CN213451794U

CN213451794U - Valve for use under high pressure

Info

Publication number: CN213451794U
Application number: CN202022322918.1U
Authority: CN
Inventors: 邱枝红; 黄静生; 周勇; 杨洋
Original assignee: Jiangsu Mingtong Fulu Fluid Control Equipment Co ltd
Current assignee: Jiangsu Mingtong Fulu Fluid Control Equipment Co ltd
Priority date: 2020-10-19
Filing date: 2020-10-19
Publication date: 2021-06-15
Anticipated expiration: 2030-10-19

Abstract

The utility model discloses a valve used under high pressure, which comprises a valve, the bottom of the inner wall of the valve is connected with a buffer device, the buffer device comprises a shell, the inner part of the shell is connected with an air bag, a drainage chamber is formed between the air bag and the shell, the buffer device is connected with the bottom of the inner wall of the valve, so as to enhance the pressure resistance of the valve, the valve can absorb pressure and reduce the occurrence of high-pressure damage, when the valve is closed, the high-pressure pushing fluid generated by the fluid controlled by the valve because the flow can not be stopped rapidly flows reversely, the valve buffers the suddenly increased pressure by guiding the controlled fluid into the drainage chamber, the bottom of the air bag is connected with an inflation inlet, the bottom of the shell is contacted with the outer wall of the inflation inlet, the top of the shell is connected with a piston, the utility model discloses, the pressure-resistant cable has the characteristics of strong practicability and strong pressure resistance.

Description

Valve for use under high pressure

Technical Field

The utility model relates to the technical field of valves, specifically be a valve for using under high pressure.

Background

The valve is mainly used in the fields of material manufacturing, processing technology and the like. Can be used for controlling the flow of fluids such as conditioning air, water and the like, and is an indispensable element in modern industry.

The existing valve has poor high pressure resistance and poor practicability; meanwhile, the existing valve can not operate under the condition of high pressure. Therefore, it is desirable to design a valve for use at high pressures that is robust and pressure resistant.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a valve for using under high pressure to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: a valve used for using under high pressure, including the valve, the bottom of inner wall of the said valve connects with the snubber assembly, the said snubber assembly includes the body, the internal connection of the said body has gasbags, the middle of said gasbags and body forms the drainage chamber, connect the snubber assembly in the bottom of inner wall of the valve, in order to strengthen the compressive capacity of the valve, let the valve itself absorb the pressure, reduce the emergence damaged situation because of the high pressure, when because the valve is closed, the fluid that the valve controls because the high pressure that can't stop flowing rapidly produced promotes the fluid to flow in the opposite directions, the valve buffers the pressure that increases suddenly by guiding the fluid controlled into the drainage chamber.

According to the technical scheme, the bottom of the air bag is connected with the inflation inlet, the bottom of the shell is in contact with the outer wall of the inflation inlet, the top of the shell is connected with the piston, nitrogen is inflated into the air bag through the inflation inlet, the nitrogen is compressible gas, when the valve is closed, fluid controlled by the valve pushes the fluid to reversely flow due to high pressure generated by incapability of rapidly stopping flowing, the piston is pushed away from the shell to enter the drainage chamber by the reverse movement of the fluid, the piston is pushed into the drainage chamber, the fluid controlled by the valve enters the drainage chamber, and the air bag filled with nitrogen is compressed by impact to buffer and absorb suddenly increased pressure.

According to the technical scheme, the top of the valve is connected with the spring, the other end of the spring is connected with the compression box, the spring is arranged at the top of the valve to reset the valve through resilience of the spring under the high-pressure condition, and the problem that the valve cannot be closed and opened due to high pressure is avoided.

According to the technical scheme, a driving device is fixed on one side of the valve and comprises a motor, a rope disc is connected to an output shaft of the motor, one end of a wire rope of the rope disc and the outer wall of the valve are of a matched structure, the motor is started under normal pressure, the output shaft of the motor drives the rope disc to rotate, the rope disc rotates to pull the valve to ascend, however, under the high-pressure condition, the power of the motor cannot drive the valve to ascend, when the motor runs, the pressure in the compression box is reduced due to the force for driving the valve to ascend, pressure difference is formed at two ends of the valve, the valve is pushed to ascend through the pressure difference, and the problem that the valve cannot be controlled due to failure of the high-pressure motor can be solved by utilizing the pressure difference to start the valve, so.

According to the technical scheme, the outer wall of the valve is connected with the inflow port, the bottom of the inflow port is fixedly connected with the outflow port, when the valve is started to ascend, fluid controlled and adjusted by the valve enters the inflow port to flow, flows to the outflow port and then flows out through the outflow port.

