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Solution regeneration method and device based on variable cross-section hot compression

A solution regeneration and thermal compression technology, applied in reverse osmosis and other directions, can solve the problems of poor mass transfer effect and large regeneration device, and achieve the effects of increasing solution concentration, small temperature change area, convenient and flexible operation

Inactive Publication Date: 2012-07-25
张晓琳
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  • Abstract
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Problems solved by technology

This method has some disadvantages, such as poor mass transfer effect, large regeneration device, extra energy is often required for the regeneration process, and some process problems

Method used

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  • Solution regeneration method and device based on variable cross-section hot compression
  • Solution regeneration method and device based on variable cross-section hot compression

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Embodiment Construction

[0028] The present invention will be described below with reference to the accompanying drawings.

[0029] Solution regeneration method and device based on variable cross-section thermal compression, the device includes a cold / heat source liquid phase heat exchanger, a cold / heat source gas phase heat exchanger, a first chamber, a first piston, a piston rod, a second piston, and a liquid inlet valve, drain valve, second chamber, reverse osmosis membrane, charging module, charging valve. The specific implementation scheme is as follows: the operation process of the device is divided into the processes of pressurization, dilute solution pressurization and concentrated solution depressurization. Pressure charging process: open the pressure charging valve, use the pressure charging module to fill a certain amount of working fluid into the first chamber, close the pressure charging valve after the filling is completed; pressurization process: open the liquid inlet valve, close the l...

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Abstract

The invention provides a solution regeneration method and a device based on variable cross-section hot compression. The regeneration device comprises a cold / hot source liquid-phase heat exchanger, a cold / hot source gas-phase heat exchanger, a first cavity, a first piston, a piston rod, a second piston, a liquid inlet valve, a liquid discharging valve, a second cavity, a reverse osmosis membrane, a pressurizing module and a pressurizing valve. According to the solution regeneration method and the device disclosed by the invention, hot pressure is used as a driving force and high reverse osmosis pressure is obtained by the low hot pressure through variable compression area to supply high pressure to a solution side of the reverse osmosis membrane; and water in a diluted solution is penetrated out to increase the concentration of the solution, thus realizing regeneration of the solution. The invention provides feasible method and solution for regeneration of the solution, which have the advantages of simple structure, feasibility and high economical efficiency.

Description

technical field [0001] The invention belongs to the technical fields of solution regeneration, variable cross-section thermal compression, and reverse osmosis, and in particular relates to a solution regeneration method and device based on variable cross-section thermal compression. Background technique [0002] In recent decades, solution regeneration technology has been widely valued by scholars at home and abroad, and has become one of the research hotspots. The traditional solution regeneration method uses the difference between the partial pressure of water vapor on the surface of the solution and the partial pressure of water vapor in the air to realize the mass transfer between the two. This method has some disadvantages, such as poor mass transfer effect, large regeneration device, extra energy often required for the regeneration process, and some technological problems. Therefore, it is still of great significance to study new solution regeneration methods. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D61/08
Inventor 殷勇高折晓会张小松
Owner 张晓琳
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