CN113123604A - Method for mounting flue in stages for building - Google Patents

Method for mounting flue in stages for building Download PDF

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Publication number
CN113123604A
CN113123604A CN202010043916.0A CN202010043916A CN113123604A CN 113123604 A CN113123604 A CN 113123604A CN 202010043916 A CN202010043916 A CN 202010043916A CN 113123604 A CN113123604 A CN 113123604A
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CN
China
Prior art keywords
stage
flue
exhaust pipe
prefabricated exhaust
prefabricated
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Pending
Application number
CN202010043916.0A
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Chinese (zh)
Inventor
王启定
曹正祥
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HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY CO LTD
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HANGZHOU XIAOMI ENVIRONMENT TECHNOLOGY CO LTD
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Priority to CN202010043916.0A priority Critical patent/CN113123604A/en
Publication of CN113123604A publication Critical patent/CN113123604A/en
Pending legal-status Critical Current

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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F17/00—Vertical ducts; Channels, e.g. for drainage
    • E04F17/02—Vertical ducts; Channels, e.g. for drainage for carrying away waste gases, e.g. flue gases; Building elements specially designed therefor, e.g. shaped bricks or sets thereof
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/14—Conveying or assembling building elements
    • E04G21/16—Tools or apparatus
    • E04G21/162—Handles to carry construction blocks

Abstract

The invention relates to an installation method for installing flues in stages for buildings, which aims to solve the problem of installing flues in stages for buildings. The method for installing the flue in stages in the building is characterized by comprising the following steps: preparing a lift, a traction rope, a bottom bracket and at least two sections of prefabricated exhaust pipes before installation, and selecting the uppermost floor of the building in the first stage as the installation floor of the lift; the first stage flue installation method is characterized in that a bottom bracket and the bottom of a prefabricated exhaust pipe located at the lowest part of a flue are connected into a whole, the bottom bracket is connected with a lifter through a traction rope, the bottom bracket is placed into a mounting hole formed in the height direction of a building floor slab, the lifter works, the prefabricated exhaust pipe in the first stage moves from top to bottom along with the traction rope through the bottom bracket by lowering the traction rope, and when adjacent prefabricated exhaust pipes in the first stage are connected into a whole and the bottom of the bottom bracket contacts with a barrier of the building, the lifter stops working.

Description

Method for mounting flue in stages for building
Technical Field
The invention relates to an installation method for installing a flue in stages in a building.
Background
The existing part of buildings need to shorten the construction period, and need to finish the already-built low-rise houses on one side and build reinforced concrete materials on the other side for the high-rise houses which are not built, namely, the building and the finishing of the buildings are carried out in the same time period.
The building comprises a floor slab and a flue, wherein the floor slab divides the building into different floors, and the flue penetrates through the floor slab so as to discharge the oil smoke of the different floors to the outside of the building. At present, the flues of some buildings are made of metal, specifically: the metal pipelines are connected into a whole through welding to form a metal flue.
For the low-rise dwelling houses which are built already, the flue needs to be installed in the low-rise dwelling houses before the low-rise dwelling houses are finished, and for the high-rise dwelling houses which are not built yet, the installation position of the flue needs to be reserved, however, the existing metal flue has not been proposed to be installed in the flue in stages.
Disclosure of Invention
The invention aims to provide an installation method for installing flues in stages for a building, so as to solve the problem of installing flues in stages for the building.
In order to solve the above problems, the present invention provides the following technical solutions:
the method for installing the flue in stages in the building is characterized by comprising the following steps:
preparing a lift, a traction rope, a bottom bracket and at least two sections of prefabricated exhaust pipes before installation, and selecting the uppermost floor of the building in the first stage as the installation floor of the lift;
the first stage flue installation method comprises the steps that a bottom bracket and the bottom of a prefabricated exhaust pipe located at the lowest part of a flue are connected into a whole, the bottom bracket is connected with a lifter through a traction rope, the bottom bracket is placed into an installation hole formed in the height direction of a building floor slab, the lifter works, the traction rope is lowered, so that a prefabricated exhaust pipe in the first stage moves from top to bottom along with the traction rope through the bottom bracket, when adjacent prefabricated exhaust pipes in the first stage are connected into a whole and the bottom of the bottom bracket contacts with a barrier of the building, the lifter stops working, wherein the top of the prefabricated exhaust pipe located at the highest part of the flue in the first stage is higher than the uppermost floor slab of the building in the first stage when the lifter stops working;
judging whether the second stage flue needs to prepare an intermediate bracket before installation, if so, entering first preparation work before the second stage installation, and if not, entering second preparation work before the second stage installation;
the first preparation work before the installation of the second stage flue is to prepare a lifter, a traction rope, a middle bracket and at least one section of prefabricated exhaust pipe before the installation, and the uppermost floor of the second stage of the building is selected as the installation floor of the lifter;
when the flue comprises a section of prefabricated exhaust pipe in the second stage, connecting an intermediate bracket and the bottom of the prefabricated exhaust pipe positioned at the lowest part of the second stage of the flue into a whole, connecting the intermediate bracket with a lifter through a traction rope, placing the intermediate bracket into a mounting hole formed in the uppermost floor slab of the second stage of the building in the height direction, enabling the prefabricated exhaust pipe in the second stage to move from top to bottom along with the traction rope through the intermediate bracket by lowering the traction rope, and stopping the lifter when the bottom of the intermediate bracket is in contact with the top of the prefabricated exhaust pipe positioned at the uppermost part of the flue in the first stage;
when the flue comprises two or more than two sections of prefabricated exhaust pipes in the second stage, the middle bracket is connected with the bottom of the prefabricated exhaust pipe positioned at the lowest part of the second stage of the flue into a whole, the middle bracket is connected with the elevator through the traction rope, the middle bracket is placed into a mounting hole formed in the uppermost floor slab of the second stage of the building in the height direction, the elevator works, the prefabricated exhaust pipes in the second stage move from top to bottom along with the traction rope through the middle bracket by lowering the traction rope, and when the prefabricated exhaust pipes in the adjacent second stage are connected into a whole and the bottom of the middle bracket is in contact with the top of the prefabricated exhaust pipe positioned at the uppermost part of the first stage, the elevator stops working.
