CN211651910U - Gate valve opening and closing thrust continuous testing device - Google Patents
Gate valve opening and closing thrust continuous testing device Download PDFInfo
- Publication number
- CN211651910U CN211651910U CN202020364221.8U CN202020364221U CN211651910U CN 211651910 U CN211651910 U CN 211651910U CN 202020364221 U CN202020364221 U CN 202020364221U CN 211651910 U CN211651910 U CN 211651910U
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- hydraulic cylinder
- gate valve
- control system
- oil supply
- displacement sensor
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Abstract
The utility model discloses a continuous testing device for the opening and closing thrust of a gate valve, which comprises a hydraulic station and a connecting bracket; the top of the connecting support is provided with a hydraulic cylinder, a piston rod of the hydraulic cylinder extends downwards into the connecting support, the bottom end of the piston rod is provided with a connecting block, the connecting support is provided with a displacement sensor, and the displacement sensor is used for measuring the stroke of the hydraulic cylinder; the hydraulic station comprises an oil supply system and a control system, wherein the oil supply system is used for driving the hydraulic cylinder to move, the control system controls the oil supply system to work, the control system is electrically connected with a displacement sensor, the control system comprises an electronic clock and a pressure sensor, and the pressure sensor is used for measuring the pressure of the hydraulic cylinder. The utility model discloses thrust value when can the direct measurement gate valve open and close, the thrust curve is more accurate, convenient optimal design scheme.
Description
Technical Field
The utility model relates to a valve experimental apparatus field especially relates to a thrust continuous testing arrangement is opened and close to gate valve.
Background
The gate valve is usually used as a stop valve in a large-caliber pipeline, the opening and closing piece of the gate valve is a gate plate, the moving direction of the gate plate is perpendicular to the fluid direction, when the gate valve is closed, a sealing surface can be sealed only by medium pressure, namely, the sealing surface of the gate plate is pressed to a valve seat on the other side by the medium pressure to ensure the sealing of the sealing surface, and self sealing is formed.
In production, the opening and closing thrust of the gate valve is usually required to be measured, the gate valve is large in size, the opening and closing thrust of the gate valve in the prior art is usually a thrust value converted from torque under the test of an electric actuator, the thrust value error calculated through torque value conversion is large, meanwhile, the change of the thrust and displacement along with the action of the valve cannot be visually displayed, and the feedback significance to the valve design is small.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a thrust continuous testing arrangement is opened and close to gate valve, the thrust value when can the direct measurement gate valve open and close, the thrust curve is more accurate, convenient optimal design scheme.
In order to achieve the purpose, the utility model adopts the following technical proposal to realize:
the utility model discloses a continuous testing device for the opening and closing thrust of a gate valve, which comprises a hydraulic station and a connecting bracket;
the top of the connecting support is provided with a hydraulic cylinder, a piston rod of the hydraulic cylinder extends downwards into the connecting support, the bottom end of the piston rod is provided with a connecting block, the connecting support is provided with a displacement sensor, and the displacement sensor is used for measuring the stroke of the hydraulic cylinder;
the hydraulic station comprises an oil supply system and a control system, wherein the oil supply system is used for driving the hydraulic cylinder to move, the control system controls the oil supply system to work, the control system is electrically connected with a displacement sensor, the control system comprises an electronic clock and a pressure sensor, and the pressure sensor is used for measuring the pressure of the hydraulic cylinder.
Preferably, the hydraulic cylinder is a bidirectional hydraulic cylinder.
Preferably, the hydraulic station further comprises a display screen, and the hydraulic station has a data imaging function.
Preferably, the device further comprises a working condition simulation device.
The utility model also discloses an application method of above-mentioned testing arrangement, including following step:
s100, mounting a gate valve to be tested on a fixed tool or a working condition simulation device;
s200, completely closing or opening a gate valve to be tested;
s300, connecting a piston rod and a valve rod by using a connecting block;
and S400, driving the valve to act by using the hydraulic cylinder, and outputting experimental data.
Preferably, step S400 includes the steps of,
s410, controlling the pressure of the hydraulic cylinder to slowly increase,
s420, when the thrust of the hydraulic cylinder reaches the opening or closing thrust of the gate valve to be tested, the valve clack of the gate valve to be tested starts to move,
s430, dynamically adjusting the pressure of a hydraulic cylinder by a hydraulic station, keeping the moving speed of the valve clack of the gate valve to be tested constant,
and S440, outputting the visualized experimental data.
Preferably, the experimental data includes hydraulic cylinder pressure, flap displacement, time.
Preferably, step S300 includes the steps of,
s310, detaching a driving device of the gate valve to be tested, wherein the driving device comprises a hand wheel and an electric head,
s320, mounting the connecting bracket on a valve body of the gate valve to be tested,
s330, fixedly connecting the connecting block to the top end of the valve rod of the gate valve to be tested.
Preferably, in step S330, the connection means of the connection block and the valve rod includes a screw fit and a snap fit.
The utility model has the advantages that:
1. the utility model can directly measure the thrust value when the gate valve is opened and closed, and the directly measured thrust value is more accurate than the thrust value converted by torque;
2. the utility model has more accurate thrust curve through data visual output;
3. the utility model discloses an output result can feed back design input, better optimal design scheme and parameter, reduction in production cost.
Drawings
Fig. 1 is a schematic view of the present invention.
