LNG receiving station cold energy power generation system

Abstract

The invention discloses an LNG receiving station cold energy power generation system which comprises an LNG conveying system, a seawater conveying system, an immersion combustion type gasifier flue gas conveying system, a condenser (201), a circulation working medium pump (202), a flue gas evaporator (203), a seawater evaporator (205) and an expansion machine (204). A working medium outlet of the condenser communicates with an inlet of the circulation working medium pump. An outlet of the circulation working medium pump communicates with a working medium inlet of the seawater evaporator. A working medium outlet of the seawater evaporator communicates with an inlet of the expansion machine. The outlet of the circulation working medium pump further communicates with a working medium inlet of the flue gas evaporator. A working medium outlet of the flue gas evaporator communicates with the inlet of the expansion machine. An outlet of the expansion machine communicates with a working medium inlet of the condenser. Combustion flue gas products of an immersion combustion type gasifier are used as a heat source to be introduced into the LNG receiving station cold energy power generation system, the problem of heat source shortage caused when the temperature of a seawater heat source is low in winter can be remedied, and continuity and stability of cold energy power generation are guaranteed.

Description

technical field [0001] The present invention relates to the field of cold energy power generation at a liquefied natural gas (LNG) receiving station, in particular to a cold energy power generation system at an LNG receiving station that utilizes the waste heat of flue gas from a submerged combustion gasifier (SCV) at the LNG receiving station, and also relates to a A cold energy power generation system for an LNG receiving station that jointly utilizes flue gas and seawater waste heat. Background technique [0002] LNG is a high-quality energy source with the characteristics of high calorific value and low combustion pollution. The main function of the LNG receiving station is to receive LNG transported by ocean-going carriers, store and gasify it to obtain gaseous natural gas (NG) products, and supply gas to urban residents and / or industrial users through the natural gas pipeline network. [0003] LNG is natural gas that exists in liquid form at a low temperature of about...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a cold energy power generation system of an LNG receiving station, which can overcome the problem of low temperature of seawater heat sources in winter and ensure the continuity and stability of cold energy power generation

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