CN108644483A - A kind of clean air duct and its making and installation method - Google Patents
A kind of clean air duct and its making and installation method Download PDFInfo
- Publication number
- CN108644483A CN108644483A CN201810807620.4A CN201810807620A CN108644483A CN 108644483 A CN108644483 A CN 108644483A CN 201810807620 A CN201810807620 A CN 201810807620A CN 108644483 A CN108644483 A CN 108644483A
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- Prior art keywords
- air hose
- air duct
- flange
- rectangular
- reinforced liner
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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
- F16L9/00—Rigid pipes
- F16L9/02—Rigid pipes of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- F16L9/00—Rigid pipes
- F16L9/003—Rigid pipes with a rectangular cross-section
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Duct Arrangements (AREA)
Abstract
The invention discloses a kind of clean air ducts, including several section rectangular air ducts, several reinforced liners, several enhancing holders and several fixing brackets；The rectangular air duct is sequentially coaxially fixed on one；Lower part of the enhancing support casing loaded on often section rectangular air duct outer wall, and/or, top, for being fixedly connected with floor layer；The fixing bracket is set in outside every section rectangular air duct, for being fixedly connected with floor layer；The reinforced liner is set in the middle part of every section rectangular air duct outer wall, and the reinforced liner is fixed on fixing bracket.The present invention provides a kind of clean air duct of standardization and its construction method of making and installation for unit in charge of construction and operator, can play the role of standard construction unit and operator's standard construction.
Description
Technical field
The present invention relates to industrial pipeline mounting technique fields, and in particular to a kind of clean air duct and its making and installation side
Method.
Background technology
With the rapid development of economy, the quality of air quality directly influences people’s lives, thus air cleaning journey
Degree becomes focus instantly.
In ventilation and air conditioning engineering construction, such air-conditioning system is relatively low to air quality requirements, to dust-laden in air
Concentration does not have specific requirement.
But in hospital, laboratory, precision process workshop etc. in the higher place of air quality requirements, it usually needs
Configure clean air-conditioning system.Due to clean air-conditioning system integrally to the cleannes of air hose, unit equipment etc., sealing requirements compared with
It is high.Thus, in the work progress of clean air-conditioning system, the processing quality of each link all has to comply with requirement, otherwise, debugging
It is difficult to reach required standard when examination.
In ventilation and air conditioning engineering construction, general unit in charge of construction and operator are generally familiar with the making of common air hose and apply
Work method.And the making and installation method to the air hose in clean air conditioner engineering lack practical experience, cause to influence final tune
Experiment is received.And in existing specification, wanting for principle has only been made to the making, installation, construction etc. of the air hose in clean air conditioner engineering
It asks, there is no specific making and job specfications.
Thus, a kind of construction method of standardization is badly in need of for clean air conditioner engineering air hose and its making, installation, with rule
The work progress of model unit in charge of construction and operator so that the debugging examination of clean air conditioner engineering reaches required standard.
Invention content
The purpose of the present invention is to provide a kind of clean air duct and its making and installation methods, to solve above-mentioned background technology
In only made the requirement of principle in the existing specification that refers to clean air conditioner engineering air hose and its making, installation etc., do not have
The problem of specific construction method, provides a kind of construction method of standardization, with the construction of standard construction unit and operator
Process.
To achieve the above object, the present invention provides the following technical solutions：A kind of clean air duct, including several section rectangle wind
Pipe, several reinforced liners, several enhancing holders and several fixing brackets；The rectangular air duct is sequentially coaxially fixed on one；Institute
Enhancing support casing is stated loaded on the lower part for often saving rectangular air duct outer wall, and/or, top, for being fixedly connected with floor layer；It is described solid
Fixed rack is set in outside every section rectangular air duct, for being fixedly connected with floor layer；The reinforced liner is set in every section rectangle wind
In the middle part of pipe outer wall, and the reinforced liner is fixed on fixing bracket.
