CN110630806A - Electromagnetic valve with monitorable state - Google Patents
Electromagnetic valve with monitorable state Download PDFInfo
- Publication number
- CN110630806A CN110630806A CN201910999853.3A CN201910999853A CN110630806A CN 110630806 A CN110630806 A CN 110630806A CN 201910999853 A CN201910999853 A CN 201910999853A CN 110630806 A CN110630806 A CN 110630806A
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- Prior art keywords
- working condition
- electromagnetic valve
- iron core
- sensor
- processing module
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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
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
- F16K31/0655—Lift 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
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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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
- F16K37/0075—For recording or indicating the functioning of a valve in combination with test equipment
- F16K37/0083—For recording or indicating the functioning of a valve in combination with test equipment by measuring valve parameters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a state-monitorable electromagnetic valve which comprises an electromagnetic valve body, wherein an upper cavity is fixedly arranged above the electromagnetic valve body, a static iron core is arranged in the center of the upper cavity, an electromagnet coil taking the center of the upper cavity as an axis is wound on the static iron core, the bottom of the static iron core is fixedly connected with one end of a reset spring, the other end of the reset spring extends into a round hole in the top of a movable iron core, the bottom of the movable iron core is fixedly connected with a sealing element, the sealing element is used for sealing a valve port of a water outlet cavity of the electromagnetic valve body, two working condition monitoring sensors symmetrically arranged relative to the reset spring are further arranged at the bottom of the static iron core, and the working condition monitoring sensors. According to the invention, the signal processing module is used for receiving and processing the pressure signal of the working condition monitoring sensor at the bottom of the static iron core, so that the real-time working condition of the electromagnetic valve is accurately judged, the problem that the working state of the traditional electromagnetic valve cannot be monitored is effectively solved, and a reliable basis is provided for daily use and maintenance.
Description
Technical Field
The invention belongs to the technical field of electromagnetic valves, and particularly relates to an electromagnetic valve with a monitorable state.
Background
With the rapid increase of the world economy and population, the consumption speed of fresh water resources is also increasing tremendously, and how to save water and realize the efficient utilization of the fresh water resources becomes a difficult problem which people have to solve. From the view of automation of agricultural production (pipeline water delivery control), waste water in the water delivery process is reduced, accurate water delivery control is carried out, and the finding of control equipment with low price and reliable control is very important.
The electromagnetic valve is an automatic basic element for controlling the opening and closing of a fluid passage by utilizing electromagnetism, and has other functions of adjusting the flowing direction and the flow rate of a medium and the like. The electromagnetic valve has been widely used in each control link of pipeline water delivery due to its advantages of small volume, fast switching speed, simple wiring, low power consumption, high cost performance, economy and practicality.
The traditional electromagnetic valve has a single structure, can only realize two actions of switching on and switching off a fluid passage, and in daily use, an iron core is blocked frequently, so that the problem that the electromagnetic valve cannot be normally opened after being electrified is solved, and great inconvenience is brought to accurate control and stable use of a pipeline water delivery system. Under the advantages of keeping the low price of the electromagnetic valve and being convenient and fast to control, the electromagnetic valve with the working condition feedback function needs to be researched urgently to solve the problems in the prior art.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide a solenoid valve with a monitorable state, which solves the problem that the working state of the traditional solenoid valve cannot be monitored. According to the invention, the signal processing module is used for receiving and processing the pressure signal of the working condition monitoring sensor at the bottom of the static iron core, so that the working condition of the electromagnetic valve can be fed back in real time, and the opening and closing state of the electromagnetic valve can be accurately judged.
The technical scheme is as follows: the invention relates to a state-monitorable electromagnetic valve which comprises an electromagnetic valve body, wherein an upper cavity is fixedly mounted above the electromagnetic valve body, a static iron core is placed in the center of the upper cavity, an electromagnetic coil taking the center of the upper cavity as an axis is wound on the static iron core, the bottom of the static iron core is fixedly connected with one end of a reset spring, the other end of the reset spring extends into a round hole in the top of a movable iron core, the bottom of the movable iron core is fixedly connected with a sealing element, the sealing element is used for sealing a valve port of a water outlet cavity of the electromagnetic valve body, two working condition monitoring sensors symmetrically arranged relative to the reset spring are further arranged at the bottom of the static iron core, and the working condition monitoring sensors are electrically connected with a;
when the electromagnet coil is electrified, the movable iron core is attracted by the static iron core, the reset spring is compressed, the sealing element is separated from the valve port of the water outlet chamber, then the electromagnetic valve is conducted, the working condition monitoring sensor is used for collecting a pressure signal generated by the pressure of the movable iron core and sending the pressure signal to the signal processing module, and the signal processing module processes the pressure signal to obtain state information of the electromagnetic valve.
