JPH06307601A - Water-cooled wall for boiler furnace - Google Patents
Water-cooled wall for boiler furnaceInfo
- Publication number
- JPH06307601A JPH06307601A JP9926193A JP9926193A JPH06307601A JP H06307601 A JPH06307601 A JP H06307601A JP 9926193 A JP9926193 A JP 9926193A JP 9926193 A JP9926193 A JP 9926193A JP H06307601 A JPH06307601 A JP H06307601A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- water wall
- take
- pipe
- water
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 239000012528 membrane Substances 0.000 claims abstract description 17
- 238000001816 cooling Methods 0.000 claims description 18
- 238000005452 bending Methods 0.000 abstract description 12
- 238000003466 welding Methods 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 3
- 230000006866 deterioration Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は垂直管構成のボイラ火
炉水冷壁に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boiler furnace water cooling wall having a vertical tube structure.
【０００２】[0002]
【従来の技術】図１１は従来のボイラ火炉水冷壁を示す
概略図、図１２は図１１のＦ部詳細図、図１３は図１２
のＧ矢視図である。図に示すように、火炉１は一次水壁
管３、二次水壁管８、三次水壁管１３によって構成さ
れ、水壁管３、８、１３はそれぞれ入口管寄２、７、１
２を有し、また水壁管３、８、１３はそれぞれ出口管寄
４、９、１４を有し、出口管寄４と入口管寄７とが連絡
管５によって接続され、出口管寄９と入口管寄１２とが
連絡管１０によって接続され、連結管５、１０にそれぞ
れ混合管寄６、１１が設けられている。また、水壁管１
５の間にメンブレンバー１６が溶接によって固定され、
出口管寄４、入口管寄７にそれぞれ接続される曲管３
ａ、８ａの部分にはメンブレンバー１６が固定されてお
らず、フィン１７、１８が溶接によって固定されてい
る。そして、熱膨張吸収の目的からメンブレンバー１６
とフィン１７、１８との間（Ｈ部）、フィン１７とフィ
ン１８との間（Ｊ部）に隙間が設けられている。また、
曲管３ａ、８ａの外側にキャスタ受け３１が固定され、
曲管３ａ、８ａの部分の外側がキャスタ３０で覆われ、
キャスタ３０がキャスタ受け３１によって支持されてい
る。なお、水壁管８と水壁管１３との間の炉外取出部の
構造は水壁管３と水壁管８との間の炉外取出部の構造と
同様である。2. Description of the Related Art FIG. 11 is a schematic view showing a conventional boiler furnace water cooling wall, FIG. 12 is a detailed view of an F portion of FIG. 11, and FIG.
FIG. As shown in the figure, the furnace 1 is composed of a primary water wall pipe 3, a secondary water wall pipe 8 and a tertiary water wall pipe 13, and the water wall pipes 3, 8 and 13 are respectively inlet pipe sides 2, 7, 1
2 and the water wall pipes 3, 8 and 13 have outlet pipe lines 4, 9 and 14, respectively, and the outlet pipe line 4 and the inlet pipe line 7 are connected by a connecting pipe 5 and an outlet pipe line 9 And the inlet pipe side 12 are connected by the connecting pipe 10, and the connecting pipes 5 and 10 are provided with the mixing pipe sides 6 and 11, respectively. Also, the water wall tube 1
5, the membrane bar 16 is fixed by welding,
Curved pipe 3 connected to the outlet pipe 4 and the inlet pipe 7, respectively
The membrane bar 16 is not fixed to the portions a and 8a, but the fins 17 and 18 are fixed by welding. For the purpose of absorbing thermal expansion, the membrane bar 16
Gaps are provided between the fins 17 and 18 (H portion) and between the fins 17 and 18 (J portion). Also,
The caster holder 31 is fixed to the outside of the curved tubes 3a and 8a,
The casters 30 cover the outside of the bent tubes 3a and 8a,
The caster 30 is supported by the caster receiver 31. The structure of the out-of-reactor between the water wall pipe 8 and the water wall pipe 13 is similar to the structure of the out-of-reactor part between the water wall pipe 3 and the water wall pipe 8.
【０００３】このボイラ火炉水冷壁においては、水壁管
３、８、１３内の流体を混合管寄６、１１において混合
することができるから、流体のエンタルピまたは温度、
圧力を均一に保持することができる。また、キャスタ３
０が設けられているから、曲管３ａ、８ａ部で火炉１内
からガスが噴出するのを防止することができる。In this boiler furnace water cooling wall, the fluid in the water wall tubes 3, 8 and 13 can be mixed in the mixing tubes 6 and 11, so that the enthalpy or temperature of the fluid,
The pressure can be kept uniform. Also, casters 3
Since 0 is provided, it is possible to prevent the gas from spouting from the inside of the furnace 1 at the bent tubes 3a and 8a.
