CN108050322A - A kind of Double-face flange pipe connecting method - Google Patents
A kind of Double-face flange pipe connecting method Download PDFInfo
- Publication number
- CN108050322A CN108050322A CN201711305819.9A CN201711305819A CN108050322A CN 108050322 A CN108050322 A CN 108050322A CN 201711305819 A CN201711305819 A CN 201711305819A CN 108050322 A CN108050322 A CN 108050322A
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- CN
- China
- Prior art keywords
- flange
- double
- face
- pipe
- vessel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
-
- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
Abstract
The present invention provides a kind of Double-face flange pipe connecting methods, comprise the following steps：Connect vessel flange on equipment nozzle, connecting pipe flange on pipeline nozzle tentatively aligns equipment and pipeline, and causes preset clearance between the two；Spacing between measuring apparatus flange and the corresponding multiple quadrantal points of pipe flange；According to the matching requirements vehicle Double-face flange of the spacing and vessel flange and pipe flange measured；Distinguish inscription rubbing using template and the bolt hole of Double-face flange is processed according to template；According to equipment internal diameter and the internal diameter of pipeline, the center circle of Double-face flange is processed；Double-face flange is placed between pipe flange and vessel flange and is aligned, the bolt of installation Double-face flange both sides.Using the Double-face flange pipe connecting method of technical solution of the present invention, which can reduce the labor intensity of worker, and construction cost is low, and cause pipeline and equipment stable connection, and pipeline accuracy of alignment is high.
Description
Technical field
The present invention relates to technical field of pipeline connection, and in particular to a kind of Double-face flange pipe connecting method.
Background technology
Modern ships are the method manufactures carried, spliced in building berth with modular form by segmentation or block, are typically pipeline
Ssection fitting-out complete, equipment install on block or building berth on install, after ship body folding completion equipment and pipeline connection；By
There is strict demand in contraposition, the connection of equipment nozzle flange has strict demand in, and equipment nozzle cannot be right by force with pipe flange
In to avoid vessel flange by external force.
In the prior art, connection equipment pipe is needing aboard ship to carry out school pipe, and equipment pipe school pipe process is：Ship colonel
It manages → moving back to workshop to polish, weld, be surface-treated → to move back on ship and install, when the pipe diameter of required connection is very big greatly, have
A little internal diameter of the pipeline can reach more than 300mm, and conduit volume is larger and quality is very heavy, and ship narrow space, passage are narrow, and more
Work post construction operation, which intersects, to carry out, so that the school pipe process of pipeline becomes extremely difficult, and the labor intensity of worker is very
Height, the connection construction of large diameter pipeline is of high cost, operating difficulties and cause pipeline connect after accuracy of alignment it is not high.It is necessary to send out
A kind of bright pipe and equipment connection method realize the high-precision centering installation of pipeline and equipment, avoid vessel flange because right by force
Middle stress generates displacement, mitigates the labor intensity of large diameter pipeline centering, and the method that construction cost is low.
The content of the invention
It is an object of the present invention to provide a kind of Double-face flange pipe connecting method, the Double-face flange pipe connecting methods
Easy construction can reduce the labor intensity of worker, and construction cost is low, and cause pipeline and equipment stable connection, pipeline centering
Precision is high.
Based on this, the present invention proposes a kind of Double-face flange pipe connecting method, comprises the following steps：
1) vessel flange is connected on equipment nozzle, connecting pipe flange on pipeline nozzle, to the equipment and the pipe
Road is tentatively aligned so that the vessel flange and pipe flange center alignment, and cause preset clearance between the two；
2) spacing between the vessel flange and the corresponding multiple quadrantal points of the pipe flange is measured；
3) according to the spacing and the matching requirements vehicle Double-surfaces Method of the vessel flange and the pipe flange measured
It is blue；
4) using template, inscription rubbing goes out the bolt hole of the vessel flange and the pipe flange respectively, and according to the template
The both sides of the Double-face flange are processed to obtain corresponding bolt hole respectively；
5) according to the equipment internal diameter and the internal diameter of the pipeline, the center circle of the Double-face flange is processed；
6) Double-face flange is placed between the pipe flange and the vessel flange and is aligned, institute is installed
State the bolt of Double-face flange both sides.
Preferably, specific operation process is in step 1)：
The mobile equipment and the pipeline so that the vessel flange is parallel with the end face of the pipe flange, adjusts
Gap between the vessel flange and the pipe flange is 50mm-100mm.
