A high-voltage electrostatic load filter device for positive pressure biological protective clothing

Abstract

The invention discloses a high-voltage electrostatic filter device for virus prevention and control positive pressure biological protective clothing, which is characterized in that it is composed of a fixing belt, a casing, a power supply system, a core filter component, an air supply system, and an integrated control circuit; the casing is equipped with There are gas conduits, the upper gas valve port docking interface, and the grounding wire interface, and each interface is provided with a sealing ring. There are two openings on the left and right sides of the shell, and the air supply system is installed through four openings to maintain the air volume and keep the protective clothing inside. Air pressure, use airtight cushion to compress. The device of the present invention breaks through the traditional principle of physical barrier filtration, and realizes the high-efficiency filtration of fine particles and the inactivation of pathogenic microorganisms with the compound mode of high-voltage electrostatic field, while maintaining ultra-low pressure drop. The filter material of the device of the present invention has a loose structure, which can be repeated after cleaning. In use, the filter material has a long service life and low replacement frequency, and can be connected to the positive pressure protective clothing worn by the workers in the external environment of biological level 3 and above laboratories or high-risk biological pollution.

Description

technical field [0001] The invention relates to a filtering protection device for biological protective clothing, in particular to a high-voltage electrostatic load filtering device for positive pressure biological protective clothing. Background technique [0002] There have been many major outbreaks around the world. In 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 pollution environments, and the probability of being infected is extremely high. Therefore, personal protection in high-risk biologically polluted environments has become an increasingly important issue. These major epidemics are basically caused by airborne viruses. Therefore, workers in high-risk biological pollution environments need to wear protective clothing. The research and development of protective clothing for high-risk biological pollution workers at home and abroad is also further i...

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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