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Intellectualized channel flowmeter possessing servo tracking system and measuring method thereof

A tracking system and flow meter technology, applied in the channel water measuring facility and its measurement field, can solve the problems of inability to work stably for a long time, a large flow measurement range, and a short straight line segment, and achieve low equipment and construction costs and a large measurement flow range. , the effect of short straight line segments

Inactive Publication Date: 2006-10-25
汪平
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AI Technical Summary

Problems solved by technology

[0019] The purpose of the present invention is to provide an intelligent channel flowmeter with a servo tracking system and its measurement method to solve the problem that the channel flow measurement cannot work stably for a long time due to the accumulation, entanglement, and inconvenient cleaning of floating objects in the channel due to the fixed installation of the speedometer. ;Solve the technical problem of improving the flow measurement accuracy of the channel flowmeter and make the channel large flow automatic and long-term measurement; solve the requirement that the straight line section of the measurement channel is short, the flow measurement range is large, and the measurement is not free from floating objects and sediment in the water body , the influence of air bubbles and large changes in water level, and the technical problem that the flow sensor does not produce resistance to the channel

Method used

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  • Intellectualized channel flowmeter possessing servo tracking system and measuring method thereof
  • Intellectualized channel flowmeter possessing servo tracking system and measuring method thereof
  • Intellectualized channel flowmeter possessing servo tracking system and measuring method thereof

Examples

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Effect test

Embodiment 1

[0034] Embodiment 1: The telescopic intelligent channel flowmeter with servo tracking system of the present invention is shown in Figures 1 and 2:

[0035] The water level meter 1 is connected to the converter 4 by the lead-out cable 7, and the displacement detector 5 is connected near the position of the speedometer 2. The speedometer 2 and the displacement detector 5 are fixed on the front end of the dynamic telescopic push rod 8 of the servo tracking actuator 3, Its servo tracking actuator is composed of a drive mechanism controlled by a servo tracking system connected to a telescopic push rod 8 , and the drive mechanism, converter and water level gauge of its servo tracking actuator are all fixed on the installation bridge 6 .

[0036] Water level meter 1, a primary instrument for measuring water level, what the present invention uses is the SEAGMASONIC type ultrasonic water level meter produced by Dalian Sigma Company, with a range of 5 meters and an output signal of DC4-2...

Embodiment 2

[0043] Embodiment 2, cantilever intelligent channel flowmeter with servo tracking system see image 3 :

[0044] The functions of the water level gauge 1, the velocity gauge 2, the converter 4, the displacement detector 5, and the mounting bridge 6 are the same as those in the first embodiment, only the structure of the servo tracking actuator has changed.

[0045] The servo tracking actuator 3 is a cantilever type. The cantilever push rod of the servo tracking actuator 3 is composed of a fixed rod 9, a main cantilever 10, an auxiliary cantilever 11 and two fulcrums 12, 13 on the installation bridge to form a hinged parallelogram. The cantilever 10 is pushed and connected by the driving mechanism of the servo tracking actuator. The two fulcrums of the driving mechanism of the servo tracking actuator are one on the main cantilever and one on the installation bridge. When the driving mechanism moves, it will promote the fixed rod driven by the hinged parallelogram to move up an...

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Abstract

An intelligent channel flowmeter with a servo tracking system and a measurement method thereof. A displacement detector is connected near the position of the speedometer, and the speedometer and the displacement detector are fixed at the front end of a push rod of a servo tracking actuator. The servo tracking actuator is composed of The driving mechanism controlled by the servo tracking system is composed of connected push rods, and the driving mechanism, converter and water level gauge of the servo tracking actuator are all fixed on the installation bridge. According to the actual water level measured by the water level gauge, the converter adjusts the speed gauge to a given value point under the measured water level through the servo tracking actuator to measure the speed, and feeds back the measurement signal to the converter, and the converter calculates the flow of the channel. Solve the problem that the channel flowmeter cannot work stably for a long time due to the accumulation and entanglement of floating objects in the channel; it is suitable for flow measurement of rectangular and trapezoidal channels such as reservoirs, river water conservancy projects, urban water supply, and farmland irrigation.

Description

technical field [0001] The invention relates to a channel water measuring facility and a measuring method thereof, in particular to a channel flowmeter and a measuring method thereof. Background technique [0002] Existing facilities for measuring water in canals can be roughly divided into three categories: water measuring weirs, water measuring tanks, and water measuring devices. [0003] 1. Measuring weirs and flumes: In channel flow measurement, commonly used water measuring weirs include triangular weirs, rectangular weirs, full-width weirs, and trapezoidal weirs, etc. Commonly used measuring flumes include Parshall flume and throatless section Measuring tanks, hydraulic measuring tanks and parabolic measuring tanks; foreign countries have trapezoidal measuring tanks and U-shaped cross-section measuring tanks. When the water body in the channel flows through the water measuring weir or the water measuring tank, due to the resistance of the weir and the tank, the water ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F3/00
Inventor 汪平
Owner 汪平
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