Abstract: Hoistable deck, as a particular equipment for Ro-Ro ships, is suitable for Ro-Ro ships that need to switch loading conditions between cars and trucks. The ships equipped with the hoistable decks can easily switch the situation of the loading deck according to the loading requirement to improve the efficiency of transportation.However, the fixed connection between the traditional pressure mist pipeline and the fire main pipe that is set at the bottom of the hoistable deck will obstruct the lifting of the deck. Some pipelines need to be removed and reconnected after the adjustment of the deck position, which is extremely disadvantageous in terms of safety and convenience. The tightness of the pipeline cannot be guaranteed after each disassembly and assembly, as well as a large number of pipelines demands to be disassembled and assembled whenever the hoistable deck is altered. A side pressure water mist spray system is proposed to solve the fire protection problem of the pressure water mist system on the hoistable decks.

Key words: hoistable deck, pressure water mist, side spray

摘要： 升降式甲板作为一种滚装船舶专用的特种设备,适用于需要在装载小型车与大型车间切换的滚装船舶。配置升降式甲板的船舶可根据装载需求,灵活切换装车甲板状态,提高运输效率。然而,在升降式甲板底部设置的传统压力水雾管路与消防总管的固定连接会对甲板升降造成阻碍,需要拆除部分管路并在甲板位置调整后重新连接。这无论从安全性和便利性来看均极为不利,一方面无法保证管路每次拆装后的密性,同时每次改变升降式甲板状态都需要拆装大量管路。该文主要提出侧向压力水雾喷淋的设计方案,用于解决升降式甲板的压力水雾消防问题。

关键词: 升降式甲板, 压力水雾, 侧向喷淋