Air fertilizer machine device capable of directly capturing CO2 from air

Abstract

The utility model discloses an air fertilizer machine device capable of directly trapping CO2 from air. The device comprises an adsorption air inlet pipeline, an adsorption air outlet pipeline, an adsorption air inlet valve, an adsorption air outlet valve, a desorption air inlet pipeline, a desorption air outlet pipeline, a desorption air inlet valve, a desorption air outlet valve, a heat exchanger, an air electric heater, a centrifugal fan, a CO2 trapping tower, a CO2 humidifying adsorption material, a drain valve, a drain outlet, an atomization humidifier and a water tank. The atomization humidifier, the water tank and the supporting frame are placed in the greenhouse. The heat exchanger and the air electric heater are used for heating the air and reducing the relative humidity of the air, and the dry hot air is brought into the CO2 trapping tower by virtue of the centrifugal fan for adsorption; in the desorption process, water mist sprayed by the atomization humidifier enters from the top of the CO2 capture tower, and desorbed CO2 is conveyed into the greenhouse from the bottom of the CO2 capture tower, so that the CO2 concentration in the greenhouse is improved, and photosynthesis and growth of crops are promoted.

Description

Technical Field

[0001] The utility model relates to the technical field of CO2 gas fertilizer application in greenhouse, and specifically relates to a direct air capture CO2 gas fertilizer machine device. Background Art

[0002] In a closed greenhouse, during the growth process of crops, the lack of CO2 will cause the crops to be in a "starvation" state for a long time, directly affecting their normal photosynthesis, resulting in problems such as poor disease resistance and low yield of crops.

[0003] Currently, the application of direct air carbon capture technology has been developed to promote crop production. For example, the Chinese utility model patent with the authorization announcement number CN215602232U and the authorization announcement date of January 25, 2022 discloses a direct air carbon capture system for agriculture, and specifically discloses that the system includes an air inlet pipeline, an intake fan, an air exhaust pipeline, a carbon capture component, a humidification pipeline, a water tank, a humidification pump, a steam-water separator, a first air exchange pipeline, an air exchange fan, and a second air exchange pipeline, etc. During the desorption process, the first air exchange fan transports the gas in the agricultural cultivation workshop to the carbon capture component, and the water tank and the humidification pump supply water liquid to the carbon capture component through the humidification pipeline to realize CO2 desorption.

[0004] In the existing direct air carbon capture system for agriculture, a water tank is provided and the water tank is placed outdoors, which is likely to cause the phenomenon of water tank icing in winter. Secondly, the characteristic of the CO2 variable humidity adsorption material is to adsorb in an environment with relatively low relative humidity and release CO2 when the relative humidity increases. The above-mentioned utility model patent does not have a device for reducing the relative humidity, which will greatly reduce the adsorption amount and adsorption efficiency of the adsorption material, especially in cold or humid weather. Summary of the Invention

[0005] In order to solve the problems existing in the above-mentioned prior art, the purpose of the utility model is to provide a direct air capture CO2 gas fertilizer machine device to solve the problems such as water tank icing in winter and high air humidity during the adsorption process.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A direct air capture CO2 gas fertilizer machine device includes an adsorption intake pipeline 1-1, an adsorption outlet pipeline 1-2, a heat exchanger 2, an air electric heater 3, a centrifugal fan 5, an adsorption intake valve 6-1, an adsorption outlet valve 6-2, a CO2 capture tower 7, an adsorption intake port 8-1, an adsorption outlet port 8-2, a CO2 humidity swing adsorption material 9, an atomizing humidifier 13, a built-in fan 14, a water tank 15, a desorption intake pipeline 16-1, a desorption outlet pipeline 16-2, a desorption intake valve 17-1, a desorption outlet valve 17-2, a desorption intake port 18-1, a desorption outlet port 18-2, a drain valve 19, a drain port 20, and a greenhouse 22. Air enters through the inlet of the adsorption intake pipeline 1-1. The adsorption intake pipeline 1-1 is sequentially connected in series with a heat exchanger 2, an air electric heater 3, a centrifugal fan 5, and an adsorption intake valve 6-1. The outlet of the adsorption intake pipeline 1-1 is connected to the adsorption intake port 8-1 at the bottom of the CO2 capture tower 7. The adsorption outlet pipeline 1-2 is provided with an adsorption outlet valve 6-2. The inlet of the adsorption outlet pipeline 1-2 is connected to the adsorption outlet port 8-2 at the top of the CO2 capture tower 7. The desorption intake pipeline 16-1 is provided with a desorption intake valve 17-1. One end of the desorption intake pipeline 16-1 is connected to the desorption intake port 18-1 at the top of the CO2 capture tower 7, and the other end is connected to the atomizing humidifier 13. The desorption outlet pipeline 16-2 is provided with a desorption outlet valve 17-2. One end of the desorption outlet pipeline 16-2 is connected to the desorption outlet port 18-2 at the bottom of the CO2 capture tower 7, and the other end leads into the greenhouse 22. The CO2 humidity swing adsorption material 9 is arranged in the CO2 capture tower 7. A drain valve 19 and a drain port 20 are arranged at the bottom of the CO2 capture tower 7. The atomizing humidifier 13 is connected to the water tank 15 and is located inside the greenhouse 22 to prevent the water in the atomizing humidifier 13 and the water tank 15 from freezing in winter. The atomizing humidifier 13 is equipped with a built-in fan 14 and a water tank 15, and can blow the atomized water mist into the CO2 capture tower 7. Under the dual action of gravity and the built-in fan 14, the water mist penetrates into the CO2 humidity swing adsorption material 9 in the CO2 capture tower 7, accelerating the wetting and CO2 desorption process. The CO2 generated by desorption is transported from the bottom of the CO2 capture tower 7 into the greenhouse 22.

