CN109078404A - A kind of biological safe type double-stage high-efficient air filter - Google Patents
A kind of biological safe type double-stage high-efficient air filter Download PDFInfo
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- CN109078404A CN109078404A CN201811195192.0A CN201811195192A CN109078404A CN 109078404 A CN109078404 A CN 109078404A CN 201811195192 A CN201811195192 A CN 201811195192A CN 109078404 A CN109078404 A CN 109078404A
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- air filter
- high efficiency
- efficiency particulate
- particulate air
- filter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0005—Mounting of filtering elements within casings, housings or frames
- B01D46/0008—Two or more filter elements not fluidly connected positioned in the same housing
-
- 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
-
- 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
-
- 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
- A61L2/28—Devices for testing the effectiveness or completeness of sterilisation, e.g. indicators which change colour
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
- B01D46/0086—Filter condition indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
- B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
-
- 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
- A61L2202/12—Apparatus for isolating biocidal substances from the environment
- A61L2202/123—Connecting means
Abstract
The invention discloses a kind of biological safe type double-stage high-efficient air filters, including bracket, the shell that is set to cradle top, the air inlet airtight valve for being set to shell head end, first order high efficiency particulate air filter, the second level high efficiency particulate air filter for being set to the exhaust outlet airtight valve of shell tail end and being set in turn in enclosure interior along gas flow direction；Every grade of high efficiency particulate air filter is equipped with upstream aerosol inlet, evenly mixing device, upstream aerosol thief hatch, downstream scanning leak detection device and downstream sampling of aerosol mouth in the present invention, guarantees that live in-situ scanning leak detection function can be implemented separately in every grade of high efficiency particulate air filter；Air filter provided by the invention also has the measure that gas (vapour) body disinfection in situ is carried out to the connecting line and instrument filter of high efficiency particulate air filter, filter resistance monitoring device, and the Disinfection Effect of every grade of high efficiency particulate air filter can be verified, bio-safety requirement can be met, effectively ensured the discharging safe of high-grade biological protection facility.
Description
Technical field
The present invention relates to biological safety protection technologies and equipment technology field, more particularly to a kind of biological safe type twin-stage
Air filtering apparatus.
Background technique
The many experimental implementations of biosecurity laboratory can all generate aerosol, and particle can be deposited in air for a long time indoors
It stays, if harmful aerosol discharge is into atmosphere, it will infection human or animal pollutes ambient enviroment, it is strong to seriously threaten human life
Health, or even cause great public health event.
China's relevant criterion requires the safe three-level of big animal organism for carrying out highly pathogenic pathogenic microorganism research real
It tests room, bio-safety level Four laboratory and carries out its polluted air exhausting of workshop of extensive live-virus vaccine production according to wind
Dangerous assessment result is discharged safely after needing or having to pass through the filtering of two-stage high efficiency particulate air filter；Simultaneously, it is desirable that all high efficiency filters
Device, which must be arranged so that, can carry out gas disinfection and detection mode.
For this purpose, providing a kind of double-stage high-efficient air mistake with leak detection in situ, gas disinfection and Disinfection Effect authentication function
Filter device, can the high-grade biological protection facility of effective guarantee discharging safe, be that those skilled in the art need to solve
The technical issues of.
Summary of the invention
The object of the present invention is to provide a kind of biological safe type double-stage high-efficient air filters, to solve above-mentioned existing skill
Art there are the problem of, make bipolar high efficiency particle air filter can be realized original place stop leakage in the roof, disinfection in situ and Disinfection Effect verifying, have
The discharging safe for having ensured high-grade biological protection facility of effect.
