Vertical discharge flue for residential kitchen and forming method of vertical discharge flue

Abstract

The invention belongs to the technical field of exhaust duct systems, and provides a vertical discharge flue for a residential kitchen and a forming method thereof.The vertical discharge flue for the residential kitchen is defined by a concrete wall with a smoke inlet and a U-shaped section and a plurality of vertically-stacked linear metal flat plates; the straight-line-shaped metal flat plate is connected with the U-shaped concrete wall through a plurality of connecting pieces, each connecting piece comprises a first connecting part and a second connecting part which are perpendicular to each other, the first connecting parts are fixed to the wall face of the concrete wall in an attached mode, the second connecting parts are fixed to the straight-line-shaped metal flat plate in an attached mode, and a bottom sealing plate is arranged at the bottom of the vertical discharge flue. And a roof hood for preventing rain from entering the discharge flue is arranged at the top opening. According to the vertical discharge flue, the linear metal flat plate in the vertical discharge flue is fixedly connected with the concrete wall through the first connecting part and the second connecting part which are perpendicular to each other, and the defects that in the prior art, up-down butt joint dislocation, large gaps, low construction efficiency and the like are caused by building construction errors are overcome.

Description

Technical Field

[0001] This application belongs to the field of exhaust duct system technology, and more specifically, relates to a vertical exhaust duct for a residential kitchen and its forming method. Background Technology

[0002] Existing vertical exhaust ducts in residential kitchens suffer from drawbacks such as misalignment of exhaust duct components due to construction errors in the concrete walls, large gaps, and low construction efficiency. Summary of the Invention

[0003] The purpose of this application is to provide a vertical exhaust duct for a residential kitchen and its forming method, aiming to solve the technical problems of misalignment of exhaust duct components, large gaps, and low construction efficiency caused by construction errors in concrete walls in the prior art.

[0004] To achieve the above objectives, the technical solution adopted in this application embodiment is as follows: a vertical exhaust duct for a residential kitchen is provided, which is composed of a U-shaped concrete wall with a smoke inlet and multiple vertically stacked straight metal plates. The two opposite walls of the multiple straight metal plates and the U-shaped concrete wall are connected by multiple connectors. The connectors include a first connecting part and a second connecting part that are perpendicular to each other. The first connecting part is fixed to the concrete wall, and the second connecting part is fixed to the straight metal plate. The bottom of the vertical exhaust duct is provided with a bottom sealing plate, and the top has an opening. A roof vent cap is provided at the top opening to prevent rain from entering the exhaust duct.

[0005] Specifically, the cross-section of the connector is T-shaped or L-shaped.

[0006] Specifically, the first connecting part is fixed to the concrete wall by a locking device, and the second connecting part is fixed to the straight metal plate by a locking device or by welding.

[0007] Specifically, the first connecting part is filled with sealant between itself and the concrete wall, and the second connecting part is filled with sealant between itself and the straight metal plate.

[0008] Specifically, the top and bottom of the straight metal plate have horizontal folded edges, and two adjacent straight metal plates are fixedly connected by the horizontal folded edges; the two sides of the straight metal plate have vertical folded edges to enhance the bending strength.

[0009] Specifically, the smoke inlet is located on any side of the U-shaped concrete wall, and the outlet side of the smoke inlet is provided with a guide or a guide and pressure transformer device.

[0010] Specifically, the smoke inlet is equipped with a fireproof check valve or an electrically controlled multi-functional valve on the smoke inlet side.

[0011] The present invention also provides a method for forming the above-mentioned vertical exhaust duct for residential kitchens, comprising the following steps:

[0012] S1: Cast a U-shaped concrete wall; prepare multiple connectors, each connector including a first connecting part and a second connecting part that are perpendicular to each other; prepare multiple straight metal plates;

[0013] S2: Stack multiple connectors in sequence at the opening of the U-shaped concrete wall, fix the first connecting part of the connector to the wall surface of the U-shaped concrete wall by locking parts, and fix the two ends of multiple straight metal plates to the second connecting part of the connector by welding or locking parts. Weld or lock parts to fix the horizontal joint of two adjacent straight metal plates.

[0014] S3: Install a bottom sealing plate and a roof vent cap at the bottom and top of the vertical flue, respectively.

