Seawater desalinization method and seawater desalinization device

A seawater and freshwater technology, used in seawater treatment, general water supply conservation, heating water/sewage treatment, etc., can solve the problems of unsatisfactory freshwater quality, low thermal energy recycling, and high manufacturing and maintenance costs, and is conducive to energy exchange and consumption. The effect of low power consumption and saving installation cost

Inactive Publication Date: 2014-03-26
庞希城
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most widely used desalination technology is high-pressure reverse osmosis technology. Although the cost of this technology has decreased, it still consumes more electric energy and other materials. The cost should not be underestimated,

Method used

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  • Seawater desalinization method and seawater desalinization device
  • Seawater desalinization method and seawater desalinization device
  • Seawater desalinization method and seawater desalinization device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1:

[0032] Reference figure 1 , The seawater desalination device of this embodiment includes a first jet circulation pump 2, a first condensation ejector 3, a first fresh water circulation tank 4 and a first evaporator 1. The lower part of the first fresh water circulation tank 4 is connected to the first evaporator 1 through a pipeline. The inlet end of the first evaporator 1 is connected to the inlet end of the first jet circulating pump 2 through a pipe, and the outlet end of the first jet circulating pump 2 is connected to the inlet end of the first condensation ejector 3 through a pipe, The outlet end of the first condensation ejector 3 is provided with a pipe whose nozzle extends into the first fresh water circulation tank 4, and the injection end interface of the first condensation ejector 3 is connected to the vacuum chamber of the first evaporator 1 through the pipe; A third heat exchanger is installed inside a fresh water circulation box 4; the outlet en...

Example Embodiment

[0040] Example 2:

[0041] The difference between the device of this embodiment and the device of embodiment 1 is that it also includes at least one recirculation evaporation concentration system, and the output end of the primary concentrated brine discharge pump 5 is connected to the recirculation evaporation concentration system.

[0042] This embodiment takes a recirculation evaporation and concentration system as an example for description.

[0043] Reference figure 2 The recirculation evaporative concentration system includes a fourth heat exchanger 18. The output end of the primary concentrated brine discharge pump 5 is connected to the inlet end of the fourth heat exchanger 18 through a pipe, and the outlet end of the fourth heat exchanger 18 passes through a pipe. Connected to the inlet end of the fifth heat exchanger placed in the second fresh water circulation tank 16, the outlet end of the fifth heat exchanger is connected to the second evaporator 13 through a pipe, and ...

Example Embodiment

[0051] Example 3:

[0052] The difference between the device of this embodiment and the device of embodiment 1 is that the first evaporator is replaced by a third evaporator 28 with a built-in condenser.

[0053] In this embodiment, a condenser is provided in the third evaporator 28. The inlet end of the condenser in the third evaporator 28 is the seawater inflow end, and the outlet end of the condenser in the third evaporator 28 passes through the pipe and the heater 30. The inlet end of the third evaporator 28 is connected to the condensate suction pump 24 below the condenser in the third evaporator 28, the outlet end of the heater 30 is connected to the third evaporator 28 through a pipe, and the third evaporator 28 is connected to the circulating pump through a pipe The inlet end of 20 is connected, the outlet end of the circulating pump 20 is connected to the inlet end of the third condensing ejector 21 through the pipe, and the outlet end of the third condensing ejector 21 is...

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Abstract

The invention provides to a seawater desalinization method and a seawater desalinization device. The method comprises the steps as follows: firstly, introducing seawater passing through a heat exchanger into an evaporator directly, or running seawater in a fresh water circulation box containing another built-in heat exchanger, absorbing heat from the fresh water inside the fresh water circulation box and then introducing the seawater into the evaporator; secondly, evaporating the seawater in the evaporator; thirdly, condensing the water vapor generated from the seawater inside the evaporator in a condensation ejector, feeding back the latent heat of the water vapor to the fresh water to increase the temperature of the fresh water, sucking the water vapor into the evaporator by an ejection recirculating pump to exchange heat with the seawater and further lower the temperature of the fresh water, and receiving the latent heat fed back by the water vapor generated from the evaporation of seawater at the condensation ejector; fourthly, discharging strong brine generated from evaporation of the seawater through a strong brine discharge pump. The invention further provides a device for conducting the seawater desalinization method. The device is small in size and in space usage, stable and reliable in operation, high in work efficiency and large in evaporation capacity, low in power source consumption and good in quality of the fresh water produced by the device, and no air-suction device is required.

Description

technical field [0001] The invention relates to a seawater desalination method and device. Background technique [0002] "Water" is a big subject. Politicians say that "the world's future war for resources will be triggered by water"; scientists say that "water is irreplaceable" and "water is a scientific proposition that can never be completed"; economists predict that "after the energy crisis, the next One crisis will take its turn as a water crisis". A large number of data and papers show that if human beings continue to draw and use water as they are now, a series of serious consequences will occur; once the resources are exhausted, economic development, various ecological systems, and human health and survival will be threatened. It is predicted that in the 21st century, water will be as important to human beings as oil was to human beings in the 20th century, and water will become a precious commodity that determines the wealth of countries. The water industry wi...

Claims

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Application Information

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IPC IPC(8): C02F1/04C02F103/08
CPCY02A20/124
Inventor 刘小江刘赟
Owner 庞希城
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