CN106268986A - A kind of Biohazard Safety Equipment of security seal - Google Patents
A kind of Biohazard Safety Equipment of security seal Download PDFInfo
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- CN106268986A CN106268986A CN201510259043.6A CN201510259043A CN106268986A CN 106268986 A CN106268986 A CN 106268986A CN 201510259043 A CN201510259043 A CN 201510259043A CN 106268986 A CN106268986 A CN 106268986A
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- safety equipment
- security seal
- biohazard safety
- filter
- blower fan
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Abstract
The invention belongs to biological plant field, particularly relate to the Biohazard Safety Equipment of a kind of security seal, the Biohazard Safety Equipment of this security seal has gathering hole at cabinet wall, the Biohazard Safety Equipment of this security seal also includes filter and blower fan, and be formed in the Biohazard Safety Equipment of this security seal and can within it carry out the working area operated and the filtering area being in malleation, gas outside the Biohazard Safety Equipment of this security seal is via gathering hole, the air inlet of blower fan it is sucked into by air channel, gas in filtering area is provided by the air outlet of blower fan, and be discharged to after filtration outside filtering area, it is in air channel being internally formed by the double-deck utricule of the Biohazard Safety Equipment being positioned at security seal of negative pressure, so that the gas in air channel is isolated with cabinet wall, thus negative pressure surrounds the malleation in filtering area.The Biohazard Safety Equipment of the security seal of the present invention has cost advantage, seals more reliable, it is simple to sterilizes and changes.
Description
Technical field
The invention belongs to biological plant field, particularly relate to the Biohazard Safety Equipment of a kind of security seal.
Background technology
When the Biohazard Safety Equipment of security seal is to have infective experiment material for operation primary culture, bacterium strain and diagnostic specimen etc.; be used for protect operator, laboratory environment and experiment material so that it is during avoiding exposure to aforesaid operations issuable infectivity aerosol and spatters and design.When operating liquid or semifluid, such as, shake, pour into, stir, or liquid is added drop-wise on the surface of solids or time in another kind of liquid, the most likely produce aerosol.To agar plate streak inoculation, with suction pipe inoculating cell culture bottle, use multiple tracks sample injector to transfer to the suspension of infectious reagent to be homogenized in microtest plate, to infectious substance and vortex oscillation, infectious liquid is centrifuged and carries out animal operation time, these laboratory operation all may produce infectious aerosol.Owing to naked eyes cannot see that diameter is less than the aerosol of 5 microns and the fine droplet of a diameter of 5～100 microns, therefore laboratory worker has been normally unaware that this level of granule is generating, and may suck or the other materials of cross-contamination work top.It has been shown that the Biohazard Safety Equipment of proper use of security seal can effectively reduce owing to aerosol exposes the laboratory infection and culture cross-contamination caused.The Biohazard Safety Equipment of security seal also can protect environment simultaneously.
For the Biohazard Safety Equipment of security seal, the sealing of cabinet is particularly important.The first considers to prevent from being caused pathogen propagation by structure gap is excessive.It two is to consider that being designed to available formaldehyde vapor sterilizes under conditions of not dismantling.As already mentioned, the hollow space between operating area inner side wall plate and external wallboard is negative pressure.Owing to cabinet inner space 1 is malleation, if so with the presence of housing breakage and leakage point, outside leakage will be produced.Therefore form negative pressure protection at sidewall and backboard and can effectively reduce the probability of leakage.
The all Biohazard Safety Equipments comprising double-deck security seal being currently known are all as air channel using internal for cabinet all spaces, thus cause gas positive pressure and negative pressure to be full of whole cabinet.And the use of the Biohazard Safety Equipment of security seal requires that air channel is the structure sealed, and is not allow for any leakage, therefore the requirement to whole cabinet is all to seal, and the leakage part of any turning and joint is unacceptable.In order to realize this requirement, it is common that use the panel beating of high intensity as cabinet shell, with any turning of silica gel sealing and joint, thus produce the material of costliness and more production cost.
