CN106051725A - High strength material header of 650 DEG C advanced ultra-supercritical unit boiler - Google Patents
High strength material header of 650 DEG C advanced ultra-supercritical unit boiler Download PDFInfo
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- CN106051725A CN106051725A CN201610381268.3A CN201610381268A CN106051725A CN 106051725 A CN106051725 A CN 106051725A CN 201610381268 A CN201610381268 A CN 201610381268A CN 106051725 A CN106051725 A CN 106051725A
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- header
- stainless steel
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- boiler
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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
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
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Abstract
Provided is a high strength material header of a 650 DEG C advanced ultra-supercritical unit boiler. With the increasing improvement and progress of the production and living level of China, the demand for electric power is larger and larger, and meanwhile the requirement for environmental protection and pollution discharge control is higher and higher. It is imperative to actively develop advanced ultra-supercritical thermal power generating units with high efficiency, energy saving, large capacity, cleanliness, environmental protection and high reliability. The high strength material header of the 650 DEG C advanced ultra-supercritical unit boiler comprises a header body (1) and header pipe connectors (2). A set of the header pipe connectors are evenly welded to the header body. One ends of the header pipe connectors are welded with the header body through full penetration weld fillet welds or through partial penetration weld fillet welds, and the other ends of the header pipe connectors are welded with small-diameter pipes of the heating face of the boiler. The heating face of the boiler is provided with a superheater or a reheater. The high strength material header is applied to the 650 DEG C advanced ultra-supercritical unit boiler.
Description
Technical field:
The present invention relates to the header of a kind of 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material.Have good high temperatures
Energy, processing performance and economy.
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.The not only requirement to material of A-USC unit is higher, and for unit this
The manufacturing cost of body needs the emphasis considered especially.
Based on above-mentioned background condition, have devised a kind of collection being applied to 650 DEG C of parameter advanced person's Boiler of Ultra-supercritical Units
Case.
Summary of the invention:
It is an object of the invention to provide the header of a kind of 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material.
Above-mentioned purpose is realized by following technical scheme:
The header of a kind of 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material, its composition includes: header body and collecting box pipe
Joint, described header body is welded with header pipe joint described in a group uniformly, described header pipe joint one end with
Described header body uses complete penetraction and fusion in welding type fillet weld seam or uses through welding type angle, local fillet weld seam, the other end and boiler
Heating surface small bore tube welds, and described boiler heating surface is superheater and reheater, and described header body uses 23CR-
47NI-7W large-caliber stainless steel pipe manufactures, and described heavy caliber is nominal diameter more than 100 millimeters, described header pipe joint
Using 23CR-47NI-7W small-bore stainless steel tube manufacture, described is small-bore for nominal diameter less than 100 millimeters, metallographic structure
For austenitic stainless steel, 700 DEG C of allowable stresses of described 23Cr-47Ni-7W austenitic stainless steel are more than or equal to 58.4MPa.
The header of described 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material, described 23CR-47NI-7W is big
In bore stainless steel tube and described 23CR-47NI-7W small-bore stainless steel tube alloying component, Cr content is 21.0～25.0%,
Ni content is about 40.0～55.0%, and W content is about 4.0～8.0%, and remaining is ferrite.
The header of described 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material, described 23CR-47NI-7W is big
In bore stainless steel tube and described 23CR-47NI-7W small-bore stainless steel tube alloying component, Cr content is 21.0%, Ni content
Being about 40.0%, W content is about 4.0%, and remaining is ferrite.
The header of described 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material, described 23CR-47NI-7W is big
In bore stainless steel tube and described 23CR-47NI-7W small-bore stainless steel tube alloying component, Cr content is 25.0%, Ni content
Being about 55.0%, W content is about 8.0%, and remaining is ferrite.
The header of described 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material, described 23CR-47NI-7W is big
In bore stainless steel tube and described 23CR-47NI-7W small-bore stainless steel tube alloying component, Cr content is 23.0%, Ni content
Being about 50.0%, W content is about 6.0%, and remaining is ferrite.
