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Flow metering device and metering method, and measurement and control integrated gate system

A technology of flow measurement and flow, which is applied in the direction of measuring flow/mass flow, measuring device, liquid/fluid solid measurement, etc., and can solve problems such as deviation of flow measurement results

Active Publication Date: 2018-11-09
中国航天系统科学与工程研究院
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AI Technical Summary

Problems solved by technology

In this method, the cross section of the water is directly determined by the opening of the gate and the width of the measuring water tank. Due to the influence of impurities such as silt at the bottom of the measuring water tank, there is a large deviation in the flow measurement results directly.

Method used

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  • Flow metering device and metering method, and measurement and control integrated gate system
  • Flow metering device and metering method, and measurement and control integrated gate system
  • Flow metering device and metering method, and measurement and control integrated gate system

Examples

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Embodiment 1

[0147] Build a standard water storage tank, install the corresponding specification test water tank 2 and match the corresponding gate 6, deploy the test water source and pour it into the water storage tank, after a certain amount of silt is deposited on the bottom of the water tank 2 to be tested, open the gate 6 to the height h, where the height h is greater than the silt height. Measure the input water volume with a standard electromagnetic flowmeter, measure the outflow water volume with a 800×800mm water tank, and measure the water depth of the pool with a static pressure water level gauge. The water measuring tank is equipped with two sets of ultrasonic transducers, which are installed diagonally in the liquid measuring tank. 2 inner frame depth position), and the other group is arranged on the inner wall surface of the opposite side wall near the other opening end of the liquid measuring tank (0.8 times the depth position of the inner frame of the liquid measuring tank ...

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PUM

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Abstract

The invention relates to a flow metering device and metering method, and a measurement and control integrated gate system. The device includes a liquid measuring box, an ultrasonic transducer and sonar; the ultrasonic transducer and the sonar are arranged on the liquid measuring box; the ultrasonic transducer is used for obtaining the flow velocity of a liquid; the sonar is used for obtaining thesectional area of liquid flow and flow revision coefficients; and the liquid flow can be obtained according to the flow velocity of the liquid, the sectional area of the liquid flow and the flow revision coefficients. The device can optimize the layout of the ultrasonic transducer, increase sonar measurement sectional areas and the flow revision coefficients, and perform correction on measuring results of the ultrasonic transducer on the basis of conventional measurement and control integrated gate water measuring tanks, and therefore, the precision of flow metering can be significantly enhanced, and the precision can reach up to 99%; and the system can mitigate the work intensity of water distributors and reduce water distribution disputes, and therefore, water distribution management level can be enhanced, water resources in irrigation areas can be fully utilized, and irrigation benefits in the irrigation areas can be increased.

Description

technical field [0001] The invention relates to a flow metering device, a metering method and a measurement and control integrated gate system, belonging to the technical field of flow metering and measurement and control. Background technique [0002] With the introduction of the concept of automation in irrigation areas, higher requirements have been put forward for water monitoring and control. Currently, the open channel water measurement facilities currently used mainly include two types. And flowmeter, at present, the measurement effect of simple water measurement facilities is average, mainly limited by open channel conditions, equipment accuracy, management methods, etc., and there is no better way to improve it at present; one category is integrated measurement and control gates, including integrated and combination. [0003] The measurement and control integrated gate system mainly applies modern measurement and control technology, computer network technology and ...

Claims

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Application Information

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IPC IPC(8): G01F1/66E02B7/20
CPCE02B7/20G01F1/66
Inventor 薛惠锋
Owner 中国航天系统科学与工程研究院
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