CN207872191U - A kind of bio-safety experiment cabinet - Google Patents
A kind of bio-safety experiment cabinet Download PDFInfo
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- CN207872191U CN207872191U CN201820014868.0U CN201820014868U CN207872191U CN 207872191 U CN207872191 U CN 207872191U CN 201820014868 U CN201820014868 U CN 201820014868U CN 207872191 U CN207872191 U CN 207872191U
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Abstract
Provide a kind of bio-safety experiment cabinet, including initial filtrator, cabinet, the first wind turbine, diffusing cover, the first high efficiency particulate air filter, work station, safety cabinet, the second wind turbine and exhaust-air filter, the wherein described cabinet has closed cavity, it is provided with front window gathering hole, front window air inlet, and gas access and gas vent, and limit a workspace；First assembling can blow on the top of the bio-safety experiment cabinet to the workspace；First high efficiency particulate air filter is filtered the down current for entering the workspace, with the safe operation of Protection process；Second assembling can drain the gas flowed through in the workspace in the lower part of the bio-safety experiment cabinet；The exhaust-air filter can carry out purified treatment to the air-flow that bio-safety experiment cabinet is drained, and ensure ambient enviroment safety.
Description
Technical field
The present invention relates to a kind of new bio safety experiment cabinets, and the bio-safety for being especially used for the progress in laboratory is real
Test the security protection cabinet of operation.
Background technology
Biohazard Safety Equipment (Biological Safety Cabinet, BSC) is in operation or inspection with infective
Experiment on Microbiology avoids exposure to above-mentioned for protection staff, the sample of laboratory environment and extraneous natural environment, experiment
Issuable aerosol is designed with substance is splashed out in operating process.In operating liquid or semifluid, such as：It shakes, stir
Mix, pour into or liquid be added drop-wise on the surface of solids of container or when another liquid, be likely to generate have it is infective
Aerosol.The reason is that naked eyes can not see that diameter is less than 5 μm of aerosol, a diameter of 5~100 μm of fine droplet, so real
It tests room staff and is not typically observed this level of particles generation, it is possible to sucking cross contamination workbench in testing
The other materials in face.Published by WHO《Laboratory biosafety handbook》In clearly state：" Biohazard Safety Equipment can effectively reduce
Laboratory infection and culture cross contamination, Biohazard Safety Equipment caused by being exposed due to aerosol can also protect work simultaneously
Environment ".
China's Biohazard Safety Equipment is divided into three-level, I grade of Biohazard Safety Equipment, II grade of Biohazard Safety Equipment, III grade of bio-safety at present
Cabinet.
It is II grade of B2 A2 type Biohazard Safety Equipment that Biohazard Safety Equipment is widely used in the prior art.Pacified using this kind of biology
There is certain requirement for environment for full cabinet is current, than if you need to be operated in the laboratory with purification, or in hospital
Computerizing management operates, and the safety cabinet that some hospitals use is operated in common environment, and background environment is very poor, even if logical
Wind also cannot get the coming year better air draft.Considerably increase the risk of medical staff's infection.As shown in Figure 1A, A2 types are biological at present
Safety cabinet is that there are one independent wind turbines for tool, and the trend of air-flow is front window sucking wind, and wind is discharged on top, 30% stream of row outside 70%
Enter.As shown in Figure 1B, B2 types are that the connecting pipe that exhaust fan is connected on top layer filter port more than A2 type is passed through
The discharge of wind that outer row's independence wind turbine discharges it is 100% to arrange entirely.Toilet is all air-supply at present upper, and air draft is in downside
Mounting means.B2 can solve that pollutant outdoor can be discharged to by filter in air draft.But when using installation
It is to have necessarily required, for example exhaust fan needs to be placed in the space that space and interlayer cannot be too high, if empty
Between it is long or too short, will influence safety cabinet air inlet go out to suck wind decrease, cause personnel pollution or product experiment hand over
Fork pollution.And A2 type safety cabinets, it is but not suitable in the chemotherapeutic use of hospital, because it, which is 70% outer air draft, passes through top layer mistake
Filter is drained into interior, if interior is negative pressure at lower air draft, pollutant is after the filter from top layer again under
Trip discharge is, in case of leaking, also to have the possibility for the personnel of polluteing there are one air-flow process from top to bottom.
