CN109404608A - Water supply thin-walled stainless steel tube cartridge connection construction - Google Patents
Water supply thin-walled stainless steel tube cartridge connection construction Download PDFInfo
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- CN109404608A CN109404608A CN201810376309.9A CN201810376309A CN109404608A CN 109404608 A CN109404608 A CN 109404608A CN 201810376309 A CN201810376309 A CN 201810376309A CN 109404608 A CN109404608 A CN 109404608A
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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
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- Domestic Plumbing Installations (AREA)
Abstract
The invention discloses a kind of water supply thin-walled stainless steel tube cartridge connection constructions, including the following steps: (one) preparation of construction；(2) pipe-hanger support is installed；(3) Pipe installing and connection；(4) pipeline strength and leak test；(5) pipeline cleaning and disinfecting.Stainless steel waterpipe is applied to building water supply, hot water and direct drinking water engineering, have many advantages, such as that light-weight, good, the bright and clean beautiful, long service life of rigidity, the coefficient of friction resistance is small, is not likely to produce secondary pollution, and overall cost is reasonable, the requirement for meeting " novel energy-saving and environmental protection " Residential Buildings of Ministry of Construction's proposition, is ideal green product in pipe material field.
Description
Technical field
The present invention relates to a kind of water supply thin-walled stainless steel tube cartridge connection constructions, belong to building construction technology neck
Domain.
Background technique
Thin-wall stainless steel water pipe be China develop in recent years, high-grade novel building materials, be society promoted product specification
Inexorable trend and the objective demand improved the quality of living of the people.Stainless steel waterpipe is applied to building water supply, hot water
And direct drinking water engineering, with light-weight, good, the bright and clean beautiful, long service life of rigidity, the coefficient of friction resistance is small, it is secondary to be not likely to produce
The advantages that pollution, and overall cost is reasonable, meets the requirement of " novel energy-saving and environmental protection " Residential Buildings of Ministry of Construction's proposition, is pipe
Ideal green product in material field.
Summary of the invention
The technical problems to be solved by the present invention are: providing a kind of water supply thin-walled stainless steel tube cartridge connection construction work
Method.
In order to solve the above technical problems, the technical solution adopted by the present invention is that:
Water supply thin-walled stainless steel tube cartridge connection construction provided by the invention, including the following steps:
(1) preparation of construction
1 is familiar with construction drawing and related professional drawing and on-site actual situations, after Design of Construction Organization, arrangement and method for construction examination & approval
It can construct with after drawing joint examination.The correct reserving hole of civil engineering or service sleeve, suspension and support should be cooperated before installation.
2 installation personnels should be familiar with the performance of stainless steel waterpipe and pipe fitting through professional training, grasp key points for operation.
The appearance and connector of 3 pairs of tubing and pipe fitting should conscientiously be checked that tubing, the pollutant of pipe fitting and impurity should be timely
It removes.
Pipeline actual measurement drawing is drawn before 4 installations and carries out pre-assembled.
5 with getting construction equipment ready.
(2) pipe-hanger support is installed
The support bracket fastened maximum spacing of 1 stainless steel waterpipe can be determined according to following table.The determination of the fixed bracket spacing of hot-water line
Compensation rate etc. should be allowed to determine according to pipeline heat expansion amount, expansion joint, be confirmed by designing institute.Fixed bracket preferably variable diameter, branch,
Interface and the two sides for passing through load bearing wall, floor etc. setting.When hot-water branch goes out pipe well, " L " type should be made in branch pipe in pipe well
Or other measures for carrying out natural compensation.
Support bracket fastened maximum spacing (mm)
2 non-directly buried pipelines accurately must should be buried and be wanted by different tube diameters and requirement setting pipe clamp or hanger, position when installing
Smooth, pipe clamp and tube contacts should be close, but must not damage pipe surface.
3 for nominal diameter be not more than 25mm Pipe installing when, plastic pipe clip can be used.Using Metal pipe strap or hanger
When, it should prevent pipeline from directly contacting with metal fastener between pipeline using soft object dottle pins such as plastic tape or rubber.
4 should be fixed at hydrant and water distribution point using Metal pipe strap or hanger, and pipe clamp or hanger are preferably arranged in away from accessory
At 40~80mm, and installing pepe support should the progress before pipe fitting card is pressed.
