CN106238866A - Ni-based membrane panel welding method - Google Patents
Ni-based membrane panel welding method Download PDFInfo
- Publication number
- CN106238866A CN106238866A CN201610740345.XA CN201610740345A CN106238866A CN 106238866 A CN106238866 A CN 106238866A CN 201610740345 A CN201610740345 A CN 201610740345A CN 106238866 A CN106238866 A CN 106238866A
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- China
- Prior art keywords
- welding
- band steel
- tube panel
- based band
- panel
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/24—Features related to electrodes
- B23K9/28—Supporting devices for electrodes
- B23K9/285—Cooled electrode holders
Abstract
The invention discloses a kind of Ni-based membrane panel welding method, comprise the following steps: Ni-based pipe (1) and Ni-based band steel (2) are formed tube panel, and is respectively provided with an anti-deformation tool (3) at tube panel two ends；Specific welding sequence, welding manner and weld heat input is used during welding；There is the cooling water of flowing in remaining tube panel in welding process always.Ni-based tube panel uses the welding method welding of the present invention, Ni-based tube panel can be effectively prevented deform in welding process and produce fire check, thus ensure the dimension precision requirement of Ni-based tube panel, reduce the amount of reprocessing of Ni-based tube panel, shorten the production cycle of Ni-based tube panel and improve the quality of Ni-based tube panel.
Description
Technical field
The present invention relates to the welding method of a kind of Ni-based tube panel, the welding method of a kind of Ni-based membrane panel.
Background technology
At present, along with rise and the development of high parameter boiler of coal gasification industry, the application of Ni-based membrane panel is also got over
Come the most extensive.Current Ni-based membrane panel is typically to be passed through to be welded by Ni-based pipe and Ni-based band steel, its weldering used
The method of connecing is: all Ni-based band steel forming Ni-based tube panel starts the Ni-based of order and each Ni-based band steel two ends successively from side
Pipe welds mutually, until being all soldered by all Ni-based band steel of tube panel, and is disposable general when welding every Ni-based band steel
It all welds full.But, owing to Ni-based band steel and Ni-based pipe heat conductivity are relatively low, weld Ni-based when using this kind of welding method
During membrane panel, the temperature of weldment (the most Ni-based pipe and Ni-based band steel) can be higher, causes Ni-based tube panel in welding process
Can deform, and deflection is relatively big, has a strong impact on the dimensional accuracy of Ni-based tube panel.Simultaneously as nickel-base material is when welding
It is easily formed the column crystal seam organization of high directivity, beneficially objectionable impurities segregation, and weld seam process of setting are easily formed eutectic
Point eutectic thing, the most easily produces fire check, so can cause reprocessing, not only increase and reprocess cost, but also can affect nickel
The process-cycle of base tube screen and product quality.
Summary of the invention
The technical problem to be solved is to provide a kind of Ni-based membrane panel welding method, uses the present invention's
Welding method, can be effectively prevented Ni-based tube panel and deform and produce fire check, thus ensure the size essence of Ni-based tube panel
Degree requirement, shortens the production cycle of Ni-based tube panel, improves the quality of Ni-based tube panel.
The technical solution adopted for the present invention to solve the technical problems is: Ni-based membrane panel welding method, including with
Lower step:
First at least two Ni-based pipes and at least one Ni-based band steel are spaced one arc tube panel of composition or straight tube screen；
Then at least two is set on tube panel for the anti-deformation tool preventing tube panel from deforming；
Then by tube panel as follows by corresponding with Ni-based pipe for each Ni-based band steel welding:
First the one side to tube panel carries out the welding of symmetrical interval: the welding sequence of each Ni-based band steel is: first welding is positioned at tube panel
That Ni-based band steel in centre position, and using the axis of this Ni-based band steel as axis of symmetry, then will be located in axis of symmetry both sides
Ni-based band steel carries out the welding of symmetrical interval: after being i.e. soldered symmetrical Ni-based band steel, then when welding the Ni-based band steel of its both sides, between being intended to
Not welding every a Ni-based band steel, just continuing to weld next Ni-based band steel, until completing the one of the Ni-based band steel in this face of tube panel
Wheel welding；After taking turns welding by one the most again, the most unwelded remaining Ni-based band steel carries out two in the middle of tube panel to both sides welding
Wheel is alternately symmetrically welded, until all being welded by all Ni-based band steel in this face of tube panel；The welding manner of single Ni-based band steel is:
All weld to its two ends respectively from the centre of Ni-based band steel, and use interruption welding manner, the most often weld the weld seam of certain length
After, the weld seam being intended to be interrupted certain length does not welds；
Then its another side is carried out symmetrical interval by tube panel turn-over again weld: the welding sequence of each Ni-based band steel in this face of tube panel
Identical with the welding sequence of aforesaid each Ni-based band steel；When welding single Ni-based band steel, all in the middle of Ni-based band steel respectively
Weld to its two ends, and use uninterrupted welding manner, i.e. when welding every Ni-based band steel, all disposable by Ni-based for whole piece flat
The weld seam of steel all welds full；
Finally by tube panel turn-over again with by full for all welderings of the place of weldering in this face: the welding sequence of each Ni-based band steel and single Ni-based
The welding manner of band steel is with the most identical to the welding in this face；
Above-mentioned all of welding operation all uses manual electric arc welding to weld, and use weld heat input all 10-15KJ/cm it
Between；Weld seam can be effectively prevented in cooling procedure, produce fire check.
