Ventilation system for nursing and disinfection

Abstract

The invention discloses a ventilation system for nursing and disinfection. Air enters a main pipeline through a compressor at a ventilation inlet; a filter, a jet flow atomizer and a buffer chamber are sequentially arranged on the upstream of the main pipeline; a humidifier, an ion generator, an air ion meter, an impactor, a vacuum pump, an air ion meter and an anemometer are sequentially arranged on the downstream of the main pipeline; the air is discharged into a ward through an air supply grille; and a heater, a controller and a centrifugal fan are arranged in the buffer chamber. By using the ventilation system disclosed by the invention, optimal control parameters are obtained according to effect evaluation indexes of the steady state simulation and the transient simulation, and the controller transmits the optimal control parameters to each control component for layered ventilation, so that the exposure risk of medical staff in a hospital ward can be greatly reduced.

Description

technical field [0001] The invention relates to the field of nursing care, and more specifically relates to a ventilation system for nursing disinfection. Background technique [0002] Airborne pathogens are the primary source of infection in the spread of infection in hospital wards. In order to protect medical staff from respiratory infection, the concentration of pollutants in the ward should be reduced to reduce the exposure risk of medical staff. The main task of ward ventilation is to dilute the polluted air in the breathing zone and provide clean air to the medical staff. On the one hand, the air change rate should be high enough to dilute the pollutants. On the other hand, the airflow organization in a hospital ward should be well designed, because airflow organization has a great influence on the distribution of pollutants. In recent years, studies on the diffusion of pollutants in conventional ventilation systems in hospital wards have found that pathogen-carryi...

AI Technical Summary

Problems solved by technology

In recent years, studies on the diffusion of pollutants in conventional ventilation systems in hospital wards have found that pathogen-carrying aerosols exist not only downstream of patients, but also in upstream areas, which indicates that even when working upstream, medical staff still face huge risk of exposure

Existing ventilation methods such as mixed ventilation and displacement ventilation cannot effectively dilute pollutants and reduce the exposure risk of medical staff

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