CN216206915U - Protection device for preventing cross contamination for negative pressure weighing - Google Patents
Protection device for preventing cross contamination for negative pressure weighing Download PDFInfo
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- CN216206915U CN216206915U CN202122314025.7U CN202122314025U CN216206915U CN 216206915 U CN216206915 U CN 216206915U CN 202122314025 U CN202122314025 U CN 202122314025U CN 216206915 U CN216206915 U CN 216206915U
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- filter
- negative pressure
- protection device
- explosion
- control cabinet
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Abstract
The utility model discloses a cross-contamination prevention protection device for negative pressure weighing, which comprises a control cabinet, wherein the inner side of the control cabinet is provided with a flow dispersing plate, vent holes are arranged on the flow dispersing plate, the outer side of the flow dispersing plate is provided with a filter, one side of the filter, which is far away from the control cabinet, is provided with an explosion-proof fan, an exhaust air pipe is communicated between the explosion-proof fan and the filter, and the explosion-proof fan is communicated outside a window. Through the mode, the weighing device effectively ensures the stable environment of weighing work and effectively prevents the cross contamination of powder materials.
Description
Technical Field
The utility model relates to the technical field of protection devices, in particular to a protection device for negative pressure weighing, which can prevent cross contamination.
Background
Powder solid material weighs the partial shipment operation usually in open environment, and personnel and environment lack protection protective measures, can influence the product quality to a certain extent, and the production environment receives the pollution, and the dust flies upward, even has harm to personnel.
The protection device is used for providing a weighing environment for subpackaging the powdery solid materials and ensuring the orderly subpackaging and weighing of the powdery solid materials in the working area.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a protection device for negative pressure weighing, which can prevent cross contamination, effectively ensure the stable environment of the weighing work and effectively prevent the cross contamination of powder materials.
In order to solve the technical problems, the utility model adopts a technical scheme that: the protection device comprises a control cabinet, wherein the inner side of the control cabinet is provided with a flow dispersing plate, vent holes are arranged on the flow dispersing plate, a filter is arranged on the outer side of the flow dispersing plate, one side of the filter, which is far away from the control cabinet, is provided with an explosion-proof fan, an exhaust air pipe is communicated between the explosion-proof fan and the filter, and the explosion-proof fan is communicated to the outside of a window.
Preferably, the filter comprises a primary filter and a high-efficiency filter which are arranged in sequence.
Preferably, a pressure difference meter is arranged in front of and behind the filter.
Preferably, the primary filter and the high-efficiency filter both adopt bag-in and bag-out filters.
Preferably, one side of the control cabinet is provided with a soft water interface and a nitrogen interface.
Preferably, an explosion-proof lamp is arranged above the control cabinet.
Preferably, the explosion-proof fan is a variable-frequency explosion-proof fan.
Preferably, the control cabinet is made of SS304 stainless steel.
The utility model has the beneficial effects that: according to the protection device for negative pressure weighing, which is capable of preventing cross contamination, air flow is discharged out of a window from a control cabinet, a flow dispersing plate, a primary filter, a high-efficiency filter and an exhaust pipe in a horizontal flow air exhaust mode and is combined with a variable-frequency explosion-proof fan to provide variable-frequency power, a negative pressure system is formed in an operation cabinet area, dust flying of powdery solid materials in the weighing process is effectively reduced, cross contamination of the powdery solid materials is reduced, the structure is simple, and the practicability is high.
Drawings
FIG. 1 is a schematic structural diagram of a protective device for negative pressure weighing for preventing cross contamination according to the present invention;
FIG. 2 is a schematic view of the structure of a diffuser plate in the control cabinet of the present invention;
the parts in the drawings are numbered as follows:
1. a control cabinet; 2. a flow dispersing plate; 3. a vent hole; 4. a primary filter; 5. a high efficiency filter; 6. an explosion-proof fan; 7. an air exhaust duct; 8. a differential pressure gauge; 9. a soft water interface; 10. a nitrogen interface; 11. explosion-proof lamps and lanterns.
Detailed Description
The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.
