CN219632162U - Semi-enclosed air curtain fan housing - Google Patents
Semi-enclosed air curtain fan housing Download PDFInfo
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- CN219632162U CN219632162U CN202321149504.0U CN202321149504U CN219632162U CN 219632162 U CN219632162 U CN 219632162U CN 202321149504 U CN202321149504 U CN 202321149504U CN 219632162 U CN219632162 U CN 219632162U
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- pollution source
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- 238000007664 blowing Methods 0.000 claims abstract description 51
- 238000005192 partition Methods 0.000 claims abstract description 10
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 4
- 239000008397 galvanized steel Substances 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 abstract description 36
- 239000002912 waste gas Substances 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009467 reduction Effects 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 109
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000004134 energy conservation Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Ventilation (AREA)
Abstract
The utility model relates to a semi-enclosed air curtain fan housing, which comprises a box body enclosed on the outer side of a pollution source, wherein an air blowing chamber and an air suction chamber are separated from top to bottom in the box body through a partition plate, and openings for gas circulation are formed in the side walls of the air blowing chamber and the air suction chamber; the top of the air blowing chamber is provided with a blower in a matching way, the blower blows air flow out of an opening on the side wall of the air blowing chamber and forms an air curtain, and the air curtain blocks the emission of gas in a pollution source; an air pipe connector is arranged on the outer wall surface of the air suction chamber, the air pipe connector is connected with an exhaust gas collecting system, and the exhaust gas collecting system collects gas in a pollution source through an opening on the side wall of the air suction chamber. Through setting up box, baffle, the forced draught blower that encloses the pollution source, can form the air curtain in the pollution source top, block the gas diffusion that the pollution source released, can reduce induced air intake, can reduce local air intake by a wide margin to reduce the construction scale of waste gas collection and processing system, and reach energy saving and emission reduction effect.
Description
Technical Field
The utility model relates to the technical field of waste gas treatment, in particular to a semi-enclosed air curtain fan cover.
Background
The environment construction is the basic guarantee and important content of the overall development of the economy and society, and is the basis of the economic operation and the social development. Forty-five of the method for controlling atmospheric pollution in the people's republic of China: production and service activities for generating the exhaust gas containing volatile organic compounds should be performed in a closed space or in equipment, and pollution control facilities should be installed and used as prescribed; failing to seal, measures should be taken to reduce exhaust emissions. The method starts to be implemented in the year 2020, 7 and 1, and the volatile organic compound unstructured emission control standard (GB 37822-2019) clearly requires that the existing enterprises implement the material storage, transfer, conveying, technological processes, equipment and pipeline assemblies, open liquid level and unstructured emission tail gas collecting and treating system control requirement standards from the year 2020, 7 and 1. The improvement of the production process for airtight production is a fundamental way for solving the poison hazard, but inevitably there are production procedures which cannot be airtight.
In the prior art, aiming at the production procedure, the harmful gas can be trapped at the emission part of the harmful gas in a local induced draft mode, so that the harmful gas is not diffused to the surrounding environment, and a good working environment is created, thereby reducing the pollution to the environment. However, the local suction hood is required to induce a large amount of air suction, and has a large suction amount and low exhaust gas capturing efficiency, so that the exhaust gas treatment system is large in scale and high in investment cost and operation cost.
Disclosure of Invention
The inventor aims at the defects in the prior art, and provides a semi-enclosed air curtain fan cover, which can form an air curtain above a pollution source by arranging a box body, a partition plate and a blower for enclosing the pollution source, prevent gas released by the pollution source from diffusing, reduce induced air suction amount, and greatly reduce local suction amount on the premise of ensuring harmful gas trapping effect, thereby reducing the construction scale of an exhaust gas collecting and treating system and achieving the effects of energy conservation and emission reduction.
