DIAPHRAGM INSTALLATION Russian patent published in 1995 - IPC

FIELD: mechanical engineering. SUBSTANCE: diaphragm installation has delivery pump, diaphragm unit which separates concentrate and permeate from solution, throttling device in concentrate line at outlet of diaphragm unit, device for metering chemical reagents, and pipelines. Metering device is made in form of vessel for initial liquid connected with input of delivery pump, initial liquid delivery pipe and with output of jet pump connected with concentrate outlet line and vessel for metered chemical reagent. Vessel for initial liquid has vertical partitions, and vessel for reagent has pipelines to let out reagent and to deliver air, both being installed in cover. Ends of pipelines are located near bottom of vessel. Reagent outlet pipeline has reagent flow meter and shutoff valves. EFFECT: enlarged operating capabilities. 4 cl, 1 dwg