(3) Pipe installing and connection
1 points for attention
(1) stainless steel tube water pipe light and shade is applied mountable.When pipeline surface, it should be pacified after civil engineering is whitewashed
Dress.Before installation, whether the position of review reserving hole first is correct.
(2) when the embedding wall of pipeline secretly applies, Ying Peihe civil engineering fluting, preformed hole.The size of reserving hole 50- preferably big compared with pipe outside diameter
100mm.Before fluting, pipeline rout and the line of rabbet joint need to be clearly marked in metope, be slotted with cutting machine.Pipeline bottom edge line traffic control is every
The layer above 300mm of structural elevation is advisable, and groove depth is preferably that outer diameter tube adds 20mm, and width is preferably that outer diameter tube adds 40-50mm,
Layer covering can be painted and metope is not in that cracking is advisable.
(3) when secretly applying in pipeline coagulation soil plate face, protective layer should be stopped, and laid as far as possible along beam side and fixed.?
All finish cement mortar surface it is levelling after with paint indicate pipeline location, to prevent piping failure.
(4) pipeline through-flooring, it is through walls when steel sleeve should be set.It is mounted on floor inner sleeve, top should be higher by ornamentally
Face 20mm；The casing being mounted in toilet and kitchen, top should be higher by decorative ground 50mm, bottom and soffit phase
It is flat；Its both ends of casing being mounted in wall are equal with facing.Gap is using fire-retardant close across the casing of floor and pipeline
Real material and waterproofing unction tamp, and end face is smooth.
(5) when non-direct-burried (in piping shaft, furred ceiling, after decorative panel etc.) lays and crosses expansion joint, subsiding crack, it is necessary to consider pipe
Road is flexible.Natural compensation is carried out using L-type, Z-type pipeline section as far as possible first, secondly, using compensator or using fixed bracket.Pipe
Road well is blocked every 1-2 layers using fire proofing material.
(6) when Pipe installing, must not there are axial bending and a distortion, when through walls or floor must not be forced to correct.When with it is other
When pipeline is parallel, guard space should be stayed by design requirement, if clear distance is not preferably less than 100mm when design no standard.Work as pipeline
When parallel, stainless steel waterpipe is preferably located at the inside of coating steel pipe in pipe trench.
(7) hot water supply pipe should utilize the curved compensation thermal expansion of nature as far as possible, and straightway is too long should to be arranged compensator.Compensation
Type formula, specification, position should meet design requirement, and be pre-stretched by pertinent regulations.
2 stainless steel waterpipes are connect using cartridge connection mode with pipe fitting.Card pressure tool is provided dedicated by manufacturer
Mating card pressure tool.
Card pressure connection should follow these steps to carry out:
1. disconnected pipe: the dedicated pipe cutting machine of pipe or casing knife are cut off according to construction size, and the cut surface of pipe should be with pipe
Central axis, tube end and outer surface are answered smooth, cleaning, are cut without greasy dirt in order to avoid burr stabs sealing ring
Pipe end collar extension burr and chip are removed with the dedicated file of stainless steel or dedicated flash removed device after cutting.
2. setting-out: one week marking of mark line is drawn in the end of pipe using dedicated scriber, to guarantee pipe insertion foot
Enough length, avoids falling off.
3. intubation: pipe being inserted into clamp-press type pipe as the crow flies and confirm the intubating length of pipe.Intubating length should meet
The regulation of following table.It should confirm whether O-ring seal is installed really in correct position when insertion, when installation forbids using profit
Lubricating oil.Skew should be noted that must not in pipe insertion, in case O-ring seal hurts or falls off and cause leak.After insertion, it should confirm
Distance of the drawn mark line away from end on pipe, nominal diameter are 3mm in 10-25mm；Nominal diameter is in 32-50mm
5mm。
Pipe intubating length a reference value (mm)
| Nominal diameter (mm) | 10 | 15 | 20 | 25 | 32 | 40 | 50 |
| Intubating length a reference value | 18 | 21 | 24 | 24 | 39 | 47 | 52 |
4. card pressure: the annular convex that the annular recessed portion of card pressure tool jaw is provided with rubber ring with pipe fitting end is close to,
The jaw of tool should be with the perpendicular shape in pipe axle center.After starting operation, concave part should sting tight pipe fitting, until generating slight vibration.