[0015] In step S1, the smoke inlet is directly formed when pouring a U-shaped concrete wall; or, the smoke inlet is opened in steps S2 and S3.

[0016] The process includes step S21 after step S2: filling the space between the first connecting part of the connector and the U-shaped concrete wall with sealant; when the second connecting part of the connector is fixed to the straight metal plate by the locking member, it is also necessary to fill the space between the straight metal plate and the second connecting part of the connector with sealant; when the horizontal joint of two adjacent straight metal plates is fixed by the locking member, it is also necessary to fill the horizontal joint of the two adjacent straight metal plates with sealant.

[0017] In this invention, the straight metal plate in the vertical flue is fixedly connected to the concrete wall through a vertical first connecting part and a second connecting part. The first connecting part of the connector is fixedly connected to the concrete wall, and the second connecting part of the connector is fixedly connected to the straight metal plate. The straight metal plate adjusts the opening size of the U-shaped concrete wall and the error between the straight metal plate and the straight metal plate through the height range of the second connecting part of the connector. This overcomes the shortcomings of the prior art, such as misalignment of the upper and lower joints, large gaps, and low construction efficiency caused by construction errors. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1A longitudinal sectional view of a vertical exhaust duct for a residential kitchen provided in Embodiment 1 of this application;

[0020] Figure 2 for Figure 1 A cross-sectional schematic diagram;

[0021] Figure 3 This is a cross-sectional schematic diagram of a vertical exhaust duct in a residential kitchen provided in Embodiment 2 of this application;

[0022] Figure 4 for Figure 3 A longitudinal section diagram;

[0023] Figure 5 This is a cross-sectional schematic diagram of a vertical exhaust duct in a residential kitchen provided in Embodiment 3 of this application;

[0024] Figure 6 for Figure 5 A schematic diagram of its longitudinal section.

[0025] The following are the labeling elements in the figure:

[0026] 10 - U-shaped concrete wall; 11 - Smoke inlet;

[0027] 20 - A straight metal plate; 21 - Horizontal folded edge; 22 - Vertical folded edge;

[0028] 30 - Connector; 31 - First connecting part; 32 - Second connecting part; 33 - Locking part; 34 - Sealant; 35 - Welding point;

[0029] 40-Bottom sealing plate; 50-Roof vent cap; 70-Flow guide; 80-Flow guide transformer; 81-Transformer cover. Detailed Implementation

[0030] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0031] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0032] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0034] Example 1

[0035] Reference Figure 1 , Figure 2 This application provides a vertical exhaust duct for a residential kitchen, comprising a U-shaped concrete wall 10 and multiple vertically stacked straight metal plates 20. The U-shaped concrete wall 10 has a smoke inlet 11, and the multiple vertically stacked straight metal plates 20 are positioned at the opening of the U-shaped concrete wall 10. The multiple straight metal plates 20 and the two opposing surfaces of the U-shaped concrete wall 10 are connected by multiple connectors 30. Specifically, each connector 30 includes a first connecting portion 31 and a second connecting portion 32 that are perpendicular to each other. The first connecting portion 31 is fixed to the surface of the U-shaped concrete wall 10, and the second connecting portion 32 is fixed to the straight metal plates 20. The bottom of the vertical exhaust duct has a bottom sealing plate 40, and the top has an opening with a roof vent 50 to prevent rain from entering the exhaust duct.

[0036] In this embodiment, the straight metal plate 20 in the vertical exhaust duct has no folded edges and is fixedly connected to the U-shaped concrete wall 10 through the connector 30. The first connecting part 31 of the connector 30 is fixedly connected to the concrete wall, and the second connecting part 32 of the connector 30 is fixedly connected to the straight metal plate 20. The straight metal plate 20 adjusts the opening size of the U-shaped concrete wall 10 and the error between the straight metal plate 20 and the straight metal plate 20 through the height range of the second connecting part 32, thus overcoming the shortcomings of the prior art, such as misalignment of upper and lower joints, large gaps, and low construction efficiency caused by construction errors.

[0037] In this embodiment, the connector 30 has an L-shaped cross-section. The first connecting part 31 of the L-shaped connector 30 is fixed to the concrete wall by a locking member 33, which is an expansion bolt. The second connecting part 32 is fixed to the straight metal plate 20 by welding. As shown in the figure, the welding point 35 is located at the end of the straight metal plate 20.

