CN218326215U

CN218326215U - High-medium pressure valve with overpressure alarm function

Info

Publication number: CN218326215U
Application number: CN202222146457.6U
Authority: CN
Inventors: 张德魁; 刘新旭; 董乃丰; 史新建
Original assignee: Shandong Zhongquan Power Station Valve Manufacturing Co ltd
Current assignee: Shandong Zhongquan Power Station Valve Manufacturing Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2023-01-17
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses a high and medium pressure valve with excessive pressure alarm function, including valve body, valve plate, transmission shaft, axle sleeve, first pressure sensor, alarm control ware, first pressure plate and second pressure plate, be provided with the baffle in the valve body, be provided with the valve plate in the valve body, the valve plate lower surface is provided with first pressure plate and second pressure plate, constitute the second compartment between first pressure plate upper surface and the valve plate lower surface, constitute the first compartment between second pressure plate upper surface and the second pressure plate lower surface; the transmission shaft is internally provided with a hollow cavity, the upper end of the hollow cavity is connected with a first pressure sensor and a sealing pipe in an inserting mode, and the surface of one side of the shaft sleeve is provided with an alarm controller. The utility model discloses set up first pressure plate and second pressure plate in the valve plate below, can carry out the segmentation monitoring to the pressure that the valve plate receives, can carry out early warning in advance, give abundant emergency treatment time, reduce incident's emergence.

Description

High-medium pressure valve with overpressure alarm function

Technical Field

The utility model relates to the technical field of valves, specifically be a high-and-medium-pressure valve with excessive pressure alarm function.

Background

The valve mainly plays the role of cutting off and throttling on the pipeline. Due to the wide use of high-pressure technology, the performance of the ultra-high pressure valve in the ultra-high pressure system directly affects the reliability, safety, working efficiency and service life of the whole system. In the high-pressure valve use, because transmission medium is under the closed condition, the high-pressure medium is in the oppression state to the long-time between valve plate and the valve body, is in the oppression state for a long time and is unfavorable for the follow-up use of high-pressure valve, can greatly reduced high-pressure valve's life, can cause the incident even.

Through massive search, the prior art is found, and the publication number is as follows: CN103090064A discloses an overpressure protection valve to limit the temperature of the outlet water and ensure that the temperature of the outlet water is not too high. The overvoltage protection valve comprises a valve body, wherein the valve body is provided with a water inlet pipe and a water outlet pipe, the water outlet pipe is provided with a regulating valve core for regulating flow, and the key point is that the side part of the water outlet pipe is provided with a function cavity, an expansion cavity, a spring, a pull rod and a protection valve core which are communicated with the water outlet pipe are arranged in the function cavity, one end of the protection valve core penetrates through the side wall of the water outlet pipe and extends into the water outlet pipe, and the other end of the protection valve core penetrates through the top wall of the function cavity and extends out of the function cavity; the side wall of one side of the expansion cavity is a rubber film, the pull rod is fixed in the functional cavity through a rotating shaft, one end of the pull rod abuts against the rubber film, the other end of the pull rod abuts against the side wall of the protection valve core, and a pit matched with the pull rod is formed in the side wall of the protection valve core; the spring is sleeved on the protective valve core, one end of the spring is connected with the water outlet pipe, and the other end of the spring is connected with a protruding part arranged on the side wall of the protective valve core.

In summary, the existing high-pressure valve is used as a special valve, when the valve is closed, the pressure of the transmission medium is concentrated on the valve plate, so that the overpressure alarm of the high-pressure valve is particularly important, the stage effectiveness of the valve can be guaranteed, sufficient time can be provided for pipeline overpressure to overhaul, and safety accidents can be avoided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-and-medium pressure valve with excessive pressure alarm function to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-medium pressure valve with an overpressure alarm function comprises a valve body, a valve plate, a transmission shaft, a shaft sleeve, a first pressure sensor, an alarm controller, a first pressure plate and a second pressure plate, wherein a partition plate is arranged inside the valve body, the valve plate is arranged inside the valve body, the shaft sleeve is arranged on the upper surface of the valve body, the transmission shaft penetrating through the inside of the shaft sleeve is arranged on the upper surface of the valve plate, the first pressure plate and the second pressure plate are arranged on the lower surface of the valve plate, a second compartment is formed between the upper surface of the first pressure plate and the lower surface of the valve plate, and a first compartment is formed between the upper surface of the second pressure plate and the lower surface of the second pressure plate;

the transmission shaft is internally provided with a hollow cavity, the upper end of the hollow cavity is connected with a first pressure sensor and a sealing pipe in an inserting mode, and the surface of one side of the shaft sleeve is provided with an alarm controller.

Preferably, the partition plate is in a Z-shaped design, and the surface of the partition plate is provided with a through hole matched with the valve plate;

the outer wall of the upper end of the valve plate is attached with a rubber pad, and the diameter of the outer wall of the upper end of the valve plate is larger than that of the inner wall of the through hole.

