CN216479142U

CN216479142U - Intelligent digital electric ultrahigh pressure gas pressure reducing valve

Info

Publication number: CN216479142U
Application number: CN202122843605.5U
Authority: CN
Inventors: 卢洪康
Original assignee: Xi'an Huiyuan Instruments & Valves Co ltd
Current assignee: Xi'an Huiyuan Instruments & Valves Co ltd
Priority date: 2021-11-18
Filing date: 2021-11-18
Publication date: 2022-05-10
Anticipated expiration: 2031-11-18

Abstract

The utility model belongs to the technical field of valves, in particular to an intelligent digital electric ultrahigh pressure gas pressure reducing valve which comprises an upper valve body, wherein a connecting seat is arranged at the upper end of the upper valve body, a support is arranged at the upper end of the connecting seat, a digital intelligent electric actuator is arranged at the upper end of the support, a lower valve body is arranged at the bottom end of the upper valve body, a hexagon nut is arranged at the bottom end inside the lower valve body, a valve core is arranged inside the hexagon nut, an auxiliary spring is arranged at the bottom end of the valve core, the bottom end of the auxiliary spring is connected with the hexagon nut, a pressure plate is arranged at the upper end of the valve core, a valve clack is embedded inside the pressure plate, the upper end surface of the valve clack is connected with the inside of the lower valve body, a piston is arranged at the upper end inside the lower valve body, a compression nut is arranged at the bottom end of the piston, and a piston sealing gasket is connected inside the bottom end of the piston through the compression nut, the utility model has stable decompression, convenient use and better integral use effect.

Description

Intelligent digital electric ultrahigh pressure gas pressure reducing valve

Technical Field

The utility model belongs to the technical field of valves, and particularly relates to an intelligent digital electric ultrahigh-pressure gas reducing valve.

Background

An electric pressure reducing valve is a typical application of a pressure reducing device, a pressure regulating device. The automatic control and regulation system is widely applied to the automatic control and regulation system of the industrial, national defense and civil high-pressure gas decompression. At present, the intelligent electric pressure reducing valve on the market has the following defects: the valve has the advantages of large volume, no valve position feedback output, large pressure fluctuation, poor regulation precision, poor stability, single function and poor integral use effect.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems in the prior art, the utility model provides an intelligent digital electric ultrahigh-pressure gas reducing valve which has the characteristics of stable pressure reduction and convenient use.

In order to achieve the purpose, the utility model provides the following technical scheme: an intelligent digital electric ultrahigh pressure gas pressure reducing valve comprises an upper valve body, wherein a connecting seat is installed at the upper end of the upper valve body, a support is installed at the upper end of the connecting seat, a digital intelligent electric actuator is installed at the upper end of the support, a lower valve body is installed at the bottom end of the upper valve body, a hexagon nut is installed at the bottom end inside the lower valve body, a valve core is installed inside the hexagon nut, an auxiliary spring is installed at the bottom end of the valve core, the bottom end of the auxiliary spring is connected with the hexagon nut, a pressing plate is arranged at the upper end of the valve core, a valve clack is installed in the pressing plate in an embedded mode, the upper end face of the valve clack is connected with the inside of the lower valve body, a piston is installed at the upper end inside of the lower valve body, a compression nut is arranged at the bottom end of the piston, a piston sealing gasket is connected to the inside of the bottom end of the piston through the compression nut, and the upper end face of the valve core is connected with the piston sealing gasket, the inside of going up the valve body is provided with adjusting spring, just the upper end of piston links to each other with adjusting spring, adjusting spring's upper end is provided with the valve rod, the inside that the valve body extends to the support is run through to the upper end of valve rod.

As the optimal technical scheme of the intelligent digital electric ultrahigh pressure gas reducing valve, a locking nut is arranged at the upper end of the valve rod, and the valve rod is connected with a digital intelligent electric actuator through the locking nut.

As the preferred technical scheme of the intelligent digital electric ultrahigh pressure gas reducing valve, a valve port is formed in the lower valve body, and the valve port comprises an inlet on one side in the lower valve body and an outlet on the other side in the lower valve body.

As the preferred technical scheme of the intelligent digital electric ultrahigh pressure gas reducing valve, an O-shaped sealing ring is arranged between the hexagonal nut and the lower valve body.

As the preferable technical scheme of the intelligent digital electric ultrahigh pressure gas reducing valve, a sealing pair is arranged at the joint of the interior of the lower valve body and the piston.

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

1. the valve core adopts a conical sealing structure, and through throttling and pressure reduction, the abrasion of high pressure to the valve core is reduced, and the service life of the valve is greatly prolonged.

2. The utility model adopts a large-flow erosion-resistant multi-stage pressure reduction structure inside, has linear flow characteristic and high control precision, and can realize the purpose of stepless pressure reduction.