[0038] In this embodiment, to enhance the sealing performance of the flue, sealant 34 is filled between the first connection 31 and the concrete wall.

[0039] Example 2

[0040] Reference Figure 3 , Figure 4 The vertical exhaust duct for a residential kitchen provided in Embodiment 2 of this application differs from Embodiment 1 in that, in this embodiment, the connector 30 has a T-shaped cross-section. The first connecting portion 31 of the T-shaped connector 30 is fixedly connected to the concrete wall, and the second connecting portion 32 of the T-shaped connector 30 is fixedly connected to the straight metal plate 20. With this structure, the connector 30 has a pre-reserved decorative fixing edge for the straight metal plate 20.

[0041] In this embodiment, another difference from Embodiment 1 is that the straight metal plate 20 has a horizontal folded edge 21 and a vertical folded edge 22. The horizontal folded edge 21 extends outward from the top and bottom with a certain width, which increases the bending strength of the straight metal plate 20 and facilitates the fixed connection of adjacent straight metal plates 20 when stacked. The fixed connection can be achieved by using bolts or rivets or other locking components 33. When using locking components 33, sealant 34 is filled between the straight metal plates 20. Of course, welding can also be used, in which case the sealant 34 is not required. The vertical folded edges 22 on both sides of the straight metal plate 20 also enhance its bending strength.

[0042] In this embodiment, the metal plate 20 and the second connecting part 32 of the T-shaped connector 30 are fixedly connected by a locking member 33, and the gap at the connection is filled with sealant 34.

[0043] In this embodiment, a guide member 70 is provided on the exhaust side of the smoke inlet 11 to make the exhaust in the vertical smoke duct of the residential kitchen smoother. Of course, the guide member 70 can also be replaced by a guide transformer device 80.

[0044] In other embodiments, a fireproof backflow preventer or an electrically controlled multi-functional valve (not shown in the figure) may be provided on the smoke inlet 11 on the smoke inlet side to prevent the smoke in the vertical exhaust duct of the residential kitchen from flowing back into the kitchen and to prevent the spread of fire in the event of a fire.

[0045] Example 3

[0046] Reference Figure 5 , Figure 6 The residential vertical smoke exhaust duct provided in Embodiment 3 of this application differs from Embodiment 2 in that the smoke inlet 11 is located on the side of the straight metal plate 20 instead of on the opposite side; and a flow guiding and pressure transforming device 80 with a pressure transforming hood 81 is added to the smoke outlet side of the smoke inlet 11. Other structures are the same as in Embodiments 1 and 2, and will not be described in detail.

[0047] The present invention also provides a method for forming a vertical exhaust duct for a residential kitchen, comprising the following steps:

[0048] S1: Cast a U-shaped concrete wall 10; prepare multiple connectors 30, each connector 30 including a first connecting part 31 and a second connecting part 32 that are perpendicular to each other; prepare multiple straight metal plates 20;

[0049] S2: Stack multiple connectors 30 in sequence at the opening of the U-shaped concrete wall 10, fix the first connecting part 31 of the connector 30 to the wall surface of the U-shaped concrete wall 10 by locking part 33, and fix the two ends of multiple straight metal plates 20 to the second connecting part 32 of the connector 30 by welding or locking part 33 in sequence. Weld or lock part 33 to the horizontal joint of two adjacent straight metal plates 20.

[0050] S3: Install a bottom sealing plate 40 and a roof vent cap 50 at the bottom and top of the vertical flue, respectively.

[0051] In step S1, when pouring the U-shaped concrete wall 10, the smoke inlet 11 can be formed directly, or the smoke inlet 11 can be opened in steps S2 and S3.

[0052] In step S2, when the straight metal plate 20 is fixed using the connector 30, the first connecting part 31 is attached to and fixed to the concrete wall surface, and the second connecting part 32 is attached to and fixed to the straight metal plate 20.

