CN109718871A - Three-grade biological safety cabinet - Google Patents
Three-grade biological safety cabinet Download PDFInfo
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- CN109718871A CN109718871A CN201711045532.7A CN201711045532A CN109718871A CN 109718871 A CN109718871 A CN 109718871A CN 201711045532 A CN201711045532 A CN 201711045532A CN 109718871 A CN109718871 A CN 109718871A
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Abstract
The invention discloses a kind of three-grade biological safety cabinets, it solves in the prior art since poor sealing leads to problems such as hazardous materials spillage pollute, its technical solution is: including fan assembly, operation cabinet and filter assemblies, operating cabinet includes exposure chamber, filter assemblies include powered air-purifying device and exhaust-air filter, powered air-purifying device and exhaust-air filter are fixedly mounted on the top of operation cabinet, and powered air-purifying device and exhaust-air filter are connected to exposure chamber；Powered air-purifying device and exhaust-air filter, which correspond, is connected with differential pressure indicator, and differential pressure indicator is fixedly mounted on the operation top of the box；Differential pressure indicator is configured to examine the pressure difference of powered air-purifying device and exhaust-air filter.The design of the technical essential, tightness is good, can hunt leak to filter device, replaces in time, and air-tightness is good, can effectively avoid being formed by harmful substance during checked operation and is diffused into experimental place and pollutes.
Description
Technical field
The present invention relates to testing to pathogenic microorganism and the biometric security device of analysis, more particularly to one kind three
Grade Biohazard Safety Equipment.
Background technique
Currently, in order to fast and accurately be diagnosed to infectious diseases, it is often necessary to be carried out to pathogenic microorganism comprehensive
Inspection and analysis.It is that humans and animals have pathogenic microorganism in view of pathogenic microorganism, easily causes infection and even pass
It catches an illness, therefore durings carrying out detection and experimental implementation etc. to pathogenic microorganism, harmful bioaerosol easy to form, such as
The harmful bioaerosol of fruit diffuses in laboratory, it will greatly increases the disease infection risk of staff, serious prestige
The personal safety of staff is coerced, or even serious pollution is caused to the environment in laboratory itself and periphery, weight can be caused
Big public health event.Therefore, it in order to guarantee the personal safety of staff, when testing to pathogenic microorganism, needs
Establish the checked operation environment of sealed reliable.
In recent years, the threat of strong pathogenic microorganism increasingly sharpens in the world, and strong pathogenic microorganism is caused
Infection does not have effective treatment and prevention control measure usually.Therefore, to reduce infection risk, operation can cause mankind's activity
(very) the strong pathogenic microorganism of serious disease when, it usually needs can carry out completely isolated operation have it is high biology peace
It is carried out in the high-grade Biohazard Safety Equipment of holotype energy.
But China mainly uses the primary protective barrier based on II grade of Biohazard Safety Equipment to carry out pathogenic microorganism at present
Operation, the operation window of these Biohazard Safety Equipments, which only passes through air-flow, prevents harmful substance in cabinet from leaking, but the toxic of its inside has
Evil particle be easy because personnel it is improper operation cause it is filtered due to leak into outside, to the environment of experimental place itself and periphery
It pollutes, seriously injures the personal safety of experimental work personnel.
Therefore, it is necessary to develop a kind of device, experimental work personnel can be allowed to carry out strong pathogenic microorganism inside it
Various experimental implementations, have good tightness, can effectively avoid being formed by harmful substance expansion during checked operation
It is scattered in experimental place, prevents the environment to experimental place itself and periphery from polluting, and guarantee the people of staff
Body safety.
Summary of the invention
In view of this, that the object of the present invention is to provide a kind of air-tightness is good, can effectively avoid sending out during checked operation
The three-grade biological safety cabinet of raw leakage.
