JPH11281002A - Method for assembling and installing heat recovery apparatus in boiler and jig for assembling heat recovery apparatus - Google Patents

Method for assembling and installing heat recovery apparatus in boiler and jig for assembling heat recovery apparatus

Info

Publication number
JPH11281002A
JPH11281002A JP8123198A JP8123198A JPH11281002A JP H11281002 A JPH11281002 A JP H11281002A JP 8123198 A JP8123198 A JP 8123198A JP 8123198 A JP8123198 A JP 8123198A JP H11281002 A JPH11281002 A JP H11281002A
Authority
JP
Japan
Prior art keywords
boiler
assembling
heat recovery
heat transfer
transfer tube
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
Application number
JP8123198A
Other languages
Japanese (ja)
Inventor
Tadayoshi Inoue
忠義 井上
Hiroki Kawashima
広樹 河島
Toshihiro Masaki
敏裕 正木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Power Ltd
Original Assignee
Babcock Hitachi KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Babcock Hitachi KK filed Critical Babcock Hitachi KK
Priority to JP8123198A priority Critical patent/JPH11281002A/en
Publication of JPH11281002A publication Critical patent/JPH11281002A/en
Pending legal-status Critical Current

Links

Landscapes

  • Chimneys And Flues (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide methods for assembling and installing a heat recovery apparatus and a jig for assembling the heat recovery apparatus in a boiler capable of reducing a period of construction and elevated spot work when coils are installed. SOLUTION: A transportation frame 41 is formed by a method wherein six frame posts 43 are oppositely fixed on an upper surface of a post base 42 formed into a u-shape and connected with plurality of horizontal beams 44. Support beams 45 and spacers 47 are allowed to protrude to both sides of a space between left and right frame posts 43 and arranged on an upper part and a lower part of the left and right frame posts 43. A front partition wall 12 and a middle partition wall 13 are positioned by the support beams 45 and the spacers 47, and coils 25 are arranged between the front partition wall 12 and the middle partition wall 13. This is arranged inside a boiler body in an assembled state.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、発電等を目的とす
る大型のボイラにおける熱回収装置の組立方法および据
え付け方法並びに熱回収装置の組立て治具に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for assembling and installing a heat recovery device in a large-sized boiler for power generation and the like, and a jig for assembling the heat recovery device.

【0002】[0002]

【従来の技術】図8は事業用火力発電用の大型ボイラの
断面図である。このような大型ボイラの場合、柱および
梁などの支持鉄骨でボイラ建屋Fを建設し、ボイラ本体
1はボイラ建屋Fの最上部の天井大梁2を支持点とする
スリングボルト3により吊り下げる。ボイラ本体1は、
メンブレンまたはフインなどの平板状の伝熱部品と伝熱
管とを交互に並べて溶接により一体化した壁(以下、伝
熱管壁という。)で周囲を囲み、伝熱管壁で形成した天
井4で上部を塞いだ構成となっており、伝熱管壁の外側
は必要により保温処置が施されている。6はペントハウ
スで、天井大梁2と天井4との間に形成される空間であ
る。
2. Description of the Related Art FIG. 8 is a sectional view of a large-scale boiler for thermal power generation for business use. In the case of such a large-sized boiler, a boiler building F is constructed with supporting steel frames such as columns and beams, and the boiler body 1 is suspended by sling bolts 3 having a ceiling girder 2 at the top of the boiler building F as a support point. The boiler body 1
A heat transfer tube and a flat heat transfer component such as a membrane or a fin are alternately arranged and surrounded by a welded wall (hereinafter referred to as a heat transfer tube wall). The upper part is closed, and the outside of the heat transfer tube wall is subjected to heat insulation treatment as necessary. Reference numeral 6 denotes a penthouse, which is a space formed between the ceiling girders 2 and the ceiling 4.