A second preparation work before the installation of the second stage flue, namely, preparing a lifter, a traction rope and at least one section of prefabricated exhaust pipe before the installation, and selecting the uppermost floor of the building in the second stage as an installation floor of the lifter;
when the flue comprises a section of prefabricated exhaust pipe in the second stage, the prefabricated exhaust pipe in the second stage of the flue is connected with a lifter through a traction rope, the prefabricated exhaust pipe in the second stage of the flue is placed into a mounting hole formed in the uppermost floor slab of the second stage of the building in the height direction, the lifter works, the prefabricated exhaust pipe in the second stage moves from top to bottom along with the traction rope by lowering the traction rope, and when the bottom of the prefabricated exhaust pipe in the second stage contacts the flue and is positioned at the top of the prefabricated exhaust pipe in the first stage, the lifter stops working;
when the flue comprises two or more than two sections of prefabricated exhaust pipes in the second stage, the prefabricated exhaust pipe positioned at the lowest part of the second stage of the flue is connected with the elevator through the traction rope, the prefabricated exhaust pipe positioned at the lowest part of the second stage of the flue is placed into the mounting hole formed in the uppermost floor slab of the second stage of the building in the height direction, the elevator works, the prefabricated exhaust pipes in the second stage move from top to bottom along with the traction rope by lowering the traction rope, and when the prefabricated exhaust pipes in the adjacent second stage on the flue are connected into a whole and the prefabricated exhaust pipe positioned at the lowest part of the second stage of the flue is in contact with the top of the prefabricated exhaust pipe positioned at the uppermost part of the flue in the first stage, the elevator stops working.
The method for installing the staged flue of the building at least comprises the following three steps: 1. a first stage flue installation step; 2. judging whether the second stage flue needs to prepare an intermediate bracket before installation; 3. and a second stage flue installation step. The design is carried out in such a way that the problem that the flue is installed in stages in the building is solved.
The second stage flue installation step mainly aims at solving the connection problem between the second stage flue and the first stage flue and the connection problem between adjacent prefabricated exhaust pipes in the second stage; the installation step of the first stage flue is mainly used for solving the connection problem between adjacent prefabricated exhaust pipes in the first stage, the connection problem between a first stage bracket and the lowermost prefabricated exhaust pipe in the first stage and the connection problem between the flue and a barrier of a building, wherein the installation step of the first stage flue comprises the following steps: preparation work before installation of a first-stage flue, and 2, an installation method of a first-stage prefabricated exhaust pipe.
The preparation work before the first stage flue is installed mainly involves: an elevator is prepared, and the uppermost floor of the building is selected as the installation floor of the elevator. When the mounting floor of the elevator is the uppermost floor of the building, the two adjacent prefabricated exhaust pipes can be connected into a whole at the uppermost floor of the building and then placed into the mounting hole. By means of the design, the problem that a connecting tool (comprising a welding tool, an electric tool, a wrench and the like) is difficult to extend into a space between the inner wall of the wall and the outer wall of the exhaust pipe in the process of connecting adjacent metal pipelines is solved by changing the positions of two adjacent prefabricated exhaust pipes in the connecting process.
The preparation work before the first stage flue is installed also involves: the pull-cord and the bracket are prepared. The haulage rope is used for connecting bracket and lift, and the bracket is used for holding prefabricated blast pipe, and the lift makes bracket and prefabricated blast pipe move down gradually along the building through the haulage rope, stops work when the bracket contacts with the barrier of building bottom. In the invention, the bracket has the following advantages: 1. the bracket increases the deformation resistance of the flue, and the bracket is arranged at the bottom of the lowest prefabricated exhaust pipe, so that the deformation resistance of the lowest prefabricated exhaust pipe can be effectively increased; 2. the bracket changes the installation position of the flue, and the bracket is installed below the lowest prefabricated exhaust pipe, so that two adjacent prefabricated exhaust pipes can be connected into a whole at the uppermost floor of a building and then are placed into the installation hole; 3. the bracket is convenient for collecting liquid foreign matters or solid foreign matters in the flue, the bracket seals the opening of the prefabricated exhaust pipe at the bottommost part, and the bracket is connected with a drain pipe externally to discharge the liquid foreign matters or the solid foreign matters in the flue.
When the second stage flue is required to be installed, the top of the flue at the uppermost prefabricated exhaust pipe in the first stage is higher than the uppermost floor of the building in the first stage when the elevator stops working (the premise of stopping working of the elevator is that adjacent prefabricated exhaust pipes in the first stage are connected into a whole and the bottom of the bottom bracket contacts with a barrier of the building). So design, so design through "change two sections adjacent prefabricated blast pipes in the position that the connection in-process was located" to overcome connecting tool and being difficult for stretching into the problem between the outer wall of the inner wall of wall and blast pipe at the in-process of connecting adjacent metal pipeline.
Further, when the flue comprises two or more stages and the flue in the current stage needs to be subjected to the next stage, the top of the prefabricated exhaust pipe, which is positioned at the top in the current stage, of the flue is higher than the uppermost floor of the building in the current stage when the elevator stops working; when the flue comprises two or more stages and the flue of the current stage does not need to be subjected to the next stage, the top of the prefabricated exhaust pipe of the flue, which is positioned at the top in the current stage, is lower than the uppermost floor of the building in the current stage when the elevator stops working.
Further, when the flue includes two and more stages, and when the flue of current stage still need carry out next stage, judge whether the flue is located the top of the prefabricated blast pipe of the top at the current stage and correspond with the bearing wall, if the flue is located the top of the prefabricated blast pipe of the top at the current stage and corresponds with the bearing wall, then the flue is located the top inboard of the prefabricated blast pipe of the top at the current stage and sets up at least one welded plate, if the flue is located the top of the prefabricated blast pipe of the top at the current stage and does not correspond with the bearing wall, then the flue is located the top outside of the prefabricated blast pipe of the top at the current stage and sets up annular welded plate.
