Arrangement system and air supply arrangement system of lng gas storage tank for dual-fuel propulsion ships

Abstract

The invention relates to the technical field of water communication and transportation equipment manufacturing, and discloses an LNG (Liquefied Natural Gas) storage tank arrangement system and a gas supply arrangement system of a double-fuel power-propelled ship. The LNG storage tank arrangement system comprises an LNG storage tank arranged on the stern portion of the ship, an engine casing and a chimney inside the stern portion are arranged on the right side of a ship body, a smoke exhaust pipe inside the engine casing is arranged on the rear portion, a ventilation pipe is arranged on the right side, a stairway is arranged on the front portion of the smoke exhaust pipe, a free fall lifeboat is positioned on the back face of the chimney at the right side of the ship body, an accommodation is arranged in the front of the LNG storage tank and the chimney and integrally moves towards the stem portion, and a refrigeration house and a dry provision room move to the larboard from the starboard. An LNG supply pipe comprises a high-pressure pipeline and a low-pressure pipeline, a gas supply chamber and the LNG storage tank are of an integral structure, and the integral structure is positioned on an additional deck at the stern portion; LNG filling stations are respectively arranged on the larboard and the starboard of the accommodation. The LNG storage tank arrangement system and the gas supply arrangement system of the double-fuel power-propelled ship solve the arrangement problems of the LNG storage tank and the gas supply system on a bulk cargo ship, realizes the purpose that LNG is applied to the bulk cargo ship as fuel, and effectively reduces pollutants discharged by the ship.

Description

technical field [0001] The invention relates to the technical field of water transportation equipment manufacturing, in particular to an LNG gas storage tank arrangement system and an air supply arrangement system for a dual-fuel power propulsion ship. Background technique [0002] Most of the power plants of ships now use heavy fuel oil as fuel. However, with the introduction and entry into force of the International Maritime Organization and various governments' regulations on ship emission control, heavy fuel oil can no longer meet the emission requirements of these regulations. It is necessary to adopt new technologies to meet the requirements of these regulations. Currently, there are three feasible options, 1. low-sulfur fuel oil, 2. installing a sulfur scrubber, and 3. using LNG as fuel. The cost of using the first two schemes for ship owners is high, and the third scheme is currently the most promising scheme. [0003] LNG is the English abbreviation for liquefied...

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