CN207655155U - A kind of biologic cleanliness safety cabinet - Google Patents
A kind of biologic cleanliness safety cabinet Download PDFInfo
- Publication number
- CN207655155U CN207655155U CN201721603766.4U CN201721603766U CN207655155U CN 207655155 U CN207655155 U CN 207655155U CN 201721603766 U CN201721603766 U CN 201721603766U CN 207655155 U CN207655155 U CN 207655155U
- Authority
- CN
- China
- Prior art keywords
- area
- safety cabinet
- blowdown
- blowdown area
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Ventilation (AREA)
Abstract
The utility model discloses a kind of biologic cleanliness safety cabinets, belong to building decoration area, be intended to provide it is a kind of can to the polluted gas in blowdown area carry out pre-absorption, so as to mitigate the live load of HEPA filters, improve the biologic cleanliness safety cabinet of polluted gas treatment effeciency, it is characterized in that, a kind of biologic cleanliness safety cabinet, including cabinet body, blowdown area and workspace are equipped in the cabinet body, air intake blower fan is equipped in the blowdown area, it is connected with exhaust duct on the upside of the blowdown area, filtration system is equipped in the blowdown area, the filtration system includes storage cistern, spray nozzle, water pump and the circulating water pipe being connect with water pump；Described circulating water pipe one end extends in storage cistern, and the other end extends to the upside in blowdown area, and the side far from storage cistern in circulating water pipe is arranged in the spray nozzle.
Description
Technical field
The utility model is related to a kind of laboratory cleaning apparatus, more particularly to a kind of biologic cleanliness safety cabinet.
Background technology
Biologic cleanliness safety cabinet is a kind of air cleaning facility providing dustless, the sterile working environment in part, and can be by work
Making area, contaminated air artificially controls discharge by special filtration channel, avoids causing damages to human and environment, is
A kind of safe microorganism special bio sanitary safe cabinet, is also widely applied to biology laboratory, health care, bio-pharmaceuticals
Etc. relevant industries protect the health of operator to improving process conditions, improve product quality and yield rate have it is good
Effect.
Biohazard Safety Equipment can be divided into level-one, two level and three-level three categories and be required with meeting different biological studies and epidemic prevention.
Level-one Biohazard Safety Equipment can protect staff and environment without protecting sample.Air flow principle is as laboratory fume hood, no
It is that exhaust outlet is equipped with HEPA filters with place.Two stage biological safety cabinet is according to inlet air flow wind speed, exhaust mode and follows
Ring mode can be divided into 4 different models：A1 types, A2 types, B1 and B2 types, all two stage biological safety cabinets can all provide work
The protection of personnel, environment and sample.
As shown in Figure of description 6, two level A1 type Biohazard Safety Equipments in the prior art, air intake blower fan 331 by room sky
In opening sucking blowdown area 3 of the gas through workspace 2, and enter the air inlet grid 221 of front, workspace 2 opening to
Interior air-flow velocity is not less than 0.38m/s, so that 2 opening of workspace is formed an air curtain so that pollution aerosol is not easy
It escapes outward from opening, through blowing, 231 filtered clean gas flow of HEPA filters passes vertically downwards through workspace 2, and leads to
Front and back two groups of air inlet grids 221 discharge of lower section is crossed, the aerosol formed on 22 table top of workbench is at once by downward cleaning
Air-flow is taken away, and fully protects given the test agent, and the air of pollution arrives after being drawn into air intake blower fan 331 into circulation air path area 33
Up to the top of cabinet body 1, and between air-supply HEPA filters 231 and exhaust duct 4, about 70% gas passes through HEPA mistakes of blowing
Filter 231 participates in recycling, and remaining 30% air through exhaust duct 4 be discharged cabinet body 1 it is outer and by other cleaning equipments into
Row processing.
Above-mentioned this two level A1 type Biohazard Safety Equipments, since the polluted gas 70% generated in workspace still participates in cycle, and
It is only filtered by HEPA filters in blowdown area, this adds increased the live loads of HEPA filters, for a long time can
Its filter effect is reduced, so that the gas for participating in cycle drains into workspace again due to can not be by timely processing.
