Hood device for bioprotection protection

Abstract

The invention discloses a head cover device for biological protection. The head cover device comprises a head cover and an air filtering backpack, a window is arranged on the front face of the head cover, a first air inlet and a first air outlet are formed in the two sides of the head cover respectively, check valves are arranged at the first air inlet and the first air outlet respectively, and atemperature and humidity detection unit is arranged in the head cover; an air inlet disinfection bin, a dilution filter bin, a drying bin, an air outlet disinfection bin and a control unit are arranged in the air filter backpack, and the air inlet disinfection bin, the dilution filter bin and the drying bin are sequentially communicated; the air inlet sterilization bin is provided with a second air inlet, the drying bin is provided with an air supply connector, and the air outlet sterilization bin is provided with an exhaled air connector and a second air outlet; the second air inlet is provided with a positive pressure air supply mechanism, the second air outlet is provided with a negative pressure exhaust mechanism, and the positive pressure air supply mechanism, the negative pressure exhaust mechanism and the temperature and humidity detection unit are electrically connected with the control unit. The device can be guaranteed that inhaled gas and exhaled gas are filtered by the disinfection, and the interior of the head cover is dehumidified and cooled.

Description

technical field [0001] The invention relates to the field of biological protection equipment, and more particularly, relates to a headgear device for biological protection. Background technique [0002] With the development of the economy, the importance of biological protection is also increasing. On the one hand, some advanced industries have higher requirements for the asepticity of the working environment, such as various biological fermentation projects and genetic engineering. On the other hand, the threat of acute and sudden infectious epidemics to the economy and people's lives and property is also increasing. In order to protect special environments, or to protect people working in specific dangerous environments, protective clothing, especially protective hoods, are necessary. [0003] Although the general protective headgear can meet the needs, but because of the airtight environment, the staff often feel bad when using it, especially the protective headgear use...

AI Technical Summary

Problems solved by technology

However, there is an obvious shortcoming in the existing scheme. First, the existing positive pressure hood only relies on the electrostatic adsorption effect of the melt-blown cloth, which has no destructive effect on pathogens. Improper handling can easily cause secondary pollution; second, There is no treatment for the exhaled gas by itself, and the method of direct discharge with check valve or direct discharge with positive pressure is generally adopted

Both of these solutions will cause unfavorable factors: in some applications such as bioengineering, the direct discharge of the check valve is not suitable, which will cause foreign microorganisms to contaminate the work area. In the case of infectious diseases, if the person wearing the hood is infected The transmission cannot be suppressed; while the positive pressure inline row often makes the humidity inside the hood too high, which is not conducive to high-intensity and long-term work

Images