CN209857977U - Be applied to not full pipe metering device of open channel low discharge, high velocity of flow - Google Patents
Be applied to not full pipe metering device of open channel low discharge, high velocity of flow Download PDFInfo
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- CN209857977U CN209857977U CN201920914942.9U CN201920914942U CN209857977U CN 209857977 U CN209857977 U CN 209857977U CN 201920914942 U CN201920914942 U CN 201920914942U CN 209857977 U CN209857977 U CN 209857977U
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Abstract
The application discloses be applied to not full tub of metering device of open channel low discharge, high velocity of flow, including submarine power electromagnetic flow meter, supersound liquid level detection ware, wireless transmission module and control end, supersound liquid level detection ware sets up in submarine power electromagnetic flow meter's buret top, and the control end is connected with submarine power electromagnetic flow meter, supersound liquid level detection ware and wireless transmission module respectively. Therefore, use this metering device, the control end can be according to the liquid level data that supersound liquid level detector gathered, the water velocity of dive electromagnetic flowmeter measurement and the cross sectional area of surveying pipe calculate and draw discharge, also can realize at the low discharge, the open channel of high velocity of flow uses electromagnetic flowmeter to carry out the non-full pipe flow and measures, measurement accuracy has effectively been improved, in addition, still be connected with wireless transmission module at the control end, can carry out wireless transmission through the relevant data that wireless transmission module will measure, to the metering device that installation distance is far away, data acquisition is easier.
Description
Technical Field
The application relates to the field of water flow measurement, in particular to a non-full pipe metering device applied to small flow and high flow rate of an open channel.
Background
The ecological civilization construction is brought into the national 'five-in-one' development overall layout, water resource protection and efficient utilization are one of important contents of the ecological civilization construction, the accurate metering level of agricultural water resource utilization is improved, and the method is an important measure for protecting water resources and improving the water resource utilization efficiency and benefits. At present, the water quantity metering precision of agricultural irrigation channels is not high, and especially for small-flow and high-flow-rate open channel water quantity (the flow of branch channel and bucket channel is only 0.1-0.3 m)3And/s) measurement accuracy is more difficult to meet actual requirements, and moreover, the channel ratio is steep, the flow velocity is high, and the flow measurement accuracy of the traditional open channel flow measurement equipment and facilities (hydraulic structure flow measurement, gate flow measurement, flow velocity meter flow measurement and the like) is difficult to be fully ensured, so that the method becomes a chronic disease which troubles local irrigation area management for a long time.
The flow measurement principle of the submersible electromagnetic flow meter can effectively solve the flow measurement precision problems of small flow and high flow velocity, but the conventional submersible electromagnetic flow meter mainly performs full pipe measurement on the flow of pipelines with certain specific shapes, is used for agricultural irrigation open channel flow measurement rarely, particularly has no example for performing non-full pipe flow measurement on small flow, high flow velocity and the use of the submersible electromagnetic flow meter, cannot realize wireless transmission of measurement data, and is difficult to acquire data when the installation position of a measurement device is far away.
Therefore, the problem that how to overcome the problems that on an agricultural irrigation open channel, the measurement accuracy is low aiming at small flow and high flow rate, the difficulty in non-full pipe flow measurement by using a submerged electromagnetic flowmeter is high, and the wireless transmission of measurement data cannot be carried out is a problem to be solved urgently by technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The application provides a full tub of metering device of non-has solved among the prior art on the agricultural irrigation open channel, to little flow, high velocity of flow, and measurement accuracy is low, uses submerged electromagnetic flowmeter to carry out the full tub of current surveying degree of difficulty of non-big and can't carry out wireless transmission's problem with measured data.
In order to solve the above technical problem, the present application provides a non-full pipe metering device applied to open channel small flow, high flow rate, including:
the submersible electromagnetic flow meter comprises a submersible electromagnetic flow meter, an ultrasonic liquid level detector, a wireless transmission module and a control end, wherein the ultrasonic liquid level detector is arranged at the top of a measuring pipe of the submersible electromagnetic flow meter, and the control end is respectively connected with the submersible electromagnetic flow meter, the ultrasonic liquid level detector and the wireless transmission module.
Preferably, the ultrasonic level detector is specifically a MGG/KL-F ultrasonic level detector.