Summary of the invention
nullIn order to solve above-mentioned technical problem，The invention provides the Biohazard Safety Equipment of a kind of security seal，The Biohazard Safety Equipment of this security seal has gathering hole at cabinet wall，The Biohazard Safety Equipment of this security seal also includes blower fan，And in the Biohazard Safety Equipment of this security seal, be formed with the working area that can within it carry out operating and be formed with filtering area，Gas outside the Biohazard Safety Equipment of this security seal is via gathering hole、The air inlet of this blower fan it is sucked into by air channel，Wherein，This gas is entered inside this filtering area by the air outlet of this blower fan，To form malleation in this filtering area，This gas is discharged to outside this filtering area through filtering，This air channel is internally formed by the double-deck utricule of the Biohazard Safety Equipment being positioned at this security seal，So that the negative-pressure gas in this air channel is isolated with cabinet wall，And make this negative pressure surround the malleation in this filtering area.Particularly, filtering area seals by this bilayer utricule.
Forming additionally, above-mentioned filtering area is surrounded by filter, this blower fan and this bilayer utricule, the gas in this filtering area is filtered by this filter.
Particularly, this filter includes the first filter and the second filter, a part for the gas coming from the air outlet of this blower fan is discharged in the environment outside the Biohazard Safety Equipment of this security seal via the first filter, and another part is discharged in this working area via the second filter.
Additionally, the Biohazard Safety Equipment of this security seal may also include intermediate bulkheads, this filtering area is positioned at above this intermediate bulkheads, and this working area is positioned at below this intermediate bulkheads.Such as, inside the roof of the Biohazard Safety Equipment that the first filter is positioned at security seal, the second filter is arranged in this intermediate bulkheads.
It addition, be provided with the lower clapboard for laying test material in this working area, this lower clapboard forms lower air duct, this lower air duct and the described air channel fluid communication formed by described bilayer vesicles body with the diapire of the Biohazard Safety Equipment of security seal, thus is also at negative pressure.
Another blower fan it is also provided with, to strengthen the suction function in air channel in described lower air duct.On the one hand, the gas of working area enters described lower air duct via the hole on described lower clapboard.On the other hand, the surrounding air being positioned at outside the Biohazard Safety Equipment of security seal enters this lower air duct by this gathering hole and via the hole on this lower clapboard.
Preferably, this bilayer utricule directly wraps at this filter and this blower fan by the way of banding.
Patent of the present invention mainly has the advantages that
The design of patent of the present invention is to use the double-deck utricule of such as flexible material to replace tradition all air channels to form integral air duct, so that the internal region being full of negative pressure of safety cabinet is concentrated among the inside and outside two-layer of this utricule, and the region being full of malleation is concentrated among by utricule and other structure area encompassed such as such as HEPA filtering area and blower fan.
On the one hand, due to the utricule needing the region sealed to be grouped as high concentration from original whole cabinet, safety cabinet external shell is no longer necessary to provide sealing function, and only it is to provide a frame structure, play the effect of fixing envelope type integral air duct, thus significantly reduce the cost of cabinet material and sealing, the most more economical.
On the other hand, this utricule has structure and is easy to customization, and the number of plies is easy to increase, for customizing the characteristic device curve of different structure and sealing reliability.Simultaneously as contaminated region height concentrates in this utricule air channel, the therefore sterilization of Polluted area, even change and also become easier to.
Accompanying drawing explanation
Fig. 1 illustrates the structural representation of the Biohazard Safety Equipment of the security seal according to prior art comprising traditional air chute.
Fig. 2 illustrate according to patent of the present invention using utricule as the structural representation of the Biohazard Safety Equipment of the security seal of integral air duct.
Detailed description of the invention
The Biohazard Safety Equipment of the security seal of patent of the present invention includes cabinet 10, and this cabinet can be such as made up of the such as hard material such as steel or glass, thus meets the requirement of strength that framework supports.Such as, as shown in Figure 2, this cabinet 10 can include left side wall, right side wall, antetheca, rear wall, roof and diapire, but is not limited to this.It should be noted that any noun of locality occurred in this article, as " on ", D score, "left", "right", "front", "rear" be not restrictive, function only as structure and the effect of signal are described.
Generally, in above-mentioned each wall of cabinet, have gathering hole 20, in order to enable air to flow in the Biohazard Safety Equipment of security seal, and in order to experiment material put into safety cabinet by this gathering hole 20 or to take out experiment material from safety cabinet.On the antetheca of the Biohazard Safety Equipment that this gathering hole 20 is preferably located at security seal, the most below, therefore this gathering hole is also referred to as front window gathering hole.As required, antetheca may be designed as at least partially can the door body of push-and-pull up and down, to form gathering hole 20 the most when needed, and close the Biohazard Safety Equipment of this security seal when not needed.It is preferred that the antetheca of cabinet is the most outward-dipping.
