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JP3671242B2 - How to install the equipment - Google Patents
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JP3671242B2 - How to install the equipment - Google Patents

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Publication number
JP3671242B2
JP3671242B2 JP17557395A JP17557395A JP3671242B2 JP 3671242 B2 JP3671242 B2 JP 3671242B2 JP 17557395 A JP17557395 A JP 17557395A JP 17557395 A JP17557395 A JP 17557395A JP 3671242 B2 JP3671242 B2 JP 3671242B2
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Japan
Prior art keywords
equipment
existing
installation
temporary
reactor
Prior art date
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Expired - Fee Related
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JP17557395A
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Japanese (ja)
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JPH094256A (en
Inventor
豊 寺内
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JGC Corp
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JGC Corp
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Priority to JP17557395A priority Critical patent/JP3671242B2/en
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Description

【0001】
【産業上の利用分野】
本発明は、機器類の据付方法、特に、リアクター、タワー等の機器据付工事及び構造物の据付、組立工事に適用される機器類の据付方法に関する。
【0002】
【従来の技術】
従来、各種プラントの建設に際して、リアクター、タワー等の機器据付及び構造物の据付、組立には、大型クレーを用いて行う工法、及び敷地内に建てたジンポール等の架構を介して機器及び構造物を巻上ウインチにより巻き上げる工法が採用されている。
また、特願平5−320055号には、図4に示すように、建設地盤Gに敷設された基礎土台30の周囲に脚柱11、12(4脚の内、2脚を断面的に図示)を立設し、脚柱11、12の最上部に水平方向に延びる態様で吊りビーム20を架設し、吊りビーム20に構造物100を吊り上げるための索装備21を設けた吊上設備1を仮設し、構造物100を据付ける際に、索装備21を構造物100の頭部のラグ101に掛止し、一方、構造物100の底部をコロ台車200に搭載し、索装備21を地上に設置した巻上ウインチ(図示せず)により巻上ワイヤS1を介して動作させることによって構造物100を引き上げ、基礎土台30に据付ける工法が記載されている。
【0003】
【発明が解決しようとする課題】
大型クレーンを用いる工法では、大型クレーンを設置するために広大な敷地面積を必要とし、また、ジンポール等の架構を介して行う工法では、仮設基礎、支柱及びガイドワイヤーが必要であり、また、特願平5−320055号に記載の工法の場合、同様に、吊上設備の仮設基礎及び仮設支柱が必要であり、いずれも建設地盤の狭い場所では敷地を確保できず、大型クレーンの設置、ジンポール等の架構や吊上設備の構築ができない、という問題がある。
特に、プラントの増設に伴ってリアクター、タワー等の機器及び構造物を追加設置するような場合、既設のプラントが近接しているため、建設地盤が非常に狭く、上述した工法では据付作業を実施することができない。
また、ジンポール等の架構や吊上設備は、仮設支柱を建設地盤に直接立設することから、仮設物の資材を大量に必要とすることになり、このため、作業に要する労力負担が大きく、かつ、作業工程が多様化し、同時にコスト高になると、いう問題がある。
【0004】
本発明の目的は、上述した事情に鑑み、建設地盤の狭い場所における据付設備の構築を可能とすると共に、仮設資材の大幅な削減、作業の省力化を図るに好適な機器類の据付方法を提供することにある。
【0005】
【課題を解決するための手段】
上記目的を達成するために、既設の機器類を複数利用する据付方法であって、既設の各機器類頂部に受台を設置し、該受台に仮設支柱を固定すると共に、隣接する既設の機器類の受台に固定した仮設支柱を少なくとも2本利用して当該仮設支柱の最上部に据付梁を設置し、該据付梁に取り付けた吊上装置を用いて新設の機器類を吊り上げ、所定箇所に据え付ける。
ここで、既設の機器類頂部と受台は、受台のフランジ継手と既設の機器類自体のフランジ継手を結合することによって固定する
【0006】
【作用】
本発明は、従来の工法では据付作業が困難であった狭い場所においても、既設リアクター等の機器類を利用して、その頂部に据付設備を構築することができ、据付作業を円滑に行うことが可能となり、また、既設リアクター等の機器類を利用して据付設備を構築することにより、据付設備を形成する仮設資材を大幅に削減することができ、また、仮設資材の大幅な削減に伴い、作業量が削減され、作業工程が減少し、この結果、作業の省力化が図られる。
【0007】
【実施例】
以下、本発明の実施例を図面を用いて説明する。
図1は、本発明の一実施例を示す。図1において、据付設備Sは、2本の仮設支柱1,2、仮設支柱1,2の最上部に水平方向に設置された仮設トネ(据付梁)3、仮設トネ3に取り付けられた吊上装置4を具備する。2本の仮設支柱1,2は、それぞれ既設リアクター5,6の頂部5−1,6−1に立設する。ここで、仮設支柱1,2は、互いにボルト接続された短い支柱ユニットから構成される。吊上装置4は、新設リアクター7を基礎土台8に据付けるために吊り上げる。吊上装置4としては、図4に示したように、仮設トネ(吊りビーム)3に索装備を取り付け、巻上げワイヤを介して地上に設置した巻上ウインチを用いる。
新設リアクター7を既設リアクター5,6間の基礎土台に据え付けるには、吊上装置4を作動し、巻上ウインチ(図示せず)により新設リアクター7を吊り上げ、基礎土台8に据付ける。
【0008】
図2に、立設する仮設支柱と既設リアクターの頂部の詳細構造を示す。図2(a)は仮設支柱と既設リアクターの頂部の正面平面図であり、図2(b)はその上からみた平面図である。既設リアクター5の頂部5−1には仮設支柱1の受台10として大型H鋼を+文字状に配設する。+文字状の大型H鋼の交叉部分はブラインドフランジ9等を溶接して固定する。ここで、既設リアクター5の頂部5−1と大型H鋼の受台10は、ボルト、ナット11を用いてブラインドフランジ9と既設リアクター5自体のフランジ20を結合することによつて、固定される。また、受台10の大型H鋼の4本の脚部10−1は既設リアクター5の頂部5−1に当接し、4本の脚部10−1に仮設支柱1が立設する。仮設支柱1は、それぞれ角パイプ1−1,1−2,1−3,1−4から形成され、運搬可能な長さに分割し得るように構成されている。なお、仮設支柱1は、横梁12及びブレース13を用いて互いに連結し、補強してもよい。
【0009】
図3は、実際のプラントの敷地内を示した平面図であり、この敷地内に本発明を適用してリアクターを新設する例を説明する。ここでは、新設リアクター7をリアクターRT−101BとしてA地点に新設する。図3から明らかなように、建設地盤のA地点には、既設リアクターRT−101A,RT−100Bが近接し、これらの既設リアクターの隣には、熱交換器HE−102D,HE−102Hが設置され、狭い空地を挾んで既設リアクターRT−201A,RT−201B、さらにタワーTW−102、ベッセルVE−104,VE−105が設置されている。なお、狭い空地は、クレーンを設置できる広さでなく、また、ジンポール等の架構や従来の吊上設備を構築できる面積でない。また、GR−100はグレーチングを表す。このように、図示のプラントの敷地内は、既設リアクター、熱交換器、ベッセル、タワーが近接して設置され、空地が狭いため、大型クレーンを設置したり、ジンポール等の架構や吊上設備を構築することかできない状況にある。
