Cross flow internally cooled rotary dehumidification system and method

Abstract

The application discloses a cross-flow internal cooling rotary dehumidification system and method, and relates to the field of dehumidification systems. The system comprises a cross-flow internal cooling rotary dehumidifier, a driving motor, a movable baffle and a heat source. The cross-flow internal cooling rotary dehumidifier is symmetrically provided with a dehumidification zone and a regeneration zone along a horizontal plane where a rotating shaft is located. The movable baffle covers the top of the cross-flow internal cooling rotary dehumidifier. The left and right sides of the cross-flow internal cooling rotary dehumidifier are respectively provided with a fresh air inlet and a fresh air outlet, and a primary flow channel is formed between the fresh air inlet and the fresh air outlet. The upper and lower sides of the cross-flow internal cooling rotary dehumidifier are respectively provided with a cooling inlet and a cooling outlet, and a secondary flow channel is formed between the cooling inlet and the cooling outlet. The primary flow channel and the secondary flow channel are staggered and independent of each other. Processed air passes through the primary flow channel located in the dehumidification zone and is finally discharged as supply air. After cooling air passes through the secondary flow channel, the cooling air enters the primary flow channel located in the regeneration zone through the heat source and is finally discharged as regeneration exhaust air.

Description

Technical Field

[0001] The present invention relates to the technical field of air dehumidification applications, and in particular to a cross-flow internally cooled rotor dehumidification system and method. Background Art

[0002] Air humidity regulation is essential to meeting people's daily needs and the requirements of industrial and agricultural production. Excessively high indoor humidity affects people's thermal comfort and easily breeds toxic bacteria that pollute the air, while too low humidity can irritate the human respiratory tract and skin, which is not conducive to health. In industrial and agricultural production, humidity is an important factor affecting product quality, crop production and storage, instrument accuracy, and the life of metal components. At present, electrically driven traditional steam compression air conditioners are still the main way to regulate air humidity, resulting in huge electricity consumption. Faced with increasingly severe energy and environmental problems, the new generation of air-conditioning technology urgently needs to reduce dependence on electricity, further save energy and reduce consumption, and ensure humidity control requirements. In this context, solid adsorption dehumidification technology that can be driven by renewable energy such as solar energy and geothermal energy, as well as industrial waste heat, has become popular.

[0003] Rotary dehumidification is one of the most widely used forms of adsorption dehumidification technology. After years of development, it now holds a significant market share in the air conditioning market and boasts a promising future. Rotary wheels typically utilize a cylindrical honeycomb structure, constructed by pressing and assembling a desiccant coated on an insulating material such as ceramic fiber paper. The rotor is divided into a dehumidification zone and a regeneration zone. During operation, dehumidification and regeneration occur simultaneously. Driven by a drive mechanism, the rotor slowly rotates, switching between the dehumidification and regeneration zones for continuous dehumidification. However, when the regeneration zone of the rotor rotates into the dehumidification zone, a large amount of residual regeneration heat is present. This, combined with the adsorption heat released by the desiccant during moisture absorption, not only reduces the desiccant's moisture absorption capacity, but also increases the subsequent sensible heat handling load of the air conditioner due to the accompanying rise in dehumidified air temperature. Therefore, to improve the performance of rotary dehumidification, appropriate internal cooling methods are necessary to promptly eliminate the thermal effects of the adsorption process.

[0004] Several methods have been reported to address the thermal impact of the rotor adsorption dehumidification process, including adding a pre-cooling zone, using multi-stage rotor interstage cooling, and using non-adiabatic rotors. A pre-cooling zone is added between the dehumidification and regeneration zones. After regeneration, the rotor enters the pre-cooling zone, where pre-cooled air is blown through the desiccant layer before rotating into the dehumidification zone for adsorption dehumidification. This method effectively removes residual heat from regeneration but does not address the adsorption heat impact. Using a multi-stage rotor, where the air at the outlet of the first rotor is interstage cooled before being fed to the secondary rotor for further dehumidification, can mitigate the adsorption heat impact to some extent. However, it cannot achieve real-time cooling during the adsorption process, resulting in poor results. Furthermore, adding multiple rotors complicates the system structure. A non-adiabatic rotor can achieve real-time cooling during the adsorption process. This method divides the metal rotor into multiple sectors, with the gaps between the sectors serving as cooling air channels. During the adsorption dehumidification process, cooling air is introduced from the center of the rotor's rotating axis and then dispersed radially outward from the center of the rotor. This non-adiabatic rotor can achieve cooling of the desiccant layer near the interval channels in the sector-shaped area, but it is difficult to achieve an ideal cooling effect in the dehumidification channels inside the sector-shaped area. Summary of the Invention