The production method of clean air duct of the present invention, includes the following steps：
(1) rectangular air duct cuts blanking：
A, the four sides of air hose is divided into two parts blanking；
B, when the long edge size of rectangular air duct is less than or equal to 1250mm, plank cuts blanking and does not reserve flange；Work as square
When the long edge size of shape air hose is more than 1250mm, plank cuts blanking and reserves flange；
(2) flange of plank, folding side：
A, the upper and lower side of plank is folded into flange flange respectively：The flange of air hose should be close to flange, flange even width and
No less than 6mm, stings seam and four corners should be without cracking and hole；
B, according to air hose size, by the long side folding side of plank：
When long edge size is less than or equal to 1250mm, according to air hose size, the plank long side directly side of folding；
When long edge size is more than 1250mm, vertical flange is first folded, according still further to air hose size by long side folding side；Wherein,
Vertical flange is used as the welding surface of air hose adjacent surface；
(3) angle-steel blanking, reinforced liner are prefabricated：
A, according to the specification of air hose, angle-steel blanking is simultaneously welded into rectangular reinforcement holder；
(4) air hose group to, set reinforced liner：
A, by the stainless steel board group behind one group of flange, folding side to good；
B, the reinforced liner made is sleeved on group on good stainless steel board group outer wall；
(5) air hose longitudinal measure is molded；
(6) several section air hose transverse welds；
(7) reinforcement of weld holder：The Zinc-coated angle steel reinforced liner packaged is moved into fixed reinforcing position and and wind
Pipe welds.
Further, in step (2), a, plank upper and lower side fold the flange flange of 10-20mm respectively；B, when long side ruler
Very little when being more than 1250mm, the vertical flange width that folds is 10-20mm.
Further, in step (3), when air hose long edge size is between 1250-2500mm, in every section air hose pipeline section
Centre reinforces one of reinforced liner；
When air hose long edge size is more than 2500mm, one of reinforced liner is reinforced among every section air hose pipeline section, and two
Add one of flange frame at section air hose docking.
Further, in step (5), when long edge size is less than or equal to 1250mm, the seam shape of air hose longitudinal measure
Formula is angle seam；When long edge size is more than 1250mm, the joint form of air hose longitudinal measure is overlap joint angle seam.
The installation method of clean air duct of the present invention, includes the following steps：
(1) branch in suppot hanger of duct, hanger installation：Distinguish fixed 2 Zinc-coated angle steels in vertical shaft top；Under Zinc-coated angle steel
A sunpender is respectively fixedly connected in end；The both ends of crossbeam are fixedly arranged on to the lower end of sunpender respectively；
(2) vertical shaft air hose lifts：The air hose made is lifted to each layer successively；
(3) enhance holder, fixing bracket installation：The enhancing holder, fixing bracket are fixedly arranged on support floor simultaneously respectively
It is set in air hose outer wall；The reinforced liner is welded on fixing bracket；
(4) fire resisting damper is installed；
(5) plenum chamber is installed；
(6) drainpipe is installed：In drainpipe of the bottom duct installation with water seal resistance of setting, and lead to advantageous discharge
Position；
(7) acid wash passivation：It first degreases, welding slag and splash, then uses acid wash passivation cream acid wash passivation, then use clear water
It rinses well；
(8) finished product protection；
(9) air hose and equipment are adiabatic：Heat preservation construction is carried out to horizontal mist extractor air hose.
Further, the sunpender in step (1) is made of harness cord bar；Crossbeam uses Zinc-coated angle steel or galvanizing bath steel
Make.
Further, the enhancing holder in step (3) includes the flange frame being set on rectangular air duct and two channel steels；Institute
State that channel steel is parallel to be fixedly arranged on floor, the flange frame is fixedly arranged on channel steel, and is set in rectangular air duct outer wall.
Further, the fixing bracket in step (3) includes the rectangular frame being set on air hose and several supporting rods；
The supporting rod is fixed on by expansion bolt on floor；The rectangular frame is fixedly arranged on the upper end of supporting rod；It is set in air hose
On reinforced liner be welded on rectangular frame.
Further, in step (9)：Using 50mm thickness unit weights 48Kg/m3Centrifugally glass-wool as air hose thermal insulation material.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention provides clean air duct and its making and the installation of a kind of standardization for unit in charge of construction and operator
Construction method, standard construction unit and operator's standard construction can be played the role of；
(2) present invention significantly improves air hose inleakage, solves the keys such as air hose inleakage in traditional construction is big and asks
Topic, reduces construction cost, improves construction and installation quality.
