CN109893674A - Disinfection system and its sterilizing methods applied to freeze-drying cabinet - Google Patents
Disinfection system and its sterilizing methods applied to freeze-drying cabinet Download PDFInfo
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- CN109893674A CN109893674A CN201910173939.0A CN201910173939A CN109893674A CN 109893674 A CN109893674 A CN 109893674A CN 201910173939 A CN201910173939 A CN 201910173939A CN 109893674 A CN109893674 A CN 109893674A
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- drying cabinet
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Abstract
The invention discloses a kind of disinfection systems and its sterilizing methods applied to freeze-drying cabinet, including controller, be separately connected freeze-drying cabinet hydrogen peroxide unit and pure steam device, hydrogen peroxide unit passes through the first steam inlet pipe connection freeze-drying cabinet, pure steam device is additionally provided with exhaust pipe and drainpipe by the second steam inlet pipe connection freeze-drying cabinet, freeze-drying cabinet；First control valve is installed on the first steam inlet pipe, second control valve is installed on the second steam inlet pipe, third control valve is installed on exhaust pipe, 4th control valve is installed, hydrogen peroxide unit, pure steam device, the first control valve, the second control valve, third control valve and the 4th control valve are separately connected controller on drainpipe.The present invention improves the sterilization effect of freeze-drying cabinet and the service life of equipment.
Description
Technical field
The present invention relates to freeze-drying cabinet technical field more particularly to a kind of disinfection systems and its sterilizing side applied to freeze-drying cabinet
Method.
Background technique
Freeze-drying cabinet has a wide range of applications in fields such as bioengineering, medical industry, food industry, and freeze-drying cabinet needs to carry out
Sterilizing, the online sterilizing methods that cabinet is lyophilized at present have the methods of steam sterilizing, ethylene oxide sterilizing, vaporized hydrogen peroxide sterilizing.
Steam sterilizing is pollution-free using more, but this method pressure difference changes greatly, and may generate leakage or corrosion, and sterilize week
Phase is long；Ethylene oxide used in ethylene oxide sterilizing belongs to inflammable and explosive noxious material, has some potential safety problems, and
Sterilising cycle is long；Vaporized hydrogen peroxide sterilizes, and safety is good, and sterilising cycle is short, but supplies in the existing sterilizing installation course of work
Poor continuity, control accuracy is low, so that sterilization effect is undesirable.
Chinese patent (CN205515661U), the VHP sterilizer to sterilize for cabinet to be lyophilized, including peroxidating is equipped in shell
Hydrogen storage device and hydrogen peroxide flash distillation plant, hydrogen peroxide flash distillation plant include vaporizer case, are equipped with vaporization in vaporizer case
Calandria, vaporization calandria are equipped with heating element and temperature sensor；Input channel and efferent duct are connected on vaporizer case
Road, input channel connect hydrogen peroxide storage device by peristaltic meatering pump, are respectively arranged with electromagnetism on input channel and output channel
Valve；Heating element, solenoid valve connect controller with temperature sensor.
The above-mentioned prior art, in the way of single hydrogen peroxide sterilization, so that sterilization effect is not ideal enough.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of disinfection system and its sterilizing methods applied to freeze-drying cabinet, alternating makes
It is sterilized with hydrogen peroxide sterilization and pure steam, daily production and application hydrogen peroxide sterilization, safety is good, and sterilising cycle is short, simultaneously
Periodically sterilized using pure steam, it is pollution-free, the sterilization effect of freeze-drying cabinet is further increased, and improve the service life of equipment.
