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

Brine-desalination method

A water desalination and raw water technology, applied in the field of salt water desalination, can solve the problem of high energy consumption

Inactive Publication Date: 2012-10-24
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
View PDF4 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The principle of distillation method is simple, but it consumes a lot of energy. The use of low-temperature evaporation can effectively reduce energy consumption. With the development of membrane production technology, the cost of membrane desalination brine has become the most competitive brine desalination process

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
  • Brine-desalination method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] a. The brine 1 is pretreated by mechanical impurity removal filtration, microfiltration, ultrafiltration, and security filter 2 and then enters the intermediate water tank 3, and then enters the reverse osmosis membrane treatment device 5 through the booster pump 4 for membrane filtration to obtain membrane treatment clean water 14;

[0017] b. The purified water 14 treated by the membrane can be stored or put into use. The remaining concentrated brine is discharged in two ways, one way enters the Venturi jet pump for high-speed injection, enters the middle water tank 3 for circulation treatment, and the other way passes through the check valve 7 (to prevent pipeline The internal fluid flows backwards), after being heated by the heat exchanger 15 and the heater 8 (the heating device 8 provides heat energy for the evaporation of water vapor, various forms of heating furnaces can be used, and power plants with conditions can use waste heat steam as a heat source, light Su...

Embodiment 2

[0020] The raw water treated in this embodiment is brackish water, which can be used in areas with long sunshine hours.

[0021] a. The brackish water 1 enters the intermediate water tank 3 after being pretreated by mechanical impurity removal filtration, microfiltration, ultrafiltration, and security filter 2, and then enters the reverse osmosis membrane treatment device 5 through the booster pump 4 for membrane filtration to obtain Membrane treatment water purification 14;

[0022] b. The purified water 14 treated by the membrane is stored or put into use, and the remaining concentrated brine is discharged in two ways, one way enters the Venturi jet pump for high-speed injection, enters the middle water tank 3 for circulation treatment, and the other way passes through the check valve 7 (to prevent the water from entering the pipeline) Fluid backflow), after being heated by the heat exchanger 15 and the heater 8 (here is a solar water heater), the throttle valve 9 (plays...

Embodiment 3

[0025] The raw water processed in this embodiment is sea water;

[0026] a. The seawater (1) enters the intermediate water tank (3) after being pretreated by mechanical impurity removal filtration, microfiltration, ultrafiltration, and security filter (2), and then enters the nanofiltration membrane treatment device (5) through the booster pump 4 ) to perform membrane filtration to obtain membrane-treated purified water 14;

[0027] b. The purified water 14 treated by the membrane is put into use, and the remaining concentrated brine is discharged in two ways, one way enters the Venturi jet pump for high-speed injection, enters the middle water tank 3 for circulation treatment, and the other way passes through the check valve 7 to prevent the fluid in the pipeline from backflowing, After being heated by the heat exchanger 15 and the heater 8 (the heating device 8 provides heat energy for the evaporation of water vapor, various forms of heating furnaces can be used, power plant...

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 aims to provide a brine-desalination method, which organically combines a distillation method and a membrane method for brine desalination, the high pressure of the strong brine of the membrane method is utilized to drive the negative pressure of a Venturi injection pump for lowering the subsequent evaporating pressure, so the evaporating process is carried out under the atmospheric pressure, the evaporating temperature can be effectively reduced, the evaporating energy consumption is saved, the concentration of the evaporating raffinate is high, and moreover, the heat of the evaporating raffinate is utilized for the subsequent crystallization; and the latent heat of the evaporated steam is effectively utilized to heat the brine to be evaporated, the heat energy is further recovered, and the energy consumption is lowered.

Description

technical field [0001] The invention relates to a method for desalination of brine. Background technique [0002] With the growth of the world's population, the massive development of water resources that can be directly used by humans, and the pollution of available water resources in the process of industrialization, the fresh water resources on the earth are decreasing and deteriorating, and the distribution of drinking water resources is also very uneven. In response to the scarcity of fresh water resources, various local water resources have been used to produce fresh water. The most widely used are desalination of seawater, desalination of brackish water and treatment of high-concentration brine. [0003] At present, the brine desalination methods mainly include distillation, freezing, ion exchange and membrane. The development of desalination technology mainly focuses on reducing energy consumption and cost. Distillation has multiple effect evaporation, multi-stage fl...

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): C02F9/10C02F1/04C02F1/44
CPCY02A20/124Y02A20/131
Inventor 文彬杨丹红任英杰
Owner XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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