To achieve the above object, the present invention provides the following technical scheme that a kind of three-grade biological safety cabinet, including blower fan group
Part, operation cabinet and filter assemblies, the operation cabinet include exposure chamber, and the filter assemblies include powered air-purifying device and row
Wind filter device, the powered air-purifying device and the exhaust-air filter are fixedly mounted on the top of the operation cabinet,
And the powered air-purifying device and the exhaust-air filter are connected to the exposed chamber；
The powered air-purifying device and the exhaust-air filter, which correspond, is connected with differential pressure indicator, the fixed peace of the differential pressure indicator
Mounted in the operation top of the box；
The differential pressure indicator is configured to examine the pressure difference of the powered air-purifying device and the exhaust-air filter.
By using above-mentioned technical proposal, the powered air-purifying device and exhaust-air filter being connected to exposure chamber are installed in
The top of the operation cabinet so that the present invention using gas it is enterprising it is upper go out by the way of, facilitate leak detection, can quickly find to filter
The problem of device occurs during the work time solves in time, and filter replacement is convenient；Along with powered air-purifying device and air draft
Filter device is respectively connected with the differential pressure indicator for examining its pressure difference, and whether can be monitored in real time has impurity in filter device, can and
Shi Genghuan filter avoids filter from having too many impurity and influence conventional efficient and effect.
The present invention is further arranged to: the fan assembly includes breeze fan and exhaust fan；
The breeze fan and the powered air-purifying device pass through pipeline connection；
The exhaust fan and the exhaust-air filter pass through pipeline connection；
The exhaust-air filter includes second level exhaust-air filter and level-one exhaust-air filter, the second level air draft filtering dress
It sets and is connected with the level-one exhaust-air filter；
The second level exhaust-air filter is connected to the exhaust fan；
The level-one exhaust-air filter is connected to the exposed chamber.
By using above-mentioned technical proposal, the intracavitary exhaust gas of exposure first passes through the filtering of the first exhaust-air filter, then passes through
Second level exhaust-air filter misgivings are crossed, are then handled via exhaust fan extraction, dual mistake is carried out to the intracavitary exhaust gas of exposure
Filter, so that the exhaust gas of discharge is cleaner, pollution is smaller, reduces experiment risk, improves safety.
The present invention is further arranged to: the operation cabinet includes left plate and right panel, is installed on the left plate and/or right panel
There is transferring cabin；
The transferring cabin includes cabin, transferring cabin import and transferring cabin outlet, and the cabin is in the transferring cabin exit and institute
State exposed chamber connection；
The transferring cabin entrance and the transferring cabin exit are mounted on sealing door component, for complete the transferring cabin into
The closure or unlatching of mouth and transferring cabin outlet；
The transferring cabin is connected with cabin filter device, and the cabin filter device is connected to by pipeline with the cabin, described
Cabin filter device is connect with the exhaust fan；
The cabin is connected to the level-one exhaust-air filter.
By using above-mentioned technical proposal, the present invention can to transferring cabin cabin room ventilation to being cleaned in cabin,
The experimental facilities that transferring cabin can be made to pass out first cleans to be transferred out again, and the experimental facilities of transmitting is avoided to carry harmful substance
External environment is entered to pollute.
The present invention is further arranged to: the sealing door component includes being mounted on the first sealing of the transferring cabin entrance
Door component and the second sealing door component for being mounted on the transferring cabin exit, the first sealing door component and described second close
Closure door component is located inside and outside the exposed chamber；
The second sealing door component includes that flexible power device and reinforcing rod, the flexible power device and the reinforcing rod are equal
It is hingedly mounted on left plate and/or the right panel of the transferring cabin side；
The reinforcing rod is fixedly connected with towards transferring cabin side and exports the revolving door matched, the rotation with the transferring cabin
Door is hinged with the flexible power device；
The flexible power plant configurations are rotated at the drive reinforcement and the revolving door；
The revolving door is configured to be closed or open the transferring cabin outlet.