To achieve the above object, the present invention provides following schemes:
The present invention provides a kind of biological safe type double-stage high-efficient air filter, including bracket, is set to the bracket
The shell at top, the air inlet airtight valve for being set to the shell head end, the exhaust outlet airtight valve for being set to the shell tail end
With first order high efficiency particulate air filter, the second level high efficiency particulate air filter for being set in turn in the enclosure interior along gas flow direction；
The first sterilizing gas inlet, are provided on the shell of first order high efficiency particulate air filter upstream end
One aerosol inlet and the first sampled upstream mouth, wherein the enclosure interior correspondence at the first aerosol inlet is set
It is equipped with the first mixing plate；The first scanning leak detection dress is provided on the shell of first order high efficiency particulate air filter downstream
It sets and verifies device with the first disinfection, wherein the first sampled downstream mouth of the first scanning leak detection device and the first electric interfaces are set
It is placed on the shell；
The second sterilizing gas inlet, are provided on the shell of second level high efficiency particulate air filter upstream end
Two aerosol inlets and the second sampled upstream mouth, wherein the enclosure interior correspondence at the second aerosol inlet is set
It is equipped with the second mixing plate；The second scanning leak detection dress is provided on the shell of second level high efficiency particulate air filter downstream
It sets, the second disinfection verifying device and sterilizing gas outlet, wherein the second sampled downstream mouth of the second scanning leak detection device
It is set on the shell with the second electric interfaces；
The shell head end opposite with the first order high efficiency particulate air filter, the second level high efficiency particulate air filter is respectively set
There is a filter replacement door；The shell top opposite with the first order high efficiency particulate air filter, the second level high efficiency particulate air filter
Portion is also respectively provided with a filter resistance monitoring device, and the filter detection device is for detecting the efficient mistake of the first order
The pressure of filter and second level high efficiency particulate air filter both ends.
Preferably, the first sampled upstream mouth and the second sampled upstream mouth are the fast grafting with sealing function
Mouthful, and the first sampled upstream mouth and the second sampled upstream mouth are set to the intracorporal aerosol of the shell with one respectively and adopt
The thief hatch of the connection of sample pipe, the sampling of aerosol pipe corresponds to the efficient mistake of the first order high efficiency particulate air filter and the second level
Filter center.
Preferably, the first scanning leak detection device and the second scanning leak detection device include driving motor, scanning
Sampling probe, lead screw, limit sensors and sampling pipe；
The driving motor is set to the hull outside, is additionally provided on the shell opposite with the driving motor
The power output end of one fixing seat, one end of the lead screw and the driving motor is sequentially connected, the other end of the lead screw with
The fixing seat rotation connection, the scanning sample probe are set to the enclosure interior and connect with the threads of lead screw, institute
It states there are two limit inductor settings, two limit sensors are respectively arranged at the top and bottom end of the enclosure interior；
Described sampling pipe one end of the first scanning leak detection device and scanning sample probe connect, the other end and institute
The connection of the first sampled downstream mouth is stated, described sampling pipe one end of the second scanning leak detection device and scanning sample probe connect
It connects, the other end is connect with the second sampled downstream mouth, the driving motor of the first scanning leak detection device and two institutes
It states limit sensors to be electrically connected with first electric interfaces, the driving motor of the second scanning leak detection device and two
The limit sensors are electrically connected with second electric interfaces.
Preferably, the first sampled downstream mouth and the second sampled downstream mouth are the fast grafting with sealing function
Mouthful.
Preferably, the first sterilizing gas inlet, the second sterilizing gas inlet and sterilizing gas row
Outlet is an airtight interface for having shut-off valve, and the interface end of the airtight interface is additionally provided with sealing cover.
Preferably, the first disinfection verifying device and the second disinfection verifying device include shut-off valve and the cut-off
The sealing cover accommodating cavity of valve connection, biological indicator fixed device and be tightly connected with the accommodating cavity shell, it is described
Be equipped with a biological indicator push rod in the middle part of sealing cover, described push rod one end is provided with limited block, the other end with it is described
The fixed device of biological indicator is fixedly connected, and the fixed device of the biological indicator is for placing biological indicator, the push
The fixed device of the biological indicator can be passed through the shut-off valve and push to the enclosure interior, the end of the sealing cover by bar
Portion and the limited block opposite end, which are provided with, is slidingly sealed component, and the component that is slidingly sealed can be such that the push rod is sliding
It keeps sealing with the sealing cover in the process.
