JP2583281B2 - Long underwater laid object - Google Patents
Long underwater laid objectInfo
- Publication number
- JP2583281B2 JP2583281B2 JP63159344A JP15934488A JP2583281B2 JP 2583281 B2 JP2583281 B2 JP 2583281B2 JP 63159344 A JP63159344 A JP 63159344A JP 15934488 A JP15934488 A JP 15934488A JP 2583281 B2 JP2583281 B2 JP 2583281B2
- Authority
- JP
- Japan
- Prior art keywords
- laid object
- long underwater
- long
- underwater laid
- laid
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Supports For Pipes And Cables (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は，例えば原油または天然ガスの如き海上に汲
み上げられて採取される流体を生産する海上の生産設備
から海中に懸垂される複数本の流体輸送管，電力ケーブ
ル，通信ケーブル等から成る長尺水中布設物に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION INDUSTRIAL APPLICATION The present invention relates to a plurality of suspensions suspended from the sea from a production facility offshore which produces fluids that are pumped offshore, such as crude oil or natural gas. The present invention relates to a long underwater laid object including a fluid transport pipe, a power cable, a communication cable, and the like.
例えば，海底油田と海上浮遊式の生産設備との間に布
設される流体輸送管は金属，プラスチックの複合体から
構成されている可撓性管から成っており，その需要が次
第に増加している。海底油田の生産設備には原油，天然
ガスを輸送する流体輸送管だけでなく，圧力水注入管，
油圧機器制御用の油圧管，電力ケーブル，通信ケーブル
等が必要であり，これらの水中布設用長尺体は浮遊式生
産設備である浮上体から海中に懸垂して布設される。For example, fluid transport pipes laid between an offshore oil field and floating production facilities consist of flexible pipes composed of a composite of metal and plastic, and the demand for them is increasing gradually. . Offshore oilfield production facilities include not only fluid transport pipes for transporting crude oil and natural gas, but also pressure water injection pipes,
Hydraulic pipes for controlling hydraulic equipment, power cables, communication cables, etc. are required, and these long bodies for underwater installation are suspended from the floating body that is a floating production facility and installed in the sea.
この長尺水中布設物は，これらの長尺体（長尺水中布
設物本体）を一体に結束して懸垂して布設したり，大口
径の防護鋼管内に一括して収容して布設されている。This long underwater laid object can be laid and suspended by tying these long bodies (the long underwater laid object body) together, or can be housed together in a large-diameter protective steel pipe. I have.
流体輸送管は，大量の原油や天然ガスを高温，高圧で
輸送するが，この流体輸送管は外径が200〜300mmで単位
重量が100〜200kg/m程度のものが多く，従ってこのよう
な流体輸送管等の長尺水中布設物本体を一括して懸垂し
布設すると，施工作業，取扱が容易でなく，特に，各流
体輸送管毎の保守，点検，増設に柔軟に対応することが
できない。Fluid transport pipes transport large quantities of crude oil and natural gas at high temperatures and pressures, but these fluid transport pipes often have an outer diameter of 200 to 300 mm and a unit weight of about 100 to 200 kg / m. If a long underwater laid body such as a fluid transport pipe is suspended and laid in a lump, construction work and handling are not easy, and in particular, it is not possible to flexibly cope with maintenance, inspection, and expansion of each fluid transport pipe. .
このため，これらの複数本の長尺水中布設物本体を相
互に間隔をあけて保持することが試みられている。この
ように各長尺水中布設物本体の相互の間隔を設定する際
これらの布設物本体に加わる張力，曲げのバランスから
間隔を小さく設定するのが望ましいが，この場合，潮
流，波浪の影響によって布設物本体が相互に絡まったり
衝突することがないようにスペーサ手段によって布設物
本体の間隔を設定することが行なわれている。For this reason, attempts have been made to hold the plurality of long underwater laid object bodies at a distance from each other. In this way, when setting the distance between each of the long underwater laid bodies, it is desirable to set the distance to be small in consideration of the balance between the tension and bending applied to these laid bodies. Spacers are used to set the intervals between the laid object bodies so that the laid object bodies do not entangle or collide with each other.
