CN106195480A - The installation method of book wall stainless steel pipe clip banded penstock part and pipe fitting - Google Patents
The installation method of book wall stainless steel pipe clip banded penstock part and pipe fitting Download PDFInfo
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- CN106195480A CN106195480A CN201610695941.0A CN201610695941A CN106195480A CN 106195480 A CN106195480 A CN 106195480A CN 201610695941 A CN201610695941 A CN 201610695941A CN 106195480 A CN106195480 A CN 106195480A
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Abstract
The installation method of book wall stainless steel pipe clip banded penstock part and pipe fitting.By by the diameter of even steel pipe and hydraulic pressure, according to literary composition provides corresponding 1.5,2.5, table 1,2,3 numerical value of tri-kinds of hydraulic pressure of 4MPa, determine that steel wall thickness selects steel, make vertical flange by flange width flanger；Then, in two root ports load full circle rubber ring, flexible gap E between two flange, is reserved；Full circle clip is finally installed and tightens.The flange clip pipe fitting formed keeps overall dimensions identical with existing slotted tube, and thickness weight greatly reduces, and distributes rationally in thickness of pipe wall and flange size holding table.The improvement product of this flexible joint, meets GB and rower all of test data demand.Thoroughly eliminating and turbulent flow occur after being installed by the thin-wall stainless steel of tradition slot rolling diameter reducing process processing for a long time and dial de-event, and ensure that clip can compensate effectively when expanding with heat and contract with cold, the pull-off probability of pipeline is reduced to zero.Operation is very simple, and cost is lower, and reliability is high.Can be widely used for the sheet-metal duct connection that water supply, combustion gas and fire-fighting use.
Description
(1) technical field: the installation method of book wall stainless steel pipe clip banded penstock part of the present invention and pipe fitting, relates to a kind of book wall
Stainless steel tube interconnection technique.Metal conduit, pipe fitting (F16L).
(2) background technology:
The commonly used GB/T of thin-walled stainless steel tube 8259, the GB/T 8260 that are currently used for water supply, combustion gas and fire-fighting block
Hoop formula pipe fitting connects, and reason is that this clip pipe fitting has flexible and deflects function.Its stroke≤8mm, deflect angle≤± 3 °,
Different depending on different calibers.
Before thin-walled stainless steel tube does not comes out, engineering all uses posted sides pipeline.Clip pipe fitting posted sides pipeline connects
Structure is shown in Fig. 4, wherein: 1m-is connected thick-walled pipe.2m-thick-walled pipe clip.3m-thick-walled pipe rubber ring.Em-posted sides pipeline stretches
Gap.4m-thick-walled pipe port is slotted: δ m-thick-walled pipe groove depth, Wm-thick-walled pipe groove width.
After thin-wall stainless steel occurs, because cost reduces, posted sides pipeline is gradually backed out market.Clip pipe fitting book wall
Pipe connecting structure is shown in Fig. 5, wherein: 1n-is connected light-wall pipe.2n-light-wall pipe clip.3n-light-wall pipe rubber ring.En-thin-walled
Pipeline extension gap.4n-light-wall pipe port is slotted: δ n-light-wall pipe groove depth, Wn-light-wall pipe groove width.
Above-mentioned heavy wall or light-wall pipe port fluting processing mode all use slot rolling diameter reducing process, i.e. with channelling machine by even two
Port of steel pipe rolls, and makes steel pipe undergauge process port fluting 4m and 4n.The groove processed claims slot rolling.