Preferably, the filter resistance monitoring device includes first pressure thief hatch, second pressure thief hatch, at least two
A shut-off valve, first instrument filter, second instrument filter, pressure gauge；First pressure thief hatch is respectively arranged at described
On the shell of level-one high efficiency particulate air filter upstream end and second level high efficiency particulate air filter upstream end, second pressure thief hatch point
It is not set on the shell of first order high efficiency particulate air filter downstream and second level high efficiency particulate air filter downstream；Pressure
Power table both ends are connect with the first pressure thief hatch, the second pressure thief hatch respectively by pipeline, and first instrument
Table filter and the second instrument filter are respectively arranged on the pipeline at the pressure gauge both ends；The first instrument filtering
Device one end connects the first shut-off valve, and the other end connects the third shut-off valve being connected with first pressure thief hatch, the second instrument
Filter one end connects the second shut-off valve, and the other end connects the 4th shut-off valve being connected with second pressure thief hatch, biomembrane mistake
Setting disinfection bypass between filter and pressure gauge, disinfection, which bypasses, is arranged the 5th shut-off valve, and the gas of the disinfection bypass connects
Mouth is airtight interface.
Preferably, the downstream of the second level high efficiency particulate air filter is additionally provided with pressure release effective filter comprising pressure release
High efficiency particulate air filter, pressure relief pipe and shut-off valve, one end of the pressure release high efficiency particulate air filter pass through the pressure relief pipe and described the
The enclosure interior of second level high efficiency particulate air filter downstream is connected to, and the shut-off valve is set on this section of pressure relief pipe, and the pressure release is high
The pressure relief pipe for imitating the other end of filter is connected to the shell of exhaust outlet airtight valve downstream.
The present invention achieves following advantageous effects compared with the existing technology:
1, biological safe type double-stage high-efficient air filter provided by the invention, every grade of high efficiency particulate air filter are equipped with upstream
Aerosol inlet, evenly mixing device, upstream aerosol thief hatch, downstream scanning leak detection device and downstream sampling of aerosol mouth,
Live in-situ scanning leak detection function can be implemented separately by guaranteeing every grade of high efficiency particulate air filter.
2, biological safe type double-stage high-efficient air filter provided by the invention, monitoring device of resistance can carry out gas in situ
Body circulation disinfection is provided with disinfection bypass, and disinfection bypass is made of sterilizing gas filling line and airtight interface, and is arranged in height
Filter upstream side is imitated, sterilizing gas can be made to continue instrument filter in penetration resistance monitoring device by external connection power, thus
Realization reliably sterilizes instrument filter.
3, biological safe type double-stage high-efficient air filter provided by the invention, is provided with pressure release effective filter,
Pressure release effective filter is built-in with high efficiency filter filter core, and two end interfaces are separately connected the shell in second level high efficiency particulate air filter downstream
On body and the pipeline in tail end venting mouth sealing valve downstream, it can avoid gas (vapour) body fumigation and cause pressure inside effective filter
Power is excessively high, forms security risk.
4, biological safe type double-stage high-efficient air filter provided by the invention, it is equal in the downstream of every grade of high efficiency particulate air filter
Disinfection Effect is set and verifies device, Disinfection Effect verifies device by shut-off valve, cavity, the fixed device of biological indicator and sealing cover
Composition, and equipped with biological indicator driving means, the fixed device of biological indicator can be passed through shut-off valve and push to filtering
Inside device, it can really reflect in device disinfecting process and verify gas Disinfection Effect.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of biological safe type double-stage high-efficient air filter in the present invention；
Fig. 2 is the structural schematic diagram of the first scanning leak detection device in the present invention；
Fig. 3 is the structural schematic diagram of the second scanning leak detection device in the present invention；
Fig. 4 is the first sterilizing gas inlet in the present invention, the second sterilizing gas inlet and sterilizing gas outlet
Structural schematic diagram；
Fig. 5 is the structural schematic diagram of the first disinfection verifying device and the second disinfection verifying device in the present invention；
Fig. 6 is the structural schematic diagram of filter resistance monitoring device in the present invention；
