Method and apparatus for seawater desalination by comprehensive utilization of solar energy

A technology of solar energy and solar heat collectors, which is applied to chemical instruments and methods, seawater treatment, energy wastewater treatment, etc., can solve the problems of high energy consumption and easy fouling of devices, and achieve simple cleaning and maintenance, high reliability, and structural simple effect

Inactive Publication Date: 2009-07-15
ZHEJIANG UNIV
View PDF0 Cites 33 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current seawater desalination process faces the technical pr

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for seawater desalination by comprehensive utilization of solar energy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] The present invention will be further described below in conjunction with drawings and embodiments.

[0023] As shown in the drawings, the present invention includes a solar heat collector 1, a bubbling evaporator 2, a gas distributor 3, an induced draft fan 4, a condensation regenerator 5, a heat exchange tube 6, an air pump 7, a solar panel 8, a main controller 9, salt water tank 10, fresh water tank 11, four electromagnetic valves 12 and three centrifugal pumps 13; the water inlet of solar collector 1 is connected to the water outlet of the first centrifugal pump 13, and the water outlet of solar collector 1 passes through the first A solenoid valve 12 and the water inlet of the first centrifugal pump 13 are connected to the bubbling evaporator 2 with the heat exchange tube 6, and the lower port of the bubbling evaporator 2 is divided into two paths, and the first path is connected to the salt water through the second centrifugal pump 13. The water tank 10, the secon...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method and a device for seawater desalination by comprehensively using solar energy. The device comprises a solar energy heat collector, a bubble evaporator, an air distributor, an induced fan, a condensing heat regenerator, a heat exchanging pipe, an air pump, a solar panel, a main controller, a salt water tank, a desalted water, four electromagnetic valves and three centrifugal pumps, wherein the solar energy heat collector absorbs the solar energy heating closed circulating water which enters the heat exchanging pipe to exchange heat with the seawater inside the bubble evaporator; wet gas is introduced into the bottom of the bubble evaporator by the air pump, the gas passes through high temperature seawater in the form of small bubbles from top to bottom through the air distributor, the temperature of air is increased, and the relative humidity is increased; the induced fan discharges high humidity air and forms negative pressure at the upper part of the liquid surface so that the partial pressure of the liquid phase is reduced; the high humidity air is discharged and enters the condensing heat regenerator to exchange heat with the low-temperature seawater, the water vapor forms desalted water after condensed, the air enters the bubble evaporator through the air pump, and the cold seawater absorbs the heat of the high humidity air and enters the bubble evaporator. The device has simple structure, saves energy and protects the environment.

Description

technical field [0001] The invention relates to a seawater desalination technology, in particular to a method and a device for comprehensively utilizing solar energy to desalinate seawater. Background technique [0002] Seawater contains a lot of water, but seawater is salt water and cannot be used directly. To obtain fresh water, desalination of sea water is necessary. The phenomenon of desalination of seawater in nature is carried out every day. Seawater evaporates under the sun, and the water vapor enters the atmosphere to condense and then falls to the ground in the form of rain and snow, forming natural fresh water. This is the most important source of fresh water available to humans. [0003] So far, there are dozens of artificial seawater desalination methods. However, at present, multi-stage flash evaporation, reverse osmosis, and multi-effect evaporation are mainly used in industry. Among them, the former two methods are dominant, and they account for more than...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C02F1/14C02F103/08
CPCY02A20/124Y02A20/142Y02A20/212Y02W10/37
Inventor 曾胜刘忠
Owner ZHEJIANG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap