CN111022758A - Air duct installation method - Google Patents
Air duct installation method Download PDFInfo
- Publication number
- CN111022758A CN111022758A CN201911218580.0A CN201911218580A CN111022758A CN 111022758 A CN111022758 A CN 111022758A CN 201911218580 A CN201911218580 A CN 201911218580A CN 111022758 A CN111022758 A CN 111022758A
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- Prior art keywords
- air duct
- mould
- air
- installing
- air pipe
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L1/00—Laying or reclaiming pipes; Repairing or joining pipes on or under water
- F16L1/024—Laying or reclaiming pipes on land, e.g. above the ground
- F16L1/0243—Laying or reclaiming pipes on land, e.g. above the ground above ground
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/12—Chain or like hand-operated tackles with or without power transmission gearing between operating member and lifting rope, chain or cable
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Duct Arrangements (AREA)
Abstract
The invention discloses an air duct installation method, which belongs to the technical field of electromechanical installation, and mainly comprises the steps of connecting a lifting claw and a lifting ring at the bottom of a floor slab to drive a mould supporting an air duct joint to rise to a set position, and then enabling a prefabricated cross arm to support the air duct.
Description
Technical Field
The invention relates to the technical field of electromechanical installation, in particular to an air pipe installation method.
Background
The air duct is a common electromechanical assembly object in the electromechanical technical field of building components and mainly comprises a plurality of air duct joints which are connected end to end. For department stores/cinemas of department stores, due to the fact that the ventilation system is large in air duct amount, large in air duct amount and short in construction period, installation of the air duct is always a difficult point, the electromechanical installation period is prolonged seriously, and normal operation of construction projects is affected. How to stably and quickly carry out the air duct installation process becomes a technical problem to be solved urgently.
Disclosure of Invention
In summary, the technical problems solved by the present invention are: the air pipe installation method is high in reliability and installation efficiency.
The scheme adopted by the invention for solving the technical problems is as follows:
an air duct installation method comprises the following steps:
s1, arranging a plurality of groups of connecting structures and a plurality of groups of hanging rings at intervals at the bottom of the floor along the direction of the air pipe, wherein each group of connecting structures comprises a pair of parallel hanging claws which are respectively arranged at the left side and the right side and are connected with the floor;
s2, vertically connecting the two suspension rods to the left suspension claw and the right suspension claw respectively, and connecting one end of the left end and the right end of the prefabricated cross arm to the bottom end of the suspension rod on the corresponding side, while the other end is not installed temporarily;
s3, placing the air pipe on the mould, and fastening the mould and the air pipe by using the canvas belt;
s4, hanging an electric hoist on the hanging ring, and enabling lifting lugs at four corners of the mould to be connected with the lifting end of the chain block respectively;
s5, pulling the hand-pulling end of the chain block to enable the clamping fixture and the air pipe to move upwards to the inner sides of the two hanging rods;
s6, installing the non-installed end of the prefabricated cross arm on the bottom end of the corresponding side suspender, enabling the prefabricated cross arm to support the air duct, adjusting the height of the prefabricated cross arm to enable the air duct to reach the designed elevation, and then detaching the clamping fixture and the chain block.
And S7, repeating the steps S2 to S6, and connecting the air pipes in the front and back hoisting processes end to end until the whole air pipe is installed.
Furthermore, the lifting claws are C-shaped channel steels, and in each group of connecting structures, the openings of the C-shaped channel steels are oppositely arranged;
meanwhile, the step S1 is mainly composed of the following steps:
a1, drilling a borehole at the bottom of a floor slab;
and A2, enabling the expansion end of the expansion bolt to penetrate through the top of the C-shaped channel steel and be inserted into the bottom of the floor slab, so that the head of the expansion bolt and the bottom of the floor slab fix the C-shaped channel steel together.
Further, in the above-mentioned case,
the mould is in the shape of a rectangular frame with the length direction consistent with the trend of the air pipe, and further comprises three cross beams extending along the length direction of the mould and one longitudinal beam extending along the width direction of the mould.
Further, the step S3 mainly comprises the following steps:
a1, placing a plurality of air duct joints on a mould in an end-to-end mode, and aligning flanges of two adjacent air duct joints;
a2, connecting flanges of two adjacent sections of air pipe joints by fastening bolts to form an air pipe;
a3, fastening the mould and the air duct by using a canvas belt, and wrapping a soft material around the air duct;
further, in step S3, four air duct segments constitute the air duct.