Preferably, sealing sleeves are arranged at the edges of the first compartment and the second compartment;

the second compartment is communicated with the inside of the hollow cavity, a liquid discharge hole is formed in the position of the circle center of the first pressure plate, and an electromagnetic valve is inserted into the liquid discharge hole;

and a second pressure sensor is inserted into the upper surface of the first pressure plate.

Preferably, first pressure plate upper surface is provided with the first spring that is circular array distribution, and first spring upper end is connected with the valve plate lower surface, second pressure plate upper surface is provided with the second spring that is circular array distribution, and second spring upper end is connected with first pressure plate lower surface.

Rubber rings are arranged at the edges of the first pressure plate and the second pressure plate.

Preferably, the inside embedding of axle sleeve installs the sealing ring of laminating mutually with the transmission shaft surface, the welding of transmission shaft upper end has the swing handle.

Preferably, a screw opening is formed in an opening at the upper end of the shaft sleeve, and threads meshed with the screw opening are formed in the outer wall of the upper end of the transmission shaft.

Preferably, the inner wall of the upper end of the shaft sleeve is provided with a limiting groove, and the surface of the upper end of the transmission shaft is welded with a limiting ring.

Preferably, the alarm controller is connected with a transmission line penetrating through the inside of the sealing tube, and the alarm controller is connected with the first pressure sensor.

Preferably, the hollow cavity, the first compartment and the second compartment are filled with hydraulic oil.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a set up first pressure plate and second pressure plate below the valve plate, form first compartment and second compartment, when the valve plate is in the closed condition, the pressure of high-pressure transmission medium acts on second pressure plate lower surface, the second pressure plate receives pressure rebound, increase the pressure of hydraulic oil in the first compartment, second pressure sensor detects pressure in to first compartment, after exceeding the settlement pressure value, transmit to alarm controller through the transmission line, send the early warning alarm, secondly, after pressure in first compartment reaches the critical value, alarm controller control solenoid valve opens, can be linked together first compartment and second compartment, cooperate first pressure plate rebound, increase the intercommunication volume of hydraulic oil, disperse pressure value, first pressure plate and second pressure plate receive the pressure effect of high-pressure transmission medium, first pressure sensor detects once more in the cavity, after obtaining the setting value, send excessive pressure alarm through alarm controller, form early warning signal and alarm signal, can give staff and send early warning signal in advance, give staff's sufficient time to overhaul.

Drawings

FIG. 1 is a schematic view of the main sectional structure of the valve body of the present invention;

FIG. 2 is a schematic sectional view of the valve plate of the present invention;

fig. 3 is a schematic sectional view of the shaft sleeve and the transmission shaft of the present invention;

fig. 4 is a schematic view of the local distribution structure of the first compartment and the second compartment of the present invention;

fig. 5 is a schematic top view of the first pressure plate according to the present invention.

In the figure: 1. a valve body; 2. a valve plate; 3. a partition plate; 4. a drive shaft; 5. a shaft sleeve; 6. a first pressure sensor; 7. rotating a handle; 8. an alarm controller; 9. a through hole; 10. a first pressure plate; 11. a second pressure plate; 12. a liquid discharge hole; 13. a first spring; 14. a second spring; 15. a rubber ring; 16. a rubber pad; 17. a second pressure sensor; 18. an electromagnetic valve; 19. a sealing tube; 20. a limiting groove; 21. a transmission line; 22. a seal ring; 23. a limiting ring; 24. a thread; 25. screwing; 26. a hollow cavity; 27. a first compartment; 28. a second compartment; 29. and (7) sealing sleeves.

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.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", 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 simplification of the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "provided," "connected," and the like are to be construed broadly, such as "connected," which may be 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 as a specific case by those skilled in the art.

Referring to fig. 1 to 5, the present invention provides three embodiments:

the first embodiment is as follows:

a high-medium pressure valve with an overpressure alarm function comprises a valve body 1, a valve plate 2, a transmission shaft 4, a shaft sleeve 5, a first pressure sensor 6, an alarm controller 8, a first pressure plate 10 and a second pressure plate 11, wherein a partition plate 3 is arranged inside the valve body 1, the valve plate 2 is arranged inside the valve body 1, the partition plate 3 is in a Z-shaped design, and a through hole 9 matched with the valve plate 2 is formed in the surface of the partition plate 3; the outer wall of the upper end of the valve plate 2 is attached with a rubber pad 16, and the diameter of the outer wall of the upper end of the valve plate 2 is larger than that of the inner wall of the through hole 9. The upper surface of the valve body 1 is provided with an axle sleeve 5, the upper surface of the valve plate 2 is provided with a transmission shaft 4 penetrating through the inside of the axle sleeve 5, a sealing ring 22 attached to the surface of the transmission shaft 4 is embedded in the axle sleeve 5, a rotary handle 7 is welded at the upper end of the transmission shaft 4, a screw 25 is arranged at the opening of the upper end of the axle sleeve 5, and a thread 24 meshed with the screw 25 is arranged on the outer wall of the upper end of the transmission shaft 4. The inner wall of the upper end of the shaft sleeve 5 is provided with a limiting groove 20, and the surface of the upper end of the transmission shaft 4 is welded with a limiting ring 23.