[0005] In response to the deficiencies in the prior art, the present invention provides a cross-flow internally cooled rotary dehumidification system and method, which achieves real-time cooling of the rotary adsorption dehumidification process by introducing cooling air into the secondary flow channel, promptly and effectively eliminating the thermal impact of the adsorption process, and uses the recovered regeneration residual heat and adsorption heat for heating and regenerating the desiccant layer, thereby improving the dehumidification performance of the system.

[0006] To achieve the above object, the present invention can be carried out using the following technical solutions:

[0007] A cross-flow internally cooled rotary dehumidification system comprising:

[0008] A cross-flow internally cooled rotor with a dehumidification zone and a regeneration zone symmetrically arranged along the horizontal plane where the rotating axis is located;

[0009] A driving motor, which is used to drive the cross-flow inner cooling wheel to rotate around a rotating shaft;

[0010] A movable baffle, which covers the cross-flow inner cooling wheel and can switch back and forth between the front half and the rear half of the cross-flow inner cooling wheel; and

[0011] Heat source, among which

[0012] A fresh air inlet and a fresh air outlet are respectively provided on the left and right sides of the cross-flow inner cooling wheel, and a primary flow channel is formed between the fresh air inlet and the fresh air outlet. A cooling inlet and a cooling outlet are respectively provided on the upper and lower sides of the cross-flow inner cooling wheel, and a secondary flow channel is formed between the cooling inlet and the cooling outlet. The primary flow channel and the secondary flow channel are staggered and independent of each other. The fresh air treated air passes through the primary flow channel located in the dehumidification area and is finally discharged as supply air. After passing through the secondary flow channel, the cooling air passes through the heat source and enters the primary flow channel located in the regeneration area and is finally discharged as regeneration exhaust gas.

[0013] The cross-flow internally cooled rotor dehumidification system as described above, further, the cross-flow internally cooled rotor has a rotor front-stage metal matrix and a rotor front-stage insulation matrix located in the front half of the rotor, and has a rotor rear-stage metal matrix and a rotor rear-stage insulation matrix located in the rear half of the rotor, the rotor front-stage metal matrix and the rotor front-stage insulation matrix are symmetrically arranged along the horizontal plane where the rotation axis is located and the two are in contact with each other in the plane where the rotation axis is located, the rotor rear-stage metal matrix and the rotor rear-stage insulation matrix are symmetrically arranged along the horizontal plane where the rotation axis is located and the two are in contact with each other in the plane where the rotation axis is located, the rotor rear-stage insulation matrix is ​​connected to the downstream of the rotor front-stage metal matrix, and the rotor rear-stage metal matrix is ​​connected to the downstream of the rotor front-stage insulation matrix.

[0014] The cross-flow internally cooled rotary dehumidification system as described above, further, the primary flow channel is coated with a desiccant.

[0015] The cross-flow internally cooled rotary dehumidification system as described above, further, the primary and secondary flow channels are provided with a corrugated structure.

[0016] The cross-flow internally cooled rotor dehumidification system as described above, further, the rotating shaft of the cross-flow internally cooled rotor is provided with a through channel at least partially communicating with the secondary flow channel.

[0017] The cross-flow internal cooling rotary dehumidification system as described above, further, the heat source adopts any one or any combination of solar energy, equipment waste heat and electric heating.

[0018] The cross-flow internally cooled rotor dehumidification system as described above, further, the cross-flow internally cooled rotor has an outer shape of a cylinder or a rectangular parallelepiped.

[0019] The cross-flow internally cooled rotary dehumidification system as described above further includes a three-way valve, one port of which is connected to the heat source, and the other two ports of the three-way valve are both connected to the secondary flow channel.