しかし，第１図に示すように，長尺水中布設物10が懸
垂される浮上体１が，矢印で示すように，ピッチングに
よって回転すると，スペーサ手段によって拘束されて軸
線方向の自由な動きが阻害されている各布設物本体に点
線で示すようにスペーサ手段の拘束部を中心にして無理
な曲げ荷重が加わって異常な変形が生じ，その繰り返し
によって布設物本体が損傷する欠点があった。However, as shown in FIG. 1, when the floating body 1 on which the long underwater laying object 10 is suspended is rotated by pitching as shown by an arrow, it is restrained by the spacer means and the free movement in the axial direction is hindered. As shown by the dotted line, an excessive bending load is applied to the main body of the installed fabric around the restraining portion of the spacer means, and abnormal deformation occurs, and the main body of the installed fabric is damaged by repetition.
本発明の目的は，上記の欠点を回避し，各布設物本体
の軸線方向の自由な動きを阻害することなく，従って不
自然な曲げが付与されることがなく損傷を生ずることが
ないようにした長尺水中布設物を提供することにある。It is an object of the present invention to avoid the disadvantages mentioned above and to ensure that the free movement of the respective body of the installation in the axial direction is not impeded, so that no unnatural bending is applied and no damage occurs. To provide a long underwater laid object.
本発明は，上記の課題を解決するために，水面上の浮
上体から水中に懸垂され多段のスペーサ手段によって相
互に間隔をあけて保持された複数本の長尺水中布設物本
体から成る長尺水中布設物において，スペーサ手段は各
長尺水中布設物本体に把持され隣りの長尺水中布設物本
体に把持されたものと相互に衝合するように並べて配置
された複数のクランプ状スペーサと，隣り合うクランプ
状スペーサ相互に連結する紐状連結部材とから成ってい
ることを特徴とする長尺水中布設物を提供するものであ
る。In order to solve the above-mentioned problems, the present invention provides a long elongate underwater laid object body suspended from a floating body on the water surface and held at intervals from each other by a multi-stage spacer means. In the underwater laid object, the spacer means is provided with a plurality of clamp-shaped spacers arranged side by side so as to abut on each long underwater laid object body and abut on the adjacent long underwater laid object body. The present invention provides a long underwater laid article comprising a string-shaped connecting member connected to adjacent clamp-shaped spacers.
このように各長尺水中布設物本体の相互の間隔を設定
するスペーサ手段は長尺水中布設物本体に把持されたク
ランプ状スペーサから成っているのでこれらの布設物本
体はこのスペーサによって直接接触したり絡み合ったり
ることがなく，また隣り合うクランプ状スペーサは、可
撓性がある紐状連結部材によって相互に連結されている
ため、これらの隣り合うクランプ状スペーサが一定の間
隔に保持されることがなく、相互に自由に動くことがで
きるので、浮上体に潮流，波浪によってピッチングが生
じて浮上体が傾いても布設物本体に無理な曲げ荷重が加
わることがなく，布設物本体の損傷を生ずることがなく
なる。As described above, since the spacer means for setting the interval between the long underwater laid object bodies is composed of the clamp-like spacers gripped by the long underwater laid object body, these laid object bodies are directly contacted by this spacer. The adjacent clamp-shaped spacers are connected to each other by a flexible string-shaped connecting member, so that these adjacent clamp-shaped spacers are maintained at a constant interval. Can move freely with each other, so that even if the floating body is pitched due to tides and waves and the floating body is tilted, no excessive bending load is applied to the body of the laid object, and the body of the laid object can be damaged. Will not occur.
本発明の実施例を図面を参照して詳細に説明すると，
第１図は本発明に係る長尺水中布設物10を示し，この長
尺水中布設物10は，第１図に示すように，水面12上の浮
上体１から水中に懸垂され軸線方向に間隔をあけて設け
られた多段スペーサ手段14によって相互に間隔をあけて
保持された複数本の長尺水中布設物本体16から成ってい
る。既にのべたように，この長尺水中布設物本体16は，
流体輸送管，圧力水注入管，油圧管，電力ケーブル，通
信ケーブル，電力・通信複合ケーブルの如き可撓性長尺
体を含んでいる。Embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 shows a long underwater laid object 10 according to the present invention. As shown in FIG. 1, the long underwater laid object 10 is suspended in water from a floating body 1 on a water surface 12, and is spaced in an axial direction. It consists of a plurality of long underwater laid object bodies 16 which are held apart from each other by a multi-stage spacer means 14 provided at intervals. As already mentioned, this long underwater laid object body 16
It includes flexible elongated bodies such as fluid transport pipes, pressure water injection pipes, hydraulic pipes, power cables, communication cables, and combined power and communication cables.
