APPARATUS FOR RECOVERING ENERGY FOR DESALINIZATION SYSTEM USING REVERSE OSMOSIS PROVIDED WITH A SHOCK ABSORBING TYPE CHAMBER

摘要

PURPOSE: An energy collecting apparatus of a reverse osmosis desalination system is provided to alleviate impacts caused by the collision of a piston which reciprocates in a cylinder case. CONSTITUTION: An energy collecting apparatus of a reverse osmosis desalination system includes a reverse osmosis module(3), a plurality of power collecting chambers(5), and a flow path switching valve(7). Each power collecting chamber includes a cylinder case(21) and a piston(23). The cylinder case contains concentrated water or raw water. The piston reciprocates in the cylinder case and prevents the concentrated water from mixing with raw water by being a partition between the concentrated water and the raw water. The impact of the piston is alleviated by an impact absorbing protrusion(25) formed on at least one end of the piston.