Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multiple-effect distillation device and method for desalting sea water or brackish water only by using solar

A multi-effect distillation and brackish water technology, which is applied in chemical instruments and methods, seawater treatment, water/sewage treatment, etc., can solve the problems of easy blockage of spray devices, long process, and large power consumption, so as to avoid heat transfer Tube fouling, simple process and equipment, reliable operation

Inactive Publication Date: 2008-07-16
TIANJIN UNIV
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solar power generation-membrane seawater or brackish water desalination system, the device is complicated, seawater or brackish water needs strict pretreatment, and the process is long
The desalination system that combines solar collectors with traditional seawater or brackish water desalination technology requires the installation of complex liquid spraying devices, and the spraying devices are easy to block, and uneven spraying can easily cause fouling of the heat transfer tubes, which affects the performance of the equipment. normal operation
Existing seawater or brackish water desalination systems that use solar energy to generate heat to drive seawater or brackish water to undergo a phase change under a certain degree of vacuum need to be equipped with vacuum pumps or jet pumps when vacuuming, which still consumes a lot of electric energy, resulting in unit The water production rate of energy consumption is small, which limits the promotion of solar seawater or brackish water desalination technology

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
  • Multiple-effect distillation device and method for desalting sea water or brackish water only by using solar

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail: Fig. 1 is the apparatus structure diagram of the present invention's single utilization solar energy desalination seawater or brackish water multi-effect distillation method (taking 4 effect evaporators as example). The solar collector 1 is a flat plate type, the model is PGT / L2.0-J, and the heat collecting area is 1m 2 , the temperature of the heat exchange medium of the solar collector can reach 80-83°C, and the dimensions of the evaporators and condensers of each effect are: 4000mm×600mm×11000mm.

[0015] The process of seawater desalination with the above-mentioned device is as follows: fill the evaporators with seawater through the seawater inlet pipe 4 and the seawater inlet valve 5, fill the evaporators and drain the non-condensable gas, close the seawater inlet valves, and open the evaporators for each effect The regulating valve 10 on...

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 multi-effect distillation device only by using solar energy to desalt sea water or brackish water and the method. The device comprises three parts: a solar energy collector, a multi-effect evaporator and a condenser. The method of the device for desalting the sea water or the brackish water comprises the processes: vacuum of each effect evaporator is regulated; steam generated in each effect evaporator sequentially enters a condensation heat exchange tube in a next effect evaporator through a steam outlet of the effect evaporator; after the condensation, the fresh water is obtained, and energy for vaporizing the sea water or brackish water in the effect evaporator is provided. The invention has the advantages of simple desalting process and device as well as reliable operation and running and no consumption of other energy except that the solar energy supplies heat, which is particularly applied to areas short of the fresh water but rich in the sea water, brackish water and the solar energy.

Description

technical field [0001] The invention relates to a multi-effect distillation device and method for desalinating seawater or brackish water by single use of solar energy, which belongs to the desalination technology of water treatment. Background technique [0002] Seawater or brackish water desalination technology is a process of removing salt in seawater and obtaining fresh water through devices or equipment. [0003] Seawater or brackish water desalination methods are mainly divided into distillation and membrane methods. Distillation seawater or brackish water desalination is the process of heating seawater or brackish water to evaporate and vaporize, and then condensing the steam to obtain fresh water. Membrane seawater or brackish water desalination technology refers to the method of separating salt and water in seawater or brackish water by using natural or synthetic polymer membranes and using external energy or chemical potential difference as the driving force. [...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/14C02F103/08
CPCY02A20/124Y02A20/142Y02A20/212
Inventor 解利昕张勇王世昌李凭力
Owner TIANJIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com