CN218349559U - Non-contact channel flow measurement and control system - Google Patents
Non-contact channel flow measurement and control system Download PDFInfo
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- CN218349559U CN218349559U CN202123027057.5U CN202123027057U CN218349559U CN 218349559 U CN218349559 U CN 218349559U CN 202123027057 U CN202123027057 U CN 202123027057U CN 218349559 U CN218349559 U CN 218349559U
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Abstract
The utility model discloses a non-contact channel flow measurement and control system belongs to rivers flow measurement technical field, constitute including controller, sensor, power module, GPS orientation module and communication module, the controller is connected with sensor, power module, GPS orientation module and communication module, and the controller is connected with the remote management terminal through communication module, the sensor includes ultrasonic wave level sensor and velocity sensor, and ultrasonic wave level sensor and velocity sensor are used for realizing the measurement of the water level of channel and the velocity of flow, and its beneficial effect lies in: the utility model discloses an use the microcomputer technology as the core, integrated internet of things, sensor technology, database management and intelligent monitoring technology to on the basis of velocity of flow-water level operation method and ultrasonic wave time difference method, realize the automatic control of channel flow, degree of accuracy and precision are high, and measurement accuracy, stability are good, dependable performance, compact structure are reasonable, environmental suitability is strong, use cost is low.
Description
Technical Field
The utility model belongs to the technical field of the rivers flow measurement, be applicable to the flow of measuring channel, sewage factory, enterprise and public institution's sewage discharge port and city sewer among the irrigation and water conservancy, concretely relates to non-contact channel flow measurement and control system.
Background
At present, irrigation district channels all utilize existing hydraulic structures on the channels to carry out water flow measurement, but the measurement method needs to be carried out by means of the existing hydraulic structures, is not suitable for channels with severe environments and lacking hydraulic structures, and is low in applicability, and the measurement method has the problems of low measurement accuracy and poor stability.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the problem that exists among the above-mentioned prior art, a non-contact channel flow measurement and control system is provided, through using the microcomputer technology as the core, integrated internet of things, sensor technology, database management and intelligent monitoring technology, on the basis of velocity of flow-water level operation method and ultrasonic wave time difference method, realize the automatic control of channel flow, handle through on-the-spot calibration and data correction, degree of accuracy and precision are high, the measurement is accurate, stability is good, the dependable performance, compact structure is reasonable, environmental suitability is strong.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides a non-contact channel flow measurement and control system, includes that controller, sensor, power module, GPS orientation module and communication module constitute, the controller is connected with sensor, power module, GPS orientation module and communication module, and the controller is connected with remote management terminal through communication module, the sensor includes ultrasonic wave level sensor and velocity of flow sensor, and ultrasonic wave level sensor and velocity of flow sensor are used for realizing the measurement of the water level and the velocity of flow of channel.
The ultrasonic liquid level sensor is fixedly arranged above the channel through a fixing rod.
The number of the flow velocity sensors is a plurality of, and the flow velocity sensors are fixedly arranged on the side wall of the channel through mounting rods.
The power module adopts a solar storage battery or municipal power.
And the remote management terminal is a remote computer management platform and is used for summarizing and analyzing the channel water level and flow rate information transmitted by the controller.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model discloses an use the microcomputer technology as the core, the internet of things is integrated, sensor technology, database management and intelligent monitoring technology, use velocity of flow-water level arithmetic and ultrasonic wave time difference method as the basis, realize the automatic control of channel flow, through on-the-spot calibration and data correction processing, measuring accuracy and precision are high, the measurement is accurate, good stability, the dependable performance, compact structure is reasonable, environmental suitability is strong, be applicable to sewage and have the clear water of bubble or impurity, do not receive the interference of aquatic suspended solid, be difficult for receiving the environmental impact, low in use cost, show and improved the water utilities department automated management level.
Drawings
Fig. 1 is a schematic diagram of a system architecture according to an embodiment of the present invention.
Fig. 2 is an installation schematic diagram of the ultrasonic liquid level sensor and the flow velocity sensor in the embodiment of the present invention.
Fig. 3 is a schematic diagram of the flow measurement principle of the ultrasonic multi-channel time difference method in the embodiment of the present invention.
Fig. 4 is a schematic view of the flow measurement principle of the ultrasonic single-track time difference method in the embodiment of the present invention.
Fig. 5 shows a detailed measurement principle of the ultrasonic time difference multichannel flowmeter according to the embodiment of the present invention.
Reference numbers and designations: the device comprises a fixing rod 1, an ultrasonic liquid level sensor 2, a flow velocity sensor 3, an installation rod 4, a channel 5, a highest water level 6 and an actual flow velocity measuring range 7.
Detailed Description
The invention will be described in detail with reference to the drawings and specific embodiments, wherein the exemplary embodiments and descriptions are provided to explain the invention, but not to limit the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
As shown in fig. 1-2, a non-contact channel flow measurement and control system, including controller, sensor, storage module, power module, GPS orientation module and communication module, the controller is connected with sensor, storage module, power module, GPS orientation module and communication module, power module is connected with controller, sensor, storage module, GPS orientation module and communication module, the controller is connected with remote management terminal through communication module, remote management terminal is remote computer management platform for the channel water level and the velocity of flow information that the realization transmitted the controller gather the analysis;
the sensor comprises an ultrasonic liquid level sensor 2 and a flow velocity sensor 4, wherein the ultrasonic liquid level sensor 2 is fixedly arranged above the channel 5 through a fixed rod 1 and a bolt, and the ultrasonic liquid level sensor 2 is used for realizing water level measurement of the channel 5; the number of flow velocity sensor 3 is a plurality of, and a plurality of flow velocity sensor 3 is through installation pole 4 and bolt fixed mounting on the lateral wall of channel 5, and flow velocity sensor 3 is used for realizing the velocity of flow measurement of channel 5.