Description of the drawings
Fig. 1 is the production flow diagram of clean air duct；
Fig. 2 is the stainless steel plate group welding schematic diagram behind one group of flange, folding side；
Fig. 3 is two section air hose transverse weld schematic diagrames；
Fig. 4 is the assembling schematic diagram of air hose and reinforced liner；
Fig. 5 is the welding schematic diagram of air hose and reinforced liner；
Fig. 6 is the branch in suspension and support, hanger scheme of installation；
Fig. 7 is air hose lifting schematic diagram；
Fig. 8 is the structural schematic diagram that an enhancing holder is set with outside air hose；
Fig. 9 is the structural schematic diagram that two enhancing holders are set with outside air hose；
Figure 10 is to be set with support bracket fastened structural schematic diagram outside air hose；
Figure 11 is finished product protection team management flow chart；
In figure：1- air hoses, 2- reinforced liners, 3- Zinc-coated angle steels, 4- sunpenders, 5- crossbeams, 6- flange frames, 7- channel steel heads, 8-
Harness cord bar, 9- rectangular frames, 10- supporting rods.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes.Obviously, described embodiment is only a part of the embodiment of the present invention, instead of all the embodiments.Base
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall within the protection scope of the present invention.
Embodiment 1：- Fig. 5 is please referred to Fig.1, the present invention provides a kind of technical solution：A kind of clean air duct, including several sections
Rectangular air duct, several reinforced liners 2, several enhancing holders and several fixing brackets；The rectangular air duct is sequentially coaxially fixed on
One；Lower part of the enhancing support casing loaded on often section rectangular air duct outer wall, and/or, top connects for being fixed with floor layer
It connects；The fixing bracket is set in outside every section rectangular air duct, for being fixedly connected with floor layer；The reinforced liner 2 is set in
Often in the middle part of section rectangular air duct outer wall, and the reinforced liner 2 is fixed on fixing bracket.
Please refer to Fig.1-Fig. 5, the installation method of clean air duct of the invention, by taking engineering mist extractor air hose as an example, including such as
Lower step：
(1) preparation of construction：
It is familiar with the technical data such as drawing, specification, works out and organization scheme is made a joint checkup.It is required according to owner, this engineering mist extractor
Air hose is made of stainless steel plate, and the steel plate thickness of mist extractor air hose is pressed《Code for acceptance of construction quality of conditioning works》It is high
Pressure system is chosen, and the transverse direction and longitudinal direction seam crossing of all air hoses 1 is all made of argon-are welding technology；Wind is made using Zinc-coated angle steel
The reinforced liner 2 of pipe 1；
(2) stainless steel plate cuts blanking：
A, intend that width is used to carry out blanking for the stainless steel roll bending of 1250mm；Air hose 1 is rectangular air duct；
B, the four sides of air hose 1 is divided into two parts blanking,
When the long edge size of rectangular air duct is less than or equal to 1250mm, stainless steel plate cuts blanking and does not reserve flange, example
Such as：The length and width of air hose 1 are a height of：When 1000mm × 400mm × 1250mm, in week a length of 2800mm, cutting two block length width is：
The plank of (1000+400) mm × 1250mm；
When the long edge size of rectangular air duct is more than 1250mm, stainless steel plate cuts blanking and reserves flange, such as：Air hose 1
Length and width it is a height of：When 1500mm × 600mm × 1250mm, in week a length of 4200mm, cutting two block length width is：(1500+600+
15) plank of mm × 1250mm, wherein 15mm is as flange；
(3) flange of plank, folding side：
A, the upper and lower side of plank is folded to the flange flange of 15mm respectively using folding side's machine；After flange, length that air hose 1 often saves
Degree is (1250-15 × 2) mm=1220mm,
