CN114871203A - Method for decontaminating closed environment by using ultrasonic cavitation effect - Google Patents
Method for decontaminating closed environment by using ultrasonic cavitation effect Download PDFInfo
- Publication number
- CN114871203A CN114871203A CN202210309714.5A CN202210309714A CN114871203A CN 114871203 A CN114871203 A CN 114871203A CN 202210309714 A CN202210309714 A CN 202210309714A CN 114871203 A CN114871203 A CN 114871203A
- Authority
- CN
- China
- Prior art keywords
- decontaminating
- ultrasonic cavitation
- ultrasonic
- mist
- enclosed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000000694 effects Effects 0.000 title claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract description 25
- 239000003595 mist Substances 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 9
- 239000000443 aerosol Substances 0.000 claims description 8
- 238000005202 decontamination Methods 0.000 claims description 6
- 230000003588 decontaminative effect Effects 0.000 claims description 6
- 239000007921 spray Substances 0.000 claims description 6
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims 2
- KFSLWBXXFJQRDL-UHFFFAOYSA-N Peracetic acid Chemical compound CC(=O)OO KFSLWBXXFJQRDL-UHFFFAOYSA-N 0.000 claims 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims 2
- -1 hydroxyl ions Chemical class 0.000 claims 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims 1
- 239000004155 Chlorine dioxide Substances 0.000 claims 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims 1
- 235000019398 chlorine dioxide Nutrition 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 claims 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims 1
- 230000005855 radiation Effects 0.000 claims 1
- 244000052769 pathogen Species 0.000 abstract description 2
- 230000001717 pathogenic effect Effects 0.000 abstract description 2
- 241000894006 Bacteria Species 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 244000000010 microbial pathogen Species 0.000 abstract 1
- 241000894007 species Species 0.000 abstract 1
- 244000005700 microbiome Species 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 231100000225 lethality Toxicity 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
- Special Spraying Apparatus (AREA)
Abstract
The present invention provides a method and apparatus for decontaminating an enclosed environment using ultrasonic cavitation effects by subjecting cleaning fluid to ultrasonic cavitation to produce a low pressure, low air flow mist which can be activated by a non-thermal plasma actuator to produce a cloud of activated hydroxyl species, including bacteria and other pathogenic microorganisms, having the ability to decontaminate articles, open surfaces or substantially enclosed pathogen spaces.
Description
Technical Field
The present invention relates to an apparatus and method for decontaminating articles, enclosed and non-enclosed spaces, and more particularly to the microbial decontamination of such sites.
Background
Microbial species are widely distributed in our environment, most microbial species are of little concern because they do not harm other organisms, yet some microbial species may infect humans or animals and cause harm. The removal or inactivation of harmful microorganisms has been a problem of human concern. Medicines and medical instruments are sterilized and packaged in sterile containers, and medical environments such as operating rooms, hospital wards, and examination rooms are decontaminated through various cleaning procedures so that harmful microorganisms are not transmitted from patient to patient.
Current techniques for addressing these problems are of limited effectiveness in closed environments. There is therefore a need for a new method that is easier to use in a tightly closed environment, maintains the ability to be used on open surfaces in large spaces, has greater lethality, and has simpler mechanical maintenance characteristics.
Disclosure of Invention
The present invention provides a method for decontaminating an article, surface or substantially enclosed space, comprising the steps of: converting the cleaning fluid into a mist, the mist comprising aerosol droplets, the aerosol droplets accumulating in a top chamber portion of a substantially enclosed chamber, the chamber comprising a funnel-shaped top chamber portion, a bottom chamber portion, a side chamber portion, and an inner chamber portion, wherein the cleaning fluid is sheared by ultrasonic cavitation; placing the mist in a non-thermal plasma actuator to form plasma activated ionic particles; and contacting the article, surface or substantially enclosed space with the plasma-activated ionic particles.
Another aspect of the invention is a method for decontaminating articles or substantially enclosed spaces, comprising the steps of: immersing the ultrasonic cavitator into a liquid storage tank of cleaning liquid; cavitating the cleaning liquid using ultrasonic vibrations generated by the ultrasonic cavitator to produce a mist comprising aerosol droplets, wherein the mist is generated by the cleaning liquid when the cleaning liquid is cavitated; the mist is placed in a non-thermal plasma actuator to form plasma activated ion particles.
