CN214838493U - Large valve with large drift diameter sand prevention structure for wellhead fracturing - Google Patents

Abstract

The utility model discloses a well head fracturing is with big latus rectum sand control structure big valve, including valve body and valve rod, the top of valve body is equipped with the valve rod, the outer wall of valve rod is equipped with quick return mechanism, quick return mechanism includes sleeve, annular, trapezoidal piece, the lantern ring, clockwork spring, draw-in groove, pawl subassembly, slider, spout, pressure spring, crown plate, stay cord, pull ring, fixed pulley and extension board, the sleeve is fixed to be cup jointed in the outer wall top of valve body, the annular has all been seted up to both sides about the telescopic inner wall. This big valve of big latus rectum sand control structure is used in well head fracturing, through the cooperation between valve body, valve rod and the quick return mechanism, make lantern ring and valve rod carry out quick clockwise rotation, need not that operating personnel is manual to carry out many rings of clockwise rotations to valve rod outside knob, can be comparatively quick close the valve to prevent to lead to the inside medium of inner tube too much to flow out when not in time because of the valve closure.

Description

Large valve with large drift diameter sand prevention structure for wellhead fracturing

Technical Field

The utility model relates to a valve technical field is used in the well head fracturing, specifically is a well head fracturing is with big valve of big latus rectum sand control structure.

Background

The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like, and a general fracturing wellhead of a fracturing wellhead valve is installed on a paraffin removal gate on an oil and gas production tree through a flange, for example, the patent with the application number of CN201620737764.3 comprises a ball screw, a valve rod, a valve cover, a valve body, a valve plate, a valve seat, a tail rod and a tail cover, wherein the valve cover is installed on the valve body, the valve rod is installed in the valve body through the valve plate and the valve seat, the tail rod is installed at the bottom end of the valve rod and is fixed by the tail cover, a reversed sealing angle is arranged at the contact part of the valve rod and the valve cover, the reversed sealing angle is arranged at the contact part of the tail rod and the valve body, although the use requirements of various conditions can be met, certain small defects still exist in the actual use process, for example, when the valve is closed in emergency after the valve is opened and closed, an operator needs to manually rotate the valve knob clockwise for multiple turns, the valve cannot be closed more quickly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a well head fracturing is with big latus rectum sand control structure big valve to if meet emergency when the valve is closed fast after opening and shutting the valve that proposes in solving above-mentioned background art, need operating personnel manual to carry out many rings of clockwise rotations to the valve knob, can't comparatively quick carry out the closed problem with the valve.

In order to achieve the above object, the utility model provides a following technical scheme: a large valve with a large-drift-diameter sand prevention structure for well mouth fracturing comprises a valve body and a valve rod, wherein the valve rod is arranged above the valve body, and the outer wall of the valve rod is provided with a quick return mechanism;

the quick return mechanism comprises a sleeve, an annular groove, a trapezoidal block, a lantern ring, a clockwork spring, a clamping groove, a pawl assembly, a sliding block, a sliding groove, a pressure spring, an annular plate, a pull rope, a pull ring, a fixed pulley and a support plate;

the sleeve is fixedly sleeved above the outer wall of the valve body, annular grooves are formed in the upper side and the lower side of the inner wall of the sleeve, trapezoidal blocks are connected to the left side and the right side of the inner portion of each annular groove in a sliding and clamping mode, a lantern ring is fixedly connected among the plurality of trapezoidal blocks, the inner wall of the lantern ring is fixedly connected with the outer wall of the valve rod, a spring is fixedly sleeved on the outer wall of the lantern ring, the outer wall of the spring is fixedly connected with the inner wall of the sleeve, a clamping groove is formed in the bottom end of the outer wall of the sleeve in an annular mode, a pawl assembly is clamped on the left side of the clamping groove in a one-way mode, a sliding block is fixedly connected to the left surface of the pawl assembly and is connected with the sleeve in a sliding mode through a sliding groove, a pressure spring is fixedly connected to the periphery of the lower surface of the pawl assembly, a ring plate is fixedly connected with the contact surface of the sleeve, a pull rope is fixedly connected to the center of the lower surface of the pawl assembly, and a part of the pull rope penetrates through the sleeve, the other end of the pull rope is fixedly connected with a pull ring, the outer wall of the pull rope is tightly abutted with a fixed pulley, a support plate is fixedly connected to the bottom end of the fixed pulley, and the support plate is fixedly connected with the contact surface of the sleeve. The valve can be closed quickly, so that the phenomenon that the medium in the internal pipeline flows out too much due to untimely closing of the valve is avoided.