3. The utility model adopts the digital intelligent electric actuator as the actuating mechanism, has the characteristics of small volume, light weight, high control precision and large adjusting range, and the unique zero point following technology of the digital intelligent electric actuator can always follow the valve clack and the piston under the condition of valve clack abrasion, can keep the preset stroke operation, reduces the impact damage of media to the valve clack caused by untight closing, greatly prolongs the service life of the valve, and can automatically complete one-time full-stroke self-detection by the digital intelligent electric actuator when giving a zero point position signal to the digital intelligent electric actuator every time, thereby having better integral use effect.

Drawings

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

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

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic diagram of the working principle of the present invention;

in the figure: 1. a digital intelligent electric actuator; 2. locking the nut; 3. a support; 4. connecting seats; 5. a valve stem; 6. adjusting the spring; 7. a piston; 8. a sealing pair; 9. a compression nut; 10. a valve flap; 11. a valve port; 12. a valve core; 13. a hexagonal nut; 14. an O-shaped sealing ring; 15. an auxiliary spring; 16. a lower valve body; 17. pressing a plate; 18. a piston seal; 19. and an upper valve body.

Detailed Description

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

Examples

Referring to fig. 1, fig. 2 and fig. 3, the present invention provides the following technical solutions: an intelligent digital electric ultrahigh pressure gas pressure reducing valve comprises an upper valve body 19, wherein a connecting seat 4 is installed at the upper end of the upper valve body 19, a support 3 is installed at the upper end of the connecting seat 4, a digital intelligent electric actuator 1 is installed at the upper end of the support 3, a lower valve body 16 is installed at the bottom end of the upper valve body 19, a hexagonal nut 13 is installed at the inner bottom end of the lower valve body 16, a valve core 12 is installed inside the hexagonal nut 13, an auxiliary spring 15 is installed at the bottom end of the valve core 12, the bottom end of the auxiliary spring 15 is connected with the hexagonal nut 13, a pressure plate 17 is arranged at the upper end of the valve core 12, a valve clack 10 is installed in an embedded mode inside the pressure plate 17, the upper end face of the valve clack 10 is connected with the inside of the lower valve body 16, a piston 7 is installed at the upper end inside the lower valve body 16, a compression nut 9 is arranged at the bottom end of the piston 7, a piston sealing gasket 18 is connected with the bottom end of the piston 7 through the compression nut 9, and the upper end face of the valve core 12 is connected with the piston sealing gasket 18, the inside of going up valve body 19 is provided with adjusting spring 6, and the upper end of piston 7 links to each other with adjusting spring 6, and adjusting spring 6's upper end is provided with valve rod 5, and the upper end of valve rod 5 runs through the inside that goes up valve body 19 and extend to support 3, and the upper end of valve rod 5 is provided with lock nut 2, and valve rod 5 passes through lock nut 2 with digital intelligent electric actuator 1 and links to each other.

In the embodiment, the valve core 12 adopts a conical sealing structure, and through throttling and pressure reduction, the abrasion of high pressure to the valve core 12 is reduced, and the service life of the valve is greatly prolonged; the internal structure of the utility model adopts a large-flow erosion-resistant multi-stage pressure reduction structure, the flow characteristic is linear, the control precision is high, and the purpose of stepless pressure reduction can be realized; the utility model adopts a digital intelligent electric actuator 1 as an actuating mechanism, has the characteristics of small volume, light weight, high control precision and large adjusting range, and a zero point following technology which is unique to the digital intelligent electric actuator 1 can always follow a valve clack 10 and a piston 7 under the condition that the valve clack 10 is worn, can keep the running of a preset stroke, reduces the impact damage of a medium to the valve clack 10 caused by untight closing, greatly improves the service life of a valve, can automatically complete one-time full-stroke self detection by the digital intelligent electric actuator 1 when giving a zero point position signal to the digital intelligent electric actuator 1 every time, has better integral use effect, wherein the digital intelligent electric actuator 1 is the only control technology for realizing one-key positioning in the same industry in China, in addition, a porous throttling sleeve (not marked in the figure) is arranged on the outer layer of a valve core 12, can carry out partial pressure diffusion with high pressure gas through the orifice of sleeve the inside to reach the effect of falling the pressure and making an uproar, regulating spring 6 has adopted the spiral stainless steel spring of wave form, can avoid causing the spring fatigue because of long-time operation and influence the control accuracy of valve, a relief valve (not shown in the figure) has been installed additional in governing valve department of valve body lower extreme, can stretch out and draw back according to the parameter of setting for automatically when the pressure oscillation, alleviate pressure shock, reach stepless decompression's purpose, in this embodiment, the content of not making detailed description is prior art.