Further, the bracket is connected with the bottom of the prefabricated exhaust pipe into a whole through welding.
Further, when two or more sections of prefabricated exhaust pipes are prepared in preparation before installation and are metal pipes, the bottom of the metal pipe above the adjacent prefabricated exhaust pipe is connected with the top of the metal pipe below the adjacent prefabricated exhaust pipe into a whole through welding.
Furthermore, the top of the prefabricated exhaust pipe and the bottom of the prefabricated exhaust pipe are provided with welded plates which form a certain angle with the height direction of the prefabricated pipe exhaust pipe, and the welded plate at the bottom of the prefabricated exhaust pipe above the adjacent prefabricated exhaust pipe and the welded plate at the top of the prefabricated exhaust pipe below the adjacent prefabricated exhaust pipe are connected into a whole through welding.
Furthermore, the welding position where the bottom of the prefabricated exhaust pipe above the adjacent prefabricated exhaust pipe and the top of the prefabricated exhaust pipe below the adjacent prefabricated exhaust pipe are connected into a whole through welding is located in the floor slab, and fillers with at least two different connection strengths are filled between the welding position where the bottom of the prefabricated exhaust pipe above the adjacent prefabricated exhaust pipe and the top of the prefabricated exhaust pipe below the adjacent prefabricated exhaust pipe are connected into a whole through welding and the floor slab.
Furthermore, the outer side wall of at least one section of prefabricated exhaust pipe is fixedly connected with the top of the corresponding floor slab through an angle code support, and the at least one section of prefabricated exhaust pipe is abutted to the top of the corresponding floor slab through the angle code support.
Furthermore, a cleaning opening is formed in the side wall of the prefabricated exhaust pipe, a drain opening is formed in the bracket and communicated with the cleaning opening through the prefabricated exhaust pipe, the spacing distance between any two points on the wall of the cleaning opening is not less than 8cm, and the minimum spacing distance between the drain opening and the cleaning opening is not more than 50 cm.
Furthermore, a smoke inlet hole is formed in the outer side wall of the at least one section of prefabricated exhaust pipe, and a flange used for being connected with an exhaust valve is arranged on the outer side wall of the prefabricated exhaust pipe surrounding the smoke inlet hole.
Drawings
Fig. 1 is a schematic view of the installation structure of the staged flue of the building in the preferred embodiment of the invention.
Detailed Description
The technical solutions of the embodiments of the present invention are explained and illustrated below with reference to the drawings of the embodiments of the present invention, but the embodiments described below are only preferred embodiments of the present invention, and not all embodiments. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without any creative efforts belong to the protection scope of the invention.
Referring to fig. 1, the method for installing the flue in stages in the building is characterized by comprising the following steps:
preparing a lift 1, a traction rope 2, a bottom bracket 3 and at least two sections of prefabricated exhaust pipes 4 before installation, and selecting the uppermost floor 7 of the building in the first stage as an installation floor of the lift 1;
the first stage flue installation method comprises the steps that a bottom bracket 3 and the bottom of a prefabricated exhaust pipe 4 located at the lowest part of a flue are connected into a whole, the bottom bracket 3 is connected with a lifter 1 through a traction rope 2, the bottom bracket 3 is placed into an installation hole 71 formed in a building floor 7 in the height direction, the lifter 1 works, the prefabricated exhaust pipe 4 in the first stage moves from top to bottom along with the traction rope 2 through the bottom bracket 3 by lowering the traction rope 2, when the adjacent prefabricated exhaust pipes 4 in the first stage are connected into a whole and the bottom of the bottom bracket 3 contacts with an obstacle of a building, the lifter 1 stops working, wherein the top of the prefabricated exhaust pipe 4 located at the top in the first stage is higher than the uppermost floor 7 of the building in the first stage when the lifter 1 stops working;
judging whether an intermediate bracket (not shown in the figure) needs to be prepared before the second stage flue is installed, if the intermediate bracket needs to be prepared, entering first preparation work before the second stage flue is installed, and if the intermediate bracket does not need to be prepared, entering second preparation work before the second stage flue is installed;
the first preparation work before the installation of the second stage flue is to prepare a lifter 1, a traction rope 2, an intermediate bracket and at least one section of prefabricated exhaust pipe 4 before the installation, and select the uppermost floor 7 of the second stage of the building as the installation floor of the lifter 1;
when the flue comprises a section of prefabricated exhaust pipe 4 in the second stage, the method for installing the flue comprises the steps that an intermediate bracket and the bottom of the prefabricated exhaust pipe 4 positioned at the lowest part of the second stage of the flue are connected into a whole, the intermediate bracket is connected with a lifter 1 through a traction rope 2, the intermediate bracket is placed into an installation hole 71 formed in the uppermost floor plate 7 of the second stage of the building in the height direction, the lifter 1 works, the prefabricated exhaust pipe 4 of the second stage moves from top to bottom along with the traction rope 2 through the intermediate bracket by lowering the traction rope 2, and when the bottom of the intermediate bracket is in contact with the top of the flue positioned at the uppermost prefabricated exhaust pipe 4 of the first stage, the lifter 1 stops working;
when the flue comprises two or more than two sections of prefabricated exhaust pipes 4 in the second stage, the middle bracket is connected with the bottom of the prefabricated exhaust pipe 4 positioned at the lowest part of the second stage of the flue into a whole, the middle bracket is connected with the lifter 1 through the traction rope 2, the middle bracket is placed into a mounting hole 71 formed in the height direction of the uppermost floor plate 7 of the second stage of the building, the lifter 1 works, the prefabricated exhaust pipes 4 of the second stage move from top to bottom along with the traction rope 2 through the middle bracket by lowering the traction rope 2, and when the prefabricated exhaust pipes 4 of the adjacent second stage are connected into a whole and the bottom of the middle bracket is in contact with the top of the prefabricated exhaust pipe 4 positioned at the uppermost part of the first stage, the lifter 1 stops working.
