Forming method for assembling exhaust passage on metal component

Abstract

The invention belongs to the technical field of exhaust passage systems, and provides a forming method of a metal component assembled exhaust passage, which comprises the following forming steps: S1, preparing a plurality of metal components, and forming an air inlet in each metal component; s2, a rotating device is arranged on a floor slab of the building internal corner, at least two metal components are sequentially stacked on the rotating device, the sunny side butt joint positions, away from the building internal corner, of the adjacent metal components are fixed, the rotating device is rotated, and the unfixed sunny side butt joint positions are rotated to be away from the building internal corner and fixed; s3, the rotating device is dismantled, and the butt joint fixing position of the adjacent metal components is arranged in the reserved hole of the floor; and S4, the reserved holes are backfilled with slurry, the bottoms, provided with the exhaust passages, of the metal components are sealed, air caps are installed on the tops of the metal components, and valves are installed at the air inlets of the metal components. According to the forming method, the technical problems that in the prior art, during forming of the metal component assembled exhaust passage, construction is complex, efficiency is low, and the occupied space is large are solved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of exhaust duct system, and more particularly to a forming method of metal component assembled exhaust duct arranged in a residential kitchen. BACKGROUND

[0002] At present, some of the assembled exhaust ducts in the residential kitchen are formed by using concrete thin-wall components and wall body, and some are formed by using metal components. For the exhaust duct formed by using metal components near the building corner, the existing technology has the following problems: 1. The metal component assembled exhaust duct is first arranged on the sun surface, and then the metal component assembled exhaust duct is arranged near the building corner, and then the sun surface opening is supplemented to complete the metal component assembled exhaust duct. The construction site is complex, inefficient, and high in cost. 2. The metal component assembled exhaust duct is arranged far away from the wall surface of the building corner, and the building space is reserved as an assembly space for external welding or locking of the locking component, which reduces the effective and practical area of the residence. SUMMARY

[0003] The purpose of the embodiment of the application is to provide a forming method of metal component assembled exhaust duct, which aims to solve the technical problems of complex construction, low efficiency, and large space occupation in the forming of the metal component assembled exhaust duct in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the embodiment of the application is as follows: a forming method of metal component assembled exhaust duct is provided, which comprises the following forming steps: S1. Preparing a plurality of hollow metal components with circular or polygonal or straight and arc-shaped cross sections; S2. Arranging a rotating device at the building corner, and sequentially stacking at least two metal components on the rotating device, and fixing the abutting surface of the adjacent metal components away from the sun surface of the building corner, and rotating the rotating device to make the fixed abutting surface rotate to be close to the building corner, and the unfixed abutting surface rotate to be away from the sun surface of the building corner and be fixed; S3. Removing the rotating device, and arranging the abutting and fixed surfaces of the adjacent metal components in the floor reserved hole; S4. Backfilling the slurry in the reserved hole, sealing the bottom of the metal component assembled exhaust duct, and installing the air cap on the top, and installing the valve at the air inlet of each metal component.

[0005] Specifically, in the S1 step, the top end and the bottom end of each metal member are provided with a folded edge, and in the S2 step, the abutting position of the adjacent two metal members is fixed by locking through the adjacent folded edges by a locking member or welding or folding the folded edge; or in the S1 step, the top end and the bottom end of each metal member are not provided with a folded edge, and in the S2 step, the abutting position of the adjacent two metal members is fixed by welding, and the folded edge is welded at the position of the metal member.

[0006] Specifically, in the S2 step, if the two folded edges of the adjacent two metal members are fixed by the locking member, the step of filling the sealant between the two folded edges is further included, and the sealant is fireproof, weather-resistant or structural.

[0007] Specifically, in the S4 step, an isolation layer is arranged between the outer wall of the metal member and the reserved hole before backfilling the slurry in the reserved hole.

[0008] Specifically, in the S4 step, the isolation layer is arranged by arranging a film or waterproof paint or ointment or a metal sleeve on the outer wall of the metal member.

[0009] Specifically, in the S4 step, the air inlet of the metal member can be arranged when the metal member is prepared, or can be arranged in step S4, a branch pipe is arranged at the air inlet, and a valve is arranged at the air inlet of the branch pipe.

[0010] Specifically, in the S4 step, the valve is a fireproof check valve or a flow-guiding type fireproof check valve or a variable pressure type fireproof check valve or an electrically controlled multifunctional valve.

[0011] Specifically, in the S1 step, when the metal member is prepared, a flow guide or a flow guide variable pressure device composed of a flow guide and a surrounding plate is arranged at the air outlet end of the air inlet of the metal member; and / or, in the S1 step, when the metal member is prepared, a reinforcing rib or a convex-concave reinforcing part is additionally arranged on the metal member.