Furthermore, the top of jib is inserted in the opening of C style of calligraphy channel-section steel by the bottom of C style of calligraphy channel-section steel, the jib stretches into the position threaded connection in the opening of C style of calligraphy channel-section steel has the end nut that a plurality of arranged in proper order along the jib axial.
Further, the prefabricated cross arm is connected with the bottom end of the hanging rod through a bolt.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
(1) according to the invention, the lifting claw and the lifting ring are connected to the bottom of the floor slab to drive the mould supporting the air duct joint to rise to the set position, and then the prefabricated cross arm supports the air duct, so that the requirements on conveying and transferring in the whole process are lower, the construction speed is higher, the installation speed of the air duct is effectively accelerated, and the method is particularly suitable for application environments of department stores, shopping malls, movie courtyards and the like.
(2) The special clamping fixture is used for hoisting the air duct joint, so that the stability of the air duct joint in the installation process can be effectively guaranteed, and the normal construction is further guaranteed.
Drawings
FIG. 1 is a schematic view of the case where step S1 is performed in example 1 of the present invention;
FIG. 2 is a schematic side view of the process of example 1 of the present invention;
FIG. 3 is a schematic front view of the process of example 1 of the present invention;
fig. 4 is a schematic structural view of a suspension claw in embodiment 1 of the present invention.
[ Specification of symbols ]
1-floor, 2-C-shaped channel steel, 3-hoisting rings, 4-hoisting rods, 5-prefabricated cross arms, 6-clamping fixture, 7-chain block, 8-expansion bolt, 9-stop nut, 10-moving platform, 11-canvas belt and 12-air duct joint.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the terms are only used for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements indicated must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," and the like in the description of the present invention are only used for distinguishing between the descriptions and are not intended to indicate or imply relative importance.
Furthermore, the terms "horizontal", "vertical" and the like when used in the description of the present invention do not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
As shown in fig. 1 to 4, before the installation step of the duct, a building process of the movable platform 10 should be performed. In this embodiment 1, the layer of the engineering object is as high as 8.5m, so two independent platforms should be assembled to form an integral platform, so as to avoid the platform from overturning.
Meanwhile, a paying-off positioning procedure is required to be carried out, and a lifting point is drawn. And drilling a drilling hole at the elastic hoisting point by using an electric hammer drill for an embedding process of the end part of the bolt for connecting the floor slab 1 and the hoisting claw and/or the hoisting ring 3.
Then the following steps are carried out:
s1, arranging a plurality of groups of connecting structures and a plurality of groups of lifting rings 3 at the bottom of the floor slab 1 along the direction of the air pipe at intervals, wherein each group of connecting structures comprises a pair of parallel lifting claws which are respectively arranged at the left side and the right side and are connected with the floor slab 1;
s2, vertically connecting the two suspension rods 4 to the left suspension claw and the right suspension claw respectively, and connecting one end of the left end and the right end of the prefabricated cross arm 5 to the bottom end of the suspension rod 4 on the corresponding side, while the other end is not installed temporarily;
s3, placing the air pipe on the clamping fixture 6, and fastening the clamping fixture 6 and the air pipe by using the canvas belt 11;
s4, hanging an electric hoist on the lifting ring 3, and respectively connecting lifting lugs at four corners of the mould 6 with the lifting end of a chain block 7;
s5, pulling the hand-pulling end of the chain block 7 to enable the clamping fixture 6 and the air pipe to move upwards to the inner sides of the two hanging rods 4;
s6, mounting the non-mounted end of the prefabricated cross arm 5 on the bottom end of the corresponding side suspender 4, enabling the prefabricated cross arm 5 to support the air duct, adjusting the height of the prefabricated cross arm 5 to enable the air duct to reach the designed elevation, and then dismounting the clamping fixture 6 and the chain block 7.
And S7, repeating the steps S2 to S6, and connecting the air pipes in the front and back hoisting processes end to end until the whole air pipe is installed.
It will be appreciated that steps S2 to S6 are mainly applicable to the installation of the air duct with a preset length, and the whole air duct system is assembled by one or more air ducts, and in this embodiment 1, each air duct is flanged by 4 air ducts 12 in an end-to-end manner. It will also be appreciated that in this embodiment 1 the wind pipe runs in the fore and aft direction.