【0003】ボイラ本体1の内部は、燃料を燃焼させる
火炉室7、前側壁室8、後部伝熱壁室9に大きく分けら
れ、火炉室7で発生した燃焼排ガスは上記の順に流れ
る。火炉室7と前側壁室8の内部には、多数の吊り下げ
伝熱管装置10がペントハウス6内に設けられたそれぞ
れの出口管寄せ11を支持点としてスリングボルト3に
より天井大梁2から吊り下げられている。なお、大型ボ
イラの場合、最上部の出口管寄せ11は地上から70m
以上の高さになる。それぞれ伝熱管壁で形成した前隔壁
12と後隔壁14で囲まれた後部伝熱室9は、伝熱管壁
で形成した中央隔壁13により、後部伝熱壁前室9aと
後部伝熱壁後室9bに分割されている。15は吊り下げ
管である。後部伝熱壁前室9aには熱回収装置である再
熱器20aが、後部伝熱壁後室9bには熱回収装置であ
る過熱器20b、蒸発器20c、節炭器20dがそれぞ
れ配置されている。再熱器20a、過熱器20b、蒸発
器20cおよび節炭器20dにはそれぞれ後述する多数
のコイルが伝熱管壁の伝熱管のピッチに合わせて、すな
わち紙面と垂直なボイラ炉幅方向に約100mmの間隔
で、それぞれ100〜300列配列されている。また、
図示のボイラの場合、再熱器20aが高さ方向に3段配
列されている。
The interior of the boiler body 1 is roughly divided into a furnace chamber 7, in which fuel is burned, a front wall chamber 8, and a rear heat transfer wall chamber 9, and the combustion exhaust gas generated in the furnace chamber 7 flows in the above order. Inside the furnace chamber 7 and the front wall chamber 8, a number of suspended heat transfer tube devices 10 are suspended from the ceiling girders 2 by the sling bolts 3 with the respective outlet headers 11 provided in the penthouse 6 as supporting points. ing. In the case of a large boiler, the uppermost outlet header 11 is 70 m from the ground.
It will be more than the height. The rear heat transfer chamber 9 surrounded by the front partition wall 12 and the rear partition wall 14 formed of the heat transfer tube wall, respectively, has the rear wall 9a and the rear heat transfer wall 9a formed by the central partition wall 13 formed by the heat transfer tube wall. It is divided into a rear chamber 9b. Reference numeral 15 denotes a suspension tube. A reheater 20a as a heat recovery device is disposed in the rear heat transfer wall front chamber 9a, and a superheater 20b, an evaporator 20c, and a economizer 20d as heat recovery devices are disposed in the rear heat transfer wall rear chamber 9b. ing. In the reheater 20a, the superheater 20b, the evaporator 20c, and the economizer 20d, a large number of coils described later are respectively arranged in accordance with the pitch of the heat transfer tubes on the heat transfer tube wall, that is, in the boiler furnace width direction perpendicular to the paper surface. 100 to 300 rows are arranged at intervals of 100 mm. Also,
In the illustrated boiler, the reheaters 20a are arranged in three stages in the height direction.

【0004】次に、ボイラの組立て手順を説明する。始
めに、熱回収装置の部品であるコイルについて説明す
る。図9は従来のコイルの荷姿の鳥瞰図である。コイル
25はそれぞれ複数(通常4〜6本)のパイプをそれぞ
れ曲げ加工および溶接により渦巻状に整形し、まとめて
1個にする。26はエンドサポート金具で、コイル25
の両側端部に固定されている。エンドサポート金具26
の角部には穴26aが設けられている。工場で製作され
たコイル25は水平に10個程度重ねられ、バンド27
により固定されてボイラ建設現場に発送される。
Next, a procedure for assembling the boiler will be described. First, a coil which is a component of the heat recovery device will be described. FIG. 9 is a bird's-eye view of a conventional coil package. Each of the coils 25 is formed into a spiral shape by bending and welding a plurality (usually 4 to 6) of pipes, respectively, and collectively forming one pipe. 26 is an end support bracket, and a coil 25
Is fixed to both ends. End support bracket 26
Is provided with a hole 26a at the corner of. About 10 coils 25 manufactured in a factory are horizontally stacked,
And sent to the boiler construction site.

【0005】次に、ボイラ建設現場における組立て手順
を説明する。図10は建設途中のボイラの断面図であ
る。図11は据え付け手順を説明する図であり、(a)
は正面図、(b)は側面図である。図12はコイル25
を固定する部分の部分組立図で、(a)は正面図、
(b)は側面図、(c)は平面図である。図11で、3
0はセンタージャッキであり、天井大梁2に固定されて
いる。31はセンターボルトで、センタージャッキ30
により巻き上げ、巻き下ろしされる。32は保持治具
で、センターボルト31と伝熱管壁で形成したスクリー
ン33あるいはスクリーン34を接続する。35は出口
管寄せ11に設けられた支持金具である。スクリーン3
3、34には図12に示すサポート金具28が固定され
ている。
Next, an assembling procedure at a boiler construction site will be described. FIG. 10 is a sectional view of the boiler under construction. FIG. 11 is a diagram for explaining the installation procedure.
Is a front view, and (b) is a side view. FIG.
(A) is a front view,
(B) is a side view, and (c) is a plan view. In FIG. 11, 3
Reference numeral 0 denotes a center jack, which is fixed to the ceiling beam 2. 31 is a center bolt, and a center jack 30
To be wound up and down. A holding jig 32 connects the center bolt 31 to a screen 33 or a screen 34 formed by the heat transfer tube wall. Reference numeral 35 denotes a support fitting provided on the outlet header 11. Screen 3
The support fitting 28 shown in FIG.