B, then, according to air hose size, by the long side folding side of plank：
When long edge size is less than or equal to 1250mm, according to air hose size, the plank long side directly side of folding；
When long edge size is more than 1250mm, the vertical flange of 15mm is first folded, rolls over long side according still further to 1 size of air hose
Side；Wherein, vertical flange is used as the welding surface of 1 adjacent surface of air hose；
Points for attention：Shearing, flanging, seaming etc. accomplish one-pass molding, reduce manual operations, avoid striking through hammering because of plank
Beating causes internal stress in turn result in non-uniform deformation, to control air hose deflection；
(4) angle-steel blanking, reinforced liner 2 are prefabricated：
A, determine that angle steel specification used in air hose reinforced liner 2 is ∠ 30mm × 30mm × 3mm；
B, according to the specification of air hose 1, angle-steel blanking is simultaneously welded into rectangular reinforcement holder 2；
Wherein, when 1 long edge size of air hose is between 1250-2500mm, add together in intermediate reinforce of every section 1 pipeline section of air hose
Clamped frame 2；
When 1 long edge size of air hose is more than 2500mm, one of reinforced liner 2 is reinforced among every 1 pipeline section of section air hose, and two
Add a flange frame 6 made of 6.3# galvanizing bath steel at section 1 docking of air hose；
(5) 1 group of air hose is to, set reinforced liner 2：
A, by the stainless steel board group behind one group of flange, folding side to good；
B, the reinforced liner 2 made is sleeved on group on good stainless steel board group outer wall；
(6) 1 longitudinal measure of air hose is molded：
A, group fixes good stainless steel board group with fixture；
B, the longitudinal measure of stainless steel board group is carried out：
Wherein, when long edge size is less than or equal to 1250mm, the joint form of 1 longitudinal measure of air hose is angle seam；
When long edge size is more than 1250mm, the joint form of 1 longitudinal measure of air hose is overlap joint angle seam；
Points for attention：It is inverse from intermediate toward both ends when welding to be heated and cooling down with making 1 even weld of air hose to reduce deformation
To segmentation welding；Group clock synchronization is continuously welded first by 1 spot welding of air hose after being fixed with fixture again, the height that when welding is formed
Temperature, in cooling procedure generated contraction distortion are overcome by fixture, achieve the purpose that prevent deformation；
(7) several 1 transverse welds of section air hose：
Several molding air hoses 1 that save are placed on clamping fixture table, transverse weld is carried out after being fixed with fixture；
Points for attention：The anti-deformation processing of stainless steel air hose 1 in the production process：1. in the accessory for making more complex shape
When first under good model, then blanking of crossing on stainless steel, in order to avoid lower wrong material causes to do over again, generates unnecessary deformation；2. to the greatest extent
Amount accomplishes one-pass molding using mechanical processing, such as shearing, flanging, seaming, reduce it is hand-manipulated, because plank beats meeting through hammering
Cause internal stress to cause non-uniform deformation, beat the more stress of number are bigger, plank is hardened, cause processing difficulties, be easy
It is deformed；
(8) reinforcement of weld holder 2：
The Zinc-coated angle steel reinforced liner 2 packaged is moved to fixed reinforcing position, is clipped and is welded with fixture；
Points for attention：Since Zinc-coated angle steel reinforced liner 2 only plays the role of reinforcing supporting, therefore the welding of itself and air hose 1
Discontinuous welding can be used, and (fusion length of discontinuous welding is unified for 30mm, and the spacing of discontinuous welding is unified for 30mm.Before discontinuous welding, to make
Its spacing is uniform, and the position of discontinuous welding, then row welding are first finished on air hose 1).
