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Seawater desalination process with efficient combined steam source

A technology combining steam and steam, applied in seawater treatment, energy wastewater treatment, chemical instruments and methods, etc., can solve problems such as high energy consumption, unfavorable rational utilization of resources, and restricting development, so as to reduce energy consumption and avoid energy storage , the effect of avoiding environmental pollution

Active Publication Date: 2018-09-18
石家庄国创蓝穹环保科技有限公司 +2
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  • Description
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  • Application Information

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Problems solved by technology

2) The total cost of water production in seawater desalination: Due to the lifespan of the membrane and the limitation of the membrane device, the membrane method is still at a disadvantage in the large-scale treatment of seawater
[0007] The current thermal desalination process is not conducive to the rational utilization of resources due to its high energy consumption, and requires a series of supporting facilities, which seriously restricts its development

Method used

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  • Seawater desalination process with efficient combined steam source

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Embodiment 1

[0031]The seawater desalination process with a high-efficiency combined steam source of the present invention includes a low-temperature multi-effect evaporation seawater desalination process and a concentrated brine multi-effect evaporation salt separation process. The steam sources of the seawater desalination process are solar steam boilers and fuel steam boilers, and the solar steam boilers and fuel steam boilers adjust the steam supply volume and steam supply ratio through steam regulating equipment.

[0032] The low-temperature multi-effect evaporation seawater desalination process of the present invention is that seawater is gradually concentrated after multi-effect evaporation to obtain concentrated brine containing impurity ions, then impurity ions such as calcium and magnesium are removed, and the softened concentrated brine enters the unitary salt extraction section. Put caustic soda powder into the concentrated brine containing impurity ions, fully react at room tem...

Embodiment 2

[0044] The seawater desalination process with a high-efficiency combined steam source of the present invention includes a low-temperature multi-effect evaporation seawater desalination process and a concentrated brine multi-effect evaporation salt separation process. The steam sources of the seawater desalination process are solar steam boilers and fuel steam boilers, and the solar steam boilers and fuel steam boilers adjust the steam supply volume and steam supply ratio through steam regulating equipment.

[0045] The low-temperature multi-effect evaporation seawater desalination process of the present invention is that seawater is gradually concentrated after multi-effect evaporation to obtain concentrated brine containing impurity ions, then impurity ions such as calcium and magnesium are removed, and the softened concentrated brine enters the unitary salt extraction section. Put caustic soda powder into the concentrated brine containing impurity ions, fully react at 30°C an...

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Abstract

The invention relates to a sea water desaltation technology with an efficient combined steam source. The steam source comprises a solar steam boiler and a fuel steam boiler, wherein steam supply quantities and steam supply proportions of the solar steam boiler and the fuel steam boiler are adjusted via steam adjusting equipment. The sea water desaltation technology comprises a low-temperature multiple-effect evaporation sea water desaltation step and a strong brine multiple-effect evaporation salt separation step. According to the technology, solar energy and conventional steam are combined to supply a heat source, and the multiple-effect evaporation sea water desaltation step and the strong brine multiple-effect evaporation salt separation step are combined organically to utilize heat rationally. As solar energy is utilized ingeniously, energy sources are greatly saved, and the environment-friendly pressure and the wastewater treatment cost are reduced.

Description

technical field [0001] The invention relates to the technical field of seawater desalination, in particular to a seawater desalination process with a high-efficiency combined steam source. Background technique [0002] my country is a country seriously short of water resources, with per capita water resources of 2,840 cubic meters, only 1 / 4 of the world average. Therefore, our country is a country seriously short of water. At the same time, the temporal and spatial distribution of fresh water resources in my country is extremely uneven, and water pollution has exacerbated the scarcity of fresh water resources available in my country. At the same time of resource water shortage, my country's rapid economic growth, large population and continuous improvement of urbanization level have made the gap of water resources more and more large, which has become a bottleneck hindering the sustainable development of our society. At present, the coverage of water shortage is almost all...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/10C02F103/08
CPCY02W10/37
Inventor 张继军
Owner 石家庄国创蓝穹环保科技有限公司
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