CN101913060A - Method for machining membrane type water-cooled walls in boilers - Google Patents
Method for machining membrane type water-cooled walls in boilers Download PDFInfo
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- CN101913060A CN101913060A CN 201010244642 CN201010244642A CN101913060A CN 101913060 A CN101913060 A CN 101913060A CN 201010244642 CN201010244642 CN 201010244642 CN 201010244642 A CN201010244642 A CN 201010244642A CN 101913060 A CN101913060 A CN 101913060A
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- bend
- machining
- boilers
- band steel
- type water
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Abstract
The invention discloses a method for machining membrane type water-cooled walls in boilers, comprising the following steps of: (1) sleeving materials, compiling a splicing list and listing the quantity of required bent pipes; (2) blanking and simultaneously carrying out mark transplantation on the materials; (3) making the bent pipes, wherein both ends of each bent pipe are not chamfered; (4) forming a small-pipe screen by using straight pipes and flat steel; (5) forming a large screen by using the small-pipe screen and the bent pipes, wherein when the large screen is assembled, the flat steel is welded with the straight pipes and welded to the elbow bending lines of the bent pipes; and (6) carrying out repair welding on the flat steel at the elbows of the bent pipes. The method for machining the membrane type water-cooled walls in the boilers has the advantages of simple machining process, reduced investment cost, greatly improved pipe screen quality, no butt joint requirement and no welded junctions, and greatly shortens the machining periods of products with short delivery dates.
Description
Technical field
The present invention relates to a kind of processing method of membrane type water-cooled walls in boilers.
Background technology
The internal structure complexity of boiler, have the hole of various effects in the membrane type water-cooled walls in boilers, for the flat bend pipe hole in the fin panel casing, traditional processing method is: make tube panel earlier, open the bend pipe hole again on tube panel, remove bend pipe hole place's straight tube and band steel, when cutting band steel again, should also be noted that not injure pipe on the limit, and then will bend good hole pipe in advance and be docked on the tube panel, and then logical ball, film making and repair welding pipe bent position band steel.Owing to be small-bore butt joint, need full argon arc welding, no doubt welding quality level and the weld bond quality requirement to the welder is also higher.Carry out the RT Non-Destructive Testing after having welded, when making in batch, need reprocess, and Non-Destructive Testing also needs the regular hour, so not only increased cost of investment, but also reduced production efficiency.
Summary of the invention
Technical problem to be solved by this invention provides the processing method of the simple membrane type water-cooled walls in boilers of a kind of processing technology.
In order to solve the problems of the technologies described above, technical scheme of the present invention is: the processing method of membrane type water-cooled walls in boilers comprises following processing step:
(1) compose and lay out inventory and list the radical that needs bend pipe of jacking and establishment;
(2) blanking, the material transplanting that should make marks simultaneously;
(3) bend bend pipe, the bend pipe two ends are chamfering not;
(4) straight tube and band steel are formed little tube panel;
(5) little tube panel and bend pipe recomposition large-size screen monitors, when being assembled into large-size screen monitors, band steel and straight tube welding, band steel is welded to a curved line place of bend, and slices off the band steel at bend place;
(6) band steel at repair welding bend place.
Advantage of the present invention is: the processing method of above-mentioned membrane type water-cooled walls in boilers, and processing technology is simple, and need not butt joint does not have weld bond, when reducing cost of investment, has improved the quality of tube panel greatly, for tight product at delivery date, has shortened the process-cycle greatly.
Description of drawings
The present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of membrane type water-cooled walls in boilers.
Among the figure: 1, bend pipe, 2, straight tube, 3, band steel, 4 bends.
The specific embodiment
As shown in Figure 1, be example with the back cigarette well side wall in the boiler, illustrate that processing step is as follows:
(1) jacking shrinks according to pipe percentage elongation and welding, and the 50mm surplus is respectively put at the pipe two ends, and compose and lay out inventory and list four of radicals that need bend pipe 1 of establishment;
(2) straight tube 2 is pressed material list size line and sawing, the material transplanting that should make marks simultaneously;
(3) make bend pipe 1, bend pipe 1 two ends are chamfering not;
(4) membrane wall submerged arc welding machine (1600 * 4) is formed little tube panel on straight tube 2 and the band steel 3;
(5) little tube panel and bend pipe 1 are gone up the big tube panel of recomposition at submerged arc membrane wall welding machine (3200 * 4), when being assembled into large-size screen monitors, and band steel 3 and straight tube 2 welding, band steel 3 is welded to a curved line place of bend 4, and slices off the band steel 3 at bend 4 places.
(6) band steel 3 at repair welding bend 4 places.
