CN219452061U

CN219452061U - Pressure signal circulation switch valve

Info

Publication number: CN219452061U
Application number: CN202320726476.8U
Authority: CN
Inventors: 谢威; 曹存才; 鄢红江; 洪德强; 杨礼
Original assignee: Guiyang Zhengshan Petroleum Technology Co ltd
Current assignee: Guiyang Zhengshan Petroleum Technology Co ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2023-08-01
Anticipated expiration: 2033-03-31

Abstract

The utility model discloses a pressure signal circulation switch valve, and belongs to the technical field of switch valves. The switch valve comprises a valve body and a valve rod, wherein an elastic reset component is arranged on the inner side of one end of the valve body, a sealing combination is arranged on the inner side of the other end of the valve body, the valve rod is positioned in the valve body and is in sliding connection with the valve body, one end of the valve rod is rotationally connected with one end of the elastic reset component, the other end of the valve rod penetrates through the sealing combination, a limiting toggle component is arranged in the valve body at a position corresponding to the middle part of the valve rod, and a flow passage hole is formed between the limiting toggle component and the sealing combination. The switch valve can be opened and closed circularly, so that the practicability is high; based on the structure setting of ooff valve, the staff is at ground operation pump to ooff valve pressurization, and the operation relief valve is to ooff valve pressure release, can realize ooff valve circulation and open and close, operation convenient to use, the reliability is high.

Description

Pressure signal circulation switch valve

Technical Field

The utility model relates to a pressure signal circulation switch valve, and belongs to the technical field of switch valves.

Background

With the increase of petroleum and natural gas exploration and development force, the requirement on underground control is improved, the opening and closing of a runner between underground tool cavities are needed to be realized through ground pressure operation in many occasions, part of valves are designed into a rupture disc structure, the rupture disc breaks under the action of pressure after the wellhead is pressurized, an opening channel is established, but the rupture disc is irreversible after being destroyed, so that the channel cannot be closed, and the opening and closing cannot be realized repeatedly.

The chinese patent publication No. CN201190552Y discloses a mechanically controlled multiple-time switching valve, when in use, the switching valve in an initial closed state is put into the well, and as the inner diameter of the upper part of the sliding sleeve is smaller than that of the upper joint, after a steel ball or a plastic ball is put into the well and the ball is blocked by the sliding sleeve, the channel is blocked, and then the sliding sleeve can be pushed to move forward by pressing from the oil pipe. The outer surface of the lower section of the sliding sleeve is provided with a track groove, the upper end of the track pin is inserted into the track groove, and the lower end of the track pin is fixed in the shell. When the sliding sleeve slides forwards, the sliding sleeve moves relative to the track pin, and when the upper end of the upper track groove contacts the track pin, the sliding sleeve rotates at a certain angle relative to the shell due to the fact that the upper track groove is a ratchet-shaped groove. In the process, the track pin relatively moves to the top end of the upper track groove from the lower end of the original long groove in the track groove of the sliding sleeve, and the sliding sleeve stops moving. This process is also a process in which the on-off valve spring is continuously compressed. Then lifting the oil pipe to enable the steel ball to retreat, and moving the sliding sleeve backwards under the action of the spring force of the switching valve spring. The switching valve can be opened and closed for a plurality of times, so that the pipe column formed by the valve can meet the requirements of multi-layer section layering treatment or water-separating operation.

However, after the switch valve is in the well, a steel ball needs to be put into an upper joint so as to pressurize the switch valve, then an oil lifting pipe is needed to enable the steel ball to retreat for pressure relief, whether the steel ball is put in place or retreated in place is difficult to control, and the defects of inconvenience in operation and low reliability exist.

Disclosure of Invention

In order to solve the technical problems, the utility model provides a pressure signal circulation switch valve.

The utility model is realized by the following technical scheme:

the utility model provides a pressure signal circulation ooff valve, includes valve body and valve rod, the inboard of valve body one end is equipped with elasticity subassembly that resets, and the inboard of the other end is equipped with sealed combination, the valve rod is located the valve body to with valve body sliding connection, the one end of valve rod rotates with the one end of elasticity subassembly that resets to be connected, and the other end passes sealed combination, the valve body is interior to be equipped with spacing subassembly of stirring with the corresponding position in valve rod middle part, and has seted up the runner hole on the valve body between spacing subassembly and sealed combination of stirring.

The valve body comprises a connector, a guide connector and a spring barrel, wherein one end of the spring barrel is connected with one end of the connector through the guide connector.

One end of the connector is provided with an external thread A, the other end of the connector is provided with an internal thread A, grooves are formed in the connector along the circumferential direction, a plurality of runner holes are uniformly distributed between the internal thread A and the grooves on the connector, and a hexagonal wrench head is arranged on the outer circular surface of the connector.

