JPS59128094A - Sea water supplying device for off-shore working platform - Google Patents
Sea water supplying device for off-shore working platformInfo
- Publication number
- JPS59128094A JPS59128094A JP194183A JP194183A JPS59128094A JP S59128094 A JPS59128094 A JP S59128094A JP 194183 A JP194183 A JP 194183A JP 194183 A JP194183 A JP 194183A JP S59128094 A JPS59128094 A JP S59128094A
- Authority
- JP
- Japan
- Prior art keywords
- seawater
- pump
- chamber
- sea water
- working platform
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
【発明の詳細な説明】 本発明は、海上作業台への海水供給装置に関する。[Detailed description of the invention] The present invention relates to an apparatus for supplying seawater to an offshore work platform.
一般に、海上作業台(ジヤツキアップリグ)の海水供給
装置では、海上作業台がリグの固定およびンヤケソト掘
りのため、リグをジヤツキアップする際に、海水面とリ
グとの間にできる高さの変動に応じて取水できるように
なっている。In general, with a seawater supply device for an offshore work platform (jack-up rig), height fluctuations occur between the sea level and the rig when the offshore work platform jacks up the rig for fixing the rig and digging. Water can be taken in according to demand.
ところが、水深は場所ごとに不定であり、海水供給装置
の位置決めは簡単ではない。However, the depth of water varies from place to place, and positioning the seawater supply device is not easy.
そこで、従来の海水供給装置では、予め設定した水位に
対応したリグの脚部の必要な高さに水中ポンプを取付け
、リグの脚部の動慇を利用するやり方が用いられている
。Therefore, in conventional seawater supply devices, a submersible pump is attached to the required height of the rig leg corresponding to a preset water level, and the movement of the rig leg is utilized.
また、従来の池の海水供給装置では、水中ポンプをクレ
ーン等の外力を利用して設定した水位になるように取1
寸けるやり方も採用されている。In addition, in conventional pond seawater supply systems, the submersible pump is installed using an external force such as a crane to reach the set water level.
A shortcut method has also been adopted.
しかしながら、このような従来の海上作業台への海水供
給装置には、次のような欠点ないし問題点がある。However, such conventional seawater supply devices for offshore work platforms have the following drawbacks and problems.
(1)いずれも水中ポンプを用いており、高価で納期も
長い。(1) Both use submersible pumps, which are expensive and require long delivery times.
(2)リグの脚部やクレーンの範囲内にポンプを配設し
なければならず配置場所の制約がある。(2) The pump must be installed within the range of the legs of the rig or the crane, and there are restrictions on where it can be placed.
(3)水中ポンプがリグに固定されているので、リグの
ジヤツキアップ時に、この分の荷重がかかり、不利とな
る。(3) Since the submersible pump is fixed to the rig, this amount of load is applied when the rig is jacked up, which is disadvantageous.
本発明は、これらの問題点を解決しようとするもので、
特殊な水中ポンプを用いずに、通常のポンプで海水を海
上作業台へ供給できるようにするとともに、その配置場
所についての制約を受けないようにした、海上作業台へ
の海水供給装置を提供することを目的とする。The present invention aims to solve these problems.
To provide a seawater supply device to an offshore working platform which enables seawater to be supplied to an offshore working platform using a normal pump without using a special submersible pump, and which is free from restrictions on its placement location. The purpose is to
このため、本発明の海上作業台への海水供給装置は、海
上作業台を鉛直方向に貫通して昇降可能に設けられた柱
状部材と、同柱状部材の重量を支持すべく同柱状部材の
下端部に設けられた浮力室と、上記柱状部材に水密に設
けられたポンプ室と、同ポンプ室内に設けられた海水ポ
ンプに連結されて上記溝」一作業台へ海水を供給する海
水送給管とをそなえたことを特徴としている。For this reason, the seawater supply device for an offshore workbench of the present invention includes a columnar member vertically penetrating the offshore workbench and provided so as to be movable up and down, and a lower end of the columnar member to support the weight of the columnar member. a buoyancy chamber provided in the section, a pump chamber watertightly provided in the columnar member, and a seawater feed pipe that is connected to a seawater pump provided in the pump chamber and supplies seawater to the workbench in the groove. It is characterized by having the following.
