Water level measuring device and water pumping test system

Abstract

The invention provides a water level measuring device and a water pumping test system, and relates to the field of hydrological survey. The water level measuring device comprises a first pipe body anda second pipe body sleeved outside the first pipe body, the first pipe body is internally provided with a buoy which floats on the water surface and can move in the axial direction of the first pipebody, the buoy is provided with a reflecting plate, a measuring mechanism corresponding to the reflecting plate is arranged at one end of the first pipe body, and through holes are correspondingly formed in the side wall of the first pipe body and the side wall of the second pipe body at intervals; The moving path of the reflecting plate and the buoy is restrained through a double-sleeve structure, the buoy can rise and fall in real time along with the liquid level, meanwhile disturbance of well wall leakage to the buoy is avoided, and the timeliness and the precision in the water level measurement process are improved.

Description

technical field [0001] The disclosure relates to the field of hydrological survey, in particular to a water level measuring device and a pumping test system. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Hydrogeological work often uses pumping tests to obtain hydrogeological parameters such as permeability coefficient. The pumping test is to pump water from the well with a pump, and measure the water level drawdown S and flow Q in the well every 1 minute, 3 minutes, etc. (the specification has fixed requirements) while pumping water. The permeability coefficient can be obtained by substituting the drawdown S and flow Q into the normative formula. [0004] The inventor found that the existing water level measurement tool in the current pumping test is a measuring rope, and the measuring rope is a tape measure with a scale, with electr...

AI Technical Summary

Problems solved by technology

The disadvantages of the traditional measuring rope are as follows: (1) The measuring rope needs to be retracted manually, and the water level changes rapidly in the early stage of the test. After the time is reached, the water level at this moment cannot be measured in time; (2) The seepage on the well wall touches the probe, which will make the The buzzer beeps, and the wrong data is obtained; (3) The measuring rope retractor and the data recorder need to cooperate well, which requires high staff; (4) After the data is recorded, it needs to be input into the computer for analysis. For a long time, the efficiency is low and error-prone; (5) Field data records are wrong and cannot be identified in time

In addition, there is currently no complete automatic working system for the pumping test. It is difficult to meet the needs of real-time display and timely processing of on-site data only by relying on manual record storage and then going to the laboratory for corresponding analysis.

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