TWM624749U - Deep sea water desalination device - Google Patents

Abstract

A deep seawater desalination device, including a seawater natural pressure water collector, a seawater impurity filter, a seawater salt filter, a freshwater well, and a freshwater pumping motor, the deep seawater desalination device is placed in the sea, and the freshwater well is used. The outlet is communicated with the atmosphere on the sea surface, so that a natural seawater pressure difference is generated in the freshwater well and the seawater natural pressure water collector, the seawater impurity filter, and the seawater salt filter. The seawater natural pressure water collector is provided with a deep seawater inlet. The outlet of the seawater natural pressure water collector is closely connected to the seawater impurity filter. Using the natural seawater pressure difference, the deep seawater can enter the seawater impurity filter through the seawater natural pressure water collector, and the seawater impurity filter is closely connected to the seawater salt filter. The deep seawater entering the seawater impurity filter can pass through the seawater impurity filter and then enter the seawater salinity filter by utilizing the natural seawater pressure difference. The difference can make the deep seawater entering the seawater salt filter, after passing through the one or more layers of salt filter membranes, enter the freshwater well and become freshwater, and the freshwater in the freshwater well can be pumped out for use by the freshwater pumping motor. 1. A deep seawater desalination device with low energy consumption, low cost and no pollution.

Description

Deep seawater desalination device

This work is about a desalination device for deep seawater, especially a device that can be used to obtain fresh water without using seawater extraction device and seawater pressurization device, so that seawater can use the natural pressure of seawater to pass through the seawater desalinator and obtain fresh water. The problem of sewage discharge can be achieved quickly and easily, without the need to extract seawater or use a seawater pressure device, and because the deep seawater is very clean, it is not necessary to use a complicated seawater impurity filter to achieve the purpose of low energy consumption. It is a deep seawater desalination device that can effectively save energy, avoid the problem of sewage discharge, low construction cost, and low cost of fresh water production.

Seawater is the most abundant water resource on earth. The development and utilization of seawater desalination technology is one of the important ways to solve the global water crisis. Today, 70% of the fresh water in the Middle East countries comes from desalination. Developed countries such as the United States, Japan, and Spain are also competing to develop desalination technology in order to maintain their own freshwater resources. Seawater desalination technologies are becoming more and more diverse, and the technologies used for commercial use of seawater desalination can be mainly divided into two categories: evaporation method and thin film method. Evaporation method includes three kinds of multi-effect evaporation method, multi-stage flashing method and vapor compression method. Membrane methods mainly include reverse osmosis and electrodialysis. At present, all seawater desalination technologies have two major problems: high energy consumption and sewage discharge, and at the same time, the cost of fresh water is relatively high.

As shown in Figure 1, it is a seawater desalter with a conventional membrane method, including Seawater storage tank 10a, seawater pre-filter 11a, primary filtered seawater storage tank 12a, seawater microfilter 13a, seawater pressurizer 14a, seawater desalination membrane group 15a, brine tank 16a and freshwater tank 17a, the seawater desalinator is composed of Including a seawater storage tank 10a, the seawater storage tank 10a is provided with a seawater inlet 18a, the seawater storage tank 10a is arranged at the front end of a seawater pre-filter 11a, and is connected with the seawater pre-filter 11a by a pipeline, the pipeline can make The seawater in the seawater storage tank 10a enters the seawater pre-filter 11a, and the rear end of the seawater pre-filter is arranged in the first-filter seawater storage tank 12a, and is connected with the seawater pre-filter 11a by a pipeline, which can allow the seawater to flow through it. The seawater in the pre-filter enters the pre-filtered seawater storage tank 12a, and the rear end of the pre-filtered seawater storage tank 12a is provided with a seawater microfilter 13a, and is connected to the pre-filtered seawater storage tank 12a by a pipeline, which can make the primary filter The seawater in the filtered seawater storage tank 12a enters the seawater microfilter 13a, and the rear end of the seawater microfilter 13a is arranged on a seawater pressurizer 14a, and is connected with the seawater microfilter 13a by a pipeline, which can flow through the microfilter 13a. The seawater in the seawater microfilter 13a enters the seawater pressurizer 14a, and a seawater desalination membrane group 15a is arranged at the rear end of the seawater pressurizer 14a, and is connected to the pipeline of the seawater pressurizer 14a, which can pressurize the seawater The seawater in the device 14a enters the seawater desalination membrane group 15a by the pressure generated by the seawater pressurizer 14a, and a brine tank 16a and a freshwater tank 17a are arranged at the rear end of the seawater desalination membrane group 15a. They are respectively connected with the seawater desalination membrane group 15a by pipelines. The brine produced by the seawater desalination membrane group 15a is output to the brine tank 16a through the pipeline connecting the seawater desalination membrane group 15a to the brine tank 16a. The brine tank 16a is provided with a The discharge port 19a is used for sewage discharge. The fresh water produced by the seawater desalination membrane group 15a is output into the freshwater tank 17a through the pipeline connecting the seawater desalination membrane group 15a to the freshwater tank 17a. The brine tank 16a is provided with a water intake 20a. for taking out fresh water.