Fig. 6 Figure 11 is please referred to, the installation method of clean air duct of the invention is installed with the vertical standpipe of stainless steel air hose 1
For in the vertical shaft air duct for built by laying bricks or stones completion, include the following steps：
(1) branch in suppot hanger of duct, hanger installation：
A, the sunpender 4 (harness cord) in rectangular air duct suspension and support and crossbeam 5 (Zinc-coated angle steel or zinc-plated channel steel) model can be according to
Following table executes：
| Air hose long side b (mm) | Harness cord (mm) | Zinc-coated angle steel | Zinc-plated channel steel |
| 0 b≤400 ＜ | φ8 | ∠30×3 | |
| 400 b≤1250 ＜ | φ8 | ∠40×4 | |
| 1250 b≤2000 ＜ | φ10 | ∠50×5 | |
| B ＞ 2000 | φ10 | [5 |
B, distinguish fixed 2 Zinc-coated angle steels 3 in vertical shaft top；A sunpender 4 is respectively fixedly connected in 3 lower end of Zinc-coated angle steel；It will be horizontal
The both ends of beam 5 are fixedly arranged on the lower end of sunpender 4 respectively；
(2) vertical shaft air hose lifts：
A, lifting device is suspension hook, jack and pulley；
B, structure reserved opening size is checked, unwrapping wire；
C, the air hose 1 made is lifted to each layer successively；
Points for attention：1. stopping lifting as 1 liftoff 200-300mm of air hose, and go through the stress of jack and pulley
Whether point, the suspension hook for lifting air hose 1 are secured, after no problem identified, continue to be lifted to installation site；2. hang air hose 1, it is necessary to have
It more than two people operates；3. vertical shaft floor height is more than 4 layers, 2, hoist engine of lifting is set at 4 layers；4. to ensure construction peace
Entirely, lifting layered setting professional nurses and is equipped with intercom；
(3) enhance holder, fixing bracket installation：
A, enhancing holder installation：
When rectangular air duct long edge size is within 5 meters of 2000-2500mm and floor height, every layer separately installed one enhances branch
Frame, enhancing holder are fabricated to flange frame 6 using No. 8 channel steels, and flange frame 6 is set in outside rectangular air duct；The upper surface fixed 8 of floor
Number channel steel head 7, the bottom surface of flange frame 6 is fixedly arranged on the top surface of channel steel head 7；
When rectangular air duct long edge size is within 5 meters of 2501-4000mm and floor height, the first scheme is：Every layer is individually pacified
An enhancing holder is filled, enhancing holder is fabricated to flange frame 6 using No. 10 channel steels, and flange frame 6 is set in outside rectangular air duct；Floor
The fixed No. 10 channel steel heads 7 in upper surface, the bottom surface of flange frame 6 is fixedly arranged on the top surface of channel steel head 7；Second scheme is：Every layer of peace
Two enhancing holders are filled, enhancing holder is fabricated to flange frame 6 using No. 8 channel steels, and flange frame 6 is set in outside rectangular air duct, wherein
Be connected No. 8 channel steel heads 7 between one flange frame 6 and the upper surface of lower floor plate, solid between another flange frame 6 and the lower surface of upper floor plate
Connect No. 8 channel steel heads 7, several harness cord bars 8 are connected between two flange frames 6；
B, fixing bracket is installed：
Fixing bracket is made of channel steel, including the rectangular frame 9 being set on air hose 1 and several supporting rods 10；Institute
Supporting rod 10 is stated to be fixed on floor by expansion bolt；The rectangular frame 9 is fixedly arranged on the upper end of supporting rod 10；It is set in wind
Reinforced liner 2 on pipe 1 is welded on rectangular frame 9；
(4) fire resisting damper is installed：
Points for attention：1. fire resisting damper is mounted on the inside of furred ceiling or wall, be easy to check valve open state and into
The position of row hand-reset opens up inspection socket, and inspects periodically；2. when fire resisting damper diameter or long edge size are more than or equal to 630mm
When, set up independent branch, hanger；3. air hose 1 passes through fire compartment, the steel plate that thickness is 1.6mm should be set and make fireproof casing,
It is used in combination ferro-cement or other non-combustible materials to fill；
(5) installation of plenum chamber：
Points for attention：1. plenum chamber should be separately provided, hanger, air hose 1 cannot be utilized to bear the weight of plenum chamber, it is 2. quiet
To be conducive to individual inspiration, dismounting, repair and replacement when pressure case installation；
(6) drainpipe is installed：
Model DN70 is installed in riser bottom and carries the drainpipe of water seal resistance, and leads to advantageous exhaust position；
(7) acid wash passivation：
After the completion of welding, weld seam and 1 surface of air hose are cleared up：That is, first degreasing, welding slag and splash, then
It is rinsed well with acid wash passivation cream acid wash passivation, then with clear water；
(8) finished product protection：
The aspect that stainless steel air hose should be noted is more, such as chemical attack, electrochemical corrosion, the stress corrosion after surface tear
Deng so finished product protection work must be carried out in the construction process；
This engineering construction period is long, and construction team is more, and multi-level intersection flowing water workload is big, and material equipment type is more,
The protection of finished product is related to the quality and progress of entire engineering, it is necessary to pay much attention to finished product and equipment protection work, strict implement
Finished product and equipment protection measure.For this reason, it may be necessary to which project management department under being uniformly coordinated of Zong Bao project management departments, establishes and improve with project manager
Headed by, the linkage of each functional department, and obtain EPC Project portion and the finished product protection of other subcontractor's active responses " at
Product protect group ", it is self-disciplined, Methodistic to carry out interspersed operation, ensure the raw material for construction, manufactured goods, semi-finished product, work
Sequence product and completed branch subitem product are effectively protected, and ensure that the equipment of all installations is not damaged, scratches, really
Protect the construction quality of entire engineering；
In addition, in the welding process of air hose, region need to be made in processing factory and be laid with woollen blanket；
(9) air hose and equipment are adiabatic：
Heat preservation construction is carried out to horizontal mist extractor air hose：Using 50mm thickness unit weights 48Kg/m3Centrifugally glass-wool as wind
Pipe thermal insulation material (air hose 1 is installed to be carried out at the same time with heat preservation).
