CN210002786U

CN210002786U - super high-rise shaft air pipe device

Info

Publication number: CN210002786U
Application number: CN201920584155.2U
Authority: CN
Inventors: 叶国昌; 孙忠辉; 韩凯凯; 苏伟; 任远敏; 韩承成
Original assignee: China Construction Fourth Bureau First Construction Engineering Co Ltd
Current assignee: China Construction Fourth Bureau First Construction Engineering Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-01-31
Anticipated expiration: 2029-04-25

Abstract

The utility model discloses an super high-rise shaft tuber pipe device, include group tuber pipe (2) that constitute by galvanized steel sheet, every tuber pipe (2) both ends inner wall all is equipped with inner flange (1), and inner flange (1) between tuber pipe (2) and tuber pipe (2) are connected through bolt (3), the utility model discloses a flange installation space of outer flange can be practiced thrift to the tuber pipe of inner flange structure, makes large-scale tuber pipe under the prerequisite that satisfies the design specification requirement, can install in shaft tuber pipe limit and the extremely constrictive well on well limit, and provides convenience for the installation of tuber pipe external fixation support.

Description

super high-rise shaft air pipe device

Technical Field

The utility model discloses the technique relates to super high-rise shaft tuber pipe devices belongs to the electromechanical technical field that installs of construction.

Background

In a super high-rise building, vertical pipes such as a fresh air pipe, a ventilation pipe, a fire-fighting pressurized air supply pipe, and a fire-fighting smoke exhaust pipe are generally provided, and the vertical pipes are collectively called as a shaft air pipe. The main function of the vertical shaft air pipe is ventilation, and meanwhile, the vertical shaft air pipe can also be used for arrangement and installation of electromechanical professional pipelines. The shaft air pipe is vertically installed in a shaft of the building. In the prior art, in order to facilitate installation of the shaft air pipe, the cross section of the shaft is usually designed to be larger, and an operation platform for installing the shaft air pipe can be erected between the shaft air pipe and the inner wall of the shaft. Therefore, the vertical shaft air pipe adopted by the prior art is mostly of an outer flange connecting structure. However, due to the structural limitation of some super high-rise buildings, the cross section of the vertical shaft cannot be designed to be large, so that the distance between the outer wall of the air pipe of the vertical shaft and the wall of the vertical shaft is less than 3 cm. This causes great difficulties in the installation of the shaft air duct. Therefore, the installation can not be carried out according to the construction process of the existing vertical shaft air pipe. And a new construction process is required to be adopted to complete the installation of the vertical shaft air pipe.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide kinds of superelevation layer shaft tuber pipe devices to solve because of the undersize of interval between shaft tuber pipe outer wall and the shaft inner wall, the technical problem of the unable installation of prior art, thereby overcome prior art's not enough.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model discloses an super high-rise shaft tuber pipe device, the device include group tuber pipes that constitute by galvanized steel sheet, every tuber pipe both ends inner wall all is equipped with the inner flange, and the inner flange between tuber pipe and the tuber pipe is through bolted connection the inner flange is the angle bar finished piece, and the angle bar plane at inner flange both ends is outside with the galvanized steel sheet welding, is equipped with the bolt hole of group equipartitions on the inner flange, the bolt from top to bottom is to wearing the bolt hole and the nut connects soon.

Since the technical scheme is used, the utility model discloses compare with prior art, the utility model discloses a flange mounting space of outer flange can be practiced thrift to the tuber pipe of interior flange structure makes large-scale tuber pipe under the prerequisite that satisfies the design standard requirement, can install in shaft tuber pipe limit and the extremely narrow well on well limit, and provides convenience for the installation of the outer fixed bolster of tuber pipe. The air pipe and the accessories are manufactured by adopting a specialized factory, so that the tolerance can be strictly controlled, the installation is convenient, and the effects of high efficiency, accuracy and adjustability are realized. The flame-retardant adhesive tape is adopted to improve the air pipe tightness, so that the air pipe working efficiency is improved. An operation platform does not need to be erected at the floor and the like, so that the working efficiency is improved, the labor cost is saved, the requirement on the construction working face of the site is low, and the construction progress is convenient to improve.

Drawings

Fig. 1 is a schematic view of the construction process of the utility model.

The labels in the figures are: 1-an inner flange; 2-air pipe; 3-a bolt; 4-a base; 5-a pedal; 6-a rope; 7-flame retardant adhesive tape; 8-bolt hole.

