CN105135469A - Super-supercritical boiler water wall tube bundle - Google Patents
Super-supercritical boiler water wall tube bundle Download PDFInfo
- Publication number
- CN105135469A CN105135469A CN201510666282.3A CN201510666282A CN105135469A CN 105135469 A CN105135469 A CN 105135469A CN 201510666282 A CN201510666282 A CN 201510666282A CN 105135469 A CN105135469 A CN 105135469A
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- China
- Prior art keywords
- fin
- pipe
- water
- cooling wall
- tube bundle
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- 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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Abstract
The invention discloses a super-supercritical boiler water wall tube bundle which is spliced by connecting tubes 2 and fins in a welding mode; the water wall tube is made of SA213 T91 or SA213 T92; the fins on both sides of the tube bundle are made of SA387 Gr22CL1; the fins 1 in the rest positions of the tube bundle are made of SA387 Gr91; and the fins on the two sides are subjected to spray coating.
Description
Technical field
The present invention relates to a kind of ultra-supercritical boiler water-cooling wall pipe row.
Background technology
Due to the further raising of more efficient ultra-supercritical boiler water-cooling wall design pressure, water-cooling wall metal temperature will reach more than 570 DEG C, so need to select SA213T91 small-bore pipe and SA387Gr91 band steel as fin to manufacture water-cooling wall assembly (or needing to select SA213T92 small-bore pipe and SA387Gr91 band steel as fin to manufacture water-cooling wall assembly).
When selecting SA213T91 small-bore pipe and SA387Gr91 fin to manufacture water-cooling wall assembly, when factory manufactures, the longitudinal seam between water screen tube row is welding between SA213T91 small-bore pipe with SA387Gr91 fin, needs post weld heat treatment.
When Installation in Plant, because the post weld heat treatment (730-760 DEG C) of longitudinal seam between water screen tube row is very difficult, (fin between every 2 groups of water screen tubes row and fin longitudinal seam have 15-20 rice long, post weld heat treatment workload is very large), so propose: when Installation in Plant, need two fins of the water screen tube row ragged edge welding longitudinal seam, use SA387Gr22CL1 fin to replace SA387Gr91 fin.
Ragged edge 2 fins of the water-cooling wall of the T91 small-bore pipe that boiler factory manufactures and SA387Gr91 fin are SA387Gr22CL1, and this water-cooling wall assembly carries out whole screen post weld heat treatment in boiler factory.When Installation in Plant water-cooling wall, use B3 wlding welding SA387Gr22CL1 fin longitudinal seam, do not need to carry out post weld heat treatment.In order to ensure that the antioxygenic property of SA387Gr22CL1 fin meets the demands, in power plant, the SA387Gr22CL1 fin after welding is sprayed.
Summary of the invention
In order to realize above-mentioned technical conceive, technical scheme of the present invention there is provided a kind of ultra-supercritical boiler water-cooling wall pipe row.
Technical scheme of the present invention is: a kind of ultra-supercritical boiler water-cooling wall pipe row, and the connecting method of described water screen tube row is that pipe 2 is connected with fin, is connected between pipe with fin with welding manner; Water-cooling wall pipe material therefor is SA213T91 or SA213T92, and pipe row both sides fin 3 material is SA387Gr22CL1, and all the other position fin 1 materials arranged by pipe is SA387Gr91; And both sides fin is sprayed.
The present invention also has following beneficial effect: owing to adopting SA213T91(or SA213T92) small-bore pipe and SA387Gr91 fin manufacture water-cooling wall, the requirement of strength of the higher design pressure of more efficient ultra-supercritical boiler water-cooling wall and 570 DEG C of metal temperatures can be met, adopt SA387Gr22CL1 band steel to manufacture water screen tube row both sides band steel simultaneously, the post weld heat treatment of mounting site water-cooling wall butt welded joint can be reduced.Scheme can solve a manufacture difficult problem for more efficient ultra-supercritical boiler water-cooling wall.
Accompanying drawing explanation
Fig. 1 is water screen tube row splicing construction figure.
Description of reference numerals: 1.SA387Gr91 band steel, 2.SA213T91(or SA213T92) small-bore pipe,
3.SA387Gr22CL1(sprays), 4. factory's weld seam, 5. building site weld seam.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment
Technical scheme of the present invention provides one more efficient ultra-supercritical boiler water-cooling wall design:
1. the connecting method of this water screen tube row is that pipe is connected with fin, is connected between pipe with fin with welding manner.Structure as shown in Figure 1.
2. this water-cooling wall pipe material therefor is SA213T91(or selects SA213T92), pipe row both sides fin material is SA387Gr22CL1, and all the other position fin material arranged by pipe is SA387Gr91.
