CN106051740A - Superheater of 650 DEG C advanced ultra-supercritical unit boiler - Google Patents
Superheater of 650 DEG C advanced ultra-supercritical unit boiler Download PDFInfo
- Publication number
- CN106051740A CN106051740A CN201610381283.8A CN201610381283A CN106051740A CN 106051740 A CN106051740 A CN 106051740A CN 201610381283 A CN201610381283 A CN 201610381283A CN 106051740 A CN106051740 A CN 106051740A
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- CN
- China
- Prior art keywords
- superheater
- weight
- parts
- sanicro25
- cobalt
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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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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G3/00—Steam superheaters characterised by constructional features; Details of component parts thereof
- F22G3/001—Steam tube arrangements not dependent of location
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/44—Ferrous alloys, e.g. steel alloys containing chromium with nickel with molybdenum or tungsten
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/52—Ferrous alloys, e.g. steel alloys containing chromium with nickel with cobalt
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Provided is a superheater of a 650 DEG C advanced ultra-supercritical unit boiler. With the continuous improvement of boiler parameters of an existing unit superheater, the performance and the workability of existing materials cannot meet the requirements. The superheater of the 650 DEG C advanced ultra-supercritical unit boiler comprises a first superheater heating face pipe panel (1) which is connected with a superheater header (3) through header pipe connectors (2). The first superheater heating face pipe panel is welded to a second superheater heating face pipe panel (4) through a V-type groove. The superheater header is made of a Sanicro25 large-diameter stainless steel pipe; the nominal diameter of the large-diameter stainless pipe is larger than 100 mm; the header pipe connectors are made of Sanicro25 small-diameter stainless steel pipes; the nominal diameter of the small-diameter stainless steel pipes is smaller than 100 mm; and the superheater heating face pipe panels are made of Sanicro25 and 18Cr stainless steel. The superheater of the 650 DEG C advanced ultra-supercritical unit boiler is used for increasing the main steam temperature and reheat steam temperature of a thermal power generating unit.
Description
Technical field:
The present invention relates to the superheater of a kind of 650 DEG C of advanced Boiler of Ultra-supercritical Units.
Background technology:
Along with China produces and the improving constantly and progressive of living standard, increasing to the demand of electric power, simultaneously to environmental protection
More and more higher with the requirement controlling disposal of pollutants；Actively development is efficient, energy-conservation, Large Copacity, clean environmental protection, elder generation that reliability is high
Enter ultra supercritical (A-USC) thermal power generation unit imperative；From the point of view of technically, improve fired power generating unit main steam temperature and
Reheat steam temperature is the most effective approach improving its thermal efficiency, is also the research and development direction of thermoelectricity technology core in future.
At present, Laiwu, Huaneng Group power plant is the boiler that current world pressure is maximum, temperature is the highest, efficiency is the highest, vapor (steam) temperature
Being 605/623/623 DEG C, gross coal consumption rate is 256.16 grams of every kilowatt hours；Compared with ripe unit, A-USC technology is at generating dress
Difference in standby layout is little, but material needs to tolerate higher temperature and bigger pressure, simultaneously to New-type boiler material portion
Part (especially boiler header) requires the strictest；Existing unit superheater surface majority uses 18Cr and HR3C rustless steel
Manufacturing, along with improving constantly of boiler parameter, current material performance or machinability will be unable to meet requirement.
Summary of the invention:
It is an object of the invention to provide the superheater of a kind of 650 DEG C of advanced Boiler of Ultra-supercritical Units.
Above-mentioned purpose is realized by following technical scheme:
The superheater of a kind of 650 DEG C of advanced Boiler of Ultra-supercritical Units, its composition includes: superheater surface tube panel one, described
Superheater surface tube panel one be connected with superheater header by header pipe joint, described superheater surface tube panel one is logical
Crossing double V-groove to weld with superheater surface tube panel two, described superheater header uses Sanicro25 large-caliber stainless steel pipe
Manufacturing, the nominal diameter of described Sanicro25 large aperture stainless steel tube is more than 100mm, and described header pipe joint uses
Sanicro25 small-bore stainless steel tube manufacture, the nominal diameter of the small-bore stainless steel tube of described Sanicro25 is little and 100mm,
Described superheater surface tube panel uses Sanicro25 Yu 18Cr rustless steel to manufacture.