【０００４】[0004]
【発明が解決しようとする課題】しかし、このようなボ
イラ火炉水冷壁においては、フィン１７、１８は曲管３
ａ、８ａによって冷却されにくいから、長時間使用する
とフィン１７、１８が焼損することがある。また、キャ
スタ３０は振動によって脱落することがあり、この場合
には火炉ガスシール機能が著しく低下する。また、曲管
３ａ、８ａの部分すなわちメンブレンバー１６が設けら
れていない部分では、隣接する水壁管１５の動きが互い
に拘束されていないから、メンブレンバー１６の端部に
応力が集中し、曲管３ａ、８ａ、水壁管１５のＫ部にク
ラックが発生することがある。However, in such a boiler furnace water cooling wall, the fins 17 and 18 are bent tubes 3
Since it is difficult for the fins a and 8a to cool the fins, the fins 17 and 18 may burn out when used for a long time. Further, the casters 30 may fall off due to vibration, and in this case, the furnace gas sealing function is significantly deteriorated. Further, in the curved pipes 3a and 8a, that is, in the portions where the membrane bar 16 is not provided, the movements of the adjacent water wall pipes 15 are not restricted to each other. Cracks may occur in the K portions of the pipes 3a and 8a and the water wall pipe 15.
【０００５】この発明は上述の課題を解決するためにな
されたもので、炉外取出部が焼損することがなく、火炉
ガスシール機能が低下することがなく、水壁管にクラッ
クが発生することがないボイラ火炉水冷壁を提供するこ
とを目的とする。The present invention has been made in order to solve the above-mentioned problems, and the burnout portion of the furnace is not burned, the furnace gas seal function is not deteriorated, and cracks are generated in the water wall pipe. The purpose is to provide a boiler furnace water cooling wall without.
【０００６】[0006]
【課題を解決するための手段】この目的を達成するた
め、この発明においては、水壁管の間にメンブレンバー
が設けられかつ炉外取出部が設けられたボイラ火炉水冷
壁において、取出屈曲管と戻入屈曲管とが上記水壁管の
径と等しい幅を有する連結部で連結された流体取出ピー
スを上記炉外取出部に固定する。In order to achieve this object, in the present invention, in a boiler cooling water wall having a membrane bar provided between water wall pipes and an outside extraction portion, an extraction bent pipe is provided. And the return bent pipe are connected by a connecting portion having a width equal to the diameter of the water wall pipe, and the fluid takeout piece is fixed to the outside takeout portion.
【０００７】[0007]
【作用】このボイラ火炉水冷壁においては、流体取出ピ
ースの連結部が取出屈曲管、戻入屈曲管によって冷却さ
れ、また炉外取出部のメンブレンバーに切欠き部を設け
る必要がなく、流体取出ピースとメンブレンバーとの間
に隙間が生ぜず、また炉外取出部においても隣接する水
壁管の動きを互いに拘束することができる。In this boiler furnace water cooling wall, the connecting portion of the fluid take-out piece is cooled by the take-out bent pipe and the return bend pipe, and it is not necessary to provide a notch in the membrane bar of the furnace take-out part, and the fluid take-out piece is not required. There is no gap between the membrane bar and the membrane bar, and the movements of the adjacent water wall pipes can be restrained from each other even at the outside of the furnace.
【０００８】[0008]
【実施例】図２はこの発明に係るボイラ火炉水冷壁を示
す概略図、図１は図２のＡ部詳細図、図３は図１のＢ矢
視図、図４は図１等に示したボイラ火炉水冷壁に用いる
流体取出ピースを示す図、図５は図４のＣ−Ｃ断面図で
ある。図に示すように、水壁管３と水壁管８との間の炉
外取出部のメンブレンバー１６に流体取出ピース２０が
溶接によって固定され、流体取出ピース２０は取出屈曲
管２３と戻入屈曲管２４とを有しており、取出屈曲管２
３と戻入屈曲管２４とは水壁管１５の径と等しい幅を有
する柱状の連結部２５によって連結されている。出口管
寄４にヘッダ入口管２１が接続され、入口管寄７にヘッ
ダ出口管２２が接続され、取出屈曲管２３の一端が水壁
管３に接続され、取出屈曲管２３の他端がヘッダ入口管
２１に接続され、戻入屈曲管２４の一端がヘッダ出口管
２２に接続され、戻入屈曲管２４の他端が水壁管８に接
続されている。なお、水壁管８と水壁管１３との間の炉
外取出部の構造は水壁管３と水壁管８との間の炉外取出
部の構造と同様である。FIG. 2 is a schematic view showing a water wall of a boiler furnace according to the present invention, FIG. 1 is a detailed view of a portion A of FIG. 2, FIG. 3 is a view taken in the direction of arrow B of FIG. 1, and FIG. 4 is shown in FIG. FIG. 5 is a view showing a fluid take-out piece used for the boiler furnace water cooling wall, and FIG. 5 is a sectional view taken along line CC of FIG. As shown in the figure, the fluid take-out piece 20 is fixed by welding to the membrane bar 16 of the furnace take-out section between the water wall tube 3 and the water wall tube 8, and the fluid take-out piece 20 is bent into the take-out bending tube 23 and the return bend. And a bent tube 2 having a tube 24.