[0020] The cross-flow internally cooled rotary dehumidification system as described above further includes a fan, which is arranged downstream of the fresh air outlet.

[0021] At the same time, the present invention also provides a dehumidification method, which is performed using the above-mentioned cross-flow internal cooling rotor dehumidification system, and the method comprises:

[0022] The treated air enters the dehumidification area of ​​the metal base before the rotor, and is adsorbed and dehumidified by the desiccant layer coated on the primary flow channel to reduce the humidity;

[0023] The movable baffle is switched to the upper part of the rear half of the cross-flow inner cooling rotor, and the cooling air flows into the secondary flow channel of the front half of the cross-flow inner cooling rotor to cool the desiccant layer in the dehumidification area of ​​the metal matrix in the front stage of the rotor;

[0024] The air flowing out of the primary flow channel of the dehumidification zone of the metal matrix in the front stage of the runner continues to flow into the dehumidification zone of the adiabatic matrix in the rear stage of the runner for adsorption dehumidification, and is then discharged as supply air;

[0025] The cooling air flowing in from the secondary flow channel of the front half of the cross-flow inner cooling wheel recovers the residual heat and adsorption heat in the dehumidification zone of the front stage metal matrix of the wheel and then enters the regeneration zone. The preheated air is further heated by the heat source and then enters the primary flow channel of the regeneration zone of the wheel to heat the regenerated desiccant layer and finally discharged as regeneration exhaust gas.

[0026] After the dehumidification zone of the metal matrix in front of the rotor is saturated with adsorption, the driving motor drives the rotor to rotate, and the dehumidification zone and regeneration zone are switched up and down;

[0027] The movable baffle is switched to the top of the front half of the cross-flow inner cooling rotor, and the cooling air flows into the secondary flow channel of the rear half of the cross-flow inner cooling rotor to cool the desiccant layer in the dehumidification zone of the metal substrate at the rear stage of the rotor;

[0028] The treated air is first dehumidified in the dehumidification area of ​​the adiabatic base before the runner, then flows into the metal base dehumidification area after the runner for adsorption dehumidification, and then is discharged as supply air;

[0029] The cooling air flowing in from the secondary flow channel of the rear half of the cross-flow inner cooling wheel enters the regeneration zone after recovering the regeneration residual heat and adsorption heat in the dehumidification zone of the metal matrix of the rear stage of the wheel. The preheated air is further heated by the heat source and then enters the primary flow channel of the wheel regeneration zone to heat the regenerated desiccant layer, and is finally discharged as regeneration exhaust gas.

[0030] Compared with existing technologies, this invention offers significant advantages: The cross-flow internally cooled rotor is internally configured with interlaced and independent primary and secondary flow channels. By introducing cooling air into the secondary flow channels, the rotor achieves real-time cooling during the adsorption dehumidification process, effectively eliminating the thermal impact of the adsorption process and enhancing the dehumidification capacity of the desiccant layer. Furthermore, by recycling residual regeneration heat and adsorption heat, regeneration energy consumption can be reduced, effectively improving system energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 Schematic diagram of the structure of the cross-flow internal cooling runner in an embodiment of the present invention;

[0033] Figure 2 for Figure 1 The schematic diagram of the structure of the rotating shaft of the cross-flow inner cooling runner is shown;

[0034] Figure 3 Schematic diagram of the structure of the cross-flow internal cooling rotor dehumidification system in an embodiment of the present invention;

[0035] Figure 4 Schematic diagram of the fresh air inlet of the cross-flow internal cooling wheel in an embodiment of the present invention.

[0036] Among them: 1a, the metal matrix of the front stage of the runner; 1b, the metal matrix of the rear stage of the runner; 2a, the insulation matrix of the front stage of the runner; 2b, the insulation matrix of the rear stage of the runner; 3a, the primary flow channel; 3b, the secondary flow channel; 4, the rotating shaft; 5, the movable baffle; 6, the heat source; 7, the three-way valve; 8, the drive motor; 9, the fan. DETAILED DESCRIPTION

[0037] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0038] Example:

[0039] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate so that the embodiments of the present invention described herein can be implemented in an order other than the ones shown or described herein. In addition, the terms "including" and "having" and any variations thereof in the embodiments of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0040] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0041] In the description of the present invention, "plurality" means at least two, such as two or three, unless otherwise specifically defined. Furthermore, unless otherwise specified or defined, the terms "mounted," "connected," and "connected" should be understood broadly, meaning, for example, fixed, removable, or integral; mechanical or electrical; direct or indirect through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention.