Furthermore, the working condition monitoring sensor is a resistance strain type sensor, and the resistance value of the resistance strain type sensor changes along with the magnitude of the external pressure; the signal processing module obtains the state information of the electromagnetic valve according to the pressure signal transmitted by the change of the resistance value of the resistance strain type sensor. When the movable iron core impacts the working condition monitoring sensor, the strain gauge is deformed, and the resistance value is increased; when the movable iron core is blocked and can not move upwards, the strain gauge of the resistance strain sensor does not deform, and the resistance value of the strain gauge does not change.
Furthermore, a working condition checking sensor is further arranged in the water outlet cavity of the electromagnetic valve body and electrically connected with the signal processing module, and the signal processing module is used for checking a water flow pressure signal transmitted by the sensor according to the working condition and judging the state information of the electromagnetic valve by combining the pressure signal of the working condition monitoring sensor.
Further, the signal processing module judges the state information of the electromagnetic valve according to the pressure signal of the working condition monitoring sensor and the water flow pressure signal of the working condition checking sensor, and the process is as follows: when the working condition monitoring sensor has a pressure signal and the working condition checking sensor has a water flow pressure signal and reaches the maximum value corresponding to the normal working condition, the signal processing module judges and processes the two signals and judges that the electromagnetic valve is normally opened; when the working condition monitoring sensor has a pressure signal and the working condition checking sensor has no water flow pressure signal or the water flow pressure signal is smaller than the maximum value corresponding to the normal working condition, the signal processing module judges that the water outlet chamber of the electromagnetic valve body is blocked; when the working condition monitoring sensor has no pressure signal and the working condition checking sensor has a water flow pressure signal, the signal processing module judges that the movable iron core is blocked so that the electromagnetic valve cannot be completely opened or the electromagnetic valve has leakage and cannot be completely closed; when the working condition monitoring sensor has no pressure signal and the working condition checking sensor has no water flow pressure signal, the signal processing module judges that the electromagnetic valve is normally turned off.
Further, the working condition checking sensor is a resistance strain type sensor, and the resistance value of the resistance strain type sensor changes along with the magnitude of the external pressure; when the electromagnetic valve is normally opened, the resistance value of the working condition checking sensor reaches the maximum value under the corresponding working condition by the pressure of water flow passing through the interior of the water outlet cavity of the valve body of the electromagnetic valve; when the water outlet chamber of the electromagnetic valve body is blocked, the resistance value of the working condition checking sensor is lower than the maximum value under the normal working condition.
Furthermore, a junction box is fixedly mounted on one side of the upper cavity, a power supply is arranged in the junction box, and the power supply supplies power to the electromagnet coil, the working condition monitoring sensor, the signal processing module and the working condition checking sensor.
Furthermore, the signal processing module is a single chip microcomputer.
Furthermore, the signal processing module is electrically connected with a display, and the display is connected with a power supply of the junction box through a power supply connecting wire.
