JP5419003B2 - Construction method of storage tank jack and floating roof storage tank - Google Patents

Construction method of storage tank jack and floating roof storage tank Download PDF

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JP5419003B2
JP5419003B2 JP2008305134A JP2008305134A JP5419003B2 JP 5419003 B2 JP5419003 B2 JP 5419003B2 JP 2008305134 A JP2008305134 A JP 2008305134A JP 2008305134 A JP2008305134 A JP 2008305134A JP 5419003 B2 JP5419003 B2 JP 5419003B2
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jack
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floating roof
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deck
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JP2010127046A (en
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宏治 石井
眞一 岩崎
和正 佐藤
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株式会社石井鐵工所
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この発明は貯槽用ジャッキ装置と、このジャッキ装置を使用して浮屋根式貯槽の底板や基礎、或いは浮屋根などを部分的、若しくは全体にわたって取替えや修復などの工事施工を行う浮屋根式貯槽の工事施工法に関するものである。   This invention relates to a storage tank jack device, and a floating roof storage tank that performs construction work such as replacement or repair of the bottom plate, foundation, or floating roof of the floating roof storage tank partially or entirely using this jack device. It relates to the construction method.
浮屋根式貯槽は、底板に腐食や損傷が生じたり基礎が沈下した場合や、浮屋根が変形などした場合に、浮屋根を底板上の所定高さに保持した状態で、底板や基礎、或いは浮屋根などの部分又は全体の取替えや修復などの工事施工を行っている。   Floating roof storage tanks are used when the bottom plate is corroded or damaged, or when the foundation sinks, or when the floating roof is deformed. We perform construction work such as replacement or restoration of parts such as floating roof or the whole.
従来の特公昭43−17872号「浮屋根タンクにおける浮屋根組立工法」は、浮屋根下部へ送風機による空気を送入し浮屋根を浮揚させた後に、管状支柱の仮サポートを設置し浮屋根を支持し、従来の多数の架台を省略する組立工法である。   Japanese Patent Publication No. Sho 43-17787 “Floating Roof Assembly Method for Floating Roof Tank” sends air by a blower to the lower part of the floating roof and lifts the floating roof, and then installs temporary support of tubular struts to install the floating roof. It is an assembly method that supports and eliminates many conventional mounts.
従来の特公平1−26946号「浮屋根式タンクの浮屋根の改造方法」は、タンク内に水を注入し浮屋根を浮上させた後に、その上で上部デッキを組立てる方法の事例である。   Conventional Japanese Patent Publication No. 1-29466 “Floating Roof Remodeling Method for Floating Roof Type Tank” is an example of a method of assembling an upper deck after injecting water into the tank to float the floating roof.
従来の特公昭53−40970号「浮屋根式貯槽の浮屋根組立工法」は、浮屋根を底板上で組立てたのち、上端にワイヤーのガイドローラを取付けたガイドポストを配列し浮屋根を通貫させ、浮屋根を所定高さ位置まで吊上げる工法である。   In Japanese Patent Publication No. 53-40970, “Floating Roof Assembly Method for Floating Roof Storage Tank”, after the floating roof is assembled on the bottom plate, a guide post with a wire guide roller attached to the upper end is arranged to penetrate the floating roof. This is a method of lifting the floating roof to a predetermined height position.
従来の特許第3516215号「二重殻貯槽内槽底板の施工法とその昇降装置」は、内槽底板に貫通口を設け、ポーストを貫通させて、このポーストに設けた昇降装置によって底板を昇降する施工法である。   Conventional Patent No. 3516215 “Construction Method of Double-shell Storage Tank Bottom Plate and its Lifting Device” provides a through-hole in the bottom plate of the inner tank, penetrates the post, and lifts the bottom plate by the lifting device provided in this post. It is a construction method to do.
浮屋根式貯槽の底板取替えや基礎修復などの工事施工を行う従来の工事施工法の事例を、図5及び図6に基づいて説明する。図5は、浮屋根式貯槽の底板2を取替える状況を説明する平面図、図6は、図5の部分を示す側面説明図である。
図5に示すように、2aは底板取替部でこの底板取替部2aに位置する浮屋根の支柱、つまりデッキサポート3を取外すために、デッキサポート3近傍の必要箇所に仮支持装置100を設置してデッキの荷重を支える。必要に応じてこの底板取替部2aの箇所を順次移動し、仮支持装置100を設置してデッキサポート3を取り外しさらに複数の仮支持材100Aを設置して底板の取替えや基礎の修復、或いは浮屋根の補修を行う。
The example of the conventional construction method which performs construction work, such as baseplate replacement | exchange of a floating roof type storage tank and foundation restoration, is demonstrated based on FIG.5 and FIG.6. FIG. 5 is a plan view for explaining a situation where the bottom plate 2 of the floating roof type storage tank is replaced, and FIG. 6 is a side explanatory view showing a portion of FIG.
As shown in FIG. 5, reference numeral 2 a denotes a bottom plate replacement portion. In order to remove the floating roof column located on the bottom plate replacement portion 2 a, that is, the deck support 3, the temporary support device 100 is installed at a necessary location near the deck support 3. Install to support the load on the deck. If necessary, the position of the bottom plate replacement portion 2a is sequentially moved, the temporary support device 100 is installed, the deck support 3 is removed, and a plurality of temporary support materials 100A are installed to replace the bottom plate, repair the foundation, or Repair the floating roof.
図6に示すように、デッキサポート3は、浮屋根1のスリーブ管5を貫通してピン6にて固定され底板2上のベースプレート4上に着地している。
また、仮支持装置100は、ジャッキ101、ジャッキフランジ101F、サポート102、サポートフランジ102Fなどを備えている。
底板取替部2aに位置するデッキサポート3を取り外すためには、このデッキサポート3が支えている浮屋根デッキ1の荷重を一時的に支持する仮支持装置100を設置することが必要であって、デッキサポート3を引き抜くためには、このデッキサポート3の上部に位置するスリーブ管5のピン6を引抜く必要がある。この際に、仮支持装置100のジャッキ101でサポート102を介してデッキ1を少し浮く程度に押上げなければピン6は引き抜くことができない。
この作業手順は、図6に示すように、(1)仮支持装置100を設置して浮屋根を少し持ち上げ、(2)デッキサポート3のピン6を引き抜き、(3)デッキサポート3を引抜き取り外し、(4)複数の仮支持材100Aを設置するものである。
As shown in FIG. 6, the deck support 3 passes through the sleeve tube 5 of the floating roof 1 and is fixed by the pins 6 and is landed on the base plate 4 on the bottom plate 2.
