JPH0459240B2 - - Google Patents
Info
- Publication number
- JPH0459240B2 JPH0459240B2 JP8221085A JP8221085A JPH0459240B2 JP H0459240 B2 JPH0459240 B2 JP H0459240B2 JP 8221085 A JP8221085 A JP 8221085A JP 8221085 A JP8221085 A JP 8221085A JP H0459240 B2 JPH0459240 B2 JP H0459240B2
- Authority
- JP
- Japan
- Prior art keywords
- valves
- emergency
- valve
- fluid
- gas
- 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
- 239000012530 fluid Substances 0.000 claims description 10
- 239000007789 gas Substances 0.000 description 12
- 239000007788 liquid Substances 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、ローデイングアームによる船舶との
荷役時において、管路を切離すべき緊急事態が発
生した際に使用する管路の緊急切離し装置に関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an emergency pipeline disconnection device that is used when an emergency situation requiring disconnection of a pipeline occurs during cargo handling with a ship using a loading arm.
従来の技術
第２図に従来の緊急離脱装置の概念を示す。同
図において０１および０２はバルブ、０３は切離
し装置、０４および０５はバルブ駆動用油圧アク
チユエータであり、緊急時にはアクチユエータ０
４，０５を作動させ、バルブ０１，０２を閉鎖し
た後に切離し装置０３により管路を切離す。BACKGROUND ART FIG. 2 shows the concept of a conventional emergency release device. In the figure, 01 and 02 are valves, 03 is a disconnection device, and 04 and 05 are hydraulic actuators for driving the valves.In an emergency, actuator 0
After activating valves 4 and 05 and closing valves 01 and 02, the disconnection device 03 disconnects the pipe line.
発明が解決しようとする問題点
管路の切離し時は、バルブとバルブの間に封入
された液もしくは気体が外部へ流出するため非常
に危険である。Problems to be Solved by the Invention When a pipe line is disconnected, it is very dangerous because the liquid or gas sealed between the valves flows out.
問題点を解決するための手段
２個のバルブの間に加圧不燃性ガスの供給部材
と管路内流体の排出部材とを設ける。Means for Solving the Problems A pressurized nonflammable gas supply member and a pipe fluid discharge member are provided between the two valves.
作 用
緊急時には２個のバルブを閉鎖し、２個のバル
ブの間に残つている管路内流体を不燃性ガスで迅
速に追出し、しかる後にバルブの中間部を切離
す。Function: In an emergency, the two valves are closed, the fluid remaining in the pipeline between the two valves is quickly expelled with nonflammable gas, and then the middle part of the valves is cut off.
実施例
第１図において、１及び２はバルブ（バタフラ
イバルブを図示しているが他の型式のボールバル
ブ等でもよい）、３はバルブ駆動用アクチユエー
タ、４はリンク機構、５は切離し装置、６はチエ
ツキ弁、７は入り側バルブ、８は入り側バルブ駆
動用アクチユエータ、９は出側バルブ、１０は出
側バルブ駆動用アクチユエータである。このよう
な装置において、入り側バルブ７には加圧された
窒素ガス等の不燃性ガスが供給される。緊急事態
発生と同時に自動的もしくは操作員よりの信号に
より、バルブ１，２はバルブ駆動用アクチユエー
タ３及びリンク機構４により閉鎖される。バルブ
１，２の閉鎖位置はリツトスイツチ（図示せず）
により検出されその信号によりバルブ７，９がア
クチユエータ８，１０によつて開かれる。この時
入り側バルブ７側のラインには常時加圧された不
燃性ガスが供給されており、入り側バルブ７が開
かれることにより不燃性ガスはバルブ１，２の間
へ流入し出側バルブ９を通してバルブ１，２の間
の液もしくは気体を排出する。排出が完了すると
同時にバルブ７，８を閉じ切離し装置５を働かせ
ることにより切離す。これによりバルブ１，２の
間の液もしくは気体は外部へ流出することなく回
収出来る。排出された液もしくは気体は出側バル
ブ９に接続された配管等により陸側もしくは船側
のドレンもしくはタンクのラインへ戻すかもしく
はローデイングアームもしくは桟橋上に常設され
たタンクは戻すことが出来る。Embodiment In FIG. 1, 1 and 2 are valves (a butterfly valve is shown, but other types of ball valves may be used), 3 is a valve drive actuator, 4 is a link mechanism, 5 is a disconnection device, and 6 1 is a check valve, 7 is an inlet valve, 8 is an actuator for driving the inlet valve, 9 is an outlet valve, and 10 is an actuator for driving the outlet valve. In such a device, the inlet valve 7 is supplied with pressurized nonflammable gas such as nitrogen gas. As soon as an emergency occurs, the valves 1 and 2 are closed by the valve drive actuator 3 and the link mechanism 4 automatically or by a signal from an operator. The closed position of valves 1 and 2 is determined by a lit switch (not shown).
The valves 7 and 9 are opened by the actuators 8 and 10 in response to the signal detected by the actuators 8 and 10, respectively. At this time, pressurized nonflammable gas is constantly supplied to the line on the inlet side valve 7 side, and when the inlet side valve 7 is opened, the nonflammable gas flows into between valves 1 and 2, and the inflammable gas flows into the line on the outlet side valve 7. The liquid or gas between valves 1 and 2 is discharged through 9. At the same time as the discharge is completed, the valves 7 and 8 are closed and the disconnection device 5 is operated to disconnect the gas. Thereby, the liquid or gas between the valves 1 and 2 can be recovered without flowing out to the outside. The discharged liquid or gas can be returned to the drain or tank line on the land side or ship side through piping connected to the outlet valve 9, or it can be returned to a tank permanently installed on the loading arm or pier.
発明の効果
緊急時に管路を切離す前に、２個のバルブの間
に残つている流体を不燃性ガスで置換するので、
管路を切離す際にバルブ間の流体が外部に流出せ
ず、安全な切離しを行うことができる。Effects of the invention Before disconnecting the pipe in an emergency, the fluid remaining between the two valves is replaced with nonflammable gas.
When disconnecting the pipe line, the fluid between the valves does not leak to the outside, allowing safe disconnection.
第１図は本発明流体荷役装置用緊急離脱装置の
実施例の概略断面図、第２図は従来装置の概略図
である。
１，２…バルブ、７…入り側バルブ、９…出側
バルブ。
FIG. 1 is a schematic sectional view of an embodiment of the emergency release device for a fluid cargo handling device of the present invention, and FIG. 2 is a schematic view of a conventional device. 1, 2...Valve, 7...Inlet side valve, 9...Outlet side valve.
Claims (1)
ブと、前記バルブの中間に設けられた切離し装置
とからなる流体荷役装置の緊急離脱装置におい
て、前記２個のバルブの中間部に加圧不燃性ガス
の供給部材と管路内流体の排出部材とを設け、緊
急時には前記バルブの中間部に加圧不燃性ガスを
供給し、中間部の管路内流体を排出した後に前記
切離し装置により前記中間部を切離すようにした
ことを特徴とする流体荷役装置用緊急離脱装置。1. In an emergency disconnection device for a fluid cargo handling device consisting of two valves installed in the middle of a fluid supply pipeline and a disconnection device installed in the middle of the valves, pressurization is applied to the intermediate portion of the two valves. A nonflammable gas supply member and a pipe fluid discharge member are provided, and in an emergency, pressurized nonflammable gas is supplied to the middle part of the valve, and after the pipe pipe fluid in the middle part is discharged, the disconnection device is used. An emergency release device for a fluid cargo handling device, characterized in that the intermediate portion is separated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8221085A JPS61244799A (en) | 1985-04-19 | 1985-04-19 | Emergency release device for fluid cargo gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8221085A JPS61244799A (en) | 1985-04-19 | 1985-04-19 | Emergency release device for fluid cargo gear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61244799A JPS61244799A (en) | 1986-10-31 |
| JPH0459240B2 true JPH0459240B2 (en) | 1992-09-21 |
Family
ID=13768057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8221085A Granted JPS61244799A (en) | 1985-04-19 | 1985-04-19 | Emergency release device for fluid cargo gear |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61244799A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62135199A (en) * | 1985-12-05 | 1987-06-18 | 株式会社新潟鐵工所 | Residual-liquid discharger in emergency separator for fluid cargo gear, etc. |
| JPS62146199A (en) * | 1985-12-17 | 1987-06-30 | 株式会社新潟鐵工所 | Residual-liquid treater in emergency separating section for fluid cargo gear, etc. |
| FR2815025B1 (en) * | 2000-10-06 | 2003-08-29 | Eurodim Sa | SYSTEM FOR TRANSFERRING A FLUID PRODUCT, IN PARTICULAR LIQUEFIED NATURAL GAS AT CRYOGENIC TEMPERATURE, BETWEEN A TRANSPORT VESSEL AND A LAND TREATMENT AND STORAGE FACILITY FOR THIS PRODUCT |
| JP2006300112A (en) * | 2005-04-15 | 2006-11-02 | Inax Corp | Pilot valve |
-
1985
- 1985-04-19 JP JP8221085A patent/JPS61244799A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61244799A (en) | 1986-10-31 |
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