A first pressure plate 10 and a second pressure plate 11 are arranged on the lower surface of the valve plate 2, rubber rings 15 are arranged at the edges of the first pressure plate 10 and the second pressure plate 11, a second compartment 28 is formed between the upper surface of the first pressure plate 10 and the lower surface of the valve plate 2, a first compartment 27 is formed between the upper surface of the second pressure plate 11 and the lower surface of the second pressure plate 11, sealing sleeves 29 are arranged at the edges of the first compartment 27 and the second compartment 28, the second compartment 28 is communicated with the inside of the hollow cavity 26, a liquid discharge hole 12 is formed in the circle center position of the first pressure plate 10, an electromagnetic valve 18 is inserted into the liquid discharge hole 12, and a second pressure sensor 17 is inserted into the upper surface of the first pressure plate 10; when the valve plate 2 is in a closed state, the pressure of a high-pressure transmission medium acts on the lower surface of the second pressure plate 11, the second pressure plate 11 moves upwards under the action of the pressure to increase the pressure of hydraulic oil in the first compartment 27, the second pressure sensor 17 detects the pressure in the first compartment 27, and after the pressure exceeds a set pressure value, the pressure is transmitted to the alarm controller 8 through the transmission line 21 to send out an early warning alarm

Example two:

the hydraulic pressure detection device is characterized in that a hollow cavity 26 is arranged inside the transmission shaft 4, a first pressure sensor 6 and a sealing pipe 19 are inserted into the upper end of the hollow cavity 26, an alarm controller 8 is installed on the surface of one side of the shaft sleeve 5, the alarm controller 8 is connected with a transmission line 21 penetrating through the sealing pipe 19, the alarm controller 8 is connected with the first pressure sensor 6, the hollow cavity 26, the first partition 27 and the second partition 28 are filled with hydraulic oil, when the valve plate 2 is in a closed state, the pressure of high-pressure transmission media acts on the lower surface of the second pressure plate 11, the second pressure plate 11 moves upwards under pressure, the pressure of the hydraulic oil in the first partition 27 is increased, the second pressure sensor 17 detects the pressure in the first partition 27, when the pressure exceeds a set pressure value, the pressure is transmitted to the alarm controller 8 through the transmission line 21 to give an early warning alarm, the alarm, when the pressure in the first partition 27 reaches a critical value, the alarm controller 8 controls the electromagnetic valve 18 to be opened, the first partition 27 can be communicated with the second partition 28, the first partition 10 moves upwards to increase the communicated with the volume, the pressure plate, the pressure is dispersed, the pressure of the first partition 10 and the second partition 11 is transmitted, the alarm signal is transmitted to a warning signal to the alarm controller 6, the working pressure sensor to form a warning signal, the warning signal, and the warning signal to be detected by a person, and the warning signal to be detected by the working pressure sensor 26, and the working pressure sensor 8, and the working pressure of the working pressure sensor 8, the working pressure sensor, and the working pressure sensor.

Example three:

first pressure plate 10 upper surface is provided with first spring 13 that is circular array and distributes, and first spring 13 upper end is connected with valve plate 2 lower surface, and second pressure plate 11 upper surface is provided with second spring 14 that is circular array and distributes, and second spring 14 upper end is connected with first pressure plate 10 lower surface, and first pressure plate 10 and second pressure plate 11's the process that resets are as follows: after the pressure detection is finished, the alarm controller 8 controls the electromagnetic valve 18 to be continuously opened, the first compartment 27 and the second compartment 28 are kept communicated, the first spring 13 and the second spring 14 respectively expand the inner spaces of the first compartment 27 and the second compartment 28 through elastic force, so that hydraulic oil in the hollow cavity 26 flows back to the first compartment 27 and the second compartment 28, the sufficiency of the hydraulic oil in the first compartment 27 and the second compartment 28 is maintained, after the pressure detection is reset, the electromagnetic valve 18 is closed, the first compartment 27 and the second compartment 28 are separated, and the first pressure plate 10 and the second pressure plate 11 are reset to the initial state.