【0006】ボイラ建屋Fの建方が終了すると、火炉室
7側から順次内部装置の据え付けを行なう。次に、熱回
収装置である再熱器20a、過熱器20b、蒸発器20
c、節炭器20dの組立て手順を説明する。 (1)スクリーン33を吊り上げ、スリングボルト3と
支持金具35を接続してスクリーン33を天井大梁2に
吊り下げる。 (2)炉幅方向の長さが3〜5メートルの前隔壁12を
吊り上げ、スクリーン33の下部に仮固定する。 (3)上記手順(1)、(2)と同様の手順により中央
隔壁13をスクリーン34の下部に仮固定する。 (4)スクリーン33と前隔壁12およびスクリーン3
4と中央隔壁13の管部を溶接により接合する。 (5)コイル25を前隔壁12と中央隔壁13の間に配
置する。すなわち、バンド27を外し、コイル25を1
個ずつ吊り上げ、図12に示すように、サポート金具2
8の突起28aに穴26aを嵌合させる。なお、コイル
25は1列分を下段側から順に組み込む。 (6)1列分の上下各段のコイル25を溶接する。 (7)上記手順(5)、(6)を総ての列について行
う。 (8)炉幅が長い場合には上記手順(1)〜(7)を繰
返す。再熱器20aの据え付けが完了したら、図示しな
い後隔壁14に接続するスクリーンおよび後隔壁14を
ボイラ1内部に配置し、上記の手順と同様にして中央隔
壁13と後隔壁14の間にコイル25を据え付ける。
When the construction of the boiler building F is completed, the internal devices are installed sequentially from the furnace room 7 side. Next, the reheater 20a, the superheater 20b, and the evaporator 20
c, A procedure for assembling the economizer 20d will be described. (1) The screen 33 is lifted, the sling bolt 3 is connected to the support bracket 35, and the screen 33 is hung on the ceiling beam 2. (2) The front partition 12 having a length in the furnace width direction of 3 to 5 meters is lifted and temporarily fixed to the lower portion of the screen 33. (3) The central partition 13 is temporarily fixed to the lower part of the screen 34 by the same procedure as the above procedures (1) and (2). (4) Screen 33, front partition 12, and screen 3
4 and the pipe of the central partition 13 are joined by welding. (5) The coil 25 is arranged between the front partition 12 and the center partition 13. That is, the band 27 is removed, and the coil 25 is
Each of them is lifted, and as shown in FIG.
The hole 26a is fitted to the projection 28a of the eighth. In addition, the coil 25 is assembled in order from the lower side in one row. (6) The upper and lower coils 25 of one row are welded. (7) The above procedures (5) and (6) are performed for all columns. (8) If the furnace width is long, the above procedures (1) to (7) are repeated. When the installation of the reheater 20a is completed, the screen connected to the rear bulkhead 14 (not shown) and the rear bulkhead 14 are arranged inside the boiler 1, and the coil 25 is placed between the central bulkhead 13 and the rear bulkhead 14 in the same manner as described above. Is installed.

【0007】上記の作業により、コイル25は長手方向
を水平にして前隔壁12、中央隔壁13および後隔壁1
4の伝熱管のピッチに合わせて(すなわち、紙面と垂直
なボイラ炉幅方向に約100mmの間隔で)100〜3
00列配置され、図の上下方向に流れる燃焼ガスの熱を
効率良く回収する。
[0007] By the above-described operation, the coil 25 is made horizontal in the longitudinal direction, and the front partition 12, the center partition 13 and the rear partition 1
4 (that is, at intervals of about 100 mm in the boiler furnace width direction perpendicular to the paper surface)
00 rows are arranged to efficiently collect the heat of the combustion gas flowing in the vertical direction in the figure.

【0008】[0008]

【発明が解決しようとする課題】上記したように、従来
は工場で加工したコイル25を10個程度重ねた小ブロ
ックにして建設現場に発送していたから、輸送が容易で
あった。しかし、建設現場においては上下方向の段数に
炉幅方向の列数を乗じた300〜900個のコイル25
を1個ずつ組み込むため、工事期間が長くなった。ま
た、高所での組立作業が多かった。
As described above, in the prior art, a small block in which about ten coils 25 processed in a factory are piled up and sent to a construction site has been easily transported. However, at the construction site, 300 to 900 coils 25 obtained by multiplying the number of rows in the vertical direction by the number of rows in the vertical direction are used.
In order to incorporate one by one, the construction period became longer. Also, there were many assembling works at high places.

【0009】本発明の目的は、上記従来技術における課
題を解決し、工事期間を短縮化することができ、コイル
据付時の高所作業を低減することができるボイラにおけ
る熱回収装置の組立方法および据え付け方法並びに熱回
収装置の組立て治具を提供するにある。
SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems in the prior art, to shorten the construction period, and to reduce the work at a high place when installing a coil. An object of the present invention is to provide an installation method and a jig for assembling a heat recovery apparatus.

