JPH037351Y2 - - Google Patents
Info
- Publication number
- JPH037351Y2 JPH037351Y2 JP1985072247U JP7224785U JPH037351Y2 JP H037351 Y2 JPH037351 Y2 JP H037351Y2 JP 1985072247 U JP1985072247 U JP 1985072247U JP 7224785 U JP7224785 U JP 7224785U JP H037351 Y2 JPH037351 Y2 JP H037351Y2
- Authority
- JP
- Japan
- Prior art keywords
- seal
- floating roof
- guide shoe
- tank
- side wall
- 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.)
- Expired
Links
- 238000007667 floating Methods 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 6
- 239000005060 rubber Substances 0.000 claims description 6
- 239000003921 oil Substances 0.000 description 18
- 239000010779 crude oil Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は、原油等の油を貯蔵する浮屋根式油タ
ンクにおける、タンクの側壁と浮屋根の外縁部と
の間をシールするシール装置に関するものであ
る。[Detailed description of the invention] [Field of industrial application] The present invention relates to a sealing device for sealing between the side wall of the tank and the outer edge of the floating roof in a floating roof oil tank for storing oil such as crude oil. It is something.
原油等の油を貯蔵する浮屋根式油タンクから蒸
発するガスの、漏洩による危険等から防止するた
め、浮屋根の外縁部とタンクの側壁内面との間に
シール装置が用いられている。従来のシール装置
を第２図に示す。
In order to prevent the risk of leakage of gas evaporating from a floating roof type oil tank that stores oil such as crude oil, a sealing device is used between the outer edge of the floating roof and the inner surface of the side wall of the tank. A conventional sealing device is shown in FIG.
ガイドシユー部３を構成するガイドシユー３ａ
は、略長方形の形状をしており、タンクの側壁内
面１は円周方向に互いに密接して配置され、リン
ク装置４により浮屋根２の上下動に連動し、か
つ、タンクの側壁内面１に摺動可能に押しつけら
れている。 Guide shoe 3a forming guide shoe section 3
have a substantially rectangular shape, and the inner surface 1 of the side wall of the tank is arranged closely to each other in the circumferential direction, and is linked to the vertical movement of the floating roof 2 by a link device 4. Slidably pressed.
リンク装置４は、ガイドシユー部用リンク４ａ
とウエイト用Ｌ字状リンク４ｂとから構成され
る。ガイドシユー部用リンク４ａは、ガイドシユ
ー３ａの所要個所に固着され、上下端にストツパ
ーを、側部に案内溝を有するガイドブラケツト４
ｃに、上下動可能に嵌着されるガイドブロツク４
ｅに、一端が回動可能に枢支され、他端は浮屋根
２の外縁下部に固着され、上端にストツパーを、
側部に案内面を有するＵ字状ブラケト４ｄに、上
下動可能に係合する軸に支持されている。 The link device 4 includes a guide shoe section link 4a.
and a weight L-shaped link 4b. The guide shoe link 4a is fixed to the guide shoe 3a at a predetermined location, and is a guide bracket 4 having stoppers at the upper and lower ends and guide grooves at the sides.
A guide block 4 is fitted to c so that it can move up and down.
e, one end is rotatably supported, the other end is fixed to the lower outer edge of the floating roof 2, and a stopper is attached to the upper end.
It is supported by a shaft that is vertically movably engaged with a U-shaped bracket 4d that has a guide surface on the side.
ウエイト用Ｌ字状リンク４ｂは、一端が浮屋根
２の外縁上部に固着されたブラケツト４ｆに回転
自在に枢支され、他端にウエイトを有し、所要個
所でガイドシユー部用リンク４ａに回転自在に枢
着されている。 The L-shaped link 4b for the weight is rotatably supported at one end by a bracket 4f fixed to the upper outer edge of the floating roof 2, has a weight at the other end, and is rotatably connected to the link 4a for the guide shoe section at a required location. It is pivoted to.
リンク装置４に上方に位置し、短冊状の形状を
した一次シール５は、一端が浮屋根２に、他端が
ガイドシユー３ａに固定され、ガイドシユー部３
と浮屋根２との空隙をシールするように、互いに
タンクの円周方向で密接し、Ｕ字状に配設されて
いる。一次シール５の上方には、一次シール５の
損傷によるガスの漏洩を、また、ガイドシユー３
ａと側壁内面１との間よりのガスの漏洩を防止す
るために、短冊状の形状をし互いにタンクの円周
方向に密接した二次シール６がタンク側壁内面に
対し上向きに鋭角に接触するように配設されてお
り、下部には、二次シール６を中間で支承するブ
ラケツト３ｂが配置されている。 A primary seal 5 located above the link device 4 and having a rectangular shape has one end fixed to the floating roof 2 and the other end fixed to the guide shoe 3a.
and the floating roof 2 are closely spaced in the circumferential direction of the tank and arranged in a U-shape so as to seal the gap between the tank and the floating roof 2. A guide shoe 3 is placed above the primary seal 5 to prevent gas leakage due to damage to the primary seal 5.