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understand without departing from the principles and spirit of the present invention, can to these embodiments carry out it is a variety of variation, modification, replace and
Modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of clean air duct, it is characterised in that：Including several section rectangular air ducts, several reinforced liners, several enhancing holders and
Several fixing brackets；The rectangular air duct is sequentially coaxially fixed on one；The enhancing support casing, which is loaded on, often to be saved outside rectangular air duct
The lower part of wall, and/or, top, for being fixedly connected with floor layer；The fixing bracket is set in outside every section rectangular air duct, is used
It is fixedly connected in floor layer；The reinforced liner is set in the middle part of every section rectangular air duct outer wall, and the reinforced liner is connected
In on fixing bracket.
2. a kind of production method of clean air duct described in claim 1, which is characterized in that include the following steps：
(1) rectangular air duct cuts blanking：
A, the four sides of air hose is divided into two parts blanking；
B, when the long edge size of rectangular air duct is less than or equal to 1250mm, plank cuts blanking and does not reserve flange；When rectangle wind
When the long edge size of pipe is more than 1250mm, plank cuts blanking and reserves flange；
(2) flange of plank, folding side：
A, the upper and lower side of plank is folded into flange flange respectively；
B, according to air hose size, by the long side folding side of plank：
When long edge size is less than or equal to 1250mm, according to air hose size, the plank long side directly side of folding；
When long edge size is more than 1250mm, vertical flange is first folded, according still further to air hose size by long side folding side；Wherein, vertically
Flange is used as the welding surface of air hose adjacent surface；
(3) angle-steel blanking, reinforced liner are prefabricated：
A, according to the specification of air hose, angle-steel blanking is simultaneously welded into rectangular reinforcement holder；
(4) air hose group to, set reinforced liner：
A, by the stainless steel board group behind one group of flange, folding side to good；
B, the reinforced liner made is sleeved on group on good stainless steel board group outer wall；
(5) air hose longitudinal measure is molded；
(6) several section air hose transverse welds；
(7) reinforcement of weld holder：The Zinc-coated angle steel reinforced liner packaged is moved into fixed reinforcing position and is welded with air hose
It connects.
3. the production method of clean air duct according to claim 2, it is characterised in that：In step (2), a, plank up and down
End folds the flange flange of 10-20mm respectively；B, when long edge size is more than 1250mm, the vertical flange width folded is 10-
20mm。
4. the production method of clean air duct according to claim 2, it is characterised in that：In step (3), when air hose long side ruler
It is very little between 1250-2500mm when, reinforce one of reinforced liner in every the intermediate of section air hose pipeline section；
When air hose long edge size is more than 2500mm, one of reinforced liner is reinforced among every section air hose pipeline section, and wind is saved two
Add one of flange frame at pipe docking.
5. the production method of clean air duct according to claim 2, it is characterised in that：In step (5), when long edge size is small
When 1250mm, the joint form of air hose longitudinal measure is angle seam；When long edge size is more than 1250mm, air hose is longitudinal
The joint form of welding is overlap joint angle seam.
