JPH03241203A - Method of constructing boiler - Google Patents
Method of constructing boilerInfo
- Publication number
- JPH03241203A JPH03241203A JP12101690A JP12101690A JPH03241203A JP H03241203 A JPH03241203 A JP H03241203A JP 12101690 A JP12101690 A JP 12101690A JP 12101690 A JP12101690 A JP 12101690A JP H03241203 A JPH03241203 A JP H03241203A
- Authority
- JP
- Japan
- Prior art keywords
- steel frame
- stage
- construction
- ceiling
- boiler
- 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
- 238000000034 method Methods 0.000 title abstract description 11
- 238000010276 construction Methods 0.000 claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims description 109
- 239000010959 steel Substances 0.000 claims description 109
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 16
- 229910052742 iron Inorganic materials 0.000 abstract 8
- 230000007246 mechanism Effects 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
Description
【発明の詳細な説明】 [産業上の利用分野1 本発明は、ボイラの建設方法に関するものである。[Detailed description of the invention] [Industrial application field 1 The present invention relates to a boiler construction method.
[従来の技術]
従来のボイラの建設方法を第15図・第16図を用いて
説明する。[Prior Art] A conventional boiler construction method will be explained with reference to FIGS. 15 and 16.
図中1は第1段目の鉄骨枠、2は第2段目の鉄骨枠、3
は第3段目の鉄骨枠、4は第3段目の鉄骨枠3の頂部に
固定された天井大梁、5は天井大梁4に吊すロソト6を
介して吊り下げ支持されたボイラ本体、7はボイラ本体
上部、8はボイラ本体下部である。In the figure, 1 is the steel frame of the first stage, 2 is the steel frame of the second stage, 3
is the steel frame of the third stage, 4 is the ceiling beam fixed to the top of the third stage steel frame 3, 5 is the boiler body suspended and supported via a rope 6 suspended from the ceiling beam 4, and 7 is the boiler body suspended from the ceiling beam 4. The upper part of the boiler body, 8 is the lower part of the boiler body.
従来のボイラの建設方法においては、先ず、第15図に
示すように地上に第1段目の鉄骨枠lを構築し、第1段
目の鉄骨枠(の上部に第2段目の鉄骨枠2を構築し、第
2段目の鉄骨枠2の上部に第3段目の鉄骨枠3を構築す
る。In the conventional boiler construction method, first, as shown in Figure 15, a first stage steel frame is constructed on the ground, and a second stage steel frame is placed on top of the first stage steel frame. 2, and a third stage steel frame 3 is constructed on top of the second stage steel frame 2.
尚、ボイラか大型になれば、第3段目の鉄骨枠3の上部
に更に第4段目、第5段目・・・の鉄骨枠か絹み上げら
れて行く。If the boiler becomes larger, steel frames for the fourth, fifth, and so on stages will be built on top of the third stage steel frame 3.
第3段目の鉄骨枠3か構築されたら、第16図こ示すよ
うに第3段目の鉄骨枠3の頂部に天井大梁4を構築し、
更に、天井大梁4から吊すロノト6を介してボイラ本体
上部7の各構成部品を吊り下げ支持してボイラ本体上部
7を構築し、最後にボイラ本体上部7に対してボイラ本
体下部8の各構成部品を組立てて行きボイラ本体5を建
設する。Once the third stage steel frame 3 is constructed, a ceiling girder 4 is constructed on top of the third stage steel frame 3, as shown in Figure 16.
Furthermore, the upper part of the boiler main body 7 is constructed by suspending and supporting each component of the upper part of the boiler main body 7 via the roof beam 6 suspended from the ceiling girder 4, and finally, each component of the lower part of the boiler main body 8 is connected to the upper part of the boiler main body 7. The boiler body 5 is constructed by assembling the parts.
[発明か解決しようとする課題]
しかしなから」二記従来のボイラの建設方法には以下の
ような問題点かあった。[Problem to be solved by the invention] However, the conventional boiler construction method has the following problems.
■ 1つ1つの作業か順を追って直列的に進められて行
くため、工期か長く掛かる。■ The work takes a long time because each piece of work is done in series.
■ 天井大梁4の構築以後の作業か全て高所作業となる
ため、作業に危険を伴なう。■ All work after the construction of ceiling girder 4 will be done at height, which will be dangerous.
■ 高所作業か多いため作業性か悪く、■に加えて更に
工期の長期化を招いてしまう。■ Workability is poor due to a lot of work being done at heights, and in addition to ■, the construction period becomes even longer.
本発明は上述の実情に鑑み、工期の短縮及び高所作業の
低減を図り得るようにしたボイラの建設方法を提供する
ことを目的とするものである。In view of the above-mentioned circumstances, it is an object of the present invention to provide a boiler construction method that can shorten the construction period and reduce work at high places.
[課題を解決するための手段]
本発明は、上下に3段以上に組み上げられた鉄骨枠によ
り天井大梁を支え、該天井大梁にボイラ本体を吊り下げ
支持するボイラの建設方法において、第1段目の鉄骨枠
の構築終了後第1段目の鉄骨枠の上部に第2段目の鉄骨
枠の構築を開始すると共に、第1段目の鉄骨枠の構築開
始から第2段目の鉄骨枠の構築終了までの間に第1段目
の鉄骨枠に天井大梁及び吊りロットや管類を構築し、第
2段目の鉄骨枠の構築柊了後第2段目の鉄骨枠の上部に
第3段目以降の鉄骨枠の構築を開始すると共に、第3段
目以降の鉄骨枠の構築中に天井大梁を第2段目の鉄骨枠
の高さまで持ち上げて天井大梁下部の吊り具及び管類に
対しボイラ本体上部を組立て、第3段目辺降の鉄骨枠の
構築終了後ボイラ本体上部ごと天井大梁を第3段目以降
の鉄骨枠の上部まで持ち上げて前記ボイラ本体上部に対
しボイラ本体下部を組立てることを特徴とするボイラの
建設方法にかかるものである。[Means for Solving the Problems] The present invention provides a boiler construction method in which a ceiling beam is supported by a steel frame assembled in three or more stages vertically, and a boiler main body is suspended and supported from the ceiling beam. After the construction of the second steel frame is completed, the construction of the second stage steel frame is started on top of the first stage steel frame, and from the start of construction of the first stage steel frame, the construction of the second stage steel frame is started. Until the construction of the first stage steel frame is completed, the ceiling beams, hanging rods, and pipes will be constructed on the first stage steel frame, and after the construction of the second stage steel frame is completed, a second stage will be installed on the top of the second stage steel frame. At the same time as starting the construction of the steel frames for the third and subsequent stages, the ceiling girder was lifted to the height of the second stage steel frame, and the suspension equipment and pipes at the bottom of the ceiling girder were removed. After assembling the upper part of the boiler main body, and after completing the construction of the steel frame for the third stage, lift the ceiling girder together with the upper part of the boiler body to the top of the steel frame of the third and subsequent stages, and attach the lower part of the boiler main body to the upper part of the boiler main body. The present invention relates to a boiler construction method characterized by assembling a boiler.
[作 用〕
第1段目の鉄骨枠の構築開始から第2段目の鉄骨枠の構
築終了までの間に、並行して第1段目の鉄骨枠に対して
天井大梁及び吊りロッドや管類を横築し、且つ第3段目
の鉄骨枠の構築と並行して第2段目の鉄骨枠の上部へ持
ち上げた天井大梁の下部に吊りロットや管類を利用して
ボイラ本体上部を構築するようにしたので、工期か短縮
される。[Function] During the period from the start of construction of the first stage steel frame to the completion of construction of the second stage steel frame, ceiling girders, suspension rods and pipes are installed against the first stage steel frame in parallel. In parallel with the construction of the third stage steel frame, the upper part of the boiler body was installed using hanging rods and pipes at the bottom of the ceiling girder which was lifted to the top of the second stage steel frame. Since we decided to construct it, the construction period will be shortened.
又、天井大梁の構築及びボイラ本体上部の構築か低い位
置で行われるため、高所作業か減少され、従って作業の
危険性か減少される。In addition, since the construction of the ceiling girder and the construction of the upper part of the boiler body are performed at a low location, the need for work at heights is reduced, and therefore the risk of work is reduced.
更に、低所作業か増えるため作業性か向上し、上記に加
えて一層工期が短縮される。Furthermore, work efficiency is improved because there is more work to be done in low places, and in addition to the above, the construction period is further shortened.
[実 施 例〕 以下、本発明の実施例を図面を参照しつつ説明する。[Example〕 Embodiments of the present invention will be described below with reference to the drawings.
第1図〜第4図は本発明の一実施例である。1 to 4 show an embodiment of the present invention.
図中1は第1段目の鉄骨枠、2は第2段目の鉄骨枠、3
は第3段目の鉄骨枠、4は第3段目の鉄骨枠3の頂部に
固定された天井大梁、5は天井大梁4に吊りロット6を
介して吊り下げ支持されたボイラ本体、7はボイラ本体
上部、8はボイラ本体下部である。In the figure, 1 is the steel frame of the first stage, 2 is the steel frame of the second stage, 3
is the steel frame of the third stage, 4 is the ceiling beam fixed to the top of the third stage steel frame 3, 5 is the boiler body suspended and supported from the ceiling beam 4 via the hanging rod 6, and 7 is the The upper part of the boiler body, 8 is the lower part of the boiler body.
先ず、第1図に示すように地上に第1段目の鉄骨枠1を
構築し、第1段目の鉄骨枠iの構築と並行して地上に天
井大梁4を構築する。First, as shown in FIG. 1, a first stage steel frame 1 is constructed on the ground, and a ceiling girder 4 is constructed on the ground in parallel with the construction of the first stage steel frame i.
第1段目の鉄骨枠りを構築したら、第2図に示すように
、第1段目の鉄骨枠1の上部に第2段目の鉄骨枠2を構
築すると共に、第2段目の鉄骨枠2の構築と並行して第
1段目の鉄骨枠1の頂部まて天井大梁4を持ち上げて、
天井大梁4の下部に吊りロット6及び図示しない管類等
この段階で取付けか可能な構成部品を吊り下げ支持する
。After constructing the first stage steel frame, as shown in Fig. 2, the second stage steel frame 2 is constructed on top of the first stage steel frame 1, and the second stage steel frame 2 is constructed. In parallel with the construction of the frame 2, lift the ceiling girder 4 to the top of the first stage steel frame 1,
Components that can be attached at this stage, such as a hanging rod 6 and pipes (not shown), are suspended and supported from the lower part of the ceiling girder 4.
第2段目の鉄骨枠2と天井大梁4及び吊りロット6や管
類とを構築したら、第3図に示すように、第2段目の鉄
骨枠2の上部に@3段目の鉄骨枠3を構築すると共に、
第3段目の鉄骨枠3の構築と並行して天井大梁4及び吊
すロッド6や管類を第1段目の鉄骨枠1から第2段目の
鉄骨枠2の頂部まで持ち上げ、しかる後に、天井大梁4
の下部に、吊りロッド6を利用して、特に図示しないか
、管寄せ、過熱器管、再熱器管、上部炉壁、ハンギング
ストラクチャー、天井管、連絡管、天井囲い、その他を
吊り下げて行きボイラ本体上部7を構築する。After constructing the second stage steel frame 2, ceiling girders 4, hanging rods 6, and pipes, as shown in Fig. 3, the @ third stage steel frame is placed on top of the second stage steel frame 2. Along with building 3,
In parallel with the construction of the third stage steel frame 3, the ceiling beams 4, hanging rods 6, and pipes are lifted from the first stage steel frame 1 to the top of the second stage steel frame 2, and then, Ceiling girder 4
Using the hanging rod 6, the header, superheater pipe, reheater pipe, upper furnace wall, hanging structure, ceiling pipe, connecting pipe, ceiling enclosure, etc. (not shown in the figure) can be hung from the bottom of the Build the upper part 7 of the main body of the going boiler.
第3段目の鉄骨枠3とボイラ本体上部7を構築したら、
第4図に示すように、ボイラ本体上部7ごと天井大梁4
を第2段目の鉄骨枠2から第3段目の鉄骨枠3の頂部ま
で持ち上げて第3段目の鉄骨枠3の頂部に固定し、ボイ
ラ本体上部7に対してボイラ火炉や後部伝熱部のような
ボイラ本体下部8を組立てて行きボイラ本体5を建設す
る。After constructing the third stage steel frame 3 and the upper part of the boiler body 7,
As shown in Figure 4, the ceiling girder 4 together with the upper part 7 of the boiler body
is lifted from the second stage steel frame 2 to the top of the third stage steel frame 3 and fixed to the top of the third stage steel frame 3, and the boiler furnace and rear heat transfer are connected to the upper part 7 of the boiler main body. The boiler main body 5 is constructed by assembling the lower part 8 of the boiler main body.
このように、第1段目の鉄骨枠lの構築開始から第2段
目の鉄骨枠2の構築終了までの間に、並行して第1段目
の鉄骨枠lに対して天井大梁4及び吊すロット6や管類
を構築し、且つ、第3段目の鉄骨枠3の構築と並行して
第2段目の鉄骨枠2の頂部へ持ち上げた天井大梁4の下
部に吊りロッド6や管類を利用してボイラ本体上部7を
構築するようにしたので、工期の短縮を図ることができ
る。In this way, between the start of construction of the first stage steel frame l and the end of construction of the second stage steel frame 2, the ceiling beams 4 and The hanging rods 6 and pipes are constructed at the bottom of the ceiling girder 4 which has been lifted to the top of the second stage steel frame 2 in parallel with the construction of the third stage steel frame 3. Since the boiler main body upper part 7 is constructed using similar materials, the construction period can be shortened.
又、天井大梁4の構築及びボイラ本体上部7の構築か低
所作業となるため、全体として高所作業が減少され、従
って作業の危険性を減少することかできる。Furthermore, since the construction of the ceiling girder 4 and the construction of the boiler main body upper part 7 are performed at low places, the work at high places is reduced as a whole, and therefore the danger of the work can be reduced.
更に、低所作業が増えるため作業性が向上し、上記に加
えて一層工期の短縮を図ることができる。Furthermore, work efficiency is improved because there is more work to be done in low places, and in addition to the above, it is possible to further shorten the construction period.
