CN106051352A - Processing technology of reducing tee pipe fitting of large-size pressure pipeline - Google Patents
Processing technology of reducing tee pipe fitting of large-size pressure pipeline Download PDFInfo
- Publication number
- CN106051352A CN106051352A CN201610509351.4A CN201610509351A CN106051352A CN 106051352 A CN106051352 A CN 106051352A CN 201610509351 A CN201610509351 A CN 201610509351A CN 106051352 A CN106051352 A CN 106051352A
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- Prior art keywords
- pipeline
- reducing tee
- reducing
- blank
- mouth
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/021—T- or cross-pieces
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Of Metal (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses a processing technology of a reducing tee pipe fitting of a large-size pressure pipeline. According to the reducing tee pipe fitting of the large-size pressure pipeline, an ultrahigh-temperature-resistant pipeline SA3P35P91 is used as a reducing tee blank, and the outer diameter of the blank is greater than the maximum outer diameter of the middle part of a reducing tee straight pipeline; the length of the blank is determined by adding the length of the reducing tee straight pipeline with a required allowance, and then blanking is carried out; the blank is put into a preheating furnace; when the temperature of the blank preheated is increased to 1,000 to 1,050 DEG C, the blank is taken out and then put into a pressing die for flattening up and down; when the mouth of the pressing die is full and the end part is bulged, a reducing tee is molded and then taken out; a bulge at the orifice of a branch pipeline is cut off to form a blank of the reducing tee; and a slope cushion block is additionally arranged in the mouth of the die, to perform shrinkage and repeated shrinkage pressing on the orifices of the straight pipeline and the branch pipeline from outside to inside. When a valve of the pipeline is opened or closed, high pressure caused by high flow is relieved, so that damage to a pipe joint caused by the high pressure and erosion is avoided, and the service life is prolonged.
Description
Technical field
The present invention relates to the processing of the T joint of the pressure pipeline of large power generating equipment, a kind of large-scale manometer tube
The processing technique of road reducing tee pipe fitting.
Background technology
At present, the T joint of the pressure pipeline of common large power generating equipment is cast member and pipeline welding part, and casts
The tube wall crushing resistance of forging piece is relatively low, and additionally the tube wall frequent phase uses, and after high temperature, the oxidation of high pressure and corroding, common have gas
Bubble phenomenon of osmosis, the quality of the T joint of pipeline welding part is unstable, and great majority are weld seam phenomenon of osmosis, high-rating generator one
But find that the tee T of pressure pipeline is connected to phenomenon of osmosis, in order to ensure safety in production, need maintenance down；It addition, common three
The majority that siphunculus connects is straight tube, and three bores are identical, and resistance to pressure is low, and the flow of three bores is uneven；In view of the foregoing, existing
The processing technique of a kind of large-scale pressure pipeline reducing tee pipe fitting is proposed.
Summary of the invention
The T joint frequent phase that the invention aims to overcome the pressure pipeline of existing large power generating equipment makes
With, after high temperature, the oxidation of high pressure and corroding, common have bubble phenomenon of osmosis, the quality of the T joint of pipeline welding part
Instability, great majority are weld seam phenomenon of osmosis；The majority of common T joint is straight tube, and three bores are identical, and resistance to pressure is low, three
The flow of individual bore is uneven, by reasonably design, it is provided that the processing technique of a kind of large-scale pressure pipeline reducing tee pipe fitting,
Inventive pipeline, when controlled valve, can play the high pressure alleviating big flow, thus avoid high pressure and erosion to connect pipe and cause
Damage, increase the service life.
