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Method for concentrating solution

A solution concentration and solution technology, applied in the field of solution concentration, can solve the problems of inability to adopt asymmetric heat transfer mode, inability to form countercurrent heat and mass transfer, poor flexibility, etc.

Inactive Publication Date: 2004-12-22
格瑞智慧人居环境科技(江苏)有限公司
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Problems solved by technology

[0006] The disadvantages of the one-stage regeneration method are obvious: effective countercurrent heat and mass transfer cannot be formed, and asymmetric heat transfer cannot be used to make full use of the heat source. The regeneration efficiency is low and the flexibility is poor.

Method used

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Embodiment Construction

[0025] Below in conjunction with accompanying drawing, prior art and specific embodiment of the present invention will be further described:

[0026] figure 1 and figure 2 It is a schematic diagram of a typical single-stage solution regeneration in the prior art, figure 1 It is the way of gas-liquid countercurrent contact, 1 is the air entering the regenerator, 2 is the air exiting the regenerator, 3 is the dilute solution, 4 is the concentrated solution, 5 is the circulating fluid, 6 is the heating fluid entering the heat exchanger, 7 In order to discharge the heating fluid of the heat exchanger, 8 is a regenerator, 9 is a heat exchanger, and 10 is a solution pump. The circulating fluid 5 is heated by the heat exchanger 9 in the figure. The circulating liquid 5 is in contact with the air, the solution is concentrated, and the humidity of the regeneration air is increased. It can be seen from the figure that since the circulating liquid 5 is circulating, although the gas a...

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Abstract

A solution concentration method characterizes in classifying the solution into 2-6 stages according to the differential concentration range of strong solution and weak solution in which the condensed range of each stage solution is only a part of entire solution concentration range, that is partial concentration and a complete concentration range is formed by combining the multistage, so as to realize multistage concentration. Energy can be used many times under different conditions during the 2-6 stages concentration, namely, not need energies from outside.

Description

technical field [0001] The invention relates to a solution concentration method, which belongs to the technical field of air conditioning. Background technique [0002] The traditional regeneration method of dehumidification solution mostly adopts single-effect single-stage. The method used is boiling evaporation or non-boiling evaporation, and most of them are carried out under normal pressure and near normal pressure. [0003] Chinese invention patent 8910399.X "Air Conditioning Method and Its Equipment" discloses a two-effect solution concentration method, one effect is boiling evaporation, and the second effect is non-boiling evaporation. [0004] US Patent No. 5097668 "Energy Reuse Regeneration For Liquid Desiccant Air Condition" also discloses a two-effect solution concentration method. [0005] US invention patent 4939906 "Multistage Boiler / Regeneration ForLiquid Desiccant dehumidifiers"; Chinese invention patent 97115278.0 "air conditioning ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D1/26F24F3/14
Inventor 袁一军夏国兴
Owner 格瑞智慧人居环境科技(江苏)有限公司
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