The technical scheme adopted by the utility model is as follows:
the semi-enclosed air curtain fan cover comprises a box body which is enclosed on the outer side of a pollution source, wherein an air blowing chamber and an air suction chamber are separated from top to bottom in the box body through a partition plate, and openings for gas circulation are formed in the side walls of the air blowing chamber and the air suction chamber;
the top of the air blowing chamber is provided with a blower in a matching way, the blower blows air flow out of an opening on the side wall of the air blowing chamber and forms an air curtain, and the air curtain blocks the emission of gas in a pollution source;
an air pipe connector is arranged on the outer wall surface of the air suction chamber and connected with an exhaust gas collecting system, and the exhaust gas collecting system collects gas in a pollution source through an opening on the side wall of the air suction chamber.
As a further improvement of the above technical scheme:
the air blowing chamber and the air suction chamber are isolated from each other through a partition plate.
The air blower adopts an axial flow fan.
The openings on the side walls of the air blowing chamber and the air suction chamber are in a slit shape or a hole shape.
The openings in the shape of the strip slits adopt transverse strip slits or vertical strip slits and are uniformly arranged on the side wall of the air blowing chamber or the air suction chamber.
The openings in the shape of holes adopt round holes or regular hexagonal holes and are uniformly arranged on the side wall of the air blowing chamber or the air suction chamber.
The box body is of a semi-surrounding structure, and the box body is made of galvanized steel plates, stainless steel plates, glass steel plates or plastic plates.
The air pipe interfaces are provided with a plurality of air pipe interfaces.
The air pipe connector is arranged on the side wall or the bottom of the air suction chamber.
The beneficial effects of the utility model are as follows:
the utility model has compact and reasonable structure and convenient operation, can effectively isolate the emission of gas in a pollution source by arranging the air blowing chamber, the air suction chamber, the air feeder and the opening, can effectively improve the air suction efficiency of the air suction chamber, and effectively reduce the local air suction amount, thereby reducing the construction scale of a waste gas collecting and treating system and achieving the effects of energy conservation and emission reduction.
The utility model also has the following advantages:
(1) According to the utility model, the blower and the blowing chamber are integrally assembled, a connecting pipeline is not required, the pipeline installation space is saved, and the cost is reduced; meanwhile, the start and stop of the air feeder can be flexibly controlled according to the actual working condition, and the running energy consumption is saved.
(2) The opening is provided with various shapes and specifications, and the corresponding opening shape can be rotated according to the actual working condition, so that the use flexibility of the air curtain air cover is improved.
(3) The side wall of the air blowing chamber is also provided with the wind direction guide plate in a matched mode, and the fixed type or movable type air blowing chamber can be used for adjusting the air blowing direction, so that the air blowing efficiency is improved.
(4) According to the utility model, the air curtain is formed by the blowing chamber, so that the air suction amount of the waste gas collecting system can be reduced, the construction scale of the waste gas collecting system can be reduced, and the construction cost and the operation and maintenance cost are reduced.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a plan view of the present utility model (the shape of the case in this figure is different from that in fig. 1).
FIG. 3 is a schematic view of the structure of the present utility model.
FIG. 4 is a schematic view of the structure of the present utility model when the opening is slit-shaped.
FIG. 5 is a schematic view of the structure of the present utility model when the opening is in the shape of a hole.
Wherein: 1. a case; 2. an air blowing chamber; 3. an air suction chamber; 4. a partition plate; 5. a blower; 6. an opening; 7. an air pipe interface; 8. a source of contamination.
Detailed Description
The following describes specific embodiments of the present utility model with reference to the drawings.