Such as, the Biohazard Safety Equipment of this security seal may also include filter 30,40 and blower fan 50.These filters 30,40 can include the material filtering gas, particularly efficient air purifier (HEPA filtering area).Efficient air purifier 30,40 is for filtering the gas coming from blower fan 50.Generally; at least two filter it is provided with in the Biohazard Safety Equipment of security seal; on the one hand make the air in working area reach the cleanliness factor of regulation and be fallen thus the cross-contamination of protection test material by the dangerous particulate filters such as the aerosol produced in sample during test, on the other hand prevent the Biohazard Safety Equipment of security seal to be directly discharged in environment by the dangerous particle in air.In other words, arranging filter in order to ensure outer row with internal down current is all the clean gas flow through filtering.
Different from the prior art described in background technology, the double-deck utricule of the Biohazard Safety Equipment of the security seal of patent of the present invention to replace traditional cabinet inner-tube structure the most on the whole, so that the cabinet of safety cabinet is no longer necessary to provide sealing function.Specifically, it is provided with in the Biohazard Safety Equipment of security seal and is in the filtering area 1 of malleation.Particularly, this filtering area 1 can be formed by a part for filter 30,40, blower fan 50 and double-deck utricule 60.As shown in Figure 2, in some cases, this filtering area 1 is surrounded by a part for two filters, a blower fan 50 and double-deck utricule and forms.As example, with flexible a part for utricule, e.g. internal layer (for external environment condition), the air outlet of each filter 30,40 and blower fan 50 is packed together, so that the air in filtering area 1 is provided by the air outlet of blower fan 50, and the air in filtering area is only capable of being discharged to outside filtering area by filter 30,40.
Additionally, the region between the internal layer 60A and outer layer 60B of the double-deck inside of utricule 60, i.e. utricule is connected with the air inlet of blower fan 50.It is formed at utricule 60 is internally formed negative pressure due to the draft effect of blower fan 50, negative pressure can be made to surround the malleation in filtering area 1.In the text, the air channel of the Biohazard Safety Equipment being internally formed security seal of the utricule 60 of negative pressure it is in.Therefore, it can meet the authentication requesting of the Biohazard Safety Equipment of security seal, i.e. barotropic field needs the characteristic surrounded by negative pressure region.So, when carrying out test operation in the Biohazard Safety Equipment of security seal, the dangerous granule such as the discharged geogas aerosol of test material is due to the down current in working area and the suction function bottom operating space, around not being diffused into or effusion cabinet outer before be just taken directly in negative pressure air channel, pure air after being filtered by high efficiency particulate air filter or in being partially recycled to operating space or outer be discharged in environment.Seen from the above description, in the air inlet of above-mentioned blower fan 50 region between the internal layer 60A and outer layer 60B of utricule 60, and the air outlet of blower fan 50 is positioned at filtering area 1.
In particularly advantageous embodiment, the middle part in the short transverse of this cabinet is provided with intermediate bulkheads 70.This intermediate bulkheads 70 is preferably almost parallel with roof or diapire, and is connected in known manner with left side wall and right side wall.Particularly, at least one filter 30 may be provided on the roof of cabinet, and at least one filter 40 may be provided in intermediate bulkheads 70, and blower fan 50 or its air outlet are positioned at the top of intermediate bulkheads 70.Thus, the region formation above intermediate bulkheads 70 that is positioned at cabinet is in the filtering area 1 of malleation, forms working area 5 in the region below intermediate bulkheads 70 that is positioned at of cabinet.
By the first filter 30 at least one in filter, e.g. roof, the gas from the air outlet of blower fan 50 can be discharged to outside the Biohazard Safety Equipment of security seal via this first filter.Equally, by filter at least another, be e.g. positioned at the second filter 40 of intermediate bulkheads 70, in the working area 5 of the Biohazard Safety Equipment that can be discharged to security seal via this second filter from the gas of the air outlet of blower fan 50.This working area 5 is positioned at outside filtering area 1 in the Biohazard Safety Equipment of security seal.It addition, the minimum of the air velocity entered by gathering hole 20 or meansigma methods meet the authentication requesting of the Biohazard Safety Equipment of security seal.
In some preferably embodiment, opening with sidewall spacers in intermediate bulkheads 70, the part being positioned at outside filtering area 1 of double-deck utricule can extend at the lower zone of intermediate bulkheads.Such as, as shown in the cross-section in figure 2, air channel 3 and formed utricule 60 air channel 2,4 between internal layer 60A and outer layer 60B internal, i.e. utricule of filtering area be spatially communicate, be i.e. fluid communication, thus, whole air channel is in negative pressure.
