CN107975785A - The header of 630 DEG C of steam parameter station boilers - Google Patents
The header of 630 DEG C of steam parameter station boilers Download PDFInfo
- Publication number
- CN107975785A CN107975785A CN201711458211.XA CN201711458211A CN107975785A CN 107975785 A CN107975785 A CN 107975785A CN 201711458211 A CN201711458211 A CN 201711458211A CN 107975785 A CN107975785 A CN 107975785A
- Authority
- CN
- China
- Prior art keywords
- header
- steam
- pipe fitting
- vapor
- temperature
- Prior art date
- 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.)
- Pending
Links
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 25
- 239000010959 steel Substances 0.000 claims description 25
- 229910000734 martensite Inorganic materials 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 238000005275 alloying Methods 0.000 claims description 4
- 229910001566 austenite Inorganic materials 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 6
- 230000002929 anti-fatigue Effects 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium 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
- C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with 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
- C22C38/18—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
-
- 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
Landscapes
- 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)
- Rigid Pipes And Flexible Pipes (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
A kind of header of 630 DEG C of steam parameter station boilers.World's pressure maximum, the highest boiler of temperature at present, vapor (steam) temperature is 605/623/623 DEG C, coal consumption for power generation is for 256.16 grams per kilowatt hour, realize the efficient utilization of Coal Energy Source, and with the development trend of China's energy-saving and emission-reduction, further improving boiler controller system parameter becomes inevitable requirement, and 630 DEG C of steam parameter station boilers of development are imperative.A kind of header of 630 DEG C of steam parameter station boilers, its composition include：Big header（7）With small header（2）, big header is high-temperature steam header, and small header is high-temperature surface steam (vapor) outlet header, and high-temperature surface steam (vapor) outlet header passes through one group of pipe fitting A（1）The tube on high-temperature heating surface of the connection high-temperature surface steam (vapor) outlet header, high-temperature surface steam (vapor) outlet header pass through one group of pipe fitting B（3）Connect pipe fitting C（5）, pipe fitting C and big header connecting tube（6）Connection, big header connecting tube are connected with high-temperature surface steam (vapor) outlet header.
Description
Technical field：
The present invention relates to a kind of header of 630 DEG C of steam parameter station boilers.
Background technology：
World's pressure maximum, temperature highest, the highest boiler of efficiency at present, vapor (steam) temperature are 605/623/623 DEG C, coal consumption for power generation
For 256 .16 grams of every kilowatt hours, the efficient utilization of Coal Energy Source is realized.And with the development trend of China's energy-saving and emission-reduction, into one
Step, which improves boiler controller system parameter, becomes inevitable requirement, and 630 DEG C of steam parameter station boilers of development are imperative.
DEG C steam parameter station boiler will be selected in high-temperature surface steam (vapor) outlet header pipe joint temperature more than 650 DEG C
The header pipe joint of martensite heat-resistant steel material can not meet long-term safety requirement, it is therefore desirable to use austenitic stainless steel
Header and pipe fitting, collect in high temperature and select martensite heat-resistant steel cost lower in steam header and jet chimney, and can
Meet long-term safety requirement.The small header of austenitic stainless steel is tied with the big header of martensite heat-resistant steel using large-diameter pipe welding
Structure, its thermal fatigue resistance is poor, can not adapt to the need of 630 DEG C of steam parameter station boiler peaking performances and unit load change
Will.
The content of the invention：
The object of the present invention is to provide a kind of header of 630 DEG C of steam parameter station boilers, solves large-diameter pipe austenite stainless
The problem of steel and the poor thermal fatigue resistance of martensite heat-resistant steel connection structure, meet 630 DEG C of steam parameter station boiler peak regulations
Performance and the requirement of unit load change.
Above-mentioned purpose is realized by following technical scheme：
A kind of header of 630 DEG C of steam parameter station boilers, its composition include：Big header and small header, the big header are
High-temperature steam header, the small header are high-temperature surface steam (vapor) outlet header, and the high-temperature surface steam goes out
Mouth header passes through the tube on high-temperature heating surface of the high-temperature surface steam (vapor) outlet header one group of pipe fitting A connection Suo Shu, the height
Warm heating surface steam (vapor) outlet header is connected by one group of pipe fitting B connection pipe fittings C, the pipe fitting C and big header connecting tube
Connect, the big header connecting tube is connected with the high-temperature surface steam (vapor) outlet header.