The present invention to achieve these goals, adopts the following technical scheme that a kind of large-scale pressure pipeline reducing tee pipe fitting
Processing technique, described large-scale pressure pipeline reducing tee pipe fitting, be by compress little interface, compress big interface, big mouth thicken
Tube wall, osculum thicken tube wall, osculum outer tube diameter, mouth of pipe slope soldering opening, big mouth outer tube diameter, reducing tee composition；Reducing tee
The mouth of pipe at straight pipeline two ends the little interface of compression is set, be vertically arranged bigbore isocon in the middle part of the straight pipeline of reducing tee
Road, isocon road junction arranges the big interface of compression, arranges outer camber osculum and thicken tube wall in the middle part of straight pipeline, and osculum thickeies the thickness of tube wall
Degree is set to the gradual change shape that the thick oral area in middle part is thin, and the outer diameter tube compressing little interface is set to osculum outer tube diameter, osculum outer tube diameter
The corresponding little gas pipeline outer wall of external diameter is arranged, and straight pipeline oral area arranges mouth of pipe slope soldering opening；Compress the outer diameter tube of big interface
Being set to big mouth outer tube diameter, the root of shunt conduit and straight pipeline arrange the big mouth of oblique wave type and thicken tube wall, and pipeline oral area is arranged
Mouth of pipe slope soldering opening；
Select materials, use SA3P35P91 superhigh temperature resistant pipeline to be more than reducing tee straight tube as reducing tee stock, the external diameter of stock
Maximum outside diameter in the middle part of road, length of stock adds required surplus, then blanking according to the length of reducing tee straight pipeline；
Adding man-hour, the stock of reducing tee is put in preheating furnace, takes out hair time between C-1050 ° of C of preheating temperature to 1000 °
Embryo, puts into stock in compacting tool set and flattens material embryo up and down, after having flattened, stock is carried out two ends extruding, and two ends are squeezed
It is depressed in the middle part of blank to protrude and is full of in compacting tool set isocon road junction, mould mouth to be pressed and completes reducing tee during the bubbling of end
Molding after take out, then cut away and be in charge of the bubbling at road junction and complete the blank of reducing tee；
Reducing adds man-hour, increases slope cushion block in mould mouth, and slope cushion block is after mould mouth inner position；Reducing three after flattening
Logical blank is put into and is taken out when being again preheated in preheating furnace between 1000 ° of C-1050 ° of C；Blank is put in compacting tool set, mould
Have the compacting that by slope cushion block, the mouth outside inwardly curium pressure of straight pipeline and subtube is carried out reducing, be less than in blank temperature
Stop compacting during 1000 ° of C, take out blank and put into taking-up when being again preheated in preheating furnace between 1000 ° of C-1050 ° of C；So
Repeat blank is repeatedly suppressed, after mould closes in fact, complete the reducing compacting of reducing tee oral area；
Reducing tee reducing completes that inner-walls of duct is carried out polishing and repaiies embryo, and inwall carries out polishing after equating threeway blank placing car
Bed location, the interior warp of Vehicle Processing reducing and external diameter, warp in the interior warp gas pipeline corresponding with external diameter of reducing tee reducing behind location
With external diameter Vehicle Processing；Vehicle Processing is processed equating to the opening's edge portion of reducing tee after completing, and after equating manages opening's edge portion
Mouth slope soldering opening Vehicle Processing, after mouth of pipe slope soldering opening completes Vehicle Processing, moves lower lathe reducing tee, carries out lower one work
Sequence.
The invention has the beneficial effects as follows: the present invention uses SA3P35P91 superhigh temperature resistant pipeline as reducing tee, passes through mould
Tool is suppressed repeatedly, after having flattened, material embryo is carried out two ends extruding, is full of in the middle part of two ends extruding to blank in mould mouth to be pressed
Completing the molding of reducing tee during with end bubbling, pipeline, when controlled valve, can play the high pressure alleviating big flow, thus
Avoiding high pressure and erosion to connect pipe and cause damage, moulding process is simple, and efficiency is high；The reducing tee made is formed in one, sternly
Close property is good, non-leakage, and energy-saving and emission-reduction increase the service life and maintenance cycle.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is, general assembly structural representation；
In Fig. 1: compress little interface 1, compress big interface 2, big mouth thickeies tube wall 3, osculum thickeies tube wall 4, osculum outer tube diameter 5, pipe
Mouth slope soldering opening 6, big mouth outer tube diameter 7, reducing tee 8.
