CN205012712U - Negative -pressure weighing chamber - Google Patents
Negative -pressure weighing chamber Download PDFInfo
- Publication number
- CN205012712U CN205012712U CN201520702338.1U CN201520702338U CN205012712U CN 205012712 U CN205012712 U CN 205012712U CN 201520702338 U CN201520702338 U CN 201520702338U CN 205012712 U CN205012712 U CN 205012712U
- Authority
- CN
- China
- Prior art keywords
- damping
- homogenizing plate
- plenum chamber
- negative pressure
- weighing room
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Ventilation (AREA)
Abstract
The utility model provides a negative -pressure weighing chamber, it can solve the problem that the interior air supply of control chamber is inhomogeneous, the wind speed can not reach the specification requirement that current negative -pressure weighing chamber exists. It includes the weighing room body, and control chamber, rear portion passageway and top passageway are weighed to this internal being equipped with of weighing room, are equipped with the static pressure case in the passageway of top, and the top air intake department that weighs the control chamber installs high efficiency filter, and the static pressure case lies in high efficiency filter's top, its characterized in that: be provided with damping flow straightener in the static pressure case, damping flow straightener includes the damping board that flow equalizes, and the board is flow equalized in the damping will before the inside space separation of static pressure case becomes, back two parts, the damping is flow equalized the upper end of board and is heeled to the static pressure incasement along the air inlet direction and set up to one side, the damping flow equalizes to open on the board has a plurality of diffusion holes.
Description
Technical field
The utility model relates to air cleaning facility field, especially relates to the air cleaning facility field of negative pressure weighing room, is specially a kind of damping current equalizer.
Background technology
Pharmaceutical industry is extremely strict to healthy requirement, the supplementary material of GMP code requirement preparation weighs and in the special negative pressure weighing room that can keep operating space negative pressure state, and should require that the airflow pattern in negative pressure weighing room operating area is that vertical way flow, controlled wind speed are at 0.45 ± 20%m/s; And need to obtain uniform air-out, enough static pressure spaces must be had.
Existing negative pressure weighing room, as notification number a kind of negative pressure weighing room disclosed in the Chinese utility model patent of CN203583925U, it adopts the airflow pattern of vertical way flow, it is through just imitating, although middle effect and efficient tertiary filter can carry out effective clean process to air, but the static pressure space at its top is owing to being subject to the volume restriction of weighing room itself, the wind speed uniformity is difficult to reach ± 20%m/s, its air entering static pressure space at the flows by action of inertia to operating room entrance, cause operating room entrance wind speed bigger than normal, exceed the upper limit, and wind speed is less than normal bottom operating room, lower than wind speed lower limit.
Summary of the invention
For the problems referred to above, the utility model provides a kind of negative pressure weighing room, and it can solve uneven air, wind speed in operating room that existing negative pressure weighing room exists can not reach the problem of code requirement.
A kind of negative pressure weighing room, it comprises weighing room's body, weighing operating room is provided with in described weighing room body, rear channels and top passageway, plenum chamber is provided with in described top passageway, the top air inlet of described weighing operating room is provided with high efficiency particulate air filter, described plenum chamber is positioned at the top of described high efficiency particulate air filter, it is characterized in that: in described plenum chamber, be provided with damping current equalizer, described damping current equalizer comprises damping homogenizing plate, before the inner space of described plenum chamber is separated into by described damping homogenizing plate, rear two parts, the upper end edge air intake direction of described damping homogenizing plate is obliquely installed inside described plenum chamber, described damping homogenizing plate has some diffusion holes.
Further, described damping homogenizing plate is elastic metal sheet.
Preferably, described damping homogenizing plate is for having flexible curved stainless steel plate.
Further, described some diffusion holes set in a row, and described in set in a row some diffusion holes, adjacent diffusion hole in its aperture and same row pitch of holes increased gradually to both sides by the center of described damping homogenizing plate.
Further, described damping homogenizing plate is installed on the air inlet of described plenum chamber, the bottom of described damping homogenizing plate is installed on the base of described plenum chamber air intake, the top of described damping homogenizing plate is installed on the inner roof wall of described plenum chamber, and the installation site of described damping homogenizing plate top on described plenum chamber inner roof wall is adjustable.
Further, described damping current equalizer also comprises at least one top fixture, and described top fixture is installed on the inner roof wall of described plenum chamber, and the top of described damping homogenizing plate is installed on the fixture of described top by bolts and nuts.