The second preparation work before the installation of the second stage flue is to prepare a lifter 1, a traction rope 2 and at least one section of prefabricated exhaust pipe 4 before the installation, and select the uppermost floor 7 of the second stage of the building as the installation floor of the lifter 1;
when the flue comprises a section of prefabricated exhaust pipe 4 in the second stage, the prefabricated exhaust pipe 4 in the second stage of the flue is connected with the elevator 1 through the traction rope 2, the prefabricated exhaust pipe 4 in the second stage of the flue is placed into the mounting hole 71 formed in the uppermost floor 7 of the second stage of the building in the height direction, the elevator 1 works, the prefabricated exhaust pipe 4 in the second stage moves up and down along with the traction rope 2 by lowering the traction rope 2, and when the bottom of the prefabricated exhaust pipe 4 in the second stage contacts the top of the prefabricated exhaust pipe 4 in the first stage, the elevator 1 stops working;
when the flue comprises two or more than two prefabricated exhaust pipes 4 in the second stage, the prefabricated exhaust pipe 4 positioned at the lowest part of the second stage of the flue is connected with the lifter 1 through the traction rope 2, the prefabricated exhaust pipe 4 positioned at the lowest part of the second stage of the flue is placed into the mounting hole 71 formed in the uppermost floor 7 of the second stage of the building in the height direction, the lifter 1 works, the prefabricated exhaust pipes 4 in the second stage move from top to bottom along with the traction rope 2 by lowering the traction rope 2, and when the adjacent prefabricated exhaust pipes 4 in the second stage of the flue are connected into a whole and the prefabricated exhaust pipe 4 positioned at the lowest part of the second stage of the flue is in contact with the top of the prefabricated exhaust pipe 4 positioned at the highest part of the first stage, the lifter 1 stops working.
In the embodiment, when the flue comprises two or more stages and the flue in the current stage needs to be subjected to the next stage, the top of the prefabricated exhaust pipe 4, which is positioned at the top in the current stage, of the flue is higher than the uppermost floor 7 of the building in the current stage when the elevator 1 stops working; when the flue includes two or more stages and the flue of the current stage does not need to be subjected to the next stage, the top of the prefabricated exhaust duct 4 of the flue located uppermost in the current stage is lower than the uppermost floor 7 of the building in the current stage when the elevator 1 stops operating.
In this embodiment, when the flue includes two or more stages, and the flue in the current stage needs to be subjected to the next stage, it is determined whether the top of the prefabricated exhaust pipe 4 located at the top of the flue in the current stage corresponds to the bearing wall, if the top of the prefabricated exhaust pipe 4 located at the top of the flue in the current stage corresponds to the bearing wall, at least one welding plate is arranged on the inner side of the top of the prefabricated exhaust pipe 4 located at the top of the flue in the current stage, at this time, at least one welding plate is arranged on the inner side of the bottom of the prefabricated exhaust pipe 4 located at the bottom of the next stage, and the welding plates arranged on the inner side of the bottom of the prefabricated exhaust pipe 4 located at the bottom of the next stage correspond to the positions and the numbers of the welding plates arranged on the inner side of the top of the prefabricated exhaust pipe 4 located at the top. In addition, need set up the welding mouth (not marked in the figure) on the lateral wall that prefabricated blast pipe 4 that the flue next stage is located the below, the effect of welding mouth is conveniently stretches into prefabricated blast pipe 4 with the constructor in to realize that the welding plate that the flue next stage is located the bottom inboard setting of prefabricated blast pipe 4 of below and the flue is located the welding plate that the top inboard setting of prefabricated blast pipe 4 of the top is located as an organic whole through the welding at the current stage.
If the flue is located the top of the prefabricated blast pipe 4 of the top and the bearing wall is not corresponding at the present stage, then the flue sets up annular welded plate in the top outside that the prefabricated blast pipe 4 that the present stage is located the top, and during this time, offer with the flue and set up on the wall that the welded plate corresponds in the top outside that the flue is located the prefabricated blast pipe 4 of the top at the present stage, the effect of dodging the groove is that convenient with constructor with welding tool stretch into the wall and the flue in the clearance between the welded plate that the top outside that the prefabricated blast pipe 4 that the present stage is located the top set up.
In the invention, the pulley assembly can be optionally prepared for the preparation work before the first stage flue is installed and the preparation work before the second stage flue is installed, and at least part of the traction rope 2 is tightly attached to the pulley assembly and is provided with the tension force by the pulley assembly. By the design, the working stability of the traction ropes 2 is improved, and the abrasion of the traction ropes 2 at the corners of the installation holes 71 of the floor slab 7 is reduced.
As can be seen from fig. 1, the pulley assembly of the present embodiment includes a pulley 5 and a tension pulley 6, wherein the pulley 5 is located above the tension pulley 6. After lift 1 is connected to 2 one ends of haulage rope, earlier the wire winding to the below of take-up pulley 6, then, extend the wire winding to the top of pulley 5 from the below of take-up pulley 6, finally, from the top downwardly extending of pulley 5 so that 2 other ends of haulage rope and end bracket 3 (in first stage flue installation, 2 other ends of haulage rope fixed connection be end bracket 3, in second stage flue installation, 2 other ends of haulage rope can fixed connection middle bracket or the prefabricated blast pipe 4 of second stage below) fixed connection. In other embodiments of the invention, the pulley assembly may also include two or more pulleys.
In this embodiment, the tension wheel 6 is used for tensioning the traction rope 2, so that the traction rope 2 always provides an upward tension for the bottom bracket 3 in the working process (when the traction rope 2 provides an upward tension for the bottom bracket 3, the traction rope 2 is in the working state), which will keep the bottom bracket 3 and the prefabricated exhaust pipe 4 in a stable motion state all the time in the top-down motion process. The pulley 5 serves to change the extension direction of the traction rope 2 and to reduce wear of the traction rope 2 during operation.
