A Study on Locked-Position Monitor of Various Release Hooks for Lifeboats

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Project title

Code/計畫編號

MOST103-2622-E019-003-CC3

Translated Name/計畫中文名

各種型式救生艇脫鉤釋放器監測裝置之研究

Project Coordinator/計畫主持人

Ki-Yin Chang

Funding Organization/主管機關

National Science and Technology Council

Department/Unit

Department of Merchant Marine

Website

https://www.grb.gov.tw/search/planDetail?id=8314043

Year

2014

Start date/計畫起

01-06-2014

Expected Completion/計畫迄

31-05-2015

Bugetid/研究經費

611千元

ResearchField/研究領域

機械工程
自動化工程(工)

"救生艇配置於船舶上的目的是要保障船員生命財產之安全，但救生艇例行演練之釋放和回收中，屢屢發生釋放機構意外故障，造成人員之重大傷亡。本研究已採用感測器主動偵測舷側式釋放吊鈎是否正確定位，以解決未密封拉桿型態之舷側式救生艇釋放吊鈎於負載釋放時意外脫開的狀況。救生艇釋放吊鈎發展至今已經有70多種不同的類型，各類型之間的差異很大，本研究對多種救生艇釋放機構進行分析並分類，對於未密封拉桿之舷側式救生艇釋放吊鈎，其監測系統原則上使用三組電感式近接感測器，分別裝置於艇艏、艇艉釋放吊鈎拉桿附近以及水壓釋放器，並使用燈號面板來顯示其是否安全，若主要燈號為綠燈則表示釋放吊鈎處於鎖住位置之安全狀態，若燈號有紅燈則表示救生艇可能已經釋放於水面上，若釋放吊鈎離開水面未處於鎖住位置除了紅燈閃爍外警報鈴聲亦響起；對於密封式拉桿，在分析評估後目前仍無法安裝感測系統，但有鑒於國際救生設備章程中的規定：船員要能在封閉式救生艇內直接觀察吊艇鈎件的活動，所以密封式拉桿是否符合此規定表示質疑。對於自由落體式救生艇則安裝一組電感式接近感測器，來感測釋放機構是否處於鎖住之位置。本研究採用電子裝置的方式解決此問題，研究結果之觀念可提供給國際海事組織、救生艇製造廠等單位參考。救生艇釋放吊鈎發展至今已經有70多種不同的類型，各類型之間的差異很大，本研究對多種救生艇釋放機構進行分析並分類，對於未密封拉桿之舷側式救生艇釋放吊鈎，其監測系統原則上使用三組電感式近接感測器，分別裝置於艇艏、艇艉釋放吊鈎拉桿附近以及水壓釋放器，並使用燈號面板來顯示其是否安全，若主要燈號為綠燈則表示釋放吊鈎處於鎖住位置之安全狀態，若燈號有紅燈則表示救生艇可能已經釋放於水面上，若釋放吊鈎離開水面未處於鎖住位置除了紅燈閃爍外警報鈴聲亦響起；對於密封式拉桿，在分析評估後目前仍無法安裝感測系統，但有鑒於國際救生設備章程中的規定：船員要能在封閉式救生艇內直接觀察吊艇鈎件的活動，所以密封式拉桿是否符合此規定表示質疑。對於自由落體式救生艇則安裝一組電感式接近感測器，來感測釋放機構是否處於鎖住之位置。本研究採用電子裝置的方式解決此問題，研究結果之觀念可提供給國際海事組織、救生艇製造廠等單位參考。""There have been over 70 different types of lifeboat release hooks developed until now, each differing greatly from one another. This study analyzes the information of these different release hooks and categorizes them. In regard to open lever type broadside lifeboats, the motorizing system in principle, uses 3 Inductive Proximity Sensor sets which are installed in the fore, aft lifeboat release hook and the hydrostatic release device. The motorizing system utilizes light panels to show whether current conditions are safe or not, if the main light signal displays a green light, then this means that the release hook(s) is (are) in correct positions, and if the light signal displays a red light, then this means that the lifeboat may be in contact with the water. When the release hook leaves the water and is not in the proper locked position, then flashing red lights and alarm (audio) signals will be set off; After analysis for enclosed lever type lifeboats, this monitoring system cannot currently be installed for them. But since the LSA Code states that: the crew members should be able to directly observe the activities of release hook systems/components in lifeboats, the enclosed lever type is of question of whether it is in compliance with this requirement, thus providing not much of a concern in this thesis. For free fall lifeboat types, this study shows that the monitoring system of this thesis can be directly used. This thesis hopes to change current lifeboat accidental prevention measures for the world, and leap out of traditional thinking. To not only use methods of improving the life boat structure itself or additional add-on locks to prevent disasters, but to use electronic monitors to solve this problem, achieving safety and security of the life and property of the crew. The thesis results of this thesis and such concepts can be provided for the International Maritime Organization, surveyor associations, manufacturers, and other lifeboat related business to improve the safety of lifeboats. "

Keyword(s)

封閉式救生艇
自由落體式救生艇
釋放吊鉤
移位監測器
靜水連鎖裝置

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A Study on Locked-Position Monitor of Various Release Hooks for Lifeboats

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