Another aspect of the invention is an apparatus for decontaminating articles or substantially enclosed spaces, comprising: a cleaning liquid storage tank; an ultrasonic cavitator, wherein the ultrasonic cavitator is submerged in the reservoir; wherein the actuator activates a mist generated by the reservoir; a passageway connecting the non-thermal plasma activator and the reservoir; wherein the outer tube connects the non-thermal actuator to the external atmosphere; mist generated from the water reservoir may pass through the funnel to the actuator, and after the actuator activates the mist, the mist may pass through the outer tube to the outside atmosphere.
Another aspect of the invention is a system for decontaminating an enclosed space, comprising: a sensor for an air or surface pathogen, wherein the sensor is in network communication with a computer processor; wherein the computer processor is in network communication with the sensor and the decontamination device; the decontamination device is in networked communication with the computer processor, and wherein the decontamination device further comprises a reservoir of cleaning fluid; the ultrasonic cavitator is submerged in the reservoir, wherein the actuator activates the mist produced by the reservoir.
Drawings
FIG. 1 is a diagram showing a general method for denaturing a biochemical reagent using an activated cleaning liquid mist
Fig. 2 is a diagram of the elements of the device connection.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to FIG. 1, an ultrasonic wafer 78 is shown that can be used as an ultrasonic atomizer; plasma actuator 76, dispersed single atomizer device 82, voltage source 52, cleaning liquid source 40, atomizer body 42, cleaning liquid 80, top chamber portion 74; the decontamination means includes an ultrasonic wafer or ultrasonic atomizer 82 as a mist generator. In some embodiments, the spray generator 42 comprises a substantially enclosed ultrasound chamber including a bottom chamber portion or reservoir, a top chamber portion 74 forming a passageway between the bottom chamber portion and the plasma actuator 76, a voltage source 52, a side chamber portion including the cleaning liquid source 40 and an inner chamber portion, wherein the cleaning liquid 80 dispensed into the atomizer 82 is sheared by the ultrasonic cavitation generated in the ultrasound chamber by the ultrasonic cavitation device 78. The cleaning fluid 80 is introduced into the fluid chamber or reservoir until it submerges the ultrasonic cavitation device 78. The ultrasonic cavitator 78 generates resonant ultrasonic waves for cavitating the cleaning liquid to produce aerosol droplets which are excited and lifted from the cleaning liquid through the passage 74.
Referring to fig. 2, the cleaning liquid source 40 and the spray generator 42 are connected by a driving device 70 having an adjustable rotation range of up to 360 degrees. Fig. 2B shows an arrangement of elements of the apparatus, wherein the source of cleaning liquid 40 is connected to the spray generator 42, and the spray generator 42 is connected to the spray delivery unit 72 by a drive means 70 having an adjustable rotation range of up to 360 degrees. Fig. 2C shows an arrangement of the elements of the apparatus, wherein the mist generator 42 is mounted on a drive means 70 having an adjustable range of rotation up to 360 degrees. Fig. 2D shows another arrangement of the device elements, in which the mist generator 42 feeds a mist delivery unit 72 mounted on a drive device 70, the drive device 70 having an adjustable range of rotation up to 360 degrees.
Claims (8)
1. A method for decontaminating a closed environment by utilizing an ultrasonic cavitation effect is characterized by comprising the following steps: converting a cleaning fluid into a mist at an ambient pressure of substantially one atmosphere, the mist of droplets accumulating in a top chamber portion of a substantially enclosed chamber, the chamber comprising a funnel-shaped top chamber portion, a bottom chamber portion, a side chamber portion and an inner chamber portion, wherein the cleaning fluid is sheared by ultrasonic cavitation, the cleaning fluid comprising a source of an active species for decontaminating articles or the substantially enclosed space, wherein the active species is hydroxyl ions, wherein the source is hydrogen peroxide, and wherein the cleaning fluid is silver-free, chlorine-free, peroxyacetic acid.
