L-shaped cement prefabricated flue connected with structural wall and mounting method

Abstract

The invention discloses an L-shaped cement prefabricated flue connected with a structural wall and an installation method. A plastering pressing groove 3 is formed in the outer portion of the L-shaped prefabricated flue 1. The galvanized iron sheet 4 is clamped into the plastering pressing groove 3 and tightly attached to the structural wall body 2. The pre-buried galvanized iron sheet 4 is in anchoring connection with the structural wall body 2 through the gun nails 5; the galvanized iron sheet 4 is welded with the galvanized welded wire mesh 6 in the L-shaped prefabricated flue 1; a horizontal joint of each layer of L-shaped prefabricated flue 1 is reserved on the upper floor of a floor plate 10 and is tightly blocked by polymer mortar, and a gap between the horizontal joint and the floor plate 10 is made of C20 fine aggregate concrete 7; and joints between the two sides of the L-shaped prefabricated flue 1 and the structure of the structural wall 2 are blocked by using anti-crack mortar 9. According to the construction method, it is ensured that the L-shaped prefabricated flue 1 and the structural wall 2 are tightly connected, the construction method has the advantages of being firm in installation, good in integrity, reliable in quality and the like, the problem that the integrity of the L-shaped prefabricated flue 1 is poor is well solved, and the installation quality of the L-shaped prefabricated flue 1 is improved.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering, in particular to an L-shaped cement prefabricated flue connected with a structural wall and an installation method thereof. Background Art

[0002] Nowadays, the use of L-shaped prefabricated flues can reduce costs by nearly half, and the process is simple, the production time is greatly shortened, and construction overlap in a vertical position is more convenient.

[0003] However, since the L-shaped prefabricated flue needs to be reliably connected to the wall to avoid shaking of the flue due to loose installation, it is necessary to ensure that it is in close contact with the structural wall. There are currently no relevant specifications or standards for the specific installation method, resulting in a lack of basis and quality standards during on-site construction, which is prone to quality risks.

[0004] In order to solve the above problems existing in the prior art, the present invention provides an L-shaped cement prefabricated flue connected to a structural wall. Summary of the invention

[0005] In order to solve the above problems existing in the prior art, the present invention provides an L-shaped cement prefabricated flue connected to a structural wall and an installation method.

[0006] The technical solution adopted by the present invention to solve its technical problem is:

[0007] An L-shaped cement prefabricated flue connected to a structural wall, wherein a plastering groove 3 is arranged on the outside of the L-shaped prefabricated flue 1; a galvanized iron sheet 4 is inserted into the plastering groove 3 and is tightly attached to the structural wall 2; the pre-buried galvanized iron sheet 4 is anchored and connected to the structural wall 2 by nails 5; the galvanized iron sheet 4 is welded to the galvanized welded mesh 6 in the L-shaped prefabricated flue 1; the horizontal joints of each layer of the L-shaped prefabricated flue 1 are left on the floor slab 10 and are tightly sealed with polymer mortar, and the gap between the floor slab 10 is sealed with C20 fine stone concrete 7; the joints between the two sides of the L-shaped prefabricated flue 1 and the structural wall 2 are sealed with anti-cracking mortar 9.

[0008] The present invention also has the following additional technical features:

[0009] As a further specific optimization of the technical solution of the present invention: the plastering groove is 310 mm thick, 100 mm wide, and has the same height as the structural wall 2.

[0010] As a further specific optimization of the technical solution of the present invention: As a further specific optimization of the technical solution of the present invention: a triangular support pad is welded with steel plates and steel bars at the bottom of the L-shaped prefabricated flue 1, and is padded on the L-shaped prefabricated flue 1.

[0011] As a further specific optimization of the technical solution of the present invention: the corners on both sides of the L-shaped prefabricated flue 1 are supported by supporting devices 8.

