CN105673896A - Swing check valve capable of automatically detecting valve clack position - Google Patents
Swing check valve capable of automatically detecting valve clack position Download PDFInfo
- Publication number
- CN105673896A CN105673896A CN201610209973.5A CN201610209973A CN105673896A CN 105673896 A CN105673896 A CN 105673896A CN 201610209973 A CN201610209973 A CN 201610209973A CN 105673896 A CN105673896 A CN 105673896A
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- CN
- China
- Prior art keywords
- valve
- magnet steel
- valve body
- cylindrical magnet
- axle hall
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- 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.)
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Classifications
-
- 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
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/03—Check valves with guided rigid valve members with a hinged closure member or with a pivoted closure member
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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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
- F16K37/0033—Electrical or magnetic means using a permanent magnet, e.g. in combination with a reed relays
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a swing check valve capable of automatically detecting the valve clack position. The swing check valve comprises a valve body, wherein a valve shaft is articulated in the valve body; a valve clack is connected with the valve shaft through a key to guarantee synchronous movement of the valve clack and the valve shaft; the upper end of the valve body is sealed by a valve cover; a counter bore is formed on one side of the shaft end of the valve shaft; cylindrical magnetic steel is mounted in the counter bore of the valve shaft, and the cylindrical magnetic steel and the counter bore are in interference fit to guarantee synchronous movement of the cylindrical magnetic steel and the valve clack; a printed circuit board is fixedly mounted on the valve body of the check valve; a two-axle Hall sensor is welded on the printed circuit board; a cushion block is arranged between the printed circuit board and the valve body to avoid direct contact between the two-axle Hall sensor and the valve body; the geometric center of the two-axle Hall sensor is superposed with the rotation center of the cylindrical magnetic steel; and the cylindrical magnetic steel is radial magnetizing magnetic steel. The swing check valve disclosed by the invention has the following beneficial effects: the movement position of the valve clack can be effectively detected without increasing any external leakage point design to the valve body.
Description
Art
The present invention relates to a kind of check-valves, particularly to the swing check valve that can automatically detect flap position.
Background technology
Swing check valve is installed in industrial pipeline, and when medium forward flows, when flap unlatching, medium counter flow, flap is closed, and can be used to the impact preventing pipeline water hammer to pump and motor. The closure member of swing check valve is the flap rotated around valve shaft.
When the foreign body in pipeline, such as bolt, welding slag etc., with when dropping on after media flow on the sealing surface of swing check valve, the flap of check-valves cannot be closed and be put in place, cannot forming reverse sealing, produce fault, fault mode is called foreign body fault mode, the duty of check-valves can be obtained, it is judged that whether it foreign body fault occurs by detecting the position of swing type flap. When prior art, after swing check valve is arranged on pipeline, it is difficult to the online physical location obtaining flap, only when swing check valve be furnished with weight, valve shaft stretch out valve body time, the position of flap just can be obtained from the position of external detection valve shaft, but not all swing check valve is furnished with weight, and if valve shaft is stretched out valve body, substantially increase a potential leakage point between valve body and valve shaft.
Summary of the invention
For overcoming existing check-valves cannot detect the drawbacks described above of flap position from inside, the swing check valve of the present invention can detect flap position automatically.
This invention address that its technical problem employed technical scheme comprise that a kind of swing check valve that can automatically detect flap position, including valve body (6), it is internal that valve shaft (2) is articulated with valve body (6), flap (1) and valve shaft (2) are connected with each other by key (3), guarantee that flap (1) and valve shaft (2) are synchronized with the movement, valve body upper end is sealed by valve gap (10)
Valve body (6) fixedly mounts printed circuit board (PCB) (8), printed circuit board (PCB) (8) is welded with two axle Hall elements (9), cushion block (7) is left, it is to avoid two axle Hall elements (9) directly contact with valve body (6) between printed circuit board (PCB) (8) and valve body (6);
Counterbore (4) is opened in valve shaft (2) axle head side, cylindrical magnet steel (5) is arranged in the counterbore (4) of valve shaft (2), between the two for interference fit to guarantee being synchronized with the movement of cylindrical magnet steel (5) and flap (1), cylindrical magnet steel (5) is radial magnetizing ring alnico;
The center of rotation of the geometric center of two axle Hall elements (9) and cylindrical magnet steel (5) overlaps;
The magnetic direction that two axle Hall element (9) detections are penetrated valve body (6) by cylindrical magnet steel (5) and come,
Owing to the geometric center of cylindrical magnet steel (5) center of rotation and two axle Hall elements (9) overlaps, make the rotating excitation field being parallel to two axle Hall element (9) surfaces that cylindrical magnet steel (5) produces, and two axle Hall element (9) internal comprise two parallel Wheatstone bridges, described rotating excitation field is made to produce Hall effect with described Wheatstone bridge, so that two axle Hall elements (9) produce two independent cosine output signals and sine output signal, one is cos(φ), another is sin(φ), simultaneously, two axle Hall elements (9) provide two-way simulation output Vx and Vy, and corresponding relation is: Vx=cos(φ), Vy=sin (φ),
According to formulaThe value of φ can be calculated,
During initial position, two axle Hall elements (9) export and cylindrical magnet steel (5) corresponding angle φ 1, and after cylindrical magnet steel (5) rotates, two axle Hall elements (9) export and now cylindrical magnet steel (5) corresponding angle φ 2,
According to formulaNamely the value of α is calculated,
α i.e. cylindrical magnet steel (5) relative to two axle Hall elements (9) rotate angle, the namely rotational angle of flap.