3. weld SA387Gr22CL1 fin respectively in the both sides of pipe row, and both sides fin is sprayed; When Installation in Plant water-cooling wall, be the banjo fixing butt jointing between SA387Gr22CL1 fin, do not need post weld heat treatment.
Be in 600MW, 36.5MPa, 705 DEG C/723 DEG C ultra supercritical tower boilers in parameter, adopt Φ 32 × 8SA213T91 small-bore pipe to manufacture vertical section water-cooling wall.
Claims (1)
1. a ultra-supercritical boiler water-cooling wall pipe row, is characterized in that: the connecting method of described water screen tube row is that pipe (2) and fin (1,3) connect, and is connected between pipe with fin with welding manner; Water-cooling wall pipe material therefor is SA213T91 or SA213T92, and pipe row both sides fin (3) material is SA387Gr22CL1, and all the other position fin (1) materials arranged by pipe is SA387Gr91; And both sides fin is sprayed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510666282.3A CN105135469A (en) | 2015-10-15 | 2015-10-15 | Super-supercritical boiler water wall tube bundle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510666282.3A CN105135469A (en) | 2015-10-15 | 2015-10-15 | Super-supercritical boiler water wall tube bundle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105135469A true CN105135469A (en) | 2015-12-09 |
Family
ID=54720923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510666282.3A Pending CN105135469A (en) | 2015-10-15 | 2015-10-15 | Super-supercritical boiler water wall tube bundle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105135469A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017187A (en) * | 2016-06-01 | 2016-10-12 | 哈尔滨锅炉厂有限责任公司 | Novel finned tube water wall applied to ultra-supercritical unit boiler |
| CN106378517A (en) * | 2016-11-30 | 2017-02-08 | 东方电气集团东方锅炉股份有限公司 | Welding technology of flat steel fillet welds of membrane wall tube panel different steel joint position |
Citations (5)
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|---|---|---|---|---|
| EP1985919A2 (en) * | 2006-12-22 | 2008-10-29 | Hitachi Power Europe GmbH | Surface-blasted steam generator parts or power plant components |
| CN102589002A (en) * | 2012-03-30 | 2012-07-18 | 上海锅炉厂有限公司 | Boiler water cooled wall |
| CN104014929A (en) * | 2014-06-19 | 2014-09-03 | 西安特种设备检验检测院 | Dissimilar metal welding method for martensite heat-resisting steel and high-temperature nickel base alloy |
| CN204419282U (en) * | 2014-12-31 | 2015-06-24 | 冯伟忠 | A kind of high temperature Subcritical Units |
| CN205137520U (en) * | 2015-10-15 | 2016-04-06 | 上海锅炉厂有限公司 | Ultra supercritical boiler water cold wall pipe row |
-
2015
- 2015-10-15 CN CN201510666282.3A patent/CN105135469A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1985919A2 (en) * | 2006-12-22 | 2008-10-29 | Hitachi Power Europe GmbH | Surface-blasted steam generator parts or power plant components |
| CN102589002A (en) * | 2012-03-30 | 2012-07-18 | 上海锅炉厂有限公司 | Boiler water cooled wall |
| CN104014929A (en) * | 2014-06-19 | 2014-09-03 | 西安特种设备检验检测院 | Dissimilar metal welding method for martensite heat-resisting steel and high-temperature nickel base alloy |
| CN204419282U (en) * | 2014-12-31 | 2015-06-24 | 冯伟忠 | A kind of high temperature Subcritical Units |
| CN205137520U (en) * | 2015-10-15 | 2016-04-06 | 上海锅炉厂有限公司 | Ultra supercritical boiler water cold wall pipe row |
Non-Patent Citations (3)
| Title |
|---|
| 抚顺市锅炉压力容器检验研究所: "《焊工培训指南：锅炉压力容器的焊接》", 30 December 1986, 中国农业机械出版社 * |
| 赵伟珍等: "700℃先进超超临界锅炉SA-213T92水冷壁埋弧拼排焊工艺研究", 《锅炉技术》 * |
| 黎世斌等: "超临界锅炉水冷壁管焊缝泄漏原因的分析", 《江西电力职业技术学院学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106017187A (en) * | 2016-06-01 | 2016-10-12 | 哈尔滨锅炉厂有限责任公司 | Novel finned tube water wall applied to ultra-supercritical unit boiler |
| CN106378517A (en) * | 2016-11-30 | 2017-02-08 | 东方电气集团东方锅炉股份有限公司 | Welding technology of flat steel fillet welds of membrane wall tube panel different steel joint position |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |