Foundation pit engineering energy conservation and emission reduction water supply system and method

Abstract

The invention relates to a foundation pit engineering energy conservation and emission reduction water supply system and method. The foundation pit engineering energy conservation and emission reduction water supply system includes a foundation pit drainage pipe communicating with a foundation pit, a drainage pump is arranged on the foundation pit drainage pipe, the foundation pit drainage pipe communicates with a pre-sedimentation tank through a pre-sedimentation tank water inlet pipeline, the pre-sedimentation tank communicates with a clear water tank through a clear water tank water inlet pipe, the clear water tank communicates with a clear water tank water outlet pipe, and the clear water tank water outlet pipe is used for communicating with a water supply pipe of the water supply system; and the pre-sedimentation tank is internally provided with a water quality on-line monitoring instrument, a clear water tank feed pump is arranged on the clear water tank water inlet pipe, a frequency control pipeline pump and a check valve are arranged successively in the water out direction on the clear water tank water outlet pipe, and the water supply pipe of the water supply system is provided with a third valve. Leakage water in the foundation pit belongs to groundwater resources, the water quality is relatively good, through easy treatment, the water quality requirements for construction water such as mass concrete curing, surface scouring, vehicle washing before warehousing, spray cooling and water cooling can be met, and the action of lowering the engineering cost and energy conservation and emission reduction are achieved.

Description

technical field [0001] The invention belongs to the technical field of discharge reduction and water supply for foundation pit engineering, and in particular relates to an energy-saving and discharge reduction water supply system and a water supply method for foundation pit engineering. Background technique [0002] During engineering construction in the foundation pit, the water plant supplies domestic and construction water. It is necessary to use pressurized equipment to extract river water, transport it to the water purification plant for treatment, and then pressurize it again and enter the high-level pool for self-flowing supply from the high-level pool. After a multi-stage pressurization and water purification process, the cost of water production is relatively high and the energy consumption is relatively large. In addition, during the construction process, a large amount of clear water seeped into the foundation pit from the mountains on both sides. The quality of t...

AI Technical Summary

Problems solved by technology

In order to ensure the quality of foundation pit construction and increase the safety and reliability of construction water supply, the conventional practice is to solve this problem by using higher-level pools or increasing the number of high-level pools, which will obviously increase investment

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