Preferably, the sliding groove and the sliding block form a sliding limiting structure. The stable up-and-down movement of the pawl assembly can be facilitated.

Preferably, the trapezoidal blocks on two sides are symmetrical left and right relative to the center point of the lantern ring. The trapezoidal blocks on the two sides can uniformly apply force to the lantern ring.

Preferably, the center points of the pressure spring and the pawl assembly are located on the same horizontal vertical line. The pressure spring can uniformly apply force to the pawl component.

Preferably, a protection mechanism is arranged on the left side inside the valve body;

the protection mechanism comprises a circular ring, a filter plate and an inserted rod;

the ring rigid coupling is in the inside left side of valve body, the left surface laminating of ring has the filter plate, the equal rigid coupling in both sides has the inserted bar about the right surface of filter plate, the ring is run through to some of inserted bar, the outer wall of inserted bar and the contact surface interference fit of ring. The long-term stable operation of the valve is facilitated.

Preferably, the outer wall of the inserted bar is sequentially provided with a plurality of ribs in an annular shape from left to right. The rib can enhance the friction between the inserted bar and the ring.

Preferably, two of the insert rods are vertically symmetrical with respect to a center point of the filter plate. The two inserted rods can uniformly apply force to the filter plate.

Preferably, an auxiliary mechanism is arranged on the left side of the valve body;

the auxiliary mechanism comprises a vertical rod, an impeller and a cylinder, wherein the vertical rod is located on the left side of the valve body and is connected with the valve body through a sealing bearing in a rotating mode, the impeller is fixedly connected to the bottom end of the vertical rod, and the cylinder is fixedly connected to the top end of the vertical rod. Can provide convenience for valve maintenance personnel.

Compared with the prior art, the beneficial effects of the utility model are that: this big valve of big latus rectum sand control structure for well head fracturing has following advantage for the conventional art:

through the valve body, cooperation between valve rod and the quick return mechanism, operating personnel need carry out the valve body when quick closure, only need with the pull ring to the outside application of force pulling can, the pull ring is to the outside application of force in-process, transmission and the wire of fixed pulley through the stay cord, can make the pressure spring compress pawl subassembly lapse and draw-in groove phase separation, draw-in groove and lantern ring lose the one-way spacing effort of pawl subassembly this moment, then the clockwork spring is instantaneous kick-backs, make the lantern ring and valve rod carry out quick clockwise rotation, need not that operating personnel is manual to carry out many rings of clockwise rotations to valve rod outside knob, can be comparatively quick close the valve, in order to prevent to lead to the inside medium of inner tube to flow out too much when not in time because of the valve closure.

Through the cooperation between valve body, valve rod and the protection machanism, the medium that gets into the valve body inside at first can filter through the filter plate to prevent that the local jam condition from appearing in valve body internal part, do benefit to the permanent steady operation of valve.

Through the cooperation between valve body, valve rod, protection machanism and the complementary unit, the inside medium circulation in-process of valve body can produce the impact force to the impeller, makes montant and cylinder rotate simultaneously, and the normal circulation in-process of the inside medium that opens and shuts of valve body if the cylinder rotational speed appears and obviously slows down the back, then explains the left filter plate of valve body and needs in time to clear up or renew, can provide convenient for the valve maintainer.

