Abstract:
A horizontal generally cylindrical tank (2) for transportation of liquefied gases at low temperature in a ship is supported in two saddle supports (12) in the ship (1). At each support, the tank has internal reinforcements comprising two adjacent perforated bulkheads (3) and a framework of crossing girders/stiffeners (4-7) welded between the bulkheads (3), thus providing a tank (2) with sufficient strength for a capacity in the range of at least 40.000 - 60.000 m 3 . A method for securing accurate roundness of the tank in the support area is also described.
Abstract translation:在船舶(1)中的两个鞍形支撑件(12)中支撑有用于在船舶中低温运输液化气体的水平大致圆柱形的罐(2)。 在每个支撑件处,罐具有包括两个相邻的穿孔隔板(3)和焊接在舱壁(3)之间的交叉梁/加强件(4-7)的框架的内部加强件,从而为罐(2)提供足够的强度 容量在至少40.000 - 60.000 m 3范围内。 还描述了用于确保罐在支撑区域中的精确圆度的方法。
Abstract:
An arrangement for supporting a bi-lobe tank (3) in a seagoing vessel (1), the tank (3) having first and second equal and partially cylindrical shells built into each other at a common divisional section. The shells are each having a vertical central plane (10, 11), and the arrangement comprises a cradle support (6) lined with a load carrying layer (8) of thermally insulating material. The shells are without direct contact with the cradle support (6) or its load carrying layer (8) in the area between the vertical central planes (10, 11) of the shells. Instead, a separate support (12, 13) or external reinforcement (16, 17) for the shells is arranged in said area.
Abstract:
An arrangement for providing liquefied natural gas (LNG) as fuel for propulsion of a ship (1, 6) having cargo tanks (2, 7) for liquefied gas comprises a source of LNG (3, 8) and at least one first heat exchanger (41) for vaporizing and/or heating the LNG directly or indirectly with a warmer medium (44). The warmer medium is boil-off gases from the cargo tanks (2, 7) being re-liquefied in the process.