Negative pressure ward in combination use in ordinary times and epidemic times and ventilation control method

Abstract

The invention discloses a negative pressure ward in combination use in ordinary times and epidemic times. The negative pressure ward comprises a medical care corridor, ward bodies, a patient corridorand buffer rooms, wherein a power distribution type ventilation system comprises a main ventilating machine, ventilating control modules, a main exhaust blower, exhaust air control modules, differential pressure sensors used for monitoring the differential pressure between the ward body and the corresponding buffer room and air quality sensors used for monitoring the air quality conditions in theward bodies, meanwhile, the invention further discloses a ventilation control method of the negative pressure ward in combination use in the ordinary times and the epidemic times, when the ward bodiesare used as the negative pressure ward bodies, the exhaust air control modules can adjust the exhaust air rate in a linkage mode by combining feedback signals of the differential pressure sensors, and it is ensured that the designed differential pressure can immediately return to normal after being damaged to prevent cross infection, when the ward bodies are used as the common ward bodies, the ventilating control modules can adjust the ventilating volume in a linkage mode by combining feedback signals of the air quality sensors, then the exhaust air control modules are linked to adjust the exhaust air volume, and it can be guaranteed that energy consumption is reduced when the ward bodies are used as the common ward bodies.

Description

technical field [0001] The invention relates to the field of fresh air system and control technology, in particular to a negative pressure ward used in combination with epidemic prevention and a ventilation control method for the negative pressure ward used in combination with epidemic prevention, which is suitable for negative pressure wards and negative pressure isolation wards. Background technique [0002] Negative pressure wards (including "negative pressure isolation wards") are places where patients with respiratory infections are treated, and there are large differences in the requirements for ventilation systems in general wards and other functional places. If there are strict pressure gradient requirements, at the same time The demand for the minimum fresh air volume is more than three times that of ordinary wards. When the negative pressure ward does not have the need to treat patients with respiratory infections, but is used as a general ward or other functional ...

AI Technical Summary

Problems solved by technology

However, in the actual use of the ward, there are often opening and closing of the doors and windows in the ward, and the design pressure difference will be destroyed instantly. The pressure difference recovery of the constant air volume ventilation system is slow. Because the pressure difference between the various areas does not recover in time, the pressure cannot be constant. Poor operation, easy to cause cross-infection

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