Detailed description of the invention
The present invention is described in further detail with detailed description of the invention below in conjunction with embodiment:
Embodiment 1
The mouth of pipe at the straight pipeline two ends of reducing tee 8 arranges the little interface 1 of compression, is vertically arranged in the middle part of the straight pipeline of reducing tee 8
Bigbore shunt conduit, isocon road junction arranges the big interface 2 of compression, arranges outer camber osculum and thicken tube wall 4 in the middle part of straight pipeline,
Osculum thickeies the thickness of tube wall 4 and is set to the gradual change shape that the thick oral area in middle part is thin, and the outer diameter tube compressing little interface 1 is set to osculum
Outer tube diameter 5, the corresponding little gas pipeline outer wall of osculum outer tube diameter 5 external diameter is arranged, and straight pipeline oral area arranges mouth of pipe slope soldering opening 6；
The outer diameter tube compressing big interface 2 is set to big mouth outer tube diameter 7, and the root of shunt conduit and straight pipeline arrange the big mouth of oblique wave type
Thickening tube wall 3, pipeline oral area arranges mouth of pipe slope soldering opening 6；
Selecting materials, use SA3P35P91 superhigh temperature resistant pipeline as reducing tee 8 stock, the external diameter of stock is straight more than reducing tee 8
Maximum outside diameter in the middle part of pipeline, length of stock adds required surplus, then blanking according to the length of reducing tee 8 straight pipeline；
Adding man-hour, the stock of reducing tee 8 is put in preheating furnace, takes out hair time between C-1050 ° of C of preheating temperature to 1000 °
Embryo, puts into stock in compacting tool set and flattens material embryo up and down, after having flattened, stock is carried out two ends extruding, and two ends are squeezed
It is depressed in the middle part of blank to protrude and is full of in compacting tool set isocon road junction, mould mouth to be pressed and completes reducing tee during the bubbling of end
Take out after the molding of 8, then cut away and be in charge of the bubbling at road junction and complete the blank of reducing tee 8；
Embodiment 2
Reducing adds man-hour, increases slope cushion block in mould mouth, and slope cushion block is after mould mouth inner position；Reducing three after flattening
The blank of logical 8 is put into and is taken out when being again preheated in preheating furnace between 1000 ° of C-1050 ° of C；Blank is put in compacting tool set,
Mould carries out the compacting of reducing by slope cushion block to the mouth outside inwardly curium pressure of straight pipeline and subtube, is less than in blank temperature
Stop compacting during 1000 ° of C, take out blank and put into taking-up when being again preheated in preheating furnace between 1000 ° of C-1050 ° of C；So
Repeat blank is repeatedly suppressed, after mould closes in fact, complete the reducing compacting of reducing tee 8 oral area；
Embodiment 3
Reducing tee 8 reducing completes that inner-walls of duct is carried out polishing and repaiies embryo, and inwall after carrying out polishing equating is put into threeway blank
Lathe positions, and the interior warp of Vehicle Processing reducing and external diameter behind location, in the interior warp gas pipeline corresponding with external diameter of reducing tee 8 reducing
Warp and external diameter Vehicle Processing；Vehicle Processing is processed equating to the opening's edge portion of reducing tee 8 after completing, and after equating carries out opening's edge portion
Soldering opening 6 Vehicle Processing of mouth of pipe slope, after mouth of pipe slope soldering opening 6 completes Vehicle Processing, moves lower lathe reducing tee 8, under carrying out
One procedure.