Preferably, the specific operation process in step 2) is：
Using vernier caliper measurement go out corresponding four quadrantal points between the vessel flange and the pipe flange it
Between spacing, four quadrantal points are uniformly distributed on same circumference.
Preferably, it is provided with flange gasket between the Double-face flange and the vessel flange and the pipe flange
Piece, when making the Double-face flange into driving in step 3), the thickness of the Double-face flange need to be with reference to the thickness of the flange gasket
Degree and the spacing of measurement are calculated.
Preferably, the flange gasket is graphite corrugated serrated compound gasket.
Preferably, the specific operation process in step 4) is：
Using Paper Formwork, the inscription rubbing on the pipe flange and the vessel flange goes out the position of the bolt hole respectively
And size, mark is used on the bolt hole of connection in template, according to the Paper Formwork in the Double-face flange both sides
Match somebody with somebody auger shell hole and tapping respectively so that the Double-face flange both sides obtain the bolt hole for mating connection.
Preferably, in step 5) when processing the center circle of the Double-face flange, choose the equipment internal diameter and
Smaller internal diameter is as the center diameter of a circle in the internal diameter of the pipeline.
Preferably, after the completion of step 6) assembling, the leakproofness of the Double-face flange is detected, if finding close
Envelope property is unsatisfactory for requirement and then the Double-face flange is reprocessed.
Implement the embodiment of the present invention, have the advantages that：
1st, it is attached before vessel flange and pipe flange by Double-face flange, Double-face flange thickness is to survey to wait to connect
Distance between pipe flange and vessel flange, when the flange deviation of vessel flange and pipe flange is larger, by Double-surfaces Method
Blue processing can ensure pipe flange and vessel flange to connect leakproofness good, thus vessel flange is not stressed or pulling force, and then
So that connect stable structure after equipment is connected with pipeline；The bolt hole of two end faces of Double-face flange is each independent, therefore the company for the treatment of
Connecing the bolt hole of pipe flange and vessel flange can stagger, so that work progress is more convenient, reduce labor intensity；It is logical
The connection method of Double-face flange is crossed, the equipment nozzle and pipeline of different-diameter can be connected, so that the connection of pipeline is applicable in
Property is wider；When the pipe diameter of connection is larger, this method whole process only need to move and process Double-face flange, without right
Very large equipment pipe carries out school pipe operation, can reduce labor intensity, reduces construction cost and improves work efficiency.
2nd, the gap between adjustment equipment flange and pipe flange is 50mm-100mm, can be made using above-mentioned gap
It is more convenient to obtain next construction, and so that mobile equipment and pipe operations are simple；It can to move when above-mentioned gap is too small
The operation process of dynamic equipment and pipeline becomes difficult, and processed complex and the increase of Double-face flange are then caused using excessive gap
The cost of Double-face flange, therefore use above-mentioned gap as preferred scheme.
3rd, flange gasket is provided between Double-face flange and vessel flange and pipe flange, by setting flange gasket can be with
Ensure the leakproofness of Double-face flange.
4th, using Paper Formwork, the inscription rubbing on pipe flange and vessel flange goes out position and the size of bolt hole, papery respectively
The inscription rubbing of template works well.
When the 5th, processing the center circle of Double-face flange, smaller internal diameter is as center circle in selected equipment internal diameter and internal diameter of the pipeline
Diameter, so as to ensure equipment connection pipeline stabilization operation.
6th, after the completion of assembling, the leakproofness of Double-face flange is detected, to double if finding that leakproofness is unsatisfactory for requirement
Face flange is reprocessed, so as to ensure equipment and pipeline stable connection.
Description of the drawings
Fig. 1 is the process flow chart of Double-face flange pipe connecting method of the embodiment of the present invention.
Fig. 2 is the structure diagram that gasket seal is used after equipment of the embodiment of the present invention is connected with pipeline.
Fig. 3 is the structure diagram of Double-face flange in Fig. 2 of the embodiment of the present invention.
Fig. 4 equipment of the embodiment of the present invention uses the structure diagram of seal with elastometic washer after being connected with pipeline.
In figure：1- equipment nozzles, 2- pipeline nozzles, 3- vessel flanges, 4- pipe flanges, 5- Double-face flanges, 6- bolts, 7-
Flange gasket, 8- rubber rings；5a- Double-face flange quadrantal points, 5b- center circles.
