CN110966452A - Piston type pneumatic driving valve with hydraulic buffer - Google Patents
Piston type pneumatic driving valve with hydraulic buffer Download PDFInfo
- Publication number
- CN110966452A CN110966452A CN201811155095.9A CN201811155095A CN110966452A CN 110966452 A CN110966452 A CN 110966452A CN 201811155095 A CN201811155095 A CN 201811155095A CN 110966452 A CN110966452 A CN 110966452A
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- CN
- China
- Prior art keywords
- valve
- piston
- module
- hydraulic buffer
- piston type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/027—Check valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/20—Other details, e.g. assembly with regulating devices
- F15B15/22—Other details, e.g. assembly with regulating devices for accelerating or decelerating the stroke
Abstract
The invention specifically relates to a piston type pneumatic driving valve with a hydraulic buffer, which comprises a piston type pneumatic driving valve body and a preparation valve module, and is characterized in that: the hydraulic buffer module is also included; the hydraulic buffer module is connected in series between the piston type air pressure driving valve body and the preparation valve module and specifically comprises a cylinder body, a cylinder cover and a piston, wherein when the piston moves downwards, the one-way check valve is closed, the whole device achieves a buffering effect, the buffering speed is achieved by adjusting the throttling hole, when the piston moves upwards, the one-way check valve is opened, and at the moment, the whole device has no buffering effect. The valve preparation module can achieve a buffer function when moving downwards through the device, so that the collision degree of the valve during opening and closing is avoided or slowed down.
Description
Technical Field
The invention relates to the field of petroleum and natural gas pipeline equipment, in particular to a piston type air pressure driving valve with a hydraulic buffer.
Background
At present, the air pressure driving valve can be damaged or blocked by a flashboard when used on site, the service life is short, and the vibration noise is large.
Disclosure of Invention
The object of the present invention is to provide a piston-actuated valve with a hydraulic damper, by means of which a damping function is achieved in the downward movement, so that the degree of product impact is avoided or slowed down.
In order to achieve the above object, the present invention is realized by:
a piston type pneumatic driving valve with a hydraulic buffer comprises a piston type pneumatic driving valve body, a preparation valve module and a hydraulic buffer module, wherein the preparation valve module is arranged at the bottom of the piston type pneumatic driving valve body; the hydraulic buffer module is connected in series between the piston type air pressure driving valve body and the preparation valve module, and specifically comprises a cylinder body, a cylinder cover and a piston, wherein the piston is arranged in the cylinder body and can move up and down; when the piston moves downwards, the one-way check valve is closed, the whole device achieves the buffering effect, the buffering speed is achieved by adjusting the throttling hole, when the piston moves upwards, the one-way check valve is opened, and at the moment, the whole device has no buffering effect. The valve preparation module can achieve a buffer function when moving downwards through the device, so that the collision degree of the valve during opening and closing is avoided or slowed down.
The valve is characterized in that a hydraulic buffer is added between the valve part and the driver part, pressure is added through the upper part of the air pressure piston type driver, the air pressure piston type driver drives a piston in the hydraulic buffer to move downwards, and the piston on the hydraulic buffer is provided with a throttling hole and can bear larger resistance, so that the valve moves to reduce the vibration noise of the valve when the valve is opened; when the pressure at the upper part of the pneumatic piston type driver is released, the piston one-way check valve in the hydraulic buffer is opened, the resistance of the valve at the moment is small, the fluid pressure of the valve channel can be quickly cut off, and the function of a safety valve is realized.
Drawings
Fig. 1 is a cross-sectional view of the present device.
FIG. 2 is a schematic diagram of a hydraulic buffer module of the present apparatus.
Detailed Description
The invention is further illustrated by the following specific examples.
As shown in fig. 1 and fig. 2, the piston type pneumatic driving valve with a hydraulic buffer comprises a piston type pneumatic driving valve body 1, a preparation valve module 2 arranged at the bottom of the piston type pneumatic driving valve body 1, and a hydraulic buffer module 3; the hydraulic buffer module 3 is connected in series between the piston type pneumatic driving valve body 1 and the preparation valve module 2, the hydraulic buffer module 3 specifically comprises a cylinder 31, a cylinder cover 32 and a piston 33, the piston 33 is arranged in the cylinder 31 and can move up and down, the cylinder 31 is filled with oil 34, the end part of the cylinder 31 is provided with the cylinder cover 32, the piston 33 is respectively provided with a one-way check valve structure 35 and an orifice structure 36, and sealing rings 37 are arranged between the cylinder cover 32 and the cylinder 31 and between the cylinder 31 and the piston 33; when the piston 33 moves downwards, the one-way check valve 35 is closed, the whole device achieves a buffering effect, the buffering speed is achieved by adjusting the throttling hole, when the piston 33 moves upwards, the one-way check valve 35 is opened, and at the moment, the whole device has no buffering effect; the valve preparation module can achieve a buffer function when moving downwards through the device, so that the collision degree of the valve during opening and closing is avoided or slowed down.
The valve is characterized in that a hydraulic buffer is added between the valve part and the driver part, pressure is added through the upper part of the air pressure piston type driver, the air pressure piston type driver drives a piston in the hydraulic buffer to move downwards, and the piston on the hydraulic buffer is provided with a throttling hole and can bear larger resistance, so that the valve moves to reduce the vibration noise of the valve when the valve is opened; when the pressure at the upper part of the pneumatic piston type driver is released, the piston one-way check valve in the hydraulic buffer is opened, the resistance of the valve at the moment is small, the fluid pressure of the valve channel can be quickly cut off, and the function of a safety valve is realized.
Claims (1)
1. The utility model provides a take hydraulic buffer's piston atmospheric pressure to drive valve, its includes piston atmospheric pressure drive valve body and sets up the preparation valve module in piston atmospheric pressure drive valve body bottom, characterized by: the hydraulic buffer module is also included; the hydraulic buffer module is connected in series between the piston type air pressure driving valve body and the preparation valve module, and specifically comprises a cylinder body, a cylinder cover and a piston, wherein the piston is arranged in the cylinder body and can move up and down; when the piston moves upwards, the one-way check valve is opened, and the whole device has no buffer effect; the valve preparation module can achieve a buffer function when moving downwards through the device, so that the collision degree of the valve during opening and closing is avoided or slowed down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811155095.9A CN110966452A (en) | 2018-09-30 | 2018-09-30 | Piston type pneumatic driving valve with hydraulic buffer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811155095.9A CN110966452A (en) | 2018-09-30 | 2018-09-30 | Piston type pneumatic driving valve with hydraulic buffer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110966452A true CN110966452A (en) | 2020-04-07 |
Family
ID=70028559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811155095.9A Pending CN110966452A (en) | 2018-09-30 | 2018-09-30 | Piston type pneumatic driving valve with hydraulic buffer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110966452A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128289A (en) * | 2020-09-16 | 2020-12-25 | 西安航天远征流体控制股份有限公司 | Hydraulic shock absorber and pulse cleaning angle valve |
-
2018
- 2018-09-30 CN CN201811155095.9A patent/CN110966452A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112128289A (en) * | 2020-09-16 | 2020-12-25 | 西安航天远征流体控制股份有限公司 | Hydraulic shock absorber and pulse cleaning angle valve |
| CN112128289B (en) * | 2020-09-16 | 2022-04-19 | 西安航天远征流体控制股份有限公司 | Hydraulic shock absorber and pulse cleaning angle valve |
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