CN113915400A - High-pressure gate valve actuating mechanism - Google Patents
High-pressure gate valve actuating mechanism Download PDFInfo
- Publication number
- CN113915400A CN113915400A CN202111307762.2A CN202111307762A CN113915400A CN 113915400 A CN113915400 A CN 113915400A CN 202111307762 A CN202111307762 A CN 202111307762A CN 113915400 A CN113915400 A CN 113915400A
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- CN
- China
- Prior art keywords
- valve
- gate valve
- pressure gate
- pressure
- hydraulic cylinder
- 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
- F16K31/14—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves
- F16K31/143—Actuating devices; Operating means; Releasing devices actuated by fluid for mounting on, or in combination with, hand-actuated valves 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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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
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
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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
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a high-pressure gate valve actuating mechanism which comprises a hydraulic cylinder, an operating handle and an operating rotary valve, wherein a cylinder body of the hydraulic cylinder is fixed on a valve body of the high-pressure gate valve, and the lower end of a piston rod of the hydraulic cylinder is connected with a gate plate of the high-pressure gate valve; one end of the operating handle is rotationally connected with the valve body of the operating rotary valve; the operation rotary valve comprises a left valve and a right valve which are symmetrically arranged on two sides of an operation handle, valve rods of the left valve and the right valve are opposite to the operation handle, P ports of the left valve and the right valve are communicated with a high-pressure medium cavity in a valve body, a T port is communicated with the atmosphere, and working ports are respectively communicated with a lower cavity and an upper cavity of the hydraulic cylinder. The high-pressure gate valve is powered by a high-pressure medium in the pipeline, the flashboard of the high-pressure gate valve is driven by the hydraulic cylinder to move up and down, the high-pressure gate valve is opened and closed, the labor intensity of operators is reduced, the working efficiency is improved, the structure is simple, extra energy is not required to be consumed, and the high-pressure gate valve has the advantages of low manufacturing and using cost, reliability in working and the like.
Description
Technical Field
The invention relates to a hydraulic (auxiliary manual) actuating mechanism for opening and closing a high-pressure gate valve in a hydraulic pipeline, belonging to the technical field of valves.
Background
The gate valve is a common component for controlling the on-off of a pipeline, the opening and closing part of the gate valve is a gate plate, the moving direction of the gate plate is perpendicular to the flowing direction of a medium in the pipeline, and an actuating mechanism of the gate valve enables the gate valve to be fully opened or fully closed by changing the position of the gate plate. The existing gate valve generally adopts a manual actuating mechanism, when a high-pressure medium (such as high-pressure water) passes through a pipeline, the pressure between a sealing surface of a gate plate and a valve body is increased, the friction resistance is increased, great difficulty is caused to the opening and closing of the high-pressure gate valve, two persons and three persons are generally needed to carry out combined operation, the labor intensity of operators is increased, and the working efficiency is reduced.
Disclosure of Invention
The invention aims to provide a high-pressure gate valve actuating mechanism aiming at the defects of the prior art so as to reduce the labor intensity of operators and improve the working efficiency.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-pressure gate valve actuating mechanism comprises a hydraulic cylinder, an operating handle and an operating rotary valve, wherein a cylinder body of the hydraulic cylinder is fixed on a valve body of the high-pressure gate valve, and the lower end of a piston rod of the hydraulic cylinder is connected with a gate plate of the high-pressure gate valve; one end of the operating handle is rotationally connected with the valve body of the operating rotary valve; the operation rotary valve comprises a left valve and a right valve which are symmetrically arranged on two sides of an operation handle, valve rods of the left valve and the right valve are opposite to the operation handle, P ports of the left valve and the right valve are communicated with a high-pressure medium cavity in a valve body, a T port is communicated with the atmosphere, and working ports are respectively communicated with a lower cavity and an upper cavity of the hydraulic cylinder.
In the high-pressure gate valve actuating mechanism, the filtering devices are arranged between the P ports of the left valve and the right valve of the operating rotary valve and the high-pressure medium cavity in the valve body.
In the high-pressure gate valve actuating mechanism, the operating rotary valve and the filtering device are arranged on the side surface of the upper part of the valve body of the high-pressure gate valve.
According to the high-pressure gate valve actuating mechanism, the valve body of the high-pressure gate valve is provided with the water return port, and the T ports of the left valve and the right valve of the operation rotary valve are communicated with the atmosphere through the water return port.
