CN106141511A - A kind of ultra supercritical large-sized boiler steel pipe membrane wall manufacturing process - Google Patents
A kind of ultra supercritical large-sized boiler steel pipe membrane wall manufacturing process Download PDFInfo
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- CN106141511A CN106141511A CN201510194903.2A CN201510194903A CN106141511A CN 106141511 A CN106141511 A CN 106141511A CN 201510194903 A CN201510194903 A CN 201510194903A CN 106141511 A CN106141511 A CN 106141511A
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Abstract
The manufacturing process of a kind of ultra supercritical large-sized boiler steel pipe membrane wall, comprises the following steps: 1), the choosing of welding material of composing and laying out: 2), the choosing of welding conditions of composing and laying out；3), membrane wall perforate assembles；4), engineer testing.The present invention, bank of tubes carries out heat treatment before Panel Bending, it is ensured that the adnexa such as welding equipment Kong Guan after the quality bank of tubes Panel Bending of rows of bending tubes, then carries out finished heat treatment.Tested by bank of tubes manufacture, made sufficient preparation for manufacturing the membrane wall of super (super-) critical boiler.SA213-T22 and SA213-T23 pipe is as Mayari, and it is relatively big that material has certain hardenability and leg of composing and laying out to connect weld stress, for avoiding welding cold crack, uses preheating temperature 150 DEG C before weldering；For ensureing Panel Bending quality, postwelding uses 720 ± 10 DEG C of temper.
Description
Technical field
The present invention relates to the manufacturing process of a kind of ultra supercritical large-sized boiler steel pipe membrane wall, belong to large thermal power plant and run control technical field.
Background technology
Along with station boiler is to Large Copacity, high parameter development trend, the carbon steel pipe of routine, 1Cr-0.5Mo steel pipe can not meet the requirement of film-type tube bank operating temperature, and replacing will be 2.25Cr-1Mo (SA213-T22) steel pipe and 2.25Cr-1.6W-Nb-V (SA213-T23) steel pipe.My company have accumulated the welding experience of the film-type tube bank that SA213-T22 steel pipe (U.S.'s CFB boiler) and SA213-T23 steel pipe (Kingsoft CFB boiler) use Lincoln weld to be welded from the ASME boiler product of subpackage.But the bank of tubes that this bi-material is welded is flat raft, without bank of tubes open-celled structure, also without Panel Bending structure, for adapting to the needs of station boiler manufacture development, exploitation is needed to manufacture and design the new technology that super (super-) critical seamless steel tube for boiler membrane wall manufactures.
Summary of the invention
For problem above, it is an object of the invention to provide a kind of ultra supercritical large-sized boiler steel pipe membrane wall manufacturing process, it is to use SA213-T22 pipe, its nominal composition is 2.25Cr-1Mo, and SA213-T23 pipe is to reduce phosphorus content on the basis of SA213-T22, add the alloying elements such as B, W, V to improve its comprehensive mechanical performance, make SA213-T23 pipe have good plasticity and impact property in the condition of high temperature.
The technical scheme is that and be accomplished by: the manufacturing process of a kind of ultra supercritical large-sized boiler steel pipe membrane wall, comprise the following steps:
1 ),Composing and laying out the choosing of welding material: according to chemical composition and the mechanical performance of SA213-T22 and SA213-T23 pipe, the chemical composition of the welding material that SA213-T22 and SA213-T23 pipe is composed and laid out with SA387Gr22 band steel is shown in Table 1:
Chemical composition (%) table 1 of welding material
2), the choosing of welding conditions of composing and laying out: SA213-T22 and SA213-T23 pipe is as Mayari, and it is relatively big that material has certain hardenability and leg of composing and laying out to connect weld stress, for avoiding welding cold crack, uses preheating temperature 150 DEG C before weldering；For ensureing Panel Bending quality, postwelding uses 720 ± 10 DEG C of temper；Welding conditions φ 2.0 welding wire routinely；
3), membrane wall perforate assembles: the process that membrane wall perforate assembles routinely is carried out；
4), engineer testing: molecular membrane wall is managed for SA213-T23, if bank of tubes become drained after need to carry out perforate, welding equipment hole pipe, then bank of tubes must carry out twice heat treatment: i.e. bank of tubes carries out heat treatment before Panel Bending, it is ensured that the quality of rows of bending tubes；After bank of tubes Panel Bending, the adnexa such as welding equipment Kong Guan, then carries out finished heat treatment.
The present invention, SA213-T23 manages molecular membrane wall, and bank of tubes carries out heat treatment before Panel Bending, it is ensured that the adnexa such as welding equipment Kong Guan after the quality bank of tubes Panel Bending of rows of bending tubes, then carries out finished heat treatment.Tested by bank of tubes manufacture, made sufficient preparation for manufacturing the membrane wall of super (super-) critical boiler.SA213-T22 and SA213-T23 pipe is as Mayari, and it is relatively big that material has certain hardenability and leg of composing and laying out to connect weld stress, for avoiding welding cold crack, uses preheating temperature 150 DEG C before weldering；For ensureing Panel Bending quality, postwelding uses 720 ± 10 DEG C of temper.
