CN210566281U - Valve gate - Google Patents
Valve gate Download PDFInfo
- Publication number
- CN210566281U CN210566281U CN201921274978.1U CN201921274978U CN210566281U CN 210566281 U CN210566281 U CN 210566281U CN 201921274978 U CN201921274978 U CN 201921274978U CN 210566281 U CN210566281 U CN 210566281U
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- valve
- valve core
- spool
- core
- opening degree
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 230000008859 change Effects 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003518 caustics Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The valve comprises a valve body, a first valve core, a second valve core, an electric actuator and an adjusting knob, wherein the first valve core and the second valve core work in a matching mode to control the flow of the valve. The adjusting knob is connected with the second valve core, and the opening degree of the second valve core can be adjusted by operating the adjusting knob so as to determine the maximum flow of the valve. The electric actuator is controlled to adjust the opening of the first valve core, so that the flow can be automatically adjusted. Therefore, the utility model discloses the valve both can inject the maximum flow in the pipeline, can carry out automatic control to the flow again, and compact structure can improve work efficiency, optimal control effect.
Description
Technical Field
The utility model relates to the technical field of valves, concretely relates to valve.
Background
At present, in chemical industry, natural gas, heating pipeline and other industries at home and abroad, fluid flowing pipelines are provided with opening and closing devices such as valves and the like to control flow. In consideration of safety, flow balance and the like, an upper limit value needs to be set for the flow, and the flow needs to be adjusted in real time according to specific working condition changes so as to obtain the optimal working effect.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a valve, through setting up two spools, both can the control pipeline in the fluidic maximum flow, also can carry out automatically regulated to the flow.
The embodiment of the utility model provides a valve, including two spools, the valve includes:
the valve body is provided with a water inlet, a water outlet and a channel for communicating the water inlet and the water outlet;
a first spool disposed on a first side of the channel;
a second spool disposed on a second side of the channel;
an electric actuator connected to the first valve spool, the electric actuator configured to drive the first valve spool to adjust an opening of the first valve spool;
the adjusting knob is connected with the second valve core and used for adjusting the opening degree of the second valve core; and
a dial configured to indicate an opening degree of the second valve spool.
Preferably, the valve further comprises:
the controller is configured to control the electric actuator to drive the first valve core to move so as to change the opening degree of the first valve core.
Preferably, the controller comprises a PID controller.
Preferably, when the first valve core is in the first position and/or the second valve core is in the second position, the valve is in a fully-closed state.
Preferably, the valve body further comprises:
the first boss and the second boss are oppositely arranged in the channel and are used for forming a valve opening control channel matched with the first valve core and the second valve core;
when the first valve core is at a first position, the first valve core is contacted with the first boss and the second boss;
the second valve core is in contact with the first boss and the second boss when in the second position.
Preferably, the valve opening control channel is perpendicular to the water inlet.
Preferably, the second spool is configured to be separately withdrawable.
Preferably, the dial further comprises:
a pointer configured to display a flow value.
Preferably, the valve further comprises:
a locking screw configured to lock the second valve core to stabilize an opening degree of the second valve core.
Preferably, the valve further comprises:
a protective cover configured to prevent a user from mistakenly touching the valve to stabilize an opening degree of the valve.
The embodiment of the utility model provides a valve, including valve body, first case, second case, electric actuator and adjust knob, first case and second case cooperation work control flap's flow. The adjusting knob is connected with the second valve core, and the opening degree of the second valve core can be adjusted by operating the adjusting knob so as to determine the maximum flow of the valve. The electric actuator is controlled to adjust the opening of the first valve core, so that the flow can be automatically adjusted. Therefore, the utility model discloses the valve both can inject the maximum flow in the pipeline, can carry out automatic control to the flow again, and compact structure can improve work efficiency, optimal control effect.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:
fig. 1 is a schematic structural diagram of a valve according to an embodiment of the present invention;
fig. 2 is a schematic view illustrating a flow control principle of a valve according to an embodiment of the present invention;
description of reference numerals:
1-a valve body; 11-a water inlet; 12-a water outlet; 13-a channel; 14-a first boss; 15-a second boss; 2-a first valve core; 3-a second valve core; 4-an electric actuator; 5-adjusting knob; 6-dial scale; 7-a controller; 8-locking screws; 9-protective cover.
Detailed Description
The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth in detail. It will be apparent to those skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.
Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".