The invention has the beneficial effects as follows: when not increasing the design of any external leakage point for valve body, can effectively detecting the movement position of flap, and do not affect the original any performance of check-valves, method is simple, easy for installation, implement reliable.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of embodiment;
Fig. 2 is the structure chart of automatic detection part in the present embodiment.
In figure: 1. flap; 2. valve shaft; 3. key; 4. counterbore; 5. cylindrical magnet steel; 6. valve body; 7. cushion block; 8. printed circuit board (PCB); 9. two axle Hall element; 10 valve gaps.
Detailed description of the invention
As shown in Figure 1, 2, a kind of swing check valve that can automatically detect flap position, including valve body 6, it is internal that valve shaft 2 is articulated with valve body 6, and flap 1 and valve shaft 2 are connected with each other by key 3, it is ensured that flap 1 and valve shaft 2 are synchronized with the movement, valve body upper end is sealed by valve gap 11, it is characterised in that:
Valve body 6 fixedly mounts printed circuit board (PCB) 8, printed circuit board (PCB) 8 is welded with two axle Hall elements 9, between printed circuit board (PCB) 8 and valve body 6, leaves cushion block 7, it is to avoid two axle Hall elements 9 directly contact with valve body 6;
Open counterbore 4 in valve shaft 2 axle head side, cylindrical magnet steel 5 is arranged in the counterbore 4 of valve shaft 2, and between the two for interference fit to guarantee being synchronized with the movement of cylindrical magnet steel 5 and flap 1, cylindrical magnet steel 5 is radial magnetizing ring alnico;
The center of rotation of the geometric center of two axle Hall elements 9 and cylindrical magnet steel 5 overlaps;
Two axle Hall elements 9 detect the magnetic direction being penetrated valve body 6 by cylindrical magnet steel 5 and come,
Owing to the geometric center of cylindrical magnet steel 5 center of rotation and two axle Hall elements 9 overlaps, make the rotating excitation field being parallel to two axle Hall element 9 surfaces that cylindrical magnet steel 5 produces, and two axle Hall element 9 internal comprise two parallel Wheatstone bridges, described rotating excitation field is made to produce Hall effect with described Wheatstone bridge, so that two axle Hall elements 9 produce two independent cosine output signals and sine output signal, one is cos(φ), another is sin(φ), simultaneously, two axle Hall elements 9 provide two-way simulation output Vx and Vy, and corresponding relation is: Vx=cos(φ), Vy=sin (φ),
The value of φ can be calculated according to formula,
During initial position, two axle Hall elements 9 export and cylindrical magnet steel 5 corresponding angle φ 1, and after cylindrical magnet steel 5 rotates, two axle Hall elements 9 export and now cylindrical magnet steel 5 corresponding angle φ 2,
According to formulaNamely the value of α is calculated,
α i.e. cylindrical magnet steel 5 relative to two axle Hall elements 9 rotate angle, the namely rotational angle of flap.
