Odor tainting prevention construction method for flue

Abstract

The invention belongs to the technical field of building decoration, and particularly relates to a flue odor tainting prevention construction method which comprises the following steps: S1, reserving a mounting hole and pre-burying a wall-attached sleeve; s2, a sealing ring is manufactured; s3, mounting a sealing ring; s4, fixing a sealing ring; and S5, installing the smoke pipe. According to the method, the problems of construction blind areas and positioning deviation during mounting of the flue close to the wall side are solved, the sealing performance and reliability of a flue connector are improved, workers can control lowering of a smoke pipe through a mounting hole of an upper floor, accurate mounting can be achieved in a narrow space, the manual alignment difficulty is reduced, and the method is particularly suitable for the layer-by-layer construction scene of the flue of a high-rise residence.

Description

Technical Field

[0001] The present invention belongs to the technical field of building decoration, and particularly relates to a construction method for preventing odor cross - smell in flues. Background Art

[0002] In the field of building construction, the flue system is an important infrastructure for ensuring air circulation and waste gas emission in buildings. However, during the flue construction process, especially the installation of flues on the side against the wall, there are many problems. First, flues are mostly arranged vertically along the building wall, and the gap between them and the shear wall will form a construction blind area, making it difficult for workers to carry out construction operations. Second, in high - rise residential buildings, flues need to be spliced layer by layer. If the alignment deviation between the upper and lower flues occurs, it will lead to misalignment of the interfaces. Third, existing flues generally adopt a planar direct - connection interface, relying only on sealing materials to form a barrier. When the shrinkage rate of the sealing material itself is relatively high, and dynamic loads are generated due to floor vibration and building settlement, cracks will appear at the interfaces of the upper and lower flues, forming an odor cross - smell channel. Flues are public exhaust pipes that run through vertically. Each household on each floor is connected to the flue through a branch pipe. When cracks appear at the interfaces of the upper and lower flues, the gas in the main flue will seep through the cracks into adjacent floors and then back - flow into other households' rooms.

[0003] Chinese Patent CN217439441U discloses a building, which includes at least two flue units. Each flue unit includes a floor slab, a load - bearing plate, and a flue. A reserved channel is provided on the floor slab. The flues of adjacent flue units are stacked, and two stacked flues are inserted into a reserved channel. A floor - slab bearing surface is provided on the floor slab, and a flue bearing surface is provided on the flue. The load - bearing plate is inserted into the reserved channel and abuts against the floor - slab bearing surface and the flue bearing surface. Among them, the floor - slab bearing surface is not parallel to the vertical plane, and / or the flue bearing surface is not parallel to the vertical plane. This patent has fewer processes, shorter construction time, lower labor costs, and does not require the removal of the load - bearing plate. However, this patent only realizes sealing through the contact between the load - bearing plate and the inclined surface and concrete filling. The load - bearing plate relies on the fixed inclination angles of the floor - slab bearing surface and the flue bearing surface for support. It is difficult to accurately control the lowering position of the flue in a narrow space against the wall, which is likely to cause local voids between the load - bearing plate and the bearing surface, or the flue interface to deviate from the center of the reserved channel, increasing the sealing difficulty. Summary of the Invention

[0004] The purpose of the present invention is to provide a construction method for preventing odor cross - smell in flues, which can solve the construction blind area and positioning deviation problems in the installation of flues on the side against the wall, improve the installation accuracy and efficiency of flues, and at the same time enhance the sealing performance and reliability of flues to prevent gas leakage and odor cross - smell in flues.