以下、図面により本発明の一実施例としての海上作業台
への海水供給装置について説明すると、第1図は海上作
業台が海上に浮いている場合の海水供給装置を示す側面
図、第2図は第1図の■−■矢視断面図、第3図は海上
作業台のジヤツキアップ時の海水供給装置を示す側面図
である。Hereinafter, a seawater supply system for an offshore workbench as an embodiment of the present invention will be explained with reference to the drawings. Fig. 1 is a side view showing the seawater supply system when the offshore workbench is floating on the sea, and Fig. 2 1 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a side view showing the seawater supply device when jacking up the offshore work platform.
第1図に示すように、海上作業台1には鉛直方向に貫通
する案内孔部11が開口しており、この案内孔部11に
は海水供給装置本体Aを構成する柱状部祠4が昇降可能
に設けられている。As shown in FIG. 1, a guide hole 11 is opened in the offshore work platform 1 and extends vertically through the guide hole 11, and a columnar part 4 that constitutes the seawater supply device main body A is raised and lowered in the guide hole 11. possible.
柱状部材4は、4本のパイプ状垂直部材10と各パイプ
状垂直部材10を連結補強するフレームとで構成されて
いる。(第2図参照)
柱状部材4の下端部には、浮力室2および海水ポンプ室
12が設けられてお、す、浮力室2は、柱状部材4の重
量をその浮力によって支持するものであり、図示しない
バラストポンプ装置を有してバラストタンクとしてのべ
能も兼ね備えている。The columnar member 4 is composed of four pipe-like vertical members 10 and a frame that connects and reinforces each pipe-like vertical member 10. (See Figure 2) A buoyancy chamber 2 and a seawater pump chamber 12 are provided at the lower end of the columnar member 4. The buoyancy chamber 2 supports the weight of the columnar member 4 by its buoyancy. It has a ballast pump device (not shown) and also functions as a ballast tank.
海水ポンプ室12は水蜜構造となっており、その内部に
、外部の海水を吸入しうる海水ポンプPが設けられてい
る。The seawater pump chamber 12 has a watertight structure, and is provided with a seawater pump P capable of sucking external seawater.
この海水ポンプPは、海水吸入管13を通して吸入した
海水を、柱状部材4に固定された海水送給管5およびフ
レキシブルパイプ6を介して海上作業台1へ供給する。This seawater pump P supplies seawater sucked through a seawater suction pipe 13 to the offshore work platform 1 via a seawater supply pipe 5 and a flexible pipe 6 fixed to a columnar member 4.
なお、各l中の符号3は、空洞通路を構成する円筒を示
しており、7は柱状部材4の固定金物、8,9はいずれ
も支持ワイヤ、14はワイヤ挿通孔、I S、16はい
ずれもワイヤ係止部材、17.18はそれぞれ海水送給
管5およびフレキシブルパイプ6に沿って配設された電
線、Wは海水面を示している。In addition, the code|symbol 3 in each l shows the cylinder which comprises a hollow passage, 7 is the fixing hardware of the columnar member 4, 8 and 9 are both support wires, 14 is a wire insertion hole, IS, 16 is All are wire locking members, 17 and 18 are electric wires disposed along the seawater supply pipe 5 and the flexible pipe 6, respectively, and W indicates the seawater level.
本発明の海上作業台への海水供給装置は上述のごとく構
成されているので、第1図に示すように、海上作業台1
の曳航時またはツヤツキアップ前の状態では、海上作業
台1は自己の浮力で水面に浮いている。Since the seawater supply device for the offshore work platform of the present invention is configured as described above, as shown in FIG.
When being towed or before being polished, the offshore work platform 1 floats on the water surface due to its own buoyancy.
海水供給装置本体Aは、浮力室2の浮力で、自己の直接
の重量を海上作業台1にかけないように浮いた状態で、
動揺や振動防止のために固定金物7および支持ワイヤ8
で海上作業台1に固定されている。この時の海水供給装
置本体Aの水位は、浮力室2に設けられ−ζいるバラス
トポンプ装置によりrA整される。The seawater supply device main body A is in a floating state due to the buoyancy of the buoyancy chamber 2 so as not to apply its own weight directly to the offshore work platform 1.
