A single-well single-control pumping and irrigation integrated system and its control method

Abstract

The invention discloses a single-well single-control pumping and injection integrated system and a control method thereof. The single-well single-control pumping and injection integrated system comprises at least one precipitation well, wherein water in the precipitation well is pumped to a water collecting tank, the water collecting tank is connected with a pressure regulation system through a pipe, and the pressure regulation system is connected with a return pump water collecting header pipe through a pressure pipe. At least one recharge well is connected to the return pump water collecting header pipe, and a pressure reduction system is arranged on the pipe between each recharge well and the pressure pipe. The single-well single-control pumping and injection integrated system integrates precipitation and recharge, can individually control the recharge pressure of each recharge well, can further play the maximum recharge capacity of each recharge well, avoids the 'negative effect' brought by the 'cask effect', effectively decreases the number of the recharge wells under the condition of the same recharge amount, reduces the cost and saves working space.

Description

technical field [0001] The invention relates to foundation pit dewatering and recharging equipment, in particular to a single-well single-control pumping and irrigation integrated system and a control method thereof. Background technique [0002] Recharging is an effective measure to control the groundwater level, or prevent land subsidence and groundwater waste due to project precipitation. The commonly used recharge methods in engineering are: surface infiltration method and well point injection method. The ground infiltration method is seldom used due to the limitation of the nature of the stratum. Most of the well point injection methods are pressurized injection method, but the existing pressurized injection equipment mainly has the following deficiencies: [0003] 1. The method of "one-to-one correspondence" between pressurization equipment and reinjection wells is too high in cost and takes up a lot of space, so it is seldom used. [0004] 2. Use pressurization equ...

AI Technical Summary

Problems solved by technology

This method is widely used, but this kind of equipment cannot control the pressure of each reinjection well independently, and it is easy to produce "barrel effect", that is, multiple reinjection wells should choose the minimum pressure reinjection, so that under the same reinjection volume The number of reinjection wells must be increased, with consequent increases in cost and space

[0005] 3. Most of them use manual recording of recharge data, which has problems of lag and poor timeliness

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