Specific embodiment
Technical solution of the present invention is further illustrated with reference to the accompanying drawings and examples：
As shown in Figure 1 to Figure 3,5 pipe connecting method of Double-face flange in the present embodiment, comprises the following steps：
1) vessel flange 3 is connected on equipment nozzle 1, connecting pipe flange 4 on pipeline nozzle 2, to equipment and pipeline into
The preliminary contraposition of row so that vessel flange 3 and the alignment of 4 center of pipe flange, and cause preset clearance between the two, it should be pointed out that
It is after preliminary contraposition centering, the connecting end surface of vessel flange 3 and pipe flange 4 is substantially parallel, 1 center of equipment nozzle and pipe
The center in road is substantially aligned with, and thus can simplify next construction operation；
2) spacing between measuring apparatus flange 3 and the corresponding multiple quadrantal points of pipe flange 4, quadrantal points, that is, flange end
The point being located on face on same circumference, work progress of the prior art is to correspond vessel flange 3 and pipe flange 4
Quadrantal points be attached, difficulty of construction is big；
3) spacing and the matching requirements vehicle Double-face flange 5 of vessel flange 3 and pipe flange 4 that basis measures, between measuring
It needs to calculate the thickness of Double-face flange 5 away from after, needs to consider the thickness of gasket if there is gasket；
4) using template, inscription rubbing goes out the bolt hole of vessel flange 3 and pipe flange 4 respectively, and according to template to institute's Double-surfaces Method
The both sides of orchid 5 are processed to obtain respectively corresponding bolt hole, and the vessel flange 3 and pipe flange 4 in the present embodiment pass through
Bolt 6 is fixedly connected, easy to connect and stable structure, and the both sides of Double-face flange 5 are both provided with bolt hole, and the bolt hole of both sides
It can stagger, so that process is eased；
5) according to equipment internal diameter and the internal diameter of pipeline, the center circle 5b of processing Double-face flange 5；
6) Double-face flange 5 is placed between pipe flange 4 and vessel flange 3 and is aligned, 5 liang of Double-face flange is installed
The bolt 6 of side, alignment are directed at corresponding bolt hole, tighten the connection of completion equipment and pipeline after bolt 6.
Based on above technical scheme, it is attached before vessel flange 3 and pipe flange 4 by Double-face flange 5, Double-surfaces Method
Blue 5 thickness are that distance between connecting pipe flange 4 and vessel flange 3 is treated in actual measurement, when vessel flange 3 and the flange of pipe flange 4
When deviation is larger, pipe flange 4 can be ensured by the processing to Double-face flange 5 and vessel flange 3 to connect leakproofness good, thus set
Standby flange 3 is not stressed or pulling force, so that connecting stable structure after equipment is connected with pipeline；Two ends of Double-face flange 5
The bolt hole in face is each independent, therefore treats that the bolt hole of connecting pipe flange 4 and vessel flange 3 can stagger, so that applying
Work process is more convenient, reduces labor intensity；By the connection method of Double-face flange 5, the equipment pipe of different-diameter can be connected
Mouth 1 and pipeline, so that the connection applicability of pipeline is wider；When the pipe diameter of connection is larger, this method whole process
Double-face flange 5 only need to be moved and processed, without carrying out school pipe operation to very large equipment pipe, it is strong that work can be reduced
Degree reduces construction cost and improves work efficiency.
In the present embodiment, specific operation process is in step 1)：Mobile equipment and pipeline so that vessel flange 3 and pipe
The end face of road flange 4 is parallel, and the gap between adjustment equipment flange 3 and pipe flange 4 is 50mm-100mm, using above-mentioned
Gap can so that next construction is more convenient, compared in the prior art directly by vessel flange 3 and pipe flange 4 into
The operating process in row alignment, mobile vessel flange 3 and pipe flange 4 to above-mentioned gap is also simpler.It is pointed out that work as
Above-mentioned gap can cause the operation process of mobile equipment and pipeline to become difficult when too small, and then be caused using excessive gap double
The processed complex of face flange 5 and the cost for adding Double-face flange 5, therefore above-mentioned gap is used as preferred scheme.
Preferably, the specific operation process in step 2) is：Vessel flange 3 and pipe are gone out using vernier caliper measurement
The spacing between corresponding four quadrantal points between road flange 4, four quadrantal points are uniformly distributed on same circumference, corresponding
, Double-face flange quadrantal points 5a is also uniformly arranged on same circumference, and measure spacing can also use other instruments, simply swim
It marks the precision height of slide calliper rule and measurement is convenient, equally distributed four quadrantal points can ensure total stable connection.