The guide joint comprises a joint body, external threads B are arranged at two ends of the joint body, and a hexagonal wrench head is arranged on the outer circular surface of the joint body.

The two ends of the spring cylinder are provided with internal threads B, and the outer circular surface of the spring cylinder is provided with a hexagonal wrench head.

The limiting toggle assembly comprises an upper guide sleeve and a lower guide sleeve, the upper guide sleeve and the lower guide sleeve are fixedly arranged in a guide joint at intervals, a plurality of guide teeth A are uniformly distributed at one end, close to the lower guide sleeve, of the upper guide sleeve, a plurality of guide teeth B are uniformly distributed at one end, close to the upper guide sleeve, of the lower guide sleeve, the guide teeth B are equal to the guide teeth A in number and are arranged in a staggered mode, and two key grooves are uniformly distributed in the lower guide sleeve.

One end of the valve rod is rotationally connected with one end of the elastic resetting component through an end face bearing.

Two guide keys are uniformly distributed in the middle of the valve rod, and a step A is arranged at one end of the valve rod.

The elastic resetting component comprises an adjusting screw plug, a spring and a bearing seat, wherein the adjusting screw plug is in threaded connection with the valve body, and one end of the bearing seat is connected with one end of the adjusting screw plug through the spring.

And one end, far away from the spring, of the bearing seat is provided with a step B.

The utility model has the beneficial effects that: the switch valve can be opened and closed circularly, so that the practicability is high; based on the structure setting of ooff valve, the staff is at ground operation pump to ooff valve pressurization, and the operation relief valve is to ooff valve pressure release, can realize ooff valve circulation and open and close, operation convenient to use, the reliability is high.

Drawings

FIG. 1 is a schematic cross-sectional view of the present utility model;

FIG. 2 is a schematic diagram of an assembly structure of a connector and seal assembly of the present utility model;

FIG. 3 is a cross-sectional view of FIG. 2;

FIG. 4 is a schematic diagram of an assembly structure of a guide joint and a limit toggle assembly of the present utility model;

FIG. 5 is a cross-sectional view of FIG. 4;

FIG. 6 is a schematic view of the structure of the upper guide sleeve of the present utility model;

FIG. 7 is a schematic view of the structure of the lower guide sleeve of the present utility model;

FIG. 8 is a schematic view of the structure of the valve stem of the present utility model;

FIG. 9 is a schematic view of the spring cartridge of the present utility model;

FIG. 10 is a cross-sectional view of FIG. 9;

FIG. 11 is a schematic diagram of the structure of the adjusting plug of the present utility model.

In the figure: 1-connector, 11-external screw thread A, 12-sealing combination, 13-runner hole, 2-guide connector, 21-external screw thread B, 22-upper guide sleeve, 221-guide tooth A, 23-connector body, 24-lower guide sleeve, 241-guide tooth B, 242-key slot, 3-valve rod, 31-guide key, 32-step A, 4-end face bearing, 5-bearing seat, 6-spring, 7-spring cylinder and 8-adjusting screw plug.

Detailed Description

The technical solution of the present utility model is further described below, but the scope of the claimed utility model is not limited to the above.

As shown in fig. 1 to 11, the pressure signal circulation switch valve of the utility model comprises a valve body and a valve rod 3, wherein an elastic reset component is arranged on the inner side of one end of the valve body, a sealing combination 12 is arranged on the inner side of the other end of the valve body, the valve rod 3 is positioned in the valve body and is in sliding connection with the valve body, one end of the valve rod 3 is rotationally connected with one end of the elastic reset component, the other end of the valve rod passes through the sealing combination 12, a limit toggle component is arranged in the valve body at a position corresponding to the middle part of the valve rod 3, and a flow passage hole 13 is formed between the limit toggle component and the sealing combination 12.

The valve body comprises a connector 1, a guide connector 2 and a spring barrel 7, wherein one end of the spring barrel 7 is connected with one end of the connector 1 through the guide connector 2.

The one end processing of connector 1 has external screw thread A11, and the other end processing has internal screw thread A, and the connector 1 is interior to be seted up along circumference flutedly, and the equipartition is equipped with four runner holes 13 between internal screw thread A and the recess on the connector 1, has processed spanner hexagonal head on the outer disc of connector 1. When the tool is used, the external thread A11 on the connector 1 is used for being connected with other tools, the internal thread A is used for being connected with the guide connector 2, the groove is used for installing the sealing combination 12, the sealing combination 12 is a high-temperature-resistant sealing ring and the like, and the hexagonal head of the wrench can be clamped by an open spanner, so that the connector 1 is conveniently connected with the guide connector 2 and the like in a threaded manner.