Utility model content
For the drawbacks described above of the prior art, the purpose of this utility model is to provide a kind of new bio safety experiments
Cabinet is to be run in cabinet by two independent wind turbines when being tested, in operation, considerably increases safety and stability, and
And air-flow trend is that mode from top to bottom filters, more ensure that the safety of personnel and trial target with it is accurate.
The technical solution of the utility model is as follows.
A kind of bio-safety experiment cabinet, including initial filtrator, cabinet, the first fan operation device, diffusing cover, first are efficiently
Filter, the second fan operation device and exhaust-air filter, wherein：
The cabinet has closed cavity, and it is gentle to be provided with front window gathering hole, front window air inlet and gas access
Body exports, and limits a workspace；
First assembling can blow on the top of the bio-safety experiment cabinet to the workspace；
First high efficiency particulate air filter is filtered the down current for entering the workspace, with Protection process
Safe operation；
Second assembling can drain and be flowed through in the workspace in the lower part of the bio-safety experiment cabinet
Gas；
The exhaust-air filter includes the second high efficiency particulate air filter, and second high efficiency particulate air filter is located at below the cabinet
Both sides can carry out purified treatment to the air-flow that bio-safety experiment cabinet is drained, ensure ambient enviroment safety.
Further, the initial filtrator is made of multistage filtering unit, between the multistage filtering unit removably
Connection, and can be increased and decreased according to use environment background and be matched.
Further, first wind turbine comes from main regulation rotating speed by relative pressure, full with safeguard work station air-supply air-flow
The combination of the multistage filtering unit of the foot initial filtrator and resistance variation during use.
Further, the diffusing cover includes uniform orifice plate.
Further, metal isolation net is installed under first high efficiency particulate air filter.
Further, include operation console in the cavity, and the operation console has trepanning, to maintain and the external world
Relative static pressure is poor.
Further, second wind turbine drains the gas flowed through in work station in time and cavity maintains static pressure difference
Core drive.Wind turbine can ensure the safety during operation by relative pressure from main regulation rotating speed.
Further, the exhaust-air filter further includes active carbon filter screen.
Further, the bio-safety experiment cabinet is the form for above sending lower row.
Further, the bio-safety experiment cabinet, which is characterized in that the bio-safety experiment cabinet is in starting up
Second wind turbine startup more preferential than the first wind turbine in the process, the second wind turbine ensures wind than the first wind turbine time-delay closing in shutdown process
Machine linkage function.
Description of the drawings
Figure 1A is the A2 type bio-safety experiment cabinet structural schematic diagrams of the prior art.
Figure 1B is the B2 type bio-safety experiment cabinet structural schematic diagrams of the prior art.
Fig. 2 is the bio-safety experiment cabinet structural schematic diagram of the utility model.
The meaning of each reference numeral is as follows in figure：
+ zone of positive pressure；Negative pressuren zone；1. initial filtrator；2. breeze fan；3. diffusing cover；4. the first high efficiency particulate air filter；5. chamber
Body；6. exhaust fan；7. exhaust-air filter.
Specific implementation mode
Shown in Fig. 2 is bio-safety experiment cabinet according to the present utility model, including：
A kind of bio-safety experiment cabinet, including cabinet, initial filtrator 1, breeze fan 2, diffusing cover 3, the first high efficiency filter
Device 4, exhaust fan 6 and exhaust-air filter 7.
The cabinet have closed cavity 5, be provided with front window gathering hole, front window air inlet and gas access and
Gas vent, and limit a workspace.
Breeze fan 2 is mounted on bio-safety experiment cabinet top, can blow to workspace.
First high efficiency particulate air filter 4 is filtered the down current for entering bio-safety experiment cabinet workspace,
With the safe operation of Protection process.
The second fan operation device is mounted on the lower part of the bio-safety experiment cabinet, can drain the workspace
The gas inside flowed through.
Further, the initial filtrator 1 is made of multistage filtering unit, between the multistage filtering unit removably
Connection, and can be increased and decreased according to use environment background and be matched.
Further, the breeze fan 2 by relative pressure come from main regulation rotating speed, with safeguard work station blow air-flow,
Meet the multistage filtering unit of the initial filtrator combination and during use resistance variation.
Further, the diffusing cover 3 includes uniform orifice plate.