Utility model content
The purpose of this utility model is to provide a kind of biologic cleanliness safety cabinet, and having can be to the polluted gas in blowdown area
Pre-absorption is carried out, so as to mitigate the live load of HEPA filters, improves the effect of polluted gas treatment effeciency.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of biologic cleanliness safety cabinet, including cabinet body, are equipped with blowdown area and workspace in the cabinet body, in the blowdown area
Equipped with air intake blower fan, it is connected with exhaust duct on the upside of the blowdown area, filtration system is equipped in the blowdown area；
The filtration system includes storage cistern, spray nozzle, water pump and the circulating water pipe being connect with water pump；
The storage cistern, water pump may be contained within the bottom in blowdown area, and described circulating water pipe one end extends in storage cistern, separately
One end extends to the upside in blowdown area, and the side far from storage cistern in circulating water pipe is arranged in the spray nozzle.
By using above-mentioned technical proposal, the polluted gas being discharged in workspace is pumped into through air intake blower fan to blowdown area
Afterwards, it can be absorbed after the liquid that the pollution such as aerosol contained in polluted gas particle is sprayed through spray nozzle, absorption processing
Gas afterwards participates in the cycle of entire filtration system again.It is absorbed since gas has first passed through filtration system before participating in recycling
Processing, therefore the live load of HEPA filters can be mitigated, improve the purification efficiency of polluted gas so that gas is passing through work
Make cleaner when area.
Further, flase floor is fixedly installed in the blowdown area, the flase floor is equipped with several filter assemblies；
The filter assemblies include connection ring and several sectors, and the sector is arranged up and down the two of connection ring
Side and circumferencial direction array along connection ring, the sector of both sides is mutually staggered above and below the connection ring.
By using above-mentioned technical proposal, liquid film can be formed between sector after spray nozzle sprays, liquid film can be with dirt
It contaminates gas and carries out fully gas-liquid exchange, so as to more fully be absorbed to polluted gas.
Further, it is equipped with pressing plate positioned at the upper surface of the filter assemblies in the blowdown area, the pressing plate is equipped with
Several flowing holes.
By using above-mentioned technical proposal, when gas-liquid load is larger or when load fluctuation is larger in blowdown area, filter assemblies
Between can occur to float or mutually hit, pressing plate can limit being mutually shifted for filter assemblies so that filter assemblies are not easy because touching
It hits and is damaged and influences it and absorb the efficiency of polluted gas.
Further, swirl-flow devices, the swirl-flow devices packet are equipped in the blowdown area between pressing plate and spray nozzle
Include center of circle disk, swirl vane and circle ring rack；
The swirl vane is obliquely installed, and one end of the swirl vane is fixedly connected with center of circle disk and along the circle of center of circle disk
The other end of circumferential direction array, the swirl vane is fixedly connected with circle ring rack.
By using above-mentioned technical proposal, polluted gas is sent out upwards by air intake blower fan, since the guiding of swirl vane is made
With and make polluted gas rotation rise, formed vortex so that with spray nozzle spray absorbent solution carry out gas-liquid contact when generation
The comprehensive effects such as collision, attachment, cohesion, centrifugation, so that polluted gas can more efficiently be absorbed.
Further, the section of the spray nozzle is tapered and helically structure.
By using above-mentioned technical proposal, the tapered helical structure of spray nozzle can make the absorbent solution of ejection reach fine and closely woven
Uniform atomizing effect, while the spray port of itself being made to be not easy to block.
Further, air filter plate is equipped at the air outlet of the air intake blower fan.
By using above-mentioned technical proposal, air filter plate can carry out air in advance when air intake blower fan is blown
Filtering, so as to mitigate the live load of filtration system in blowdown area.
Further, the air filter plate is in corrugated core.
By using above-mentioned technical proposal, corrugated core enhances the intensity of air filter plate, at the same can also increase its with
The contact area of air, so that the filter effect of air filter plate is more excellent.
Further, the air inlet is additionally provided with drying layer, and the drying layer is made of anhydrous calcium chloride.
By using above-mentioned technical proposal, anhydrous calcium chloride is neutral drier so that is passed through by the gas of filtration treatment
It enters back into workspace and blowdown area and is recycled after drying layer drying.
In conclusion the utility model has the advantages that：
1. by the setting of filtration system, can absorption processing be carried out to entering the recyclegas in blowdown area in advance, made
Obtaining gas can be cleaner when draining into workspace；
2. by the setting of filter assemblies, the setting of sector can make between every sector on filter assemblies
Liquid film is formed, liquid film can carry out sufficient gas-liquid contact with gas, have the function that further to absorb polluted gas；
3. by the setting of swirl-flow devices, polluted gas warp can be made to form vortex later, and produced between absorption liquid
The comprehensive effects such as raw collision, attachment, centrifugation, further absorb the pollution particle contained in polluted gas.