Further, described top fixture is the tubulose of hollow, the bottom surface of described top fixture has the elongated sliding tray extended along described plenum chamber length direction, and described bolt is also tight through being connected with described nut thread after the top mounting holes of described sliding tray, described damping homogenizing plate.
Further, described damping current equalizer also comprises spacer pin, on the two side of described top fixture, symmetry is laid with some limit pin holes, after the top of described damping homogenizing plate and described top fixture are in place, described spacer pin inserts a pair dowel hole being positioned at the front side of described bolt.
Further, the bottom of described rear channels is provided with just effect and medium effeciency filter, the top of described just effect and medium effeciency filter is provided with centrifugal blower, centrifugal fan air outlet connects the air intake of described plenum chamber by air-supply airduct, and the anterior air outlet of described plenum chamber installs air draft high efficiency particulate air filter.
Compared with existing negative pressure weighing room, the beneficial effects of the utility model are:
(1) the damping current equalizer be arranged in plenum chamber can play effective reduction of speed current balance function to the air-flow entered in plenum chamber, it is arranged to by the damping homogenizing plate having some diffusion holes before state that upper end edge air intake direction tilts inside plenum chamber is divided into the inner space of plenum chamber specifically, rear two parts, some diffusion holes on the heeling condition of damping homogenizing plate and damping homogenizing plate carry out reduction of speed and current-sharing to the air-flow entered in plenum chamber, flow into high efficiency particulate air filter with making to enter the uniform stream of plenum chamber front portion finally form air-flow downward equably and enter weighing operating room, ensure that the wind speed uniformity reaches the requirement of GMP specification,
(2) and due to damping homogenizing plate adopt elastic metal sheet, also or directly adopt and there is flexible curved stainless steel plate, according to the actual air-flow size entering plenum chamber, when one end of damping homogenizing plate is fixed, due to damping homogenizing plate have elasticity, can flexural deformation, therefore it can reach the object of the size increasing or reduce the forward and backward two parts space of plenum chamber by the installation site of the damping adjusting homogenizing plate other end, thus ensure current-sharing effect further;
(3) by some diffusion holes that damping homogenizing plate is offered are set in a row, and the pitch of holes of the adjacent diffusion hole in the some diffusion holes set in a row, its aperture and same row is increased to both sides gradually by the center of damping homogenizing plate, further ensure that diffusion hole is to the even diffusion of air-flow;
(4) damping homogenizing plate is arranged at the air inlet of plenum chamber, particularly the bottom of damping homogenizing plate is installed on the base of plenum chamber air intake, and it is adjustable the upper end of damping homogenizing plate to be arranged to installation site, what ensure that damping homogenizing plate is provided with enough adjustment spaces, further ensure that damping homogenizing plate carries out regulating the effect of current-sharing according to air-flow size;
(5) by arranging top fixture at the inner roof wall of plenum chamber, and offer sliding tray in the bottom of top fixture, the bolt be connected with top fixture for damping homogenizing plate top can slide in sliding tray, thus is convenient to the adjustment of damping homogenizing plate top mounting location; And spacer pin can play position-limiting action to bolt, prevent damping homogenizing plate from by plenum chamber air intake airflow function, installation site displacement occurring, guarantee the stable of current balance function.
Accompanying drawing explanation
Fig. 1 is the schematic side view of the utility model negative pressure weighing room;
Fig. 2 is the side-looking enlarged diagram of damping current equalizer in the utility model;
Fig. 3 is that schematic diagram is looked on a left side of Fig. 2;
Fig. 4 is the exploded perspective schematic diagram of damping current equalizer in the utility model;
Fig. 5 is the sectional view of the top fixture of damping current equalizer in the utility model.
