A humidifying-dehumidifying seawater or brackish water desalination device and method

A brackish water desalination and brackish water technology, applied in seawater treatment, general water supply saving, heating water/sewage treatment, etc. Low quality requirements, accelerated heat and mass transfer rates, and easy cleaning

Inactive Publication Date: 2017-09-01
ZHEJIANG UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the spray method overcomes the shortcomings of the large resistance of the bubbling method, it cannot balance the advantages and disadvantages in controlling the spray particle size.
If the mist droplets are too large, the air-water contact will be insufficient, and the humidification effect will be poor; if the mist droplets are too small, the mist droplets may be directly carried by the air into the condenser, affecting the water quality

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
  • A humidifying-dehumidifying seawater or brackish water desalination device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment, figure 1 It is a schematic diagram of a new humidification-dehumidification seawater desalination device.

[0024] A humidification-dehumidification seawater or brackish water desalination device, including a hot water pump 1, a humidification tower 2, a buffer tank 3, a fan 4, a dehumidification tower 5, a filler 6, a gas pipeline 7, and a first liquid distributor 8. Liquid pipeline 9, heater 10, first gas distributor 11, water storage tank 12, pretreatment device 13, second liquid distributor 14, second gas distributor 15;

[0025] The upper part of the humidifying tower 2 is provided with a first liquid distributor 8, the lower part of the humidifying tower 2 is provided with a first gas distributor 11, the upper part of the dehumidifying tower 5 is provided with a second liquid distributor 14, and the lower part of the dehumidifying tower...

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 present invention belongs to a humidification-dehumidification desalination method and apparatus for sea water or brackish water, and the apparatus includes pretreatment system and a humidification-dehumidification system. The pretreated seawater or brackish water is introduced into a storage tank, preheated by a heater, pumped into a humidification tower; and then the seawater or brackish water passes through an overhead liquid distributor and directly contacts with the bottom-up carrier gas flowing through a packed column, so as to humidify the carrier gas; and the carrier gas with high humidity is introduced to dehumidification tower bottom via a pipeline, and direct contacts with the top-down cooling water, and the water vapor is condensed and discharged with cooling water, so as to obtain fresh water. The method uses the characteristics of large specific surface area and small resistance of the filler, realizes gas-liquid interphase faster heat and mass transfer, and is applicable to sea island, desert and thermal power plants. Compared with the prior desalination technology, the apparatus has the characteristics of simple equipment, easy operation, easy treatment and cleaning, small investment, and easy operation and maintenance.

Description

technical field [0001] The invention belongs to the field of seawater desalination, and in particular relates to a device and method for desalinating seawater or brackish water by humidifying and dehumidifying. Background technique [0002] Water is called the source of human life, plays an important role in human survival and development, and is an indispensable and important natural resource for human beings. With the large-scale development of human beings and the destruction of the environment, the shortage of fresh water resources has become more severe, and the desalination technology of seawater or brackish water provides an effective means to solve the problem of shortage of fresh water resources. [0003] At present, traditional seawater desalination methods can be roughly divided into two categories: phase change method and non-phase change method. Phase change methods mainly include distillation, freezing and gas hydrate methods, while non-phase change methods in...

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 Patents(China)
IPC IPC(8): C02F1/04C02F103/08
CPCY02A20/124
Inventor 夏枚生吕韩陈方方葛柳钦
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