【0010】[0010]

【課題を解決するための手段】上記の目的を達成するた
め、第1の手段は、2枚の伝熱管壁の間に複数のコイル
を配置し、前記伝熱管壁の間を通る燃焼ガスから熱を回
収するようにしたボイラにおける熱回収装置の組立方法
において、前記2枚の伝熱管壁と前記複数のコイルを地
上で一体に組立てることを特徴とする。
In order to achieve the above object, a first means is to arrange a plurality of coils between two heat transfer tube walls, and to perform combustion passing between the heat transfer tube walls. In a method of assembling a heat recovery device in a boiler configured to recover heat from gas, the two heat transfer tube walls and the plurality of coils are integrally assembled on the ground.

【0011】また、第2の手段は、2枚の伝熱管壁の間
に複数のコイルを配置し、前記伝熱管壁の間を通る燃焼
ガスから熱を回収するようにしたボイラにおける熱回収
装置の据え付け方法において、地上で前記2枚の伝熱管
壁と前記複数のコイルを一体に組立て、組立てた状態で
吊り上げてボイラ本体の内部に配置することを特徴とす
る。
The second means comprises a plurality of coils arranged between two heat transfer tube walls, and heat is recovered from a combustion gas passing between the heat transfer tube walls in a boiler. In the installation method of the recovery apparatus, the two heat transfer tube walls and the plurality of coils are integrally assembled on the ground, lifted in the assembled state, and disposed inside the boiler main body.

【0012】また、第3の手段は、熱回収装置の組立て
治具を、ベースと、前記ベースに垂直方向に固定した複
数の柱と、保持手段とを設け、前記柱と保持手段により
ボイラの熱回収装置を構成する2枚の伝熱管壁を、ボイ
ラ内部に配置するときと同一の位置関係で保持するよう
に構成したことを特徴とする。
A third means is to provide a jig for assembling the heat recovery apparatus, comprising a base, a plurality of columns fixed to the base in a vertical direction, and holding means. The heat recovery apparatus is characterized in that two heat transfer tube walls constituting the heat recovery device are held in the same positional relationship as when they are arranged inside the boiler.

【0013】[0013]

【発明の実施の形態】以下、本発明を図示の実施の形態
に基づいて説明する。図1は本発明の実施の形態に係る
熱回収装置の1つである再熱器20aの組立完了後の正
面図、図2は図1の鳥瞰図、図3は支持部を拡大して示
す鳥瞰図である。図1、2で、41は輸送架台であり、
コの字状に形成した脚座42の上面に6本の架台ポスト
43を対向させて固定し、複数の横梁44で接続した構
成になっている。45はサポートビームで、左右の架台
ポスト43に挟まれる側(以下、内側という。)に突出
するようにして左右の架台ポスト43の上方に配置され
ている。46はサポートビーム45の支え金具で、架台
ポスト43に固定されている。47はスペーサで、内側
への突出量がサポートビーム45の突出量とほぼ同じに
なるようにして左右の架台ポスト43の下方に配置され
ている。48はステーで、架台ポスト43の倒れを防止
する。49は補強金具で、各所に配置され、架台ポスト
43あるいは脚座42の倒れを防止している。50は縦
梁で、架台ポスト43を平行に位置決めし、最上段の横
梁44に対して着脱自在である。なお、輸送架台41は
H形鋼やI形鋼等で構成され十分な強度を備えている。
また、前隔壁12および中央隔壁13の外側の面(サポ
ート金具28が固定されている面と反対側の面)には図
3に示す支持金具51が所定の間隔で固定され、側面に
はブレース52を位置決めするフック53が所定の場所
に固定されている。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the illustrated embodiments. FIG. 1 is a front view of a reheater 20a as one of the heat recovery apparatuses according to an embodiment of the present invention after assembly is completed, FIG. 2 is a bird's-eye view of FIG. 1, and FIG. It is. In FIGS. 1 and 2, reference numeral 41 denotes a transportation platform,
Six mounting posts 43 are fixed to the upper surface of the U-shaped leg seat 42 so as to face each other, and are connected by a plurality of cross beams 44. Reference numeral 45 denotes a support beam, which is disposed above the left and right gantry posts 43 so as to protrude toward a side (hereinafter referred to as an inside) sandwiched between the left and right gantry posts 43. Reference numeral 46 denotes a support for the support beam 45, which is fixed to the gantry post 43. Reference numeral 47 denotes a spacer, which is disposed below the left and right gantry posts 43 such that the amount of protrusion toward the inside is substantially equal to the amount of protrusion of the support beam 45. A stay 48 prevents the gantry post 43 from falling down. Reference numeral 49 denotes a reinforcing bracket which is arranged at various places to prevent the gantry post 43 or the leg base 42 from falling down. Reference numeral 50 denotes a vertical beam, which positions the gantry post 43 in parallel, and is detachable from the uppermost horizontal beam 44. The transport gantry 41 is made of H-beam, I-beam, or the like, and has sufficient strength.
Further, support brackets 51 shown in FIG. 3 are fixed at predetermined intervals on outer surfaces of the front partition wall 12 and the center partition wall 13 (surfaces opposite to the surface on which the support brackets 28 are fixed), and braces are provided on the side surfaces. A hook 53 for positioning 52 is fixed at a predetermined position.

