Compact adsorption-condensation separation air adsorption water taking device
By using a compact design and a circulating fan to accelerate airflow, combined with the use of polymer biomass hydrogel and glass transparent plates, the problems of small adsorbent contact area and low desorption rate are solved, achieving a highly efficient air-to-water extraction effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- UNIV OF SHANGHAI FOR SCI & TECH
- Filing Date
- 2026-03-30
- Publication Date
- 2026-05-12
AI Technical Summary
Existing air-to-water extraction equipment suffers from low adsorption efficiency due to the small contact area between the adsorbent module and the environment; the desorption stage relies on natural convection, resulting in a low rate; and the separation of the desorption chamber and condensation chamber leads to complex devices and large heat losses.
The design incorporates a compact adsorption-condensation separation device, with the adsorption/desorption chamber and condensation chamber integrated into one unit. A circulating fan accelerates airflow, and a glass light-transmitting plate utilizes sunlight for heat absorption and desorption. A high-molecular-weight biomass hydrogel, PAM-HPMC-C-LiCL, is used as the adsorbent, and an airtight seal is ensured through a sealing ring.
This improved the adsorption efficiency and desorption rate of the adsorbent, reduced heat loss, increased water extraction efficiency, and achieved highly efficient air-to-water extraction.
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Figure CN122013850A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of air water extraction devices, and more specifically to a compact adsorption-condensation separation adsorption air water extraction device. Background Technology
[0002] Currently, global water resources are becoming increasingly scarce. Looking at the entire hydrosphere, seawater accounts for a staggering 97.5% of surface water, while freshwater resources directly usable by humans account for only 0.00768%, a very limited amount. However, atmospheric freshwater accounts for only 0.04% of the total global freshwater volume, and its reserves even exceed the total usable freshwater in all global swamps, wetlands, and rivers. Adsorption-based air-to-water technology, due to its wide applicability and flexibility, has the potential to become a globally distributed water source, alleviating water scarcity in deserts and arid regions.
[0003] However, existing air-to-water extraction devices often limit adsorption efficiency due to the small contact area between the adsorbent module and the environment. Furthermore, during the desorption phase, the adsorbent, located in a chamber with high water vapor concentration, can only desorb via slow natural convection, resulting in a low desorption rate. Additionally, existing devices typically treat the desorption chamber and condensation chamber as separate components connected by pipes, leading to complex designs, significant heat loss, and ultimately, low water extraction efficiency. Therefore, achieving more efficient water extraction has become a critical issue that urgently needs to be addressed. Summary of the Invention
[0004] The present invention was made to solve the above-mentioned problems, and its purpose is to provide a compact adsorption-condensation separation adsorption air water extraction device.
[0005] This invention provides a compact adsorption-condensation separation air-water extraction device, characterized by comprising, from top to bottom, a shell plate, an adsorption / desorption section, an intermediate partition, a condensation chamber, and multiple sealing gaskets. The adsorption / desorption section includes: a shell enclosing a space for adsorption / desorption, referred to as the adsorption / desorption chamber; a grid frame with an adsorbent placed at its upper end; and an air inlet unit including multiple air inlets, an exhaust duct, an exhaust fan, and an air inlet switch. The multiple air inlets are located on one side of the shell and are all through-holes. The unit is connected to an exhaust duct, with an exhaust fan installed at the duct to deliver air into the housing. An air inlet switch controls whether the exhaust duct is opened or closed. An exhaust unit, including an exhaust port and an exhaust switch, is located on the other side of the housing. The exhaust switch controls whether the exhaust port is opened or closed. A through-hole is provided on the intermediate partition, and a circulating fan is installed at the through-hole. The circulating fan circulates the air between the adsorption / desorption chamber and the condensation chamber during the adsorbent desorption process. The condensation chamber contains a condensing aluminum plate, which condenses the desorbed water vapor into condensate. Multiple sealing gaskets are used to seal the device.
[0006] In the compact adsorption-condensation separation adsorption air water extraction device provided by the present invention, it may also have the following feature: wherein the shell plate includes at least one glass light-transmitting plate and a sealing gasket for sealing the connection between the glass light-transmitting plate and the adsorption / desorption section, the glass light-transmitting plate is used to allow sunlight to pass through during the daytime adsorbent desorption process, so that the adsorbent absorbs heat and desorbs.