[0012] Specifically, after the S4 step, the S5 step is further included, an L-shaped structure is arranged around the exhaust channel of the metal member, and the L-shaped structure is formed by an L-shaped cement prefabricated member or a block or a spliced board.

[0013] Specifically, a sound insulation layer is arranged between the L-shaped structure and the exhaust channel of the metal member, and the sound insulation layer is sound insulation cotton or a sound insulation board layer.

[0014] In the application, the folded edge of the metal component assembled exhaust passage is arranged at the reserved hole, and the backfilled slurry plays a fixing and supporting role on the folded edge after solidification, without the need to increase additional supporting components. The fixing and supporting are completed at the same time of assembly, and the metal component assembled exhaust passage is assembled through the rotating construction method, with high assembly efficiency, low cost, less occupation of building space after assembly, and increased practical area. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0016] Figure 1 FIG. 1 is a longitudinal sectional view of a longitudinal section of a metal component assembled exhaust passage formed by using a rotating device in the present application; Figure 2 FIG. 2 is a horizontal sectional view of the horizontal section of the metal component assembled exhaust passage of FIG. 1; Figure 1 FIG. 3 is a horizontal sectional view of the horizontal section of the rotating device rotating 180°; Figure 3 FIG. 4 is a longitudinal sectional view of the longitudinal section of the rotating device after the rotating device is removed; Figure 1 Figure 4 FIG. 5 is a longitudinal sectional view of an embodiment one of the metal component assembled exhaust passage formed by the present application; Figure 5 FIG. 6 is a horizontal sectional view of the horizontal section of the metal component assembled exhaust passage of FIG. 5; Figure 4 FIG. 7 is a longitudinal sectional view of an embodiment two of the metal component assembled exhaust passage formed by the present application; Figure 6 FIG. 8 is a horizontal sectional view of the horizontal section of the metal component assembled exhaust passage of FIG. 7; Figure 7 Figure 6 FIG. 9 is a sectional view of an embodiment three of the metal component assembled exhaust passage formed by the present application.

[0017] Figure 8 FIG. 10 is a sectional view of an embodiment four of the metal component assembled exhaust passage formed by the present application.

[0018] 10-metal component; 11-folded edge; 12-air inlet; 20-metal component assembled exhaust passage; 21-locking part; 22-sealing part; 23-welding point; 30-reserved hole; 31-slurry; 40-branch pipe; 50-valve; 51-flow guiding part; 52-flow guiding pressure changing device; 53-enclosure; 60-building internal corner; 61-leveling layer; 70-air cap; 80-rotating device.​​ Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] 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. Example

[0023] This application provides a method for forming an exhaust channel for assembling a metal component, including the following forming steps: S1. Prepare multiple open metal components 10 with circular or polygonal cross sections or straight and curved sides, and each metal component 10 is provided with an air inlet 12.

[0024] Specifically, in this step, both the top and bottom ends of the metal component 10 are provided with flanges 11. (Refer to...) Figure 2 In this embodiment, the metal component 10 is a hollow structure with a circular cross-section.

[0025] In this step, refer to Figure 1 When preparing the metal component 10, a guide 51 is provided at the outlet end of the air inlet 12 of the metal component 10. The guide 51 is provided at the outlet end to make the exhaust in the exhaust channel smoother.

[0026] In this step, to enhance the strength of the metal component 10, reinforcing ribs (not shown in the figure) may be added to the metal component 10 or convex and concave reinforcing parts (not shown in the figure) may be provided on the metal component 10.

[0027] S2. A rotating device 80 is installed at the building's internal corner 60. At least two metal components 10 are stacked on the rotating device 80 in sequence. The positive faces of adjacent metal components 10 away from the building's internal corner 60 are fixed. The rotating device 80 is rotated so that the fixed positive faces are rotated to the negative face close to the building's internal corner 60, while the unfixed negative faces are rotated to the positive face away from the building's internal corner 60 and fixed.

[0028] Specifically, in this step, when two adjacent metal components 10 are stacked, the folded edges 11 of the upper and lower metal components 10 are joined together. The folded edges 11 are provided with fixing holes (not shown in the figure), and locking members 21 are passed through the corresponding fixing holes for locking and fixing. Specifically, refer to... Figure 1 With the adjacent metal component 10 facing outwards from the building's internal corner 60, the air inlet 12 and the guide 51 are located on the left side, close to the building's internal corner 60. After fixing the adjacent folded edges 11 on the external side with the locking member 21, the rotating device 80 rotates. Figure 2 As shown, the fixed positive side of the contact point is rotated to be closer to the building's negative corner 60, while the unfixed negative side of the contact point is rotated to the positive side away from the building's negative corner 60 and fixed by the locking member 21. At this time, the air inlet 12 and the guide member 51 rotate to the right side away from the building's negative corner 60.

