Photovoltaic solar-driven intermittent adsorption type air-to-water system for mountainous region

Abstract

The utility model relates to a photovoltaic solar-driven intermittent adsorption type air water taking system for mountainous regions. The photovoltaic solar-driven intermittent adsorption type air water taking system for the mountain land comprises a heat collection plate, a condenser, a primary water collection tank, a fan, a photovoltaic plate and a shell. The top of an inner cavity of the shell is provided with a heat collection plate, an adsorbent is arranged in the heat collection plate, the lower side of the heat collection plate is provided with a condenser through the shell, the lower side of the condenser is provided with a fan through the shell, one side of the shell is obliquely provided with a photovoltaic panel used for supplying energy to the fan, and the shell is further internally provided with a primary water collection tank. And the condenser is communicated with the primary water collecting tank through a water collecting pipe. On the premise of efficient water taking, the structure of the system is simplified, the cost is reduced, and operation is more convenient due to the simple operation mode; the hydrophilic novel composite activated carbon fiber is used as an adsorbent, so that the adsorption capacity of moisture is greatly improved; due to the efficient structural design, the rate in the adsorption and desorption processes is increased.

Description

Technical Field

[0001] The present application relates to the technical field of solar thermal utilization, and in particular to a solar-driven intermittent adsorption air water intake system for mountain photovoltaics. Background Art

[0002] With the rapid development of renewable energy, the scale of photovoltaic power generation is increasing. Land resources suitable for site construction are becoming increasingly scarce, leaving mountainous areas with complex terrain as a key resource for development. While mountain photovoltaic construction presents certain challenges and increased costs, it offers relatively low land costs and centralized management. However, water resources are relatively scarce in remote mountainous areas, and clean water, in particular, is particularly crucial for mountain photovoltaic construction workers. Currently, most mountain photovoltaic construction workers rely on long-distance water trucks for water transportation, but this is costly, necessitating the development of new water supply methods. Air-to-water extraction, a widely applicable, lightweight, clean, and energy-saving water extraction technology, could be an effective solution to this problem.

[0003] Extracting fresh water from the air essentially involves converting water vapor into liquid water for collection. This conforms to the natural water cycle, and nature has a strong recycling and regeneration capacity. Lost water is constantly replenished, so it does not disrupt the atmospheric water balance or have a substantial adverse impact on the environment. Furthermore, because atmospheric water is composed of water vapor, the water quality is clean and hygienic, making it ideal for household or agricultural use. Typical air-to-water extraction methods include fog capture, dew collection, compression condensation extraction, and adsorption-based air-to-water extraction. The first three are limited by climatic conditions and only achieve significant water extraction efficiency when the air humidity is extremely high. Currently, most air-to-water extraction equipment uses compression condensation extraction, which has many drawbacks, such as high energy consumption and the use of environmentally unfriendly Freon refrigerants. This method will gradually be phased out. This patent proposes a solar-powered intermittent adsorption-based air-to-water extraction system to replace traditional compression condensation extraction, addressing water shortages in arid inland areas. Utility Model Content

[0004] In order to solve or partially solve the problems existing in the relevant technologies, the present application provides a solar-driven intermittent adsorption air water extraction system for mountain photovoltaics. Through efficient solar energy utilization combined with adsorption materials with excellent adsorption and desorption properties, energy-saving and environmentally friendly air water extraction is achieved under a reasonable structural design.

[0005] This application provides a solar-driven intermittent adsorption air water intake system for mountain photovoltaic power generation, which includes a heat collector 2, a condenser 4, a primary water collection tank 5, a fan 8, a photovoltaic panel 9, and a housing 10. The heat collector 2 is installed at the top of the inner cavity of the housing 10, and an adsorbent 3 is arranged inside the heat collector 2. The condenser 4 is installed under the heat collector 2 through the housing 10, and the fan 8 is installed under the condenser 4 through the housing 10. A photovoltaic panel 9 for supplying energy to the fan 8 is installed obliquely on one side of the housing 10. A primary water collection tank 5 is also installed inside the housing 10, and the condenser 4 and the primary water collection tank 5 are connected through a water collection pipe.

[0006] Optionally, in some embodiments, a condenser wind protection cover 1 is installed on the housing 10 at the top of the heat collector 2.

[0007] Optionally, in some embodiments, a secondary water collection tank 7 is also installed inside the housing 10, and a filter 6 is connected between the primary water collection tank 5 and the secondary water collection tank 7.