The header of 630 DEG C of steam parameter station boilers, the pipe fitting A and the pipe fitting B are used
TP316H small-bore pipes manufacture, and the pipe fitting C is manufactured using G115 small-bore pipes.
The outside diameter of the header of 630 DEG C of steam parameter station boilers, the pipe fitting B and the pipe fitting C
Less than 108mm, the outside diameter of the big header connecting tube is more than 108mm.
The header of 630 DEG C of steam parameter station boilers, it is the high-temperature surface steam (vapor) outlet header, described
The pipe fitting A and pipe fitting B is TP316H austenitic heat-resistance steels, and the high-temperature surface steam (vapor) outlet header uses
TP316H austenitic stainless steels large-diameter pipe manufactures.
The header of 630 DEG C of steam parameter station boilers, the high-temperature steam header, the pipe fitting
C and the big header connecting tube are G115 martensite heat-resistant steels, and the high-temperature steam header uses G115 martensites
Heat resisting steel large-diameter pipe manufactures, and the outside diameter of the G115 martensite heat-resistant steel large-diameter pipes is less than 108mm.
The header of 630 DEG C of steam parameter station boilers, bulk composition is iron in the TP316H materials, alloy
Cr contents are that 16.0 ~ 18.0%, Ni contents are that 11.0 ~ 14.0%, Mo contents are 2.00 ~ 3.00% in component, the TP316H materials
The metallographic structure of material is austenite.
The header of 630 DEG C of steam parameter station boilers, bulk composition is iron in the G115 materials, alloy into
Cr contents are about 9.0% in point, W content 3.0%, and Co contents are 3%, and the G115 metallographic structures of the material are tempered martensite
Body.
Beneficial effects of the present invention：
1. it is an object of the present invention to by innovative design, make up austenitic stainless steel as thick walled part anti-fatigue performance it is poor,
Oxidation resistance in steam energy difference of the martensite heat-resistant steel in 630 DEG C of parameter station boiler high-temperature surface outlet vapor headers is not
Foot.Austenitic stainless steel is used in the small header of temperature higher, oxidation resistance in steam can disclosure satisfy that requirement, and header wall thickness
It is small, it disclosure satisfy that anti-fatigue performance.
Martensite heat-resistant steel is used in the present invention big header lower in temperature and small temperature deviation, its anti-fatigue performance is excellent
It is different, and cost is cheap with respect to austenitic stainless steel, realizes that different steel weld connects by small-bore pipe between large and small header, protects
The thermal stress of the big material commissure of two kinds of thermal expansion coefficient differences of card effectively reduces, it is ensured that safety requirements.
The present invention can meet that 630 DEG C of steam parameter station boilers can be with high-strength intensity for the oxidation resistance in steam of heat resisting steel
Requirement, it is of low cost, it is simple in structure, ensure safety.
The present invention solves large-diameter pipe austenitic stainless steel and the thermal fatigue resistance of martensite heat-resistant steel connection structure is poor
The problem of, meet the requirement of 630 DEG C of steam parameter station boiler peaking performances and unit load change.
Brief description of the drawings：
Attached drawing 1 is the structure diagram of the present invention.
In figure：1st, pipe fitting A, 2, small header, 3, pipe fitting B, 4, TP316H and G115 dissimilar steel butt welds, 5, pipe connects
Head C, 6, big header connecting tube, 7, big header.
Embodiment：
Embodiment 1：
A kind of header of 630 DEG C of steam parameter station boilers, its composition include：Big header 7 and small header 2, the big header
For high-temperature steam header, the small header is high-temperature surface steam (vapor) outlet header, the high-temperature surface steam
Outlet header is described by the tube on high-temperature heating surface of the high-temperature surface steam (vapor) outlet header one group of pipe fitting A1 connection Suo Shu
High-temperature surface steam (vapor) outlet header is connected by one group of pipe fitting B3 connection pipe fittings C5, the pipe fitting C with big header
Pipe 6 connects, and the big header connecting tube is connected with the high-temperature surface steam (vapor) outlet header.
