Device for taking water from air for forestry irrigation

Abstract

The invention discloses an air water taking device for forestry irrigation, and belongs to the technical field of irrigation. The method is used for solving the problem of water shortage in tree planting in arid and water-deficient forest areas. Comprising a filter screen, a top cover, an automatic turnover mechanism, a flow guide pipe, a radiation heat absorption material, a barrel body and a solid adsorbent, the top cover is installed on the barrel body through the automatic turnover mechanism, the filter screen is installed at the upper end of an inner cavity of the barrel body, the solid adsorbent is arranged on the inner wall of the barrel body, the radiation heat absorption material covers the outer wall of the barrel body, the lower end of the barrel body is communicated with the flow guide pipe, and the automatic turnover mechanism is powered by a new energy power generation device. Through the wide humidity adsorption characteristic of the solid moisture absorbent, a distributed atmospheric water collection device cluster is constructed. The device can be deployed on the periphery of desertification land or a forest farm work station, and a stable water source is provided for a manual supplementary irrigation system or an automatic sprinkling irrigation system through a solar driven desorption technology.

Description

Technical Field

[0001] The present invention belongs to the technical field of irrigation, and particularly relates to an air water intake device for forestry irrigation. Background Art

[0002] At present, some air water intake devices, such as the air water intake and irrigation device for arid areas of ecological agriculture disclosed in Chinese invention patent CN222054160U, can, through the cooperation of an air water intake tank, an air intake groove, an air extraction fan, a dust-proof filter plate, an energy storage power supply, a solar panel, a semiconductor refrigeration sheet, a condensation plate, a diversion column, a water storage tank and a water pump, extract water from the air and irrigate agricultural trees in arid areas of ecological agriculture with scarce water resources. However, its water intake method is condensation water intake, and the water intake effect is not good. Although it uses a solar panel for power supply, there are many energy-consuming mechanisms, the energy supply pressure of the device is large, the device structure is complex, and the stability is difficult to guarantee in actual use.

[0003] Chinese invention patent CN118814912A discloses an air water intake device and an air water intake device. The device includes a water-absorbing gel, a semiconductor refrigeration device and a water-containing cavity. The device captures water in the air by means of the water-absorbing gel, then releases the water by heating the hot end of the semiconductor refrigeration sheet, and condenses the water at the cold end to obtain liquid water. The water intake method of this device is gel adsorption water intake, and the device is light and easy to carry, but it requires external power supply.

[0004] Chinese invention patent CN216931014U discloses a green plant laying and cultivation device for desertification control that can be deeply cultivated. A desert water intake device is arranged inside the green plant cultivation device. The desert water intake device can absorb water from the air at night and release the water after being heated during the day. However, when the water intake device of this device releases water during the day, it is an open structure connected to the outside world, and the water vapor generated by heating will escape to the outside, resulting in insufficient collection of water vapor and low water intake efficiency.

[0005] Mountain forest areas are large, and it is difficult to cover the power supply. Moreover, the weather environment is changeable and the geographical environment is complex. The above-mentioned water intake devices are often difficult to adapt to the actual working environment. Summary of the Invention

[0006] In order to solve the water shortage problem faced by tree planting in arid and water-scarce forest areas, the present invention further provides an air water intake device for forestry irrigation, which extracts water from the air, saving water resources and labor costs.

[0007] The technical solution adopted by the present invention is as follows:

[0008] An air water intake device for forestry irrigation, comprising a filter screen, a top cover, an automatic flipping mechanism, a diversion pipe, a radiation heat absorption material, a barrel body and a solid adsorbent; the top cover is installed on the barrel body through the automatic flipping mechanism, the filter screen is installed at the upper end of the inner cavity of the barrel body, the solid adsorbent is arranged on the inner wall of the barrel body, the radiation heat absorption material covers the outer wall of the barrel body, the lower end of the barrel body is communicated with the diversion pipe, the automatic flipping mechanism is powered by a new energy power generation device, and the start of the automatic flipping mechanism is controlled by a photoresistor module.

[0009] The present invention has the following beneficial effects compared with the prior art:

[0010] 1. By the wide humidity adsorption characteristics of the solid moisture absorbent, the present invention constructs a distributed atmospheric water collection device cluster. The device can be deployed around desertified land or forestry workstations, and through solar-driven desorption technology, it provides a stable water source for artificial supplementary irrigation or automatic sprinkler irrigation systems.

[0011] 2. Compared with the traditional irrigation method that relies on groundwater, the water intake source of the present invention is air. The solid adsorbent of the present invention can achieve stable adsorption binding within a wide humidity range (RH 20%-80%), saving a large amount of water resources. Only periodic detection and replacement of the solid adsorbent material are required, effectively reducing the ecological governance cost.