In order to prevent gas leakage between the tank a and the inner surface of the side wall 1, secondary seals 6 having a rectangular shape and close to each other in the circumferential direction of the tank contact the inner surface of the tank side wall upward at an acute angle. A bracket 3b for supporting the secondary seal 6 in the middle is disposed at the bottom.
（考案が解決しようとする問題点）
ところが、浮屋根式油タンクに取付けられる一
次シール５および二次シール６には、貯蔵されて
いる油７から蒸発するガスにより、体積変化した
り、強度等の特性が変化したりしないような素材
を使用する必要があり、特に高濃度のアロマチツ
クスを含有する油等に対しては、NBRやCR等の
安価なゴムを使用することができず、耐アロマチ
ツク性が高い弗素ゴムを使用しているので、非常
に高価になる問題点と二次シールによりタンク側
壁内面に付着した原油等をかき落すことが困難で
あるという問題点があつた。(Problem to be solved by the invention) However, the primary seal 5 and the secondary seal 6 attached to the floating roof type oil tank are subject to changes in volume and strength etc. due to gas evaporating from the stored oil 7. It is necessary to use a material that does not change the properties of the rubber, and it is not possible to use inexpensive rubbers such as NBR or CR, especially for oils that contain high concentrations of aromatics. Since fluororubber with high properties is used, there are problems in that it is very expensive and that it is difficult to scrape off crude oil etc. that adhere to the inner surface of the tank side wall due to the secondary seal.
本考案は、従来技術のかかる問題点を有効に解
決すべく創案されたもので、一次シールの上部に
配設した二次シールは、一次シールの損傷時、ガ
スの漏洩を防止し、かつ、タンク側壁内面に付着
した原油等を容易にかき落すことを目的とし、耐
久性を殆んど必要としない点に着目して、安価で
原油等のかき落しが容易な二次シールの方法を採
用した浮屋根式油タンクのシール装置を提供とす
ることを目的とする。
The present invention was devised to effectively solve the problems of the prior art, and the secondary seal disposed above the primary seal prevents gas leakage when the primary seal is damaged, and The purpose is to easily scrape off crude oil, etc. adhering to the inner surface of the tank side wall, and we have adopted a secondary sealing method that is inexpensive and easy to scrape off crude oil, etc., focusing on the fact that there is almost no need for durability. The purpose of the present invention is to provide a sealing device for a floating roof type oil tank.
上記目的を達成するため、本考案の浮屋根式油
タンクのシール装置は、円筒形タンクの側壁内面
に摺接し、互いに密接するガイドシユー部と、該
ガイドシユー部を浮屋根の上下動に連動し、か
つ、側壁内面に押し付けるように係合するリンク
装置と、一端がガイドシユー部の内面に、他端が
前記浮屋根の外周面に固着され、前記リンク装置
の上部に位置し互いに密接するＵ字状の一次シー
ルと、該一次シールの上部に配設される二次シー
ルとよりなる浮屋根式油タンクのシール装置にお
いて、一端が浮屋根の外縁部に、他端がガイドシ
ユー部の上端部に固着されたカバーシールと、一
端が前記ガイドシユー部の上端部に、他端がタン
クの側壁内面に対し略直角となるように摺接する
比較的短く、かつ、内面の付着物をかき落すのに
必要な程度の剛性をもつたワイパーシールとによ
り二次シールを構成し、該ワイパーシールと前記
一次シールのみを耐油ゴム製としたことを特徴と
するものである。
In order to achieve the above object, the sealing device for a floating roof oil tank of the present invention includes a guide shoe part that slides on the inner surface of the side wall of a cylindrical tank and is in close contact with each other, and a guide shoe part that is linked to the vertical movement of the floating roof, and a link device that presses against the inner surface of the side wall, and a U-shaped member having one end fixed to the inner surface of the guide shoe portion and the other end fixed to the outer circumferential surface of the floating roof, located above the link device and in close contact with each other. A sealing device for a floating roof oil tank consisting of a primary seal and a secondary seal disposed above the primary seal, with one end fixed to the outer edge of the floating roof and the other end fixed to the upper end of the guide shoe part. The cover seal is relatively short and has one end slidingly in contact with the upper end of the guide shoe part and the other end approximately perpendicular to the inner surface of the side wall of the tank, and is necessary for scraping off deposits on the inner surface. A secondary seal is constituted by a wiper seal having a certain degree of rigidity, and only the wiper seal and the primary seal are made of oil-resistant rubber.
