JPH05126486A - Exhaust gas economizer - Google Patents
Exhaust gas economizerInfo
- Publication number
- JPH05126486A JPH05126486A JP28993191A JP28993191A JPH05126486A JP H05126486 A JPH05126486 A JP H05126486A JP 28993191 A JP28993191 A JP 28993191A JP 28993191 A JP28993191 A JP 28993191A JP H05126486 A JPH05126486 A JP H05126486A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- tubes
- bolts
- pillar
- attached
- 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.)
- Withdrawn
Links
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は,排ガスエコノマイザ,
特にそのチューブ支持装置に関する。The present invention relates to an exhaust gas economizer,
Particularly, it relates to the tube support device.
【0002】[0002]
【従来の技術】図3は従来の排ガスエコノマイザの一例
を示す縦断側面図,図4はそのチューブ支持装置を示す
斜視図である。まず図3において,1は上部ヘッダー,
2はチューブ,13はヘッダー側管板,14は反ヘッダ
ー側管板,5はケーシング,6は管板支持梁,7はチュ
ーブフィン,8は保温材,9は180°ベンド管,12
は下部ヘッダーをそれぞれ示す。2. Description of the Related Art FIG. 3 is a vertical sectional side view showing an example of a conventional exhaust gas economizer, and FIG. 4 is a perspective view showing a tube supporting device thereof. First, in FIG. 3, 1 is an upper header,
2 is a tube, 13 is a header side tube plate, 14 is a non-header side tube plate, 5 is a casing, 6 is a tube plate supporting beam, 7 is a tube fin, 8 is a heat insulating material, 9 is a 180 ° bend tube, 12
Indicates the lower headers, respectively.
【0003】上部ヘッダー1から櫛状に分岐しているチ
ューブ2には,チューブフィン7が溶接されており,1
80°ベンド管9によって,蛇行状に溶接結合され,パ
ネル化して,そのまま分岐しながら櫛状に下部ヘッダー
12に入る。これ等のチューブは180°ベンド管9の
内側で,管板支持梁6に固定されたヘッダ側管板13と
反ヘッダ側管板14によって支持されている。これら管
板13,14はケーシング5とともに排ガスエコノマイ
ザの炉壁を形成している。ケーシング5の外側は保温材
8によって全面的に被覆され,断熱されている。A tube fin 7 is welded to a tube 2 branched from the upper header 1 in a comb shape.
By the 80 ° bend pipe 9, it is welded and joined in a meandering shape to form a panel, which branches into the lower header 12 in a comb shape. These tubes are supported inside the 180 ° bend pipe 9 by a header side tube plate 13 and an anti-header side tube plate 14 fixed to the tube plate supporting beam 6. These tube plates 13 and 14 together with the casing 5 form the furnace wall of the exhaust gas economizer. The outside of the casing 5 is entirely covered with a heat insulating material 8 to be insulated.
【0004】次に図4において,15は端面櫛歯板,1
6は中間櫛歯板をそれぞれ示す。端面櫛歯板15および
中間櫛歯板16は櫛歯状に半円の溝を有し,図のよう
に,チューブ2を複数板で挟み込んでいる。そして,櫛
歯板相互が部分的なタッグ溶接で結合されて図3の管板
13,14を形成し,チューブ支持装置を構成してい
る。Next, in FIG. 4, 15 is an end face comb tooth plate, 1
Reference numerals 6 denote intermediate comb tooth plates, respectively. The end comb tooth plate 15 and the intermediate comb tooth plate 16 have semi-circular grooves in a comb shape, and the tube 2 is sandwiched by a plurality of plates as shown in the figure. The comb plates are joined together by partial tag welding to form the tube plates 13 and 14 of FIG. 3 to form a tube support device.
【0005】[0005]
【発明が解決しようとする課題】前記従来の排ガスエコ
ノマイザのチューブ支持装置においては,180°ベン
ド管9部は排ガスエコノマイザの炉外にあり,したがっ
て排ガスによる熱交換に関与しない。In the conventional tube supporting device for the exhaust gas economizer, the 180 ° bend pipe 9 is outside the furnace of the exhaust gas economizer and therefore does not participate in heat exchange by the exhaust gas.