[0012] 3. The start of the automatic flipping mechanism of the present invention is controlled by a photoresistor, which has two advantages. First, the current air water intake devices are generally of an open structure. This structure is conducive to the inflow of air for adsorption, but when desorbing, the water vapor formed by heat desorption is also easily released from the device and cannot be completely condensed into liquid water by the device for collection. In the present invention, the top cover is open during adsorption, which is an open structure, and the top cover is closed during desorption, forming a closed but not airtight structure (not airtight to prevent internal pressure from increasing). It can effectively retain the water vapor formed during heat desorption in the device for condensation. In addition, the closed structure is also conducive to the increase of the internal temperature, which is beneficial to water desorption. Second, the present invention can ensure that both the adsorption and desorption processes start and work under suitable working conditions, which is very useful for improving the efficiency of the device.

[0013] 4. The heat and condensation structure of the present invention is ingeniously designed, making the moisture desorption and condensation processes efficient. The radiation heat-absorbing material on the outer side of the barrel absorbs heat and warms up during the day, and conducts the heat through the barrel wall to the solid adsorbent on the inner side of the barrel, causing the moisture in the solid adsorbent on the inner wall to be heated and turn into water vapor for desorption. The condensation structure of the present invention is the conical barrel below the device and the heat dissipation fins arranged in a circular pattern outside the conical barrel. The conical barrel and the fins are buried in the soil. On the one hand, it can fix the device, and on the other hand, it can keep the conical barrel at a relatively low temperature. Currently, the condensation end of the water intake device generally relies on natural convection for heat dissipation, but during the day, the device is irradiated by sunlight, which causes the overall temperature to rise, and the low temperature of the condensation end is not obvious, resulting in poor condensation effect. Relevant research has found that high temperatures during the day can cause the temperature of the condensation wall surface to be too high to condense water vapor. However, the bottom of the present invention is buried in the soil and relies on the soil for heat conduction and heat dissipation. It is not irradiated by sunlight during the day, which can effectively maintain the low temperature of the condensation end and improve the condensation efficiency.

[0014] 5. The energy consumption of the present invention is effectively reduced, and the energy supply devices are diverse and replaceable. The only mechanism that requires electrical energy supply in the present invention is the automatic flipping mechanism, which has a small demand for energy. It can meet the energy demand only by relying on the solar power supply board at the top cover without additional power supply. In addition, the present invention can replace solar power supply with a thermoelectric generation device according to the situation (or use both simultaneously), and utilize the temperature difference between the radiation heat-absorbing material on the outer side of the barrel during the day and the conical barrel on the lower side of the device for thermoelectric generation. On the other hand, the present invention has a simple structure, few components, is easy to install, plug-and-play, and has strong stability, and is suitable for various complex planting environments. Description of the Drawings

[0015] Figure 1 is the external axonometric drawing of the present invention;

[0016] Figure 2 is the internal sectional view of the present invention;

[0017] Figure 3 is the air water intake flow chart of the present invention;

[0018] Figure 4 is the schematic diagram of thermoelectric generation of the present invention;

[0019] Figure 5 is the schematic diagram of the plug-in filter net of the present invention;

[0020] Figure 6 is the schematic diagram of the snap-in filter net of the present invention;

[0021] Figure 7 is the schematic diagram of multi-stage series connection of the present invention;

[0022] Figure 8 is the principle sketch of the automatic flipping mechanism of the present invention;

[0023] Among them: 1. Filter net; 2. Top cover; 3. Solar power panel; 4. Automatic flipping mechanism; 5. Heat-conducting fins; 6. Diversion pipe; 7. Radiation heat-absorbing material; 8. Barrel body; 9. Solid adsorbent; 10. Transmission line; 11. Hot-end patch; 12. Cold-end patch; 13. Snap-in filter net; 14. Filter net slot; 15. Intermediate-stage adsorption cylinder; 151. Connection port; 16. Conical cylinder slot. Detailed implementation mode

[0024] In order to better understand the purpose, structure and function of the present invention, the following will further describe the present invention in detail with reference to the accompanying drawings.

[0025] The present invention provides an air water intake device for forestry irrigation. This device is used to extract water from the air and irrigate trees in water-scarce and arid areas of ecological forestry. Through the cooperation of the filter net 1, top cover 2, solar power panel 3, automatic flipping mechanism 4, heat-conducting fins 5, diversion pipe 6, radiation heat-absorbing material 7, barrel body 8, and solid adsorbent 9, it can extract water from the air and irrigate trees in water-scarce and arid areas of ecological forestry, thereby improving the survival rate of agricultural trees and reducing the burden on forestry workers of directly transporting water resources for tree irrigation.