Fixed hardware 7 and support wire 8 to prevent shaking and vibration
It is fixed to the offshore work platform 1. At this time, the water level of the seawater supply device main body A is adjusted to rA by the ballast pump device provided in the buoyancy chamber 2.
次いで、海水ポンプ室12内に装備されている海水ポン
プPで水を吸入し、海水送給管5およびフレキシブルパ
イプ6を通じて、海上作業台1内へと送水する。Next, water is sucked in by the seawater pump P installed in the seawater pump room 12 and sent into the offshore workbench 1 through the seawater supply pipe 5 and the flexible pipe 6.
ここで、フレキシブルパイプ6が使用されているので、
海上作業台1と柱状部材4との相対的摺動にかかわらず
、途切れることなく通水可能となっている。Here, since the flexible pipe 6 is used,
Regardless of the relative sliding between the offshore work platform 1 and the columnar member 4, water can flow without interruption.
さらに、第3図に示すように、海上作業台1をジヤツキ
アップして、作業可能の状態とするには、第1図に示す
支持ワイヤ8を外し、浮力室2に設けられているバラス
トポンプ装置を調整しなが呟固定金物7を外して、海水
供給装置本体Aを必要水位に浮かす。Furthermore, as shown in FIG. 3, in order to jack up the offshore work platform 1 and make it ready for work, the support wire 8 shown in FIG. 1 is removed and the ballast pump device installed in the buoyancy chamber 2 is While adjusting, remove the fixing hardware 7 and float the seawater supply device body A to the required water level.
次に、第3図に示すように、海上作業台1を予定位置に
ジヤツキアップし、固定金物7と支持ワイヤ9とで、海
上作業台1に海水供給装置本体Aを固定する。Next, as shown in FIG. 3, the offshore workbench 1 is jacked up to a predetermined position, and the seawater supply device main body A is fixed to the offshore workbench 1 using the fixing hardware 7 and the support wire 9.
ここで、支持ワイヤ9は、必要な時に作業船にて海水供
給装置本体Aに取付ける。そして、この海水供給装置本
体Aによって、送水が行なわれる。Here, the support wire 9 is attached to the seawater supply device main body A by a work boat when necessary. Water is fed by this seawater supply device main body A.
また、第3図の状態から第1図の状態へ移行するには、
上述の手順と逆の手順が行なわれる。Also, in order to transition from the state shown in Figure 3 to the state shown in Figure 1,
The procedure described above is reversed.
なお、浮力室2内の機器は、海上作業台1から遠隔繰作
する装置にすれば、海水ポンプ室12に人が繰作のため
に行く必要はないが、運転中に浮力室2に人が入る場合
には、円筒3から入ることができる。If the equipment in the buoyancy chamber 2 is operated remotely from the offshore workbench 1, there is no need for people to go to the seawater pump room 12 for operation, but if the equipment in the buoyancy chamber 2 is operated remotely, If it enters, it can enter from the cylinder 3.
以上詳述したように、本発明の海上作業台への海水供給
装置によれば、海上作業台を鉛直方向に貫通して昇降可
能に設けられた柱状部材と、同柱状部材の重量を支持す
べく同柱状部材の下端部に設けられた浮力室と、上記柱
状部材に水密に設けられたポンプ室と、同ポンプ室内に
設けられた海水ポンプに連結されて上記海上作業台へ海
水を供給する海水送給管とをそなえるという簡素な構成
で、次のような効果ないし利点かある。As described in detail above, according to the seawater supply device for an offshore workbench of the present invention, there is a columnar member that vertically penetrates the offshore workbench and is movable up and down, and a columnar member that supports the weight of the columnar member. A buoyancy chamber provided at the lower end of the columnar member, a pump chamber watertightly provided in the columnar member, and a seawater pump provided in the pump chamber are connected to supply seawater to the offshore work platform. It has a simple configuration consisting of a seawater feed pipe and has the following effects and advantages.
(1)高価な水中ポンプを用いることなく、安価な一般
ポンプを使用することができ、コスト低減化に寄与する
。(1) An inexpensive general pump can be used without using an expensive submersible pump, contributing to cost reduction.
(2)海水の吸入水位調節を浮力で行なうので、簡単に
設定水位の調節ができる。(2) Since the seawater intake level is adjusted using buoyancy, the set water level can be easily adjusted.
