CN208611398U - Low-temperature steam formaldehyde bactericidal unit - Google Patents
Low-temperature steam formaldehyde bactericidal unit Download PDFInfo
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- CN208611398U CN208611398U CN201721675534.XU CN201721675534U CN208611398U CN 208611398 U CN208611398 U CN 208611398U CN 201721675534 U CN201721675534 U CN 201721675534U CN 208611398 U CN208611398 U CN 208611398U
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
- A61L2/204—Formaldehyde
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
- A61L2/04—Heat
- A61L2/06—Hot gas
- A61L2/07—Steam
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/24—Apparatus using programmed or automatic operation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/24—Medical instruments, e.g. endoscopes, catheters, sharps
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- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The utility model relates to a kind of low-temperature steam formaldehyde bactericidal units.In the low-temperature steam formaldehyde bactericidal unit using the vacuum pump of hydrolock, prevent formaldehyde from dissolving in water shutoff, and without the need for a large amount of water of dilution formaldehyde, to reduce operating cost.Low-temperature steam formaldehyde bactericidal unit has: sterilizing slot (2), receiving sterilizing object；Gas in the sterilizing slot (2) is attracted discharge to outside by the vacuum pump (3) of hydrolock；And catalyst reactor (6), it is set to the exhaust line (9) for leading to vacuum pump (3) from sterilizing slot (2), and decomposing formaldehyde.It is preferred that the flow path by exhaust line (9) changes, allows hand over the gas in slot (2) that will sterilize and be discharged or be not discharged via catalytic reactor (6) via catalytic reactor (6).
Description
Technical field
The utility model relates to a kind of low-temperature steam formaldehyde (LTSF) bactericidal units.
Background technique
All the time, as following patent documents 1 are open, it is known that in sterilizing slot under vacuum, using containing first
The low-temperature steam formaldehyde bactericidal unit that the vapor of aldehyde sterilizes to sterilizing object.In the apparatus, due to handling under vacuum
Vapor, therefore be suitble to use hydrolock rather than the vacuum pump of dry type.
Using the vacuum pump of hydrolock, dissolving in sealing water has formaldehyde, so even with a large amount of water
Dilution, can still make formaldehyde flow away, therefore not preferred from the viewpoint of environmental protection.In addition, a large amount of water-reducible using formaldehyde
In the case of, the operating cost raising more using quantitative change of water.It should be noted that also proposed following disclosed Patent Document 2
Depollution of environment microreactor system, but substantially, it is suitable for using ethylene oxide gas (or the mixing with carbon dioxide gas
Gas) bactericidal unit, the use (the 0003rd, 0008 section of patent document 2) of the vacuum pump of hydrolock is also negated, is not energy
Enough it is applied to the system of low-temperature steam formaldehyde bactericidal unit.
Citation
Patent document
Patent document 1: Japanese Unexamined Patent Publication 2014-235030 bulletin (the 0002nd, 0026,0036 section)
Patent document 2: Japanese Unexamined Patent Publication 2005-254194 bulletin (Fig. 1)
Utility model content
Utility model project to be solved
Project to be solved in the utility model is, sterilizes and fills in the low-temperature steam formaldehyde of the vacuum pump using hydrolock
In setting, provide the effect on environment for preventing formaldehyde from dissolving in sealing water, draining small device.In addition, the project of the utility model
It is to provide the device that operating cost is reduced without the need for diluted a large amount of water.
Solution for solving the problem
The utility model is to complete in order to solve the problem, and utility model described in first scheme is a kind of low temperature
Steam formaldehyde bactericidal unit, which is characterized in that have: sterilizing slot, receiving sterilizing object；The vacuum pump of hydrolock, this is gone out
Gas in bacterium slot attracts discharge to outside；And catalyst reactor, it is set to from the sterilizing slot and leads to the vacuum
The exhaust line of pump, and decomposing formaldehyde.
It is anti-to be provided with catalyst in the exhaust line for leading to vacuum pump from sterilizing slot for the utility model according to first scheme
Answer device and can decomposing formaldehyde, therefore can prevent formaldehyde from flowing into vacuum pump.Thereby, it is possible to prevent formaldehyde to the close of vacuum pump
It is dissolved in water shutoff, draining.In addition, without the need for a large amount of water of dilution formaldehyde, additionally it is possible to realize the reduction of operating cost.
Utility model described in alternative plan is special based on low-temperature steam formaldehyde bactericidal unit described in first scheme
Sign is, is changed by the flow path of the exhaust line, allows hand over the gas in the sterilizing slot is anti-via the catalyst
Device is answered to be discharged or be not discharged via the catalyst reactor.
The utility model according to alternative plan can be cut when utilization vacuum pump will sterilize the discharge of the gas in slot
It changes and is discharged or is not discharged via catalyst reactor via catalyst reactor.The case where being discharged via catalyst reactor
Under, can in catalyst reactor decomposing formaldehyde, in the case where not being discharged via catalyst reactor, can be not passed through
Catalyst reactor correspondingly reduces the pressure loss, to realize the shortening of evacuation time.
Utility model described in third program is special based on low-temperature steam formaldehyde bactericidal unit described in alternative plan
Sign is that the low-temperature steam formaldehyde bactericidal unit includes and successively runs following process: institute is repeated in gas displacement process
It states the decompression in sterilizing slot and the multiple pressure realized is imported by formaldehyde gas；Sterilization process, will be warm in sterilizing in the sterilizing slot
Degree is lower to keep sterilization time；Steam is detached from process, the decompression in the sterilizing slot is repeated and by vapor importing realization
Multiple pressure；And air is detached from process, the decompression being repeated in the sterilizing slot and the multiple pressure that realization is imported by air,
The gas displacement process and the steam are detached from process, when carrying out the decompression in the sterilizing slot, by the sterilizing
Gas in slot is discharged via the catalyst reactor.
The utility model according to third program, by successively including and running gas displacement process, sterilization process, steaming
Qi exhaustion is detached from process from process and air, can be realized pre-treatment, sterilizing and post-processing.In addition, at least in gas displacement
Process and steam are detached from process, when being depressurized in the slot that sterilizes, by the way that the gas to sterilize in slot is passed through catalyst reactor,
Formaldehyde decomposition can be made innoxious.
Utility model described in fourth program is using low-temperature steam formaldehyde bactericidal unit described in second or third program as base
Plinth, which is characterized in that the exhaust line from the sterilizing slot is converged again after branching into first row gas circuit and second row gas circuit
Merging is connect with the vacuum pump, is disposed with inlet valve, catalyst reactor, communicating valve, tank in the first row gas circuit
And outlet valve, it allows hand over and is vented via the first row gas circuit or is vented via the second row gas circuit, via described
When first row gas circuit is vented, the outlet valve is opened to make institute in the state of closing the inlet valve and the communicating valve
Decompression in tank is stated, it is described to make that the inlet valve and the communicating valve are then opened in the state of closing the outlet valve
Sterilize slot in decompression, later again by the inlet valve and the communicating valve closing in the state of open the outlet valve to
Make decompression in the tank.
The utility model according to fourth program, by tank and sterilizing slot (specifically, tank and catalyst reactor,
And catalyst reactor and sterilizing slot) connection cutting in the state of, be connected to tank with vacuum pump to make tank is interior to depressurize, so
Afterwards in the state of cutting off the connection of tank and vacuum pump, tank is made to be connected to make decompression in sterilizing slot with sterilizing slot.As a result, with
It will directly be compared the case where decompression in sterilizing slot using vacuum pump, can be realized the reduction of the pressure loss.In addition, by by expectation
Carry out tank in decompression, when vacuum pressure can be prevented to be applied to catalyst reactor breakage (such as catalyst from reaction hold
Device falls off).And then it is secondary in the state of cutting off the connection of tank and sterilizing slot, made by being connected to tank with vacuum pump
Decompression, vapor remaining in tank can be discharged in tank.