The foregoing description is only for the usefulness that the present invention is described; and be not to be limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make various variations and modification, so all technical schemes that are equal to also should belong to protection category of the present invention.
Claims (1)
1. the processing method of membrane type water-cooled walls in boilers is characterized in that: comprise following processing step:
(1) compose and lay out inventory and list the radical that needs bend pipe of jacking and establishment;
(2) blanking, the material transplanting that should make marks simultaneously;
(3) bend bend pipe, the bend pipe two ends are chamfering not;
(4) straight tube and band steel are formed little tube panel;
(5) little tube panel and bend pipe recomposition large-size screen monitors, when being assembled into large-size screen monitors, band steel and straight tube welding, band steel is welded to a curved line place of bend, and slices off the band steel at bend place;
(6) band steel at repair welding bend place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010244642 CN101913060A (en) | 2010-08-04 | 2010-08-04 | Method for machining membrane type water-cooled walls in boilers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010244642 CN101913060A (en) | 2010-08-04 | 2010-08-04 | Method for machining membrane type water-cooled walls in boilers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101913060A true CN101913060A (en) | 2010-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010244642 Pending CN101913060A (en) | 2010-08-04 | 2010-08-04 | Method for machining membrane type water-cooled walls in boilers |
Country Status (1)
| Country | Link |
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| CN (1) | CN101913060A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589002A (en) * | 2012-03-30 | 2012-07-18 | 上海锅炉厂有限公司 | Boiler water cooled wall |
| CN105026523A (en) * | 2013-03-07 | 2015-11-04 | 斗山重工业株式会社 | Method for producing membrane wall, pipe bending device for manufacturing transfer duct and method for manufacturing transfer duct using same |
| CN110566994A (en) * | 2019-09-20 | 2019-12-13 | 哈尔滨锅炉厂有限责任公司 | supercritical carbon dioxide boiler furnace |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6055943A (en) * | 1997-09-25 | 2000-05-02 | Anthony-Ross Company | Air port casting |
| EP1493968A2 (en) * | 2003-07-04 | 2005-01-05 | VISSER & SMIT HANAB B.V. | Membrane wall |
| CN1948836A (en) * | 2006-11-09 | 2007-04-18 | 上海锅炉厂有限公司 | Manufacturing technology of water cooling jacket of boiler four angle burning, screw lifting water cooling wall burner region |
| WO2008113369A1 (en) * | 2007-03-16 | 2008-09-25 | Standardkessel Gmbh | Method for the production of a membrane wall |
| CN101774093A (en) * | 2009-10-21 | 2010-07-14 | 上海锅炉厂有限公司 | Method for reducing welding deformation of tubular cylindrical film-type water-cooled wall cylinder of gasification furnace |
-
2010
- 2010-08-04 CN CN 201010244642 patent/CN101913060A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6055943A (en) * | 1997-09-25 | 2000-05-02 | Anthony-Ross Company | Air port casting |
| EP1493968A2 (en) * | 2003-07-04 | 2005-01-05 | VISSER & SMIT HANAB B.V. | Membrane wall |
| CN1948836A (en) * | 2006-11-09 | 2007-04-18 | 上海锅炉厂有限公司 | Manufacturing technology of water cooling jacket of boiler four angle burning, screw lifting water cooling wall burner region |
| WO2008113369A1 (en) * | 2007-03-16 | 2008-09-25 | Standardkessel Gmbh | Method for the production of a membrane wall |
| CN101774093A (en) * | 2009-10-21 | 2010-07-14 | 上海锅炉厂有限公司 | Method for reducing welding deformation of tubular cylindrical film-type water-cooled wall cylinder of gasification furnace |
Non-Patent Citations (2)
| Title |
|---|
| 《发电设备》 19990228 张华波等 锅炉膜式水冷壁的制造技术和质量保证 8-10，30 1 , 第1期 2 * |
| 《新技术新工艺》 20050531 张宪等 电站锅炉水冷壁脉冲GMAW双面焊接工艺研究 51-52 1 , 第5期 2 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589002A (en) * | 2012-03-30 | 2012-07-18 | 上海锅炉厂有限公司 | Boiler water cooled wall |
| CN105026523A (en) * | 2013-03-07 | 2015-11-04 | 斗山重工业株式会社 | Method for producing membrane wall, pipe bending device for manufacturing transfer duct and method for manufacturing transfer duct using same |
| CN110566994A (en) * | 2019-09-20 | 2019-12-13 | 哈尔滨锅炉厂有限责任公司 | supercritical carbon dioxide boiler furnace |
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Open date: 20101215 |