次に第5図〜第10図を用いて、天井大梁4を第1段目
〜第3段目の鉄骨枠l〜3に対して持ち上げる古注につ
いて具体的に説明する。Next, using FIGS. 5 to 10, a concrete explanation will be given of an old note that lifts the ceiling girder 4 relative to the steel frames 1 to 3 of the first to third stages.
図中9は第1段目〜第3段目の鉄骨枠l〜3において天
井大梁4の昇降を案内する案内架橋lOを支持する本設
柱や仮設柱のような柱であって、前記案内架構10は第
8図に示すように水平断面コの字型をして上下に延び、
且っ柱9の鉄骨枠l内側の面に複数のクランプ11で着
脱自在に固定されている。In the figure, reference numeral 9 denotes a pillar such as a permanent pillar or a temporary pillar that supports the guide bridge IO that guides the elevation of the ceiling girder 4 in the steel frames 1 to 3 of the first to third stages. As shown in FIG. 8, the frame 10 has a U-shaped horizontal section and extends vertically.
It is detachably fixed to the inner surface of the steel frame l of the pillar 9 with a plurality of clamps 11.
12は水平断面かコの字型をした案内架構10の対向す
る面に夫々上下方向に一定の間隔を置いて形成された複
数対のピン孔である。Reference numeral 12 denotes a plurality of pairs of pin holes formed on opposing surfaces of the guide frame 10 having a U-shaped horizontal cross section at regular intervals in the vertical direction.
13は前記案内架構1oのコの字型の溝内部に収納され
且つ第6図・第7図に示すような支持板25を介して天
井大梁4の下端を支持するジヤツキアップ装置であって
、ジヤツキシリンダ14と、該ジヤツキシリンダ14の
上下端に夫々ピン15を用いて連結されたクランプ機構
IS、Isとて構成されている。Reference numeral 13 denotes a jacking device which is housed inside the U-shaped groove of the guide frame 1o and supports the lower end of the ceiling beam 4 via a support plate 25 as shown in FIGS. 6 and 7. It consists of a jack cylinder 14 and clamp mechanisms IS, Is connected to the upper and lower ends of the jack cylinder 14 using pins 15, respectively.
クランプ機構16は以下のように構成されている。The clamp mechanism 16 is configured as follows.
17は第8図に示すように上方から見てヨの字型をして
両側腕部と中央の腕部との間により案内架構10に嵌め
合せ可能な架台、1Bは架台17のヨの字型の両側腕部
に夫々ピン挿脱シリンダ19を介して前記各ピン孔12
に対し夫々挿脱可能に設けた一対のピン、20は架台1
7のヨの字型の両側腕部及び中央の腕部に取付けた前記
ピン18を案内及び支持するボス、21は架台i7のヨ
の字型の中央の腕部に設けた前記案内架橋lOの内面に
沿って転動するガイドローラであり、前記支持板25は
ジヤツキアップ装置13上端側のクランプ機構16にお
ける架台17の中央の腕部に設けたボス20に取付けら
れている。Reference numeral 17 denotes a pedestal having a Y-shape when viewed from above as shown in FIG. 8, and can be fitted into the guide frame 10 between both side arms and the central arm. The respective pin holes 12 are inserted into both side arms of the mold through pin insertion/removal cylinders 19, respectively.
A pair of pins 20 are provided to be able to be inserted and removed from each other, respectively.
A boss 21 is a boss for guiding and supporting the pin 18 attached to both side arms and a central arm of the Y-shape of the frame i7, and a boss 21 is a boss of the guide bridge lO provided to the central arm of the Y-shape of the frame i7. The support plate 25 is a guide roller that rolls along the inner surface, and the support plate 25 is attached to a boss 20 provided on the central arm of the pedestal 17 in the clamp mechanism 16 on the upper end side of the jack-up device 13.
尚、第10図中22は第3段目の鉄骨枠3と天井大梁4
の間隙に設けられた継ぎ足し部材、23は継ぎ足し部材
22と天井大梁4をボルト24で固定する目板である。In addition, 22 in Fig. 10 indicates the third stage steel frame 3 and ceiling girder 4.
A supplementary member 23 provided in the gap is a batten for fixing the supplementary member 22 and the ceiling girder 4 with bolts 24.
先ず、前記したように、第1段目の鉄骨枠lの構築時に
、第1段目の鉄骨枠lの構築と並行して以下のように地
上で且つ第1段目の鉄骨枠lの内部て天井大梁4を構築
する。First, as mentioned above, when constructing the first stage steel frame l, in parallel with the construction of the first stage steel frame l, the following steps were taken on the ground and inside the first stage steel frame l. Build the ceiling girder 4.