[0026] As Figures 1 to 3 shown, an air water intake device for forestry irrigation includes a filter net 1, a top cover 2, an automatic flipping mechanism 4, a diversion pipe 6, a radiation heat-absorbing material 7, a barrel body 8, and a solid adsorbent 9; the top cover 2 is installed on the barrel body 8 through the automatic flipping mechanism 4. To prevent sand and debris from entering the barrel body 8 when opening the cover at night, the filter net 1 is detachably installed at the upper end of the inner cavity of the barrel body 8 for easy replacement. The solid adsorbent 9 is arranged on the inner wall of the barrel body 8, the radiation heat-absorbing material 7 covers the outer wall of the barrel body 8, the lower end of the barrel body 8 is communicated with the diversion pipe 6, the automatic flipping mechanism 4 is powered by a new energy power generation device and is controlled by a photosensitive resistor module 405 to start the automatic flipping mechanism 4.

[0027] As Figure 8As shown in the figure, the automatic flipping mechanism 4 includes a charging management module 401, a lithium battery pack 402, a buck module 403, a single-chip microcomputer 404, a photoresistor module 405, and a servo 406; the new energy power generation device (solar panel 3 or thermoelectric power generation device) is connected to the charging management module 401, and the charging management module 401 is connected to the lithium battery pack 402; the lithium battery pack 402 is connected to the buck module 403; the buck module 403 uses a parallel circuit to supply power to the servo 406 and the single-chip microcomputer 404 respectively; the power supply pin of the single-chip microcomputer 404 is connected to the positive pole of the photoresistor module 405; the single-chip microcomputer 404, the servo 406, and the photoresistor module 405 are grounded in common; the signal output terminal of the photoresistor module 405 is connected to the signal input pin of the single-chip microcomputer 404; the signal output pin of the single-chip microcomputer 404 is connected to the signal input line of the servo 406; the servo 406 is mechanically fixed to the top cover 2, and the single-chip microcomputer 404 has a pre-set program inside, and outputs the required control signal according to the input signal to control the operation of the servo 406, so as to realize the function of flipping the top cover of the device according to the design requirements.

[0028] The present invention uses a photoresistor module to control the automatic flipping mechanism 4. The efficiency of water intake from the air mainly depends on the current air humidity. The higher the air humidity, the higher the water intake efficiency. Temperature is the core factor affecting air humidity. When the temperature rises, the water vapor capacity of the air increases (the saturated water vapor pressure increases), and the relative humidity decreases; conversely, when the temperature drops, the water holding capacity of the air weakens, and the relative humidity increases. The temperature of the natural environment is mainly determined by sunlight irradiation, and the humidity at night is significantly higher than that during the day. Using a photoresistor to control the switch of the automatic flipping mechanism 4 of the top cover can open the top cover when the sunlight is weak (or at night), that is, when the temperature is low and the humidity is high, to adsorb water from the air; when the sunlight is strong, that is, when the temperature is high and the humidity is low, the cover is closed for desorption. Such a design has two advantages. First, the current air water intake devices are generally of an open structure. Such a structure is conducive to the inflow of air for adsorption, but when desorbing, the water vapor formed by heat desorption is also likely to run out of the device and cannot be completely condensed into liquid water by the device for collection. In the present invention, the top cover is open during adsorption, which is an open structure, and the top cover 2 is closed during desorption, forming a closed but not airtight structure (not airtight to prevent the internal pressure from increasing), which can effectively retain the water vapor formed during heat desorption in the device for condensation. In addition, the closed structure is also conducive to the increase of the internal temperature and is conducive to water desorption; second, the present invention can ensure that both the adsorption and desorption processes start and work under suitable working conditions, which is very useful for improving the efficiency of the device.

[0029] As Figure 1 、 Figure 2 As shown in the figure, the upper end of the barrel 8 is a cylindrical part, and the lower end is a conical part.

[0030] As Figure 1 、 Figure 2As shown, heat-conducting fins 5 are provided on the outer surface of the conical part of the barrel body 8. The heat-conducting fins 5 are arranged circumferentially around the conical part.

[0031] As Figure 1 , Figure 2 shown, when the new energy power generation device uses the solar panel 3, the solar panel 3 is installed on the inner surface when the top cover 2 is closed, and the solar panel 3 supplies power to the automatic flipping mechanism 4.