If connect with turn threads connector, after answering first locking screw, then above-mentioned card pressure is carried out.
5. measurement: after card pressure connection, whether in place with the dedicated hexagonal gauge confirmation card nose bar cun of various specifications, at card pressure
Hexagonal gauge can be caught in completely as qualification.
The connection of 3 stainless steel waterpipes and metal tube or metal fittings generallys use turning with metal insert for producer's offer
It changes transition piece, then is directly connected to using screw thread and flanged joint.Threaded connection is applicable in small-bore (within DN50), and flange is applicable in
In heavy caliber (50-100mm), and it is useful in the connecting portion with equipment, is likely to require the field of disassembly in water meter and valve etc.
Suitable installation loose joint.
(4) pipeline strength and leak test
1 must carry out before surface layer is poured and smashes or block in concealed installation and embedded pipeline, work pressure test, reach pressure testing requirement and lead to
After crossing concealment acceptance, civil engineering can carry out pouring smashing or blocking.
2 hidden pipelines and water supply system must carry out intensity and leak test.Cold water pipe test pressure should be pipeline system
1.5 times of operating pressure of uniting, but cannot be less than 0.6Mpa；Hot-water line test should be 2.0 times of pipe-line system pressure, but must not
Greater than 1.6Mpa.Pipe-line system observes 10min under test pressure, and pressure drop should not exceed 0.02Mpa, then presses in work
Power is checked, no seepage and no leakage is answered.
3 pipe insulations: hot water pipeline installs, and pipe insulation is carried out after pressure testing is qualified, and thermal insulation material presses design requirement
It is selected.Intensity, bulk density, thermal coefficient, specification and the thermal insulation of thermal insulation material should meet design requirement and construction rule
The regulation of model.Thermal insulation material enters scene, and must not to drench with rain or be stored in moist place insulation layer surface smooth, and it is reasonable to take stubble, envelope
Mouth is tight, no hollowing and loosening.
Pipeline and heat preservation install, if pipeline can should be isolated by the breakage in installation of other process；If pipe
Road can be polluted by next procedure, should be wound protection using plastic foil in pipe outer wall or pipeline is isolated, prevent pipeline
Pollution.After all process steps, removable protective layer, and hygienic cleaning is carried out to the pipe shell for having pollution.
(5) pipeline cleaning and disinfecting
For Drinking Water pipeline after pressure testing is qualified, pipeline should preferably use 25%~32% bleaching powder to disappear after pressure testing is qualified
Venom fills pipeline and carries out disinfection.It should stand in the duct for 24 hours, after emptying, then with drinking water flushing pipe, water quality meets drink
Water supply standard can use.
This engineering method feature:
Mounting means light and shade is applied.Easy for installation, reliable, connection type uses cartridge connection, destroys in no external force
And reliable ne-leakage is connected under the conditions of normal working range.
The scope of application:
This engineering method is suitable for all kinds of civil buildings operating pressures and is not more than 1.6MPa, and caliber is between DN15~DN100, work
Make life cold and hot water supply system of the water temperature not less than 0 DEG C and not higher than 110 DEG C.
Technological principle:
The installation of thin-wall stainless steel water pipe uses stainless steel clamp-press type pipe, and port part ring-type U-lag is provided with O-shaped sealing
Stainless steel waterpipe is inserted into pipe port when installation by circle, is made U-lag protrusion undergauge with personality card pressure tool, is made water pipe, pipe
Part socket joint position card is pressed into hexagon, so that compresses seal is to guarantee enough sealing performances and bonding strength.
Beneficial effects of the present invention:
1 stainless steel inside pipe wall non flouling behaviour, molecular structure stabilized will not discharge harmful because of environment, the variation of temperature
Substance does not have peculiar smell generation in drinking water and water pipe application, avoids secondary pollution of the supplying pipe to water, be
People's health provides guarantee.
2 stainless steel pipes are light-weight, and advanced card pressure technology is used when installation, shortens water pipe set-up time, no complexity
Mantle fiber operation, welding construction, pipe fitting connect moment complete, saved working hour, reduced construction cost.
Various losses are reduced to by the long service life of 3 stainless steel pipes in the installation and use process of building
The limit reduces social resources waste.
4 stainless steel pipes lose in validity period without maintenance, without investment supplying pipe loss again, replace without environment again
Loss, the non-maintaining and cost that updates is close to zero.
