青岛永泰长荣，船舶上排下水气囊的技术革新与工程价值

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        经过 20 余年的使用经验积累，国内外多数造船厂已十分熟悉船用气囊上排下水这一新技术（其亦可作为沉船打捞气囊、助浮气囊和堵水封堵气囊使用），但部分新用户仍对其缺乏信心。

为此，青岛永泰长荣总结以下气囊优势，以打消客户顾虑：

1. 显著的成本节约

• 采购与运营成本低：与建造干船坞或购置大型起重设备相比，气囊的采购成本显著更低。此外，其无需长期维护复杂设施，可减少 30%-50% 的资本投入。
• 维护简便：仅需定期检查气囊外部、阀门等部件，无需专用维护设备，大幅降低人工与时间成本。
  

2. 高操作灵活性与稳定性

• 浮力可控：通过调节气囊内部气压，可精准控制浮力以支撑船体重量，避免传统滑道下水时因摩擦不均导致的失衡问题（如朝鲜驱逐舰事件中滑板脱落引发的船体倾斜）。
• 姿态灵活调整：可通过逐步充放气控制船体倾斜角度，确保下水过程更平稳。例如，参考文献中提及的 “尾部倾斜” 技术借助重力自然入水，可降低机械干预风险。
  

3. 大幅降低安全风险

• 规避传统事故隐患：传统滑道下水易因滑板平行度偏差（如朝鲜事件中船尾滑板先脱落导致船体损伤）或摩擦系数突变引发事故。气囊通过均匀承压实现风险分散。
• 抗环境干扰能力强：气囊对潮汐、风力等外部因素适应性强，可减少突发外力对船体的影响。
  

4. 卓越的适用性与便利性

• 运输存储便捷：气囊放气后体积小巧、重量轻，可快速运输至不同场地，非常适合临时施工或偏远造船厂。
• 应用场景多样：适用于各种吨位船舶（从小型渔船到 5000 吨级驱逐舰）及复杂地形（如倾斜海岸线）。
  

5. 提高施工效率

• 快速部署：无需长期建造滑道或干船坞，气囊可在数小时内完成部署，缩短项目周期。例如，朝鲜事件中受损船体修复耗时约两周，而气囊部署仅需数小时。
• 可重复使用：气囊使用寿命长（高品质产品可重复使用 50 次以上），适合多次船舶下水。
  

案例对比：传统滑道 vs. 气囊下水

• 朝鲜驱逐舰事件（传统滑道）：滑板脱落导致船体失衡受损，修复耗时约两周。
• 气囊解决方案：若使用气囊，可通过压力控制实时调整姿态，避免结构损伤，修复时间可缩短至 2-3 天。
  

总结：

       青岛永泰长荣船用上排下水气囊凭借低成本、高安全性与强适应性，成为现代船舶下水的优选方案，适用于各类规模造船厂或应急修复场景。

其技术原理与排水管道堵水气囊（如大连案例中展现的密封性能与规格适应性）具有共通性，均体现了船舶上排下水气囊在工程领域的灵活应用。

青岛永泰长荣船舶用气囊上排下水技术，突破了传统修造船方式对固定下水滑道的依赖，其投资成本低、操作灵活、安全可靠且综合经济效益显著。这一技术广泛应用于各类船舶的上排下水作业，同时也能用于打捞沉船和搬动重物等工程。

△ 产品设计与结构

“青岛永泰长荣”品牌研发的新型整体缠绕船用高强度气囊，其结构包含囊体和端部铁件两部分。囊壁采用基体橡胶与增强纤维材料的复合硫化工艺制成，而端部铁件则由金属材料精制而成，与囊体紧密相连。气囊一端设计用于搬运时的牵引，另一端则用于充放气操作。此外，通过三通连接管，可方便地连接压力表、充放气阀以及充气软管接头。客户可根据需求选择配备的充气管路附件、压力表和阀门，或自行接通用标准的管路附件。