[0007] In the compact adsorption-condensation separation adsorption air water extraction device provided by the present invention, it may also have the following feature: wherein the shell plate portion includes a plurality of stacked glass light-transmitting plates and at least one sealing gasket for sealingly connecting two adjacent glass light-transmitting plates.
[0008] In the compact adsorption-condensation separation adsorption air water extraction device provided by the present invention, it may also have the following features: a sealing gasket is provided between the adsorption / desorption section and the intermediate partition, a sealing gasket is provided between the intermediate partition and the condensation cavity, and a sealing gasket is provided between the condensation aluminum plate and the condensation cavity.
[0009] The compact adsorption-condensation separation adsorption air water extraction device provided by the present invention may also have the following features: wherein the air inlet switch is a ball valve and the air outlet switch is a sealing plug.
[0010] In the compact adsorption-condensation separation adsorption air water extraction device provided by the present invention, it may also have the following features: the number of through holes and the number of circulating fans are both two and are arranged in a one-to-one correspondence, and the two through holes are respectively arranged at the diagonal position of the middle partition, and the airflow direction of the two circulating fans is opposite.
[0011] The compact adsorption-condensation separation adsorption air water collection device provided by the present invention may also have the following feature: wherein a collection hole for draining condensate is provided on the condensation aluminum plate.
[0012] The compact adsorption-condensation separation adsorption air water extraction device provided by the present invention may also have the following feature: wherein the adsorbent is a high molecular weight biomass hydrogel PAM-HPMC-C-LiCL.
[0013] In the compact adsorption-condensation separation adsorption air water extraction device provided by the present invention, it may also have the following features: wherein the number of adsorbents is N² (N≥1, and N is an integer), and the adsorbents are distributed in an N-row, N-column matrix on the grid frame.
[0014] The role and effect of invention
[0015] The compact adsorption-condensation separation adsorption air-water extraction device according to the present invention, because it includes an air inlet unit and an air outlet unit, accelerates the air flow rate inside the adsorption / desorption chamber, thereby allowing the adsorbent placed inside the adsorption / desorption chamber to fully contact the air and improving the adsorption efficiency of the adsorbent in the device.
[0016] The compact adsorption-condensation separation adsorption air-water extraction device involved in this invention integrates the adsorption / desorption chamber, the condensation chamber, and the intermediate partition plate, making the device simple and compact in structure. This reduces the heat loss caused by the pipe connection in the prior art and reduces the heat loss of high-humidity air circulating in the device. Furthermore, the circulating fan set on the intermediate partition plate further blows the high-temperature and high-humidity air inside the adsorption / desorption chamber into the condensation chamber, while simultaneously introducing the condensed dry and cold gas into the adsorption / desorption chamber. The air convection circulation improves the desorption rate of the adsorbent. The water vapor desorbed by the condenser is condensed into condensate by the condensing aluminum plate set on the condensation chamber. Attached Figure Description
[0017] Figure 1 A three-dimensional structural diagram of an adsorption-condensation type air-water extraction device;
[0018] Figure 2 This is a schematic diagram of the exploded structure of an adsorption-condensation type air-water extraction device;
[0019] Figure 3 yes Figure 2 Enlarged view of point A in the middle;
[0020] Figure 4 yes Figure 2 Enlarged view of point B in the middle;
[0021] Figure 5 This is a partial structural diagram of the adsorption / desorption section of an adsorption-condensation type air-water extraction device.
[0022] Figure 6 This is a schematic diagram of the middle partition of an adsorption-condensation air-water extraction device.
[0023] Figure 7 This is a diagram showing the water intake effect of an adsorption-condensation air-water extraction device. Detailed Implementation
[0024] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0025] To make the technical means, creative features, objectives and effects of the present invention easy to understand, the following embodiments, in conjunction with the accompanying drawings, provide a detailed description of an adsorption-condensation type air water extraction device of the present invention.
[0026] Figure 1 This is a three-dimensional structural schematic diagram of the adsorption-condensation air-water extraction device in an embodiment of the present invention.