各段のスペーサ手段14は，第２図及び第３図に示すよ
うに，各長尺水中布設物本体16に把持され隣りの長尺水
中布設物本体16に把持されたものと相互に衝合するよう
に並べて配置された複数のクランプ状スペーサ18と，隣
り合うクランプ状スペーサ18を相互に連結する紐状連結
部材20とから成っている。これらのクランプ状スペーサ
18は金属または合成樹脂から作ることができ，また紐状
連結部材20は金属または合成樹脂等の種々の材料から形
成された鎖またはロープから形成することができる。As shown in FIG. 2 and FIG. 3, the spacer means 14 of each stage abuts on each long underwater laid object body 16 and abuts on the adjacent long underwater laid object body 16 with each other. And a plurality of clamp-shaped spacers 18 arranged side by side, and a string-shaped connecting member 20 for interconnecting adjacent clamp-shaped spacers 18. These clamped spacers
18 can be made of metal or synthetic resin, and the string connecting member 20 can be made of chains or ropes made of various materials such as metal or synthetic resin.
図示の実施例では，クランプ状スペーサ18は，特に第
３図から解るように，ボルト・ナット22によって布設物
本体16に把持された２つ割のクランプ半部24A,24Bから
成っており，これらのクランプ半部24A,24Bにはその外
側に外径D2で膨らむ外周を形成する周面部材26A,26Bが
一体に形成されている。このクランプ状スペーサ18は，
他の多くのスペーサ18と衝合しないような大きさ（外径
D2），即ち隣りのスペーサ18にのみ衝合するような外径
D2に設定され，また布設物本体16が相互に接触するのを
防止するために布設物本体16の外径D1に対してD2＞2D1
に設定されている。In the embodiment shown, the clamping spacer 18 consists of two clamping halves 24A, 24B, which are gripped by the body 16 of the installation by means of bolts and nuts 22, as can be seen in particular from FIG. clamp halves 24A, the peripheral surface member 26A to 24B for forming the outer peripheral bulge in the outer diameter D 2 on the outside, 26B are integrally formed of. This clamp-shaped spacer 18
Dimensions (outer diameter) that do not collide with many other spacers 18
D 2 ), that is, an outer diameter that abuts only on the adjacent spacer 18
Is set to D 2, also D 2> 2D 1 with respect to the outer diameter D 1 of the laying material body 16 to laying material body 16 can be prevented from contacting with each other
Is set to
このように各長尺水中布設物本体16は布設物本体16に
把持されたクランプ状スペーサ18によって間隔が設定さ
れているが，特にこれらのクランプ状スペーサ18は、こ
れらのクランプ状スペーサ18の相互の間隔を一定に保持
することがない可撓性を有する紐状連結部材20によって
連結されているにすぎないので浮上体１にピッチングが
生じて第１図に示すように回転しても各段のクランプ状
スペーサ18は各布設物本体16の異なる軸線運動を許すよ
うに追従して変位し，従って，スペーサ手段14が長尺水
中布設物本体16を拘束することがなく，このため長尺水
中布設物本体16に無理な曲げ荷重が加わることがなくな
るので長尺水中布設物本体16が損傷することがなくな
る。尚，第２図（Ａ）に示すように，布設物本体16の設
定間隔をＬとし，スペーサ手段14の間隔をＰとした場合
にＰとＬの関係は布設物本体16が相互に接触することが
ないようにP/L＜25に設定するのが好ましい。As described above, the intervals between the long underwater laid object bodies 16 are set by the clamp-shaped spacers 18 gripped by the laid object body 16, and in particular, these clamp-shaped spacers 18 Are only connected by a flexible string-like connecting member 20 which does not maintain a constant distance between them, so that the floating body 1 is pitched, and even if it rotates as shown in FIG. The clamp-like spacers 18 of the body follow and displace to allow different axial movements of each body 16 so that the spacer means 14 does not restrain the body 16 of the long underwater body, and thus the long underwater body. Since an excessive bending load is not applied to the laid object body 16, the long underwater laid object body 16 is not damaged. In addition, as shown in FIG. 2 (A), when the set interval of the installed article main body 16 is L and the interval of the spacer means 14 is P, the relationship between P and L is such that the installed article main body 16 contacts each other. It is preferable to set P / L <25 so as not to cause the problem.