Claims (1)
1. the swing check valve that can automatically detect flap position, including valve body (6), it is internal that valve shaft (2) is articulated with valve body (6), flap (1) and valve shaft (2) are connected with each other by key (3), guarantee that flap (1) and valve shaft (2) are synchronized with the movement, valve body upper end is sealed by valve gap (10), it is characterised in that:
Valve body (6) fixedly mounts printed circuit board (PCB) (8), printed circuit board (PCB) (8) is welded with two axle Hall elements (9), cushion block (7) is left, it is to avoid two axle Hall elements (9) directly contact with valve body (6) between printed circuit board (PCB) (8) and valve body (6);
Counterbore (4) is opened in valve shaft (2) axle head side, cylindrical magnet steel (5) is arranged in the counterbore (4) of valve shaft (2), between the two for interference fit to guarantee being synchronized with the movement of cylindrical magnet steel (5) and flap (1), cylindrical magnet steel (5) is radial magnetizing ring alnico;
The center of rotation of the geometric center of two axle Hall elements (9) and cylindrical magnet steel (5) overlaps;
The magnetic direction that two axle Hall element (9) detections are penetrated valve body (6) by cylindrical magnet steel (5) and come,
Owing to the geometric center of cylindrical magnet steel (5) center of rotation and two axle Hall elements (9) overlaps, make the rotating excitation field being parallel to two axle Hall element (9) surfaces that cylindrical magnet steel (5) produces, and two axle Hall element (9) internal comprise two parallel Wheatstone bridges, described rotating excitation field is made to produce Hall effect with described Wheatstone bridge, so that two axle Hall elements (9) produce two independent cosine output signals and sine output signal, one is cos(φ), another is sin(φ), simultaneously, two axle Hall elements (9) provide two-way simulation output Vx and Vy, and corresponding relation is: Vx=cos(φ), Vy=sin (φ),
According to formulaThe value of φ can be calculated,
During initial position, two axle Hall elements (9) export and cylindrical magnet steel (5) corresponding angle φ 1, and after cylindrical magnet steel (5) rotates, two axle Hall elements (9) export and now cylindrical magnet steel (5) corresponding angle φ 2,
According to formulaNamely the value of α is calculated,
α i.e. cylindrical magnet steel (5) relative to two axle Hall elements (9) rotate angle, the namely rotational angle of flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610209973.5A CN105673896A (en) | 2016-04-07 | 2016-04-07 | Swing check valve capable of automatically detecting valve clack position |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610209973.5A CN105673896A (en) | 2016-04-07 | 2016-04-07 | Swing check valve capable of automatically detecting valve clack position |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105673896A true CN105673896A (en) | 2016-06-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610209973.5A Pending CN105673896A (en) | 2016-04-07 | 2016-04-07 | Swing check valve capable of automatically detecting valve clack position |
Country Status (1)
| Country | Link |
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| CN (1) | CN105673896A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810684A (en) * | 2020-07-17 | 2020-10-23 | 哈电集团哈尔滨电站阀门有限公司 | Low flow resistance slow-closing check valve |
| CN111895172A (en) * | 2020-08-04 | 2020-11-06 | 中国石油天然气股份有限公司 | Open indicating device of swing check valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002027290A2 (en) * | 2000-09-29 | 2002-04-04 | Control & Measurement Systems Co., Ltd. | Non-contact type rotary positioning sensor |
| CN101183013A (en) * | 2006-11-16 | 2008-05-21 | 株式会社制御计测技术 | Non-contact rotary movement sensor provided with independent switch |
| CN202109882U (en) * | 2011-06-01 | 2012-01-11 | 西华大学 | Non-contact sensor |
| CN202280930U (en) * | 2011-11-02 | 2012-06-20 | 北京京仪海福尔自动化仪表有限公司 | Hall type valve position measuring device |
| CN104913088A (en) * | 2015-06-03 | 2015-09-16 | 南京年代科技有限公司 | Floating energy saving check valve |
| CN205504093U (en) * | 2016-04-07 | 2016-08-24 | 江苏神通阀门股份有限公司 | But swing check valve of automated inspection valve clack position |
-
2016
- 2016-04-07 CN CN201610209973.5A patent/CN105673896A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002027290A2 (en) * | 2000-09-29 | 2002-04-04 | Control & Measurement Systems Co., Ltd. | Non-contact type rotary positioning sensor |
| CN101183013A (en) * | 2006-11-16 | 2008-05-21 | 株式会社制御计测技术 | Non-contact rotary movement sensor provided with independent switch |
| CN202109882U (en) * | 2011-06-01 | 2012-01-11 | 西华大学 | Non-contact sensor |
| CN202280930U (en) * | 2011-11-02 | 2012-06-20 | 北京京仪海福尔自动化仪表有限公司 | Hall type valve position measuring device |
| CN104913088A (en) * | 2015-06-03 | 2015-09-16 | 南京年代科技有限公司 | Floating energy saving check valve |
| CN205504093U (en) * | 2016-04-07 | 2016-08-24 | 江苏神通阀门股份有限公司 | But swing check valve of automated inspection valve clack position |
Non-Patent Citations (1)
| Title |
|---|
| 赖宗声等: "《一种新型两维霍尔角度传感器研究》", 《传感技术学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111810684A (en) * | 2020-07-17 | 2020-10-23 | 哈电集团哈尔滨电站阀门有限公司 | Low flow resistance slow-closing check valve |
| CN111895172A (en) * | 2020-08-04 | 2020-11-06 | 中国石油天然气股份有限公司 | Open indicating device of swing check valve |
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Application publication date: 20160615 |