CN213237667U - Outdoor filter equipment and centralized smoke exhaust system of building - Google Patents
Outdoor filter equipment and centralized smoke exhaust system of building Download PDFInfo
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- CN213237667U CN213237667U CN202021410691.XU CN202021410691U CN213237667U CN 213237667 U CN213237667 U CN 213237667U CN 202021410691 U CN202021410691 U CN 202021410691U CN 213237667 U CN213237667 U CN 213237667U
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Abstract
The utility model relates to an outdoor filter equipment and centralized system of discharging fume of building, wherein outdoor filter equipment is including crossing the filter body, its characterized in that: be equipped with a plurality of structures the same filtration passageway that has entry and export on the filter body, filtration passageway includes: the main flow channel is formed by connecting M S-shaped channels which are mutually connected end to end, and M is a natural number; u type reposition of redundant personnel passageway, every arc bend department of sprue all is connected with a U type reposition of redundant personnel passageway, and U type reposition of redundant personnel passageway's entry and export all communicate with the sprue. Compared with the prior art, the utility model has the advantages of: the main flow channel formed by the S-shaped channels formed in the filtering channel is positively utilized to play a role in conventional turning centrifugal separation and boundary layer damage separation, the oil smoke filtering effect can be improved, and the local backflow of air flow prevents the air flow from continuing flowing downwards when external wind power reversely flows in, so that the external wind power is effectively prevented from flowing backwards.
Description
Technical Field
The utility model relates to an outdoor filter equipment and centralized smoke exhaust system of building.
Background
The range hood that uses in the kitchen of house and apartment at present, most all are independent separately, do not have the relation between the range hood of different residents, the user installs by oneself and inhales oil smoke and has very big randomness, most users directly set up the discharge port of range hood at the window trompil or the wall body hole digging in kitchen, the oil smoke directly discharges from the outer wall, cause the pollution interference to upper and lower floor resident family, and can cause oil pollution to the outer wall, can also influence the whole outward appearance image of building simultaneously.
With the rapid development of economy, more and more high-rise residences pull out the ground like spring shoots after rain. In order to keep the appearance of the whole building, a centralized smoke exhaust system of the building is adopted to perform centralized smoke exhaust in a plurality of high-rise civil residences, the system comprises indoor smoke exhaust ventilators arranged in kitchens of different residents on different floors, a public flue arranged in the building and an outdoor exhaust fan assisting system arranged on the top layer of the building, air outlets of the indoor smoke exhaust ventilators are communicated with the public flue, and an air outlet of the public flue is communicated with an inlet of the outdoor exhaust fan assisting system.
When the outdoor exhaust fan runs, the outdoor exhaust fan can play a certain windproof backflow function, but the main function of the outdoor exhaust fan still is auxiliary smoke exhaust, the rotating speed of the outdoor exhaust fan is mainly improved by increasing power when the outdoor exhaust fan flows backward in the face of strong wind, but the power consumption at the moment is useless for a user, the noise is greatly increased, and the influence on the user experience near a top floor is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the first technical problem that provide one kind to above-mentioned prior art need not power, thereby have one-way current-limiting effect and effectively prevent the outdoor filter equipment that outside wind-force flows backward.
The utility model aims to solve the second technical problem provide one kind to above-mentioned prior art need not power, thereby have one-way current-limiting effect and effectively prevent the centralized system of discharging fume of building that outside wind-force flows backward.
The utility model provides a technical scheme that above-mentioned first technical problem adopted does: an outdoor filter equipment, includes the filter body, its characterized in that: the filter body is provided with a plurality of filter channels with the same structure, each filter channel is provided with an inlet and an outlet, the inlet of each filter channel is arranged on the inner side surface of the filter body, and the outlet of each filter channel is arranged on the outer side surface of the filter body; the filtration channel includes:
the main flow channel is formed by connecting M S-shaped channels which are mutually connected end to end, and M is a positive rational number which is more than or equal to 1;
u type reposition of redundant personnel passageway, every arc bend department of sprue all is connected with a U type reposition of redundant personnel passageway, and every U type reposition of redundant personnel passageway's entry and export all communicate with the sprue, and all U type reposition of redundant personnel passageways all incline to filtering channel entry direction.
As an improvement, the filter body is a hollow semi-sphere or annular body, and the plurality of filter channels are distributed on the filter body at intervals.
And the upper part of the filter body is provided with a rain cover.
The rain cover comprises a top plate, a rain curtain which is connected with the periphery of the top plate and extends downwards, and the filter body is located in a space surrounded by the top plate and the rain curtain.
And the edge of the lower end of the rain curtain is connected with the edge of the lower port part of the filter body through a connecting plate.
The improved structure also comprises a communicating pipe connected with the filter body.
And the rain curtain is improved, and the rain curtain is provided with air holes.
The cross-sectional area of the U-shaped flow distribution channel is gradually reduced from the outlet to the inlet.