This embodiment 1 connects lifting claw and rings 3 in floor 1's bottom to the mould 6 that supports tuber pipe section 12 in the drive rises to the settlement position, then makes prefabricated cross arm 5 support the tuber pipe again, and whole process is lower to the requirement of carrying, transporting, and construction speed is very fast, the effectual speed of accelerating the tuber pipe installation, application environments such as department of department store's market/shadow courtyard that are particularly useful for.
The lifting claw can adopt a traditional lifting claw structure, and as a preferred embodiment, in this embodiment 1, the lifting claw is a C-shaped channel steel 2, and in each group of connection structures, openings of the C-shaped channel steel 2 are oppositely arranged;
wherein the step S1 mainly comprises the following steps:
a1, drilling a borehole at the bottom of the floor slab 1;
and A2, inserting the expansion end of the expansion bolt 8 into the bottom of the floor slab 1 through the top of the C-shaped channel steel 2, so that the head of the expansion bolt 8 and the bottom of the floor slab 1 fix the C-shaped channel steel 2 together.
Wherein, the main aim at that the opening of C style of calligraphy channel-section steel 2 is relative sets up guarantees the stability when the tuber pipe is taken over. Meanwhile, the C-shaped channel steel 2 is adopted as the lifting claw, so that the implementation cost of the project is saved. It should be noted that in the embodiment 1, the bottom end and the top end of the suspension rods 4 on both sides are provided with external threads to match with nuts to connect with the suspension claws and the prefabricated cross arm 5 respectively.
In addition, in order to ensure the stability of the connection, in the present embodiment 1, the expansion bolt 8 is uniformly selected as an expansion pipe type expansion bolt 8 of M12.
In this embodiment 1, the fixture 6 is mainly used to hold the wind pipe sections 12 and provide the practitioner with a place to flange each wind pipe section 12. The condition that the air duct joint 12 needs to be connected outside a construction site is avoided, and therefore the construction and transportation requirements of the air duct joint 12 are reduced. Specifically, in this embodiment 1, the mold 6 is in a rectangular frame shape whose length direction is consistent with the trend of the air duct, and the mold 6 further includes three cross beams extending along the length direction and one longitudinal beam extending along the width direction. The arrangement of the cross beams and the longitudinal beams can effectively guarantee the stability of the air duct joint 12 in the hoisting and lifting process.
Specifically, the segment of the air duct joint 12 that is received by the tire 6. In this embodiment 1, the step S3 mainly includes the following steps:
a1, placing a plurality of air duct joints 12 on the mould 6 in an end-to-end mode, and aligning the flanges of two adjacent air duct joints 12;
a2, connecting flanges of two adjacent sections of air pipe joints 12 by fastening bolts to form an air pipe;
a3, fastening the mould 6 and the air duct by using the canvas belt 11, and wrapping a soft material around the air duct;
when the wind pipe joint 12 is in flange connection, the fastening screws on the two transverse sides of one end of the wind pipe joint 12 are preferably connected at the same time, so that the situation that the fastening screw on one side is connected and then the fastening screw on the other side is connected is avoided, and the connection tightness is guaranteed. Before the actual hoisting, a hoisting test should be performed, specifically, in example 1, before the hoisting, the entire jig 6 is first hoisted together with the air duct by 200 to 300mm and suspended, and then the stability of the jig 6, the chain block 7, and the air duct is checked. And after the installation is confirmed, the hoisting is continued.
It is noted that in the conventional manner, the prefabricated cross arm 5 is adjusted to a preset elevation mainly by replacing the hanger bar 4 with a different length. In step S6 of the above method of embodiment 1, the following structure is adopted to implement: the top of jib 4 is inserted in C style of calligraphy channel-section steel 2's opening by C style of calligraphy channel-section steel 2's bottom, jib 4 stretches into the position threaded connection in C style of calligraphy channel-section steel 2's opening has the end nut 9 that butts that a plurality of arranged in proper order along 4 axial of jib. The implementer can adjust the length that jib 4 stretches out in 2 bottoms of C style of calligraphy channel-section steel through the quantity that the nut 9 was stopped in the adjustment to comparatively convenient and fast's realization is to the adjustment of prefabricated cross arm 5 height.
Claims (7)
1. An air duct installation method is characterized by comprising the following steps:
s1, arranging a plurality of groups of connecting structures and a plurality of groups of hanging rings at intervals at the bottom of the floor along the direction of the air pipe, wherein each group of connecting structures comprises a pair of parallel hanging claws which are respectively arranged at the left side and the right side and are connected with the floor;
s2, vertically connecting the two suspension rods to the left suspension claw and the right suspension claw respectively, and connecting one end of the left end and the right end of the prefabricated cross arm to the bottom end of the suspension rod on the corresponding side, while the other end is not installed temporarily;
s3, placing the air pipe on the mould, and fastening the mould and the air pipe by using the canvas belt;
s4, hanging an electric hoist on the hanging ring, and enabling lifting lugs at four corners of the mould to be connected with the lifting end of the chain block respectively;
s5, pulling the hand-pulling end of the chain block to enable the clamping fixture and the air pipe to move upwards to the inner sides of the two hanging rods;
s6, installing the non-installed end of the prefabricated cross arm on the bottom end of the corresponding side suspender, enabling the prefabricated cross arm to support the air duct, adjusting the height of the prefabricated cross arm to enable the air duct to reach the designed elevation, and then detaching the clamping fixture and the chain block.
And S7, repeating the steps S2 to S6, and connecting the air pipes in the front and back hoisting processes end to end until the whole air pipe is installed.
2. A method of installing an air duct according to claim 1, wherein: the lifting claws are C-shaped channel steels, and in each group of connecting structures, the openings of the C-shaped channel steels are oppositely arranged;
the step S1 is mainly composed of the following steps:
a1, drilling a borehole at the bottom of a floor slab;
and A2, enabling the expansion end of the expansion bolt to penetrate through the top of the C-shaped channel steel and be inserted into the bottom of the floor slab, so that the head of the expansion bolt and the bottom of the floor slab fix the C-shaped channel steel together.
3. A method of installing an air duct according to claim 1, wherein:
the mould is in the shape of a rectangular frame with the length direction consistent with the trend of the air pipe, and further comprises three cross beams extending along the length direction of the mould and one longitudinal beam extending along the width direction of the mould.
4. A method of installing an air duct according to claim 3, wherein:
the step S3 is mainly composed of the following steps:
a1, placing a plurality of air duct joints on a mould in an end-to-end mode, and aligning flanges of two adjacent air duct joints;
a2, connecting flanges of two adjacent sections of air pipe joints by fastening bolts to form an air pipe;
a3, fastening the mould and the air duct by using a canvas belt, and wrapping a soft material around the air duct.
5. A method of installing an air duct according to claim 4, wherein: in step S3, four air duct segments constitute the air duct.
6. A method of installing an air duct according to claim 1, wherein: the top of jib is inserted in the opening of C style of calligraphy channel-section steel by the bottom of C style of calligraphy channel-section steel, the jib stretches into the position threaded connection in the opening of C style of calligraphy channel-section steel has a plurality of to follow the end nut that the jib axial was arranged in proper order.
7. A method of installing an air duct according to claim 1, wherein: and the prefabricated cross arm is connected with the bottom end of the suspender through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218580.0A CN111022758A (en) | 2019-12-03 | 2019-12-03 | Air duct installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911218580.0A CN111022758A (en) | 2019-12-03 | 2019-12-03 | Air duct installation method |
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| CN111022758A true CN111022758A (en) | 2020-04-17 |
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| CN201911218580.0A Pending CN111022758A (en) | 2019-12-03 | 2019-12-03 | Air duct installation method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111779229A (en) * | 2020-07-24 | 2020-10-16 | 中电环宇（北京）建设工程有限公司 | Construction and installation method of large-scale ventilating duct |
| CN113818692A (en) * | 2021-06-21 | 2021-12-21 | 中铁十二局集团有限公司 | Construction method of smoke exhaust duct externally coated with fireproof plate |
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| CN109969962A (en) * | 2019-03-07 | 2019-07-05 | 上海市安装工程集团有限公司 | A kind of automatic blast pipe hanging apparatus and its application method |
| CN110407109A (en) * | 2019-08-08 | 2019-11-05 | 中冶天工集团有限公司 | A kind of assembling device and construction method of large space ultra-large type air hose |
| CN211475097U (en) * | 2020-01-17 | 2020-09-11 | 河南豫消建筑消防安装工程有限公司 | Tuber pipe hoist and mount mounting structure |
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| CN202186853U (en) * | 2011-06-01 | 2012-04-11 | 上海宝冶集团有限公司 | High climber hanger of ventilating duct |
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| CN113818692A (en) * | 2021-06-21 | 2021-12-21 | 中铁十二局集团有限公司 | Construction method of smoke exhaust duct externally coated with fireproof plate |
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Application publication date: 20200417 |