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Humidification-dehumidification system and method at low overhead brine temperatures

A humidifier and dehumidifier technology, applied in chemical instruments and methods, separation methods, seawater treatment, etc., can solve problems such as difficult to obtain, expensive, and a large amount of energy

Active Publication Date: 2022-08-09
GRADIANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some cases, the heating step may require relatively large amounts of energy, which may be expensive and / or difficult to obtain

Method used

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  • Humidification-dehumidification system and method at low overhead brine temperatures
  • Humidification-dehumidification system and method at low overhead brine temperatures
  • Humidification-dehumidification system and method at low overhead brine temperatures

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0159] In this example, an HDH system including a bubble column humidifier and a bubble column condenser is described. The system contains five fluid paths: an air flow path, a main brine flow path, a top plate recirculation flow path, a heated liquid flow path associated with an electric heater, and a pure water flow path.

[0160] Figure 4 Schematic diagram of the HDH system. The system includes a multi-stage bubble column humidifier 402 , a multi-stage bubble column condenser 422 , an electric heater 404 , a titanium plate and frame heat exchanger 462 , an air cooling heat exchanger 482 and a storage tank 464 . The bubble column humidifier 402 includes multiple stages including a first stage 402A, a last stage 402H, and intermediate stages 402B-402G. Additionally, bubble column humidifier 402 includes a sump volume 402I located below stages 402A-402H. Bubble column condenser 422 includes multiple stages including first stage 422A, last stage 422H, and intermediate stage...

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PUM

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Abstract

The described embodiments generally relate to systems including a humidifier (eg, a bubble column humidifier) ​​and a heating device (eg, a heat exchanger) and related methods. In certain embodiments, the heating device directs the first liquid stream comprising a liquid phase condensable fluid (eg, water) and dissolved salts (eg, NaCl) into the humidifier through the main humidifier liquid inlet Heating to a relatively low temperature (eg, about 90°C or less). In some cases, systems including humidifiers and heating devices require only low levels of heat to operate, which may be advantageous due to the high availability and low cost of such heat.

Description

[0001] Related applications [0002] This application is US Patent Application No. 15 / 2016, entitled "Humidification-Dehumidification Systems and Methods at Low Top Brine Temperatures", filed May 20, 2016 Continuing Application No. 161,051, the entire contents of which are incorporated herein by reference for all purposes. technical field [0003] The disclosed embodiments relate generally to systems including humidifiers and heating devices and related methods. Background technique [0004] Freshwater shortages are becoming a growing problem around the world as the demand for freshwater for human consumption, irrigation and / or industrial use continues to grow. In order to meet the increasing demand for fresh water, various desalination methods can be used to extract water from brine (eg, seawater, brackish water, water produced by oil and / or gas extraction processes, flowback water, and / or wastewater) to produce fresh water. For example, one desalination method is the hu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/02C02F1/04
CPCB01D3/346B01D1/14B01D5/003C02F1/048C02F2103/08Y02A20/124B01F23/23123Y02W10/37B01F23/231B01F2101/305C02F2101/12
Inventor 史蒂文·拉姆康纳尔·托马斯·威尔逊马克西莫斯·G·圣约翰普拉卡什·纳拉扬·戈文丹
Owner GRADIANT