“潮高4.8米，风力2级，现场条件满足下水作业要求，可以下水！”随着现场指挥的一声令下，在山东港口装备集团华海基地，伴着漫天雪花，一座巨大的、披着黄色外衣的矩形网箱乘坐着数只由青岛永泰船舶用品有限公司生产的船舶上排下水专用气囊平稳滑入海中。它就是山东港口研发制造的首座深远海养殖网箱“财金海上粮仓壹号—1”。
“财金海上粮仓壹号—1”的成功气囊下水，是山东港口全面落实山东省委、省政府“海洋强省”战略部署要求，积极开拓深远海养殖装备市场业务发展的重要标志；是对深海渔业养殖高质量发展的有力支持，对于提升海洋经济的发展水平，增强海洋综合实力，以及推进生态文明建设等方面都具有积极的推动作用。
“财金海上粮仓壹号—1”总长89米，宽45.5米，高度35.9米，具备自身升降控制能力，可在近海海域拖航移动，便于在指定海域进行维护保养。网箱设置液位遥测系统和环境监测系统，具备液位高低报警、饲料投喂、能源供给，以及海域水温、溶解氧等水文参数监测功能，可以实现深海养殖无人值守。正式投产运营后，可以有效解决传统海上养殖装备抗风浪性能低、人工喂养成本高、养殖作业效率低等发展痛点，实现深海渔业养殖生产的集约化、智能化。
作为山东港口首次建造的深远海养殖网箱，制造难度大、智慧化程度高。为了顺利完成网箱的研发制造，装备集团高度重视，组织精干力量成立攻坚团队，克服恶劣天气、技术难关等一系列问题。300余名铁军将士锚定下水目标，日夜奋战，以惊人的毅力、不屈不挠的精神顺利完成气囊下水任务。
本次网箱的成功气囊下水，离不开日照港、港湾建设集团的鼎力支持，“岚港拖18”“日港拖26”“日港工拖26”等船舶为“财金海上粮仓壹号—1”下水保驾护航。用自家建造的船舶为自家研发建造的首座网箱完成气囊下水任务，彰显装备集团出色的研发制造能力和山东港口各直属单位握指成拳的融合力量。
On the morning of January 16, 2024, at 8:30 AM, EVERSAFE MARINE successfully launched a 3000-ton deep-sea aquaculture cage in Rizhao City, Shandong Province, using airbag ship launching technology. The cage, named “Sea Granary One,” is a fully submersible deep-sea salmon farming cluster cage. It measures 89 meters in length, 45 meters in width, and 32 meters in height, with a launch weight of 3000 tons. The cage features a fully submersible rigid cage structure, with a maximum aquaculture water capacity of 40,000 cubic meters, and an estimated annual production of over 1300 tons of salmon.
The construction of the cage was completed by Shandong Port Equipment Group Co., Ltd., and the launching ramp was made of cement, divided into two sections. The above-water slope is 1/70, and the underwater slope is 1/20. EVERSAFE MARINE utilized 42 high-strength marine airbags arranged in two rows for the launch. The airbag cage launching process consists of three steps: 1- lifting the cage with airbags and removing the supports, 2- moving the cage to the water’s edge on the launch platform, 3- launching the cage into the water at high tide. During the lifting process, the cage is secured with a winch, and airbags are inserted between the supports at the bottom of the cage. When the airbags are inflated to 0.15 MPa, the cage leaves the supports, and the supports are removed. Controlled by the winch, the cage moves 120 meters until it reaches the water. At high tide, the winch releases the steel wire rope, allowing the cage to smoothly enter the water with the rolling airbags. With the continuous development of ocean ranching technologies and policy guidance, modern ocean ranches are gradually moving towards the “deep-sea” direction. The deep-sea aquaculture cages built in China are increasing in volume and weight. Using airbag launching technology can shorten the construction cycle of site foundations and save a considerable amount of funds. EVERSAFE MARINE, as a specialist company in airbag engineering, takes pride in contributing to the economic development of China in various fields.
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