The temporary support device 100 includes a jack 101, a jack flange 101F, a support 102, a support flange 102F, and the like.
In order to remove the deck support 3 located in the bottom plate replacement part 2a, it is necessary to install a temporary support device 100 that temporarily supports the load of the floating roof deck 1 supported by the deck support 3. In order to pull out the deck support 3, it is necessary to pull out the pin 6 of the sleeve tube 5 located at the upper part of the deck support 3. At this time, the pin 6 cannot be pulled out unless the deck 1 is lifted up slightly by the jack 101 of the temporary support device 100 via the support 102.
As shown in Fig. 6, this work procedure consists of (1) installing the temporary support device 100 and lifting the floating roof slightly, (2) pulling out the pin 6 of the deck support 3, and (3) pulling out and removing the deck support 3. (4) A plurality of temporary support members 100A are installed.
この従来の浮屋根式貯槽の底板取替えや基礎修復、或いは浮屋根の工事施工法は、浮屋根デッキ1の下の狭い空間内で、油圧ジャッキや調整管等よりなる重量の大きい仮支持装置100を所定の場所まで一つずつ持ち運び、ジャッキフランジ101Fとサポートフランジ102Fを接続し設置していた。
殊に、浮屋根の重量が大きいダブルデッキの場合には、浮屋根の荷重を支えているデッキサポート3一本当たり周辺近傍の複数箇所に仮支持装置100を設置するか、或いは大型で重量の大きい強力な仮支持装置100を設置して浮屋根の重い荷重を支える必要が生じた。
This conventional floating roof storage tank bottom plate replacement, foundation repair, or floating roof construction method is performed in a narrow space under the floating roof deck 1 with a heavy temporary support device 100 made of a hydraulic jack, an adjustment pipe, and the like. Are carried one by one to a predetermined place, and the jack flange 101F and the support flange 102F are connected and installed.
In particular, in the case of a double deck having a large floating roof weight, temporary support devices 100 are installed at a plurality of locations near the periphery of each deck support 3 supporting the load of the floating roof, or large and heavy. It was necessary to install a large and strong temporary support device 100 to support a heavy load on the floating roof.
特公昭43−17872号Japanese Patent Publication No.43-17787 特公平1−26946号No. 1-26946 特公昭53−40970号Japanese Patent Publication No.53-40970 特許第3516215号Japanese Patent No. 3516215
従来の特公昭43−17872号「浮屋根タンクにおける浮屋根組立工法」は、浮屋根全体を空気圧で浮揚させて支持する組立工法であって、底板や基礎、或いは浮屋根の下部を補修する工法にはこのような空気圧で浮屋根を支持する方法は採用することはできない。   Japanese Patent Publication No. 43-17872 “Floating Roof Assembly Method in Floating Roof Tank” is an assembly method for supporting the whole floating roof by air pressure, and repairing the bottom plate, foundation, or lower part of the floating roof The method of supporting the floating roof with such air pressure cannot be adopted.
従来の特公平1−26946号「浮屋根式タンクの浮屋根の改造方法」は、タンク内に水を注入し浮屋根を浮上させて上部デッキを組立てる方法であって、底板や基礎、或いは浮屋根の下部を補修する工法には水を張って浮屋根を支持する方法は全く適用することができない。   Conventional Japanese Patent Publication No. 1-29466 “Floating Roof Remodeling Method for Floating Roof Tank” is a method of assembling the upper deck by injecting water into the tank and floating the floating roof. For the method of repairing the lower part of the roof, the method of supporting the floating roof by applying water cannot be applied at all.
従来の特公昭53−40970号「浮屋根式貯槽の浮屋根組立工法」は、浮屋根を底板上で組立てたのち浮屋根を所定高さ位置まで吊上げる工法であって、底板上に設置し浮屋根を貫通して設けたガイドポストを使用した吊上装置は、ガイドポスト位置の底板や基礎、或いは浮屋根の下部を補修することができない。   Japanese Patent Publication No. 53-40970 “Floating Roof Assembly Method for Floating Roof Type Storage Tank” is a method of assembling a floating roof on the bottom plate and then lifting the floating roof to a predetermined height position. The lifting device using the guide post provided through the floating roof cannot repair the bottom plate or foundation at the position of the guide post or the lower part of the floating roof.
従来の特許第3516215号「二重殻貯槽内槽底板の施工法とその昇降装置」は、内槽底板に設けた貫通口にポーストを貫通させ昇降装置によって底板を昇降する施工法であるが、このポースト設置箇所の底板や基礎、或いは浮屋根の下部を補修することはできない。   Conventional Patent No. 3516215 “Construction method and lifting device for double shell storage tank bottom plate” is a construction method in which a post is passed through a through-hole provided in the bottom plate of the inner tank and the bottom plate is lifted by a lifting device. It is not possible to repair the bottom plate or foundation of the post installation location or the lower part of the floating roof.
図5及び図6に例示する従来の浮屋根式貯槽の工事施工法は、底板取替部2aを施工する際に、この底板取替部2aに位置する浮屋根の支柱、つまりデッキサポート3を一次的に取外し撤去し、さらに仮支持材100Aを設置するために、浮屋根デッキ1を支持する仮支持装置100の設置が大変であった。
つまり、デッキサポート3を取外すためには、デッキサポート3上部に位置するスリーブ管5のピン6を引抜く必要があり、仮支持装置100のジャッキ101でサポート102を介してデッキ1を少し浮き上がる程度に押上げなければピン6を引き抜くことができない。
この際に、ジャッキフランジ101Fとサポートフランジ102Fとの接続が難しく取付けの段取りが大変であった。また、一つ一つ仮支持装置100を組立てセットするため、ジャッキが利き始めるまでの間は不安定であり、ジャッキ101とサポート102を垂直に保持して荷重を支えるのが難しく危険であった。
The construction method of the conventional floating roof type storage tank illustrated in FIG. 5 and FIG. 6 is that when the bottom plate replacement portion 2a is constructed, the floating roof column, that is, the deck support 3 located in the bottom plate replacement portion 2a is used. The temporary support device 100 that supports the floating roof deck 1 has been difficult to install in order to temporarily remove and remove the temporary support material 100A.
That is, in order to remove the deck support 3, it is necessary to pull out the pin 6 of the sleeve tube 5 located at the upper portion of the deck support 3, and the deck 1 is lifted slightly through the support 102 by the jack 101 of the temporary support device 100. The pin 6 cannot be pulled out without being pushed up.