By using above-mentioned technical proposal, revolving door can rotate under the drive of flexible power device in primary plane,
Other excessive spaces will not be occupied when opening, will not influence the intracavitary experimental implementation of exposure；Meanwhile not having to hand and touching rotation
Door, revolving door directly open and close under the drive of flexible power device, and high degree of automation is easy to operate.
The present invention is further arranged to: the flexible power device includes electric pushrod, and the electric pushrod connection is useful
In the power distribution cabinet for controlling the electric pushrod movement.
By using above-mentioned technical proposal, using electric device control electric pushrod movement, so that revolving door is driven to rotate,
Structure is simple, high degree of automation, easy to operate.
The present invention is further arranged to: rail assembly is fixedly installed in the cabin, the rail assembly is vertically described
Transferring cabin import and the transferring cabin export direction extend；
Supporting plate is fixedly installed on the rail assembly；
The rail assembly is configured to that the supporting plate is driven to slide along the rail assembly extending direction；
The supporting plate is configured to support and carries experimental facilities in the cabin along rail assembly extending direction sliding.
By using above-mentioned technical proposal, experimental facilities can be placed on to slide on supporting plate when transmitting experimental facilities and pass by transferring cabin
It send, structure is simple, and experimenter does not have to for hand to be deep into the i.e. transmittable experimental facilities in cabin depths, easy to operate.
The present invention is further arranged to: the slide track component includes being respectively and fixedly installed to the cabin or so two side walls
On support, sliding slot is fixedly installed on the support, the both ends of the supporting plate are respectively embedded in side at left and right sides of the cabin
In sliding slot on wall.
By using above-mentioned technical proposal, sliding slot supporting plate fit system, structure is simple, easy for installation, and slides steady.
The present invention is further arranged to: the operation cabinet is separately installed in the left plate and/or the adjacent two sides of right panel
Front door and back door；
Interconnecting piece is installed on one edge at the front door and/or the back door, be equipped on the operation cabinet with it is described
The rotating seat that interconnecting piece matches, the interconnecting piece are connect with the rotating seat；
The front door and/or the back door are configured to rotate around edge where the interconnecting piece；
The front door and/or the back door are hingedly connected with pneumatic spring, are hingedly equipped with pneumatic spring on the operation cabinet
Seat, the pneumatic spring are hingedly connected on the pneumatic bomb spring abutment；
The pneumatic spring is connect with the Pneumatic power device for controlling the pneumatic spring movement；
The pneumatic spring is configured to that the front door and/or the back door is driven to rotate the opening and closing of fault for completing exposure chamber；
When the exposed chamber is closed completely, the pneumatic spring is in the raw.
By using above-mentioned technical proposal, front door and/or back door are set as to open the door, convenient to exposure when in need
It is intracavitary to be operated, cleaned.
The present invention is further arranged to: the interconnecting piece be it is multiple, multiple interconnecting pieces are evenly distributed be mounted on it is described
The top sides edge at front door and/or the back door；
The pneumatic spring is set as two, and two pneumatic springs are symmetrically mounted on the front door and/or the back door
The left and right sides.
By using above-mentioned technical proposal, so that front door and/or back door uniform force, avoid front door and/back door from opening
During be damaged due to unbalance stress, improve the service life at front door and/or back door.
The present invention is further arranged to: the bottom of the exposed chamber is provided with waste liquid tank；
The waste liquid tank is configured to accommodate the intracavitary waste liquid of the exposure.
By using above-mentioned technical proposal, the setting of waste liquid tank, the convenient waste liquid intracavitary to exposure is collected and clears up,
It is easy to operate.
Technical solution of the present invention, airtightness is relatively good, and can hunt leak to filter device, in time replace impurity compared with
More filters etc. can allow experimental work personnel to carry out the various experimental implementations of strong pathogenic microorganism inside it, tool
Standby good tightness, capable of effectively avoiding checked operation, being formed by harmful substance is diffused into experimental place in the process, prevents
The environment of test site itself and periphery is polluted, and guarantees the personal safety of staff, is prevented great public
The generation of health event, is of great practical significance.