Drawings

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

FIG. 2 is a schematic view of a connection of the valve stem and the quick return mechanism of FIG. 1;

FIG. 3 is a schematic view of the connection of the catch, pawl assembly and pull cord of FIG. 2;

fig. 4 is a schematic view of a connection structure of the valve body, the guard mechanism and the auxiliary mechanism of fig. 1.

In the figure: 1. the valve comprises a valve body, 2, a valve rod, 3, a quick return mechanism, 301, a sleeve, 302, a ring groove, 303, a trapezoidal block, 304, a lantern ring, 305, a clockwork spring, 306, a clamping groove, 307, a pawl component, 308, a sliding block, 309, a sliding groove, 310, a pressure spring, 311, a ring plate, 312, a pull rope, 313, a pull ring, 314, a fixed pulley, 315, a support plate, 4, a protection mechanism, 401, a ring, 402, a filter plate, 403, an inserted link, 5, an auxiliary mechanism, 501, a vertical rod, 502, an impeller, 503 and a cylinder.

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. 1-4, the present invention provides a technical solution: a large valve with a large drift diameter sand control structure for wellhead fracturing comprises a valve body 1 and a valve rod 2, wherein the valve rod 2 is arranged above the valve body 1, a quick return mechanism 3 is arranged on the outer wall of the valve rod 2, the quick return mechanism 3 comprises a sleeve 301, an annular groove 302, a trapezoidal block 303, a sleeve ring 304, a clockwork spring 305, a clamping groove 306, a pawl component 307, a sliding block 308, a sliding groove 309, a pressure spring 310, a ring plate 311, a pulling rope 312, a pulling ring 313, a fixed pulley 314 and a supporting plate 315, the sleeve 301 is fixedly sleeved above the outer wall of the valve body 1, the annular groove 302 is respectively arranged on the upper side and the lower side of the inner wall of the sleeve 301, the trapezoidal block 303 is respectively clamped and connected on the left side and the right side of the inner part of the annular groove 302 in a sliding manner, but can not be separated from the annular groove 302, the sleeve ring 304 is fixedly connected among a plurality of the trapezoidal blocks 303, the inner wall of the sleeve ring 304 is fixedly connected with the outer wall of the valve rod 2, the clockwork spring 305 is fixedly sleeved on the outer wall of the sleeve ring 304, the coefficient of the spring 305 is 5-30N/CM, the outer wall of the spring 305 is fixedly connected with the inner wall of the sleeve 301, the bottom end of the outer wall of the sleeve 301 is annularly provided with a clamping groove 306, the left side of the clamping groove 306 is in one-way clamping connection with a pawl component 307, the left surface of the pawl component 307 is fixedly connected with a sliding block 308, the sliding block 308 is connected with the sleeve 301 in a sliding way through a sliding groove 309, the periphery of the lower surface of the pawl component 307 is fixedly connected with a pressure spring 310, the coefficient of the pressure spring 310 is 5-10N/CM, the other end of the pressure spring 310 is fixedly connected with a ring plate 311, the ring plate 311 is fixedly connected with the contact surface of the sleeve 301, the center of the lower surface of the pawl component 307 is fixedly connected with a pull rope 312, a part of the pull rope 312 penetrates through the sleeve 301, the other end of the pull rope 312 is fixedly connected with a pull ring 313, the outer wall of the pull rope 312 tightly abuts against a fixed pulley 314, the bottom end of the fixed pulley 314 is fixedly connected with a support plate 315, and the support plate 315 is fixedly connected with the contact surface of the sleeve 301, the sliding limiting structure is formed by the sliding groove 309 and the sliding block 308, the sliding groove 309 can play a role in limiting sliding of the sliding block 308, the sliding block 308 can slide up and down in the sliding groove 309, the sliding block cannot move front and back, left and right, and can be beneficial to stable up and down movement of the pawl component 307, the trapezoidal blocks 303 on two sides are symmetrical left and right relative to the central point of the lantern ring 304, the trapezoidal blocks 303 on two sides can apply force to the lantern ring 304 uniformly, the central points of the pressure spring 310 and the pawl component 307 are located on the same horizontal vertical line, and the pressure spring 310 can apply force to the pawl component 307 uniformly.