The invention has the advantages that:
(1) according to the pressure signal received by the signal processing module and generated by the working condition monitoring sensor arranged at the bottom of the static iron core, whether the movable iron core is sucked up or not can be accurately and reliably judged, the opening and closing state of the electromagnetic valve is fed back, the situation that the preset control effect cannot be finished due to the fact that the electromagnetic valve cannot be normally opened is avoided, and a basis is provided for timely maintenance;
(2) the working condition monitoring system comprises a signal processing module, a sensor, a working condition monitoring module, a monitoring module and a control module, wherein the signal processing module receives a water flow pressure signal generated by the sensor according to the working condition of the sensor arranged in a water outlet chamber of a valve body of the electromagnetic valve, the working condition of the electromagnetic valve is checked by combining the pressure signal of the working condition monitoring sensor, the working conditions of the electromagnetic valve are jointly judged, the electromagnetic valve is normally opened, normally closed, blocked by a movable iron core, the water outlet chamber is blocked and the like, so that the monitoring result.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The invention is further described below with reference to the following figures and examples:
as shown in fig. 1, the electromagnetic valve capable of monitoring the state of the invention comprises an electromagnetic valve body 1, an upper cavity 2 is fixedly installed above the electromagnetic valve body 1, a junction box 9 is fixedly installed on one side of the upper cavity 2, a power supply is arranged in the junction box 9, a static iron core 3 is placed at the center of the upper cavity 2, an electromagnet coil 4 taking the center of the upper cavity 2 as an axis is wound on the static iron core 3, the bottom of the static iron core 3 is fixedly connected with one end of a reset spring 5, the other end of the reset spring 5 extends into a round hole at the top of a movable iron core 6, the bottom of the movable iron core 6 is fixedly connected with a sealing element 7, the sealing element 7 is used for sealing a valve port of a water outlet cavity 8 of the electromagnetic valve body 1, the water outlet cavity 8 is a water outlet of the electromagnetic valve body 1, two working condition monitoring sensors 10 symmetrically arranged relative to the reset spring 5 are;
when the electromagnet coil 4 is electrified, the movable iron core 6 is attracted by the static iron core 3, so that the reset spring 5 is compressed, the working condition monitoring sensor 10 generates a pressure signal under the pressure of the movable iron core 6, and the electromagnetic valve is conducted when the sealing element 7 is separated from the valve port of the water outlet chamber 8; on the contrary, after the electromagnet coil 4 is de-energized, the movable iron core 6 is reset under the elastic force of the reset spring 5, the working condition monitoring sensor 10 is not stressed by the pressure of the movable iron core 6 any more, the sealing element 7 compresses the valve port of the water outlet chamber 8, and the electromagnetic valve is closed; in the process, the working condition monitoring sensor 10 is used for collecting a pressure signal generated by the pressure of the movable iron core 6 and sending the pressure signal to the signal processing module 11, and the signal processing module 11 processes the pressure signal to obtain state information of the electromagnetic valve, including the opening and closing of the electromagnetic valve; the signal processing module 11 receives a pressure signal generated by the working condition monitoring sensor 10 arranged at the bottom of the static iron core 3, can accurately and reliably judge whether the movable iron core 6 is sucked up, and feeds back the opening and closing state of the electromagnetic valve, so that the situation that the preset control effect cannot be finished due to the fact that the electromagnetic valve cannot be normally opened is avoided, and a basis is provided for timely maintenance;
a working condition checking sensor 12 is further arranged in the water outlet cavity 8 of the electromagnetic valve body 1, the working condition checking sensor 12 is electrically connected with the signal processing module 11, signals of the working condition checking sensor 12 can be used for checking working conditions of the electromagnetic valve, the signal processing module 11 checks water flow pressure signals transmitted by the sensor 12 according to the working conditions, and monitors pressure signals of the sensor 11 by combining the working conditions to check working conditions of the electromagnetic valve and judge state information of the electromagnetic valve, wherein the working conditions comprise normal opening, normal closing, movable iron core blocking, water outlet cavity blocking and the like of the electromagnetic valve, so that a monitoring result is more accurate and detailed;
the working condition monitoring sensor 10 and the working condition checking sensor 12 are resistance strain type sensors, the resistance value of the resistance strain type sensors changes along with the size of the external pressure, and the principle is as follows: when the resistance strain type sensor is subjected to external pressure, a strain gauge of the resistance strain type sensor is compressed to generate deformation, the sectional area is reduced, and the resistance value is increased to generate a pressure signal; when the external pressure disappears, the strain gauge of the resistance strain type sensor restores to the original state, the resistance value is reduced to the original value, and the pressure signal disappears; the signal processing module 11 obtains the state information of the electromagnetic valve according to the pressure signal transmitted by the change of the resistance value of the resistance strain type sensor;
