CN113959514A - Automatic detection water resource flowmeter for environmental protection - Google Patents

Automatic detection water resource flowmeter for environmental protection Download PDF

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Publication number
CN113959514A
CN113959514A CN202111088138.8A CN202111088138A CN113959514A CN 113959514 A CN113959514 A CN 113959514A CN 202111088138 A CN202111088138 A CN 202111088138A CN 113959514 A CN113959514 A CN 113959514A
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CN
China
Prior art keywords
detection mechanism
pipeline
flowmeter
water resource
pipe
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Pending
Application number
CN202111088138.8A
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Chinese (zh)
Inventor
姚贵军
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Nantong Borui Environmental Protection Technology Co ltd
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Nantong Borui Environmental Protection Technology Co ltd
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Priority to CN202111088138.8A priority Critical patent/CN113959514A/en
Publication of CN113959514A publication Critical patent/CN113959514A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/18Supports or connecting means for meters
    • G01F15/185Connecting means, e.g. bypass conduits
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F15/00Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
    • G01F15/18Supports or connecting means for meters
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F7/00Volume-flow measuring devices with two or more measuring ranges; Compound meters

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The invention provides an environment-friendly automatic detection water resource flowmeter, which belongs to the technical field of flowmeters and comprises a pipeline, wherein a third detection mechanism, a first detection mechanism and a second detection mechanism are sequentially arranged on the pipeline from left to right, a PLC (programmable logic controller) is arranged on the pipeline, the third detection mechanism, the first detection mechanism and the second detection mechanism are electrically connected with the PLC, the whole device is reasonable in structure arrangement and ingenious in concept, the measurement precision of the water resource flow is high, the problems of the flowmeters can be found in time, the specific flowmeter can be detected, the output detection result can be checked in real time, the errors and the irreversible loss caused by the errors are reduced, the third detection mechanism in the device adopts a positive displacement measurement mode, the fault rate is low, and a comparison method is utilized to effectively distinguish the specific flowmeter in the first detection mechanism and the second detection mechanism, and the loss is stopped in time, and the practicability is stronger.

Description

Automatic detection water resource flowmeter for environmental protection
Technical Field
The invention belongs to the technical field of flowmeters, and particularly relates to an environment-friendly automatic detection water resource flowmeter.
Background
The flow meter indicates the meter of the measured flow rate and/or the total amount of fluid in the selected time interval. Briefly, the flowmeter is used for measuring the flow rate of fluid in a pipeline or an open channel, and is further classified into a differential pressure type flowmeter, a rotor flowmeter, a throttling type flowmeter, a slit flowmeter, a volume flowmeter, an electromagnetic flowmeter, an ultrasonic flowmeter and the like. Classifying according to media: liquid flow meters and gas flow meters.
The water resource flowmeter for pipelines in the prior art has a plurality of types, but once the internal structure of the flowmeter breaks down, the detection result or the precision of the flowmeter can be greatly influenced, and some safety accidents are easily caused by the large error or wrong detection result after long-time use, so that the automatic detection water resource flowmeter for environmental protection is designed.
Disclosure of Invention
The invention aims to provide an environment-friendly automatic detection water resource flowmeter, and aims to solve the problems that in the prior art, a plurality of water resource flowmeters for pipelines have various internal structures, once the internal structures of the water resource flowmeters break down, the detection results or precision of the water resource flowmeters are greatly influenced, and long-time use of the water resource flowmeters causes large errors or wrong detection results easily cause safety accidents.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic detection water resource flowmeter for environmental protection comprises a pipeline, a third detection mechanism, a first detection mechanism and a second detection mechanism are sequentially arranged on the pipeline from left to right, a PLC controller is arranged on the pipeline, and the third detection mechanism, the first detection mechanism and the second detection mechanism are all electrically connected with the PLC, the third detection mechanism comprises a first electromagnetic valve which is arranged on the pipeline, the bottom of the circumferential surface of the pipeline is connected with a U-shaped pipe, the left pipe of the U-shaped pipe is communicated with the pipeline through a through groove, and a third electromagnetic valve is arranged in the through groove, the top of the right side pipe of the U-shaped pipe is fixed with the pipeline, a detection plate is arranged at the top of the right side pipe of the U-shaped pipe, the detection plate is electrically connected with a liquid inductor, the bottom of the U-shaped pipe is communicated with a drain pipe, and a second electromagnetic valve is arranged in the drain pipe.