Additionally, working area 5 and the gathering hole 20 of cabinet, i.e. cabinet ft connection, experiment material can be put into this working area by gathering hole 20 and be operated by operator.Can be provided with the lower clapboard 80 spaced apart with the diapire of cabinet in working area, this lower clapboard is used as the operating platform of safety cabinet, can place the experiment material needing operation.Particularly, this lower clapboard 80 forms the lower air duct of Biohazard Safety Equipment of security seal together with diapire.Such as, at least one air supply opening 82,84 can be provided with in this lower clapboard 80, so that flow into that double-deck utricule 60 is internal from the gas outside cabinet and the gas that is recycled in working area 5 from filtering area 1 via this at least one air supply opening 82,84, in other words this lower air duct, between the internal layer 60A and outer layer 60B of i.e. double-deck utricule, can be aspirated by blower fan 50.
It addition, as shown in Figure 2, blower fan 50 is arranged on cabinet top, so that its air outlet is positioned at filtering area, but it is also contemplated that also be provided with blower fan (not shown) in the lower air duct of bottom of cabinet bulk, to strengthen suction intensity, thus in utricule air channel, produce bigger underbalance effect.
It is preferred that as shown in Figure 2, outside this main air duct 3, it is additionally provided with the side dividing plate 90 that can separate with operation interval, so that operator will not directly influence the air channel being made up of flexible utricule 60 to the operation of experiment material, thus plays the effect blocked.
Utricule in literary composition generally relates to use wrappage double-deck, that be preferably fabricated from a flexible material.The material of utricule includes but not limited to it is cloth, rubber, as long as meeting required sealing, and can bear certain pressure.At the part of utricule and blower fan or filter connection, it is possible to use elastomeric material, so that it is between utricule and blower fan or filter, thus ensure the sealing of coupling part.But can also use and such as have the direct banding of resilient material.It is preferred that double-deck utricule directly can wrap on such as filter 30,40 and/or blower fan 50 by the way of banding, to realize installing and sealing.Those skilled in the art it is also contemplated that other connect utricule mode, such as so that utricule is relative to cabinet solid.
Utricule is as the implication in " monoblock type air channel " described in literary composition, by whole for utricule replacement conventional security seal Biohazard Safety Equipment in inner bag diaphragm structure rather than replace diaphragm structure partly.In other words, the air channel of the Biohazard Safety Equipment of security seal is changed into being in inside utricule completely from the region between inner bag dividing plate and cabinet wall, i.e. region between internal layer and the outer layer of utricule, and this integral air duct substantially need not be formed by any dividing plate in the cabinet of the Biohazard Safety Equipment of security seal and wall (in addition to the optional side dividing plate 90 playing the effect of blocking).In other words, the Biohazard Safety Equipment of security seal the most only has by the air channel being internally formed of double-deck utricule.
Relative to utricule in interior part in referring to the part between the internal layer of utricule and outer layer inside utricule described in literary composition rather than referring to the Biohazard Safety Equipment of security seal.Additionally, the internal layer of utricule is also relative concept with outer layer, such as, being referred to as internal layer towards that layer in filtering area, that layer away from filtering area is referred to as outer layer.
It follows that describe flexible utricule as the air flow path of the Biohazard Safety Equipment of the security seal of integral air duct by the dotted arrow of Fig. 2.
When using the Biohazard Safety Equipment of security seal, experiment material is put into working area 5, then starts blower fan 50.By double-deck utricule 60 inside connected with the air inlet of blower fan 50, enter the gas of safety cabinet from the gas in working area 5 and/or from gathering hole 20, such as flow into double-deck utricule 60 inside down through by least one opening in lower clapboard, and be such as drawn in blower fan 50 to top.It is in negative pressure between the internal layer 60A and outer layer 60B of the inside of utricule 60, i.e. utricule.Then, the air of suction is sent into and is such as arranged in the filtering area 1 above cabinet intermediate bulkheads by blower fan 50, and the pressure of filtering area 1 is more than the pressure of working area 5, and is in malleation, and therefore, the negative pressure in utricule surrounds the malleation in filtering area 1.When being provided with ventilative HEPA in roof and intermediate bulkheads 70 as shown in Figure 2, a part of gas in filtering area 1 enters in air by the filter 30 on roof, and another part flows into the working area of cabinet bottom by filter 40 Posterior circle being positioned in intermediate bulkheads 70.
