A Marine Seawater Desalination System Based on Diesel Engine Waste Heat Recovery

Abstract

The invention relates to a marine seawater desalination system based on diesel engine waste heat recovery. The system comprises a diesel engine waste heat recovery system, a distillation system, a fresh water collection system and a vacuum system, wherein the diesel engine waste heat recovery system comprises a flue gas waste heat recovery system and a cylinder jacket cooling water waste heat recovery system; the flue gas waste heat recovery system is connected with the distillation system and the vacuum system respectively; the cylinder jacket cooling water waste heat recovery system is connected with the distillation system; and the distillation system is connected with the fresh water collection system. The marine seawater desalination system provided by the invention is simple in structure and convenient in operation, and can make use of the diesel engine waste heat to the maximum extent at the same time, the water yield is far greater than that of a seawater desalination device which only uses the waste heat of cylinder cooling water or flue gas, so that the fresh water requirements of corresponding ships can be met; moreover, the problem of scale formation generated by directly taking the flue gas as a evaporation heat source can be avoided.

Description

technical field

[0001] The invention relates to a seawater desalination device, in particular to a marine seawater desalination system based on diesel engine waste heat recovery. Background technique

[0002] As an independent unit, the crew and equipment need to consume a lot of fresh water when the ship is performing tasks or fishing far from the base, and for steam-powered ships, the fresh water consumption is even greater. According to statistics: the drinking water required per person per day is about 2L, and the washing water is about 150L; the water consumption of diesel engines is 0.2-0.3L / kW; the supplementary water of the steam power system is about 1-1.5% of the steam consumption. It can be seen from this that for a ship with a staff of 200, the fresh water demand of the crew is 30-40 tons per day, and the water consumption of mechanical equipment is even greater, including cooling water for diesel generators, high-pressure air compressors and other equipment, and...

Examples

Embodiment Construction

[0021] In order to better illustrate the present invention, further description will be given below in conjunction with the accompanying drawings.

[0022] A marine seawater desalination system based on diesel engine waste heat recovery of the present invention includes a diesel engine waste heat recovery system, a distillation system, a fresh water collection system and a vacuum system.

[0023] The diesel engine waste heat recovery system includes a flue gas waste heat recovery system and a cylinder liner cooling water waste heat recovery system. The flue gas waste heat recovery system is respectively connected with the distillation system and the vacuum system; the cylinder jacket cooling water waste heat recovery system is connected with the distillation system; the distillation system is connected with the fresh water collection system. The flue gas waste heat recovery system includes a hot water pool 4; one end of the hot water pool 4 is connected to the diesel engine fl...

technical field

[0001] The invention relates to a seawater desalination device, in particular to a marine seawater desalination system based on diesel engine waste heat recovery. Background technique

[0002] As an independent unit, the crew and equipment need to consume a lot of fresh water when the ship is performing tasks or fishing far from the base, and for steam-powered ships, the fresh water consumption is even greater. According to statistics: the drinking water required per person per day is about 2L, and the washing water is about 150L; the water consumption of diesel engines is 0.2-0.3L / kW; the supplementary water of the steam power system is about 1-1.5% of the steam consumption. It can be seen from this that for a ship with a staff of 200, the fresh water demand of the crew is 30-40 tons per day, and the water consumption of mechanical equipment is even greater, including cooling water for diesel generators, high-pressure air compressors and other equipment, and...

Examples

Embodiment Construction

[0021] In order to better illustrate the present invention, further description will be given below in conjunction with the accompanying drawings.

[0022] A marine seawater desalination system based on diesel engine waste heat recovery of the present invention includes a diesel engine waste heat recovery system, a distillation system, a fresh water collection system and a vacuum system.

[0023] The diesel engine waste heat recovery system includes a flue gas waste heat recovery system and a cylinder liner cooling water waste heat recovery system. The flue gas waste heat recovery system is respectively connected with the distillation system and the vacuum system; the cylinder jacket cooling water waste heat recovery system is connected with the distillation system; the distillation system is connected with the fresh water collection system. The flue gas waste heat recovery system includes a hot water pool 4; one end of the hot water pool 4 is connected to the diesel engine fl...

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