2. A method of decontaminating an enclosed environment using ultrasonic cavitation according to claim 1, placing the mist in a non-thermal plasma actuator to form plasma-activated ionic particles carried by aerosol droplets of the mist, wherein the plasma-activated ionic particles are hydroxyl ions.
3. A method of decontaminating an enclosed environment using ultrasonic cavitation according to claim 1, wherein the substantially enclosed chamber has a side chamber, and the side chamber includes a source of cleaning liquid.
4. A method of decontaminating an enclosed environment using ultrasonic cavitation according to claim 1, wherein the non-thermal plasma actuator is located in an outlet tube extending from an opening in a top chamber portion of the substantially enclosed chamber, wherein the outlet tube comprises a hollow lumen having a distal opening above the top chamber portion for discharging aerosol droplets carrying plasma-activated ionic particles.
5. A method for decontaminating closed environments using ultrasonic cavitation according to claim 4, wherein the diameter of the plasma-activated ionic particles is between 1 and 10 μm, wherein the particle size of the plasma-activated ionic particles may vary depending on the ultrasonic frequency used or the number of ultrasonic cavitators.
6. A method of decontaminating an enclosed environment using ultrasonic cavitation in accordance with claim 4, the aerosol droplets being passed through the outlet tube at a flow rate of between 0.5 and 20 ml/min; said mist being formed in a focused spray pattern having a diameter of between 0.07 and 1 inch; all of the steps described take place in a substantially enclosed space.
7. A method of decontaminating an enclosed environment using ultrasonic cavitation according to claim 4, wherein the number of ultrasonic cavitators used is adjustable according to the size of the enclosed space, and wherein aerosol droplets are pumped into the enclosed space at a flow rate of 1 to 4 ml/min.
8. A method for decontaminating an enclosed environment using ultrasonic cavitation according to claim 4, wherein the item to be cleaned is placed in an enclosed space for decontamination, the item to be cleaned is additionally exposed to ultraviolet radiation, and to a sterilant gas comprising chlorine dioxide, ethylene oxide, ozone, propylene oxide, nitrogen dioxide, formaldehyde, or combinations thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210309714.5A CN114871203A (en) | 2022-03-28 | 2022-03-28 | Method for decontaminating closed environment by using ultrasonic cavitation effect |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210309714.5A CN114871203A (en) | 2022-03-28 | 2022-03-28 | Method for decontaminating closed environment by using ultrasonic cavitation effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114871203A true CN114871203A (en) | 2022-08-09 |
Family
ID=82668211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210309714.5A Pending CN114871203A (en) | 2022-03-28 | 2022-03-28 | Method for decontaminating closed environment by using ultrasonic cavitation effect |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114871203A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030035754A1 (en) * | 1999-05-06 | 2003-02-20 | Sias Ralph M. | Decontamination apparatus and method using an activated cleaning fluid mist |
| CN110214031A (en) * | 2017-12-29 | 2019-09-06 | 堂美环境治理有限公司 | Use the cleaning equipment and method of ultrasonic cavitation |
| CN110214032A (en) * | 2017-12-29 | 2019-09-06 | 堂美环境治理有限公司 | Purify the method and system of small containment body |
-
2022
- 2022-03-28 CN CN202210309714.5A patent/CN114871203A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030035754A1 (en) * | 1999-05-06 | 2003-02-20 | Sias Ralph M. | Decontamination apparatus and method using an activated cleaning fluid mist |
| CN110214031A (en) * | 2017-12-29 | 2019-09-06 | 堂美环境治理有限公司 | Use the cleaning equipment and method of ultrasonic cavitation |
| CN110214032A (en) * | 2017-12-29 | 2019-09-06 | 堂美环境治理有限公司 | Purify the method and system of small containment body |
| CN110478504A (en) * | 2017-12-29 | 2019-11-22 | 堂美环境治理有限公司 | System for purifying the space of base closed |
| CN112933265A (en) * | 2017-12-29 | 2021-06-11 | 堂美环境治理有限公司 | Decontamination apparatus and method using ultrasonic cavitation |
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Application publication date: 20220809 |