In the whole welding process of tube panel, there is cooling water in remaining all Ni-based pipe of tube panel in flowing always.
Cooling water can be effectively reduced tube panel temperature, makes tube panel that deformation to be less likely to occur, and meanwhile, cooling water is warm between can also reducing
Degree, prevents commissure overheated, to avoid coarse grains to increase segregation degree, thus prevents weld seam from producing fire check.
Further, described anti-deformation tool includes holder and the fixture mutually removably connected, described clamping
The shape of part adapts with the shape of tube panel, and two described holders are respectively placed in along the direction being perpendicular to Ni-based pipe axis
On the positive and negative of the same position of tube panel, the length of holder is more than or equal to the width of tube panel, and the two ends of two holders are divided
Tong Guo not connect fixing by a described fixture.Prevent tube panel from deforming in welding process.
Further, the spacing distance between two anti-deformation tools adjacent on tube panel is less than or equal to 2000mm, and
Two adjacent anti-deformation tools connect by least one longitudinally fixed part is fixing.Strengthen the stability of anti-deformation tool.
Further, when using interruption welding manner to weld every Ni-based band steel, all in the middle of Ni-based band steel respectively
Welding to its two ends, often after the weld seam of welding 150-250mm length, the weld seam being intended to be interrupted 150-250mm length does not welds.
Further, it is a pipe string that all Ni-based Guan Jun of tube panel is serially connected by rubber tube, and one end of pipe string is
Water inlet end, the other end is water side, is passed through cooling water from water inlet end, makes cooling water flow through all of Ni-based Guan Houzai from water side
Flow out.
The invention has the beneficial effects as follows: use the welding method of the present invention can be effectively prevented Ni-based tube panel and welding
Journey deforms and produces fire check, thus ensure Ni-based tube panel dimension precision requirement, reduce Ni-based tube panel the amount of reprocessing,
Shorten the production cycle of Ni-based tube panel and improve the quality of Ni-based tube panel.
Accompanying drawing explanation
Fig. 1 is the front view of the arc tube panel of the present invention.
Fig. 2 is the top view of the arc tube panel of Fig. 1.
Fig. 3 is the Facad structure figure of the arc tube panel of the embodiment of the present invention 1.
Fig. 4 is the inverse layer structure figure of the arc tube panel of the embodiment of the present invention 1.
Figure is labeled as: the Ni-based pipe of 1-, the Ni-based band steel of 2-, 3-anti-deformation tool, the longitudinally fixed part of 4-, 5-clip, 6-
Fixture, number band steel of 7-, No. bis-band steels of 8-, No. tri-band steels of 9-, No. tetra-band steels of 10-, No. five band steels of 11-, No. six band steels of 12-,
No. seven band steels of 13-, No. eight band steels of 14-, No. nine band steels of 15-.