Utility model described in 5th scheme is with the sterilizing of low-temperature steam formaldehyde described in any one of first to fourth scheme
Based on device, which is characterized in that the catalyst reactor is the double-sleeve structure being made of inner barrel and outer barrel, in inner cylinder
It is provided with catalyst and outer cylinder is heated up using heater, the gas in the sterilizing slot is by between inner cylinder and outer cylinder
It is passed through in inner cylinder behind gap.
According to utility model described in the 5th scheme, catalyst reactor is the dual pipe knot being made of inner barrel and outer barrel
Gas in sterilizing slot is passed through the catalyst in inner cylinder, therefore energy by structure behind the gap being passed through between inner cylinder and outer cylinder
Enough become small-sized structure.In addition, by making outer cylinder heat up using heater, gas heating in sterilizing slot can be made simultaneously
To catalyst transport, so as to be reliably achieved the decomposition of the formaldehyde at catalyst.On the other hand, direct without using heater
So that catalyst itself is heated up, therefore the on fire of formaldehyde can be prevented.
Also, utility model described in the 6th scheme is with low-temperature steam formaldehyde described in any one of first to the 5th scheme
Based on bactericidal unit, which is characterized in that the gas in the sterilizing slot is being mixed into after external air, is passed through institute
State catalyst reactor.
The decomposition reaction of formaldehyde needs oxygen, if realizing sterilizing in the case where excluding the vacuum after the air in sterilizing slot,
When being vented out of sterilizing slot, even if formaldehyde is passed through catalyst reactor, it is also possible to not carried out because of hypoxgia desired
It decomposes.But the utility model according to the 6th scheme, air is mixed into the gas in sterilizing slot and is passed through catalyst
Reactor, therefore the decomposition of formaldehyde can be reliably achieved.
Utility model effect
It can for using the low-temperature steam formaldehyde bactericidal unit of vacuum pump of hydrolock according to the utility model
Realize the small device of the effect on environment for preventing formaldehyde from dissolving in sealing water, draining.In addition, without the need for diluted a large amount of
Water, so as to reduce operating cost.
Detailed description of the invention
Fig. 1 is the synoptic diagram of the low-temperature steam formaldehyde bactericidal unit of the one embodiment for showing the utility model, by one
Divide and is shown in a manner of section.
Fig. 2 is the synoptic diagram for showing an example of the operating process of low-temperature steam formaldehyde bactericidal unit of Fig. 1, shows sterilizing
Pressure P in slot and the relationship by time t.
Fig. 3 is the figure for showing the variation of low-temperature steam formaldehyde bactericidal unit of Fig. 1.
Fig. 4 is the summary section view for showing an example of catalyst reactor of the low-temperature steam formaldehyde bactericidal unit for Fig. 1
Figure.
Fig. 5 is that another summary of the catalyst reactor for showing the low-temperature steam formaldehyde bactericidal unit for Fig. 1 is cutd open
View.
Description of symbols
1 low-temperature steam formaldehyde bactericidal unit；
2 sterilizing slots；
3 vacuum pumps (3a: air entry, 3b: exhaust outlet)；
The introducing mechanism of 4 vapor and formaldehyde gas；
5 extraneous gas introducing mechanisms；
6 catalyst reactors；
7 pressure sensors；
8 temperature sensors；
9 exhaust lines (9a: first row gas circuit, 9b: second row gas circuit)；
10 inlet valves；
11 outlet valves；
12 by-passing valves；
13 water pots；
14 formalin tanks；
15 gasifiers；
16 for fluid path (16a: the first for fluid path, 16b: the second for fluid path)；
17 first supplying valves；
18 second supplying valves；
19 access；
20 for gas circuit；
21 air filters；
22 steam supply valves；
23 communicating valves；
24 tanks；
25 inner cylinders；
26 outer cylinders；
27 catalyst；
28 end walls；
29 interconnecting parts；
30 end walls (30a: through hole, 30b: through hole, 30c: airport)；
P0 atmospheric pressure；
P1 minimum pressure；
PL depressurizes goal pressure；
PU presses goal pressure again；
S1 vacuumizes process；
S2 steam replaces process；
S3 gas displacement process；
S4 sterilization process；
S5 steam is detached from process；
S6 air is detached from process.
Specific embodiment
Hereinafter, specific embodiment of the utility model is described in detail based on attached drawing.
Fig. 1 is the synoptic diagram of the low-temperature steam formaldehyde bactericidal unit of the one embodiment for showing the utility model, by one
Divide and is shown in a manner of section.
The low-temperature steam formaldehyde bactericidal unit 1 of the present embodiment has: sterilizing slot 2, receiving sterilizing object；The vacuum of hydrolock
Gas in the sterilizing slot 2 is attracted discharge to outside by pump 3；The introducing mechanism 4 of vapor and formaldehyde gas, to going out
Vapor and formaldehyde gas are imported in bacterium slot 2；Extraneous gas introducing mechanism 5 imports extraneous gas into sterilizing slot 2；It urges
Agent reactor 6 decomposes the formaldehyde led to outside sterilizing slot 2；And control mechanism (illustration omitted).
Sterilizing, there is no particular restriction for object, typically medical apparatus as pliers, hose.Sterilizing object can also put
Enter to be contained in the state of the packaging material of sterilizing in sterilizing slot 2.
The slot 2 that sterilizes is the hollow container for being resistant to the decompression of inner space, is typically formed substantially rectangular box-like.
Sterilizing slot 2 is configured to be opened and closed by door (illustration omitted).By opening door, sterilizing object can be carried out relative to sterilizing slot 2
Be put into taking-up, by close door, can will sterilizing slot 2 hermetic close.
It is configured to heat up using heater (illustration omitted) in sterilizing slot 2.The structure of the heater of sterilizing slot 2 has no
Especially limitation, such as it is also possible to vapour jacket, but in the present embodiment, the heating tape of the outer wall by being set to sterilizing slot 2
(heat tape) is constituted.By controlling the switch or capacity of heater, preferred temperature can will be maintained in sterilizing slot 2.
Sterilizing slot 2 is provided with the pressure sensor 7 detected to the pressure to sterilize in slot 2 and in sterilizing slot 2
The temperature sensor 8 that is detected of temperature.Detailed content is aftermentioned, and the detection pressure based on pressure sensor 7 can be controlled and be gone out
Decompression or multiple pressure in bacterium slot 2, the detection temperature based on temperature sensor 8 can control the heater of sterilizing slot 2.
It is well known that the vacuum pump 3 of hydrolock operates while being supplied to the referred to as water of sealing water.Specifically,
In the present embodiment, there is the impeller (illustration omitted) for being configured to radial blade to be arranged in a manner of with shell bias and supply
There is the cylindric shell (omitting appended drawing reference) of sealing water.Therefore, when making impeller high speed rotation, water is formed in shell
Ring, and it is eccentric to make impeller and shell, thus when often rotating a circle inside gas expansion and compression is repeated.Then,
By the way that air entry 3a and exhaust outlet 3b is arranged in the suitable position of shell in advance, external gas can be sucked discharge.In shell
Body is additionally provided with feed water inlet (illustration omitted), and sealing water is supplied in shell from its feed water inlet.The feed water valve of feed water inlet (omits
Diagram) stop linkedly being opened and closed with the movement of vacuum pump 3.It should be noted that the sealing water after use is also arranged from exhaust outlet 3b
Out.