以下、図面に基づいて本考案の一実施例につい
て説明する。
An embodiment of the present invention will be described below based on the drawings.
第１図は本考案の浮屋根式油タンクのシール装
置の断面図である。なお、本考案の浮屋根式油タ
ンクのシール装置は、第２図に示した従来の浮屋
根式油タンクのシール装置を改良したものであ
り、共通する部分については同じ符号を用いてお
り説明を省略する。 FIG. 1 is a sectional view of a sealing device for a floating roof oil tank according to the present invention. The sealing device for a floating roof oil tank of the present invention is an improved version of the conventional sealing device for a floating roof oil tank shown in Fig. 2, and the same reference numerals are used for common parts. omitted.
ガイドシユー部３と浮屋根２との間に取付けら
れた耐油ゴム製の一次シール５の上部に配設され
た二次シール８は、一端がガイドシユー３ａに固
定されたブラケツト３ｂの上端に、他端が浮屋根
２の上部に取付けられた、ガスを透過しないでか
つ可撓性を有する安価な樹脂製（例えばビニー
ル）のカバーシール８ａと、ブラケツト３ｂの上
端に一端が取付けられ、他端がタンクの側壁内面
１に対し略直角となるように摺接する比較的短
く、かつ、内面の付着物をかき落すのに必要な程
度の剛性をもつた耐油ゴム製のワイパーシール８
ｂより構成される。一次シール５の損傷により漏
洩するガスは、カバーシール８ａにより外部への
漏洩が防止されるし、ガイドシユー３ａと側壁内
面１との間より漏洩するガスに対してはワイパー
シール８ｂにより漏洩が防止される。 A secondary seal 8 is installed above the primary seal 5 made of oil-resistant rubber installed between the guide shoe section 3 and the floating roof 2, and has one end attached to the upper end of the bracket 3b fixed to the guide shoe 3a, and the other end attached to the upper end of the bracket 3b fixed to the guide shoe 3a. is attached to the upper part of the floating roof 2, and is made of an inexpensive resin (for example, vinyl) that is gas impermeable and flexible; one end is attached to the upper end of the bracket 3b, and the other end is attached to the tank. A wiper seal 8 is made of oil-resistant rubber and is relatively short and has enough rigidity to scrape off deposits on the inner surface of the side wall 1 of the side wall.
Consists of b. Gas leaking due to damage to the primary seal 5 is prevented from leaking to the outside by the cover seal 8a, and gas leaking from between the guide shoe 3a and the side wall inner surface 1 is prevented from leaking by the wiper seal 8b. Ru.
本考案は、上記実施例に限定されるものでな
く、実用新案登録請求の範囲に含まれる以下のよ
うな変更が可能である。
The present invention is not limited to the above-mentioned embodiments, and the following modifications that fall within the scope of the utility model registration claims are possible.
前記実施例で説明したガイドシユー３ａの上端
と浮屋根２の上部との距離が短い場合は、ブラケ
ツト３ｂの代りにガイドシユー３ａを上方に延長
し、カバーシール８ａおよびワイパーシール８ｂ
の一端をガイドシユー３ａの上端に取付けること
により、ブラケツト３ｂを不要とすることができ
る。 If the distance between the upper end of the guide shoe 3a and the upper part of the floating roof 2 as described in the above embodiment is short, the guide shoe 3a is extended upward instead of the bracket 3b, and the cover seal 8a and wiper seal 8b are
By attaching one end to the upper end of the guide shoe 3a, the bracket 3b can be made unnecessary.
なお、本考案は前記実施例にのみ限定されるも
のではなく、本考案の要旨を逸脱しない限り種々
の変更を加えることは勿論である。 It should be noted that the present invention is not limited to the above embodiments, and it goes without saying that various changes may be made without departing from the gist of the present invention.
以上説明したように、本考案の浮屋根式油タン
クのシール装置によれば、次のような効果があ
る。
As explained above, the floating roof oil tank sealing device of the present invention has the following effects.
１ 二次シールをカバーシールとワイパーシール
に分割したことにより、カバーシールに安価な
材料が使用できるので、シール材の費用が減少
し浮屋根式油タンクを安価に構築できる。1. By dividing the secondary seal into a cover seal and a wiper seal, inexpensive materials can be used for the cover seal, reducing the cost of sealing materials and making it possible to construct a floating roof oil tank at low cost.
