CN1093284A - Cold plasma sterilizing and disinfecting device - Google Patents
Cold plasma sterilizing and disinfecting device Download PDFInfo
- Publication number
- CN1093284A CN1093284A CN 94102578 CN94102578A CN1093284A CN 1093284 A CN1093284 A CN 1093284A CN 94102578 CN94102578 CN 94102578 CN 94102578 A CN94102578 A CN 94102578A CN 1093284 A CN1093284 A CN 1093284A
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- China
- Prior art keywords
- housing
- described housing
- cold plasma
- disinfection apparatus
- plasma disinfection
- Prior art date
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- 230000005495 cold plasma Effects 0.000 title claims abstract description 28
- 230000001954 sterilising effect Effects 0.000 title abstract description 18
- 230000000249 desinfective effect Effects 0.000 title abstract 2
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 40
- 238000009413 insulation Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 description 7
- 230000000844 anti-bacterial effect Effects 0.000 description 5
- 244000005700 microbiome Species 0.000 description 4
- 241000700605 Viruses Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 235000001674 Agaricus brunnescens Nutrition 0.000 description 1
- 241000700721 Hepatitis B virus Species 0.000 description 1
- 244000144987 brood Species 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000000968 intestinal effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
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- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
A cold plasma sterilizing and disinfecting device comprises a shell with a switch door, an electrode rod insulated with the shell and connected with one electrode of a direct current power supply is arranged in the shell, the shell is connected with the other electrode of the direct current power supply in a zero potential mode, a tray is arranged between the electrode rod and the shell in an insulating mode, the voltage between the electrode rod and the shell is 250-1000V, and the discharge current density is 0.4-1.5 milliampere/cm2The shell is provided with a pipeline and an inflation valve which are connected with a vacuum pump, and the vacuum degree of the vacuum pumped in the shell is 1.33Pa to 500 Pa. The device has simple structure, reliable work and short sterilization time, is suitable for the sterilization of various articles and does not damage instruments.
Description
The present invention relates to the disinfection apparatus of material or article.
At present, generally adopt means such as high temperature, high compressed steam to operating theater instruments both at home and abroad, operation bag, dressing, disposable sanitary articles etc. carry out sterilization.This method is consumes energy not only, and the sterilization time is long, inconvenient operation, some can not adopt the medical apparatus and instruments of means sterilizations such as high temperature, high pressure, as mouth mirror, gastroscope, intestinal mirror, tracheascope, glass drying oven, plastic, sebific duct etc., does not also have effective sterilization method at present, to mushroom attached thereto, virus, as hepatitis B virus, brood cell etc. are difficult to utterly destroy.
The objective of the invention is to overcome above-mentioned shortcoming, a kind of efficient, reliable, cold plasma disinfection apparatus of being applicable to various article sterilizations is provided.
Realize that purpose technical solution of the present invention is as follows:
A kind of cold plasma disinfection apparatus, comprise that one has the housing of switch door, in described housing, be equipped with housing insulating with electrode bar that extremely links to each other of dc source, the axis of described electrode bar is positioned on the axis of described housing substantially, described housing be zero potential and described dc source another extremely link to each other, voltage between described electrode bar and the described housing is 250 to 1000 volts, and discharge current density is 0.4 to 1.5 milliampere/centimetre
2, with its insulation ground the pallet that several are used to hold article is housed around the described electrode bar and between the housing, on described housing, be provided with the pipeline and the charge valve that link to each other with vacuum pump, the vacuum behind the interior evacuation of described housing is 1.33Pa to 500Pa.
A kind of cold plasma disinfection apparatus, comprise that one has the housing of switch door, in described housing, be equipped with housing insulating extremely link to each other with one of dc source several are basic perpendicular and be the pole plate of axis of symmetry with it with described housing axis, described housing be zero potential and described dc source another extremely link to each other, voltage between described pole plate and the described housing is 250 to 1000 volts, and discharge current density is 0.4 to 1.5 milliampere/centimetre
2, on described housing, being provided with the pipeline and the charge valve that link to each other with vacuum pump, the vacuum in the described housing behind the evacuation is 1.33Pa to 500Pa.
It is short that cold plasma disinfection apparatus of the present invention has the sterilization time, energy savings, and safe and reliable advantage is applicable to and the sterilization of various article does not damage apparatus and sterilizing objects.
Other advantages of the present invention and details can be cheer and bright by reading the embodiment hereinafter encyclopaedize in conjunction with the accompanying drawings, wherein:
Fig. 1 is the structural representation of an embodiment of cold plasma disinfection apparatus of the present invention.
Fig. 2 is the structural representation of another embodiment of cold plasma disinfection apparatus of the present invention.