In figure: 1- bracket, 2- shell, 3- air inlet airtight valve, 4- exhaust outlet airtight valve, 5- first order high efficiency particulate air filter,
The second level 6- high efficiency particulate air filter, the first sterilizing gas of 7- inlet, the first aerosol of 8- inlet, the first sampled upstream of 9- mouth,
10- first mixes plate, the first scanning leak detection of 11- device, the disinfection verifying of 12- first device, the first sampled downstream of 13- mouth, 14- the
One electric interfaces, the second sterilizing gas of 15- inlet, the second aerosol of 16- inlet, the second sampled upstream of 17- mouth, 18-
Two mix under plate, the second scanning leak detection of 19- device, the disinfection verifying of 20- second device, 21- sterilizing gas outlet, 22- second
Swim thief hatch, the second electric interfaces of 23-, 24- filter replacement door, 25- filter resistance monitoring device, 26- driving motor,
27- scanning sample probe, 28- lead screw, 29- limit sensors, 30- sampling pipe, 31- fixing seat, 32- shut-off valve, 33- sealing
Lid, the fixed device of 34- shut-off valve, 35- accommodating cavity, 36- biological indicator, 37- sealing cover, 38- push rod, 39- limited block,
40- biological indicator, 41- seal assembly, 42- first pressure thief hatch, 43- second pressure thief hatch, the filtering of 44- first instrument
Device, 45- second instrument filter, 46- pressure gauge, the first shut-off valve of 47-, the second shut-off valve of 48-, 49- third shut-off valve, 50-
4th shut-off valve, the 5th shut-off valve of 51-, 52- sterilize bypass, 53- gas interface, 54- pressure release high efficiency particulate air filter, 55- relief tube
Road, 56- shut-off valve.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of biological safe type double-stage high-efficient air filters, are deposited with solving the prior art
The problem of.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Present embodiments provide a kind of biological safe type double-stage high-efficient air filter, as shown in Figure 1, include bracket 1,
It is set to the shell 2 at 1 top of bracket, the air inlet airtight valve 3 of 2 head end of shell is set to, is set to the exhaust outlet of 2 tail end of shell
Airtight valve 4 and first order high efficiency particulate air filter 5, the second level high efficiency filter being set in turn in along gas flow direction inside shell 2
Device 6；
The first sterilizing gas inlet 7, the first gas are provided on the shell 2 of 5 upstream end of first order high efficiency particulate air filter
Colloidal sol inlet 8 and the first sampled upstream mouth 9, wherein being correspondingly arranged on first inside shell 2 at the first aerosol inlet 8
Mix plate 10；The first scanning leak detection device 11 and first is provided on the shell 2 of 5 downstream of first order high efficiency particulate air filter to disappear
Poison verifying device 12, wherein the first sampled downstream mouth 13 and the second electric interfaces 23 of the first scanning leak detection device 11 are set to shell
On body 2；
The second sterilizing gas inlet 15, the second gas are provided on the shell 2 of 6 upstream end of second level high efficiency particulate air filter
Colloidal sol inlet 16 and the second sampled upstream mouth 17, wherein being correspondingly arranged on inside shell 2 at the second aerosol inlet 16
Second mixes plate 18；The second scanning leak detection device 19, are provided on the shell 2 of 6 downstream of second level high efficiency particulate air filter
Two disinfection verifying devices 20 and sterilizing gas outlet 21, wherein 22 He of the second sampled downstream mouth of the second scanning leak detection device 19
Second electric interfaces 23 are set on shell 2；
Shell 2 head end opposite with first order high efficiency particulate air filter 5, second level high efficiency particulate air filter 6 is respectively arranged with a filtering
Device replaces door 24；One is also respectively provided at the top of the shell 2 opposite with first order high efficiency particulate air filter 5, second level high efficiency particulate air filter 6
Filter resistance monitoring device 25, filter resistance monitoring device 25 are high for detecting first order high efficiency particulate air filter 5 and the second level
Imitate the pressure at 6 both ends of filter.
In the present embodiment, the first sampled upstream mouth 9 and the second sampled upstream mouth 17 are for testing first order high efficiency particulate air filter 5
With the aerosol concentration of 6 upstream of second level high efficiency particulate air filter, upper first sampled upstream mouth 9 and the second sampled upstream mouth 17 and shell
Interior sampling of aerosol pipe connection, the first order high efficiency particulate air filter 5 and second that the thief hatch of upstream aerosol sampling pipe corresponds to
6 center of grade high efficiency particulate air filter.First sampled upstream mouth 9 and the second sampled upstream mouth 17 are preferably selected with self-sealing function
Fast interface is sampled by being connected to external sampling of aerosol counting device, such as laser particle counter, photometer
Deng.