The structure and the function of the utility model are as follows:
as shown in fig. 1-5, a semi-enclosed air curtain fan cover comprises a box body 1 enclosed on the outer side of a pollution source 8, wherein an air blowing chamber 2 and an air suction chamber 3 are separated from top to bottom in the box body 1 through a partition plate 4, and openings 6 for gas circulation are formed in the side walls of the air blowing chamber 2 and the air suction chamber 3; the top of the blowing chamber 2 is provided with a blower 5 in a matching way, the blower 5 blows air flow out of an opening 6 on the side wall of the blowing chamber 2 and forms an air curtain, and the air curtain blocks the emission of gas in a pollution source 8; an air pipe connector 7 is arranged on the outer wall surface of the air suction chamber 3, the air pipe connector 7 is connected with an exhaust gas collecting system, and the exhaust gas collecting system collects gas in a pollution source 8 through an opening 6 on the side wall of the air suction chamber 3; the air blowing chamber 2 and the air suction chamber 3 are isolated from each other by a partition plate 4. The air blowing chamber 2 is positioned above the air suction chamber 3, and an opening 6 for gas circulation is arranged on the side wall of the box body 1, which is close to one side of the pollution source 8.
The direction of the arrow in fig. 3 indicates the flow direction of the gas.
The flow velocity field vector distribution of the air flow blown out by the air blowing chamber 2 can be calculated based on aerodynamics, the arrangement form of the openings 6 on the side wall of the air blowing chamber 2 and the positive pressure air volume required to be provided by the air blower 5 can be determined, so that the air flow blown out by the air blowing chamber 2 can form an effective air curtain partition to block the air diffusion in the pollution source 8.
The vector distribution of the flow velocity field of the air sucked into the air suction chamber 3 can be calculated based on aerodynamics, and the arrangement form of the openings 6 on the side wall of the air suction chamber 3 can be determined, so that the waste gas released by the recycling pollution source 8 is collected.
The air suction chamber 3 is connected into the waste gas collecting system through the air pipe connector 7, and negative pressure is formed inside the air suction chamber 3, so that harmful gas is trapped.
The shape of the box body 1 can be determined according to the shape of the pollution source 8 and the production operation mode, and the box body 1 is manufactured into a specific shape and specification on the premise of not influencing the production operation, so that the box body 1 can be well enclosed around the pollution source 8 emitting harmful gas.
The blower 5 is an axial flow blower. The specification parameters and the protection level of the axial flow fan are determined according to specific use requirements.
The axial flow blower integrated at the top of the blowing chamber 2 can suck ambient air into the blowing chamber 2, and then blow the sucked air out of the opening 6 on the side wall of the blowing chamber 2, and an air curtain is formed above the pollution source 8, so that harmful gas is effectively prevented from being dispersed into the surrounding environment.
The openings 6 on the side walls of the air blowing chamber 2 and the air suction chamber 3 are in a slit shape or a hole shape; the slit-shaped openings 6 are horizontal slits or vertical slits and are uniformly arranged on the side wall of the blowing chamber 2 or the air suction chamber 3; the openings 6 in the shape of holes are circular holes or regular hexagonal holes and are uniformly arranged on the side wall of the blowing chamber 2 or the air suction chamber 3. The specification shape of the holes or slits can be determined based on aerodynamic calculations, experimental tests or software simulations.
The side wall of the blowing chamber 2 above the opening 6 is provided with a wind direction guide plate in a matched mode, and the wind direction guide plate is fixed or movable and is used for adjusting the blowing direction.
The box body 1 is of a semi-surrounding structure, and the box body 1 is made of galvanized steel plates, stainless steel plates, glass steel plates or plastic plates. The box body 1 can be made of galvanized steel sheet, stainless steel sheet, glass fiber reinforced plastic sheet, plastic sheet and other materials meeting the requirements of the use environment according to the conditions of the open shape, production operation habit, installation environment and the like of the pollution source 8, and is customized into the special-shaped box body 1 with a non-fixed shape.
The air pipe interfaces 7 are provided with a plurality of air pipe interfaces; the air pipe joint 7 is arranged on the side wall or the bottom of the air suction chamber 3. The orientation, size and number of the air duct interfaces 7 are determined according to the actual installation conditions.