According to the technical scheme, one side of piston is connected with the telescopic link, the other end fixed connection of telescopic link is on the inner wall of influent stream mouth, be equipped with expansion joint on the telescopic link, the piston is stretched out through the telescopic link by high pressure and is left the casing and not be in uncontrollable state, still is connected on the inner wall of influent stream mouth, when near the pressure of valve obtains balanced, nitrogen gas inflation drives the gasbag and extends back original shape to promote the piston motion, the telescopic link passes through the contraction joint withdrawal, drives the piston and gets back to original position.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model is characterized in that the utility model,

(1) the buffer device is connected to the bottom of the inner wall of the valve, so that the pressure resistance of the valve can be enhanced, the pressure of the valve can be absorbed, nitrogen is filled into the air bag through the inflation inlet, the nitrogen is compressible gas, when the valve is closed, fluid controlled by the valve cannot rapidly stop flowing to generate high pressure to push the fluid to reversely flow, the piston is pushed away from the shell to enter the drainage chamber by the reverse movement of the fluid, the piston is pushed into the drainage chamber, the fluid controlled by the valve enters the drainage chamber, the air bag filled with the nitrogen is impacted and compressed to absorb the suddenly increased pressure, the occurrence of the condition of damage caused by high pressure is reduced, and the service life of the valve can be prolonged under the high pressure condition;

(2) by arranging the driving device, under the high-pressure condition, the power of the motor can not drive the valve to rise, but when the motor runs, the force for driving the valve to rise enables the pressure in the compression box to fall, pressure difference is formed at two ends of the valve, the valve is pushed to rise through the pressure difference, and the problem that the valve cannot be controlled due to failure of the high-pressure motor can be solved by starting the valve through the pressure difference, so that the valve can be normally used under the high-pressure condition;

(3) through addding the spring for the valve resets through the resilience of spring under the high pressure condition, avoids the problem that the valve can't be closed because of the high pressure appears, reduces the wasting of resources because of the unable normal close of valve causes.

Drawings

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

In the drawings:

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

FIG. 2 is a schematic structural view of the buffering device of the present invention;

fig. 3 is a schematic view of the telescopic rod structure and the position thereof;

in the figure: 1. a motor; 2. a rope reel; 3. a compression box; 4. a spring; 5. a valve; 6. a flow inlet; 7. an outflow port; 8. a housing; 9. an inflation inlet; 10. a piston; 11. an air bag; 12. a drainage chamber; 13. a telescopic rod; 14. an expansion joint.

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. 1-3, the present invention provides a technical solution: a valve used for using under high pressure, including the valve 5, the bottom of inner wall of the valve 5 connects with the snubber assembly, the snubber assembly includes the body 8, the inside of the body 8 connects with the gasbag 11, form the drainage chamber 12 between gasbag 11 and body 8, connect the snubber assembly in the bottom of inner wall of the valve 5, in order to strengthen the compressive capacity of the valve 5, make the valve 5 itself absorb the pressure, reduce the emergence damaged situation because of the high pressure, when because the valve 5 is closed, the fluid that the valve 5 controls because the high pressure that can't stop the flow rapidly produced promotes the fluid to flow in the opposite directions, the valve 5 buffers the pressure increased suddenly by guiding the fluid controlled into the drainage chamber 12;

the bottom of an air bag 11 is connected with an inflation inlet 9, the bottom of a shell 8 is in contact with the outer wall of the inflation inlet 9, the top of the shell 8 is connected with a piston 10, nitrogen is inflated into the air bag 11 through the inflation inlet 9, the nitrogen is compressible gas, when a valve 5 is closed, fluid controlled by the valve 5 pushes the fluid to reversely flow due to high pressure generated by incapability of rapidly stopping flowing, the piston 10 is pushed away from the shell 8 to enter a drainage chamber 12 by the reverse movement of the fluid, the piston 10 is pushed into the drainage chamber 12, the fluid controlled by the valve 5 enters the drainage chamber 12, and the air bag 11 filled with the nitrogen is impacted and compressed to buffer and absorb suddenly increased pressure;

the top of the valve 5 is connected with a spring 4, the other end of the spring 4 is connected with a compression box 3, and the spring 4 is arranged at the top of the valve 5 so as to reset the valve 5 through the resilience of the spring 4 under the high-pressure condition, so that the problem that the valve 5 cannot be closed and opened due to high pressure is solved;

a driving device is fixed on one side of the valve 5, the driving device comprises a motor 1, a rope disc 2 is connected to an output shaft of the motor 1, one end of a wire rope of the rope disc 2 is in a matched structure with the outer wall of the valve 5, the motor 1 is started under normal pressure, the output shaft of the motor 1 drives the rope disc 2 to rotate, the rope disc 2 rotates to pull the valve 5 to ascend, but under the high-pressure condition, the power of the motor 1 cannot drive the valve 5 to ascend, but when the motor 1 runs, the pressure in the compression box 3 is reduced by the force for driving the valve 5 to ascend, pressure difference is formed at two ends of the valve 5, the valve 5 is pushed to ascend by the pressure difference, and the problem that the valve 5 cannot be controlled due to failure of the high-pressure motor 1 can be solved by starting the pressure difference, so that the;