[0053] Following step S2, step S21 is also included: filling the space between the first connecting portion 31 of the connector 30 and the U-shaped concrete wall 10 with sealant 34. When the second connecting portion 32 of the connector 30 is fixed to the straight metal plate 20 by the locking member 33, sealant 34 also needs to be filled between the straight metal plate 20 and the second connecting portion 32 of the connector 30. When the second connecting portion 32 of the connector 30 is welded to the straight metal plate 20, it is not necessary to fill with sealant 34. When the horizontal joint of two adjacent straight metal plates 20 is fixed by the locking member 34, it is also necessary to fill with sealant 34 at the horizontal joint of the two adjacent straight metal plates 20. When the horizontal joint of two adjacent straight metal plates 20 is fixed by welding, it is not necessary to fill with sealant 34.

[0054] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application.

Claims

1. A residential kitchen vertical flue comprising: The vertical smoke exhaust duct is formed by a U-shaped concrete wall with a smoke inlet and a plurality of vertically stacked one-shaped metal plates. The two opposite wall surfaces of the U-shaped concrete wall and the one-shaped metal plates are connected by a plurality of connecting pieces. The connecting pieces include a first connecting part and a second connecting part which are perpendicular to each other. The first connecting part is fixedly connected to the wall surface of the concrete wall, and the second connecting part is fixedly connected to the one-shaped metal plate. The bottom of the vertical smoke exhaust duct is provided with a bottom sealing plate, and the top is provided with an opening. A roof hood is arranged at the opening of the top to prevent rain from entering the smoke exhaust duct.

2. The residential kitchen vertical exhaust duct of claim 1, wherein: The connecting piece is in a T-shaped or L-shaped cross section.

3. The residential kitchen vertical exhaust duct of claim 1, wherein: The first connecting part and the concrete wall are fixed by a locking piece, and the second connecting part and the one-shaped metal plate are fixed by a locking piece or welding.

4. The residential kitchen vertical exhaust duct of claim 1, wherein: The first connecting part and the concrete wall are filled with sealant, and the second connecting part and the one-shaped metal plate are filled with sealant.

5. The residential kitchen vertical exhaust duct of claim 1, wherein: The top and bottom of the one-shaped metal plate have horizontal folding edges, and the upper and lower adjacent one-shaped metal plates are fixed and connected by the horizontal folding edges. The two side edges of the one-shaped metal plate have vertical folding edges to enhance the bending strength.

6. A residential kitchen vertical flue as defined in claim 1, wherein: The smoke inlet is arranged on any wall surface of the U-shaped concrete wall, and a flow guide or a flow guide variable pressure device is arranged on the gas outlet side of the smoke inlet.

7. A residential kitchen vertical flue as defined in claim 1, wherein: A fireproof check valve or an electrically controlled multifunctional valve is arranged on the smoke inlet side.

8. The method of forming a residential kitchen vertical exhaust duct according to any one of claims 1 to 7, wherein: The forming method comprises the following steps: S1: pouring a U-shaped concrete wall; preparing a plurality of connecting pieces, each connecting piece comprising a first connecting part and a second connecting part which are perpendicular to each other; and preparing a plurality of one-shaped metal plates; S2: sequentially stacking the connecting pieces at the opening of the U-shaped concrete wall, fixing the first connecting part of the connecting piece to the wall surface of the U-shaped concrete wall by a locking piece, and sequentially fixing the two ends of the one-shaped metal plate to the second connecting part of the connecting piece by welding or a locking piece, and fixing the horizontal joint of the upper and lower adjacent one-shaped metal plates by welding or a locking piece; S3: installing a bottom sealing plate at the bottom of the vertical smoke exhaust duct and a roof hood at the top.

9. The forming method of the residential kitchen vertical smoke exhaust duct according to claim 8, wherein: In the S1 step, when pouring the U-shaped concrete wall, the smoke inlet is directly formed; or, in the S2 and S3 steps, the smoke inlet is formed.

10. The forming method of the residential kitchen vertical smoke exhaust duct according to claim 8, wherein: After the S2 step, the method further comprises the following step S21: filling sealant between the first connecting part of the connecting piece and the U-shaped concrete wall surface; when the second connecting part of the connecting piece is fixed to the one-shaped metal plate by a locking piece, sealant is further filled between the one-shaped metal plate and the second connecting part of the connecting piece; and when the horizontal joint of the upper and lower adjacent one-shaped metal plates is fixed by a locking piece, sealant is further filled at the horizontal joint of the upper and lower adjacent one-shaped metal plates.

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