Composite earth pressure balance shield machine water supply system

Abstract

The invention discloses a water supply system of a composite earth pressure balance shield machine, which moves as a shield machine trolley. A tunnel external water pump supplements water for a water storage tank automatically by the coiling block of a water supply pipe based on a signal of a liquid level sensor; a water supply pump sucks water from the water storage tank; a water pump I supplieswater to a hydraulic oil cooler; cooled hot water is reserved for the trolley, an entry gate, secondary grouting, and a flushing water feeding inlet of a sewage pump, the cooled rest hot water is pressurized by a water pump V, and then supplied to a ground water supply apparatus for sand pulp blending by the coiling block of a water discharge pipe, or flows to a municipal sewage draining pipe network directly; a water pump II supplies water to an air compressor, a power distribution cabinet, a gear oil pool and the cooler of a hydraulic motor speed reducer; the hot water after being cooled flows back to the water storage tank; a water pump III supplies water to a foam liquid mixer and the flushing loop of a synchronous grouting pump; a water pump IV supplies water to the flushing loop of a grouting opening on the tail of the shield machine; the sewage pump is arranged at an adit water accumulation place for pumping accumulated water; flushing return water and pumped-out sewage are treated by a solid-liquid separator; and then waste water enters a sewage box, and is discharged by the water pump V which is started automatically based on the signal of the liquid level sensor. The water supply system disclosed by the invention has the advantages of being constant in cooling effect and capable of reusing the waste water, etc.

Description

technical field [0001] The technology of the invention mainly relates to a shield tunneling equipment, which is especially suitable for the water supply and cooling system of a compound earth pressure balance shield machine. Background technique [0002] At present, the composite earth pressure balance shield equipment mostly adopts a single water pump outside the tunnel to supply water continuously, and each branch in the shield machine takes water from the main water supply pipeline according to needs, and all the internal circulation cooling water and surplus water supply are all discharged outside the tunnel , the principle is: the external water supply pump of the tunnel continuously supplies water to the interior of the tunnel through the water supply pipe reel, and part of the water supply flows through the internal circulation cooler to the air compressor cooler, power distribution cabinet cooler, gear oil pool cooler, hydraulic pressure The motor reducer cooler is c...

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to provide a method to solve the problems of insufficient water supply capacity, poor cooling effect and low water efficiency in the long-distance construction of the existing water supply system, improve the performance of the water supply system and save water

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