[0008] Optionally, in some embodiments, the inner cavity of the housing 10 is divided into an adsorption evaporation condensation chamber 11 and a heat insulation chamber 12. The adsorption evaporation condensation chamber 11 is located above the heat insulation chamber 12. The heat collector 2 is located inside the adsorption evaporation condensation chamber 11. The primary water collection tank 5, the fan 8, the filter 6, and the secondary water collection tank 7 are located inside the heat insulation chamber 12. The condenser 4 is located at the junction of the adsorption evaporation condensation chamber 11 and the heat insulation chamber 12. A heat insulation rubber ring 13 is arranged between the adsorption evaporation condensation chamber 11 and the heat insulation chamber 12. A ventilation door 14 is hinged on the side of the adsorption evaporation condensation chamber 11, and a knob switch 15 is installed. A heat insulation and reflective layer 16 is arranged on the outer layer of the heat insulation chamber 12.

[0009] Optionally, in some embodiments, a black chromium coating layer 17 is arranged on the upper surface of the heat collector 2, and heat conducting fins 18 are arranged on the lower surface. The adsorbent 3 is attached to the heat conducting fins 18, and the lower end of the heat conducting fins 18 is connected to a water collection tank 19.

[0010] The technical solution provided by this application may include the following beneficial effects:

[0011] On the premise of efficient water intake, this application simplifies the structure of the system, reduces costs, and the simple operation mode is more convenient for operation. A hydrophilic new composite activated carbon fiber is selected as the adsorbent, which greatly improves the water adsorption capacity. The efficient structural design improves the rate during the adsorption and desorption processes. And water intake can be achieved only by solar energy supply, which is green and environmentally friendly.

[0012] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit this application. Description of the Drawings

[0013] The above and other objects, features, and advantages of the present application will become more apparent by describing the exemplary embodiments of the present application in more detail with reference to the accompanying drawings. In the exemplary embodiments of the present application, the same reference numerals generally represent the same components.

[0014] Figure 1 It is a schematic internal structure diagram of a solar-driven intermittent adsorption air water intake system for mountain photovoltaic power generation shown in an embodiment of the present application;

[0015] Figure 2 It is a schematic structure diagram of a housing and a concentrating windproof cover shown in an embodiment of the present application;

[0016] Figure 3 It is a schematic structure diagram of a heat collecting plate shown in an embodiment of the present application.

[0017] Reference numerals:

[0018] 1, concentrating windproof cover; 2, heat collecting plate; 3, adsorbent; 4, condenser; 5, primary water collection tank; 6, filter; 7, secondary water collection tank; 8, fan; 9, photovoltaic panel; 10, housing, 11, adsorption evaporation condensation chamber; 12, heat insulation chamber; 13, heat insulation rubber ring; 14, ventilation door; 15, knob switch; 16, heat insulation reflective layer; 17, black chromium coating layer; 18, heat conduction fin; 19, water collection trough. Detailed implementation manners

[0019] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0020] It should be understood that although the terms "first", "second", "third", etc. may be used in the present application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.

[0022] Unless otherwise clearly specified and defined, terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0023] Adsorption-based air water extraction relies on the adsorption-desorption process of the adsorbent to collect condensed water, has a very wide humidity application window, is expected to solve the annual water supply problem in most arid regions, and provides clean fresh water resources for construction workers in remote mountain photovoltaic power stations.

[0024] In view of the above problems, the embodiment of the present application provides a solar-driven intermittent adsorption-based air water extraction system for mountain photovoltaic power stations. Through efficient solar energy utilization combined with an adsorbent material with excellent adsorption and desorption performance, energy-saving and environmental-friendly air water extraction is achieved under a reasonable structural design.

[0025] The technical solutions of the embodiments of the present application will be described in detail below with reference to the drawings.

[0026] See Figure 1 , the solar-driven intermittent adsorption-based air water extraction system for mountain photovoltaic power stations includes a heat collector 2, a condenser 4, a primary water collection tank 5, a fan 8, a photovoltaic panel 9, and a housing 10; the heat collector 2 is installed at the top of the inner cavity of the housing 10, an adsorbent 3 is arranged inside the heat collector 2, the condenser 4 is installed below the heat collector 2 through the housing 10, the fan 8 is installed below the condenser 4 through the housing 10, a photovoltaic panel 9 for supplying energy to the fan 8 is installed obliquely on one side of the housing 10, and a primary water collection tank 5 is also installed inside the housing 10. The condenser 4 and the primary water collection tank 5 are connected through a water collection pipe.