As shown in Figure 2 and Figure 3, in the present embodiment, the first scanning leak detection device 11 and the second scanning leak detection device 19 include
Driving motor 26, scanning sample probe 27, lead screw 28, limit sensors 29 and sampling pipe 30；
Driving motor 26 is set to outside shell 2, is additionally provided with a fixing seat on the shell 2 opposite with driving motor 26
31, one end of lead screw 28 and the power output end of driving motor 26 are sequentially connected, and the other end and fixing seat 31 of lead screw 28 rotate
Connection, scanning sample probe 27 are set to 2 inside of shell and are threadedly coupled with lead screw 28, and there are two limit inductor settings, and two
A limit sensors 29 are respectively arranged at top and bottom end inside shell 2；
30 one end of sampling pipe of first scanning leak detection device 11 is connect with scanning sample probe 27, the other end and the first downstream
Thief hatch 13 connects, and 30 one end of sampling pipe of the second scanning leak detection device 19 and scanning sample, which are popped one's head in, 27 to be connect, the other end and the
The connection of two sampled downstream mouths 22, the driving motor 26 of the first scanning leak detection device 11 and two limit sensors 29 and first are electrically
The electrical connection of interface 14, the driving motor 26 of the second scanning leak detection device 19 and two limit sensors 29 and the second electric interfaces 23
Electrical connection.
In the present embodiment, the first sampled downstream mouth 13 and the second sampled downstream mouth 22 are the fast grafting with sealing function
Mouthful.
The scanning leak detection course of work in the present embodiment is as follows:
Aerosol hair dirt device is connected to the first aerosol inlet 8 and the second aerosol inlet 16, it is molten to open gas
Glue sends out dirt device and aerosol occurs, and the first mixing plate 10 and the second mixing plate 18 are adjusted to uprush direction, aerosol is made
Reach mixed effect；Power supply line is respectively connected to the first electric interfaces 14 and the second electric interfaces 23, is the first scanning leak detection
The power supply of the driving motor 26 of device 11 and the second scanning leak detection device 19, passes through pipeline for a sampling of aerosol counting device respectively
It is connected to the first sampled downstream mouth 13 and the second sampled downstream mouth 22, opens sampling of aerosol counting device, sampling of aerosol meter
Counting apparatus begins through the air that scanning sample probe 27 aspirates the first high efficiency particulate air filter and the second high efficiency particulate air filter downstream respectively,
To detect the aerosol concentration in air downstream, meanwhile, it is rotated using scanning leak detection control device control driving motor 26, in silk
Under the action of thick stick 28 rotates, scanning sample probe 27 moves up and down, to scan entire first high efficiency particulate air filter and the second efficient mistake
Filter and its installation frame；Original place scanning is carried out simultaneously respectively to the first high efficiency particulate air filter and the second high efficiency particulate air filter with this to pick up
Leakage.
As shown in figure 4, in the present embodiment, the first sterilizing gas inlet 7, the second sterilizing gas inlet 15 and disinfection gas
Body outlet 21 is an airtight interface for having shut-off valve 32, and the interface end of airtight interface is additionally provided with sealing cover 33.
As shown in figure 5, being all provided in the present embodiment in the upstream of first order high efficiency particulate air filter 5 and second level high efficiency particulate air filter 6
Above-mentioned sterilizing gas inlet is set, and accordingly setting Disinfection Effect verifies device in the downstream of the two, realizes to every grade efficiently
Filter carries out gas disinfection and Evaluation of Disinfection；Specifically, the first disinfection verifying device 12 and second disappears in the present embodiment
Poison verifying device 20 include shut-off valve 34, the accommodating cavity 33 being connect with shut-off valve 34, biological indicator fixation device 36 and
The sealing cover 37 being tightly connected with 33 shell of accommodating cavity, the middle part of sealing cover 37 are equipped with a biological indicator push rod 38,
38 one end of push rod is provided with limited block 39, and the other end is fixedly connected with the fixed device 36 of biological indicator, and biological indicator is solid
Shut-off valve 34 can be passed through for the fixed device 36 of biological indicator and push away for placing biological indicator 40, push rod 38 by determining device 36
It send to shell 2, the end and 39 opposite end of limited block of sealing cover 37, which are provided with, is slidingly sealed component 41, is slidingly sealed component
41 can make push rod 38 keep sealing with sealing cover 37 in sliding process.
