Water level elevation self-control full-automatic water pumping equipment

Abstract

The invention relates to water level elevation self-control full-automatic water pumping equipment. The water level elevation self-control full-automatic water pumping equipment comprises a control box placed on the ground. The control box is close to a well mouth of a water well. A water pumping device and a water level monitoring device are connected to the control box. The water pumping devicecomprises a drain pipe extending into the water well, and a water pump is fixedly arranged at the bottom of the drain pipe. The water level monitoring device comprises a heavy hammer limiting switch arranged at the top of the water well, a measuring rope is connected to the bottom of the heavy hammer limiting switch, and a balancing weight capable of floating on the water surface is arranged at the bottom of the measuring rope. An automatic water pumping circuit for controlling the water pump to work by pushing the balancing weight to control on and off of the heavy hammer limiting switch through buoyancy of water in the water well is arranged between the heavy hammer limiting switch and the water pump. The water level elevation self-control full-automatic water pumping equipment has the effects of accurately controlling the water level in the water well and reducing idling of the water pump under the condition of less water.

Description

technical field [0001] The invention relates to the technical field of subway drainage engineering, in particular to a fully automatic pumping equipment with automatic control of water level and elevation. Background technique [0002] At present, in the process of tunnel construction, especially in subway underground excavation tunnel projects, the stability of the surrounding rock is often poor, and the sand layer is rich in water. During the mining method construction process, the amount of groundwater is large, and water and sand gushing may occur on the face of the tunnel, making construction impossible and seriously affecting the construction period. [0003] The tunnel drainage system is an important link in the process of tunnel construction, normal use and safe operation. During the construction of tunnels and underground projects at home and abroad, in addition to the water generated during the construction process, groundwater and green seepage are often encounte...

AI Technical Summary

Problems solved by technology

[0004] When pumping water, put the water pump into the well so that the water in the well is pumped out. Due to the inaccurate control of the water level, when the water in the well is lower than the water pump, the water pump will continue to work, which will easily cause damage to the water pump.

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