Claims (3)
1. a processing technique for large-scale pressure pipeline reducing tee pipe fitting, described large-scale pressure pipeline reducing tee pipe fitting,
It is that big mouth thickeies tube wall (3), osculum thickeies tube wall (4), osculum outer tube diameter by compressing little interface (1), compressing big interface (2)
(5), mouth of pipe slope soldering opening (6), big mouth outer tube diameter (7), reducing tee (8) are constituted；It is characterized in that: reducing tee (8)
The mouth of pipe at straight pipeline two ends arranges the little interface of compression (1), is vertically arranged bigbore shunting in the middle part of the straight pipeline of reducing tee (8)
Pipeline, isocon road junction arranges the big interface of compression (2), arranges outer camber osculum and thicken tube wall (4) in the middle part of straight pipeline, and osculum thickeies
The thickness of tube wall (4) is set to the gradual change shape that the thick oral area in middle part is thin, and the outer diameter tube compressing little interface (1) is set to osculum outer tube
Footpath (5), the corresponding little gas pipeline outer wall of osculum outer tube diameter (5) external diameter is arranged, and straight pipeline oral area arranges mouth of pipe slope soldering opening
(6)；The outer diameter tube compressing big interface (2) is set to big mouth outer tube diameter (7), and the root of shunt conduit and straight pipeline arrange oblique wave
The big mouth of type thickeies tube wall (3), and pipeline oral area arranges mouth of pipe slope soldering opening (6)；
Select materials, use SA3P35P91 superhigh temperature resistant pipeline to be more than reducing tee as reducing tee (8) stock, the external diameter of stock
(8) maximum outside diameter in the middle part of straight pipeline, length of stock adds required surplus, then blanking according to the length of reducing tee (8) straight pipeline；
Adding man-hour, the stock of reducing tee (8) is put in preheating furnace, takes out time between C-1050 ° of C of preheating temperature to 1000 °
Blank, puts into stock in compacting tool set and flattens material embryo up and down, after having flattened, stock is carried out two ends extruding, two ends
Extrude to being full of in protruding compacting tool set isocon road junction, mould mouth to be pressed in the middle part of blank and completing reducing three during the bubbling of end
Take out after the molding of logical (8), then cut away and be in charge of the bubbling at road junction and complete the blank of reducing tee (8).
2. according to the processing technique of a kind of large-scale pressure pipeline reducing tee pipe fitting described in claim 1, it is characterised in that:
Reducing adds man-hour, increases slope cushion block in mould mouth, and slope cushion block is after mould mouth inner position；Reducing three after flattening
The blank of logical (8) is put into and is taken out when being again preheated in preheating furnace between 1000 ° of C-1050 ° of C；Blank is put into compacting tool set
In, mould carries out the compacting of reducing by slope cushion block to the mouth outside inwardly curium pressure of straight pipeline and subtube, in blank temperature
Less than stopping compacting during 1000 ° of C, take out blank and put into taking-up when being again preheated in preheating furnace between 1000 ° of C-1050 ° of C；As
This repeat blank is repeatedly suppressed, until mould close real after, complete the reducing compacting of reducing tee (8) oral area.
