CN106066035A - Surpass the G115 header of 623 DEG C of advanced Boiler of Ultra-supercritical Units - Google Patents
Surpass the G115 header of 623 DEG C of advanced Boiler of Ultra-supercritical Units Download PDFInfo
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- CN106066035A CN106066035A CN201610381272.XA CN201610381272A CN106066035A CN 106066035 A CN106066035 A CN 106066035A CN 201610381272 A CN201610381272 A CN 201610381272A CN 106066035 A CN106066035 A CN 106066035A
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- Prior art keywords
- header
- boiler
- pipe joint
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- surpassing
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/22—Drums; Headers; Accessories therefor
- F22B37/228—Headers for distributing feedwater into steam generator vessels; Accessories therefor
-
- 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
- C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
-
- 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
- C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The present invention relates to a kind of G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units.The boiler that current pressure is maximum, temperature is the highest, efficiency is the highest, vapor (steam) temperature is 605/623/623 DEG C, gross coal consumption rate is 256.16 grams of every kilowatt hours, compared with ripe unit, difference in power generating equipment layout for the A USC technology is little, but material needs tolerance higher temperature and bigger pressure, and the especially requirement of boiler header is stricter.Present invention composition includes: header cylinder (1), with one group of pipe joint (2) welding on header cylinder circumference, pipe joint one end uses fillet weld seam with header cylinder, the pipe joint other end welds with boiler heating surface small bore tube, header cylinder uses the large-diameter pipe manufacture of G115 material, and pipe joint uses the small-bore pipe manufacture of G115 material.The present invention is for surpassing the G115 header of 623 DEG C of advanced Boiler of Ultra-supercritical Units.
Description
Technical field:
The present invention relates to a kind of G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units.
Background technology:
The boiler that current world pressure is maximum, temperature is the highest, efficiency is the highest, vapor (steam) temperature is 605/623/623 DEG C, gross coal consumption rate
Being 256.16 grams of every kilowatt hours, compared with ripe unit, difference in power generating equipment layout for the A-USC technology is little, but material
Material needs tolerance higher temperature and bigger pressure, and simultaneously to New-type boiler material components, especially the requirement of boiler header is also
Stricter.
As China produces and the improving constantly and progressive of living standard, increasing to the demand of electric power, simultaneously right
The requirement of environmental protection and control disposal of pollutants is also more and more higher, and actively development is efficient, energy-conservation, Large Copacity, clean environmental protection, reliability are high
Advanced ultra supercritical (A-USC) thermal power generation unit imperative, technically from the point of view of, improve fired power generating unit main steam temperature
Degree and reheat steam temperature are the most effective approach improving its thermal efficiency, are also the research and development side of the following core of thermoelectricity technology
To, based on above-mentioned background condition, a kind of collection being applied to surpass the advanced Boiler of Ultra-supercritical Units of 623 DEG C of parameters of this product design
Case, the G115 that its material uses has excellent high-temperature behavior, processing performance and economy.
Content of the invention:
It is an object of the invention to provide a kind of G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units.
Above-mentioned purpose is realized by following technical scheme:
A kind of G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units, its composition includes: header cylinder, described header
With one group of pipe joint welding on cylinder circumference, described pipe joint one end uses fillet weld seam, institute with described header cylinder
The pipe joint other end stated welds with boiler heating surface small bore tube, and described header cylinder uses the heavy caliber of G115 material
Pipe manufactures, and described pipe joint uses the small-bore pipe manufacture of G115 material, and described large-diameter pipe diameter is more than 108mm, institute
The small-bore pipe diameter stated is less than 108mm.
The described G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units, closes in described G115 ferrite material
Gold copper-base alloy Cr content is 9.0%, and W content is 3.0%, and Co content is 3.0%, and C content is 0.08%, the iron element of described G115 material
Body metallographic structure is tempered martensite.
The described G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units, described header cylinder and described pipe
Welds types between joint is complete penetraction and fusion in welding type or local through welding type.
Beneficial effect:
1. the present invention is a kind of header being applied to surpass the advanced Boiler of Ultra-supercritical Unit of 623 DEG C of parameters, its purpose
It is to meet the safety applications more than the advanced Boiler of Ultra-supercritical Unit header of 623 DEG C of steam parameters, this product header cylinder
Body uses the large-diameter pipe manufacture of G115 material, and pipe joint uses the small-bore pipe manufacture of G115 material, uses high intensity
G115 material can effectively reduce the wall thickness of header and pipe joint, can meet again new material header and surpass 623 DEG C of steam ginsengs
Run safely and reliably under several.
Pipe joint one end of the present invention and header cylinder use complete penetraction and fusion in welding type or local through welding type fillet weld seam, the other end
With the welding of boiler heating surface (including superheater and reheater) small bore tube.
The metallographic structure of the G115 material of the present invention is tempered martensite, and it has excellent high-temperature behavior, processing performance
And economy.
The present invention is in order to ensure to surpass the manufacture of the security of 623 DEG C of advanced Boiler of Ultra-supercritical Unit headers and reduction header
Difficulty, this product G115 material replaces P92 to manufacture boiler header cylinder, replaces T92 to manufacture boiler collection with G115 material
Case pipe joint, it is ensured that material is resistant to higher temperature and bigger pressure.
