CN218065233U - Modular sealed negative pressure weighing chamber - Google Patents
Modular sealed negative pressure weighing chamber Download PDFInfo
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- CN218065233U CN218065233U CN202221042263.5U CN202221042263U CN218065233U CN 218065233 U CN218065233 U CN 218065233U CN 202221042263 U CN202221042263 U CN 202221042263U CN 218065233 U CN218065233 U CN 218065233U
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Abstract
The utility model relates to a room is weighed to sealed negative pressure of modular in toilet's system, including outer box and air supply box, outer box divide into operation area and return air district through the closing plate, set up air supply box body formation air supply district in the return air district, the return air district has centrifugal fan, the top of operation area is fixed with the fixed bolster, air supply box erects to have the clearance between fixed bolster upper end back and fixed bolster, an air that the seam crossing of centrifugal fan will air supply district and operation area revealed draws back to the return air district through the clearance, the top of operation area is equipped with the outer air exit of outer container of orientation. Through the pressure difference of each area, the negative pressure sealing of air supply to the operation area is realized through the gap at the interaction part, and the influence on the operation environment caused by the leakage to the operation area is prevented; through the modularized design, the installation is more convenient by combining the negative pressure sealing principle, and the system is safer and more stable.
Description
Technical Field
The utility model belongs to the technical field of the pharmaceutical equipment technique and specifically relates to a room is weighed to sealed negative pressure of modular in toilet system.
Background
In recent years, the pharmaceutical industry has been rapidly developed, especially in the fields of biological cells and the like, and corresponding regulatory requirements are set in the country to perfect and regulate the design and use of related products in the field. Due to the particularities of the pharmaceutical industry, good Manufacturing Practice (GMP) requires that the risk of contamination, cross-contamination, and confusion, errors in the pharmaceutical production process be minimized. Requirements such as symmetrical amount batching go on under the environment of negative pressure in novel toilet system, prevent to cause cross contamination in the operation, the negative pressure weighing room can provide the negative pressure environment of stabilizing the uniflow, and how to guarantee that the negative pressure environment does not have the design and the manufacturing accuracy requirement of revealing to equipment are higher. Traditional negative pressure weighing room is through the on-the-spot concatenation after the sheet metal component preparation, and the installation of high efficiency filter is the liquid tank formula of using, but still has a lot of leakage points with the fixed of peripheral wallboard, leads to the difficult one-time pass of leak hunting test. How to facilitate installation and ensure that no leakage occurs in an operating area? The safest mode still realizes through configuration optimization, beats gluey, multichannel sealed all has the risk point to exist.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: in order to overcome the defects in the prior art, a modular sealed negative pressure weighing chamber is provided.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a room is weighed to sealed negative pressure of modular, including outer box and air feed box, outer box divide into operation area and return air district through the closing plate, set up air supply box in the return air district and form the air feed area, the return air district has centrifugal fan, the top of operation area is fixed with the fixed bolster, the air supply box erects to be had the clearance between fixed bolster after locating the fixed bolster upper end and the fixed bolster, an air that is used for centrifugal fan to reveal the seam crossing in air feed area and operation area is drawn back to the return air district through the clearance, the top of operation area is equipped with towards the outer air exit of outer box.
The air supply area is provided with a high-efficiency filter, the air return area is provided with a primary and secondary-efficiency filter,
the bottom of the sealing plate is provided with a return air inlet, the primary and intermediate-efficiency filter is arranged at an inlet of a return air area connected with the return air inlet, an outlet of the return air area is arranged at an air outlet of a fan connected with the air supply box body, and the high-efficiency filter is arranged at an air supply opening connected with the operation area;
the top of operation district is equipped with the membrane ware that flow equalizes, and the below of air exit is located to the membrane ware that flow equalizes.
The air that centrifugal fan passes through the inspiratory operation zone in return air inlet filters through just well effect filter, and the air after the filtration is discharged to the air-supply box internal through centrifugal fan's fan air outlet, then filters through high efficiency filter, and the air after final filtration passes through the supply-air outlet and gets into the operation zone, and the most air that gets into the operation zone passes through the membrane ware that flow equalizes at operation zone top and discharges downwards, and the sub-part air passes through the air exit and discharges outside to the outer container body, makes and weighs the room and wholly maintains the negative pressure.