At this time, it was difficult to connect the jack flange 101F and the support flange 102F, and it was difficult to set up the mounting. Moreover, since the temporary support devices 100 are assembled and set one by one, it is unstable until the jack starts to work, and it is difficult and dangerous to hold the jack 101 and the support 102 vertically to support the load. .
この油圧のジャッキ101や調整管のサポート102等よりなる仮支持装置100は、重量もあるため持ち運びも大変で、浮屋根デッキ下面天井の高さが低く狭い作業空間内を、所定の場所まで一つずつ運びセットする段取りの作業が大変であった。
殊に、浮屋根がダブルデッキの場合には屋根の重量が大きいため、浮屋根支柱一本当たり周囲の複数箇所に仮支持装置100をセットするか、或いは大型で重量の大きい強力な仮支持装置100を使用する必要が生じ、設置の作業性が良く簡便な支持装置が望まれていた。
The temporary support device 100 including the hydraulic jack 101, the adjustment pipe support 102, and the like is heavy and difficult to carry, and the height of the ceiling on the bottom surface of the floating roof deck is low. The setup work to carry and set one by one was difficult.
In particular, when the floating roof is a double deck, the weight of the roof is large. Therefore, the temporary support device 100 is set at a plurality of locations around the floating roof column, or a large and strong temporary support device having a large weight. It is necessary to use 100, and a simple and easy-to-install support device is desired.
この発明は、前述の従来工法における問題点を解決するためになされたもので、簡便で設置の作業性が良い貯槽用ジャッキ装置と、このジャッキ装置を使用して天井が低く狭くて暗い作業空間内で底板や基礎、或いは浮屋根の修復作業を安全かつ作業性良く行うことができる浮屋根式貯槽の工事施工法を提供することにある。   The present invention was made in order to solve the problems in the above-described conventional method, and is a simple and easy-to-install storage tank jack device, and a low, narrow and dark work space using this jack device. It is an object of the present invention to provide a construction method for a floating roof type storage tank capable of safely and efficiently performing repair work on a bottom plate, a foundation, or a floating roof.
請求項1の発明に係る貯槽用ジャッキ装置は、下端に支持板7Aを有する支持台と、この支持台の上部に取付ける外筒と、この外筒内に設置するジャッキ10と、このジャッキ10の上部に取付け上記外筒内をスライドして上下動する長さを変えて差替え構造の内筒とでジャッキ装置11を形成し、このジャッキ装置11の1台又は複数台は、接続材15で移送台車12に取付け、該移送台車12の車輪13はジャッキ装置11が起立状態の時は浮屋根式貯槽の底板2から浮き上がり、ジャッキ装置11の搬送時には移送台車12の把持部14を押し下げて車輪13を底板2に接地させると、ジャッキ装置11は傾斜して支持板7Aが底板から浮き上がり、移送台車12にはジャッキ装置11のジャッキ10を昇降させる油圧機16と該油圧機16を操作するレバー17を備えていることを特徴とする。
The tank jack device according to the invention of claim 1 includes a support base 7 having a support plate 7A at the lower end , an outer cylinder 8 attached to the upper part of the support base 7 , a jack 10 installed in the outer cylinder 8 , The jack device 11 is formed with the inner tube 9 having a replacement structure by changing the length of the outer tube 8 that is attached to the upper portion of the jack 10 and sliding up and down and moving up and down , and one or more of the jack devices 11 are The wheel 13 of the transfer carriage 12 is lifted from the bottom plate 2 of the floating roof type storage tank when the jack apparatus 11 is in the standing state, and the gripping portion of the transfer carriage 12 is conveyed when the jack apparatus 11 is conveyed. When the wheel 14 is brought into contact with the bottom plate 2 by depressing 14, the jack device 11 is inclined and the support plate 7 </ b> A is lifted from the bottom plate, and the hydraulic vehicle for raising and lowering the jack 10 of the jack device 11 on the transfer carriage 12. Characterized in that it comprises a 6 and a lever 17 for operating the hydraulic motor 16.
請求項2記載の浮屋根式貯槽の工事施工法は、請求項1記載の移送台車12に取付けた貯槽用ジャッキ装置11使用する浮屋根式貯槽の工事施工法であって、把持部14を押し下げて底板2に車輪13を接触させるとジャッキ装置11は傾斜し、支持台7の支持板7Aが底板2から浮き上がる状態で移動させ浮屋根下部の所定位置まで移動させ、移送台車12の把持部14を上側に押してジャッキ装置11を起立状態に起こすと支持板7Aが底板2に設置され、車輪13は底板2から離陸し、移送台車12に搭載した油圧機16のレバー17を操作してジャッキ10を稼動させて、浮屋根デッキ1を浮かせる程度に押し上げ、デッキサポート3上部のピン6を抜いて、デッキサポート3を上方に引き抜き、次いで、このジャッキ装置11で浮屋根デッキ1の荷重を支持した状態で、下方に位置する底板2や基礎の修復を行い、移送台車12でジャッキ装置11を次の底板取替箇所へ順次移動し、底板や基礎、或いは浮屋根デッキ1の取替えや修復などの工事施工をすることを特徴とする。
Construction and installation method of the floating roof tank according to claim 2, there is provided a construction method of applying Floating roof storage tank that uses the reservoir jack device 11 attached to the movable carriage 12 of claim 1 Symbol placement, the grip portion 14 When the wheel 13 is brought into contact with the bottom plate 2 by pushing down, the jack device 11 is tilted, moved in a state where the support plate 7A of the support base 7 is lifted from the bottom plate 2, moved to a predetermined position below the floating roof 1 , and the transfer carriage 12 When the gripping portion 14 is pushed upward to raise the jack device 11 to the upright state, the support plate 7A is installed on the bottom plate 2, the wheel 13 takes off from the bottom plate 2, and the lever 17 of the hydraulic machine 16 mounted on the transfer carriage 12 is operated. by operating the jack 10 Te, pushed to the extent that floating the floating roof deck 1, remove the deck support 3 upper part of the pin 6, pull the deck support 3 upward, then the jack device 11 While supporting the load of the floating roof deck 1, to repair a bottom plate 2 and foundation located below, the jack device 11 in the movable carriage 12 sequentially moves to the next bottom plate replacement position, the bottom plate 2 and basic, or It is characterized by construction work such as replacement and restoration of the floating roof deck 1 .
