High-voltage electrostatic filtering device of virus prevention and control positive-pressure biological protective clothing

Abstract

The invention discloses a high-voltage electrostatic filtering device of virus prevention and control positive-pressure biological protective clothing. The high-voltage electrostatic filtering deviceis characterized by consisting of a fixing belt, a shell, a power supply system, a core filtering assembly, an air supply system and an integrated control circuit, wherein the shell is provided with agas guide pipe, an upper gas valve port butt joint interface and a grounding wire interface, each interface is provided with a sealing ring, the left side and the right side of the shell are each provided with two openings, the air supply system is installed through the four openings to maintain the air volume and the air pressure in the protective clothing, and an airtight pad is used for pressing. According to the invention, the traditional physical barrier filtering principle is broken through, efficient filtration of fine particles and inactivation of pathogenic microorganisms are realized through a high-voltage electrostatic field composite mode while ultra-low pressure drop is maintained; and the filter material of the device provided by the invention has a loose structure, can be repeatedly used after being cleaned, is long in service life and low in replacement frequency, and can be connected with laboratories with three or more levels of organisms or positive-pressure protective clothing worn by high-risk biological pollution external environment operators.

Description

technical field [0001] The invention relates to a filter protection device for biological protective clothing, in particular to a high-voltage electrostatic load filter device for positive pressure biological protective clothing. Background technique [0002] There have been many major outbreaks around the world. During the fight against the epidemic, patients, service staff, medical staff, and virus-related researchers in the same hospital were also exposed to high-risk biological contamination environments, and the probability of infection was extremely high. Therefore, personal protection in high-risk biologically polluted environments has become an increasingly serious and important issue. These major outbreaks are basically caused by airborne viruses. Therefore, personnel working in high-risk biologically polluted environments need to wear protective clothing. The research and development of protective clothing for high-risk biologically polluted personnel is also bein...

AI Technical Summary

Problems solved by technology

However, this type of protective clothing has some disadvantages: 1) The head protection part composed of a hood, a mask and a mask is self-priming, has a large breathing resistance, and has a stuffy feeling; 2) Exhaled water vapor will condense on the mask, affecting the line of sight; 3) Part of the exhaled gas will remain in the mask, and it will be inhaled the next time you breathe, including some bacteria and other microorganisms, which is not conducive to health, and accelerates the replacement speed of masks and other components; and sweat cannot be discharged in time, resulting in moisture accumulation, low wearing comfort, and need to be replaced regularly; 5) The protection against viruses above level 3 is still limited

[0006] The first, second, and third types of systems all use dense filter materials. The filtration mechanism is the principle of physical barrier and adsorption. Although it can intercept but cannot completely inactivate pathogenic microorganisms, pathogenic microorganisms will gradually penetrate or have secondary deactivation. It is dangerous, and the filter material needs to be replaced in time to maintain the protection and pressure drop. The durability is low and the cost of use is high. In addition, the filter material of the system has a dense structure. To maintain the air supply volume, the energy consumption is high

The antibacterial and antiviral components on the filter media of the fourth type of system can inactivate pathogenic microorganisms, which greatly improves safety, but these types of filter systems are also installed with tight structure filter media, which cannot be cleaned and need to be replaced to maintain low pressure drop

The fifth type of system has an ultraviolet device, which inactivates pathogenic microorganisms and at the same time has the danger of producing harmful gases such as ozone, and its safety has been questioned

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