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A seawater desalination device

A seawater and freshwater technology, which is applied in seawater treatment, general water supply conservation, water/sewage treatment, etc., can solve the problems of high cost of freshwater, achieve the effect of realizing water production cost, realizing recycling, and accelerating temperature rise

Inactive Publication Date: 2015-07-08
周小光
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The invention provides a seawater desalination device, which solves the technical problem of high freshwater cost in the existing seawater desalination technology; by using solar energy, seawater desalination is realized through low-temperature and low-pressure boiling, and the cost of water production can be reduced to below 1 yuan / ton ( excluding depreciation of fixed assets), suitable for industrial promotion and application

Method used

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Embodiment Construction

[0038] The seawater desalination device proposed by the present invention is a low-temperature boiling tower, using solar energy as a heat source, using high thermal conductivity, high-pressure and vacuum-resistant materials as heat exchange plates for receiving solar energy, and using high-pressure-resistant and high-transparency glass or plexiglass and concrete bases Forming a closed space ensures that the working environment is a low pressure state. Depending on the vacuum unit, such as a vacuum pump, the feed seawater is sucked to the top of the low-temperature boiling tower, and at the same time, the temperature is raised to about 60° by absorbing solar energy, reaching the boiling point of seawater at a pressure of 0.2BAR (1BAR=0.98665 standard atmospheric pressure), so that the feed seawater A large amount of evaporation produces water vapor, and the heat emitted by the water vapor during the condensation process is further used to heat the feed seawater, which accelerat...

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Abstract

A seawater desalination device is disclosed. The seawater desalination device comprises a pedestal, a heat exchange plate, solar energy incidence glass, a vacuum unit and a seawater feeding pipeline. The pedestal is provided with an inclined surface. The edge of the inclined surface is provided with a protruded pedestal edge. The solar energy incidence glass is disposed above the inclined surface and the solar energy incidence glass and the pedestal edge are sealed, so that a sealed space is formed between the inclined surface and the solar energy incidence glass. The heat exchange plate is disposed between the solar energy incidence glass and the inclined surface. The lower end and two sides of the heat exchange plate and the pedestal edge are sealed. The upper end of the heat exchange plate is at a fixed distance from the pedestal edge. The lower end of the inclined surface is provided with a bleeding port. The vacuum unit is connected to the bleeding port to extract air in the sealed space. The seawater feeding pipeline is at the lower end of the inclined surface and is connected to a plurality of water diversion pipelines. Water outlets of the water diversion pipelines face towards the upper side of the lower end of the heat exchange plate. Seawater desalination is achieved by utilization of solar energy and by adopting a low-temperature low-pressure boiling manner. The water making cost can be lower than 1 yuan / ton.

Description

technical field [0001] The invention relates to the technical field of seawater desalination, in particular to a seawater desalination device which uses solar energy as a resource to perform low-pressure and low-temperature boiling to generate desalinated distilled water. 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. At present, the coverage of water shortage is almost all over the country, especially in the northern region, where the water shortage problem is quite serious. Water shortage has become a problem that plagues the production and development of industrial enterprises. [0003] Desalination of seawater is an effective technical means to solve the problem of water scarcity. Seawater desalination technology refers to a water treatment technology that obtains seawater and removes most of the salts in seawater to make the treated seawater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/14C02F103/08
CPCC02F1/14C02F2103/08Y02A20/124Y02A20/142Y02A20/212
Inventor 周小光
Owner 周小光
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