Underground water recharge well for sponge city construction

Abstract

The invention discloses an underground water recharge well for sponge city construction. The underground water recharge well comprises a well body, the outer side wall of the well body is fixedly connected to a road surface, a gravel layer is fixedly connected to the outer side wall of the well body, a soil layer is fixedly connected to the outer side wall of the well body, the inner side wall of the top of the well body is fixedly connected to a filter screen, a sand layer is fixedly connected to the inner side wall of the top of the well body, an activated carbon adsorption plate is fixedly connected to the inner side wall of the top of the well body, and a mud guard is fixedly connected to the top of the inner side wall of the well body. According to the underground water recharge well, effective recharge of water inside the well body is realized through the work of a pressure releasing and recharging mechanism, when a baffle is opened, a sliding plate can slide to the top of an exhaust port, so that the exhaust port releases air pressure inside the well body, the pressure intensity inside the well body is in a balanced state, the situation that the well body bursts due to the fact that the air pressure inside the well body is too large is prevented, the well body is protected to a certain degree, and the service life of the well body is prolonged.

Description

technical field [0001] The invention relates to the technical field of recharge wells, in particular to a groundwater recharge well for sponge city construction. Background technique [0002] Recharge wells refer to wells that inject and dispose of corrosive or harmful liquids; generally, abandoned old oil wells are used to treat oily brine or raw sewage; the disadvantage is that it will pollute the groundwater and promote the slippage of the underground soil layer; With the continuous development of development and utilization, the number and water pumping volume of geothermal wells are increasing year by year, and some places have reached or even exceeded the water pumping limit limited by resource evaluation; a large amount of water pumping without recharging will inevitably cause the water level to continue to decline, and the service life of the well It will be reduced, which is not conducive to the sustainable development of geothermal energy; only pumping without irri...

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Problems solved by technology

[0005] However, the patent only achieves the pressure balance inside the reinjection well, and does not use the pressure to improve the recharge efficiency inside the reinjection well, and it is still unable to effectively clean the inside of the reinjection well, and it is likely that the inside of the reinjection well will be damaged. The situation of siltation leads to the decline of the recharge efficiency of the recharge well, so we propose a sponge city to build groundwater recharge wells to solve the above problems

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