when the electromagnetic valve is normally opened, the working condition checking sensor 12 inside the water outlet cavity 8 of the electromagnetic valve body 1 is impacted by water flow to generate a pressure signal, and the resistance value of the working condition checking sensor 12 reaches the maximum value under the corresponding working condition through the water flow pressure, namely the pressure signal at the moment is the maximum value corresponding to the normal working condition; when the water outlet chamber 8 of the electromagnetic valve body 1 is blocked, water flow cannot pass through or cannot pass through the water outlet chamber 8 according to normal working conditions, and the resistance value of the working condition checking sensor 12 is lower than the maximum value under the normal working conditions, namely the working condition checking sensor 12 is not impacted by the water flow any more or a pressure signal generated by the impact of the water flow is smaller than the maximum value corresponding to the normal working conditions;
the signal processing module 11 determines the state information of the electromagnetic valve according to the pressure signal of the working condition monitoring sensor 10 and the water flow pressure signal of the working condition checking sensor 12, and the process is as follows:
when the device is used, the power supply in the junction box 9 supplies power to the electromagnet coil 4, the working condition monitoring sensor 10, the signal processing module 11 and the working condition checking sensor 12, the signal processing module 11 is a single chip microcomputer, the type of the single chip microcomputer can be STC15W4K56S4, and the single chip microcomputer is positioned at the top of the upper chamber 2; the static iron core 3 is magnetized after the electromagnet coil 4 is electrified, the movable iron core 6 is adsorbed to move upwards, the sealing element 7 positioned at the bottom of the movable iron core 6 is separated from a valve port of the water outlet chamber 8, and the strain gauge deforms when the movable iron core 6 upwards impacts the working condition monitoring sensor 10, so that the sectional area of the resistor is reduced, and the resistance value is increased, thereby generating a pressure signal; after the electromagnetic valve is normally opened, water flow passing through the water outlet chamber 8 impacts the working condition checking sensor 12 to deform the strain gauge, so that the sectional area of the resistor is reduced, the resistance value is increased, and the generated water flow pressure signal reaches the maximum value corresponding to the normal working condition, the working condition monitoring sensor 10 is used, and the resistance strain type sensor of the working condition checking sensor 12 transmits the changed pressure signal to the signal processing module 11 through a signal wire;
the signal processing module 11 makes a judgment accurately and reliably according to the two groups of received signals, and judges the real-time working condition of the electromagnetic valve: when the working condition monitoring sensor has a pressure signal of 10 and the working condition checking sensor 12 has a water flow pressure signal and reaches the maximum value corresponding to the normal working condition, the signal processing module 11 judges and processes the two signals and judges that the electromagnetic valve is normally opened; when the working condition monitoring sensor 10 has a pressure signal and the working condition checking sensor 12 has no water flow pressure signal or the water flow pressure signal is smaller than the maximum value corresponding to the normal working condition, the signal processing module 11 judges that the water outlet chamber 8 of the electromagnetic valve body 1 is blocked; when the working condition monitoring sensor 10 has no pressure signal and the working condition checking sensor 12 has a water flow pressure signal, the signal processing module 11 determines that the movable iron core 6 is blocked so that the electromagnetic valve cannot be completely opened or the electromagnetic valve has leakage and cannot be completely closed; when the working condition monitoring sensor 10 has no pressure signal and the working condition checking sensor 12 has no water flow pressure signal, the signal processing module 11 judges that the electromagnetic valve is normally turned off;
the signal processing module 11 is also electrically connected with a display, the display is connected with a power supply of the junction box 9 through a power supply connecting wire, and the display is an LED display screen and is used for displaying real-time working condition information of the electromagnetic valve;
in conclusion, the electromagnetic valve which can be monitored in the state receives the pressure signal changes generated by the working condition monitoring sensor 10 fixedly connected to the bottom of the static iron core 3 and the working condition checking sensor 12 fixedly connected to the inside of the water outlet cavity 8 through the signal processing module 11, the real-time working condition of the electromagnetic valve is accurately judged, the problem that the working state of the traditional electromagnetic valve cannot be monitored is effectively solved, meanwhile, a user can conveniently master the real-time working condition of the electromagnetic valve, and a reliable basis is provided for daily use and maintenance.
Claims (8)
1. The utility model provides a solenoid valve that state can be monitored, includes the solenoid valve body, the top fixed mounting of solenoid valve body has last cavity, its characterized in that: a static iron core is placed in the center of the upper cavity, an electromagnet coil taking the center of the upper cavity as an axis is wound on the static iron core, the bottom of the static iron core is fixedly connected with one end of a reset spring, the other end of the reset spring extends into a round hole in the top of the movable iron core, the bottom of the movable iron core is fixedly connected with a sealing element, the sealing element is used for sealing a valve port of a water outlet cavity of the electromagnetic valve body, two working condition monitoring sensors symmetrically arranged relative to the reset spring are further arranged at the bottom of the static iron core, and the working condition monitoring sensors are electrically connected with a signal processing module;
when the electromagnet coil is electrified, the movable iron core is attracted by the static iron core, the reset spring is compressed, the sealing element is separated from the valve port of the water outlet chamber, then the electromagnetic valve is conducted, the working condition monitoring sensor is used for collecting a pressure signal generated by the pressure of the movable iron core and sending the pressure signal to the signal processing module, and the signal processing module processes the pressure signal to obtain state information of the electromagnetic valve.