Referring to fig. 1 and 2, a valve port 11 is formed in the lower valve body 16, and the valve port 11 includes an inlet on one side of the interior of the lower valve body 16 and an outlet on the other side of the interior.

In this embodiment, the medium can pass through the valve port 11 inside the lower valve body 16, so as to realize the control of the medium.

Referring to fig. 1 and 2, an O-ring 14 is installed between the hexagonal nut 13 and the lower valve body 16, and a seal pair 8 is installed at a connection portion between the inside of the lower valve body 16 and the piston 7.

In this embodiment, the O-ring 14 and the seal pair 8 are both elastic members, so as to improve the overall sealing and leakage-proof effects of the present invention, and facilitate the safe use of the present invention.

The utility model has the following use flow and working principle: when the pressure reducing valve leaves a factory, the adjusting spring 6 is in an uncompressed state, high-pressure medium enters from an inlet of the valve port 11, medium force F1 acts on the valve port 11, the valve port 11 is in a closed state at the moment, when the pressure reducing valve is used, the valve rod 5 moves downwards, the adjusting spring 6 is compressed to push the piston 7 to move downwards to drive the valve core 12 to move downwards so as to open the valve port 11, output medium pressure P2 is provided at the inlet of the valve port 11, when P2 meets a set requirement, the existing state is maintained, the piston 7 in the valve port 11 is subjected to upward medium force F2 at the moment, downward force F3 is provided to the piston 7 by the adjusting spring 6, the magnitude of force F3 of the adjusting spring 6 is adjusted so that the piston 7 is in a balanced state when F3 is the same as F2, the inlet of the valve port 11 is subjected to medium force to close the valve port 11, at the moment, the output end of the pressure reducing valve is stably output, and when the output pressure P2 exceeds a set value, the force F2 generated at the outlet end of the pressure reducing valve is increased, the original force balance is broken, the force F2 acting on the piston 7 is larger than the force F3 of the adjusting spring 6, the piston 7 moves upwards, one side of the lower valve body 16 is opened by a sealing opening sealed by the piston 7, a small amount of medium is discharged from an exhaust hole, the valve rod 5 also moves upwards due to the action of the adjusting spring 6 while the piston 7 moves upwards, the stroke of the valve port 11 is reduced, the output pressure P2 is reduced until a new balance is achieved, and the output pressure value returns to a set value.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Electronic superhigh pressure gas relief pressure valve of intelligence digital, including last valve body (19), its characterized in that: the upper end of the upper valve body (19) is provided with a connecting seat (4), the upper end of the connecting seat (4) is provided with a support (3), the upper end of the support (3) is provided with a digital intelligent electric actuator (1), the bottom end of the upper valve body (19) is provided with a lower valve body (16), the inner bottom end of the lower valve body (16) is provided with a hexagon nut (13), the inner part of the hexagon nut (13) is provided with a valve core (12), the bottom end of the valve core (12) is provided with an auxiliary spring (15), the bottom end of the auxiliary spring (15) is connected with the hexagon nut (13), the upper end of the valve core (12) is provided with a pressing plate (17), the valve clack (10) is embedded in the pressing plate (17), the upper end surface of the valve clack (10) is connected with the inner part of the lower valve body (16), the inner upper end of the lower valve body (16) is provided with a piston (7), the bottom of piston (7) is provided with gland nut (9), the inside sealed pad (18) of piston that is connected with through gland nut (9) of bottom of piston (7), just the up end of case (12) links to each other with the sealed pad (18) of piston, the inside of going up valve body (19) is provided with adjusting spring (6), just the upper end of piston (7) links to each other with adjusting spring (6), the upper end of adjusting spring (6) is provided with valve rod (5), the upper end of valve rod (5) runs through the inside that upper valve body (19) extended to support (3).

2. The intelligent digital electric ultrahigh-pressure gas pressure reducing valve according to claim 1, characterized in that: the intelligent electric actuator is characterized in that a locking nut (2) is arranged at the upper end of the valve rod (5), and the valve rod (5) is connected with the digital intelligent electric actuator (1) through the locking nut (2).

3. The intelligent digital electric ultrahigh-pressure gas pressure reducing valve according to claim 1, characterized in that: the valve port (11) is formed in the lower valve body (16), and the valve port (11) comprises an inlet on one side of the interior of the lower valve body (16) and an outlet on the other side of the interior of the lower valve body.

4. The intelligent digital electric ultrahigh-pressure gas pressure reducing valve according to claim 1, characterized in that: an O-shaped sealing ring (14) is arranged between the hexagonal nut (13) and the lower valve body (16).

5. The intelligent digital electric ultrahigh-pressure gas pressure reducing valve according to claim 1, characterized in that: and a sealing pair (8) is arranged at the joint of the interior of the lower valve body (16) and the piston (7).