LNG STORAGE TANK

摘要

PURPOSE: An LNG storage tank is provided to reduce a gap between connecting board units and improve airtightness of LNG because auxiliary secondary barriers of the connecting board unit are overlapped. CONSTITUTION: An LNG storage tank comprises multiple insulation boards(100) and connecting board units(200). The insulation board comprises lower insulation boards(110), main secondary barriers(120), and upper insulation boards(130). The lower insulation boards are fixed in an inner hull. The main secondary barriers are attached in the lower insulation boards. The upper insulation boards are attached in the main secondary barriers. The connecting board units comprise auxiliary barriers(210) and connecting boards(220). The auxiliary secondary barriers are attached in the main secondary barriers and the connecting boards are attached in the auxiliary secondary barriers. The connecting board and the auxiliary barrier of the connecting board units are attached in the main secondary barrier to be integrated between the upper insulation boards.