WATER REUSE SYSTEM Russian patent published in 2013 - IPC F28C1/00 

FIELD: power engineering.

SUBSTANCE: water reuse system comprises heat exchangers, connected by direct and return water manifolds to a mixer pool, equipped with a cooler connected to the direct manifold by a connection pipeline with a flow controller and an ejector, the mixing chamber of which is connected to the return water manifold with a pressure controller, and a nozzle part of the ejector on the inner surface has helical grooves connected to a circular groove connected to a dirt collector. The cooler comprises a vertical body, side walls of which and sectional partitions installed in are arranged as zigzag-shaped and form diffusers and confusers in each section as arranged relative to adjacent sections in staggered order, besides, the flow controller is equipped with a gate valve with a drive of a speed controller in the form of a block of powder electromagnetic couplings, and on the direct water manifold there is a temperature sensor installed, which is connected to the temperature controller comprising a comparison unit and a setting unit, at the same time the comparison unit is connected to the inlet of an electronic amplifier, equipped with a unit of non-linear feedback, besides, the outlet of the electronic amplifier is connected with the inlet of a magnetic amplifier with a rectifier, the outlet of which is connected to a speed controller of the gate valve drive, besides, partitions of diffusers and confusers are made of bimetal, at the same time the inner material of diffusers has heat conductivity ratio that is 2.0-2.5 times higher than the heat conductivity ratio of the inner material of confusers. Heat exchangers are equipped with a thermoelectric generator made in the form of a body with two throughput channels for hot and cooled water and a set of differential thermocouples, "hot" ends of which are arranged inside a throughput channel for hot water, and their "cold" ends are arranged in the throughput channel for cooled water, besides, the inlet of the throughput channel for hot water is connected via a valve with the return manifold downstream heat exchangers, and its outlet is connected to the return manifold upstream the mixer pool, besides, the inlet of the throughput channel for cooled water is connected with the direct discharge manifold upstream the pressure controller, and its outlet is connected via a three-way valve with the mixer pool.

EFFECT: reduced energy intensity of a water cooling process by usage of water thermal potential in a direct manifold by means of a thermoelectric generator.

2 dwg