Detailed description of the invention
Hereinafter with reference to the accompanying drawings and embodiment some specific implementations of mode detailed description of the present invention and not restrictive
Example.Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that this
A little attached drawings are not necessarily to scale drafting.
Fig. 1 is a kind of structural schematic diagram of three-grade biological safety cabinet of the present invention；
Fig. 2 is another structural schematic diagram of three-grade biological safety cabinet of the present invention；
Fig. 3 is the structural schematic diagram of the transferring cabin of three-grade biological safety cabinet of the present invention.
In attached drawing: 1. fan assemblies；2. powered air-purifying device；3. butterfly valve；4. pressure difference gauge stand；5. second level air draft filtering dress
It sets；6. differential pressure indicator；7. level-one exhaust-air filter；The first air inlet of 7a.；The second air inlet of 7b.；8. front door；9. back door；10.
Transferring cabin；The cabin 10a.；11. transferring cabin entrance hatch door；12. reinforcing rod；13. electric pushrod；14. revolving door；15. waste liquid
Slot；16. transferring cabin powered air-purifying device；17. power distribution cabinet；18. interconnecting piece；19. rotating seat；20. computer display screen；21. illumination
Device；22. support；23. sliding slot；24. supporting plate；25. operating cabinet；25a. exposes chamber.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below with reference to Fig. 1 to Fig. 3 to this
The embodiment of invention three-grade biological safety cabinet is described further.
A kind of three-grade biological safety cabinet, including fan assembly, operation cabinet 25, top assembly, support component and transferring cabin
Component.
Fan assembly 1 includes the breeze fan for air-supply and the exhaust fan for air draft.
Operating cabinet 25 includes top plate and bottom plate, former and later two operation ports, left plate and right panel, the punishment of former and later two operation ports
Front door 8 and back door 9 are not installed, top plate and bottom plate, front door 8, back door 9, left plate and right panel enclose exposed chamber 25a, for accommodating
Experimental animal and experimental facilities carry out experimental implementation；Front door 8 and back door 9 include installing frame and door glass, are offered in door glass
At least two handle holes are sealed and installed with operating gloves (not representing in figure) at handle hole, and experimenter can wear behaviour
Make gloves hand extend into exposed chamber 25a to carry out experimental implementation.
Top assembly is fixedly mounted on the roof of operation cabinet 25, including filter assemblies, and filter assemblies include blowing
Filter device 2 and exhaust-air filter, wherein exhaust-air filter includes second level exhaust-air filter 5 and level-one air draft filtering dress
7 are set, powered air-purifying device 2 and exhaust-air filter include air inlet and air outlet, the preferred embodiment for the present invention are as follows: air-supply
The air inlet of filter device 2 is connected to breeze fan, and the air outlet of powered air-purifying device 2 is connected to exposure chamber 25a；Level-one air draft
The air inlet of filter device 7 is connected to exposure chamber, air outlet and the second level exhaust-air filter 5 of level-one exhaust-air filter 7
Air inlet connection, the air outlet of second level exhaust-air filter 5 are connected to exhaust fan；Blower is sent to blow, gas is by air-supply
Filter device 2 is fed in exposed chamber 25a after filtering, and the exhaust gas in exposure chamber 25a successively passes through under exhaust fan effect
Level-one exhaust-air filter 7 and second level exhaust-air filter 5 filter, and are then handled via exhaust fan discharge.
