Technology for hoisting LNG liquefied gas transport ship liquid tanks to hold

Abstract

The invention relates to a technology for hoisting LNG liquefied gas transport ship liquid tanks to a hold. The hoisting technology can hoist a first liquid tank and a second liquid tank successivelyafter parts on a hull are closed to form a whole body. The hoisting technology includes the following steps: (1) performing preparation; (2) cleaning a surface of the first liquid tank; (3) trying hoisting the first liquid tank; (4) horizontally putting the first liquid tank to a guide device; (5) putting the first liquid tank in a saddle and pressing a die; (6) pouring epoxy resin to the saddleand a wood block; (7) finishing the operation; and (8) preparing to hoist the second liquid tank. The advantages of the invention are that the hoisting difficulty is lowered, and the positioning precision of liquid tank hoisting and the hoisting efficiency can be improved; the whole hoisting technology optimizes tool use and labor arrangement during a transport ship liquid tank hoisting process; the safety can be ensured; and safe and reliable operation for hoisting the liquid tanks to the hold can be ensured.

Description

technical field [0001] The invention belongs to an LNG tank body, and in particular relates to a process for hoisting a liquid tank into a cargo compartment of an LNG liquefied gas carrier. Background technique [0002] The main function of the LNG receiving station is to store liquid LNG and gasify LNG into natural gas for delivery to users. It generally consists of four main process systems: LNG unloading, storage, boil-off gas treatment, and LNG regasification. [0003] LNG storage tank is the core equipment in the LNG storage process system, which has the characteristics of high technical difficulty, long construction period (2-3 years), and high project investment (accounting for about 30% of the direct cost of the receiving station). According to the application practice of large-scale LNG liquefied gas carrier liquid tanks in my country, the main tanks are full-containment tanks with double-hull suspended ceilings. The inner and outer tanks can carry cold liquid. Unde...

AI Technical Summary

Problems solved by technology

[0004] During the hoisting process of the liquid tank entering the cargo compartment of the LNG liquefied gas carrier, under severe conditions such as strong winds, the liquid tank is prone to shake when hoisting the liquid tank. The traditional hoisting process of the liquid tank entering the cargo compartment of the LNG liquefied gas carrier lacks correct The steps of guiding and positioning the liquid tank are difficult to control, the positioning accuracy is relatively rough, and the difficulty of hoisting is increased. In addition, the epoxy effect of the liquid tank saddle is poor during the epoxy pouring process, and the epoxy pouring time is long, which delays the entire liquefaction Hoisting Technology of Liquid Tanks Entering Cargo Holds of Gas Carriers

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