【0014】次に、再熱器20aの組み立て手順を説明
する。 (A)炉幅方向の長さが3〜5メートルの前隔壁12を
吊り上げ、支持金具50をサポートビーム45に係合さ
せ、図1の前後および左右方向に位置決めし、前隔壁1
2の重量をサポートビーム45で受けさせる。
Next, the procedure for assembling the reheater 20a will be described. (A) The front partition wall 12 having a length of 3 to 5 meters in the furnace width direction is lifted, the support bracket 50 is engaged with the support beam 45, and is positioned in the front-rear and left-right directions in FIG.
2 is received by the support beam 45.

【0015】(B)前隔壁12が垂直の状態になるよう
にして下端側をスペーサ46に仮止めする。 (C)同様に、中央隔壁13の重量をサポートビーム4
5で受けさせ、垂直の状態になるようにして下端側をス
ペーサ46に仮止めする。 (D)コイル25の据え付けに支障とならない位置の縦
梁50を固定する。 (E)コイル25を1枚ずつ吊り上げ、下段から順にエ
ンドサポート金具27をサポート金具28に係合させ
る。 (F)1列分の上下各段のコイル25を溶接する。 (G)上記(E)、(F)を総ての列について行う。 (H)ブレース52をフック53に掛け回す。なお、図
示の場合は、各段毎にブレース52をたすき掛けに掛け
ている。また、図示を省略しているが、幅方向にも掛け
てある。
(B) The lower end is temporarily fixed to the spacer 46 so that the front partition 12 is in a vertical state. (C) Similarly, the weight of the center partition 13 is
5 and temporarily fixed to the spacer 46 at the lower end so as to be in a vertical state. (D) Fix the vertical beam 50 at a position that does not hinder installation of the coil 25. (E) The coils 25 are lifted one by one, and the end support fittings 27 are engaged with the support fittings 28 in order from the bottom. (F) The upper and lower coils 25 of one row are welded. (G) The above (E) and (F) are performed for all columns. (H) Hang the brace 52 around the hook 53. In the case shown in the figure, the brace 52 is hung for each stage. In addition, although not shown, it is also applied in the width direction.

【0016】再熱器20aを工場で組み立てた場合は、
輸送架台41に組み立てた状態のままトラックあるいは
船舶等の輸送機関によりボイラの組立て現場に輸送す
る。なお、図4に示すように、輸送に支障がない範囲
で、上記(A)〜(G)を繰返すことにより幅方向が長
尺の熱回収装置に組み立ててもよい。
When the reheater 20a is assembled at a factory,
The truck is transported to the boiler assembling site by a transportation means such as a truck or a ship while being assembled on the transport frame 41. In addition, as shown in FIG. 4, as long as there is no obstacle to transportation, the above (A) to (G) may be repeated to assemble a heat recovery device having a long width direction.

【0017】図5は吊り上げ要領の説明図であり、図1
〜3および図12と同じものは同一の符号を付してあ
る。図で、60は吊り下げ天秤で、センターボルト31
に支持され、スクリーン33、34を保持している。6
1は保持治具である。以下、再熱器20aをボイラ本体
1に取り付ける手順を説明する。 (ア)吊り下げ天秤60をスクリーン33、34の下端
が搬入される再熱器20aに干渉しない高さまでジャッ
キアップする。
FIG. 5 is an explanatory view of the lifting procedure.
1 to 3 and FIG. 12 are denoted by the same reference numerals. In the figure, reference numeral 60 denotes a suspended balance, and a center bolt 31 is provided.
And holds the screens 33 and 34. 6
1 is a holding jig. Hereinafter, a procedure for attaching the reheater 20a to the boiler main body 1 will be described. (A) The hanging balance 60 is jacked up to a height at which the lower ends of the screens 33 and 34 do not interfere with the reheater 20a to be carried in.

【0018】(イ)再熱器20aを輸送架台41に保持
させた状態で、スクリーン33、34の下部に搬入し、
位置決めする。 (ウ)スクリーン33と前隔壁12およびスクリーン3
4と中央隔壁13をそれぞれ保持治具61により接続す
る。 (エ)再熱器20aの重量を輸送架台41からセンター
ホールジャッキ30に移す。 (オ)縦梁50を外す。 (カ)再熱器20aを所定高さまでジャッキアップし、
輸送架台41から外す。
(A) With the reheater 20a held on the transport gantry 41, the reheater 20a is transported below the screens 33 and 34,
Position. (C) Screen 33, front partition 12, and screen 3
4 and the central partition 13 are connected by holding jigs 61 respectively. (D) The weight of the reheater 20a is transferred from the transportation platform 41 to the center hole jack 30. (E) Remove the vertical beam 50. (F) Jack up the reheater 20a to a predetermined height,
Remove from the transport platform 41.