[0008] Air is passed through the shell side of the heat exchanger 5, and hot water or hot gas is passed through the tube side for heat exchange. The hot water or hot gas in the tube side is the hot water in the underground hot spring or the high-temperature waste water and waste gas from industry, improving the energy utilization efficiency.

[0009] The electric energy of the air electric heater 3 is supplied by a solar panel 4, reducing the use cost and the emission of greenhouse gases.

[0010] The atomizing humidifier 13 and the water tank 15 are placed on the support frame 21 inside the greenhouse 22. The mist outlet of the atomizing humidifier 13 is flush with the desorption air inlet 18-1 at the top of the CO2 capture tower 7 and is connected through the desorption air inlet pipeline 16-1.

[0011] A material rack 10 is built inside the CO2 capture tower 7. The material rack 10 is connected by a porous plate 11 and a column 12. The number of porous plates 11 is one layer or multiple layers, and the CO2 humidity swing adsorption material 9 is placed on the porous plate 11.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, the heat exchanger and the air electric heater are used in combination to heat the air, reducing the relative humidity of the air and increasing the adsorption capacity and adsorption efficiency of the CO2 humidity swing adsorption material.

[0014] 2. In the present utility model, the atomizing humidifier and its supporting water tank are placed inside the greenhouse, which can effectively prevent the water in the water tank from freezing in winter. In addition, the water mist sprayed by the atomizing humidifier enters from the top of the CO2 capture tower and penetrates downward to the CO2 humidity swing adsorption material under the dual action of the built-in fan and gravity, which can accelerate the wetting and desorption processes.

[0015] 3. In the present utility model, the heat exchanger uses low-grade energy sources such as hot water in the underground hot spring or industrial waste water and waste gas to heat the air, improving the energy utilization efficiency.

[0016] 4. In the present utility model, the air electric heater is powered by a solar panel, reducing greenhouse gas emissions and lowering the usage cost. Description of the Drawings

[0017] Figure 1 is a schematic structural diagram of the device of the present utility model.

[0018] Figure 2 is a schematic structural diagram of the material rack in the present utility model. Detailed Embodiments

[0019] The following combines the drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model but are not used to limit the scope of the present utility model.

[0020] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "left", "right", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings of the present utility model. It is only for describing the present utility model and simplifying the description, rather than indicating or implying that the elements 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 utility model. In the description of the embodiments of the present utility model, it should be noted that unless otherwise clearly specified and limited, terms such as "set", "include", etc. should be understood in a broad sense.