In standard GB/T 5135.11, the size of slot rolling such as table 4 table 4 unit: mm
In the installation standard collective drawings 10S407-2 of thin-walled stainless steel tube and in industry standard CJ/T 156, slot rolling
Size such as table 5 table 5 unit: mm
| DN | 65 | 80 | 90 | 100 | 125 | 150 | 200 | 250 | 300 |
| Slot rolling degree of depth δ n | 2.1 | 2.1 | 2.3 | 2.3 | 2.9 | 2.9 | 2.9 | 3.6 | 4.0 |
| Slot rolling width Wn | 8.74 | 8.74 | 8.74 | 8.74 | 8.74 | 8.74 | 12 | 12 | 12 |
By table 4, table 5 slot rolling size make such as the clip pipe fitting book wall pipe connecting structure of Fig. 5, carrying out clip slot rolling
In construction, just occur in that following problem:
1) even if work water pressure is in the supply channel of 1MPa, this clip pipe fitting book wall pipe connecting structure is the most often sent out
Raw tubing event of pull-off from clip.2) in the supply channel of work water pressure 1.6MPa, due to ovality and the rolling of tubing
The gradient that groove port is formed when rolling, result in this pull-off event and has become necessary event.3) because slot rolling causes pipeline
, always there is turbulent flow in port undergauge during the full-section pipe-flow of water flowing, turbulent flow causes water hammer event, and water hammer causes pipe
The burst hydraulic pressure of 2-4 times is broken out on road, and this extra-high burst hydraulic pressure is only the main cause causing pipeline pull-off.Particularly use
In fire protection pipeline, when electrodynamic valve is opened, when water route is suddenly switched on, pipeline is because water hammer event generates the high pressure of 2.5-10MPa
Water column, often occurs pipeline by the event of pull-off under water jets under high pressure is impacted.In consideration of it, in important engineering, designer
Posted sides pipeline would rather be used, be also unwilling to use structure and the construction technology of thin-walled stainless steel tube slot rolling undergauge.
So, for a long time people always search for solve clip pipe fitting thin-wall stainless steel attachment structure in slot rolling
Other structure outside (indent diameter reducing process) and technique.
(3) summary of the invention:
The installation method of the book wall stainless steel pipe clip banded penstock part that the present invention proposes and pipe fitting, solve existing clip pipe fitting exactly
In thin-wall stainless steel installation, the port undergauge of slot rolling appearance, water flowing full-section pipe-flow process generation turbulent flow, cause water hammer, finally result in
Tubing is the problem of pull-off from clip.
Technical scheme:
The installation method of book wall stainless steel pipe clip banded penstock part, is characterized in that, have the following steps:
1) first by nominal diameter DN and the work water pressure of connected book wall stainless steel tube 1, by number in table 1, table 2 or table 3
Value；Determine steel pipe steel wall thickness t and flange width h；In three tables, numerical value corresponding operating mode respectively is: work water pressure 1.6MPa,
2.5MPa、4MPa；The error of thickness of steel pipe is ± 10%；In DN=25-100mm, the error of flange width h is ± 3%；
In DN=125-300mm, the error of flange width h is ± 5%；Table 1 unit: mm
Table 2 unit: mm
| DN | 25 | 32 | 40 | 50 | 65 | 80 | 90 | 100 | 125 | 150 | 200 | 250 | 300 |
| Steel wall thickness t | 1.8 | 1.8 | 1.8 | 1.8 | 2.3 | 2.3 | 2.3 | 2.3 | 2.9 | 2.9 | 2.9 | 3.6 | 4.0 |
| Flange width h | 5 | 5 | 5 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 10 | 10 |
Table 3 unit: mm
| DN | 25 | 32 | 40 | 50 | 65 | 80 | 90 | 100 | 125 | 150 | 200 | 250 | 300 |
| Steel wall thickness t | 2.0 | 2.0 | 2.0 | 2.5 | 2.5 | 3.0 | 3.0 | 3.0 | 3.5 | 3.5 | 4.0 | 4.5 | 5.0 |
| Flange width h | 5 | 5 | 5 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 10 | 10 |
2) connected two A'Book wall stainless steel tube 1 tubing are selected by the above-mentioned steel wall thickness t determined；By above-mentioned determine turn over
Hem width degree h, at connected two book wall stainless steel tube ports, makes the vertical flange 4 of annulus plate-like of flanger；
3) connected two A'Book wall stainless steel tube ports are inserted in full circle rubber rings 3, and reserve between two flange flexible between
Gap E；Do the two of band connection seat uniform for circumference again and above arcuation clip 2A is enclosed within outside full circle rubber ring, be combined into full circle card
Hoop 2；Finally tighten the adjacent two fastening assemblies 5 connecting seat.