the outer wall of the valve 5 is connected with a flow inlet 6, the bottom of the flow inlet 6 is fixedly connected with a flow outlet 7, when the valve 5 is started to ascend, the valve 5 controls the regulated fluid to start flowing from the flow inlet 6, and the fluid flows out through the flow outlet 7 after flowing to the flow outlet 7;

one side of piston 10 is connected with telescopic link 13, the other end fixed connection of telescopic link 13 is on the inner wall of influent stream mouth 6, be equipped with expansion joint 14 on telescopic link 13, piston 10 is stretched out through telescopic link 13 by high pressure promotion and is left the casing 8 and not be in uncontrollable state, still be connected on the inner wall of influent stream mouth 6, when near pressure of valve 5 obtains balanced, nitrogen expansion drives gasbag 11 and extends back original shape, and promote the motion of piston 10, telescopic link 13 retracts through expansion joint 14, it gets back to original position to drive piston 10.

The working principle is as follows: the bottom of the inner wall of the valve 5 is connected with a buffer device, in order to enhance the pressure resistance of the valve 5, so that the valve 5 can absorb pressure, and reduce the occurrence of the condition of damage caused by high pressure, when the valve 5 is closed, the fluid controlled by the valve 5 pushes the fluid to reversely flow because of the high pressure generated by the failure of the rapid flow stop, the valve 5 buffers the suddenly increased pressure by guiding the controlled fluid into the drainage chamber 12, the air bag 11 is filled with nitrogen through the inflation inlet 9, because the nitrogen is compressible gas, when the valve 5 is closed, the fluid controlled by the valve 5 pushes the fluid to reversely flow because of the high pressure generated by the failure of the rapid flow stop, the reverse movement of the fluid pushes the piston 10 away from the shell 8 and enters the drainage chamber 12, the piston 10 is pushed into the drainage chamber 12, the fluid controlled by the valve 5 enters the drainage chamber 12, and the air bag 11 filled with the nitrogen is compressed by impact to buffer and absorb the suddenly increased pressure, the spring 4 is arranged at the top of the valve 5 to reset the valve 5 through the resilience of the spring 4 under the high pressure condition, so that the problem that the valve 5 cannot be closed and opened due to high pressure is avoided, under normal pressure, the motor 1 is started, the output shaft of the motor 1 drives the rope disc 2 to rotate, the rope disc 2 rotates to pull the valve 5 to ascend, but under the high pressure condition, the power of the motor 1 cannot drive the valve 5 to ascend, but when the motor 1 runs, the pressure in the compression box 3 is reduced by the force for driving the valve 5 to ascend, pressure difference is formed at two ends of the valve 5, the valve 5 is pushed to ascend through the pressure difference, the problem that the valve 5 cannot be controlled due to the failure of the high-pressure motor 1 can be solved by starting the valve 5 through the pressure difference, so that the valve 5 can be normally used under the high pressure condition, when the valve 5 is started to ascend, the valve 5 controls regulated, after flowing to the outflow port 7, the gas flows out through the outflow port 7, the piston 10 is pushed by high pressure to extend out of the shell 8 through the telescopic rod 13, is not in an uncontrollable state, and is still connected to the inner wall of the inflow port 6, when the pressure near the valve 5 is balanced, the nitrogen expands to drive the airbag 11 to extend back to the original shape and push the piston 10 to move, and the telescopic rod 13 retracts through the telescopic joint 14 to drive the piston 10 to return to the original position.

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.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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. A valve for use at high pressure, comprising a valve (5), characterized in that: the inner wall bottom of valve (5) is connected with buffer, buffer contains casing (8), the internal connection of casing (8) has gasbag (11), drainage room (12) are formed to the centre of gasbag (11) and casing (8).

2. A valve for use at high pressure according to claim 1, wherein: the bottom of gasbag (11) is connected with inflation inlet (9), the bottom of casing (8) contacts with the outer wall of inflation inlet (9), the top of casing (8) is connected with piston (10).

3. A valve for use at high pressure according to claim 2, wherein: the top of the valve (5) is connected with a spring (4), and the other end of the spring (4) is connected with a compression box (3).

4. A valve for use at high pressure according to claim 3, wherein: one side of valve (5) is fixed with drive arrangement, drive arrangement contains motor (1), be connected with rope dish (2) on the output shaft of motor (1), the silk rope one end of rope dish (2) is the cooperation structure with the outer wall of valve (5).

5. A valve for use at high pressure according to claim 4, wherein: the outer wall of the valve (5) is connected with a flow inlet (6), and the bottom of the flow inlet (6) is fixedly connected with a flow outlet (7).

6. A valve for use at high pressure according to claim 5, wherein: one side of the piston (10) is connected with a telescopic rod (13), the other end of the telescopic rod (13) is fixedly connected to the inner wall of the inflow opening (6), and a telescopic joint (14) is arranged on the telescopic rod (13).