[0027] During operation, the adsorbent 3 in the heat collecting plate 2 adsorbs moisture in the air. When the sun rises during the day, the heat collecting plate 2 starts to heat up, heating the adsorbent 3, causing the moisture in the adsorbent 3 to evaporate and generate hot steam. This hot steam will condense into liquid water on the condenser 4 at its lower end, and then flow into the water collecting tank 5 to be collected. The photovoltaic panel 9 provides power for the fan 8, efficiently utilizing solar energy for energy supply, reducing energy consumption and being environmentally friendly. The fan 8 dissipates heat from the condenser 4, improving the condensation efficiency of the condenser. The upper surface of the condenser 4 is a hydrophilic and hydrophobic hybrid interface, and the lower surface is finned for enhanced heat dissipation, improving the condensation and water collection efficiency.

[0028] In some embodiments, a condenser windproof and light collecting cover 1 is installed on the outer shell 10 at the top of the heat collecting plate 2.

[0029] During operation, the top end of the condenser windproof and light collecting cover 1 is made of a Fresnel lens, and the surrounding is high-reflective aluminum plate. The area of the Fresnel lens on the top surface is twice the area of the heat collecting plate. Such light collection and heat collection double the heat collection area of the heat collecting plate without changing its original size, enhancing the heat collection ability. Moreover, the condenser windproof and light collecting cover 1 forms a sealed space above the heat collecting plate 2, reducing the heat loss of the heat collecting plate 2 to the outside.

[0030] In some embodiments, a secondary water collecting tank 7 is further installed in the outer shell 10, and a filter 6 is connected between the primary water collecting tank 5 and the secondary water collecting tank 7.

[0031] During operation, water is taken for different purposes through the primary water collecting tank 5, the filter 6 and the secondary water collecting tank 7.

[0032] In some embodiments, referring to Figure 2 , the inner cavity of the outer shell 10 is divided into an adsorption evaporation condensation chamber 11 and a heat insulation chamber 12. The adsorption evaporation condensation chamber 11 is located above the heat insulation chamber 12. The heat collecting plate 2 is located in the adsorption evaporation condensation chamber 11. The primary water collecting tank 5, the fan 8, the filter 6 and the secondary water collecting tank 7 are located in the heat insulation chamber 12. The condenser 4 is located at the junction of the adsorption evaporation condensation chamber 11 and the heat insulation chamber 12. A heat insulation rubber ring 13 is arranged between the adsorption evaporation condensation chamber 11 and the heat insulation chamber 12. A ventilation door 14 is hinged on the side of the adsorption evaporation condensation chamber 11, and a knob switch 15 is installed. The outer layer of the heat insulation chamber 12 is provided with a heat insulation and reflective layer 16.

[0033] During operation, the adsorption evaporation condensation chamber 11 is made of well - thermally - conductive copper, and its surface is chrome - plated and blackened, which can increase heat absorption and provide part of the heat for the evaporation condensation chamber, making the evaporation rate faster. The heat - insulation chamber 12 is made of stainless steel, and the lower part of the outer shell 10 is covered with a heat - insulation and reflective layer 16 to enhance the heat dissipation of the condenser 4 and improve the condensation efficiency. An insulating rubber ring 13 is placed between the adsorption evaporation condensation chamber 11 and the condenser 4 to prevent the upper part of the box body 10 of the condenser 4 from directly contacting and conducting heat to the condenser 4 during the evaporation condensation and water - collection process, which affects the condensation efficiency.

[0034] In some embodiments, referring to Figure 3 , a black chromium coating layer 17 is provided on the upper surface of the heat - collecting plate 2, and heat - conducting fins 18 are arranged on the lower surface. The adsorbent 3 is attached to the heat - conducting fins 18, and the lower end of the heat - conducting fins 18 is connected to a water - collecting tank 19.

[0035] During operation, the heat - collecting plate 2 is a chrome - plated copper plate. The heat - conducting fins 18 can increase the desorption rate of water vapor. The lower end of the heat - conducting fins 18 is connected to a water - collecting tank 19. The water - collecting tank 19 prevents the liquid droplets dripping after the adsorbent is saturated at night from falling onto the condenser 4, avoiding contamination of the condenser 4, and increasing the adsorption limit of the adsorbent 3 at night, improving the water - extraction amount. The adsorbent 3 is a composite activated carbon fiber, which is mainly made of activated carbon fiber and a hydrophilic composite polymer. This new hydrophilic adsorbent is prepared by the impregnation method (immersing the activated carbon fiber in a polyvinyl alcohol solution for 24 h and then drying, and then immersing it in a lithium chloride solution for 24 h and then drying).