The working process of the utility model is as follows:
opening the blower 5, sucking air in the environment into the air blowing chamber 2 by the blower 5, and then blowing out the air in the air blowing chamber 2 through the opening 6 on the side wall of the air blowing chamber, so that an air curtain is formed above the pollution source 8, and the gas released by the pollution source 8 is prevented from being emitted to the surrounding environment;
the waste gas collecting system forms negative pressure in the air suction chamber 3 through the air pipe connector 7, and sucks and recovers the gas released by the pollution source 8 below the air curtain into the air suction chamber 3;
the gas released by the pollution source 8 is discharged after reaching the standard through the treatment of the waste gas collecting system.
According to the utility model, the air blowing chamber 2 is arranged above the air suction chamber 3, and the blower 5 is matched with the air blowing chamber, so that an air curtain can be formed above the pollution source 8, and the air diffusion released by the pollution source 8 is effectively blocked, so that the air suction efficiency of the air suction chamber 3 is improved, the harmful gas trapping efficiency is obviously improved, and the effects of energy conservation and emission reduction are achieved.
The above description is intended to illustrate the utility model and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the utility model.
Claims (9)
1. A semi-enclosed air curtain fan housing, characterized in that: the device comprises a box body (1) which is enclosed on the outer side of a pollution source (8), wherein the interior of the box body (1) is divided into an air blowing chamber (2) and an air suction chamber (3) from top to bottom through a partition board (4), and openings (6) for gas circulation are formed in the side walls of the air blowing chamber (2) and the air suction chamber (3);
the top of the blowing chamber (2) is provided with a blower (5) in a matching way, the blower (5) blows air flow out of an opening (6) on the side wall of the blowing chamber (2) and forms an air curtain, and the air curtain blocks the emission of gas in a pollution source (8);
an air pipe connector (7) is arranged on the outer wall surface of the air suction chamber (3), the air pipe connector (7) is connected with an exhaust gas collecting system, and the exhaust gas collecting system collects gas in a pollution source (8) through an opening (6) on the side wall of the air suction chamber (3).
2. A semi-enclosed air curtain as defined in claim 1 wherein: the blowing chamber (2) and the air suction chamber (3) are isolated from each other through a partition plate (4).
3. A semi-enclosed air curtain as defined in claim 1 wherein: the air blower (5) adopts an axial flow fan.
4. A semi-enclosed air curtain as defined in claim 1 wherein: the openings (6) on the side walls of the blowing chamber (2) and the air suction chamber (3) are in a slit shape or a hole shape.
5. A semi-enclosed air curtain as defined in claim 4 wherein: the slit-shaped openings (6) adopt transverse slits or vertical slits and are uniformly arranged on the side wall of the blowing chamber (2) or the air suction chamber (3).
6. A semi-enclosed air curtain as defined in claim 4 wherein: the openings (6) in the shape of holes adopt round holes or regular hexagonal holes and are uniformly arranged on the side wall of the blowing chamber (2) or the air suction chamber (3).
7. A semi-enclosed air curtain as defined in claim 1 wherein: the box body (1) is of a semi-surrounding structure, and the box body (1) is made of galvanized steel plates, stainless steel plates, glass steel plates or plastic plates.
8. A semi-enclosed air curtain as defined in claim 1 wherein: the air pipe connectors (7) are provided with a plurality of air pipe connectors.
9. A semi-enclosed air curtain as defined in claim 1 wherein: the air pipe connector (7) is arranged on the side wall or the bottom of the air suction chamber (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149504.0U CN219632162U (en) | 2023-05-12 | 2023-05-12 | Semi-enclosed air curtain fan housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321149504.0U CN219632162U (en) | 2023-05-12 | 2023-05-12 | Semi-enclosed air curtain fan housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219632162U true CN219632162U (en) | 2023-09-05 |
Family
ID=87807848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321149504.0U Active CN219632162U (en) | 2023-05-12 | 2023-05-12 | Semi-enclosed air curtain fan housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219632162U (en) |
-
2023
- 2023-05-12 CN CN202321149504.0U patent/CN219632162U/en active Active
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