Combined cooling, heating and power composite system based on ammonia energy ship and power supply method

Abstract

The invention provides a combined cooling, heating and power composite system based on an ammonia energy ship. The combined cooling, heating and power composite system comprises a hydrogen productionsystem, a ship power supply system and a cooling, heating and heat exchange circulating system. The hydrogen production system comprises a marine liquid ammonia storage tank, a flow regulating valve bank, a gasifier, a pressure regulating valve bank, a drying filter, an ammonia preheater, an electric heater, an ammonia catalytic decomposition hydrogen separation unit, a hydrogen purifier, a hydrogen cooler and a hydrogen pressure flow control valve bank which are communicated in sequence; the ship power supply system comprises a hydrogen-air fuel cell, a motor propeller and a storage battery.The cooling, heating and heat exchange circulating system comprises a waste heat boiler and a secondary refrigerant pump; the waste heat boiler is used for generating saturated steam to meet the heatrequirements of ship auxiliary machines and passenger cabins. The secondary refrigerant pump is used for cooling the ship equipment and supplying related cooling capacity to the ship. The problem thata large amount of energy is consumed due to the fact that an existing hydrogen production-hydrogen storage technology cuts off the hydrogen production technology and the hydrogen storage technology is solved.

Description

technical field [0001] The present invention relates to the field of cogeneration of cooling, heating and power in liquid ammonia energy systems, and specifically relates to an ammonia energy ship cooling and heating system that uses liquid ammonia to carry hydrogen, catalyzes hydrogen production, generates electricity with fuel cells, and recycles cold and heat energy in the process Electric triple power supply composite system and power supply method. Background technique [0002] From 2020, the International Maritime Organization requires the world's shipping industry to implement a global sulfur emission limit of less than 0.5%, and before 2050, it is necessary to reduce marine carbon emissions by more than half. This is a big challenge for most of the shipping industries that currently use heavy fuel oil that emits sulfur and particulate matter. Environmental pollution and climate warming have brought enormous pressure to the marine environment. Therefore, optimizing e...

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Problems solved by technology

[0005] According to the above-mentioned existing hydrogen production-hydrogen storage technology, the hydrogen production and hydrogen storage technology are separated to cause a large amount of energy consumption, and a combined cooling, heating and power supply system and power supply method based on ammonia energy ships are provided.

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