Detailed description of the invention
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
The Ni-based membrane panel welding method of the present invention, comprises the following steps:
First at least two Ni-based pipes 1 and at least one Ni-based band steel 2 are spaced one arc tube panel of composition or straight tube screen；
Then at least two is set on tube panel for the anti-deformation tool 3 preventing tube panel from deforming；
Then by tube panel as follows by corresponding with Ni-based pipe 1 for each Ni-based band steel 2 welding:
First the one side to tube panel carries out the welding of symmetrical interval: the welding sequence of each Ni-based band steel 2 is: first welding is positioned at tube panel
That Ni-based band steel in centre position, and using the axis of this Ni-based band steel as axis of symmetry, then will be located in axis of symmetry both sides
Ni-based band steel carries out the welding of symmetrical interval: after being i.e. soldered symmetrical Ni-based band steel, then when welding the Ni-based band steel of its both sides, between being intended to
Not welding every a Ni-based band steel, just continuing to weld next Ni-based band steel, until completing the one of the Ni-based band steel in this face of tube panel
Wheel welding；After taking turns welding by one the most again, the most unwelded remaining Ni-based band steel carries out two in the middle of tube panel to both sides welding
Wheel is alternately symmetrically welded, until all being welded by all Ni-based band steel in this face of tube panel；The welding manner of single Ni-based band steel 2
For: all weld to its two ends respectively from the centre of Ni-based band steel, and use interruption welding manner, the most often weld the weldering of certain length
After seam, the weld seam being intended to be interrupted certain length does not welds；
Then its another side is carried out symmetrical interval by tube panel turn-over again weld: the welding sequence of each Ni-based band steel 2 in this face of tube panel
Identical with the welding sequence of aforesaid each Ni-based band steel；When welding single Ni-based band steel 2, all in the middle of Ni-based band steel respectively
Weld to its two ends, and use uninterrupted welding manner, i.e. when welding every Ni-based band steel, all disposable by Ni-based for whole piece flat
The weld seam of steel all welds full；
Finally by tube panel turn-over again with by full for all welderings of the place of weldering in this face: the welding sequence of each Ni-based band steel 2 and single nickel
The welding manner of base band steel 2 is with the most identical to the welding in this face；
Above-mentioned all of welding operation all uses manual electric arc welding to weld, and use weld heat input all 10-15KJ/cm it
Between；
In the whole welding process of tube panel, there is cooling water in remaining all Ni-based pipe 1 of tube panel in flowing always.
Described anti-deformation tool 3 includes holder 5 and the fixture 6 mutually removably connected, the shape of described holder 5
Shape adapts with the shape of tube panel, and two described holders 5 are respectively placed in tube panel along the direction being perpendicular to Ni-based pipe 1 axis
Same position positive and negative on, the length of holder 5 is more than or equal to the width of tube panel, and the two ends of two holders 5 are respectively
Connected fixing by a described fixture 6.
The spacing distance between two anti-deformation tools 3 adjacent on tube panel is less than or equal to 2000mm, and adjacent two
Individual anti-deformation tool 3 is by least one longitudinally fixed fixing connection of part 4.
When using interruption welding manner to weld every Ni-based band steel 2, all from the centre of Ni-based band steel 2 respectively to its two ends
Welding, often after the weld seam of welding 150-250mm length, the weld seam being intended to be interrupted 150-250mm length does not welds.Weld every nickel
During base band steel, it is possible to ensure every Ni-based band steel and the Ni-based pipe being positioned at its both sides all will not deform.
It is a pipe string that all Ni-based pipe 2 of tube panel is all serially connected by rubber tube, and one end of pipe string is water inlet end, separately
One end is water side, is passed through cooling water from water inlet end, makes cooling water flow out from water side after flowing through all of Ni-based pipe 2 again.
Embodiment
The Ni-based membrane panel welding method of the present invention, comprises the following steps:
First by the Ni-based pipe of ten a length of 2000mm and nine length slightly shorter than the spaced row of Ni-based band steel of Ni-based pipe
Row constitute an arc tube panel；Due to a length of 2000mm of tube panel, so at least two anti-deformation work can be arranged on tube panel
Dress, the tube panel of this embodiment is provided with two anti-deformation tools, two anti-deformation tools be separately positioned on tube panel top and
Bottom；The manufacturing process of anti-deformation tool is: the holder first two shapes and arc tube panel shape adapted is along hanging down
On the positive and negative of the same position being directly respectively placed in tube panel in the direction of Ni-based pipe axis, and make the table of holder and arc tube panel
Face fits tightly, and the length of holder, slightly larger than the width of tube panel, then re-uses two fixtures respectively by two holders
Two ends be fixedly connected by welding, by being respectively provided with an anti-deformation tool at the top of tube panel and bottom, permissible
Prevent tube panel described later from deforming during welding to a certain extent.In order to further enhance the steady of anti-deformation tool
Qualitative, re-use three longitudinally fixed steel respectively by fixing, herein by being welded to connect to two ends and the middle part of two anti-deformation tools
Longitudinally fixed steel use channel-section steel.