The present invention adopts the following technical solutions to achieve above-mentioned purpose:
It is a kind of applied to freeze-drying cabinet disinfection system, including controller, be separately connected freeze-drying cabinet hydrogen peroxide unit and
Pure steam device, the hydrogen peroxide unit connect the freeze-drying cabinet by the first steam inlet pipe, and the pure steam device passes through the
Two steam inlet pipes connect the freeze-drying cabinet, and the freeze-drying cabinet is additionally provided with described in the exhaust pipe for connecting first steam inlet pipe and connection
The drainpipe of second steam inlet pipe；First control valve is installed on first steam inlet pipe, is equipped on second steam inlet pipe
Two control valves are equipped with third control valve on the exhaust pipe, the 4th control valve, the peroxidating are equipped on the drainpipe
Hydrogen production device, the pure steam device, first control valve, second control valve, the third control valve and the described 4th
Control valve is separately connected the controller.
Preferably, the hydrogen peroxide unit includes the hydrogen peroxide storage device being connected and hydrogen peroxide flash distillation dress
It sets, one end of the hydrogen peroxide flash distillation plant connects the hydrogen peroxide storage device by connecting pipe, and the other end passes through
First steam inlet pipe connects the freeze-drying cabinet, and the 5th control valve, the hydrogen peroxide storage are equipped in the connecting pipe
Device, the hydrogen peroxide flash distillation plant and the 5th control valve are separately connected the controller.
Preferably, the pure steam device is pure steam generator.
Preferably, first steam inlet pipe and second steam inlet pipe are separately installed with first flowmeter and second flow
Meter, the first flowmeter and the second flowmeter are separately connected the controller.
Preferably, the drainpipe is connected separately with hydrophobic pipeline and bypass pipe far from one end of the pure steam device
Road, the hydrophobic pipeline are equipped with drain valve and the first solenoid valve, and the bypass line is equipped with second solenoid valve, the control
Device is separately connected the drain valve, first solenoid valve and the second solenoid valve.
A kind of freeze-drying cabinet VHP sterilizing methods, the controller control the hydrogen peroxide unit and first control respectively
Valve processed is opened, and the hydrogen peroxide unit is made to generate hydrogen peroxide gas, and by first steam inlet pipe to the freeze-drying cabinet
Hydrogen peroxide gas is conveyed to carry out disinfection；After time to be sterilized up at least three hours, the controller controls the third
Control valve is opened, so that the exhaust gas generated after hydrogen peroxide gas disinfection is discharged from the exhaust pipe.
Preferably, the concentration of the hydrogen peroxide gas of the hydrogen peroxide unit conveying is 200~400ppm.
A kind of freeze-drying cabinet pure steam sterilizing methods, the controller control the pure steam device and second control respectively
Valve processed is opened, and so that the pure steam device is generated pure steam, and convey pure steaming to the freeze-drying cabinet by second steam inlet pipe
Vapour is to carry out disinfection；After time to be sterilized up at least ten hours, the controller controls the 4th control valve and opens, so that
The waste water generated after pure steam disinfection is discharged from the drainpipe.
Preferably, the vapor (steam) temperature of the pure steam device conveying is not less than 121 DEG C.
Preferably, the vapor (steam) temperature of the pure steam device conveying is 130~145 DEG C.
The beneficial effects of the present invention are:
It is provided by the invention be applied to freeze-drying cabinet disinfection system and its sterilizing methods, be used alternatingly hydrogen peroxide sterilization and
Pure steam sterilizing, daily production and application hydrogen peroxide sterilization, safety is good, and sterilising cycle is short, while periodically using pure steaming weekly
Vapour sterilizing, pollution-free, the advantage of comprehensive two kinds of sterilization methods further increases the sterilization effect of freeze-drying cabinet, and improves equipment
Service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the disinfection system for being applied to freeze-drying cabinet that the embodiment of the present invention 1 provides；
Fig. 2 is the connection schematic diagram of the controller in the disinfection system for being applied to freeze-drying cabinet that the embodiment of the present invention 1 provides.