Preferably, first detection mechanism includes ultrasonic flowmeter, ultrasonic flowmeter passes through fixture and fixes on the pipeline, fixture includes clamp ring and lower clamp ring, go up the clamp ring and locate the circumference surface of pipeline with lower clamp ring through a plurality of bolt overlap, and the surface laminating of ultrasonic flowmeter and pipeline.
Preferably, the second detection means is constituted by a differential pressure type flow meter.
Preferably, a spacing distance of one to two meters is arranged between the first detection mechanism and the second detection mechanism.
Preferably, the bottom of the drain pipe is communicated with an expanding pipe, and the expanding pipe is provided with a taper of an upward drawing die.
Preferably, the first electromagnetic valve is arranged on the right side of the intersection of the left pipe of the third detection mechanism and the pipeline.
Preferably, the PLC controller is fixed on the pipeline through the fixed rod, and the PLC controller is connected with the ultrasonic flowmeter, the differential pressure type flowmeter, the first solenoid valve, the liquid inductor, the second solenoid valve and the third solenoid valve in sequence.
Preferably, a timer is arranged in the PLC controller, and the timer is electrically connected with the third electromagnetic valve and the liquid sensor respectively.
Compared with the prior art, the invention has the beneficial effects that:
1. in the scheme, the whole device has reasonable structure and skillful conception, has high measurement precision on the water resource flow, can find the problems of the flow meters in time and detect which flow meter is specific, can check the output detection result in real time, reduces errors and irreversible loss caused by the errors, has smaller failure rate by adopting a positive displacement measurement mode for a third detection mechanism in the device, can effectively distinguish which flow meter in the first detection mechanism and the second detection mechanism has problems by utilizing a contrast method, can stop the loss in time, has stronger practicability, effectively solves the problems that the water resource flow meters aiming at pipelines have a plurality of types in the prior art, but the detection result or the precision of the water resource flow meters can be greatly influenced once the internal structure of the water resource flow meters has the failure, and the problems that the error is larger after long-time use or the wrong detection result easily causes some safety accidents and the like, when the invention is used, the third detection mechanism is in a state to be opened firstly, the first detection mechanism and the second detection mechanism are in a normally open state to detect the flow in the pipeline, the first detection mechanism and the second detection mechanism transmit the detection result to the PLC controller in real time, the PLC controller compares the two data and transmits the average value of the two data outwards as the final detection result, simultaneously calculates the difference value between the two data in real time, controls the third detection mechanism to be opened once the difference value exceeds a preset value, the PLC controller controls the first electromagnetic valve to close the water circulation state in the pipeline before the third detection mechanism is opened, and simultaneously opens the third electromagnetic valve in the through groove to ensure that the liquid flows into the U-shaped pipe, when the liquid in the U-shaped pipe reaches the top of the right side pipe, the detection plate and the liquid sensor contact the upwelling liquid and transmit an electric signal to the PLC controller, at the moment, the first electromagnetic valve is opened, liquid in the pipeline continues to flow, the PLC timer can record the opening time of the third electromagnetic valve and the time point when the liquid sensor detects the liquid, calculate the time difference, input the U-shaped pipe inner volume into the PLC in advance, calculate the flow rapidly, then compare the data with the data in the first detection mechanism and the second detection mechanism, the data which is closest to the third detection mechanism is measured and calculated, and the other is a flow meter with problems, and the flow meter with problems needs to be overhauled or maintained in time;
2. in the scheme, the ultrasonic flowmeter in the first detection mechanism is installed through the clamping mechanism, so that the assembly and disassembly are convenient, the measurement precision is high, the replacement and maintenance are convenient, the second detection mechanism is formed by a differential pressure type flowmeter and can be distinguished from the first detection mechanism to measure the liquid flow in the pipeline by utilizing different principles, the measurement precision is further improved, the spacing distance between the first detection mechanism and the second detection mechanism can prevent the pressure measurement mode of the second detection mechanism from influencing the measurement result of the first detection mechanism, the pipe expanding with the taper of the upward drawing die can drain the U-shaped pipe after the measurement of the third detection mechanism is finished, the next detection is convenient, the pipe expanding can also improve the drainage speed in the whole U-shaped pipe, the first electromagnetic valve is arranged at the right side of the intersection of the left pipe of the third detection mechanism and the pipeline, and when the third detection mechanism is started to measure, the first time of water flows into in the U-shaped pipe through leading to the groove in the pipeline, prevents to influence the U-shaped intraductal volume to lead to measuring result accurate inadequately, be provided with the time-recorder in the PLC controller and can be used to the U-shaped intraductal liquid entering and carry full state and time.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a first perspective view of the present invention;
FIG. 3 is a front view of the present invention;
fig. 4 is a second perspective view of the present invention.