[0012] As a further specific optimization of the technical solution of the present invention: after the anti-cracking mortar 9 is applied, it is flush with the structural wall 2, and the L-shaped prefabricated flue 1 is perpendicular to the structural wall 2.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] Advantage 1: The present invention adopts a reserved plastering groove 3 on the structural wall 2 with a width of 100 mm and a depth of 10 mm. During installation, the pre-buried galvanized iron sheet 4 of the L-shaped prefabricated flue 1 is placed in the plastering groove 3 to prevent the L-shaped prefabricated flue 1 from moving. The pre-buried galvanized iron sheet 4 of the L-shaped prefabricated flue 1 is fixed to the structural wall 2 with nails 5, and the internal angle joints are fully hung with fiberglass mesh cloth. The construction method of 10 mm anti-cracking mortar 9 finishing can ensure firm installation, the anti-cracking mortar 9 plastering surface is flush with the structural wall 2, the L-shaped prefabricated flue 1 is perpendicular to the structural wall 2, and the connection with the structural wall 2 is good in integrity, meeting the quality requirements.

[0015] Advantage 2: This construction method ensures that the L-shaped prefabricated flue 1 is tightly connected to the structural wall 2, and has the advantages of firm installation, good integrity, and reliable quality. It effectively solves the problem of poor integrity of the L-shaped prefabricated flue 1 and improves the installation quality of the L-shaped prefabricated flue 1. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1-Figure 3 It is a structural schematic diagram of the present invention;

[0017] Figure 4 It is a detailed diagram of the installation node of the present invention;

[0018] Figure 5 A three-dimensional detailed drawing of the installation of the present invention;

[0019] Figure 6 It is a transport front view of the present invention;

[0020] Figure 7 This is a schematic diagram of the loading and transportation of the present invention;

[0021] Explanation of the reference numerals in the accompanying drawings: L-shaped prefabricated flue 1, structural wall 2, plastering groove 3, galvanized iron sheet 4, nails 5, galvanized welded mesh 6, C20 fine stone concrete 7, supporting device 8, anti-cracking mortar 9, floor slab 10, carriage 11, pads 12, binding belts 13. DETAILED DESCRIPTION

[0022] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0023] The above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention but merely represents selected embodiments of the present invention.

[0024] Example 1

[0025] An L-shaped cement prefabricated flue connected to a wall structure is constructed, wherein a plastering groove 3 is arranged on the outside of the L-shaped prefabricated flue 1; a galvanized iron sheet 4 is inserted into the plastering groove 3 and is tightly attached to the structural wall 2; the pre-buried galvanized iron sheet 4 is anchored and connected to the structural wall 2 by nails 5; the galvanized iron sheet 4 is welded to the galvanized welded mesh 6 in the L-shaped prefabricated flue 1; the horizontal joints of each layer of the L-shaped prefabricated flue 1 are left on the floor slab 10 and are tightly sealed with polymer mortar, and the gap between the floor slab 10 is sealed with C20 fine stone concrete 7; the joints between the two sides of the L-shaped prefabricated flue 1 and the structural wall 2 are sealed with anti-cracking mortar 9.

[0026] Optimized: The plaster groove is 310mm thick, 100mm wide, and the same height as the structural wall 2.

[0027] Optimized: A triangular support pad is welded with steel plates and steel bars at the bottom of the L-shaped prefabricated flue 1 and is placed on the L-shaped prefabricated flue 1 .

[0028] Optimized: The corners on both sides of the L-shaped prefabricated flue 1 are supported by supporting devices 8.

[0029] Optimized: After the anti-cracking mortar 9 is applied, it is flush with the structural wall 2, and the L-shaped prefabricated flue 1 is perpendicular to the structural wall 2.

[0030] Example 2

[0031] A method for installing an L-shaped cement prefabricated flue connected to a wall structure comprises the following steps:

[0032] Step 1: When the structural wall 2 of the L-shaped prefabricated flue 1 needs to be constructed, according to the design size of the L-shaped prefabricated flue 1, reserve a plastering groove 3 with a thickness of 10mm, a width of 100mm and the same height as the wall starting from the outer diameter of the L-shaped prefabricated flue 1.

[0033] Step 2: Insert the galvanized iron sheet 4 reserved on the L-shaped prefabricated flue 1 into the plastering groove 3, close to the structural wall 2, and then use nails 5 to anchor the embedded galvanized iron sheet 4 to the structural wall 2. The galvanized iron sheet 4 is firmly welded to the galvanized welded mesh 6 in the L-shaped prefabricated flue 1. The L-shaped prefabricated flue 1 is embedded with 20mm and exposed with 80mm. The first line starts at 200mm from the ground, and the rest are set at intervals of 500mm. If the structural wall 2 is a masonry wall, prefabricated concrete blocks can be laid according to the design size of the L-shaped prefabricated flue 1 and the height of the embedded iron sheet to facilitate firm fixation.

