Dehumidification device of air preprocessing solution

Abstract

The invention relates to a dehumidification device of an air preprocessing solution, which comprises a dehumidification device (9), a solution regenerator (3) and a liquid separator (6), wherein the bottom of the dehumidification device (9) is provided with a liquid bag (18), packing (11) is arranged in the dehumidification device (9), the dehumidification device (9) is provided with a first solution spraying device (19) and a third water cooling device (20), one end of the dehumidification device (9) is provided with an air inlet, and the other end of the dehumidification device (9) is connected with a dehumidification space; the end of the air inlet is provided with an air preprocessing box (7) with a second water cooling device (21); the solution regenerator (3) is provided with a heatexchanger (13); a first water cooling device (22) is arranged in the liquid separator (6); the solution regenerator (3) is communicated with the first solution spraying device (19) and the liquid bag(18); after passing through the first water cooling device (22), the second water cooling device (21) and the third water cooling device (20) respectively, a water supply pipeline is connected with awater return pipe; and one end of the air preprocessing box (7) is communicated with outdoor fresh air, and the other end is connected with the air inlet of the dehumidification device (9).

Description

technical field [0001] The invention relates to a solution dehumidification device that uses a high-temperature cold source to cool and dehumidify fresh air, and uses indoor return (exhaust) air [hereinafter referred to as return air] to regenerate a lithium compound hygroscopic solution. Background technique [0002] In my country, the per capita share of energy resources is low, the ecological environment is fragile, resource waste and environmental pollution are serious, and the energy problem is particularly prominent. Reasonably allocate and utilize renewable alternative energy according to local conditions and reduce the consumption of high-grade energy, which is in line with my country's sustainable development strategy and solves the technical bottleneck of energy consumption constraints. [0003] In the solution dehumidification system, the concentrated solution of salt (such as lithium) with hygroscopic function absorbs water vapor in the air and becomes a dilute s...

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Problems solved by technology

However, the solution of the device is in direct contact with the heat collector / regenerator, the solution concentration is difficult to control, and solution crystallization is easy to occur, and the lithium compound solution is corrosive, which is easy to corrode the heat collector / regenerator and affect the performance of the heat collector / regenerator Heat collection efficiency and service life. At the same time, pretreatment with fresh air for regeneration needs to consume high-grade energy, which is not conducive to energy saving

Chinese patent application No. 200610050602.3 discloses a technology that utilizes heat pump exhaust heat and indoor return air to improve solution regeneration efficiency. Heat pump heat exhaust is used to heat the solution, and indoor return air with low water vapor partial pressure is used to sweep the heated dilute solution. To regenerate the solution, this patent can effectively improve the regeneration efficiency of the solution, and uses the heat pump to recover heat, which has a certain energy saving effect, but this patent has a corrosive effect on the heat exchanger of the heat pump, and the material requirements for the heat exchanger High; this patent does not pre-treat the fresh air, which increases the burden of dehumidification of the solution, which is not conducive to saving energy consumption. At the same time, the patent needs to always turn on the heat pump to heat the dilute solution, consuming high-grade electric energy

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