Detailed Description

The present invention will be described in further detail in with reference to the following drawings and examples.

The utility model discloses a super high-rise shaft air duct installation process, as shown in figure 1, the process adopts a plurality of sections of air ducts 2 with an inner flange 1 connection structure to install, the air ducts 2 are installed from bottom to top section by section to top, an operator connects the inner flange 1 at the lower end of the upper section of air duct with the inner flange 1 at the upper end of the lower section of air duct by bolts 3 in the air ducts 2 until reaching the design height, at least two persons are matched during installation, the specific process is constructed according to the following steps that ①, a base 4, the air ducts 2 and pedals 5 are manufactured by a professional factory, and fittings of the bolts 3 are purchased, ②, the base 4 is installed on the bottom surface of the shaft, ③, the inner flanges 1 of the two sections of air ducts 2 are connected into a body through the

bolts

3, ④, the bottom ends of the two sections of the air ducts 2 connected into the body are connected with the base 4 through the bolts 3, and persons enter the air ducts 2 to lay the pedals 5 on the inner flange 1 at the connection position of the two sections of the air ducts 2, the other persons connect the air ducts air ducts with the top end of the installed pedals 2, the upper end of the air ducts 2, the upper end of the lower section of the air ducts is connected with the inner flange 2, the inner flange is connected with the inner flange of the inner flange 2.

The length of the pedal 5 is less than the distance between the inner walls of the two opposite sides of the galvanized sheet outside the air pipe 2 and is greater than the distance between the inner edges of the flanges inside the air pipe; the thickness of the pedal 5 is not less than 10 mm. A rope 6 is fixed on the pedal 5, and when the pedal 5 needs to move upwards, a person outside the air pipe 2 pulls the pedal 5 upwards. When the bolts 3 are screwed up, the bolts 3 for connecting the air pipes are all screwed up from top to bottom. The joint of the inner flanges 1 of the two air pipes 2 is padded with a flame-retardant adhesive tape 7; the type of the flame retardant tape 7 is selected according to the use of the air duct.

According to the superelevation layer shaft tuber pipe installation technology constitution and be used for above-mentioned technology the utility model discloses an superelevation layer shaft tuber pipe devices, as shown in figure 1, the device includes group tuber pipe 2 that constitute by galvanized steel sheet, every tuber pipe 2 both ends inner wall all is equipped with inner flange 1, inner flange 1 between tuber pipe 2 and the tuber pipe 2 is connected through bolt 3, inner flange 1 is the angle bar finished piece, the angle bar plane at inner flange 1 both ends is outwards welded with galvanized steel sheet, be equipped with group's equipartition bolt hole 8 on inner flange 1, bolt 3 from top to bottom is to wearing bolt hole 8 and nut revolve joint.

Examples

The method comprises the following steps of firstly preparing preparation work, determining an air pipe installation and hoisting scheme, selecting materials according to the application and size of an air pipe, manufacturing air pipe flanges and accessories, and finally, installing the air pipe, wherein the installation sequence is installation section by section from bottom to top, firstly, bases are made of 50 multiplied by 5 steel angles at the bottom of a vertical shaft, the plane of the steel angles of the bases is downward, the size of the bases is suitable for the air pipe to be placed into, an air pipe shell is made of galvanized steel plates, and the thickness of the galvanized steel plates is determined according to the application and size of the air pipe, and is specifically shown in table 1:

TABLE 1

The materials used for the inner flange and the bracket of the air duct are shown in table 2.

Table 2:

serial number	Dimension b of long side of air duct	Specification of air pipe flange	Specification of air duct bracket	Bolt specification
					1	630< b≤1500	∟30*3	∟40*4	M8*25
2	1500< b≤2500	∟40*4	∟40*4	M8*25
					3	2500< b≤4000	∟50*5	∟50*5	M8*25

The galvanized steel plate and the angle steel adopt a joint angle or a snap-fastener type seaming, the dimension of the galvanized steel plate is allowed to have fixed deviation, the deviation is-1-0 mm when the side length is less than or equal to 300mm, the deviation is-2-0 mm when the side length is more than 300mm, the allowable deviation of the flange inner diameter or the inner edge length is + 1-3 mm, the flatness allowable deviation is +/-1 mm, in addition, the difference of two diagonal lines of a rectangular flange is not more than 2mm, the surfaces of an air pipe and an accessory are smooth, arcs are uniform, the seaming seam is tight, the width is , and a crisscross splicing seam is not required.