The utility model provides a technical scheme that above-mentioned second technical problem adopted does: a centralized smoke exhaust system for buildings comprises indoor smoke exhaust ventilators arranged in kitchens of residents on different floors, a public flue arranged in the building and an outdoor auxiliary fan system arranged on the top floor of the building; the air outlet of the indoor range hood is communicated with a common flue, and the outlet of the common flue is communicated with the inlet of the outdoor auxiliary fan system, and the range hood is characterized in that: the outlet of the outdoor auxiliary fan system is provided with an outdoor filtering device with the structure, and the outlet of the outdoor auxiliary fan system is communicated with the outside through the outdoor filtering device.
As an improvement, an outdoor filter screen is arranged at the inlet of the outdoor auxiliary fan system.
Compared with the prior art, the utility model has the advantages of: the main flow channel formed by the S-shaped channels formed in the filtering channel is positively utilized to play a role in conventional turning centrifugal separation and boundary layer damage separation, the oil smoke filtering effect can be improved, and the local backflow of air flow prevents the air flow from continuing flowing downwards when external wind power reversely flows in, so that the external wind power is effectively prevented from flowing backwards.
Drawings
Fig. 1 is a schematic perspective view of an outdoor filtering apparatus according to an embodiment of the present invention.
Fig. 2 is an exploded perspective view of an outdoor filtering device according to an embodiment of the present invention.
Fig. 3 is an exploded perspective view of an outdoor filter device at another viewing angle according to an embodiment of the present invention.
Fig. 4 is a cross-sectional view of an outdoor filter device according to an embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a filtering channel according to a first embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a filtering channel according to a first embodiment of the present invention (forward exhaust state).
Fig. 7 is a schematic structural diagram of a filtering channel according to a first embodiment of the present invention (reverse wind-proof backflow state).
Fig. 8 is a schematic structural diagram of a filtering channel according to a first embodiment of the present invention (forward exhaust separation enhancement).
Fig. 9 is the embodiment of the utility model provides an embodiment centralized smoke exhaust system's of building structural schematic diagram.
Fig. 10 is a cross-sectional view of an outdoor filter device according to a second embodiment of the present invention.
Fig. 11 is a cross-sectional view of a filter according to a second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments.
Example one
The outdoor filtering device shown in fig. 1-4 comprises a filtering body 1, a rain cover 2 arranged on the upper part of the filtering body 1, and a connecting pipe 3 arranged on the lower part of the filtering body 1. The filtering body 1 is a hollow semi-spherical body, a plurality of filtering channels 11 with the same structure are distributed on the filtering body 1 at intervals, each filtering channel 11 is provided with an inlet 11a and an outlet 11b, the inlet 11a of each filtering channel 11 is arranged on the inner side surface of the filtering body 1, and the outlet 11b of each filtering channel 11 is arranged on the outer side surface of the filtering body 1. Rain-proof cover 2 is including being located roof 21, with roof 21 be connected all around and downwardly extending's rain curtain 22, filter body 1 and be located the space that roof and rain curtain enclose, rain curtain 22's lower extreme edge passes through connecting plate 23 and is connected with the filter body 1 lower extreme oral area edge of hemisphere body. The rain curtain 22 is uniformly provided with air holes. The connecting pipe 3 is also connected with the lower port edge of the filter body 1 of the semispherical body.
In this embodiment, the specific structure of the filtering channel 11 is described with reference to fig. 5, and includes: a main flow channel 111, which is formed by connecting M S-shaped channels connected end to end, where M is a positive rational number greater than or equal to 1, in this embodiment, M is 2, and M may also be equal to 1.5, 2.5, 3, 3.5, and the like; the inlet of the main flow channel 111 is the inlet of the filter channel 11; u type reposition of redundant personnel passageway 112, every arc bend department of sprue all is connected with a U type reposition of redundant personnel passageway, and every U type reposition of redundant personnel passageway 112 entry and export all communicate with the sprue, and in this embodiment, U type reposition of redundant personnel passageway 112 has 4, and all U type reposition of redundant personnel passageways 112 all incline to filtering channel entry direction, and U type reposition of redundant personnel passageway 112's cross sectional area reduces from exporting to the entry gradually. The structure of the filtering passage 11 forms a tesla valve flow passage structure.
In fig. 5, the angle at abcd is set at [2-10 ° ], and the sectional area at a position, which is larger than the sectional area at b position, is larger than the sectional area at c position, and is larger than the sectional area at d position, so that when air is reversely fed, the backward air flow inevitably enters the U-shaped flow dividing channel through the main flow channel, and part of the backward air flow enters the secondary flow dividing channel after flowing back to the main flow channel, and finally stops at the flow dividing channel, so as to achieve the one-way flow limiting effect, as shown in fig. 7. When the gas flows in the forward direction (the gas flow entering from the inlet 11a flows out from the outlet 11b), since all the U-shaped diversion channels 112 are inclined towards the inlet of the filtering channel, the gas flow flowing in the forward direction does not enter the U-shaped diversion channels, the speed of the gas flow passing through the S-turn of the forward gas flow is increased, the centrifugal separation is more obvious, and the separation effect of the S-turn can be further increased, as shown in fig. 6. Fig. 8 shows a multilayer separation and gradual reduction acceleration process when oil smoke tail gas is discharged in the forward direction, which utilizes the boundary layer at the position where a plurality of shunt channels inside the filtering channel are connected to break the separation and turn the centrifugal separation, and the gradual reduction channel when the gas flows in the forward direction accelerates the flow of the flue gas, and the centrifugal separation is more obvious when the gas velocity of the S-turn is larger, thereby further increasing the separation effect of the S-turn.