Preferably, the control terminal comprises a signal converter.
Preferably, the signal converter is an MGG/KL-FXS signal converter.
Preferably, the method further comprises the following steps:
and the LED liquid crystal display screen is connected with the communication interface of the MGG/KL-FXS signal converter.
Preferably, the communication interface of the MGG/KL-FXS signal converter includes a 232 interface or an RS485 interface.
Preferably, the wireless transmission module comprises a GSM wireless transmission module and/or a GPRS wireless transmission module.
Compared with the prior art, the utility model provides a be applied to not full pipe metering device of open channel low discharge, high velocity of flow, including submarine electromagnetic flow meter, supersound liquid level detector, wireless transmission module and control end, supersound liquid level detector sets up in submarine electromagnetic flow meter's buret top of surveying, and the control end is connected with submarine electromagnetic flow meter, supersound liquid level detector and wireless transmission module respectively. Therefore, use this metering device, the control end can be according to the liquid level data that supersound liquid level detector gathered, the water velocity of dive electromagnetic flowmeter measurement and the cross sectional area of surveying buret calculate and draw discharge, also can realize at the low discharge, the open channel of high velocity of flow uses this metering device to carry out the measurement of non-full pipe discharge, and then can improve the measurement accuracy of non-full pipe, in addition, still be connected with wireless transmission module at the control end, can carry out wireless transmission through the relevant data that wireless transmission module will measure, to the metering device that installation distance is far away, data acquisition is easier.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments are briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without making any inventive changes.
Fig. 1 is a schematic structural view of a non-full pipe metering device applied to small flow and high flow rate in an open channel according to an embodiment of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings.
The core of this application is to provide a be applied to not full pipe metering device of open channel low discharge, high velocity of flow, can solve among the prior art when water does not be full of the pipeline that awaits measuring completely, measure the problem that the accuracy is low and can't carry out wireless transmission with measured data.
Fig. 1 is a schematic structural view of a non-full pipe metering device applied to small flow and high flow rate in an open channel according to an embodiment of the present invention, as shown in fig. 1, the device includes:
submarine power electromagnetic flowmeter 1, supersound liquid level detector 2, wireless transmission module 3 and control end 4, supersound liquid level detector 2 sets up in submarine power electromagnetic flowmeter 1's survey buret top, and control end 4 is connected with dive electromagnetic flowmeter 1, supersound liquid level detector 2 and wireless transmission module 3 respectively.
Specifically, the top of the measuring pipe of the submersible electromagnetic flowmeter 1 is provided with an ultrasonic liquid level detector 2, and liquid level data in the measuring pipe of the submersible electromagnetic flowmeter 1 can be measured by using the ultrasonic liquid level detector 2; as a preferred embodiment, the ultrasonic level detector 2 may be an MGG/KL-F ultrasonic level detector. In practical applications, the ultrasonic level detector 2 is substantially isolated from the liquid in the measuring tube. Utilize dive electromagnetic flowmeter 1 can measure the water speed of surveying the buret of flowing through, control end 4 is connected with dive electromagnetic flowmeter 1, supersound liquid level detector 2 and wireless transmission module 3 respectively, can calculate according to the water level data that supersound liquid level detector gathered, the water speed that dive electromagnetic flowmeter measured and the cross sectional area of surveying the buret and reachs the discharge of surveying the buret. During actual measurement, the water speed and the cross-sectional area of the measuring tube are generally fixed values, and after the liquid level height in the measuring tube is determined, the water flow of a non-full tube can be calculated. When the flow rate of the liquid in the measuring pipe is more than 0.3m/s, the measuring accuracy can reach +/-1% FS generally. Generally, the measurement accuracy is independent of the medium fluidity and other properties of the medium such as pressure, temperature, viscosity, density, consistency, conductivity, and contamination of the electrodes. The wireless transmission module 3 can be used for wirelessly transmitting relevant data (liquid level data, water speed, cross-sectional area and water flow), and preferably, the wireless transmission module can be a GSM wireless transmission module and/or a GPRS wireless transmission module.