The known seawater desalinator is stored in the seawater storage tank 10a and extracted from the sea The seawater is purified by the seawater pre-filter 11a and the seawater microfilter, so as to provide the seawater purified by the seawater desalination membrane group 15a. The pressure of 50~60bar can be generated by the pressure device to pass the seawater desalination membrane group 15a to achieve the purpose of seawater desalination. Therefore, even if the purpose of seawater desalination can be achieved, it will consume a lot of energy, and the high-concentration brine produced will be discharged back into the sea, which will seriously affect the Due to the ecological environment of the sea area of the brine discharge outlet, and at the same time, the seawater desalinator is composed of many equipments, the cost of construction and maintenance is high, and the cost of fresh water production is high.

This creation provides a deep seawater desalination device, including a seawater natural pressure water collector, a seawater impurity filter, a seawater salt filter, a freshwater well, and a freshwater pumping motor. The outlet of the freshwater well is connected to the atmosphere on the sea surface, so that a natural seawater pressure difference is generated in the freshwater well and the seawater natural pressure water collector, the seawater impurity filter, and the seawater salt filter. The seawater natural pressure water collector is provided with a deep layer. Seawater inlet, the seawater impurity filter is closely connected to the outlet of the seawater natural pressure water collector. Using the natural seawater pressure difference, the deep seawater can enter the seawater impurity filter through the seawater natural pressure water collector, and the seawater impurity filter is closely connected to the seawater. The salt filter uses the natural seawater pressure difference to allow the deep seawater entering the seawater impurity filter to pass through the seawater impurity filter and then enter the seawater salt filter. One or more layers of salt filter membranes are installed at the outlet of the seawater salt filter to use natural water. The seawater pressure difference can make the deep seawater entering the seawater salt filter, after passing through the one or more layers of salt filter membranes, enter the freshwater well and become freshwater. The freshwater in the freshwater well can be pumped out by the freshwater pump for use. Thereby, a deep seawater desalination device with low energy consumption is formed.

The deep sea water desalination device provided by this creation uses the sea water natural pressure water collector placed in the deep sea to directly obtain clean sea water in the deep sea, so there is no need for seawater storage tanks and seawater. Pre-water filter, primary filter seawater storage tank and other equipment. Further, without one or more seawater pressurizers, the deep seawater desalination device can directly utilize the seawater pressure of the deep sea to directly pass the deep sea clean seawater through the seawater natural pressure water collector and enter the seawater impurity filter for micro-purification treatment. Using the seawater pressure in the deep sea to purify the treated seawater, make it pass through the seawater salinity filter, output the fresh water to the freshwater well, and discharge the high-concentration seawater into the deep sea naturally, the equipment is simple, the construction cost is low, the energy consumption is low affect the ecological environment.

The deep seawater desalination device provided by this creation utilizes the natural seawater pressure difference in the seawater natural pressure collector, seawater impurity filter, seawater salinity filter and freshwater well to achieve the purpose of seawater desalination. After the pressure collector, seawater impurity filter, and seawater salt filter, the fresh water generated enters the freshwater well, so the freshwater pump must be continuously pumped out by a freshwater pump to obtain usable freshwater and maintain the natural pressure of the seawater collector, seawater The natural seawater pressure difference between the impurity filter, the seawater salinity filter and the freshwater well allows freshwater to be continuously produced and the cost of obtaining freshwater is low.

10a: Seawater storage tank

11a: Seawater pre-filter

12a: Primary filtered seawater storage tank

13a: Seawater microfilters

14a: Seawater Compressor

15a: Seawater desalination membrane group

16a: Brine Sink

17a: Fresh Water Tanks

10: Seawater natural pressure water collector

11: Seawater impurity filter

12: seawater salt filter

13: Freshwater Well

14: Freshwater Pumping Motor

15: Fresh water inlet pipe

16: Fresh water outlet pipe

17: Pumping motor holder

18: Seawater desalinator holder

19: Porous deep seawater inlet

20: Desalter floating platform

[Fig. 1] is a plan view of a conventional seawater desalinator.

[Figure 2] is a three-dimensional view of this creation.

[Figure 3] is a three-dimensional exploded view of this creation.

[Figure 4] is a side view of this creation.

[Figure 5] is a sectional view of this creation.

[Figure 6] is a partial top view of this creation.

[Fig. 7] is a perspective view of another embodiment of the present invention.