[0021] As Figure 1 and Figure 2 shown, the present utility model provides a CO2 direct air capture gas fertilizer machine device, including an adsorption inlet gas pipeline 1-1, an adsorption outlet gas pipeline 1-2, a heat exchanger 2, an air electric heater 3, a solar panel 4, a centrifugal fan 5, an adsorption inlet valve 6-1, an adsorption outlet valve 6-2, a CO2 capture tower 7, an adsorption inlet 8-1, an adsorption outlet 8-2, a CO2 variable humidity adsorption material 9, a material rack 10, a perforated plate 11, a column 12, an atomizing humidifier 13, an internal fan 14, a water tank 15, a desorption inlet gas pipeline 16-1, a desorption outlet gas pipeline 16-2, a desorption inlet valve 17-1, a desorption outlet valve 17-2, a desorption inlet 18-1, a desorption outlet 18-2, a drain valve 19, a drain port 20, a support frame 21, and a greenhouse 22; air enters from the inlet of the adsorption inlet gas pipeline 1-1, and the adsorption inlet gas pipeline 1-1 is sequentially connected in series with a heat exchanger 2, an air electric heater 3, a centrifugal fan 5, and an adsorption inlet valve 6-1 from left to right. The right end outlet of the adsorption inlet gas pipeline 1-1 is connected to the adsorption inlet 8-1 at the bottom of the CO2 capture tower 7; the adsorption outlet gas pipeline 1-2 is connected in series with an adsorption outlet valve 6-2, and the right end inlet of the adsorption outlet gas pipeline 1-2 is connected to the adsorption outlet 8-2 at the top of the CO2 capture tower 7; the desorption inlet gas pipeline 16-1 is provided with a desorption inlet valve 17-1, the left end of the desorption inlet gas pipeline 16-1 is connected to the desorption inlet 18-1 at the top of the CO2 capture tower 7, and the other end is connected to the atomizing humidifier 13; the desorption outlet gas pipeline 16-2 is provided with a desorption outlet valve 17-2, the left end of the desorption outlet gas pipeline 16-2 is connected to the desorption outlet 18-2 at the bottom of the CO2 capture tower 7, and the right end leads into the greenhouse 22. The CO2 variable humidity adsorption material 9 is arranged in the CO2 capture tower 7, and a drain valve 19 and a drain port 20 are arranged at the bottom of the CO2 capture tower 7; the atomizing humidifier 13 is connected to the water tank 15 and is located inside the greenhouse 22 to prevent the water in the atomizing humidifier 13 and the water tank 15 from freezing in winter.

[0022] As a preferred embodiment of the present utility model, air is introduced into the shell side of the heat exchanger 5, and hot water or hot gas is introduced into the tube side to perform heat exchange. The hot water or hot gas in the tube side can be the hot water in underground hot springs or the wastewater and waste gas with relatively high temperatures from industrial waste, improving the energy utilization efficiency.

[0023] As a preferred embodiment of the present utility model, the electric energy of the air electric heater 3 is supplied by the solar panel 4, reducing the use cost and the emission of greenhouse gases.

[0024] As a preferred embodiment of the present utility model, the atomizing humidifier 13 and the water tank 15 are placed on the support frame 21 in the greenhouse 22, which can effectively prevent the water in the atomizing humidifier 13 and the water tank 15 from freezing in winter. The mist outlet of the atomizing humidifier 13 is basically flush with the desorption inlet 18-1 at the top of the CO2 capture tower 7 and is connected through the desorption inlet pipeline 16-1. The atomizing humidifier 13 is equipped with an internal fan 14 and a water tank 15, and can blow the atomized water mist into the CO2 capture tower 7. Under the dual action of gravity and the internal fan 14, the water mist penetrates into the CO2 wet adsorption material 9 in the CO2 capture tower 7, which can accelerate the wetting and CO2 desorption processes. The desorbed CO2 is transported from the bottom of the CO2 capture tower 7 into the greenhouse 22.

[0025] As a preferred embodiment of the present utility model, a material rack 10 is built in the CO2 capture tower 7. As Figure 2 shown, the material rack 10 is connected by a perforated plate 11 and a column 12. The number of perforated plates 11 can be set to one layer or multiple layers according to specific usage situations, and the CO2 wet adsorption material 9 is placed on the perforated plate 11.

[0026] The working process of the device of the present utility model: As Figure 1As shown, during the adsorption process, the adsorption intake valve 6-1 and the adsorption outlet valve 6-2 are opened, and the desorption intake valve 17-1, the desorption outlet valve 17-2, and the drain valve 19 are closed. After the air is heated by the heat exchanger 2 and the air electric heater 3 and its relative humidity is reduced, under the action of the centrifugal fan 5, it is transported through the adsorption intake pipeline 1-1 to the CO2 capture tower 7 for adsorption. After the adsorption is completed, it is discharged through the adsorption outlet pipeline 1-2, and the adsorption time is about 1-3 hours. During the desorption process, the adsorption intake valve 6-1, the adsorption outlet valve 6-2, and the drain valve 19 are closed, and the desorption intake valve 17-1 and the desorption outlet valve 17-2 are opened. Under the action of the built-in fan 14 in the atomizing humidifier 13, the water mist generated by the atomizing humidifier 13 is transported to the CO2 capture tower 7 to wet the CO2 wet adsorption material 9 in the CO2 capture tower 7. The desorbed CO2 is transported from the desorption outlet pipeline 16-2 to the greenhouse 22, and the desorption time is about 1-3 hours. Before the start of the next cycle, the drain valve 19 at the bottom of the CO2 capture tower 7 is opened. After a small amount of water inside the CO2 capture tower 7 is drained, the drain valve 19 is closed, and the next adsorption process is entered, and this cycle repeats. When it is sunny, the CO2 concentration in the greenhouse 22 is increased to promote the photosynthesis and growth of crops.

