Energy recovery system for high pressure liquid - has reciprocating piston units and drive powered by high pressure liquid

摘要

The system for recovery of energy from a highly compressed liquid is a by product of a chemical process or produced by reverse osmosis in water desalination, has a motor with piston and cylinder units. The energy is recovered from the outlet end of a high pressure system and the recovery reliable in operation. A piston and cylinder unit (17) has a piston rod which is connected to the liquid flow at the inlet end of the high pressure system. The common joint piston rod (21) is coupled to a drive (24). The piston surface area (F1) of the outlet end unit (17) is smaller than or equal to the piston surface area of the inlet end unit (3). A number of phase displaced piston and cylinder units can be arranged on the inlet and outlet sides which are connected in pairs by common piston rods through the drive.