Stainless steel waterpipe is applied to building water supply, hot water and direct drinking water engineering, has light-weight, rigid good, bright and clean bright
Beautiful, long service life, the coefficient of friction resistance are small, are not likely to produce the advantages that secondary pollution, and overall cost is reasonable, meet the Ministry of Construction and mention
The requirement of " novel energy-saving and environmental protection " Residential Buildings out, is ideal green product in pipe material field.
Specific embodiment
Embodiment 1
Water supply thin-walled stainless steel tube cartridge connection construction provided in this embodiment, including the following steps:
(1) preparation of construction
1 is familiar with construction drawing and related professional drawing and on-site actual situations, after Design of Construction Organization, arrangement and method for construction examination & approval
It can construct with after drawing joint examination.The correct reserving hole of civil engineering or service sleeve, suspension and support should be cooperated before installation.
2 installation personnels should be familiar with the performance of stainless steel waterpipe and pipe fitting through professional training, grasp key points for operation.
The appearance and connector of 3 pairs of tubing and pipe fitting should conscientiously be checked that tubing, the pollutant of pipe fitting and impurity should be timely
It removes.
Pipeline actual measurement drawing is drawn before 4 installations and carries out pre-assembled.
5 with getting construction equipment ready.
(2) pipe-hanger support is installed
The support bracket fastened maximum spacing of 1 stainless steel waterpipe can be determined according to following table.The determination of the fixed bracket spacing of hot-water line
Compensation rate etc. should be allowed to determine according to pipeline heat expansion amount, expansion joint, be confirmed by designing institute.Fixed bracket preferably variable diameter, branch,
Interface and the two sides for passing through load bearing wall, floor etc. setting.When hot-water branch goes out pipe well, " L " type should be made in branch pipe in pipe well
Or other measures for carrying out natural compensation.
Support bracket fastened maximum spacing (mm)
2 non-directly buried pipelines accurately must should be buried and be wanted by different tube diameters and requirement setting pipe clamp or hanger, position when installing
Smooth, pipe clamp and tube contacts should be close, but must not damage pipe surface.
3 for nominal diameter be not more than 25mm Pipe installing when, plastic pipe clip can be used.Using Metal pipe strap or hanger
When, it should prevent pipeline from directly contacting with metal fastener between pipeline using soft object dottle pins such as plastic tape or rubber.
4 should be fixed at hydrant and water distribution point using Metal pipe strap or hanger, and pipe clamp or hanger are preferably arranged in away from accessory
At 40~80mm, and installing pepe support should the progress before pipe fitting card is pressed.
(3) Pipe installing and connection
1 points for attention
(1) stainless steel tube water pipe light and shade is applied mountable.When pipeline surface, it should be pacified after civil engineering is whitewashed
Dress.Before installation, whether the position of review reserving hole first is correct.
(2) when the embedding wall of pipeline secretly applies, Ying Peihe civil engineering fluting, preformed hole.The size of reserving hole 50- preferably big compared with pipe outside diameter
100mm.Before fluting, pipeline rout and the line of rabbet joint need to be clearly marked in metope, be slotted with cutting machine.Pipeline bottom edge line traffic control is every
The layer above 300mm of structural elevation is advisable, and groove depth is preferably that outer diameter tube adds 20mm, and width is preferably that outer diameter tube adds 40-50mm,
Layer covering can be painted and metope is not in that cracking is advisable.
(3) when secretly applying in pipeline coagulation soil plate face, protective layer should be stopped, and laid as far as possible along beam side and fixed.?
All finish cement mortar surface it is levelling after with paint indicate pipeline location, to prevent piping failure.
(4) pipeline through-flooring, it is through walls when steel sleeve should be set.It is mounted on floor inner sleeve, top should be higher by ornamentally
Face 20mm；The casing being mounted in toilet and kitchen, top should be higher by decorative ground 50mm, bottom and soffit phase
It is flat；Its both ends of casing being mounted in wall are equal with facing.Gap is using fire-retardant close across the casing of floor and pipeline
Real material and waterproofing unction tamp, and end face is smooth.
(5) when non-direct-burried (in piping shaft, furred ceiling, after decorative panel etc.) lays and crosses expansion joint, subsiding crack, it is necessary to consider pipe
Road is flexible.Natural compensation is carried out using L-type, Z-type pipeline section as far as possible first, secondly, using compensator or using fixed bracket.Pipe
Road well is blocked every 1-2 layers using fire proofing material.
