CN105178645B - Negative pressure weighing room - Google Patents
Negative pressure weighing room Download PDFInfo
- Publication number
- CN105178645B CN105178645B CN201510576688.2A CN201510576688A CN105178645B CN 105178645 B CN105178645 B CN 105178645B CN 201510576688 A CN201510576688 A CN 201510576688A CN 105178645 B CN105178645 B CN 105178645B
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- damping
- plenum chamber
- homogenizing plate
- negative pressure
- weighing room
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Abstract
The invention provides negative pressure weighing room, and it can solve the problems, such as that uneven air, wind speed can not reach code requirement in operating room existing for existing negative pressure weighing room.It includes weighing room's body, it is provided with weighing room's body and weighs operating room, rear channels and top passageway, is provided with plenum chamber in top passageway, the top air inlet for weighing operating room is provided with high efficiency particulate air filter, plenum chamber is located at the top of the high efficiency particulate air filter, it is characterised in that：Damping current equalizer is provided with plenum chamber, damping current equalizer includes damping homogenizing plate, the inner space of the plenum chamber is separated into forward and backward two parts by damping homogenizing plate, the upper end edge air intake direction for damping homogenizing plate is obliquely installed to plenum chamber inner side, is damped and is provided with some diffusion holes on homogenizing plate.
Description
Technical field
The present invention relates to air cleaning facility field, more particularly, to the air cleaning facility field of negative pressure weighing room, tool
Body is a kind of damping current equalizer.
Background technology
Pharmaceutical industry is extremely strict to healthy requirement, and the supplementary material of GMP code requirement preparations is weighed and be able to should protected
Hold in the special negative pressure weighing room of operating space negative pressure state, and require that the airflow pattern in negative pressure weighing room operating area is
Vertical unidirectional stream, controlled wind speed are in 0.45 ± 20%m/s；And need to obtain uniform air-out, it is necessary to there are enough static pressure spaces.
Existing negative pressure weighing room, the negative pressure as disclosed in the Chinese invention patent that notification number is CN203583925U weigh
Room, it uses the vertical airflow pattern unidirectionally flowed, although it passes through just effect, middle effect and efficiently tertiary filter can be to air
Effective clean processing is carried out, but the static pressure space at the top of it is uniform due to the volumetric constraint by weighing room in itself, wind speed
Degree is extremely difficult to ± 20%m/s, and it enters the air in static pressure space and operation chamber inlet is flowed in the presence of inertia, causes to operate
Wind speed is bigger than normal at chamber inlet, and more than the upper limit, and operating room bottom wind speed is less than normal, less than wind speed lower limit.
The content of the invention
In view of the above-mentioned problems, the invention provides negative pressure weighing room, it can be solved, and existing negative pressure weighing room is existing to be operated
Indoor uneven air, wind speed can not reach the problem of code requirement.
Negative pressure weighing room, it includes weighing room's body, be provided with weighing room's body weigh operating room, rear channels and
Top passageway, the top passageway is interior to be provided with plenum chamber, and the top air inlet for weighing operating room is provided with high efficiency filter
Device, the plenum chamber are located at the top of the high efficiency particulate air filter, it is characterised in that：Damping is provided with the plenum chamber to flow
Device, the damping current equalizer include damping homogenizing plate, and the damping homogenizing plate separates the inner space of the plenum chamber
Into forward and backward two parts, the upper end edge air intake direction of the damping homogenizing plate is obliquely installed to plenum chamber inner side, the damping
Some diffusion holes are provided with homogenizing plate.
Further, the damping homogenizing plate is elastic metal sheet.
Preferably, the damping homogenizing plate is flexible curved stainless steel plate.
Further, some diffusion holes are set in a row, and some diffusion holes set in a row, its aperture with
And the pitch of holes of the adjacent diffusion hole in same row is gradually increased from the center of the damping homogenizing plate to both sides.
Further, the damping homogenizing plate is installed on the air inlet of the plenum chamber, the bottom of the damping homogenizing plate
Portion is installed on the base of the plenum chamber air inlet, and the inner roof wall of the plenum chamber is installed at the top of the damping homogenizing plate
On, the installation site at the top of the damping homogenizing plate on the plenum chamber inner roof wall is adjustable.
Further, the damping current equalizer also includes at least one top fixture, the top fixture installation
In on the inner roof wall of the plenum chamber, the top of the damping homogenizing plate is installed on the top fixture by bolts and nuts
On.
Further, the top fixture is hollow tubulose, and the bottom surface of the top fixture is provided with along described quiet
Press the elongated sliding groove of case length direction extension, top peace of the bolt through the sliding groove, the damping homogenizing plate
Nut thread connection described in dress Kong Houyu is simultaneously tight.
