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A waste heat utilization system of LNG fuel main engine for LNG fuel powered ships

A fuel and main engine technology, applied to combustion engines, internal combustion piston engines, engine components, etc., to achieve the effect of reducing operating costs and reducing capacity

Active Publication Date: 2016-06-01
BESTWAY MARINE & ENERGY TECH CO LTD
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  • Abstract
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Problems solved by technology

[0005] The present invention aims at the problems existing in the LNG gas supply system of the existing LNG fuel-powered ship using an electric heating ethylene glycol aqueous solution circulation system, and provides a waste heat utilization system of the LNG fuel main engine of the LNG fuel-powered ship

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  • A waste heat utilization system of LNG fuel main engine for LNG fuel powered ships
  • A waste heat utilization system of LNG fuel main engine for LNG fuel powered ships
  • A waste heat utilization system of LNG fuel main engine for LNG fuel powered ships

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Embodiment Construction

[0018] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0019] The waste heat utilization system of the LNG fuel main engine of the LNG fuel powered ship provided by the present invention can fully utilize the heat generated by cooling the LNG fuel main engine to heat the ethylene glycol aqueous solution.

[0020] When this system is applied to LNG fuel-powered ships, it is composed of an ethylene glycol aqueous solution circulation system 400 and an LNG fuel main engine cooling system 500. The ethylene glycol aqueous solution unit in the ethylene glycol aqueous solution circulation system 400 is connected in series to the LNG fuel main engine cooling system. In the system 500, it exchanges heat with the heat generated by the cooling main engine in the LNG fuel main engine cooling system.

[0021] se...

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Abstract

The invention discloses an LNG fuel main engine waste heat utilization system of an LNG fuel power ship. An ethylene glycol aqueous solution is heated by heat generated by cooling of an LNG fuel main engine. A traditional method that the ethylene glycol aqueous solution is electrically heated, waste heat of the main engine is fully used, and the problem of heating of the ethylene glycol aqueous solution is solved, so that the capacity of a ship power station is reduced, operation cost is reduced, energy is saved, environment is protected, and shortages of the method that the ethylene glycol aqueous solution is electrically heated are effective overcome.

Description

technical field [0001] The invention relates to the technical field of ship waste heat utilization, in particular to the technology of utilizing main engine waste heat in an LNG gas supply system of an LNG fuel-powered ship. Background technique [0002] As a new type of clean energy for ship power, LNG has developed rapidly in recent years. Compared with fuel oil, it has obvious advantages in operating costs and emission control, and is favored by the industry. [0003] LNG-powered ships are usually equipped with a certain volume of LNG storage tanks, and LNG is mainly stored in the LNG storage tanks in liquid form. The liquid LNG passes through the evaporator and heater, and is supplied to the main engine in gaseous form. Since the liquid LNG is -164°C, the gaseous LNG used by the main engine is usually between 0 and 60°C. It is impractical to heat such a large temperature difference only once. At present, most of them use ethylene glycol aqueous solution as the intermedi...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F02G5/00
CPCY02T10/12
Inventor 刘楠刘森林秦炳军冯志根
Owner BESTWAY MARINE & ENERGY TECH CO LTD
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