Embodiment 2：
The header of 630 DEG C of steam parameter station boilers according to embodiment 1, the pipe fitting A and the pipe fitting B
Manufactured using TP316H small-bore pipes, the pipe fitting C is manufactured using G115 small-bore pipes.
Embodiment 3：
The header of 630 DEG C of steam parameter station boilers according to embodiment 1 or 2, the pipe fitting B and the pipe connect
The outside diameter of head C is less than 108mm, and the outside diameter of the big header connecting tube is more than 108mm.
Embodiment 4：
The header of 630 DEG C of steam parameter station boilers according to embodiment 1 or 2 or 3, the high-temperature surface steam go out
Mouthful header, the pipe fitting A and the pipe fitting B are TP316H austenitic heat-resistance steels, the high-temperature surface steam
Outlet header is manufactured using TP316H austenitic stainless steels large-diameter pipe.
Embodiment 5：
The header of 630 DEG C of steam parameter station boilers according to embodiment 1 or 2 or 3 or 4, the high-temperature steam collect
Header, the pipe fitting C and the big header connecting tube are G115 martensite heat-resistant steels, and the high-temperature steam collects collection
Case is manufactured using G115 martensite heat-resistant steels large-diameter pipe, and the outside diameter of the G115 martensite heat-resistant steel large-diameter pipes is less than
108mm。
Embodiment 6：
The high-temperature surface steam (vapor) outlet header of 630 DEG C of steam parameter station boilers（Small header）With the big header connecting tubes of G115,
Different steel weld is realized using TP316H small-bore pipes and G115 small-bore pipes, tube outer diameter is not more than 108mm.
Embodiment 7：
The big header connecting tubes of G115 of 630 DEG C of steam parameter station boilers and high-temperature steam header（Big header）, use
G115 manages steel welding of the same race, and tubing specification is more than 108mm.
Embodiment 8：
Bulk composition is iron in the TP316H materials, in alloying component Cr contents be 16.0 ~ 18.0%, Ni contents be 11.0 ~
14.0%, Mo content are 2.00 ~ 3.00%, and the metallographic structure of the TP316H materials is austenite.
Embodiment 9：
The high-temperature steam header of 630 DEG C of steam parameter station boilers（Big header）And its connecting tube, the G115 materials
Middle bulk composition is iron, and Cr contents are about 9.0% in alloying component, W content 3.0%, and Co contents are 3%, the material
G115 metallographic structures are tempered martensite.
Claims (7)
1. a kind of header of 630 DEG C of steam parameter station boilers, its composition include：Big header and small header, it is characterized in that：It is described
Big header be high-temperature steam header, the small header is high-temperature surface steam (vapor) outlet header, the high temperature by
The high-temperature surface that hot face steam (vapor) outlet header passes through the high-temperature surface steam (vapor) outlet header one group of pipe fitting A connection Suo Shu
Pipe, the high-temperature surface steam (vapor) outlet header pass through one group of pipe fitting B connection pipe fittings C, the pipe fitting C and great Ji
Case connecting tube connects, and the big header connecting tube is connected with the high-temperature surface steam (vapor) outlet header.
2. the header of 630 DEG C of steam parameter station boilers according to claim 1, it is characterized in that：The pipe fitting A and
The pipe fitting B is manufactured using TP316H small-bore pipes, and the pipe fitting C is manufactured using G115 small-bore pipes.
3. the header of 630 DEG C of steam parameter station boilers according to claim 2, it is characterized in that：The pipe fitting B and
The outside diameter of the pipe fitting C is less than 108mm, and the outside diameter of the big header connecting tube is more than 108mm.
4. the header of 630 DEG C of steam parameter station boilers according to claim 1 or 2 or 3, it is characterized in that：The height
Warm heating surface steam (vapor) outlet header, the pipe fitting A and the pipe fitting B are TP316H austenitic heat-resistance steels, described
High-temperature surface steam (vapor) outlet header is manufactured using TP316H austenitic stainless steels large-diameter pipe.
5. the header of 630 DEG C of steam parameter station boilers according to claim 1 or 2 or 3 or 4, it is characterized in that：Described
High-temperature steam header, the pipe fitting C and the big header connecting tube are G115 martensite heat-resistant steels, the height
Warm steam header is manufactured using G115 martensite heat-resistant steels large-diameter pipe, and the G115 martensite heat-resistant steel heavy calibers
The outside diameter of pipe is less than 108mm.
