CN216242614U - Opening detection mechanism and hydraulic control slow-closing butterfly valve emergency opening and closing device - Google Patents
Opening detection mechanism and hydraulic control slow-closing butterfly valve emergency opening and closing device Download PDFInfo
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- CN216242614U CN216242614U CN202121530633.5U CN202121530633U CN216242614U CN 216242614 U CN216242614 U CN 216242614U CN 202121530633 U CN202121530633 U CN 202121530633U CN 216242614 U CN216242614 U CN 216242614U
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Abstract
The utility model discloses an opening detection mechanism and a hydraulic control slow-closing butterfly valve emergency opening and closing device, wherein the opening detection mechanism comprises: the telescopic connection piece detects the piece. One end of the telescopic connecting piece can be connected to the outer side of the valve handle in a winding manner or connected with the telescopic end of the oil cylinder body; the detection end of the detection piece is connected with the other end of the telescopic connecting piece, which is opposite to the valve handle or the oil cylinder body, and the detection piece is used for detecting the telescopic length of the telescopic connecting piece. The valve opening and closing state is guaranteed to be the same as the preset valve opening and closing state, the water hammer phenomenon is avoided, and pressure balance and stable operation of a unit pipe network are guaranteed.
Description
Technical Field
The utility model relates to the technical field of hydraulic control, in particular to an opening detection mechanism and a hydraulic control slow-closing butterfly valve emergency opening and closing device.
Background
The butterfly valve is a high-pressure recovery valve, has strong circulation capacity and small medium pressure drop, is usually installed on a pipeline with a larger diameter, and compared with other types of valves with the same caliber, the butterfly valve needs an electric actuating device with much smaller capacity and can greatly save the installation cost, so the butterfly valve is widely applied to cooling water systems of tap water and important equipment of power plants.
The hydraulic control system is fast, the difficulty of slow closing time debugging is big because energy storage tank type liquid control slowly-closed butterfly valve when debugging closing time fixed value, after the debugging is stable, because the change of four seasons, factory building temperature change etc. cause the hydraulic oil viscosity change, lead to actually and predetermine the valve on-off state different, and then arouse the water hammer phenomenon, cause the problem that pressure oil is uneven, the operation is long and the unit pipe network operation is unstable.
SUMMERY OF THE UTILITY MODEL
Therefore, the technical problem to be solved by the utility model is that the actual opening and closing state of the preset valve is different due to the viscosity change of hydraulic oil caused by four-season change, plant temperature change and the like, so that the water hammer phenomenon is caused, and the problems of unbalanced pressure oil, long operation time and unstable unit pipe network operation are caused. To this end, the present invention provides an opening degree detection mechanism including:
one end of the telescopic connecting piece can be connected to the outer side of the valve handle in a winding manner or connected with the telescopic end of the oil cylinder body;
the detection end of the detection piece is opposite to the telescopic connecting piece, the valve handle or the other end of the oil cylinder body is connected, and the detection piece is used for detecting the telescopic length of the telescopic connecting piece.
Optionally, in the opening detection mechanism, the telescopic connecting piece has a connecting portion, and the connecting portion is fixedly connected to the valve handle.
Optionally, in the opening degree detection mechanism, the connection part is a connection ring, and the connection ring is hung on the valve handle; or
The connecting portion are connecting hooks, and the connecting hooks are hooked on the valve handle.
Optionally, in the opening degree detection mechanism, the detection element is a displacement sensor.
The utility model provides an emergent headstock gear of butterfly valve is slowly closed to hydraulic control, includes: the opening degree detection means.
Optionally, the hydraulic control slow-closing butterfly valve emergency opening and closing device further comprises an oil inlet and outlet mechanism, an oil cylinder mechanism and a control unit, wherein the opening detection mechanism is electrically connected with the control unit and is used for forming a feedback signal of the actual opening of the valve handle or the oil cylinder body; the control unit is used for controlling the communication between the oil cylinder mechanism and the oil inlet and outlet mechanism according to a feedback signal.