Transferring cabin component is fixedly mounted on left plate and/or the right panel of operation cabinet 25, and transferring cabin component can individually pacify
It in left plate, can also be arranged separately on right panel, can also be installed respectively in left plate and right panel, the present invention is preferably implemented
Mode are as follows: through-hole is offered in the left plate of operation cabinet 25, transferring cabin component includes transferring cabin 10, and transferring cabin 10 includes cabin
10a, transferring cabin import, transferring cabin outlet, transferring cabin import and transferring cabin outlet be oppositely arranged at left and right sides of transferring cabin 10 and
It is connected, transferring cabin 10 exports the integrally molded mounting flange in side in transferring cabin, and mounting flange passes through screw and operation cabinet 25
Left plate be fixedly connected, the cabin 10a of transferring cabin 10 is connected by the through-hole in transferring cabin outlet, left plate with exposed chamber 25a,
For extraneous experiment appliance to be transmitted in exposed chamber 25a by transferring cabin 10.In experiment appliance transmission process, can directly it use
Hand, which is extend into the 10a of cabin, takes, puts experiment appliance etc., and transmitting device can also be arranged in the 10a of cabin, and transmitting device can be adopted
With the slide track component finished product of outsourcing, the preferred embodiment for the present invention are as follows: be directly fixedly connected in the side wall screwing of cabin 10a
" L " type support 22,22 screwing of support connection or it is integrally molded " [" type sliding slot 23, the both ends of supporting plate 24 be respectively embedded in " ["
Sliding in type sliding slot 23；Bidirectional sliding rail, two-way cunning can also be symmetrically installed in opposite two upright side walls of cabin 10a
Rail includes slide track seat, and slide track seat is fixedly mounted on the side wall of cabin 10a by screw, and cooperation is slidably fitted with cunning on slide track seat
Item, is fixedly installed with supporting plate 24 between two draw runners, concrete mode be supporting plate 24 two sides respectively correspond solder paste cementation it is fixed or
Person's screw is fixed on two draw runners, and the sliding of supporting plate 24 is driven by sliding draw runner；In order to enable experiment appliance etc. is transmitting
Pick and place in the process more convenient, the present invention is preferably that the length of sliding slot 23 or slide track seat is consistent with the length of cabin 10a, experimenter
It can be exported in transferring cabin or transferring cabin entrance pulls supporting plate 24, without hand to be extend into the 10a of cabin.
Support component is located at the lower position of operation cabinet 25, plays a supportive role to operation cabinet 25, including support frame, branch
Support includes object placing cavity, and the experiment appliance in order to guarantee conveying is clean and sterile, and transferring cabin filter device 16 is placed in object placing cavity,
The filter housings of transferring cabin filter device 16 are placed in object placing cavity, can directly be placed, and can also be fixed with bolt, transferring cabin
The air inlet of filter device 16 can be connected to breeze fan, can also be with natural air inlet, the cabin of air outlet and transferring cabin 10
10a connection；In order to which to cleaning in the 10a of cabin, cabin 10a is connected to level-one exhaust-air filter 7, concrete mode are as follows:
The air inlet of level-one exhaust-air filter 7 is set as one, but pipeline is divided into two branches, one of branch and exposure chamber 25a
Connection, another branch are connected to cabin 10a；It can also set the air inlet of level-one exhaust-air filter 7 to two, first
Air inlet 7a and the second air inlet 7b, wherein the first air inlet 7a is connected to by pipeline with exposure chamber 25a, the second air inlet 7b is logical
Pipeline is crossed to be connected to cabin 10a.