In the figure: 1-hydraulic station, 2-hydraulic cylinder, 3-connecting bracket, 4-connecting block and 5-gate valve to be tested.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the utility model comprises a hydraulic station 1 and a connecting bracket 3;
the top of the connecting support 3 is provided with a hydraulic cylinder 2, the hydraulic cylinder 2 is a bidirectional hydraulic cylinder, a piston rod of the hydraulic cylinder 2 extends downwards into the connecting support 3, the bottom end of the piston rod is provided with a connecting block 4, the connecting support 3 is provided with a displacement sensor, and the displacement sensor is used for measuring the stroke of the hydraulic cylinder 2;
the hydraulic station 1 comprises an oil supply system, a control system and a display screen, wherein the oil supply system is used for driving the hydraulic cylinder 2 to move, the control system controls the oil supply system to work, the control system is electrically connected with a displacement sensor and comprises an electronic clock and a pressure sensor, the pressure sensor is used for measuring the pressure of the hydraulic cylinder 2, and the hydraulic station 1 has a data imaging function.
Still include operating mode analogue means, the detection ring border needs that can further satisfy the gate valve 5 that awaits measuring, for example:
the publication number is CN110411735A named as 'a low-temperature valve simulation working condition test device';
the publication number is CN107643150A, entitled "simulate valve true operating mode leak testing frock".
Displacement sensors are part of the common prior art, for example, in the publication CN207093496U entitled "a hydraulic cylinder with stroke detection" stroke measurement.
For the gate valve 5 to be tested, the gate valve is usually opened by a hand wheel, an electric head and other driving devices, if the top end of the valve rod of the gate valve 5 to be tested is in a threaded structure, the connecting block 4 is arranged to be in threaded connection with the valve rod, the connecting block 4 can be in running fit with the piston rod, the connecting block 4 and the piston rod are kept in a connection state in the axial direction,
for other valve stems, the connecting block 4 may be in the shape of a claw with a gripping function, such as a puller or the like, and can keep applying a pulling force to the valve stem in the vertical direction.
When in actual use, the method comprises the following steps:
s100, installing the gate valve 5 to be tested on a fixed tool or a working condition simulation device;
s200, completely closing or opening the gate valve 5 to be tested;
s300, connecting the piston rod and the valve rod by using the connecting block 4, and comprising the following steps:
s310, detaching a driving device of the gate valve 5 to be tested, wherein the driving device comprises a hand wheel and an electric head,
s320, mounting the connecting bracket 3 on the valve body of the gate valve 5 to be tested,
s330, fixedly connecting the connecting block 4 to the top end of the valve rod of the gate valve 5 to be tested;
s400, driving a valve to act by using the hydraulic cylinder 2, and outputting experimental data, wherein the experimental data comprise 2 pressure of the hydraulic cylinder, valve clack displacement and time, and a pressure-time curve and a displacement-time curve are formed after visual processing:
s410, controlling the pressure of the hydraulic cylinder 2 to be slowly increased,
s420, when the thrust of the hydraulic cylinder 2 reaches the opening or closing thrust of the gate valve 5 to be tested, the valve clack of the gate valve 5 to be tested starts to move,
s430, dynamically adjusting the pressure of the hydraulic cylinder 2 by the hydraulic station 1, keeping the valve clack moving speed of the gate valve 5 to be tested constant,
and S440, outputting the visualized experimental data.
Wherein, the cooperation mode of connecting block 4 and valve rod includes screw-thread fit, block cooperation.
Of course, the present invention may have other embodiments, and those skilled in the art may make various corresponding changes and modifications according to the present invention without departing from the spirit and the essence of the present invention, and these corresponding changes and modifications should fall within the protection scope of the appended claims.
Claims (4)
1. The utility model provides a gate valve opens and close thrust continuous testing arrangement which characterized in that: comprises a hydraulic station (1) and a connecting bracket (3);
the top of the connecting support (3) is provided with a hydraulic cylinder (2), a piston rod of the hydraulic cylinder (2) extends downwards into the connecting support (3), the bottom end of the piston rod is provided with a connecting block (4), the connecting support (3) is provided with a displacement sensor, and the displacement sensor is used for measuring the stroke of the hydraulic cylinder (2);
the hydraulic station (1) comprises an oil supply system and a control system, the oil supply system is used for driving the hydraulic cylinder (2) to move, the control system controls the oil supply system to work, the control system is electrically connected with a displacement sensor, the control system comprises an electronic clock and a pressure sensor, and the pressure sensor is used for measuring the pressure of the hydraulic cylinder (2).
2. The test device of claim 1, wherein: the hydraulic cylinder (2) is a bidirectional hydraulic cylinder.
3. The test device of claim 2, wherein: the hydraulic station (1) also comprises a display screen, and the hydraulic station (1) has a data imaging function.
4. The test device of claim 3, wherein: the device also comprises a working condition simulation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020364221.8U CN211651910U (en) | 2020-03-20 | 2020-03-20 | Gate valve opening and closing thrust continuous testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020364221.8U CN211651910U (en) | 2020-03-20 | 2020-03-20 | Gate valve opening and closing thrust continuous testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211651910U true CN211651910U (en) | 2020-10-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020364221.8U Active CN211651910U (en) | 2020-03-20 | 2020-03-20 | Gate valve opening and closing thrust continuous testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211651910U (en) |
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2020
- 2020-03-20 CN CN202020364221.8U patent/CN211651910U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 611330 No. 6, Guanghua Road, Jinyuan Town, Dayi County, Chengdu, Sichuan Patentee after: CHENGDU CHENGFENG VALVE Co.,Ltd. Patentee after: Chengdu Chenggao Valve Co.,Ltd. Patentee after: Chengfeng FLOW-TECH Group Address before: 6 Guanghua Road, Jinyuan Town, Dayi County, Chengdu, Sichuan 610000 Patentee before: CHENGDU CHENGFENG VALVE Co.,Ltd. Patentee before: CHENGDU CHENG GAO VALVE Co.,Ltd. Patentee before: CHENGDU CHENGFENG FLOW-TECH GROUP Co.,Ltd. |
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| CP03 | Change of name, title or address |