In the figure: 1. a pipeline; 2. a first detection mechanism; 201. an ultrasonic flow meter; 202. an upper clamping ring; 203. a lower clamping ring; 204. a bolt; 3. a second detection mechanism; 4. a third detection mechanism; 401. a first solenoid valve; 402. a U-shaped tube; 403. detecting a plate; 404. a liquid sensor; 405. a through groove; 406. a drain pipe; 407. a second solenoid valve; 408. expanding the pipe; 5. fixing the rod; 6. a PLC controller.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example 1
Referring to fig. 1-4, the present invention provides the following technical solutions: an automatic detection water resource flow meter for environmental protection comprises a pipeline 1, a third detection mechanism 4, a first detection mechanism 2 and a second detection mechanism 3 are sequentially arranged on the pipeline 1 from left to right, a PLC (programmable logic controller) 6 is arranged on the pipeline 1, the third detection mechanism 4, the first detection mechanism 2 and the second detection mechanism 3 are all electrically connected with the PLC 6, the third detection mechanism 4 comprises a first electromagnetic valve 401, the first electromagnetic valve 401 is arranged on the pipeline 1, a U-shaped pipe 402 is connected to the bottom of the circumferential surface of the pipeline 1, a left pipe of the U-shaped pipe 402 is communicated with the pipeline 1 through a through groove 405, a third electromagnetic valve is arranged in the through groove 405, the top of the right pipe of the U-shaped pipe 402 is fixed with the pipeline 1, a detection plate 403 is arranged at the top of the right pipe of the U-shaped pipe 402, a liquid sensor 404 is electrically connected with the detection plate 403, a drain pipe 406 is communicated with the bottom of the U-shaped pipe 402, a second solenoid valve 407 is provided in the drain pipe 406.
