Liquid level control device for percolate inclined pipe collecting well of refuse landfill

Abstract

The invention discloses a liquid level control device for a percolate inclined pipe collecting well of a refuse landfill, and belongs to the field of percolate collecting wells of refuse landfills. The liquid level control device includes a refuse landfill, an inclined pipe, a percolate collecting well, a submersible pump, a static pressure type liquid level detector, and a submersible pump control box; the percolate collecting well is arranged above the refuse landfill; the inclined pipe communicates the bottom of the percolate collecting well and the inner part of the refuse landfill; the submersible pump and a detection probe of the static pressure type liquid level detector are arranged on the bottom of the inclined pipe; the static pressure type liquid level detector is connected to the detection probe of the static pressure type liquid level detector; and the submersible pump control box is connected to the submersible pump. The submersible pump and the detection probe are arranged on the bottom of the inclined pipe, which can discharge water gathered in the percolate collecting well and the inclined pipe, and in this way, the water content of biogas generated in the refuse landfill is low, and the power generation efficiency of a back-end biogas power generation system can be improved; and meanwhile, the start-stop frequency of the submersible pump is greatly decreased, and the service life of the submersible pump is prolonged.

Description

technical field [0001] The invention relates to a device for liquid level control of a leachate inclined pipe collection well of a landfill site, and belongs to the field of leachate collection wells of a landfill site. Background technique [0002] At present, the water collection volume of the leachate collection well in the landfill is about 1 cubic meter, and the collection well pipeline is a 30-meter-long inclined pipe with a volume of about 15 cubic meters. The automatic drainage measures mainly use a float level detector, which controls the automatic start and stop of the submersible pump through the float installed in the leachate collection well. Due to the limitations of the installation of the float level gauge, it can only measure the liquid level in the leachate collection well, and a large amount of accumulated water in the inclined pipe cannot be discharged, and the drainage effect is not ideal. This will lead to a high water content in the biogas generated b...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a device for liquid level control of leachate inclined tube collection wells in landfills, which solves the problems currently used in landfill leachate inclined tube collection wells. The structure and equipment used are not ideal, resulting in poor drainage effect and frequent start-up of submersible pumps affecting the service life.

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