Further, the damping current equalizer also includes spacer pin, symmetrical equal on the two side of the top fixture
Some limit pin holes are laid with, after the top of the damping homogenizing plate and the top fixture are installed in place, the spacer pin
Insertion is in a pair of dowel holes of the front side of the bolt.
Further, the bottom of the rear channels is provided with just effect and medium effeciency filter, just effect and the medium air filtration
The top of device is provided with centrifugal blower, and centrifugal fan air outlet connects the air inlet of the plenum chamber by airduct of blowing, described quiet
Press the anterior air outlet installation air draft high efficiency particulate air filter of case.
Compared with existing negative pressure weighing room, the beneficial effects of the present invention are：
（1）Damping current equalizer in plenum chamber can be equal to playing effective reduction of speed into the air-flow in plenum chamber
Stream acts on, and specifically it is that the damping homogenizing plate for being provided with some diffusion holes is arranged into upper end edge air intake direction into plenum chamber
The inner space of plenum chamber is divided into forward and backward two parts by the inclined state in side, damps heeling condition and the damping of homogenizing plate
Some diffusion holes on homogenizing plate carry out reduction of speed with flowing to the air-flow entered in plenum chamber so that the gas anterior into plenum chamber
Stream uniformly flows into high efficiency particulate air filter and ultimately forms equably downward air-flow into operating room is weighed, and ensures that the wind speed uniformity reaches
To the requirement of GMP specifications；
（2）And because damping homogenizing plate uses elastic metal sheet, flexible curved stainless steel plate also or is directly used,
According to the air-flow size for actually entering plenum chamber, when the one end for damping homogenizing plate is fixed, due to damping homogenizing plate is flexible,
Can be with flexural deformation, therefore it can damp the installation site of the homogenizing plate other end by adjusting and increased or decrease plenum chamber to reach
The purpose of the size in forward and backward two parts space, flows effect so as to be further ensured that；
（3）Set in a row by the way that some diffusion holes opened up on homogenizing plate will be damped, and some diffusions set in a row
The pitch of holes of adjacent diffusion hole in hole, its aperture and same row gradually increases from the center of damping homogenizing plate to both sides, more
It is further ensured that uniform diffusion of the diffusion hole to air-flow；
（4）Damping homogenizing plate is arranged to the air inlet of plenum chamber, is particularly installed in the bottom for damping homogenizing plate
On the base of plenum chamber air inlet, and it is adjustable that the upper end for damping homogenizing plate is arranged into installation site, ensure that damping homogenizing plate
Enough regulation spaces are installed, further ensure that damping homogenizing plate the work flowed is adjusted according to air-flow size
With；
（5）Top fixture is set by the inner roof wall in plenum chamber, and sliding groove is opened up in the bottom of top fixture,
It can be slided for damping the bolt being connected at the top of homogenizing plate with top fixture in sliding groove, consequently facilitating damping homogenizing plate
The regulation of top mounting location；And spacer pin can play position-limiting action to bolt, prevent from damping homogenizing plate by plenum chamber air intake
Installation site displacement occurs for mouth airflow function, it is ensured that the stabilization of current balance function.
Brief description of the drawings
Fig. 1 is the schematic side view of negative pressure weighing room of the present invention；
Fig. 2 is the side view enlarged diagram that current equalizer is damped in the present invention；
Fig. 3 is Fig. 2 left view schematic diagram；
Fig. 4 is the exploded perspective schematic diagram that current equalizer is damped in the present invention；
Fig. 5 is the sectional view for the top fixture that current equalizer is damped in the present invention.
Embodiment
See Fig. 1, Fig. 2 and Fig. 3, negative pressure weighing room of the present invention includes weighing room's body 10, is provided with and weighs in weighing room's body
Operating room 11, rear channels 12 and top passageway 13, top passageway 13 is interior to be provided with plenum chamber 50, and the top for weighing operating room 11 is entered
High efficiency particulate air filter 70 is installed, plenum chamber 50 is located at the top of high efficiency particulate air filter 70, and the bottom of high efficiency particulate air filter 70 is set at air port
There is stream film 90, the bottom of rear channels 12 is provided with just effect and medium effeciency filter 20, just the top of effect and medium effeciency filter 20
Provided with centrifugal blower 30, the air outlet of centrifugal blower 30 connects the air inlet of plenum chamber 50 by airduct 40 of blowing, plenum chamber 50
Anterior air outlet installation air draft high efficiency particulate air filter 60；Damping current equalizer 80 is provided with plenum chamber 50, damps current equalizer
80 include damping homogenizing plate 81, and the inner space of plenum chamber 50 is separated into front part 51 and rear section by damping homogenizing plate 81
52 two parts, the upper end edge air intake direction for damping homogenizing plate 81 are obliquely installed to plenum chamber inner side, damp and be provided with homogenizing plate 81
Some diffusion holes 82.