(6) when Pipe installing, must not there are axial bending and a distortion, when through walls or floor must not be forced to correct.When with it is other
When pipeline is parallel, guard space should be stayed by design requirement, if clear distance is not preferably less than 100mm when design no standard.Work as pipeline
When parallel, stainless steel waterpipe is preferably located at the inside of coating steel pipe in pipe trench.
(7) hot water supply pipe should utilize the curved compensation thermal expansion of nature as far as possible, and straightway is too long should to be arranged compensator.Compensation
Type formula, specification, position should meet design requirement, and be pre-stretched by pertinent regulations.
2 stainless steel waterpipes are connect using cartridge connection mode with pipe fitting.Card pressure tool is provided dedicated by manufacturer
Mating card pressure tool.
Card pressure connection should follow these steps to carry out:
1. disconnected pipe: the dedicated pipe cutting machine of pipe or casing knife are cut off according to construction size, and the cut surface of pipe should be with pipe
Central axis, tube end and outer surface are answered smooth, cleaning, are cut without greasy dirt in order to avoid burr stabs sealing ring
Pipe end collar extension burr and chip are removed with the dedicated file of stainless steel or dedicated flash removed device after cutting.
2. setting-out: one week marking of mark line is drawn in the end of pipe using dedicated scriber, to guarantee pipe insertion foot
Enough length, avoids falling off.
3. intubation: pipe being inserted into clamp-press type pipe as the crow flies and confirm the intubating length of pipe.Intubating length should meet
The regulation of following table.It should confirm whether O-ring seal is installed really in correct position when insertion, when installation forbids using profit
Lubricating oil.Skew should be noted that must not in pipe insertion, in case O-ring seal hurts or falls off and cause leak.After insertion, it should confirm
Distance of the drawn mark line away from end on pipe, nominal diameter are 3mm in 10-25mm；Nominal diameter is in 32-50mm
5mm。
Pipe intubating length a reference value (mm)
| Nominal diameter (mm) | 10 | 15 | 20 | 25 | 32 | 40 | 50 |
| Intubating length a reference value | 18 | 21 | 24 | 24 | 39 | 47 | 52 |
4. card pressure: the annular convex that the annular recessed portion of card pressure tool jaw is provided with rubber ring with pipe fitting end is close to,
The jaw of tool should be with the perpendicular shape in pipe axle center.After starting operation, concave part should sting tight pipe fitting, until generating slight vibration.
If connect with turn threads connector, after answering first locking screw, then above-mentioned card pressure is carried out.
5. measurement: after card pressure connection, whether in place with the dedicated hexagonal gauge confirmation card nose bar cun of various specifications, at card pressure
Hexagonal gauge can be caught in completely as qualification.
The connection of 3 stainless steel waterpipes and metal tube or metal fittings generallys use turning with metal insert for producer's offer
It changes transition piece, then is directly connected to using screw thread and flanged joint.Threaded connection is applicable in small-bore (within DN50), and flange is applicable in
In heavy caliber (50-100mm), and it is useful in the connecting portion with equipment, is likely to require the field of disassembly in water meter and valve etc.
Suitable installation loose joint.
(4) pipeline strength and leak test
1 must carry out before surface layer is poured and smashes or block in concealed installation and embedded pipeline, work pressure test, reach pressure testing requirement and lead to
After crossing concealment acceptance, civil engineering can carry out pouring smashing or blocking.
2 hidden pipelines and water supply system must carry out intensity and leak test.Cold water pipe test pressure should be pipeline system
1.5 times of operating pressure of uniting, but cannot be less than 0.6Mpa；Hot-water line test should be 2.0 times of pipe-line system pressure, but must not
Greater than 1.6Mpa.Pipe-line system observes 10min under test pressure, and pressure drop should not exceed 0.02Mpa, then presses in work
Power is checked, no seepage and no leakage is answered.
3 pipe insulations: hot water pipeline installs, and pipe insulation is carried out after pressure testing is qualified, and thermal insulation material presses design requirement
It is selected.Intensity, bulk density, thermal coefficient, specification and the thermal insulation of thermal insulation material should meet design requirement and construction rule
The regulation of model.Thermal insulation material enters scene, and must not to drench with rain or be stored in moist place insulation layer surface smooth, and it is reasonable to take stubble, envelope
Mouth is tight, no hollowing and loosening.
