Cold-hot coupling tower type sea water desalination system utilizing ship waste heat and application method

Abstract

The invention discloses a cold-hot coupling tower type sea water desalination system utilizing ship waste heat and an application method, and belongs to the technical field of absorption refrigerationand sea water desalination. The cold and heat coupling tower type sea water desalination system utilizing the ship waste heat comprises an absorption refrigeration system and a tower type low-temperature multi-effect evaporation system. According to the system, heat of marine diesel engine exhaust and diesel cylinder sleeve cooling water is utilized in a gradient mode, normal-temperature seawateris treated into 7-DEG C saline water used for marine air conditioner refrigeration, and the electricity consumption of a ship is greatly reduced. According to the cold and hot coupling tower type seawater desalination system utilizing the ship waste heat, the tower type multi-effect evaporation device replaces an evaporator and a condenser in an absorption type refrigeration system, the sea water desalination device and the air conditioner refrigeration device are used in a coupled mode, the occupied area of the system device is reduced, and the ship space is saved. The problem that the low-temperature multi-effect evaporation temperature range cannot be expanded due to limitation of the temperature of cooling water of a condenser is solved.

Description

technical field [0001] The invention relates to a cold-heat coupling tower type seawater desalination system utilizing ship waste heat and an application method thereof, belonging to the technical field of absorption refrigeration and seawater desalination. Background technique [0002] With the rapid development of ship technology, the demand for fresh water and cooling capacity are also increasing. Marine desalination and air-conditioning devices have become important equipment to ensure the endurance of ships. A large amount of fresh water is consumed by the ship's power plant and the life of the crew, and the power consumption of the ship's air-conditioning device is close to half of the ship's power consumption. To generate enough fresh water and cooling capacity without increasing the load of the ship and the power consumption of the power machinery has become the development direction of improving the energy saving and economy of the ship. [0003] Most of the heat e...

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Problems solved by technology

[0008] (1) The existing marine absorption refrigeration device includes steam generator, condenser, evaporator and absorber, the system is complex and the equipment occupies a large space;

[0009] (2) The seawater desalination evaporation device is large in size, and the fresh water quality is easily affected by the stability of the hull;

[0010] (3) Seawater desalination and absorption refrigeration devices operate independently of each other, resulting in a lack of flexibility in the regulation of fresh water production and air conditioning cooling capacity, and the coupling of cooling and heating cogeneration devices cannot be realized to reduce the equipment footprint

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