In figure, cabinet, 3- hydrogen peroxide unit, 4- pure steam device, the first steam inlet pipe of 5-, 6- the is lyophilized in 1- controller, 2-
Two steam inlet pipes, 7- exhaust pipe, 8- drainpipe, the first control valve of 9-, the second control valve of 10-, 11- third control valve, 12- the 4th are controlled
Valve processed, 13- hydrogen peroxide storage device, 14- hydrogen peroxide flash distillation plant, 15- connecting pipe, the 5th control valve of 16-, 17-
Flow meters, 18- second flowmeter, 19- hydrophobic pipeline, 20- bypass line, 21- drain valve, the first solenoid valve of 22-, 23-
Two solenoid valves.
Specific embodiment
The present invention is described in detail for 1-2 and specific embodiment with reference to the accompanying drawing.
Embodiment 1
Please referring also to Fig. 1 and Fig. 2, embodiment of the present invention provide a kind of disinfection system applied to freeze-drying cabinet, including
Controller 1, the hydrogen peroxide unit 3 and pure steam device 4 for being separately connected freeze-drying cabinet 2.Hydrogen peroxide unit 3 passes through first into vapour
The connection freeze-drying cabinet 2 of pipe 5, pure steam device 4 pass through the second steam inlet pipe 6 connection freeze-drying cabinet 2.Freeze-drying cabinet 2 be additionally provided with connection first into
The exhaust pipe 7 of steam pipe 5 and the drainpipe 8 for connecting the second steam inlet pipe 6.First control valve 9 is installed on first steam inlet pipe 5, the
Second control valve 10 is installed on two steam inlet pipes 6, third control valve 11 is installed on exhaust pipe 7, is equipped with the 4th on drainpipe 8
Control valve 12.Hydrogen peroxide unit 3, pure steam device 4, the first control valve 9, the second control valve 10, third control valve 11 and
Four control valves 12 are separately connected controller 1.
In use, freeze-drying cabinet 2 controls peroxidating by controller 1 when shutting down after completing daily daily production respectively
Hydrogen production device 3 and the first control valve 9 are opened, so that hydrogen peroxide unit 3 conveys peroxidating to freeze-drying cabinet 2 by the first steam inlet pipe 5
Hydrogen, to carry out disinfection to using hydrogen peroxide gas to freeze-drying cabinet 2, after sanitized, controller 1 controls third control
Valve 11 is opened, so that the exhaust gas generated after disinfection is discharged into atmosphere by exhaust pipe 7；Periodically once pass through control weekly simultaneously
Device 1 processed controls pure steam device 4 respectively and the second control valve 10 is opened, and pure steam device 4 is made to pass through the second steam inlet pipe 6 to freeze-drying
Cabinet 2 conveys pure steam, thus carried out disinfection using pure steam to freeze-drying cabinet 2, after sanitized, the 4th control of the control of controller 1
Valve 12 processed is opened, so that the condensed water of steam generation is discharged by drainpipe 8 in disinfecting process.Hydrogen peroxide sterilization is used alternatingly
It sterilizes with pure steam, the advantage of comprehensive two kinds of sterilization methods further improves the sterilization effect of freeze-drying cabinet, and improve equipment
Service life.
Further, in the present embodiment, hydrogen peroxide unit 3 includes 13 He of hydrogen peroxide storage device being connected
One end of hydrogen peroxide flash distillation plant 14, hydrogen peroxide flash distillation plant 14 connects hydrogen peroxide storage device by connecting pipe 15
13, the other end passes through the first steam inlet pipe 5 connection freeze-drying cabinet 2.5th control valve 16 is installed, for controlling in connecting pipe 15
Hydrogen oxide storage device 13 conveys hydrogen peroxide to hydrogen peroxide flash distillation plant 14.Hydrogen peroxide storage device 13, hydrogen peroxide
Flash distillation plant 14 and the 5th control valve 16 are separately connected controller 1.Controller 1 controls hydrogen peroxide storage device 13 and the 5th control
Valve 16 processed is opened, and then conveys hydrogen peroxide to hydrogen peroxide flash distillation plant 14 by connecting pipe 15, further makes peroxidating
Hydrogen flash distillation plant 14 conveys hydrogen peroxide gas to freeze-drying cabinet 2 by the first steam inlet pipe 5.Pure steam device 4 is pure steam
Device.First steam inlet pipe 5 and the second steam inlet pipe 6 are separately installed with first flowmeter 17 and second flowmeter 18, first flowmeter 17
Controller 1 is separately connected with second flowmeter 18.First flowmeter 17 is used to measure the circulation of hydrogen peroxide gas.Second
Meter 18 is used to measure the circulation of pure steam.