第1段目の鉄骨枠lか構築されたら、第1段目の鉄骨枠
1を構成する本設柱や仮設性のうち第5図に示すように
鉄骨枠↓内側に位置する柱9の、鉄骨枠1内側の面に、
上下方向に延びる水平断面コの字型の案内架構10を第
8図に示すように次数のクランプ11を用いて着脱自在
に固定し、天井大梁4を図示し!−いクレーンで僅かに
吊りLげた状態として、コの字型の案内架構10の下端
にヨの字型をした架台17を嵌め合せて/ヤノキアノプ
装置13をセットすると共に、/ヤソキンリンタ14上
下端に取付けられたクランプ機構16のピン18を夫々
案内架橋10の下から2番目及び最下端のビン孔12に
位置合せしてピン挿脱ンリンタ19を伸長することによ
り、ピン18をビン孔12に挿通させて、ツヤツキアッ
プ装置13を第6図に示すように案内架構10に保持さ
せる。After the first stage steel frame 1 is constructed, among the permanent columns and temporary columns that make up the first stage steel frame 1, as shown in Fig. 5, the pillars 9 located inside the steel frame ↓, On the inside surface of steel frame 1,
As shown in FIG. 8, the guide frame 10, which has a U-shaped horizontal section and extends in the vertical direction, is removably fixed using clamps 11 of different orders, and the ceiling girder 4 is shown in the figure! - While slightly suspended by a crane, the U-shaped guide frame 10 is fitted with the U-shaped guide frame 17, and the Yanokianop device 13 is set. The pins 18 of the attached clamp mechanism 16 are aligned with the second and lowest bottle holes 12 from the bottom of the guide bridge 10, respectively, and the pin inserters 19 are extended to insert the pins 18 into the bottle holes 12. Then, the shine-up device 13 is held on the guide frame 10 as shown in FIG.
そして、案内架橋10に保持されたジヤツキアップ装置
13の上部に支持板25を介して天井大梁4を乗せる。Then, the ceiling beam 4 is placed on top of the jack-up device 13 held on the guide bridge 10 via the support plate 25.
こうして、案内架橋10に7ヤノキアノプ装置13を介
して支持された天月大粱4は、第7図(−示すように7
ヤノキアノプ装置13上端側でピン挿脱ンリンタ19の
ロットを収縮させてピン18を案内架構lOのビン孔1
2から引き抜くことにより上端側のクランプ機構16に
よる案内架橋10に対するクランプ状態か解除され、次
に第9図に示すように7ヤツキシリンタ14のロノFか
伸長されると、ビン孔12の1ピッチ分たけ押し上げら
れる。In this way, the Tengetsu Dairyo 4 supported on the guide bridge 10 via the seven Yanokianop device 13 is shown in FIG.
Shrink the lot of the pin insertion/removal printer 19 on the upper end side of the Yanokianop device 13 and insert the pin 18 into the bottle hole 1 of the guide frame IO.
2, the clamping state of the guide bridge 10 by the clamp mechanism 16 on the upper end side is released, and then as shown in FIG. Being pushed up high.
天井大梁4を1ピッチ分押し上げたら、ジヤツキアップ
装置13上端側のクランプ機構(6のピン挿脱ンリンタ
19のロットを伸長させてピン18を案内架構10のビ
ン孔12に挿入することにより、天井大梁4を押し上げ
た位置に保持させ、更に前記と同様にして、ンヤノキ下
端側のクランプ機構16の案内架構10に対するクラン
プ状態を解除し、ジャノキンリンタ14のロフトを収縮
して下端側のクランプ機構16を持ち上げ、下端側のク
ランプ機構16を前記と同様にして案内架構10にクラ
ンプさせておく。When the ceiling beam 4 is pushed up by one pitch, the clamp mechanism (6) on the upper end side of the jack-up device 13 is extended, and the pin 18 is inserted into the pin hole 12 of the guide frame 10. 4 in the pushed up position, and in the same manner as described above, release the clamping state of the clamp mechanism 16 on the lower end side of the Janokin tree to the guide frame 10, contract the loft of the Janokin linter 14, and lift the clamp mechanism 16 on the lower end side. , the clamp mechanism 16 on the lower end side is clamped to the guide frame 10 in the same manner as described above.
以後上記操作を繰り返し行うことにより、天井大梁4は
前記ビン孔12の1ピンチ分ずつ上昇して行き、天井大
梁4を第1段目の鉄骨枠1から最總的に第3段目の鉄骨
枠3まて押し上げることか可能となる。Thereafter, by repeating the above operation, the ceiling beam 4 is raised by one pinch of the bottle hole 12, and the ceiling beam 4 is moved from the first stage steel frame 1 to the third stage steel frame. It becomes possible to push up frame 3.