As shown in fig. 6, filter resistance monitoring device 25 is pressed including first pressure thief hatch 42, second in the present embodiment
Power thief hatch 43, at least two shut-off valves, first instrument filter 44, second instrument filter 45, pressure gauge 46；First pressure
Thief hatch 42 is respectively arranged on the shell 2 of 6 upstream end of 5 upstream end of first order high efficiency particulate air filter and second level high efficiency particulate air filter,
Second pressure thief hatch 43 is respectively arranged at 6 downstream of 5 downstream of first order high efficiency particulate air filter and second level high efficiency particulate air filter
On shell 2；46 both ends of pressure gauge are connect with first pressure thief hatch 42, second pressure thief hatch 43 respectively by pipeline, and the
One instrument filter 44 and second instrument filter 45 are respectively arranged on the pipeline at 46 both ends of pressure gauge；First instrument filter
44 one end connect the first shut-off valve 47, and the other end connects the third shut-off valve 49 being connected with first pressure thief hatch 42, the second instrument
45 one end of table filter connects the second shut-off valve 48, and the other end connects the 4th shut-off valve being connected with second pressure thief hatch 43
50, setting disinfection bypass 52 between biological film filter and pressure gauge 46, disinfection, which bypasses, is arranged the 5th shut-off valve 51 on 52；And disappear
The gas interface 53 of poison bypass 52 is airtight interface.
It in disinfecting process, is spread by sterilizing gas merely, it is difficult to thorough disinfection effectively be carried out to instrument filter, led
It causes that the risk that pathogenic microorganism leaks easily occurs when replacing instrument filter.Therefore, it is provided with for sterilizing bypass 52, it can be with
It drives sterilizing gas to penetrate instrument filter by external connection power to carry out disinfection, guarantee the validity of disinfection, to improve biology
Safety；Further, filter resistance monitoring device 25 provided in this embodiment closes the 5th section when carrying out resistance detection
Only valve 51, remaining four shut-off valve is open state；When carrying out disinfection to instrument filter, then the first shut-off valve 47 is closed
With the second shut-off valve 48, third shut-off valve 49, the 4th shut-off valve 50 and the 5th shut-off valve 51 are opened, sterilizing gas is connect by closed
Mouth carries out disinfection to first instrument filter 44 and second instrument filter 45 into bypass.
The downstream of second level high efficiency particulate air filter 6 is additionally provided with pressure release effective filter comprising pressure release high efficiency particulate air filter
54, one end of pressure relief pipe 55 and shut-off valve 56, pressure release high efficiency particulate air filter 54 passes through pressure relief pipe 55 and second level high efficiency filter
Be connected to inside the shell 2 of 6 downstream of device, shut-off valve 56 is set on this section of pressure relief pipe 55, pressure release high efficiency particulate air filter 54 it is another
The pressure relief pipe 55 of one end is connected to the shell 2 of 4 downstream of exhaust outlet airtight valve.
Pressure release effective filter 54 is mainly used for carrying out safety in disinfection verification process for air filtering apparatus
Pressure release, because sterilizing gas gradually occurs usually in gaseous decontamination process and sterilizing equipment decontaminating apparatus with effective filter is closed
Connection, will lead to entire decontamination system (including two effective filters) interior pressure thus and gradually rises, deposit in disinfecting process
In the greater risk of damage sterilizing machine and effective filter, and sterilizing gas is easy to cause to leak to outside effective filter
Personal threat is caused to periphery staff.In disinfecting process, the shut-off valve 56 of pressure release effective filter 54 is opened, can be incited somebody to action
Cause the excessive gas of pressure rise to drain into the exhaust duct in effective filter downstream after high efficiency filter, and finally arranges
To outdoor, to safely and effectively reduce the pressure in decontamination system.
Disinfection process in the present embodiment is as follows:
By the sterilizing gas air supply opening of sterilizing machine respectively with the first sterilizing gas inlet 7 and the second sterilizing gas inlet
15 airtight interface and the airtight interface airtight connection of disinfection bypass 52, and the recovery port of sterilizing machine and sterilizing gas are discharged
Biological indicator 40 is placed on the fixed device 34 of biological indicator and is pushed into shell 2 by the airtight interface airtight connection of mouth 21
Inside opens simultaneously the shut-off valve of pressure release effective filter, closes 25 first shut-off valve of filter resistance monitoring device, 47 He
Second shut-off valve 48 opens third shut-off valve 49, the 4th shut-off valve 50 and the 5th shut-off valve of filter resistance monitoring device 25
51；It is then turned on sterilizing machine and sterilizing gas occurs, circulation disinfection is carried out to air filtering apparatus inside.After disinfection,
Biological indicator 40 is taken out, the first sterilizing gas inlet 7, the second sterilizing gas inlet 15 and sterilizing gas outlet are closed
21 shut-off valve 32 and the shut-off valve 56 of pressure release effective filter, entire disinfection process terminate.