Description of the drawings
Fig. 1 is in the present embodiment for embodying the structural schematic diagram inside cabinet body；
Fig. 2 is the structural schematic diagram for embodying air intake blower fan in the present embodiment；
Fig. 3 is the portions A enlarged drawing in Fig. 2；
Fig. 4 is the structural schematic diagram for embodying filter assemblies in the present embodiment；
Fig. 5 is the structural schematic diagram for embodying swirl-flow devices in the present embodiment；
Fig. 6 is the structural schematic diagram for being used to embody two level A1 type Biohazard Safety Equipments in the prior art.
In figure, 1, cabinet body；2, workspace；21, elevating glass；22, workbench；221, grid is entered the wind；23, air inlet；
231, HEPA filters；232, drying layer；3, blowdown area；31, partition board；32, wind inlet channel area；33, circulation air path area；331, into
Wind wind turbine；3311, air filter plate；4, exhaust duct；5, filtration system；51, storage cistern；52, water pump；53, circulating water pipe；
54, spray nozzle；55, flase floor；56, filter assemblies；561, connection ring；562, sector；57, swirl-flow devices；571, the center of circle
Disk；572, swirl vane；573, circle ring rack；6, mounting plate.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
Wherein identical parts are presented with like reference characters.It should be noted that word used in the following description
Language "front", "rear", "left", "right", "up" and "down" refer to the direction in attached drawing, word " bottom surface " and " top surface ", "inner" and
"outside" refers respectively to the direction towards or away from geometric center of specific component.
A kind of biologic cleanliness safety cabinet, as shown in Figure 1, including cabinet body 1.Front and rear sides in cabinet body 1 are respectively equipped with work
Make area 2 and blowdown area 3.Workspace 2 includes the elevating glass 21 being mounted on cabinet body 1 and workbench 22, the left and right of workbench 22
Both sides are equipped with air inlet grid 221.
As shown in Figure 1, being equipped with air inlet 23 in the upside of workspace 2, HEPA filters 231 are equipped in air inlet 23.
The partition board 31 being fixedly connected with workbench 22 is equipped in blowdown area 3 positioned at the lower section of workbench 22, partition board 31 separates blowdown area 3
At wind inlet channel area 32 and circulation air path area 33；It is equipped with exhaust duct 4, exhaust duct 4 and circulation air path area in the upside of cabinet body 1
33 connections.
As shown in Figure 1, be equipped with air intake blower fan 331 in the circulation air path area 33, the suction opening of air intake blower fan 331 be connected into
In wind air duct area 32, the air outlet of air intake blower fan 331 is connected in circulation air path area 33；At the air outlet of air intake blower fan 331
It is additionally provided with the air filter plate 3311 in corrugated core (referring to Fig. 3).Corrugated core can not only enhance air filter plate
3311 intensity of itself, while the contact area of itself and gas can also be increased so that its when air intake blower fan 331 is blown,
The effect being filtered in advance to air is more excellent.
As shown in Figure 1, being equipped with filtration system 5 in circulation air path area 33, which includes storage cistern 51, water pump
52, circulating water pipe 53, spray nozzle 54, flase floor 55 and swirl-flow devices 57.Storage cistern 51 is each provided at circulation air path with water pump 52
The bottom in area 33,53 one end of circulating water pipe are connect with water pump 52, and the other end extends upwardly to the upside in circulation air path area 33.Spray
54 array of mouth is arranged in side of the circulating water pipe 53 far from storage cistern 51, and the section of spray nozzle 54 is tapered and helically structure.
The spray nozzle 54 of cone-type spiral structure can make the liquid of ejection reach fine and closely woven uniform atomizing effect, while make the spray of itself
Leaching mouth is not easy to block.
As shown in figs. 1 and 4, flase floor 55 is mounted on the top in cabinet body 1 and positioned at storage cistern 51, is laid on flase floor 55
There are several filter assemblies 56, which is made of connection ring 561 and several sectors 562.Sector 562 is located at
The both sides up and down of connection ring 561 are simultaneously arranged along its circumferencial direction array, and positioned at the sector of about 561 both sides of connection ring
562 are mutually staggered.The pressing plate 58 covered in 56 upper surface of filter assemblies is additionally provided in circulation air path area 33,58 is uniform on pressing plate
It is provided with several flowing holes 581.
