Wellhead magnetic type groundwater closed pumping and recharging device

Abstract

The invention discloses a wellhead magnetic type groundwater closed pumping and recharging device, which comprises a casing pipe, an outer valve body, an inner valve body, an upper gland, a lower gland, a water pipe, an aqueduct, an electromagnetic component, a closed ring, an air exhausting and water blocking valve, a check valve, and a submersible pump. According to the wellhead magnetic type groundwater closed pumping and recharging device, only an electromagnet is used for controlling a magnet block to adjust the closed ring up and down and close or open a water outlet hole to realize pumping of groundwater or recharging and replenishing of the groundwater, the wellhead magnetic type groundwater closed pumping and recharging device has the advantages that the principle is simple, electromagnetic regulation is realized, and the cost is saved; at the same time, the wellhead magnetic type groundwater closed pumpingand recharging device is completely closed and sealed during operation,and the groundwater pressuring recharging function can be realized; the wellhead magnetic type groundwater closed pumping and recharging device is small in overall design volume and placed above a wellhead, device maintenance is facilitated, and the service life of the wellhead magnetic type groundwater closed pumping and recharging device is prolonged; automatic air exhausting and sealing of airinside a deep well in the non-operating mode can be realized by using the air exhausting and water blocking valve; the wellhead magnetic type groundwater closed pumping and recharging device is suitable for recharging of a ground source heat pump system and water source recharging of a groundwater overdraft area, especially suitable for the recharging and exploitation of medium-deep groundwater,and has good application prospects.

Description

technical field [0001] The present invention relates to the technical field of groundwater engineering, and more specifically relates to a wellhead magnetic suction type groundwater closed pumping and irrigation device, which can be used for groundwater recharge and exploitation of a single well in the middle and deep layers, and at the same time, it can be connected with external power to realize pressurized recharge groundwater. Background technique [0002] It is an important technical means to use artificial recharge technology to replenish groundwater, improve the ecological environment of groundwater, and maintain the balance of groundwater recharge. Artificial groundwater recharge, especially for the natural recharge of middle and deep groundwater is difficult, and tube wells are usually used for groundwater recharge and replenishment. The mining of middle and deep groundwater often uses multiple aquifers. In order to prevent the impact of recharge water sources and ...

AI Technical Summary

Problems solved by technology

Only using a single well for medium-deep groundwater recharge instead of using the same well for groundwater exploitation will inevitably result in project waste and low utilization rate; at the same time, due to the pressure-bearing nature of medium-deep groundwater, the efficiency of purely using natural pressure for recharge is not high , therefore, recharging in the form of pressurization can be used when the recharging conditions permit, which requires a set of fixed-layer closed, pressurizable, high-efficiency utilization devices with dual functions of pumping and irrigation

The technical difficulty of this device is how to use the same device to switch between different modes of groundwater recharge and exploitation, and how to realize the closed and pressurized recharge of designated aquifers

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