In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Fig. 1 is a schematic structural diagram of a valve according to an embodiment of the present invention, and fig. 2 is a schematic flow control principle diagram of a valve according to an embodiment of the present invention. As shown in fig. 1 and 2, the valve of the present embodiment includes a valve body 1, a first valve body 2, a second valve body 3, an electric actuator 4, an adjustment knob 5, a dial 6, and a controller 7. The valve body 1 comprises a water inlet 11, a water outlet 12 and a channel 13 communicating the water inlet 11 with the water outlet 12, the first valve core 2 and the second valve core 3 are respectively arranged at two sides of the channel 13, and when any one of the first valve core 2 or the second valve core 3 or both the first valve core 2 and the second valve core 3 are in a fully closed state, fluid in a pipeline cannot reach the water outlet 12 from the water inlet 11. The electric actuator 4 is connected with the first valve core 2, and the controller 7 is connected with the electric actuator 4 to control the electric actuator 4 to change the opening degree of the first valve core 2. The adjusting knob 5 is connected to the second valve body 3 through a valve stem for adjusting the opening degree of the second valve body 3, and a dial 6 is provided at the adjusting knob 5 for indicating the opening degree of the second valve body 3.
The first valve core 2 and the second valve core 3 can be plungers, gate plates, butterfly plates, spheres, etc., and the specific structural forms of the first valve core 2 and the second valve core 3 can be selected by those skilled in the art according to actual situations. The first spool 2 and the second spool 3 may have the same or different structures.
In this embodiment, the valve body 1 further includes a first protrusion 14 and a second protrusion 15, the first protrusion 14 and the second protrusion 15 are disposed in the channel 13 of the valve body 1, a valve opening degree control channel is formed between the first protrusion 14 and the second protrusion 15, and optionally, the first protrusion 14 and the second protrusion 15 are connected into a whole. Of course, the first boss 14 and the second boss 15 may not be connected to each other. Alternatively, the valve opening control passage is perpendicular to the water inlet 11, the first valve element 2 is disposed at one side of the valve opening control passage, and the second valve element 3 is disposed at the other side of the valve opening control passage. Preferably, the first valve spool 2 and the second valve spool 3 are both plungers. When the first valve core 2 is in the first position and/or the second valve core 3 is in the second position, the valve is in a fully closed state. When the first spool 2 is in the first position, the first spool 2 is in contact with the first and second bosses 14, 15, and when the second spool 3 is in the second position, the second spool 3 is in contact with the first and second bosses 14, 15.
In another alternative embodiment, the first valve element 2 and the second valve element 3 are arranged in the channel 13 in sequence from the water inlet 11 to the water outlet 12, and the first valve element 2 may be arranged at a position close to the water inlet 11 and the second valve element 3 may be arranged at a position close to the water outlet 12, or the second valve element 3 may be arranged at a position close to the water inlet 11 and the first valve element 2 may be arranged at a position close to the water outlet 12.
In another alternative embodiment, the first spool 2 and the second spool 3 may be disposed side by side in the same plane within the channel 13, with the valve in a fully closed state when both the first spool 2 and the second spool 3 are in a fully closed position.
Optionally, the valve body 1 comprises a matching extraction opening for the second valve spool 3, from which the second valve spool 3 can be extracted separately from the valve body. Preferably, the second valve core 3 is connected with the valve body 1 through threads on the extraction port, and a person skilled in the art can unscrew the second valve core 3 to be separated from the valve body 1 according to specific use requirements, and screwed into the extraction port on the valve body 1 through a threaded cock to block the extraction port of the second valve core 3 to prevent fluid leakage.
In this embodiment, the dial 6 includes a pointer that is connected to a flow meter for displaying the flow at the valve for the user to adjust the valve. The flowmeter is arranged in the valve or a pipeline connected with the valve, the flowmeter can be a positive displacement flowmeter, a differential pressure flowmeter and the like, and the type of the flowmeter can be selected by a person skilled in the art according to actual conditions.
In this embodiment, the valve further comprises a locking screw 8, and the locking screw 8 is arranged on the valve body 1 at a position corresponding to the second valve core 3. When the opening degree of the second valve core 3 is adjusted by a user, the user screws the locking screw 8 to enable the locking screw 8 to be in close contact with the valve rod between the second valve core 3 and the adjusting knob 5 so as to lock the position of the second valve core 3 and prevent the adjusting knob 5 from being touched by mistake to change the opening degree of the second valve core 3. The specific locking structure of the locking screw 8 and the valve rod can be designed by those skilled in the art according to practical situations, for example, a locking groove matched with the locking screw 8 is arranged on the valve rod, etc.
In this embodiment, the valve may further include a protection cover 9 to isolate the working assembly of the valve from the external environment, prevent external dust, corrosive substances and the like from damaging the components such as the controller 7 and the electric actuator 4, and avoid mistakenly touching the valve to change the working state of the valve.