[0042] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0043] See also Figures 1 to 4The present invention provides a cross-flow internal cooling rotary dehumidification system, which realizes real-time cooling of the rotary adsorption dehumidification process by introducing ambient air or indoor low-temperature return air into the secondary flow channel 3b as cooling air, timely and effectively eliminating the heat impact problem of the adsorption process, and uses the recovered regeneration residual heat and adsorption heat for heating and regenerating the desiccant layer, thereby improving the dehumidification performance of the system.

[0044] See also Figure 3-Figure 4 , Figure 3A cross-flow internal cooling rotor dehumidification system is presented, which may include: a cross-flow internal cooling rotor, a drive motor 8, a movable baffle 5, and a heat source 6. The cross-flow internal cooling rotor is symmetrically arranged with a dehumidification zone and a regeneration zone along the horizontal plane of the rotation axis; the drive motor 8 is used to drive the cross-flow internal cooling rotor to rotate about the rotation axis; the movable baffle 5 covers the cross-flow internal cooling rotor and can switch back and forth between the front and rear halves of the cross-flow internal cooling rotor. Specifically, the cross-flow internal cooling rotor consists of two front and rear stages of equal thickness, each of which is divided into two symmetrical upper and lower parts. The upper half of the rotor is the dehumidification zone, while the lower half is the regeneration zone, separating the dehumidification zone and the regeneration zone. The center of the cross-flow internal cooling rotor is the rotation axis 4. When the dehumidification zone is saturated with adsorption, the drive motor 8 drives the rotor to rotate, completing the upper and lower switching between the dehumidification zone and the regeneration zone, thereby achieving continuous dehumidification. An automatically controlled movable baffle 5 is provided above the cross-flow internal cooling rotor. The width of the movable baffle 5 is equivalent to the thickness of both the front and rear halves of the rotor. In this embodiment, a fresh air inlet and a fresh air outlet are provided on the left and right sides of the cross-flow internal cooling rotor, respectively. A primary flow channel 3a is formed between the fresh air inlet and the fresh air outlet. A cooling inlet and a cooling outlet are provided on the top and bottom sides of the cross-flow internal cooling rotor, respectively. A secondary flow channel 3b is formed between the cooling inlet and the cooling outlet. The primary flow channels 3a and the secondary flow channels 3b are intertwined and independent of each other. Processed air passes through the primary flow channel 3a located in the dehumidification zone and is ultimately discharged as supply air. After passing through the secondary flow channel 3b, the cooled air passes through the heat source 6 and enters the primary flow channel 3a located in the regeneration zone and is ultimately discharged as regeneration exhaust air. It is understood that the primary flow channel 3a and the secondary flow channel 3b are arranged perpendicularly and crosswise with each other. The primary flow channel 3a is coated with a desiccant layer, while the secondary flow channel 3b serves as a cooling air channel. The secondary flow channels 3b of the front and rear stages of the rotor are separated, and the cooling airflow direction in the secondary flow channel 3b is perpendicular to the processing air flow in the dehumidification zone and the regeneration air flow in the regeneration zone. During the adsorption dehumidification process, ambient air or low-temperature indoor return air is introduced into the secondary flow channel 3b as cooling air, which can cool the desiccant layer in the primary flow channel 3a, eliminate the thermal impact of the adsorption process, and recover the residual heat of regeneration and adsorption heat. The preheated air is then further heated by the heat source 6 and passed into the regeneration zone of the cross-flow cooling rotor to heat the regenerated desiccant layer. Dehumidification and regeneration are carried out simultaneously. When the dehumidification zone is saturated with adsorption, the drive motor 8 drives the rotor to rotate, completing the up and down switching between the dehumidification zone and the regeneration zone, achieving continuous dehumidification. It should be understood that the heat source 6 can be any one or any combination of solar energy, equipment waste heat, and electric heating. The shape of the cross-flow inner cooling wheel can be designed and processed according to needs, and is preferably cylindrical or rectangular.