Utilize technical solutions according to the invention, or those skilled in the art is under the inspiration of inventive technique scheme, design similar technical scheme, and reach above-mentioned technique effect, all fall into protection scope of the present invention.
Claims (9)
- null1. the Biohazard Safety Equipment of a security seal，It is characterized in that，The Biohazard Safety Equipment of this security seal has gathering hole at cabinet wall，The Biohazard Safety Equipment of described security seal also includes blower fan，And in the Biohazard Safety Equipment of described security seal, it is formed with working area and filtering area，Operator can in described working area operating operation test material，Gas outside the Biohazard Safety Equipment of described security seal is via described gathering hole、The air inlet of described blower fan it is sucked into by air channel，Described gas is entered inside described filtering area by the air outlet of described blower fan，To form malleation in described filtering area，Described gas is discharged to outside described filtering area through filtering，Described air channel is internally formed by the double-deck utricule of the Biohazard Safety Equipment being positioned at described security seal，So that the negative-pressure gas in described air channel is isolated with cabinet wall，And make negative pressure surround the malleation in described filtering area.
- 2. the Biohazard Safety Equipment of security seal as claimed in claim 1, it is characterized in that, described filtering area seals by described double-deck utricule, described filtering area is formed by a part for filter, described blower fan and described double-deck utricule, and the described gas in described filtering area is filtered by described filter.
- 3. want the Biohazard Safety Equipment of the security seal as described in 2 such as right, it is characterized in that, described filter includes the first filter and the second filter, a part for the gas coming from the air outlet of described blower fan is discharged in the environment outside the Biohazard Safety Equipment of described security seal via described first filter, and another part is discharged in described working area via described second filter.
- 4. the Biohazard Safety Equipment of security seal as claimed in claim 1, it is characterised in that also including intermediate bulkheads, described filtering area is positioned at above described intermediate bulkheads, and described working area is positioned at below described intermediate bulkheads.
- 5. the Biohazard Safety Equipment of security seal as claimed in claim 3, it is characterised in that inside the roof of the Biohazard Safety Equipment that described first filter is positioned at security seal, described second filter is arranged in described intermediate bulkheads.
- 6. the Biohazard Safety Equipment of security seal as claimed in claim 1, it is characterized in that, the lower clapboard for laying test material it is provided with in described working area, described lower clapboard forms lower air duct with the diapire of the Biohazard Safety Equipment of security seal, described lower air duct and the described air channel fluid communication formed by described bilayer vesicles body, thus it is also at negative pressure.
- 7. the Biohazard Safety Equipment of security seal as claimed in claim 1, it is characterised in that be additionally provided with another blower fan in described lower air duct, to strengthen the suction function in air channel, the gas of described working area enters described lower air duct via the hole on described lower clapboard.
- 8. the Biohazard Safety Equipment of security seal as claimed in claim 1, it is characterised in that the surrounding air being positioned at outside the Biohazard Safety Equipment of security seal enters described lower air duct by described gathering hole and via the hole on described lower clapboard.
- 9. the Biohazard Safety Equipment of security seal as claimed in claim 1, it is characterised in that described double-deck utricule directly wraps at described filter and described blower fan by the way of banding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259043.6A CN106268986A (en) | 2015-05-20 | 2015-05-20 | A kind of Biohazard Safety Equipment of security seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510259043.6A CN106268986A (en) | 2015-05-20 | 2015-05-20 | A kind of Biohazard Safety Equipment of security seal |
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| Publication Number | Publication Date |
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| CN106268986A true CN106268986A (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510259043.6A Pending CN106268986A (en) | 2015-05-20 | 2015-05-20 | A kind of Biohazard Safety Equipment of security seal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930704A (en) * | 2017-12-22 | 2018-04-20 | 中国人民解放军军事医学科学院卫生装备研究所 | A kind of bio-safety isolating device |
| WO2021143332A1 (en) * | 2020-01-19 | 2021-07-22 | 湖南大学 | Double-layer specified flow channel sealing structure for sealed box chamber and sealing method |
-
2015
- 2015-05-20 CN CN201510259043.6A patent/CN106268986A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107930704A (en) * | 2017-12-22 | 2018-04-20 | 中国人民解放军军事医学科学院卫生装备研究所 | A kind of bio-safety isolating device |
| WO2021143332A1 (en) * | 2020-01-19 | 2021-07-22 | 湖南大学 | Double-layer specified flow channel sealing structure for sealed box chamber and sealing method |
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Application publication date: 20170104 |