天井大梁4を第3段目の鉄骨枠3の頂部まで押し上げた
後は、第(0図に示すように柱9の上端に取付けた継き
足し部材22に天井大梁4を目板23及びボルト24を
用いて固定し、且つ、天井大梁4からジヤツキアップ装
置13を、及び柱9から案内架構;0を夫々取外す。After pushing up the ceiling beam 4 to the top of the third stage steel frame 3, attach the ceiling beam 4 to the additional member 22 attached to the upper end of the column 9 (as shown in Fig. 24, and remove the jacking device 13 from the ceiling beam 4 and the guide frame 0 from the pillar 9, respectively.
取外されたジヤツキアップ装置13及び案内架構lOは
、別のボイラの建設の際に繰り返し使用することか可能
である。The removed jack-up device 13 and guide frame 1O can be used repeatedly when constructing another boiler.
又、天井大梁4はツヤツキアンプ装置13により鉄骨枠
l〜3に対し昇降可能に保持されているので、天井大梁
4の下部にボイラ本体上部7を組立てて行く時に、従来
は第3段目の鉄骨枠3に固定させた天井大梁4に対して
、ボイラ本体5の各構成部品の側を図示しないクレーン
て昇降させて位置決め及び取付けを行わなけれはならな
いのに対し、本発明の方法によれば、第1段目や第2段
目の鉄骨枠1.2の頂部に昇降自在に保持された天井大
梁4に対して、天井大梁4の側からもボイラ本体上部7
の各構成部品の側からも位置決め及び取付けを行うこと
か可能となるので、作業性か格段に向上する。Furthermore, since the ceiling girder 4 is held movably up and down relative to the steel frames 1 to 3 by the gloss amplifier device 13, when assembling the boiler main body upper part 7 to the lower part of the ceiling girder 4, conventionally the third stage steel frame Whereas each component of the boiler body 5 must be moved up and down by a crane (not shown) to position and attach it to the ceiling girder 4 fixed to the frame 3, according to the method of the present invention, The upper part of the boiler main body 7 can also be viewed from the side of the ceiling beam 4, which is held at the top of the steel frame 1.2 of the first and second stages so as to be able to rise and fall freely.
Since positioning and installation can be performed from the side of each component, work efficiency is greatly improved.
第(1図は本発明の他の実施例であり、第1図に示すよ
うに第1段目の鉄骨枠1の構築と並行して天井大梁4を
地上部に構築する代りに、第1段目の鉄骨枠1のみを先
ず構築し、その後第2図に示すように第2段目の鉄骨枠
2の構築と並行して天井大梁4及び吊りロット6や管類
を直接第1段目の鉄骨枠(の頂部で構築するようにし、
以後は前記実施例と同様の手順てボイラを建設して行く
ものであり、このようにしても前記実施例と同様の作用
効果を得ることかできる。Figure 1 shows another embodiment of the present invention, in which instead of constructing the ceiling girder 4 on the ground level in parallel with the construction of the first stage steel frame 1 as shown in Figure 1, the first Only the steel frame 1 of the tier is constructed first, and then, as shown in Fig. 2, in parallel with the construction of the steel frame 2 of the second tier, the ceiling beams 4, hanging rods 6, and pipes are directly attached to the first tier. to be constructed at the top of the steel frame (of
Thereafter, the boiler will be constructed using the same procedure as in the embodiment described above, and even in this manner, the same effects as in the embodiment described above can be obtained.
第12図・第13図は天井大梁4を第1段目〜第3段目
の鉄骨枠l〜3に対して持ち上げる方法の他の例であり
、第12図に示すように、ジヤツキアップ装置13の下
端側のクランプ機構16に支持板25を介して天井大梁
4の上端を支持し、天井大梁4を上方から引き上げて行
くようにしたものである。12 and 13 show other examples of how to lift the ceiling girder 4 relative to the first to third steel frames l to 3. As shown in FIG. The upper end of the ceiling beam 4 is supported by a clamp mechanism 16 on the lower end side via a support plate 25, and the ceiling beam 4 is pulled up from above.
このようにすることにより、前記方法と同様の作用効果
を得ることかできるか、天井大梁4を押し上げる場合に
比べて、足場である鉄骨枠1〜30安定性が良くなるの
で、作業の安全性か向上する。By doing this, it is possible to obtain the same effect as the above-mentioned method, and the stability of the steel frames 1 to 30, which are the scaffolds, is better than when pushing up the ceiling girder 4, so the safety of the work is improved. or improve.
又、万一、天井大梁4の持ち上げ作業中に地震等の水平
力か発生した場合、押し上げ方式だと、ジヤツキアップ
装置I3か倒れてもとの状態に戻すのが困難になるおそ
れがあるか、引き上げ方式とすれは、このようなジヤツ
キアップ装置13の転倒の不安をなくすことかできる。Also, in the unlikely event that a horizontal force such as an earthquake occurs during lifting of the ceiling girder 4, if the push-up method is used, is there a risk that the jack-up device I3 may fall and make it difficult to return to its original state? The pull-up method can eliminate such concerns about the jack-up device 13 falling over.