[0045] See also Figure 2In the above embodiment, further, the rotating shaft 4 of the cross-flow internal cooling runner is provided with a through-channel that is at least partially connected to the secondary flow channel 3b. Specifically, the cavity dimensions of the rotating shaft 4 are consistent with the dimensions of the secondary flow channel 3b of the cross-flow internal cooling runner. The through-channel is machined into the rotating shaft 4 so that the secondary flow channel 3b of the cross-flow internal cooling runner is not blocked by the rotating shaft 4, thereby ensuring the connectivity of the secondary flow channel 3b.

[0046] See again Figure 3 Furthermore, the system also includes a three-way valve 7 and a fan 9. One port of the three-way valve 7 is connected to the heat source 6, and the other two ports of the three-way valve 7 are both connected to the secondary flow channel 3b. The fan 9 is arranged downstream of the fresh air outlet. Specifically, the three-way valve 7 is respectively connected to the secondary flow channel 3b and the heat source 6. After the preheated air is switched by the three-way valve 7, it is further heated by the heat source 6 and then passed into the rotor regeneration area to heat and regenerate the desiccant layer. The fan 9 is arranged downstream of the fresh air outlet, which is conducive to the timely discharge of the supply air and regeneration exhaust air.

[0047] See also Figure 1 As an optional embodiment, in some embodiments, the cross-flow internal cooling wheel has a wheel front-stage metal matrix 1a and a wheel front-stage insulation matrix 2a located in the front half of the wheel, and a wheel rear-stage metal matrix 1b and a wheel rear-stage insulation matrix 2b located in the rear half of the wheel, the wheel front-stage metal matrix 1a and the wheel front-stage insulation matrix 2a are symmetrically arranged along the horizontal plane where the rotation axis is located, and the two are in contact with each other in the plane where the rotation axis is located, the wheel rear-stage metal matrix 1b and the wheel rear-stage insulation matrix 2b are symmetrically arranged along the horizontal plane where the rotation axis is located, and the two are in contact with each other in the plane where the rotation axis is located, the wheel rear-stage insulation matrix 2b is connected to the downstream of the wheel front-stage metal matrix 1a, and the wheel rear-stage metal matrix 1b is connected to the downstream of the wheel front-stage insulation matrix 2a.

[0048] Specifically, the front and rear halves of the cross-flow internal cooling rotor are both composed of a metal matrix and an insulating matrix. The insulated matrix 2b of the rotor's rear stage is connected downstream of the metal matrix 1a of the rotor's front stage, and the metal matrix 1b of the rotor's rear stage is connected downstream of the insulating matrix 2a of the rotor's front stage. In this embodiment, when the treated air enters the dehumidification zone of the metal matrix 1a of the rotor's front stage for adsorption dehumidification, the movable baffle 5 is switched above the rotor's rear stage, allowing the cooling air to flow into the secondary flow channel 3b of the rotor's front stage. This allows for good heat exchange between the cooling air and the metal matrix, thereby facilitating cooling of the desiccant layer in the dehumidification zone of the metal matrix 1a of the rotor's front stage and recovering the residual heat of regeneration and adsorption therein. The preheated cooling air then enters the regeneration zone of the lower half. Because the lower half of the rotor's front half is an insulating matrix, the cooling air in the secondary flow channel 3b does not affect the regeneration of the desiccant layer on the primary side. Similarly, the second half of the cross-flow internal cooling runner is also composed of a metal matrix and an insulating matrix, which will not be described here.

[0049] As an optional embodiment, in some embodiments, the primary flow channel 3a is not completely coated with desiccant. Specifically, the primary flow channel of the cross-flow inner cooling wheel insulation base part can be coated with desiccant material according to actual needs. Preferably, in this example, the primary flow channel 3a is coated with desiccant, which helps to improve the dehumidification capacity of the system. In addition, the two-stage primary flow channels before and after the wheel can also be reasonably coated with different types of desiccant materials. Furthermore, the primary flow channel 3a and the secondary flow channel 3b are provided with a corrugated structure. It can be understood that by adding a corrugated structure, it is helpful to increase the coating area of ​​the desiccant and enhance the heat and moisture transfer effect.