The pipe fitting that the installation method of above-mentioned book wall stainless steel pipe clip banded penstock part is formed, including: full circle clip and Qi Nei
Full circle rubber ring；Full circle clip is done by circumference uniform two and above two ends band connects the arcuation clip of seat and combines, phase
Adjacent two arcuation clips fasten by connecting seat and fastening assembly connection；It is characterized in that
1) connected two A'Book wall stainless steel tube 1 ports are the vertical flange 4 of annulus plate-like；The width h of vertical flange
With in numerical value table 1 in claim 1, table 2 or table 3 numerical value of thickness of steel pipe t and the margin of tolerance；
2) flange clip pipe fitting overall dimensions A, B, C is identical with existing steel pipe fluting clip pipe fitting overall dimensions: A is full circle
The external diameter of clip 2；B is that two be evenly distributed do and ultimate range between the connection seat 2.1 of above arcuation clip 2A；C is full circle
The length of clip 2 X vertically.
The pipe fitting that the installation method of above-mentioned book wall stainless steel pipe clip banded penstock part is formed, described full circle clip 2 thickness Z is desirable
For Zn-2 δ n；The clip 2n thickness of book wall stainless steel tube fluting clip pipe fitting during wherein Zn is existing GB, wherein δ n is existing
The fluting groove depth of book wall stainless steel tube fluting clip pipe fitting in GB.
The method have the benefit that
1) mounting means of clip flange of the present invention and attachment structure, and the ginseng of the optimization that test obtains is calculated by design
Number, the innovative product of thus obtained flexible joint, meet GB and rower all of test data demand.
2) when the overall dimensions of flange clip tube design of the present invention is identical with existing fluting clip pipe fitting, its clip 2
It is substantially reduced compared with thickness Z with GB/T 8259, GB/T 8260, GB 5135.11 and rower CJ/T 156 fluting, reduces out
2 times of groove depth δ n.Clip pipe fitting weight is lighter, and performance is more excellent, makes purposes widely flexible joint.
3) mounting means of the present invention and structure operation are very simple, and cost is lower, and reliability is high.As long as following different water
The tubing flange mounting means of isometrical employing different wall, just ensure that clip can be mended effectively when expanding with heat and contract with cold
Repaying, the pull-off probability of pipeline is reduced to zero.
4) solve for a long time by tradition slot rolling diameter reducing process processing thin-wall stainless steel the turbulent flow that causes of fluting and
Dial de-event.The most this mounting means and structure can be widely used in the sheet-metal duct system that water supply, combustion gas and fire-fighting use, as
The use of the fire protection pipeline described in GB 5135.11.
(4) accompanying drawing explanation
Fig. 1 book of the present invention wall stainless steel pipe clip axial sectional view of banded penstock part (Z-X face).
Fig. 2 is half-twist view (Z-Y face) after A-A section view in Fig. 1.
The fastening assembly 5 arranged along Y-direction can be seen.
Fig. 3 is B-B sectional view (X-Y plane) in Fig. 2.The fastening assembly 5 arranged along Y-direction can be seen.
Fig. 4 existing clip pipe fitting thick-walled pipe attachment structure positive view (Z-X face).
Fig. 5 existing clip pipe fitting thin-wall stainless steel pipe connecting structure positive view (Z-X face).
(5) detailed description of the invention
The present embodiment 1: work water pressure is 1.6MPa, nominal diameter of steel pipe DN=100mm.
The installation method of thin-wall stainless steel pipe clip pipe fitting has the following steps:
1) Fig. 1 is seen, the nominal diameter DN=100mm of connected book wall stainless steel tube 1.Work water pressure is 1.6MPa, by table
1, determine steel pipe steel wall thickness t=2.0mm, error is ± 10%, t=1.9-2.1mm.Flange width h=8mm, error is ±
3%, h=7.76-8.24mm.
2) see Fig. 1, determine that connected two A'Book wall stainless steel tubes 1 are managed by the above-mentioned steel wall thickness t=1.9-2.1mm determined
Material, by the above-mentioned flange width h=7.76-8.24mm determined, makes the vertical flange 4 of annulus plate-like of flanger.