The air entry 3a of vacuum pump 3 is connect via exhaust line 9 with sterilizing slot 2.To the exhaust of vacuum pump 3 in sterilizing slot 2
Road 9 is provided with catalyst reactor 6.At this point, being preferably able to switch the gas in sterilizing slot 2 via catalyst reactor
6 discharges are not discharged via catalyst reactor 6.Specifically, the exhaust line 9 from sterilizing slot 2 is branching into first row
After gas circuit 9a and second row gas circuit 9b, converges again and connect with vacuum pump 3.Moreover, being disposed in first row gas circuit 9a
Inlet valve 10, catalyst reactor 6 and outlet valve 11 are provided with by-passing valve 12 in second row gas circuit 9b.Therefore, if will be other
Port valve 12 opens inlet valve 10 and outlet valve 11 in the state of closing, then can will come from sterilizing slot by first row gas circuit 9a
Gas in 2 is discharged via catalyst reactor 6.On the contrary, if in the state of by inlet valve 10 and the closing of outlet valve 11
Open by-passing valve 12, then can by second row gas circuit 9b by from sterilizing slot 2 in gas not via 6 ground of catalyst reactor
Discharge.
Catalyst reactor 6 is configured to the catalyst for having decomposing formaldehyde.Specifically, being configured to for from sterilizing slot
Catalyst is provided in the reaction vessel that gas in 2 passes through.As catalyst, it is able to use the mesh for carrying platinum or palladium
Etc. known various components.Catalyst reactor 6 has heater (illustration omitted), passes through the heater, catalyst liter
Temperature is to set temperature (being in the present embodiment 200~250 DEG C).At this point, detailed content is aftermentioned, catalyst is not preferably made directly certainly
Body (or gas itself in sterilizing slot 2) heating, and heat up on the outside of reaction vessel.In addition, in order to effectively
It realizes the decomposition reaction for utilizing catalyst, according to demand, can also be mixed into the gas in sterilizing slot 2 from outside
Air, and it is passed through catalyst reactor 6.
The introducing mechanism 4 of vapor and formaldehyde gas has water pot 13, formalin tank 14 and gasifier 15.Water pot
13 tank to stockpile water in inside, formalin tank 14 are to stockpile the tank of formalin in inside.It should be noted that good fortune
Your Malin is the formalin of normal concentration (concentration of formaldehyde is 2~37% in the present embodiment).
Water pot 13 and formalin tank 14 are connect via for fluid path 16 (16a, 16b) with gasifier 15.From water pot 13
To gasifier 15 first for fluid path 16a and from formalin tank 14 to gasifier 15 second for fluid path 16b in illustrated example
In the case of, common pall is set as in the side of gasifier 15.Moreover, leaning on upstream side (each tank 13,14 sides) than common pall
Position, fluid path 16a is provided with the first supplying valve 17 first, fluid path 16b is provided with the second supplying valve 18 second.But
It is that according to circumstances, also can replace each supplying valve 17,18 and solution feed pump is set.
Gasifier 15 is connect via for fluid path 16 (16a, 16b) with water pot 13 and formalin tank 14, and via
Access 19 and with sterilizing slot 2 connect.Gasifier 15 has heater (illustration omitted), by the heater, in gasifier 15
It is warming up to predetermined temperature.In the state of making the heater of gasifier 15 work and depressurizing in the slot 2 that will sterilize, second is being kept
When supplying valve 18 closes and opens the first supplying valve 17, gasifier 15 will be imported from the water of water pot 13 and gasified, so as to
It forms vapor and is supplied via access 19 into sterilizing slot 2.Alternatively, keeping the first supplying valve 17 to close and opening second
When supplying valve 18, gasifier 15 will be imported from the formalin of formalin tank 14 and gasified, so as to be formed containing first
The vapor of aldehyde is simultaneously supplied via access 19 into sterilizing slot 2.
It should be noted that in the present specification, the vapor containing formaldehyde is meant including at least formaldehyde gas, sometimes only
For formaldehyde gas.In other words, formaldehyde gas refers to the gas including at least formaldehyde, it is to contain normal concentration in the present embodiment
Formaldehyde vapor.
Extraneous gas is imported via for gas circuit 20 in the sterilizing slot 2 of extraneous gas introducing mechanism 5 under reduced pressure.It goes out in direction
Gas circuit 20 is provided with air filter 21 and steam supply valve 22 in bacterium slot 2.It is opened in the state of making and being depressurized in sterilizing slot 2
When steam supply valve 22, by the inside and outside pressure difference for the slot 2 that sterilizes, extraneous gas is directed into sterilizing slot 2, so as to make to sterilize
It is pressed again in slot 2.At this point, clean air can be directed into sterilizing slot 2 by air filter 21.
Control mechanism is the detection signal of each sensor 7,8 based on the system, by time etc., to vacuum pump 3, described
The controller (illustration omitted) that each valve etc. is controlled.Specifically, in addition to vacuum pump 3, inlet valve 10, outlet valve 11, bypass
Valve 12, the first supplying valve 17, the second supplying valve 18, steam supply valve 22, pressure sensor 7 and temperature sensor 8 and controller connect
Outside connecing, sterilizing slot 2, catalyst reactor 6 and each heater of gasifier 15 etc. are connect with controller.Moreover, controller is pressed
According to defined sequence (program) as described below, the sterilizing of the sterilizing object in sterilizing slot 2 is realized.
Hereinafter, being illustrated to the concrete example of the method for operation of the low-temperature steam formaldehyde bactericidal unit 1 of the present embodiment.
Fig. 2 is the synoptic diagram for showing an example of the operating process of low-temperature steam formaldehyde bactericidal unit 1 of the present embodiment, is shown
Pressure P in sterilizing slot 2 and the relationship by time t.As shown in the drawing, the low-temperature steam formaldehyde bactericidal unit of the present embodiment
1 successively execute vacuumize process S1, steam displacement process S2, gas displacement process S3, sterilization process S4, steam be detached from process S5
And air is detached from process S6.Hereinafter, being illustrated to each process.
It should be noted that containing sterilizing object in sterilizing slot 2 before operation start, the door for the slot 2 that sterilizes is hermetic
It closes.In each process, sterilizing slot 2 is heated up using heater and maintains set temperature (typically 55~80 DEG C, preferably 50
~60 DEG C, be in the present embodiment 55 DEG C).In addition, catalyst reactor 6 is using heater the latest also in gas displacement process S3
Set temperature (being in the present embodiment 200~250 DEG C) is warming up to before starting.Refer to moreover, pressing start button etc. in user
When showing operation start, each process is successively executed.
" vacuumizing process S1 "
In vacuumizing process S1, decompression in sterilizing slot 2 is made by vacuum pump 3 until termination condition as defined in meeting.Tool
For body, by-passing valve 12 is opened in the state of by inlet valve 10 and the closing of outlet valve 11, continues working vacuum pump 3.This
When, each supplying valve 17,18 and steam supply valve 22 are closed.Thereby, it is possible to sterilize the gas in slot 2 to attract discharge to outside, from
And make the interior decompression of slot 2 that sterilizes.It vacuumizes process S1 and only implements the setting pumpdown time in the present embodiment.The time is preferably true
Recognize time enough required for the capacity limit (that is can make what degree be depressurized in sterilizing slot 2) of vacuum pump 3.
It after setting the pumpdown time, is closing by-passing valve 12 and is stopping vacuum pump 3, then shifted to next process.
But vacuumizing process S1 can also make to be decompressed to target evacuated pressure in sterilizing slot 2, in this case,
Terminate to vacuumize process S1 when reaching target evacuated pressure, but is vacuumized target can not be reached within the setting pumpdown time
In the case where pressure, preferably terminate when by setting the pumpdown time.During this period, it is arrived by the monitoring of pressure sensor 7
The minimum pressure P1 reached.No matter what kind of situation it is, to be set in the mode for vacuumizing the minimum pressure P1 or more that process S1 reaches
The decompression goal pressure PL of aftermentioned each process.It should be noted that the decompression goal pressure PL of each process is typically set to
Less than 10kPa (such as 4~9kPa or so), it is preferably set to 5kPa or less.Subtract moreover, goal pressure PU is pressed to be set greater than again
Press goal pressure PL and atmospheric pressure P0 or less.