そこで、新設リアクター7を新設するに際し、本実施例では、先ず、グレーチングGR−100を一時的に撤去し、新設リアクター7を搬入できる空間を確保する。次に、建設地盤のA地点に隣接する既設リアクターRT−101AとRT−100Bを利用して、各既設リアクターRT−101A,RT−100Bの頂部に本実施例として上述した据付設備Sを立設し、この据付設備Sに吊上装置4を取り付け、続いて、吊上装置4を作動して、図1に示すように、新設リアクター7を吊り上げ、その後基礎土台8に吊り下げて建設地盤のA地点に据付ける。この作業時において既設リアクターにかかる荷重は、垂直方向であり、強度上問題はない。
このように、プラントの増設に伴ってリアクターを追加設置する場合、建設地盤が非常に狭く、従来の工法では据付作業が実施できないとき、本実施例では、近接する既設のプラントを利用して、据付設備を構築し、この据付設備によって新設リアクター等を据付設置することができる。
【0010】
なお、本実施例では、リアクターを新設の据付機器として説明したが、新設の据付機器としては、タワー等の機器及び構造物等の各種プラント機器があり、これら機器及び構造物等の各種プラント機器を据付けるときにも適用できる。さらに、各種プラント機器の据付け以外に、様々な各種機器を据付ける際にも、本実施例を有効に適用できることは云うまでもない。
また、本実施例では、既設リアクターの頂部に据付設備を構築するとして説明したが、既設リアクターに限らず、その他の様々な各種機器の頂部に据付設備を構築してもよいことは勿論である。
【0011】
【発明の効果】
以上説明したように、本発明によれば、従来の工法では据付作業が困難であった狭い場所においても、既設リアクター等様々な各種機器を利用して、その頂部に据付設備を構築することができ、据付作業を円滑に行うことができる。
また、既設リアクター等様々な各種機器を利用して、据付設備を構築するので、建設地盤に直接立設する場合に比し、据付設備を形成する仮設資材を大幅に削減することができる。特に、リアクターやタワー等の長尺物を新設する場合、有効である。
また、仮設資材の大幅な削減に伴い、作業量が削減され、作業工程が減少するので、作業の省力化が図られると共に、仮設資材費が節減され、コスト安が図られる。
また、本実施例の据付設備では、据付作業が狭い範囲に限定されるため、作業時における立入り禁止のエリアが狭く、換言すれば、安全範囲を広く採ることができる。
【図面の簡単な説明】
【図1】本発明の一実施例を示す。
【図2】立設する仮設支柱と既設リアクターの頂部の詳細構造を示す。
【図3】実際のプラントの敷地内に本発明を適用した例を示す。
【図4】従来の吊上設備を示す。
【符号の説明】
S 据付設備
1,2 仮設支柱
3 仮設トネ(据付梁)
4 吊上装置
5,6 既設リアクター
5−1,6−1 既設リアクターの頂部
7 新設リアクター
8 基礎土台
9 ブラインドフランジ
10 受台
[0001]
[Industrial application fields]
The present invention relates to a method for installing equipment, and more particularly to a method for installing equipment applied to equipment installation work such as reactors and towers, installation of structures, and assembly work.
[0002]
[Prior art]
Conventionally, in the construction of various plants, equipment and structures such as reactors and towers, as well as installation and assembly of structures, construction methods using large clay, and structures such as ginpoles built on the site are used. The method of winding up the wind with a winch is adopted.
In Japanese Patent Application No. 5-320055, as shown in FIG. 4, pedestals 11 and 12 (two of the four legs are shown in cross section around the foundation base 30 laid on the construction ground G). ), The suspension beam 20 is installed on the uppermost part of the pillars 11 and 12 in a horizontally extending manner, and the lifting equipment 1 provided with the rope equipment 21 for lifting the structure 100 on the suspension beam 20 is provided. When temporarily installing and installing the structure 100, the rope equipment 21 is hooked on the lug 101 at the head of the structure 100, while the bottom of the structure 100 is mounted on the roller carriage 200, and the rope equipment 21 is mounted on the ground. A method of lifting the structure 100 by operating it through a winding wire S1 by a winding winch (not shown) installed on the foundation and installing it on the foundation foundation 30 is described.
[0003]
[Problems to be solved by the invention]
The construction method using a large crane requires a large site area to install the large crane, and the construction method performed via a frame such as a ginpole requires a temporary foundation, support column and guide wire. Similarly, in the case of the method described in No. 5-320055, a temporary foundation and a temporary support column for the lifting equipment are necessary, and neither can secure a site in a narrow place of the construction ground. There is a problem that it is impossible to construct a frame such as a frame or a lifting equipment.
In particular, when additional equipment and structures such as reactors and towers are installed along with the expansion of the plant, the existing ground is close, so the construction ground is very narrow. Can not do it.
In addition, the frame and lifting equipment such as ginpoles require a large amount of temporary materials since the temporary support columns are erected directly on the construction ground. In addition, there is a problem that the work process is diversified and the cost is increased at the same time.
[0004]
In view of the circumstances described above, the object of the present invention is to provide a device installation method suitable for constructing an installation facility in a narrow place of construction ground, as well as greatly reducing temporary materials and saving labor. It is to provide.
[0005]