[0005] To achieve the above - mentioned purpose, the technical solution of the present invention is as follows: A construction method for preventing odor cross - smell in flues includes the following steps: S1. Reserved installation holes and embedded wall-attached sleeves: Reserve installation holes for flue installation on the floor slab, and pre-embed the wall-attached sleeves into the shear wall in advance. Each floor slab has an installation hole corresponding to a wall-attached sleeve, and the wall-attached sleeve is located on the side of the shear wall close to the installation hole. S2. Manufacture the sealing ring: The cross-section of the flue pipe is integrally in the shape of a square. A sealing ring is arranged on the flue pipe. The sealing ring includes an outer flange and an inner flange. A web one and a web two are arranged between the outer flange and the inner flange. The web one and the web two are arranged in parallel. The cavity between the outer flange, the inner flange, the web one and the web two forms a support sleeve. S3. Install the sealing ring: First install the lower flue pipe so that the top end of the lower flue pipe is aligned with the installation hole and the wall-attached sleeve of the current floor slab. Install a sealing strip at the top of the web one and the bottom of the web two respectively. Sleeve the sealing ring on the top end of the lower flue pipe so that the outer flange and the inner flange of the sealing ring are respectively attached to the outer wall and the inner wall of the lower flue pipe. S4. Fix the sealing ring: Pass the support rod through the support sleeve so that one end of the support rod extends deep into the wall-attached sleeve, and the other end of the support rod overlaps on the edge of the installation hole of the current floor slab. S5. Install the flue pipe: Fix the flue lifter at the edge of the installation hole of the upper floor slab. Vertically lift the flue pipe of the current layer to the installation height through the flue lifter and then lower it so that the end of the flue pipe of the current layer is embedded between the outer flange and the inner flange of the sealing ring.

[0006] Further, the height of the outer flange is between 50 - 150 mm, the height of the inner flange is 10 mm shorter than the height of the outer flange, the width of the web one is between 10 - 50 mm and the width of the web one is equal to the width of the web two, and the distance between the web one and the web two is between 6 - 60 mm.

[0007] Further, the sealing strip is filled in the groove between the outer flange and the inner flange. The width of the sealing strip is equal to the width of the web one, and the height of the sealing strip is between 10 - 30 mm.

[0008] Further, the wall-attached sleeve is provided with a positioning hole for cooperating with the support rod. The positioning hole is integrally in the shape of a cuboid, and the depth of the positioning hole embedded in the shear wall is between 60 - 100 mm.

[0009] Further, the flue lifter includes a base, a column is arranged on the base, a cross beam is arranged on the column, a bearing connecting plate is arranged at the end of the cross beam far from the column, and a lifting wheel and a redirecting wheel are arranged at the bottom of the cross beam. A traction rope is arranged on the lifting wheel and the redirecting wheel.

[0010] Further, the base is made of angle steel with a single-side width between 30 - 80 mm and a single-side thickness between 3 - 15 mm. The column is made of square pipe, I-beam or angle steel with a height between 500 - 2000 mm.

[0011] Further, the cross beam is made of square pipe, I-beam or angle steel, and the length of the cross beam is equal to the width of the smoke pipe.

[0012] Further, a diagonal brace is arranged on the base to cooperate with the column, and a supporting diagonal rod is arranged on the column to cooperate with the cross beam.

[0013] Further, the diameter of the lifting wheel is between 30 - 80 mm, and the diameter of the redirecting wheel is between 30 - 80 mm.

[0014] Further, a lifting connection seat is arranged on the smoke pipe. One end of the towing rope is provided with a lifting ring to cooperate with the lifting connection seat, and the other end of the towing rope sequentially bypasses the lifting wheel and the redirecting wheel and is connected to the towing device.

[0015] The beneficial effects of the present invention are as follows: By pre-burying an attached wall sleeve in the shear wall and corresponding it with the installation hole reserved in the floor slab to form a fixed support point, the operation problem of no working surface on the side against the wall in the traditional flue construction is solved, ensuring the accurate installation position of the flue and eliminating the construction blind area; the outer flange and the inner flange of the sealing ring respectively fit the inner and outer walls of the smoke pipe, and at the same time, a sealing strip is filled between the outer flange and the inner flange. Compared with the traditional plane direct connection interface, the sealing reliability is significantly improved, and the odor cross-talk channel is blocked.

