Marine cold and heat cogeneration seawater desalting method and equipment

A seawater, cold and hot technology, applied in chemical instruments and methods, seawater treatment, frozen water/sewage treatment, etc., can solve problems such as technical inadequacy, consumption, high-grade electric energy, etc., and achieve system structure and energy utilization optimization , Simplify the system structure and reduce power consumption

Inactive Publication Date: 2012-01-18
JIMEI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

If the compression heat pump technology is used in this method, a large amount of high-grade electric energy will be consumed, so it is not technically desirable

Method used

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  • Marine cold and heat cogeneration seawater desalting method and equipment
  • Marine cold and heat cogeneration seawater desalting method and equipment
  • Marine cold and heat cogeneration seawater desalting method and equipment

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Experimental program
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Embodiment Construction

[0029] 1. Methods (such as figure 1 shown)

[0030] (1) Pre-cooling and pre-heating: There are two ways of feeding seawater, one way of feeding seawater is cooled by the precooler 11, and the other way of feeding seawater is successively passed through the absorber 22 of the absorption heat pump system 2 and the waste heat utilization of the ship power plant The circulating cooling water heat exchanger 44 of the system 4 performs two-stage preheating.

[0031] (2) Freezing and evaporation: After pre-cooling, seawater enters the evaporator 12 of the absorption heat pump system 2 and directly contacts the refrigerant to release heat and condenses into ice to form a slurry; after preheating, seawater enters the condenser 24 of the absorption heat pump system 2 and heats up The second effect evaporator 32, ..., and the nth effect evaporator 3n of the system 3 absorb heat and vaporize into water vapor.

[0032](3) Washing and condensation: the ice-containing slurry in the evapora...

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Abstract

The invention discloses marine seawater desalting method and equipment which couple a freezing method and a distilling method by utilizing an absorption type heat pump. The method comprises the steps of precooling-preheating, freezing-evaporating, washing-condensing, melting-condensing, and the like. According to the invention, because the novel cold and heat cogeneration seawater desalting method is realized by fully utilizing residual heat resources at different temperatures on a ship, the whole system is simple and feasible, is convenient for operation, can be used for optimally utilizing energy, has the characteristics of large desalted water output and high desalted water quality, is especially suitable for low-cost small-scale production on the ship and can be widely applied to the field of seawater desalting.

Description

technical field [0001] The invention belongs to the technical field of seawater desalination, and in particular relates to a method and equipment for seawater desalination of marine combined cooling and heating (freezing method and distillation method are coupled). Background technique [0002] As we all know, all kinds of engineering ships and fishing boats need to be equipped with seawater desalination equipment to meet the needs of the operation of marine power equipment and the living needs of crew and passengers. Researching marine seawater desalination technology and forming its own intellectual property rights are of great significance for improving the technological competitiveness of the shipbuilding industry, promoting the sound and rapid development of the shipbuilding industry, marine transportation industry and marine fishery production, and promoting the development and utilization of island resources. . Currently, seawater desalination methods mainly include ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/16C02F1/22C02F103/08
CPCY02A20/124
Inventor 陈志强何宏舟蔡佳莹
Owner JIMEI UNIV
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