Then using rubber tube to be serially connected ten Ni-based pipes of arc tube panel is a pipe string, and one end of pipe string is for entering
Water end (W.E.), the other end is water side, needs to be passed through cooling in pipe string in the whole welding process of arc tube panel described later always
Water, cooling water flows out from water side after water inlet end enters and flows through whole pipe string again.When tube panel is in welding, cold by flowing
But the cooling effect of water can be effectively reduced the temperature of tube panel, makes tube panel that deformation to be less likely to occur, and, cooling water can also drop
Temperature between low road, prevents commissure overheated, to avoid coarse grains to increase segregation degree, thus plays and prevents weld seam from producing hot tearing
The effect of stricture of vagina.Further, since the cooling water of the present invention only disposably flows in pipe string, add and described later tube panel is adopted
Take the welding manner of uniqueness so that when the cooling water of the present invention flows out from outlet pipe after being cooled down by tube panel again, its temperature is also
It is too high on will not, lowers the requirement so the cooling water of the present invention only need to use room temperature cold water to meet, it is not necessary to often
Temperature cold water carries out cooling and processes the cooling water lower to obtain temperature.
Finally by arc tube panel as follows by corresponding with Ni-based pipe for each Ni-based band steel welding:
First the one side (being considered as the front of tube panel) to tube panel carries out the welding of symmetrical interval: the welding sequence of each Ni-based band steel is:
First welding is positioned at No. five band steels 11 in tube panel centre position, and using the axis of No. five band steels 11 as axis of symmetry, then by position
Eight Ni-based band steels in axis of symmetry both sides carry out the welding of symmetrical interval: after being i.e. soldered No. five band steels 11, then welding seven successively
Band steel 9, No. nine band steels 15 of 13, No. three band steels and a band steel 7, the most just complete tube panel frontal width direction is Ni-based flat
The one of steel takes turns welding；Take turns welding the most unwelded remaining Ni-based band steel the most again to carry out two and take turns by one and be alternately symmetrically welded, weld
Connecing order is: No. six band steels 10, No. eight band steels 14 of 12, No. four band steels and No. two band steels 8, now tube panel front is all Ni-based flat
Steel is the most all soldered；The welding manner of the Ni-based band steel of wall scroll is: all weld to its two ends respectively from the centre of Ni-based band steel, and
Using symmetry to be interrupted welding manner, the most often after the weld seam of welding 200mm length, the weld seam being intended to be interrupted 200mm length does not welds.
Its another side (i.e. the reverse side of tube panel) is then carried out symmetrical interval by tube panel turn-over again weld: each nickel of tube panel reverse side
The welding sequence of base band steel 2 is identical with the welding sequence of each Ni-based band steel in front；Weld single Ni-based band steel 2 time, all from
The centre of Ni-based band steel is welded to its two ends respectively, and uses uninterrupted welding manner, i.e. when welding every Ni-based band steel, all
Disposably the weld seam of Ni-based for whole piece band steel is all welded full；
Finally by tube panel turn-over again with by full for all welderings of the place of weldering in its front: the welding sequence of each Ni-based band steel is: first
No. five band steels 11 that welding is interrupted that have that will be located in tube panel centre position all welds and expire, and using the axis of No. five band steels 11 as
Axis of symmetry, the eight Ni-based band steels with welding interruption that then will be located in axis of symmetry both sides carry out the welding of symmetrical interval: will
No. five band steels 11 all weld full after, then No. seven band steels 9, No. nine band steels 15 of 13, No. three band steels will be welded successively and a band steel 7 is complete
Portion's weldering is full, and the most just complete the Ni-based band steel to tube panel front with welding interruption one takes turns welding；Weldering is taken turns the most again by one
Connecing and remaining also have the Ni-based band steel that welding is interrupted and carry out two and take turns alternately balanced welding full weld and connect, welding sequence is: No. six band steels
12,10, No. eight band steels 14 of No. four band steels and No. two band steels 8, now all Ni-based band steel in tube panel front the most all welds full；Single
The welding manner of the Ni-based band steel of root is: all weld to its two ends respectively from the centre of Ni-based band steel, until by Ni-based for whole piece band steel
All weldering is full.
