Dual-effect solution dehumidification fresh air unit

Abstract

The invention discloses a dual-effect solution dehumidification fresh air unit which comprises a high-temperature solution dehumidification circulation system and a low-temperature solution dehumidification circulation system which are connected through a coupling heat exchanger (9), wherein the high-temperature solution dehumidification circulation system comprises a high-temperature regeneratorsensible heat recoverer (1), a high-temperature regenerator (2), a high-temperature regenerator heater (3), a high-temperature solution heat accumulator (6), a high-temperature dehumidification device (8), a high-temperature dehumidification device sensible heat recoverer (11) and the like; and the low-temperature solution dehumidification circulation system comprises a low-temperature regenerator sensible heat recoverer (12), a low-temperature regenerator (13), a low-temperature solution heat accumulator (16), a low-temperature dehumidification device (18), a low-temperature dehumidificationcooler (19) and the like. The dual-effect solution dehumidification fresh air unit can be used for reducing the irreversible loss of a solution dehumidification fresh air system in high-temperature heat source driving.

Description

technical field [0001] The invention relates to a double-effect solution dehumidification fresh air unit, which belongs to the technical field of refrigeration and air conditioning equipment. Background technique [0002] The basic principle of the fresh air solution dehumidification unit currently used is as follows: figure 1 As shown, it mainly consists of regenerator sensible heat recoverer 1', regenerator 2', regenerator heater 3', regenerator solution circulation pump 4', concentrated solution pump 5', solution regenerator 6', dilute solution pump 7', dehumidifier 8', dehumidifier cooler 9' and dehumidifier solution circulation pump 10'. [0003] When the system is working, the fresh air enters the regenerator 2' after exchanging sensible heat with the exhaust air through the regenerator sensible heat recovery device 1', and the heat source supplies heat to the solution in the regenerator 2' through the regenerator heater 3' and is heated The final solution is sprayed...

AI Technical Summary

Problems solved by technology

These improvements in the basic form can effectively reduce the irreversible loss in the dehumidification process of the solution and improve the dehumidification efficiency. However, when the temperature of the heat source is high (such as 95 ° C), the dehumidification solution is overheated in the regenerator, making the solution surface and regeneration. The water vapor partial pressure difference between the air is too large, even if the multi-stage solution dehumidification form is used, it is still difficult to avoid large irreversible losses. Therefore, a fresh air that can use high-temperature heat sources in stages to reduce irreversible losses is proposed. Solution dehumidification system is very necessary

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