請求項1の発明に係る貯槽用ジャッキ装置は、下端に支持板7Aを有する支持台と、この支持台の上部に取付ける外筒と、この外筒内に設置するジャッキ10と、このジャッキ10の上部に取付け上記外筒内をスライドして上下動する長さを変えて差替え構造の内筒とでジャッキ装置11を形成し、このジャッキ装置11の1台又は複数台は、接続材15で移送台車12に取付け、該移送台車12の車輪13はジャッキ装置11が起立状態の時は浮屋根式貯槽の底板2から浮き上がり、ジャッキ装置11の搬送時には移送台車12の把持部14を押し下げて車輪13を底板2に接地させると、ジャッキ装置11は傾斜して支持板7Aが底板から浮き上がり、移送台車12にはジャッキ装置11のジャッキ10を昇降させる油圧機16と該油圧機16を操作するレバー17を備えているので、
スライド構造の内外筒体状の調整管とジャッキを一体とすることで、組立解体が容易で天井が低く狭くて暗い作業空間内への搬入や設置作業がやり易く、差替構造の内筒を差替変更することによって高さ調整が素早く出来、セット時に安定性が良く安全性が向上し、ジャッキ装置11は支持台7と外筒8とジャッキ10と内筒9とが一体化され、外筒8の内部にジャッキ10が固定され、かつこのジャッキ10上端縁に載置された内筒9が外筒8にガイドされているため、ジャッキが利き始めるまで安定し垂直に保持するのが容易かつ安全である。
また、内筒9は長さを変えて差替えが出来る構造にしたので、ジャッキ10の上下ストロークの範囲を超える上下高さに対応できるため、底板2が外周近傍では低く中心近傍では高くなっていて浮屋根下面との距離が異なる場合などに、外周近傍用には長い内筒9aを用意し、中心近傍用には短い内筒9bを用意しておくと、上記ジャッキ10の上下ストロークの範囲を超える上下高さの変化に対応して差替えて使用することができる。
また、上記ジャッキ装置の単数又は複数台を、油圧機16とレバー17を載置し設置時に車輪13が把持部14を押して離陸させる移送台車12に、接続材15で取付け形成したので、底板2に車輪13を接触させて移送台車12を移動して浮屋根1下部の所定位置に設置し、把持部14を押してジャッキ装置11を起こし、車輪13を離陸させ支持台7の支持板7Aを確りと面接触させて底板2上に設置し、油圧機16のレバー17を操作してジャッキ10を稼動させるため、移送台車12に取付けたジャッキ装置11は重量が大であっても、浮屋根デッキ下面天井の高さが低く狭い作業空間内を所定の場所まで楽に移送することができ、セットする作業も簡単に行なうことができる。
The tank jack device according to the invention of claim 1 includes a support base 7 having a support plate 7A at the lower end , an outer cylinder 8 attached to the upper part of the support base 7 , a jack 10 installed in the outer cylinder 8 , The jack device 11 is formed with the inner tube 9 having a replacement structure by changing the length of the outer tube 8 that is attached to the upper portion of the jack 10 and sliding up and down and moving up and down , and one or more of the jack devices 11 are The wheel 13 of the transfer carriage 12 is lifted from the bottom plate 2 of the floating roof type storage tank when the jack apparatus 11 is in the standing state, and the gripping portion of the transfer carriage 12 is conveyed when the jack apparatus 11 is conveyed. When the wheel 14 is brought into contact with the bottom plate 2 by depressing 14, the jack device 11 is inclined and the support plate 7 </ b> A is lifted from the bottom plate, and the hydraulic vehicle for raising and lowering the jack 10 of the jack device 11 on the transfer carriage 12. Is provided with the lever 17 for operating the 6 and the hydraulic motor 16,
By the inner and outer tubular body shaped adjusting tube and the jack of the slide structure and integral, facilitate the carrying and installation work to ceilings easy to assemble disassembly lower narrower dark working space, the inner cylinder of the replacement structure By changing the height, the height can be adjusted quickly, stability is improved when set, and the safety is improved. The jack unit 11 is composed of the support base 7, the outer cylinder 8, the jack 10, and the inner cylinder 9. Since the jack 10 is fixed inside the cylinder 8 and the inner cylinder 9 placed on the upper edge of the jack 10 is guided by the outer cylinder 8, it is easy to hold the jack stably and vertically until the jack starts to work. And safe.
In addition, since the inner cylinder 9 has a structure that can be replaced by changing the length, it can cope with the vertical height exceeding the range of the vertical stroke of the jack 10, so that the bottom plate 2 is low near the outer periphery and high near the center. When the distance from the lower surface of the floating roof is different, for example, a long inner cylinder 9a is prepared for the vicinity of the outer periphery and a short inner cylinder 9b is prepared for the vicinity of the center. It can be replaced and used in response to the change in the vertical height exceeding.
Moreover, one or a plurality of the jack device, the movable carriage 12 the wheel 13 during installation to place the hydraulic motor 16 and the lever 17 makes takeoff press the grip portion 14, since the formed attached by connecting member 15, the bottom plate 2 is brought into contact with the wheel 13 to move the transfer carriage 12 to be installed at a predetermined position below the floating roof 1, the gripping portion 14 is pushed to raise the jack device 11, the wheel 13 is taken off and the support plate 7 </ b> A of the support base 7 is attached. Since the jack 10 is operated by operating the lever 17 of the hydraulic machine 16 so that the jack device 11 is installed on the bottom plate 2 with a firm surface contact, even if the jack device 11 attached to the transfer carriage 12 is heavy , the floating roof The height of the ceiling on the bottom of the deck is low , and it can be easily transported to a predetermined place in a narrow work space, and the setting work can be easily performed.