Beneficial effects of the present invention:
1. the present invention is in order to ensure the safety of 650 DEG C of advanced Boiler of Ultra-supercritical Unit headers and reduce the manufacture difficulty of header
Spend, reduce by 650 DEG C of advanced Boiler of Ultra-supercritical Unit manufacturing costs simultaneously, use 23CR-47NI-7W to replace tradition maturation
Ferrum expensive in P92 material and new departure is Ni-based and nickel-base alloy manufactures boiler header body, makes with 23CR-47NI-7W
Making boiler header pipe joint, the 23CR-47NI-7W material of high intensity can effectively reduce the wall thickness of header and pipe joint, again
New material header can be met run safely and reliably under surpassing 650 DEG C of steam parameters, it is also possible to manufacturing cost is greatly lowered.
Accompanying drawing illustrates:
Accompanying drawing 1 is the structural representation of the present invention.
Accompanying drawing 2 is the complete penetraction and fusion in welding type fillet weld seam structural representation of accompanying drawing 1.
Accompanying drawing 3 is the local through welding type fillet weld seam structural representation of accompanying drawing 1.
Detailed description of the invention:
Embodiment 1:
The header of a kind of 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material, its composition includes: header body and collecting box pipe
Joint, described header body is welded with header pipe joint described in a group uniformly, described header pipe joint one end with
Described header body uses complete penetraction and fusion in welding type fillet weld seam or uses through welding type angle, local fillet weld seam, the other end and boiler
Heating surface small bore tube welds, and described boiler heating surface is superheater and reheater, and described header body uses 23CR-
47NI-7W large-caliber stainless steel pipe manufactures, and described heavy caliber is nominal diameter more than 100 millimeters, described header pipe joint
Using 23CR-47NI-7W small-bore stainless steel tube manufacture, described is small-bore for nominal diameter less than 100 millimeters, metallographic structure
For austenitic stainless steel, 700 DEG C of allowable stresses of described 23Cr-47Ni-7W austenitic stainless steel are more than or equal to 58.4MPa.
Embodiment 2:
According to the header of the 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material described in embodiment 1, described 23CR-
In 47NI-7W large-caliber stainless steel pipe and described 23CR-47NI-7W small-bore stainless steel tube alloying component, Cr content is 21.0
～25.0%, Ni content is about 40.0～55.0%, and W content is about 4.0～8.0%, and remaining is ferrite.
Embodiment 3:
According to the header of the 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material described in embodiment 1 or 2, it is characterized in that: institute
Cr in the 23CR-47NI-7W large-caliber stainless steel pipe stated and described 23CR-47NI-7W small-bore stainless steel tube alloying component
Content is 21.0%, and Ni content is about 40.0%, and W content is about 4.0%, and remaining is ferrite.
Embodiment 4:
According to the header of the 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material described in embodiment 1 or 2 or 3, its feature
It is: described 23CR-47NI-7W large-caliber stainless steel pipe and described 23CR-47NI-7W small-bore stainless steel tube alloying component
Middle Cr content is 25.0%, and Ni content is about 55.0%, and W content is about 8.0%, and remaining is ferrite.
Embodiment 5:
According to the header of the 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material described in embodiment 1 or 2 or 3 or 4,
Described 23CR-47NI-7W large-caliber stainless steel pipe stainless steel tube small-bore with described 23CR-47NI-7W alloy becomes
In point, Cr content is 23.0%, and Ni content is about 50.0%, and W content is about 6.0%, and remaining is ferrite.