Pipeline and heat preservation install, if pipeline can should be isolated by the breakage in installation of other process；If pipe
Road can be polluted by next procedure, should be wound protection using plastic foil in pipe outer wall or pipeline is isolated, prevent pipeline
Pollution.After all process steps, removable protective layer, and hygienic cleaning is carried out to the pipe shell for having pollution.
(5) pipeline cleaning and disinfecting
For Drinking Water pipeline after pressure testing is qualified, pipeline should preferably use 25%~32% bleaching powder to disappear after pressure testing is qualified
Venom fills pipeline and carries out disinfection.It should stand in the duct for 24 hours, after emptying, then with drinking water flushing pipe, water quality meets drink
Water supply standard can use.
2 concrete engineering example of embodiment
(1) century sunlight city square, place are located at Gaomi City main road Yi An and the street Li Xin intersection southeast corner.
Its construction engineering units is Weifang Rong Xin Home Co., Ltd, and supervisor is the sincere construction consultation and supervision of China, Shandong Province
Co., Ltd, unit in charge of construction are Zhongqi Jiaojian Group Co., Ltd..
The commencement of works date is on May 7th, 2015, and time of accomplishment is on May 7th, 2017.Its construction scale of engineering is
40951.35㎡.This engineering feedwater piping connector is all made of the construction of water supply thin-walled stainless steel tube cartridge connection, and user builds
If, Tenement to the water supply thin-walled stainless steel tube cartridge connection construct it is very satisfied.
The application of this engineering method efficiently solves the technical issues of links in the construction of water supply network connector, is water supply thin-walled
The popularization from now on of stainless steel tube pipe network is laid a good foundation.
Economic benefit of engineering analysis:
This engineering water supply network connector is constructed using water supply thin-walled stainless steel tube cartridge connection, ensure that engineering matter
Amount and construction safety.It 26.18 ten thousand yuan of saving construction cost, saves the duration 15 days.
Social benefit
1 engineering method is convenient, quickly, saves construction cost, reduces the duration.For building a conservation-minded society with important meaning
Justice.
2 are constructed using water supply thin-walled stainless steel tube cartridge connection, reduce labor intensity of workers.
3 are constructed using water supply thin-walled stainless steel tube cartridge connection, qualitative height, easy construction in work progress, pipe
Road is light and interface is tight.There is significant impact to the development of construction industry.
(2) 120,000 tons of feed processings, production project office building, dormitory and workshop are produced per year, place is located at highly dense.
Construction engineering units are Shandong An You Biotechnology Co., Ltd, and supervisor is the remittance project management of Shandong intelligence
Co., Ltd, unit in charge of construction are Zhongqi Jiaojian Group Co., Ltd..
The commencement of works date is on December 25th, 2015, and time of accomplishment is on August 30th, 2016.Its construction scale of engineering is
10456.99㎡.This engineering feedwater piping connector is all made of the construction of water supply thin-walled stainless steel tube cartridge connection, and user builds
If, Tenement to the water supply thin-walled stainless steel tube cartridge connection construct it is very satisfied.
The application of this engineering method efficiently solves the technical issues of links in the construction of water supply network connector, is water supply thin-walled
The popularization from now on of stainless steel tube pipe network is laid a good foundation.
