Thermoelectric power generating module, and thermoelectric power generating device, anti-freezing vaporizer, and vaporized fuel gas liquefaction process device including same

Abstract

Disclosed are a thermoelectric power generating module, and a thermoelectric power generating device, an anti-freezing vaporizer, and a vaporized fuel gas liquefaction process device including the same. A thermoelectric power generating module according to an embodiment of the present invention may comprise: a pipe through which fluid flows; and a thermoelectric power generating unit which surrounds the pipe and generates electric power by a temperature difference between the fluid and air outside the pipe.

Description

technical field [0001] The invention relates to a thermoelectric power generation module, including its thermoelectric power generation device, anti-icing gasification device and gasification fuel gas liquefaction engineering device. Background technique [0002] As the International Maritime Organization (IMO) tightens restrictions on the emission of greenhouse gases and various air pollutants, the shipbuilding and shipping industries are increasingly using clean energy natural gas as fuel gas for ships, replacing traditional fuels such as heavy oil and diesel. [0003] The main component of natural gas (Natural Gas), an important resource widely used in fuel gas, is coal (methane). In order to facilitate storage and transportation, natural gas is usually cooled to -162°C and compressed to 1 / 600 to make the phase change It manages and applies liquefied natural gas (Liquefied Natural Gas), an extremely low-temperature liquid that is transparent. [0004] LNG is stored in he...

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Problems solved by technology

[0006] However, the existing problem is that due to the temperature difference between the liquefied fuel gas and seawater, the surface of the liquefied fuel gas delivery pipe adjacent to the water diversion part of the vaporizer freezes, and the heat exchange between the delivery pipe and seawater cannot be completed smoothly due to icing , which degrades the performance of the gasifier

[0007] Another problem is that when the liquefied fuel gas is stored in the storage tank, the external heat is continuously transmitted to the storage tank, and the vapor generated after the liquefied fuel gas is vaporized accumulates inside the storage tank.

This vapor increases the pressure inside the storage tank, which can lead to deformation and damage of the storage tank. In the process of transporting liquefied fuel gas, it will cause structural problems of the storage tank and the ship due to vibration.

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