尚、この場合には、第13図に示すように、案内架構1
3に第3段目の鉄骨枠3よりも上方へ延びる延長部26
を形成して、天井大梁4を第3段目の鉄骨枠3の頂部ま
で引き上げる際の、ジヤツキアップ装R13の足場を確
保するようにする。In this case, as shown in FIG.
3, an extension part 26 extending upward from the third stage steel frame 3
is formed to secure a foothold for the jack-up equipment R13 when pulling up the ceiling girder 4 to the top of the third stage steel frame 3.
第14図は天井大梁4を第3段目の鉄骨枠3に対して持
ち上げる方法の更に他の例であり、第3段目の鉄骨枠3
頂部に別のジヤツキ27を取付けて、第2段目の鉄骨枠
2がら一気に第3段目の鉄骨枠3へ天井大梁4を引き上
げるようにしたものである。FIG. 14 shows still another example of how to lift the ceiling beam 4 relative to the third stage steel frame 3.
Another jack 27 is attached to the top to pull up the ceiling girder 4 from the second stage steel frame 2 to the third stage steel frame 3 at once.
このようにすることにより、前記各方法と同様の作用効
果を得ることかできるが、更に、より一層の工期の短縮
化を図ることが可能となる。By doing so, it is possible to obtain the same effects as the above-mentioned methods, but it is also possible to further shorten the construction period.
尚、本発明のボイラの建設方法は、上述の実施例にのみ
限定されるものではなく、鉄骨枠は3段以上に組み上げ
ても良いこと、その他車発明の要旨を逸脱しない範囲内
において種々変更を加え得ることは勿論である。The boiler construction method of the present invention is not limited to the above-described embodiments, and the steel frame may be assembled in three or more stages, and various other changes may be made without departing from the gist of the vehicle invention. Of course, it is also possible to add
[発明の効果]
以上説明したように、本発明のボイラの建設方法によれ
ば、下記の如き種々の優れた効果を奏し得る。[Effects of the Invention] As explained above, according to the boiler construction method of the present invention, various excellent effects as described below can be achieved.
■ 第1段目の鉄骨枠の構築開始から第2段目の鉄骨枠
の構築終了までの間に、並行して第1段目の鉄骨枠に対
して天井大梁及び吊すロッドや管類を構築し、且つ、第
3段目の鉄骨枠の構築と並行して第2段目の鉄骨枠の上
部へ持ち上げた天井大梁の下部に吊りロッドや、管類を
利用してボイラ本体上部を構築するようにしたので、工
期の短縮を図ることができる。■ Between the start of construction of the first stage steel frame and the completion of construction of the second stage steel frame, the ceiling beams, hanging rods and pipes are constructed in parallel to the first stage steel frame. In addition, in parallel with the construction of the third stage steel frame, the upper part of the boiler body is constructed using hanging rods and pipes at the bottom of the ceiling girder that has been lifted to the top of the second stage steel frame. This makes it possible to shorten the construction period.
■ 天井大梁の構築及びボイラ本体上部の構築か低所作
業となるため、全体として高所作業か減少され、従って
、作業の危険性を減少することができる。■ Since the construction of the ceiling girder and the construction of the upper part of the boiler body are done in low places, the amount of work in high places is reduced as a whole, and therefore, the danger of the work can be reduced.
■ 低所作業が増えるため作業性が向上し、上記に加え
て一層工期の短縮を図ることができる。■ Work efficiency is improved because there is more work to be done in low places, and in addition to the above, it is possible to further shorten the construction period.
