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Solar seawater desalination device and seawater desalination method thereof

A solar water heater and solar energy technology, applied in chemical instruments and methods, seawater treatment, water/sewage treatment, etc., can solve problems such as low efficiency of solar seawater desalination, and achieve less requirements for auxiliary facilities, high desalination efficiency, and controllable investment cost. Effect

Active Publication Date: 2011-11-16
常熟市知识产权运营中心有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: to overcome the defects of low efficiency of existing solar seawater desalination, and provide a solar seawater desalination device with high seawater desalination efficiency and adjustable size

Method used

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  • Solar seawater desalination device and seawater desalination method thereof
  • Solar seawater desalination device and seawater desalination method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: The seawater entering the solar water heater 2 and the seawater in the evaporator 3 adjust the amount of seawater entering through the siphon principle. The temperature of the seawater heated by the solar water heater 2 is above 90°C. The vacuum injection pipe 11 is a water flow type vacuum injection pipe, and the vacuum injection pipe 11 may have a heat preservation water coil. Described solar water heater 2 is made up of one, and described evaporator 3 is made up of one. The negative pressure formed in the vacuum jet tube 11 is 0.8 atm, and the power of the jet pump is 25W.

Embodiment 2

[0025] Embodiment 2: The seawater entering the solar water heater 2 and the seawater in the evaporator 3 adjust the amount of seawater entering through the siphon principle. The temperature of the seawater heated by the solar water heater 2 is above 95°C. The vacuum injection pipe 11 is a water flow type vacuum injection pipe, and the vacuum injection pipe 11 is an insulated steam coil. An additional condenser may be connected between the ejection outlet 13 of the vacuum ejection pipe 11 and the ejection circulating water tank 15, so as to quickly condense the ejected water vapor mixture. Condensed water coils are arranged in the condenser 6 . The negative pressure formed in the vacuum jet tube 11 is 0.5 atm, and the power of the jet pump 17 is 100W.

Embodiment 3

[0026] Embodiment 3: The seawater entering the solar water heater 2 and the seawater in the evaporator 3 adjust the amount of seawater entering through the siphon principle. The temperature of the seawater heated by the solar water heater 2 is above 95°C. The vacuum injection tube 11 is a steam type vacuum injection tube. The condenser 6 is not connected to the device. An additional condenser may be connected between the ejection outlet 13 of the vacuum ejection pipe 11 and the ejection circulating water tank 15, so as to rapidly condense the ejected water vapor mixture. The solar water heater 2 is composed of multiple sets, and the evaporator 3 is composed of a single set. The negative pressure formed in the vacuum injection pipe 11 is 0.2 atm, and the power of the injection pump 17 is 1KW.

[0027] As shown in the drawings, in the above-mentioned embodiments 1-3, seawater enters the solar water heater 2 from the seawater inlet 1, enters the evaporator 3 after being heated...

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Abstract

The invention provides a solar seawater desalination device. The device comprises a seawater inlet, a solar heating system, a condenser, a vacuum injection system and a fresh water tank, wherein the vacuum injection system comprises a solar cell, an injection pump, a vacuum injection tube and an injection circulating water tank. The seawater desalination process is as follows: seawater enters a solar water heater from the seawater inlet, is heated and then enters an evaporator, the generated steam comes out from a steam outlet A and then enters the condenser, the condensed fresh water flows into the fresh water tank, and the steam which is not condensed flows into the pumping hole of the vacuum injection tube; and after the injection pump is started, the vacuum injection tube is driven to work, steam is pumped from the pumping hole to ensure that seawater is evaporated from the evaporator faster, and more water-steam mixture is sprayed out from an injection outlet, enters the injection circulating water tank and flows out of the fresh water tank. The device fully uses solar energy as energy to desalinate the seawater and is environmentally-friendly; and because of the action of the vacuum injection system, the seawater desalination efficiency is high and the investment cost is controllable.

Description

technical field [0001] The invention relates to a seawater desalination device, in particular to a device and a desalination method for seawater desalination by using solar energy and a vacuum jet pump. Background technique [0002] We know that humans have tried various methods of seawater desalination, and how to achieve seawater desalination efficiently and at low cost has always puzzled humans. In recent years, with the application of solar energy technology, the cost of seawater desalination has dropped significantly, but the problems of low desalination efficiency have not been completely resolved. [0003] The document with the patent application number CN201010549238.1 discloses "a solar vacuum seawater desalination device", which mainly uses vacuum to import seawater, and then uses the temperature of solar hot water to distill seawater, so that the water and salt in seawater Parts are separated to achieve the effect of seawater desalination. The main inventive fea...

Claims

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Application Information

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IPC IPC(8): C02F1/14C02F103/08
CPCY02A20/124Y02A20/142Y02A20/212
Inventor 仇晓丰
Owner 常熟市知识产权运营中心有限公司
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