Invention applies a specific example illustrates the principle and implementation of the invention, above embodiments are said
It is bright to be merely used to help understand method and its core concept of the invention；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.To sum up, the content of the present specification should not manage
Solution is limitation of the present invention.
Claims (8)
1. a kind of biological safe type double-stage high-efficient air filter, it is characterised in that: including bracket, be set to the top of support
The shell in portion, the air inlet airtight valve for being set to the shell head end, the exhaust outlet airtight valve for being set to the shell tail end and
First order high efficiency particulate air filter, the second level high efficiency particulate air filter of the enclosure interior are set in turn in along gas flow direction；
The first sterilizing gas inlet, the first gas are provided on the shell of first order high efficiency particulate air filter upstream end
Colloidal sol inlet and the first sampled upstream mouth, wherein the enclosure interior at the first aerosol inlet is correspondingly arranged on
First mixes plate；Be provided on the shell of first order high efficiency particulate air filter downstream the first scanning leak detection device and
First disinfection verifying device, wherein the first sampled downstream mouth of the first scanning leak detection device and the first electric interfaces are set to
On the shell；
The second sterilizing gas inlet, the second gas are provided on the shell of second level high efficiency particulate air filter upstream end
Colloidal sol inlet and the second sampled upstream mouth, wherein the enclosure interior at the second aerosol inlet is correspondingly arranged on
Second mixes plate；Be provided on the shell of second level high efficiency particulate air filter downstream the second scanning leak detection device,
Second disinfection verifying device and sterilizing gas outlet, wherein the second sampled downstream mouth of the second scanning leak detection device and the
Two electric interfaces are set on the shell；
The shell head end opposite with the first order high efficiency particulate air filter, the second level high efficiency particulate air filter is respectively arranged with one
Filter replacement door；The case top opposite with the first order high efficiency particulate air filter, the second level high efficiency particulate air filter is also
It is respectively arranged with a filter resistance monitoring device, the filter detection device is for detecting the first order high efficiency particulate air filter
With the pressure at second level high efficiency particulate air filter both ends.
2. biological safe type double-stage high-efficient air filter according to claim 1, it is characterised in that: on described first
Thief hatch and the second sampled upstream mouth are swum as the fast interface with sealing function, and the first sampled upstream mouth and institute
It states the second sampled upstream mouth and is set to the intracorporal sampling of aerosol pipe of the shell with one respectively and connect, the sampling of aerosol pipe
Thief hatch corresponds to the first order high efficiency particulate air filter and second level high efficiency particulate air filter center.
3. biological safe type double-stage high-efficient air filter according to claim 1, it is characterised in that: described first sweeps
Retouch leakage detection apparatus and the second scanning leak detection device include driving motor, scanning sample probe, lead screw, limit sensors and
Sampling pipe；
The driving motor is set to the hull outside, and it is solid that one is additionally provided on the shell opposite with the driving motor
The power output end of reservation, one end of the lead screw and the driving motor is sequentially connected, the other end of the lead screw with it is described
Fixing seat rotation connection, the scanning sample probe are set to the enclosure interior and connect with the threads of lead screw, the limit
There are two position inductor settings, and two limit sensors are respectively arranged at the top and bottom end of the enclosure interior；
Described sampling pipe one end of the first scanning leak detection device and scanning sample probe connect, the other end and described the
The connection of one downstream thief hatch, described sampling pipe one end of the second scanning leak detection device and scanning sample probe connect,
The other end is connect with the second sampled downstream mouth, the driving motor of the first scanning leak detection device and two limits
Level sensor is electrically connected with first electric interfaces, described in the driving motor of the second scanning leak detection device and two
Limit sensors are electrically connected with second electric interfaces.
4. biological safe type double-stage high-efficient air filter according to claim 3, it is characterised in that: under described first
It swims thief hatch and the second sampled downstream mouth is the fast interface with sealing function.
