CN203672473U - Negative pressure weighing cover - Google Patents
Negative pressure weighing cover Download PDFInfo
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- CN203672473U CN203672473U CN201420033942.5U CN201420033942U CN203672473U CN 203672473 U CN203672473 U CN 203672473U CN 201420033942 U CN201420033942 U CN 201420033942U CN 203672473 U CN203672473 U CN 203672473U
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- negative pressure
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- blower fan
- cabinet
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Abstract
The utility model discloses a negative pressure weighing cover including a cabinet, a primary filter, a medium-efficiency filter, a high-efficiency filter, a flow equalizing film, a static pressure cabinet, a blower fan, an air return window, an adjustable window, and a flexible pipe. A working area, a blower fan casing, an air return casing, and an air outlet casing are arranged in the cabinet, the air outlet casing is arranged above the working area and the blower fan casing and is arranged at an interval, the air return casing is arranged under the working area, the blower fan casing and the working area are horizontally arranged at an interval, the blower fan is arranged at the bottom inside the blower fan casing, the high-efficiency filter, the flow equalizing film, and the static pressure cabinet are arranged in the air outlet casing, the adjustable window is arranged in one side wall of the air outlet casing, the primary filter and the medium-efficiency filter are arranged in the air return casing, the air return window is arranged in one side wall of the air return casing, the flexible pipe extends in the vertical direction, the blower fan is connected with the static pressure cabinet via the flexible pipe, the flow equalizing film is arranged at the bottom of the static pressure cabinet, and the high-efficiency filter is arranged between the adjustable window and the static pressure cabinet. The working area inside the negative pressure weighing cover generates negative pressure to prevent dust from flying.
Description
Technical field
The utility model relates to one and medicine production equipment, relates in particular to a kind of negative pressure and weighs cover.
Background technology
The prior art relevant to the utility model can reference, on November 20th, 2013 disclosed CN203298849U Chinese patent, it discloses a kind of portable ointment negative pressure and has weighed cover.
It is a kind of for special Local Purification equipment in place such as pharmacy, microbe research and scientific experiments that negative pressure weighs cover, it provides a kind of one-way gas flow, part pure air circulates in workspace, part is expelled near zone, make workspace produce negative pressure, prevent cross pollution, for ensureing the high-cleanness, high environment of workspace.
In equipment, carry out that dust, reagent weigh, packing, can control dust, reagent excessive, raise up, prevent dust, the inhalation hazard of reagent to human body, also avoid the cross pollution of dust, reagent, the safety of protection external environment and indoor occupant.Weigh operating area by ten thousand grades of vertical laminar flow ISO7(NF, EN, ISO14644-1) protection.Requirement according to FDA and the GMP of European Union and Chinese GMP designs.
Along with 2010 editions GMP revised editions (the 52 article, 53), to weighing the requirement of operating area; weigh to cover to become and in toilet, carry out dust, reagent weighs, packing; controlled powder process dirt; reagent is excessive, raises up, and prevents dust; the inhalation hazard of reagent to human body; also avoid dust, the cross pollution of reagent, the safety of protection external environment and indoor occupant.
In view of above-mentioned defect, be necessary to design in fact a kind of improved negative pressure and weigh cover.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of negative pressure of vertical way flow to weigh cover.
For solving the problems of the technologies described above, the technical solution of the utility model is:
Negative pressure weighs a cover, and it comprises cabinet, roughing efficiency air filter, medium effeciency filter, high efficiency particulate air filter, current-sharing film, plenum chamber, blower fan, return wind transom, regulate window and flexible pipe, in described cabinet, there is workspace, fan box, return air casing and air-out casing, top interval that described air outlet box body is positioned at workspace and fan box arrange, described air-intaking box body be positioned at workspace under, and described fan box and workspace are respectively between left and right every setting, described blower fan is arranged on the bottom in fan box, described high efficiency particulate air filter, current-sharing film and plenum chamber are arranged in air-out casing, described adjusting window is arranged on a sidewall of air-out casing, described roughing efficiency air filter and medium effeciency filter are arranged in return air casing, described return wind transom is arranged on a sidewall of return air casing, described flexible pipe is upper extension vertically, and described blower fan is connected with plenum chamber by flexible pipe, described current-sharing film is positioned at the bottom of plenum chamber, and described high efficiency particulate air filter is arranged on and regulates between window and plenum chamber.
