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Solar energy-hot spring-heat pump coupled multistage membrane distilled water treatment system and method

A technology of heat pump system and treatment system, which is applied in the field of solar-hot spring-heat pump coupling multi-stage membrane distilled water treatment system, can solve the problems of energy consumption and large energy consumption, and achieve the effects of convenient operation, simple equipment and cost saving

Active Publication Date: 2021-06-08
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the membrane distillation process needs to be driven by energy, especially for a large amount of water desalination, more energy is required; currently there is a heat pump system for desalination of seawater and brackish water, but it still consumes a lot of energy. It is difficult to meet the requirements of improving the economic benefits of the membrane distillation system under the premise of meeting energy conservation and environmental protection

Method used

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  • Solar energy-hot spring-heat pump coupled multistage membrane distilled water treatment system and method
  • Solar energy-hot spring-heat pump coupled multistage membrane distilled water treatment system and method

Examples

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Embodiment 1

[0040] In a typical implementation of the present disclosure, such as Figure 1-Figure 2As shown, a solar-hot spring-heat pump coupled multi-stage membrane distilled water treatment system is proposed.

[0041] In order to achieve the purpose of purifying hot spring and brackish water with high recovery rate and treating it as drinking water, the hot spring and brackish water are purified by coupling the membrane distillation system with geothermal heat and heat pump. At the same time, in order to achieve energy saving and environmental protection while improving the economy of the system, the solar heat collection and heat exchange system is used to heat the recirculated hot material liquid, and the solar photovoltaic panel is used to assist the power grid to provide electricity for the membrane distillation system.

[0042] In this embodiment, a solar-hot spring-heat pump coupled multi-stage membrane distillation brackish water treatment system with heat recovery and post-pr...

Embodiment 2

[0084] In another typical embodiment of the present disclosure, as shown in the figure, a solar-hot spring-heat pump coupled multi-stage membrane distilled water treatment method is proposed, using the solar-hot spring-heat pump coupled multi-stage membrane distilled water treatment as described in Example 1 system.

[0085] It mainly includes the following steps:

[0086] The hot spring and brackish water heat pump system uses solar energy and power supply system to further heat the hot spring and brackish water through compressors and condensers;

[0087] The multi-stage membrane distillation and solar energy recuperation system utilizes the vapor pressure difference between the hot liquid side and the cold side to drive the distillation process to purify hot springs and brackish water, and uses solar heat exchangers to heat the recirculated liquid on the hot side;

[0088] Membrane distillation feed liquid pre-treatment system, through nanofiltration and other measures to ...

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Abstract

The invention provides a solar energy-hot spring-heat pump coupled multistage membrane distilled water treatment system and method, and relates to the technical field of membrane distilled water purification, the system comprises: a raw material water heat pump system configured to preheat obtained hot spring water and / or brackish water through the heat pump system; a multi-stage membrane distillation system configured to obtain the preheated thermal spring water and / or brackish water for membrane distillation, and use a heat pump system for condensing the cold side of a membrane assembly; a heat regeneration system configured to obtain feed liquid on the hot side of the membrane assembly after membrane distillation, heat the feed liquid and input the feed liquid into the multi-stage membrane distillation system again; and a distillation post-treatment system configured to treat and process condensate water and high-concentration feed liquid wastewater after membrane distillation and then output a product. Solar energy, hot spring terrestrial heat and the heat pump are coupled to drive a membrane distillation system so that the purposes of economically and energy-saving purifying and treating hot spring and brackish water into drinking water with high recovery efficiency are achieved.

Description

technical field [0001] The disclosure relates to the technical field of membrane distilled water purification, in particular to a solar-hot spring-heat pump coupled multi-stage membrane distilled water treatment system and method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] The shortage of fresh water resources has become one of the serious problems in the world. Residents in the north, northwest, and east of China face the problem of brackish water and high-fluorine water. Brackish water mainly exists in the form of surface water and groundwater, and its total dissolved solids (TDS) content is generally between 1,000 and 10,000 mg / L. Because of its high salt content, it is not suitable for direct drinking. Drinking brackish water directly can cause diarrhea, skin allergies, kidney stones, dental fluorosis, and even poisoning. [...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/04C02F1/14
CPCC02F1/14C02F1/04Y02A20/212Y02A20/211
Inventor 韩吉田朱晓璇朱万超陈常念邵莉葛艺
Owner SHANDONG UNIV
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