CN214093190U

CN214093190U - Pilot operated safety valve capable of being opened and closed quickly

Info

Publication number: CN214093190U
Application number: CN202023333521.9U
Authority: CN
Inventors: 曾保华
Original assignee: CHINA OIL BLUE OCEAN PETROLEUM TECHNOLOGY Inc
Current assignee: CHINA OIL BLUE OCEAN PETROLEUM TECHNOLOGY Inc
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-08-31
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a pilot operated relief valve that opens and close fast, the inside of setting for the valve body is provided with sets for the spring, and the lower extreme of setting for the spring is connected with the drive block and releases the ware, and the lower extreme surface of main valve body is provided with the medium inlet tube, and the bottom surface exit of medium inlet tube is provided with seal ring, and seal ring is provided with the filtration silk screen, and the side of main valve body is provided with the medium outlet pipe, is provided with lug, through-hole and recess on the medium outlet pipe. This pilot operated safety valve of opening and close fast, the setting up of bleeder makes operation more quick convenient, the lifting surface area of sealed face has been increased, be favorable to opening and close fast, seal ring's setting makes in the leakproofness can the separation foreign matter admission valve when stronger, avoid inside jam, be favorable to people's use, through the setting of lug and each recess and through-hole, can carry out effectual injecing to the position of medium outlet pipe and pipeline, make the installation of pilot operated safety valve and connect more quick convenient.

Description

Pilot operated safety valve capable of being opened and closed quickly

Technical Field

The utility model relates to a pilot operated safety valve technical field specifically is a pilot operated safety valve of opening and close fast.

Background

The pilot operated safety valve is a non-direct load type safety valve. Consisting of a main valve, which is driven by means of a medium discharged from a pilot valve, and a pilot valve (also called "secondary valve"), also called "pulse safety valve" because the pressure in the system is in the form of pulses. The pilot valve itself is also a direct load relief valve, as viewed alone. When the medium turn force reaches the opening pressure of the pilot valve, the pilot valve is opened in advance, and the discharged medium enters the main valve from the bypass pipe. The safety valve is mainly used for boiler, pressure container and pipeline, and its control pressure is not greater than specified value, so that it can play important role in protecting personal safety and equipment operation. The valve clack opening height of the safety valve can be divided into a micro-opening safety valve and a full-opening safety valve. The safety valve under the prior art is slow in opening and closing speed to can't prevent in foreign matter impurity gets into the valve, lead to the jam easily, it is very troublesome to install simultaneously, thereby can't satisfy people's user demand. In view of these defects, it is necessary to design a pilot operated safety valve that can be opened and closed quickly.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pilot operated relief valve of opening and close fast has the advantage of opening and close fast, from taking filter screen and convenient installation, can solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a pilot operated safety valve capable of being opened and closed quickly comprises a setting valve body, a pilot valve body and a main valve body, wherein the top of the setting valve body is connected with an anti-misoperation screw, the lower part of the setting valve body is connected with the pilot valve body, a setting spring is arranged inside the setting valve body, the lower end of the setting spring is externally connected with a driving block, the lower end of the setting valve body is externally connected with a first pressure leading pipeline, a release device is arranged on the outer surface of one side of the pilot valve body, and the other side of the pilot valve body is connected with a second pressure leading pipeline;

the lower end surface of the main valve body is provided with a medium inlet pipe, a seat returning spring is arranged inside the main valve body, the top of the seat returning spring is provided with a first valve plate, the bottom of the seat returning spring is provided with a second valve plate, and the second valve plate is arranged on the top surface of the medium inlet pipe;

the side of main valve body is provided with the medium outlet pipe, is provided with the blind groove on the medium outlet pipe, and the inside in blind groove is provided with revolves the piece, revolves and is provided with the blind hole in the piece, and the blind hole is inside to be provided with the lug, and one side that the main valve body was kept away from to the lug is provided with the pipeline, is provided with first through-hole on the pipeline, and the left end of first through-hole is provided with first recess, and the both sides of first through-hole are provided with the second through-hole, and the inside of second through-hole is provided with the knob, and one side of knob is provided with the second recess.