２ ワイパーシールを従来に比して短くしたの
で、ワイパーシールの摩耗や損傷に対しても、
交換費用が大巾に減少し、かつ、交換作業も簡
単に行える。2 The wiper seal has been made shorter than before, so it is less susceptible to wear and damage to the wiper seal.
Replacement costs are greatly reduced, and replacement work can be performed easily.
３ ワイパーシールを短くしたので、タンクの側
壁内面への接触力が増大し、ガスの漏洩防止効
果を大ならしめることができる。3. Since the wiper seal is shortened, the contact force against the inner surface of the side wall of the tank is increased, and the effect of preventing gas leakage can be increased.
４ ワイパーシールを短くしタンク側壁内面に対
し略直角となるように摺接させ、かつ、ワイパ
ーシールにタンク内面の付着物をかき落すのに
必要な程度の剛性をもたせたので、タンク側壁
内面の付着物を容易にかき落すことができる。4 The wiper seal is shortened and slides into contact with the inner surface of the tank side wall at approximately right angles, and the wiper seal has enough rigidity to scrape off the deposits on the inner surface of the tank, so the inner surface of the tank side wall Adherence can be easily scraped off.
第１図は本考案の断面図、第２図は従来装置の
断面図である。
１は側壁内面、２は浮屋根、３はガイドシユー
部、４はリンク装置、５は一次シール、８ａはカ
バーシール、８ｂはワイパーシールを示す。
FIG. 1 is a sectional view of the present invention, and FIG. 2 is a sectional view of a conventional device. 1 is the inner surface of the side wall, 2 is the floating roof, 3 is the guide shoe section, 4 is the link device, 5 is the primary seal, 8a is the cover seal, and 8b is the wiper seal.
Claims (1)
するガイドシユー部と、該ガイドシユー部を浮屋
根の上下動に連動し、かつ、側壁内面に押し付け
るように係合するリンク装置と、一端がガイドシ
ユー部の内面に、他端が前記浮屋根の外周面に固
着され、前記リンク装置の上部に位置し互いに密
接するＵ字状の一次シールと、該一次シールの上
部に配設される二次シールとよりなる浮屋根式油
タンクのシール装置において、一端が浮屋根の外
縁部に、他端がガイドシユー部の上端部に固着さ
れたカバーシールと、一端が前記ガイドシユー部
の上端部に、他端がタンクの側壁内面に対し略直
角となるように摺接する比較的短く、かつ、内面
の付着物をかき落すのに必要な程度の剛性をもつ
たワイパーシールとにより二次シールを構成し、
該ワイパーシールと前記一次シールのみを耐油ゴ
ム製としたことを特徴とする浮屋根式油タンクの
シール装置。 A guide shoe portion that slides on the inner surface of the side wall of the cylindrical tank and is in close contact with each other; a link device that engages the guide shoe portion in conjunction with the vertical movement of the floating roof and presses it against the inner surface of the side wall; A U-shaped primary seal whose other end is fixed to the outer circumferential surface of the floating roof and is located on the upper part of the link device and is in close contact with each other, and a secondary seal disposed on the upper part of the primary seal. A sealing device for a floating roof oil tank includes a cover seal having one end fixed to the outer edge of the floating roof and the other end fixed to the upper end of the guide shoe part, and one end fixed to the upper end of the guide shoe part and the other end fixed to the tank. A secondary seal is constituted by a wiper seal which is relatively short and has a degree of rigidity necessary to scrape off deposits on the inner surface, and which slides at a substantially right angle to the inner surface of the side wall.
A sealing device for a floating roof oil tank, characterized in that only the wiper seal and the primary seal are made of oil-resistant rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985072247U JPH037351Y2 (en) | 1985-05-17 | 1985-05-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985072247U JPH037351Y2 (en) | 1985-05-17 | 1985-05-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61188988U JPS61188988U (en) | 1986-11-25 |
| JPH037351Y2 true JPH037351Y2 (en) | 1991-02-22 |
Family
ID=30610483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985072247U Expired JPH037351Y2 (en) | 1985-05-17 | 1985-05-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH037351Y2 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6068287A (en) * | 1983-09-12 | 1985-04-18 | 日本鋼管株式会社 | Floating roof sealing device for oil tank |
-
1985
- 1985-05-17 JP JP1985072247U patent/JPH037351Y2/ja not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6068287A (en) * | 1983-09-12 | 1985-04-18 | 日本鋼管株式会社 | Floating roof sealing device for oil tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61188988U (en) | 1986-11-25 |
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