CN220061802U

CN220061802U - Fume exhaust flue hood

Info

Publication number: CN220061802U
Application number: CN202321400321.1U
Authority: CN
Inventors: 刘启明; 孟小楠; 韩青; 徐常华; 韩佩瑾; 韩文强
Original assignee: Shandong Zhongke Hengji Building Material Co ltd
Current assignee: Shandong Zhongke Hengji Building Material Co ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-11-21
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a smoke exhaust flue hood which comprises a hood base capable of being mounted at the top end of a smoke exhaust flue of a building, wherein an exhaust port communicated with the smoke exhaust flue of the building is formed in the lower portion of the hood base, a wind guide column is connected to the hood base, a hood top cover is connected to the top of the wind guide column, smoke exhaust ports are formed in the side portions of the wind guide column, a plurality of flow guide columns which are arranged at the middle lower portion of the smoke exhaust ports at intervals are connected to the smoke exhaust ports, and the height between the uppermost flow guide column and the top wall of the smoke exhaust port is far greater than the height between two adjacent flow guide columns. The utility model has the advantages of simple structure, good flow guiding effect and better smoke discharging effect.

Description

Fume exhaust flue hood

Technical Field

The utility model relates to building construction facilities, in particular to a fume exhaust flue hood.

Background

Residential buildings or office buildings are generally provided with public flue gas ducts through which kitchen oil smoke and toilet sewage gas are discharged to the high altitude. In order to ensure that the flue gas channel is not influenced by wind, rain and snow, a flue gas channel hood is generally arranged at the top opening part of the flue gas channel. However, most of the existing flue gas duct hoods are cement components, for example, the Chinese patent of the utility model with the Chinese document number of CN201443191U discloses a flue gas duct hood which comprises a hood base, a hood top cover, an air guide support body and a rain-proof plate, but the flue gas guide effect is poor, the problem of air filling is easy to occur, and the flue gas still remains in a public flue gas duct.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a smoke exhaust air passage hood which is simple in structure and good in smoke diversion effect.

In order to solve the technical problems, the utility model comprises a hood base which can be arranged at the top end of a smoke channel of a building, an exhaust port communicated with the smoke channel of the building is arranged in the middle of the hood base, a wind guide column is connected to the hood base, a hood top cover is connected to the top of the wind guide column, and a smoke exhaust port is arranged at the side part of the wind guide column, and the structure is characterized in that: the exhaust gas port is connected with a plurality of guide posts which are arranged at the middle lower part of the exhaust gas port at intervals, and the height between the uppermost guide post and the top wall of the exhaust gas port is far greater than the height between two adjacent guide posts.

The flow guiding column is a column body with a cylindrical section.

The guide posts are posts with triangular sections, and the height between two adjacent guide posts is gradually reduced from outside to inside.

In the two adjacent guide posts, the top of the inner side of the lower guide post is higher than the lower part of the outer side of the upper Fang Daoliu post.

The guide post is provided with a downward and outward inclined air guide groove.

The section of the air guide groove is arc-shaped, and the height of the inner end of the air guide groove is lower than that of the outer end of the air guide groove.

The two ends of the flow guide column are prefabricated in the side wall of the air guide column.

Connecting seats extending into the smoke exhaust ports are prefabricated in the side walls of the air guide columns, and two ends of the air guide columns are respectively connected to the connecting seats.

The guide post is a post made of metal materials.

An air outlet is arranged on the top cover of the hood, and a rain baffle plate corresponding to the air outlet is arranged in the air guide column.

The utility model provides a fume duct hood, includes the hood base that can install on building fume duct top, and hood base lower part is equipped with the exhaust port with building fume duct UNICOM, be connected with the wind scooper on the hood base, the top of wind scooper is connected with the hood top cap, and the lateral part of wind scooper is provided with a plurality of fume vents, and its structural feature is: the exhaust gas port is connected with a plurality of guide posts which are arranged at the middle lower part of the exhaust gas port at intervals, and the distance between the uppermost guide post and the top wall of the exhaust gas port is far greater than the distance between two adjacent guide posts.

After adopting above-mentioned structure, because be connected with the many water conservancy diversion posts that are arranged in the exhaust gas port lower part and interval, the height between the roof of upper end water conservancy diversion post and exhaust gas port is greater than the height between two adjacent water conservancy diversion posts far away, therefore the space between the roof of upper end water conservancy diversion post and exhaust gas port is passed through to partial wind in the outside air, the space between two adjacent water conservancy diversion posts is passed through to other wind, thereby carry out the water conservancy diversion to the flue gas in the public flue, it is well known that when gas gets into narrow and small space, the velocity of flow can increase, therefore the velocity of flow of the wind that the below got into is greater than the wind that the top got into, thereby form the air convection, form the negative pressure effect to the upper portion of public flue gas port, make the flue gas in the flue gas take away, help the flue gas to discharge from the exhaust gas port. The various arrangements of the guide post are convenient for forming air convection with better effect, namely forming the negative pressure effect to the greatest extent, thereby realizing the smooth discharge of the flue gas.