In the present embodiment, flange gasket 7 is provided between Double-face flange 5 and vessel flange 3 and pipe flange 4, is passed through
Set flange gasket 7 that can ensure the leakproofness of Double-face flange 5, when in step 3) into driving Double-face flange 5, Double-face flange
5 thickness needs the thickness of companion flange gasket 7 and the spacing of measurement to be calculated, it should be pointed out that equipment method as shown in Figure 2
Orchid 3 and pipe flange 4 realize face sealing using flange gasket 7, can also be sealed as shown in Figure 4 using rubber ring 8, accordingly
Double-face flange need to process that the card slot of rubber ring 8 is installed, sealed compared with the face of flange gasket 7, rubber ring 8 is then line
Sealing, sealing effect do not have that flange gasket 7 is good, therefore use flange gasket 7 as preferred embodiment.Further, flange gasket 7 is stone
Black corrugated serrated compound gasket, graphite corrugated serrated compound gasket intensity is high, and compression resistant is functional, so as to ensure the sealing of Double-face flange 5
Property is good.
Preferably, the specific operation process in step 4) is：Using Paper Formwork respectively in pipe flange 4 and vessel flange
Inscription rubbing goes out position and the size of bolt hole on 3, and the inscription rubbing of Paper Formwork works well, and of low cost, is marked in template
For the bolt hole of connection, auger shell hole and tapping are matched somebody with somebody according to Paper Formwork respectively in 5 both sides of Double-face flange so that Double-face flange 5
Both sides obtain the bolt hole for mating connection.
In the present embodiment, in step 5) when processing the center circle 5b of Double-face flange 5, in selected equipment internal diameter and pipeline
Diameter of the smaller internal diameter as center circle 5b in footpath, so as to ensure the pipeline stabilization operation of equipment connection.
Further, after the completion of step 6) assembling, the leakproofness of Double-face flange 5 is detected, if finding leakproofness not
It meets the requirements, Double-face flange 5 is reprocessed, so as to ensure equipment and pipeline stable connection.
In conclusion using 5 pipe connecting method of Double-face flange of the embodiment of the present invention, vessel flange 3 and pipe flange 4
It is attached before by Double-face flange 5,5 thickness of Double-face flange is the spacing that connecting pipe flange 4 and vessel flange 3 are treated in actual measurement
From when the flange deviation of vessel flange 3 and pipe flange 4 is larger, can ensureing pipe flange by the processing to Double-face flange 5
4 and vessel flange 3 to connect leakproofness good, thus vessel flange 3 is not stressed or pulling force, so that connection equipment connects with pipeline
Connect rear stable structure；The bolt hole of two end faces of Double-face flange 5 is each independent, therefore treats connecting pipe flange 4 and equipment method
The bolt hole of orchid 3 can stagger, so that work progress is more convenient, reduce labor intensity；Pass through the connection of Double-face flange 5
Method can connect the equipment nozzle 1 and pipeline of different-diameter, so that the connection applicability of pipeline is wider；When connection
When pipe diameter is larger, this method whole process only need to move and process Double-face flange 5, without to very large equipment pipe
School pipe operation is carried out, labor intensity can be reduced, reduce construction cost and improves work efficiency.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and replacement can also be made, these improve and replace
Also it should be regarded as protection scope of the present invention.
Claims (8)
1. a kind of Double-face flange pipe connecting method, which is characterized in that comprise the following steps：
1) connect vessel flange on equipment nozzle, connecting pipe flange on pipeline nozzle, to the equipment and the pipeline into
The preliminary contraposition of row so that the vessel flange and pipe flange center alignment, and cause preset clearance between the two；
2) spacing between the vessel flange and the corresponding multiple quadrantal points of the pipe flange is measured；
3) according to the spacing and the matching requirements vehicle Double-face flange of the vessel flange and the pipe flange measured；
4) using template, inscription rubbing goes out the bolt hole of the vessel flange and the pipe flange respectively, and according to the template to institute
The both sides for stating Double-face flange are processed to obtain corresponding bolt hole respectively；
5) according to the equipment internal diameter and the internal diameter of the pipeline, the center circle of the Double-face flange is processed；
6) Double-face flange is placed between the pipe flange and the vessel flange and is aligned, installed described double
The bolt of face flange both sides.
2. Double-face flange pipe connecting method according to claim 1, which is characterized in that specific operation process in step 1)
For：
The mobile equipment and the pipeline so that the vessel flange is parallel with the end face of the pipe flange, described in adjusting
Gap between vessel flange and the pipe flange is 50mm-100mm.