[0036] The working process of this application:

[0037] This system mainly has two working processes: the adsorption process of water vapor at night and the evaporation condensation and water - collection process during the day.

[0038] At night, the air humidity is high and the temperature is low. The outside air flows into the device, and the moisture in the air is continuously adsorbed and collected by the adsorbent 3.

[0039] When the sun rises during the day, the heat - collecting plate 2 starts to heat up, heating the adsorbent 3, so that the moisture in the adsorbent 3 evaporates to generate hot steam. These hot steams will condense into liquid water on the condenser 4 at its lower end and thus be collected. The condensing and wind - proof cover 1 at the upper end of the heat - collecting plate 2 improves the heat - collecting efficiency of the heat - collecting plate 2 and also reduces the heat loss of the heat - collecting plate 2 to the outside. The fan 8 at the lower end of the condenser 4 dissipates heat from the condenser 4 to improve the condensation efficiency of the condenser 4. The photovoltaic panel 9 on the side provides electrical energy for the fan 8. Due to different water - taking purposes, for daily domestic water, it can be directly taken from the primary water - collecting tank 5 for direct use. For drinking water, it needs to pass through the filter 6 and then be taken from the secondary water - collecting tank 7.

[0040] Finally, it should also be noted that in this text, relationships such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms including, comprising or any other variant are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0041] The unit described as a separate component may or may not be physically separated, and the component shown as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0042] The embodiments of the present application have been described above. The above description is exemplary and not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, the practical application or the improvement of the technology in the market, or to enable other ordinary skill in the art in the technical field to understand the embodiments disclosed herein.

Claims

1. A solar-driven intermittent adsorption air water intake system for mountain photovoltaic, characterized in that: The described solar-driven intermittent adsorption air water intake system for mountain photovoltaic power generation includes a heat collector plate (2), a condenser (4), a primary water collection tank (5), a fan (8), a photovoltaic panel (9), and a housing (10); a heat collector plate (2) is installed at the top of the inner cavity of the housing (10), an adsorbent (3) is arranged inside the heat collector plate (2), a condenser (4) is installed below the heat collector plate (2) through the housing (10), a fan (8) is installed below the condenser (4) through the housing (10), a photovoltaic panel (9) for supplying energy to the fan (8) is inclinedly installed on one side of the housing (10), a primary water collection tank (5) is also installed inside the housing (10), and the condenser (4) and the primary water collection tank (5) are connected through a water collection pipe.

2. The solar-driven intermittent adsorption air water intake system for mountain photovoltaic according to claim 1, wherein: A concentrator and wind protection cover (1) is installed on the housing (10) at the top of the heat collector plate (2).

3. The solar-driven intermittent adsorption air water intake system for mountain photovoltaic according to claim 1 or 2, characterized in that: A secondary water collection tank (7) is also installed inside the housing (10), and a filter (6) is connected between the primary water collection tank (5) and the secondary water collection tank (7).

4. The solar-driven intermittent adsorption air water intake system for mountain photovoltaic according to claim 3, characterized in that: The inner cavity of the housing (10) is divided into an adsorption evaporation condensation chamber (11) and a heat insulation chamber (12). The adsorption evaporation condensation chamber (11) is located above the heat insulation chamber (12). The heat collector plate (2) is located inside the adsorption evaporation condensation chamber (11). The primary water collection tank (5), the fan (8), the filter (6), and the secondary water collection tank (7) are located inside the heat insulation chamber (12). The condenser (4) is located at the junction of the adsorption evaporation condensation chamber (11) and the heat insulation chamber (12). A heat insulation rubber ring (13) is arranged between the adsorption evaporation condensation chamber (11) and the heat insulation chamber (12). A ventilation door (14) is hinged on the side of the adsorption evaporation condensation chamber (11), and a knob switch (15) is installed. A heat insulation and reflective layer (16) is provided on the outer layer of the heat insulation chamber (12).

5. The solar-driven intermittent adsorption air water intake system for mountain photovoltaic according to claim 1, 2 or 4, characterized in that: A black chromium coating layer (17) is provided on the upper surface of the heat collector plate (2), heat conduction fins (18) are arranged on the lower surface, the adsorbent (3) is attached to the heat conduction fins (18), and the lower end of the heat conduction fins (18) is connected to a water collection trough (19).

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