3 and the return bending pipe 24 are connected by a columnar connecting portion 25 having a width equal to the diameter of the water wall pipe 15. The header inlet pipe 21 is connected to the outlet pipe side 4, the header outlet pipe 22 is connected to the inlet pipe side 7, one end of the take-out bent pipe 23 is connected to the water wall pipe 3, and the other end of the take-out bent pipe 23 is a header. The return bend pipe 24 is connected to the inlet pipe 21, one end of the return bend pipe 24 is connected to the header outlet pipe 22, and the other end of the return bend pipe 24 is connected to the water wall pipe 8. The structure of the out-of-reactor between the water wall pipe 8 and the water wall pipe 13 is the same as the structure of the out-of-reactor part between the water wall pipe 3 and the water wall pipe 8.
【０００９】このボイラ火炉水冷壁においては、流体取
出ピース２０の連結部２５が取出屈曲管２３、戻入屈曲
管２４によって冷却されるから、長時間使用したとして
も炉外取出部が焼損することがなく、また炉外取出部の
メンブレンバー１６に切欠き部を設ける必要がなく、流
体取出ピース２０とメンブレンバー１６との間に隙間が
生じないから、火炉ガスシール機能が低下することがな
く、また炉外取出部においても隣接する水壁管１５の動
きを互いに拘束することができるから、水壁管３、８、
１５にクラックが発生することがない。In this boiler furnace water cooling wall, since the connecting portion 25 of the fluid take-out piece 20 is cooled by the take-out bent pipe 23 and the return bend pipe 24, the take-out portion outside the furnace may be burned out even if it is used for a long time. In addition, since it is not necessary to provide a cutout portion in the membrane bar 16 at the outside of the furnace, and no gap is created between the fluid take-out piece 20 and the membrane bar 16, the furnace gas sealing function does not deteriorate, In addition, since the movements of the adjacent water wall pipes 15 can be restrained from each other even at the outside of the reactor, the water wall pipes 3, 8,
No crack is generated in 15.
【００１０】図６はこの発明に係る他のボイラ火炉水冷
壁に用いる流体取出ピースを示す図、図７は図６のＤ−
Ｄ断面図である。図に示すように、戻入屈曲管２４ａの
内径は取出屈曲管２３の内径よりも小さい。この流体取
出ピースは異径継手としての機能も備えている。FIG. 6 is a view showing a fluid take-out piece used for another boiler furnace water cooling wall according to the present invention, and FIG. 7 is D- of FIG.
It is a D sectional view. As shown in the drawing, the inner diameter of the return bending tube 24 a is smaller than the inner diameter of the extraction bending tube 23. This fluid take-out piece also has a function as a different diameter joint.
【００１１】図８はこの発明に係る他のボイラ火炉水冷
壁に用いる流体取出ピースを示す正面図、図９は図８に
示した流体取出ピースを示す側面図、図１０は図８のＥ
−Ｅ断面図である。図に示すように、取出屈曲管２３と
戻入屈曲管２４とは水壁管１５の径と等しい幅を有する
板状の連結部２６によって連結されている。FIG. 8 is a front view showing a fluid extraction piece used for another boiler furnace water cooling wall according to the present invention, FIG. 9 is a side view showing the fluid extraction piece shown in FIG. 8, and FIG.
It is a -E sectional view. As shown in the figure, the extraction bent pipe 23 and the return bent pipe 24 are connected by a plate-like connecting portion 26 having a width equal to the diameter of the water wall pipe 15.
【００１２】[0012]
【発明の効果】以上説明したように、この発明に係るボ
イラ火炉水冷壁においては、流体取出ピースの連結部が
取出屈曲管、戻入屈曲管によって冷却されるから、長時
間使用したとしても炉外取出部が焼損することがなく、
また炉外取出部のメンブレンバーに切欠き部を設ける必
要がなく、流体取出ピースとメンブレンバーとの間に隙
間が生じないから、火炉ガスシール機能が低下すること
がなく、また炉外取出部においても隣接する水壁管の動
きを互いに拘束することができるから、メンブレンバー
の端部に応力が集中することがなく、水壁管にクラック
が発生することがない。このように、この発明の効果は
顕著である。As described above, in the boiler furnace water cooling wall according to the present invention, the connecting portion of the fluid take-out piece is cooled by the take-out bent pipe and the return bent pipe. There is no burning of the ejection part,
In addition, it is not necessary to provide a notch in the membrane bar of the out-of-furnace part, and since there is no gap between the fluid take-out piece and the membrane bar, the furnace gas seal function does not deteriorate, and the out-furnace take-out part Also in (1), since the movements of the adjacent water wall pipes can be restrained from each other, the stress is not concentrated on the end portion of the membrane bar, and the water wall pipe is not cracked. As described above, the effect of the present invention is remarkable.
