Dual-temperature-heat-pipe constant-temperature and constant-humidity air-conditioning unit

Abstract

The invention discloses a dual-temperature-heat-pipe constant-temperature and constant-humidity air-conditioning unit, comprising an air treatment circulating system and a dual-temperature refrigeration circulating system which are coupled through a high-temperature evaporator (3) and a low-temperature evaporator (5), wherein the air treatment circulating system comprises an air inlet (1), a filter (2), the high-temperature evaporator (3), a heat pipe exchanger evaporation section (4), a low-temperature evaporator (5), an air blower (6), a heat pipe exchanger condensation section (7), an electric heater (8), an electrode-type steam humidifier (9) and an air supply outlet (10) which are arranged in sequence according to the air flowing path; and the dual-temperature refrigeration circulating system consists of a high-voltage level refrigeration circulating loop and a low-voltage level refrigeration circulating loop. The dual-temperature-heat-pipe constant-temperature and constant-humidity air-conditioning unit also comprises a temperature sensor (18), a temperature controller (20), a humidity sensor (19) and a humidity controller (21). The dual-temperature-heat-pipe constant-temperature and constant-humidity air-conditioning unit disclosed by the invention can be used for effectively solving the problem of the common cold-hot offset and has greater energy-saving potential.

Description

technical field [0001] The invention relates to a double-temperature heat pipe constant-temperature and constant-humidity air-conditioning unit, which belongs to the technical field of refrigeration and air-conditioning equipment. Background technique [0002] In the constant temperature and humidity air conditioning unit, the surface cooler is usually used to control the dew point temperature of the air, and then the electric heater is used to reheat the air to the appropriate air supply temperature. This process will produce a great cold and heat offset, especially The waste is more obvious when the sensible heat load is small and the latent heat load is large. To solve the problem of subcooling and reheating of constant temperature and humidity units, there are currently several technical solutions as follows: 1. Independent fresh air system (DOAS), which was proposed around 2000. It consists of low-temperature air supply independent fresh air system, radiation Composed ...

AI Technical Summary

Problems solved by technology

The temperature and humidity independent control system usually needs to be combined with the solution dehumidification technology to fully exert its energy-saving effect. However, the solution dehumidification system has problems such as complicated control, large size, and high initial investment. Treatment to the required dew point temperature, usually without the use of solution dehumidification technology

3. Bypass the treated air. This scheme is simple and easy to implement, but it needs to constantly adjust the fresh air ratio, which affects the control accuracy. In addition, similar to the "independent fresh air system", it requires a lower cold source temperature, which is not conducive to energy saving

The traditional HP / CC system has the problem of poor controllability, that is, it is difficult to actively adjust the gravity heat pipe to control the air reheating temperature. In addition, it cannot meet the temperature and humidity control requirements at the same time, but can only adopt a temperature priority or humidity priority control strategy. Obviously not suitable for direct use in constant temperature and humidity air conditioning units

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