3) see Fig. 1, connected two A'Book wall stainless steel tube 1 ports are inserted in full circle rubber ring 3 from two ends, because of rubber ring
Elastic big, even if port vertical flange external diameter is slightly larger than rubber ring nominal bore diameter, the most easily insert inner chamber.And two reserve between flange
Flexible gap E.See Fig. 2, then two ends band uniform for circumference is connected the two of seat 2.1 do arcuation clip 2A and be enclosed within full circle rubber ring 3
Outward, full circle clip 2 it is combined into.See that Fig. 2, Fig. 3 finally tighten the adjacent two fastening assemblies 5 connecting seat.Fasten assembly by screw rod, spiral shell
Packing rings etc. form, and connecting seat 2.1 has square hole 2.2, and screw rod is tight with spiral through two square holes.
It table 1 is a kind of conventional caliber standard.In order to ensure 1.6Mpa work water pressure, nominal diameter DN=100mm, pipe
Material must assure that wall thickness t=1.9-2.1mm as above.Limit test hydraulic pressure is 2.5 times of working water, i.e. the test water of 4MPa
Pressure.
The pipe fitting that the installation method of the present embodiment 1 above-mentioned clip pipe fitting book wall stainless steel tube is formed is as follows:
1) include assembly: see Fig. 1, have the full circle rubber ring 3 of full circle clip 2 and Qi Nei.See Fig. 2, the present embodiment full circle card
Hoop 2 is done arcuation clip 2A by circumference uniform two and is combined, and often does arcuation clip 2A circumference two ends and is respectively arranged with one and connects seat
2.1.Adjacent two arcuation clip two ends connect seat and fasten assembly 5 connection fastening.Fasten assembly 5 by screw rod, spiral shell packing ring etc.
Composition, connects seat 2.1 and has square hole 2.2 (simultaneously seeing Fig. 3), and screw rod is tight with spiral through two square holes.
2) seeing Fig. 1, connected two A'Book wall stainless steel tube 1 ports are the vertical flange 4 of annulus plate-like.Connected book wall
The nominal diameter DN=100mm of stainless steel tube 1.Being shown in Table 1, work water pressure is 1.6MPa, thickness of steel pipe t=1.9-2.1mm.Flange
Width h=7.76-8.24mm.
3) flange clip pipe fitting overall dimensions A, B, C is identical with existing steel pipe fluting clip pipe fitting overall dimensions.See Fig. 1,
Fig. 2, A are the external diameter of full circle clip 2.B is 2.1 ultimate ranges of connection seat that two be evenly distributed do arcuation clip 2A.See
Fig. 3, C are the length of clip 2 X vertically.Fluting clip pipe fitting overall dimensions is shown in GB GB/T 8259, GB/T 8260, GB
Slot in clip pipe fitting in 5135.11 and rower CJ/T 156.Seeing Fig. 1, the clip 2 thickness Z of this flange clip pipe fitting is taken as Zn-
2δn；Clip 2n thickness (see Fig. 5) of book wall stainless steel tube fluting clip pipe fitting, wherein δ n during wherein Zn is existing above-mentioned GB
Fluting groove depth (see Fig. 5) for book wall stainless steel tube fluting clip pipe fitting.
Embodiment 2 work water pressure is 2.5MPa, nominal diameter of steel pipe DN=100mm.
The installation method of thin-wall stainless steel pipe clip pipe fitting, except following steps, remaining is same as in Example 1:
1) seeing Fig. 1, the nominal diameter DN=100mm of connected book wall stainless steel tube 1, work water pressure is 2.5MPa, is shown in Table 2
Determining steel pipe steel wall thickness t=2.3mm, error is ± 10%, t=2.07-2.53mm.Flange width h=8mm, error is ±
3%, h=7.76-8.24mm.
2) see Fig. 1, select connected two A'Book wall stainless steel tubes 1 by the above-mentioned steel wall thickness t=2.07-2.53mm determined
Tubing, by the above-mentioned flange width h=7.76-8.24mm determined, makes the vertical flange 4 of annulus plate-like of flanger.