[Means for Solving the Problems]
In order to achieve the above-mentioned purpose, it is an installation method that uses a plurality of existing equipments, in which a cradle is installed at the top of each existing equipment, a temporary support column is fixed to the cradle, and an adjacent existing Using at least two temporary struts fixed to the equipment cradle, install the installation beam on the top of the temporary support pillar , lift the newly installed equipment using the lifting device attached to the installation beam, and Install in place.
Here, the existing equipment top and the cradle are fixed by joining the flange joint of the cradle and the flange joint of the existing equipment itself .
[0006]
[Action]
The present invention makes it possible to construct an installation facility on the top of equipment using equipment such as an existing reactor even in a narrow place where the installation work was difficult with the conventional construction method, and to perform the installation work smoothly. In addition, by constructing the installation equipment using equipment such as existing reactors, the temporary materials forming the installation equipment can be greatly reduced. The amount of work is reduced and the number of work processes is reduced. As a result, labor saving is achieved.
[0007]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 shows an embodiment of the present invention. In FIG. 1, the installation equipment S includes two temporary columns 1, 2, a temporary beam 3 installed horizontally at the top of the temporary columns 1, 2, and a suspension mounted on the temporary beam 3. A device 4 is provided. The two temporary columns 1 and 2 are erected on the tops 5-1 and 6-1 of the existing reactors 5 and 6, respectively. Here, the temporary struts 1 and 2 are composed of short strut units that are bolted to each other. The lifting device 4 lifts the new reactor 7 to install it on the foundation base 8. As the lifting device 4, as shown in FIG. 4, a hoisting winch installed on the ground via a hoisting wire with rope equipment attached to a temporary tone (hanging beam) 3 is used.
To install the new reactor 7 on the foundation foundation between the existing reactors 5 and 6, the lifting device 4 is operated, the new reactor 7 is lifted by a hoisting winch (not shown), and is installed on the foundation foundation 8.
[0008]
FIG. 2 shows the detailed structure of the temporary support column to be erected and the top of the existing reactor. FIG. 2A is a front plan view of the temporary strut and the top of the existing reactor, and FIG. 2B is a plan view seen from above. Large steel H is arranged in a letter shape as a receiving base 10 for the temporary support column 1 at the top portion 5-1 of the existing reactor 5. + The crossed portion of the large letter H steel is fixed by welding the blind flange 9 or the like. Here, the top 5-1 of the existing reactor 5 and the large H steel cradle 10 are fixed by connecting the blind flange 9 and the flange 20 of the existing reactor 5 itself using bolts and nuts 11. . Also, the four legs 10-1 of the large H steel of the cradle 10 abut on the top 5-1 of the existing reactor 5, and the temporary support column 1 is erected on the four legs 10-1. The temporary support columns 1 are formed from square pipes 1-1, 1-2, 1-3, and 1-4, respectively, and are configured to be divided into transportable lengths. In addition, the temporary support | pillar 1 may mutually be connected and reinforced using the cross beam 12 and the brace 13. FIG.
[0009]
FIG. 3 is a plan view showing the actual site of the plant, and an example in which a reactor is newly installed in the site by applying the present invention will be described. Here, a new reactor 7 is newly installed at point A as a reactor RT-101B. As is apparent from FIG. 3, the existing reactors RT-101A and RT-100B are close to the point A of the construction ground, and the heat exchangers HE-102D and HE-102H are installed next to these existing reactors. In addition, existing reactors RT-201A and RT-201B, tower TW-102, vessels VE-104, and VE-105 are installed in a narrow space. The narrow open space is not an area where a crane can be installed, nor is an area where a frame such as a ginpole or a conventional lifting facility can be constructed. GR-100 represents grating. In this way, the existing reactor, heat exchanger, vessel, and tower are installed in the vicinity of the plant site shown in the figure, and the open space is narrow.Therefore, large cranes are installed, frames such as ginpoles, and lifting equipment are installed. It is in a situation where it cannot be built.
