CN215060111U

CN215060111U - Large-diameter vertical pipe mounting and fixing structure

Info

Publication number: CN215060111U
Application number: CN202120961181.XU
Authority: CN
Inventors: 刘勇庆; 籍跃奎; 卫芷; 穆锦峰; 秦宏磊
Original assignee: China Shanxi Sijian Group Co Ltd
Current assignee: China Shanxi Sijian Group Co Ltd
Priority date: 2021-05-07
Filing date: 2021-05-07
Publication date: 2021-12-07
Anticipated expiration: 2031-05-07

Abstract

The utility model belongs to the technical field of the building installation, specifically a heavy-calibre riser installation fixed knot constructs. The pipeline supporting device is arranged at the position of the pipeline mounting hole of the bottom floor slab, and is fixedly connected with a pipeline. The utility model discloses fine solution traditional riser just adorn method and flip-chip method ubiquitous weld bond many, operating personnel intensity of labour big scheduling problem, to guaranteeing safety, save the time limit for a project, improve quality and have positive effect.

Description

Large-diameter vertical pipe mounting and fixing structure

Technical Field

The utility model belongs to the technical field of the building installation, specifically a heavy-calibre riser installation fixed knot constructs.

Background

At present, in the civil building electromechanical installation project, a vertical pipe is used as a 'main artery' for conveying cold and heat sources and power, the vertical pipe construction is a key process and important content, and the importance of the construction progress, quality, safety and cost of the vertical pipe to a construction unit is self evident.

For the installation of a large-diameter riser, the traditional construction method comprises two methods:

1. the normal installation method is that the pipeline is installed section by section from low to high, the welding operation position of the pipeline is lifted section by section, the pipeline needs to be transported to each floor in sequence, and the pipeline is lifted from a horizontal state to a vertical state and is synchronously sent into a pipeline well.

And (3) limitation: due to the limitations of small floor height and narrow piping shaft space, a 12m length of spiral welded steel pipe is often cut into about 4m sections for transportation and installation.

This method has two problems:

(1) the number of welded junctions is increased, and unstable factors are increased for the strength and the tightness of a pipeline system besides the increase of welding workload;

(2) the pipe sections need to be lifted from the horizontal state to the vertical state by manpower and are synchronously conveyed into the pipe shaft, the labor intensity of operators is high, and potential safety hazards exist in the carrying and installing processes. .

2. The upside-down mounting method is that the pipeline is reversely mounted section by section from top to bottom, all welded junctions connected with the pipeline are welded at the same position, after one section of pipeline is welded, the fixing device is loosened, the height of one section is lifted upwards, the next section of pipeline is mounted at the lower part of the fixed device, and the process is circulated until the whole vertical pipeline is mounted. In general, the pipeline is transported to one layer or the next layer, and as in the normal installation method, the pipeline section is lifted from the horizontal state to the vertical state and is synchronously sent into the pipeline well.

And (3) limitation: due to the limitations of small floor height and narrow piping shaft space, a 12m length of spiral welded steel pipe is also cut into about 4m sections for transportation and installation.

There are three problems with this approach:

(1) the whole pipeline is required to be cut into a plurality of pipeline sections (generally 4m section) of about 4m according to the height of a construction floor, so that the number of welded junctions is increased;

(2) the required top floor is provided with a lifting point, when the pipeline is lifted, the weight of the whole pipeline is concentrated on the lifting point, and the strength of the lifting point and the strength of the top floor are tested;

(3) the installation process is loaded down with trivial details to increase a section of riser as an example, before promoting, need loosen the fixing device of every layer of riser and unload, then promote, promote after finishing, again with the fixing device fastening of each layer of riser, the number of piles is more, this work load is big more. After installing a section of riser, repeat the above-mentioned steps again. While the installation process is complicated, certain potential safety hazards exist.

It can be seen that the problems that the traditional riser forward-installation method and the traditional riser reverse-installation method generally have the problems that the pipeline needs to be cut according to the floor, welding openings are multiple, the labor intensity of operators is high and the like are solved, and the method has very important practical significance for accelerating the construction progress, improving the construction quality and ensuring safe construction.

Disclosure of Invention

The utility model discloses a solve above-mentioned problem, provide a heavy-calibre riser installation fixed knot construct.

The utility model adopts the following technical proposal: the utility model provides a heavy-calibre riser installation fixed knot constructs, includes upper portion restraint device and lower part strutting arrangement, is provided with the pipe-line installation hole from the floor of top layer to the corresponding position department of floor of bottom, sets up the pipeline in the pipe-line installation hole, and upper portion restraint device installs the pipe-line installation hole department at the floor of top layer and fixes with pipe connection, and lower part strutting arrangement sets up the pipe-line installation hole department at the floor of bottom and supports in the pipeline bottom.