Further, in the present embodiment, drainpipe 8 is connected separately with drain pipe far from one end of pure steam device 4
Road 19 and bypass line 20.Hydrophobic pipeline 19 is equipped with drain valve 21 and the first solenoid valve 22, and bypass line 20 is equipped with second
Solenoid valve 23.Controller 1 is separately connected drain valve 21, the first solenoid valve 22 and second solenoid valve 23.Under normal circumstances, controller
1 control drain valve 21 and the first solenoid valve 22 are opened, and pure steam condensed water is made to pass sequentially through 19 row of drainpipe 8 and hydrophobic pipeline
Out.When drain valve 21 is out of order, hydrophobic pipeline 19 is in closed state, opens at this point, controller 1 controls second solenoid valve 23
It opens, pure steam condensed water passes sequentially through drainpipe 8 and bypass line 20 is discharged.Because drain valve 21 is easy to be out of order, therefore will bypass
Pipeline 20 is set as spare duct, to increase the safety and lasting use of entire pipeline.
A kind of freeze-drying cabinet VHP sterilizing methods, controller 1 controls hydrogen peroxide unit 3 respectively and the first control valve 9 is opened,
Make hydrogen peroxide unit 3 generate hydrogen peroxide gas, and by the first steam inlet pipe 5 to freeze-drying cabinet 2 convey hydrogen peroxide gas with
It carries out disinfection；After time to be sterilized up at least three hours, controller 1 controls hydrogen peroxide unit 3 and the first control valve 9 closes
It closes, and controls the unlatching of third control valve 11, so that the exhaust gas generated after hydrogen peroxide gas disinfection is discharged from exhaust pipe 7, it is drained
Afterwards, controller 1 controls third control valve 11 and closes.It is stand-by will finally 2 evacuation storage of cabinet to be lyophilized.Wherein, hydrogen peroxide unit 3
The concentration of the hydrogen peroxide gas of conveying is 200ppm.Hydrogen peroxide sterilization is to carry out under room temperature, to freeze-drying 2 equipment damage of cabinet
It is low.The hydrogen peroxide gas that hydrogen peroxide unit 3 generates is fed gas into freeze-drying cabinet 2 by power device, and non-used
Vacuum environment in freeze-drying cabinet 2 goes gas inspiration.During conveying hydrogen peroxide gas, keep being in positive pressure in freeze-drying cabinet 2
State, both keeping the pressure in freeze-drying cabinet 2 is 5Pa, vacuum occurs to achieve the purpose that prevent to be lyophilized in cabinet 2, reduces sterilizing and lose
The risk lost.
A kind of freeze-drying cabinet pure steam sterilizing methods, controller 1 controls pure steam device 4 respectively and the second control valve 10 is opened
It opens, so that pure steam device 4 is generated pure steam, and convey pure steam to freeze-drying cabinet 2 by the second steam inlet pipe 6 to carry out disinfection；To
For disinfecting time up to after at least ten hours, controller 1 controls pure steam device 4 and the second control valve 10 is closed, and controls the 4th
Control valve 12 is opened, so that the waste water generated after pure steam disinfection is discharged from drainpipe 8, after drained, the 4th control of the control of controller 1
Valve 12 processed is closed.Wherein, the vapor (steam) temperature that pure steam device 4 conveys is 121 DEG C.During conveying pure steam, freeze-drying is kept
Pressure in cabinet 2 is 0.1MPa.
