Patent UA-89413-C2 (UA)
Title: method and device of desalination of water and aqueous solutions with generation of excess energy
Inventor: FEDOTKIN IHOR MYKHAILOVYCH
IPC: F24J3/00
Filed: 2008-01-25
Abstract: The invention relates to the thermal methods of desalination of water by method of distillation and can be used for purification of industrial waste waters. In a method of desalination of salt water the following operations consistently are performed along the flow: generation of hydraulic pressure head of salt water, alternate performing operations of cavitation evaporation and condensation of steam of cavities, in the case for cavitation evaporation process of flowing around a cavitator in the form of a conical body is carried out, downstream of which a super-cavity is formed, from which the produced steam is sent into a tubular condenser, where its condensation occurs in the tube space, for cooling the tubes of condensers a flow of salt water is used, from which before condensation the cavities receive the steam, in the case before entering the first cavitation evaporator in the direction of motion of flow operation of heating salt water is performed in convective heat exchangers, which are heated by the condensate of steam of the cavities, which enters from the condensers. For increasing the efficiency of condensation of steam of cavities process of evacuation of condenser steam is used, which is performed by means of an ejector. For increasing the efficiency of production of rotational energy operation of evacuation of the internal space of the generator tank of rotational energy is performed. An installation for distillation of water and aqueous solutions contains in series located horizontal chambers of cavitation evaporation, condensers of steam of cavities connected with them by diffusers connected by steam tubes to the evaporation chambers, in the case in the evaporation chambers the cavitators are mounted on an axle, to which the steam tubes are connected which are joined with the condensers. The installation contains a pump for supply of salt water, which is connected with a cascade of heat exchangers, which tube space is connected with the condensers of steam of cavities for supplying the condensate. The cascade of heat exchangers is connected with the inlet of desalter of salt water, which contains the evaporation chambers, which alternate with the condensers of steam of cavities, and the chambers of collapse with cavitators-electrodes are located upstream of the condensers of steam of cavities. The cavitator with central tube is installed at inlet into the desalter. Each cavitator of the chamber of cavitation evaporation is connected by the steam tube with the condenser through one stage, while each condenser is connected with corresponding heat exchanger. The outlet of desalter is connected with a heat exchanger-boiler of heating circuit, which is connected with an ultrasonic filter of continuous action. The filter is connected to the inlet of generator of rotary motion, which is connected with the pump, and its outlet is connected with a barometric tube immersed in the barometric box with free draining concentrated salt water. The heat exchangers are connected with a run tank; moreover the run tank and internal spaces of the condensers of steam of cavities are connected with the ejector mixing chamber, and the outlet of ejector is connected with the outlet of salt water from desalter. The inventions ensure increase of the efficiency of distillation.