Detailed description of the invention
See Fig. 1, Fig. 2 and Fig. 3, the utility model negative pressure weighing room comprises weighing room's body 10, be provided with in weighing room's body and weigh operating room 11, rear channels 12 and top passageway 13, plenum chamber 50 is provided with in top passageway 13, the top air inlet weighing operating room 11 is provided with high efficiency particulate air filter 70, plenum chamber 50 is positioned at the top of high efficiency particulate air filter 70, the bottom of high efficiency particulate air filter 70 is provided with current-sharing film 90, the bottom of rear channels 12 is provided with just effect and medium effeciency filter 20, the top of first effect and medium effeciency filter 20 is provided with centrifugal blower 30, centrifugal blower 30 air outlet connects the air intake of plenum chamber 50 by air-supply airduct 40, the anterior air outlet of plenum chamber 50 installs air draft high efficiency particulate air filter 60, damping current equalizer 80 is provided with in plenum chamber 50, damping current equalizer 80 comprises damping homogenizing plate 81, the inner space of plenum chamber 50 is separated into front part 51 and rear section 52 two parts by damping homogenizing plate 81, the upper end edge air intake direction of damping homogenizing plate 81 is obliquely installed inside plenum chamber, damping homogenizing plate 81 has some diffusion holes 82.
Damping homogenizing plate 81 is adopted as elastic material board; Preferably there is flexible arc sheetmetal.
See Fig. 3, some diffusion holes 82 set in a row, and the aperture of diffusion hole of each row is identical, and the pitch of holes of adjacent diffusion hole in the some diffusion holes set in a row, its aperture and same row is increased to both sides gradually by the center of described damping homogenizing plate.
See Fig. 1, damping homogenizing plate 81 is installed on the air inlet of plenum chamber 50, the bottom of damping homogenizing plate 81 is installed on the base of plenum chamber air intake, the inner roof wall of plenum chamber 50 is provided with at least one top fixture 83, in the present embodiment, top fixture 83 is provided with two, see Fig. 3 and Fig. 4, more reliable to ensure the installation at damping homogenizing plate 81 top; Top fixture 83 is the tubulose of hollow, see Fig. 4 and Fig. 5, the top of damping homogenizing plate 81 is installed on the inner roof wall of plenum chamber 50, the bottom surface of top fixture 83 has the elongated sliding tray 831 extended along plenum chamber length direction, the top of damping homogenizing plate 81 is connected with top fixture 83 with nut 85 by bolt 84, and locked by nut 85 after the installing hole 811 of bolt 84 through sliding tray 831, damping homogenizing plate 81 top, bolt 84 can slidably reciprocate with the installation site at damping adjusting homogenizing plate 81 top in sliding tray 831; On the two side of top fixture 83, symmetry is laid with some limit pin holes 832, and after the top of damping homogenizing plate 81 and top fixture 83 are in place, spacer pin 86 inserts a pair limit pin hole being positioned at the front side of bolt 84.
In Fig. 3,812 is installing hole, for being fixed by bolt 87 on the base of damping homogenizing plate 81 with plenum chamber 50 air intake; In Fig. 1, A is to for front side is to signal, and B is to being rear direction signal; In Fig. 1 80 is the damping homogenizing plate under the state of installation site, three kinds of different tops.
Claims (9)
1. a negative pressure weighing room, it comprises weighing room's body, weighing operating room is provided with in described weighing room body, rear channels and top passageway, plenum chamber is provided with in described top passageway, the top air inlet of described weighing operating room is provided with high efficiency particulate air filter, described plenum chamber is positioned at the top of described high efficiency particulate air filter, it is characterized in that: in described plenum chamber, be provided with damping current equalizer, described damping current equalizer comprises damping homogenizing plate, before the inner space of described plenum chamber is separated into by described damping homogenizing plate, rear two parts, the upper end edge air intake direction of described damping homogenizing plate is obliquely installed inside described plenum chamber, described damping homogenizing plate has some diffusion holes.
2. a kind of negative pressure weighing room according to claim 1, is characterized in that: described damping homogenizing plate is elastic metal sheet.
3. a kind of negative pressure weighing room according to claim 2, is characterized in that: described damping homogenizing plate is for having flexible curved stainless steel plate.
4. according to described a kind of negative pressure weighing room arbitrary in claims 1 to 3, it is characterized in that: described some diffusion holes set in a row, described diffusion hole aperture in each row is identical, described in set in a row some diffusion holes, adjacent diffusion hole in its aperture and same row pitch of holes increased gradually to both sides by the center of described damping homogenizing plate.
5. a kind of negative pressure weighing room according to claim 4, it is characterized in that: described damping homogenizing plate is installed on the air inlet of described plenum chamber, the bottom of described damping homogenizing plate is installed on the base of described plenum chamber air intake, and the top of described damping homogenizing plate is installed on the inner roof wall of described plenum chamber.