In the embodiment of the invention, the whole device has reasonable structure and skillful conception, has high measurement precision on the water resource flow, can find the problems of the flow meter in time, detects the specific flow meter, can check the output detection result in real time, reduces errors and irreversible loss caused by the errors, adopts a volume measurement mode for the third detection mechanism 4 in the device, has smaller failure rate, utilizes a contrast method to effectively distinguish which specific flow meter in the first detection mechanism 2 and the second detection mechanism 3 has problems and stop the loss in time, has stronger practicability, effectively solves the problems that the water resource flow meters aiming at pipelines have a plurality of problems, but the detection result or precision of the water resource flow meters can be greatly influenced once the internal structure of the water resource flow meters fails, and the detection result with larger errors or errors after long-time use is easy to cause some safety accidents and the like, when the invention is used, firstly, the third detection mechanism 4 is in a state to be opened, the first detection mechanism 2 and the second detection mechanism 3 are in a normally open state to detect the flow in the pipeline 1, the first detection mechanism 2 and the second detection mechanism 3 transmit the detection result to the PLC controller 6 in real time, the PLC controller 6 compares the two data, transmits the average value of the two data outwards as the final detection result, calculates the difference value between the two data in real time, controls the third detection mechanism 4 to be opened once the difference value exceeds the preset value, firstly controls the first electromagnetic valve 401 to close the water circulation state in the pipeline 1 by the PLC controller 6 before the third detection mechanism 4 is opened, and simultaneously opens the third electromagnetic valve in the through groove 405 to enable the liquid to flow into the U-shaped pipe 402, when the liquid in the U-shaped pipe 402 reaches the top of the right side pipe, the detection plate 403 is contacted with the liquid sensor 404, and the electrical signal is transmitted into the PLC controller 6, at the moment, the first electromagnetic valve 401 is opened, the liquid in the pipeline 1 continuously circulates, the PLC controller 6 timer can record the opening time of the third electromagnetic valve and the time point of the liquid detected by the liquid sensor 404, calculate the time difference, input the volume in the U-shaped pipe 402 into the PLC controller 6 in advance, calculate the flow rapidly, then compare the data with the data in the first detection mechanism 2 and the second detection mechanism 3, the data measured and calculated closest to the third detection mechanism 4 is problem-free, and the other is a problem-free flow meter, and the flow meter needs to be overhauled or maintained in time.
Specifically, the first detection mechanism 2 includes an ultrasonic flowmeter 201, the ultrasonic flowmeter 201 is fixed on the pipeline 1 through a clamping mechanism, the clamping mechanism includes an upper clamp ring 202 and a lower clamp ring 203, the upper clamp ring 202 and the lower clamp ring 203 are sleeved on the circumferential surface of the pipeline 1 through a plurality of bolts 204, and the ultrasonic flowmeter 201 is attached to the surface of the pipeline 1.
In this embodiment: the ultrasonic flowmeter 201 in the first detection mechanism 2 is mounted through a clamping mechanism, so that the ultrasonic flowmeter is convenient to assemble and disassemble, high in measurement precision and convenient to replace and maintain.
Specifically, the second detection mechanism 3 is constituted by a differential pressure type flowmeter.
In this embodiment: the second detection mechanism 3 is formed by a differential pressure type flowmeter, and can be distinguished from the first detection mechanism 2, and the liquid flow in the pipeline 1 is measured by using different principles, so that the measurement precision is improved.
Specifically, a spacing distance of one to two meters is set between the first detection mechanism 2 and the second detection mechanism 3.
In this embodiment: the distance between the first detection mechanism 2 and the second detection mechanism 3 is set to be one to two meters, so that the pressure measurement mode of the second detection mechanism 3 can be prevented from influencing the measurement result of the first detection mechanism 2.
Specifically, the bottom of the drain pipe 406 is communicated with an expanding pipe 408, and the expanding pipe 408 is provided with an upward draft taper.
In this embodiment: the expanding tube 408 with the taper of the upward drawing die can drain the U-shaped tube 402 after the third detection mechanism 4 finishes measuring, so that the next detection is facilitated, and the expanding tube 408 can also improve the drainage speed in the whole U-shaped tube 402.
Specifically, the first electromagnetic valve 401 is disposed on the right side of the intersection between the left pipe of the third detection mechanism 4 and the pipeline 1.
In this embodiment: the first electromagnetic valve 401 is arranged on the right side of the intersection of the left pipe of the third detection mechanism 4 and the pipeline 1, so that when the third detection mechanism 4 is started for measurement, water in the pipeline 1 flows into the U-shaped pipe 402 through the through groove 405 at the first time, the internal volume of the U-shaped pipe 402 is prevented from being influenced, and the measurement result is not accurate enough.
Specifically, the PLC controller 6 is fixed to the pipeline 1 through the fixing rod 5, and the PLC controller 6 is electrically connected to the ultrasonic flowmeter 201, the differential pressure type flowmeter, the first electromagnetic valve 401, the liquid sensor 404, the second electromagnetic valve 407, and the third electromagnetic valve in sequence.
