Circular inverted filter well mouth device with two purposes of recharging and pumping

Abstract

The invention relates to a well mouth device with two purposes of self-seepage type groundwater recharging and pumping, and belongs to the technical field of water retention and crossing with water. The well mouth device comprises a recharging well lid and a pumping device. The well mouth device is characterized in that the recharging well lid is composed of a well opening head cover, a pumping device fixing ring beam and a geotextile inverted filter layer. The overall well lid is shaped like a hollow-core bottomless cylinder; a circular orifice surrounded by the pumping device fixing ring beam is formed in the middle of the top face of the upper portion of the well mouth head cover; circular water inlets are formed in the top face and the side face of the upper portion of the well mouth head cover respectively; the lower portion of the well mouth head cover adopts a watertight body; the geotextile inverted filter layer is arranged on the outer side of the well mouth and is consistent with the shape of the well mouth. The pumping device is composed of a water suction pump, a pump water pipe, a pump support and a pump valve. The water suction pump usually adopts a submersible pump; the pump support is a steel frame and is fixed on the pumping device fixing ring beam. By means of the well mouth device, organic combination of groundwater recharging and pumping is achieved, and the well mouth device has the advantages of being large in quantity of water recharge and capable of filtering particles in water, preventing silt, resisting rush and preventing low water level sewage recharging.

Description

technical field [0001] The invention relates to a dual-purpose wellhead device with dual functions of self-seeping groundwater recharge and groundwater pumping, and belongs to the technical field of crossing water retention and water use. Background technique [0002] With the rapid development of social economy, the contradiction between supply and demand of water resources has become increasingly prominent. Due to the over-exploitation of groundwater, many provinces have formed a large area of ​​groundwater level decline funnel centered on the city, and many environmental geological problems have also emerged. In the face of the above problems, artificial groundwater recharge is a more active and effective strategy and an important technical means to maintain the balance of groundwater recharge. At the same time, in the dry season, groundwater needs to be pumped to make up for the shortage of surface water resources. At present, in areas where groundwater is mainly artif...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the above-mentioned bottleneck problem, the present invention provides a dual-purpose device for self-seepage reverse filtration, refilling and pumping water. Good effect of controlling settlement etc.

Images