[0034] Step 3: The L-shaped prefabricated flue 1 is installed layer by layer from bottom to top. When installing the first floor, use 1:2 cement mortar to level the ground, and use steel plates and steel bars to weld a triangular support pad and place it on the L-shaped prefabricated flue 1.

[0035] Step 4: The horizontal joints of the L-shaped prefabricated flue 1 on each floor are left on the floor slab 10 and sealed tightly with polymer mortar. The gaps between the flue slab 10 are filled with C20 fine stone concrete 7. To ensure the overall force requirements, starting from the first floor, supporting devices 8 are used at the corners on both sides every 3 floors of residential buildings, and supporting devices 8 are used at the corners on both sides every 2 floors of public buildings.

[0036] Step 5: After the installation is completed, the joints between the two sides of the L-shaped prefabricated flue 1 and the structural wall 2 are sealed with anti-cracking mortar 9. 100mm wide fiberglass mesh cloth is installed on both sides. After applying the anti-cracking mortar 9, it is flush with the structural wall 2 and the L-shaped prefabricated flue 1 is perpendicular to the structural wall 2.

[0037] Example 3

[0038] Transportation method of L-type cement prefabricated flue:

[0039] Step 1: During the transportation of the L-shaped prefabricated components, the L-shaped prefabricated flue 1 is placed upright in the carriage 11, with square wood pads used for the bottom. Every 6 pieces of the L-shaped prefabricated flue 1 are stacked together and packed into bundles using packing tape.

[0040] Step 2: Use 20mm thick pads 12 to isolate each bundle vertically. The pads 12 should be parallel to the railings of the carriage 11. Use 80mm thick pads 12 to separate each column. Use 100mm high pads 12 at the bottom of the middle column and 50mm high pads 12 on both side columns. Make the middle column and the galvanized iron sheets 4 on both sides staggered by 50mm to ensure that the L-shaped prefabricated flue 1 and the galvanized iron sheets 4 are not damaged by collision during transportation, and use the truck's binding straps 13 to firmly tie them to the truck's railings.

[0041] Step 3: Plastering groove 3 of structural wall 2: When aluminum template is used for structural wall 2 template, 10*100mm plastering groove 3 profile can be used, and groove can be reserved; when wooden template is used, 100mm wide wooden strips can be used, and groove can be reserved; when plastering the wall later, 100mm wide wooden strips can be used, and groove can be reserved.

[0042] Step 4: Quality control of cast-in-place structural wall 2: The template of structural wall 2 is installed strictly in accordance with the requirements of the specification. After the template of structural wall 2 is installed, the flatness and verticality of the template of structural wall 2 are checked by infrared. Before installing the L-shaped prefabricated flue 1, the flatness and verticality of the structural wall 2 are checked again. If the flatness and verticality of the wall structure exceed the allowable deviation, the wall surface should be polished and repaired first. After the allowable deviation is met, the L-shaped prefabricated flue 1 can be installed to ensure the installation quality. Post-walling quality control: When laying walls and plastering, strictly follow the requirements of the specification to ensure that the overall verticality and flatness of the structural wall 2 meet the installation requirements of the L-shaped prefabricated flue 1.

[0043] Step 5: During installation on site, the cement performance of the L-shaped prefabricated flue 1, the performance of the hot-dip galvanized welded mesh 6, the performance of the galvanized iron sheet 4, and the test report on the fire resistance of the L-shaped prefabricated flue 1 should be checked. The cement performance of the L-shaped prefabricated flue 1 should comply with the provisions of GB175, the performance of the hot-dip galvanized welded mesh 6 should comply with the provisions of QBT2897, and the fire resistance should comply with the requirements of the standard for residential kitchen and bathroom smoke exhaust duct products JGT194-2018.

[0044] Step 6: Check that there is no exposed wire mesh, honeycomb, collapse or hollowing on the inner and outer surfaces of the L-shaped prefabricated flue 1.