6. a kind of installation method of clean air duct described in claim 1, which is characterized in that include the following steps：
(1) branch in suppot hanger of duct, hanger installation：Distinguish fixed 2 Zinc-coated angle steels in vertical shaft top；Zinc-coated angle steel lower end point
It Gu Lian not a sunpender；The both ends of crossbeam are fixedly arranged on to the lower end of sunpender respectively；
(2) vertical shaft air hose lifts：The air hose made is lifted to each layer successively；
(3) enhance holder, fixing bracket installation：The enhancing holder, fixing bracket are fixedly arranged on support floor and are set with respectively
In air hose outer wall；The reinforced liner is welded on fixing bracket；
(4) fire resisting damper is installed；
(5) plenum chamber is installed；
(6) drainpipe is installed：In drainpipe of the bottom duct installation with water seal resistance of setting, and lead to advantageous discharge position
It sets；
(7) acid wash passivation：It first degreases, welding slag and splash, then uses acid wash passivation cream acid wash passivation, then rinsed with clear water
Totally；
(8) finished product protection；
(9) air hose and equipment are adiabatic：Heat preservation construction is carried out to horizontal mist extractor air hose.
7. the installation method of clean air duct according to claim 6, which is characterized in that the sunpender in step (1) is using logical
Lead screw makes；Crossbeam is made of Zinc-coated angle steel or galvanizing bath steel.
8. the installation method of clean air duct according to claim 6, which is characterized in that the enhancing holder packet in step (3)
Include the flange frame being set on rectangular air duct and two channel steels；The channel steel is parallel to be fixedly arranged on floor, and the flange frame is fixed
In on channel steel, and it is set in rectangular air duct outer wall.
9. the installation method of clean air duct according to claim 6, which is characterized in that the fixing bracket packet in step (3)
Include the rectangular frame being set on air hose and several supporting rods；The supporting rod is fixed on by expansion bolt on floor；Institute
State the upper end that rectangular frame is fixedly arranged on supporting rod；The reinforced liner being set on air hose is welded on rectangular frame.
10. the installation method of clean air duct according to claim 6, which is characterized in that in step (9)：Using 50mm thickness
Unit weight 48Kg/m3Centrifugally glass-wool as air hose thermal insulation material.
Priority Applications (1)
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Cited By (6)
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| CN111502184A (en) * | 2020-04-08 | 2020-08-07 | 中天建设集团有限公司 | Reinforcing and supporting device for civil air shaft lining common-plate flange air pipe and construction method thereof |
| CN112161117A (en) * | 2020-09-23 | 2021-01-01 | 中国五冶集团有限公司 | Fireproof air pipe structure and construction method |
| CN112743295A (en) * | 2020-12-17 | 2021-05-04 | 广州市机电安装有限公司 | Mechanized manufacturing method of air pipe and angle steel flange |
| CN114234422A (en) * | 2021-12-23 | 2022-03-25 | 中铁一局集团电务工程有限公司 | Air duct construction process |
| CN115012614A (en) * | 2022-06-15 | 2022-09-06 | 中国五冶集团有限公司 | Vertical exhaust pipe installation method |
| CN115365469A (en) * | 2022-08-03 | 2022-11-22 | 首钢京唐钢铁联合有限责任公司 | Rectangular-section thin-wall air duct with stable structure and manufacturing method thereof |
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| CN107965624A (en) * | 2017-11-22 | 2018-04-27 | 广州正德工业工程技术有限公司 | Lithium battery film applicator air hose prepares and mounting process |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502184A (en) * | 2020-04-08 | 2020-08-07 | 中天建设集团有限公司 | Reinforcing and supporting device for civil air shaft lining common-plate flange air pipe and construction method thereof |
| CN112161117A (en) * | 2020-09-23 | 2021-01-01 | 中国五冶集团有限公司 | Fireproof air pipe structure and construction method |
| CN112743295A (en) * | 2020-12-17 | 2021-05-04 | 广州市机电安装有限公司 | Mechanized manufacturing method of air pipe and angle steel flange |
| CN114234422A (en) * | 2021-12-23 | 2022-03-25 | 中铁一局集团电务工程有限公司 | Air duct construction process |
| CN115012614A (en) * | 2022-06-15 | 2022-09-06 | 中国五冶集团有限公司 | Vertical exhaust pipe installation method |
| CN115365469A (en) * | 2022-08-03 | 2022-11-22 | 首钢京唐钢铁联合有限责任公司 | Rectangular-section thin-wall air duct with stable structure and manufacturing method thereof |
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