" steam replaces process S2 "
Steam displacement process S2 in, will sterilize slot 2 in decompression and by vapor import realize multiple pressure repeatedly into
Row setting number.Specifically, being led by the decompression for being decompressed to decompression goal pressure PL carried out by vacuum pump 3 and by vapor
Enter realization answer be depressed into it is multiple pressure goal pressure PU multiple pressure setting number is repeated.It should be noted that depressurizing conduct for the first time
It can be omitted in the decompression vacuumized in process S1.Therefore, in steam displacement process S2, subtracting in process S1 is being vacuumized
After pressure, setting time is repeated in the multiple pressure for being depressed into multiple pressure goal pressure PU again and the decompression for being decompressed to decompression goal pressure PL
Number.
It should be noted that the multiple pressure number that setting number can be defined as pressing again from decompression state is (upper and lower in Fig. 2
In the pressure wave of ground amplitude, the umber of pulse protruded upwards).In addition, when pressure reduction/restoration is repeated, in the present embodiment,
Each decompression goal pressure PL is mutually the same, and each multiple pressure goal pressure PU is also mutually the same.Above situation is not limited to steam
Gas replaces process S2, is detached from process S5 for gas displacement process S3, steam and air disengaging process S6 is also the same.
Being repeated for pressure reduction/restoration in steam displacement process S2 is specifically described, firstly, subtracting in sterilizing slot 2
It when pressure, and vacuumizes in the same manner as process S1, opens by-passing valve 12 in the state of by inlet valve 10 and the closing of outlet valve 11, make
Vacuum pump 3 works.Moreover, pressure sensor 7 detection pressure reach decompression goal pressure PL when, close by-passing valve 12 and
Stop vacuum pump 3.Later, in open first supplying valve 17, the water in water pot 13 is attracted to gasifier 15, in gasifier 15
The vapor of middle evaporation is fed in sterilizing slot 2.When reaching multiple pressure goal pressure PU in the slot 2 that sterilizes, the first feed flow is closed
Valve 17.Moreover, such decompression and multiple pressure are executed setting number repeatedly.
But as shown in the example of the figure, vapor can also be being imported into sterilizing slot 2 and is being depressed into multiple pressure goal pressure again
After PU, setting retention time (such as 30 seconds) is kept with multiple pressure goal pressure PU.In addition, the multiple pressure in sterilizing slot 2 can not also
Be until the detection pressure of pressure sensor 7 reaches multiple pressure goal pressure PU, but from the opening of the first supplying valve 17 by
Until setting the open hour.No matter what kind of situation it is, in steam displacement process S2, by the way that subtracting in sterilizing slot 2 is repeated
Pressure and the multiple pressure that realization is imported by vapor, air are excluded out of sterilizing slot 2 and are replaced into vapor.
" gas displacement process S3 "
In gas displacement process S3, will sterilize slot 2 in decompression and by formaldehyde gas import realize multiple pressure repeatedly
Carry out setting number.Specifically, by the decompression for being decompressed to decompression goal pressure PL carried out by vacuum pump 3 and by formaldehyde gas
Body import realize answer be depressed into it is multiple pressure goal pressure PU multiple pressure setting number is repeated.It should be noted that first subtracts
It presses as the final decompression in steam displacement process S2 and can omit.Therefore, it in gas displacement process S3, is set in steam
After changing process S2, by be depressed into again it is multiple pressure goal pressure PU multiple pressure and be decompressed to decompression goal pressure PL decompression repeatedly into
Row setting number.
It should be noted that steam displacement process S2 and gas displacement process S3 is that will be decompressed to decompression goal pressure PL
Decompression and be depressed into the process that setting number is repeated in the multiple pressure of multiple pressure goal pressure PU again, but the setting number of two-step can
With different.Similarly, each decompression goal pressure PL of two-step each other can be different, and each of two-step presses target again
Pressure PU each other can also be different.Above situation is not limited to the relationship of steam displacement process S2 and gas displacement process S3,
It is also the same to each other for each process including steam is detached from process S5 and air is detached from process S6.In addition, for
Press the retention time (setting retention time) under goal pressure PU etc. also the same again.In illustrated example, steam replace process S2,
Gas displacement process S3, steam are detached from process S5 and air is detached from process S6, and the decompression goal pressure PL of each process is each other
It is set as same to each other, in addition to air is detached from process S6, the multiple pressure goal pressure PU of each process is also configured as same to each other each other.
Being repeated for pressure reduction/restoration in gas displacement process S3 is specifically described, firstly, subtracting in sterilizing slot 2
When pressure, inlet valve 10 and outlet valve 11 are opened in the state of closing by-passing valve 12, and vacuum pump 3 is made to work.It sterilizes as a result,
Gas in slot 2 is discharged via catalyst reactor 6, and formaldehyde included in exhaust is innoxious by catalyst decomposition.And
And when the detection pressure of pressure sensor 7 reaches decompression goal pressure PL, closes inlet valve 10 and outlet valve 11 and stop
Only vacuum pump 3.Later, in open second supplying valve 18, the formalin in formalin tank 14 is attracted to gasifier 15,
The formaldehyde gas (as previously described stringent for be the vapor containing formaldehyde) evaporated in gasifier 15 is fed to sterilizing slot 2
It is interior.When reaching multiple pressure goal pressure PU in the slot 2 that sterilizes, the second supplying valve 18 is closed.Moreover, such decompression and multiple pressure is anti-
It is multiple to execute setting number.
But as shown in the example of the figure, formaldehyde gas is being imported to be depressed into multiple pressure goal pressure PU again into sterilizing slot 2
Afterwards, setting retention time (such as 30 seconds) can also be kept with multiple pressure goal pressure PU.In addition, the multiple pressure in sterilizing slot 2 can also
Until the detection pressure of not instead of pressure sensor 7 reaches multiple pressure goal pressure PU, from the opening of the second supplying valve 18
Until the setting open hour.No matter what kind of situation it is, in gas displacement process S3, by being repeated in sterilizing slot 2
Decompression and by formaldehyde gas import realize multiple pressure, sterilize slot 2 in vapor be replaced into formaldehyde gas.In other words,
It will be full of in sterilizing slot 2 using the formaldehyde gas with corresponding concentration in formalin tank 14.
" sterilization process S4 "
In sterilization process S4, sterilization time will be kept under sterilising temp in sterilizing slot 2.Here, being set using gas
The final multiple pressure (the multiple pressure realized by importing formaldehyde gas into sterilizing slot 2) changed in process S3 will maintain in sterilizing slot 2
In the state of for sterilization pressure (being PU in illustrated example), sterilization time will be kept under sterilising temp in sterilizing slot 2.
Specifically, maintaining sterilising temp (such as 55 DEG C) in sterilization process S4 with the detection temperature of temperature sensor 8
Mode, control formaldehyde gas to sterilizing slot 2 in importing (more specifically the second supplying valve 18), by keep sterilize when
Between (such as 60 minutes) sterilize to the sterilizing object in sterilizing slot 2.Alternatively, being maintained with the detection pressure of pressure sensor 7
The mode of sterilization pressure (with the comparable saturation vapour pressure of sterilising temp), importing of the control formaldehyde gas into sterilizing slot 2, leads to
It crosses and keeps sterilization time to sterilize to the sterilizing object in sterilizing slot 2.Later, in the state of closing the second supplying valve 18 to
Next process transfer.
" steam is detached from process S5 "
Steam be detached from process S5 in, will sterilize slot 2 in decompression and by vapor import realize multiple pressure repeatedly into
Row setting number.Specifically, being steamed by the decompression for being decompressed to decompression goal pressure PL carried out using vacuum pump 3 and by water
Conductance enter realization answer be depressed into it is multiple pressure goal pressure PU multiple pressure setting number is repeated.
