A kind of air conditioning and ventilation system for laboratory

Abstract

The invention relates to an air-conditioning and ventilation system for a laboratory, which includes an air-conditioning box and a refrigerating unit, the refrigerating unit includes an evaporator, a condenser, a compressor and an electronic expansion valve, and a cooler and a heater are arranged in the air-conditioning box; wherein, During cooling, the cold water is cooled by the evaporator and sent to the cooler, and the cooled air is treated to the point where the cold air is sent; during heating, the fresh water is heated by the condenser and then sent to the heater, and the heated air is treated to At the state point of hot air supply, the treated air is sent to the laboratory by the fan section of the air conditioning box. The invention realizes the independent adjustment of indoor temperature and humidity, precisely controls indoor parameters, and improves the air quality of the air supply; the invention has outstanding energy-saving effects and increases the efficiency of the unit; the air supply and return mode of the invention adopts the air supply side of the orifice plate to send back and forth, and the noise is small , the temperature field and velocity field are uniform, the temperature gradient is small, and the air supply is directly sent to the work area, which ensures the air quality and comfort requirements of the experimenter's work area.

Description

technical field [0001] The invention relates to the technical field of ventilation systems, in particular to an air-conditioning and ventilation system for laboratories, especially for temperature-controlled laboratories of ships. Background technique [0002] In recent years, newly built marine scientific research ships have paid more and more attention to scientific research laboratories. The temperature control laboratory has an accuracy requirement of ±0.5°C for room temperature and ±5% for relative humidity. Conventional air-conditioning systems use heat-humidity coupling treatment for the air, and dehumidify the air while cooling down. At the same time, reheating compensation is often required after dehumidification, resulting in waste of energy. At the same time, the actual air supply point of the conventional system is not on the ε line during a considerable amount of operating time throughout the year, which may cause a certain parameter in its temperature or humidi...

AI Technical Summary

Problems solved by technology

Conventional air-conditioning systems use heat-humidity coupling treatment for the air, and dehumidify the air while cooling down. At the same time, reheating compensation is often required after dehumidification, resulting in waste of energy

At the same time, the actual air supply point of the conventional system is not on the ε line during a considerable amount of operating time throughout the year, which may cause a certain parameter in its temperature or humidity to be out of control

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