Damping homogenizing plate 81 is adopted as elastic material board；Preferably flexible arc sheetmetal.
See Fig. 3, some diffusion holes 82 are set in a row, and the aperture of the diffusion hole of each row is identical, and if set in a row
The pitch of holes of adjacent diffusion hole in dry diffusion hole, its aperture and same row from it is described damping homogenizing plate center to both sides by
It is cumulative big.
See Fig. 1, damping homogenizing plate 81 is installed on the air inlet of plenum chamber 50, and the bottom of damping homogenizing plate 81 is installed in quiet
On the base for pressing case air inlet, at least one top fixture 83 is installed on the inner roof wall of plenum chamber 50, pushed up in the present embodiment
End fixture 83 is provided with two, sees Fig. 3 and Fig. 4, to ensure that the installation at the top of damping homogenizing plate 81 is relatively reliable；Top is fixed
Part 83 is hollow tubulose, sees Fig. 4 and Fig. 5, and the top of damping homogenizing plate 81 is installed on the inner roof wall of plenum chamber 50, and top is solid
The bottom surface for determining part 83 is provided with the elongated sliding groove 831 extended along plenum chamber length direction, and the top of damping homogenizing plate 81 passes through
Bolt 84 is connected with nut 85 with top fixture 83, and bolt 84 passes through sliding groove 831, the peace on damping homogenizing plate 81 top
Dress is locked behind hole 811 by nut 85, and bolt 84 can be slidably reciprocated in sliding groove 831 to adjust the top of damping homogenizing plate 81
Installation site；Some limit pin holes 832 are symmetrically laid with the two side of top fixture 83, damp the top of homogenizing plate 81
After being installed in place with top fixture 83, the insertion of spacer pin 86 is in a pair of limit pin holes of the front side of bolt 84.
In Fig. 3,812 be mounting hole, for the base for damping homogenizing plate 81 and the air inlet of plenum chamber 50 to be passed through into bolt 87
It is fixed；In Fig. 1, A illustrates to for front side direction, and B illustrates to for rear direction；80 in Fig. 1 be three kinds of different top installation positions
Damping homogenizing plate under configuration state.
Claims (8)
1. negative pressure weighing room, it includes weighing room's body, is provided with weighing room's body and weighs operating room, rear channels and top
Portion's passage, the top passageway is interior to be provided with plenum chamber, and the top air inlet for weighing operating room is provided with high efficiency particulate air filter,
The plenum chamber is located at the top of the high efficiency particulate air filter, it is characterised in that：Damping stream dress is provided with the plenum chamber
Put, the damping current equalizer includes damping homogenizing plate, and the inner space of the plenum chamber is separated into by the damping homogenizing plate
Forward and backward two parts, the upper end edge air intake direction of the damping homogenizing plate are obliquely installed to plenum chamber inner side, and the damping is equal
Some diffusion holes are provided with flowing plate；Some diffusion holes are set in a row, and the diffusion hole aperture in each row is identical, described
The pitch of holes of adjacent diffusion hole in some diffusion holes set in a row, its aperture and same row is by the damping homogenizing plate
Center gradually increases to both sides.
2. negative pressure weighing room according to claim 1, it is characterised in that：The damping homogenizing plate is elastic metal sheet.
3. negative pressure weighing room according to claim 2, it is characterised in that：The damping preferably flexible arc of homogenizing plate
Shape stainless steel plate.
4. the negative pressure weighing room according to any one of claim 1 ~ 3, it is characterised in that：The damping homogenizing plate is installed on
The air inlet of the plenum chamber, the bottom of the damping homogenizing plate is installed on the base of the plenum chamber air inlet, described
It is installed at the top of damping homogenizing plate on the inner roof wall of the plenum chamber.
5. negative pressure weighing room according to claim 4, it is characterised in that：The damping current equalizer also includes at least one
Top fixture, the top fixture are installed on the inner roof wall of the plenum chamber, are passed through at the top of the damping homogenizing plate
Bolts and nuts are installed on the top fixture.
6. negative pressure weighing room according to claim 5, it is characterised in that：The top fixture is hollow tubulose, institute
The bottom surface for stating top fixture is provided with the elongated sliding groove extended along the plenum chamber length direction, and the bolt is described in
It is connected after sliding groove, the top mounting holes for damping homogenizing plate with the nut thread and tight.
7. negative pressure weighing room according to claim 6, it is characterised in that：The damping current equalizer also includes alignment pin,
Some dowel holes, the top and the top of the damping homogenizing plate are symmetrically laid with the two side of the top fixture
After end fixture is installed in place, the alignment pin insertion is in a pair of dowel holes of the front side of the bolt.