2. A condition monitorable solenoid valve according to claim 1 and wherein: the working condition monitoring sensor is a resistance strain type sensor, and the resistance value of the working condition monitoring sensor changes along with the magnitude of the external pressure; the signal processing module obtains the state information of the electromagnetic valve according to the pressure signal transmitted by the change of the resistance value of the resistance strain type sensor.
3. A condition monitorable solenoid valve according to claim 1 and wherein: the water outlet cavity of the electromagnetic valve body is also internally provided with a working condition checking sensor which is electrically connected with the signal processing module, and the signal processing module is used for checking a water flow pressure signal transmitted by the sensor according to the working condition and judging the state information of the electromagnetic valve by combining the pressure signal of the working condition monitoring sensor.
4. A condition monitorable solenoid valve according to claim 3 and wherein: the signal processing module judges the state information of the electromagnetic valve according to the pressure signal of the working condition monitoring sensor and the water flow pressure signal of the working condition checking sensor, and the process is as follows: when the working condition monitoring sensor has a pressure signal and the working condition checking sensor has a water flow pressure signal and reaches the maximum value corresponding to the normal working condition, the signal processing module judges and processes the two signals and judges that the electromagnetic valve is normally opened; when the working condition monitoring sensor has a pressure signal and the working condition checking sensor has no water flow pressure signal or the water flow pressure signal is smaller than the maximum value corresponding to the normal working condition, the signal processing module judges that the water outlet chamber of the electromagnetic valve body is blocked; when the working condition monitoring sensor has no pressure signal and the working condition checking sensor has a water flow pressure signal, the signal processing module judges that the movable iron core is blocked so that the electromagnetic valve cannot be completely opened or the electromagnetic valve has leakage and cannot be completely closed; when the working condition monitoring sensor has no pressure signal and the working condition checking sensor has no water flow pressure signal, the signal processing module judges that the electromagnetic valve is normally turned off.
5. A condition monitorable solenoid valve according to claim 3 and wherein: the working condition checking sensor is a resistance strain type sensor, and the resistance value of the resistance strain type sensor changes along with the magnitude of the external pressure; when the electromagnetic valve is normally opened, the resistance value of the working condition checking sensor reaches the maximum value under the corresponding working condition by the pressure of water flow passing through the interior of the water outlet cavity of the valve body of the electromagnetic valve; when the water outlet chamber of the electromagnetic valve body is blocked, the resistance value of the working condition checking sensor is lower than the maximum value under the normal working condition.
6. A condition monitorable solenoid valve according to claim 3 and wherein: and a junction box is fixedly installed on one side of the upper cavity, a power supply is arranged in the junction box, and the power supply supplies power to the electromagnet coil, the working condition monitoring sensor, the signal processing module and the working condition checking sensor.
7. A condition monitorable solenoid valve according to claim 1 and wherein: the signal processing module is a single chip microcomputer.
8. A condition monitorable solenoid valve according to claim 6 and wherein: the signal processing module is also electrically connected with a display, and the display is connected with a power supply of the junction box through a power supply connecting wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910999853.3A CN110630806A (en) | 2019-10-21 | 2019-10-21 | Electromagnetic valve with monitorable state |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910999853.3A CN110630806A (en) | 2019-10-21 | 2019-10-21 | Electromagnetic valve with monitorable state |
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| Publication Number | Publication Date |
|---|---|
| CN110630806A true CN110630806A (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910999853.3A Pending CN110630806A (en) | 2019-10-21 | 2019-10-21 | Electromagnetic valve with monitorable state |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944800A (en) * | 2021-11-05 | 2022-01-18 | 上海鲲华新能源科技有限公司 | Electromagnetic valve with on-off signal feedback |
| US11867314B2 (en) | 2018-05-31 | 2024-01-09 | Fas Medic S.A. | Method and apparatus for energising a solenoid of a valve assembly |
-
2019
- 2019-10-21 CN CN201910999853.3A patent/CN110630806A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11867314B2 (en) | 2018-05-31 | 2024-01-09 | Fas Medic S.A. | Method and apparatus for energising a solenoid of a valve assembly |
| CN113944800A (en) * | 2021-11-05 | 2022-01-18 | 上海鲲华新能源科技有限公司 | Electromagnetic valve with on-off signal feedback |
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