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A self-driven seawater desalination device and method

A self-driven, seawater technology, applied in chemical instruments and methods, seawater treatment, general water supply conservation, etc., can solve problems endangering system operation, etc., and achieve the effects of reducing economic costs, wide application, and simple installation

Active Publication Date: 2022-05-10
武汉润德工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the latest progress of this technology is Low-grade waste heat driven desalination with an open loop heatpipe, 2018. After the system has been running for about 2 hours, the system still cannot avoid the introduction of a vacuum pump to intermittently pump out the non-condensable gas in the compensation chamber. Otherwise, the non-condensable gas will directly endanger the operation of the system

Method used

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  • A self-driven seawater desalination device and method
  • A self-driven seawater desalination device and method

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0032] Such as figure 1 As shown, a self-driven seawater desalination device includes an evaporator 1 , a condenser 2 and a Venturi tube 15 . The Venturi tube 15 is composed of four parts, which are successively a cylindrical tubular inlet section, a tapered and tapered constriction section, a cylindrical tubular throat and a gradually enlarged and slightly inclined diffuser section. The evaporator 1 is a cylindrical shell, the inlet section of the venturi tube 15 is connected to the evaporator 1 as a whole, and the two are arranged coaxially; the diffuser section of the venturi tube 15 is connected to the condenser 2 through a pipeline. Preferably, the inner diameter of the inlet section of the venturi 15 is equal to the inner diameter of the evaporator 1 .

[0033] A porous core 14 is arranged inside the evaporator 1, and the porous core 1...

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Abstract

A self-driven seawater desalination device and method, relating to the field of seawater desalination and energy saving and emission reduction, the inlet section of the Venturi tube of the seawater desalination device is connected to the evaporator; the diffusion section of the Venturi tube is connected to the condenser through a pipeline; the inside of the evaporator A porous core is provided, and the porous core divides the inner cavity of the evaporator into an isolated seawater cavity and a steam cavity; a seawater channel is opened at the axis of the porous core; one end of the seawater channel communicates with the seawater cavity, and the seawater cavity communicates with the water inlet The other end of the seawater channel communicates with the water outlet through the pipeline; the head space of the seawater chamber is provided with a non-condensable air pipe, and the non-condensable air pipe communicates with the throat of the Venturi tube; when the seawater desalination device is running, the air pressure in the throat is less than The air pressure in the headspace of the seawater chamber; the hydraulic pressure in the seawater chamber is greater than the hydraulic pressure at the water outlet, and smaller than the hydraulic pressure at the water inlet. The invention does not need a supplementary water pump, a brine pump and a vacuum pump, realizes long-term operation without any pumping equipment, and achieves the purpose of seawater desalination.

Description

technical field [0001] The invention relates to the field of seawater desalination and energy saving and emission reduction, in particular to a self-driven seawater desalination device and method. Background technique [0002] The essence of seawater desalination is to exchange water with energy. The contradiction between the increasing demand for freshwater and energy shortage is the bottleneck problem that limits the rapid development of seawater desalination technology. The most anticipated desalination method is to exchange the least amount of energy for the most freshwater. The main energy required for seawater desalination includes: thermal energy and electrical energy. Among them, heat energy is used to heat seawater to generate steam. From a thermodynamic point of view, the use of low-temperature heat sources to drive seawater desalination can effectively reduce the cost of desalination energy consumption; in addition, electric energy consumption includes feed water ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/04C02F103/08
CPCC02F1/04C02F1/043C02F2103/08C02F2201/002Y02A20/124
Inventor 胡雪蛟章先涛
Owner 武汉润德工程技术有限公司
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