Preferably, a first interface and a second interface are arranged on two sides of the pilot valve body, a third interface is arranged on the top of the main valve body, a fourth interface is arranged on the side surface of the medium inlet pipe below the main valve body, two ends of the first pressure-leading pipeline are respectively connected to the first interface and the fourth interface, and two ends of the second pressure-leading pipeline are respectively connected to the second interface and the third interface.

Preferably, a sealing gasket is arranged at the outlet of the bottom surface of the medium inlet pipe, the sealing gasket is detachably connected with the medium inlet pipe, and a filtering wire mesh is arranged on the sealing gasket.

Preferably, the side wall of the bump is provided with a convex tooth, the blind hole is of a tooth socket structure, the size of the convex tooth is matched with the tooth socket of the blind hole, and the bump and the rotary piece form a rotating structure in the blind groove through the convex tooth.

Preferably, the number of the first through holes is not less than two, and the first through holes are evenly distributed on the pipeline.

Preferably, the number of the second through holes is not less than two, and the second through holes are uniformly distributed on the pipeline.

Preferably, the pilot valve body and the main valve body are fixedly connected by using a limiting steel plate.

Compared with the prior art, the beneficial effects of the utility model are as follows:

the pilot operated safety valve capable of being opened and closed quickly comprises a set valve body, a pilot valve body and a main valve body, wherein a set spring is arranged in the set valve body, a driving block is connected to the outer part of the lower end of the set spring, a bleeder is arranged on the outer surface of one side of the pilot valve body, the operation of the pilot operated safety valve is faster and more convenient due to the arrangement of the bleeder, the stress area of a sealing surface is increased, the quick opening and closing of the safety valve are facilitated, a medium inlet pipe is arranged on the surface of the lower end of the main valve body, a sealing gasket is arranged at an outlet on the bottom surface of the medium inlet pipe and is detachably connected with the medium inlet pipe, a filtering wire mesh is arranged on the sealing gasket, the sealing performance of a connector is stronger due to the arrangement of the sealing gasket, foreign matters in a medium can be prevented from entering the valve body due to the arrangement of the filtering wire mesh, the internal blockage of the valve body is avoided, and the use of people is facilitated, the side of main valve body is provided with the medium outlet pipe, is provided with blind groove, revolves piece, blind hole, lug, first through-hole, first recess, second through-hole, knob and second recess on the medium outlet pipe, through the setting of lug and each recess and through-hole, can carry out effectual injecing to the position of medium outlet pipe and pipeline for the installation of guide's formula relief valve is convenient fast more with connecting.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side cross-sectional view of the setting valve body and the pilot valve body of the present invention;

FIG. 3 is a schematic side cross-sectional view of a main valve body of the present invention;

FIG. 4 is a schematic side view of the main valve body conduit of the present invention;

FIG. 5 is a schematic view of the bump connection structure of the present invention;

fig. 6 is an enlarged view of a portion a in fig. 3.

In the figure: 1. setting a valve body; 2. a pilot valve body; 3. a main valve body; 4. a misoperation prevention screw; 5. setting a spring; 6. a drive block; 7. a bleeder; 8. a first interface; 9. a second interface; 10. a first pressure leading pipeline; 11. a second pressure-leading pipeline; 12. a first valve plate; 13. a return spring; 14. a second valve plate; 15. a media inlet pipe; 16. a sealing gasket; 17. a third interface; 18. a fourth interface; 19. a pipeline; 20. a medium outlet pipe; 21. a first groove; 22. a knob; 23. a first through hole; 24. a bump; 25. rotating the workpiece; 26. a blind groove; 27. a second through hole; 28. blind holes; 29. a convex tooth; 30. a second groove.