In conclusion, the utility model has the advantages of simple structure, good flow guiding effect and better smoke discharging effect.

Drawings

The following detailed description of specific embodiments of the utility model is further detailed in conjunction with the accompanying drawings:

FIG. 1 is a schematic view of a longitudinal section of an embodiment of the present utility model;

FIG. 2 is a schematic view of a longitudinal section of another embodiment of the present utility model;

FIG. 3 is a schematic view of the air guiding post connected to the exhaust port in the embodiment of FIG. 2;

FIG. 4 is a schematic view of a longitudinal section of another embodiment of the present utility model;

FIG. 5 is a schematic view of the air guiding post connected to the exhaust port in the embodiment of FIG. 4;

FIG. 6 is a schematic view illustrating a structure in which an air guiding pillar is connected to an exhaust port according to another embodiment of the present utility model;

FIG. 7 is a schematic view of a structure of a further embodiment of the present utility model;

FIG. 8 is a schematic view of the structure taken along line B-B in FIG. 1;

fig. 9 is a perspective view of the structure of fig. 1.

Detailed Description

Referring to the drawings, the present utility model provides several embodiments of the flue hood, for convenience of description, the position of the flue hood near the middle is taken as the inner side of the flue hood, and the following connection may include direct connection and indirect connection, the indirect connection means that the connection may be performed through an intermediate component, and the arrangement of the intermediate component may be determined according to actual situations and will not be described in detail herein.

Referring to fig. 1 and fig. 8 and 9, an embodiment of a fume exhaust duct hood is shown, which comprises a hood base 1 capable of being installed at the top end of a fume duct of a building, an exhaust port 2 communicated with the fume duct of the building is arranged in the middle of the hood base 1, the connection structure of the hood base 1 and the fume duct of the building is the prior art, which can adopt various structures such as sleeving connection and connection seat connection, etc., not described in detail herein, a wind guide column 3 is connected to the hood base 1, a plurality of fume exhaust ports 5 are arranged on the side part of the wind guide column 3, the wind guide column 3 can adopt a square structure, four wind guide columns 3 are arranged in total, of course, other numbers of wind guide columns 3 can also be arranged, the space formed by the wind guide columns can be square or round, the space between two adjacent wind guide columns 3 is the fume exhaust ports 5, the bottom of the plurality of wind guide posts is connected to the wind cap base 1, the top of the wind guide post 3 is connected with the wind cap top cover 4, the wind cap top cover 4 can be provided with an air outlet 41, the air outlet 41 can also be not provided with the air outlet 41, the air outlet 41 can be in other shapes such as round, square and the like, when the air outlet 41 is provided, a rain shield 42 is arranged in the wind cap of the smoke exhaust air channel, the structure of the wind shield 42 is shown in the figure, the shape and the structure of the wind cap top cover 4 are the prior art, the rain shield is arranged at the upper part of the wind guide post 3, the rain shield is arranged opposite to the air outlet and has an area larger than the air outlet, the area of the wind shield is also larger than the area of the air outlet 2, thereby shielding the air outlet, preventing rainwater from entering, the smoke exhaust opening 5 is connected with a plurality of wind guide posts 6 which are arranged at the middle lower part of the smoke exhaust opening and at intervals, in this embodiment, the guide posts 6 are cylindrical in cross section, and of course, the guide posts 6 may also be plate-shaped, and three guide posts 6 disposed at intervals up and down are provided, arrow lines in the figure indicate the direction of wind flow, according to the principle of fluidics, when wind enters from the upper portion of the smoke exhaust port 5, the wind flow accelerates, and similarly, after entering from the space between two adjacent guide posts, the wind flow accelerates, under this condition, a negative pressure is formed under the wind flow (region a in the figure), so that a negative pressure adsorption effect is formed on the smoke in the smoke passage of the building, that is, a guide effect is achieved, so that the smoke is discharged more smoothly and the guide effect is better.

Referring to fig. 1, the fume exhaust duct hood provided by the utility model can be prefabricated by cement prefabricated members, namely, the fume exhaust duct hood is prefabricated and formed by a die, and two ends of the flow guide column 6 can be prefabricated in the side wall of the flow guide cover 3; the exhaust hood can also be supported by adopting a metal material, the guide post 6 is also made of a metal material, and two ends of the guide post can be welded on the side wall of the exhaust port 5 on the guide cover; in addition, since the sidewall of the air guide sleeve 3 has a certain thickness, and the thickness of the air guide sleeve 3 is far greater than the diameter of the air guide post 6, the air guide post 6 should be installed at a position close to the outer side of the air guide sleeve 3, that is, the end of the air guide post 6 is located at a position approximately outside the sidewall of the exhaust port, so that air guide is formed conveniently, and the guiding function of wind flow is played.

Referring to fig. 2 and 3, the present utility model provides another embodiment, which has the same basic structure as the above embodiment, and is different in that the flow guiding columns 6 are triangular columns, and the height between two adjacent flow guiding columns is gradually reduced from outside to inside, so that the structure is more beneficial to forming upward wind flow, thereby forming negative pressure adsorption effect, and being more beneficial to discharging flue gas.