Optionally, the hydraulic control slow-closing butterfly valve emergency opening and closing device further comprises a pressure adjusting mechanism;
the pressure adjusting mechanism is arranged between the oil inlet and outlet mechanism and the oil cylinder mechanism and is provided with a control valve, the control valve is electrically connected with the control unit, and the control valve is used for controlling the circulation of media in the oil inlet and outlet mechanism and the oil cylinder mechanism.
Optionally, the hydraulic control slow-closing butterfly valve emergency opening and closing device further comprises a switch switching mechanism, wherein the switch switching mechanism comprises a first on-off assembly and a second on-off assembly, and the first on-off assembly is arranged between the oil cylinder mechanism and the oil inlet and outlet mechanism and is used for controlling direct communication between the oil cylinder mechanism and the oil inlet and outlet mechanism; the second on-off assembly is arranged between the pressure adjusting mechanism and the oil cylinder mechanism and used for controlling the on-off between the oil cylinder mechanism and the pressure adjusting mechanism;
the first on-off component and the second on-off component are switched to control the oil cylinder mechanism to be directly or indirectly communicated with the oil inlet and outlet mechanism.
The technical scheme provided by the utility model has the following advantages:
according to the opening detection mechanism provided by the utility model, the telescopic connecting piece is directly connected with a structure related to the actual opening of the indicating valve, the actual opening can be detected by measuring the extending length distance of the telescopic connecting piece, and the connecting piece is directly connected with the valve handle or directly connected with the piston rod of the oil cylinder body, so that the convenience in installation and use is further improved. And through setting up aperture detection mechanism, can realize the detection to actual valve aperture to through to actual aperture and the contrast of predetermineeing the aperture, and realize hydro-cylinder driven compensation drive according to contrast information, guarantee to predetermine the aperture the same with actual aperture, avoid appearing the water hammer phenomenon, avoid pressure oil unbalance, guarantee that the unit pipe network operation is stable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural view of an opening detection mechanism in a hydraulic control slow-closing butterfly valve emergency opening and closing device provided in an embodiment of the present invention;
FIG. 2 is a front view of the hydraulic control slow-closing butterfly valve emergency opening and closing device provided in the embodiment of the present invention;
FIG. 3 is a side view of a hydraulic control slow-closing butterfly valve emergency opening and closing device provided in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a pressure adjusting mechanism in the hydraulic control slow-closing butterfly valve emergency opening and closing device provided in the embodiment of the present invention;
FIG. 5 is a hydraulic schematic diagram of the hydraulic control slow-closing butterfly valve emergency opening and closing device provided in the embodiment of the present invention;
FIG. 6 is a hydraulic schematic diagram of a pressure adjustment mechanism in the hydraulic control slow-closing butterfly valve emergency opening and closing device according to the embodiment of the present invention;
description of reference numerals:
1-a pressure regulating mechanism; 111-a first one-way valve; 112-a second one-way valve; 121-a third one-way valve; 122-a fourth one-way valve; 131-a fifth one-way valve; 132-a sixth one-way valve; 141-a seventh one-way valve; 142-an eighth one-way valve; 15-integrating oil blocks; 16-a control valve;
2-an oil cylinder mechanism;
3-an oil inlet and outlet mechanism; 31-valve handle;
4-a control unit;
5-a switching mechanism; 51-a first on-off assembly; 511-a first solenoid valve; 512-a second solenoid valve; 52-a second disconnect assembly; 521-a third electromagnetic valve; 522-fourth solenoid valve;
61-a first filter assembly; 62-a second filter assembly; 63-a third filter assembly; 64-a fourth filter assembly;
7-an opening degree detection mechanism; 71-telescoping connection; 72-a detection member;
8-touch screen;
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Example 1
The present embodiment provides an opening degree detection mechanism 7, as shown in fig. 1 to 6, including: the valve handle comprises a telescopic connecting piece 71 and a detecting piece 72, wherein one end of the telescopic connecting piece 71 is connected to the outer side of the valve handle 31 in a winding mode or connected with the telescopic end of the oil cylinder body; the detection end of the detection piece 72 is connected with the other end of the telescopic connecting piece 71, which is opposite to the valve handle 31 or the oil cylinder body, and the detection piece 72 is used for detecting the telescopic length of the telescopic connecting piece 71.