Therefore, when newly installing the new reactor 7, in this embodiment, first, the grating GR-100 is temporarily removed to secure a space in which the new reactor 7 can be carried. Next, using the existing reactors RT-101A and RT-100B adjacent to the point A of the construction ground, the installation equipment S described above as the present embodiment is erected on the tops of the existing reactors RT-101A and RT-100B. Then, the lifting device 4 is attached to the installation equipment S, and then the lifting device 4 is operated to lift the new reactor 7 and then to the foundation base 8 as shown in FIG. Install at point A. During this operation, the load applied to the existing reactor is in the vertical direction, and there is no problem in strength.
In this way, when additional reactors are installed along with the expansion of the plant, the construction ground is very narrow, and when installation work cannot be performed with the conventional construction method, in this example, using an adjacent existing plant, An installation facility can be constructed, and a new reactor or the like can be installed and installed by this installation facility.
[0010]
In this embodiment, the reactor has been described as a newly installed device. However, the newly installed device includes a tower and other plant equipment such as structures, and various plant equipment such as structures. It can also be applied when installing. Furthermore, it goes without saying that the present embodiment can be effectively applied to various types of equipment other than installation of various plant equipment.
In the present embodiment, the installation facility is described as being constructed at the top of the existing reactor. However, it is needless to say that the installation facility may be constructed at the top of various other devices, not limited to the existing reactor. .
[0011]
【The invention's effect】
As described above, according to the present invention, it is possible to construct an installation facility on the top of various equipment such as an existing reactor even in a narrow place where the conventional construction method is difficult to install. The installation work can be carried out smoothly.
In addition, since various types of equipment such as existing reactors are used to construct the installation equipment, the temporary materials forming the installation equipment can be greatly reduced compared to the case where the installation equipment is erected directly on the construction ground. This is particularly effective when a long object such as a reactor or a tower is newly installed.
In addition, the amount of work is reduced and the number of work processes is reduced due to a significant reduction in temporary materials, so that labor savings are achieved, temporary material costs are reduced, and costs are reduced.
Moreover, in the installation equipment of the present embodiment, the installation work is limited to a narrow range, so the area where entry is prohibited during the work is narrow, in other words, a wide safety range can be taken.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention.
FIG. 2 shows a detailed structure of a temporary column to be erected and the top of an existing reactor.
FIG. 3 shows an example in which the present invention is applied to an actual plant site.
FIG. 4 shows a conventional lifting equipment.
[Explanation of symbols]
S Installation equipment 1, 2 Temporary support 3 Temporary tunnel (installation beam)
4 Lifting devices 5 and 6 Existing reactors 5-1 and 6-1 Top of existing reactor 7 New reactor 8 Foundation base 9 Blind flange 10 Receiving base