(3)海水供給装置本体の取付場所を、従来装置のよう
にリグの脚部やクレーンの範囲内に限定する必要がなく
、取付範囲を広げることができる。(3) The installation location of the seawater supply device body does not have to be limited to the legs of the rig or within the range of the crane, unlike conventional devices, and the installation range can be expanded.
図は本発明の一実施例としての海上作業台への海水供給
装置を示すもので、第1図は海上作業台が海上に浮いて
いる場合の海水供給装置を示す側面図、第2図は第1図
の■−■矢視断面図、13図は海上作業台のジヤツキア
ップ時の海水供給装置を示す側面図である。
1・・海上作業台、2・・浮力室、3・・円筒、4・・
柱状部材、5・・海水送給管、6・・7レキシフルパイ
プ、7・・固定金物、8,9・・支持ワイヤ、10・・
パイプ状垂直部祠、11・・案内孔部、12・・海水ポ
ンプ室、13・・海水吸入管、14・・ワイヤ挿通孔、
15.16・・ワイヤ係止部材、17118・・電線、
A・・海水供給装置本体、P・・海水ポンプ、W・・海
面。
復代理人 弁理士 飯 沼 義 彦
第2図The figures show a seawater supply system for an offshore work platform as an embodiment of the present invention. Figure 1 is a side view of the seawater supply system when the offshore work platform is floating on the sea, and Figure 2 is a side view of the seawater supply system when the offshore work platform is floating on the sea. FIG. 1 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 13 is a side view showing the seawater supply device when jacking up the offshore work platform. 1. Marine work platform, 2. Buoyancy chamber, 3. Cylinder, 4.
Column member, 5...Seawater feed pipe, 6...7 Lexiful pipe, 7...Fixing hardware, 8, 9...Support wire, 10...
Pipe-shaped vertical part shrine, 11... Guide hole part, 12... Seawater pump chamber, 13... Seawater suction pipe, 14... Wire insertion hole,
15.16... Wire locking member, 17118... Electric wire,
A...Seawater supply device body, P...Seawater pump, W...Sea surface. Sub-Agent Patent Attorney Yoshihiko Iinuma Figure 2
Claims (1)
柱状部材と、同柱状部材の重量を支持す〉く同柱状部材
の下端部に設けられた浮力室と、上記柱状部材に水密に
設けられたポンプ室と、同ポンプ室内に設けられた海水
ポンプに連結されて上記海上作業台へ海水を供給する海
水送給管とをそなえたことを特徴とする、海」二作業台
への海水供給装置。A columnar member that vertically penetrates the offshore work platform and is vertically movable; a buoyancy chamber provided at the lower end of the columnar member to support the weight of the columnar member; A pump room provided in the seawater workbench, and a seawater supply pipe connected to a seawater pump provided in the pump room to supply seawater to the seawater workbench. Seawater supply equipment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP194183A JPS59128094A (en) | 1983-01-10 | 1983-01-10 | Sea water supplying device for off-shore working platform |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP194183A JPS59128094A (en) | 1983-01-10 | 1983-01-10 | Sea water supplying device for off-shore working platform |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS59128094A true JPS59128094A (en) | 1984-07-24 |
Family
ID=11515631
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP194183A Pending JPS59128094A (en) | 1983-01-10 | 1983-01-10 | Sea water supplying device for off-shore working platform |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS59128094A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2372965A (en) * | 2000-12-12 | 2002-09-11 | John Brown Hydrocarbons Ltd | Water intake for a floating offshore platform |
KR101370064B1 (en) * | 2012-08-28 | 2014-03-05 | 삼성중공업 주식회사 | Apparatus of supplying sea |
CN113202783A (en) * | 2021-06-07 | 2021-08-03 | 中船黄埔文冲船舶有限公司 | Seawater lifting device and ocean platform |
-
1983
- 1983-01-10 JP JP194183A patent/JPS59128094A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2372965A (en) * | 2000-12-12 | 2002-09-11 | John Brown Hydrocarbons Ltd | Water intake for a floating offshore platform |
KR101370064B1 (en) * | 2012-08-28 | 2014-03-05 | 삼성중공업 주식회사 | Apparatus of supplying sea |
CN113202783A (en) * | 2021-06-07 | 2021-08-03 | 中船黄埔文冲船舶有限公司 | Seawater lifting device and ocean platform |
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