本発明によれば，上記のように，スペーサ手段は、可
撓性を有する紐状連結部材とスペーサ機能を有するクラ
ンプ状スペーサとによって、各布設物本体の軸線方向の
自由な動きを阻害することなく相互の間隔を設定するこ
とができるので浮上体の動きによって布設物本体に損傷
を生ずることがなくなる実益がある。According to the present invention, as described above, the spacer means hinders the free movement in the axial direction of each installation object body by the flexible string-like connecting member and the clamp-like spacer having the spacer function. Therefore, there is an advantage that the movement of the floating body does not cause damage to the laid object body because the distance between the floating bodies can be set without any damage.
第１図は本発明の長尺水中布設物の布設状態の概略説明
図，第２図及び第３図はそれぞれ本発明の長尺水中布設
物の要部の正面図及び第２図（Ａ）のＡ−Ａ線断面図で
ある。 １……浮上体,10……長尺水中布設物,14……スペーサ手
段,16……長尺水中布設物本体,18……クランプ状スペー
サ,20……紐状連結部材。FIG. 1 is a schematic explanatory view of a laid state of a long underwater laid article of the present invention, and FIGS. 2 and 3 are front views and FIG. 2 (A) of main parts of a long underwater laid article of the present invention, respectively. FIG. 4 is a sectional view taken along line AA of FIG. 1 ... Floating body, 10 ... Long underwater laid object, 14 ... Spacer means, 16 ... Long underwater laid object body, 18 ... Clamped spacer, 20 ... String-shaped connecting member.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 石井 健一 千葉県市原市八幡海岸通６ 古河電気工 業株式会社千葉事業所内 (56)参考文献 特開 昭54−107403（ＪＰ，Ａ) 実公 昭60−15787（ＪＰ，Ｙ２) ────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kenichi Ishii 6 Yawata Kaigandori, Ichihara-shi, Chiba Prefecture Furukawa Electric Co., Ltd. Chiba Works (56) References JP-A-54-107403 (JP, A) 60-15787 (JP, Y2)
Claims (1)
スペーサ手段によって相互に間隔をあけて保持された複
数本の長尺水中布設物本体から成る長尺水中布設物にお
いて，前記スペーサ手段は各長尺水中布設物本体に把持
され隣りの長尺水中布設物本体に把持されたものと相互
に衝合するように並べて配置された複数のクランプ状ス
ペーサと，隣り合うクランプ状スペーサ相互に連結する
紐状連結部材とから成っていることを特徴とする長尺水
中布設物。1. A long underwater laid object comprising a plurality of long underwater laid object bodies suspended from the floating body on the water surface in water and held at a distance from each other by multi-stage spacer means. Are a plurality of clamp-shaped spacers that are gripped by each long underwater laid object body and are arranged side by side so as to abut against those gripped by the adjacent long underwater laid object body; A long underwater laid object comprising a string-shaped connecting member to be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63159344A JP2583281B2 (en) | 1988-06-29 | 1988-06-29 | Long underwater laid object |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63159344A JP2583281B2 (en) | 1988-06-29 | 1988-06-29 | Long underwater laid object |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0213690A JPH0213690A (en) | 1990-01-18 |
| JP2583281B2 true JP2583281B2 (en) | 1997-02-19 |
Family
ID=15691791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63159344A Expired - Lifetime JP2583281B2 (en) | 1988-06-29 | 1988-06-29 | Long underwater laid object |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2583281B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54107403A (en) * | 1978-02-10 | 1979-08-23 | Mitsui Shipbuilding Eng | Apparatus for connecting plural row of knotted riser |
| JPS6015787U (en) * | 1983-07-13 | 1985-02-02 | 株式会社フジクラ | sheet heating element |
-
1988
- 1988-06-29 JP JP63159344A patent/JP2583281B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0213690A (en) | 1990-01-18 |
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