CN216922081U

CN216922081U - Plug valve with good sealing performance for fracturing wellhead

Info

Publication number: CN216922081U
Application number: CN202123279833.0U
Authority: CN
Inventors: 徐荣华
Original assignee: Yancheng Lilin Petroleum Machinery Co ltd
Current assignee: Yancheng Lilin Petroleum Machinery Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-07-08
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a plug valve for a fracturing wellhead with good sealing performance, which belongs to the technical field of plug valves and comprises a plug valve base body, wherein a multi-angle adjusting type mounting and positioning mechanism is symmetrically arranged on two sides of the outer surface of the plug valve base body, an extruding fixed type sealing mechanism is symmetrically arranged on one end surface of the multi-angle adjusting type mounting and positioning mechanism, fixing rings are symmetrically arranged on two sides of the outer surface of the plug valve base body, and positioning holes are equidistantly formed in one end of each fixing ring. And the leakage phenomenon between the flange and the plug valve base body is prevented.

Description

Plug valve with good sealing performance for fracturing wellhead

Technical Field

The utility model relates to the technical field of plug valves, in particular to a plug valve with good sealing performance for a fracturing wellhead.

Background

The plug valve is a rotary valve in a closing member or plunger shape, and the opening or closing of the valve is realized by rotating 90 degrees to ensure that a passage port on the plug valve is communicated with or separated from a passage port on the valve body; whereas in a tapered plug the passageway is trapezoidal. These shapes make the construction of the plug valve light and most suitable for use as a cut-off and cut-in medium and a shunt, but may also be used for throttling depending on the nature of the application and the erosion resistance of the sealing surfaces.

But current plug valve be not convenient for and be connected between the plane to lead to being connected between plug valve is direct and two pipelines, this mode neither is convenient for fix a position the plug valve, and is not convenient for install the plug valve, has increased the installation degree of difficulty of plug valve, easily leads to the plug valve after the installation unstable simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a plug valve for a fracturing wellhead with good sealing performance, and aims to solve the problems that the plug valve is inconvenient to connect with a plane in the background technology, so that the plug valve is directly connected with two pipelines, the plug valve is inconvenient to position and install, the installation difficulty of the plug valve is increased, and the installed plug valve is easy to be unstable.

In order to solve the technical problems, the utility model provides the following technical scheme: the plug valve for the fracturing wellhead with good sealing performance comprises a plug valve base body, wherein multi-angle adjusting type mounting and positioning mechanisms are symmetrically mounted on two sides of the outer surface of the plug valve base body and comprise fixing rings, positioning holes, fixing bolts, rotating rings, supporting frames, screw rods, moving strips and fixing screws;

the plug valve is characterized in that fixing rings are symmetrically arranged on two sides of the outer surface of a plug valve base body, positioning holes are formed in one ends of the fixing rings at equal intervals, fixing bolts are connected to the middle of the inner wall of each positioning hole through threads, rotating rings are connected to the outer surfaces of a plurality of fixing bolts through threads, a supporting frame is welded to the bottom of the outer surface of each rotating ring, lead screws are symmetrically connected to two sides of the inner wall of each supporting frame through threads, the bottom ends of the two lead screws are connected through a moving strip, and two sides of the top end of each moving strip are symmetrically connected with fixing screws through threads; one end face of the multi-angle adjusting type mounting and positioning mechanism is symmetrically provided with an extrusion fixed type sealing mechanism, and the extrusion fixed type sealing mechanism comprises a spring column, a moving ring, a groove, a sealing gasket, a limiting groove, a spring rod and a moving block;

the spring post is installed to rotating ring terminal surface symmetry, and is a plurality of connect through the shift ring between the spring post one end, recess has been seted up at shift ring inner wall middle part, the sealed pad that bonds in recess inner wall middle part, spacing groove has been seted up to shift ring terminal surface equidistance, spacing groove one end fixed mounting has the spring beam, spring beam one end is located spacing inslot portion department and installs the movable block.

Preferably, remove and be connected through the bearing between strip and the lead screw, connect through interference fit between lead screw and the bearing, the rotation of lead screw can be convenient for, has reduced the rotation degree of difficulty of lead screw.

Preferably, the round hole has been seted up to swivel collar terminal surface equidistance, the external diameter of round hole equals the external diameter of locating hole, rotate between swivel collar and the plug valve base member and connect, can be convenient for rotate the fixed between collar and the plug valve base member, reduced the fixed degree of difficulty between plug valve base member and the swivel collar.