Being repeated for pressure reduction/restoration being detached from process S5 in steam is specifically described, firstly, subtracting in sterilizing slot 2
When pressure, inlet valve 10 and outlet valve 11 are opened in the state of closing by-passing valve 12, and vacuum pump 3 is made to work.Sterilize slot as a result,
Gas in 2 is discharged via catalyst reactor 6, and the formaldehyde for including in exhaust is innoxious by catalyst.Also, it is pressing
When the detection pressure of force snesor 7 reaches decompression goal pressure PL, closes inlet valve 10 and outlet valve 11 and stop vacuum
Pump 3.Later, in open first supplying valve 17, the water in water pot 13 is attracted to gasifier 15, evaporates in gasifier 15
Vapor is fed in sterilizing slot 2.When reaching multiple pressure goal pressure PU in the slot 2 that sterilizes, the first supplying valve 17 is closed.And
And such decompression and multiple pressure are executed into setting number repeatedly.
But example as shown is such, after importing vapor into sterilizing slot 2 to be depressed into multiple pressure goal pressure PU again,
It can also be kept for the setting retention time (replacing process S2, gas displacement than steam in illustrated example with multiple pressure goal pressure PU
Setting shorter time retention time in process S3).In addition, the multiple pressure in sterilizing slot 2 may not be pressure sensor 7
Detection pressure reach multiple pressure goal pressure PU until, but from the opening of the first supplying valve 17 through setting the open hour as
Only.No matter what kind of situation it is, it is detached from process S5 in steam, by the decompression being repeated in sterilizing slot 2 and passes through vapor
The multiple pressure realized is imported, the formaldehyde to sterilize in slot 2 is excluded, and is replaced into the vapor without formaldehyde.
" air is detached from process S6 "
It is detached from process S6 in air, is repeated by the decompression to sterilize in slot 2 and by the multiple pressure that air imports realization
Set number.Specifically, being led by the decompression for being decompressed to decompression goal pressure PL carried out using vacuum pump 3 and by air
Enter realization answer be depressed into it is multiple pressure goal pressure PU multiple pressure setting number is repeated.It should be noted that first decompression is made
It can be omitted for the final decompression in steam disengaging process S5.Therefore, it is detached from process S6 in air, is detached from work in steam
After sequence S5, the multiple pressure for being depressed into multiple pressure goal pressure PU again and the decompression for being decompressed to decompression goal pressure PL are repeated and are set
Determine number.
It should be noted that in the present embodiment, air is detached from the decompression goal pressure PL of process S6 and steam replaces work
Each decompression goal pressure PL that sequence S2, gas displacement process S3 and steam are detached from process S5 is identical.On the other hand, air is detached from
The multiple pressure goal pressure PU of process S6 is preferably provided with to be detached from work than steam displacement process S2, gas displacement process S3 and steam
The each of sequence S5 presses goal pressure PU high, preferably atmospheric pressure or close pressure again.
Being repeated for pressure reduction/restoration being detached from process S6 to air specifically describes, firstly, depressurizing in sterilizing slot 2
When, by-passing valve 12 is opened in the state of by inlet valve 10 and the closing of outlet valve 11, vacuum pump 3 is made to work.Moreover, in pressure
When the detection pressure of sensor 7 reaches decompression goal pressure PL, closes by-passing valve 12 and stop vacuum pump 3.Later, in opening
When steam supply valve 22, extraneous gas is fed in sterilizing slot 2.When becoming pressure goal pressure PU again in the slot 2 that sterilizes, gas supply is closed
Valve 22.Moreover, such decompression and multiple pressure are executed setting number repeatedly.
But when depressurizing in the slot 2 that sterilizes, the gas in sterilizing slot 2 can also be made to be passed through catalyst reactor 6.
That is, inlet valve 10 and outlet valve can also be opened in the state of closing by-passing valve 12 when depressurizing in the slot 2 that sterilizes
11, so that vacuum pump 3 is worked.The gas to sterilize in slot 2 as a result, is discharged via catalyst reactor 6, so even in sterilizing slot 2
Inside remain formaldehyde, the formaldehyde is innoxious also by catalyst.Moreover, the detection pressure in pressure sensor 7 reaches decompression
When goal pressure PL, closes inlet valve 10 and outlet valve 11 and stop vacuum pump 3, open steam supply valve 22.
No matter what kind of situation it is, it is detached from process S6 in air, by the decompression being repeated in sterilizing slot 2 and passes through sky
Conductance enters the multiple pressure of realization, and steam is excluded out of sterilizing slot 2 and is replaced into air.Moreover, it is final, stopping vacuum pump 3
Steam supply valve 22 is opened under state, and makes to be depressed into atmospheric pressure again in sterilizing slot 2.Later, the door of sterilizing slot 2 is opened, so as to
It is enough to take out sterilizing object out of sterilizing slot 2.
According to the low-temperature steam formaldehyde bactericidal unit 1 of the present embodiment, keep the exhaust for leading to vacuum pump 3 out of sterilizing slot 2 logical
Enter catalyst reactor 6, the Formaldehyde decomposition that can will contain in exhaust.Thereby, it is possible to prevent formaldehyde from flowing into vacuum pump 3, from
And prevent formaldehyde from dissolving in sealing water, draining.Moreover, without the need for a large amount of water of dilution formaldehyde, so as to realize operating
The reduction of cost.
In addition, allow hand over whether by from sterilizing slot 2 in exhaust be passed through catalyst reactor 6.It therefore, being capable of basis
It is anti-whether gas (in other words according to operating process) switching in sterilizing slot 2 by the exhaust in sterilizing slot 2 is passed through catalyst
Answer device 6.In the case where being vented via catalyst reactor 6, can in catalyst reactor 6 by Formaldehyde decomposition, without
In the case where being vented by catalyst reactor 6, can with the correspondingly reduction pressure loss that is not passed through catalyst reactor 6, from
And realize the shortening of evacuation time.The gas displacement process S3 containing formaldehyde preferably at least in the exhaust in sterilizing slot 2
And steam is detached from process S5, and the gas in sterilizing slot 2 is passed through catalyst reactor 6 and is vented.In addition, in air
It is detached from process S6, when being vented out of sterilizing slot 2, is vented via catalyst reactor 6, thus even if just in case in sterilizing slot 2
Inside remain formaldehyde, also can be innoxious by its and be vented.
Fig. 3 is the synoptic diagram for showing the variation of low-temperature steam formaldehyde bactericidal unit of described the present embodiment.This variation
(Fig. 3) is substantially also identical as the embodiment (Fig. 1).Then, it is illustrated centered on the difference of the two below, right
The position answered marks identical appended drawing reference and is illustrated.
The structure of the exhaust system for leading to vacuum pump 3 out of sterilizing slot 2 of this variation is different from the embodiment.With
Under, it is specifically described.Firstly, the exhaust line 9 from sterilizing slot 2 is branching into first row in the same manner as the embodiment
After gas circuit 9a and second row gas circuit 9b, converges again and connect with vacuum pump 3.Wherein, it is disposed in first row gas circuit 9a
Inlet valve 10, catalyst reactor 6, communicating valve 23, tank 24 and outlet valve 11.On the other hand, in second row gas circuit 9b and institute
It states embodiment and is similarly provided with by-passing valve 12.As described later, it by controlling the opening and closing of each valve 10,11,12,23, can cut
It changes and is vented or is not vented via second exhaust road 9b via first row gas circuit 9a.
