CN212721648U - Filtrate tank overflow alarm device based on optical coupling - Google Patents
Filtrate tank overflow alarm device based on optical coupling Download PDFInfo
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- CN212721648U CN212721648U CN202020785132.0U CN202020785132U CN212721648U CN 212721648 U CN212721648 U CN 212721648U CN 202020785132 U CN202020785132 U CN 202020785132U CN 212721648 U CN212721648 U CN 212721648U
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Abstract
The utility model discloses a filtrating pool overflow alarm device based on optical coupling, including the level gauge of measuring filtrating pool liquid level, being connected the transistor liquid level relay of level gauge signal output part, with the motor that the signal output part of transistor liquid level relay is connected, the motor is being connected and is being provided with the circuit of adjusting filtrating pool and overflow pipe liquid respectively, and transistor liquid level relay is connected with the circuit signal input part of motor regulation filtrating pool, and the circuit signal input part of motor regulation overflow pipe liquid is equipped with a switching element; the switch element is formed by connecting an optocoupler relay and a light-emitting diode in series, the light-emitting diode is connected at two ends of the liquid level meter in parallel, and a signal input end of the switch element is also connected with a sensor arranged in the overflow pipe. By adopting the technical scheme, the liquid in the overflow pipe can be timely discharged, the acousto-optic alarm is given out, and the liquid level meter is timely maintained.
Description
Technical Field
The utility model belongs to the photoelectric control field, more specifically says, the utility model relates to a filtrating pond overflow alarm device based on optical coupling.
Background
The current signal of 4-20 milliamperes that uses of the ultrasonic level meter as the liquid level detection device for the filtrate pond detection now, on the one hand is used for the liquid level display of host computer operation picture, and on the other hand is as control signal, controls the start-up of filtrate pond motor and stops, and when the liquid level reached 70%, the motor started, and the water pump work is carried the filtrating to a secondary flotation retreatment, and when the liquid level was less than 50%, the motor stopped, and the water pump also stopped work simultaneously.
The level gauge can cause the liquid level detection distortion because of the erosion and other conditions of water mist, coal dust and the like in the tank occasionally in the use process, and the signal of the distortion can not represent the real situation of the liquid level in the tank, so when the liquid level in the tank really reaches the highest, the level gauge still displays the situation of outputting the signal of the low liquid level, the water pump can not be normally started, filtrate flows out from the overflow pipeline, and if the situation is not found timely, the production safety of a building and the ground environmental sanitation are seriously influenced. In the prior art, the distortion condition of the liquid level meter is checked manually and periodically, the timeliness is not realized, the influence caused by water entering the overflow pipe due to the distortion of the liquid level meter is caused most of the time, and the distortion of the liquid level meter cannot be found and solved at the first time.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a filtrating pond overflow alarm device based on optical coupling is provided, during this circuit for the distortion to the level gauge and the unable normal function time filtrating entering overflow pipe of water pump, can effectively solve the problem that the level gauge distortion brought.
In order to realize the purpose, the utility model discloses the technical scheme who takes does: the liquid level measuring device comprises a liquid level meter for measuring the liquid level of a filtrate tank, a transistor liquid level relay connected with a signal output end of the liquid level meter, and a motor connected with a signal output end of the transistor liquid level relay, wherein the motor is connected with circuits which are respectively used for adjusting the filtrate tank and the overflow pipe liquid; the switch element is composed of an optical coupling relay and a light emitting diode which are connected in series, the light emitting diode is connected in parallel at two ends of the liquid level meter and is provided with a filter circuit connected with a signal input end of the switch element, the signal input end of the switch element is also connected with a sensor arranged in the overflow pipe, an amplifying circuit is arranged at the signal connection end of the sensor and the light emitting diode, an audible and visual alarm is arranged at the signal output end of the amplifying circuit, and a voltage stabilizing circuit is arranged at the signal connection end of the audible and visual alarm and the amplifying circuit.
According to the filtrate tank overflow alarm device based on optical coupling, the transistor liquid level relay adopts a JYB-714 type transistor liquid level relay.
According to the technical scheme, the filtrate tank overflow alarm device based on optical coupling is characterized in that a rectifying circuit is arranged between the transistor liquid level relay and the signal connection end of the optical coupling relay and the motor, and the rectifying circuit is composed of a unidirectional conductive diode.
According to the technical scheme, the filter tank overflow alarm device based on optical coupling is characterized in that the filter circuit is composed of a filter capacitor and a diode.
According to the filtrate tank overflow alarm device based on optical coupling, the optical coupling relay adopts AQY212S, and the optical coupling relay realizes coupling through the light emitting of the light emitting diode.