[0027] like Figure 1 As shown, the compact adsorption-condensation separation adsorption air water collection device 100 in this embodiment includes a shell plate 10, an adsorption / desorption section 20, a middle partition 30, a condensation chamber 40, and a plurality of sealing gaskets 50 arranged sequentially from top to bottom.
[0028] Figure 2 This is a schematic cross-sectional view of an adsorption-condensation type air-water extraction device.
[0029] Figure 3 yes Figure 2 Enlarged view of point A in the middle.
[0030] like Figure 1 , 2As shown in Figure 3, the shell plate portion 10 includes at least one glass light-transmitting plate 11 and a sealing gasket 50 for sealing the connection between the glass light-transmitting plate 11 and the adsorption / desorption chamber 20. The glass light-transmitting plate 11 is used to allow sunlight to pass through during the desorption process of the daytime adsorbent 211, thereby causing the adsorbent 211 to absorb heat and desorb.
[0031] Specifically, the shell plate portion 10 includes a plurality of stacked glass light-transmitting plates 11 and at least one sealing gasket 50 for sealingly connecting two adjacent glass light-transmitting plates 11. In this embodiment, the shell plate portion 10 includes two stacked glass light-transmitting plates 11 and a sealing gasket 50 for sealingly connecting the two glass light-transmitting plates 11.
[0032] Figure 5 This is a partial structural diagram of the adsorption / desorption section of an adsorption-condensation type air-water extraction device.
[0033] like Figure 1 , 2 As shown in Figure 5, the adsorption / desorption section 20 includes a housing 24, a grid frame 21, an air inlet unit 22, and an air outlet unit 23. The grid frame 21 is used to hold the adsorbent 211. The air inlet unit 22 is used to introduce external air into the adsorption / desorption chamber 20. The air outlet unit 23 is used to exhaust the air inside the adsorption / desorption chamber 20.
[0034] The housing 24 encloses a space for adsorption / desorption, referred to as the adsorption / desorption chamber. A grid frame 21 is disposed inside the adsorption / desorption chamber and connected to the housing 24.
[0035] The adsorbent 211 is a high-molecular-weight biomass hydrogel, PAM-HPMC-C-LiCL. The number of adsorbents 211 is N² (N≥1, and N is an integer), and they are arranged in an N-row, N-column matrix on the grid frame 21. In this embodiment, there are four adsorbents 211, arranged in a 2-row, 2-column matrix on the grid frame 21.
[0036] The air intake unit 22 includes multiple air inlets 221, an air duct 222, an air duct fan 223, and an air intake switch 224. The multiple air inlets 221 are located on one side of the housing 24, and all of them are connected to the air duct 222. The air duct fan 223 is located at the air duct 222 and is used to transport air through the air duct 222 to the housing 24. The air intake switch 224 is used to control whether the air duct 222 is opened or closed. In this embodiment, three air inlets 221 are provided, and the three air inlets 221 are equally spaced on one side of the housing 24. All three air inlets 221 are connected to the air duct 222. The air duct fan 223 is located at the inlet of the air duct 222. The air intake switch 224 is a ball valve 2241 and is located on the air duct 222 near the air duct fan 223.
[0037] The air outlet unit 23 includes an air outlet 231 and an air outlet switch 232. The air outlet 231 is located on the other side of the housing 24, and the air outlet switch 232 is used to control whether the air outlet is opened or closed. In this embodiment, the air outlet switch 232 is a sealing plug 2321, and the sealing plug 2321 is pluggably connected to the air outlet 231.
[0038] Figure 6 This is a schematic diagram of the middle partition of an adsorption-condensation air-water extraction device.
[0039] like Figure 2 , 3 As shown in Figure 6, a through hole 31 is provided on the intermediate partition 30, and a circulating fan 32 is provided at the through hole 31. The circulating fan 32 is used to circulate the air in the adsorption / desorption chamber and the condensation chamber 40 during the desorption process of the adsorbent 211.
[0040] There are two through holes 31 and two circulating fans 32, and they are set one-to-one. The two through holes 31 are respectively set at the diagonal positions of the middle partition 30, and the airflow of the two circulating fans 32 is opposite.