With reference to Fig. 1, a metal bar 2 is housed on the axis in the cylindrical housings 1 that switch door (not shown) is housed, the length of metal bar 2 is selected between 5 centimetres to 500 centimetres according to the big I of decontaminating apparatus, and metal bar 2 can be fixed on the bottom of housing 1 with insulating and link to each other by the negative pole of lead with dc source 7.Housing 1 ground connection is zero potential and links to each other with the positive pole of power supply 7.Housing 1 can be made different shapes as required, as cylindrical, spherical, square etc.The switch door also can be made into side and opens, and open at the top, and it is multi-form that top integral body is opened etc.The internal diameter of cylindrical housings 1 is 8 to 400 centimetres, and height is 10 to 500 centimetres.Several (among the figure being 4) are being housed are used to hold the pallet 3 that is sterilized article around the rod 2 and between the housing 1, pallet 3 can be bearing on rod 2 or the housing 1 with insulating.On the bottom of housing 1 or other suitable position, be provided with the pipeline 5 that is connected with vacuum pump 6, vacuum meter 9 and charge valve 10.Between pipeline 5 and vacuum pump 6, also can load onto electromagnetic valve 8.Also can on housing 1, load onto observation window.
During use, can will be sterilized article 4, for example perform the operation bag, gauze, operating theater instruments, mouth mirror, gastroscope, sebific duct etc. are placed directly on the pallet 3, and the door that closes is then opened electromagnetic valve 8, will be evacuated to 133Pa in the housing 1 with vacuum pump 6.The intravital vacuum of shell can show by vacuum meter 9.If any special requirement, can open charge valve 10 as the sterilization of the article of fearness etchings such as rubber, sebific duct, gastroscope, tracheascope, select logical people N
2, O
2, a kind of in the gas such as Ar, He, Ne.Connect dc source 7 subsequently, make the voltage between metal bar 2 and the housing 1 remain on 300 volts, discharge current density is 0.76 milliampere/centimetre
2About.
During actual the use, the voltage between metal bar 2 and the housing 1 is at 300 to 1000 volts, and discharge current density is at 0.4 to 1.5 milliampere/centimetre
2, vacuum all can between 1.33 to 500Pa.
After the energising, ionization goes out cold plasma under electric field action.Electron temperature in the cold plasma can reach 20000-30000 ℃, and the radius of electronics is about 10
-13Rice, and antibacterial or viral size are about 10
-8Rice or littler, such tens or several thousand electronics surround antibacterial, and high temperature of its several ten thousand degree is enough to antibacterial or virus are killed fully.But,, can not damage any article that are sterilized, so be called cold plasma so on macroscopic view, there is not thermal capacity to produce because of the thermal capacity of electronics itself is very little.Simultaneously because of behind the evacuation, itself has become medium microorganism, be subjected to the bombardment of plasma, microorganism can be killed equally, moreover because of plasma contains the sub-oxygen in unit, the sub-oxygen in unit is a kind of strong oxidizer, also can kill microorganisms, secondly when evacuation, also can take a part of microorganism away again.The article that are sterilized like this carry out disinfection in cold plasma disinfection apparatus of the present invention, the sterilization process is only promptly finished in sterilization, naked apparatus within several seconds, to thicker encapsulation, because plasma has very strong diffusion, also can finish table about 15 minutes; In thoroughly sterilize, sterilize.
With reference to Fig. 2.Cold plasma disinfection apparatus shown in Figure 2 and difference embodiment illustrated in fig. 1 are to have replaced metal bar 2 and cancelled pallet 3 with pole plate 11.Two pole plates 11 shown in the figure are vertically fixed on the pole 12, and the distance between the pole plate is selected between can 5 to 120 centimetres, and pole 12 is made by insulant, are vertically fixed on the bottom of housing 1 and overlap substantially with the axis of housing 1.Pole plate 11 links to each other by the negative or positive electrode of lead with dc source 7, housing 1 be zero potential and described dc source another extremely link to each other.The shape of pole plate 11 should be symmetrical in the axis of pole 12.During use, can be placed directly on the pole plate 11 being sterilized article 4.
Cold plasma disinfection apparatus of the present invention can be made into vertical, horizontal two kinds.
Cold plasma disinfection apparatus of the present invention is tested in Jilin Province's Baicheng City central hospital and is identified confirmation, to wrapping in the antibacterial of the artificial culture in the parcel, uses the sterilization of this device to take out check after 5 to 10 minutes and finds antibacterial, and virus all is killed.
Cold plasma disinfection apparatus of the present invention also can be used for sterilizations such as food, tableware, textile.
Cold plasma disinfection apparatus of the present invention save the energy, pollution-free, save time, sterilization is efficiently thorough, and simple to operate, cost is low.
Claims (10)
1, a kind of cold plasma disinfection apparatus, comprise that one has the housing of switch door, the invention is characterized in described housing, be equipped with housing insulating with electrode bar that extremely links to each other of dc source, the axis of described electrode bar is positioned on the axis of described housing substantially, described housing be zero potential and described dc source another extremely link to each other, voltage between described electrode bar and the described housing is 250 to 1000 volts, and discharge current density is 0.4 to 1.5 milliampere/centimetre
2, with its insulation ground the pallet that several are used to hold article is housed around the described electrode bar and between the housing, on described housing, be provided with the pipeline and the charge valve that link to each other with vacuum pump, the vacuum behind the interior evacuation of described housing is 1.33Pa to 500Pa.
2, according to the described cold plasma disinfection apparatus of claim 1, it is characterized in that the voltage between described electrode bar and the described housing is 300 volts, discharge current density is 0.76 milliampere/centimetre
2, the vacuum in the described housing behind the evacuation is 133Pa.
3, according to claim 1 or 2 described cold plasma disinfection apparatus, it is characterized in that described housing is cylindrical, its internal diameter is 8 to 400 centimetres, height is 10 to 500 centimetres.
4, according to claim 1 or 2 described cold plasma disinfection apparatus, it is characterized in that being filled with N in the described housing
2, O
2, a kind of in the gas such as Ar, He, Ne.
5,, it is characterized in that being filled with N in the described housing according to the described cold plasma disinfection apparatus of claim 3
2, O
2, a kind of in the gas such as Ar, He, Ne.
6, a kind of cold plasma disinfection apparatus, comprise that one has the housing of switch door, the invention is characterized in described housing, be equipped with housing insulating extremely link to each other with one of dc source several are basic perpendicular and be the pole plate of axis of symmetry with it with described housing axis, described housing be zero potential and described dc source another extremely link to each other, voltage between described pole plate and the described housing is 250 to 1000 volts, and discharge current density is 0.4 to 1.5 milliampere/centimetre
2, on described housing, being provided with the pipeline and the charge valve that link to each other with vacuum pump, the vacuum in the described housing behind the evacuation is 1.33Pa to 500Pa.
7, according to the described cold plasma disinfection apparatus of claim 6, it is characterized in that the voltage between described pole plate and the described housing is 300 volts, discharge current density is 0.76 milliampere/centimetre
2, the vacuum in the described housing behind the evacuation is 133Pa.
8, according to claim 6 or 7 described cold plasma disinfection apparatus, it is characterized in that described housing is cylindrical, its internal diameter is 8 to 400 centimetres, height is 10 to 500 centimetres.
9, according to claim 6 or 7 described cold plasma disinfection apparatus, it is characterized in that being filled with N in the described housing
2, O
2, a kind of in the gas such as Ar, He, Ne.
10,, it is characterized in that being filled with N in the described housing according to the described cold plasma disinfection apparatus of claim 8
2, O
2, a kind of in the gas such as Ar, He, Ne.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94102578 CN1093284A (en) | 1994-03-14 | 1994-03-14 | Cold plasma sterilizing and disinfecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94102578 CN1093284A (en) | 1994-03-14 | 1994-03-14 | Cold plasma sterilizing and disinfecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1093284A true CN1093284A (en) | 1994-10-12 |
Family
ID=5030721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94102578 Pending CN1093284A (en) | 1994-03-14 | 1994-03-14 | Cold plasma sterilizing and disinfecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1093284A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101810871A (en) * | 2010-05-18 | 2010-08-25 | 王衍魁 | Multi-zone separately controlled plasma sterilizer |
| CN103977439A (en) * | 2014-04-15 | 2014-08-13 | 中国科学院等离子体物理研究所 | Plasma enhanced paper money disinfection sterilizer and method |
| CN104056290A (en) * | 2014-07-02 | 2014-09-24 | 太仓华德石太工业设备有限公司 | Low-pressure plasma disinfecting device |
| CN105992519A (en) * | 2013-09-16 | 2016-10-05 | 马斯公司 | Food sanitization |
| CN109222817A (en) * | 2018-11-26 | 2019-01-18 | 珠海格力电器股份有限公司 | Dish washing machine and control method thereof |
-
1994
- 1994-03-14 CN CN 94102578 patent/CN1093284A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101810871A (en) * | 2010-05-18 | 2010-08-25 | 王衍魁 | Multi-zone separately controlled plasma sterilizer |
| CN105992519A (en) * | 2013-09-16 | 2016-10-05 | 马斯公司 | Food sanitization |
| CN103977439A (en) * | 2014-04-15 | 2014-08-13 | 中国科学院等离子体物理研究所 | Plasma enhanced paper money disinfection sterilizer and method |
| CN104056290A (en) * | 2014-07-02 | 2014-09-24 | 太仓华德石太工业设备有限公司 | Low-pressure plasma disinfecting device |
| CN109222817A (en) * | 2018-11-26 | 2019-01-18 | 珠海格力电器股份有限公司 | Dish washing machine and control method thereof |
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