Claims (2)

既設の機器類を複数利用する据付方法であって、前記既設の各機器類頂部に受台を設置し、該受台に仮設支柱を固定すると共に、隣接する既設の機器類の受台に固定した前記仮設支柱を少なくとも2本利用して当該仮設支柱の最上部に据付梁を設置し、該据付梁に取り付けた吊上装置を用いて新設の機器類を吊り上げ、
所定箇所に据え付けることを特徴とする機器類の据付方法。
An installation method using a plurality of existing devices, in which a cradle is installed at the top of each of the existing devices, a temporary support column is fixed to the cradle, and a pedestal of an adjacent existing device is fixed. The installation beam is installed on the uppermost portion of the temporary column using at least two temporary columns, and the newly installed devices are lifted using the lifting device attached to the installation beam.
Installation method of equipment characterized by being installed at a predetermined location.
請求項1において、前記既設の機器類頂部と前記受台は、前記受台のフランジ継手と前記既設の機器類自体のフランジ継手を結合することによって固定することを特徴とする機器類の据付方法。2. The apparatus installation method according to claim 1, wherein the top of the existing equipment and the cradle are fixed by joining a flange joint of the cradle and a flange joint of the existing equipment itself. .
JP17557395A 1995-06-20 1995-06-20 How to install the equipment Expired - Fee Related JP3671242B2 (en)

Priority Applications (1)

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JP17557395A JP3671242B2 (en) 1995-06-20 1995-06-20 How to install the equipment

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JP17557395A JP3671242B2 (en) 1995-06-20 1995-06-20 How to install the equipment

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JPH094256A JPH094256A (en) 1997-01-07
JP3671242B2 true JP3671242B2 (en) 2005-07-13

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CN116397941A (en) * 2023-05-24 2023-07-07 中国核工业二四建设有限公司 A construction method for a gantry transfer platform of a nuclear power plant

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