請求項2記載の浮屋根式貯槽の工事施工法は、請求項1記載の移送台車12に取付けた貯槽用ジャッキ装置11使用する浮屋根式貯槽の工事施工法であって、把持部14を押し下げて底板2に車輪13を接触させるとジャッキ装置11は傾斜し、支持台7の支持板7Aが底板2から浮き上がる状態で移動させ浮屋根下部の所定位置まで移動させ、移送台車12の把持部14を上側に押してジャッキ装置11を起立状態に起こすと支持板7Aが底板2に設置され、車輪13は底板2から離陸し、移送台車12に搭載した油圧機16のレバー17を操作してジャッキ10を稼動させて、浮屋根デッキ1を浮かせる程度に押し上げ、デッキサポート3上部のピン6を抜いて、デッキサポート3を上方に引き抜き、次いで、このジャッキ装置11で浮屋根デッキ1の荷重を支持した状態で、下方に位置する底板2や基礎の修復を行い、移送台車12でジャッキ装置11を次の底板取替箇所へ順次移動し、底板や基礎、或いは浮屋根デッキ1の取替えや修復などの工事施工をするので、
移送台車12に取付けたジャッキ装置11は重量が大であっても、浮屋根デッキ下面、底板と浮屋根の間の天井の高さが低く狭くて暗い作業空間内を所定の場所まで楽に移送することができ、セットする作業も簡単に行なうことができ、底板2の取替えや基礎の修復、浮屋根の補修などを作業性良く行い、工期短縮が図れるため、工事施工の経済性及び安全性が向上する。
Construction and installation method of the floating roof tank according to claim 2, there is provided a construction method of applying Floating roof storage tank that uses the reservoir jack device 11 attached to the movable carriage 12 of claim 1 Symbol placement, the grip portion 14 When the wheel 13 is brought into contact with the bottom plate 2 by pushing down, the jack device 11 is tilted, moved in a state where the support plate 7A of the support base 7 is lifted from the bottom plate 2, moved to a predetermined position below the floating roof 1 , and the transfer carriage 12 When the gripping portion 14 is pushed upward to raise the jack device 11 to the upright state, the support plate 7A is installed on the bottom plate 2, the wheel 13 takes off from the bottom plate 2, and the lever 17 of the hydraulic machine 16 mounted on the transfer carriage 12 is operated. by operating the jack 10 Te, pushed to the extent that floating the floating roof deck 1, remove the deck support 3 upper part of the pin 6, pull the deck support 3 upward, then the jack device 11 While supporting the load of the floating roof deck 1, to repair a bottom plate 2 and foundation located below, the jack device 11 in the movable carriage 12 sequentially moves to the next bottom plate replacement position, the bottom plate 2 and basic, or As construction works such as replacement and restoration of floating roof deck 1 ,
Even jack device 11 which is mounted on the movable carriage 12 is a weight large, easily transported floating roof deck lower surface, a bottom plate and a dark working space ceiling height is rather narrow lower between the floating roof to a predetermined place it is possible to, work to set can also be easily performed, repair of replacement and the foundation of the bottom plate 2, do good workability such as repair of the floating roof, in order to attained is shortening the construction period, economic efficiency and safety of construction and installation Will improve.
この発明に係る貯槽用ジャッキ装置と、このジャッキ装置を使用して浮屋根式貯槽の底板取替えや基礎修復などの工事施工を行う状況を、図1乃至図4に基づいて説明する。
図1に貯槽用のジャッキ装置11の実施形態例を示し、図2にジャッキ装置を取付けた移送台車12の実施形態例を示す。図3に移送台車12に載置したジャッキ装置を浮屋根下部の底板上に設置する状況を示す。図4は2台のジャッキ装置からなるジャッキ装置を備えた移送台車12の実施形態例を示す。
The storage tank jack apparatus according to the present invention and the situation in which construction work such as replacement of the bottom plate of the floating roof type storage tank and foundation repair is performed using this jack apparatus will be described with reference to FIGS.
FIG. 1 shows an embodiment of a storage tank jack device 11, and FIG. 2 shows an embodiment of a transfer carriage 12 to which the jack device is attached. FIG. 3 shows a situation where the jack apparatus placed on the transfer carriage 12 is installed on the bottom plate at the bottom of the floating roof. FIG. 4 shows an embodiment of a transfer carriage 12 having a jack device composed of two jack devices.
図1に示すように、貯蔵液を抜いた浮屋根式貯槽の浮屋根を支持する支柱、つまりデッキサポート3は、浮屋根1のスリーブ管5を貫通してピン6にて固定され底板2上のベースプレート4上に着地している。
2aは底板取替部で、この底板取替部2a近傍の浮屋根デッキ1の荷重を支えて、かつこの位置のデッキサポート3を取外すために、このデッキサポート3近傍の底板2上の必要箇所にジャッキ装置11を設置する。このジャッキ装置11の位置は、浮屋根デッキ1のトラス補強材の場所に合わせて浮屋根の荷重を確りと受けるようにする。
ジャッキ装置11は、ジャッキ10を安定状態に設置するための支持台7と、この支持台フランジ7Fに接続する外筒フランジ8Fを有する外筒8と、この外筒8の内部に設置し上端縁にジャッキフランジ10Fを有するジャッキ10と、このジャッキフランジ10Fの上部に載置する内筒フランジ9Fを有する差替え構造の内筒9とで一体化させ、外筒8の内部に設置したジャッキ10の作動によって内筒9がスライドして上下に動くように形成する。
なお、図示例では、支持板7Aと支持台フランジ7Fを有する円筒状の支持台7に形成したが、この支持台7は、平板材やジャッキ下部の台座などの安置性の良い部材で形成しても良い。
また、図示省略したが、外筒8の内部に2点以上をガイドするごとく内筒9に鍔を遊嵌状に設けると、内筒9が垂直にガイドされて上下動し、荷重伝達がスムーズになる。更に、内筒9の外れも防止でき安全作業に寄与する。
このように、ジャッキ装置11は支持台7と外筒8とジャッキ10と内筒9とが一体化され、外筒8の内部にジャッキ10が固定され、かつこのジャッキ10上端縁に載置された内筒9が外筒8にガイドされているため、ジャッキが利き始めるまで安定し垂直に保持するのが容易かつ安全である。
As shown in FIG. 1, the column supporting the floating roof of the floating roof type storage tank from which the stored liquid has been removed, that is, the deck support 3, passes through the sleeve pipe 5 of the floating roof 1 and is fixed by pins 6. The base plate 4 is landed.
Reference numeral 2a denotes a bottom plate replacement portion, which is necessary on the bottom plate 2 near the deck support 3 in order to support the load of the floating roof deck 1 near the bottom plate replacement portion 2a and to remove the deck support 3 at this position. The jack apparatus 11 is installed in The position of the jack device 11 is made to reliably receive the load of the floating roof according to the location of the truss reinforcement member of the floating roof deck 1.
The jack device 11 includes a support base 7 for installing the jack 10 in a stable state, an outer cylinder 8 having an outer cylinder flange 8F connected to the support base flange 7F, and an upper end edge installed inside the outer cylinder 8. The operation of the jack 10 installed inside the outer cylinder 8 is integrated with the jack 10 having the jack flange 10F and the inner cylinder 9 of the replacement structure having the inner cylinder flange 9F mounted on the upper portion of the jack flange 10F. Thus, the inner cylinder 9 is formed to slide and move up and down.
In the example shown in the figure, the cylindrical support base 7 having the support plate 7A and the support base flange 7F is formed. However, the support base 7 is formed of a member having good resting property such as a flat plate material or a base under the jack. May be.