[0050] At the same time, the present invention also proposes a method for dehumidification using the cross-flow internal cooling rotor dehumidification system, which may include the following steps:

[0051] The treated air enters the dehumidification area of ​​the front-stage metal base 1a of the runner, and is adsorbed and dehumidified by the desiccant layer coated on the primary flow channel 3a to reduce the humidity.

[0052] At the same time, the movable baffle 5 switches to the top of the rear half of the cross-flow inner cooling wheel, and the cooling air flows into the secondary flow channel 3b of the front half of the cross-flow inner cooling wheel to cool the desiccant layer in the dehumidification area of ​​the front-stage metal base 1a of the wheel.

[0053] The air flowing out from the primary flow channel 3a of the dehumidification zone of the front-stage metal base 1a of the runner continues to flow into the dehumidification zone of the rear-stage insulating base 2b of the runner for adsorption dehumidification, and is then discharged as supply air.

[0054] The cooling air flowing in from the secondary flow channel 3b of the front half of the cross-flow inner cooling wheel enters the regeneration zone after recovering the regeneration residual heat and adsorption heat in the dehumidification zone of the front-stage metal matrix 1a of the wheel. The preheated air is switched through the three-way valve 7 and further heated by the heat source 6, and then enters the primary flow channel 3a of the wheel regeneration zone to heat the regenerated desiccant layer, and is finally discharged as regeneration exhaust gas.

[0055] When the dehumidification zone of the front-stage metal base 1a of the rotor is saturated with adsorption, the driving motor 8 drives the rotor to rotate, thereby realizing the up and down switching between the dehumidification zone and the regeneration zone.

[0056] At the same time, the movable baffle 5 is switched to the top of the front half of the cross-flow inner cooling wheel, and the cooling air flows into the secondary flow channel 3b of the rear half of the cross-flow inner cooling wheel to cool the desiccant layer in the dehumidification area of ​​the rear metal base 1b of the wheel.

[0057] The treated air is first dehumidified in the dehumidification area of ​​the front-stage insulating base 2a of the rotor and then flows into the dehumidification area of ​​the rear-stage metal base 1b of the rotor for adsorption dehumidification, and is then discharged as supply air.

[0058] The cooling air flowing in from the secondary flow channel 3b of the rear half of the cross-flow inner cooling wheel enters the regeneration zone after recovering the regeneration residual heat and adsorption heat in the dehumidification zone of the rear-stage metal substrate 1b of the wheel. The preheated air is switched through the three-way valve 7 and further heated by the heat source 6 before entering the primary flow channel 3a of the wheel regeneration zone to heat the regenerated desiccant layer and finally discharged as regenerated exhaust gas. This cycle is repeated to achieve continuous dehumidification.

[0059] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0060] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made based on the essence of the present invention are intended to be covered by the scope of protection of the present invention.

Claims

1. A cross-flow internal cooling rotor dehumidification system, characterized in that: include: A cross-flow internally cooled rotor with a dehumidification zone and a regeneration zone symmetrically arranged along the horizontal plane where the rotating axis is located; A driving motor, which is used to drive the cross-flow inner cooling wheel to rotate around a rotating shaft; A movable baffle, which covers the cross-flow inner cooling wheel and can switch back and forth between the front half and the rear half of the cross-flow inner cooling wheel; and Heat source, among which A fresh air inlet and a fresh air outlet are respectively provided on the left and right sides of the cross-flow inner cooling wheel, and a primary flow channel is formed between the fresh air inlet and the fresh air outlet. A cooling inlet and a cooling outlet are respectively provided on the upper and lower sides of the cross-flow inner cooling wheel, and a secondary flow channel is formed between the cooling inlet and the cooling outlet. The primary flow channel and the secondary flow channel are staggered and independent of each other. The treated air passes through the primary flow channel located in the dehumidification area and is finally discharged as supply air. After passing through the secondary flow channel, the cooling air passes through the heat source and enters the primary flow channel located in the regeneration area and is finally discharged as regeneration exhaust gas.