As shown in figure 5, there are three swirl-flow devices 57 set, and be arranged in the upper of pressing plate 58 (referring to Fig. 1) by mounting plate 6
Side, swirl-flow devices 57 are made of center of circle disk 571, several swirl vanes 572 and the circle ring rack 573 on mounting plate 6.
Swirl vane 572 is arranged along the circumferencial direction array of center of circle disk 571, swirl vane 572 one end and circle far from center of circle disk 571
The inner wall of ring support 573 is fixedly connected, and every swirl vane 572 tilts identical angle each along same direction.
It, can be to work after air inlet 23 is discharged into workspace 2 due to more moist through 5 filtered gas of filtration system
Given the test agent on platform 22 impacts, therefore, as shown in Figure 1, in air inlet 23 also positioned at the upside of HEPA filters 231
Drying layer 232 made of anhydrous calcium chloride are installed.
Specific implementation process：When air intake blower fan 331 works, the air outside cabinet body 1 can pass through the air inlet of 22 front side of workbench
Grid 221 enters to wind inlet channel area 32, through air filter plate 3311 filtering after again can drain into circulation air path area 33 continue to
Upper flowing.Spray nozzle 54 can spray absorption liquid at this time, can shape between its adjacent sector 562 after filter assemblies 56 are drenched
At liquid film, sufficient gas-liquid contact can be carried out with liquid film when air passes through so that the fine particle adulterated in gas is by liquid
Body absorbs.When gas passes through swirl-flow devices 57, since the guiding role of swirl vane 572 can be such that gas rotating rises, formed
The liquid sprayed again with spray nozzle 54 after vortex carries out gas-liquid contact, and collides, adheres to, agglomerating, centrifuging etc. and integrating
Property effect, to further being absorbed to the fine particle in gas.
It can partly be drained into outside cabinet through exhaust duct 4 through 5 filtered polluted gas of filtration system, and net by other
Change equipment to be handled, remaining is emitted into workspace 2 by drying layer 232 and HEPA filters 231 to workbench 22
Wind inlet channel area 32 can be entered by the air inlet grid 221 of 22 rear side of workbench again by being cleaned the clean gas of this part at this time
The interior entire cycle of participation.Pressing plate 58 on filter assemblies 56 can be effectively prevent because 33 interior air-flow of circulation air path area is unstable, mistake
Lead to damage there is a phenomenon where floating or colliding between filter component 56.
Since spray nozzle 54 is spiral shape, the liquid of absorption can be made to reach uniform fine and closely woven atomizing effect.Absorb pollution
Liquid after gas drops down onto to be recycled in storage cistern 51, according to actual conditions, then regularly replaces the liquid in storage cistern 51
Body.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (8)
1. a kind of biologic cleanliness safety cabinet, including cabinet body (1), the cabinet body (1) is interior to be equipped with blowdown area (3) and workspace (2), institute
The upside for stating workspace (2) is equipped with air inlet (23), and air inlet grid (221), the blowdown area are equipped in the workspace (2)
(3) it is equipped with air intake blower fan (331) in, exhaust duct (4) is connected on the upside of the blowdown area (3), it is characterized in that：The blowdown
Filtration system (5) is equipped in area (3)；
The filtration system (5) includes storage cistern (51), spray nozzle (54), water pump (52) and the cycle being connect with water pump (52)
Water pipe (53)；
The storage cistern (51), water pump (52) may be contained within the bottom of blowdown area (3), and described circulating water pipe (53) one end extends to
In storage cistern (51), the other end extends to the upside of blowdown area (3), and spray nozzle (54) setting is separate in circulating water pipe (53)
The side of storage cistern (51).
2. a kind of biologic cleanliness safety cabinet according to claim 1, it is characterized in that：Fixed setting in the blowdown area (3)
There are flase floor (55), the flase floor (55) to be equipped with several filter assemblies (56)；
The filter assemblies (56) include connection ring (561) and several sectors (562), sector (562) setting
In the both sides up and down of connection ring (561) and along the circumferencial direction array of connection ring (561), it is located in the connection ring (561)
The sector (562) of lower both sides is mutually staggered.
3. a kind of biologic cleanliness safety cabinet according to claim 2, it is characterized in that：It is located in the blowdown area (3) described
The upper surface of filter assemblies (56) is equipped with pressing plate (58), and the pressing plate (58) is equipped with several flowing holes (581).