第1図は本発明の一実施例の方法における第1の工程を
示す側面図、第2図は第2の工程を示す側面図、第3図
は第3の工程を示す側面図、第4図は第4の工程を示す
側面図、第5図は本発明の方法を実施するジヤツキアッ
プ装置の設置位置を示す鉄骨枠の平面図、第6図はジヤ
ツキアップ装置部分の側面図であって第7図の■■矢視
図、第7図は第6図の■−■矢視図、第8図は第7図の
■−■矢視図、第9図はジヤツキアップ装置の作動状態
を示す側面図、第1O図は第3段目の鉄骨枠の上部まて
天井大梁を持ち上げた時のジヤツキアップ装置の状態を
示す側面図、第11図は本発明の他の実施例の方法の第
1の工程を示す側面図、第12図は本発明の方法を実施
するジヤツキアップ装置の他の使用例を示す側面図、第
13図は第12図の場合に案内架橋に形成する延長部を
示す第3図と同様の図、第14図は本発明の方法を実施
する更に他の例を示す第3図と同様の図、第15図は従
来の方法の第1の工程を示す側面図、第16図は従来の
方法の第2の工程を示す側面図である。
図中lは第1段目の鉄骨枠、2は第2段目の鉄骨枠、3
は第3段目の鉄骨枠、4は天井大梁、5はボイラ本体、
6は吊りロッド、7はボイラ本体上部、
8
はボイラ本体−F部を示す。
特
許
出
願
人
石J
島播磨重工業株式会社FIG. 1 is a side view showing the first step in a method according to an embodiment of the present invention, FIG. 2 is a side view showing the second step, FIG. 3 is a side view showing the third step, and FIG. The figure is a side view showing the fourth step, FIG. Figure 7 is a view from the ■-■ arrow in Figure 6, Figure 8 is a view from the ■-■ arrow in Figure 7, and Figure 9 is a side view showing the operating state of the jack-up device. 10 is a side view showing the state of the jacking up device when the ceiling girder is lifted up to the top of the third stage steel frame, and FIG. FIG. 12 is a side view showing another example of the use of the jack-up device for carrying out the method of the present invention, and FIG. 13 is a third side view showing the extension part formed on the guide bridge in the case of FIG. 14 is a view similar to FIG. 3 showing still another example of carrying out the method of the present invention, FIG. 15 is a side view showing the first step of the conventional method, and FIG. The figure is a side view showing the second step of the conventional method. In the figure, l is the steel frame of the first stage, 2 is the steel frame of the second stage, and 3
is the third stage steel frame, 4 is the ceiling beam, 5 is the boiler body,
6 indicates a hanging rod, 7 indicates the upper part of the boiler body, and 8 indicates the F section of the boiler body. Patent applicant Ishi J Shimaharima Heavy Industries Co., Ltd.
Claims (1)
大梁を支え、該天井大梁にボイラ本体を吊り下げ支持す
るボイラの建設方法において、第1段目の鉄骨枠の構築
終了後第1段目の鉄骨枠の上部に第2段目の鉄骨枠の構
築を開始すると共に、第1段目の鉄骨枠の構築開始から
第2段目の鉄骨枠の構築終了までの間に第1段目の鉄骨
枠に天井大梁及び吊りロッドや管類を構築し、第2段目
の鉄骨枠の構築終了後第2段目の鉄骨枠の上部に第3段
目以降の鉄骨枠の構築を開始すると共に、第3段目以降
の鉄骨枠の構築中に天井大梁を第2段目の鉄骨枠の高さ
まで持ち上げて天井大梁下部の吊り具及び管類に対しボ
イラ本体上部を組立て、第3段目以降の鉄骨枠の構築終
了後ボイラ本体上部ごと天井大梁を第3段目以降の鉄骨
枠の上部まで持ち上げて前記ボイラ本体上部に対しボイ
ラ本体下部を組立てることを特徴とするボイラの建設方
法。1) In a boiler construction method in which a ceiling beam is supported by a steel frame assembled in three or more stages vertically, and the boiler body is suspended and supported from the ceiling beam, the first stage is constructed after the first stage steel frame is constructed. At the same time, the construction of the second stage steel frame is started on top of the second stage steel frame, and the first stage steel frame is Build ceiling girders, hanging rods, and pipes on the steel frame, and after completing the construction of the second stage steel frame, start constructing the third and subsequent steel frames on top of the second stage steel frame. At the same time, while constructing the steel frame for the third and subsequent stages, the ceiling girder was lifted to the height of the second stage steel frame, and the upper part of the boiler body was assembled to the hanging fixtures and pipes at the bottom of the ceiling girder, and the third stage steel frame was constructed. After the construction of the subsequent steel frame is completed, the ceiling girder together with the upper part of the boiler body is lifted up to the upper part of the steel frame from the third stage onwards, and the lower part of the boiler body is assembled to the upper part of the boiler body.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12101690A JPH03241203A (en) | 1989-12-12 | 1990-05-10 | Method of constructing boiler |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP32243089 | 1989-12-12 | ||
JP1-322430 | 1989-12-12 | ||
JP12101690A JPH03241203A (en) | 1989-12-12 | 1990-05-10 | Method of constructing boiler |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03241203A true JPH03241203A (en) | 1991-10-28 |
Family
ID=26458488
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12101690A Pending JPH03241203A (en) | 1989-12-12 | 1990-05-10 | Method of constructing boiler |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03241203A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007315732A (en) * | 2006-05-29 | 2007-12-06 | Hitachi Plant Technologies Ltd | Installation method of boiler furnace wall |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS538841A (en) * | 1976-07-13 | 1978-01-26 | Matsushita Electric Ind Co Ltd | High frequency heater |
-
1990
- 1990-05-10 JP JP12101690A patent/JPH03241203A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS538841A (en) * | 1976-07-13 | 1978-01-26 | Matsushita Electric Ind Co Ltd | High frequency heater |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007315732A (en) * | 2006-05-29 | 2007-12-06 | Hitachi Plant Technologies Ltd | Installation method of boiler furnace wall |
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