In the opening detection mechanism 7 provided in this embodiment, the telescopic connection member 71 has a connection portion, and the connection portion is fixedly connected to the valve handle 31.
In this embodiment, the connection portion is a connection ring, and the connection ring is hung on the valve handle 31; in other optional embodiments, the connecting portion is a connecting hook hooked on the valve handle 31. Specifically, the detecting member 72 is a displacement sensor. For example, the opening degree detection mechanism 7 in the present embodiment may be a pull-wire type displacement sensor.
The aperture detection mechanism 7 that this embodiment provided, through the relevant structure lug connection of telescopic connection 71 and actual instruction valve aperture, through measuring the length distance that telescopic connection 71 stretches out, can realize the detection to actual aperture to through the connecting piece direct with 31 lug connection of department of valve handle or with the piston rod lug connection of hydro-cylinder body, further improve the convenience of installation and use. And through setting up aperture detection mechanism 7, can realize the detection to actual valve aperture to through to actual aperture and the contrast of predetermineeing the aperture, and realize hydro-cylinder driven compensation drive according to contrast information, guarantee to predetermine the aperture the same with actual aperture, avoid appearing the water hammer phenomenon, avoid pressure oil unbalance, guarantee that the unit pipe network operation is stable.
Example 2
The embodiment provides an emergency opening and closing device of a hydraulic control slow-closing butterfly valve, which comprises an opening detection mechanism 7 provided in the embodiment 1, and further comprises an oil inlet and outlet mechanism 3, an oil cylinder mechanism 2 and a control unit 4, wherein the opening detection mechanism 7 is electrically connected with the control unit 4, and the opening detection mechanism 7 is used for forming a feedback signal of the actual opening of the valve handle 31 or the oil cylinder body; the control unit 4 is used for controlling the communication between the oil cylinder mechanism 2 and the oil inlet and outlet mechanism 3 according to a feedback signal. The emergent headstock gear of butterfly valve is slowly closed in pilot operated that this embodiment provided still includes touch-control screen 8 that sets up on the bed frame, realizes carrying out initial setting to pump station hydraulic system through touch-control screen 8 and the installed part of setting on the bed frame.
The hydraulic control slow-closing butterfly valve emergency opening and closing device provided by the embodiment further comprises a pressure adjusting mechanism 1; the pressure adjusting mechanism 1 is arranged between the oil inlet and outlet mechanism 3 and the oil cylinder mechanism 2, the pressure adjusting mechanism 1 is provided with a control valve 16, the control valve 16 is electrically connected with the control unit 4, and the control valve 16 is used for controlling the circulation of media in the oil inlet and outlet mechanism 3 and the oil cylinder mechanism 2.
The pressure adjustment mechanism 1 provided in the present embodiment further includes an integrated structure. The integrated structure comprises a first passage component and a second passage component, wherein one end of the first passage component is communicated with the first end of the oil cylinder mechanism 2; one end of the second passage component is communicated with a second end of the oil cylinder mechanism 2 opposite to the first end; the control valve 16 is communicated with the oil inlet and outlet mechanism 3; the control valve 16 has a first state that the oil inlet end of the oil inlet and outlet mechanism 3 is controlled to be communicated with the first passage component and the oil outlet end of the oil inlet and outlet mechanism 3 is controlled to be communicated with the second passage component according to a feedback signal of the control unit 4; the oil inlet end is controlled to be communicated with the second loop, and the oil outlet end is controlled to be communicated with the first channel assembly in a second state; the control valve 16 is switched between the first state and the second state to adjust the oil pressure in the cylinder mechanism 2.
In the pressure adjustment mechanism 1 provided in the present embodiment, the first passage assembly includes a first flow passage and a second flow passage, and the first flow passage and the second flow passage have opposite directions of medium flowing therethrough; the second passage component comprises a third flow passage and a fourth flow passage, and the third flow passage and the fourth flow passage can be used for allowing media in the third flow passage and the fourth flow passage to flow in opposite directions.
