A small solar desalination device with forward osmosis coupling distillation

A technology of solar energy and forward osmosis, applied in seawater treatment, energy wastewater treatment, general water supply conservation, etc., can solve the problems of environmental pollution of concentrated seawater, limit the concentration of concentrated seawater discharge, and difficulty in recycling, etc., so as to prolong the life of the device and omit water pumps Structure, the effect of saving pump power

Active Publication Date: 2019-04-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the distillation seawater desalination technology, the corrosion and scaling of seawater limit the discharge concentration of concentrated seawater. At the same time, the discharge of concentrated seawater will cause environmental pollution and be difficult to recycle.

Method used

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  • A small solar desalination device with forward osmosis coupling distillation
  • A small solar desalination device with forward osmosis coupling distillation
  • A small solar desalination device with forward osmosis coupling distillation

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Embodiment Construction

[0038] The present invention will be further elaborated and illustrated below in conjunction with the accompanying drawings and embodiments.

[0039] Such as Figure 1~6 As shown, the small-scale solar seawater desalination device with forward osmosis coupling distillation in this embodiment is composed of a solar heat collection and exhaust component 101 , a forward osmosis water drawing component 102 and a condensation water storage tank 103 .

[0040] The solar heat collection and exhaust component 101 is composed of a solar vacuum tube 201 and an exhaust tube 202; the exhaust tube 202 is placed in the solar vacuum tube 201, and the space formed by the clamping of the two is used to fill the drawing liquid, and the top of the exhaust tube 202 is connected with the solar energy. The head spaces of the vacuum tubes 201 communicate with each other. During operation, the drawing liquid filled between the solar vacuum tube 201 and the exhaust tube 202 is evaporated.

[0041] T...

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Abstract

The invention discloses a small forward osmosis coupling distillation solar sea water desalting device which comprises a hollow solar heat collecting tube, an exhaust pipe, a forward osmosis drawing cavity and a condensation water storage tank, wherein the tops of the solar heat collecting tube are closed; the exhaust pipe is mounted in a hollow cavity of the solar heat collecting tube, draw solution heating and evaporating space is formed between the solar heat collecting tube and the exhaust pipe in a clamped manner, a vent hole communicated with a solar vacuum tube is formed in the top of the exhaust pipe; the forward osmosis drawing cavity is positioned below the solar heat collecting tube and communicated with the draw solution heating and evaporating space, at least one membrane mounting hole is formed in the surface of the forward osmosis drawing cavity and provided with forward osmosis membranes; the condensation water storage tank is communicated with the exhaust pipe and used for collecting and condensing water vapor. The device is long in service life and environmentally friendly, automatically draws water, a water pump structure is omitted, and pump power is saved, so that the device is smaller.

Description

technical field [0001] The invention relates to the technical field of seawater desalination, in particular to a small-scale solar seawater desalination device with forward osmosis coupled distillation. Background technique [0002] The development of seawater desalination technology is one of the effective ways to solve the shortage of water resources in coastal areas. Currently common seawater desalination technologies can be divided into three categories: distillation, freezing, and reverse osmosis. Reverse osmosis and distillation are the two most widely used seawater desalination technologies. The reverse osmosis method is suitable for industrial large-scale seawater desalination, but the raw water needs to be treated to prevent membrane fouling. The discharge of concentrated seawater by the reverse osmosis method will cause environmental pollution and be difficult to recycle, which brings great troubles to various enterprises. Distillation seawater desalination techn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/10C02F103/08
CPCY02A20/131Y02W10/37
Inventor 张靖鹏王彬李扬王勤金洪明沃崇娜金健安
Owner ZHEJIANG UNIV
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