CIRCULATING WATER SUPPLY SYSTEM Russian patent published in 1999 - IPC

FIELD: heat power engineering; industrial plant water supply systems. SUBSTANCE: purpose of invention is reduction of power consumption by normalizing power output of pumping plant by way of cleaning circulating water in system from accompanying contaminants and by maintaining efficient operation of ejector at optimum water pressure drop in connecting pipeline and circulating water main line. Circulating water supply system has heat exchangers connected by straight and return main lines to reservoir-mixer furnished with cooler connected to straight main line, connecting pipeline with flow governor and ejector whose mixing chamber is connected to water return main line. Screw grooves are made along inner surface of ejector nozzle part, from smaller section to larger section. Screw grooves change into circular groove connected over perimeter with larger section of nozzle part of ejector and connected with mud collector. Flow governor is installed on water return main line before reservoir-mixer. EFFECT: reduced power consumption owing to normalization of pumping unit power output by cleaning circulating water and maintaining effective operation of ejector. 2 dwg