Exhaust gas decomposer of hydrogen peroxide plasma sterilizer

Abstract

The invention discloses an exhaust gas decomposer of a hydrogen peroxide plasma sterilizer, which comprises a lubricating oil recovery system (10) and an exhaust gas cleaning system (20), wherein the lubricating oil recovery system (10) comprises a lower shell (11), an upper shell (12) and a filter element (13), a gas inlet (A) and a reflux inlet (B) are arranged in the end part of the lower shell (11); the exhaust gas cleaning system (20) comprises a cleaning barrel and a recovering box (25), activated carbon particles are arranged in the cleaning barrel, mixed oil gas exhausted from a vacuum pump gas vent (G) enters the exhaust gas decomposer through the gas inlet (A) of the lower shell (11) of the lubricating oil recovery system, lubricating oil returns to a vacuum pump (3) after being adsorbed through the filter element (13), the hydrogen peroxide exhaust gas is decomposed into oxygen and water through adsorption of the activated carbon particle, then the oil gas separation is completed, and the recycling of the lubricating oil and the cleaning of the hydrogen peroxide exhaust gas are realized.

Description

technical field [0001] The invention relates to a sterilization equipment, especially a hydrogen peroxide low-temperature plasma sterilizer, in particular an oil-gas separation and waste gas decomposition device suitable for a hydrogen peroxide low-temperature plasma sterilizer, which belongs to disinfection and sterilization The field of equipment technology belongs to the international patent classification number A61L. . Background technique [0002] In the medical field, the disinfection and sterilization of medical devices is particularly important. The sterilization methods are generally divided into high temperature and low temperature. The method of low-temperature disinfection and sterilization of medical instruments is hydrogen peroxide low-temperature plasma sterilization. The specific method is to place the medical instruments to be sterilized in the sterilization chamber of hydrogen peroxide low-temperature plasma sterilization equipment, and In the low-pressu...

AI Technical Summary

Problems solved by technology

[0002] In the medical field, the disinfection and sterilization of medical devices is particularly important. The sterilization methods are generally divided into high temperature and low temperature. The method of low-temperature disinfection and sterilization of medical instruments is hydrogen peroxide low-temperature plasma sterilization. The specific method is to place the medical instruments to be sterilized in the sterilization chamber of hydrogen peroxide low-temperature plasma sterilization equipment, and In the low-pressure environment similar to vacuum in the warehouse, the hydrogen peroxide is vaporized and plasmaized at low temperature, so as to sterilize the medical devices placed in it. During the sterilization process, it is necessary to use a vacuum pump several times to sterilize. The gas in the bacteria chamber is sucked to reduce the air pressure in the sterilization chamber, so that the hydrogen peroxide liquid is vaporized at a low temperature, and a vacuum pump is required to suck the hydrogen peroxide gas into the sterilization chamber and pipeline medical equipment The inner cavity of the sterilizer realizes low-temperature sterilization. After the sterilization is completed, a vacuum pump is needed to extract the waste gas in the sterilization chamber. The air or hydrogen peroxide waste gas is pumped away, and the pumped gas is first pumped into the vacuum pump by the vacuum pump, and then discharged through the exhaust port of the vacuum pump after the internal circulation of the vacuum pump. Due to functional requirements, the hydrogen peroxide low-temperature plasma is now The vacuum pumps of the body sterilizer are all oil-lubricated vacuum pumps, which contain a large amount of liquid vacuum lubricating oil. The temperature of the vacuum pump will rise when it is working, and the temperature of the air or exhaust gas sucked into the vacuum pump usually exceeds 50°C. , under the action of temperature and pressure, part of the lubricating oil in the vacuum pump will vaporize and be discharged along with the exhaust gas, that is, the exhaust gas discharged from the exhaust hole of the vacuum pump not only includes the Air and hydrogen peroxide waste gas also inevitably contain gaseous lubricating oil. If the gaseous lubricating oil that has been discharged by mistake is allowed to be discharged, it will not only pollute the environment, but also cause a large amount of oil and gas to be generated in the sterilization chamber, and will also make the lubricating oil in the vacuum pump Oil gradually decreases, affecting its normal work, and even damages the vacuum pump

At the same time, if the undecomposed residual hydrogen peroxide waste gas discharged from the exhaust port of the vacuum pump is not treated, it will also pollute the environment and may threaten the health of equipment operators

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