【図１】図２のＡ部詳細図である。FIG. 1 is a detailed view of part A in FIG.
【図２】この発明に係るボイラ火炉水冷壁を示す概略図
である。FIG. 2 is a schematic diagram showing a boiler furnace water cooling wall according to the present invention.
【図３】図１のＢ矢視図である。FIG. 3 is a view on arrow B of FIG.
【図４】図１等に示したボイラ火炉水冷壁に用いる流体
取出ピースを示す図である。FIG. 4 is a diagram showing a fluid take-out piece used for the boiler furnace water cooling wall shown in FIG. 1 and the like.
【図５】図４のＣ−Ｃ断面図である。5 is a cross-sectional view taken along line CC of FIG.
【図６】この発明に係る他のボイラ火炉水冷壁に用いる
流体取出ピースを示す図である。FIG. 6 is a view showing a fluid extraction piece used for another boiler furnace water cooling wall according to the present invention.
【図７】図６のＤ−Ｄ断面図である。7 is a cross-sectional view taken along the line DD of FIG.
【図８】この発明に係る他のボイラ火炉水冷壁に用いる
流体取出ピースを示す正面図である。FIG. 8 is a front view showing a fluid take-out piece used for another boiler furnace water cooling wall according to the present invention.
【図９】図８に示した流体取出ピースを示す側面図であ
る。9 is a side view showing the fluid take-out piece shown in FIG. 8. FIG.
【図１０】図８のＥ−Ｅ断面図である。10 is a cross-sectional view taken along line EE of FIG.
【図１１】従来のボイラ火炉水冷壁を示す概略図であ
る。FIG. 11 is a schematic view showing a conventional boiler furnace water cooling wall.
【図１２】図１１のＦ部詳細図である。FIG. 12 is a detailed view of an F portion of FIG.
【図１３】図１２のＧ矢視図である。13 is a view on arrow G in FIG.
３…一次水壁管 ８…二次水壁管 １３…三次水壁管 １５…水壁管 １６…メンブレンバー ２０…流体取出ピース ２３…取出屈曲管 ２４…戻入屈曲管 ２５…連結部 ２６…連結部 3 ... Primary water wall pipe 8 ... Secondary water wall pipe 13 ... Tertiary water wall pipe 15 ... Water wall pipe 16 ... Membrane bar 20 ... Fluid extraction piece 23 ... Extraction bending pipe 24 ... Return bending pipe 25 ... Connection part 26 ... Connection Department
Claims (1)
つ炉外取出部が設けられたボイラ火炉水冷壁において、
取出屈曲管と戻入屈曲管とが上記水壁管の径と等しい幅
を有する連結部で連結された流体取出ピースを上記炉外
取出部に固定したことを特徴とするボイラ火炉水冷壁。1. A boiler furnace water cooling wall in which a membrane bar is provided between water wall pipes and a furnace take-out portion is provided,
A boiler water cooling wall for a boiler furnace characterized in that a fluid take-out piece in which a take-out bent pipe and a return bent pipe are connected by a connecting portion having a width equal to the diameter of the water wall pipe is fixed to the outside take-out portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9926193A JPH06307601A (en) | 1993-04-26 | 1993-04-26 | Water-cooled wall for boiler furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9926193A JPH06307601A (en) | 1993-04-26 | 1993-04-26 | Water-cooled wall for boiler furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06307601A true JPH06307601A (en) | 1994-11-01 |
Family
ID=14242773
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9926193A Pending JPH06307601A (en) | 1993-04-26 | 1993-04-26 | Water-cooled wall for boiler furnace |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06307601A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008185309A (en) * | 2007-01-31 | 2008-08-14 | Mitsubishi Heavy Ind Ltd | Furnace wall structure of entrance connecting portion |
| WO2011063613A1 (en) * | 2009-11-30 | 2011-06-03 | 上海锅炉厂有限公司 | Sealing structure of water cooling screen passing through water wall |
-
1993
- 1993-04-26 JP JP9926193A patent/JPH06307601A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008185309A (en) * | 2007-01-31 | 2008-08-14 | Mitsubishi Heavy Ind Ltd | Furnace wall structure of entrance connecting portion |
| WO2011063613A1 (en) * | 2009-11-30 | 2011-06-03 | 上海锅炉厂有限公司 | Sealing structure of water cooling screen passing through water wall |
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