Adopt technique scheme, the utility model beneficial effect is: due to vertically upper extension of flexible pipe, and described blower fan is connected with plenum chamber by flexible pipe, negative pressure weighs cover inside a kind of vertical way flow is provided, and part pure air circulates in workspace, the outer row of part, make perform region produce negative pressure, to prevent dust, reagent weighs, when packing, reagent is excessive, the situation that dust raises up.
The utility model further improves as follows:
Further, between described workspace and return air casing, be provided with working plate, on described working plate, be provided with the punching that runs through along the vertical direction working plate.Flowing of air-flow is convenient in the setting of punching.
Further, described roughing efficiency air filter is positioned at the top of medium effeciency filter and arranges with medium effeciency filter interval.Top interval that roughing efficiency air filter is positioned at medium effeciency filter arrange, and air can be filtered successively.
Further, a part for described blower fan is positioned at fan box, and another part of described blower fan is positioned at return air casing.Blower fan is arranged on the volume that has reduced cabinet in two casings.
Further, be also provided with liquid bath efficient purifier in described plenum chamber, described liquid bath efficient purifier is positioned at the top of current-sharing film.Liquid bath efficient purifier the further air that purified is set.
Further, a sidewall of described cabinet is provided with at return wind transom and regulates the door-plate between window, is provided with five hole waterproof connectors on described door-plate.In negative pressure weighs and covers, with water proof and dust proof socket, can be weighing apparatus equipment external power supply is provided, better ensure to claim the cleanliness factor in negative pressure amount cover.
Further, described door-plate is connected with cabinet by hinge, and the top of described door-plate is provided with door-inhale.Taking off of setting party's side door plate of hinge, the sealing of gas is convenient in the setting of door-inhale.
Further, on described door-plate, be also provided with the touch-screen for controlling blower fan.The setting party of touch-screen the control of man-machine interface.
Further, a side of described adjusting window is provided with differential pressure indicator, PAO fog emitter and PAO sampling thief.Differential pressure indicator, PAO fog emitter and PAO sampling thief are convenient to real-time monitoring.
Further, the below of described worktable is provided with access door.The setting of access door is convenient to negative pressure to weigh the easy to maintenance of when maintenance cover.
Brief description of the drawings
Fig. 1 is the schematic diagram that the utility model negative pressure weighs cover.
Fig. 2 is another schematic diagram that the utility model negative pressure weighs cover.
Fig. 3 is the interior gas flow fundamental diagram that negative pressure shown in Fig. 1 weighs cover.
Wherein: 1. cabinet, 2. roughing efficiency air filter, 3. medium effeciency filter, 4. high efficiency particulate air filter, 5. current-sharing film, 6. plenum chamber, 7. blower fan, 8. return wind transom, 9. regulate window, 10. workspace, 11. fan box, 12. return air casings, 13. air-out casings, 14. flexible pipes, 15. working plates, 151. punching, 16. liquid bath efficient purifiers, 17. door-plates, 18. 5 hole waterproof connectors, 19. touch-screens, 20. differential pressure indicators, 21.PAO fog emitter, 22.PAO sampling thief, 23. hinges, 24. door-inhales, 25. access doors, 26. differential pressure pickups, 27. air velocity transducers, 28. Cleaning luminaires, 29. scram buttons.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Weigh cover for meeting a kind of negative pressure of the present utility model as shown in Figure 1 to Figure 3, it comprises cabinet 1, roughing efficiency air filter 2, medium effeciency filter 3, high efficiency particulate air filter 4, current-sharing film 5, plenum chamber 6, blower fan 7, return wind transom 8, regulates window 9 and flexible pipe 14.