【0019】(キ)スクリーン33と前隔壁12および
スクリーン34と中央隔壁13の管部をそれぞれ溶接に
より接続する。 (ク)天秤60をジャッキアップし、スリングボルト3
と支持金具35を接続する。 (ケ)ブレース52を外す。
(G) The screen 33 is connected to the front partition 12 and the screen 34 is connected to the pipe of the central partition 13 by welding. (H) Jack up the balance 60 and use the sling bolt 3
And the support bracket 35 are connected. (K) Remove the brace 52.

【0020】なお、上記では、スクリーン33、34に
再熱器20aを接続してからジャッキアップさせたが、
図6に示すように、予めスクリーン33、34をスリン
グボルト3に接続しておき、例えば支持金具51を可撓
性のあるセンターワイヤ31aに接続して再熱器20a
をジャッキアップするようにしてもよい。
In the above description, the reheater 20a is connected to the screens 33 and 34 and then jacked up.
As shown in FIG. 6, the screens 33 and 34 are connected to the sling bolts 3 in advance, and for example, the support fittings 51 are connected to the flexible center wire 31a and the reheater 20a is connected.
May be jacked up.

【0021】上記実施の形態では、ブレース52を設け
たから、輸送時、および吊り上げ時にコイル25のずれ
を防止することができる。
In the above embodiment, since the brace 52 is provided, it is possible to prevent the coil 25 from shifting during transportation and lifting.

【0022】図7は本発明に係る2つの伝熱管壁の間隔
が広い熱回収装置の組立図であり、図1と同じものまた
は同一機能のものは同一符号を付して説明を省略する。
71はパネル状の前隔壁、72はパネル状の後隔壁で、
出口管寄せ11を受け台73を介して輸送架台41上に
直接載置され、図示しない保持具により架台ポスト43
および横梁44により支持されている。74はスリング
管で、列方向のコイル25間に例えば1つおきに配置さ
れ、図示しない受け具により両側のコイル25を支持す
る。このようにすると、水平方向の長さが長いコイル2
5の中央部の変形を防止することができる。図示の熱回
収装置では、2段の過熱器20aと1段の節炭器20d
を上下に配列しているが、上記再熱器20aの組立て手
順の(F)と(G)の間にスリング管74の配置が加わ
るだけであり、他は同一であるから、説明を省略する。
また、図示の熱回収装置をボイラ本体1に取り付ける手
順は、上記再熱器20aをボイラ本体1に取り付ける手
順(ク)と(ケ)の間に吊り下げ管15とスリング管7
4の溶接が加わるだけであり、他は同一であるから、説
明を省略する。また、輸送時にはスリング管74にはコ
イル25の重量を負担させないように組立てると(例え
ば、スリング管74に当接する受け台73を低くす
る。)、コイル25の外れを予防できる。
FIG. 7 is an assembly view of a heat recovery apparatus according to the present invention, in which the distance between two heat transfer tube walls is wide, and those having the same functions or functions as those in FIG. .
71 is a panel-shaped front partition, 72 is a panel-shaped rear partition,
The outlet header 11 is directly placed on the transporting gantry 41 via the receiving gantry 73, and the gantry post 43 is held by a holder (not shown).
And are supported by the cross beams 44. Numeral 74 denotes a sling tube, which is arranged, for example, every other coil 25 in the row direction, and supports the coils 25 on both sides by receiving members (not shown). In this manner, the coil 2 having a long horizontal length
5 can be prevented from being deformed. In the illustrated heat recovery device, a two-stage superheater 20a and a one-stage economizer 20d
Are arranged up and down, but only the arrangement of the sling tube 74 is added between (F) and (G) in the procedure for assembling the reheater 20a. .
The procedure for attaching the illustrated heat recovery device to the boiler main body 1 is based on the procedure of attaching the reheater 20a to the boiler main body 1 between (h) and (h).
Only the welding of No. 4 is added, and the other parts are the same. Further, if the sling tube 74 is assembled so as not to bear the weight of the coil 25 at the time of transportation (for example, the receiving base 73 abutting on the sling tube 74 is lowered), the coil 25 can be prevented from coming off.

【0023】なお、スリング管74は1か所に限らず、
水平方向の長さが長い場合には、2か所以上に配置され
ることもある。また、上記手順(ケ)において、ブレー
ス52を外すようにしたが、特に支障がない場合は、外
さなくても良い。
The sling tube 74 is not limited to one place.
When the length in the horizontal direction is long, it may be arranged at two or more places. Further, in the above procedure (G), the brace 52 is removed, but if there is no particular problem, the brace 52 need not be removed.