5. biological safe type double-stage high-efficient air filter according to claim 1, it is characterised in that: described first disappears
Poisonous gas inlet, the second sterilizing gas inlet and the sterilizing gas outlet are one closed with shut-off valve
Interface, and the interface end of the airtight interface is additionally provided with sealing cover.
6. biological safe type double-stage high-efficient air filter according to claim 1, it is characterised in that: the first disinfection is tested
Card device and the second disinfection verifying device include shut-off valve, the accommodating cavity connecting with the shut-off valve, microbial administration
Device and the sealing cover with accommodating cavity shell sealed connection are fixed in agent, are equipped with a biology in the middle part of the sealing cover and are referred to
Showing agent push rod, described push rod one end is provided with limited block, and the other end is fixedly connected with the fixed device of the biological indicator,
The fixed device of the biological indicator can be by the fixed dress of the biological indicator for placing biological indicator, the push rod
It sets and pushes to the enclosure interior across the shut-off valve, the end of the sealing cover and the limited block opposite end are provided with cunning
Dynamic sealing assembly, the component that is slidingly sealed can make the push rod keep sealing with the sealing cover in sliding process.
7. biological safe type double-stage high-efficient air filter according to claim 1, it is characterised in that: the filter
Monitoring device of resistance include first pressure thief hatch, second pressure thief hatch, at least two shut-off valves, first instrument filter,
Second instrument filter, pressure gauge；First pressure thief hatch is respectively arranged at first order high efficiency particulate air filter upstream end and institute
On the shell for stating second level high efficiency particulate air filter upstream end, second pressure thief hatch is respectively arranged at the efficient mistake of the first order
On the shell of filter downstream and second level high efficiency particulate air filter downstream；Pressure gauge both ends by pipeline respectively with institute
State first pressure thief hatch, second pressure thief hatch connection, and the first instrument filter and the second instrument mistake
Filter is respectively arranged on the pipeline at the pressure gauge both ends；First instrument filter one end connects the first shut-off valve, separately
One end connects the third shut-off valve being connected with first pressure thief hatch, the second cut-off of second instrument filter one end connection
Valve, the other end connect the 4th shut-off valve being connected with second pressure thief hatch, and setting disappears between biological film filter and pressure gauge
Poison bypass, disinfection, which bypasses, is arranged the 5th shut-off valve, and the gas interface of the disinfection bypass is airtight interface.
8. biological safe type double-stage high-efficient air filter according to claim 1, it is characterised in that: the second level
The downstream of high efficiency particulate air filter is additionally provided with pressure release effective filter comprising pressure release high efficiency particulate air filter, pressure relief pipe and cut-off
Valve, one end of the pressure release high efficiency particulate air filter pass through the shell of the pressure relief pipe and second level high efficiency particulate air filter downstream
Inside connection, the shut-off valve are set on this section of pressure relief pipe, the pressure relief pipe of the other end of the pressure release high efficiency particulate air filter
It is connected to the shell of exhaust outlet airtight valve downstream.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195192.0A CN109078404A (en) | 2018-10-15 | 2018-10-15 | A kind of biological safe type double-stage high-efficient air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811195192.0A CN109078404A (en) | 2018-10-15 | 2018-10-15 | A kind of biological safe type double-stage high-efficient air filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109078404A true CN109078404A (en) | 2018-12-25 |
Family
ID=64843386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811195192.0A Pending CN109078404A (en) | 2018-10-15 | 2018-10-15 | A kind of biological safe type double-stage high-efficient air filter |
Country Status (1)
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| CN (1) | CN109078404A (en) |
Cited By (5)
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| CN111330044A (en) * | 2020-03-10 | 2020-06-26 | 保山市质量技术监督综合检测中心 | Sterilizing device |
| CN113008467A (en) * | 2021-02-24 | 2021-06-22 | 军事科学院系统工程研究院卫勤保障技术研究所 | Air cleaner integrality on-line monitoring device |
| CN113384964A (en) * | 2021-07-01 | 2021-09-14 | 康斐尔过滤设备(太仓)有限公司 | Filter |
| CN113828653A (en) * | 2021-09-30 | 2021-12-24 | 攀钢集团西昌钢钒有限公司 | Roll gap air blocking system |
| CN115430237A (en) * | 2022-10-10 | 2022-12-06 | 辽宁科泰环境科技有限公司 | Vertical air inlet and outlet isolation protection filtering system |
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