Further, metal isolation net is installed under first high efficiency particulate air filter 4.
Further, include operation console in the workspace of the cavity 5, and the operation console has trepanning, with dimension
It is poor with extraneous relative static pressure to hold.
Further, the exhaust fan 6 drains the gas flowed through in workspace in time and cavity maintains static pressure difference
Core drive.Exhaust fan 6 can ensure the safety during operation by relative pressure from main regulation rotating speed.
Although it will be appreciated by those skilled in the art that in the present embodiment not the structure to exhaust fan 6 and volume do into
One step limits, but the volume of the wind turbine should not be too large, and when being operated before personnel are sitting in safety cabinet, exhaust fan 6 it is big
The small stretching, extension that do not interfere legs and feet.
Further, the exhaust-air filter 7 includes the second high efficiency particulate air filter, can be purified through stream all in work station
Through gas, ensure the safety of station external environment.
Further, the bio-safety experiment cabinet is the form for above sending lower row.
Further, the bio-safety experiment cabinet second wind turbine during starting up is preferentially opened than the first wind turbine
Dynamic, the second wind turbine ensures fan linkage function than the first wind turbine time-delay closing in shutdown process.
In a preferred embodiment, the down current of the cabinet of bio-safety experiment cabinet according to the present utility model
Flow velocity is entered the air-flow of safety cabinet above safety cabinet by high efficiency particulate air filter.Flow velocity nominal value is 0.30m/s.
In a preferred embodiment, the inflow stream of the cabinet of bio-safety experiment cabinet according to the present utility model
It is the wind turbine air draft by lower section, the air-flow of safety cabinet is entered from safety cabinet front window gathering hole.Flow velocity nominal value is 0.50m/s.
Bio-safety experiment cabinet according to the present utility model is equipped with multiple spot air inlet hole in front window air inlet.
In a preferred embodiment, bio-safety experiment cabinet according to the present utility model is arranged in exhaust fan 6 in cabinet
Below body, exhaust-air filter 7 sets the both sides for the holder for being located at bio-safety experiment cabinet there are two the second high efficiency particulate air filter, generally
When mounted, can safety cabinet as the exhaust outlet of negative-pressure experimental laboratory at.And it is further preferred that in two the second efficient mistakes
Add layer of active carbon strainer except filter again.
It will be appreciated by those skilled in the art that the mainly bio-safety experiment cabinet of the utility model described above with
The different Partial Feature of the prior art.The bio-safety experiment cabinet of the utility model is not limited thereto, and can also be had existing
Any applicable other technical characteristics in technology, technical characteristic such as identical with II grade of Type B Biohazard Safety Equipment.
Claims (10)
1. a kind of bio-safety experiment cabinet, including initial filtrator, cabinet, the first wind turbine, diffusing cover, the first high efficiency particulate air filter,
Two wind turbines and exhaust-air filter, it is characterised in that：
The cabinet has closed cavity, is provided with front window gathering hole, front window air inlet and gas access and gas goes out
Mouthful, and limit a workspace；
First assembling can blow on the top of the bio-safety experiment cabinet to the workspace；
First high efficiency particulate air filter is filtered the down current for entering the workspace, with the operation of Protection process
Safety；
Second assembling can drain the gas flowed through in the workspace in the lower part of the bio-safety experiment cabinet
Body；
The exhaust-air filter includes the second high efficiency particulate air filter, and second high efficiency particulate air filter is located at two below the cabinet
Side can carry out purified treatment to the air-flow that bio-safety experiment cabinet is drained, ensure ambient enviroment safety.
2. bio-safety experiment cabinet according to claim 1, which is characterized in that the initial filtrator is by multistage filtering unit
It forms, it is detachably connected between the multistage filtering unit, and can be increased and decreased according to use environment background and be matched.
3. bio-safety experiment cabinet according to claim 2, which is characterized in that first wind turbine according to relative pressure come
The combination and use of the multistage filtering unit of the initial filtrator are met with safeguard work area air-supply air-flow from main regulation rotating speed
The resistance of period changes.
4. bio-safety experiment cabinet according to claim 1, which is characterized in that the diffusing cover includes uniform orifice plate.
5. bio-safety experiment cabinet according to claim 1, which is characterized in that be equipped under first high efficiency particulate air filter
Metal isolation net.