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. 1-6, a pilot operated safety valve capable of being opened and closed quickly comprises a setting valve body 1, a pilot valve body 2 and a main valve body 3, wherein the top of the setting valve body 1 is connected with an anti-misoperation screw 4, the lower part of the setting valve body 1 is connected with the pilot valve body 2, the pilot valve body 2 and the main valve body 3 are fixedly connected by a limiting steel plate, the setting valve body 1 is internally provided with a setting spring 5, the lower end of the setting spring 5 is externally connected with a driving block 6, the lower end of the setting valve body 1 is externally connected with a first lead wire 10, the outer surface of one side of the pilot valve body 2 is provided with a bleeder 7, the operation of the pilot operated safety valve is faster and more convenient due to the arrangement of the bleeder 7, the stress area of a sealing surface is increased, the safety valve is favorable for being opened and closed quickly, the other side of the pilot valve body 2 is connected with a second lead wire 11, the two sides of the pilot valve body 2 are provided with a first interface 8 and a second interface 9, the top of the main valve body 3 is provided with a third interface 17, the side surface of a medium inlet pipe 15 below the main valve body 3 is provided with a fourth interface 18, two ends of a first pressure leading pipeline 10 are respectively connected to the first interface 8 and the fourth interface 18, and two ends of a second pressure leading pipeline 11 are respectively connected to the second interface 9 and the third interface 17. The lower extreme surface of main valve body 3 is provided with medium inlet tube 15, the bottom surface exit of medium inlet tube 15 is provided with seal ring 16, be connected for dismantling between seal ring 16 and the medium inlet tube 15, be provided with the filtration silk screen on the seal ring 16, seal ring 16's setting makes the leakproofness of kneck stronger, the setting of filtering the silk screen can the inside of the foreign matter entering valve body in the separation medium, avoid blockking up the inside of valve body, be favorable to people's use, the inside of main valve body 3 is provided with back a spring 13, the top of returning a spring 13 is provided with valve plate 12 No. one, the bottom of returning a spring 13 is provided with valve plate 14 No. two, valve plate 14 No. two sets up on the top surface of medium inlet tube 15. The side of the main valve body 3 is provided with a medium outlet pipe 20, the medium outlet pipe 20 is provided with a blind groove 26, the blind groove 26 is internally provided with a rotating piece 25, the rotating piece 25 is internally provided with a blind hole 28, the blind hole 28 is internally provided with a convex block 24, the side wall of the convex block 24 is provided with a convex tooth 29, the blind hole 28 is of a tooth socket structure, the size of the convex tooth 29 is matched with the tooth socket of the blind hole 28, the convex block 24 and the rotating piece 25 form a rotating structure in the blind groove 26 through the convex tooth 29, one side of the convex block 24, which is far away from the main valve body 3, is provided with a pipeline 19, the pipeline 19 is provided with a first through hole 23, the first through hole 23 is provided with at least two through holes which are uniformly distributed on the pipeline 19, the left end of the first through hole 23 is provided with a first groove 21, the two sides of the first through hole 23 are provided with second through holes 27, the second through holes 27 are provided with at least two through holes which are uniformly distributed on the pipeline 19, the interior of the second through hole 27 is provided with a knob 22, one side of the knob 22 is provided with a second groove 30, and the positions of the medium outlet pipe 20 and the pipeline 19 can be effectively limited through the arrangement of the convex block 24 and each groove and through hole, so that the installation and connection of the pilot operated safety valve are more rapid and convenient.

In conclusion, the pilot operated safety valve capable of being opened and closed quickly comprises a setting valve body 1, a pilot valve body 2 and a main valve body 3, wherein a setting spring 5 is arranged inside the setting valve body 1, a driving block 6 is connected to the outer part of the lower end of the setting spring 5, a bleeder 7 is arranged on the outer surface of one side of the pilot valve body 2, the operation of the pilot operated safety valve is faster and more convenient due to the arrangement of the bleeder 7, the stress area of a sealing surface is increased, and the safety valve is opened and closed quickly, a medium inlet pipe 15 is arranged on the surface of the lower end of the main valve body 3, a sealing washer 16 is arranged at the bottom outlet of the medium inlet pipe 15, the sealing washer 16 is detachably connected with the medium inlet pipe 15, a filter screen is arranged on the sealing washer 16, the sealing performance of the interface is stronger due to the arrangement of the seal washer 16, and foreign matters in a medium can be prevented from entering the inside of the valve body due to the arrangement of the filter screen, the internal blockage of the valve body is avoided, the use of people is facilitated, the side face of the main valve body 3 is provided with the medium outlet pipe 20, the medium outlet pipe 20 is provided with a blind groove 26, a rotary piece 25, a blind hole 28, a convex block 24, a first through hole 23, a first groove 21, a second through hole 27, a knob 22 and a second groove 30, the positions of the medium outlet pipe 20 and the pipeline 19 can be effectively limited through the arrangement of the convex block 24, the grooves and the through holes, and the installation and the connection of the pilot operated safety valve are more rapid and convenient.

