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Waste heat utilization seawater desalting system

A waste heat and seawater technology, applied in seawater treatment, general water supply conservation, heating water/sewage treatment, etc., can solve problems such as waste, dependence, shipbuilding benefit discount, etc., and achieve reduced energy consumption, good anti-scaling effect, and high water quality high effect

Active Publication Date: 2019-09-10
JINSHENG OCEAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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 marine power equipment operation and crew and passenger life; at present, most large ocean-going ships use seawater desalination to replenish water; my country has become a major shipbuilding country in the world, but high efficiency China's marine water generators still rely on imports. my country currently lacks the ability to design and manufacture independent seawater desalination devices, which is not compatible with my country's status as a major shipbuilding country. It also greatly reduces the profit margins of my country's shipbuilding industry and greatly reduces the benefits of my country's shipbuilding. ; and the ship itself has many low-grade heat sources that have not been effectively utilized, such as the cooling heat of the diesel engine cylinder liner, the intermediate cooling heat of the pressurized air system, and the waste heat of the flue gas. Waste; recovery of ship exhaust gas heat is an important way for power plant to save energy, and the recovered waste heat can be used in exhaust gas boiler power generation, seawater desalination, fuel tank heating and air conditioning, etc.

Method used

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  • Waste heat utilization seawater desalting system
  • Waste heat utilization seawater desalting system
  • Waste heat utilization seawater desalting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 and figure 2 The shown waste heat utilization seawater desalination system includes a multistage flash seawater desalination device and a waste heat utilization mechanism connected with the multistage flash seawater desalination device; the multistage flash seawater desalination device consists of a plurality of flash Each of the flash chambers 1 is connected to a vacuum pumping mechanism through an air extraction line 2; the inside of the flash chamber 1 is separated from a condensation chamber 11 and an evaporation chamber 12 by a water storage tray 3, and each A condenser 4 is respectively installed in a condensation chamber 11; the condenser 4 of the adjacent flash chamber 1 is connected through a seawater pipe 5; the seawater pipe 5 connected to the condenser 4 of the end flash chamber 1 is connected to the seawater pump 6 Its water outlet is connected; the seawater pipe 5 connected to the condenser 4 of the flash chamber 1 at the head end is con...

Embodiment 2

[0026] Such as image 3 The shown waste heat utilization seawater desalination system has basically the same structure as that of Embodiment 1, wherein the other end of the heating inlet pipe 33 of the next stage extends to the outside of the flash chamber 1, and is connected to the evaporation chamber 1 of the previous stage. Condensation chamber 11 is connected.

[0027] The waste heat utilization seawater desalination system of the present invention adopts multi-stage flash evaporation technology to desalinate seawater, has high reliability, high water quality, and good anti-scaling effect; and utilizes the waste heat of exhaust gas discharged from the tail of the diesel engine and the cylinder liner of the diesel engine The waste heat of the cooling water together provides heat support for the multi-stage flash seawater desalination device, which is energy-saving and environmentally friendly, and reduces the energy consumption of seawater desalination; in addition, the was...

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Abstract

The invention discloses a waste heat utilization seawater desalting system which comprises a multistage flash evaporation seawater desalting device and a waste heat utilization mechanism, wherein thewaste heat utilization mechanism is connected with the multistage flash evaporation seawater desalting device; the waste heat utilization mechanism consists of a flue gas waste heat utilization unit which adopts waste gas heat discharged from the tail of a diesel oil engine as a heat source, and a hot water waste heat utilization unit which adopts waste heat of cooling water of a diesel oil enginecylinder liner as a heat source; and a liquid inlet three-way valve and a liquid outlet three-way valve are respectively mounted on a seawater tube which is connected with a condenser of a flash evaporation chamber at a head end and a preheating pipeline. By adopting the waste heat utilization seawater desalting system disclosed by the invention, the waste gas heat discharged from the tail of thediesel oil engine and the waste heat of the cooling water of the diesel oil engine cylinder liner are adopted to provide heat supply support to the multistage flash evaporation seawater desalting device, so that purposes of energy conservation and environment protection are achieved, and the energy consumption of seawater desalting can be reduced.

Description

technical field [0001] The invention relates to a seawater desalination system utilizing waste heat, and belongs to the technical field of seawater desalination. 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 marine power equipment operation and crew and passenger life; at present, most large ocean-going ships use seawater desalination to replenish water; my country has become a major shipbuilding country in the world, but high efficiency China's marine water generators still rely on imports. my country currently lacks the ability to design and manufacture independent seawater desalination devices, which is not compatible with my country's status as a major shipbuilding country. It also greatly reduces the profit margins of my country's shipbuilding industry and greatly reduces the benefits of my country's shipbuilding. ; and the ship itself has many lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/06C02F1/16C02F103/08
CPCC02F1/06C02F1/16C02F2103/08C02F2301/08Y02A20/124
Inventor 张小飞张大腾张卫忠
Owner JINSHENG OCEAN TECH CO LTD