The high-pressure gate valve actuating mechanism further comprises a liquid discharge pipe, one end of the liquid discharge pipe is connected with the water return port in the valve body, and the other end of the liquid discharge pipe is communicated with the liquid discharge groove.
The high-pressure gate valve actuating mechanism further comprises a manual actuating mechanism, and the manual actuating mechanism is installed on the upper portion of the hydraulic cylinder.
The high-pressure gate valve is powered by a high-pressure medium in the pipeline, the flashboard of the high-pressure gate valve is driven by the hydraulic cylinder to move up and down, the high-pressure gate valve is opened and closed, the labor intensity of operators is reduced, the working efficiency is improved, the structure is simple, extra energy is not required to be consumed, and the high-pressure gate valve has the advantages of low manufacturing and using cost, reliability in working and the like.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a hydraulic schematic diagram of a hydraulically controlled actuator.
The reference numbers in the figures are as follows: 1. the hydraulic manual switching device comprises a valve body, 2, a filtering device, 3, an operating rotary valve, 4, a water return port, 5, an operating handle, 6, a hydraulic cylinder, 7, a hand wheel, 8, a hydraulic manual switching mechanism, 9 and a switching handle.
Detailed Description
The invention provides a high-pressure gate valve actuating mechanism taking high-pressure medium in a pipeline as power.
Referring to fig. 1 and 2, the hydraulic control actuating mechanism comprises a hydraulic control actuating mechanism and a manual actuating mechanism, wherein the hydraulic control actuating mechanism mainly comprises a filtering device 2, an operating rotary valve 3, a water return port 4, an operating handle 5 and a hydraulic cylinder 6, wherein the operating rotary valve 3 comprises a left valve and a right valve, and the left valve and the right valve are respectively provided with a port P connected with a high-pressure liquid medium, a port T connected with a liquid return pipeline and a working port (port a); the manual actuating mechanism mainly comprises a hand wheel 7, a hydraulic manual switching mechanism 8 and a switching handle 9. When the valve body 1 normally works, a high-pressure medium (such as high-pressure water) is contained in a high-pressure medium cavity of the valve body 1, a filtering device 2 arranged on the valve body introduces the high-pressure medium through a pore channel and carries out filtering, the filtered medium enters a water inlet of an operation rotary valve 3 at the upper part of the valve body 1 through the pore channel, namely P openings of a left valve and a right valve, the operation rotary valve 3 is provided with a water return opening 4 communicated with the atmosphere besides two water holes (corresponding to working openings of the left valve and the right valve, namely an A opening) which are respectively communicated with an upper cavity and a lower cavity of a hydraulic cylinder 6, and an operation handle 5 of the operation rotary valve 3 can be pulled to the left position and the right position so as to control the liquid inlet and outlet of the hydraulic cylinder 6; the hydraulic cylinder 6 is arranged at the upper part of the valve body 1, a piston and a piston rod are arranged in the hydraulic cylinder 6, the lower end of the piston rod is connected with the gate plate, and the gate plate can be opened or closed when the piston drives the piston rod to move up and down, namely, hydraulic opening and closing of the gate valve are realized; the upper part of the hydraulic cylinder 6 is provided with a hand wheel 7 and a hydraulic and manual switching mechanism 8, a switching handle 9 is arranged on the hand wheel, and the switching between hydraulic and manual switching modes can be realized by pulling the switching handle 9 to hydraulic and manual positions.
Referring to fig. 2, when the gate valve needs to be opened hydraulically, the operating handle 5 in the middle position is pulled to the right, the operating handle 5 drives the valve element of the right valve in the operating rotary valve 3 to move to the right, the lower cavity of the hydraulic cylinder 6 is communicated with the high-pressure medium in the valve body 1, the high-pressure medium is filtered by the filtering device 2 and then enters the lower cavity of the hydraulic cylinder 6 through the right valve of the operating rotary valve 3, the medium in the upper cavity of the hydraulic cylinder 6 is discharged into a groove outside through the left valve of the operating rotary valve 3 and the water return port 4, the piston and the piston rod in the hydraulic cylinder 6 move upwards under the action of the high-pressure medium in the lower cavity, and simultaneously, the gate plate is driven to move upwards until the gate valve is completely opened, and then the operating handle 5 is pulled back to the middle position; when the gate valve needs to be closed hydraulically, the operating handle 5 is pulled to the left, the operating handle 5 drives the valve core of the left valve in the operating rotary valve 3 to move to the left, the upper cavity of the hydraulic cylinder 6 is communicated with a high-pressure medium in the valve body 1, the medium in the lower cavity of the hydraulic cylinder 6 is discharged into an outer groove through the right valve and the water return port 4 of the operating rotary valve 3, the piston and the piston rod drive the gate plate to move downwards under the action of the pressure medium in the upper cavity until the gate valve is completely closed, and the operating handle 5 is pulled back to the middle position after the gate plate moves downwards to the proper position.