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.

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

1. The utility model provides a pilot operated relief valve of quick start-stop, is including setting for valve body (1), pilot valve body (2) and main valve body (3), its characterized in that: the top of the setting valve body (1) is connected with an anti-misoperation screw (4), the lower part of the setting valve body (1) is connected with a pilot valve body (2), a setting spring (5) is arranged inside the setting valve body (1), the lower end of the setting spring (5) is externally connected with a driving block (6), the lower end of the setting valve body (1) is externally connected with a first pressure leading pipeline (10), the outer surface of one side of the pilot valve body (2) is provided with a bleeder (7), and the other side of the pilot valve body (2) is connected with a second pressure leading pipeline (11);

a medium inlet pipe (15) is arranged on the lower end surface of the main valve body (3), a seat returning spring (13) is arranged inside the main valve body (3), a first valve plate (12) is arranged at the top of the seat returning spring (13), a second valve plate (14) is arranged at the bottom of the seat returning spring (13), and the second valve plate (14) is arranged on the top surface of the medium inlet pipe (15);

the side of the main valve body (3) is provided with a medium outlet pipe (20), the medium outlet pipe (20) is provided with a blind groove (26), a rotating part (25) is arranged inside the blind groove (26), a blind hole (28) is arranged in the rotating part (25), a bump (24) is arranged inside the blind hole (28), one side, away from the main valve body (3), of the bump (24) is provided with a pipeline (19), a first through hole (23) is formed in the pipeline (19), the left end of the first through hole (23) is provided with a first groove (21), two sides of the first through hole (23) are provided with second through holes (27), a knob (22) is arranged inside the second through hole (27), and one side of the knob (22) is provided with a second groove (30).

2. The rapid start and stop pilot operated safety valve of claim 1, wherein: the pilot valve is characterized in that a first connector (8) and a second connector (9) are arranged on two sides of the pilot valve body (2), a third connector (17) is arranged at the top of the main valve body (3), a fourth connector (18) is arranged on the side face of a medium inlet pipe (15) below the main valve body (3), two ends of a first pressure leading pipeline (10) are respectively connected to the first connector (8) and the fourth connector (18), and two ends of a second pressure leading pipeline (11) are respectively connected to the second connector (9) and the third connector (17).

3. The rapid start and stop pilot operated safety valve of claim 1, wherein: a sealing washer (16) is arranged at the bottom outlet of the medium inlet pipe (15), the sealing washer (16) is detachably connected with the medium inlet pipe (15), and a filtering wire mesh is arranged on the sealing washer (16).

4. The rapid start and stop pilot operated safety valve of claim 1, wherein: the side wall of the convex block (24) is provided with a convex tooth (29), the blind hole (28) is of a tooth groove structure, the size of the convex tooth (29) is matched with the tooth groove of the blind hole (28), and the convex block (24) and the rotary piece (25) form a rotating structure in the blind groove (26) through the convex tooth (29).

5. The rapid start and stop pilot operated safety valve of claim 1, wherein: the number of the first through holes (23) is not less than two, and the first through holes are evenly distributed on the pipeline (19).

6. The rapid start and stop pilot operated safety valve of claim 1, wherein: the number of the second through holes (27) is not less than two, and the second through holes are evenly distributed on the pipeline (19).

7. The rapid start and stop pilot operated safety valve of claim 1, wherein: and the pilot valve body (2) and the main valve body (3) are fixedly connected by using a limiting steel plate.