The protection mechanism 4 is arranged on the left side of the interior of the valve body 1, the protection mechanism 4 comprises a circular ring 401, a filter plate 402 and insertion rods 403, the circular ring 401 is fixedly connected to the left side of the interior of the valve body 1, the filter plate 402 is attached to the left surface of the circular ring 401, the filter plate 402 is made of stainless steel materials with through holes distributed on the surface, the mesh number is 30-80 meshes, the insertion rods 403 are fixedly connected to the upper side and the lower side of the right surface of the filter plate 402, a part of the insertion rods 403 penetrates through the circular ring 401, the outer wall of the insertion rods 403 is in interference fit with the contact surface of the circular ring 401, a plurality of convex edges are sequentially formed in an annular shape from left to right on the outer wall of the insertion rods 403, the convex edges can enhance the friction force between the insertion rods 403 and the circular ring 401, the two insertion rods 403 are vertically symmetrical relative to the center point of the filter plate 402, and can enable the two insertion rods 403 to uniformly apply force to the filter plate 402.

The left side of valve body 1 is equipped with complementary unit 5, and complementary unit 5 includes montant 501, impeller 502 and cylinder 503, and montant 501 is vertical to be located the left side of valve body 1, and montant 501 rotates with valve body 1 through sealed bearing and links to each other, and montant 501's bottom rigid coupling has impeller 502, and montant 501's top rigid coupling has cylinder 503.

When the large valve with the large-drift-diameter sand control structure for wellhead fracturing is used, firstly, the filter plate 402 is positioned on the left side surface of the circular ring 401, the inserted rod 403 penetrates through the circular plate 401 to enable the inserted rod to be abutted against each other, then the valve body 1 is installed on a medium circulation pipeline, the valve body 1 can be in an opening and closing state by rotating the valve rod 2 anticlockwise, in the process, due to the one-way clamping relation between the pawl component 307 and the clamping groove 306, the reverse rotation of the compression acting force of the receiving and transmitting strip 305 of the sleeve 304 and the valve rod 2 can occur, so that the valve body 1 can be in the opening and closing state for a long time and smoothly, if the valve body 1 needs to be quickly closed under special conditions, an operator can apply force to the pull ring 313 outwards to pull, in the process that the pull ring 313 applies force to the outwards, the compression pawl component 307 is enabled to move downwards to be separated from the clamping groove 306 through the transmission of the pull rope 312 and the guide of the fixed pulley 314, draw-in groove 306 and lantern ring 304 lose the one-way spacing effort of pawl subassembly 307 this moment, then clockwork spring 305 is instantaneous kick-backs, makes lantern ring 304 and valve rod 2 carry out quick clockwise rotation, need not that operating personnel is manual to carry out many rings of clockwise rotations to valve rod outside knob, can be comparatively quick close the valve to prevent to lead to the inside pipe medium too much to flow out when untimely because of the valve is closed, practicality does benefit to using widely more.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. The utility model provides a well head fracturing is with big valve of big latus rectum sand control structure, includes valve body (1) and valve rod (2), the top of valve body (1) is equipped with valve rod (2), its characterized in that: the outer wall of the valve rod (2) is provided with a quick return mechanism (3);

the quick return mechanism (3) comprises a sleeve (301), a ring groove (302), a trapezoidal block (303), a sleeve ring (304), a spring (305), a clamping groove (306), a pawl assembly (307), a sliding block (308), a sliding groove (309), a pressure spring (310), a ring plate (311), a pull rope (312), a pull ring (313), a fixed pulley (314) and a support plate (315);