The superheater of 650 DEG C of described advanced Boiler of Ultra-supercritical Units, the metallographic structure of described Sanicro25 is difficult to understand
Family name's body, alloying component beyond ferrite composition include chromium, nickel, tungsten, cobalt, the parts by weight of described chromium be 21.5 ~ 23.5%,
The parts by weight of described nickel are 23.5 ~ 26.5%, the parts by weight of described tungsten are 2.0 ~ 4.0%, the weight portion of described cobalt
Number is 1.0-2.0%, and remaining is ferrum.
The superheater of 650 DEG C of described advanced Boiler of Ultra-supercritical Units, the metallographic structure of described Sanicro25 is difficult to understand
Family name's body, wherein beyond ferrite alloying component composition include chromium, nickel, tungsten, cobalt, the parts by weight of described chromium be 21.5%, institute
The parts by weight of the nickel stated are 23.5%, the parts by weight of described tungsten are 2.0%, the parts by weight of described cobalt are 1.0%, its
Yu Weitie.
The superheater of 650 DEG C of described advanced Boiler of Ultra-supercritical Units, in described Sanicro25 beyond ferrite
Alloying component composition include chromium, nickel, tungsten, cobalt, the parts by weight of described chromium be 23.5%, the parts by weight of described nickel be
26.5%, the parts by weight of described tungsten be 4.0%, the parts by weight of described cobalt be 2.0%, remaining is ferrum.
The superheater of 650 DEG C of described advanced Boiler of Ultra-supercritical Units, in described Sanicro25 beyond ferrite
Alloying component composition include chromium, nickel, tungsten, cobalt, the parts by weight of described chromium be 22.5%, the parts by weight of described nickel be
25%, the parts by weight of described tungsten be 3%, the parts by weight of described cobalt be 1.5%, remaining is ferrum.
Beneficial effects of the present invention:
The present invention is in order to ensure the safety of 650 DEG C of advanced Boiler of Ultra-supercritical Unit superheaters and reduce the manufacture difficulty of superheater
Degree, present invention Sanicro25 replaces the HR3C material that tradition is ripe to manufacture superheater surface tube panel, uses simultaneously
Sanicro25 manufactures boiler header and header pipe joint, and the Sanicro25 material of high intensity can effectively reduce wall
Thickness, can meet again new material superheater and run safely and reliably under surpassing 650 DEG C of steam parameters.
Present invention is mainly applied to the superheater of a kind of 650 DEG C of advanced Boiler of Ultra-supercritical Units, material involved in the present invention
Material has high-temperature behavior, processing performance and the economy of excellence.
Boiler of Ultra-supercritical Unit in Boiler of Ultra-supercritical Unit superheater in the present invention uses π type stove or tower
Stove.
Accompanying drawing illustrates:
Accompanying drawing 1 is the structural representation that the present invention is applied to π type boiler.
Accompanying drawing 2 is the partial enlarged drawing of accompanying drawing 1.
Accompanying drawing 3 is the structural representation that the present invention is applied to tower boiler.
Accompanying drawing 4 is the partial enlarged drawing of accompanying drawing 3.
Detailed description of the invention:
Embodiment 1:
The superheater of a kind of 650 DEG C of advanced Boiler of Ultra-supercritical Units, its composition includes: superheater surface tube panel 1, described
Superheater surface tube panel one be connected with superheater header 3 by header pipe joint 2, described superheater surface tube panel one
Being welded with superheater surface tube panel 24 by double V-groove, described superheater header uses Sanicro25 heavy caliber stainless
Steel pipe manufactures, and the nominal diameter of described Sanicro25 large aperture stainless steel tube is more than 100mm, and described header pipe joint is adopted
With Sanicro25 small-bore stainless steel tube manufacture, the nominal diameter of the small-bore stainless steel tube of described Sanicro25 little with
100mm, described superheater surface tube panel uses Sanicro25 Yu 18Cr rustless steel to manufacture.