8. negative pressure weighing room according to claim 6, it is characterised in that：The bottom of the rear channels be provided with just effect and
Medium effeciency filter, the just top of effect and medium effeciency filter are provided with centrifugal blower, and centrifugal fan air outlet passes through airduct of blowing
Connect the air inlet of the plenum chamber, the anterior air outlet installation air draft high efficiency particulate air filter of the plenum chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510576688.2A CN105178645B (en) | 2015-09-11 | 2015-09-11 | Negative pressure weighing room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510576688.2A CN105178645B (en) | 2015-09-11 | 2015-09-11 | Negative pressure weighing room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105178645A CN105178645A (en) | 2015-12-23 |
| CN105178645B true CN105178645B (en) | 2017-12-12 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510576688.2A Active CN105178645B (en) | 2015-09-11 | 2015-09-11 | Negative pressure weighing room |
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| CN (1) | CN105178645B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106016650B (en) * | 2016-05-16 | 2019-10-22 | 珠海格力电器股份有限公司 | Air-out component and air conditioner with it |
| CN106016649A (en) * | 2016-07-15 | 2016-10-12 | 青岛海尔空调电子有限公司 | Air supply device for air-conditioning heat exchanger |
| CN107101290A (en) * | 2017-04-24 | 2017-08-29 | 苏州英德尔室内空气技术有限公司 | A kind of negative pressure weighing room |
| CN108593060A (en) * | 2017-09-14 | 2018-09-28 | 苏州天微至胜运动控制技术有限公司 | A kind of negative pressure meausring apparatus and weighing technique |
| CN113446194B (en) * | 2021-07-05 | 2023-08-18 | 江苏宝联气体有限公司 | Wind type aftercooler |
| JP2023038718A (en) * | 2021-09-07 | 2023-03-17 | 株式会社日立産機システム | Air cleaning negative pressure device |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10238835A (en) * | 1997-02-25 | 1998-09-08 | Toosetsu Kk | Separate vertical type supply and exhaust duct for multiple dwelling |
| CN2669962Y (en) * | 2003-12-31 | 2005-01-12 | 朱全荣 | Even flowing high efficient filter |
| CN1963322A (en) * | 2006-12-01 | 2007-05-16 | 清华大学 | A dynamical replacement aeration and blast apparatus |
| CN202105526U (en) * | 2011-06-01 | 2012-01-11 | 程勇 | Relatively negative-pressure sealed high-efficiency filter system |
| CN203583925U (en) * | 2013-10-31 | 2014-05-07 | 东莞市长原科技实业有限公司 | Negative-pressure weighing chamber |
| CN203672473U (en) * | 2014-01-20 | 2014-06-25 | 苏州华泰空气过滤器有限公司 | Negative pressure weighing cover |
| CN203879049U (en) * | 2014-05-15 | 2014-10-15 | 东莞市长原科技实业有限公司 | Controllable constant-temperature negative pressure weighing room |
| CN205012712U (en) * | 2015-09-11 | 2016-02-03 | 无锡零界净化设备有限公司 | Negative -pressure weighing chamber |
-
2015
- 2015-09-11 CN CN201510576688.2A patent/CN105178645B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10238835A (en) * | 1997-02-25 | 1998-09-08 | Toosetsu Kk | Separate vertical type supply and exhaust duct for multiple dwelling |
| CN2669962Y (en) * | 2003-12-31 | 2005-01-12 | 朱全荣 | Even flowing high efficient filter |
| CN1963322A (en) * | 2006-12-01 | 2007-05-16 | 清华大学 | A dynamical replacement aeration and blast apparatus |
| CN202105526U (en) * | 2011-06-01 | 2012-01-11 | 程勇 | Relatively negative-pressure sealed high-efficiency filter system |
| CN203583925U (en) * | 2013-10-31 | 2014-05-07 | 东莞市长原科技实业有限公司 | Negative-pressure weighing chamber |
| CN203672473U (en) * | 2014-01-20 | 2014-06-25 | 苏州华泰空气过滤器有限公司 | Negative pressure weighing cover |
| CN203879049U (en) * | 2014-05-15 | 2014-10-15 | 东莞市长原科技实业有限公司 | Controllable constant-temperature negative pressure weighing room |
| CN205012712U (en) * | 2015-09-11 | 2016-02-03 | 无锡零界净化设备有限公司 | Negative -pressure weighing chamber |
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| Publication number | Publication date |
|---|---|
| CN105178645A (en) | 2015-12-23 |
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 214125 Jiangsu City, Wuxi province Binhu District, Taihu City, the new economic Park Applicant after: Wuxi Lingjie cleaning equipment Limited by Share Ltd Address before: 214125 Jiangsu City, Wuxi province Binhu District, Taihu City, the new economic Park Applicant before: Wuxi zero boundary cleaning equipment Co., Ltd |
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| GR01 | Patent grant |