Table 2 is t and h that 2.5Mpa determines for work water pressure, in order to ensure 2.5Mpa work water pressure, nominal diameter DN=
100mm, tubing must assure that wall thickness t=2.07-2.53mm as above.Limit test hydraulic pressure is 2.5 times of working water, i.e.
The test hydraulic pressure of 4MPa.
The pipe fitting that the installation method of the present embodiment 2 above-mentioned clip pipe fitting book wall stainless steel tube is formed: except following characteristics, its
Remaining same as in Example 1:
Seeing Fig. 1, connected two A'Book wall stainless steel tube 1 ports are the vertical flange 4 of annulus plate-like.Connected book wall is not
The nominal diameter DN=100mm of rust steel pipe 1, work water pressure is 2.5MPa, by table 2, thickness of steel pipe t=2.07-2.53mm.Flange
Width h=7.76-8.24mm.
Embodiment 3 work water pressure is 4MPa, nominal diameter of steel pipe DN=100mm.
The installation method of thin-wall stainless steel pipe clip pipe fitting, except following steps, remaining is same as in Example 1:
1) Fig. 1 is seen, the nominal diameter DN=100mm of connected book wall stainless steel tube 1.Being shown in Table 3, work water pressure is 4MPa,
Determining steel pipe steel wall thickness t=3mm, error is ± 10%, t=2.7-3.3mm；Flange width h=8mm, error is ± 3%, h
=7.76-8.24mm.
2) see Fig. 1, select connected two A'Book wall stainless steel tubes 1 to manage by the above-mentioned steel wall thickness t=2.7-3.3mm determined
Material, by the flange width h=7.76-8.24mm of above-mentioned selection, makes the vertical flange 4 of annulus plate-like of flanger.
In order to ensure 4Mpa work water pressure, nominal diameter DN=100mm, tubing must assure that wall thickness t=2.7-as above
3.3mm.Limit test hydraulic pressure is 2.5 times of working water, i.e. the test hydraulic pressure of 10MPa.
The pipe fitting that the installation method of the present embodiment 3 above-mentioned clip pipe fitting book wall stainless steel tube is formed: except following characteristics, its
Remaining same as in Example 1:
Seeing Fig. 1, connected two A'Book wall stainless steel tube 1 ports are the vertical flange 4 of annulus plate-like.Connected book wall is not
The nominal diameter DN=100mm of rust steel pipe 1.Being shown in Table 3, work water pressure is 4MPa, thickness of steel pipe t=2.7-3.3mm.This is conventional
Middle pressure pipeline wall thickness standard.Flange width h=7.76-8.24mm.
Claims (3)
1. the installation method of book wall stainless steel pipe clip banded penstock part, is characterized in that, have the following steps:
1) first by nominal diameter DN and the work water pressure of connected book wall stainless steel tube (1), by number in table 1, table 2 or table 3
Value；Determine steel pipe steel wall thickness t and flange width h；In three tables, numerical value corresponding operating mode respectively is: work water pressure 1.6MPa,
2.5MPa、4MPa；The error of thickness of steel pipe is ± 10%；In DN=25-100mm, the error of flange width h is ± 3%；
In DN=125-300mm, the error of flange width h is ± 5%；
Table 1 unit: mm
Table 2 unit: mm
Table 3 unit: mm
2) connected two A'Book wall stainless steel tube tubing are selected by the above-mentioned steel wall thickness t determined；By the above-mentioned flange width determined
Degree h, at connected two book wall stainless steel tube ports, makes the vertical flange (4) of annulus plate-like of flanger；
3) connected two A'Book wall stainless steel tube ports are inserted in full circle rubber ring (3), and between two flange, reserve flexible gap
E；Do the two of band connection seat uniform for circumference again and above arcuation clip (2A) is enclosed within outside full circle rubber ring, be combined into full circle card
Hoop (2)；Finally tighten the adjacent two fastening assemblies (5) connecting seat.