The material selection of the inner flange is in accordance with the design requirement and the regulation of the specification, the galvanized steel plate can be connected with the inner flange through rivets, the distance between the rivets is not more than 120mm, the distance between bolt holes of the inner flange is not more than 150mm, the welding seam of the inner flange has no defects of air holes, slag inclusion, cracks, welding leakage and the like, when the flanges are painted and prevented from being corroded, a paint film is uniform, the defects of accumulation, leakage coating, wrinkles, bubbles, color mixing and the like are avoided, when the air pipe is riveted, the center line of the rivet is required to be perpendicular to the plate surface, the rivet head is required to press the plate, the plate seam is closed, the rivets are arranged neatly and uniformly, when the air pipe is connected with the flanges, the flanges are smooth, the width is mm and is not less than 6mm, cracks and holes are avoided, when the side length of the rectangular air pipe is more than or equal to 630mm and the side length of the heat preservation air pipe is more than or equal to 800mm, when the length of the pipe section is more than 1200mm, reinforcing measures are adopted, the air pipe is connected with the flanges, the concave-convex ribs are prevented from being connected with the flanges, and the flanges are not overlapped after the inner flanges, the inner flanges are connected with the flanges, and the flanges are prevented.

When the air pipe is obviously installed, the verticality deviation per meter is less than 2mm, and the total deviation is less than 20 mm. The position of the air pipe is correct when the air pipe is installed in a concealed mode, and no obvious deviation exists. The bracket outside the wind pipe is directly fixed on a shear wall or a beam of the structural hole by adopting angle steel or channel steel. After the air pipes are qualified after arrival and inspection, the air pipes are arranged and installed according to a draft before installation. And hoisting according to the position of the drawing. In order to ensure the safety of operators, all bolts for connecting the air pipes are downward.

The joint of the air pipe and the air pipe is provided with a flame-retardant adhesive tape, and the air supply and the positive pressure air supply adopt 8501 flame-retardant adhesive tapes. The smoke exhaust system adopts 9501 flame-retardant adhesive tape.

Whether the size of a vertical shaft hole is correct or not needs to be checked before installation, whether building rubbish in the vertical shaft is cleaned up or not needs to be guaranteed, no movable object exists in the vertical shaft, the top of the vertical shaft is sealed by a reliable object, the objects on other floors are prevented from being hung into the vertical shaft, and operators are prevented from being injured by falling of the objects into the vertical shaft.

When the device is specifically installed, the device is installed,

firstly, two pedals with the sum being 10mm smaller than the inner diameter of the air duct are manufactured, the thickness of the pedals is more than 10mm, 30 x 3 angle iron is used for reinforcement, pedals with the same size are processed, two small holes are formed in the proper positions of the three pedals, ropes with proper lengths are tied for installing connecting pipes, the two sections of inner flange air ducts (wherein sections are seal heads and bolts are downward) are placed on a base which is installed on the lowest end well for adjustment, the air duct is fixed with the base, the two pedals are placed on an inner flange which is connected with the two sections of air ducts, people enter the pedals of the air duct, then the third pedal is placed in the air duct, the rest people place the lower section of air duct, the people in the air duct tighten the air duct on the bolts, the people in the air duct place the third pedal on an inner flange which is tightened by the upper section of air duct, the people stand to place the upper pedal and place the lower pedal until the upper flange 357 section of the upper section of the air duct is tightened by the people, and the people put the lower section of the upper section of the air duct on the lower section of the air duct, and the upper section of the lower section of the air duct, the pedals are placed until the upper section 355638 of the upper section of the lower section of the upper section of.

Claims

The utility model provides a super high-rise shaft air pipe device, which is characterized in that the device comprises groups of air pipes (2) formed by galvanized steel sheets, inner flanges (1) are arranged on the inner walls of two ends of each air pipe (2), and the inner flanges (1) between the air pipes (2) are connected through bolts (3).
2. The ultra-high-rise shaft air pipe device according to claim 1, wherein the inner flange (1) is an angle iron part, the angle iron planes at two ends of the inner flange (1) are outwards welded with the galvanized steel plate, groups of evenly distributed bolt holes (8) are formed in the inner flange (1), and the bolts (3) penetrate through the bolt holes (8) from top to bottom and are connected with nuts in a screwing mode.