The tube panel of the present invention have employed the welding manner at symmetrical interval, when welding No. five band steels 11, due to
Just start welding, so the temperature of No. five band steels 11 and the Ni-based pipe that is positioned at its both sides is room temperature, thus flat welding five
During steel 11, No. five band steels 11 and be positioned at the Ni-based pipe of its both sides substantially without deforming, after No. five band steels 11 have welded,
When again No. seven band steels 13 being welded, owing to centre is across two Ni-based pipes and No. six band steels 12 so that by welding five
Number band steel 11 and the heat that produces are not transferred on No. seven band steels 13, so when No. seven band steels 13 are welded, No. seven
The temperature of band steel 13 is almost similarly room temperature with the temperature of the Ni-based pipe being positioned at its both sides, it can be ensured that No. seven band steel 13 Hes
It is positioned at the Ni-based pipe of its both sides substantially without deforming, after No. seven band steels 13 have welded, then No. three band steels 9 is welded
When connecing, in like manner, it is ensured that No. three band steels 9 and be positioned at the Ni-based pipe of its both sides substantially without deforming, by that analogy, complete
Welding to nine Ni-based band steels, thus ensure whole tube panel in welding process substantially without deforming.Meanwhile, balanced welding
Connecing mode itself can also prevent Ni-based pipe and Ni-based band steel from deforming, because in the process being symmetrically welded to a certain extent
In, the deformation produced because of Ni-based band steel and the Ni-based pipe of side can be by the Ni-based band steel of opposite side and the change of Ni-based pipe generation
Shape is cancelled out each other, so can be further ensured that whole tube panel will not deform.It addition, the tube panel of the present invention is just welding it
During all Ni-based band steels in face, all have employed the symmetrical mode being interrupted welding, i.e. when welding every Ni-based band steel, be all from it
Middle respectively to two ends welding, and after the weld seam of every welding 200mm length, the weld seam being intended to be interrupted 200mm length does not welds,
After the weld seam of the 200mm length that Ni-based band steel is middle is soldered, the weld seam of 200mm length to be interrupted does not welds so that because of weldering
The heat connecing the weld seam of the 200mm length in the middle of Ni-based band steel and produce will be passed to the interruption of coupled 200mm length
Weld seam, the most fraction of energy is transferred into next section to be needed on the weld seam of 200mm length of welding, thus this section of 200mm length
Ni-based pipe and the Ni-based band steel of the weld seam both sides of degree have relatively low temperature, so when welding the weld seam of this section of 200mm length,
The Ni-based pipe of its both sides and Ni-based band steel are substantially without deforming, and by that analogy, complete the welding to nine Ni-based band steels, from
And ensure whole tube panel in welding process substantially without deforming.It addition, described welded seam and the length of intermittent weld
Degree is clearly by the length decision of Ni-based band steel and Ni-based pipe,.
Above-mentioned all of welding operation all uses manual electric arc welding to weld, it is contemplated that Ni-based band steel and Ni-based pipe fire check are inclined
To bigger characteristic, in cooling procedure, produce fire check to be able to be effectively prevented weld seam, need to use and nickel-base material phase
The weld heat input of coupling temperature between controlling, find through inventor's test of many times, when leading between cooling water control road in pipe
During temperature, the weld heat input that manual electric arc welding uses controls between 10-15KJ/cm, it is possible to be very well protected from weld seam
Producing fire check, the weld heat input that the present embodiment is used is 12KJ/cm.
In sum, using the Ni-based tube panel that the welding method of the present invention is welded, it will not deform and produce
Fire check, thus ensure that the dimension precision requirement of Ni-based tube panel, meanwhile, also reduce the amount of reprocessing of Ni-based tube panel, shorten
Production cycle of Ni-based tube panel and improve the quality of Ni-based tube panel.
