, a certain protection effect is achieved, and the wear-resistant and anti-corrosion performances of the inner part of the shell 8 can be enhanced through the effects of the wear-resistant layer 1001 and the anti-corrosion layer 1002, the reinforcing ribs 1004 can enhance the strength of the inner side of the shell 8, avoid the deformation of the inner side of the shell 8 and improve the use efficiency of the shell 8;

the inner side of the rubber core 4 is provided with a reinforcing structure 9, the reinforcing structure 9 comprises a wear-resistant block 901, a limiting groove 902 and a telescopic spring 903, the limiting groove 902 is arranged on the inner side of the rubber core 4, the telescopic spring 903 is uniformly arranged in the limiting groove 902, the wear-resistant block 901 is arranged at one end of the telescopic spring 903, one end of the wear-resistant block 901 is arranged in the limiting groove 902, the wear-resistant block 901 and the telescopic spring 903 form a telescopic structure, the sealing effect is improved, when well kick needs to be sealed, high-pressure oil conveyed from a hydraulic control system enters a closed cavity of the hydraulic cylinder 1 to push the main piston 6 and the piston rod 3, so as to drive the rubber core 4 to move, the wear-resistant block 901 can be tightly attached to a pipe column by utilizing the flexibility of the telescopic spring 903, a sealed space is formed between the rubber core 4 and the pipe column, the purpose of well sealing is achieved, and the wear-resistant block 901 is made of a wear-resistant material, the wear resistance of the inner side of the rubber core 4 can be enhanced.

The working principle is as follows: when the device is used, an external power supply is adopted, firstly, when a well kick needs to be sealed, high-pressure oil conveyed from a hydraulic control system enters a closed cavity of the hydraulic cylinder 1 to push the main piston 6 and the piston rod 3, so that the rubber core 4 is driven to move, the wear-resistant block 901 can be tightly attached to a pipe column by utilizing the flexibility of the telescopic spring 903, a sealed space is formed between the rubber core 4 and the pipe column, the well sealing purpose is achieved, and meanwhile, the wear-resistant block 901 is made of wear-resistant materials, so that the wear resistance of the inner side of the rubber core 4 can be enhanced;

secondly, the wear-resisting and corrosion-resisting properties inside the shell 8 can be enhanced through the effects of the wear-resisting layer 1001 and the corrosion-resisting layer 1002, the strength of the inner side of the shell 8 can be enhanced through the reinforcing ribs 1004, the deformation of the inner side of the shell 8 is avoided, and the use efficiency of the shell 8 is improved;

finally, the screw 503 is rotated counterclockwise, and under the meshing action of the threads, the screw 503 moves along the direction of the first preformed hole 502, so that the screw 503 is separated from the clamping limit of the screw 501, the connecting block 2 and the shell 8 can be separated, the rubber core 4 can be replaced, and the replacement efficiency is improved.

The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. Integral type annular ram preventer, including hydraulic cylinder (1), connecting block (2) and casing (8), its characterized in that: a pipeline (7) is arranged in the shell (8), and connecting blocks (2) are arranged on two sides of the shell (8);

the top end and the bottom end of one side of the connecting block (2) are respectively provided with a dismounting structure (5), and one side of the connecting block (2) is respectively provided with a hydraulic cylinder (1);

the inside of hydraulic cylinder (1) all installs master piston (6), and piston rod (3) are all installed to one side of master piston (6), rubber core (4) are all installed to the one end of piston rod (3).

2. The integrated annular ram blowout preventer of claim 1, wherein: the rubber cores (4) are symmetrically arranged, and the rubber cores (4) are symmetrically distributed about the vertical center of the shell (8).

3. The integrated annular ram blowout preventer of claim 1, wherein: dismouting structure (5) are including spiral shell piece (501), first preformed hole (502), screw rod (503) and second preformed hole (504), top and bottom in connecting block (2) one side are all installed in screw rod (503), first preformed hole (502) are all installed in the outside of screw rod (503), spiral shell piece (501) are all installed to the one end of screw rod (503), and second preformed hole (504) are all installed in the outside of spiral shell piece (501).

4. The integrated annular ram blowout preventer of claim 3, wherein: the inner wall of the first preformed hole (502) is provided with threads matched with the screw rod (503), and the inner wall of the second preformed hole (504) is provided with threads matched with the screw block (501).

5. The integrated annular ram blowout preventer of claim 1, wherein: the rubber core is characterized in that reinforcing structures (9) are arranged on the inner sides of the rubber cores (4), each reinforcing structure (9) comprises a wear-resistant block (901), a limiting groove (902) and an expansion spring (903), the limiting grooves (902) are all installed on the inner sides of the rubber cores (4), the expansion springs (903) are evenly installed inside the limiting grooves (902), and the wear-resistant blocks (901) are all installed at one ends of the expansion springs (903).

6. The integrated annular ram blowout preventer of claim 5, wherein: one end of the wear-resistant block (901) is arranged in the limiting groove (902), and the wear-resistant block (901) and the telescopic spring (903) form a telescopic structure.

7. The integrated annular ram blowout preventer of claim 1, wherein: the utility model discloses a novel anti-corrosion coating, including casing (8), the inboard of casing (8) is provided with protective structure (10), protective structure (10) are including wearing layer (1001), anticorrosive coating (1002), enhancement layer (1003) and strengthening rib (1004), the inboard at casing (8) is installed in enhancement layer (1003), strengthening rib (1004) are evenly installed to the inside of enhancement layer (1003), anticorrosive coating (1002) are installed to the one end of enhancement layer (1003), and wearing layer (1001) are installed to the one end of anticorrosive coating (1002).

8. The integrated annular ram blowout preventer of claim 7, wherein: the reinforcing ribs (1004) are all located in the same horizontal plane, and the reinforcing ribs (1004) are arranged in the reinforcing layer (1003) at equal intervals.