When using the valve of the present embodiment, the user can control the opening degree of the second valve element 3 by operating the adjusting knob 5 to set the desired maximum flow rate of the valve outlet 12. The controller 7 can control the electric actuator 4 to drive the first valve core 2 to move according to the control conditions preset by the user and according to the requirements, so as to adjust the opening degree of the first valve core 2 according to the mode preset by the user, and automatically adjust the flow of the valve water outlet 12 within the set maximum flow range. Optionally, the controller 7 is a PID controller.
A PID controller (proportional-integral-derivative controller) is composed of a proportional unit P, an integral unit I, and a derivative unit D. PID controllers are primarily suitable for systems where the basic linearity and dynamics do not change over time. A PID controller is a feedback loop component that is common in industrial control applications. The controller compares the collected data to a reference value and then uses the difference to calculate a new input value that is intended to allow the data of the system to reach or remain at the reference value. Different from other simple control operations, the PID controller can adjust the input value according to historical data and the occurrence rate of differences, so that the system is more accurate and more stable.
In this embodiment, the second valve core 3 may also be manually adjusted or turned off by a user or a maintenance person when the first valve core 2, the electric actuator 4 or the controller 7 is out of order or needs to be repaired, so as to ensure the safety of the use and repair process.
The embodiment of the utility model provides a valve, including valve body, first case, second case, electric actuator and adjust knob, first case and second case cooperation work control flap's flow. The adjusting knob is connected with the second valve core, and the opening degree of the second valve core can be adjusted by operating the adjusting knob so as to determine the maximum flow of the valve. The electric actuator is controlled to adjust the opening of the first valve core, so that the flow can be automatically adjusted. Therefore, the utility model discloses the valve both can inject the maximum flow in the pipeline, can carry out automatic control to the flow again, and compact structure can improve work efficiency, optimal control effect.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A valve comprising two valve spools, the valve comprising:
the valve body (1) is provided with a water inlet (11), a water outlet (12) and a channel (13) for communicating the water inlet (11) and the water outlet (12);
a first spool (2) disposed on a first side of the channel (13);
a second spool (3) disposed on a second side of the passage (13);
an electric actuator (4) connected to the first valve element (2), the electric actuator (4) being configured to drive the first valve element (2) to adjust the opening of the first valve element (2);
the adjusting knob (5) is connected with the second valve core (3) and is used for adjusting the opening degree of the second valve core (3); and
a dial (6) configured to indicate an opening degree of the second spool (3).
2. The valve of claim 1, further comprising:
a controller (7) configured to control the electric actuator (4) to drive the first valve core (2) to move so as to change the opening degree of the first valve core (2).
3. Valve according to claim 2, wherein the controller (7) comprises a PID controller.
4. Valve according to claim 1, characterized in that the valve is in a fully closed state when the first spool (2) is in the first position and/or the second spool (3) is in the second position.
5. The valve according to claim 4, characterized in that the valve body (1) further comprises:
the first protruding portion (14) and the second protruding portion (15) are oppositely arranged in the channel (13) and are used for forming a valve opening control channel matched with the first valve core (2) and the second valve core (3);
wherein the first valve spool (2) contacts the first boss (14) and the second boss (15) when in the first position;
and when the second valve core (3) is at the second position, the second valve core is contacted with the first lug boss (14) and the second lug boss (15).
6. The valve according to claim 5, wherein the valve opening control channel is perpendicular to the water inlet (11).
7. Valve according to claim 1, characterized in that the second spool (3) is configured to be individually extractable.
8. Valve according to claim 1, characterized in that the dial (6) further comprises:
a pointer configured to display a flow value.
9. The valve of claim 1, further comprising:
a locking screw (8) configured to lock the second spool (3) to stabilize an opening degree of the second spool (3).
10. The valve of claim 1, further comprising:
a protective cover (9) configured to prevent a user from mistakenly touching the valve to stabilize the opening degree of the valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921274978.1U CN210566281U (en) | 2019-08-07 | 2019-08-07 | Valve gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921274978.1U CN210566281U (en) | 2019-08-07 | 2019-08-07 | Valve gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210566281U true CN210566281U (en) | 2020-05-19 |
Family
ID=70640248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921274978.1U Active CN210566281U (en) | 2019-08-07 | 2019-08-07 | Valve gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210566281U (en) |
-
2019
- 2019-08-07 CN CN201921274978.1U patent/CN210566281U/en active Active
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| GR01 | Patent grant |