Hydraulic-driven reciprocating water pump used in fresh water cooling and dust removal system

Abstract

The invention provides a hydraulic-driven reciprocating water pump used in a fresh water cooling and dust removal system. The water pump comprises a water pump shell and a reversing valve, wherein thereversing valve is provided with an oil inlet, an oil return port and two working ports, a water inlet and a water outlet are formed in the water pump shell, a reversing mechanism for switching the valve core station is arranged on the reversing valve, and the inner cavity of the water pump shell is divided into an oil cavity and two water cavities which are arranged on the left side and the right side of the oil cavity respectively; an oil piston is arranged in the oil cavity, and water pistons rigidly connected with the oil piston is arranged in the two water cavities respectively; the twoworking ports communicate with the parts, at the two sides of the oil piston, of the oil cavity respectively; and the two water cavities are provided with first one-way valves communicating with the water outlet correspondingly, and the two water cavities are provided with second one-way valves communicating with the water inlet correspondingly. According to the work of the oil pressure-driven reciprocating type water pump, the hydraulic impact of pumped water flow is small, the water flow is stable, meanwhile, the water pump can be automatically reversed, control is simple, the manufacturingand maintenance cost is low, and the operation is simple and reliable.

Description

technical field [0001] The invention relates to the field of cooling and dust removal, in particular to a hydraulically driven reciprocating water pump used in a fresh water cooling and dust removal system. Background technique [0002] With the development of water systems in various fields such as dust removal, cooling, fire extinguishing, and seawater desalination, the development of water pumps, the power source in water systems, is becoming more and more diverse. There are axial piston pumps and reciprocating water pumps that can meet higher pressure requirements: axial piston pumps can provide higher pressure, and the pulsation impact is smaller, but axial piston pumps have more parts and higher coordination requirements , the processing is relatively difficult, the cost is relatively expensive, and the plunger pump has high requirements on the medium and poor anti-pollution ability; the reciprocating water pump has the advantages of high pumping pressure, good suction...

AI Technical Summary

Problems solved by technology

There are axial piston pumps and reciprocating water pumps that can meet higher pressure requirements: axial piston pumps can provide higher pressure, and the pulsation impact is smaller, but axial piston pumps have more parts and higher coordination requirements , the processing is relatively difficult, the cost is relatively expensive, and the plunger pump has high requirements on the medium and poor anti-pollution ability; the reciprocating water pump has the advantages of high pumping pressure, good suction performance, high efficiency, and adaptable to a wide range of conveying media. The commonly used reciprocating water pump in the form of a motor-driven crankshaft and connecting rod frequently changes direction during work, resulting in a large hydraulic impact and troublesome direction change

Images