Claims (5)
- The most Ni-based membrane panel welding method, comprises the following steps:First at least two Ni-based pipes (1) and at least one Ni-based band steel (2) are spaced one arc tube panel of composition or straight Tube panel；It is characterized in that: then at least two is set on tube panel for the anti-deformation tool (3) preventing tube panel from deforming；Then by tube panel as follows by corresponding with Ni-based pipe (1) for each Ni-based band steel (2) welding:First the one side to tube panel carries out the welding of symmetrical interval: the welding sequence of each Ni-based band steel (2) is: first welding is positioned at pipe That Ni-based band steel in screen centre position, and using the axis of this Ni-based band steel as axis of symmetry, then will be located in axis of symmetry both sides Ni-based band steel carry out the welding of symmetrical interval: after being i.e. soldered symmetrical Ni-based band steel, then when welding the Ni-based band steel of its both sides, be intended to It is spaced a Ni-based band steel not weld, just continues to weld next Ni-based band steel, until complete the Ni-based band steel in this face of tube panel One takes turns welding；After taking turns welding by one the most again, the most unwelded remaining Ni-based band steel is carried out in the middle of tube panel to both sides welding Two take turns and are alternately symmetrically welded, until all being welded by all Ni-based band steel in this face of tube panel；The welding side of single Ni-based band steel (2) Formula is: all weld to its two ends respectively from the centre of Ni-based band steel, and uses interruption welding manner, the most often welds certain length After weld seam, the weld seam being intended to be interrupted certain length does not welds；Then tube panel turn-over is carried out to its another side again the welding of symmetrical interval: the welding in each Ni-based band steel in this face of tube panel (2) is suitable Sequence is identical with the welding sequence of aforesaid each Ni-based band steel；When welding single Ni-based band steel (2), all from the centre of Ni-based band steel Weld to its two ends respectively, and use uninterrupted welding manner, i.e. when welding every Ni-based band steel, all disposable by whole piece nickel The weld seam of base band steel all welds full；Finally by tube panel turn-over again with by full for all welderings of the place of weldering in this face: the welding sequence of each Ni-based band steel (2) and single The welding manner of Ni-based band steel (2) is with the most identical to the welding in this face；Above-mentioned all of welding operation all uses manual electric arc welding to weld, and use weld heat input all 10-15KJ/cm it Between；In the whole welding process of tube panel, there is cooling water in remaining all Ni-based pipe (1) of tube panel in flowing always.
- Ni-based membrane panel welding method the most as claimed in claim 1, it is characterised in that: described anti-deformation tool (3) Including the holder (5) mutually removably connected and fixture (6), the shape of described holder (5) is fitted mutually with the shape of tube panel Should, two described holders (5) are just being respectively placed in the same position of tube panel along the direction being perpendicular to Ni-based pipe (1) axis On reverse side, the length of holder (5) is more than or equal to the width of tube panel, and the two ends of two holders (5) are respectively by an institute The fixture (6) stated connects fixing.
- Ni-based membrane panel welding method the most as claimed in claim 2, it is characterised in that: preapre for an unfavorable turn of events for two adjacent on tube panel Spacing distance between shape frock (3) is less than or equal to 2000mm, and two adjacent anti-deformation tools (3) are by least one Longitudinally fixed part (4) is fixing to be connected.
- Ni-based membrane panel welding method the most as claimed in claim 1, it is characterised in that: it is interrupted welding manner weldering using When connecing every Ni-based band steel (2), all centres from Ni-based band steel (2) are welded to its two ends respectively, often welding 150-250mm length Weld seam after, be intended to be interrupted 150-250mm length weld seam do not weld.
- Ni-based membrane panel welding method the most as claimed in claim 1, it is characterised in that: all Ni-based pipe (2) of tube panel All being serially connected by rubber tube is a pipe string, and one end of pipe string is water inlet end, and the other end is water side, is passed through from water inlet end Cooling water, makes cooling water flow out from water side after flowing through all of Ni-based pipe (2) again.
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| CN108326397A (en) * | 2018-02-02 | 2018-07-27 | 南通港华锅炉有限公司 | A kind of welding procedure of boiler dividing waterwall |
| CN108544061A (en) * | 2018-03-29 | 2018-09-18 | 上海锅炉厂有限公司 | A kind of Ni-based eccentric band steel is composed and laid out welder and welding procedure |
| CN110566995A (en) * | 2019-09-19 | 2019-12-13 | 哈尔滨锅炉厂有限责任公司 | Sealing structure for nozzle tube panel of vertical water wall |
| CN112856477A (en) * | 2021-01-18 | 2021-05-28 | 哈电发电设备国家工程研究中心有限公司 | Water-cooled wall internal thread tube panel and processing method thereof |
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