Solar energy focus and membrane distillation process based sea agriculture ecological membrane

A solar concentrating and agro-ecological technology, applied in the fields of solar seawater desalination and ecological agriculture, can solve the problems of high requirements for photoelectric conversion facilities, occupying large sunny land, etc., and meet the requirements of the site. It is convenient and flexible, easy to popularize and use, and easy to operate. Effect

Inactive Publication Date: 2016-10-26
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it needs to occupy a lot of sunny land, and the requirements for photoelectric conversion facilities are relatively high.

Method used

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  • Solar energy focus and membrane distillation process based sea agriculture ecological membrane
  • Solar energy focus and membrane distillation process based sea agriculture ecological membrane
  • Solar energy focus and membrane distillation process based sea agriculture ecological membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] figure 1 It is a cross-sectional view of the basic unit of marine agricultural ecological membrane based on solar concentration and membrane distillation process. It can be seen from the figure that sunlight (1) is incident on the surface of the curved concentrator (2), and after multiple reflections, reaches the light-to-heat converter (8) and is converted into heat energy. A porous material water absorber (7) is fixed on the side of the light-to-heat converter (8), wherein the absorbed seawater is heated into water vapor by the heat energy converted by the light-to-heat converter (8). Water vapor is separated from seawater through the seawater distillation membrane (6) adjacent to the porous material water absorber (7), and then the water vapor can pass through the hydrophilic material on the side of the ecological agricultural tank (3) to be used by crops, or be condensed and collected in fresh water The collection tank (4) is used by crops through the ecological a...

Embodiment 2

[0024] Figure 4 It is a cross-sectional view of an offshore agro-ecological membrane multi-unit combination based on solar concentration and membrane distillation processes. It can be seen from the figure that when multiple units are used in combination, the two ends of the device are still basic units, and the other units replace both sides of the ecological agricultural tank (3) with hydrophilic materials on the basis of the basic units.

[0025] Figure 5 It is the baffles on the front and rear sides of the multi-unit combination of marine agricultural ecology membrane based on solar energy concentration and membrane distillation process. It can be seen from the figure that the baffles are fixed on both sides of the device to support and seal the space.

Embodiment 3

[0027] Figure 6 It is a cross-sectional view of the basic unit of the oblique concentrator of marine agricultural ecological membrane based on solar concentration and membrane distillation process. As can be seen from the figure, in this embodiment, the curved surface concentrator (2) is replaced by an inclined surface concentrator (13), and the remaining parts are the same as the original embodiment.

[0028] Figure 7 A cross-sectional view of the basic unit with seawater storage tanks for marine agro-ecological membranes based on solar concentration and membrane distillation processes. As can be seen from the figure, in this embodiment, a seawater storage tank (14) is added at the lower end of the two fresh water collection tanks (4) of the original embodiment, and all the other parts are indistinguishable from the original embodiment. Then the device can be moved from the sea to the land, which is convenient for use and management.

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Abstract

The invention discloses a solar energy focus and membrane distillation process based sea agriculture ecological membrane, and belongs to the field of solar energy focus heat collection and ecological agriculture. The sea agriculture ecological membrane includes curved surface condensers, solar-heat converters, ecological agriculture planting grooves, fresh water collection grooves, sea distillation membranes, porous material water absorption devices, and ecological agriculture water controllers, which are connected; the solar energy focus and membrane distillation process based sea agriculture ecological membrane can be used in a single manner and in a combined manner; sun light comes to surfaces of the curved surface condensers, and then reaches the solar-heat converters via multiple reflections to be converted into heat energy; sides surfaces of the solar-heat converters are fixedly provided with the porous material water absorption devices, wherein the absorbed sea water is heated and evaporated by the solar-heat converters, the evaporated sea water enters over the fresh water collection grooves to be condensed via the sea water distillation membranes near the porous material water absorption devices, and the condensed water is utilized by crops through water absorption materials on the side surfaces of the ecological agriculture planting grooves or is collected in the fresh water collection grooves; and the collected water is utilized by plants in the ecological agriculture planting grooves through the ecological agriculture water controllers.

Description

Technical field [0001] The invention relates to a marine agricultural ecological membrane based on solar energy concentration and membrane distillation process. The offshore agricultural ecological membrane based on solar concentration and membrane distillation process is a device that uses the principle of concave mirror concentration and the characteristics of distillation membrane that only allows hot water vapor to pass through to separate fresh water from seawater and carry out agricultural production. It belongs to the technical field of solar seawater desalination and ecological agriculture. Background technique [0002] It is China's basic national condition to have more people and less land, so agricultural production is an important factor restricting the development of our country. Although the agricultural status quo in our country has undergone tremendous changes after the implementation of the economic system reform in the countryside, there are still many pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G9/02A01G27/02C02F1/14C02F103/08
CPCY02A20/212A01G9/02A01G27/02C02F1/14C02F2103/08
Inventor 李佳敏康慧芳郑宏飞崔丹丹
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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