Brief description:
Accompanying drawing 1 is the structural representation of the present invention.
Accompanying drawing 2 is the enlarged drawing of A in accompanying drawing 1 and welds types is complete penetraction and fusion in welding type structural representation.
Accompanying drawing 3 is the enlarged drawing of A in accompanying drawing 1 and welds types is local through welding type structural representation.
Detailed description of the invention:
Embodiment 1:
A kind of G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units, its composition includes: header cylinder 1, it is characterized in that:
Welding with one group of pipe joint 2 on described header cylinder circumference, described pipe joint one end uses angle with described header cylinder
Weld seam welds, and the described pipe joint other end welds with boiler heating surface (including superheater and reheater) small bore tube, institute
The header cylinder stated uses the large-diameter pipe manufacture of G115 material, and described pipe joint uses the small-bore control of G115 material
Making, described large-diameter pipe diameter is more than 108mm, and described small-bore pipe diameter is less than 108mm.
Embodiment 2:
The G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units according to embodiment 1, described G115 ferrite material
In material, alloy material Cr content is 9.0%, and W content is 3.0%, and Co content is 3.0%, and C content is 0.08%, described G115 material
Ferrite metallographic structure be tempered martensite.
Embodiment 3:
The G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units according to embodiment 1 or 2, described header cylinder
And the welds types between described pipe joint is complete penetraction and fusion in welding type or local through welding type.
Embodiment 4:
The G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units according to embodiment 1-3, described G115 material
Chemical composition and performance are distinguished as shown in Table 1 and Table 2:
The main chemical compositions (%) of table 1 G115 material
The Main Mechanical of table 2 G115 material
Claims (3)
1. surpassing a G115 header for 623 DEG C of advanced Boiler of Ultra-supercritical Units, its composition includes: header cylinder, it is characterized in that:
With one group of pipe joint welding on described header cylinder circumference, described pipe joint one end uses fillet welding with described header cylinder
Seam welding, the described pipe joint other end welds with boiler heating surface small bore tube, and described header cylinder uses G115 material
The large-diameter pipe manufacture of material, described pipe joint uses the small-bore pipe manufacture of G115 material, and described large-diameter pipe diameter is big
In 108mm, described small-bore pipe diameter is less than 108mm.
2. the G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units according to claim 1, is characterized in that: described
G115 ferrite material in alloy material Cr content be 9.0%, W content is 3.0%, and Co content is 3.0%, and C content is 0.08%,
The ferrite metallographic structure of described G115 material is tempered martensite.
3. the G115 header surpassing 623 DEG C of advanced Boiler of Ultra-supercritical Units according to claim 1 and 2, is characterized in that: institute
Welds types between the header cylinder stated and described pipe joint is complete penetraction and fusion in welding type or local through welding type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381272.XA CN106066035A (en) | 2016-06-01 | 2016-06-01 | Surpass the G115 header of 623 DEG C of advanced Boiler of Ultra-supercritical Units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381272.XA CN106066035A (en) | 2016-06-01 | 2016-06-01 | Surpass the G115 header of 623 DEG C of advanced Boiler of Ultra-supercritical Units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106066035A true CN106066035A (en) | 2016-11-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610381272.XA Pending CN106066035A (en) | 2016-06-01 | 2016-06-01 | Surpass the G115 header of 623 DEG C of advanced Boiler of Ultra-supercritical Units |
Country Status (1)
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|---|---|
| CN (1) | CN106066035A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975786A (en) * | 2017-12-28 | 2018-05-01 | 哈尔滨锅炉厂有限责任公司 | The header of 630 DEG C of steam parameter Boiler of Ultra-supercritical Unit |
| CN107975785A (en) * | 2017-12-28 | 2018-05-01 | 哈尔滨锅炉厂有限责任公司 | The header of 630 DEG C of steam parameter station boilers |
| CN108180463A (en) * | 2017-12-27 | 2018-06-19 | 哈尔滨锅炉厂有限责任公司 | A kind of header of 630 DEG C of advanced ultra-supercritical boilers |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045962A (en) * | 2012-12-26 | 2013-04-17 | 钢铁研究总院 | Steel for steam-temperature ultra-supercritical thermal power unit and preparation method thereof |
| 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 |
| 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 |
| 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 |
-
2016
- 2016-06-01 CN CN201610381272.XA patent/CN106066035A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103045962A (en) * | 2012-12-26 | 2013-04-17 | 钢铁研究总院 | Steel for steam-temperature ultra-supercritical thermal power unit and preparation method thereof |
| 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 |
| 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 |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108180463A (en) * | 2017-12-27 | 2018-06-19 | 哈尔滨锅炉厂有限责任公司 | A kind of header of 630 DEG C of advanced ultra-supercritical boilers |
| CN107975786A (en) * | 2017-12-28 | 2018-05-01 | 哈尔滨锅炉厂有限责任公司 | The header of 630 DEG C of steam parameter Boiler of Ultra-supercritical Unit |
| CN107975785A (en) * | 2017-12-28 | 2018-05-01 | 哈尔滨锅炉厂有限责任公司 | The header of 630 DEG C of steam parameter station boilers |
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Application publication date: 20161102 |
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