4. a kind of biologic cleanliness safety cabinet according to claim 3, it is characterized in that：It is located at pressing plate in the blowdown area (3)
(58) swirl-flow devices (57) are equipped between spray nozzle (54), the swirl-flow devices (57) include center of circle disk (571), swirl vane
(572) and circle ring rack (573)；
The swirl vane (572) is obliquely installed, and one end of the swirl vane (572) is fixedly connected simultaneously with center of circle disk (571)
Along the circumferencial direction array of center of circle disk (571), the other end of the swirl vane (572) is fixedly connected with circle ring rack (573).
5. a kind of biologic cleanliness safety cabinet according to claim 1, it is characterized in that：The section of the spray nozzle (54) is in cone
Shape and helically structure.
6. a kind of biologic cleanliness safety cabinet according to claim 1, it is characterized in that：The outlet air of the air intake blower fan (331)
Air filter plate (3311) is equipped at mouthful.
7. a kind of biologic cleanliness safety cabinet according to claim 6, it is characterized in that：The air filter plate (3311) is in watt
Stupefied shape structure.
8. a kind of biologic cleanliness safety cabinet according to claim 1, it is characterized in that：It is additionally provided at the air inlet (23) dry
Dry layer (232), the drying layer (232) are made of anhydrous calcium chloride material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721603766.4U CN207655155U (en) | 2017-11-24 | 2017-11-24 | A kind of biologic cleanliness safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721603766.4U CN207655155U (en) | 2017-11-24 | 2017-11-24 | A kind of biologic cleanliness safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207655155U true CN207655155U (en) | 2018-07-27 |
Family
ID=62946486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721603766.4U Expired - Fee Related CN207655155U (en) | 2017-11-24 | 2017-11-24 | A kind of biologic cleanliness safety cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207655155U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195636A (en) * | 2020-01-10 | 2020-05-26 | 上海瑞仰净化装备有限公司 | Secondary biological safety cabinet for omnibearing sample protection |
| CN114453036A (en) * | 2022-01-26 | 2022-05-10 | 广州市华粤行医疗科技有限公司 | Air duct system of workstation, workstation and method |
-
2017
- 2017-11-24 CN CN201721603766.4U patent/CN207655155U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111195636A (en) * | 2020-01-10 | 2020-05-26 | 上海瑞仰净化装备有限公司 | Secondary biological safety cabinet for omnibearing sample protection |
| CN114453036A (en) * | 2022-01-26 | 2022-05-10 | 广州市华粤行医疗科技有限公司 | Air duct system of workstation, workstation and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104174236B (en) | The air cleaner of paint locker and carpentry yard | |
| CN103055639B (en) | With the air cleaner of dual self-cleaning device | |
| CN108479348A (en) | A kind of novel environment friendly emission-control equipment | |
| CN204134434U (en) | A kind of large ash quantity lacquer spraying waste gas treating apparatus | |
| KR101609512B1 (en) | Wet Scrubber | |
| CN106552473A (en) | A kind of filter | |
| CN207655155U (en) | A kind of biologic cleanliness safety cabinet | |
| CN106390631A (en) | Dust filter | |
| CN103505969A (en) | Waste gas and dust treating device | |
| CN105032668A (en) | Side draught type water-free spraying system | |
| CN107875794A (en) | Industrial tail gas flue dust and formaldehyde comprehensive treatment system and technique | |
| CN204817027U (en) | Anhydrous paint finishing of formula is inhaled to side | |
| CN207024975U (en) | A kind of paint mist treatment system | |
| CN106731374A (en) | A kind of air filtering method | |
| WO2020125571A1 (en) | Vertical rotary dust remover | |
| CN104289058A (en) | Air filter | |
| CN206276133U (en) | A kind of filter | |
| CN104249047A (en) | Novel odorless pain room | |
| CN110420519A (en) | A kind of novel fluidized bed cooking fume control equipment | |
| CN105561712A (en) | Purification and dust collection device | |
| CN106474831A (en) | A kind of dust-filtering method | |
| CN205867984U (en) | Flue gas minimum discharge absorption tower device | |
| CN206104221U (en) | Two air inlet water rotating formula cascade cabinets | |
| CN206343039U (en) | A kind of paint line tail gas, exhaust gas purification and treatment device | |
| CN204234252U (en) | A kind of paint locker structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180727 Termination date: 20201124 |