Please refer to Figure 2, Figure 3, Figure 4, Figure 5 and Figure 6, the present invention provides a deep seawater desalination device, including a seawater natural pressure water collector 10, a seawater impurity filter 11, a seawater salinity Filter 12, fresh water well 13, fresh water pumping motor 14, fresh water inlet pipe 15, fresh water outlet pipe 16, water pumping motor fixing frame 17, seawater desalinator fixing frame 18, porous deep sea water inlet 19, The desalination device is placed in the sea, and the outlet of the freshwater well 13 is communicated with the atmosphere on the sea surface, so that natural water is generated in the freshwater well 13 and the seawater natural pressure water collector 10, the seawater impurity filter 11, and the seawater salt filter 12. Seawater pressure difference, the seawater natural pressure water collector 10 is provided with a porous deep seawater inlet 19, and the seawater impurity filter 11 is closely connected to the outlet of the seawater natural pressure water collector. The seawater natural pressure water collector enters the seawater impurity filter 11 , and the seawater impurity filter 11 is closely connected with the seawater salt filter 12 , and the deep seawater entering the seawater impurity filter 11 can pass through the seawater impurity filter 11 by utilizing the natural seawater pressure difference. After entering the seawater salinity filter 12, the deep seawater entering the seawater salinity filter 12 can be made into fresh water after passing through the seawater salinity filter 12 by utilizing the natural seawater pressure difference. After the seawater becomes freshwater through the seawater salt filter 12, it enters the freshwater well 13. The freshwater in the freshwater well 13 can be pumped by the freshwater pumping motor 14 using the freshwater inlet pipe 15, and output from the freshwater outlet pipe 16 for supply. For use, the fresh water pumping motor 14 can be fixed in a specific position by the pumping motor fixing frame 17, thereby forming a deep seawater desalination device with low energy consumption. The deep seawater desalination device can be fixed on the seabed by the seawater desalinator fixing frame 18 . Please refer to FIG. 7 , the deep seawater desalination device can also be floated in the sea by the seawater desalinator floating platform 20 .

10: Seawater natural pressure water collector

11: Seawater impurity filter

12: seawater salt filter

13: Freshwater Well

14: Freshwater Pumping Motor

15: Fresh water inlet pipe

16: Fresh water outlet pipe

17: Pumping motor holder

18: Seawater desalinator holder

19: Porous deep seawater inlet

Claims (8)

A deep seawater desalination device, comprising: a seawater natural pressure water collector, the seawater inlet is provided with a porous deep seawater inlet; a seawater impurity filter, the seawater inlet is connected to the outlet of the seawater natural pressure water collector, It is provided with a seawater impurity filtering device; a seawater salt filter, the inlet of the seawater is connected to the outlet of the seawater impurity filter, and a membrane method seawater salt filtering device is installed inside; a freshwater well, the freshwater inlet is connected to the seawater salt The outlet of the filter, the water collecting space in its interior is communicated with the atmosphere; a fresh water pumping motor, the water inlet of which is connected with a fresh water inlet pipe, the fresh water inlet pipe is arranged inside the fresh water well, and the water outlet of the fresh water pumping motor is connected with a fresh water outlet water pipe. The deep seawater desalination device according to claim 1, wherein a porous deep seawater inlet is provided at the seawater inlet of the seawater natural pressure water collector, which can prevent sea creatures from entering. The deep seawater desalination device according to claim 1, wherein a seawater impurity filter is connected to the outlet of the seawater natural pressure water collector, and a seawater impurity filter is arranged inside, so that the seawater can enter the front of the seawater salt filter Get purified. The deep seawater desalination device as claimed in claim 1, wherein the outlet of the seawater and seawater impurity filter is connected to a seawater salt filter, and a membrane method seawater salt filter device is arranged inside, and the device can filter seawater salt remove. The deep seawater desalination device as claimed in claim 1, wherein the outlet of the seawater salinity filter is connected to a freshwater well, and the water collecting space inside is communicated with the atmosphere, so that the natural pressure water collector of seawater can be connected to the freshwater well There is a natural seawater pressure difference between them. The deep seawater desalination device as claimed in claim 1, wherein the fresh water pumping motor has a fresh water inlet connected to a fresh water inlet pipe, the fresh water inlet pipe is arranged inside the fresh water well, and can extract fresh water in the fresh water well, and the fresh water pumping motor The water outlet is connected to a fresh water outlet pipe, which can output fresh water in the fresh water well. According to the deep seawater desalination device described in claim 1, the device can be fixed on the seabed with a seawater desalinator fixing frame. As for the deep seawater desalination device described in claim 1, when the device is not provided with a fixed frame, it can be floated in the sea with a seawater desalinator floating platform.

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