A solution-assisted composite fresh air treatment unit

Abstract

The invention discloses a solution assisted combined fresh air unit. The solution assisted combined fresh air unit comprises a first air channel, a second air channel, a surface air cooler, an evaporator, a solution dehumidifier, a second condenser, a solution regenerator, a high-temperature cold water supply pipe, a high-temperature cold water return pipe, a first condenser, a dehumidifying solution pump and a regenerative solution pump, wherein the first air channel and the second air channel are arranged in parallel; the surface air cooler, the evaporator and the solution dehumidifier are successively arranged in the first air channel; the second condenser and the solution regenerator are arranged in the second air channel; the high-temperature cold water supply pipe is connected with an inlet of a cooling water coil pipe of the surface air cooler; the high-temperature cold water return pipe is connected with an outlet of the cooling water coil pipe of the surface air cooler; the first condenser is connected with the evaporator through a compressor and an expansion valve; the dehumidifying solution pump is connected with the solution dehumidifier; and the regenerative solution pump is connected with the solution regenerator. In the whole unit, heat of a steam compression type refrigeration cycle and heat of a solution dehumidifying cycle are transmitted through air, and a corrosive solution is prevented from being in direct contact with the evaporator and the condensers. The unit has the characteristics of low cost, stable running and outstanding energy conservation, andhas high engineering practical value.

Description

technical field [0001] The invention relates to an energy-saving fresh air unit capable of realizing precise control of air temperature and humidity, and belongs to the technical field of air conditioning system design and manufacture. Background technique [0002] In various buildings, the energy consumption of the air-conditioning system used to meet the indoor thermal comfort environment accounts for about 50% of the total energy consumption of the building. The energy consumption level of the air-conditioning system is an important indicator to measure whether a building meets the energy-saving standard. However, due to the defects of its own structure and air treatment method, the air-conditioning system commonly used at present consumes a large amount of electric energy and causes serious environmental pollution problems. Therefore, it is more urgent and practical to develop an energy-saving and environment-friendly air-conditioning system. [0003] At present, the fre...

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Problems solved by technology

[0006] Purpose of the invention: The present invention provides a solution-assisted composite fresh air treatment unit. The fresh air treatment process of the unit adopts a three-stage mode of pre-cooling and pre-dehumidification, condensation dehumidification and dehumidification and reheating, and the vapor compression refrigeration cycle and the solution dehumidification cycle. The heat transfer between them is realized by air flow, which solves the problems of high energy consumption of traditional fresh air units, high cost and unstable operation of heat pump driven solution dehumidification units

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