This technical scheme provides a filtrate tank overflow alarm device based on optical coupling, the sensor adopts the water logging sensor.
According to the filtrate tank overflow alarm device based on optical coupling, the core of the amplifying circuit is a triode and a field effect tube.
According to the filtrate tank overflow alarm device based on optical coupling, the YS-01H audible and visual alarm is selected as the audible and visual alarm.
According to the technical scheme, the filter pool overflow alarm device based on optical coupling is characterized in that the voltage stabilizing circuit is formed by connecting a three-terminal voltage stabilizing integrated circuit LM7805 and a capacitor in parallel.
By adopting the technical scheme, when the liquid level meter is distorted, liquid enters the overflow pipe, the light emitting diode emits light, and the liquid level meter cannot continue to control the abnormal operation of the motor because the light emitting diode is connected in parallel at two ends of the liquid level meter; at the moment, the optical coupling relay controls the motor to discharge liquid of the overflow pipe, the audible and visual alarm gives out audible and visual alarm, the distortion problem of the liquid level meter can be timely repaired, filtrate is prevented from flowing out of the overflow pipe, and production safety and ground environmental sanitation are seriously affected.
The present invention will be described in more detail with reference to the accompanying drawings and examples.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
FIG. 1 is a schematic view of the structure of the device of the present invention;
FIG. 2 is a schematic diagram of the flow chart of the apparatus of the present invention;
Detailed Description
The following description of the embodiments of the present invention, with reference to the accompanying drawings, will be made in further detail to explain, by way of example, the shape and structure of the components, the mutual positions and connections between the components, the functions and operating principles of the components, the manufacturing process, and the operation and use method of the components, so as to help those skilled in the art to more completely, accurately and deeply understand the inventive concept and technical solutions of the present invention.
The optically coupled filtrate tank overflow alarm device shown in fig. 1 comprises a liquid level meter for measuring the liquid level of the filtrate tank, a transistor liquid level relay connected with the signal output end of the liquid level meter, and a motor connected with the signal output end of the transistor liquid level relay, wherein the motor is connected with circuits which are respectively used for adjusting the filtrate tank and the overflow pipe liquid, the transistor liquid level relay is connected with the circuit signal input end of the motor for adjusting the filtrate tank, and in addition, the circuit signal input end of the motor for adjusting the overflow pipe liquid is additionally provided with a switch element; the switch element is composed of an optical coupling relay and a light emitting diode which are connected in series, the light emitting diode is connected in parallel at two ends of the liquid level meter, a filter circuit is arranged and connected with a signal input end of the switch element, the signal input end of the switch element is also connected with a sensor arranged in the overflow pipe, an amplifying circuit is arranged at a signal connecting end of the sensor and the light emitting diode, a signal output end of the amplifying circuit is provided with an audible and visual alarm, and a signal connecting end of the audible and visual alarm and the amplifying circuit is provided with a.
The transistor liquid level relay adopts a JYB-714 type transistor liquid level relay, and the JYB-714 transistor liquid level relay is a basic element for automatic control in industrial production. The automatic control system is widely applied to liquid level control and temperature control, and is used as automatic control for expanding switching power supply tripping in various control electrical appliances. The relay has the advantages of simple circuit, small volume, light weight, low power consumption and high stability, and adopts an electronic tube plug-in structure, thereby being convenient to maintain.
The middle of the signal connecting end of the transistor liquid level relay, the optocoupler relay and the motor is provided with a rectifying circuit, and the rectifying circuit is composed of a unidirectional conductive diode. The rectifier circuit functions to protect loads such as a relay in the device.
The filter circuit comprises a filter capacitor and a diode, and is used for eliminating signal interference and ensuring the normal work of the optocoupler relay.
The optical coupling relay adopts AQY212S, and the optical coupling relay realizes coupling through the light emitting of the light emitting diode.
The sensor adopts a water immersion sensor, the water immersion sensor is based on the liquid conduction principle, an electrode is used for detecting whether filtrate exists, and the sensor is used for converting the filtrate into a dry contact point to output.
The core of the amplifying circuit is a triode and a field effect transistor, and the received signal needs to be amplified due to poor conductivity of water.
The YS-01H audible and visual alarm is selected as the audible and visual alarm to perform audible and visual double alarm.
The voltage stabilizing circuit is formed by connecting a three-terminal voltage stabilizing integrated circuit LM7805 and a capacitor in parallel, and the voltage stabilizing circuit is used for providing stable 5V voltage for the audible and visual alarm.