[0041] Figure 4 yes Figure 2 Enlarged view of point B in the middle.
[0042] like Figure 2 , 4 As shown, the condensation chamber 40 includes a condensing aluminum plate 41, which is used to form condensate from the desorbed water vapor. The condensing aluminum plate 40 is also provided with a collection hole 42 for draining the condensate. The collection hole 42 is located at the corner of the condensing aluminum plate 41 and is on the diagonal of the condensing aluminum plate 41.
[0043] like Figure 1 , 2As shown, a sealing gasket 50 is provided between the glass light-transmitting plate 11 and the adsorption / desorption chamber 20, the adsorption / desorption chamber 20 and the intermediate partition 30, the intermediate partition 30 and the condensation chamber 40, and the condensation aluminum plate 41 and the condensation chamber 40.
[0044] Figure 7 This is a diagram showing the water intake effect of an adsorption-condensation air-water extraction device.
[0045] like Figure 7 As shown, the outdoor measured water extraction device 100 using the adsorption-condensation type can achieve a water extraction rate of 2.5L / m³ in sunny weather. 2 The adsorption-condensation air-water extraction device 100 can extract up to 1.5L / m³ of water per day on cloudy days. 2 every day.
[0046] The usage process of the adsorption-condensation air water collection device 100 in this embodiment is as follows:
[0047] First, the adsorption-condensation air-water collection device 100 is placed at an angle, so that the collection hole 42 is located at the lowest corner of the four corners of the condensation aluminum plate 41, with an angle of 30°.
[0048] Secondly, at night, the ball valve 2241 is opened and the sealing plug 2321 of the air outlet 231 is pulled out. The induced draft fan 223 is turned on to introduce the humid air from the outside environment into the adsorption / desorption chamber through the induced draft pipe 22, so that the four adsorbents 211 placed on the grid frame 21 can adsorb water vapor.
[0049] Subsequently, after 8 hours of adsorption operation, the ball valve 2241 is closed and the sealing plug 2321 is used to seal the air outlet 231, and the induced draft fan 223 is turned off.
[0050] During the day, sunlight passes through two glass light-transmitting plates 11 into the adsorption / desorption chamber formed by the housing 24, causing the adsorbent 211 to absorb heat and desorb. At the same time, two circulating fans 32 are turned on to blow the high-temperature and high-humidity air inside the adsorption / desorption chamber into the condensation chamber 40, and at the same time, the condensed dry and cold gas is introduced into the adsorption / desorption chamber, so that the air circulates and the adsorbent 211 desorbs. The desorbed water vapor is condensed on the condensing aluminum plate 41 to form condensate, which is then discharged through the collection holes set on the condensing aluminum plate 41, thus completing the water collection work.
[0051] The role and effect of the embodiments
[0052] According to the compact adsorption-condensation separation adsorption air water extraction device involved in this embodiment, by integrally connecting the adsorption / desorption chamber, the condensation chamber and the intermediate partition, the device has a simple and compact structure, reducing the heat loss of high-humidity air circulating in the device. The circulating fan set on the intermediate partition further blows the high-temperature and high-humidity air inside the adsorption / desorption chamber into the condensation chamber, and at the same time introduces the condensed dry and cold gas into the adsorption / desorption chamber, so as to circulate the air convection, thereby improving the desorption rate of the adsorbent. The water vapor desorbed by the condenser is condensed into condensate by the condensing aluminum plate set on the condensation chamber.
[0053] Furthermore, by stacking glass light-transmitting plates, sunlight is allowed to enter the adsorption / desorption chamber during the day, causing the adsorbent to absorb heat and desorb.
[0054] Furthermore, by using sealing gaskets to connect the shell plate, adsorption / desorption chamber, condensation chamber, intermediate partition, and condensation aluminum plate to each other and ensuring the airtightness of the connections between the components, the device has a simple and compact structure, reduces the heat loss of the adsorption-condensation air water extraction device, and improves the water extraction efficiency.
[0055] Furthermore, the high molecular weight biomass hydrogel PAM-HPMC-C-LiCL has a high cycle life and stability, thus ensuring the normal operation of water extraction.