The working principle is as follows: when the valve plate 2 is in a closed state, the pressure of a high-pressure transmission medium acts on the lower surface of the second pressure plate 11, the second pressure plate 11 moves upwards under the action of the pressure, the pressure of hydraulic oil in the first compartment 27 is increased, the second pressure sensor 17 detects the pressure in the first compartment 27, the pressure is transmitted to the alarm controller 8 through the transmission line 21 after the pressure exceeds a set pressure value, an early warning alarm is sent out, then, after the pressure in the first compartment 27 reaches a critical value, the alarm controller 8 controls the electromagnetic valve 18 to be opened, the first compartment 27 and the second compartment 28 can be communicated, the first pressure plate 10 moves upwards in a matched mode, the communication volume of the hydraulic oil is increased, the pressure values are dispersed, the first pressure plate 10 and the second pressure plate 11 are under the action of the pressure of the high-pressure transmission medium, the first pressure sensor 6 detects the pressure in the middle cavity 26 again, after a set value is obtained, the alarm is sent out through the alarm controller 8, an overpressure alarm is formed, and an early warning signal and an alarm signal can be sent out in advance by working personnel, and the overhaul can be given enough time for the working personnel.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high-and-medium pressure valve with excessive pressure alarm function, includes valve body (1), valve plate (2), transmission shaft (4), axle sleeve (5), first pressure sensor (6), alarm control ware (8), first pressure plate (10) and second pressure plate (11), its characterized in that: a partition plate (3) is arranged in the valve body (1), a valve plate (2) is arranged in the valve body (1), a shaft sleeve (5) is arranged on the upper surface of the valve body (1), a transmission shaft (4) penetrating through the shaft sleeve (5) is arranged on the upper surface of the valve plate (2), a first pressure plate (10) and a second pressure plate (11) are arranged on the lower surface of the valve plate (2), a second compartment (28) is formed between the upper surface of the first pressure plate (10) and the lower surface of the valve plate (2), and a first compartment (27) is formed between the upper surface of the second pressure plate (11) and the lower surface of the second pressure plate (11);

the transmission shaft (4) is internally provided with a hollow cavity (26), the upper end of the hollow cavity (26) is inserted with a first pressure sensor (6) and a sealing pipe (19), and the surface of one side of the shaft sleeve (5) is provided with an alarm controller (8).

2. High and medium pressure valve with overpressure warning function according to claim 1, characterized in that: the partition plate (3) is in a Z-shaped design, and a through hole (9) matched with the valve plate (2) is formed in the surface of the partition plate (3);

the outer wall of the upper end of the valve plate (2) is attached with a rubber pad (16), and the diameter of the outer wall of the upper end of the valve plate (2) is larger than that of the inner wall of the through hole (9).

3. High and medium pressure valve with overpressure warning function according to claim 1, characterized in that: sealing sleeves (29) are arranged at the edges of the first compartment (27) and the second compartment (28);

the second compartment (28) is communicated with the inside of the hollow cavity (26), a liquid discharge hole (12) is formed in the position of the circle center of the first pressure plate (10), and an electromagnetic valve (18) is inserted into the liquid discharge hole (12);

and a second pressure sensor (17) is inserted into the upper surface of the first pressure plate (10).

4. High and medium pressure valve with overpressure warning function according to claim 1, characterized in that: first pressure plate (10) upper surface is provided with first spring (13) that are circular array and distribute, and first spring (13) upper end is connected with valve plate (2) lower surface, second pressure plate (11) upper surface is provided with second spring (14) that are circular array and distribute, and second spring (14) upper end is connected with first pressure plate (10) lower surface.

5. A high and medium pressure valve with overpressure warning function as claimed in claim 1, characterized in that: the edges of the first pressure plate (10) and the second pressure plate (11) are provided with rubber rings (15).

6. A high and medium pressure valve with overpressure warning function as claimed in claim 1, characterized in that: the sealing ring (22) which is attached to the surface of the transmission shaft (4) is embedded in the shaft sleeve (5), and a rotary handle (7) is welded at the upper end of the transmission shaft (4).

7. High and medium pressure valve with overpressure warning function according to claim 1, characterized in that: the upper end opening of the shaft sleeve (5) is provided with a screw opening (25), and the outer wall of the upper end of the transmission shaft (4) is provided with a thread (24) meshed with the screw opening (25).

8. High and medium pressure valve with overpressure warning function according to claim 1, characterized in that: the limiting groove (20) is formed in the inner wall of the upper end of the shaft sleeve (5), and the limiting ring (23) is welded on the surface of the upper end of the transmission shaft (4).

9. A high and medium pressure valve with overpressure warning function as claimed in claim 1, characterized in that: the alarm controller (8) is connected with a transmission line (21) penetrating through the inside of the sealing pipe (19), and the alarm controller (8) is connected with the first pressure sensor (6).

10. A high and medium pressure valve with overpressure warning function as claimed in claim 1, characterized in that: and hydraulic oil is filled in the hollow cavity (26), the first compartment (27) and the second compartment (28).