【0006】このチューブ支持装置を組立てる際は,図
4に示されるパネルを横置きに寝せた状態で,端面櫛歯
板15,チューブ2,中間櫛歯板16,チューブ,中間
櫛歯板と交互に重ね合わせながら組立てるが,この組立
作業が面倒な上に,チューブと櫛歯板間に隙間が生じる
傾向があり,この隙間はチューブ固有振動数を低下さ
せ,チューブの振動に悪影響を及ぼしていた。When assembling this tube support device, the end face comb tooth plate 15, the tube 2, the intermediate comb tooth plate 16, the tube, and the intermediate comb tooth plate are placed with the panel shown in FIG. Although they are assembled by superposing them alternately, this assembling work is complicated and there is a tendency that a gap is created between the tube and the comb tooth plate. This gap reduces the tube natural frequency and adversely affects the tube vibration. It was
【0007】また,破損したチューブを部分的に換装す
る際は,反ヘッダ側管板4を換装チューブ毎にチューブ
フィン7よりも大きい外径(ベアチューブの時はチュー
ブ外径)で丸くガス切断し,フィンチューブ2,7を反
ヘッダ方向に抜出して新替チューブを挿入後,図5およ
び図6に示されるように,切明けた個所を塞ぎリング1
7で塞ぐ必要があり,換装チューブの抜出し,新替チュ
ーブの挿入が容易ではなかった。When the damaged tube is partially replaced, the anti-header side tube sheet 4 is cut into a round gas with an outer diameter (tube outer diameter in the case of a bare tube) larger than the tube fin 7 for each replacement tube. Then, after removing the fin tubes 2 and 7 in the direction opposite to the header and inserting the new replacement tube, as shown in FIG. 5 and FIG.
It was necessary to close with 7, and it was not easy to pull out the replacement tube and insert a new replacement tube.
【0008】[0008]
【課題を解決するための手段】本発明は,前記従来の課
題を解決するために,互いに平行に上下に配された複数
の水平な直管を180°ベンド管で順次接続してチュー
ブパネルを形成し,上記チューブパネルの前後端部をT
字形断面の柱のウェブ部にUボルトまたはJボルトで取
付けたもの複数組を横方向に並べ,隣接する組の上記柱
のフェイス部の縁を互いに突合わせて溶接結合したこと
を特徴とする排ガスエコノマイザを提案するものであ
る。SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a tube panel in which a plurality of horizontal straight pipes arranged vertically in parallel with each other are sequentially connected by 180 ° bend pipes. The tube panel and the front and rear ends of the tube panel.
Exhaust gas characterized in that a plurality of sets of U-bolts or J-bolts attached to the web portion of a column having a U-shaped cross section are arranged in the lateral direction, and the edges of the face portions of the columns of adjacent sets are butted against each other and welded together. It proposes an economizer.
【0009】[0009]
【作用】本発明は前記構成を備えているので,チューブ
ベンド部も熱交換に関与し,伝熱面積が増加して,その
分熱回収量が増大する。Since the present invention has the above structure, the tube bend portion also participates in heat exchange, the heat transfer area increases, and the amount of heat recovery increases accordingly.
【0010】チューブ支持装置の組立の際は,チューブ
パネルを横置きに寝せた状態で組立工事を行ない,18
0°ベンド管によって直管を溶接結合して蛇行管状のチ
ューブパネルを形成した後,T字形の柱のウェブ部にU
ボルト(またはJボルト)で取付け,チューブパネルと
一体化したT字形の柱(横置きされている)を上下に重
ね合わせてから,T字形の柱のフェイス部同士を溶接結
合するだけなので,組立は容易である。At the time of assembling the tube supporting device, the tube panel is laid horizontally and the assembling work is performed.
After forming a meandering tubular tube panel by welding the straight pipes with a 0 ° bend pipe, U is attached to the web portion of the T-shaped column.
Attach with bolts (or J bolts), stack the T-shaped pillars (horizontally placed) integrated with the tube panel on top of each other, and then simply weld the face parts of the T-shaped pillars together for assembly. Is easy.
【0011】また,破損したチューブを交換する場合
は,T字形断面の柱とチューブパネルとで構成された組
ごとにカセットとして引抜き,外部で修理した後,その
まま挿入して復旧することができるので,チューブの交
換工事は容易である。When a damaged tube is to be replaced, it is possible to restore the set by pulling it out as a cassette for each set composed of a column having a T-shaped cross section and the tube panel, repairing it externally, and inserting it as it is. , Tube replacement work is easy.
