CN210513255U - Novel water flow detector - Google Patents
Novel water flow detector Download PDFInfo
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- CN210513255U CN210513255U CN201921440498.8U CN201921440498U CN210513255U CN 210513255 U CN210513255 U CN 210513255U CN 201921440498 U CN201921440498 U CN 201921440498U CN 210513255 U CN210513255 U CN 210513255U
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Abstract
The utility model discloses a novel rivers detector relates to the technical field that the pipeline detected, and its technical scheme's main points are: the water flow motion detection device comprises a water flow motion detection device and a fault detection device, wherein the water flow motion detection device is used for detecting whether a pipeline starts to be filled with water, the fault detection device is connected with the water flow motion detection device through signals, and the output end of the fault detection device is connected with an alarm device. The utility model provides a pressure sensor detect the slower technical problem of corresponding speed, have the timely advantage of response.
Description
Technical Field
The utility model relates to a pipeline detects, in particular to novel rivers detector.
Background
The water flow detector comprises a sensor for detecting the flow rate of the water flow.
The flow meters are classified into differential pressure type flow meters, rotor flow meters, throttle type flow meters, slit flow meters, volumetric flow meters, electromagnetic flow meters, ultrasonic flow meters, and the like. Classifying according to media: liquid flow meters and gas flow meters.
In a fire fighting pipeline, a flow meter is generally used for calculating water usage and flow rate, and the fire fighting pipeline is a device for delivering water in an emergency situation, and is easy to cause damage to the pipeline when the pipeline is blocked.
The existing way for preventing pipeline blockage is to arrange a liquid pressure sensor in a pipeline, when the pressure is too high, the pipeline is blocked, but when the pressure reaches a preset value, the pipeline is blocked for a period of time, then the pressure can be generated, and the response speed is slow.
SUMMERY OF THE UTILITY MODEL
To the deficiency that prior art exists, the utility model aims to: the utility model provides a novel rivers detector has the advantage that in time learns the fire-fighting pipeline and damage.
The technical purpose is realized through the following technical scheme, a novel water flow detector comprises a water flow motion detection device and a fault detection device, wherein the water flow motion detection device is used for detecting whether a pipeline starts to be communicated with water, the fault detection device is connected to the water flow motion detection device through a signal, and the output end of the fault detection device is connected with an alarm device.
Through above-mentioned technical scheme, through the motion that rivers flow detection device detected whether rivers appear, when rivers begin to move the back, whether the trouble detection device begins to detect and blocks up the trouble, the change through flowmeter detection flow can be more timely, and is more sensitive for detecting through pressure sensor.
Furthermore, the water flow movement detection device comprises a flowmeter for detecting the water flow in the pipeline, and the output end of the flowmeter is connected with the input end of the fault detection device.
Through above-mentioned technical scheme, whether have the flow through the flowmeter in the detection pipeline, when having the flow, the fault detection device begins to detect.
Furthermore, the output end of the flow meter is connected with a comparator T1, the homodromous input of the comparator T1 is connected with the output end of the flow meter, and the reverse input end of the comparator T1 is connected with the output end of a first reference unit comparator T1 and the input end of the fault detection device.
Through above-mentioned technical scheme, can learn through comparator and first benchmark unit whether the flowmeter has the flow to produce, let the detection more accurate, when the flow value is greater than the benchmark value, explain that there is rivers to produce in the pipeline, start fault detection device and detect.
Further, an output end of the comparator T1 is connected to an amplifying transistor D1, and an output end of the amplifying transistor D1 is connected to an input end of the fault detection device.
Through the technical scheme, the signal output can be more obvious through the amplification effect of the triode, and the starting control of the fault detection device is easier.
Further, the fault detection device comprises a trigger switch connected in series at the output end of the flowmeter, and a comparator T2 connected at the output end of the trigger switch, wherein the reverse input end of the comparator T2 is connected to the trigger switch, the same-direction input end of the comparator T2 is connected with a second reference unit, and the output end of the comparator T2 is connected to the alarm device.