Referring to fig. 4 and 5, the present utility model provides another embodiment, which has the same basic structure as the above embodiment, except that the guide post 6 has a downward and outward inclined air guide groove 61. The section of the air guide groove 61 is arc-shaped, the height of the inner end of the air guide groove is lower than that of the outer end of the air guide groove 61, and the air flow is accelerated and flows upwards after passing through the air guide groove 61, so that inward and upward air flow is formed, a negative pressure adsorption effect is formed, and the exhaust of flue gas is facilitated. Of course, the present utility model may also have other embodiments, referring to fig. 6, in which the flow guiding columns 6 are illustrated, and in two adjacent flow guiding columns 6, the top of the inner side of the lower flow guiding column 6 is higher than the lower portion of the outer side of the upper Fang Daoliu column 6, so as to form upward flowing wind, form negative pressure adsorption, and facilitate the discharge of flue gas.

Referring to the drawings, the utility model can also be provided with another embodiment, which comprises a hood base 1 capable of being arranged at the top end of a smoke channel of a building, wherein the lower part of the hood base 1 is provided with an exhaust port 2 communicated with the smoke channel of the building, the hood base 1 is connected with a hood, the top of the hood is connected with a hood top cover 4, the side part of the hood is provided with a plurality of smoke exhaust ports 5, the smoke exhaust ports 5 are connected with a plurality of guide posts 6 which are arranged at the middle lower part of the smoke exhaust ports at intervals, and the distance between the uppermost guide post 6 and the top wall of the smoke exhaust port 5 is far greater than the distance between two adjacent guide posts 6. That is, in this embodiment, the hood is of a unitary structure, the side surface of the hood is provided with the exhaust port 5, and the hood may be in a square or cylindrical shape.

Referring to fig. 7, the present utility model may have another embodiment, the basic structure of which is the same as that of the above embodiment, except that the hood base 1 is a flat plate structure, which can be fixedly connected with the top end of the flue of the building by grouting, or can be connected by other sealing connectors, which will not be described in detail herein.

Other embodiments of the present utility model are also possible, and other technical solutions formed in the claims are not repeated, so that the present utility model is not limited by the above embodiments, and equivalent changes and component replacement based on the above embodiments of the present utility model are all within the scope of the present utility model.

Claims

1. The utility model provides a fume exhaust flue hood, includes can install hood base (1) on building fume flue top, and hood base (1) middle part is equipped with exhaust port (2) with building fume flue UNICOM, be connected with many wind-guiding posts (3) on hood base (1), the top of wind-guiding post (3) is connected with hood top cap (4), and the space between two adjacent wind-guiding posts (3) is fume exhaust port (5), characterized by: the smoke exhaust port (5) is connected with a plurality of guide posts (6) which are arranged at the middle lower part of the smoke exhaust port at intervals, and the distance between the uppermost guide post (6) and the top wall of the smoke exhaust port (5) is far greater than the distance between two adjacent guide posts (6).

2. The flue hood according to claim 1, wherein: the flow guiding column (6) is a column body with a cylindrical section.

3. The flue hood according to claim 1, wherein: the guide posts (6) are cylinders with triangular sections, and the height between two adjacent guide posts is gradually reduced from outside to inside.

4. The flue hood according to claim 1, wherein: in the two adjacent guide posts, the top of the inner side of the lower guide post is higher than the lower part of the outer side of the upper Fang Daoliu post.

5. The flue hood according to claim 1, wherein: the guide post (6) is provided with a downward and outward inclined air guide groove (61).

6. The flue hood according to claim 5, wherein: the section of the air guide groove (61) is arc-shaped, and the height of the inner end of the air guide groove is lower than that of the outer end of the air guide groove.

7. A smoke exhaust duct hood according to any one of claims 1 to 6, wherein: the fume exhaust flue hood is a cement prefabricated member, and two ends of the flow guiding column (6) are prefabricated in the side wall of the air guiding column (3).

8. A smoke exhaust duct hood according to any one of claims 1 to 6, wherein: connecting seats extending into the smoke exhaust ports (5) are prefabricated in the side walls of the air guide columns (3), and two ends of each air guide column (6) are connected to the connecting seats respectively.

9. A smoke exhaust duct hood according to any one of claims 1 to 6, wherein: the guide post (6) is a post made of metal materials.

10. A smoke exhaust duct hood according to any one of claims 1 to 6, wherein: an air outlet is arranged on the hood top cover (4), and a rain shield corresponding to the air outlet is arranged in the air guide column (3).

11. The utility model provides a fume exhaust flue hood, includes can install hood base (1) on building fume flue top, and hood base (1) lower part is equipped with exhaust port (2) with building fume flue UNICOM, be connected with the hood on hood base (1), the top of hood is connected with hood top cap (4), and the lateral part of hood is provided with a plurality of fume exhaust ports (5), characterized by: the smoke exhaust port (5) is connected with a plurality of guide posts (6) which are arranged at the middle lower part of the smoke exhaust port at intervals, and the distance between the uppermost guide post (6) and the top wall of the smoke exhaust port (5) is far greater than the distance between two adjacent guide posts (6).