【0012】[0012]
【実施例】図1は本発明の一実施例を示す縦断側面図,
図2はそのチューブ支持装置を示す斜視図である。FIG. 1 is a vertical sectional side view showing an embodiment of the present invention,
FIG. 2 is a perspective view showing the tube supporting device.
【0013】まず図1において,1は上部ヘッダ,2は
チューブ(直管),3はヘッダ側管板,4は反ヘッダ側
管板,5はケーシング,6は管板支持梁,7はチューブ
フィン,8は保温材,9は180°ベンド管,11はU
ボルト(またはJボルト),12は下部ヘッダをそれぞ
れ示す。図中,ヘッダ側管板3,反ヘッダ側管板4,U
ボルト11から成るチューブ支持装置以外は,前記図3
により説明した従来のものの構造と同様である。First, in FIG. 1, 1 is an upper header, 2 is a tube (straight pipe), 3 is a header side tube plate, 4 is a non-header side tube plate, 5 is a casing, 6 is a tube plate supporting beam, and 7 is a tube. Fins, 8 heat insulating material, 9 180 ° bend pipe, 11 U
Bolts (or J-bolts) and 12 indicate lower headers, respectively. In the figure, header side tube sheet 3, counter header side tube sheet 4, U
3 except the tube supporting device including the bolt 11.
The structure is the same as that of the conventional one described by.
【0014】次に図2において,2はチューブ(直
管),7はチューブフィン,9は180°ベンド管,1
0はT字形断面の柱,11はUボルト(またはJボル
ト)をそれぞれ示す。ヘッダ側管板3および反ヘッダ側
管板4は,180°ベンド管9よりも外側に位置し,T
字形断面の柱10のフェイス部(T字中の横線部)の縁
を互いに突合わせて溶接結合することによって,構成さ
れている。フィンチューブ(直管)2,7は,180°
ベンド管9によって順次溶接結合され,蛇行管状のチュ
ーブパネルを形成後,T字形断面の柱10のウェブ部
(T字中の縦線部)にUボルト(またはJボルト)で取
付けてカセットとする。チューブの熱膨脹はUボルトに
よって吸収される。また,チューブパネルと一体化した
T字形断面の柱を複数組横方向に並べ,隣接する組の上
記柱同士を部分的なタッグ溶接で結合し,一枚の管板と
することにより,剛性を向上させる。In FIG. 2, 2 is a tube (straight tube), 7 is a tube fin, 9 is a 180 ° bend tube, 1
Reference numeral 0 indicates a column having a T-shaped cross section, and reference numeral 11 indicates a U bolt (or J bolt). The header side tube sheet 3 and the non-header side tube sheet 4 are located outside the 180 ° bend tube 9,
It is constituted by abutting the edges of the face portions (horizontal lines in the T-shape) of the pillars 10 having a V-shaped cross section and welding them together. Fin tubes (straight tubes) 2 and 7 are 180 °
After forming a meandering tubular tube panel, which is sequentially welded together by the bend pipe 9, it is attached to the web portion (vertical line portion in the T-shape) of the column 10 having a T-shaped cross section with U bolts (or J bolts) to form a cassette. .. The thermal expansion of the tube is absorbed by the U bolt. In addition, by arranging multiple sets of columns with a T-shaped cross-section integrated with the tube panel in the lateral direction and connecting the columns of adjacent sets with partial tag welding to form a single tube sheet, rigidity is improved. Improve.
【0015】本実施例では従来と異なり,管板3,4が
180°ベンド管の外方に位置している。したがって,
チューブベンド部も熱交換に関与し,伝熱面積が約3%
増加して,その分熱回収量が増大する。In this embodiment, unlike the prior art, the tube plates 3 and 4 are located outside the 180 ° bend tube. Therefore,
The tube bend part also participates in heat exchange, and the heat transfer area is about 3%.
The amount of heat recovery increases accordingly.
【0016】[0016]
【発明の効果】本発明の排ガスエコノマイザは,チュー
ブ支持装置が前記のとおり構成されているので,伝熱面
積が増加し,その分熱回収量が増大する。In the exhaust gas economizer of the present invention, since the tube supporting device is constructed as described above, the heat transfer area is increased and the heat recovery amount is increased accordingly.