Through the technical scheme, the fault detection device is triggered through the trigger switch, the flow value of the flowmeter is compared with the flow value of the second reference unit through the comparator T2, the alarm device is triggered to give an alarm, and a worker can know that the pipeline is possibly blocked and is correspondingly timely.
Furthermore, the output end of the amplifying triode D1 is connected in series with a relay KM1, and a normally open contact KM1-1 of the relay KM1 is connected in series with the input end of the fault detection device.
Through the technical scheme, the output end of the water flow motion detection device is connected with the input end of the fault detection device through the relay KM 1.
Further, the flow meter in the water flow movement detection device and the flow meter in the fault detection device are the same flow meter.
Through the technical scheme, two detection processes are completed through one flowmeter, and cost is saved.
Further, a normally open contact KM1-2 of a relay is connected between the collector and the emitter of the triode D1.
Through above-mentioned technical scheme, fault detection device can continuously detect.
To sum up the utility model discloses following technological effect has:
1. whether the water flow moves or not is detected by the water flow detection device, and when the water flow moves, the fault detection device starts to detect whether the blockage fault occurs or not, so that the flow change detected by the flowmeter can be more timely and is more sensitive compared with the detection by the pressure sensor;
2. detecting whether the flow exists in the pipeline or not through a flowmeter, and when the flow exists, starting detection through a fault detection device;
3. the fault detection device is triggered through the trigger switch, the flow value of the flowmeter is compared with the second reference unit through the comparator T2, the alarm device is triggered to give an alarm, and a worker can know that the pipeline is possibly blocked and accordingly timely.
Drawings
FIG. 1 is a circuit diagram of embodiment 1;
FIG. 2 is a diagram showing the connection relationship of the spare pipes in example 2;
fig. 3 is a circuit diagram of embodiment 2.
Reference numerals: 1. a water flow movement detection device; 2. a fault detection device; 3. an electromagnetic valve.
Detailed Description
Embodiment 1, a novel rivers detector, refer to fig. 1, including rivers motion detection device 1 and fault detection device 2, detect through rivers motion detection device 1 and begin to have water motion in the pipeline, then prove that the condition of a fire appears, the fire control pipeline begins to work, detects whether pipe blockage appears through fault detection device 2.
The water flow movement detection device 1 comprises a water flow meter arranged on a fire fighting pipeline and used for detecting the fire fighting pipeline, a signal output end of the liquid flow meter is connected with a comparator T1, the comparator T1 comprises a homodromous input end and a reverse input end, the flow meter is connected to the homodromous input end of the comparator T1, the reverse input end of the comparator T1 is connected with a reference device, the first reference unit in the embodiment is two resistors R1 and R2 which are connected in series, and the reverse input end of the comparator is connected between a resistor R1 and a resistor R2.
The output end of the comparator T1 is connected with a triode D1, the base of the triode D1 is connected with the output end of the comparator T1, and the collector of the triode D1 is connected with a resistor R3 in series and then connected with a power supply VCC.
An emitter of the triode D1 is connected with a relay KM1, and a normally open contact of the relay KM1 is a starting switch of the fault detection device 2.
When the fire fighting pipeline starts to work, the flow detected by the flow meter is large, and the flow value signal detected by the flow meter is higher than the reference value of the first reference unit, the comparator T1 sends a trigger signal, the triode D1 is conducted, the relay KM1 is electrified, the fault detection device 2 starts to work, and whether the pipeline is blocked or not is detected.
The fault detection device 2 comprises the same flow meter as the water flow motion detection device 1, the output end of the flow meter is connected with a normally open contact KM1-1 of a relay KM1, the normally open contact KM1-1 of the relay KM1 is connected with a comparator T2 in series, the reverse input end of the comparator T2 is connected with the input end of the flow meter, the same-direction input end of the comparator is connected with a second reference unit, the second reference unit comprises two resistors R3 and R4 which are connected in series, and the resistor R3 and the resistor R4 are connected with the input end of the comparator. When the reduction value of the flow value is lower than the reference value of the second reference unit, the comparator T2 is triggered, the output end of the comparator T2 is connected with a triode D2, the collector of the triode D2 is connected with a resistor R5 in series and then connected to a power supply VCC, and the emitter of the triode D2 is connected with a buzzer.