Freeze-drying cabinet VHP sterilizing methods are used alone, sterilization time is short, facilitates production, but it is halfway to be easy to appear sterilizing
Situation.Freeze-drying cabinet pure steam sterilizing methods are used alone, make that the environment that cabinet 2 is chronically at high temperature and pressure is lyophilized in sterilization process
Under, it is easy that freeze-drying cabinet 2 is caused to damage, influences service life, and sterilization time is long, be unfavorable for producing.The sterilizing side cabinet VHP is lyophilized
Method and freeze-drying cabinet pure steam sterilizing methods are used alternatingly, and not only make whole sterilization time short, sterilizing thoroughly, and effectively slows down
The damage of equipment, extends the service life of equipment.
Embodiment 2
In the present embodiment, the concentration of the hydrogen peroxide gas conveyed in addition to hydrogen peroxide unit 3, conveying peroxidating hydrogen
Cabinet 2 is lyophilized in the temperature and conveying pure steam of the steam of the pressure, pure steam device conveying 4 that are lyophilized in cabinet 2 during body in the process
Except interior pressure is different, other are same as Example 1.
In the present embodiment, the concentration for the hydrogen peroxide gas that hydrogen peroxide unit 3 conveys is 300ppm.Pure steam device
The temperature of the steam of 4 conveyings is 130 DEG C.
In the present embodiment, during conveying hydrogen peroxide gas, keeping the pressure in freeze-drying cabinet 2 is 7.5Pa.It conveys pure
During steam, keeping the pressure in freeze-drying cabinet 2 is 0.15MPa.
Embodiment 3
In the present embodiment, the concentration and pure steam device 4 of the hydrogen peroxide gas conveyed in addition to hydrogen peroxide unit 3 are defeated
Except the temperature of the steam sent is different, other are same as Example 1.
In the present embodiment, the concentration for the hydrogen peroxide gas that hydrogen peroxide unit 3 conveys is 400ppm.Pure steam device
The temperature of the steam of 4 conveyings is 145 DEG C.
In the present embodiment, during conveying hydrogen peroxide gas, keeping the pressure in freeze-drying cabinet 2 is 10Pa.It conveys pure
During steam, keeping the pressure in freeze-drying cabinet 2 is 0.2MPa.
Claims (10)
1. it is a kind of applied to freeze-drying cabinet disinfection system, which is characterized in that including controller, be separately connected freeze-drying cabinet peroxidating
Hydrogen production device and pure steam device, the hydrogen peroxide unit connect the freeze-drying cabinet, the pure steam dress by the first steam inlet pipe
Set and the freeze-drying cabinet connected by the second steam inlet pipe, the freeze-drying cabinet be additionally provided with the exhaust pipe for connecting first steam inlet pipe and
Connect the drainpipe of second steam inlet pipe；First control valve is installed, on second steam inlet pipe on first steam inlet pipe
Second control valve is installed, third control valve is installed on the exhaust pipe, the 4th control valve, institute are installed on the drainpipe
State hydrogen peroxide unit, the pure steam device, first control valve, second control valve, the third control valve and
4th control valve is separately connected the controller.
2. the disinfection system according to claim 1 for being applied to freeze-drying cabinet, which is characterized in that the hydrogen peroxide unit packet
The hydrogen peroxide storage device and hydrogen peroxide flash distillation plant being connected are included, one end of the hydrogen peroxide flash distillation plant passes through company
Adapter tube road connects the hydrogen peroxide storage device, and the other end connects the freeze-drying cabinet, the company by first steam inlet pipe
5th control valve, the hydrogen peroxide storage device, the hydrogen peroxide flash distillation plant and the described 5th are installed on adapter tube road
Control valve is separately connected the controller.
3. the disinfection system according to claim 1 for being applied to freeze-drying cabinet, which is characterized in that the pure steam device is pure
Steam generator.
4. the disinfection system according to claim 1 for being applied to freeze-drying cabinet, which is characterized in that first steam inlet pipe and institute
It states the second steam inlet pipe and is separately installed with first flowmeter and second flowmeter, the first flowmeter and second flow score
The controller is not connected.