Example (b):
as shown in fig. 1 and 2, a protection device for negative pressure weighing for preventing cross contamination comprises a control cabinet 1, the control cabinet 1 is made of SS304 stainless steel and can resist common organic solvents, the inner side of the control cabinet 1 is provided with a flow dispersing plate 2, vent holes 3 are arranged on the flow dispersing plate 2, a filter is arranged on the outer side of the flow dispersing plate 2, one side of the filter, which is far away from the control cabinet 1, is provided with an explosion-proof fan 6, an exhaust air pipe 7 is communicated between the explosion-proof fan 6 and the filter, the explosion-proof fan 6 is communicated to the outside of a window, and the exhaust air direction of the protection device adopts a horizontal flow mode and is discharged to the outside from the flow dispersing plate through the filter and the exhaust air pipe.
As shown in fig. 1 and 2, the filter includes primary filter 4 and high efficiency filter 5 that set gradually, and primary filter 4 and high efficiency filter 5 all adopt the bag to advance the bag and go out the filter for gradient double filtration, change simultaneously/easy maintenance is swift, and is further, is provided with differential pressure table 8 around the filter, and the intuitionally judges whether there is the jam between the filter.
As shown in fig. 1 and fig. 2, the explosion-proof fan 6 is a variable-frequency explosion-proof fan, and combines with the front exhaust air pipe and the diffuser plate, so as to form a negative pressure system in the operating cabinet area, thereby effectively reducing the cross contamination caused by dust flying in the weighing process of powdery solid materials, and simultaneously adjusting the negative pressure according to the working requirement, further, one side of the operating cabinet 1 is provided with a soft water interface 9 and a nitrogen interface 10 for assisting the cleaning and purging of products, and meanwhile, an explosion-proof lamp 11 is arranged above the operating cabinet 1 for improving the brightness of the working area.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (8)
1. The utility model provides a prevent cross contamination's negative pressure and weigh and use protection device which characterized in that: the air-conditioning system is characterized by comprising a control cabinet (1), wherein the inner side of the control cabinet (1) is provided with a flow dispersing plate (2), vent holes (3) are arranged on the flow dispersing plate (2), a filter is arranged on the outer side of the flow dispersing plate (2), one side of the filter, which is far away from the control cabinet (1), is provided with an explosion-proof fan (6), an air exhaust pipe (7) is communicated between the explosion-proof fan (6) and the filter, and the explosion-proof fan (6) is communicated to the outside of a window.
2. The protection device for negative pressure weighing of claim 1, which is characterized in that: the filter comprises a primary filter (4) and a high-efficiency filter (5) which are arranged in sequence.
3. The protection device for negative pressure weighing of claim 2, which is characterized in that: and pressure difference meters (8) are arranged in front of and behind the filter.
4. The protection device for negative pressure weighing of claim 2, which is characterized in that: the primary filter (4) and the high-efficiency filter (5) both adopt bag-in and bag-out filters.
5. The protection device for negative pressure weighing of claim 1, which is characterized in that: one side of the control cabinet (1) is provided with a soft water interface (9) and a nitrogen interface (10).
6. The protection device for negative pressure weighing of claim 5, which is characterized in that: an explosion-proof lamp (11) is arranged above the control cabinet (1).
7. The protection device for negative pressure weighing of claim 1, which is characterized in that: the anti-explosion fan (6) adopts a variable-frequency anti-explosion fan.
8. The protection device for negative pressure weighing of claim 1, which is characterized in that: the control cabinet (1) is made of SS304 stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122314025.7U CN216206915U (en) | 2021-09-24 | 2021-09-24 | Protection device for preventing cross contamination for negative pressure weighing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122314025.7U CN216206915U (en) | 2021-09-24 | 2021-09-24 | Protection device for preventing cross contamination for negative pressure weighing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216206915U true CN216206915U (en) | 2022-04-05 |
Family
ID=80921073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122314025.7U Active CN216206915U (en) | 2021-09-24 | 2021-09-24 | Protection device for preventing cross contamination for negative pressure weighing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216206915U (en) |
-
2021
- 2021-09-24 CN CN202122314025.7U patent/CN216206915U/en active Active
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