In this embodiment: the PLC controller 6, the ultrasonic flowmeter 201, the differential pressure flowmeter, and the plurality of electromagnetic valves are all in the prior art, and the internal structure and the specific working principle are not described herein in detail.
Specifically, a timer is disposed in the PLC controller 6, and the timer is electrically connected to the third electromagnetic valve and the liquid sensor 404, respectively.
In this embodiment: a timer is arranged in the PLC controller 6 and is used for timing the liquid entering and full loading state in the U-shaped tube 402.
The working principle and the using process of the invention are as follows: when the invention is used, firstly, the third detection mechanism 4 is in a state to be opened, the first detection mechanism 2 and the second detection mechanism 3 are in a normally open state to detect the flow in the pipeline 1, the first detection mechanism 2 and the second detection mechanism 3 transmit the detection result to the PLC controller 6 in real time, the PLC controller 6 compares the two data, transmits the average value of the two data outwards as the final detection result, calculates the difference value between the two data in real time, controls the third detection mechanism 4 to be opened once the difference value exceeds the preset value, firstly controls the first electromagnetic valve 401 to close the water circulation state in the pipeline 1 by the PLC controller 6 before the third detection mechanism 4 is opened, and simultaneously opens the third electromagnetic valve in the through groove 405 to enable the liquid to flow into the U-shaped pipe 402, when the liquid in the U-shaped pipe 402 reaches the top of the right side pipe, the detection plate 403 is contacted with the liquid sensor 404, and transmits the electrical signal to the PLC controller 6, at this moment, the first electromagnetic valve 401 is opened, the liquid in the pipeline 1 continues to circulate, and the PLC controller 6 timer will record the opening time of the third electromagnetic valve and the time point of the liquid detected by the liquid sensor 404, and calculate the time difference, and input the volume in the U-shaped pipe 402 into the PLC controller 6 in advance, so as to calculate the flow rapidly, then compare the data with the data in the first detection mechanism 2 and the second detection mechanism 3, the data measured and calculated closest to the third detection mechanism 4 will not be problematic, and the other is a problematic flow meter, which needs to be overhauled or maintained in time, the ultrasonic flow meter 201 in the first detection mechanism 2 is installed by the clamping mechanism, not only the loading and unloading are convenient, the measurement precision is higher, the replacement and maintenance are convenient, the second detection mechanism 3 is composed of a differential pressure type flow meter, which can be distinguished from the first detection mechanism 2, and measures the liquid flow in the pipeline 1 by using different principles, further, the measurement accuracy is improved, the distance between the first detection mechanism 2 and the second detection mechanism 3 is set to be one to two meters, which can prevent the pressure measurement mode of the second detection mechanism 3 from influencing the measurement result of the first detection mechanism 2, the expanding pipe 408 with the taper of the upward drawing die can drain the U-shaped pipe 402 after the measurement of the third detection mechanism 4 is completed, which is convenient for the next detection, the expanding pipe 408 can also improve the drainage speed in the whole U-shaped pipe 402, the first electromagnetic valve 401 is arranged at the right side of the intersection of the left pipe of the third detection mechanism 4 and the pipeline 1, when the third detection mechanism 4 is started to measure, the water in the pipeline 1 flows into the U-shaped pipe 402 through the through groove 405 for the first time, which can prevent the influence on the internal volume of the U-shaped pipe 402, thereby causing the measurement result to be not accurate enough, the timer arranged in the PLC 6 can be used for timing the liquid entering and full-loading state in the U-shaped pipe 402, the whole device is reasonable in structure setting, ingenious in conception, high in measurement accuracy of water resource flow, capable of finding the problems of the flow meters in time and detecting out which flow meter is specific, capable of checking the output detection result in real time, reducing errors and irreversible loss caused by the errors, and a third detection mechanism 4 in the device adopts a positive displacement measurement mode, and is low in fault rate.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. The utility model provides an automated inspection water resource flowmeter for environmental protection which characterized in that: comprises a pipeline (1), a third detection mechanism (4), a first detection mechanism (2) and a second detection mechanism (3) are sequentially arranged on the pipeline (1) from left to right, a PLC (programmable logic controller) (6) is arranged on the pipeline (1), the third detection mechanism (4), the first detection mechanism (2) and the second detection mechanism (3) are electrically connected with the PLC (6), the third detection mechanism (4) comprises a first electromagnetic valve (401), the first electromagnetic valve (401) is arranged on the pipeline (1), a U-shaped pipe (402) is connected to the bottom of the circumferential surface of the pipeline (1), the left pipe of the U-shaped pipe (402) is communicated with the pipeline (1) through a through groove (405), a third electromagnetic valve (405) is arranged in the through groove, the top of the right pipe of the U-shaped pipe (402) is fixed with the pipeline (1), a detection plate (403) is arranged at the top of the right pipe of the U-shaped pipe (402), the detection plate (403) is electrically connected with a liquid sensor (404), the bottom of the U-shaped pipe (402) is communicated with a drain pipe (406), and a second electromagnetic valve (407) is arranged in the drain pipe (406).
