Well head device for both square reverse filtering recharging and water pumping

Abstract

The invention discloses a well head device for both self-permeable type underground water recharging and water pumping, and belongs to the technical field of water conservation and water consumption. The well head device comprises a recharging well lid and a water pumping device and is characterized in that the recharging well lid is composed of a well head top lid, a water pumping device fixing ring beam and a geotextile reverse filtering layer; the whole well lid is a hollow bottomless tetrahedral body; a square orifice surrounded by the water pumping device fixing ring beam is formed in the middle of the top face of the upper portion of the well head top lid; circular water inlets are formed in the top face and the side faces of the upper portion of the well head top lid; an impermeable body is arranged at the lower portion of the well head top lid; the geotextile reverse filtering layer is arranged on the outer side of the well lid and matched with the well lid in shape; the water pumping device is composed of a water pumping pump, a water pumping pipe, a water pump support and a water pump valve; the water pumping pump is a submerged pump ordinarily; the water pump support is a steel frame and is fixed to the water pumping device fixing ring beam. According to the well head device, underground water recharging and water pumping are organically combined, and the well head device has the advantages of being large in recharging amount and capable of filtering out granules in water, preventing silt, resisting impact 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...

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Problems solved by technology

[0008] In order to solve the above-mentioned bottleneck problem, the present invention provides a dual-purpose...

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