In addition to catalyst reactor 6, the structure of inlet valve 10, outlet valve 11 and by-passing valve 12 and the embodiment phase
Together.Tank 24 be than the small hollow container of sterilizing slot 2, using heater (such as heating tape) be warming up to set temperature (such as with
The warming temperature to sterilize in slot 2 is mutually all 55 DEG C).The tank 24 is connect via communicating valve 23 with catalyst reactor 6, and via
Outlet valve 11 is connect with vacuum pump 3.
When being vented via first row gas circuit 9a, by-passing valve 12 is remained turned-off, firstly, by inlet valve 10 and communicating valve 23
Outlet valve 11 is opened in the state of closing, makes to be decompressed to authorized pressure (the first operation) in tank 24 by vacuum pump 3.The regulation pressure
Power refers to the pressure lower than the pressure in sterilizing slot 2.Later, it in the state of closing outlet valve 11, opens inlet valve 10 and connects
Port valve 23, to make sterilize the interior decompression of slot 2 (the second operation).That is, via catalyst reactor 6 make sterilize slot 2 in
Connection in tank 24, so that the gas to sterilize in slot 2 is attracted in tank 24 via catalyst reactor 6.At this point, from sterilizing slot
Formaldehyde included in exhaust in 2 is innoxious by catalyst decomposition.And then it secondary is closed by inlet valve 10 and communicating valve 23
Outlet valve 11 is opened in the state of closing, to make to depressurize (third operation) in tank 24.Thereby, it is possible to steam water remaining in tank 24
Gas excludes, to make to be decompressed to authorized pressure in tank 24 again.
It is preferred that being operated when out of sterilizing slot 2 by the gas exhaust containing formaldehyde by above-mentioned the first operation to third
Implementation, via first row gas circuit 9a be vented.For example, being detached from process S5 in gas displacement process S3, steam, such as implementation
Example is described to be repeated setting number for decompression and multiple pressure like that, but preferably its each time decompression is operated according to from above-mentioned first
A whole set of implementation operated to third.That is, it is preferred that will be set as being less than decompression target in advance in tank 24 by the first operation
The authorized pressure of pressure PL makes to be decompressed to decompression goal pressure PL in sterilizing slot 2 by the second operation.In consideration of it, setting
Set capacity, (carrying out by the first operation) decompression rank of tank 24.
Such as in gas displacement process S3, decompression in tank 24 (the first operation) is in addition to can be in (namely work in advance
Before sequence starts) carry out, additionally it is possible to by after decompression sterilizing slot 2 in import formaldehyde gas realize multiple pressure concurrently into
Row, in addition steam be detached from process S5 in, in addition to can in advance (before namely process starts) carry out other than, additionally it is possible to pass through
The multiple pressure that vapor is realized is imported into the sterilizing slot 2 after decompression concurrently to carry out.
On the other hand, when being vented via second row gas circuit 9b, in the same manner as the embodiment, 10 He of inlet valve is being closed
In the state of outlet valve 11, by-passing valve 12 is opened, and be vented by vacuum pump 3.Other structures, method of operation with it is described
Embodiment is identical, and and the description is omitted.
Next, being catalyzed to used in the low-temperature steam formaldehyde bactericidal unit 1 in the embodiment (including variation)
The concrete example of agent reactor 6 is illustrated.As previously mentioned, catalyst reactor 6 has reaction vessel, catalyst and heating
Device.
Reaction vessel is the container being passed through for the gas in sterilizing slot 2, typically by the cylinders material shape such as cylinder, square tube
At.It is provided in reaction vessel by the catalyst of Formaldehyde decomposition.Typically, the reaction vessel of tubular is arranged in axial middle part
There is catalyst, the opening portion of opening portion towards another party of Cong Yifang are passed through the gas out of sterilizing slot 2 towards vacuum pump 3.
Having heaters is set in reaction vessel, and catalyzer temperature-elevating is made by the heater.For example, sheathing formula heater is set
It is set to all side walls entirety from outer side covering reaction vessel.Before the gas in sterilizing slot 2 is passed through catalyst, using adding
Hot device makes catalyzer temperature-elevating to set temperature (150 DEG C or more, preferably 200~250 DEG C), later to maintain the set temperature
Mode control heater.It should be noted that during the gas containing formaldehyde passes through catalyst, the temperature of catalyst
It is suppressed to higher than the set temperature but lower than the temperature naturally on fire of formaldehyde.
Additionally, it is preferred that heater not only makes catalyzer temperature-elevating, also make to lead to out of sterilizing slot 2 catalyst gas (such as
50~55 DEG C of gas) heating.That is, the gas being preferred from sterilizing slot 2 will be catalyzed in reaction vessel
It heats up in a manner of as 150 DEG C or more of the set temperature before.In order to be realized in above-mentioned with simple and small-sized device
Hold, catalyst reactor 6 is preferably constituted by following.
Fig. 4 is the schematic cross sectional view for showing an example of catalyst reactor 6.In this example embodiment, catalyst reactor 6 is arranged
For the double-sleeve structure being made of inner cylinder 25 and outer cylinder 26, catalyst 27 is provided in inner cylinder 25 and outer cylinder 26 passes through heater
(illustration omitted) heating.Moreover, the gas in sterilizing slot 2 turns back behind the gap being passed through between inner cylinder 25 and outer cylinder 26
And it is passed through in inner cylinder 25.
It is more particularly described, inner cylinder 25 is contained in outer cylinder 26 in a manner of keeping axis consistent.Moreover, inner cylinder 25 and outer cylinder
26 have the entrance of fluid in axial one end (being right part in Fig. 4), (are left end in Fig. 4 in axial the other end
Portion) it is occluded by end wall 28.That is, the cylindric gap between inner cylinder 25 and outer cylinder 26 is in axial the other end by end wall 28
Occlusion, and the hollow hole of inner cylinder 25 is also occluded by identical end wall 28.Moreover, in the position close to the end wall 28, in inner cylinder
25 all side walls are formed with multiple interconnecting parts (through hole or notch) 29 in mode separate in the circumferential, and inner cylinder 25 is inside and outside
It is connected to by the interconnecting part 29.That is, the cylindric gap between inner cylinder 25 and outer cylinder 26 is passed through with the hollow hole of inner cylinder 25
It is connected to by the interconnecting part 29 of all side walls setting in inner cylinder 25.
On the other hand, the cylindric gap between axial one end, inner cylinder 25 and outer cylinder 26 and matching from sterilizing slot 2
Pipe connection, the hollow hole of inner cylinder 25 are connect with the piping for leading to vacuum pump 3.In illustrated example, axial one end is provided with end
Wall 30, and the hollow hole in the cylindric gap, inner cylinder 25 between inner cylinder 25 and outer cylinder 26 is occluded by the end wall 30.But at this
End wall 30 is respectively formed with through hole 30a, 30b in position corresponding with the cylindric gap, the hollow hole.Moreover,
The pipe portion of the through hole 30a, 30b setting is connect with the piping from the slot 2 that sterilizes, the piping of leading to vacuum pump 3.In addition, inside
The axial central portion of cylinder 25 is provided with catalyst 27.
Also, having heaters (illustration omitted) is set in the outer cylinder of catalyst reactor 6 26.For example, in addition to outer cylinder 26
Outside all side walls, sheathing formula preferably is provided in a manner of covering the end wall 28,30 (end wall 28 of at least axial the other end)
Heater.By making the heater work, it can make in outer cylinder 26 or even inner cylinder 25 is interior and catalyst 27 is warming up to setting temperature
Degree.
When the gas in slot 2 will be sterilized using the discharge of vacuum pump 3 via catalyst reactor 6, heater is advanced with
Catalyst 27 is set to be warming up to set temperature.Double-sleeve structure is set by reaction vessel (25,26), therefore and the case where single tube
(only inner cylinder 25) is compared and is difficult to make catalyzer temperature-elevating, but as described in the embodiment, after operation start, is vacuumizing work
In sequence S1, steam displacement process S2, it is vented via second row gas circuit 9b (that is not via catalyst reactor 6), herein
Period, it can be ensured that the time for making catalyst 27 heat up using heater.
