Channel silt and flow measuring system

Abstract

The invention discloses a channel silt and flow measuring system. The channel silt and flow measuring system comprises a moving mechanism, a lifting mechanism and a sensor set; a fixing sleeve and a sliding sleeve are arranged on the two sides outside a shell in the moving mechanism, the fixing sleeve is fixedly connected with a steel cable, and the sliding sleeve is in sliding fit with the steelcable; a driving motor and a roller set in the lifting mechanism are arranged in the shell and are in connection transmission, one end of a lifting rope is wound on the roller set, and the other end of the lifting rope is connected with the sensor set; and a liquid level meter and an ultrasonic transducer in the sensor set are correspondingly arranged on a fish lead assembly, and the fish lead assembly is connected with the lifting rope. A measuring device is driven by the measuring device to perform transverse fixed-point displacement and transverse multi-point measurement without blockage; each sensor is always kept vertical to the water flow cross section under the action of lead fish and gravity, so that the sensors cannot deflect or be cheap due to the impact of water flow caused by inclination of a measuring machine, and the measuring precision is high and stable; and transparent ultrasonic waves are adopted as a flow velocity measurement mode, the precision is high, and the working efficiency is high.

Description

technical field [0001] The invention relates to a measurement system, in particular to a split channel silt and flow measurement system with a hidden protective structure. Background technique [0002] During the use of open channels, sedimentation causes dynamic changes in the cross-section, which directly restricts the accuracy and form of flow measurement. The most common measurement method is the vertical flow measurement method, that is, a steel cable is erected on both sides of the channel measurement section, the measuring instrument moves on the cable, and the vertical line measurement and control points are evenly arranged on the cable track, and the sag measurement device is dropped after reaching the measurement and control point. , measure the water level after touching the bottom, and when it rises to different liquid levels on the vertical line, it can stably measure and record the flow velocity and water level at the position, forming multiple measurement unit...

AI Technical Summary

Problems solved by technology

[0003] The commonly used measuring mechanism is that the measuring instrument is set on the traction cable and moves horizontally on the cable. Various sensors are installed in the measuring instrument, including liquid level sensor, flow rate sensor, etc. Since the water in the channel is flowing, the sensor During the measurement process, it is easy to be affected by the water flow, which will affect the measurement accuracy.

[0004] In addition, the vertical automatic measurement system is gradually emerging, and the degree of water conservancy information is also improving, but the ability to deal with complex measurement environments is still limited. Some measuring instruments are exposed to open environments for a long time, which may easily cause damage to their internal components. This has affected the quality and efficiency of hydrological survey work to a certain extent

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