The pressure adjusting mechanism 1 provided by the embodiment comprises an integrated oil block 15, wherein a plurality of circulation channels are arranged in the integrated oil block 15; the first circulation path includes a first check valve 111 and a second check valve 112 installed on the integral oil block 15, and the second circulation path includes a third check valve 121 and a fourth check valve 122 installed on the integral oil block 15; the third flow path includes a fifth check valve 131 and a sixth check valve 132 mounted on the integral oil block 15; the fourth flow path includes a seventh check valve 141 and an eighth check valve 142 mounted on the integral oil block 15; in the first state, the first check valve 111 and the second check valve 112 are open, the third check valve 121 and the fourth check valve 122 are closed, the fifth check valve 131 and the sixth check valve 132 are open, and the seventh check valve 141 and the eighth check valve 142 are closed; in the second state, the third check valve 121 and the fourth check valve 122 are opened, the first check valve 111 and the second check valve 112 are closed, the seventh check valve 141 and the eighth check valve 142 are opened, and the fifth check valve 131 and the sixth check valve 132 are closed.
The pressure adjustment mechanism 1 provided in this embodiment further includes a filtering mechanism, which includes: a first filter assembly 61 and a second filter assembly 62. Wherein, a first filter assembly 61 is installed on the integrated oil block 15, and the first filter assembly 61 is arranged on the first channel assembly and is used for filtering the medium circulating in the first channel assembly; a second filter assembly 62 is mounted to the integral oil block 15, the second filter assembly 62 being disposed on the second passage assembly for filtering media circulating within the second passage assembly.
In the pressure adjustment mechanism 1 provided in this embodiment, the filter mechanism further includes a third filter assembly 63, and the third filter assembly 63 is mounted on the integrated oil block 15 and disposed between the oil inlet end of the oil inlet and outlet mechanism 3 and the control valve 16.
In the pressure adjustment mechanism 1 provided in this embodiment, the control valve 16 further includes an unloading circuit for blocking the communication between the first passage assembly and the second passage assembly and the oil inlet and outlet mechanism 3.
In the pressure regulating mechanism 1 provided in this embodiment, the control valve 16 is used for controlling the actual flow directions of the first flow passage assembly and the second flow passage assembly, so as to indirectly regulate the oil pressure, and thus the actual flow direction is matched with the preset flow direction, for example, if the actual opening is too fast compared with the preset position, the pressure regulating device is in the first state, it is ensured that the oil inlet end is communicated with the first end through the first passage assembly, and correspondingly, the second end is communicated with the oil outlet end through the second passage assembly; correspondingly, if the actual opening is too slow compared with the opening at the preset position, the opposite operation can be performed, so that the circulation adjustment of an oil way is realized, the actual opening and closing state of the valve is ensured to be the same as the opening and closing state of the preset valve, the water hammer phenomenon is avoided, the imbalance of pressure oil is avoided, and the stable operation of a unit pipe network is ensured. In addition, through the setting of integrated oil piece 15, realized overall structure miniaturization, be favorable to the installation convenience, each module is like all can the direct mount on integrated oil piece 15 of filter mechanism and check valve, and then realizes that the function is integrated.
The emergent headstock gear of butterfly valve is slowly closed in pilot-operated that this embodiment provided, filtering mechanism include fourth filtering component 64, fourth filtering component 64 sets up in business turn over oil mechanism 3 for guarantee the purity of the oil feed in business turn over oil mechanism 3.
The emergency opening and closing device for the hydraulic control slow-closing butterfly valve further comprises a switch switching mechanism 5, wherein the switch switching mechanism 5 comprises a first on-off component 51 and a second on-off component 52, and the first on-off component 51 is arranged between the oil cylinder mechanism 2 and the oil inlet and outlet mechanism 3 and is used for controlling direct communication between the oil cylinder mechanism 2 and the oil inlet and outlet mechanism 3; the second on-off component 52 is arranged between the pressure adjusting mechanism 1 and the oil cylinder mechanism 2 and is used for controlling on-off between the oil cylinder mechanism 2 and the pressure adjusting mechanism 1; the first on-off component 51 and the second on-off component 52 are switched to control the direct communication or the indirect communication between the oil cylinder mechanism 2 and the oil inlet and outlet mechanism 3. It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.