“青岛永泰长荣”船用气囊产品严格遵循CB/T3795-1996《船舶上排下水用气囊》的质量标准，凭借其卓越性能，在船舶行业中树立了良好的口碑。

• 强大的承载能力

• 卓越的抗揉压性

• 创新的端部抗暴设计

• 结构布局优化

• 耐久性强的抗老化与耐磨特性

• 优越的柔韧性与吸震效果

  
  

△ 服务与产品质量

在“永泰”人的眼中，服务的质量与产品的品质是相提并论的。他们致力于提供星级水准的售前和售后服务，借助现代化的信息技术管理，确保售前、售中及售后的全面、迅速、主动且及时的响应。通过不断提升核心竞争力，“永泰长荣”企业致力于构建一个现代化的生产服务系统，目标成为全球顶尖的船舶服务供应商。

英文原稿：

Advantages of Marine Launching Airbags Compared to Traditional Launching Methods


After more than 20 years using experience, most shipyard are very familiar with the NEW technologies of marine launching airbags, which can also used as salvage airbag and water-blocking airbags, but there still are some end-users being not confident with it. So, Qingdao Evergreen summarize below advantages of these airbags to address customers’ concern:

1. Significant Cost Savings
      • Low procurement and operational costs: Compared to constructing dry docks or purchasing large-scale lifting equipment, the purchase cost of airbags is considerably lower. Moreover, they eliminate the need for maintaining complex facilities over the long term, reducing capital investment by 30%-50%.

      • Easy maintenance: Only regular inspections of the airbag’s exterior, valves, and other components are required, eliminating the need for specialized maintenance equipment and drastically reducing labor and time costs.

2. High Operational Flexibility and Stability
      • Controllable buoyancy: By adjusting the air pressure inside the airbags, the buoyancy can be precisely controlled to support the ship’s weight, avoiding imbalances caused by uneven friction in traditional slipway launches (e.g., the detachment of skids leading to ship tilting, as seen in the North Korean destroyer incident).

      • Flexible attitude adjustment: The ship’s tilt angle can be controlled by gradually deflating or inflating the airbags, ensuring a smoother launching process. For instance, the “aft tilting” technique mentioned in the references leverages gravity for a natural water entry, minimizing mechanical intervention risks.


3. Substantial Reduction in Safety Risks
      • Avoidance of traditional accident risks: Traditional slipway launches are prone to accidents due to parallelism deviations in skids (e.g., the stern skid detaching first in the North Korean incident, causing hull damage) or sudden changes in friction coefficients. Airbags distribute risks evenly through uniform pressure bearing.

      • Strong resistance to environmental disturbances: Airbags adapt well to changes in tides, wind, and other external factors, reducing the impact of sudden forces on the hull.

4. Outstanding Applicability and Convenience
      • Easy transportation and storage: When deflated, airbags are compact and lightweight, enabling rapid transportation to different sites—ideal for temporary construction or remote shipyards.

      • Versatile application: Suitable for ships of various tonnages (from small fishing boats to 5,000-ton destroyers) and complex terrains (e.g., inclined shorelines).

5. Improved Construction Efficiency
      • Quick deployment: No need for prolonged construction of slipways or dry docks; airbags can be deployed within hours, shortening project timelines. For example, repairing the damaged hull in the North Korean incident took about two weeks, whereas airbag deployment would take only a few hours.

      • Reusability: Airbags have a long lifespan (high-quality products can be reused over 50 times), making them suitable for multiple ship launches.

Case Comparison: Traditional Slipway vs. Airbag Launching

  • North Korean Destroyer Incident (Traditional Slipway): Skid detachment caused hull imbalance and damage, requiring approximately two weeks for repairs.


  • Airbag Solution: If airbags had been used, real-time attitude adjustments via pressure control could have prevented structural damage, reducing repair time to 2-3 days.

Summary

Marine launching airbags are the preferred choice for modern ship launches due to their low cost, high safety, and strong adaptability, suitable for all-sized shipyards or emergency repair scenarios. Their technical principles share similarities with water-blocking airbags for drainage pipes (e.g., the sealing performance and specification adaptability demonstrated in the Dalian case), both reflecting the flexible application of inflatable tools in engineering fields.