5. the disinfection system according to claim 1 for being applied to freeze-drying cabinet, which is characterized in that the drainpipe is far from described
One end of pure steam device is connected separately with hydrophobic pipeline and bypass line, and the hydrophobic pipeline is equipped with drain valve and the first electricity
Magnet valve, the bypass line are equipped with second solenoid valve, and the controller is separately connected the drain valve, first solenoid valve
With the second solenoid valve.
6. a kind of freeze-drying cabinet VHP sterilizing methods carried out using disinfection system as claimed in any one of claims 1 to 5, special
Sign is that the controller controls the hydrogen peroxide unit respectively and first control valve is opened, and makes the hydrogen peroxide
Device generates hydrogen peroxide gas, and conveys hydrogen peroxide gas to the freeze-drying cabinet by first steam inlet pipe to disappear
Poison；After time to be sterilized up at least three hours, the controller controls the third control valve and opens, so that peroxidating hydrogen
The exhaust gas generated after body disinfection is discharged from the exhaust pipe.
7. freeze-drying cabinet VHP sterilizing methods according to claim 6, which is characterized in that the hydrogen peroxide unit conveying
The concentration of hydrogen peroxide gas is 200~400ppm.
8. a kind of freeze-drying cabinet pure steam sterilizing methods carried out using disinfection system as claimed in any one of claims 1 to 5,
It is characterized in that, the controller controls the pure steam device respectively and second control valve is opened, and fills the pure steam
Generation pure steam is set, and pure steam is conveyed to the freeze-drying cabinet to carry out disinfection by second steam inlet pipe；Time to be sterilized
Up to after at least ten hours, the controller controls the 4th control valve and opens, so that the waste water generated after pure steam disinfection
It is discharged from the drainpipe.
9. freeze-drying cabinet pure steam sterilizing methods according to claim 8, which is characterized in that the pure steam device conveying
Vapor (steam) temperature is not less than 121 DEG C.
10. freeze-drying cabinet pure steam sterilizing methods according to claim 8, which is characterized in that the pure steam device conveying
Vapor (steam) temperature be 130~145 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173939.0A CN109893674A (en) | 2019-03-08 | 2019-03-08 | Disinfection system and its sterilizing methods applied to freeze-drying cabinet |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910173939.0A CN109893674A (en) | 2019-03-08 | 2019-03-08 | Disinfection system and its sterilizing methods applied to freeze-drying cabinet |
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| CN109893674A true CN109893674A (en) | 2019-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910173939.0A Pending CN109893674A (en) | 2019-03-08 | 2019-03-08 | Disinfection system and its sterilizing methods applied to freeze-drying cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023228073A1 (en) * | 2022-05-23 | 2023-11-30 | Tuttnauer Ltd. | Hydrogene peroxide and steam sterilizer |
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| CN204521663U (en) * | 2014-12-26 | 2015-08-05 | 张家港市环宇制药设备有限公司 | High/low temperature sterilizing cabinet |
| US20150343107A1 (en) * | 2014-06-03 | 2015-12-03 | Steris Europe, Inc. Suomen Sivuliike | Method and device for generating steam and gaseous hydrogen peroxide |
| CN209967136U (en) * | 2019-03-08 | 2020-01-21 | 广西梧州制药（集团）股份有限公司 | Sterilization system applied to freeze-drying cabinet |
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2019
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| CN102892435A (en) * | 2010-03-17 | 2013-01-23 | 株式会社龙腾 | Sterilization apparatus and method using hydrogen peroxide |
| CN103127538A (en) * | 2011-11-28 | 2013-06-05 | 钱军 | Multi-purpose sterilization method and multifunctional sterilizer thereof |
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| WO2023228073A1 (en) * | 2022-05-23 | 2023-11-30 | Tuttnauer Ltd. | Hydrogene peroxide and steam sterilizer |
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