CN103520748B - The multistage vacuum extractor of three oxygen low temperature sterilizer and method - Google Patents
The multistage vacuum extractor of three oxygen low temperature sterilizer and method Download PDFInfo
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- CN103520748B CN103520748B CN201310489722.3A CN201310489722A CN103520748B CN 103520748 B CN103520748 B CN 103520748B CN 201310489722 A CN201310489722 A CN 201310489722A CN 103520748 B CN103520748 B CN 103520748B
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- vacuum
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- sterilizing cabin
- electromagnetic valve
- low temperature
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000001301 oxygen Substances 0.000 title claims abstract description 31
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000001954 sterilising effect Effects 0.000 claims abstract description 46
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 13
- 238000005949 ozonolysis reaction Methods 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 3
- 230000003647 oxidation Effects 0.000 abstract description 3
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003115 biocidal effect Effects 0.000 description 3
- 239000003139 biocide Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003421 catalytic decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- -1 inflammable Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007666 vacuum forming Methods 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
- 239000012224 working solution Substances 0.000 description 1
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- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The multistage vacuum extractor of three oxygen low temperature sterilizer and method, belong to Sterilization and Disinfection Equipment technical field.Comprise the one-level that is in parallel by pipeline without oily vacuum extractor and secondary oil-containing vacuum extractor, after two-stage vacuum extractor is in parallel, one end is connected with sterilizing cabin, and the other end is connected with ozonolysis equipment, and drying device is connected with sterilizing cabin by pipeline.First adopt oilless vacuum pump that the most of ozone gas in sterilizing cabin is extracted out, and then inject dry aseptic air, repeatedly several times after vacuum pumping method, most ozone gas in sterilizing cabin can be extracted out, then use, containing oil vacuum pump, the vacuum in sterilizing cabin is dropped to below 100Pa.Adopt the cascade of two kinds of evacuation modes, the vacuum reached in sterilizing cabin lower than 100Pa can be made, avoid again the decline of the vacuum capability caused because extraction ozone gas causes the oxidation of Seal Oil containing oil vacuum pump.
Description
Technical field
The multistage vacuum extractor of three oxygen low temperature sterilizer and method, belong to Sterilization and Disinfection Equipment technical field.
Background technology
Medical Sterilization Equipment is the indispensable facility of modern hospital, plays an important role in hospital infection control work.Three oxygen low temperature sterilizer adopt microcomputer program automatically to control, and are made up of cabinet, vacuum system, three oxygen generation injected systems, three oxygen activation systems, three oxygen decomposing systems, control system, with three oxygen for biocide, are aided with sterilizing activation, can kill bacteria spore.
Vacuum system plays a crucial factor for the rapid diffusion of biocide, and the quick disperse of biocide can be made to arrive whole sterilizing cabin.Vacuum values absolute pressure 50Pa ~ 100Pa needed for three oxygen low temperature sterilizer.
Vacuum pump conventional on the market at present comprises oilless vacuum pump, oil-containing rotary-vane vaccum pump, water-ring vacuum pump etc., and this several vacuum pump respectively has pluses and minuses:
(1) oilless vacuum pump be a kind of make lubrication without the need to any oil can the oil-sealed rotary pump of operation.It has that structure is simple, processing ease, easy to maintenance, the advantage such as do not pollute the environment, and coordinates corrosion-proof lining to extract ozone gas.But oilless vacuum pump is low vacuum compared with oil pump, the shortcomings such as rate of air sucked in required is little.
(2) oil-containing rotary-vane vaccum pump is the basic equipment obtaining vacuum, and the evacuation being applicable to closed system uses.As vacuum packaging, vacuum forming, vacuum attraction, there is the advantage that vacuum is high, usually can arrive below 100Pa.But water or other liquid can not be extracted containing oil vacuum pump, can not extract explosive, inflammable, oxygen content is too high, corrosive gas, cannot directly use in three oxygen low temperature sterilizer.
(3) water-ring vacuum pump is a kind of black vacuum pump, and its obtainable end vacuum is 2000 ~ 4000Pa, and its advantage is that air-breathing is even, and stable working is reliable, simple to operate, easy to maintenance.Its shortcoming need be equipped with recirculated water, low vacuum, and by the restriction of working solution saturated vapour pressure, to work liquid with water, ultimate pressure can only reach 2000 ~ 4000Pa.Maximum shortcoming is that gas is discharged cannot carry out catalytic decomposition with recirculated water.
In sum, conventional at present vacuum pump directly cannot meet the demand of three oxygen low temperature sterilizer extracting vacuum degree.
