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Pumping device comprising two suction inlet holes with application to a subhorizontal drain hole
Pumping device comprising two suction inlet holes with application to a subhorizontal drain hole
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机译:包括两个抽吸入口孔的泵装置,该抽吸入口孔应用于水平下排水孔
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摘要
The present invention relates to a pumping device comprising two suction inlet holes spaced a predetermined distance apart by an extension tube. In a variant, the pumping device comprises two pump barrels cooperating each with the two inlet holes. In another variant, the pumping device comprises a pump barrel and control means for controlling the flow rates of the effluents coming from the two inlet holes. The pumping device is used in a subhorizontal drain hole.
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