Medical air exhausting and fresh air integrated machine cabinet

Abstract

The invention relates to a medical air exhausting and fresh air integrated machine cabinet. The medical air exhausting and fresh air integrated machine cabinet comprises a first machine cabinet and asecond machine cabinet, wherein the first machine cabinet is provided with an air exhausting inlet, an air exhausting outlet, an air exhausting channel, an air exhausting fan, a heat recovery device,a fresh air inlet, a fresh air pre-filtering module, a first fresh air channel, a chemical filter, a preheater and a fresh air inlet fan; and the second machine cabinet is provided with a second freshair channel, a dehumidifier, a heater, a humidifier, a fresh air outlet fan, a tail end filter and a fresh air outlet, and the fresh air outlet is used for sending out fresh air. According to the medical air exhausting and fresh air integrated machine cabinet, the fresh air function and the air exhausting function are integrated, waste heat or wasted cold are utilized to achieve energy saving, and further energy saving is achieved by completely separating fresh air treatment from air return treatment; and an cold source outdoor machine for an air conditioner is a digital variable capacity direct-expansion air-cooled unit.

Description

technical field [0001] The present invention generally relates to the field of medical ventilation facilities, in particular to a medical exhaust and fresh air integrated cabinet. Background technique [0002] At present, China has high technical requirements for the medical environment. These requirements are: (1) Air cleanliness. Clean rooms can be divided into I, II, III and IV according to their uses. Class rooms have different cleanliness requirements, among which the concentration of 0.5μm and 5μm particles in the air is an important parameter that needs to be controlled; (2) comfort, the operating room temperature is generally controlled at 21°C to 25°C, and the relative humidity is generally controlled At 30% to 60%; (3) the number of colonies, the maximum average concentration of bacteria needs to be controlled in the operation area and the surrounding area. [0003] In practice, it is necessary to control and balance the air volume, which is mainly due to the foll...

AI Technical Summary

Problems solved by technology

The "primary return air" system is simple, but all the return air is dehumidified by the circulation unit and reaches the dew point temperature of the machine (usually lower than 16°C), so it needs to be heated to reach the supply air temperature, resulting in "cold" and "hot" balance , not only wasting cooling capacity but also consuming heat, which is very energy-inefficient

The "primary and secondary air return" system can achieve energy-saving effects, but in order to realize automatic control, automatic control valves and actuators need to be added, resulting in high failure rates and difficult debugging in practical applications, making it difficult to popularize the system

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