Further, transferring cabin import and transferring cabin exit are mounted on sealing door component, and sealing door component includes the
One sealing door component and the second sealing door component, the first sealing door component are mounted on transferring cabin entrance, the second sealing door component
It is mounted on transferring cabin exit, specific embodiment are as follows: the first sealing door component includes the first hermatic door 11 and hinge, hermatic door
11 are mounted on transferring cabin 10 by hinge, and the first hermatic door 11 matches with transferring cabin import, for being closed or opening transmitting
Cabin import；Second sealing door component includes revolving door 14, reinforcing rod 12 and electric pushrod 13, and revolving door 14 exports phase with transferring cabin
Matching, for being closed or opening transferring cabin outlet, revolving door 14 is integrally molded towards the exposure side chamber 25a or screw is fixed and connected
It is connected to reinforcing rod 12, the left plate articulated connection of 12 one end of reinforcing rod and operation cabinet 25, electric pushrod 13 includes mounting cylinder and stretches
The left plate of contracting bar, mounting cylinder and operation cabinet 25 is articulated and connected, and one end that telescopic rod stretches out mounting cylinder hingedly connects with reinforcing rod 12
It connects；Power distribution cabinet is placed in the object placing cavity of support component, electric pushrod 13 is electrically connected with power distribution cabinet.In order to guarantee the first hermatic door
The favorable sealing property of component and the second sealing door component in transferring cabin import and transferring cabin outlet closure, the first hermatic door 11
It is mounted on sealing ring when installing with revolving door 14, and is additionally provided with limiting device, limiting device packet in the second sealing door component
The card slot for including integrally molded 12 one end of limited post and reinforcing rod in operation 25 left plate of cabinet, when transferring cabin, which exports, to be closed,
Limited post is stuck in card slot, and limited post limitation reinforcing rod 12 no longer rotates, so that revolving door 14 be fixed.
When work, fan assembly 1, breeze fan air-supply are opened, gas enters after powered air-purifying device 2 is filtered
In exposure chamber 25a, the exhaust gas after testing successively carries out via level-one exhaust-air filter 7 and second level exhaust-air filter 5 double
Then heavy filtration is handled by exhaust fan extraction.Horizontal blast filter device 2, level-one exhaust-air filter 7 and second level row
It is provided with pressure detecting interface on wind filter device 5, operates and is fixedly installed with pressure difference gauge stand 4, pressure difference on the top plate of cabinet 25
Be fixedly mounted on gauge stand 4 there are three differential pressure indicator 6, three differential pressure indicators 6 correspond respectively with powered air-purifying device 2, second level air draft
Filter device 5 is connected with the pressure detecting interface of level-one exhaust-air filter 7, for examining powered air-purifying device 2, second level air draft
The pressure difference of filter device 5 and level-one exhaust-air filter 7 during the work time indicates blocking in filter if pressure difference is larger,
Need replacing filter.
When need to exposure chamber 25a in transmission experiment apparatus/will exposure chamber 25a in experiment appliance take out when, first close
Revolving door 14 opens the first hermatic door 11/ and closes the first closing door 11 opening revolving door 14, pulls outside supporting plate 24 to cabin 10a
Side, hand-held experiment appliance are placed on supporting plate 24, supporting plate 24 are pushed back in the 10a of cabin, the first hermatic door 11/ is then shut off
Revolving door 14 opens 14/ first hermatic door 11 of revolving door, supporting plate 24 is pulled out, the experiment appliance on supporting plate 24 is removed, by supporting plate
24 push back, and close 14/ first hermatic door 11 of revolving door, complete the transmission process of experiment appliance.
Further embodiment of the present invention are as follows: the present invention, which can be set to front door 8 and back door 9, cannot not open the door, can also be with
It is that can open the door that front door 8, which is separately provided, and can also be separately provided as back door 9 is that can open the door, and the present invention is preferably that the sealing of back door 9 is fixed
It is mounted on operation cabinet 25, front door 8 is that can open the door, specific embodiment are as follows: operation is fixedly mounted on 25 top plate edge of cabinet
Have at least three rotating seats 19, rotating seat 19 is evenly distributed along operation 25 top plate length of cabinet, rotating seat 19 include pedestal and with
The hinged rotating part of pedestal, rotating part can be rotated around its articulated shaft, and the top sides at front door 8 integrally molded are connected with connection along upper
Portion 18, interconnecting piece 18 are fixedly connected with rotating part, and the left and right sides at front door 8 is integrally molded or screw is fixedly connected with pneumatically
Spring base, pneumatic bomb spring abutment are hingedly connected with pneumatic spring, and the other end of pneumatic spring and the articulated connection of operation cabinet 25 and
It is connected with Pneumatic power device, when needing to open front door 8, Pneumatic power device provides power, pneumatic spring to pneumatic spring
Movement, front door 8 is opened until suitable position, stops providing power to pneumatic spring at this time, pneumatic spring automatically latches to the position
It sets.