[0029] In step S1, if the top and bottom ends of the metal component 10 are not provided with flanges 11, in step S2, they can be fixed by welding at the overlapping and mating points of the metal components 10, and flanges 11 can be welded at the overlapping points of the metal components 10. Of course, the flanges 11 of adjacent metal components 10 can also be welded and fixed.

[0030] Specifically, in step S2, if the two folded edges 11 of two adjacent metal components 10 are fixed together by locking members 21, the step of filling the two folded edges 11 with sealant 22 is also included. The sealant 22 is fireproof, weather-resistant, or structural. If the two folded edges 11 are fixed by welding, then filling with sealant 22 is not required.

[0031] S3. Remove the rotating device 80 so that the adjacent metal components 10 are fixedly connected in the reserved hole 30 in the floor slab.

[0032] Specifically, the opening of the reserved hole 30 in the floor slab is larger at the top and smaller at the bottom. The height of each metal component 10 is consistent with the floor height, or they can be spliced ​​in sections to match the floor height. After removing the rotating device 80, the joint fixing point of the folded edge 11 of adjacent metal components 10 is precisely placed within the reserved hole 30 in the floor slab. Figure 3 As shown.

[0033] S4. Backfill the reserved hole 30 with grout 31, seal the bottom of the exhaust duct of the metal component 10, and install the wind cap 70 on the top; install valve 50 at the air inlet 12 of each metal component 10.

[0034] Specifically, in this step, since the opening of the reserved hole 30 is large at the top and small at the bottom, when the folded edge 11 is placed at the opening, the backfilled grout 31, after curing, plays a role in fixing and supporting the folded edge 11. In this way, the entire exhaust channel does not need to add additional supporting components. Fixing and supporting are completed at the same time as assembly, and it is fixed by the locking component 21, which is easy to operate and has low cost.

[0035] Specifically, in this step, before backfilling the grout 31, an isolation layer (not shown in the figure) is installed between the outer wall of the metal component 10 and the reserved hole. The isolation layer is a thin film, waterproof coating, grease, or metal sleeve installed on the outer wall of the metal component 10. The isolation layer prevents the grout from corroding the metal component 10 and enhances the durability of the metal component 10 in assembling the venting channel.

[0036] Specifically, refer to Figure 4 In this step, a branch pipe 40 is installed at the air inlet 12, and a valve 50 is installed at the air inlet of the branch pipe 40. The valve 50 is a fireproof check valve, a flow-directing fireproof check valve, a pressure-adjustable fireproof check valve, or an electrically controlled multi-functional valve. The valve 50 at the air inlet end allows for opening or closing of the air inlet to prevent smoke from flowing back into the kitchen from the exhaust duct 20 assembled with metal components, and to prevent the spread of fire in the event of a fire.

[0037] It should be noted that in this embodiment, an air inlet 12 is formed on the metal component 10 during the preparation of the metal component 10. Of course, the air inlet 12 can also be formed in step S4, that is, the air inlet 12 is formed before the valve 50 is installed.

[0038] In this step, the bottom of the metal component assembly exhaust duct 20 is located on the ground and sealed by the leveling layer 61. This sealing method can better withstand the impact of objects falling into the exhaust duct. Of course, the bottom of the exhaust duct can also be left off the ground and sealed by welding or bolting metal plates.

[0039] It should be noted that in this step, the installation of valve 50, sealing the bottom of the exhaust duct of the metal component assembly, and installing the wind cap 70 on the top can be done in any order and can be carried out simultaneously when there are enough personnel.

[0040] S5. An L-shaped structure (not shown in the figure) is installed around the exhaust duct 20 assembled in the metal component to achieve sound insulation and external tiling functions. The L-shaped structure is formed by L-shaped precast cement components, blocks, or panels. The L-shaped precast cement components are made of thin-walled cement, which is low in cost and occupies little space. Of course, the L-shaped structure can also be formed by blocks or panels.

[0041] In step S5, a sound insulation layer (not shown in the figure) may be provided between the L-shaped structure and the metal component assembly exhaust duct 20. The sound insulation layer is sound insulation cotton or sound insulation board layer to enhance the sound insulation effect.

