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Vacuum membrane distillation water-treatment plant utilizing solar energy

A technology of treatment device and vacuum membrane, applied in the fields of energy wastewater treatment, water/sewage treatment, heating water/sewage treatment, etc., can solve the problems of complicated operation, restricting the development of brackish water desalination industry, and high investment cost, and achieves the goal of eliminating High salt rate, small footprint, and the effect of continuous operation

Inactive Publication Date: 2010-07-07
SHANDONG SHENHUA SHANDA ENERGY ENVIRONMENTAL
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Generally large and medium-sized equipment, there are problems such as high investment cost and complicated operation, which greatly restricts the rapid development of brackish water desalination industry

Method used

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  • Vacuum membrane distillation water-treatment plant utilizing solar energy
  • Vacuum membrane distillation water-treatment plant utilizing solar energy

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Embodiment Construction

[0011] Below in conjunction with the schematic diagram of this embodiment, its structural features and working process will be described in detail.

[0012] The structural features of this embodiment are: raw water inlet pipe 1, circulating water pump 2, raw water distribution pipe 3, membrane module connecting pipe 9, membrane module 8, flange 6, raw water collecting pipe 5, and raw water outlet pipe 4 constitute a raw water circulation loop, The raw water inlet pipe 1 and the raw water outlet pipe 4 are respectively connected to the inlet and outlet of the solar collector, the raw water distribution pipe 3, the membrane module connecting pipe 9, the membrane module 8, the flange 6, and the raw water collecting pipe 5 are all installed in the distillation box 7, The housing of the distillation box has a double-layer structure, with heat-insulating material in the middle, and a hydrophobic membrane embedded in the membrane module 8 . The connecting pipe 10 communicates with th...

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Abstract

The invention provides a vacuum membrane distillation water-treatment plant utilizing solar energy or waste heat, which belongs to the field of water treatment. The vacuum membrane distillation water-treatment plant comprises a membrane module, a distillation box, a cooling cylinder, a vacuum pump, a control system and a circulating system. The invention uses a vacuum membrane distillation method which has the separation principle that hot raw water to be treated passes through one side of the separation membrane, and the other side is vacuumized so as to form transfer vapor pressure difference on the two sides of the membrane; and the vacuum side only generates water vapor, and the water vapor is condensed into drinking water, thereby separating and purifying the raw water. The invention utilizes cheap energy sources, such as solar energy, low-grade waste heat and afterheat, or the like, and can recycle latent heat of condensation, thereby reducing the energy consumption. The vacuum membrane distillation water-treatment plant has the advantages of simple structure, small occupied area, low cost, high desalination rate, large membrane flux and the like, and can be operated continuously and realize automatic control.

Description

technical field [0001] The invention belongs to the field of energy-saving and environment-friendly water treatment, in particular to a vacuum membrane distilled water treatment device utilizing solar energy. Background technique [0002] In some arid or island areas of our country, fresh water resources are very scarce, and at the same time there is a problem of insufficient electricity, which makes it very difficult to supply drinking water and domestic water. But these areas are very rich in solar energy resources. However, in some areas with rapid industrial development, due to insufficient attention to environmental protection, the amount of industrial wastewater discharge has increased, causing great pollution to drinking water sources. In addition, in some factories, such as steel and chemical enterprises, low-grade waste heat and waste heat have not been fully utilized, resulting in a great waste of energy. [0003] At present, the industrialized brackish water des...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/14C02F1/08
CPCY02A20/124Y02A20/142Y02A20/211Y02A20/212Y02W10/37
Inventor 甄洪声陈芳叶秋生宋德升
Owner SHANDONG SHENHUA SHANDA ENERGY ENVIRONMENTAL
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