The power module adopts a solar storage battery or municipal power supply, supplies energy by adopting the solar storage battery, has no pollution, small investment and low operation cost, can be applied to rural areas, gullies and remote areas where traffic or electric power is not reached, has strong adaptability and is convenient to install and maintain.
For better understanding of the technical solution of the present invention, the following descriptions are specially made:
1. the utility model discloses use velocity of flow-water level arithmetic and ultrasonic wave time difference method as the basis, adopt the actual water level that microprocessor technique measured according to the sensor and the channel geometric dimensions of having put into, the side slope coefficient, the channel precision, hydraulic ramp, velocity of flow vertical plane correction coefficient, according to the width of channel and measurement accuracy's requirement, adopt the mathematical model of single probe method or the open channel of many probes method current surveying and calculate the flow of channel, thereby provide accurate water record, through measuring water cross section area (actually water cross section area is converted through the measured water level and is obtained) with the sectional flow velocity and try to get the flow, and the precision is high, and do not receive the influence of low reaches top support water.
And the traditional water level method realizes metering by measuring the upstream (or upstream and downstream) water level of a water measuring building and converting the upstream (or upstream and downstream) water level into flow through an empirical formula or an experimental curve. Therefore, the water level method flowmeter needs to build a water measuring building, the precision is not high, and when the water head difference of the channel along the way is small, the water measuring building can generate water head loss to influence the channel to discharge water; on the other hand, when a water retaining structure such as a gate is installed in the vicinity of the downstream of the water measuring structure, submerged outflow is formed in the water measuring structure, and the measurement accuracy is greatly lowered.
The water level method is generally applied to channels with smaller width or smaller flow, when the width of the channel exceeds 1 meter, the construction cost of a water measuring building is increased greatly, and the accuracy of measuring the flow by using the empirical relation curve of the water level and the flow of the channel without the water measuring building is low.
TABLE 1 channel flow measurement characteristic comparison table by flow velocity area method and water level method
2. As shown in fig. 3-5, the average flow velocity of the cross section is calculated as follows:
average flow velocity of cross section = (V) 1 *A 1 +V 2 *A 2 +…V i *A i +…+V n *A n )/A
Wherein: v i Average linear flow rate, A, measured for the ith flow sensor i Is the ith division area.
From the above formula, the flow velocity precision of the flow measuring range by the ultrasonic time difference method is very high, and the calculation model generates errors when the flow velocity is converted into the overall average flow velocity of the cross section, so the actual cross section flow measurement precision is mainly determined by the precision of the conversion model and the formula and the calibration precision. The utility model discloses an ultrasonic wave time difference method, it is lower to the requirement of quality of water in the practical application, there is the environment of impurity or bubble in adaptable muddy water and the aquatic, and all higher to the measurement accuracy of wide shallow channel, narrow dark channel etc. within 1%, and the reliability and the security of this system are all higher.
It introduces in detail above the technical scheme that the embodiment of the present invention provided, it is right that this paper has used specific individual example the utility model discloses the principle and the embodiment of embodiment have explained, and the explanation of above embodiment only is applicable to help understanding the utility model discloses the principle of embodiment.
Claims (5)
1. The utility model provides a non-contact channel flow measurement and control system which characterized in that: constitute including controller, sensor, power module, GPS orientation module and communication module, the controller is connected with sensor, power module, GPS orientation module and communication module, and the controller is connected with remote management terminal through communication module, the sensor includes ultrasonic wave level sensor and velocity sensor, and ultrasonic wave level sensor and velocity sensor are used for realizing the water level of channel and the measurement of velocity of flow.
2. The non-contact channel flow measurement and control system of claim 1, wherein: the ultrasonic liquid level sensor is fixedly arranged above the channel through a fixing rod.
3. The non-contact channel flow measurement and control system of claim 1, wherein: the number of the flow velocity sensors is a plurality of, and the flow velocity sensors are fixedly arranged on the side wall of the channel through mounting rods.
4. The non-contact channel flow measurement and control system of claim 1, wherein: the power module adopts a solar storage battery or municipal power.
5. The non-contact channel flow measurement and control system of claim 1, wherein: and the remote management terminal is a remote computer management platform and is used for summarizing and analyzing the channel water level and flow rate information transmitted by the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123027057.5U CN218349559U (en) | 2021-11-30 | 2021-11-30 | Non-contact channel flow measurement and control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123027057.5U CN218349559U (en) | 2021-11-30 | 2021-11-30 | Non-contact channel flow measurement and control system |
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| Publication Number | Publication Date |
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| CN218349559U true CN218349559U (en) | 2023-01-20 |
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| CN202123027057.5U Active CN218349559U (en) | 2021-11-30 | 2021-11-30 | Non-contact channel flow measurement and control system |
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