2. the pipe fitting that the installation method of book wall stainless steel pipe clip banded penstock part as described in claim 1 is formed, including: full circle clip
With its interior full circle rubber ring；Full circle clip is done by circumference uniform two and above two ends band connects the arcuation clip combination of seat
Forming, adjacent two arcuation clips are by connecting seat and fastening assembly connection fastening；It is characterized in that
1) connected two A'Book wall stainless steel tube ports are the vertical flange of annulus plate-like；The width h of vertical flange and steel pipe
In the numerical value of wall thickness t table 1 in claim 1, table 2 or table 3 numerical value and the margin of tolerance；
2) flange clip pipe fitting overall dimensions A, B, C is identical with existing steel pipe fluting clip pipe fitting overall dimensions: A is full circle clip
(2) external diameter；B is that two be evenly distributed do and ultimate range between the connection seat (2.1) of above arcuation clip (2A)；C is whole
The length of circle clip X vertically.
3. the pipe fitting that the installation method of book wall stainless steel pipe clip banded penstock part as described in claim 2 is formed, is characterized in that described
Full circle clip thickness Z is taken as Zn-2 δ n；The clip (2n) of book wall stainless steel tube fluting clip pipe fitting during wherein Zn is existing GB
Thickness, the fluting groove depth of book wall stainless steel tube fluting clip pipe fitting during wherein δ n is existing GB.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610695941.0A CN106195480A (en) | 2016-08-19 | 2016-08-19 | The installation method of book wall stainless steel pipe clip banded penstock part and pipe fitting |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610695941.0A CN106195480A (en) | 2016-08-19 | 2016-08-19 | The installation method of book wall stainless steel pipe clip banded penstock part and pipe fitting |
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| CN201610695941.0A Pending CN106195480A (en) | 2016-08-19 | 2016-08-19 | The installation method of book wall stainless steel pipe clip banded penstock part and pipe fitting |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486532A (en) * | 2019-09-06 | 2019-11-22 | 王福州 | A kind of no-dig technique pipeline rehabilitation construction technology |
| CN110778814B (en) * | 2019-10-30 | 2021-05-04 | 北京机械设备研究所 | Nondestructive cleaning connection device for aerospace hydraulic pipeline and cleaning method for hydraulic pipeline |
| WO2022166601A1 (en) * | 2021-02-04 | 2022-08-11 | 天纳克（苏州）排放***有限公司 | Exhaust gas post-treatment package |
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| CN201359140Y (en) * | 2009-01-22 | 2009-12-09 | 孙海华 | Metal thin walled tube |
| KR20120020715A (en) * | 2010-08-31 | 2012-03-08 | 이정선 | Frame for connecting pipe |
| CN103115206A (en) * | 2013-03-05 | 2013-05-22 | 葛文宇 | Female-male buckle hoop connection method for pipeline |
| CN203176581U (en) * | 2013-01-21 | 2013-09-04 | 成都贝根管道有限责任公司 | Lining plastic compound steel pipe |
| DE102014100861A1 (en) * | 2014-01-27 | 2015-07-30 | Elringklinger Ag | pipe connection |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6030005A (en) * | 1996-12-20 | 2000-02-29 | Lindab Ab | Method and device for coupling pipes |
| CN201359140Y (en) * | 2009-01-22 | 2009-12-09 | 孙海华 | Metal thin walled tube |
| KR20120020715A (en) * | 2010-08-31 | 2012-03-08 | 이정선 | Frame for connecting pipe |
| CN203176581U (en) * | 2013-01-21 | 2013-09-04 | 成都贝根管道有限责任公司 | Lining plastic compound steel pipe |
| CN103115206A (en) * | 2013-03-05 | 2013-05-22 | 葛文宇 | Female-male buckle hoop connection method for pipeline |
| DE102014100861A1 (en) * | 2014-01-27 | 2015-07-30 | Elringklinger Ag | pipe connection |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110486532A (en) * | 2019-09-06 | 2019-11-22 | 王福州 | A kind of no-dig technique pipeline rehabilitation construction technology |
| CN110778814B (en) * | 2019-10-30 | 2021-05-04 | 北京机械设备研究所 | Nondestructive cleaning connection device for aerospace hydraulic pipeline and cleaning method for hydraulic pipeline |
| WO2022166601A1 (en) * | 2021-02-04 | 2022-08-11 | 天纳克（苏州）排放***有限公司 | Exhaust gas post-treatment package |
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Application publication date: 20161207 |