The centrifugal fan arranged in the air return area supplies air to the air supply area, so that the internal pressures of the air supply area, the operation area and the air return area are sequentially reduced, and the negative pressure sealing of the air supply of the operation area is realized at the interaction part through a gap through the pressure difference of all areas, thereby preventing the air from leaking to the operation area and influencing the environment of the operation area; the negative pressure is sealed, and the leakage problem is structurally solved. Even if leakage points appear at the joint of the air supply area and the operation area, leaked air which is not filtered by the high-efficiency filter can be pumped back by the centrifugal fan to be sent to the air supply box body again instead of being discharged into the operation area below the flow equalizing membrane device, so that the cleanness of the air in the operation area is ensured.
Preferably, the air supply box body is in a modular design, is designed according to the size of a standard efficient filter, adopts a standardized design, reduces the manufacturing period and cost on one hand, and is convenient for equipment installation and later maintenance on the other hand.
Further, centrifugal fan place on fan support, centrifugal fan has the tuber pipe through tuber pipe flexible joint connection, fan air outlet department is located to the tuber pipe other end, the bottom in the fan support is fixed in the return air zone.
Furthermore, a switch panel and an air speed sensor are arranged above the air return opening of the sealing plate.
The utility model has the advantages that: through the modularized design, the installation is more convenient by combining the negative pressure sealing principle, and the system is safer and more stable. The weighing room is divided into three parts, namely an operation area, a return air area and an air supply box body, the air supply box body is arranged in the return air area, so that the leakage problem can be solved, and even if the leakage exists, the leakage part can be also pumped back to the air supply box body by the centrifugal fan and cannot be leaked to the operation area. The utility model discloses a room is weighed to negative pressure both can satisfy the requirement of article production management standard (GMP) and technology, can also control the safety of high accuracy product.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of the wind direction of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a block diagram of the present invention.
Reference numbers in the figures: 1. the air conditioner comprises a fixed support, 2 parts of an outer box body, 3 parts of an air supply box body, 4 parts of a high-efficiency filter, 5 parts of an air pipe, 6 parts of an air pipe soft joint, 7 parts of a centrifugal fan, 8 parts of a fan support, 9 parts of a primary-medium-efficiency filter, 10 parts of a switch panel, 11 parts of an air speed sensor, 12 parts of a flow equalizing membrane device, 13 parts of an air supply outlet, 14 parts of an air return inlet, 15 parts of a fan air outlet, 16 parts of an air outlet, 2-1 parts of an operation area, 2-2 parts of an air return area and 2-3 parts of an air supply area.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The modular sealed negative pressure weighing room shown in the figures 1-4 comprises an outer box body 2 and an air supply box body 3, wherein the outer box body 2 is divided into an operation area 2-1 and an air return area 2-2 through a sealing plate, the air supply box body 3 is arranged in the air return area 2-2 to form the air supply area 2-3, the air return area 2-2 is provided with a centrifugal fan 7, a fixed support 1 is fixed at the top end of the operation area 2-1, the air supply box body 3 is erected at the upper end of the fixed support 1 and then has a gap with the fixed support 1, the centrifugal fan 7 is used for pumping air leaked from a joint of the air supply area 2-3 and the operation area 2-1 back to the air return area 2-2 through the gap, and the top of the operation area 2-1 is provided with an air outlet 16 facing the outside the outer box body 2.
The air supply area 2-3 is provided with a high-efficiency filter 4, the air return area 2-2 is provided with a primary and intermediate-efficiency filter 9,
the bottom of the sealing plate is provided with a return air inlet 14, the primary and intermediate efficiency filter 9 is arranged at an inlet of a return air area 2-2 connected with the return air inlet 14, an outlet of the return air area 2-2 is arranged at an air outlet 15 of a fan connected with the air supply box body 3, and the high efficiency filter 4 is arranged at an air supply outlet 13 connected with the operation area 2-1.
The top of the operation area 2-1 is provided with a flow equalizing membrane 12, and the flow equalizing membrane 12 is arranged below the air outlet 16.
The air of the operation area 2-1 sucked by the centrifugal fan 7 through the air return port 14 is filtered by the primary and secondary efficient filter 9, the filtered air is discharged into the air supply box body 3 through the fan air outlet 15 of the centrifugal fan 7 and then filtered by the high-efficiency filter 4, the finally filtered air enters the operation area 2-1 through the air supply port 13, most of the air entering the operation area 2-1 is discharged downwards through the flow equalizing membrane 12 at the top of the operation area 2-1, and a small part of the air is discharged out of the box body 2 through the air outlet 16, so that the negative pressure of the whole weighing chamber is maintained. When the air purifier works normally, about 10% of air is discharged out of the outer box body 2 through the air outlet 16, and negative pressure of an external clean room in the operation area 2-1 can be ensured, so that a clean environment is generated, and the safety of indoor personnel and the environment is ensured.