Claims (1)
1. water supply thin-walled stainless steel tube cartridge connection construction, characterized in that it comprises the following steps:
(1) preparation of construction
1 is familiar with construction drawing and related professional drawing and on-site actual situations, after Design of Construction Organization, arrangement and method for construction examination & approval and schemes
It can construct after paper joint examination；The correct reserving hole of civil engineering or service sleeve, suspension and support should be cooperated before installation；
2 installation personnels should be familiar with the performance of stainless steel waterpipe and pipe fitting through professional training, grasp key points for operation；
The appearance and connector of 3 pairs of tubing and pipe fitting should conscientiously be checked that tubing, the pollutant of pipe fitting and impurity should be clear in time
It removes；
Pipeline actual measurement drawing is drawn before 4 installations and carries out pre-assembled；
5 with getting construction equipment ready；
(2) pipe-hanger support is installed
The support bracket fastened maximum spacing of 1 stainless steel waterpipe is determined according to following table；The determination of the fixed bracket spacing of hot-water line is according to pipe
Line heat expansion amount, expansion joint allow compensation rate to determine；Fixed bracket preferably variable diameter, branch, interface and pass through load bearing wall, floor two
Side etc. setting；When hot-water branch goes out pipe well, " L " type should be made in branch pipe in pipe well；
Support bracket fastened maximum spacing (mm)
Water distribution point both ends should set supporting and fixing, and supporting member is not greater than 150mm from water distribution dot center spacing；The turning of pipeline dog-ear
When, turning back, position of the position no more than 500mm should set supporting and fixing；Standpipe should be set up at away from ground (building) 1.6~1.8m of face；
2 non-directly buried pipelines must be by different tube diameters and requirement setting pipe clamp or hanger when installing, and it is accurate that position is answered, embedded to put down
Whole, pipe clamp and tube contacts should be close；
3 for nominal diameter be not more than 25mm Pipe installing when, using plastic pipe clip；When using Metal pipe strap or hanger, answer
Plastic tape or the soft object dottle pin of rubber are used between pipeline；
4 are fixed at hydrant and water distribution point using Metal pipe strap or hanger, and pipe clamp or hanger be preferably arranged in away from accessory 40~
At 80mm, and installing pepe support should the progress before pipe fitting card is pressed；
(3) Pipe installing and connection
1 points for attention
(1) stainless steel tube water pipe light and shade is applied mountable；When pipeline surface, it should be installed after civil engineering is whitewashed；
Before installation, whether the position of review reserving hole first is correct；
(2) when the embedding wall of pipeline secretly applies, Ying Peihe civil engineering fluting, preformed hole；The size of reserving hole 50- preferably big compared with pipe outside diameter
100mm；Before fluting, pipeline rout and the line of rabbet joint need to be clearly marked in metope, be slotted with cutting machine；Pipeline bottom edge line traffic control is at every layer
The above 300mm of structural elevation is advisable, and groove depth is preferably that outer diameter tube adds 20mm, and width is preferably that outer diameter tube adds 40-50mm, can quilt
Rendering layer covers and metope is not in that cracking is advisable；
(3) when secretly applying in pipeline coagulation soil plate face, protective layer should be stopped, and laid as far as possible along beam side and fixed；In whole
Finish cement mortar surface it is levelling after with paint indicate pipeline location, to prevent piping failure；
(4) pipeline through-flooring, it is through walls when steel sleeve should be set；It is mounted on floor inner sleeve, top should be higher by decorative ground
20mm；The casing being mounted in toilet and kitchen, top should be higher by decorative ground 50mm, and bottom is equal with soffit；
Its both ends of casing being mounted in wall are equal with facing；Fire-retardant closely knit material is applied in gap across the casing of floor and pipeline
Material and waterproofing unction tamp, and end face is smooth；
(5) non-directly buried installation and cross expansion joint, subsiding crack when, it is necessary to consider pipeline extension；Nature is carried out using L-type, Z-type pipeline section
Compensation, secondly, using compensator or using fixed bracket；Piping shaft is blocked every 1-2 layers using fire proofing material；
(6) when Pipe installing, must not there are axial bending and a distortion, when through walls or floor must not be forced to correct；When with other pipelines
When parallel, guard space should be stayed by design requirement, if clear distance is not less than 100mm when design no standard；When pipeline is parallel,
Stainless steel waterpipe is preferably located at the inside of coating steel pipe in pipe trench；
(7) hot water supply pipe should utilize the curved compensation thermal expansion of nature as far as possible, and straightway is too long should to be arranged compensator；Compensate type
Formula, specification, position should meet design requirement, and be pre-stretched by pertinent regulations；