The guide joint 2 comprises a joint body 23, external threads B21 are machined at two ends of the joint body 23, and a hexagonal wrench head is machined on the outer circular surface of the joint body 23. When in use, the external thread B21 at one end of the connector body 23 is used for being connected with the connector 1, the external thread B21 at the other end is used for being connected with the spring cylinder 7, and the hexagonal head of the wrench can be clamped by an open-end wrench, so that the guide connector 2 is conveniently in threaded connection with the connector 1 and the spring cylinder 7.

The two ends of the spring cylinder 7 are both provided with internal threads B, and the outer circular surface of the spring cylinder 7 is provided with a hexagonal wrench head. When in use, the internal thread B at one end of the spring cylinder 7 is used for being connected with the guide joint 2, and the internal thread B at the other end is used for being connected with the adjusting screw plug 8.

The limiting toggle assembly comprises an upper guide sleeve 22 and a lower guide sleeve 24, the upper guide sleeve 22 and the lower guide sleeve 24 are fixedly welded in a guide joint 2 at intervals, six guide teeth A221 are uniformly distributed and processed at one end, close to the lower guide sleeve 24, of the upper guide sleeve 22, six guide teeth B241 are uniformly distributed and processed at one end, close to the upper guide sleeve 22, of the lower guide sleeve 24, the number of the guide teeth B241 is equal to that of the guide teeth A221, the guide teeth B241 are arranged in a staggered mode, and two key grooves 242 are uniformly distributed and processed in the lower guide sleeve 24. In use, the six guide teeth A221 and the six guide teeth B241 are staggered to form guide grooves on the circumference.

One end of the valve rod 3 is rotationally connected with one end of the elastic resetting component through an end face bearing 4. Ensuring that the valve stem 3 is free to rotate relative to the resilient return member.

Two guide keys 31 are uniformly distributed and processed in the middle of the valve rod 3, and a step A32 is processed at one end of the valve rod 3. In use, the outer circumference of the valve stem 3 forms a seal with the seal assembly 12. One end of the valve rod 3 is provided with a step A32, so that the end face bearing 4 is convenient to install.

The elastic resetting component comprises an adjusting screw plug 8, a spring 6 and a bearing seat 5, wherein the adjusting screw plug 8 is in threaded connection with the valve body, and one end of the bearing seat 5 is connected with one end of the adjusting screw plug 8 through the spring 6. When the spring 6 is used, the spring 6 is a spring with high rigidity, and the depth of the adjusting plug 8 entering the spring barrel 7 is adjusted, so that the purpose of adjusting the pretightening force of the spring 6 can be achieved.

The end, far away from the spring 6, of the bearing seat 5 is provided with a step B. The end face bearing 4 is convenient to install.

The working principle or the using process of the pressure signal circulation switch valve is as follows:

one end of the valve body, which is far away from the elastic resetting component, is provided with a sealing cover, the sealing cover is connected with a pipeline A and a pipeline B, the pipeline A is connected with a pump, the pipeline B is provided with a pressure relief valve, after the switch valve goes into the well, hydraulic medium can be pumped into the valve body through the pump to be pressurized, and the pressure can be relieved through the pressure relief valve.

After the pretightening force of the spring 6 is adjusted by adjusting the plug 8, the opening pressure value of the switch valve is set.

The first pressure signal is pumped to the connector 1 through an external pump, after the pressure signal value reaches the set pressure value, the valve rod 3 is pushed to move towards the direction close to the adjusting plug 8, the guide key 31 on the valve rod 3 is propped against the tooth part inclined surface of the guide tooth B241, the guide key 31 rotates 1/6 circle under the action of the tooth part inclined surface, the valve rod 31 falls to the first groove bottom of the lower guide sleeve 24, the valve rod does not continue to move towards the direction close to the adjusting plug 8, and the first pressure signal is received. The first pressure signal is unloaded, the valve rod 3 returns under the action of the spring 6, at the moment, the guide key 31 on the valve rod 3 continuously rotates for 1/6 circle in the same direction under the action of the tooth part inclined plane of the guide tooth A221, the valve rod 3 falls to the bottom of the upper guide sleeve 22 and does not continuously move towards the direction close to the connector 1, and the valve rod returns thoroughly.

The second pressure signal is loaded to the connector 1 through the external pump, the valve rod 3 is pushed again after the second pressure signal reaches a set pressure value, the valve rod 3 moves towards the direction close to the adjusting plug 8 again, and the valve rod rotates in the same direction for 1/6 circle, and the second pressure signal is received. The second pressure signal is unloaded, and the valve rod 3 returns under the action of the spring 6 and is fixed after being rotated in the same direction for 1/6 turn again.