In cabinet 1, there is workspace 10, fan box 11, return air casing 12 and air-out casing 13.Top interval that air-out casing 13 is positioned at workspace 10 and fan box 11 arrange.Return air casing 12 be positioned at workspace 10 under, and fan box 11 with workspace 10 respectively between left and right every setting.Blower fan 7 is arranged on the bottom in fan box 11.High efficiency particulate air filter 4, current-sharing film 5 and plenum chamber 6 are arranged in air-out casing 13.Regulate window 9 to be arranged on a sidewall of air-out casing 13, roughing efficiency air filter 2 and medium effeciency filter 3 are arranged in return air casing 12, and return wind transom 8 is arranged on a sidewall of return air casing 12.Flexible pipe 14 is upper extension vertically, and blower fan 7 is connected with plenum chamber 6 by flexible pipe 14.Current-sharing film 5 is positioned at the bottom of plenum chamber 6, and high efficiency particulate air filter 4 is arranged on and regulates between window 9 and plenum chamber 6.
Between workspace 10 and return air casing 12, be provided with working plate 15, and on working plate 15, be provided with the punching 151 that runs through along the vertical direction working plate.Roughing efficiency air filter 2 is positioned at the top of medium effeciency filter 3 and arranges with medium effeciency filter 3 intervals.A part for blower fan 7 is positioned at fan box 11, and another part of blower fan 7 is positioned at return air casing 12.In plenum chamber 6, be also provided with liquid bath efficient purifier 16, and liquid bath efficient purifier 16 is positioned at the top of current-sharing film 5.One sidewall of cabinet 1 is provided with at return wind transom 8 and regulates the door-plate 17 between window 9, and on door-plate 17, is provided with five hole waterproof connectors 18.On door-plate 17, be also provided with the touch-screen 19 for controlling blower fan.Regulate a side of window 9 to be provided with differential pressure indicator 20, PAO fog emitter 21 and PAO sampling thief 22.Door-plate 17 is connected with cabinet 1 by hinge 23, and the top of door-plate 17 is provided with door-inhale 24.The below of worktable 17 is provided with access door 25.
Negative pressure weighs cover and controls the running in it by PLC.Negative pressure weighs cover and is also provided with differential pressure pickup 26, air velocity transducer 27, Cleaning luminaire 28 and scram button 29.Weighing cover inside carries Cleaning luminaire 28 and throws light on, the enough illumination while meeting work.
Compared with prior art, the utility model is due to vertically upper extension of flexible pipe 14, and blower fan 7 is connected with plenum chamber 6 by flexible pipe 14, negative pressure weighs cover inside a kind of vertical way flow is provided, and part pure air circulates in workspace, the outer row of part, make perform region produce negative pressure, to prevent dust, reagent weighs, when packing, reagent is excessive, the situation that dust raises up.Negative pressure weighs cover owing to regulating the size that the adjustable exhaust air rate of exhaust system is set of window 9, to meet different operating, and the requirement of the weighing of different article, versatility increases greatly.In weighing cover, with five hole waterproof connectors 18, can be weighing apparatus equipment external power supply is provided, better ensure the cleanliness factor in weighing cover.
The utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done, within all dropping on protection domain of the present utility model.
Claims (10)
1. a negative pressure weighs cover, and it comprises cabinet, roughing efficiency air filter, medium effeciency filter, high efficiency particulate air filter, current-sharing film, plenum chamber, blower fan, return wind transom, regulate window and flexible pipe, it is characterized in that: in described cabinet, there is workspace, fan box, return air casing and air-out casing, top interval that described air outlet box body is positioned at workspace and fan box arrange, described air-intaking box body be positioned at workspace under, and described fan box and workspace are respectively between left and right every setting, described blower fan is arranged on the bottom in fan box, described high efficiency particulate air filter, current-sharing film and plenum chamber are arranged in air-out casing, described adjusting window is arranged on a sidewall of air-out casing, described roughing efficiency air filter and medium effeciency filter are arranged in return air casing, described return wind transom is arranged on a sidewall of return air casing, described flexible pipe is upper extension vertically, and described blower fan is connected with plenum chamber by flexible pipe, described current-sharing film is positioned at the bottom of plenum chamber, and described high efficiency particulate air filter is arranged on and regulates between window and plenum chamber.
2. negative pressure as claimed in claim 1 weighs cover, it is characterized in that: between described workspace and return air casing, be provided with working plate, be provided with the punching that runs through along the vertical direction working plate on described working plate.
3. negative pressure as claimed in claim 2 weighs cover, it is characterized in that: described roughing efficiency air filter is positioned at the top of medium effeciency filter and arranges with medium effeciency filter interval.