[0016] The flue lifter is used to realize the vertical lifting and lowering of the smoke pipe, solve the alignment deviation problem during the layer-by-layer splicing of the high-rise flue, avoid the position deviation caused by manual handling, and improve the construction efficiency and safety; the overall structure of the flue lifter is stable and reliable, adapts to the narrow construction space, reduces the risk of high-altitude operation, and ensures the construction safety.

[0017] The support rod penetrates through the support sleeve and the attached wall sleeve, with one end lapping on the edge of the floor slab and the other end penetrating deep into the shear wall to form a cross-layer support structure, dispersing the self-weight of the flue and the external load, reducing the stress concentration at the interface, effectively reducing the influence of dynamic loads such as building settlement, and avoiding the generation of interface cracks.

[0018] The present invention solves the construction blind area and positioning deviation problems of the flue installation on the side against the wall, improves the sealing performance and reliability of the flue interface. Workers can control the lowering of the smoke pipe through the installation hole in the upper floor slab, and can also achieve accurate installation in a narrow space, reducing the difficulty of manual alignment, and is especially suitable for the construction scenario of high-rise residential flues. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a partial structural schematic diagram of the present invention; Figure 2 It is a schematic structural diagram of the mounting hole, flue lifter and towing rope in the present invention; Figure 3 It is a partial structural schematic diagram of the flue pipe in the present invention; Figure 4 It is a schematic structural diagram of the wall-attached sleeve and positioning hole in the present invention; Figure 5 It is a schematic structural diagram of the wall-attached sleeve, sealing ring and support rod in the present invention; Figure 6 It is a partial structural sectional view of the sealing ring, sealing strip and support rod in the present invention; In the figure: 1, mounting hole; 2, wall-attached sleeve; 3, shear wall; 4, sealing ring; 401, outer flange; 402, inner flange; 403, web one; 404, web two; 5, sealing strip; 6, flue pipe; 7, support rod; 8, flue lifter; 801, base; 802, column; 803, cross beam; 804, load-bearing connecting plate; 805, lifting wheel; 806, redirecting wheel; 9, towing rope; 10, positioning hole. Specific embodiments

[0020] The present invention will be specifically described and illustrated below in conjunction with embodiments.

[0021] As Figures 1-6 shown, the flue anti-odor cross-talk construction method of the present invention includes the following steps: S1. Reserve the mounting hole 1 and pre-embed the wall-attached sleeve 2: Reserve the mounting hole 1 for flue installation on the floor slab, and pre-embed the wall-attached sleeve 2 into the shear wall 3 in advance. Each floor slab's mounting hole 1 is respectively provided with a wall-attached sleeve 2, and the wall-attached sleeve 2 is located on the side of the shear wall 3 close to the mounting hole 1; S2. Manufacture the sealing ring 4: The cross-section of the flue pipe 6 is integrally arranged in a square shape. A sealing ring 4 is arranged on the flue pipe 6 in a matching manner. The sealing ring 4 includes an outer flange 401 and an inner flange 402. A web one 403 and a web two 404 are arranged between the outer flange 401 and the inner flange 402. The web one 403 and the web two 404 are arranged in parallel, and the cavity between the outer flange 401, the inner flange 402, the web one 403 and the web two 404 forms a support sleeve; S3. Install the sealing ring 4: First install the lower flue pipe 6, so that the top of the lower flue pipe 6 is aligned with the mounting hole 1 and the wall-attached sleeve 2 of the current floor slab; Install a sealing strip 5 on the top of the web one 403 and the bottom of the web two 404 respectively, and sleeved the sealing ring 4 on the top of the lower flue pipe 6, so that the outer flange 401 and the inner flange 402 of the sealing ring 4 are respectively in contact with the outer wall and the inner wall of the lower flue pipe 6; S4, fixed sealing ring 4: The support rod 7 is passed through the support sleeve, so that one end of the support rod 7 is deeply inserted into the wall-attached sleeve 2, and the other end of the support rod 7 is overlapped with the edge of the installation hole 1 of the floor slab of the current layer; S5. Install smoke pipe 6: The flue lifter 8 is fixed on the edge of the installation hole 1 of the upper floor slab, and the smoke pipe 6 of this layer is vertically lifted to the installation height by the flue lifter 8 and then lowered so that the end of the smoke pipe 6 of this layer is embedded between the outer flange 401 and the inner flange 402 of the sealing ring 4.