Although not shown in the figure, when the hook is provided in the inner cylinder 9 so as to guide two or more points inside the outer cylinder 8, the inner cylinder 9 is vertically guided to move up and down, and load transmission is smooth. become. Further, the inner cylinder 9 can be prevented from coming off, which contributes to safety work.
In this manner, the jack device 11 is formed by integrating the support base 7, the outer cylinder 8, the jack 10 and the inner cylinder 9, the jack 10 is fixed inside the outer cylinder 8, and is placed on the upper edge of the jack 10. Further, since the inner cylinder 9 is guided by the outer cylinder 8, it is easy and safe to hold the jack stably and vertically until the jack starts to work.
内筒9は、長さを変えて(9a,9b,・・・など)差替えが出来る構造にして、ジャッキ10の上下ストロークの範囲を超える上下高さに対応できるように形成する。例えば、底板2が外周近傍では低く中心近傍では高くなっていて浮屋根下面との距離が異なる場合などに、外周近傍用には長い内筒9aを用意し、中心近傍用には短い内筒9bを用意しておくと、上記ジャッキ10の上下ストロークの範囲を超える上下高さの変化に対応して差替えて使用することができる。
また、内筒9の上端縁に設置する荷重分散材9Aは、広い接触面積で浮屋根の下面を平均に分散支持し、浮屋根本体を撓ませたり損傷などしないように形成する。
The inner cylinder 9 has a structure that can be replaced by changing its length (9a, 9b,..., Etc.), and is formed so as to correspond to the vertical height exceeding the range of the vertical stroke of the jack 10. For example, when the bottom plate 2 is low in the vicinity of the outer periphery and high in the vicinity of the center and the distance from the lower surface of the floating roof is different, a long inner cylinder 9a is prepared for the vicinity of the outer periphery, and a short inner cylinder 9b for the vicinity of the center. Is prepared, it can be replaced and used in response to the change in the vertical height exceeding the range of the vertical stroke of the jack 10.
The load distribution member 9A installed on the upper end edge of the inner cylinder 9 is formed so as to support the lower surface of the floating roof in an average manner with a wide contact area so as not to bend or damage the floating roof body.
ジャッキ装置11は、あらかじめ広い場所で、支持台7上の外筒8内部にジャッキ10を設置して支持台フランジ7Fと外筒フランジ8Fを接続し、外筒8内へ内筒9を差込んでジャッキフランジ10Fと内筒フランジ9Fを合致させて一体状に組立てることにより、天井が低く狭くて暗い作業空間内への搬入や設置作業がやり易く、セット時の安定性が良く安全性を確保することができる。なお、ジャッキ10は、液体駆動方式の手動の油圧式機構に限らず、空気圧力式、電動式などの機構のもの、或いはネジ方式機構のものを状況に応じて適宜採用する。   The jack device 11 has a jack 10 installed in the outer cylinder 8 on the support base 7 in advance in a wide space, connects the support base flange 7F and the outer cylinder flange 8F, and inserts the inner cylinder 9 into the outer cylinder 8. As a result, the jack flange 10F and the inner cylinder flange 9F are assembled and integrated into a single unit, so that the ceiling is low and narrow and easy to carry in and install in a dark work space, ensuring stability during setting and ensuring safety. can do. Note that the jack 10 is not limited to a liquid-driven manual hydraulic mechanism, but an air pressure mechanism, an electric mechanism, or a screw mechanism is appropriately employed depending on the situation.
上記ジャッキ装置11の支持台7の支持板7Aを底板2上に確りと面接触させ、内筒9上端縁の荷重分散材9Aを面接触させて、浮屋根1の垂直荷重を平均に支える。
このジャッキ装置11を使用して、図1の(1)〜(3)に示すように、(1)浮屋根デッキ1を浮かせる程度に押し上げ、(2)デッキサポート3上部スリーブ管5のピン6を水平方向に抜き、(3)サポート3を上方に引き抜き、さらに必要に応じて仮支持材の設置(図示せず)の作業を行う。
次いで、このジャッキ装置11で浮屋根デッキ1の荷重を支持した状態で、下方に位置する底板取替部2aを取替施工し、必要に応じてその下部の基礎の修復を行う。
ジャッキ装置11を次の底板取替部2a箇所へ順次移設し、底板2の取替えや基礎の修復、浮屋根の補修などを行う。
The support plate 7A of the support base 7 of the jack device 11 is brought into surface contact with the bottom plate 2 with certainty, and the load dispersing member 9A at the upper edge of the inner cylinder 9 is brought into surface contact to support the vertical load of the floating roof 1 on average.
Using this jack device 11, as shown in (1) to (3) of FIG. 1, (1) push up the floating roof deck 1 so that it floats, and (2) the pin 6 of the deck support 3 upper sleeve tube 5 Is pulled out horizontally, (3) the support 3 is pulled upward, and further, the work of installing a temporary support material (not shown) is performed as necessary.
Next, in a state where the load of the floating roof deck 1 is supported by the jack device 11, the bottom plate replacement part 2a located below is replaced, and the foundation of the lower part is repaired as necessary.
The jack apparatus 11 is sequentially moved to the next bottom plate replacement part 2a, and the bottom plate 2 is replaced, the foundation is repaired, and the floating roof is repaired.
図2は、この発明に係る貯槽用のジャッキ装置11を取付けた移送台車12の実施形態例で、工事施工を行う浮屋根下部の底板上に設置した状態を示す側面説明図である。
移送台車12は、例えば2輪の車輪13と把持部14とを有し、接続材15でジャッキ装置を取付け、さらに台車荷台12Aの上に油圧機16、レバー17などを載置して形成する。
移送台車12でジャッキ装置11を移送して設置した後に、図1と同様に、支持台7、外筒8、内筒9、ジャッキ10からなるジャッキ装置11を使用して、図2の(1)〜(3)に示すように、(1)浮屋根1の押し上げ、(2)ピン6抜き、(3)サポート3の引抜き、さらに必要に応じて仮支持材の設置(図示せず)の作業を行う。
移送台車12でジャッキ装置11を次の底板取替部2a箇所へ順次移動し、底板2の取替えや基礎の修復、浮屋根の補修などの工事施工を作業性良く行う。
FIG. 2 is a side explanatory view showing a state in which the transfer truck 12 is mounted with the storage tank jack device 11 according to the present invention and is installed on the bottom plate of the lower part of the floating roof to be constructed.