The embodiment also provides a centralized smoke exhaust system for buildings, which is shown in fig. 9 and comprises indoor smoke exhaust ventilators 4 arranged in kitchens of residents on different floors, a common flue 5 arranged in the buildings, and an outdoor auxiliary fan system 6 arranged on the top floor of the building; the air outlets of the indoor range hoods 4 are communicated with a common flue 5, the outlet of the common flue 5 is communicated with the inlet of an outdoor auxiliary fan system 6, the outdoor filtering device with the structure is arranged at the outlet 6 of the outdoor auxiliary fan system, and the outlet of the outdoor auxiliary fan system is communicated with the outside through the outdoor filtering device. An outdoor filter screen 7 is arranged at the inlet of the outdoor auxiliary fan system.
Example two
In contrast to the first embodiment, the filter body 1' is in the form of a ring, as shown in fig. 10 and 11.
Claims (10)
1. An outdoor filter device, includes filter body (1), its characterized in that: the filter body (1) is provided with a plurality of filter channels (11) with the same structure, each filter channel is provided with an inlet (11a) and an outlet (11b), the inlet of each filter channel is arranged on the inner side surface of the filter body, and the outlet of each filter channel (11) is arranged on the outer side surface of the filter body; the filtration channel (11) comprises:
the main flow channel (111) is formed by connecting M S-shaped channels which are connected end to end, wherein M is a positive rational number which is more than or equal to 1;
u type reposition of redundant personnel passageway (112), every arc bend department of sprue all is connected with a U type reposition of redundant personnel passageway, and every U type reposition of redundant personnel passageway's entry and export all communicate with the sprue, and all U type reposition of redundant personnel passageways all incline to filtering channel entry direction.
2. The outdoor filter device of claim 1, wherein: the filtering body (1) is a hollow hemispheroid or an annular body, and the filtering channels (11) are distributed on the filtering body at intervals.
3. The outdoor filtering apparatus according to claim 1 or 2, wherein: the upper part of the filter body is provided with a rain cover (2).
4. The outdoor filter device of claim 3, wherein: rain-proof cover (2) are including being located roof (21), with roof all around be connected and downwardly extending's rain curtain (22), filter body (1) is located roof (21) and the space that rain curtain (22) enclose.
5. The outdoor filter device of claim 4, wherein: the rain curtain (22) is provided with air holes.
6. The outdoor filter unit of claim 5, wherein: the lower end edge of the rain curtain is connected with the lower end opening edge of the filter body (1) through a connecting plate (23).
7. The outdoor filter device of claim 1, wherein: also comprises a communicating pipe (3) connected with the filter body.
8. The outdoor filter device of claim 1, wherein: the cross-sectional area of the U-shaped flow distribution channel is gradually reduced from the outlet to the inlet.
9. A centralized smoke exhaust system for buildings comprises indoor smoke exhaust ventilators (4) arranged in kitchens of residents on different floors, a public flue (5) arranged in the building and an outdoor auxiliary fan system (6) arranged on the top floor of the building; the air outlet of the indoor range hood is communicated with a common flue, and the outlet of the common flue is communicated with the inlet of the outdoor auxiliary fan system, and the range hood is characterized in that: an outdoor filter device as claimed in claim 1 is provided at an outlet of the outdoor auxiliary fan system, and the outlet of the outdoor auxiliary fan system is communicated with the outdoor through the outdoor filter device.
10. The centralized building smoke evacuation system of claim 9, wherein: an outdoor filter screen (7) is arranged at the inlet of the outdoor auxiliary fan system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021410691.XU CN213237667U (en) | 2020-07-16 | 2020-07-16 | Outdoor filter equipment and centralized smoke exhaust system of building |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021410691.XU CN213237667U (en) | 2020-07-16 | 2020-07-16 | Outdoor filter equipment and centralized smoke exhaust system of building |
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| CN213237667U true CN213237667U (en) | 2021-05-18 |
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| CN202021410691.XU Active CN213237667U (en) | 2020-07-16 | 2020-07-16 | Outdoor filter equipment and centralized smoke exhaust system of building |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413387A (en) * | 2022-02-22 | 2022-04-29 | 合肥职业技术学院 | Laboratory ventilation device for intelligent manufacturing |
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2020
- 2020-07-16 CN CN202021410691.XU patent/CN213237667U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413387A (en) * | 2022-02-22 | 2022-04-29 | 合肥职业技术学院 | Laboratory ventilation device for intelligent manufacturing |
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