CN105983462B - A kind of vertical laminar flow clean work station - Google Patents
A kind of vertical laminar flow clean work station Download PDFInfo
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- CN105983462B CN105983462B CN201510044700.5A CN201510044700A CN105983462B CN 105983462 B CN105983462 B CN 105983462B CN 201510044700 A CN201510044700 A CN 201510044700A CN 105983462 B CN105983462 B CN 105983462B
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- interlayer
- working cavity
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- laminar flow
- handle hole
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Abstract
The present invention relates to a kind of vertical laminar flow clean work stations, including gas handling system, exhaust system, diffuser plate is equipped with below gas handling system, it is working cavity below diffuser plate, it is lamina of septum pellucidum by the side of proximal plate to have the transparent end plates for opening up handle hole, working cavity close to the working cavity outer end of staff, and interlayer is formed between transparent end plates and lamina of septum pellucidum, exhaust system includes the exhaust outlet being arranged below the interlayer, and the air extractor being connected with the exhaust outlet by gas exhaust piping.The present invention is dexterously provided with partition board in working cavity outer end, bleeding point is set to below interlayer, make to form low-pressure area below handle hole, enter workspace to cut off channel that internal gas is leaked by end plate handle hole and block ambient atmos, so that vertical laminar flow clean work station is really realized and do not reveal.The configuration of the present invention is simple, improvement expenses are extremely low, but effect is fine, are suitable for promoting in the industry.
Description
Technical field
The present invention relates to a kind of vertical laminar flow clean work stations.
Background technology
In industrial production, scientific research, many places need to use the environment of dustless work.Clean work station can be
These purposes provide effective working environment, improve production and scientific research efficiency.But there are some for used workbench at present
Defect, in general clean work station area all keep positive pressure to air, and there is volatilizable substance during the work time in this way will
It is directly discharged on the body of operating personnel.This seriously affects the health of operating personnel.Meanwhile in operation, operating personnel
The positions such as hand enter clean workspace, can also bring a large amount of dust granule into, influence the cleanliness factor for purifying workspace.
Applicant applied for Chinese invention patent CN200910211063.0 in 2009, and " air wall sealing type double positive pressure is net
Change workbench ", setting water conservancy diversion divides plate in water conservancy diversion divides area so that there is stronger air pressure close to staff side,
High pressure gas wall is formed, which effectively divides low zone of positive pressure and air, it is therefore prevented that the volatile materials in low-pressure area is to people
Body injures, while preventing external dust particle from entering workbench.This workbench has well solved the above problem, and is convenient for
Existing clean work station is transformed.
Research finds that upside air inlet bottom air draft frequently can lead to air-flow rebound, is unfavorable for the rapid row of volatizable material
It puts.Then applicant applied for Chinese invention patent CN201310120021.2 in 2013, a kind of " two layers flow purification work
Platform " makes the wind blown down not rebound, keeps internal gas flow more regular, close to level by the collector plate and wind-collecting cover at rear portion
Be discharged.
However this clean work station inevitably has a small amount of gas and is leaked out from higher-pressure region, when there are high-risk toxic gases
When, which becomes less safe and reliable.
Invention content
It is an object of the invention to：The defect for overcoming the above-mentioned prior art proposes a kind of vertical laminar flow clean work station,
Internal volatilization gas will not be revealed, it is ensured that the safety of operating personnel.
In order to achieve the above object, vertical laminar flow clean work station proposed by the present invention, including gas handling system, exhaust system
System, gas handling system lower section are equipped with diffuser plate, are working cavity below diffuser plate, it is characterized in that：Close to the working chamber of staff
External end has the transparent end plates for opening up handle hole, and the working cavity is lamina of septum pellucidum by the side of proximal plate, described transparent
Partition board has there are holding staff's both hands to stretch into the handle hole operated inside working cavity, the transparent end plates with it is transparent
Interlayer is formed between partition board, the exhaust system includes the exhaust outlet being arranged below the interlayer, and passes through gas exhaust piping
The air extractor being connected with the exhaust outlet.