[0032] When the new energy power generation device uses a thermoelectric power generation device, a hot-end patch 11 of the thermoelectric power generation device is attached to the outer surface of the upper end of the barrel body 8, and a cold-end patch 12 of the thermoelectric power generation device is attached to the outer surface of the lower end of the barrel body 8. The thermoelectric power generation device supplies power to the automatic flipping mechanism 4 through the power transmission line 10.

[0033] As Figure 4 shown, the solar panel 3 can be replaced with a thermoelectric power generation device or used simultaneously according to the actual environment in which the device is used. In the figure, structure 11 is the hot-end patch of the thermoelectric power generation device, structure 12 is the cold-end patch, and structure 10 is the power transmission line, which is used to transmit the current generated by the thermoelectric power generation device to the lithium battery pack 402 of the automatic flipping mechanism 4 for storage.

[0034] In addition to the plug-in filter screen that can be conveniently replaced, the filter screen 1 of this device can also use a snap-in filter screen. The schematic diagram of the plug-in type is shown in Figure 5 , and the schematic diagram of the snap-in type is shown in Figure 6 . Structure 13 is the snap-in filter screen, and structure 14 is the filter screen slot provided on the inner surface of the barrel body 8. The filter screen slot 14 is semi-open with a diameter as the boundary, half open and the other half with a groove, so that the filter screen 1 can be installed in the barrel body 8 in a plug-in or snap-in manner.

[0035] As Figure 7 shown, in addition to being used alone, this device can also use multiple single-stage adsorption cylinders in series. Using multiple adsorption cylinders in series can effectively increase the adsorption capacity, and the number of series can be determined according to the actual use situation.

[0036] The barrel body 8 adopts a split structure, and an intermediate-stage adsorption cylinder 15 is connected in series between the cylindrical part and the conical part of the barrel body 8. Both the lower end of the cylindrical part and the lower end of the conical part adopt connection ports 151. The diameter of the connection port 151 is smaller than the diameters of the cylindrical part and the intermediate-stage adsorption cylinder 15, and there are protrusions at the ends. The protrusion of the cylindrical part can be snapped into the filter screen slot 14, and the protrusion of the intermediate-stage adsorption cylinder 15 can be snapped into the conical cylinder slot 16 at the upper end of the conical part; a solid adsorbent 9 is arranged inside the intermediate-stage adsorption cylinder 15, and a radiation heat-absorbing material 7 is arranged outside.

[0037] The specific use process of the present invention is as follows:

[0038] The solar power panel 3 can supply electrical energy to the automatic flipping mechanism 4 to complete the automatic opening and closing of the top cover 2.

[0039] The radiation heat-absorbing material 7 can transfer the absorbed heat to the solid adsorbent 9 through the barrel 8, so that the solid adsorbent 9 reaches the desorption temperature of water.

[0040] The heat-conducting fins 5 can dissipate heat, reducing the temperature of the lower conical part of the barrel 8 of the device to complete the condensation of water vapor.

[0041] The working process of the device is as follows: The application scenario of this device is in a water-scarce forest area. The solid adsorbent 9 is used to adsorb moisture in the air, and the water is desorbed and used for irrigating trees. When the device is in use, the lower conical part of the barrel 8 and the heat-conducting fins 5 need to be buried in the soil, and there is no obvious obstruction above the device. The diversion pipe 6 is buried in the soil and led to the roots of the trees. The solar power panel 3 provides electrical energy for the automatic flipping mechanism 4.

[0042] The specific working process is as follows: At night, the automatic flipping mechanism 4 opens the top cover 2. The humid air at night passes through the filter screen 1 and enters the barrel 8, coming into contact with the solid adsorbent 9 fixedly connected to the barrel 8. The solid adsorbent 9 absorbs sufficient moisture during this process. During the day, the automatic flipping mechanism 4 closes the top cover 2, forming a closed space inside the device. The radiation heat-absorbing material 7 on the outer side of the barrel 8 absorbs heat during the day under sunlight irradiation, increasing the temperature inside the device. The heat is conducted to heat the solid adsorbent 9 material on the inner side of the barrel 8, and the moisture in the adsorbent material is thermally desorbed into water vapor. At this time, the above-ground part of the device is irradiated by sunlight, while the underground part is buried in the soil and the heat-conducting fins 5 dissipate heat, making the temperature of the underground part of the device lower than the water vapor condensation temperature. The water vapor condenses into liquid water here and flows along the conical wall surface to the diversion pipe 6. The water flows through the diversion pipe 6 and is transported to the bottom of the tree to complete the irrigation of the tree.