Claims (8)
1. An opening degree detection mechanism is characterized by comprising
One end of the telescopic connecting piece (71) is connected to the outer side of the valve handle (31) in a winding manner or connected with the telescopic end of the oil cylinder body;
the detection end of the detection piece (72) is opposite to the telescopic connecting piece (71) and is connected with the other end of the valve handle (31) or the oil cylinder body, and the detection piece (72) is used for detecting the telescopic length of the telescopic connecting piece (71).
2. The opening degree detection mechanism according to claim 1,
the telescopic connecting piece (71) is provided with a connecting part, and the connecting part is fixedly connected with the valve handle (31).
3. The opening degree detection mechanism according to claim 2,
the connecting part is a connecting ring, and the connecting ring is hung on the valve handle (31); or
The connecting portion are connecting hooks, and the connecting hooks are hooked on the valve handle (31).
4. The opening degree detection mechanism according to claim 1, wherein the detection member (72) is a displacement sensor.
5. The utility model provides an emergent headstock gear of butterfly valve is slowly closed to hydraulic control, its characterized in that includes: the opening degree detection mechanism according to any one of claims 1 to 4.
6. The emergency opening and closing device of a hydraulic control slow-closing butterfly valve according to claim 5, further comprising an oil inlet and outlet mechanism (3), an oil cylinder mechanism (2) and a control unit (4), wherein the opening detection mechanism is electrically connected with the control unit (4), and is used for forming a feedback signal of the actual opening of the valve handle (31) or the oil cylinder body; the control unit (4) is used for controlling the communication between the oil cylinder mechanism (2) and the oil inlet and outlet mechanism (3) according to a feedback signal.
7. The emergency opening and closing device of a hydraulic control slow-closing butterfly valve according to claim 6, further comprising a pressure regulating mechanism (1);
the pressure adjusting mechanism (1) is arranged between the oil inlet and outlet mechanism (3) and the oil cylinder mechanism (2), the pressure adjusting mechanism (1) is provided with a control valve (16), the control valve (16) is electrically connected with the control unit (4), and the control valve (16) is used for controlling the circulation of media in the oil inlet and outlet mechanism (3) and the oil cylinder mechanism (2).
8. The emergency opening and closing device of a pilot-controlled slow-closing butterfly valve according to claim 7,
the oil cylinder mechanism (2) is arranged between the oil inlet and outlet mechanism (3), and the oil cylinder mechanism (2) is directly communicated with the oil inlet and outlet mechanism (3) under the control of the first on-off assembly (51); the second on-off component (52) is arranged between the pressure adjusting mechanism (1) and the oil cylinder mechanism (2) and is used for controlling on-off between the oil cylinder mechanism (2) and the pressure adjusting mechanism (1);
the first on-off component (51) and the second on-off component (52) are switched to control the oil cylinder mechanism (2) to be directly or indirectly communicated with the oil inlet and outlet mechanism (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530633.5U CN216242614U (en) | 2021-07-06 | 2021-07-06 | Opening detection mechanism and hydraulic control slow-closing butterfly valve emergency opening and closing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121530633.5U CN216242614U (en) | 2021-07-06 | 2021-07-06 | Opening detection mechanism and hydraulic control slow-closing butterfly valve emergency opening and closing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216242614U true CN216242614U (en) | 2022-04-08 |
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ID=80979207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121530633.5U Active CN216242614U (en) | 2021-07-06 | 2021-07-06 | Opening detection mechanism and hydraulic control slow-closing butterfly valve emergency opening and closing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216242614U (en) |
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2021
- 2021-07-06 CN CN202121530633.5U patent/CN216242614U/en active Active
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