【0024】また、熱回収装置である再熱器20aを天
井大梁11に吊り下げた後、別に組み立てた熱回収装置
である過熱器20aおよび1段の節炭器20dを天井大
梁2に吊り下げるようにすると、中央隔壁13は2重に
なるが、大幅な工数低減ができる。また、中央隔壁13
を幅方向の両端だけで固定するようにして、前隔壁1
2、中央隔壁13および後隔壁14を地上でまとめて組
み立てるようにしてもよい。
After the reheater 20a as a heat recovery device is suspended from the ceiling girder 11, the superheater 20a and the one-stage economizer 20d as a separately assembled heat recovery device are suspended from the ceiling girder 2. By doing so, the central partition 13 is doubled, but the number of steps can be significantly reduced. Also, the central partition 13
Is fixed only at both ends in the width direction, and the front partition 1
2. The central bulkhead 13 and the rear bulkhead 14 may be assembled together on the ground.

【0025】[0025]

【発明の効果】以上説明したように、本発明によれば、
ベースと、前記ベースに垂直方向に固定した複数の柱
と、保持手段とを設け、前記柱と保持手段によりボイラ
の熱回収装置を構成する2枚の伝熱管壁を、ボイラ内部
に配置するときと同一の位置関係で保持するように構成
した組立て治具により、地上で熱回収装置を一体に組立
て、組立てた状態で吊り上げてボイラ本体の内部に配置
するようにしたから、ボイラの組立て工数を大幅に低減
することができる。また、高所作業、吊り上げ回数の低
減により、従来に比べ作業の安全性を増すことができ
る。
As described above, according to the present invention,
A base, a plurality of columns fixed to the base in a vertical direction, and a holding unit are provided, and two heat transfer tube walls forming a heat recovery device of the boiler are arranged inside the boiler by the columns and the holding unit. With the assembly jig configured to hold the same positional relationship as before, the heat recovery device was assembled integrally on the ground, lifted in the assembled state, and placed inside the boiler main body. Can be greatly reduced. In addition, the safety at work can be increased as compared with the related art by reducing work at a high place and the number of times of lifting.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の実施の形態に係る再熱器の組立完了後
の正面図である。
FIG. 1 is a front view of a reheater according to an embodiment of the present invention after assembly is completed.

【図2】図1の鳥瞰図である。FIG. 2 is a bird's-eye view of FIG. 1;

【図3】図1の支持部を拡大して示す鳥瞰図である。FIG. 3 is a bird's-eye view showing the support section of FIG. 1 in an enlarged manner.

【図4】本発明に係る長尺の熱回収装置の組立時の鳥瞰
図である。
FIG. 4 is a bird's-eye view at the time of assembling the long heat recovery device according to the present invention.

【図5】本発明に係る吊り上げ要領の説明図である。FIG. 5 is an explanatory view of a lifting procedure according to the present invention.

【図6】本発明に係る他の吊り上げ要領の説明図であ
る。
FIG. 6 is an explanatory view of another lifting procedure according to the present invention.

【図7】本発明に係る2つの伝熱管壁の間隔が広い熱回
収装置の組立図である。
FIG. 7 is an assembly view of a heat recovery apparatus according to the present invention, in which a distance between two heat transfer tube walls is large.

【図8】事業用火力発電用の大型ボイラの断面図であ
る。
FIG. 8 is a sectional view of a large-scale boiler for commercial thermal power generation.

【図9】従来のコイルの荷姿の鳥瞰図である。FIG. 9 is a bird's-eye view of a conventional coil package.

【図10】建設途中のボイラの断面図である。FIG. 10 is a sectional view of a boiler under construction.

【図11】従来の据え付け手順を説明する図である。FIG. 11 is a diagram illustrating a conventional installation procedure.

【図12】コイルを固定する部分の組立図である。FIG. 12 is an assembly view of a part for fixing a coil.

【符号の説明】[Explanation of symbols]

12 前隔壁 13 中央隔壁 25 コイル 41 輸送架台 42 脚座 43 架台ポスト 44 横梁 45 サポートビーム 47 スペーサ 12 Front bulkhead 13 Central bulkhead 25 Coil 41 Transport rack 42 Leg base 43 Mount post 44 Cross beam 45 Support beam 47 Spacer