Detailed description of the invention
The manufacturing process of a kind of ultra supercritical large-sized boiler steel pipe membrane wall, comprises the following steps:
1 、Composing and laying out the choosing of welding material: according to chemical composition and the mechanical performance of SA213-T22 and SA213-T23 pipe, the chemical composition of the welding material that SA213-T22 and SA213-T23 pipe is composed and laid out with SA387Gr22 band steel is shown in Table 1:
Chemical composition (%) table 1 of welding material
2, choosing of welding conditions of composing and laying out: SA213-T22 and SA213-T23 pipe is as Mayari, and it is relatively big that material has certain hardenability and leg of composing and laying out to connect weld stress, for avoiding welding cold crack, uses preheating temperature 150 DEG C before weldering；For ensureing Panel Bending quality, postwelding uses 720 ± 10 DEG C of temper；Welding conditions φ 2.0 welding wire routinely；
3, membrane wall perforate assembles: the process that membrane wall perforate assembles routinely is carried out；
4, engineer testing: molecular membrane wall is managed for SA213-T23, if bank of tubes become drained after need to carry out perforate, welding equipment hole pipe, then bank of tubes must carry out twice heat treatment: i.e. bank of tubes carries out heat treatment before Panel Bending, it is ensured that the quality of rows of bending tubes；After bank of tubes Panel Bending, the adnexa such as welding equipment Kong Guan, then carries out finished heat treatment.
Claims (1)
1. a manufacturing process for ultra supercritical large-sized boiler steel pipe membrane wall, comprises the following steps:
1), the choosing of welding material of composing and laying out: according to chemical composition and the mechanical performance of SA213-T22 and SA213-T23 pipe, the chemical composition of the welding material that SA213-T22 and SA213-T23 pipe is composed and laid out with SA387Gr22 band steel is shown in Table 1:
Chemical composition (%) table 1 of welding material
2), the choosing of welding conditions of composing and laying out: SA213-T22 and SA213-T23 pipe is as Mayari, and it is relatively big that material has certain hardenability and leg of composing and laying out to connect weld stress, for avoiding welding cold crack, uses preheating temperature 150 DEG C before weldering；For ensureing Panel Bending quality, postwelding uses 720 ± 10 DEG C of temper；Welding conditions φ 2.0 welding wire routinely；
3), membrane wall perforate assembles: the process that membrane wall perforate assembles routinely is carried out；
4), engineer testing: molecular membrane wall is managed for SA213-T23, if bank of tubes become drained after need to carry out perforate, welding equipment hole pipe, then bank of tubes must carry out twice heat treatment: i.e. bank of tubes carries out heat treatment before Panel Bending, it is ensured that the quality of rows of bending tubes；After bank of tubes Panel Bending, the adnexa such as welding equipment Kong Guan, then carries out finished heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510194903.2A CN106141511A (en) | 2015-04-23 | 2015-04-23 | A kind of ultra supercritical large-sized boiler steel pipe membrane wall manufacturing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510194903.2A CN106141511A (en) | 2015-04-23 | 2015-04-23 | A kind of ultra supercritical large-sized boiler steel pipe membrane wall manufacturing process |
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| CN106141511A true CN106141511A (en) | 2016-11-23 |
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| CN201510194903.2A Pending CN106141511A (en) | 2015-04-23 | 2015-04-23 | A kind of ultra supercritical large-sized boiler steel pipe membrane wall manufacturing process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107738039A (en) * | 2017-10-16 | 2018-02-27 | 山东电力建设第工程公司 | A kind of steel film mode tube screen seal weld method |
| CN108193044A (en) * | 2018-02-09 | 2018-06-22 | 阿美科福斯特惠勒动力机械有限公司 | A kind of membrane wall pipe row welding is in line preheating and rear heat-treating machine |
| CN110202035A (en) * | 2019-07-16 | 2019-09-06 | 江苏汇能锅炉有限公司 | A kind of ultra-supercritical boiler heating surface tube panel Panel Bending plumber's skill |
| CN115365766A (en) * | 2022-08-20 | 2022-11-22 | 欧萨斯能源环境设备(南京)有限公司 | Manufacturing process of waste heat boiler wall and tube panel |
-
2015
- 2015-04-23 CN CN201510194903.2A patent/CN106141511A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN107738039A (en) * | 2017-10-16 | 2018-02-27 | 山东电力建设第工程公司 | A kind of steel film mode tube screen seal weld method |
| CN107738039B (en) * | 2017-10-16 | 2020-08-14 | 山东电力建设第一工程公司 | Steel membrane type tube panel sealing welding method |
| CN108193044A (en) * | 2018-02-09 | 2018-06-22 | 阿美科福斯特惠勒动力机械有限公司 | A kind of membrane wall pipe row welding is in line preheating and rear heat-treating machine |
| CN110202035A (en) * | 2019-07-16 | 2019-09-06 | 江苏汇能锅炉有限公司 | A kind of ultra-supercritical boiler heating surface tube panel Panel Bending plumber's skill |
| CN115365766A (en) * | 2022-08-20 | 2022-11-22 | 欧萨斯能源环境设备(南京)有限公司 | Manufacturing process of waste heat boiler wall and tube panel |
| CN115365766B (en) * | 2022-08-20 | 2024-05-07 | 欧萨斯能源环境设备(南京)有限公司 | Waste heat boiler wall and tube panel manufacturing process |
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Application publication date: 20161123 |