Further, upper portion restraint device includes the loop configuration who encloses by a plurality of groups snap ring, through U type splint and bolt fastening between the adjacent snap ring, and the outside of loop configuration is provided with the fixed frame that can adjust size, passes through screw rod fixed connection between fixed frame's inboard and the U type splint.

Further, the snap ring is provided with 4 groups, and each snap ring is 1/4 ring shape, and the snap ring tip stretches out to the outside to there is the bolt hole at stretching out the end drilling, and the U type splint cover is served in stretching out of two adjacent snap rings.

Further, fixed frame is enclosed by 4 groups of channel-section steel I, through L shaped steel board and bolt fastening between the adjacent channel-section steel I, and channel-section steel I passes through expansion bolts with the floor and fixes, and channel-section steel I side is provided with a plurality of groups of bolt holes, and the bolt hole is used for being connected with the screw rod.

Further, lower part strutting arrangement includes the cruciform structure of piecing together by 4 group channel-section steel II, and channel-section steel II passes through expansion bolts to be fixed on the floor, and a plurality of recesses have been seted up to channel-section steel II's upside, and each recess center is half of each bore pipeline external diameter to the central axis distance of four channel-section steel devices, through corner fittings and bolt fastening between 4 group channel-section steel II.

Compared with the prior art, the utility model discloses fine solution traditional riser just adorn method and flip-chip method ubiquitous weld joint many, operating personnel intensity of labour big scheduling problem, to guaranteeing safety, saving the time limit for a project, the improvement quality has positive effect.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the upper restraint installation;

FIG. 3 is a schematic view of the lower support assembly installation;

FIG. 4 is a schematic view of the lower support structure;

FIG. 5 is a schematic structural view of a channel II;

FIG. 6 is a schematic view of the lower support structure;

FIG. 7 is a schematic structural view of a channel I;

in the figure, 1-upper restraint device, 2-floor, 3-pipeline, 4-pipeline mounting hole, 5-lower support device, 1.1-snap ring, 1.2-channel steel I, 1.3-U-shaped clamp plate, 1.4-screw, 5.1-channel steel II, 5.2-corner fitting and 5.3-groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, a large-diameter riser installation and fixation structure includes an upper restraint device 1 and a lower support device 5, a pipeline installation hole 4 is provided from a top floor 2 to a bottom floor 2 corresponding position, a pipeline 3 is provided in the pipeline installation hole 4, the upper restraint device 1 is installed at the pipeline installation hole 4 of the top floor and is connected and fixed with the pipeline 3, and the lower support device 5 is installed at the pipeline installation hole 4 of the bottom floor 2 and is supported at the bottom of the pipeline 3.

As shown in fig. 2, 6 and 7, the upper restraint device 1 includes an annular structure formed by surrounding a plurality of groups of snap rings 1.1, adjacent snap rings 1.1 are fixed by U-shaped clamp plates 1.3 and bolts, a fixing frame with adjustable size is arranged on the outer side of the annular structure, and the inner side of the fixing frame is fixedly connected with the U-shaped clamp plates 1.3 by screws 1.4. The snap ring 1.1 is provided with 4 groups, and each snap ring 1.1 is 1/4 ring shape, and snap ring 1.1 tip stretches out to the outside to there is the bolt hole at stretching out the end drilling, and U type splint 1.3 cover is on two adjacent snap ring 1.1's the end that stretches out.

Fixed frame is enclosed by 4 groups channel steel I1.2, through L shaped steel board and bolt fastening between the adjacent channel steel I1.2, and channel steel I1.2 passes through expansion bolts with floor 2 and fixes, and channel steel I1.2 side is provided with a plurality of groups of bolt holes, and the bolt hole is used for being connected with screw rod 1.4.

The upper restraint device is mainly used for restraining the upper end of the pipeline and preventing the pipeline from moving in the horizontal direction.

As shown in fig. 3, 4 and 5, the lower supporting device 5 comprises a cross structure spliced by 4 groups of channel steels II5.1, the channel steels II5.1 are fixed on the floor slab 2 through expansion bolts, a plurality of grooves 5.3 are formed in the upper side of the channel steels II5.1, the distance from the center of each groove to the central axis of the four channel steel devices is half of the outer diameter of each caliber pipeline, and the 4 groups of channel steels II5.1 are fixed through angle pieces 5.2 and bolts.

Lower support device action 1: the weight of the pipeline is borne, and the pipeline is prevented from falling; action 2: carry on spacingly to the pipeline lower extreme, prevent that the pipeline from moving by the side.

The utility model discloses a work progress as follows:

firstly, carefully checking a steel wire rope, a chain block, a lifting lug and the like before hoisting, and returning to the bottom of a tower crane driver to enable the tower crane driver to be familiar with the operation flow, warning a hoisting route, prohibiting irrelevant personnel from entering the tower crane, and carrying out trial hoisting before formal hoisting, wherein the hoisting is carried out for 10cm, and the formal hoisting is carried out without abnormal conditions.

Secondly, determining the position of a temporary fixing base of the pipeline according to the floor height and the lengths of the pipeline and the steel wire rope, combining the temporary fixing base device (connecting four channel steels through corner pieces by using bolts and nuts), and fixing the temporary fixing base device on a floor slab by using expansion bolts.

Thirdly, after the pipeline enters the building from the reserved hole of the pipeline well pipeline, the feeding condition of each layer needs to be observed.

And fourthly, after the upper end of the pipeline completely enters the pipeline well, commanding a tower crane driver through an interphone, slowly placing the pipeline on the temporary fixing base, and clamping the pipeline into the groove on the base channel steel.

And fifthly, assembling and fixing the temporary fixed upper restraint device on the floor where the upper end of the pipeline is located. According to the caliber of the pipeline, four channel steels are connected through corner pieces by using bolts and nuts, so that the frame is positioned in the middle of a reserved hole of the pipeline. The pipeline is wrapped by four clamping rings, the clamping rings are connected by clamps and fixed on the channel steel frame through screw rods, and four nuts on each screw rod are adjusted to ensure that the pipeline is firmly connected with the restraint device.

And sixthly, disconnecting the tower crane from the pipeline, and using a chain block at the upper part of the pipeline well to enable the pipeline to fall to a preset elevation position.

Seventhly, checking the verticality of the pipeline by using the magnetic line weight, connecting the pipeline and reliably connecting the pipeline with the installed support.

And eighthly, performing circular operation, and determining the installation number according to the current main body progress.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a heavy-calibre riser installation fixed knot constructs which characterized in that: including upper portion restraint device (1) and lower part strutting arrangement (5), floor (2) from the top layer is provided with pipeline mounting hole (4) to floor (2) corresponding position department of bottom, set up pipeline (3) in pipeline mounting hole (4), upper portion restraint device (1) is installed in pipeline mounting hole (4) department of top layer floor and is connected fixedly with pipeline (3), lower part strutting arrangement (5) set up pipeline mounting hole (4) department and support in pipeline (3) bottom of bottom floor (2).

2. The heavy caliber riser installation and fixation structure of claim 1 wherein: the upper portion restraint device (1) include the loop configuration who encloses by a plurality of groups snap ring (1.1), through U type splint (1.3) and bolt fastening between adjacent snap ring (1.1), the outside of loop configuration is provided with the fixed frame that can adjust size, passes through screw rod (1.4) fixed connection between the inboard of fixed frame and U type splint (1.3).

3. The heavy caliber riser installation and fixation structure of claim 2 wherein: snap ring (1.1) be provided with 4 groups, each snap ring (1.1) is 1/4 ring shape, snap ring (1.1) tip stretches out to the outside to there is the bolt hole at stretching out the end drill, U type splint (1.3) cover is served in the extension of two adjacent snap rings (1.1).

4. The heavy caliber riser installation and fixation structure of claim 2 or 3, wherein: the fixed frame is enclosed by 4 groups of channel steel I (1.2), adjacent channel steel I (1.2) are fixed through an L-shaped steel plate and bolts, the channel steel I (1.2) is fixed with the floor (2) through expansion bolts, a plurality of groups of bolt holes are formed in the side face of the channel steel I (1.2), and the bolt holes are used for being connected with the screw rods (1.4).

5. The heavy caliber riser installation and fixation structure of claim 4 wherein: lower part strutting arrangement (5) including the cruciform structure who is pieced together by 4 group channel-section steel II (5.1), channel-section steel II (5.1) are fixed on floor (2) through expansion bolts, a plurality of recesses (5.3) have been seted up to the upside of channel-section steel II (5.1), the central shaft distance of each recess center to four channel-section steel devices is half of each bore pipeline external diameter, through corner fittings (5.2) and bolt fastening between 4 group channel-section steel II (5.1).