Summary of the invention
The technical problem to be solved in the present invention is: overcome deficiency existing in prior art, there is provided a kind of by oilless vacuum pump with containing oil vacuum pump cascade, utilize the advantage of two kinds of vacuum pumps, the vacuum reached in sterilizing cabin lower than 100Pa can be made, the multistage vacuum extractor of the three oxygen low temperature sterilizer avoiding again the vacuum capability caused because extraction ozone gas causes the oxidation of Seal Oil containing oil vacuum pump to decline and method.
The technical solution adopted for the present invention to solve the technical problems is: the multistage vacuum extractor of this three oxygen low temperature sterilizer, it is characterized in that: comprise the one-level that is in parallel by pipeline without oily vacuum extractor and secondary oil-containing vacuum extractor, after two-stage vacuum extractor is in parallel, one end is connected with sterilizing cabin, the other end is connected with ozonolysis equipment, and drying device is connected with sterilizing cabin by pipeline.
Described one-level comprises the one-level vacuum solenoid, one-level oilless vacuum pump and the one-level vacuum line that are in series without oily vacuum extractor.
Described secondary oil-containing vacuum extractor comprise be in series secondary vacuum electromagnetic valve, secondary is containing oil vacuum pump and secondary vacuum pipeline.
Described ozonolysis equipment is ozone decomposed device.
Described drying device comprises the drying pipeline be in series, dry electromagnetic valve and device for drying and filtering.
Utilize the multistage vacuum extractor of three oxygen low temperature sterilizer described in claim 1 to a method for three oxygen low temperature sterilizer evacuation, it is characterized in that: comprise the following steps:
Mode of operation 1: when in sterilizing cabin during ozone free gas:
1) one-level vacuum solenoid cuts out, and secondary vacuum electromagnetic valve is opened, and secondary is containing oil vacuum pump work, dry closed electromagnetic valve, judges that whether sterilizing cabin internal pressure is lower than preset value, if lower than preset value, repeat step 1), if reach preset value, evacuation terminates;
Working mould 2: when having ozone gas in sterilizing cabin:
A), one-level vacuum solenoid is opened, secondary vacuum closed electromagnetic valve, dry closed electromagnetic valve, judge that whether sterilizing cabin internal pressure is lower than the one-level vacuum pressure value set, if lower than the one-level vacuum pressure value of setting, repeat step a), if reach the one-level vacuum pressure value of setting, enter step b);
B), dry electromagnetic valve opens, and judges whether sterilizing cabin internal pressure rises to preset value, if rise to preset value, judges whether to reach preset loop number of times, if reach preset loop number of times, enter step d), otherwise enter step c);
If c) sterilizing cabin internal pressure does not reach preset value, repeat step a) and step b) n time until reach preset value;
D), one-level vacuum solenoid close, secondary vacuum electromagnetic valve is opened, dry closed electromagnetic valve, and judge whether sterilizing cabin internal pressure reaches the secondary vacuum force value of setting, if reach the secondary vacuum force value of setting, evacuation terminates; If lower than the secondary vacuum force value of setting, repeat step d) until reach the secondary vacuum force value of setting.
Operation principle: first adopt oilless vacuum pump that the most of ozone gas in sterilizing cabin is extracted out, and then inject dry aseptic air, repeatedly several times after, the most ozone gas in sterilizing cabin can be extracted out, then use, containing oil vacuum pump, the vacuum in sterilizing cabin is dropped to below 100Pa.
Compared with prior art, the beneficial effect that the multistage vacuum extractor of three oxygen low temperature sterilizer of the present invention has is: by one-level oil-free vacuum pumping system and secondary oil-containing vacuum pump system parallel cascade, system structure is simple, safe and reliable; Make full use of the advantage of two kinds of vacuum pumps, both can make the vacuum reached in sterilizing cabin lower than 100Pa, avoid again the decline of the vacuum capability caused because extraction ozone gas causes the oxidation of Seal Oil containing oil vacuum pump.Vacuum pumping method divides in sterilizing cabin and has ozone gas two kinds of mode of operations in ozone free gas and sterilizing cabin, reduces the pumpdown time, raises the efficiency.Meet three oxygen low temperature sterilizer preferably to the demand of vacuum.
When sterilizing hold capacity is excessive, when vacuum pump flow rate is less, the mode of the vacuum pump cascade of three or more level can be adopted to increase work efficiency.
Accompanying drawing explanation
Fig. 1 is the structure principle chart of the multistage vacuum extractor of three oxygen low temperature sterilizer.
