Liquid level measurement system for float bowl of hydraulic power floating type ship elevator

Abstract

The invention relates to a liquid level measurement system for a float bowl of a hydraulic power floating type ship elevator. The liquid level measurement system comprises a plane baffle board, a floating ball baffle board and two laser ranging sensors, wherein the plane baffle board is arranged at the top of the float bowl in a shaft; the floating ball baffle board floats on the liquid level in the float bowl; the two laser ranging sensors are arranged above the plane baffle board and the floating ball baffle board through a set of installation bracket, the laser transmitting end and laser receiving end of one ranging sensor are both vertically toward the reflecting plane of the plane baffle board so as to measure the position of the float bowl; and the laser transmitting end and the laser receiving end of the other laser ranging sensor are both vertically toward the reflection plane of the floating ball baffle board so as to measure the water level elevation in the float bowl. In the invention, Based on the actual condition and special requirement of water level measurement for the float bowl of the hydraulic power floating type ship elevator, the laser ranging sensors and the floating ball baffle board which are used for position measurement traditionally are combined, thus realizing the purpose of accurately measuring the water depth in the float bowl of the hydraulic power floating type ship elevator, and having the advantages of high liquid level measurement accuracy, convenience in field installation of equipment and the like.

Description

technical field [0001] The invention relates to a measurement system of a ship lift, in particular to a liquid level measurement system in a buoy of a hydraulic floating type ship lift. Background technique [0002] Compared with the ship lock, the ship lift has the characteristics of quickness, smoothness, frequent operation, water saving for power generation, etc., and is especially suitable for high dam navigation. Therefore, after the country vigorously develops hydropower construction and builds a large number of power station dams, in order to maintain the smooth flow of inland waterway transportation and allow ships to cross the power station dam barrier, ship lift navigation equipment has become an important choice to solve high dam navigation. Ship lifts are divided into two types: vertical type and inclined plane type according to the line of operation of the ship-bearing compartment. The hydraulic floating (hydraulic driven) vertical ship lift is a safe, high-spe...

AI Technical Summary

Problems solved by technology

Due to the large vertical running distance of the balance weight buoy of the hydraulic floating ship lift, the small distance between the buoy and the buoy well, the submersion of water outside the buoy, the movable pulley and other equipment on the top of the buoy, and the high accuracy of water depth measurement in the buoy, the existing The liquid level measurement system exposes the following deficiencies: 1) Static pressure (or differential pressure) liquid level gauges, float type liquid level gauges, capacitive liquid level gauges, magnetic flap liquid level gauges and other systems are all contact measurement systems , there are cables that need to be led out to the signal acquisition equipment on the buoy well, and the processing of the cables cannot be reasonably solved; 2) The measurement accuracy of the float level gauge and the magnetic flap level gauge system cannot meet the requirements; 3) Although the ultrasonic liquid level gauge The position meter measurement system uses non-contact measurement, but it has measurement blind spots and is more expensive

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