[0022] By pre-embedded wall sleeve 2, a fixed support point is provided for the flue on the wall side, so that workers can control the lowering of the smoke pipe 6 through the upper floor slab, achieve precise positioning in a narrow space, and avoid construction difficulties caused by the lack of a working surface on the wall side in traditional construction; the outer flange 401 and the inner flange 402 of the sealing ring 4 are respectively fitted to the inner and outer walls of the smoke pipe 6, and cooperate with the sealing strip 5 filled in the middle to form a multi-layer sealing structure. Compared with the traditional flat straight connection, it significantly reduces the cracks and odor risks caused by material shrinkage and building settlement; the flue lifter 8 can be used to vertically lift and lower the smoke pipe 6 to solve the alignment deviation problem when splicing high-rise layers one by one, avoid position deviation and high-altitude operation risks during manual handling, and improve construction efficiency; the support rod 7 passes through the support sleeve, which can disperse the dead weight and dynamic load of the smoke pipe 6, reduce stress concentration at the flue interface, and prevent cracks.

[0023] The height of the outer flange 401 is between 50-150 mm, the height of the inner flange 402 is 10 mm shorter than the height of the outer flange 401, the width of the web 1 403 is between 10-50 mm and the width of the web 1 403 is equal to the width of the web 2 404, and the distance between the web 1 403 and the web 2 404 is between 6-60 mm.

[0024] The web 1 403 and the web 2 404 enhance the structural strength of the sealing ring 4, so that the sealing ring 4 can more effectively resist vibration loads, ensure good sealing performance under harsh working conditions, and reduce the risk of leakage.

[0025] The sealing strip 5 is filled in the groove between the outer flange 401 and the inner flange 402. The width of the sealing strip 5 is equal to the width of the web 403, and the height of the sealing strip 5 is between 10-30 mm. The sealing strip 5 is filled in the groove space between the outer flange 401 and the inner flange 402 to ensure that the smoke pipe 6 and the sealing ring 4 are tightly fitted without gaps. After the smoke pipe 6 is installed, the outer flange 401 and the inner flange 402 are respectively fitted with the outer wall and the inner wall of the smoke pipe 6, and the fitting area is completely filled with the sealing strip 5 to avoid oil stains remaining in the gap after delivery and use.

[0026] The positioning hole 10 is arranged on the wall-attached sleeve 2 in cooperation with the support rod 7. The positioning hole 10 is integrally arranged in a cuboid shape, and the depth of the positioning hole 10 embedded in the shear wall 3 is between 60 and 100 mm. The positioning hole 10 can ensure that one end of the support rod 7 extends deep into the wall-attached sleeve 2 of the shear wall 3, enabling the support rod 7 to form a reliable cross-layer support, thereby dispersing the load of the smoke pipe 6 and reducing the dislocation or crack caused by load concentration at the flue interface.