Preferably, the moving block is slidably connected with the moving ring through a limiting groove, and an inclined groove is formed in one end face of the moving block, so that the moving block can move conveniently, the moving difficulty of the moving block is reduced, and the moving block can be limited.

Compared with the prior art, the utility model has the following beneficial effects:

1. through the fixed sealing mechanism of extrusion, the secondary of being convenient for between flange and the plug valve base member is fixed, prevents to take place fixed unstable phenomenon between flange and the plug valve base member, can protect the nut of junction one side between flange and the plug valve base member simultaneously, has reduced external water stain to the interference of coupling nut between flange and the plug valve base member to can seal flange and plug valve base member junction, prevent the phenomenon of taking place to leak between flange and the plug valve base member.

2. Through the multi-angle regulation formula installation positioning mechanism, can be convenient for fix the plug valve base member, prevent that the phenomenon that the position of plug valve base member from taking place to remove, can support the plug valve base member simultaneously, increased the holding power of plug valve base member to be convenient for the connection between plug valve base member and another pipeline.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the mounting structure of the multi-angle adjustable mounting and positioning mechanism of the present invention;

FIG. 3 is a schematic view of the installation structure of the extrusion-fixed sealing mechanism of the present invention

In the figure: 1. a plug valve base body;

2. the multi-angle adjustable type mounting and positioning mechanism is arranged; 201. a fixing ring; 202. positioning holes; 203. a fixing bolt; 204. a rotating ring; 205. a support frame; 206. a screw rod; 207. a moving bar; 208. fixing the screw rod;

3. a fixed extrusion type sealing mechanism; 301. a spring post; 302. a moving ring; 303. a groove; 304. a gasket; 305. A limiting groove; 306. a spring lever; 307. moving the mass.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides the following technical solutions: the plug valve for the fracturing wellhead that the leakproofness is good includes plug valve base member 1, and multi-angle regulation formula installation positioning mechanism 2 is installed to 1 surface bilateral symmetry of plug valve base member.

The multi-angle adjustable mounting and positioning mechanism 2 comprises a fixing ring 201, a positioning hole 202, a fixing bolt 203, a rotating ring 204, a supporting frame 205, a screw rod 206, a moving strip 207 and a fixing screw 208;

the two sides of the outer surface of the plug valve base body 1 are symmetrically provided with fixed rings 201, one end of each fixed ring 201 is equidistantly provided with a positioning hole 202, the middle part of the inner wall of each positioning hole 202 is connected with a fixed bolt 203 through a thread, the outer surface of each fixed bolt 203 is connected with a rotating ring 204 through a thread, one end face of each rotating ring 204 is equidistantly provided with a round hole, the outer diameter of each round hole is equal to the outer diameter of each positioning hole 202, the rotating rings 204 and the plug valve base body 1 are rotatably connected, so that the rotating rings 204 and the plug valve base body 1 can be conveniently fixed, the fixing difficulty between the plug valve base body 1 and the rotating rings 204 is reduced, the bottom parts of the outer surfaces of the rotating rings 204 are welded with support frames 205, the two sides of the inner walls of the support frames 205 are symmetrically connected with screw rods 206 through threads, the bottom ends of the two screw rods 206 are connected through moving strips 207, the moving strips 207 are connected with the screw rods 206 through bearings, and the screw rods 206 are connected through interference fit, the rotation of lead screw 206 can be convenient for, the rotation degree of difficulty of lead screw 206 has been reduced, removes the equal symmetry of strip 207 top both sides and passes through threaded connection set screw 208.

One end face of the multi-angle adjusting type mounting and positioning mechanism 2 is symmetrically provided with an extrusion fixed type sealing mechanism 3, and the extrusion fixed type sealing mechanism 3 comprises a spring column 301, a moving ring 302, a groove 303, a sealing gasket 304, a limiting groove 305, a spring rod 306 and a moving block 307;

spring posts 301 are symmetrically installed on one end face of the rotating ring 204, a plurality of spring posts 301 are connected through a moving ring 302, a groove 303 is formed in the middle of the inner wall of the moving ring 302, a sealing gasket 304 is bonded in the middle of the inner wall of the groove 303, a limiting groove 305 is formed in one end face of the moving ring 302 at an equal distance, a spring rod 306 is fixedly installed at one end of the limiting groove 305, a moving block 307 is installed at the position, located inside the limiting groove 305, of one end of the spring rod 306, the moving block 307 is slidably connected with the moving ring 302 through the limiting groove 305, an inclined groove is formed in one end face of the moving block 307, movement of the moving block 307 can be facilitated, the moving difficulty of the moving block 307 is reduced, and meanwhile, the moving block 307 can be limited.