[0043] In the automatic flipping mechanism 4 of this device, a photoresistor module 405 is installed inside. The servo motor 406 of the automatic flipping mechanism 4 is automatically controlled by the photoresistor module 405 to sense the light intensity, realizing the functions of opening the cover at night and closing the cover during the day for the device. The electrical energy required by the automatic flipping mechanism 4 is supplied by the internal lithium battery pack 402, and the electrical energy of the lithium battery pack 402 is supplied by the solar power panel 3 placed on the top cover 2.

[0044] It can be understood that the present invention is described through some embodiments. Those skilled in the art know that without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. An air water intake device for forestry irrigation, characterized in that: The invention comprises a filter (1), a top cover (2), an automatic turning mechanism (4), a flow guide (6), a radiation heat absorbing material (7), a barrel (8) and a solid adsorbent (9); the top cover (2) is mounted on the barrel (8) through the automatic turning mechanism (4); the filter (1) is mounted on the upper end of the inner cavity of the barrel (8); the solid adsorbent (9) is arranged on the inner wall of the barrel (8); the radiation heat absorbing material (7) covers the outer wall of the barrel (8); the lower end of the barrel (8) is connected to the flow guide (6); the automatic turning mechanism (4) is powered by a new energy power generation device, and the activation of the automatic turning mechanism (4) is controlled by a photoresistor module (405).

2. The air water intake device for forestry irrigation according to claim 1 is characterized in that: The barrel body (8) has a cylindrical upper end and a conical lower end.

3. The air water intake device for forestry irrigation according to claim 2, characterized in that: The outer surface of the conical portion of the barrel body (8) is provided with heat-conducting fins (5).

4. The air water intake device for forestry irrigation according to claim 1, characterized in that: When the new energy power generation device adopts a solar power generation panel (3), the solar power generation panel (3) is installed on the inner surface of the top cover (2) when it is closed, and the solar power generation panel (3) supplies power to the automatic flip mechanism (4).

5. An air water intake device for forestry irrigation according to claim 1 or 4, characterized in that: When the new energy power generation device adopts a temperature difference power generation device, the upper outer surface of the barrel body (8) is affixed with a hot end patch (11) of the temperature difference power generation device, and the lower outer surface of the barrel body (8) is affixed with a cold end patch (12) of the temperature difference power generation device. The temperature difference power generation device supplies power to the automatic turning mechanism (4) through a transmission line (10).

6. The air water intake device for forestry irrigation according to claim 2, characterized in that: A filter screen slot (14) is provided at the upper end of the barrel body (8), and the filter screen slot (14) is half-open with a diameter as a boundary, one half is open and the other half has a groove, so that the filter screen (1) can be installed in the barrel body (8) in a plug-in or plug-in manner.

7. The air water intake device for forestry irrigation according to claim 2, characterized in that: The barrel body (8) adopts a split structure, and an intermediate-stage adsorption cylinder (15) is connected in series between the cylindrical part and the conical part of the barrel body (8). The lower end of the cylindrical part and the lower end of the conical part both adopt a connecting port (151). The diameter of the connecting port (151) is smaller than the diameter of the cylindrical part and the intermediate-stage adsorption cylinder (15), and the end is provided with a protrusion. The protrusion of the cylindrical part can be inserted into the filter screen slot (14), and the protrusion of the intermediate-stage adsorption cylinder (15) can be inserted into the conical cylinder slot (16) at the upper end of the conical part. A solid adsorbent (9) is arranged inside the intermediate-stage adsorption cylinder (15), and a radiation heat-absorbing material (7) is arranged outside.

8. The air water intake device for forestry irrigation according to claim 1, characterized in that: The automatic flipping mechanism (4) comprises a charging management module (401), a lithium battery pack (402), a voltage reduction module (403), a single chip computer (404), a photoresistor module (405) and a steering gear (406); the new energy power generation device is connected to the charging management module (401), the charging management module (401) is connected to the lithium battery pack (402); the lithium battery pack (402) is connected to the voltage reduction module (403); the voltage reduction module (403) uses a parallel circuit to respectively supply power to the steering gear (406) and the single-chip microcomputer (404) are powered; the power pin of the single-chip microcomputer (404) is connected to the positive electrode of the photoresistor module (405); the single-chip microcomputer (404), the steering gear (406), and the photoresistor module (405) are grounded in the same line; the signal output end of the photoresistor module (405) is connected to the signal input pin of the single-chip microcomputer (404); the signal output pin of the single-chip microcomputer (404) is connected to the signal input line of the steering gear (406); and the steering gear (406) is mechanically fixed to the top cover (2).

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