the valve body is characterized in that the sleeve (301) is fixedly sleeved above the outer wall of the valve body (1), annular grooves (302) are formed in the upper side and the lower side of the inner wall of the sleeve (301), trapezoidal blocks (303) are slidably clamped in the left side and the right side of the inner portion of each annular groove (302), a plurality of trapezoidal blocks (303) are fixedly connected with one another through a sleeve ring (304), the inner wall of each sleeve ring (304) is fixedly connected with the outer wall of the valve rod (2), a clockwork spring (305) is fixedly sleeved on the outer wall of each sleeve ring (304), the outer wall of each clockwork spring (305) is fixedly connected with the inner wall of the sleeve (301), a clamping groove (306) is formed in the bottom end of the outer wall of the sleeve (301) in an annular shape, a pawl component (307) is clamped in the left side of each clamping groove (306) in a one-way manner, a sliding block (308) is fixedly connected with the left surface of the pawl component (307), and the sliding block (308) is connected with the sleeve (301) through a sliding groove (309), the lower surface of pawl subassembly (307) rigid coupling all around has pressure spring (310), the other end rigid coupling of pressure spring (310) has crown plate (311), crown plate (311) links to each other with the contact surface of sleeve (301) is fixed, the lower surface center rigid coupling of pawl subassembly (307) has stay cord (312), sleeve (301) is run through to a part of stay cord (312), the other end rigid coupling of stay cord (312) has pull ring (313), the outer wall of stay cord (312) is supported and is tightly had fixed pulley (314), the bottom rigid coupling of fixed pulley (314) has extension board (315), extension board (315) link to each other with the contact surface of sleeve (301) is fixed.

2. The large valve with the large drift diameter sand control structure for wellhead fracturing as claimed in claim 1, wherein: the sliding groove (309) and the sliding block (308) form a sliding limiting structure.

3. The large valve with the large drift diameter sand control structure for wellhead fracturing as claimed in claim 1, wherein: the trapezoidal blocks (303) on two sides are symmetrical left and right relative to the center point of the lantern ring (304).

4. The large valve with the large drift diameter sand control structure for wellhead fracturing as claimed in claim 1, wherein: the center points of the pressure spring (310) and the pawl component (307) are positioned on the same horizontal vertical line.

5. The large valve with the large drift diameter sand control structure for wellhead fracturing as claimed in claim 1, wherein: a protection mechanism (4) is arranged on the left side inside the valve body (1);

the protection mechanism (4) comprises a circular ring (401), a filter plate (402) and an insert rod (403);

ring (401) rigid coupling is in the inside left side of valve body (1), the left surface laminating of ring (401) has filter plate (402), the equal rigid coupling in both sides has inserted bar (403) about the right surface of filter plate (402), ring (401) is run through to a part of inserted bar (403), the outer wall of inserted bar (403) and the contact surface interference fit of ring (401).

6. The large valve with the large drift diameter sand control structure for wellhead fracturing as claimed in claim 5, wherein: the outer wall of the inserted bar (403) is sequentially provided with a plurality of ribs in an annular shape from left to right.

7. The large valve with the large drift diameter sand control structure for wellhead fracturing as claimed in claim 5, wherein: the two insert rods (403) are symmetrical up and down relative to the center point of the filter plate (402).

8. The large valve with the large drift diameter sand control structure for wellhead fracturing as claimed in claim 1, wherein: an auxiliary mechanism (5) is arranged on the left side of the valve body (1);

the auxiliary mechanism (5) comprises a vertical rod (501), an impeller (502) and a cylinder (503), wherein the vertical rod (501) is located on the left side of the valve body (1), the vertical rod (501) is connected with the valve body (1) through a sealing bearing in a rotating mode, the impeller (502) is fixedly connected to the bottom end of the vertical rod (501), and the cylinder (503) is fixedly connected to the top end of the vertical rod (501).

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