Embodiment 2:
According to the superheater of 650 DEG C of advanced Boiler of Ultra-supercritical Units described in embodiment 1, the metallographic of described Sanicro25
It is organized as austenite, the alloying component composition beyond ferrite includes that chromium, nickel, tungsten, cobalt, the parts by weight of described chromium are
21.5 ~ 23.5%, the parts by weight of described nickel be 23.5 ~ 26.5%, the parts by weight of described tungsten be 2.0 ~ 4.0%, described
The parts by weight of cobalt are 1.0-2.0%, and remaining is ferrum.
Embodiment 3:
According to the superheater of 650 DEG C of advanced Boiler of Ultra-supercritical Units described in embodiment 2, the metallographic of described Sanicro25
Being organized as austenite, wherein the alloying component composition beyond ferrite includes that chromium, nickel, tungsten, cobalt, the parts by weight of described chromium are
21.5%, the parts by weight of described nickel be 23.5%, the parts by weight of described tungsten be 2.0%, the parts by weight of described cobalt be
1.0%, remaining is ferrum.
Embodiment 4:
According to the superheater of 650 DEG C of advanced Boiler of Ultra-supercritical Units described in embodiment 2, ferrum element in described Sanicro25
Beyond body alloying component composition include chromium, nickel, tungsten, cobalt, the parts by weight of described chromium be 23.5%, the weight of described nickel
Number is 26.5%, the parts by weight of described tungsten are 4.0%, the parts by weight of described cobalt are 2.0%, and remaining is ferrum.
Embodiment 5:
According to the superheater of 650 DEG C of advanced Boiler of Ultra-supercritical Units described in embodiment 2, ferrum element in described Sanicro25
Beyond body alloying component composition include chromium, nickel, tungsten, cobalt, the parts by weight of described chromium be 22.5%, the weight of described nickel
Number is 25%, the parts by weight of described tungsten are 3%, the parts by weight of described cobalt are 1.5%, and remaining is ferrum.
Embodiment 6:
According to the Sanicro25 described in embodiment 1, the yield strength of described Sanicro25 is more than 310MP, described
The tensile strength of Sanicro25 is more than 655MP, and described percentage elongation is more than 40%.
Claims (5)
1. a superheater for 650 DEG C of advanced Boiler of Ultra-supercritical Units, its composition includes: superheater surface tube panel one, its
Feature is: described superheater surface tube panel one is connected with superheater header by header pipe joint, and described superheater is subject to
Hot side tube panel one is welded with superheater surface tube panel two by double V-groove, and described superheater header uses Sanicro25 big
Bore stainless steel tube manufactures, and the nominal diameter of described Sanicro25 large aperture stainless steel tube is more than 100mm, described header
Pipe joint uses Sanicro25 small-bore stainless steel tube manufacture, the nominal diameter of the small-bore stainless steel tube of described Sanicro25
Little 100mm, described superheater surface tube panel uses Sanicro25 Yu 18Cr rustless steel to manufacture.
The superheater of 650 DEG C of advanced Boiler of Ultra-supercritical Units the most according to claim 1, is characterized in that: described
The metallographic structure of Sanicro25 is austenite, and alloying component composition includes that chromium, nickel, tungsten, cobalt, the parts by weight of described chromium are
21.5 ~ 23.5%, the parts by weight of described nickel be 23.5 ~ 26.5%, the parts by weight of described tungsten be 2.0 ~ 4.0%, described
The parts by weight of cobalt are 1.0-2.0%, and remaining is ferrum.
The superheater of 650 DEG C of advanced Boiler of Ultra-supercritical Units the most according to claim 2, is characterized in that: described
The metallographic structure of Sanicro25 is austenite, and alloying component composition includes that chromium, nickel, tungsten, cobalt, the parts by weight of described chromium are
21.5%, the parts by weight of described nickel be 23.5%, the parts by weight of described tungsten be 2.0%, the parts by weight of described cobalt be
1.0%, remaining is ferrum.