The present invention, which further improves, to be：
1, the interlayer top has been passed through purification gas, and interlayer top is made to form auxiliary inlet, the auxiliary inlet
Low-pressure area is formed on interior formation higher-pressure region, the interlayer bottom.
2, the gas handling system and interlayer connecting place open up macropore, and purification gas is made to enter in interlayer, the hole of the macropore
Diameter ranging from 5-10mm, the diffuser plate above working cavity offer aperture, and the pore diameter range of aperture is 2-4mm.
3, the air pressure range in the low-pressure area is 0.9-0.7 atmospheric pressure, ranging from 1.05-1.1 in higher-pressure region
Atmospheric pressure.
4, the thickness of the interlayer is 50-100mm.
5, the lower partition offers the gas vent below handle hole, gas vent a diameter of 5-10mm, pitch of holes 10-
20mm。
What the anti-leak of the present invention was realized in：1, bleeding point is set to the handle hole lower part of end plate（The bottom of interlayer
Below auxiliary inlet）, negative pressure is formed at this, to take the gas in working cavity away；2, simultaneously as the effect of negative pressure,
Extraneous air is inhaled by the handle hole of end plate, is pumped after converging with the gas of working cavity discharge, due to low-pressure area
Presence prevent extraneous gas to enter workspace from crossing low-pressure area, working at the same time the gas in area cannot leak；3, from auxiliary
Help the gas that air intake duct is blown out that the air-flow in working cavity and the air flowed into from handle hole is forced rapidly to turn to and synthesize one
Stock and be discharged by exhaust outlet.Due to the effect of auxiliary port, the more reliable gas ensured in working cavity will not be from operation
Hole is discharged, and the air entered from handle hole will not enter the inside of working chamber, enable them to more smoothly from exhaust outlet quilt
It takes away.Not only it ensure that the pure of the interior air-supply of working cavity, but also prevented the leakage of pernicious gas；4, partition board lower end opens up exhaust
Hole, using gas vent can be instant discharge working cavity bottom close to the gas of handle hole, play the work for preventing air-flow from rebounding
With, to further increase the air-flow order inside interlayer, prevent air turbulence, be conducive to pernicious gas quickly drain.
As it can be seen that the present invention is dexterously provided with partition board in working cavity outer end, bleeding point is set to below interlayer, behaviour is made
Make formation low-pressure area below hole makes vertical laminar flow purify to cut off the channel that internal gas is leaked by end plate handle hole
Workbench is really realized and is not revealed.In addition, the present invention is also additionally arranged auxiliary inlet, further improve anti-leak can
By property.The configuration of the present invention is simple, improvement expenses are extremely low, but effect is fine, are suitable for promoting in the industry.
Description of the drawings
The present invention will be further described below with reference to the drawings.
Fig. 1 is the structural schematic diagram of one vertical laminar flow clean work station of the embodiment of the present invention.
Fig. 2 is a kind of distressed structure schematic diagram of one vertical laminar flow clean work station of the embodiment of the present invention.
Fig. 3 is the structural schematic diagram of two vertical laminar flow clean work station of the embodiment of the present invention.
Fig. 4 is tip plate configurations schematic diagram.
Fig. 5 is diaphragm structure schematic diagram.
Figure label is schematically as follows：1- diffuser plates, 2- working cavities, 3- end plates, 4- partition boards, 5- auxiliary inlets, 6- rows
Gas port, 7- gas exhaust pipings, 8- air extractors, 9- handle holes, 10- gas vents.
Specific implementation mode
The present invention will be further described in the following with reference to the drawings and specific embodiments.
Embodiment one
As shown in Figure 1, the present embodiment vertical laminar flow clean work station, including gas handling system, exhaust system, under gas handling system
Side is equipped with diffuser plate 1, and 1 lower section of diffuser plate is working cavity 2, has close to 2 outer end of working cavity of staff and opens up operation
The transparent end plates 2 in hole 9（See Fig. 4）, working cavity 2 is lamina of septum pellucidum 4 by the side of proximal plate 3, and lamina of septum pellucidum 4 is with there are appearances
Staff's both hands stretch into the handle hole operated inside working cavity（4 structure of partition board can be identical as end plate）, transparent end plates 3
Interlayer, compartment thickness 80mm are formed between lamina of septum pellucidum 4（Compartment thickness is between 50-100mm）.Exhaust system packet
The exhaust outlet 6 being arranged below interlayer is included, and the air extractor 8 being connected with exhaust outlet 6 by gas exhaust piping 7.The present embodiment
In, interlayer top has been passed through purification gas, so that interlayer top is formed auxiliary inlet, higher-pressure region is formed in auxiliary inlet, every
Low-pressure area is formed on layer bottom.It is realized especially by such structure：Gas handling system opens up macropore with interlayer connecting place, makes purified gas
Body enters in interlayer, and the pore diameter range of macropore is 5-10mm, and the diffuser plate above working cavity offers aperture, the aperture of aperture
Ranging from 2-4mm.Air pressure range in low-pressure area is 0.9-0.7 atmospheric pressure, and ranging from 1.05-1.1 in higher-pressure region are big
Air pressure.Arrow direction indicates air flow direction in Fig. 1.
The purification gas of gas handling system blowout, it is vertical after diffuser plate diffusing to enter in working cavity, and lead to
The handle hole outflow for crossing partition board is exhaust outlet below handle hole, so form low-pressure area in the region, ambient atmosphere is from end plate
Handle hole is inhaled into, the gas leakage inside effective means working cavity to the external world.
In this example, it transform the interlayer above handle hole as auxiliary inlet, and increase the air-flow in auxiliary inlet
Amount.The gas blown out from auxiliary inlet forces air-flow in working cavity and the air flowed into from handle hole rapidly to turn to simultaneously
It synthesizes one and is discharged by exhaust outlet.Therefore the present embodiment has better anti-leak result.
Preferred scheme, as shown in figure 5,4 lower part of partition board in this example offers the gas vent positioned at 9 lower section of handle hole
10, gas vent 10 a diameter of 5-10mm, pitch of holes 10-20mm.
As shown in Fig. 2, for a kind of simple deformation of 1 structure of the present embodiment, specifically, the trepanning of partition board top makes air inlet
A part of outlet of system is entered by the trepanning at this inside interlayer.Fig. 2 labels are illustrated referring to Fig. 1.Arrow in Fig. 2 indicates
Air flow direction.
Embodiment two
As described in Figure 3, the present embodiment vertical laminar flow clean work station is a kind of simplification side of one clean work station of embodiment
Case, specifically difference lies in be not passed through purification air above interlayer.Specifically, the present embodiment clean work station includes air inlet system
System, exhaust system, gas handling system lower section are equipped with diffuser plate 1, and 1 lower section of diffuser plate is working cavity 2, close to the work of staff
2 outer end of cavity has the transparent end plates 2 for opening up handle hole 9（See Fig. 4）, working cavity 2 is lamina of septum pellucidum by the side of proximal plate 3
4, lamina of septum pellucidum 4 has there are holding staff's both hands to stretch into the handle hole operated inside working cavity, transparent end plates 3 with
Interlayer, compartment thickness 50mm are formed between lamina of septum pellucidum 4, exhaust system includes the exhaust outlet 6, Yi Jitong being arranged below interlayer
Cross the air extractor 8 that gas exhaust piping 7 is connected with exhaust outlet 6.
The purification gas of gas handling system blowout, it is vertical after diffuser plate diffusing to enter in working cavity, and lead to
The handle hole outflow for crossing partition board is bleeding point below handle hole, so form low-pressure area in the region, ambient atmosphere is from end plate
Handle hole is inhaled into, the gas leakage inside effective means working cavity to the external world.Air flow direction is shown in Fig. 3 shown in arrow.
In addition to the implementation, the present invention can also have other embodiment.It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (4)
1. a kind of vertical laminar flow clean work station, including gas handling system, exhaust system, gas handling system lower section is equipped with diffuser plate, dissipates
It is working cavity below flowing plate, it is characterized in that：There is the transparent end for opening up handle hole close to the working cavity outer end of staff
Plate, the working cavity are lamina of septum pellucidum by the side of proximal plate, and the lamina of septum pellucidum is with there are hold staff's both hands to stretch
Enter the handle hole operated inside working cavity, forms interlayer, the exhaust system between the transparent end plates and lamina of septum pellucidum
System includes the exhaust outlet being arranged below the interlayer, and the air extractor being connected with the exhaust outlet by gas exhaust piping,
Gas handling system opens up macropore with interlayer connecting place, and purification gas is made to enter in interlayer, and the pore diameter range of the macropore is 15-
17mm, the diffuser plate above working cavity offer aperture, and the pore diameter range of aperture is 9-11mm, and described the lower partition offers
Gas vent below handle hole, a diameter of 5-10mm of gas vent, pitch of holes 10-20mm, the gas vent number are 18
It is a.
2. vertical laminar flow clean work station according to claim 1, it is characterised in that：The interlayer top has been passed through purification
Gas makes interlayer top form auxiliary inlet, forms higher-pressure region in the auxiliary inlet, and low pressure is formed on the interlayer bottom
Area.
3. vertical laminar flow clean work station according to claim 2, it is characterised in that：Air pressure range in the low-pressure area
For 0.9-0.7 atmospheric pressure, the ranging from 1.05-1.1 atmospheric pressure in higher-pressure region.
4. vertical laminar flow clean work station according to claim 1, it is characterised in that：The thickness of the interlayer is 50-
100mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044700.5A CN105983462B (en) | 2015-01-28 | 2015-01-28 | A kind of vertical laminar flow clean work station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510044700.5A CN105983462B (en) | 2015-01-28 | 2015-01-28 | A kind of vertical laminar flow clean work station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105983462A CN105983462A (en) | 2016-10-05 |
| CN105983462B true CN105983462B (en) | 2018-07-27 |
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| CN201510044700.5A Active CN105983462B (en) | 2015-01-28 | 2015-01-28 | A kind of vertical laminar flow clean work station |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008136215A1 (en) * | 2007-04-26 | 2008-11-13 | C'stec Corporation | Clean unit, method of operating clean unit, and connected clean unit |
| CN101362107A (en) * | 2007-08-07 | 2009-02-11 | 黄荣芳 | Push-pull type exhaust gas cabinet |
| CN101711999A (en) * | 2009-11-11 | 2010-05-26 | 南通大学 | Air wall sealing type double positive pressure purification workbench |
| CN202136987U (en) * | 2010-12-24 | 2012-02-08 | 黄荣芳 | Air curtain type biological safety cabinet (BSC) |
| CN203227511U (en) * | 2013-04-17 | 2013-10-09 | 南通大学 | Dual-positive-pressure clean workbench |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103894244A (en) * | 2012-12-30 | 2014-07-02 | 青岛联合创新技术服务平台有限公司 | Novel super clean bench |
-
2015
- 2015-01-28 CN CN201510044700.5A patent/CN105983462B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008136215A1 (en) * | 2007-04-26 | 2008-11-13 | C'stec Corporation | Clean unit, method of operating clean unit, and connected clean unit |
| CN101362107A (en) * | 2007-08-07 | 2009-02-11 | 黄荣芳 | Push-pull type exhaust gas cabinet |
| CN101711999A (en) * | 2009-11-11 | 2010-05-26 | 南通大学 | Air wall sealing type double positive pressure purification workbench |
| CN202136987U (en) * | 2010-12-24 | 2012-02-08 | 黄荣芳 | Air curtain type biological safety cabinet (BSC) |
| CN203227511U (en) * | 2013-04-17 | 2013-10-09 | 南通大学 | Dual-positive-pressure clean workbench |
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| Publication number | Publication date |
|---|---|
| CN105983462A (en) | 2016-10-05 |
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Effective date of registration: 20200331 Address after: Li Li Zhen Jin Jia Ba Jin Xin Lu Nan, Wujiang District, Suzhou City, Jiangsu Province Patentee after: Suzhou Zhongchun Construction Co., Ltd Address before: 226019 Jiangsu Province, Nantong City Chongchuan District sik Road No. 9 Institute of electronic and Information Engineering Nantong University Patentee before: NANTONG University |