Embodiment 6:
Claims (5)
1. a header for 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material, its composition includes: header body and header
Pipe joint, is characterized in that: be welded with the header pipe joint described in a group, described collecting box pipe on described header body uniformly
Joint one end and described header body use complete penetraction and fusion in welding type fillet weld seam or use through welding type angle, local fillet weld seam, separately
One end is welded with boiler heating surface small bore tube, and described boiler heating surface is superheater and reheater, and described header is originally
Body uses 23CR-47NI-7W large-caliber stainless steel pipe to manufacture, and described heavy caliber is nominal diameter more than 100 millimeters, described
Header pipe joint uses 23CR-47NI-7W small-bore stainless steel tube manufacture, described small-bore for nominal diameter 100 millimeters with
Under, metallographic structure is austenitic stainless steel, and 700 DEG C of allowable stresses of described 23Cr-47Ni-7W austenitic stainless steel are for being more than
In 58.4MPa.
The header of 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material the most according to claim 1, is characterized in that:
In described 23CR-47NI-7W large-caliber stainless steel pipe and described 23CR-47NI-7W small-bore stainless steel tube alloying component
Cr content is 21.0～25.0%, and Ni content is about 40.0～55.0%, and W content is about 4.0～8.0%, and remaining is ferrite.
The header of 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material the most according to claim 1 and 2, its feature
It is: described 23CR-47NI-7W large-caliber stainless steel pipe and described 23CR-47NI-7W small-bore stainless steel tube alloying component
Middle Cr content is 21.0%, and Ni content is about 40.0%, and W content is about 4.0%, and remaining is ferrite.
4., according to the header of the 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material described in claim 1 or 2 or 3, it is special
Levy and be: described 23CR-47NI-7W large-caliber stainless steel pipe stainless steel tube small-bore with described 23CR-47NI-7W alloy becomes
In point, Cr content is 25.0%, and Ni content is about 55.0%, and W content is about 8.0%, and remaining is ferrite.
5. according to the header of the 650 DEG C of advanced Boiler of Ultra-supercritical Units of high intensity material described in claim 1 or 2 or 3 or 4,
It is characterized in that: described 23CR-47NI-7W large-caliber stainless steel pipe and the small-bore stainless steel tube of described 23CR-47NI-7W close
In gold composition, Cr content is 23.0%, and Ni content is about 50.0%, and W content is about 6.0%, and remaining is ferrite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381268.3A CN106051725A (en) | 2016-06-01 | 2016-06-01 | High strength material header of 650 DEG C advanced ultra-supercritical unit boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610381268.3A CN106051725A (en) | 2016-06-01 | 2016-06-01 | High strength material header of 650 DEG C advanced ultra-supercritical unit boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106051725A true CN106051725A (en) | 2016-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610381268.3A Pending CN106051725A (en) | 2016-06-01 | 2016-06-01 | High strength material header of 650 DEG C advanced ultra-supercritical unit boiler |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676764A (en) * | 2017-09-28 | 2018-02-09 | 哈尔滨锅炉厂有限责任公司 | Realize high temperature stainless steel heating surface body to the new transformational structure of ferrite outlet header |
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066098A (en) * | 2015-08-05 | 2015-11-18 | 上海锅炉厂有限公司 | Header of 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 CN201610381268.3A patent/CN106051725A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105066098A (en) * | 2015-08-05 | 2015-11-18 | 上海锅炉厂有限公司 | Header of 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 |
Non-Patent Citations (2)
| Title |
|---|
| 卢征然等: "700℃超超临界锅炉用钢HR6W焊接接头性能的试验研究", 《锅炉技术》 * |
| 李阳等: "700℃A-USC电站锅炉材料专利分析与研究", 《材料导报》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676764A (en) * | 2017-09-28 | 2018-02-09 | 哈尔滨锅炉厂有限责任公司 | Realize high temperature stainless steel heating surface body to the new transformational structure of ferrite outlet header |
| CN107676764B (en) * | 2017-09-28 | 2019-04-05 | 哈尔滨锅炉厂有限责任公司 | Realize the transformational structure of high temperature stainless steel heating surface tube body to ferrite outlet header |
| 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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| PB01 | Publication | ||
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Application publication date: 20161026 |