2. The cross-flow internally cooled rotary dehumidification system according to claim 1, characterized in that: The cross-flow internal cooling wheel has a wheel front-stage metal matrix and a wheel front-stage insulation matrix located in the front half of the wheel, and a wheel rear-stage metal matrix and a wheel rear-stage insulation matrix located in the rear half of the wheel. The wheel front-stage metal matrix and the wheel front-stage insulation matrix are symmetrically arranged along the horizontal plane where the rotation axis is located, and the two are in contact with each other in the plane where the rotation axis is located. The wheel rear-stage metal matrix and the wheel rear-stage insulation matrix are symmetrically arranged along the horizontal plane where the rotation axis is located, and the two are in contact with each other in the plane where the rotation axis is located. The wheel rear-stage insulation matrix is ​​connected to the downstream of the wheel front-stage metal matrix, and the wheel rear-stage metal matrix is ​​connected to the downstream of the wheel front-stage insulation matrix.

3. The cross-flow internally cooled rotary dehumidification system according to claim 1, characterized in that: The primary flow channel is coated with a desiccant.

4. The cross-flow internally cooled rotary dehumidification system according to claim 1, characterized in that: The primary and secondary flow channels are provided with corrugated structures.

5. The cross-flow internally cooled rotary dehumidification system according to claim 1, characterized in that: The rotating shaft of the cross-flow inner cooling wheel is provided with a through channel which is at least partially communicated with the secondary flow channel.

6. The cross-flow internally cooled rotary dehumidification system according to claim 1, characterized in that: The heat source is any one or any combination of solar energy, equipment waste heat and electric heating.

7. The cross-flow internally cooled rotary dehumidification system according to claim 1, characterized in that: The cross-flow inner cooling wheel has a cylindrical or rectangular shape.

8. The cross-flow internally cooled rotary dehumidification system according to claim 1, characterized in that: It also includes a three-way valve, one port of the three-way valve is connected to the heat source, and the other two ports of the three-way valve are both connected to the secondary flow channel.

9. The cross-flow internally cooled rotary dehumidification system according to claim 1, characterized in that: It also includes a fan, which is arranged downstream of the fresh air outlet.

10. A dehumidification method, characterized in that: The method is carried out using the cross-flow internally cooled rotary dehumidification system according to any one of claims 1 to 9, and the method comprises: The treated air enters the dehumidification area of ​​the metal base before the rotor, and is adsorbed and dehumidified by the desiccant layer coated on the primary flow channel to reduce the humidity; The movable baffle is switched to the upper part of the rear half of the cross-flow inner cooling rotor, and the cooling air flows into the secondary flow channel of the front half of the cross-flow inner cooling rotor to cool the desiccant layer in the dehumidification area of ​​the metal matrix in the front stage of the rotor; The air flowing out of the primary flow channel of the dehumidification zone of the metal matrix in the front stage of the runner continues to flow into the dehumidification zone of the adiabatic matrix in the rear stage of the runner for adsorption dehumidification, and is then discharged as supply air; The cooling air flowing in from the secondary flow channel of the front half of the cross-flow inner cooling wheel enters the regeneration zone after recovering the regeneration residual heat and adsorption heat from the dehumidification zone of the metal matrix in the front stage of the wheel. The preheated air is further heated by the heat source and then enters the primary flow channel of the regeneration zone of the wheel to heat the regenerated desiccant layer, and finally discharged as regeneration exhaust gas. After the dehumidification zone of the metal matrix in front of the rotor is saturated with adsorption, the driving motor drives the rotor to rotate, and the dehumidification zone and regeneration zone are switched up and down; The movable baffle is switched to the top of the front half of the cross-flow inner cooling rotor, and the cooling air flows into the secondary flow channel of the rear half of the cross-flow inner cooling rotor to cool the desiccant layer in the dehumidification zone of the metal substrate at the rear stage of the rotor; The treated air is first dehumidified in the dehumidification area of ​​the adiabatic base before the runner, then flows into the metal base dehumidification area after the runner for adsorption dehumidification, and then is discharged as supply air; The cooling air flowing in from the secondary flow channel of the rear half of the cross-flow inner cooling wheel enters the regeneration zone after recovering the regeneration residual heat and adsorption heat in the dehumidification zone of the metal matrix of the rear stage of the wheel. The preheated air is further heated by the heat source and enters the primary flow channel of the regeneration zone of the wheel to heat the regenerated desiccant layer, and is finally discharged as regeneration exhaust gas.

Images