6. a kind of negative pressure weighing room according to claim 5, it is characterized in that: described damping current equalizer also comprises at least one top fixture, described top fixture is installed on the inner roof wall of described plenum chamber, and the top of described damping homogenizing plate is installed on the fixture of described top by bolts and nuts.
7. a kind of negative pressure weighing room according to claim 6, it is characterized in that: described top fixture is the tubulose of hollow, the bottom surface of described top fixture has the elongated sliding tray extended along described plenum chamber length direction, and described bolt is also tight through being connected with described nut thread after the top mounting holes of described sliding tray, described damping homogenizing plate.
8. a kind of negative pressure weighing room according to claim 7, it is characterized in that: described damping current equalizer also comprises alignment pin, on the two side of described top fixture, symmetry is laid with some dowel holes, after the top of described damping homogenizing plate and described top fixture are in place, described alignment pin inserts a pair dowel hole being positioned at the front side of described bolt.
9. a kind of negative pressure weighing room according to claim 7, it is characterized in that: the bottom of described rear channels is provided with just effect and medium effeciency filter, the top of described just effect and medium effeciency filter is provided with centrifugal blower, centrifugal fan air outlet connects the air intake of described plenum chamber by air-supply airduct, and the anterior air outlet of described plenum chamber installs air draft high efficiency particulate air filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520702338.1U CN205012712U (en) | 2015-09-11 | 2015-09-11 | Negative -pressure weighing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520702338.1U CN205012712U (en) | 2015-09-11 | 2015-09-11 | Negative -pressure weighing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205012712U true CN205012712U (en) | 2016-02-03 |
Family
ID=55211322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520702338.1U Withdrawn - After Issue CN205012712U (en) | 2015-09-11 | 2015-09-11 | Negative -pressure weighing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205012712U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178645A (en) * | 2015-09-11 | 2015-12-23 | 无锡零界净化设备有限公司 | Negative pressure weighing chamber |
-
2015
- 2015-09-11 CN CN201520702338.1U patent/CN205012712U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178645A (en) * | 2015-09-11 | 2015-12-23 | 无锡零界净化设备有限公司 | Negative pressure weighing chamber |
| CN105178645B (en) * | 2015-09-11 | 2017-12-12 | 无锡零界净化设备股份有限公司 | Negative pressure weighing room |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105178645A (en) | Negative pressure weighing chamber | |
| CN209991595U (en) | Air conditioner air deflector air outlet structure capable of avoiding condensation and air conditioner air deflector | |
| CN205012712U (en) | Negative -pressure weighing chamber | |
| CN105091087A (en) | Air conditioner indoor unit with two heat exchangers | |
| CN104807077A (en) | Indoor unit of air conditioner | |
| AU2017265070A1 (en) | Air outlet for temperature controlling a room | |
| US3185069A (en) | Air distribution devices | |
| FI94670C (en) | Air distribution device | |
| US2621578A (en) | Adjustable air distributor | |
| CN204629949U (en) | The ducting assembly of floor air conditioner and floor air conditioner | |
| CN203857578U (en) | Air conditioner | |
| CN206469347U (en) | Vertical air-conditioner indoor unit and air-conditioning | |
| CN208398459U (en) | A kind of air channel structure and its automatic vending machine for cabinet body | |
| CN202057132U (en) | Air deflector and refrigerator with same | |
| CN203857569U (en) | Air conditioner indoor unit with two heat exchangers | |
| CN105091118A (en) | Air conditioner | |
| JP3829293B2 (en) | Air blowing device | |
| JP3708259B2 (en) | Air outlet for under floor air conditioning | |
| CN105091086A (en) | Air conditioner | |
| CN208458222U (en) | A kind of volute tongue structure and air conditioner | |
| JP2017172840A (en) | Outlet device | |
| US3065684A (en) | Air distributor | |
| KR200453512Y1 (en) | Variable discharge type underfloor swirl diffuser | |
| CN108302618B (en) | New fan | |
| CN111219785B (en) | Air inlet and outlet structure of air conditioner and air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214125 Jiangsu City, Wuxi province Binhu District, Taihu City, the new economic Park Patentee after: Wuxi Lingjie cleaning equipment Limited by Share Ltd Address before: 214125 Jiangsu City, Wuxi province Binhu District, Taihu City, the new economic Park Patentee before: Wuxi zero boundary cleaning equipment Co., Ltd |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160203 Effective date of abandoning: 20171212 |