6. bio-safety experiment cabinet according to claim 1, which is characterized in that include operation console in the cavity, and
The operation console has trepanning, to remain poor with extraneous relative static pressure.
7. bio-safety experiment cabinet according to claim 6, which is characterized in that second wind turbine can drain work in time
The gas flowed through in standing is also capable of providing the power that cavity maintains static pressure difference；Second wind turbine can be according to relative pressure
Come the safety for adjusting rotating speed to ensure during operation.
8. bio-safety experiment cabinet according to claim 1, which is characterized in that the exhaust-air filter further includes activated carbon
Strainer.
9. bio-safety experiment cabinet according to claim 1, which is characterized in that the bio-safety experiment cabinet is above to send down
The form of row.
10. bio-safety experiment cabinet according to claim 1, which is characterized in that the bio-safety experiment cabinet is being switched on
Second wind turbine startup more preferential than the first wind turbine in start-up course, in shutdown process the second wind turbine than the first wind turbine time-delay closing,
Ensure fan linkage function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820014868.0U CN207872191U (en) | 2018-01-05 | 2018-01-05 | A kind of bio-safety experiment cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820014868.0U CN207872191U (en) | 2018-01-05 | 2018-01-05 | A kind of bio-safety experiment cabinet |
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| Publication Number | Publication Date |
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| CN207872191U true CN207872191U (en) | 2018-09-18 |
Family
ID=63505756
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| CN201820014868.0U Active CN207872191U (en) | 2018-01-05 | 2018-01-05 | A kind of bio-safety experiment cabinet |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024603A (en) * | 2018-10-10 | 2020-04-17 | 中国人民解放军军事科学院军事医学研究院 | Medium-sized bioaerosol sedimentation evaluating cabin |
| CN111334429A (en) * | 2020-03-25 | 2020-06-26 | 北京双诚联盈净化工程技术有限公司 | Modular multifunctional cell workstation |
| CN111772853A (en) * | 2019-04-04 | 2020-10-16 | 上海拜艾斯净化设备有限公司 | Animal safety cabinet |
| CN112535104A (en) * | 2019-09-20 | 2021-03-23 | 上海拜艾斯净化设备有限公司 | Novel animal trade cage cabinet |
| CN112774741A (en) * | 2020-12-21 | 2021-05-11 | 无锡子索生化科技有限公司 | First-level gas-purifying type toxin expelling cabinet |
| CN113070105A (en) * | 2021-05-13 | 2021-07-06 | 南京艾尔普再生医学科技有限公司 | Superclean bench for biological product |
| CN113976189A (en) * | 2021-10-13 | 2022-01-28 | 王提涛 | Ventilation biological safety cabinet |
| CN114768418A (en) * | 2022-04-11 | 2022-07-22 | 西安纳图智能科技有限公司 | Anti-pollution filtering system of biochemical analyzer and control method |
-
2018
- 2018-01-05 CN CN201820014868.0U patent/CN207872191U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024603A (en) * | 2018-10-10 | 2020-04-17 | 中国人民解放军军事科学院军事医学研究院 | Medium-sized bioaerosol sedimentation evaluating cabin |
| CN111772853A (en) * | 2019-04-04 | 2020-10-16 | 上海拜艾斯净化设备有限公司 | Animal safety cabinet |
| CN112535104A (en) * | 2019-09-20 | 2021-03-23 | 上海拜艾斯净化设备有限公司 | Novel animal trade cage cabinet |
| CN111334429A (en) * | 2020-03-25 | 2020-06-26 | 北京双诚联盈净化工程技术有限公司 | Modular multifunctional cell workstation |
| CN112774741A (en) * | 2020-12-21 | 2021-05-11 | 无锡子索生化科技有限公司 | First-level gas-purifying type toxin expelling cabinet |
| CN113070105A (en) * | 2021-05-13 | 2021-07-06 | 南京艾尔普再生医学科技有限公司 | Superclean bench for biological product |
| CN113976189A (en) * | 2021-10-13 | 2022-01-28 | 王提涛 | Ventilation biological safety cabinet |
| CN114768418A (en) * | 2022-04-11 | 2022-07-22 | 西安纳图智能科技有限公司 | Anti-pollution filtering system of biochemical analyzer and control method |
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