The centrifugal fan 7 arranged in the air return area 2-2 and used for supplying air to the air supply area 2-3 enables the internal pressure of the air supply area 2-3, the internal pressure of the operation area 2-2 and the internal pressure of the air return area 2-1 to be sequentially reduced. Even if leakage points appear at the joint of the air supply area and the operation area, leaked air which is not filtered by the high-efficiency filter can be pumped back by the centrifugal fan to be sent to the air supply box body again instead of being discharged into the operation area below the flow equalizing membrane device, so that the cleanness of the air in the operation area is ensured.
Through the pressure difference of each area, the negative pressure sealing of air supply to the operation area is realized through the gap at the interaction part, and the air leakage to the operation area is prevented, so that the environment of the operation area is prevented from being influenced; the negative pressure is sealed, and the leakage problem is structurally solved.
The air supply box body adopts modular design, and is designed according to the size of a standard high-efficiency filter, and adopts standardized design, so that the manufacturing period and cost are reduced, and the equipment installation and later maintenance are facilitated.
The centrifugal fan 7 is placed on the fan support 8, the centrifugal fan 7 is connected with the air pipe 5 through the air pipe soft joint 6, the other end of the air pipe 5 is arranged at the fan air outlet 15, and the fan support 8 is fixed at the bottom in the air return area 2-2.
A switch panel 10 and an air speed sensor 11 are arranged above the air return opening 14 of the sealing plate.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides a room is weighed to modular sealed negative pressure which characterized in that: the air supply box comprises an outer box body (2) and an air supply box body (3), wherein the outer box body (2) is divided into an operation area (2-1) and an air return area (2-2) through a sealing plate, the air supply box body (3) is arranged in the air return area (2-2) to form the air supply area (2-3), the air return area (2-2) is provided with a centrifugal fan (7), a fixing support (1) is fixed to the top end of the operation area (2-1), the air supply box body (3) is erected in the upper end of the fixing support (1) and is provided with a gap between the air supply box body and the fixing support (1), the air leaked from the joint of the air supply area (2-3) and the operation area (2-1) is pumped back to the air return area (2-2) through the gap, and an air exhaust outlet (16) facing the outside the box body (2) is formed in the top of the operation area (2-1).
2. The modular sealed negative pressure weighing chamber of claim 1, wherein: the air supply area (2-3) is provided with a high-efficiency filter (4), the air return area (2-2) is provided with a primary and intermediate-efficiency filter (9),
the bottom of the sealing plate is provided with a return air inlet (14), the primary and intermediate efficiency filter (9) is arranged at an inlet of a return air area (2-2) connected with the return air inlet (14), an outlet of the return air area (2-2) is arranged at a fan air outlet (15) connected with the air supply box body (3), and the high efficiency filter (4) is arranged at an air supply outlet (13) connected with the operation area (2-1).
3. The modular sealed sub-atmospheric weighing chamber of claim 1, wherein: the top of the operation area (2-1) is provided with a flow equalizing membrane device (12), and the flow equalizing membrane device (12) is arranged below the air outlet (16).
4. The modular sealed sub-atmospheric weighing chamber of claim 1, wherein: the centrifugal fan (7) is placed on the fan support (8), the centrifugal fan (7) is connected with the air pipe (5) through the air pipe soft joint (6), the other end of the air pipe (5) is arranged at the fan air outlet (15), and the fan support (8) is fixed at the bottom in the air return zone (2-2).
5. The modular sealed sub-atmospheric weighing chamber of claim 1, wherein: a switch panel (10) and a wind speed sensor (11) are arranged above the air return opening (14) of the sealing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221042263.5U CN218065233U (en) | 2022-04-29 | 2022-04-29 | Modular sealed negative pressure weighing chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221042263.5U CN218065233U (en) | 2022-04-29 | 2022-04-29 | Modular sealed negative pressure weighing chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218065233U true CN218065233U (en) | 2022-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221042263.5U Active CN218065233U (en) | 2022-04-29 | 2022-04-29 | Modular sealed negative pressure weighing chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218065233U (en) |
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2022
- 2022-04-29 CN CN202221042263.5U patent/CN218065233U/en active Active
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