In addition, the decomposition reaction of formaldehyde is by reaction equation " HCHO+O2→CO2+H2O " is indicated, needs oxygen.But such as the reality
It is described like that apply example, in vacuumizing process S1, steam displacement process S2, is excluded in the air carried out in sterilizing slot 2
Afterwards, formaldehyde gas (gas displacement process S3) is imported into sterilizing slot 2, so as to realize sterilizing under vacuum.Therefore, exist
When being vented out of sterilizing slot 2, even if formaldehyde is passed through catalyst reactor 6, it is also possible to not carried out because of hypoxgia desired
It decomposes.Catalyst reactor 6 is passed through after external air it is then preferred that being mixed into the gas in sterilizing slot 2.
In illustrated example, sky is opened up in the end wall 30 (position being connected to the cylindric gap) of the axial one end
Intake of the stomata 30c as extraneous gas.Therefore, it when being vacuumized, is automatically imported into come from external air
Gas from sterilizing slot 2, behind the gap between inner cylinder 25 and outer cylinder 26, the catalyst 27 that is passed through in inner cylinder 25.Herein
Period carries out gas and the mixing from external air and the heating carried out by heater in sterilizing slot 2.Separately
Outside, it is diluted, is able to suppress excessive at catalyst 27 and being mixed into air in the formaldehyde gas in sterilizing slot 2
Temperature rise.
Also, valve can also be set in the pipeline for leading to airport 30c, and the opening and closing of the valve or aperture are configured to
Adjustment.In addition, airport 30c is not limited to the end wall 30 of axial one end, it can also be formed in outer cylinder 26, according to circumstances may be used also
To be formed in the piping for leading to catalyst reactor 6 from sterilizing slot 2.No matter what kind of situation it is, it is gone out by the way that air to be mixed into come from
In gas in bacterium slot 2 and it is passed through catalyst reactor 6, the decomposition of formaldehyde can be reliably achieved.
It should be noted that the posture of catalyst reactor 6 is not limited to transverse direction, or longitudinal, oblique.Namely
It says, in Fig. 4, the inner cylinder 25 of catalyst reactor 6 and the axis of outer cylinder 26 configure in left-right direction, but can also be vertically
Direction configures or diagonally configures.Vertically, oblique configuration in the case where, can also make in the pair of end wall 28,30
Either one is upward.The fluid substantially instrument for being passed through catalyst reactor 6 is gas, therefore can suitably change catalyst
Posture, the setting direction of reactor 6.In addition, inner cylinder 25 and outer cylinder 26 are made of cylinder, but according to circumstances in illustrated example,
It can also be made of square tubes such as section quadrangles.
Fig. 5 is another schematic cross sectional view for showing catalyst reactor 6.The catalyst reactor 6 of Fig. 5 also substantially with
The catalyst reactor 6 of Fig. 4 is identical.Then, it is illustrated centered on the difference of the two, is marked at corresponding position below
Identical appended drawing reference is illustrated.
In the catalyst reactor 6 of Fig. 4, axial the other end by inner cylinder 25 and outer cylinder 26 (is left end in Fig. 4
Portion) opening portion using end wall 28 occlude, and all side walls of axial the other end of inner cylinder 25 be arranged interconnecting part 29, thus
Make the inside and outside connection of inner cylinder 25, but in the catalyst reactor of Fig. 56, by the opening portion benefit of axial the other end of outer cylinder 26
It is occluded with end wall 28, and there are gaps in a manner of being isolated with end wall 28 for axial the other end of inner cylinder 25.Moreover, the gap
(gap between axial the other end of inner cylinder 25 and end wall 28) is as the inside and outside performance of interconnecting part 29 being connected to for making inner cylinder 25
Function.In this case, from axial one end in the axial direction the other end flow through inner cylinder 25 and outer cylinder 26 cylindric gap gas
Body backs into inner cylinder 25 in axial the other end folding, towards axial one end flowing, and via the catalyst in inner cylinder 25
27 export.Other structures are identical as Fig. 4, and and the description is omitted.
The low-temperature steam formaldehyde bactericidal unit 1 of the utility model is not limited to the specific embodiments the structure (including variation)
(including control), is able to carry out and suitably changes.Especially, if having (a) contain sterilizing object sterilizing slot 2, (b) should
Gas in sterilizing slot 2, which is set to vacuum pump 3, (c) of the external hydrolock for attracting discharge from sterilizing slot 2, leads to vacuum pump 3
Exhaust line 9 and decomposing formaldehyde catalyst reactor 6, then other structures, which are able to carry out, suitably changes.
For example, in the described embodiment, by the row first row gas circuit 9a exhaust carried out and carried out by second row gas circuit 9b
Gas be by inlet valve 10, outlet valve 11 and by-passing valve 12 switching carry out, but sterilize slot 2 in exhaust when whether pass through
By the specific structure of catalyst reactor 6, there is no particular restriction.As an example, inlet valve 10 and by-passing valve 12 be can replace and
Triple valve is arranged in the branch portion of first row gas circuit 9a and second row gas circuit 9b, alternatively, also can replace outlet valve 11 and by-passing valve
12 and in the fluidic junction of first row gas circuit 9a and second row gas circuit 9b, triple valve is set.
In addition, in the described embodiment, can according to circumstances omit the by-passing valve 12 of second row gas circuit 9b.Alternatively, can also
To omit the setting of second row gas circuit 9b itself.The exhaust in sterilizing slot 2 is passed through always that is, may be set to be
By catalyst reactor 6 and the structure that is discharged using vacuum pump 3.In this case, in addition to second row gas circuit 9b, outlet valve 11
Setting can also omit.
In addition, in the described embodiment, successively executing and vacuumizing process S1, steam displacement process S2, gas displacement process
S3, sterilization process S4, steam are detached from process S5 and air is detached from process S6, as long as the sterilizing carried out including the use of formaldehyde gas
Process S4, then the presence or absence of each process, content etc. can be changed suitably.For example, vacuumizing process S1 can be used in checking sterilizing
Leakage (flowing into towards the extraneous gas in sterilizing slot 2) when decompression in slot 2 and determine that the decompression in subsequent each process is answered
The number of pressure, but without leak test and fixed setting number, the implementation for vacuumizing process S1 can be omitted.
In addition, the purpose of steam displacement process S2 is the air excluded in sterilizing slot 2, but formaldehyde gas is able to use instead of vapor
Body.Accordingly it is also possible to not implement steam displacement process S2 and increase the number of the pressure reduction/restoration of gas displacement process S3.
Claims (11)
1. a kind of low-temperature steam formaldehyde bactericidal unit, which is characterized in that have:
It sterilizes slot (2), receiving sterilizing object；
Gas in the sterilizing slot (2) is attracted discharge to outside by the vacuum pump (3) of hydrolock；And
Catalyst reactor (6) is set to the exhaust line for leading to the vacuum pump (3) from sterilizing slot (2), and decomposes first
Aldehyde.
2. low-temperature steam formaldehyde bactericidal unit according to claim 1, which is characterized in that
From it is described sterilizing slot (2) in exhaust line (9) after branching into first row gas circuit (9a) and second row gas circuit (9b), then
It is secondary to converge and connect with the vacuum pump (3),
The first row gas circuit (9a) is provided with catalyst reactor (6),
The low-temperature steam formaldehyde bactericidal unit is configured to switching and is vented via the first row gas circuit (9a) or via institute
State second row gas circuit (9b) exhaust.
3. low-temperature steam formaldehyde bactericidal unit according to claim 2, which is characterized in that
It is described sterilizing slot (2) in be provided with to it is described sterilizing slot (2) in pressure detected pressure sensor (7), with
And to the temperature sensor (8) that the temperature in sterilizing slot (2) is detected.