2. The automatic detection water resource flowmeter for environmental protection of claim 1, characterized in that: first detection mechanism (2) include ultrasonic flowmeter (201), ultrasonic flowmeter (201) is fixed on pipeline (1) through fixture, fixture includes clamp ring (202) and clamp ring (203) down, the circumference surface of pipeline (1) is located through a plurality of bolts (204) cover to upper clamp ring (202) and clamp ring (203) down, and ultrasonic flowmeter (201) and the surface laminating of pipeline (1).
3. The automatic detection water resource flowmeter for environmental protection of claim 2, characterized in that: the second detection mechanism (3) is composed of a differential pressure type flowmeter.
4. The automatic detection water resource flowmeter for environmental protection of claim 3, characterized in that: and a spacing distance of one to two meters is arranged between the first detection mechanism (2) and the second detection mechanism (3).
5. The automatic detection water resource flowmeter for environmental protection of claim 4, characterized in that: the bottom of the drain pipe (406) is communicated with a pipe expanding (408), and the pipe expanding (408) is provided with an upward drawing taper.
6. The automatic detection water resource flowmeter for environmental protection of claim 5, characterized in that: the first electromagnetic valve (401) is arranged on the right side of the intersection of the left pipe of the third detection mechanism (4) and the pipeline (1).
7. The automatic detection water resource flowmeter for environmental protection of claim 6, wherein: PLC controller (6) are fixed in on pipeline (1) through dead lever (5), PLC controller (6) in proper order with ultrasonic flowmeter (201), differential pressure formula flowmeter, first solenoid valve (401), liquid inductor (404), second solenoid valve (407) and third solenoid valve electric connection.
8. The automatic detection water resource flowmeter for environmental protection of claim 7, wherein: and a timer is arranged in the PLC (6), and is electrically connected with the third electromagnetic valve and the liquid sensor (404) respectively.
CN202111088138.8A 2021-09-16 2021-09-16 Automatic detection water resource flowmeter for environmental protection Pending CN113959514A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111088138.8A CN113959514A (en) 2021-09-16 2021-09-16 Automatic detection water resource flowmeter for environmental protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111088138.8A CN113959514A (en) 2021-09-16 2021-09-16 Automatic detection water resource flowmeter for environmental protection

Publications (1)

Publication Number Publication Date
CN113959514A true CN113959514A (en) 2022-01-21

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Application Number Title Priority Date Filing Date
CN202111088138.8A Pending CN113959514A (en) 2021-09-16 2021-09-16 Automatic detection water resource flowmeter for environmental protection

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114543907A (en) * 2022-02-14 2022-05-27 珠江水利委员会珠江流域水土保持监测中心站 Portable flow measuring device and method for multi-layer open channel based on water-jet principle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114543907A (en) * 2022-02-14 2022-05-27 珠江水利委员会珠江流域水土保持监测中心站 Portable flow measuring device and method for multi-layer open channel based on water-jet principle

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Application publication date: 20220121