REVERSE WATER SUPPLY SYSTEM Russian patent published in 2015 - IPC F28C1/00 

FIELD: power engineering.

SUBSTANCE: invention relates to heat-power engineering, particularly, to reverse water supply system of industrial enterprises. Claimed system comprises heat exchangers connected via forward and return lines to mixing pool. The latter is provided with cooler connected to forward line by connection pipe and provided flow rate controller and ejector. Mixing chamber of the latter is connected to return water line with pressure controller while ejector nozzle part inner surface has helical grooves connected with circular groove connected to collector of fouling. Note here that the cooler comprises vertical case with side walls and zigzag-like sectional webs to make the confusers and diffusers staggered relative to adjacent sections. Besides, flow rate controller is provided with shutter with the drive composed of the set of powder electromagnetic clutches. Temperature transducer connected to temperature controller is fitted at the forward water line. It incorporates comparator unit and master unit. Note here that comparator is connected to the input of electronic amplifier equipped with nonlinear feedback unit. Besides, electronic amplifier unit is connected with magnetic amplifier input, magnetic amplified being provided with rectifier with input connected to shutter drive speed controller. Note said webs of said confusers and diffusers are made of bimetal. Note here that internal material of diffusers features the conductivity factor some 2.0-2.5 times higher than that of the confuser internal material. Note here that heat exchangers are provided with thermoelectric generators composed of the housing with two flow-through channels for hot and cold water and the set of differential thermocouples. Hot ends of the latter are arranged inside the hot water flow-through channel while cold ends are arranged inside the cold water flow-through channel. Note here that the hot water flow-through channel input is connected via three-way valve with return water line upstream of aforesaid mixing pool. the hot water flow-through channel output is connected via return line downstream of said mixing pool. Besides, the cold water flow-through channel input is connected with forward pressure line upstream of pressure controller. The cold water flow-through channel output is connected via three-way valve with said mixing pool. Outer surface of every heat exchanger is coated with thin-fibre basalt material composed of twisted bundles extending from the straight line upstream of heat exchangers to return line downstream thereof.

EFFECT: maintenance of rated power costs due to reduced heat losses.

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