JPS60148807U - Steel pipes for low NOx combustion boilers - Google Patents
Steel pipes for low NOx combustion boilersInfo
- Publication number
- JPS60148807U JPS60148807U JP3731284U JP3731284U JPS60148807U JP S60148807 U JPS60148807 U JP S60148807U JP 3731284 U JP3731284 U JP 3731284U JP 3731284 U JP3731284 U JP 3731284U JP S60148807 U JPS60148807 U JP S60148807U
- Authority
- JP
- Japan
- Prior art keywords
- low nox
- steel pipes
- nox combustion
- combustion boilers
- steel pipe
- 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
Landscapes
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は酸化および硫化反応に対する酸素および硫黄の
遷移分圧比と温度との関係、第２図は低酸素高硫黄ガス
雰囲気下における腐食量とＣｒｆｉ −中のＣｒ濃
度との関係を示すグラフである。第３図は本考案による
火炉壁管の一部断面図、第４図は火炉管壁の概略図であ
る。 −１・・・・・・火炉管壁、１ａ・・・・
・・鋼管、２・・・・・・溶接部、５−−−−−−クラ
ツ′ド部。
ｔＯｓ＋ｇｓ２＝４Ｃｒｓδ４＋’？（ｈＮ
’ｅＯ＋８２ ＝２Ｆｅ Ｓ−＋θ２
Ｓρθ −ｌθθＯFigure 1 is a graph showing the relationship between the transition partial pressure ratio of oxygen and sulfur and temperature for oxidation and sulfurization reactions, and Figure 2 is a graph showing the relationship between the amount of corrosion in a low-oxygen, high-sulfur gas atmosphere and the Cr concentration in Crfi-. be. FIG. 3 is a partial sectional view of the furnace wall tube according to the present invention, and FIG. 4 is a schematic diagram of the furnace tube wall. -1...Furnace tube wall, 1a...
... Steel pipe, 2 ... Welded part, 5 - Clad part. tOs+gs2=4Crsδ4+'? (hN 'eO+82 =2Fe S-+θ2 Sρθ −lθθO
Claims (1)
管であって、表面にＣｒ１ｌ〜２６％を含む高Ｃｒ鋼が
、１〜５Ｔｆｒ！ｎ厚さにフラッドされている、ことを
特徴とする低ＮＯｘ燃焼ボイラ用鋼管。A boiler steel pipe that comes into contact with a combustion gas atmosphere with an air-fuel ratio of 1 or less, and a high Cr steel containing 11 to 26% Cr on the surface, has a 1 to 5 Tfr! A steel pipe for a low NOx combustion boiler, characterized in that it is flooded to a thickness of n.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3731284U JPS60148807U (en) | 1984-03-15 | 1984-03-15 | Steel pipes for low NOx combustion boilers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3731284U JPS60148807U (en) | 1984-03-15 | 1984-03-15 | Steel pipes for low NOx combustion boilers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60148807U true JPS60148807U (en) | 1985-10-03 |
Family
ID=30543281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3731284U Pending JPS60148807U (en) | 1984-03-15 | 1984-03-15 | Steel pipes for low NOx combustion boilers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60148807U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105775631A (en) * | 2016-04-13 | 2016-07-20 | 太原科技大学 | Spiral conveyer with length to be flexible |
-
1984
- 1984-03-15 JP JP3731284U patent/JPS60148807U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105775631A (en) * | 2016-04-13 | 2016-07-20 | 太原科技大学 | Spiral conveyer with length to be flexible |
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