APPARATUS FOR PRODUCING PURIFIED WATER AND WATER FOR INJECTION Russian patent published in 2008 - IPC C02F9/06 C02F1/04 C02F1/42 C02F1/469 

FIELD: chemistry, process procedures.

SUBSTANCE: apparatus for producing purified water and water for injection comprises sterilizer, ion-exchange filter, tank for purified water and tank for water for injection. In addition, the device comprises feed water supply valve, connected to holding tank rapid filling valve, which interacts with a float-type gate valve and is connected to feed water holding tank, which is connected to the valve for supplying feed water from the holding tank to the pump line, and to the valve for discharging feed water from the holding tank. Feed water supply valve is connected to feed water pump, discharge of which is connected to the bypass valve inlet. Pressure indicator, which indicates current bypass control pressure, is connected to bypass valve inlet, to feed water pump discharge and to water flow meter, which is used to monitor the ion-exchange filter service life, while the flow meter is connected to multiway valve, which interconnects the ion-exchange column, a salt-dissolving apparatus, supply and discharge lines. The said multiway valve is connected to the supply rate control valve for the salt solution used for ion-exchange filter regeneration. The valve is connected to the salt solution flow rate indicator, which is connected to the salt dissolving apparatus. Outlet of the salt-dissolving apparatus, via the second outlet of the multiway valve, is connected to the inlet of the ion-exchange filter, the outlet of which is connected to the second inlet of the multiway valve via electric oxidizer. The third outlet of the multiway valve is connected to the valve, which controls operating capacity of the first and second electrodialyzers, and the said valve is connected to an electric-contact pressure gauge and to a continuous electric heater. The electric heater outlet is connected to the first electrodialyzer, outlet thereof is connected to the second electrodialyzer, the first outlet of which is connected to the second inlet of the first electrodialyzer, while the second outlet of the second electrodialyzer is connected to conductivity sensor. Outlet of the latter is connected to the second inlet of the second electrodialyzer via water flow rate meter, which measures water used for washing concentration cells of electrodialyzers. Outlet of the conductivity meter, via the valve which controls water supply to concentration cells of electrodialyzers, is connected to the resulting purified water flow meter. Outlet of the latter is connected to solenoid valve, which controls purified water supply to the purified water holding tank, which comprises sterilising lamp, and to the purified water return solenoid valve. The first outlet of purified water holding tank, via purified water take-off valve, is connected to portable tank for purified water take-off and transportation to area of consumption. The second outlet of purified water holding tank, via aseptic purified water supply valve and economizer, which is a shutoff-float level control device, is connected to an electric evaporative distilling apparatus. The latter is connected to a gas-liquid heat exchanger for water for injection production. Outlet of evaporative distilling apparatus, via gas-liquid heat exchanger, is connected to portable tank for water for injection takeoff and transportation to area of consumption. Outlet of coolant reservoir, via coolant pump connected to the distilling apparatus heat exchanger, is connected to the first inlet of liquid cooling liquid-air radiator, to the second inlet of which cooling air is supplied, while the radiator outlet is connected to the coolant reservoir inlet.

EFFECT: improved compactness and reliability of the apparatus; less energy consumption.

1 dwg