[0027] The above specific embodiments are only used to illustrate the technical concept and features of the present invention, and their purpose is to enable those who are familiar with the technology to implement the technology according to the content of the present invention. It should be pointed out that all embodiments obtained by only making certain improvements to the present invention within the principle of the present invention by those of ordinary skill in the art without creative labor belong to the scope of protection of the present invention.

Claims

1. A direct air capture CO2 gas fertilizer machine device, characterized in that, It includes an adsorption inlet pipeline (1-1), an adsorption outlet pipeline (1-2), a heat exchanger (2), an air electric heater (3), a centrifugal fan (5), an adsorption inlet valve (6-1), an adsorption outlet valve (6-2), a CO2 capture tower (7), an adsorption inlet (8-1), an adsorption outlet (8-2), a CO2 variable humidity adsorption material (9), an atomizing humidifier (13), a built-in fan (14), a water tank (15), a desorption inlet pipeline (16-1), a desorption outlet pipeline (16-2), a desorption inlet valve (17-1), a desorption outlet valve (17-2), a desorption inlet (18-1), a desorption outlet (18-2), a drain valve (19), a drain outlet (20), and a greenhouse (22); Air enters from the inlet of the adsorption inlet pipeline (1-1). The adsorption inlet pipeline (1-1) is successively connected in series with a heat exchanger (2), an air electric heater (3), a centrifugal fan (5), and an adsorption inlet valve (6-1). The outlet of the adsorption inlet pipeline (1-1) is connected to the adsorption inlet (8-1) at the bottom end of the CO2 capture tower (7); An adsorption outlet valve (6-2) is provided on the adsorption outlet pipeline (1-2). The inlet of the adsorption outlet pipeline (1-2) is connected to the adsorption outlet (8-2) at the top end of the CO2 capture tower (7); A desorption inlet valve (17-1) is provided on the desorption inlet pipeline (16-1). One end of the desorption inlet pipeline (16-1) is connected to the desorption inlet (18-1) at the top end of the CO2 capture tower (7), and the other end is connected to the atomizing humidifier (13); A desorption outlet valve (17-2) is provided on the desorption outlet pipeline (16-2). One end of the desorption outlet pipeline (16-2) is connected to the desorption outlet (18-2) at the bottom end of the CO2 capture tower (7), and the other end is led into the greenhouse (22); The CO2 variable humidity adsorption material (9) is arranged in the CO2 capture tower (7). A drain valve (19) and a drain outlet (20) are provided at the bottom of the CO2 capture tower (7); The atomizing humidifier (13) is connected to the water tank (15) and is located inside the greenhouse (22) to prevent the water in the atomizing humidifier (13) and the water tank (15) from freezing in winter; The atomizing humidifier (13) is equipped with a built-in fan (14) and a water tank (15), and can blow the atomized water mist into the CO2 capture tower (7). Under the dual action of gravity and the built-in fan (14), the water mist penetrates into the CO2 variable humidity adsorption material (9) in the CO2 capture tower (7), accelerating the wetting and CO2 desorption processes. The desorbed CO2 is transported from the bottom of the CO2 capture tower (7) into the greenhouse (22).

2. The direct air capture CO2 gas fertilizer machine device according to claim 1, characterized in that: Air passes through the shell side of the heat exchanger (2), and hot water or hot gas passes through the tube side for heat exchange; The hot water or hot gas in the tube side is the hot water in the underground hot spring or the high-temperature wastewater and waste gas from industry, improving the energy utilization efficiency.

3. The direct air capture CO2 gas fertilizer machine device according to claim 1, wherein: The electric energy of the air electric heater (3) is supplied by a solar panel (4), reducing the use cost and greenhouse gas emissions.

4. The direct air capture CO2 gas fertilizer machine device according to claim 1, wherein: The atomizing humidifier (13) and the water tank (15) are placed on the support frame (21) inside the greenhouse (22). The fog outlet of the atomizing humidifier (13) is flush with the desorption air inlet (18-1) at the top of the CO2 capture tower (7) and is connected through a desorption air inlet pipeline (16-1).

5. The direct air capture CO2 gas fertilizer machine device according to claim 1, characterized in that: A material rack (10) is built inside the CO2 capture tower (7). The material rack (10) is connected by a perforated plate (11) and a column (12). The number of perforated plates (11) is one layer or multiple layers, and the CO2 humidity-variable adsorption material (9) is placed on the perforated plate (11).

Images