[0056] Furthermore, the use of ball valves and sealing plugs ensures that the device remains sealed during the desorption of the condensate, thereby guaranteeing the normal operation of the desorption process.
[0057] Furthermore, by using through holes in the middle partition and a circulating fan with opposite airflow direction, it is convenient to blow the high-temperature and high-humidity gas near the adsorbent into the condensation chamber to form condensate, while introducing the condensed dry and cold gas into the adsorption / desorption chamber to improve the desorption rate of the adsorbent.
[0058] Those skilled in the art should understand that this invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to this invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.
Claims
1. A compact adsorption-condensation separation adsorption air water extraction device, characterized in that, include: The components arranged from top to bottom are: a shell plate, an adsorption / desorption section, an intermediate partition, a condensation chamber, and multiple sealing gaskets. The adsorption / desorption section includes: The shell surrounds and forms a space for adsorption / desorption, which is referred to as the adsorption / desorption cavity; A grid frame, wherein an adsorbent is placed at the upper end of the grid frame; The air intake unit includes multiple air inlets, an air duct, an air blower, and an air intake switch. The multiple air inlets are located on one side of the housing and are all connected to the air duct. The air blower is located at the air duct and is used to transmit air into the housing. The air intake switch is used to control whether the air duct is opened or closed. An air outlet unit includes an air outlet and an air outlet switch. The air outlet is located on the other side of the housing, and the air outlet switch is used to control whether the air outlet is opened or closed. The intermediate partition plate has through holes, and a circulating fan is installed at the through holes. The circulating fan is used to circulate the air in the adsorption / desorption chamber and the condensation chamber during the adsorbent desorption process. The condensation chamber includes a condensing aluminum plate, which is used to condense the desorbed water vapor into condensate.
2. The compact adsorption-condensation separation adsorption air water extraction device according to claim 1, characterized in that: in, The shell plate includes at least one glass light-transmitting plate and a sealing gasket for sealing the glass light-transmitting plate and the adsorption / desorption section. The glass light-transmitting plate is used to allow sunlight to pass through during the daytime desorption process of the adsorbent, so that the adsorbent absorbs heat and desorbs.
3. The compact adsorption-condensation separation adsorption air water extraction device according to claim 1, characterized in that: in, The shell plate includes at least one glass light-transmitting plate and a sealing gasket for sealing the glass light-transmitting plate and the adsorption / desorption section. The glass light-transmitting plate is used to allow sunlight to pass through during the daytime desorption process of the adsorbent, so that the adsorbent absorbs heat and desorbs.
4. The compact adsorption-condensation separation adsorption air water extraction device according to claim 2, characterized in that: in, The shell plate includes a plurality of stacked glass light-transmitting plates and at least one sealing gasket for sealingly connecting two adjacent glass light-transmitting plates.
5. The compact adsorption-condensation separation adsorption air water extraction device according to claim 1, characterized in that: in, A sealing gasket is provided between the adsorption / desorption section and the intermediate partition, a sealing gasket is provided between the intermediate partition and the condensation cavity, and a sealing gasket is provided between the condensation aluminum plate and the condensation cavity.
6. The compact adsorption-condensation separation adsorption air water extraction device according to claim 1, characterized in that: in, The air inlet switch is a ball valve, and the air outlet switch is a sealing plug.
7. The compact adsorption-condensation separation adsorption air water extraction device according to claim 1, characterized in that: in, The number of through holes and circulating fans are both two, and they are arranged in a one-to-one correspondence. The two through holes are respectively located at the diagonal positions of the middle partition, and the airflow directions of the two circulating fans are opposite.
8. The compact adsorption-condensation separation adsorption air water extraction device according to claim 1, characterized in that: in, The condensing aluminum plate is also provided with a collection hole for draining condensate.
9. The compact adsorption-condensation separation adsorption air water extraction device according to claim 1, characterized in that: in, The adsorbent is a high molecular weight biomass hydrogel, PAM-HPMC-C-LiCL.
10. The compact adsorption-condensation separation adsorption air water extraction device according to claim 8, characterized in that: in, The number of adsorbents is N² (N≥1, and N is an integer), and the adsorbents are distributed in an N-row, N-column matrix on the grid frame.