The transfer carriage 12 has, for example, two wheels 13 and a gripping portion 14, and is formed by attaching a jack device with a connecting member 15 and further placing a hydraulic machine 16, a lever 17 and the like on the carriage carriage 12 </ b> A. .
After the jack apparatus 11 is transferred and installed by the transfer carriage 12, the jack apparatus 11 including the support base 7, the outer cylinder 8, the inner cylinder 9, and the jack 10 is used as shown in FIG. As shown in (3) to (3), (1) Pushing up the floating roof 1, (2) Pulling out the pin 6, (3) Pulling out the support 3, and if necessary, installing a temporary support (not shown) Do work.
The jacking device 11 is sequentially moved to the next bottom plate replacement portion 2a by the transfer carriage 12, and the construction work such as replacement of the bottom plate 2, repair of the foundation, repair of the floating roof is performed with good workability.
図3は、図2に示すジャッキ装置11を取付けた移送台車12を、浮屋根1の下部の底板2の上を移動して設置する状況を示す側面説明図である。
浮屋根1と底板2の空間内の所定箇所に、次の(1)〜(3)に示すようにジャッキ装置11を備えた移送台車12を移動してジャッキ装置11を設置して使用する。
(1)底板2に車輪13を接触させて移送台車12を移動する。
(2)把持部14を押してジャッキ装置11を起こし、車輪13を離陸させ、支持板7Aを底板2上に面接触させて設置する。
(3)油圧機16のレバー17を操作してジャッキ10を稼動する。
このように、移送台車12に取付けたジャッキ装置11は重量が大であっても、浮屋根デッキ下面天井の高さが低く狭い作業空間内を所定の場所まで楽に移送することができ、セットする作業も簡単に行なうことができる。また、必要に応じて移送台車12に照明を設置しておけば(図示せず)、暗い作業場所でも安全に能率良く作業をすることができる。
FIG. 3 is an explanatory side view showing a situation where the transfer carriage 12 to which the jack device 11 shown in FIG. 2 is attached is moved and installed on the bottom plate 2 below the floating roof 1.
As shown in the following (1) to (3), the transfer carriage 12 provided with the jack device 11 is moved to a predetermined location in the space between the floating roof 1 and the bottom plate 2 to install and use the jack device 11.
(1) The wheel 13 is brought into contact with the bottom plate 2 and the transfer carriage 12 is moved.
(2) Push the gripping portion 14 to raise the jack device 11, take off the wheel 13, and place the support plate 7A on the bottom plate 2 in surface contact.
(3) The lever 10 of the hydraulic machine 16 is operated to operate the jack 10.
In this way, even if the jack device 11 attached to the transfer carriage 12 is heavy, the height of the ceiling on the bottom surface of the floating roof deck is low and it can be easily transferred to a predetermined place in a narrow work space and set. Work can be done easily. Further, if lighting is installed on the transfer carriage 12 as necessary (not shown), the work can be performed safely and efficiently even in a dark work place.
図4は、2台のジャッキ装置11を移送台車12に取付けた実施形態例を示す斜視説明図である。
支持台7、外筒8、内筒9、ジャッキ10からなる2台のジャッキ装置11を、共通の支持台プレート18の上に立設して移送台車12に取付ける。
この2台のジャッキ装置11の上端部に荷重分散材9Bを設置する。
この荷重分散材9Bは、例えば井桁状に枠組みした広い面積の部材で、平均に浮屋根の荷重を支持することができるように形成する。つまり、浮屋根デッキ1が撓むことなく荷重を平均に支えることができるため、浮屋根デッキ1の水平確保、撓みの修正、肌合わせ修復などの施工がやり易くなる。
移送台車12に2台取付けたジャッキ装置11は、浮屋根デッキ1の重量が大きいダブルデッキなどの場合に、ジャッキ装置11の設置作業を能率良く行うことができ、重いダブルデッキ構造の浮屋根を平均に楽に支持することができる。なお、必要に応じて2台以上の複数台のジャッキ装置11を取付けることも可能である。
FIG. 4 is a perspective explanatory view showing an embodiment in which two jack apparatuses 11 are attached to the transfer carriage 12.
Two jack apparatuses 11 including a support base 7, an outer cylinder 8, an inner cylinder 9, and a jack 10 are erected on a common support base plate 18 and attached to the transfer carriage 12.
A load distribution material 9B is installed at the upper end of the two jack devices 11.
The load dispersing member 9B is a member having a wide area, for example, framed like a cross beam, and is formed so as to be able to support the load of the floating roof on average. That is, since the load can be supported on average without the floating roof deck 1 being bent, it is easy to perform construction such as securing the horizontal level of the floating roof deck 1, correcting the bending, and repairing the skin.
The two jack devices 11 attached to the transfer carriage 12 can efficiently install the jack device 11 when the floating roof deck 1 is heavy, such as a double deck. Can be supported easily on average. In addition, it is also possible to attach two or more jack devices 11 as necessary.
貯槽用ジャッキ装置は、貯槽など種々の構築物について、底板や基礎の取替えや修復、或いはデッキの取替えや修復、ルーフドレン等付属設備の修理などを行う時のジャッキ装置として広く適用することができる。
The storage tank jack apparatus can be widely applied as a jack apparatus for various structures such as storage tanks when replacing or repairing a bottom plate or a foundation, replacing or repairing a deck, or repairing attached equipment such as a roof drain.
この発明に係る貯槽用ジャッキ装置の実施形態例で、工事施工を行う浮屋根下部の底板上に設置した状態を示す側面説明図である。It is side surface explanatory drawing which shows the state installed in the embodiment example of the jack apparatus for storage tanks concerning this invention on the bottom plate of the floating roof lower part which performs construction construction. この発明に係る貯槽用ジャッキ装置を移送台車に取付けた実施形態例で、工事施工を行う浮屋根下部の底板上に設置した状態を示す側面説明図である。It is side surface explanatory drawing which shows the state installed in the example of embodiment which attached the jack apparatus for storage tanks concerning this invention to the transfer trolley | bogie on the bottom plate of the floating roof lower part which performs construction construction. 図2に示すジャッキ装置を取付けた移送台車を、工事施工を行う浮屋根下部の底板上に設置する状況を示す側面説明図である。It is side surface explanatory drawing which shows the condition which installs the transfer trolley | bogie which attached the jack apparatus shown in FIG. 2 on the bottom plate of the floating roof lower part which performs construction construction. 2台のジャッキ装置を備えた移送台車の実施形態例を示す斜視説明図である。It is an isometric view explanatory drawing which shows the example of embodiment of the transfer trolley | bogie provided with the two jack apparatuses. 従来例で、浮屋根式貯槽の底板取替えや基礎修復などの工事施工を行う状況を示す平面説明図である。It is a plane explanatory view which shows the condition which performs construction construction, such as baseplate replacement | exchange of a floating roof type storage tank, and foundation restoration in a prior art example. 図5の部分を示す側面図で、浮屋根のデッキサポートと従来の仮支持装置を示す説明図である。It is a side view which shows the part of FIG. 5, and is explanatory drawing which shows the deck support of a floating roof, and the conventional temporary support apparatus.