Preferably, at least part of the pulley 5 is located inside the mounting hole 71, i.e. the projection of at least part of the pulley 5 on the horizontal plane is located inside said mounting hole 71. By adopting the design, the traction ropes 2 are prevented from contacting the side wall or the top wall of the floor slab 7 at the mounting hole 71.
It should be noted that: the building obstacle contacted by the bottom of the bottom bracket 3 is usually the ground of the first floor of the building, but the building obstacle is not limited to the ground of the first floor of the building, and may be the ground of the second floor of the building, the ground of the fourth floor of the building, the ground of the next floor of the building, the ground of the second floor of the building, a mounting table on the ground of the first floor of the building, a mounting frame on the ground of the fourth floor of the building, and the like.
In this embodiment, adjacent prefabricated blast pipe 4 is in welding process, and adjacent prefabricated blast pipe 4's welding department all is located the top of the bottom of the top floor 7. By the design, the working environment of the constructors is optimized, and unnecessary welding difficulty of the constructors is avoided increasing.
When the elevator 1 stops working, all the adjacent prefabricated exhaust pipes 4 are connected into a whole by welding. By the design, the positions of the adjacent prefabricated exhaust pipes 4 in the welding process are changed, so that the difficulty of connecting the adjacent prefabricated exhaust pipes 4 into a whole through welding is reduced, and in addition, the contact area between the adjacent prefabricated exhaust pipes 4 is increased through welding flux, so that the deformation resistance of the prefabricated exhaust pipes 4 is further improved.
The present embodiment does not limit the installation sequence among the three of the traction ropes 2, the bottom bracket 3 and the prefabricated exhaust pipe 4 in the first stage flue, for example, the installation sequence among the three of the traction ropes 2, the bottom bracket 3 and the prefabricated exhaust pipe 4 may be: firstly, a bottom bracket 3 is connected with the bottom of one section of the prefabricated exhaust pipe 4 into a whole, then the bottom bracket 3 is connected with a lifter 1 through a traction rope 2, and finally, the bottom bracket 3 is placed in a mounting hole 71 of a building floor 7; alternatively, the sequence of installation among the traction rope 2, the bottom bracket 3 and the prefabricated exhaust pipe 4 may be: firstly, a bottom bracket 3 is connected with a lifter 1 through a traction rope 2, then the bottom bracket 3 is connected with the bottom of one section of prefabricated exhaust pipe 4 into a whole, and finally, the bottom bracket 3 is placed in an installation hole 71 of a building floor 7; alternatively, the sequence of installation among the traction rope 2, the bottom bracket 3 and the prefabricated exhaust pipe 4 may be: firstly, placing a bottom bracket 3 into a mounting hole 71 of a building floor 7, then connecting the bottom bracket 3 with a lifter 1 through a traction rope 2, and finally connecting the bottom bracket 3 with the bottom of one section of prefabricated exhaust pipe 4 into a whole; alternatively, the sequence of installation among the traction rope 2, the bracket 3 and the prefabricated exhaust pipe 4 may be: firstly, the bracket 3 is put into the mounting hole 71 of the building floor 7, then the bracket 3 is connected with the bottom of one section of the prefabricated exhaust pipe 4 into a whole, and finally, the bracket 3 is connected with the lifter 1 through the traction rope 2.
Similarly, the installation sequence among the hauling rope 2, the middle bracket and the prefabricated exhaust pipe 4 in the second stage flue is not limited in this embodiment, and the installation sequence among the hauling rope 2 and the two sections of the prefabricated exhaust pipe 4 at the bottom adjacent to the middle bracket in the second stage flue is not limited in this embodiment. The mounting sequence among the hauling rope 2, the middle bracket and the prefabricated exhaust pipe 4 in the second stage flue can refer to the mounting sequence among the hauling rope 2, the bottom bracket 3 and the prefabricated exhaust pipe 4 in the first stage flue, and the mounting sequence among the hauling rope 2 and the two sections of adjacent prefabricated exhaust pipes 4 at the bottom in the second stage flue can also refer to the mounting sequence among the hauling rope 2, the bottom bracket 3 and the prefabricated exhaust pipe 4 in the first stage flue.
First stage flue since prefabricated exhaust pipe 4 contacts the obstacle of the building through bottom bracket 3, bottom bracket 3 needs to bear the weight of prefabricated exhaust pipe 4, which makes it difficult for bottom bracket 3 to be removed from the bottom of prefabricated exhaust pipe 4, and therefore, in this embodiment, bottom bracket 3 is integrated with the bottom of prefabricated exhaust pipe 4 by welding. By such design, the prefabricated exhaust pipe 4 increases the contact area between itself and the bottom bracket 3 through the solder to further improve the deformation resistance of the prefabricated exhaust pipe 4.
In the second stage flue, because the prefabricated exhaust pipe 4 contacts an obstacle of a building through an intermediate bracket (preparation before installation of the second stage flue, preparation before installation of the intermediate bracket), the intermediate bracket needs to bear the weight of the prefabricated exhaust pipe 4, which makes it difficult to remove the intermediate bracket from the bottom of the prefabricated exhaust pipe 4, and therefore, in the embodiment, the intermediate bracket is connected with the bottom of the prefabricated exhaust pipe 4 into a whole through welding. By such design, the prefabricated exhaust pipe 4 increases the contact area between itself and the intermediate bracket by the solder to further improve the deformation resistance of the prefabricated exhaust pipe 4.
When two or more sections of prefabricated exhaust pipes 4 are prepared in the preparation work before the first-stage flue is installed, and the two or more sections of prefabricated exhaust pipes 4 are metal pipes, the bottom of the metal pipe above the adjacent prefabricated exhaust pipe 4 and the top of the metal pipe below the adjacent prefabricated exhaust pipe 4 are connected into a whole through welding. In other embodiments of the present invention, adjacent prefabricated exhaust pipes may be connected together by fasteners, rivets, plugs, etc.
