An adjustable continuous flow plasma disinfection and sterilization method and corresponding disinfection and sterilization equipment

A disinfection and sterilization, plasma technology, applied in sanitary equipment, disinfection, construction and other directions for toilets, can solve the problems of high vacuum degree, difficult to achieve, and difficult to form a large-scale and uniform plasma atmosphere.

Active Publication Date: 2022-03-08
DISINFECTSYS STERILIZATION TECH (XIAOGAN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this does not mean that low-temperature plasma disinfection technology has reached the peak of disinfection technology. So far, plasma disinfection technology still has some difficulties
The most direct problem is that this type of plasma is negative pressure or vacuum plasma, which cannot be used for large-scale disinfection and sterilization.
Even in the chamber, the plasma environment has no pressure difference, so the flow is blocked, and it is difficult to form a large-scale uniform plasma atmosphere
Once the chamber size increases, the corresponding vacuum requirements become higher and more difficult to achieve

Method used

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  • An adjustable continuous flow plasma disinfection and sterilization method and corresponding disinfection and sterilization equipment
  • An adjustable continuous flow plasma disinfection and sterilization method and corresponding disinfection and sterilization equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0085] Open the disinfection and sterilization equipment, and pass argon gas into the ignition module of the normal-pressure plasma unit in the disinfection and sterilization cabin module 21 through the working medium inlet module 6 as the working medium gas until the atmosphere environment of the plasma unit is replaced by argon saturation After that, start to supply energy to the plasma unit through the plasma power source 17 . At the beginning, 1500W is input through the control panel 2 & 3 as the plasma ignition power, and the output power of the plasma source 17 is adjusted by the master control module 18 . When the input power is completed and the plasma torch is formed, the plasma is adjusted to 1000W through the control panel 2 & 3 to maintain plasma stability, and the plasma parameters can be measured through the optical measurement interface and electrical measurement interface on the disinfection and sterilization cabin module 21, and the plasma can be judged. The b...

Embodiment 2

[0088] Using the surface-coupled induced plasma as the atmospheric pressure plasma, its plasma density is 3.7 × 10 11 piece / cm 3 , the atomic temperature is 4.3×10 5 K, the electron temperature is 2.0×10 4 K. Argon is introduced into the working medium inlet module of the atmospheric pressure plasma unit as a working medium gas until the argon is saturated to replace the atmosphere of the plasma unit, and then the plasma power source is used to supply energy to the plasma unit. At the beginning, 800W was used as the plasma ignition power. After the plasma torch was formed, the power was gradually reduced to the target power of 500W to maintain the plasma.

[0089] In the pressure regulating unit connected to the disinfection chamber, the outlet pressure regulating unit uses a liquid ring vacuum pump to regulate the outlet pressure, and the inlet pressure regulating unit uses a vortex fan to regulate the inlet pressure. After the ignition is completed and the plasma can mai...

Embodiment 3

[0091] Use inductively coupled plasma as atmospheric pressure plasma with a plasma density of 3.5×10 12 piece / cm 3 , the atomic temperature is 5×10 5 K, the electron temperature is 3.2×10 4 K. Introduce artificial air into the working medium inlet module of the atmospheric pressure plasma unit as the working medium gas until the artificial air is saturated and replaces the atmosphere of the plasma unit, and then starts to supply energy to the plasma unit through the plasma power source. At the beginning, 1000W was used as the plasma ignition power. After the plasma torch was formed, the power was gradually reduced to the target power of 800W to maintain the plasma.

[0092] In the pressure regulating unit connected to the disinfection chamber, the outlet pressure regulating unit uses a liquid ring vacuum pump to regulate the outlet pressure, and the inlet pressure regulating unit uses a Roots blower to regulate the inlet pressure. After the ignition is completed and the pl...

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Abstract

This patent discloses an adjustable continuous flow plasma disinfection and sterilization method, which includes the following steps: (1) in the disinfection and sterilization cabin with adjustable pressure difference between the inlet and outlet, exciting the normal pressure plasma; After the pressure plasma is stable, adjust the pressure difference between the inlet and outlet of the disinfection and sterilization cabin, so as to realize the adjustment of the plasma density in the cabin; (3) continuously send the microbial carrier to be sterilized into the disinfection and sterilization cabin, and Disinfection or sterilization; (4) The carrier is sent out of the disinfection and sterilization chamber continuously, and the disinfection or sterilization is completed. The method has the advantages of being able to work continuously under atmospheric pressure, disinfecting or sterilizing closed, semi-open or open spaces without residue, and realizing disinfection of various media. The invention also discloses a disinfection and sterilization equipment using the adjustable continuous flow plasma disinfection and sterilization method.

Description

technical field [0001] The invention relates to the field of disinfection and sterilization. In addition, the present invention also relates to the above-mentioned equipment and devices in the field of disinfection and sterilization. Background technique [0002] All kinds of microorganisms such as bacteria, fungi and viruses are one of the important components of the natural environment. The transformation, degradation and synthesis of a large number of substances in the natural environment depend on these microorganisms. Specific genetically modified microorganisms, such as Escherichia coli transplanted with penicillin synthesis genes, can directionally convert carbon sources, nitrogen sources, and sulfur sources in the fermentation broth into penicillin, a small molecule with a specific structure. For humans, however, the effects of microbes are in some cases harmful, even fatal, and intractable. Superbugs such as methicillin-resistant Staphylococcus aureus (MRSA), mult...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61L2/14A61L2/26A61L2/24G01D21/02
CPCA61L2/14A61L2/26A61L2/24G01D21/02A61L2202/11A61L2202/14
Inventor 张麟德
Owner DISINFECTSYS STERILIZATION TECH (XIAOGAN) CO LTD
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