LNG CARGO CONTAINMENT FOR GAS LEAKAGE INSPECTION DEVICE USE BALLOON WITH GAS REACTION MATTER AND ITS METHOD, AND THIS INCLUDES THE LNG CARRIER OR LNG OFFSHORE PLATFORM

摘要

The present invention relates to an apparatus and a method to check a gas leakage of an LNG cargo tank using an air bouncer and a gas reacting substance, and an LNG carrier or an LNG offshore platform comprising the same configured to conveniently check for gas leakage of the LNG cargo tank using a minimum number of personnel by closely adhering a transparent air bouncer with a gas reacting substance applied on an outside wall surface in the LNG cargo tank without a gap while inserting the air bouncer into the LNG cargo tank. To achieve the above purpose, the apparatus and method to check for gas leakage of an LNG cargo tank is configured in a method such that an air bouncer (2000) which is de-aired is inserted through a gas dome (110) of the LNG cargo tank (100), and then the air bouncer (200) installed in the LNG cargo tank (100) by adhering the air bouncer (200) to an inner wall surface of the LNG cargo tank (100); a gas reacting substance (300) applied to the outside of the air bouncer (200); and gas leakage checked by injecting a reacting gas in the LNG cargo tank (100) with the air bouncer (200) installed.