符号の説明Explanation of symbols
1浮屋根デッキ
2底板
2a底板取替部
3デッキサポート
4ベースプレート
5スリーブ管
6ピン
7支持台
7A支持板
7F支持台フランジ
8外筒
8F外筒フランジ
9,9a,9b内筒
9F内筒フランジ
9A荷重分散材
9B荷重分散材
10ジャッキ
10Fジャッキフランジ
11ジャッキ装置
12移送台車
13車輪
14把持部
15接続材
16油圧機
17レバー
18支持台プレート

100仮支持装置
100A仮支持材
101ジャッキ
101Fジャッキフランジ
102サポート
102Fサポートフランジ
1 floating roof deck
2 bottom plate
2a bottom plate replacement part 3 deck support
4 base plate
5 sleeve tube
6 pin
7 support stand
7A support plate
7F support base flange 8 outer cylinder
8F outer cylinder flange 9, 9a, 9b inner cylinder
9F inner cylinder flange
9A load dispersion material
9B load dispersion material
10 jacks
10F jack flange
11 Jack device
12 transfer cart
13 wheels
14 gripping part
15 connecting materials
16 hydraulic machine
17 levers
18 support plate

100 temporary support device
100A temporary support material
101 jack
101F jack flange
102 support
102F support flange

Claims (2)

  1. 下端に支持板7Aを有する支持台と、この支持台の上部に取付ける外筒と、この外筒内に設置するジャッキ10と、このジャッキ10の上部に取付け上記外筒内をスライドして上下動する長さを変えて差替え構造の内筒とでジャッキ装置11を形成し、このジャッキ装置11の1台又は複数台は、接続材15で移送台車12に取付け、該移送台車12の車輪13はジャッキ装置11が起立状態の時は浮屋根式貯槽の底板2から浮き上がり、ジャッキ装置11の搬送時には移送台車12の把持部14を押し下げて車輪13を底板2に接地させると、ジャッキ装置11は傾斜して支持板7Aが底板から浮き上がり、移送台車12にはジャッキ装置11のジャッキ10を昇降させる油圧機16と該油圧機16を操作するレバー17を備えていることを特徴とする貯槽用ジャッキ装置。
    A support base 7 having a support plate 7A at the lower end, the outer tube 8 attached to the upper portion of the support base 7, the jack 10 is placed in the outer tube 8, the mounting the outer cylinder 8 at the top of the jack 10 The jack device 11 is formed with the inner cylinder 9 having a replacement structure by changing the length of sliding and moving up and down, and one or a plurality of the jack devices 11 are attached to the transfer carriage 12 by the connecting material 15 and the transfer is performed. The wheel 13 of the carriage 12 is lifted from the bottom plate 2 of the floating roof type storage tank when the jack device 11 is standing, and when the jack device 11 is transported, the gripping portion 14 of the transfer carriage 12 is pushed down to ground the wheel 13 to the bottom plate 2. The jack device 11 is inclined and the support plate 7A is lifted from the bottom plate, and the transfer carriage 12 is provided with a hydraulic machine 16 for raising and lowering the jack 10 of the jack apparatus 11 and a lever 17 for operating the hydraulic machine 16. And reservoir jacks and wherein the are.
  2. 請求項1記載の移送台車12に取付けた貯槽用ジャッキ装置11使用する浮屋根式貯槽の工事施工法であって、把持部14を押し下げて底板2に車輪13を接触させるとジャッキ装置11は傾斜し、支持台7の支持板7Aが底板2から浮き上がる状態で移動させ浮屋根下部の所定位置まで移動させ、移送台車12の把持部14を上側に押してジャッキ装置11を起立状態に起こすと支持板7Aが底板2に設置され、車輪13は底板2から離陸し、移送台車12に搭載した油圧機16のレバー17を操作してジャッキ10を稼動させて、浮屋根デッキ1を浮かせる程度に押し上げ、デッキサポート3上部のピン6を抜いて、デッキサポート3を上方に引き抜き、次いで、このジャッキ装置11で浮屋根デッキ1の荷重を支持した状態で、下方に位置する底板2や基礎の修復を行い、移送台車12でジャッキ装置11を次の底板取替箇所へ順次移動し、底板や基礎、或いは浮屋根デッキ1の取替えや修復などの工事施工をすることを特徴とする浮屋根式貯槽の工事施工法。
    A construction method of applying Floating roof storage tank that uses the reservoir jack device 11 attached to the movable carriage 12 of claim 1 Symbol placement, the bottom plate 2 by pressing down the grip portion 14 is brought into contact with the wheel 13 jack device 11 Is tilted, moved in a state where the support plate 7A of the support base 7 is lifted from the bottom plate 2, moved to a predetermined position below the floating roof 1, and pushes the gripping portion 14 of the transfer carriage 12 upward to raise the jack device 11 upright. And the support plate 7A are installed on the bottom plate 2, the wheels 13 take off from the bottom plate 2, and the jack 10 is operated by operating the lever 17 of the hydraulic machine 16 mounted on the transfer carriage 12 to float the floating roof deck 1. the push-up, remove the deck support 3 upper part of the pin 6, pull the deck support 3 upwards, then in a state of supporting the load of the floating roof deck 1 in the jack device 11, under Perform bottom plate 2 and basic repairing located, the jack device 11 in the movable carriage 12 sequentially moves to the next bottom plate replacement position, the construction and installation of such bottom plate 2 and basic, or replacement and repair floating roof deck 1 A construction method for floating roof storage tanks.
JP2008305134A 2008-11-28 2008-11-28 Construction method of storage tank jack and floating roof storage tank Active JP5419003B2 (en)

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CN111891573B (en) * 2020-09-29 2021-02-23 上原石化设备(常州)有限公司 Storage tank floating roof

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JPH08192997A (en) * 1995-01-18 1996-07-30 Chinshu Boku Auxiliary equipment of hydraulic jack
JP4358818B2 (en) * 2005-12-08 2009-11-04 清三 伊藤 Jack stand device

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