The bottom of exposure chamber 25a is provided with waste liquid tank 15, for collecting the waste liquid after cleaning exposure chamber 25a.Meanwhile being
The edge without dead angle, in exposure chamber 25a is cleaned more thoroughly in guarantee cleaning process is set as fillet.
It should be further noted that powered air-purifying device, exhaust-air filter and fan assembly, exposure chamber 25a, cabin
When 10a passes through pipeline connection, link position is respectively provided with seal washer and is sealed, and gas is avoided to leak, while installing on pipeline
Butterfly valve 3, the convenient regulation and control to gas circulating flow.
Front door 8, back door 9, the first hermatic door 11 and 14 surrounding edge of revolving door are respectively provided with groove (not representing in figure), recessed
Setting Pneumatic sealing ring (being to represent in figure) is sealed in slot.
Three-grade biological safety cabinet of the present invention is also equipped with support base on operation cabinet 25, fixes on support base
Computer display screen 20 is installed, it is convenient that experimental data is observed；It is provided with light fixture 21 at the top of back door 9, mainly exists
Connection lampshade is welded and fixed in back door 9 or operation 25 top plate edge of cabinet, and installation headlamp is illuminated in lampshade, so that real
Headlamp can be opened when carrying out in the dark by, which testing, is operated.
It, can be to filter device compared with prior art, the present invention differential pressure indicator is arranged and using the enterprising upper mode out of gas
It is hunted leak and is examined, find to replace in time the problem of filter device in time, air-tightness is good in experimentation, can effectively prevent
Harmful substance formed in experimentation is diffused into experimental place, prevents from causing dirt to test site itself and surrounding enviroment
Dye, and guarantee the personal safety of staff.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, made any improvements and modifications also should be regarded as protection of the invention
Range.
Claims (10)
1. a kind of three-grade biological safety cabinet, including fan assembly, operation cabinet and filter assemblies, the operation cabinet include exposure
Chamber, the filter assemblies include powered air-purifying device and exhaust-air filter, it is characterized in that: the powered air-purifying device and described
Exhaust-air filter is fixedly mounted on the top of the operation cabinet, and the powered air-purifying device and air draft filtering dress
It sets and equal is connected to the exposed chamber；
The powered air-purifying device and the exhaust-air filter, which correspond, is connected with differential pressure indicator, the fixed peace of the differential pressure indicator
Mounted in the operation top of the box；
The differential pressure indicator is configured to examine the pressure difference of the powered air-purifying device and the exhaust-air filter.
2. three-grade biological safety cabinet according to claim 1, it is characterized in that: the fan assembly includes breeze fan and row
Wind blower；
The breeze fan and the powered air-purifying device pass through pipeline connection；
The exhaust fan and the exhaust-air filter pass through pipeline connection；
The exhaust-air filter includes second level exhaust-air filter and level-one exhaust-air filter, the second level air draft filtering dress
It sets and is connected with the level-one exhaust-air filter；
The second level exhaust-air filter is connected to the exhaust fan；
The level-one exhaust-air filter is connected to the exposed chamber.
3. three-grade biological safety cabinet according to claim 2, it is characterized in that: the operation cabinet includes left plate and right panel,
Transferring cabin is installed on the left plate and/or right panel；
The transferring cabin includes cabin, transferring cabin import and transferring cabin outlet, and the cabin is in the transferring cabin exit and institute
State exposed chamber connection；
The transferring cabin entrance and the transferring cabin exit are mounted on sealing door component, for complete the transferring cabin into
The closure or unlatching of mouth and transferring cabin outlet；
The transferring cabin is connected with cabin filter device, and the cabin filter device is connected to by pipeline with the cabin, described
Cabin filter device is connect with the exhaust fan；
The cabin is connected to the level-one exhaust-air filter.