Referring to fig. 1, in the first-stage flue and the second-stage flue of this embodiment, the top and the bottom of each of the prefabricated exhaust pipes 4 except for the lowermost prefabricated exhaust pipe 4 are provided with a welded plate forming a certain angle with the height direction of the prefabricated exhaust pipe 4, the welded plate at the top of the prefabricated exhaust pipe 4 is referred to as an upper welded plate 42, the welded plate at the bottom of the prefabricated exhaust pipe 4 is referred to as a lower welded plate 43, the upper welded plate 42 and the lower welded plate 43 are used for increasing the contact area of the adjacent prefabricated exhaust pipes 4 to improve the deformation resistance of the prefabricated exhaust pipe 4, and the lower welded plate 43 of the upper prefabricated exhaust pipe 4 in the adjacent prefabricated exhaust pipe 4 and the upper welded plate 42 of the lower prefabricated exhaust pipe 4 in the adjacent prefabricated exhaust pipe 4 are connected into a whole by welding. Of course, in other embodiments of the present invention, all of the prefabricated exhaust pipes may be provided with an upper welding plate at the top thereof, and all of the prefabricated exhaust pipes may be provided with a lower welding plate at the bottom thereof, wherein the lower welding plate on the lowermost prefabricated exhaust pipe section may be connected with the bottom bracket or the middle bracket by welding.
In the first stage flue and the second stage flue of this embodiment, the welded plates on the prefabricated exhaust pipe 4 except the lowermost section are preferably formed by flanging the prefabricated exhaust pipe 4, and the welded plates on the prefabricated exhaust pipe 4 except the lowermost section are preferably perpendicular to the outer side wall of the prefabricated exhaust pipe 4. Of course, in other embodiments of the present invention, except that the welded plate on the lowest prefabricated exhaust pipe section may be fixedly connected to the prefabricated exhaust pipe by a fastening member, welding, riveting, or the like, an included angle between the welded plate on the lowest prefabricated exhaust pipe section and the outer sidewall of the prefabricated exhaust pipe may be any angle other than 0 degree and 360 degrees.
Referring to fig. 1, when the bottom of the bottom bracket 3 contacts a building obstacle, a welded part where the bottom of the prefabricated exhaust pipe 4 located above in the adjacent prefabricated exhaust pipes 4 and the top of the prefabricated exhaust pipe 4 located below in the adjacent prefabricated exhaust pipes 4 are connected into a whole by welding is located in a floor slab 7, and fillers with at least two different connection strengths are filled between the welded part where the bottom of the prefabricated exhaust pipe 4 located above in the adjacent prefabricated exhaust pipes 4 and the top of the prefabricated exhaust pipe 4 located below in the adjacent prefabricated exhaust pipes 4 are connected into a whole by welding and the floor slab, so that not only can the connection strength between the prefabricated exhaust pipe 4 and the floor slab 7 be increased by the fillers with at least two different connection strengths, but also the bottom of the prefabricated exhaust pipe 4 located above in the adjacent prefabricated exhaust pipes 4 and the top of the prefabricated exhaust pipe 4 located below in the adjacent prefabricated exhaust pipes 4 can be increased by welding The smoke insulation performance of the welding position which is connected into a whole.
Referring to fig. 1, the bottom of the prefabricated exhaust pipe 4 at the lowest part of the flue in the first stage is provided with a welded plate which forms a certain angle with the height direction of the prefabricated exhaust pipe 4, the welded plate in this embodiment is a bottom welded plate 44, and since the prefabricated exhaust pipe 4 and the bottom bracket 3 are made of metal, the prefabricated exhaust pipe 4 and the bottom bracket 3 are connected into a whole through the bottom welded plate 44. In other embodiments of the present invention, the preformed exhaust pipe and the bottom bracket may be integrally connected by fasteners, rivets, snap-fit connections, or the like.
As can be seen from fig. 1, the prefabricated exhaust pipe 4 has a smoke exhaust channel 41, a bottom welded plate 44 is located in the smoke exhaust channel 41 of the lowermost prefabricated exhaust pipe 4, and a side wall of the bottom welded plate 44 is integrally welded with a side wall of the smoke exhaust channel 41, so that the bottom welded plate 44 is arranged on the lowermost prefabricated exhaust pipe 4; the top end face of the bottom bracket 3 and the bottom end face of the bottom welding plate 44 are connected into a whole by welding, so that the bottom welding plate 44 is arranged on the bottom bracket 3. In other embodiments of the present invention, the bottom weld plate may be integrally formed with one of the prefabricated exhaust pipe and the bracket, and the bottom weld plate may be integrally joined to the other of the prefabricated exhaust pipe and the bracket by welding.
Referring to fig. 1, the top end of the bottom welding plate 44 is disposed obliquely, that is, the top end of the bottom welding plate 44 is provided with an inclined surface 442, the inclined surface 442 gradually inclines downward from the edge of the bottom welding plate 44 to the center thereof, and the center of the bottom welding plate 44 is provided with a mounting hole 441. With such a design, the liquid foreign matter or the solid foreign matter in the prefabricated exhaust pipe 4 can slide toward the mounting hole 441 through the inclined surface 442, so that the prefabricated exhaust pipe 4 has a function of automatically removing the liquid foreign matter or the solid foreign matter in the smoke evacuation channel 41 to a certain extent.
In this embodiment, the corner brace is in an "L" shape, and the outer side wall of at least one segment of the prefabricated exhaust pipe 4 is fixedly connected with the top of the corresponding floor slab 7 (the floor slab 7 separates the building into two upper and lower floors in the height direction, in this embodiment, the floor slab 7 has a top and a bottom, the top is defined as the bottom of the upper building, and the bottom is defined as the top of the lower building) through the corner brace, preferably: the angle sign indicating number bearing is even as an organic whole through the welding with the lateral wall of prefabricated blast pipe 4, and the angle sign indicating number bearing is even as an organic whole through the fastener with the top of floor 7, the fastener can be in screw, bolt, nut, the screw rod one or more. By such design, at least one segment of prefabricated exhaust pipe 4 abuts against the top of the corresponding floor slab 7 through the corner brace, so that the corner brace can partially support the prefabricated exhaust pipe 4, and the weight of the prefabricated exhaust pipe 4 required to be borne by the bracket 3 is reduced.