The third pressure signal is loaded to the connector 1 through the external pump, the valve rod 3 is pushed after the third pressure signal reaches a set pressure value, the valve rod 3 moves towards the direction close to the adjusting plug 8 and rotates in the same direction for 1/6 circle, the guide key 31 on the valve rod 3 enters the key slot 242 inside the lower guide sleeve 24, the valve rod 3 is not blocked to continue moving towards the direction close to the adjusting plug 8, the valve rod 3 is separated from the sealing combination 12, the valve rod 31 is in sealing failure, pressure fluid overflows and is discharged from the runner hole 13 on the connector body 1, and the internal runner and the external runner are communicated, so that the switching valve is considered to be successfully opened.

When the switching valve is required to be closed, the third pressure signal value is unloaded, the valve rod 3 returns under the action of the spring 6 and continues to rotate in the same direction for 1/6 circle, and then the switching valve is successfully closed.

If the switching valve is to be opened again, after the two pressure signals are continuously pressurized according to the steps, the switching valve can be opened again, and the like. The switch valve is opened for the third time after the pressure signal is given for the second time, and the switch valve is closed after the pressure signal is given for the third time. The cyclic operation thus achieves the function of cyclically opening and closing the on-off valve.

The pressure signal circulation switch valve provided by the utility model can be opened and closed in a circulating way, and has strong practicability; based on the structure setting of ooff valve, the staff is at ground operation pump to ooff valve pressurization, and the operation relief valve is to ooff valve pressure release, can realize ooff valve circulation and open and close, operation convenient to use, the reliability is high.

Claims

1. A pressure signal circulation ooff valve, its characterized in that: including valve body and valve rod (3), the inboard of valve body one end is equipped with elasticity and resets the subassembly, and the inboard of the other end is equipped with sealed combination (12), valve rod (3) are located the valve body to with valve body sliding connection, the one end of valve rod (3) rotates with the one end of elasticity and resets the subassembly to be connected, and the other end passes sealed combination (12), the valve body is interior to be equipped with spacing subassembly of stirring with the corresponding position in valve rod (3) middle part, and has seted up runner hole (13) between spacing subassembly and sealed combination (12) on the valve body.

2. The pressure signal cycle switching valve of claim 1, wherein: the valve body comprises a connector (1), a guide connector (2) and a spring barrel (7), wherein one end of the spring barrel (7) is connected with one end of the connector (1) through the guide connector (2).

3. The pressure signal circulation switching valve according to claim 2, wherein: one end of the connector (1) is provided with an external thread A (11), and the other end is provided with an internal thread A; grooves are formed in the connector (1) along the circumferential direction, and a plurality of runner holes (13) are uniformly distributed between the internal threads A and the grooves on the connector (1); the outer circular surface of the connector (1) is provided with a hexagonal wrench head.

4. The pressure signal circulation switching valve according to claim 2, wherein: the guide joint (2) comprises a joint body (23), external threads B (21) are arranged at two ends of the joint body (23), and a hexagonal wrench head is arranged on the outer circular surface of the joint body (23).

5. The pressure signal circulation switching valve according to claim 2, wherein: both ends of the spring cylinder (7) are provided with internal threads B, and the outer circular surface of the spring cylinder (7) is provided with a hexagonal wrench head.

6. The pressure signal circulation switching valve according to claim 2 or 4, wherein: the limiting toggle assembly comprises an upper guide sleeve (22) and a lower guide sleeve (24), wherein the upper guide sleeve (22) and the lower guide sleeve (24) are fixedly arranged in a guide joint (2) at intervals, a plurality of guide teeth A (221) are uniformly distributed at one end, close to the lower guide sleeve (24), of the upper guide sleeve (22), a plurality of guide teeth B (241) are uniformly distributed at one end, close to the upper guide sleeve (22), of the lower guide sleeve (24), the guide teeth B (241) are equal to the guide teeth A (221) in number, and are arranged in a staggered mode, and two key grooves (242) are uniformly distributed in the lower guide sleeve (24).

7. The pressure signal cycle switching valve of claim 1, wherein: one end of the valve rod (3) is rotationally connected with one end of the elastic resetting component through an end face bearing (4).

8. The pressure signal cycle switching valve of claim 1, wherein: two guide keys (31) are uniformly distributed in the middle of the valve rod (3), and a step A (32) is arranged at one end of the valve rod (3).

9. The pressure signal cycle switching valve of claim 1, wherein: the elastic resetting component comprises an adjusting screw plug (8), a spring (6) and a bearing seat (5), wherein the adjusting screw plug (8) is in threaded connection with the valve body, and one end of the bearing seat (5) is connected with one end of the adjusting screw plug (8) through the spring (6).

10. The pressure signal cycle switching valve of claim 9, wherein: one end of the bearing seat (5) far away from the spring (6) is provided with a step B.