[0027] The flue lifter 8 includes a base 801. A column 802 is arranged on the base 801, a cross beam 803 is arranged on the column 802, a bearing connecting plate 804 is arranged at one end of the cross beam 803 away from the column 802, a lifting wheel 805 and a redirecting wheel 806 are arranged at the bottom of the cross beam 803, and a traction rope 9 is arranged in cooperation with the lifting wheel 805 and the redirecting wheel 806. By changing the direction of the traction rope 9 through the lifting wheel 805 and the redirecting wheel 806, the vertical lifting and lowering of the smoke pipe 6 are realized, solving the difficulty of manual alignment during the layer-by-layer splicing of high-rise flues and avoiding the interface dislocation caused by position deviation; the base 801 can be fixed at the edge of the installation hole 1, occupying a small space, especially suitable for narrow construction environments against the wall, and reducing the difficulty of high-altitude operations. The bearing connecting plate 804 is located at one end of the cross beam 803 away from the column 802. When the flue lifter 8 lifts the smoke pipe 6 through the traction rope 9, the weight of the smoke pipe 6 will be transmitted to the lifting wheel 805 and the redirecting wheel 806 through the traction rope 9, and then the load will be dispersed to the cross beam 803 and the column 802, and then transmitted to the shear wall 3 and the floor through the bearing connecting plate 804 and the base 801 respectively, avoiding uneven local stress on the base 801 caused by single-point force and further improving the stability of the construction process.

[0028] The base 801 is made of angle steel. The single-side width of the angle steel is between 30 and 80 mm, and the single-side thickness of the angle steel is between 3 and 15 mm. The column 802 is made of square pipe, I-beam or angle steel, and the height of the column 802 is between 500 and 2000 mm.

[0029] The cross beam 803 is made of square pipe, I-beam or angle steel, and the length of the cross beam 803 is equal to the width of the smoke pipe 6.

[0030] The structure of the flue lifter 8 is simple, facilitating on-site assembly and handling; the base 801 is made of angle steel, the column 802 is made of square pipe, I-beam or angle steel, and the cross beam 803 is made of square pipe, I-beam or angle steel, ensuring that the flue lifter 8 does not deform or tilt when bearing the weight of the smoke pipe 6 and guaranteeing the safety and reliability of the lifting process.

[0031] A diagonal brace is arranged on the base 801 in cooperation with the column 802, and a support diagonal rod is arranged on the column 802 in cooperation with the cross beam 803. The diagonal brace and the support diagonal rod form a triangular stable structure, preventing the flue lifter 8 from tipping or deforming and ensuring the safety of high-altitude operations.

[0032] The diameter of the lifting wheel 805 is between 30 and 80 mm, and the diameter of the redirecting wheel 806 is between 30 and 80 mm.

[0033] A hoisting connection seat is arranged on the smoke pipe 6. One end of the towing rope 9 is provided with a lifting ring in cooperation with the hoisting connection seat. The other end of the towing rope 9 sequentially bypasses the lifting wheel 805 and the redirecting wheel 806 and is connected to the towing device. The hoisting connection seat cooperates with the lifting ring at the end of the towing rope 9 to transfer the weight of the smoke pipe 6 to the towing device, realizing the vertical lifting of the smoke pipe 6. After the smoke pipe 6 is installed in place, the hoisting connection seat can be removed from the smoke pipe 6 to eliminate the occupation of the internal ventilation passage of the smoke pipe 6 by the hoisting connection seat and maintain the smoothness inside the smoke pipe 6.