The electromagnetic flowmeter is manufactured according to Faraday's law of electromagnetic induction, and the measurement principle is as follows: when the conductive measured medium flows perpendicular to the magnetic force line, an induced potential E is generated in the direction perpendicular to the medium flow and the magnetic force linexIt is in direct proportion to the speed of the measured medium moving in the magnetic field, and the relation is as follows:
Ex＝K×B×D×v
wherein K represents an instrument constant; b represents magnetic induction intensity; d represents the electrode distance, namely the diameter of the measuring tube, and is the length of the conductor which vertically cuts the magnetic force line; v is the speed of the measured medium moving in the magnetic field.
The utility model provides a be applied to not full tub metering device of open channel low discharge, high velocity of flow, including submarine electromagnetic flowmeter, supersound liquid level detector, wireless transmission module and control end, supersound liquid level detector sets up in submarine electromagnetic flowmeter's survey buret top, and the control end is connected with submarine electromagnetic flowmeter, supersound liquid level detector and wireless transmission module respectively. Therefore, use this metering device, the control end can be according to the liquid level data that supersound liquid level detector gathered, the water velocity of dive electromagnetic flowmeter measurement and the cross sectional area of surveying buret calculate and draw discharge, also can realize at the low discharge, the open channel of high velocity of flow uses this metering device to carry out the measurement of non-full pipe discharge, and then can improve the measurement accuracy of non-full pipe, in addition, still be connected with wireless transmission module at the control end, can carry out wireless transmission through the relevant data that wireless transmission module will measure, to the metering device that installation distance is far away, data acquisition is easier.
For the convenience of observation, on the basis of the above embodiment, as a preferred implementation, the method further includes:
and the LED liquid crystal display screen is connected with the communication interface of the MGG/KL-FXS signal converter.
In practical applications, the control terminal 4 is preferably provided with a signal converter. The liquid level data, the water speed and the cross-sectional area can be subjected to signal conversion, and a current signal or a pulse signal can be output. Preferably, the signal converter can adopt an MGG/KL-FXS signal converter. The MGG/KL-FXS signal converter is a signal converter which is specially matched with the submersible electromagnetic flowmeter 1 and is provided with a microprocessor, liquid level data, water speed and section area can be sent to the converter, flow can be calculated, and preferably, a communication interface of the MGG/KL-FXS signal converter can be a 232 interface or an RS485 interface.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice in the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.
Claims (7)
1. A non-full pipe metering device applied to small flow and high flow rate of an open channel is characterized by comprising:
the submersible electromagnetic flow meter comprises a submersible electromagnetic flow meter, an ultrasonic liquid level detector, a wireless transmission module and a control end, wherein the ultrasonic liquid level detector is arranged at the top of a measuring pipe of the submersible electromagnetic flow meter, and the control end is respectively connected with the submersible electromagnetic flow meter, the ultrasonic liquid level detector and the wireless transmission module.
2. The apparatus of claim 1, wherein the ultrasonic level detector is embodied as a MGG/KL-F ultrasonic level detector.
3. The apparatus of claim 1 wherein the control end comprises a signal converter.
4. The apparatus of claim 3 applied to an open channel low flow, high flow rate non-full pipe meter wherein the signal converter is a MGG/KL-FXS signal converter.
5. The apparatus of claim 4 applied to an open channel low flow, high flow rate, non-full pipe meter, further comprising:
and the LED liquid crystal display screen is connected with the communication interface of the MGG/KL-FXS signal converter.
6. The device of claim 5, wherein the communication interface of the MGG/KL-FXS signal converter comprises a 232 interface or an RS485 interface.
7. The apparatus according to any one of claims 1 to 6, wherein the wireless transmission module comprises a GSM wireless transmission module and/or a GPRS wireless transmission module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920914942.9U CN209857977U (en) | 2019-06-18 | 2019-06-18 | Be applied to not full pipe metering device of open channel low discharge, high velocity of flow |
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| CN201920914942.9U CN209857977U (en) | 2019-06-18 | 2019-06-18 | Be applied to not full pipe metering device of open channel low discharge, high velocity of flow |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503934A (en) * | 2021-07-26 | 2021-10-15 | 湖北创天联航工程技术有限公司 | Electromagnetic flowmeter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113503934A (en) * | 2021-07-26 | 2021-10-15 | 湖北创天联航工程技术有限公司 | Electromagnetic flowmeter |
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