An auxiliary device manual switch step:
when no high-pressure medium exists in the pipeline or the pressure of the medium is low, the high-pressure gate valve can be switched on and off by using the manual actuating mechanism, the conversion handle 9 is switched to a manual position from a normal hydraulic position, the hydraulic manual conversion mechanism 8 is in a manual mode, the hand wheel is rotated clockwise or anticlockwise, the hand wheel drives the screw rod part on the upper part of the piston rod to rotate clockwise or anticlockwise, the piston rod drives the piston and the flashboard to move downwards or upwards, the high-pressure gate valve can be closed or opened, and the conversion handle 9 is switched back to the hydraulic position after the manual switching of the gate valve is finished.
Claims (6)
1. A high-pressure gate valve actuating mechanism is characterized by comprising a hydraulic cylinder (6), an operating handle (5) and an operating rotary valve (3), wherein a cylinder body of the hydraulic cylinder (6) is fixed on a valve body (1) of the high-pressure gate valve, and the lower end of a piston rod of the hydraulic cylinder (6) is connected with a gate plate of the high-pressure gate valve; one end of the operating handle (5) is rotationally connected with the valve body (1) of the operating rotary valve (3); the operation rotary valve (3) comprises a left valve and a right valve which are symmetrically arranged on two sides of an operation handle (5), valve rods of the left valve and the right valve are opposite to the operation handle (5), P ports of the left valve and the right valve are communicated with a high-pressure medium cavity in the valve body (1), a T port is communicated with the atmosphere, and working ports are respectively communicated with a lower cavity and an upper cavity of the hydraulic cylinder (6).
2. A high-pressure gate valve actuator according to claim 1, characterized in that a filter device (2) is arranged between the ports P of the left and right valves of the operating rotary valve (3) and the high-pressure medium chamber in the valve body (1).
3. A high-pressure gate valve actuator according to claim 2, characterized in that the operating flap (3) and the filter device (2) are arranged on the upper side of the body (1) of the high-pressure gate valve.
4. A high-pressure gate valve actuator according to any one of claims 1-3, characterized in that a return port (4) is provided in the valve body (1) of the high-pressure gate valve, and the ports T of the left and right operating rotary valves (3) are connected to the atmosphere through the return port (4).
5. A high-pressure gate valve actuator according to claim 4, characterized by further comprising a drain pipe, wherein one end of the drain pipe is connected with the water return port (4) on the valve body (1), and the other end of the drain pipe is communicated with the drain groove.
6. A high-pressure gate valve actuator according to claim 5, characterized by further comprising a manual actuator mounted on the upper part of the hydraulic cylinder (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111307762.2A CN113915400A (en) | 2021-11-05 | 2021-11-05 | High-pressure gate valve actuating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111307762.2A CN113915400A (en) | 2021-11-05 | 2021-11-05 | High-pressure gate valve actuating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113915400A true CN113915400A (en) | 2022-01-11 |
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ID=79245353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111307762.2A Pending CN113915400A (en) | 2021-11-05 | 2021-11-05 | High-pressure gate valve actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113915400A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645966A (en) * | 2022-04-14 | 2022-06-21 | 中国船舶重工集团公司第七0七研究所九江分部 | Manual hydraulic switching device for hydraulic valve driving device |
-
2021
- 2021-11-05 CN CN202111307762.2A patent/CN113915400A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114645966A (en) * | 2022-04-14 | 2022-06-21 | 中国船舶重工集团公司第七0七研究所九江分部 | Manual hydraulic switching device for hydraulic valve driving device |
| CN114645966B (en) * | 2022-04-14 | 2023-09-12 | 中国船舶重工集团公司第七0七研究所九江分部 | Manual hydraulic switching device for hydraulic valve driving device |
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