2 stainless steel waterpipes are connect using cartridge connection mode with pipe fitting；Card pressure tool is provided dedicated mating by manufacturer
Card pressure tool；
Card pressure connection should follow these steps to carry out:
1. disconnected pipe: the dedicated pipe cutting machine of pipe or casing knife are cut off according to construction size, and the cut surface of pipe should be with tube center
Line is vertical, and tube end and outer surface are answered smooth, cleaning, used after cutting without greasy dirt in order to avoid burr stabs sealing ring
The dedicated file of stainless steel or dedicated flash removed device remove pipe end collar extension burr and chip；
2. setting-out: one week marking of mark line is drawn in the end of pipe using dedicated scriber, to guarantee that pipe is inserted into long enough
Degree, avoids falling off；
3. intubation: pipe being inserted into clamp-press type pipe as the crow flies and confirm the intubating length of pipe；Intubating length should meet following table
Regulation；It should confirm whether O-ring seal is installed really in correct position when insertion, when installation forbids using lubricating oil；
Skew should be noted that must not in pipe insertion, in case O-ring seal hurts or falls off and cause leak；After insertion, it should confirm on pipe
Distance of the drawn mark line away from end, nominal diameter are 3mm in 10-25mm；Nominal diameter is 5mm in 32-50mm；
Pipe intubating length a reference value (mm)
4. card pressure: the annular convex that the annular recessed portion of card pressure tool jaw is provided with rubber ring with pipe fitting end being close to, tool
Jaw should be with the perpendicular shape in pipe axle center；After starting operation, concave part should sting tight pipe fitting, until generating slight vibration；If with
When turn threads connector connects, after answering first locking screw, then above-mentioned card pressure is carried out；
5. measurement: whether in place with the dedicated hexagonal gauge confirmation card nose bar cun of various specifications, complete with energy at card pressure after blocking pressure connection
It is caught in hexagonal gauge entirely as qualification；
The connection of 3 stainless steel waterpipes and metal tube or metal fittings, the switch transition part with metal insert provided using producer,
It is directly connected to and flanged joint using screw thread again；Threaded connection is applicable in small-bore within DN50, and flange is suitable for 50-100mm
Heavy caliber, and be useful in the connecting portion with equipment, work be preferably installed in the occasion that water meter and valve etc. are likely to require disassembly
It connects；
(4) pipeline strength and leak test
1 must carry out in concealed installation and embedded pipeline, work pressure test before surface layer is poured and smashes or block, and reach pressure testing requirement and by hidden
After covering examination, civil engineering can carry out pouring smashing or blocking；
2 hidden pipelines and water supply system must carry out intensity and leak test；Cold water pipe test pressure should be pipe-line system work
1.5 times for making pressure, but cannot be less than 0.6Mpa；Hot-water line test should be 2.0 times of pipe-line system pressure, but be not greater than
1.6Mpa；Pipe-line system observes 10min under test pressure, and pressure drop should not exceed 0.02Mpa, then carries out in operating pressure
It checks, answers no seepage and no leakage；
3 pipe insulations: hot water pipeline installs, and pipe insulation is carried out after pressure testing is qualified, and thermal insulation material is carried out by design requirement
Selection；Intensity, bulk density, thermal coefficient, specification and the thermal insulation of thermal insulation material should meet the rule of design requirement and job specfication
It is fixed；Thermal insulation material enters scene, and must not to drench with rain or be stored in moist place insulation layer surface smooth, takes that stubble is reasonable, and sealing is tight,
Without hollowing and loosening；
Pipeline and heat preservation install, if pipeline can should be isolated by the breakage in installation of other process；If pipeline meeting
It is polluted by next procedure, protection should be wound using plastic foil in pipe outer wall or pipeline is isolated, prevent pipeline from polluting；
After all process steps, removable protective layer, and hygienic cleaning is carried out to the pipe shell for having pollution；
(5) pipeline cleaning and disinfecting
For Drinking Water pipeline after pressure testing is qualified, pipeline should preferably use 25%~32% bleaching powder disinfectant after pressure testing is qualified
Pipeline is filled to carry out disinfection；It should stand in the duct for 24 hours, after emptying, then with drinking water flushing pipe, water quality, which meets, drinks water gauge
Standard can use.
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| CN201810376309.9A CN109404608A (en) | 2018-04-25 | 2018-04-25 | Water supply thin-walled stainless steel tube cartridge connection construction |
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| CN114370529A (en) * | 2022-01-07 | 2022-04-19 | 中铁建设集团机电安装有限公司 | Installation process of air conditioner water pipe |
| CN114427620A (en) * | 2022-01-13 | 2022-05-03 | 北京城建集团有限责任公司 | Pipeline connection method for temporary water use |
| CN115076458A (en) * | 2022-07-07 | 2022-09-20 | 北京城建集团有限责任公司 | Ring-pressing connection construction method for thin-wall stainless steel pipe |
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