The superheater of 650 DEG C of advanced Boiler of Ultra-supercritical Units the most according to claim 2, is characterized in that: described
In Sanicro25 alloying component composition include chromium, nickel, tungsten, cobalt, the parts by weight of described chromium be 23.5%, described nickel
Parts by weight are 26.5%, the parts by weight of described tungsten are 4.0%, the parts by weight of described cobalt are 2.0%, and remaining is ferrum.
The superheater of 650 DEG C of advanced Boiler of Ultra-supercritical Units the most according to claim 2, is characterized in that: described
In Sanicro25, the alloying component composition beyond ferrite includes that chromium, nickel, tungsten, cobalt, the parts by weight of described chromium are
22.5%, the parts by weight of described nickel be 25%, the parts by weight of described tungsten be 3%, the parts by weight of described cobalt be
1.5%, remaining is ferrum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381283.8A CN106051740A (en) | 2016-06-01 | 2016-06-01 | Superheater of 650 DEG C advanced ultra-supercritical unit boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381283.8A CN106051740A (en) | 2016-06-01 | 2016-06-01 | Superheater of 650 DEG C advanced ultra-supercritical unit boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106051740A true CN106051740A (en) | 2016-10-26 |
Family
ID=57172994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610381283.8A Pending CN106051740A (en) | 2016-06-01 | 2016-06-01 | Superheater of 650 DEG C advanced ultra-supercritical unit boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106051740A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210807A (en) * | 2018-08-29 | 2019-01-15 | 哈尔滨锅炉厂有限责任公司 | Tower photo-thermal power generation high-temperature molten salt (640 DEG C) heat dump tube panel |
| EP3499172A1 (en) * | 2017-12-12 | 2019-06-19 | Steinmüller Engineering GmbH | Superheater comprising a pipe assembly exposed to combustion gases containing long seam welded tubes for steam generator with corrosive gases |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003902A (en) * | 2015-08-05 | 2015-10-28 | 上海锅炉厂有限公司 | Header of ultra supercritical unit boiler in above 620 DEG C |
| CN105066096A (en) * | 2015-08-05 | 2015-11-18 | 上海锅炉厂有限公司 | Header of ultra supercritical boiler unit at 700 DEG C |
| CN105066099A (en) * | 2015-08-05 | 2015-11-18 | 上海锅炉厂有限公司 | Collecting box of ultra 620-DEG C steam parameter ultra supercritical unit boiler |
-
2016
- 2016-06-01 CN CN201610381283.8A patent/CN106051740A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003902A (en) * | 2015-08-05 | 2015-10-28 | 上海锅炉厂有限公司 | Header of ultra supercritical unit boiler in above 620 DEG C |
| CN105066096A (en) * | 2015-08-05 | 2015-11-18 | 上海锅炉厂有限公司 | Header of ultra supercritical boiler unit at 700 DEG C |
| CN105066099A (en) * | 2015-08-05 | 2015-11-18 | 上海锅炉厂有限公司 | Collecting box of ultra 620-DEG C steam parameter ultra supercritical unit boiler |
Non-Patent Citations (2)
| Title |
|---|
| 李益民等: "《大型火电机组用新型耐热钢》", 31 December 2013, 中国电力出版社 * |
| 王崇斌: "《蒸汽温度700℃超超临界锅炉受热面选材研究》", 《技术综述》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3499172A1 (en) * | 2017-12-12 | 2019-06-19 | Steinmüller Engineering GmbH | Superheater comprising a pipe assembly exposed to combustion gases containing long seam welded tubes for steam generator with corrosive gases |
| CN109210807A (en) * | 2018-08-29 | 2019-01-15 | 哈尔滨锅炉厂有限责任公司 | Tower photo-thermal power generation high-temperature molten salt (640 DEG C) heat dump tube panel |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161026 |
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| RJ01 | Rejection of invention patent application after publication |