Fig. 2 is the evacuation FB(flow block) of three oxygen low temperature sterilizer mode of operations 1.
Fig. 3 is the evacuation FB(flow block) of three oxygen low temperature sterilizer mode of operations 2.
Wherein: 1, one-level vacuum solenoid 2, one-level oilless vacuum pump 3, one-level vacuum line 4, secondary vacuum electromagnetic valve 5, secondary are containing oil vacuum pump 6, secondary vacuum pipeline 7, ozone decomposed device 8, dry electromagnetic valve 9, device for drying and filtering 10, drying pipeline.
Detailed description of the invention
Fig. 1-3 is most preferred embodiments of the present invention, is described further the multistage vacuum extractor of three oxygen low temperature sterilizer of the present invention and method below in conjunction with accompanying drawing 1-3.
With reference to accompanying drawing 1: the multistage vacuum extractor of this three oxygen low temperature sterilizer, comprise one-level without oily vacuum extractor and secondary oil-containing vacuum extractor, one-level comprises the one-level vacuum solenoid 1, one-level oilless vacuum pump 2 and the one-level vacuum line 3 that are in series without oily vacuum extractor, one-level vacuum solenoid 1 and one-level oilless vacuum pump 2 are in series by one-level vacuum line 3.Secondary oil-containing vacuum extractor comprise be in series secondary vacuum electromagnetic valve 4, secondary containing oil vacuum pump 5 and secondary vacuum pipeline 6, secondary vacuum electromagnetic valve 4 and secondary are in series by secondary vacuum pipeline 6 containing oil vacuum pump 5.One-level vacuum solenoid 1 and secondary vacuum electromagnetic valve 4 one end that is in parallel is connected with sterilizing cabin, one-level oilless vacuum pump 2 and secondary are connected with ozone decomposed device 7 containing oil vacuum pump 5 one end that is in parallel, and device for drying and filtering 9 is connected after dry electromagnetic valve 8 by drying pipeline 10 and is connected with sterilizing cabin.
Multistage vacuum extractor vacuum pumping method with reference to accompanying drawing 2: three oxygen low temperature sterilizer comprises following two kinds of mode of operations:
Mode of operation 1: when in sterilizing cabin during ozone free gas:
1): one-level vacuum solenoid 1 cuts out, secondary vacuum electromagnetic valve 4 is opened, and secondary works containing oil vacuum pump 5, dry electromagnetic valve 8 cuts out, and judges that whether sterilizing cabin internal pressure is lower than preset value, if lower than preset value, repeat step 1), if reach preset value, evacuation terminates;
Working mould 2: when having ozone gas in sterilizing cabin:
A) one-level vacuum solenoid 1 is opened, secondary vacuum electromagnetic valve 4 cuts out, dry electromagnetic valve 8 cuts out, judge that whether sterilizing cabin internal pressure is lower than the one-level vacuum pressure value set, if reach the one-level vacuum pressure value of setting, enter step b), if lower than the one-level vacuum pressure value set, repeat step a);
B) dry electromagnetic valve 8 is opened, and judges whether sterilizing cabin internal pressure rises to preset value, if rise to preset value, judges whether to reach preset loop number of times, if reach preset loop number of times, enters step d), otherwise enter step c);
If c) sterilizing cabin internal pressure does not reach preset value, repeat step a) and step b) n time until reach preset value;
D) one-level vacuum solenoid 1 cuts out, and secondary vacuum electromagnetic valve 4 is opened, and dry electromagnetic valve 8 cuts out, and judge whether sterilizing cabin internal pressure reaches the secondary vacuum force value of setting, if reach the secondary vacuum force value of setting, evacuation terminates; If lower than the secondary vacuum force value of setting, repeat step d) until reach the secondary vacuum force value of setting.
Except the one-level oilless vacuum pump 2 described in above-described embodiment and secondary work asynchronously mode except with respective one-level vacuum solenoid 1 and secondary vacuum electromagnetic valve 4 containing oil vacuum pump 5 during sterilizing, need one-level oilless vacuum pump 2 and secondary can also work during sterilizing containing oil vacuum pump 5 according to design always.
The above is only preferred embodiment of the present invention, and be not restriction the present invention being made to other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the Equivalent embodiments of equivalent variations.But everyly do not depart from technical solution of the present invention content, any simple modification, equivalent variations and the remodeling done above embodiment according to technical spirit of the present invention, still belong to the protection domain of technical solution of the present invention.
Claims (6)
1. the multistage vacuum extractor of three oxygen low temperature sterilizer, it is characterized in that: comprise the one-level that is in parallel by pipeline without oily vacuum extractor and secondary oil-containing vacuum extractor, after two-stage vacuum extractor is in parallel, one end is connected with sterilizing cabin, the other end is connected with ozonolysis equipment, and drying device is connected with sterilizing cabin by pipeline.
2. the multistage vacuum extractor of three oxygen low temperature sterilizer according to claim 1, is characterized in that: described one-level comprises the one-level vacuum solenoid (1), one-level oilless vacuum pump (2) and the one-level vacuum line (3) that are in series without oily vacuum extractor.
3. the multistage vacuum extractor of three oxygen low temperature sterilizer according to claim 1, is characterized in that: described secondary oil-containing vacuum extractor comprise be in series secondary vacuum electromagnetic valve (4), secondary is containing oil vacuum pump (5) and secondary vacuum pipeline (6).
4. the multistage vacuum extractor of three oxygen low temperature sterilizer according to claim 1, is characterized in that: described ozonolysis equipment is ozone decomposed device (7).
5. the multistage vacuum extractor of three oxygen low temperature sterilizer according to claim 1, is characterized in that: described drying device comprises the drying pipeline (10) be in series, dry electromagnetic valve (8) and device for drying and filtering (9).
6. utilize device described in claim 1 to a method for three oxygen low temperature sterilizer evacuation, it is characterized in that: comprise the following steps:
Mode of operation 1: when in sterilizing cabin during ozone free gas:
1), one-level vacuum solenoid (1) cuts out, secondary vacuum electromagnetic valve (4) is opened, secondary is containing oil vacuum pump (5) work, dry electromagnetic valve (8) is closed, judge that whether sterilizing cabin internal pressure is lower than preset value, if lower than preset value, repeat step 1), if reach preset value, evacuation terminates;
Working mould 2: when having ozone gas in sterilizing cabin:
A), one-level vacuum solenoid (1) is opened, secondary vacuum electromagnetic valve (4) cuts out, dry electromagnetic valve (8) is closed, judge that whether sterilizing cabin internal pressure is lower than the one-level vacuum pressure value set, if lower than the one-level vacuum pressure value of setting, repeat step a), if reach the one-level vacuum pressure value of setting, enter step b);
B), dry electromagnetic valve (8) opens, and judges whether sterilizing cabin internal pressure rises to preset value, if rise to preset value, judges whether to reach preset loop number of times, if reach preset loop number of times, enter step d), otherwise enter c);
If c) sterilizing cabin internal pressure does not reach preset value, repeat step a) and b) n time until reach preset value;
D), one-level vacuum solenoid (1) cuts out, secondary vacuum electromagnetic valve (4) is opened, and dry electromagnetic valve (8) cuts out, and judges whether sterilizing cabin internal pressure reaches the secondary vacuum force value of setting, if reach the secondary vacuum force value of setting, evacuation terminates; If lower than the secondary vacuum force value of setting, repeat step d) until reach the secondary vacuum force value of setting.
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| CN107715130B (en) * | 2017-09-13 | 2020-04-10 | 浙江大学 | Pulsation vacuum sterilizer and method for vacuumizing inner pot by vacuum tank auxiliary vacuum pump |
| CN110720582A (en) * | 2019-09-23 | 2020-01-24 | 厦门中纺大化纤材料有限公司 | Efficient sterilization method for vacuum circulating ozone |
| CN114306692A (en) * | 2021-12-30 | 2022-04-12 | 老肯医疗科技股份有限公司 | Hydrogen peroxide plasma sterilizer capable of efficiently sterilizing and sterilization method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203591464U (en) * | 2013-10-18 | 2014-05-14 | 淄博康元医疗器械有限公司 | Multi-stage vacuumizing device for low-temperature ozone sterilizer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10258113A (en) * | 1997-03-18 | 1998-09-29 | Miura Co Ltd | Sterilization method using ozone |
| US7128872B2 (en) * | 1999-04-30 | 2006-10-31 | Tso3 Inc. | Method and apparatus for ozone sterilization |
| JP3704129B2 (en) * | 2003-03-10 | 2005-10-05 | ヤマト科学株式会社 | Plasma sterilization method |
| US7749330B2 (en) * | 2007-03-30 | 2010-07-06 | Ethicon, Inc. | Washer and decontaminator with lid control |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203591464U (en) * | 2013-10-18 | 2014-05-14 | 淄博康元医疗器械有限公司 | Multi-stage vacuumizing device for low-temperature ozone sterilizer |
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