In other embodiments of the invention, the corner brace may be other than "L" shaped, such as: a straight line shape, a T shape, a U shape, a V shape, etc.
In this embodiment, the sidewall of the prefabricated exhaust pipe 41 is provided with a cleaning opening 411 communicated with the exhaust smoke channel 41, preferably, the sidewall of the lowermost prefabricated exhaust pipe 41 is provided with a cleaning opening 411 communicated with the exhaust smoke channel 41, because the top end surface of the bottom bracket 3 and the bottom end surface of the bottom welded plate 44 are connected into a whole by welding, the bottom bracket 3 needs to be provided with a drain opening 31, when the top end surface of the bottom bracket 3 and the bottom end surface of the bottom welded plate 44 are connected into a whole by welding, the drain opening 31 corresponds to the mounting hole 441, and the drain opening 31 and the cleaning opening 411 are communicated through the prefabricated exhaust pipe 4.
Preferably, the distance between any two points on the wall of the cleaning opening 411 is more than or equal to 8cm, which is convenient for an operator to put hands and a welding tool into the cleaning opening 411 and weld a drain pipe (not shown) on the installation hole 441 and/or the drain opening 31. The minimum spacing distance between the drain outlet 31 and the cleaning opening 411 is less than or equal to 50cm, and the structure enables constructors to complete the welding process between the drain pipe and the mounting hole 441 and/or the drain outlet 31 without extending upper arms into the cleaning opening 411. By the design, the welding difficulty of the sewage draining pipe is reduced.
Referring to fig. 1, a smoke inlet 412 communicated with the smoke exhaust channel 41 of the prefabricated exhaust pipe 4 is arranged on the outer side wall of at least one section of the prefabricated exhaust pipe 4, and a flange for connecting an exhaust valve is arranged on the outer side wall of the prefabricated exhaust pipe 4 surrounding the smoke inlet 412. So designed, provide the mounted position for discharge valve.
Preferably, the exhaust valve is clamped to the flange to enable quick installation or quick removal of the quick exhaust valve.
As can be seen from fig. 1, the present embodiment has two sets of elevators 1, two sets of traction ropes 2 and two sets of pulley assemblies, however, in other embodiments of the invention, the "number of sets" of elevators, traction ropes, pulley assemblies may be increased or decreased according to the actual requirements.
In the present invention, the elevator 1 may be fixedly connected to the uppermost floor 7, and the elevator 1 may be placed on the uppermost floor 7.
In this embodiment, the bottom bracket 3 is provided with a hanging ring 33, and the other end of the hauling rope 2 is wound on the hanging ring 33.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that the present invention includes, but is not limited to, the contents described in the accompanying drawings and the above specific embodiments. Any modification which does not depart from the functional and structural principles of the present invention is intended to be included within the scope of the claims.

Claims (10)

1. The method for installing the flue in stages in the building is characterized by comprising the following steps:
preparing a lift, a traction rope, a bottom bracket and at least two sections of prefabricated exhaust pipes before installation, and selecting the uppermost floor of the building in the first stage as the installation floor of the lift;
the first stage flue installation method comprises the steps that a bottom bracket and the bottom of a prefabricated exhaust pipe located at the lowest part of a flue are connected into a whole, the bottom bracket is connected with a lifter through a traction rope, the bottom bracket is placed into an installation hole formed in the height direction of a building floor slab, the lifter works, the traction rope is lowered, so that the prefabricated exhaust pipe in the first stage moves from top to bottom along with the traction rope through the bottom bracket, when adjacent prefabricated exhaust pipes in the first stage are connected into a whole and the bottom of the bottom bracket contacts with a barrier of the building, the lifter stops working, wherein the top of the prefabricated exhaust pipe located at the top in the first stage of the flue is higher than the uppermost floor slab of the building in the first stage when the lifter stops working;
judging whether the second stage flue needs to prepare an intermediate bracket before installation, if so, entering first preparation work before the second stage installation, and if not, entering second preparation work before the second stage installation;
the first preparation work before the installation of the second stage flue is to prepare a lifter, a traction rope, an intermediate bracket and at least one section of prefabricated exhaust pipe before the installation, and select the uppermost floor of the second stage of the building as the installation floor of the lifter;
when the flue comprises a section of prefabricated exhaust pipe in the second stage, connecting an intermediate bracket and the bottom of the prefabricated exhaust pipe positioned at the lowest part of the second stage of the flue into a whole, connecting the intermediate bracket with a lifter through a traction rope, placing the intermediate bracket into a mounting hole formed in the uppermost floor slab of the second stage of the building in the height direction, enabling the prefabricated exhaust pipe in the second stage to move from top to bottom along with the traction rope through the intermediate bracket by lowering the traction rope, and stopping the lifter when the bottom of the intermediate bracket is in contact with the top of the prefabricated exhaust pipe positioned at the uppermost part of the flue in the first stage;
when the flue comprises two or more than two sections of prefabricated exhaust pipes in the second stage, the middle bracket and the bottom of the prefabricated exhaust pipe positioned at the lowest part of the second stage of the flue are connected into a whole, the middle bracket is connected with the elevator through the traction rope, the middle bracket is placed into a mounting hole formed in the height direction of the uppermost floor slab of the second stage of the building, the elevator works, the prefabricated exhaust pipes in the second stage move from top to bottom along with the traction rope through the middle bracket by lowering the traction rope, and when the adjacent prefabricated exhaust pipes in the second stage are connected into a whole and the bottom of the middle bracket is in contact with the top of the prefabricated exhaust pipe positioned at the highest part of the flue in the first stage, the elevator stops working.