4. negative pressure as claimed in claim 3 weighs cover, it is characterized in that: a part for described blower fan is positioned at fan box, and another part of described blower fan is positioned at return air casing.
5. negative pressure as claimed in claim 4 weighs cover, it is characterized in that: in described plenum chamber, be also provided with liquid bath efficient purifier, described liquid bath efficient purifier is positioned at the top of current-sharing film.
6. negative pressure as claimed in claim 5 weighs cover, it is characterized in that: a sidewall of described cabinet is provided with at return wind transom and regulates the door-plate between window, is provided with five hole waterproof connectors on described door-plate.
7. negative pressure as claimed in claim 6 weighs cover, it is characterized in that: described door-plate is connected with cabinet by hinge, and the top of described door-plate is provided with door-inhale.
8. negative pressure as claimed in claim 7 weighs cover, it is characterized in that: on described door-plate, be also provided with the touch-screen for controlling blower fan.
9. negative pressure as claimed in claim 8 weighs cover, it is characterized in that: a side of described adjusting window is provided with differential pressure indicator, PAO fog emitter and PAO sampling thief.
10. negative pressure as claimed in claim 9 weighs cover, it is characterized in that: the below of described worktable is provided with access door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033942.5U CN203672473U (en) | 2014-01-20 | 2014-01-20 | Negative pressure weighing cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420033942.5U CN203672473U (en) | 2014-01-20 | 2014-01-20 | Negative pressure weighing cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203672473U true CN203672473U (en) | 2014-06-25 |
Family
ID=50968755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420033942.5U Expired - Fee Related CN203672473U (en) | 2014-01-20 | 2014-01-20 | Negative pressure weighing cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203672473U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964415A (en) * | 2015-07-10 | 2015-10-07 | 苏州华达仪器设备有限公司 | Flow rectifier in negative-pressure weighing chamber |
| CN105178645A (en) * | 2015-09-11 | 2015-12-23 | 无锡零界净化设备有限公司 | Negative pressure weighing chamber |
| CN104499735B (en) * | 2014-08-12 | 2017-03-15 | 苏州悠远环境科技有限公司 | A kind of negative pressure weighs cover |
| CN106840350A (en) * | 2016-12-30 | 2017-06-13 | 天津市圣莱特净化设备有限公司 | A kind of novel negative pressure weighs cover |
| CN106989809A (en) * | 2017-05-04 | 2017-07-28 | 东莞市联洲知识产权运营管理有限公司 | One kind weighs cover |
| CN107036700A (en) * | 2017-05-25 | 2017-08-11 | 京华建设科技有限公司 | A kind of weighing cover for being convenient for changing roughing efficiency air filter |
| CN108151856A (en) * | 2017-11-06 | 2018-06-12 | 江阴市索菲电子科技有限公司 | A kind of dust-proof water-proof electronic balance |
| 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 |
-
2014
- 2014-01-20 CN CN201420033942.5U patent/CN203672473U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499735B (en) * | 2014-08-12 | 2017-03-15 | 苏州悠远环境科技有限公司 | A kind of negative pressure weighs cover |
| CN104964415A (en) * | 2015-07-10 | 2015-10-07 | 苏州华达仪器设备有限公司 | Flow rectifier in negative-pressure weighing chamber |
| 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 |
| CN106840350A (en) * | 2016-12-30 | 2017-06-13 | 天津市圣莱特净化设备有限公司 | A kind of novel negative pressure weighs cover |
| CN106989809A (en) * | 2017-05-04 | 2017-07-28 | 东莞市联洲知识产权运营管理有限公司 | One kind weighs cover |
| CN106989809B (en) * | 2017-05-04 | 2019-04-19 | 新昌县彭诚农业科技有限公司 | A kind of weighing cover |
| CN107036700A (en) * | 2017-05-25 | 2017-08-11 | 京华建设科技有限公司 | A kind of weighing cover for being convenient for changing roughing efficiency air filter |
| 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 |
| CN108151856A (en) * | 2017-11-06 | 2018-06-12 | 江阴市索菲电子科技有限公司 | A kind of dust-proof water-proof electronic balance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20220120 |