3. according to the processing technique of a kind of large-scale pressure pipeline reducing tee pipe fitting described in claim 1, it is characterised in that:
Reducing tee (8) reducing completes that inner-walls of duct is carried out polishing and repaiies embryo, and inwall carries out polishing after equating threeway blank placing car
Bed location, the interior warp of Vehicle Processing reducing and external diameter behind location, in the interior warp gas pipeline corresponding with external diameter of reducing tee (8) reducing
Warp and external diameter Vehicle Processing；Vehicle Processing is processed equating to the opening's edge portion of reducing tee (8) after completing, and after equating enters opening's edge portion
Soldering opening (6) Vehicle Processing of line pipe mouth slope, after mouth of pipe slope soldering opening (6) completes Vehicle Processing, moves reducing tee (8) and gets off
Bed, carries out next process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610509351.4A CN106051352B (en) | 2016-06-30 | 2016-06-30 | A kind of processing technology of large-scale pressure pipeline reducing tee pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610509351.4A CN106051352B (en) | 2016-06-30 | 2016-06-30 | A kind of processing technology of large-scale pressure pipeline reducing tee pipe fitting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106051352A true CN106051352A (en) | 2016-10-26 |
| CN106051352B CN106051352B (en) | 2017-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610509351.4A Active CN106051352B (en) | 2016-06-30 | 2016-06-30 | A kind of processing technology of large-scale pressure pipeline reducing tee pipe fitting |
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| CN (1) | CN106051352B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302273A (en) * | 2018-03-23 | 2018-07-20 | 嘉兴市乍浦杭湾重型机械有限公司 | A kind of corrosion-resistant high rigidity threeway forging |
| CN108758142A (en) * | 2018-06-28 | 2018-11-06 | 江阴市天柠管道有限公司 | A kind of supervisor's reducing tee and its production technology |
| CN108843866A (en) * | 2018-08-01 | 2018-11-20 | 江苏新恒基特种装备股份有限公司 | A kind of connection method of high-temperature service adapter tube |
| CN112082029A (en) * | 2020-09-18 | 2020-12-15 | 中国航发四川燃气涡轮研究院 | Joint |
| CN113339612A (en) * | 2021-06-07 | 2021-09-03 | 中山中舟海洋科技有限公司 | Reducing three-way hose joint and processing technology thereof |
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| CN104373721A (en) * | 2014-09-03 | 2015-02-25 | 江苏天毅管路冷镦制造有限公司 | Integrated spherical hydraulic hose metal joint structure and production process thereof |
| CN105033142A (en) * | 2015-07-10 | 2015-11-11 | 河南光大管业有限公司 | Pressing die and pressing process for welding neck flange |
| CN105114740A (en) * | 2015-09-28 | 2015-12-02 | 成都贝根管道有限责任公司 | Method for fabricating plastic lining steel tee joint pipe fitting |
| CN205118545U (en) * | 2015-11-17 | 2016-03-30 | 天津市包尔科密封件有限责任公司 | Technology tee bend is pressed in oil gas pipeline area |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020041096A1 (en) * | 1998-03-13 | 2002-04-11 | Krause Keith M. | Molded hose joint assembly |
| US20070128912A1 (en) * | 2004-08-12 | 2007-06-07 | Ibp Conex Limited | Press connection arrangement and method for producing a press connection arrangement |
| CN104373721A (en) * | 2014-09-03 | 2015-02-25 | 江苏天毅管路冷镦制造有限公司 | Integrated spherical hydraulic hose metal joint structure and production process thereof |
| CN105033142A (en) * | 2015-07-10 | 2015-11-11 | 河南光大管业有限公司 | Pressing die and pressing process for welding neck flange |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108302273A (en) * | 2018-03-23 | 2018-07-20 | 嘉兴市乍浦杭湾重型机械有限公司 | A kind of corrosion-resistant high rigidity threeway forging |
| CN108758142A (en) * | 2018-06-28 | 2018-11-06 | 江阴市天柠管道有限公司 | A kind of supervisor's reducing tee and its production technology |
| CN108758142B (en) * | 2018-06-28 | 2024-03-19 | 江阴市天柠管道有限公司 | Main pipe reducing tee joint and production process thereof |
| CN108843866A (en) * | 2018-08-01 | 2018-11-20 | 江苏新恒基特种装备股份有限公司 | A kind of connection method of high-temperature service adapter tube |
| CN112082029A (en) * | 2020-09-18 | 2020-12-15 | 中国航发四川燃气涡轮研究院 | Joint |
| CN113339612A (en) * | 2021-06-07 | 2021-09-03 | 中山中舟海洋科技有限公司 | Reducing three-way hose joint and processing technology thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106051352B (en) | 2017-12-26 |
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| CB03 | Change of inventor or designer information |
Inventor after: Zong Junwei Inventor after: Zhang Hui Inventor after: Fan Guo Inventor before: Zong Junwei Inventor before: Fan Guo Inventor before: Wang Hongxuan |
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