The working principle of the utility model is as follows: the user rotates swivel ring 204 along plug valve base member 1 surface, swivel ring 204 rotates when locating to predetermined position in advance, the user connects solid fixed ring 201 and swivel ring 204 through gim peg 203, then the user rotates lead screw 206 along support frame 205 inside, lead screw 206 drives removal strip 207 and removes when rotating, removal strip 207 removes and when the plane laminating, the user extrudees fixedly to removal strip 207 through set screw 208, thereby can fix plug valve base member 1, can be convenient for fix plug valve base member 1, prevent that the phenomenon that the position of plug valve base member 1 from taking place to remove, can support plug valve base member 1 simultaneously, the holding power of plug valve base member 1 has been increased, and be convenient for connect between plug valve base member 1 and another pipeline.

The user then pulls on the shift ring 302, which shift ring 302 moves, causing the spring post 301 to stretch, and now move along the outside of the flange attached to the plug valve base 1, then, when the sealing gasket 304 in the groove 303 enters the joint of the flange and the plug valve base body 1, the tension of the spring rod 306 drives the moving block 307 to move, the back of the moving block 307 enters into one end face of the flange, so that secondary fixation between the flange and the plug valve base body 1 can be facilitated, the phenomenon of unstable fixation between the flange and the plug valve base body 1 is prevented, meanwhile, the nut at one side of the joint between the flange and the plug valve base body 1 can be protected, the interference of external water stain on the nut connected between the flange and the plug valve base body 1 is reduced, and can seal flange and 1 junction of plug valve base member, prevent the phenomenon of leaking between flange and the plug valve base member 1.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Good fracturing well head of leakproofness is with plug valve, including plug valve base member (1), its characterized in that: the plug valve is characterized in that multi-angle adjusting type mounting and positioning mechanisms (2) are symmetrically mounted on two sides of the outer surface of the plug valve base body (1), and each multi-angle adjusting type mounting and positioning mechanism (2) comprises a fixing ring (201), a positioning hole (202), a fixing bolt (203), a rotating ring (204), a supporting frame (205), a screw rod (206), a moving strip (207) and a fixing screw rod (208);

the plug valve is characterized in that fixing rings (201) are symmetrically installed on two sides of the outer surface of a plug valve base body (1), positioning holes (202) are formed in one end of each fixing ring (201) at equal intervals, fixing bolts (203) are connected to the middle of the inner wall of each positioning hole (202) through threads, rotating rings (204) are connected to the outer surfaces of a plurality of fixing bolts (203) through threads, supporting frames (205) are welded to the bottoms of the outer surfaces of the rotating rings (204), lead screws (206) are symmetrically connected to the two sides of the inner wall of each supporting frame (205) through threads, the bottom ends of the two lead screws (206) are connected through a moving strip (207), and fixing screws (208) are symmetrically connected to the two sides of the top end of each moving strip (207) through threads;

one end face of the multi-angle adjusting type mounting and positioning mechanism (2) is symmetrically provided with an extrusion fixed type sealing mechanism (3), and the extrusion fixed type sealing mechanism (3) comprises a spring column (301), a moving ring (302), a groove (303), a sealing gasket (304), a limiting groove (305), a spring rod (306) and a moving block (307);

spring post (301) are installed to rotating ring (204) one end face symmetry, and is a plurality of connect through shift ring (302) between spring post (301) one end, shift ring (302) inner wall middle part is seted up flutedly (303), recess (303) inner wall middle part bonds has sealed pad (304), spacing groove (305) have been seted up to shift ring (302) one end equidistance, spacing groove (305) one end fixed mounting has spring beam (306), spring beam (306) one end is located spacing groove (305) internal position department and installs movable block (307).

2. The plug valve for the fracturing wellhead with good sealing performance according to claim 1, characterized in that: the moving strip (207) is connected with the screw rod (206) through a bearing, and the screw rod (206) is connected with the bearing through interference fit.

3. The plug valve for the fracturing wellhead with good sealing performance according to claim 1, characterized in that: the round hole has been seted up to swivel collar (204) a terminal surface equidistance, the external diameter of round hole equals the external diameter of locating hole (202), swivel collar (204) and plug valve base member rotate between (1) and be connected.

4. The plug valve for the fracturing wellhead with good sealing performance according to claim 1, characterized in that: the moving block (307) is connected with the moving ring (302) in a sliding mode through a limiting groove (305), and an inclined groove is formed in one end face of the moving block (307).