4. three-grade biological safety cabinet according to claim 3, it is characterized in that: the sealing door component includes the first hermatic door
Component and the second sealing door component；
The first sealing door component is mounted on the transferring cabin entrance；
The second sealing door component is mounted on the transferring cabin exit；
The second sealing door component includes that flexible power device and reinforcing rod, the flexible power device and the reinforcing rod are equal
It is hingedly mounted on left plate and/or the right panel of the operation cabinet；
The reinforcing rod is fixedly connected with revolving door towards the transferring cabin side, and the revolving door exports phase with the transferring cabin
Cooperation；
The revolving door and the flexible power device are hinged；
The flexible power plant configurations are rotated at the drive reinforcing rod and the revolving door；
The revolving door is configured to be closed or open the transferring cabin outlet.
5. three-grade biological safety cabinet according to claim 4, it is characterized in that: the flexible power device includes electronic pushes away
Bar, the electric pushrod are connected with the power distribution cabinet for controlling the electric pushrod movement.
6. three-grade biological safety cabinet according to claim 3, it is characterized in that: being fixedly installed with track groups in the cabin
Part, vertically the transferring cabin import and the transferring cabin export direction extend the rail assembly；
Supporting plate is fixedly installed on the rail assembly；
The rail assembly is configured to that the supporting plate is driven to slide along the rail assembly extending direction；
The supporting plate is configured to support and carries experimental facilities in the cabin along rail assembly extending direction sliding.
7. three-grade biological safety cabinet according to claim 6, it is characterized in that: the slide track component includes being fixedly mounted respectively
Support in the cabin or so two side walls, sliding slot is fixedly installed on the support, and the both ends difference of the supporting plate is embedding
Enter into the sliding slot on side wall at left and right sides of the cabin.
8. three-grade biological safety cabinet according to claim 1, it is characterized in that: the operation cabinet in the left plate and/or
The adjacent two sides of right panel are separately installed with front door and back door；
Interconnecting piece is installed on one edge at the front door and/or the back door, be equipped on the operation cabinet with it is described
The rotating seat that interconnecting piece matches, the interconnecting piece are connect with the rotating seat；
The front door and/or the back door are configured to rotate around edge where the interconnecting piece；
The front door and/or the back door are hingedly connected with pneumatic spring, are hingedly equipped with pneumatic spring on the operation cabinet
Seat, the pneumatic spring are hingedly connected on the pneumatic bomb spring abutment；
The pneumatic spring is connect with the Pneumatic power device for controlling the pneumatic spring movement；
The pneumatic spring is configured to that the front door and/or the back door is driven to rotate the opening and closing of fault for completing exposure chamber.
9. three-grade biological safety cabinet according to claim 8, it is characterized in that: the interconnecting piece is multiple, multiple companies
The evenly distributed top sides edge for being mounted on the front door and/or the back door of socket part；
The pneumatic spring is set as two, and two pneumatic springs are symmetrically mounted on the front door and/or the back door
The left and right sides.
10. three-grade biological safety cabinet according to claim 1, it is characterized in that: the bottom of the exposed chamber is provided with waste liquid
Slot；
The waste liquid tank is configured to collect the intracavitary waste liquid of the exposure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045532.7A CN109718871A (en) | 2017-10-31 | 2017-10-31 | Three-grade biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711045532.7A CN109718871A (en) | 2017-10-31 | 2017-10-31 | Three-grade biological safety cabinet |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115254207A (en) * | 2022-09-05 | 2022-11-01 | 北京慧荣和科技有限公司 | Vehicle-mounted three-level biosafety cabinet and transport vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115254207A (en) * | 2022-09-05 | 2022-11-01 | 北京慧荣和科技有限公司 | Vehicle-mounted three-level biosafety cabinet and transport vehicle |
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