The buzzer gives an alarm.
After the relay KM1 is powered on, the normally open contact KM1-1 of the electric appliance KM1 is closed, when the flow in the pipeline is suddenly reduced to the reference value of the second reference unit, which indicates that the pipeline is blocked, after the comparator T2 sends a blocking signal, the triode is conducted, the buzzer sounds, and a worker is informed that the pipeline is possibly blocked.
In the specific implementation process, when the fire fighting pipeline starts to work, the flow value detected by the flow meter exceeds the reference value of the first reference unit, after the relay KM1 is powered on, the normally open contact KM1-1 of the relay KM1 is closed, and in order to enable the fault detection device 2 to continuously detect, the normally open contact KM1-2 of the relay KM1 is connected between the collector of the triode D1 and the transmitter, so that the relay is continuously powered on.
After a normally open contact KM1-1 of the relay KM1 is closed, the flow value of the flowmeter and a second reference value are compared, and when the second reference value is higher than the flow value, the buzzer starts to give an alarm.
Embodiment 2, this embodiment is different from embodiment 1 in that: referring to fig. 2, the fire fighting pipeline is provided with a standby pipeline which is connected in parallel with the fire fighting pipeline, the standby pipeline is provided with an electromagnetic valve 3, a coil of the electromagnetic valve 3 is connected in parallel with a buzzer, and when the pipeline is blocked, water is supplied to the fire fighting pipeline through the standby pipeline.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (8)
1. A novel water flow detector is characterized in that: the water flow detection device comprises a water flow motion detection device (1) used for detecting whether a pipeline starts to be filled with water or not and a fault detection device (2) connected to the water flow motion detection device (1) through signals, wherein the output end of the fault detection device (2) is connected with an alarm device.
2. The novel water flow detector according to claim 1, wherein: the water flow motion detection device (1) comprises a flowmeter for detecting the water flow in a pipeline, and the output end of the flowmeter is connected with the input end of the fault detection device (2).
3. The novel water flow detector according to claim 2, wherein: the output end of the flowmeter is connected with a comparator T1, the homodromous input of the comparator T1 is connected with the output end of the flowmeter, and the reverse input end of the comparator T1 is connected with the output end of a first reference unit comparator T1 and the input end of the fault detection device (2).
4. A novel water flow detector as claimed in claim 3 wherein: the output end of the comparator T1 is connected with an amplifying triode D1, and the output end of the amplifying triode D1 is connected with the input end of the fault detection device (2).
5. The novel water flow detector according to any one of claims 1-4, wherein: the fault detection device (2) comprises a trigger switch connected in series at the output end of the flowmeter and a comparator T2 connected at the output end of the trigger switch, wherein the reverse input end of the comparator T2 is connected to the trigger switch, the same-direction input end of the comparator T2 is connected with a second reference unit, and the output end of the comparator T2 is connected to the alarm device.
6. The novel water flow detector according to claim 4, wherein: the output end of the amplifying triode D1 is connected in series with a relay KM1, and a normally open contact KM1-1 of the relay KM1 is connected in series with the input end of the fault detection device (2).
7. The novel water flow detector according to claim 6, wherein: the flow meter in the water flow movement detection device (1) and the flow meter in the fault detection device (2) are the same flow meter.
8. The novel water flow detector according to claim 7, wherein: and a normally open contact KM1-2 of a relay KM1 is connected between the collector and the emitter of the triode D1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921440498.8U CN210513255U (en) | 2019-09-02 | 2019-09-02 | Novel water flow detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921440498.8U CN210513255U (en) | 2019-09-02 | 2019-09-02 | Novel water flow detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210513255U true CN210513255U (en) | 2020-05-12 |
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| CN201921440498.8U Active CN210513255U (en) | 2019-09-02 | 2019-09-02 | Novel water flow detector |
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| CN (1) | CN210513255U (en) |
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2019
- 2019-09-02 CN CN201921440498.8U patent/CN210513255U/en active Active
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