4. low-temperature steam formaldehyde bactericidal unit according to claim 3, which is characterized in that
The low-temperature steam formaldehyde bactericidal unit is also equipped with the extraneous gas introducing mechanism (5) led in sterilizing slot (2).
5. low-temperature steam formaldehyde bactericidal unit according to claim 4, which is characterized in that
The extraneous gas introducing mechanism (5) has for gas circuit (20) and is set to the air filter for gas circuit (20)
(21) and steam supply valve (22).
6. low-temperature steam formaldehyde bactericidal unit according to claim 5, which is characterized in that
The low-temperature steam formaldehyde bactericidal unit has the introducing mechanism (4) of vapor and formaldehyde gas.
7. low-temperature steam formaldehyde bactericidal unit according to claim 6, which is characterized in that
The introducing mechanism (4) of the vapor and formaldehyde gas has water pot (13), formalin tank (14) and gasifier
(15)。
8. low-temperature steam formaldehyde bactericidal unit according to claim 7, which is characterized in that
The gasifier (15) has heater.
9. low-temperature steam formaldehyde bactericidal unit according to claim 8, which is characterized in that
The water pot (13) and the formalin tank (14) are connect via for fluid path (16) with the gasifier (15),
The gasifier (15) connect via access (19) with the sterilizing slot (2).
10. low-temperature steam formaldehyde bactericidal unit according to any one of claim 1 to 9, which is characterized in that
The catalyst reactor (6) has heater.
11. low-temperature steam formaldehyde bactericidal unit according to claim 10, which is characterized in that
The catalyst reactor (6) is the double-sleeve structure being made of inner cylinder (25) and outer cylinder (26), in the interior of inner cylinder (25)
Portion is provided with catalyst (27),
Gap between inner cylinder (25) and outer cylinder (26) is connect with the piping from sterilizing slot (2), inner cylinder (25) it is hollow
Hole is connect with the piping for leading to the vacuum pump (3).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017-004599 | 2017-01-13 | ||
| JP2017004599A JP2018110793A (en) | 2017-01-13 | 2017-01-13 | Low-temperature-steam formaldehyde sterilization device |
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| Publication Number | Publication Date |
|---|---|
| CN208611398U true CN208611398U (en) | 2019-03-19 |
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ID=62869741
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|---|---|---|---|
| CN201721675534.XU Expired - Fee Related CN208611398U (en) | 2017-01-13 | 2017-12-05 | Low-temperature steam formaldehyde bactericidal unit |
| CN201711272819.3A Pending CN108295288A (en) | 2017-01-13 | 2017-12-05 | Low-temperature steam formaldehyde bactericidal unit |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711272819.3A Pending CN108295288A (en) | 2017-01-13 | 2017-12-05 | Low-temperature steam formaldehyde bactericidal unit |
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| JP (1) | JP2018110793A (en) |
| CN (2) | CN208611398U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295288A (en) * | 2017-01-13 | 2018-07-20 | 三浦工业株式会社 | Low-temperature steam formaldehyde bactericidal unit |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6861945B2 (en) * | 2017-01-23 | 2021-04-21 | 三浦工業株式会社 | Low temperature steam formaldehyde sterilizer |
| JP6861946B2 (en) * | 2017-01-23 | 2021-04-21 | 三浦工業株式会社 | Low temperature steam formaldehyde sterilizer |
| KR102059995B1 (en) * | 2017-09-20 | 2019-12-27 | 주식회사 큐브인스트루먼트 | Sterilization method using low-temperature sterilizer |
| CN113577349A (en) * | 2021-09-08 | 2021-11-02 | 山东新华医疗器械股份有限公司 | Low-temperature steam formaldehyde sterilizer and sterilization method thereof |
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| JP2690518B2 (en) * | 1988-08-31 | 1997-12-10 | 株式会社千代田製作所 | Method for removing residual gas in gas sterilizer |
| JPH0731664A (en) * | 1993-07-23 | 1995-02-03 | Miura Kenkyusho:Kk | Apparatus for treating sterilization gas in gas sterilization tool |
| JP2851534B2 (en) * | 1994-08-25 | 1999-01-27 | 一丸産業株式会社 | Disinfection drying method |
| JP3558894B2 (en) * | 1998-09-25 | 2004-08-25 | 株式会社メディエート | Formalin gas detoxifying deodorizing method and apparatus |
| CA2386146A1 (en) * | 1999-10-08 | 2001-04-19 | Bio Media Co., Ltd. | Formaldehyde gas sterilizer |
| JP4399097B2 (en) * | 2000-09-20 | 2010-01-13 | サクラ精機株式会社 | Ethylene oxide gas sterilizer |
| CN2511304Y (en) * | 2001-11-22 | 2002-09-18 | 张家港市华菱医疗设备制造有限公司 | Formaldehyde low-temperature steam sterilizing cupboard |
| US20030113923A1 (en) * | 2001-12-12 | 2003-06-19 | Puntambekar Shobha Shakher | Steam-formaldehyde sterilization process indicator inks |
| JP2004180902A (en) * | 2002-12-03 | 2004-07-02 | Asuka Medical:Kk | Apparatus and method for sterilization and purification |
| EP1736175A4 (en) * | 2004-03-31 | 2009-07-29 | Yuyama Mfg Co Ltd | Method of sterilization and apparatus therefor |
| JP2006122166A (en) * | 2004-10-27 | 2006-05-18 | Matsushita Electric Ind Co Ltd | Formaldehyde sterilizer |
| JP2010063601A (en) * | 2008-09-10 | 2010-03-25 | Miura Co Ltd | Gas sterilizing apparatus |
| JP2013213425A (en) * | 2012-04-02 | 2013-10-17 | Sakura Seiki Kk | Control method for water-sealed vacuum pump |
| CN103893792B (en) * | 2014-04-16 | 2016-05-25 | 张家港市华菱医疗设备制造有限公司 | A kind of Medical low-temperature steam formaldehyde sterilizing cabinet and sterilizing methods thereof |
| CN203815923U (en) * | 2014-04-16 | 2014-09-10 | 张家港市华菱医疗设备制造有限公司 | Gas supply system of medical low-temperature steam formaldehyde sterilizing cabinet |
| JP2015229034A (en) * | 2014-06-06 | 2015-12-21 | 三浦工業株式会社 | Gas sterilizer |
| KR102226354B1 (en) * | 2014-10-22 | 2021-03-11 | 헬더 다 코스타 곤칼베스 | Sterilization device using hydrogen peroxide and ozone vaporized and combined through multiple capillary tubes |
| CN105999332B (en) * | 2016-07-07 | 2019-01-25 | 连云港佑源医药设备制造有限公司 | A kind of low temperature plasma formaldehyde sterilizer and formaldehyde minimizing technology |
| JP2018111069A (en) * | 2017-01-12 | 2018-07-19 | 三浦工業株式会社 | Apparatus for detoxifying sterilizing gas |
| JP2018110793A (en) * | 2017-01-13 | 2018-07-19 | 三浦工業株式会社 | Low-temperature-steam formaldehyde sterilization device |
-
2017
- 2017-01-13 JP JP2017004599A patent/JP2018110793A/en active Pending
- 2017-12-05 CN CN201721675534.XU patent/CN208611398U/en not_active Expired - Fee Related
- 2017-12-05 CN CN201711272819.3A patent/CN108295288A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295288A (en) * | 2017-01-13 | 2018-07-20 | 三浦工业株式会社 | Low-temperature steam formaldehyde bactericidal unit |
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| Publication number | Publication date |
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| JP2018110793A (en) | 2018-07-19 |
| CN108295288A (en) | 2018-07-20 |
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Granted publication date: 20190319 Termination date: 20211205 |