FIG. 2 is a schematic diagram of a flow chart, in which when the level gauge is working normally, the level of the filtrate tank is normal, there is no liquid in the overflow pipe, the motor controls the circuit of the overflow pipe not to be connected, and only the motor controls the circuit of the filtrate tank level to be connected; when the level gauge is out of normal, transistor level relay carries out abnormal operation, liquid overflow in the filtrating pond gets into the overflow pipe, water sensor detects and transmits for emitting diode through amplifier circuit after the liquid, behind the emitting diode passageway, circuit among the motor control filtrating pond is closed, opto-coupler relay in the circuit of control overflow pipe is opened, the circuit switch-on of motor control overflow pipe, the liquid in the overflow pipe is begun to discharge by the motor, and make audible-visual annunciator send audible-visual annunciation through voltage stabilizing circuit, the distortion of suggestion level gauge, need timely maintenance level gauge.
By adopting the technical scheme, when the liquid level meter is distorted, liquid enters the overflow pipe, the light emitting diode emits light, and the liquid level meter cannot continue to control the abnormal operation of the motor because the light emitting diode is connected in parallel at two ends of the liquid level meter; at the moment, the optical coupling relay controls the motor to discharge liquid of the overflow pipe, the audible and visual alarm gives out audible and visual alarm, the distortion problem of the liquid level meter can be timely repaired, filtrate is prevented from flowing out of the overflow pipe, and production safety and ground environmental sanitation are seriously affected.
The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, and various insubstantial improvements can be made without modification to the method and technical solution of the present invention, or the present invention can be directly applied to other occasions without modification, all within the scope of the present invention.
Claims (9)
1. The utility model provides a filtrating pond overflow alarm device based on optical coupling which characterized in that: the liquid level measuring device comprises a liquid level meter for measuring the liquid level of a filtrate tank, a transistor liquid level relay connected with a signal output end of the liquid level meter, and a motor connected with a signal output end of the transistor liquid level relay, wherein the motor is connected with circuits which are respectively used for adjusting the filtrate tank and the overflow pipe liquid;
the switch element is composed of an optical coupling relay and a light emitting diode which are connected in series, the light emitting diode is connected in parallel at two ends of the liquid level meter and is provided with a filter circuit connected with a signal input end of the switch element, the signal input end of the switch element is also connected with a sensor arranged in the overflow pipe, an amplifying circuit is arranged at the signal connection end of the sensor and the light emitting diode, an audible and visual alarm is arranged at the signal output end of the amplifying circuit, and a voltage stabilizing circuit is arranged at the signal connection end of the audible and visual alarm and the amplifying circuit.
2. The optically coupled filtrate tank overflow alarm device of claim 1, wherein: the transistor liquid level relay adopts a JYB-714 type transistor liquid level relay.
3. The optically coupled filtrate tank overflow alarm device of claim 1, wherein: and the middle of the signal connecting ends of the transistor liquid level relay, the optocoupler relay and the motor is provided with a rectifying circuit, and the rectifying circuit consists of a diode conducting in a single direction.
4. The optically coupled filtrate tank overflow alarm device of claim 1, wherein: the filter circuit consists of a filter capacitor and a diode.
5. The optically coupled filtrate tank overflow alarm device of claim 1, wherein: the optical coupling relay adopts AQY212S, and the optical coupling relay realizes coupling through the light emitting of a light emitting diode.
6. The optically coupled filtrate tank overflow alarm device of claim 1, wherein: the sensor adopts a water immersion sensor.
7. The optically coupled filtrate tank overflow alarm device of claim 1, wherein: the core of the amplifying circuit is a triode and a field effect transistor.
8. The optically coupled filtrate tank overflow alarm device of claim 1, wherein: and the audible and visual alarm adopts YS-01H audible and visual alarm.
9. The optically coupled filtrate tank overflow alarm device of claim 1, wherein: the voltage stabilizing circuit is formed by connecting a three-terminal voltage stabilizing integrated circuit LM7805 and a capacitor in parallel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020785132.0U CN212721648U (en) | 2020-05-13 | 2020-05-13 | Filtrate tank overflow alarm device based on optical coupling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020785132.0U CN212721648U (en) | 2020-05-13 | 2020-05-13 | Filtrate tank overflow alarm device based on optical coupling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357468A (en) * | 2021-07-24 | 2021-09-07 | 包头市迅达供暖设备有限公司 | Sleeve compensator capable of early warning |
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2020
- 2020-05-13 CN CN202020785132.0U patent/CN212721648U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357468A (en) * | 2021-07-24 | 2021-09-07 | 包头市迅达供暖设备有限公司 | Sleeve compensator capable of early warning |
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