The second preparation work before the installation of the second stage flue is to prepare a lifter, a traction rope and at least one section of prefabricated exhaust pipe before the installation, and select the uppermost floor of the building in the second stage as the installation floor of the lifter;
when the flue comprises a section of prefabricated exhaust pipe in the second stage, the prefabricated exhaust pipe in the second stage of the flue is connected with a lifter through a traction rope, the prefabricated exhaust pipe in the second stage of the flue is placed into a mounting hole formed in the uppermost floor slab of the second stage of the building in the height direction, the lifter works, the prefabricated exhaust pipe in the second stage moves from top to bottom along with the traction rope by placing the traction rope, and when the bottom of the prefabricated exhaust pipe in the second stage contacts the top of the prefabricated exhaust pipe in the first stage, the lifter stops working;
when the flue comprises two or more than two sections of prefabricated exhaust pipes in the second stage, the prefabricated exhaust pipe positioned at the lowest part of the second stage of the flue is connected with the elevator through the traction rope, the prefabricated exhaust pipe positioned at the lowest part of the second stage of the flue is placed into the mounting hole formed in the uppermost floor slab of the second stage of the building in the height direction, the elevator works, the prefabricated exhaust pipes in the second stage move from top to bottom along with the traction rope by lowering the traction rope, and when the prefabricated exhaust pipes in the adjacent second stage on the flue are connected into a whole and the prefabricated exhaust pipe positioned at the lowest part of the second stage of the flue is in contact with the top of the prefabricated exhaust pipe positioned at the uppermost part of the flue in the first stage, the elevator stops working.
2. The method of claim 1 for installing a staged flue in a building, comprising: when the flue comprises two or more stages and the flue in the current stage needs to be subjected to the next stage, the top of the prefabricated exhaust pipe of the flue, which is positioned at the top in the current stage, is higher than the uppermost floor of the building in the current stage when the elevator stops working; when the flue comprises two or more stages and the flue of the current stage does not need to be subjected to the next stage, the top of the prefabricated exhaust pipe of the flue, which is positioned at the top in the current stage, is lower than the uppermost floor of the building in the current stage when the elevator stops working.
3. The method of claim 2 for installing a staged flue in a building, comprising: when the flue includes two and more than two stages, and when the flue of current stage still need carry out next stage, judge whether the flue is located the top of the prefabricated blast pipe of the top at the current stage and correspond with the bearing wall, if the flue is located the top of the prefabricated blast pipe of the top at the current stage and corresponds with the bearing wall, then the flue is located the top inboard of the prefabricated blast pipe of the top at the current stage and sets up at least one welded plate, if the flue is located the top of the prefabricated blast pipe of the top at the current stage and does not correspond with the bearing wall, then the flue is located the top outside of the prefabricated blast pipe of the top at the current stage and sets up annular welded plate.
4. The method of claim 1 for installing a staged flue in a building, comprising: the bracket is connected with the bottom of the prefabricated exhaust pipe into a whole through welding.
5. The method of claim 1 for installing a staged flue in a building, comprising: when two or more sections of prefabricated exhaust pipes are prepared in the preparation work before installation, and the two or more sections of prefabricated exhaust pipes are metal pipes, the bottom of the metal pipe above the adjacent prefabricated exhaust pipe is connected with the top of the metal pipe below the adjacent prefabricated exhaust pipe into a whole through welding.
6. The method of claim 5 for installing a staged flue in a building, comprising: the top of the prefabricated exhaust pipe and the bottom of the prefabricated exhaust pipe are provided with welded plates which form a certain angle with the height direction of the prefabricated pipe exhaust pipe, and the welded plates at the bottom of the prefabricated exhaust pipe above the adjacent prefabricated exhaust pipe are connected with the welded plates at the top of the prefabricated exhaust pipe below the adjacent prefabricated exhaust pipe into a whole through welding.
7. The method of claim 5 for installing a staged flue in a building, comprising: the bottom of the prefabricated exhaust pipe above the adjacent prefabricated exhaust pipes and the top of the prefabricated exhaust pipe below the adjacent prefabricated exhaust pipes are located in the floor slab through welded joints, and at least two fillers with different connection strengths are filled between the welded joints where the bottom of the prefabricated exhaust pipe above the adjacent prefabricated exhaust pipes and the top of the prefabricated exhaust pipe below the adjacent prefabricated exhaust pipes are connected into a whole through welded joints and the floor slab.
8. The method of claim 1 for installing a staged flue in a building, comprising: the outer side wall of at least one section of prefabricated exhaust pipe is fixedly connected with the top of the corresponding floor slab through an angle code support, and the at least one section of prefabricated exhaust pipe is abutted to the top of the corresponding floor slab through the angle code support.
9. The method of claim 1 for installing a staged flue in a building, comprising: the prefabricated exhaust pipe is characterized in that a cleaning opening is formed in the side wall of the prefabricated exhaust pipe, a drain opening is formed in the bracket and communicated with the cleaning opening through the prefabricated exhaust pipe, the spacing distance between any two points on the wall of the cleaning opening is not less than 8cm, and the minimum spacing distance between the drain opening and the cleaning opening is not more than 50 cm.
10. The method of claim 1 for installing a staged flue in a building, comprising: the outer side wall of at least one section of prefabricated exhaust pipe is provided with a smoke inlet hole, and the outer side wall of the prefabricated exhaust pipe surrounding the smoke inlet hole is provided with a flange used for connecting an exhaust valve.
CN202010043916.0A 2020-01-16 2020-01-16 Method for mounting flue in stages for building Pending CN113123604A (en)

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Application Number Priority Date Filing Date Title
CN202010043916.0A CN113123604A (en) 2020-01-16 2020-01-16 Method for mounting flue in stages for building

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010043916.0A CN113123604A (en) 2020-01-16 2020-01-16 Method for mounting flue in stages for building

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Publication Number Publication Date
CN113123604A true CN113123604A (en) 2021-07-16

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Country Link
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