6. the header of 630 DEG C of steam parameter station boilers according to claim 1 or 2 or 3 or 4 or 5, it is characterized in that：Institute
Bulk composition is iron in the TP316H materials stated, and Cr contents are that 16.0 ~ 18.0%, Ni contents are 11.0 ~ 14.0% in alloying component,
Mo contents are 2.00 ~ 3.00%, and the metallographic structure of the TP316H materials is austenite.
7. the header of 630 DEG C of steam parameter station boilers according to claim 1 or 2 or 3 or 4 or 5 or 6, it is characterized in that：
Bulk composition is iron in the G115 materials, and Cr contents are about 9.0% in alloying component, W content 3.0%, and Co contents are 3%,
The G115 metallographic structures of the material are tempered martensite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711458211.XA CN107975785A (en) | 2017-12-28 | 2017-12-28 | The header of 630 DEG C of steam parameter station boilers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711458211.XA CN107975785A (en) | 2017-12-28 | 2017-12-28 | The header of 630 DEG C of steam parameter station boilers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107975785A true CN107975785A (en) | 2018-05-01 |
Family
ID=62008110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711458211.XA Pending CN107975785A (en) | 2017-12-28 | 2017-12-28 | The header of 630 DEG C of steam parameter station boilers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107975785A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08170804A (en) * | 1994-12-15 | 1996-07-02 | Ishikawajima Harima Heavy Ind Co Ltd | Structure of outlet header part of radiant type superheater in boiler |
| CN202747312U (en) * | 2012-07-31 | 2013-02-20 | 山东华源锅炉有限公司 | Novel low-temperature heat pipe waste heat boiler |
| CN106051729A (en) * | 2016-06-01 | 2016-10-26 | 哈尔滨锅炉厂有限责任公司 | Header of 650 DEG C advanced ultra-supercritical unit boiler |
| CN106051725A (en) * | 2016-06-01 | 2016-10-26 | 哈尔滨锅炉厂有限责任公司 | High strength material header of 650 DEG C advanced ultra-supercritical unit boiler |
| CN106066035A (en) * | 2016-06-01 | 2016-11-02 | 哈尔滨锅炉厂有限责任公司 | Surpass the G115 header of 623 DEG C of advanced Boiler of Ultra-supercritical Units |
| CN206626560U (en) * | 2017-02-09 | 2017-11-10 | 华电国际电力股份有限公司十里泉发电厂 | Reheater height for boiler generating set outlet header device again |
| CN208074928U (en) * | 2017-12-28 | 2018-11-09 | 哈尔滨锅炉厂有限责任公司 | The header of 630 DEG C of steam parameter station boilers |
-
2017
- 2017-12-28 CN CN201711458211.XA patent/CN107975785A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08170804A (en) * | 1994-12-15 | 1996-07-02 | Ishikawajima Harima Heavy Ind Co Ltd | Structure of outlet header part of radiant type superheater in boiler |
| CN202747312U (en) * | 2012-07-31 | 2013-02-20 | 山东华源锅炉有限公司 | Novel low-temperature heat pipe waste heat boiler |
| CN106051729A (en) * | 2016-06-01 | 2016-10-26 | 哈尔滨锅炉厂有限责任公司 | Header of 650 DEG C advanced ultra-supercritical unit boiler |
| CN106051725A (en) * | 2016-06-01 | 2016-10-26 | 哈尔滨锅炉厂有限责任公司 | High strength material header of 650 DEG C advanced ultra-supercritical unit boiler |
| CN106066035A (en) * | 2016-06-01 | 2016-11-02 | 哈尔滨锅炉厂有限责任公司 | Surpass the G115 header of 623 DEG C of advanced Boiler of Ultra-supercritical Units |
| CN206626560U (en) * | 2017-02-09 | 2017-11-10 | 华电国际电力股份有限公司十里泉发电厂 | Reheater height for boiler generating set outlet header device again |
| CN208074928U (en) * | 2017-12-28 | 2018-11-09 | 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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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180501 |
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