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 2枚の伝熱管壁の間に複数のコイルを配
置し、前記伝熱管壁の間を通る燃焼ガスから熱を回収す
るようにしたボイラにおける熱回収装置の組立方法にお
いて、前記2枚の伝熱管壁と前記複数のコイルを地上で
一体に組立てることを特徴とするボイラにおける熱回収
装置の組立方法。
1. A method for assembling a heat recovery device in a boiler in which a plurality of coils are arranged between two heat transfer tube walls to recover heat from a combustion gas passing between the heat transfer tube walls. And assembling the two heat transfer tube walls and the plurality of coils integrally on the ground.
【請求項2】 2枚の伝熱管壁の間に複数のコイルを配
置し、前記伝熱管壁の間を通る燃焼ガスから熱を回収す
るようにしたボイラにおける熱回収装置の据え付け方法
において、地上で前記2枚の伝熱管壁と前記複数のコイ
ルを一体に組立て、組立てた状態で吊り上げてボイラ本
体の内部に配置することを特徴とするボイラにおける熱
回収装置の据え付け方法。
2. A method for installing a heat recovery device in a boiler in which a plurality of coils are arranged between two heat transfer tube walls and heat is recovered from a combustion gas passing between the heat transfer tube walls. A method of installing a heat recovery device in a boiler, comprising: assembling the two heat transfer tube walls and the plurality of coils integrally on the ground; lifting the assembled heat transfer tube wall;
【請求項3】 ベースと、前記ベースに垂直方向に固定
した複数の柱と、保持手段とを設け、前記柱と保持手段
によりボイラの熱回収装置を構成する2枚の伝熱管壁
を、ボイラ内部に配置するときと同一の位置関係で保持
するように構成したことを特徴とするボイラにおける熱
回収装置の組立て治具。
3. A base, a plurality of pillars fixed to the base in a vertical direction, and a holding means, wherein the pillars and the holding means form two heat transfer tube walls constituting a heat recovery device of a boiler. A jig for assembling a heat recovery device in a boiler, wherein the jig is configured to be held in the same positional relationship as when it is arranged inside a boiler.
JP8123198A 1998-03-27 1998-03-27 Method for assembling and installing heat recovery apparatus in boiler and jig for assembling heat recovery apparatus Pending JPH11281002A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8123198A JPH11281002A (en) 1998-03-27 1998-03-27 Method for assembling and installing heat recovery apparatus in boiler and jig for assembling heat recovery apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8123198A JPH11281002A (en) 1998-03-27 1998-03-27 Method for assembling and installing heat recovery apparatus in boiler and jig for assembling heat recovery apparatus

Publications (1)

Publication Number Publication Date
JPH11281002A true JPH11281002A (en) 1999-10-15

Family

ID=13740690

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8123198A Pending JPH11281002A (en) 1998-03-27 1998-03-27 Method for assembling and installing heat recovery apparatus in boiler and jig for assembling heat recovery apparatus

Country Status (1)

Country Link
JP (1) JPH11281002A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007107787A (en) * 2005-10-12 2007-04-26 Babcock Hitachi Kk Installation method of boiler facility
JP2013100967A (en) * 2011-11-09 2013-05-23 Ihi Corp Method of constructing tower boiler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007107787A (en) * 2005-10-12 2007-04-26 Babcock Hitachi Kk Installation method of boiler facility
JP2013100967A (en) * 2011-11-09 2013-05-23 Ihi Corp Method of constructing tower boiler

Similar Documents

Publication Publication Date Title
JP4154534B2 (en) Construction method for inspection of large boiler parts
EP1662198B1 (en) Heat transfer tube panel module and method of constructing exhaust heat recovery boiler using the module
ES2234719T3 (en) STEAM GENERATOR AND ASSEMBLY PROCEDURE FOR THE SAME.
US7296349B2 (en) Method to assemble a steam generator
US3608525A (en) Vapor generator and structural unit therefor
JPH11281002A (en) Method for assembling and installing heat recovery apparatus in boiler and jig for assembling heat recovery apparatus
US6092591A (en) Top mounting arrangement for a heat exchange module
JP4234517B2 (en) Waste heat recovery boiler and its installation method
JP2003222302A (en) Constructing method of exhaust heat recovery boiler and heat transfer tube panel block used in method
JPH0426438B2 (en)
JP2007107787A (en) Installation method of boiler facility
JP3801267B2 (en) Installation method and structure of horizontal heat transfer tube group
JP2582522B2 (en) Assembling and installation method of boiler pressure section and supporting steel frame
JPH11211003A (en) Boiler and assembling method thereof
JP2006162137A (en) Installation method and installation structure of suspension type boiler
JP3845492B2 (en) Inspection method of furnace wall in boiler furnace hopper and construction method of work floor
JP3100574B2 (en) Suspended scaffold and its erection method
CN214402637U (en) Steel construction platform
JP2927423B2 (en) Rear transmission block construction method for a suspended boiler
JP2023175115A (en) Wall reinforcement arrangement method
JPH03253602A (en) Erection of suspended type bridge for pipe
JP2022097124A (en) Transportation frame structure and transportation method
JPH0660723B2 (en) Method of assembling inclined water cooling wall
JP2000028105A (en) Integrated assembling method of suspension superheater
JP3849139B2 (en) Temporary scaffolding for vertical piping

Legal Events

Date Code Title Description
A977 Report on retrieval

Effective date: 20060227

Free format text: JAPANESE INTERMEDIATE CODE: A971007

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20060328

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20060725