[0042] Assemble the exhaust duct 20 from the metal component finally formed according to the aforementioned steps. Figure 4 , Figure 5 As shown. Example

[0043] Reference Figure 6 , Figure 7 The method for forming the exhaust duct of the metal component 10 provided in Embodiment 2 of this application differs from that in Embodiment 1 in that: the cross-section of the metal component 10 is polygonal, no branch pipe 40 is provided at the air inlet 12 of the metal component 10, a valve 50 is provided at the air inlet end of the air inlet 12, and a flow guiding and pressure changing device 52 composed of a flow guide 51 and a surrounding plate 53 is provided at the air outlet end, and the folded edges 11 of adjacent metal components 10 are welded and fixed by welding points 23. Example

[0044] Reference Figure 8 The method for forming the exhaust duct using the metal component 10 provided in Embodiment 3 of this application differs from Embodiment 1 in that the cross-section of the metal component 10 is an open component enclosed by a straight edge and an arc edge. Using this structure reduces the actual area occupied by the exhaust duct and facilitates the installation of the valve 50. Other aspects in this embodiment are the same as in Embodiment 1 and will not be repeated here.

[0045] 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 method for forming an exhaust channel for assembling a metal component, characterized in that: The molding process includes the following steps: S1. Prepare multiple open metal components with cross-sections that are circular, polygonal, or enclosed by straight and curved edges; S2. A rotating device is installed at the inside corner of the building. At least two metal components are stacked on the rotating device in sequence. The convex surfaces of the adjacent metal components away from the inside corner of the building are fixed. The rotating device is rotated so that the fixed convex surfaces are rotated to be closer to the inside corner of the building, while the unfixed convex surfaces are rotated to be convex surfaces away from the inside corner of the building and fixed. S3. Remove the rotating device so that the mating and fixing of adjacent metal components is placed in the reserved hole in the floor slab; S4. Backfill the reserved hole with grout, seal the bottom of the exhaust duct of the metal component assembly, and install a wind cap on the top; install a valve at the air inlet of each metal component.

2. The forming method for assembling exhaust channels of metal components according to claim 1, characterized in that: In step S1, each of the metal components has a folded edge at both the top and bottom. In step S2, when two adjacent metal components are stacked, the joint is locked and fixed by a locking member passing through the adjacent folded edge, or by welding, or by rolling the folded edge. Alternatively, in step S1, each of the metal components does not have a folded edge at the top and bottom. In step S2, when two adjacent metal components are stacked, the joint is fixed by welding, and a folded edge is welded at the stacked metal components.

3. The forming method for assembling exhaust channels of metal components according to claim 1, characterized in that: In step S2, if the two folds of two adjacent metal components are fixed together by a locking member, the step of filling the two folds with a sealant is also included. The sealant is a fireproof sealant, a weather-resistant sealant, or a structural sealant.

4. The forming method for assembling exhaust channels of metal components according to claim 1, characterized in that: In step S4, before backfilling the reserved hole with grout, an isolation layer is set between the outer wall of the metal component and the reserved hole.

5. The forming method for assembling exhaust channels of metal components according to claim 4, characterized in that: In step S4, setting the isolation layer involves applying a thin film, waterproof coating, grease, or metal sleeve to the outer wall of the metal component.

6. The forming method for assembling exhaust channels of metal components according to claim 1, characterized in that: In step S4, the air inlet of the metal component can be set when preparing the metal component, or it can be opened in step S4. A branch pipe is set at the air inlet, and a valve is installed at the air inlet of the branch pipe.

7. The forming method for assembling exhaust channels of metal components according to claim 1 or 6, characterized in that: In step S4, the valve is a fireproof check valve, a flow-directing fireproof check valve, a variable-pressure fireproof check valve, or an electrically controlled multi-functional valve.

8. The forming method for assembling exhaust channels of metal components according to claim 1, characterized in that: In step S1, when preparing the metal component, a flow guide or a flow guide and pressure transformer device consisting of a flow guide and a surrounding plate is provided at the outlet end of the air inlet of the metal component; and / or, in step S1, when preparing the metal component, reinforcing ribs or convex and concave reinforcing parts are added to the metal component.

9. The forming method for assembling exhaust channels of metal components according to claim 1, characterized in that: Following step S4, step S5 is also included, in which an L-shaped structure is provided around the exhaust duct of the metal component assembly. The L-shaped structure is formed by L-shaped precast cement components, blocks, or panels.

10. The forming method for assembling exhaust channels of metal components according to claim 9, characterized in that: A sound insulation layer is provided between the L-shaped structure and the metal component assembly exhaust duct, and the sound insulation layer is a sound insulation cotton and a sound insulation board layer.

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