CN208074928U - 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
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- CN208074928U CN208074928U CN201721878259.1U CN201721878259U CN208074928U CN 208074928 U CN208074928 U CN 208074928U CN 201721878259 U CN201721878259 U CN 201721878259U CN 208074928 U CN208074928 U CN 208074928U
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Abstract
A kind of header of 630 DEG C of steam parameter station boilers.A kind of header of 630 DEG C of steam parameter station boilers, 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 connect with high-temperature surface steam (vapor) outlet header.
Description
Technical field：
The utility model is related to a kind of headers 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, power generation
Coal consumption is 256 .16 grams of every kilowatt hours, realizes the efficient utilization of Coal Energy Source.And with the development trend of China's energy-saving and emission-reduction,
Further increasing 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 more than 650 DEG C in high-temperature surface steam (vapor) outlet header pipe joint temperature, select
The header pipe joint of martensite heat-resistant steel material cannot be satisfied 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, 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 variation
It wants.
Invention content：
The purpose of this utility model is to provide a kind of header of 630 DEG C of steam parameter station boilers, and it is difficult to understand to solve large-diameter pipe
The problem of family name's body stainless steel and the thermal fatigue resistance difference of martensite heat-resistant steel connection structure meets 630 DEG C of steam parameter power stations
The requirement of boiler peaking performance and unit load variation.
Above-mentioned purpose is realized by following technical scheme：
A kind of header of 630 DEG C of steam parameter station boilers, composition include：Big header and small header, the big collection
Case is high-temperature steam header, and the small header is high-temperature surface steam (vapor) outlet header, and the high-temperature surface steams
Vapor outlet header is described by the tube on high-temperature heating surface of the high-temperature surface steam (vapor) outlet header described in one group of pipe fitting A connection
High-temperature surface steam (vapor) outlet header connect with big header by one group of pipe fitting B connection pipe fittings C, the pipe fitting C
Pipe connects, and the big header connecting tube is connect 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 header of 630 DEG C of steam parameter station boilers, the outer diameter of the pipe fitting B and the pipe fitting C
Less than 108mm, the outer 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 steel large-diameter pipes manufacture.
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 outer diameter of the G115 martensite heat-resistant steel large-diameter pipes is less than 108mm.
The beneficial effects of the utility model：
1. its object is to by innovative design, it is antifatigue as thick walled part to make up austenitic stainless steel for the utility model
The oxidation resistance in steam of poor performance, martensite heat-resistant steel in 630 DEG C of parameter station boiler high-temperature surface outlet vapor headers
The deficiency of energy difference.Use austenitic stainless steel, oxidation resistance in steam that can meet the requirements in the higher small header of temperature, and
Header wall thickness is small, disclosure satisfy that anti-fatigue performance.
Martensite heat-resistant steel, fatigue resistance are used in the big header that the utility model is lower in temperature and temperature deviation is small
Can be excellent, 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
It connects, ensures that the thermal stress of the big material commissure of two kinds of coefficient of thermal expansion differences effectively reduces, it is ensured that safety requirements.
Description of the drawings：
Attached drawing 1 is the structural schematic diagram of the utility model.
In figure：1, 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.
Specific implementation mode：
Embodiment 1：
A kind of header of 630 DEG C of steam parameter station boilers, composition include：Big header 7 and small header 2, described is big
Header is high-temperature steam header, and the small header is high-temperature surface steam (vapor) outlet header, the high-temperature surface
Steam (vapor) outlet header passes through the tube on high-temperature heating surface of the high-temperature surface steam (vapor) outlet header described in one group of pipe fitting A1 connection, institute
The high-temperature surface steam (vapor) outlet header stated passes through one group of pipe fitting B3 connection pipe fittings C5, the pipe fitting C and big header
Connecting tube 6 connects, and the big header connecting tube is connect with the high-temperature surface steam (vapor) outlet header.
Embodiment 2：
According to the header of 630 DEG C of steam parameter station boilers described in embodiment 1, the pipe fitting A and the pipe
Connector B is manufactured using TP316H small-bore pipes, and 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 described
The outer diameter of pipe fitting C is less than 108mm, and the outer 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
Vapor outlet header, the pipe fitting A and the pipe fitting B are TP316H austenitic heat-resistance steels, the high-temperature surface
Steam (vapor) outlet header is manufactured using TP316H austenitic stainless steel large-diameter pipes.
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
Header, the pipe fitting C and the big header connecting tube are G115 martensite heat-resistant steels, and the high-temperature steam converges
Collect header to manufacture using G115 martensite heat-resistant steel large-diameter pipes, and the outer diameter of the G115 martensite heat-resistant steel large-diameter pipes
Less than 108mm.
Embodiment 6：
The high-temperature surface steam (vapor) outlet header of 630 DEG C of steam parameter station boilers（Small header）It is connect with the big headers of G115
Pipe realizes that different steel weld, tube outer diameter are not more than 108mm using TP316H small-bore pipes and G115 small-bore pipes.
Bulk composition is iron in the TP316H materials, and Cr contents are that 16.0 ~ 18.0%, Ni contents are in alloying component
11.0 ~ 14.0%, Mo content are 2.00 ~ 3.00%, and the metallographic structure of the TP316H materials is austenite.
Embodiment 7：
The high-temperature steam header of 630 DEG C of steam parameter station boilers（Big header）And its connecting tube, the G115
Bulk composition is iron in material, and Cr contents are about 9.0% in alloying component, W content 3.0%, and Co contents are 3%, the material
G115 metallographic structures be tempered martensite.The big header connecting tubes of G115 of 30 DEG C of steam parameter station boilers are converged with high-temperature steam
Collect header（Big header）, steel of the same race is managed using G115 and is welded, tubing specification is more than 108mm.
Claims (1)
1. a kind of header of 630 DEG C of steam parameter station boilers, 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 be 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 described in one group of pipe fitting A connection
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 connect with the high-temperature surface steam (vapor) outlet header；
The pipe fitting A and pipe fitting B is manufactured using TP316H small-bore pipes, and the pipe fitting C uses G115
Small-bore pipe manufactures；
The outer diameter of the pipe fitting B and the pipe fitting C is less than 108mm, and the outer diameter of the big header connecting tube is more than
108mm；
High-temperature surface steam (vapor) outlet header, the pipe fitting A and the pipe fitting B is that TP316H austenites are resistance to
Hot steel, the high-temperature surface steam (vapor) outlet header are manufactured using TP316H austenitic stainless steel large-diameter pipes；
High-temperature steam header, the pipe fitting C and the big header connecting tube is that G115 martensites are heat-resisting
Steel, the high-temperature steam header is manufactured using G115 martensite heat-resistant steel large-diameter pipes, and the G115 martensites
The outer diameter of heat resisting steel large-diameter pipe is less than 108mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721878259.1U CN208074928U (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 |
|---|---|---|---|
| CN201721878259.1U CN208074928U (en) | 2017-12-28 | 2017-12-28 | The header of 630 DEG C of steam parameter station boilers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208074928U true CN208074928U (en) | 2018-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721878259.1U Active CN208074928U (en) | 2017-12-28 | 2017-12-28 | The header of 630 DEG C of steam parameter station boilers |
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| CN (1) | CN208074928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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2017
- 2017-12-28 CN CN201721878259.1U patent/CN208074928U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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