【0017】チューブ支持装置の組立の際は,チューブ
パネルを横置きに寝せた状態にて組立工事を施工し,1
80°ベンド管によって直管を溶接結合して蛇行管状の
チューブパネルを形成した後,T字形の柱のウェブ部に
Uボルト(またはJボルト)で取付け,チューブパネル
と一体化したT字形の柱を上下に重ね合わせてから,T
字形の柱のフェイス部同士を部分的なタッグ溶接で結合
するだけなので,組立ては容易である。When assembling the tube support device, the assembly work is carried out with the tube panel lying horizontally.
After forming a meandering tubular tube panel by welding and connecting straight pipes with an 80 ° bend pipe, it is attached to the web portion of the T-shaped column with U bolts (or J bolts), and the T-shaped column is integrated with the tube panel. After stacking the
Assembling is easy because the face parts of the V-shaped column are only joined by partial tag welding.
【0018】また,破損したチューブを交換する場合
は,T字形断面の柱とチューブパネルとで構成された組
ごとにカセットとして引抜き,外部で修理した後,その
まま挿入して復旧することができるので,チューブの交
換工事は容易である。When a damaged tube is to be replaced, each set composed of a column having a T-shaped cross section and a tube panel can be pulled out as a cassette, repaired externally, and then directly inserted for restoration. , Tube replacement work is easy.
【図1】図1は本発明の一実施例を示す縦断側面図であ
る。FIG. 1 is a vertical sectional side view showing an embodiment of the present invention.
【図2】図2は上記実施例のチューブ支持装置を示す斜
視図である。FIG. 2 is a perspective view showing the tube support device of the above embodiment.
【図3】図3は従来の排ガスエコノマイザの一例を示す
縦断側面図である。FIG. 3 is a vertical cross-sectional side view showing an example of a conventional exhaust gas economizer.
【図4】図4は上記従来の排ガスエコノマイザのチュー
ブ支持装置を示す斜視図である。FIG. 4 is a perspective view showing a tube support device of the conventional exhaust gas economizer.
【図5】図5は従来のチューブ交換状況を示す管板正面
図である。FIG. 5 is a tube plate front view showing a conventional tube replacement state.
【図6】図6は図5のVI−VI矢視断面図である。6 is a sectional view taken along the line VI-VI of FIG.
1 上部ヘッダ 2 チューブ(直管) 3 ヘッダ側管板 4 反ヘッダ側管板 5 ケーシング 6 管板支持梁 7 チューブフィン 8 保温材 9 180°ベンド管 10 T字形断面の柱 11 UボルトまたはJボルト 12 下部ヘッダ 13 ヘッダ側管板 14 反ヘッダ側管板 15 端面櫛歯板 16 中間櫛歯板 17 塞ぎリング 1 Upper Header 2 Tube (Straight Pipe) 3 Header Side Tube Sheet 4 Anti-Header Side Tube Sheet 5 Casing 6 Tube Sheet Support Beam 7 Tube Fin 8 Heat Insulating Material 9 180 ° Bend Tube 10 T-Shaped Column 11 U Bolt or J Bolt 12 Lower Header 13 Header Side Tube Plate 14 Anti-Header Side Tube Plate 15 End Face Comb Plate 16 Intermediate Comb Plate 17 Closing Ring
Claims (1)
な直管を180°ベンド管で順次接続してチューブパネ
ルを形成し,上記チューブパネルの前後端部をT字形断
面の柱のウェブ部にUボルトまたはJボルトで取付けた
もの複数組を横方向に並べ,隣接する組の上記柱のフェ
イス部の縁を互いに突合わせて溶接結合したことを特徴
とする排ガスエコノマイザ。1. A plurality of horizontal straight pipes arranged vertically in parallel with each other are sequentially connected by a 180 ° bend pipe to form a tube panel. An exhaust gas economizer characterized in that a plurality of sets, which are attached by U-bolts or J-bolts to the parts, are arranged in the lateral direction, and the edges of the face portions of the adjacent columns of the adjacent sets are butted against each other and welded together.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28993191A JPH05126486A (en) | 1991-11-06 | 1991-11-06 | Exhaust gas economizer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP28993191A JPH05126486A (en) | 1991-11-06 | 1991-11-06 | Exhaust gas economizer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH05126486A true JPH05126486A (en) | 1993-05-21 |
Family
ID=17749607
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP28993191A Withdrawn JPH05126486A (en) | 1991-11-06 | 1991-11-06 | Exhaust gas economizer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH05126486A (en) |
-
1991
- 1991-11-06 JP JP28993191A patent/JPH05126486A/en not_active Withdrawn
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19990204 |