Claims

1. A flue odor prevention construction method, characterized in that: The following steps are involved: S1, reserved installation hole (1) and embedded wall sleeve (2): A mounting hole (1) for installing the flue is reserved on the floor slab, and a wall-attaching sleeve (2) is pre-buried in the shear wall (3), and a wall-attaching sleeve (2) is respectively provided corresponding to the mounting hole (1) of each floor slab, and the wall-attaching sleeve (2) is located on a side of the shear wall (3) close to the mounting hole (1); S2. Making the sealing ring (4): The smoke pipe (6) has an overall U-shaped cross section. The smoke pipe (6) is provided with a sealing ring (4). The sealing ring (4) comprises an outer flange (401) and an inner flange (402). A web plate 1 (403) and a web plate 2 (404) are provided between the outer flange (401) and the inner flange (402). The web plate 1 (403) and the web plate 2 (404) are provided in parallel. The cavity between the outer flange (401), the inner flange (402), the web plate 1 (403) and the web plate 2 (404) forms a supporting sleeve. S3. Install the sealing ring (4): First, install the lower smoke pipe (6) so that the top of the lower smoke pipe (6) is aligned with the installation hole (1) of the floor slab and the wall-mounting sleeve (2); A sealing strip (5) is installed at the top of the web 1 (403) and the bottom of the web 2 (404), and a sealing ring (4) is sleeved on the top of the lower smoke pipe (6) so that the outer flange (401) and the inner flange (402) of the sealing ring (4) are respectively in contact with the outer wall and the inner wall of the lower smoke pipe (6); S4, fixed sealing ring (4): The support rod (7) is passed through the support sleeve, so that one end of the support rod (7) is deeply inserted into the wall-attaching sleeve (2), and the other end of the support rod (7) is overlapped with the edge of the installation hole (1) of the floor slab of the current layer; S5. Install the smoke pipe (6): A flue lifter (8) is fixed to the edge of the installation hole (1) of the upper floor slab, and the smoke pipe (6) of the current floor is vertically lifted to the installation height by the flue lifter (8) and then lowered, so that the end of the smoke pipe (6) of the current floor is embedded between the outer flange (401) and the inner flange (402) of the sealing ring (4).

2. The flue odor prevention construction method according to claim 1 is characterized in that: The height of the outer flange (401) is between 50-150 mm, the height of the inner flange (402) is 10 mm shorter than the height of the outer flange (401), the width of the web 1 (403) is between 10-50 mm and the width of the web 1 (403) is equal to the width of the web 2 (404), and the distance between the web 1 (403) and the web 2 (404) is between 6-60 mm.

3. The flue odor prevention construction method according to claim 2 is characterized in that: The sealing strip (5) is filled in the groove between the outer flange (401) and the inner flange (402), the width of the sealing strip (5) is equal to the width of the web 1 (403), and the height of the sealing strip (5) is between 10 and 30 mm.

4. The flue odor prevention construction method according to claim 1, characterized in that: A positioning hole (10) is provided on the wall-attaching sleeve (2) in cooperation with the supporting rod (7); the positioning hole (10) is arranged in a rectangular parallelepiped as a whole; and the depth of the positioning hole (10) embedded in the shear wall (3) is between 60 mm and 100 mm.

5. The flue odor prevention construction method according to claim 1 is characterized in that: The flue lifter (8) comprises a base (801), a column (802) is arranged on the base (801), a crossbeam (803) is arranged on the column (802), a load-bearing connecting plate (804) is arranged at one end of the crossbeam (803) away from the column (802), a lifting wheel (805) and a redirecting wheel (806) are arranged at the bottom of the crossbeam (803), and a traction rope (9) is arranged on the lifting wheel (805) and the redirecting wheel (806).

6. The flue odor prevention construction method according to claim 5 is characterized in that: The base (801) is made of angle steel, the single side width of the angle steel is between 30-80 mm, the single side thickness of the angle steel is between 3-15 mm, the column (802) is made of square tube, I-beam or angle steel, and the height of the column (802) is between 500-2000 mm.

7. The flue odor prevention construction method according to claim 5, characterized in that: The cross beam (803) is made of a square tube, an I-beam or an angle steel, and the length of the cross beam (803) is equal to the width of the smoke pipe (6).

8. The flue odor prevention construction method according to claim 5, characterized in that: The base (801) is provided with an oblique brace in cooperation with the upright column (802), and the upright column (802) is provided with an oblique supporting rod in cooperation with the cross beam (803).

9. The flue odor prevention construction method according to claim 5, characterized in that: The diameter of the lifting wheel (805) is between 30-80 mm, and the diameter of the redirecting wheel (806) is between 30-80 mm.

10. The flue odor prevention construction method according to claim 5, characterized in that: A lifting connection seat is provided on the smoke pipe (6), one end of the traction rope (9) is provided with a lifting ring in coordination with the lifting connection seat, and the other end of the traction rope (9) is passed through the lifting wheel (805) and the redirecting wheel (806) in sequence to be connected to the traction device.

Images