3. Double-face flange pipe connecting method according to claim 1, which is characterized in that the concrete operations in step 2)
Cheng Wei：
Gone out using vernier caliper measurement between corresponding four quadrantal points between the vessel flange and the pipe flange
Spacing, four quadrantal points are uniformly distributed on same circumference.
4. Double-face flange pipe connecting method according to claim 1, which is characterized in that the Double-face flange is set with described
It is standby to be provided with flange gasket between flange and the pipe flange, it is described when making the Double-face flange into driving in step 3)
The thickness of Double-face flange need to be calculated with reference to the thickness of the flange gasket and the spacing of measurement.
5. Double-face flange pipe connecting method according to claim 4, which is characterized in that the flange gasket is graphite ripple
Tooth Composition spacer.
6. Double-face flange pipe connecting method according to claim 1, which is characterized in that the concrete operations in step 4)
Cheng Wei：
Using Paper Formwork, the inscription rubbing on the pipe flange and the vessel flange goes out the position of the bolt hole and big respectively
Small, mark is used on the bolt hole of connection in template, is distinguished according to the Paper Formwork in the Double-face flange both sides
With auger shell hole and tapping so that the Double-face flange both sides obtain the bolt hole for mating connection.
7. Double-face flange pipe connecting method according to claim 1, which is characterized in that processing described pair in step 5)
During the center circle of face flange, smaller internal diameter is chosen in the equipment internal diameter and the internal diameter of the pipeline as the straight of the center circle
Footpath.
8. Double-face flange pipe connecting method according to claim 1, which is characterized in that right after the completion of step 6) assembling
The leakproofness of the Double-face flange is detected, and the Double-face flange is carried out if finding that leakproofness is unsatisfactory for requirement again to add
Work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711305819.9A CN108050322B (en) | 2017-12-06 | 2017-12-06 | A kind of Double-face flange pipe connecting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711305819.9A CN108050322B (en) | 2017-12-06 | 2017-12-06 | A kind of Double-face flange pipe connecting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108050322A true CN108050322A (en) | 2018-05-18 |
| CN108050322B CN108050322B (en) | 2019-12-03 |
Family
ID=62123762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201711305819.9A Active CN108050322B (en) | 2017-12-06 | 2017-12-06 | A kind of Double-face flange pipe connecting method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110498007A (en) * | 2019-09-03 | 2019-11-26 | 中船黄埔文冲船舶有限公司 | A kind of sleeping installation method making segmentation flip side and pushing away |
| CN114215974A (en) * | 2021-12-24 | 2022-03-22 | 南京铖联激光科技有限公司 | 3D prints with protection gas device that has a warning function |
| CN115789368A (en) * | 2023-02-02 | 2023-03-14 | 山西管家营法兰锻造集团有限公司 | Double-faced flange pipeline connecting structure and connecting method |
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| CN103437834A (en) * | 2013-08-30 | 2013-12-11 | 中国化学工程第三建设有限公司 | Stress-free mounting method of flange at inlet steam pipe section of turbine |
| CN104048105A (en) * | 2014-05-29 | 2014-09-17 | 中国五冶集团有限公司 | Low pressure pipeline mounting process used in 300m<2> sintering low temperature waste heat power generation system |
| CN104354141A (en) * | 2014-10-31 | 2015-02-18 | 鞍钢建设集团有限公司 | Auxiliary device for installing large-sized pipeline and valve connection flange and application method of auxiliary device |
| JP2016017600A (en) * | 2014-07-09 | 2016-02-01 | 日本ヴィクトリック株式会社 | Expansion flexible joint and method for mounting the same |
| CN107116361A (en) * | 2017-04-25 | 2017-09-01 | 中国化学工程第三建设有限公司 | The pressure testing of Steam Turbine jet chimney entirety, overall Stressless Pipeline Connection construction method |
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|---|---|---|---|---|
| CN103437834A (en) * | 2013-08-30 | 2013-12-11 | 中国化学工程第三建设有限公司 | Stress-free mounting method of flange at inlet steam pipe section of turbine |
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| JP2016017600A (en) * | 2014-07-09 | 2016-02-01 | 日本ヴィクトリック株式会社 | Expansion flexible joint and method for mounting the same |
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| CN110498007A (en) * | 2019-09-03 | 2019-11-26 | 中船黄埔文冲船舶有限公司 | A kind of sleeping installation method making segmentation flip side and pushing away |
| CN114215974A (en) * | 2021-12-24 | 2022-03-22 | 南京铖联激光科技有限公司 | 3D prints with protection gas device that has a warning function |
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| Publication number | Publication date |
|---|---|
| CN108050322B (en) | 2019-12-03 |
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