[0045] Step 7: After the L-shaped prefabricated flue 1 on the first floor is installed in place, the elevation and verticality of the L-shaped prefabricated flue 1 should be checked.

Claims

1. An L-shaped cement prefabricated flue connected to a structural wall, characterized in that: A plastering groove (3) is arranged outside the L-shaped prefabricated flue (1); a galvanized iron sheet (4) is inserted into the plastering groove (3) and is closely attached to the structural wall (2); the pre-buried galvanized iron sheet (4) is anchored and connected to the structural wall (2) by means of nails (5); the galvanized iron sheet (4) is welded to the galvanized electric welded mesh (6) inside the L-shaped prefabricated flue (1); the horizontal joints of each layer of the L-shaped prefabricated flue (1) are left on the floor slab (10) and are tightly sealed with polymer mortar, and the gap between the floor slab (10) is filled with C20 fine stone concrete (7); the joints between the two sides of the L-shaped prefabricated flue (1) and the structural wall (2) are sealed with anti-cracking mortar (9).

2. The L-shaped cement prefabricated flue connected to the structural wall according to claim 1, characterized in that: The plastering groove (3) is 10 mm thick, 100 mm wide, and has the same height as the structural wall (2).

3. The L-shaped cement prefabricated flue connected to the structural wall according to claim 1, characterized in that: A triangular support pad is welded on the bottom of the L-shaped prefabricated flue (1) using steel plates and steel bars, and is placed on the L-shaped prefabricated flue (1).

4. The L-shaped cement prefabricated flue connected to a structural wall according to claim 1, characterized in that: The corners on both sides of the L-shaped prefabricated flue (1) are supported by supporting devices (8).

5. The L-shaped cement prefabricated flue connected to the structural wall according to claim 1, characterized in that: After the anti-cracking mortar (9) is applied, it is flush with the structural wall (2), and the L-shaped prefabricated flue (1) is perpendicular to the structural wall (2).

6. A method for installing an L-shaped cement prefabricated flue connected to a wall structure, characterized in that: The following steps are included: Step (1): when the structural wall (2) of the L-shaped prefabricated flue (1) is to be constructed, according to the design size of the L-shaped prefabricated flue (1), a plastering groove (3) with a thickness of 10 mm, a width of 100 mm, and the same height as the wall is reserved starting from the outer diameter of the L-shaped prefabricated flue (1); Step (2): insert the galvanized iron sheet (4) reserved on the L-shaped prefabricated flue (1) into the plastering groove (3) and make it close to the structural wall (2), then use nails (5) to anchor the embedded galvanized iron sheet (4) to the structural wall (2), and weld the galvanized iron sheet (4) to the galvanized electric welded mesh (6) in the L-shaped prefabricated flue (1) firmly. The L-shaped prefabricated flue (1) is embedded with 20 mm and exposed with 80 mm. The first line starts from 200 mm from the ground, and the rest are set every 500 mm. If the structural wall (2) is a masonry wall, prefabricated concrete blocks can be laid according to the design size of the L-shaped prefabricated flue (1) and the height of the embedded iron sheet to facilitate firm fixation. Step (3): The L-shaped prefabricated flue (1) is installed layer by layer from bottom to top. When installing the first layer, the ground is leveled with 1:2 cement mortar, and a triangular support pad is welded with a steel plate and steel bars and placed on the L-shaped prefabricated flue (1); Step (4): the horizontal joints of the L-shaped prefabricated flue (1) on each floor are left on the floor slab (10), and are tightly sealed with polymer mortar. The gap between the flue and the floor slab (10) is filled with C20 fine stone concrete (7). To ensure the overall force requirements, starting from the first floor, the supporting device (8) is used to support the corners on both sides of the residential building every (3) floors, and the supporting device (8) is used to support the corners on both sides of the public building every (2) floors; Step (5): After the installation is completed, the joints between the two sides of the L-shaped prefabricated flue (1) and the structural wall (2) are sealed with anti-cracking mortar (9), and 100 mm wide fiberglass mesh cloth is placed on both sides. After the anti-cracking mortar (9) is applied, it is flush with the structural wall (2) and the L-shaped prefabricated flue (1) is perpendicular to the structural wall (2).

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