A rotary dehumidifier with a co-current air duct structure

Abstract

This invention discloses a rotary dehumidifier with a unidirectional airflow structure, comprising: a treatment air duct, including a treatment air inlet and a treatment air outlet, for guiding treatment air to flow sequentially through the treatment air inlet, the dehumidifying rotor, and the treatment air outlet in a first direction; and a regeneration air duct, including a regeneration air inlet and a regeneration air outlet, for guiding regeneration air to flow sequentially through the regeneration air inlet, the dehumidifying rotor, and the regeneration air outlet in a second direction; the first and second directions are unidirectional. This ensures the long-term stability of the dehumidifying rotor's sealing structure, reduces mutual interference between the regeneration air and the treatment air, and provides reliable dehumidification.

Description

Technical Field

[0001] This invention relates to the field of rotary dehumidifier technology, and particularly to a rotary dehumidifier with a co-directional air duct structure. Background Technology

[0002] Rotary dehumidifiers use a continuously rotating dehumidifying wheel to adsorb and desorb moisture, thus completing the dehumidification process of the air.

[0003] Existing rotary dehumidifiers use a reverse airflow design, meaning the flow direction of the treatment airflow is opposite to that of the regeneration airflow.

[0004] Long-term practice has revealed that rotary dehumidifiers using the aforementioned reverse airflow design are prone to tilting. This is because the airflow exerts a force on the dehumidifying rotor as it passes through it. The opposing forces on both sides of the rotor create a shearing effect, making the rotor susceptible to misalignment. This misalignment damages the sealing structure at the regenerated air outlet, causing hot and humid regenerated air to leak into the processing air side or into the equipment. This not only reduces the dryness of the processed air but also wastes energy and affects dehumidification stability. Summary of the Invention

[0005] The technical problem to be solved by this invention is: how to solve the problem of mutual interference between regenerated air and processing air.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is: a rotary dehumidifier with a co-directional air duct structure, comprising: The processing air duct includes a processing air inlet and a processing air outlet, which are used to guide the processing air to flow sequentially through the processing air inlet, the dehumidifying wheel and the processing air outlet in a first direction. The regenerated air duct includes a regenerated air inlet and a regenerated air outlet, which are used to guide the regenerated air to flow sequentially through the regenerated air inlet, the dehumidifying impeller and the regenerated air outlet in a second direction; The first direction and the second direction are in the same direction.

[0007] The beneficial effects of this invention are as follows: It provides a rotary dehumidifier with a co-directional airflow structure. By setting the first direction of the treatment airflow duct guiding the treatment airflow channel and the second direction of the regeneration airflow duct guiding the regeneration airflow channel to be in the same direction, the airflow force exerted by the treatment air and the regeneration air on the dehumidification rotor is consistent. This avoids the shearing effect caused by the opposite airflow direction in the traditional reverse airflow design, effectively reduces the tilt of the dehumidification rotor, thereby ensuring the long-term stability of the dehumidification rotor sealing structure, reducing the mutual interference between the regeneration air and the treatment air, and ensuring reliable dehumidification effect. Attached Figure Description

[0008] Figure 1This is a schematic diagram of a rotary dehumidifier with a unidirectional air duct structure according to an embodiment of the present invention; Figure 2 This is a schematic diagram of another embodiment of the present invention; Figure 3 This is a schematic diagram of the dehumidifying impeller according to an embodiment of the present invention; Label Explanation: 1. Processing air duct; 2. Regeneration air duct; 3. Housing; 4. Dehumidifying impeller; 5. Dehumidifying impeller mounting bracket; 6. First partition; 7. Second partition; 8. Heating box; 11. Processing air inlet; 12. Processing air outlet; 13. Processing fan; 21. Regeneration air inlet; 22. Regeneration air outlet; 23. Regeneration fan; 41. Processing section; 42. Regeneration section; 61. First partition opening; 71. Second partition opening. Detailed Implementation

[0009] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0010] Before detailing the embodiments of this application, some related concepts will first be explained: In existing technologies, rotary dehumidifiers typically include a dehumidifying rotor 4, which is made of heat-resistant materials such as ceramic fibers to form a honeycomb structure, and has highly hydrophilic adsorption materials such as silica gel or molecular sieves attached to its surface.

[0011] The dehumidifying impeller 4 is divided into a treatment area and a regeneration area by a sealing assembly, and the two areas are isolated from each other. During operation, the treatment fan 13 introduces the air to be dehumidified into the treatment area, and the water vapor in the air is adsorbed by the adsorbent material to form dry air, which is then sent out. At the same time, the regeneration fan 23 introduces outside air into the regeneration area after it has been heated by a heater. The high-temperature air causes the moisture adsorbed in the adsorbent material to desorb and be discharged to the outside with the regeneration air.

[0012] The dehumidification rotor 4 rotates continuously at a slow speed, causing the rotor to alternately pass through the treatment zone and the regeneration zone, thereby achieving a continuous and stable dehumidification process.

[0013] In the specific air duct layout of the above-mentioned rotary dehumidifier, a reverse air duct design is usually adopted, that is, the flow direction of the treatment air duct 1 is opposite to the flow direction of the regeneration air duct 2.

[0014] Long-term practice has revealed that in rotary dehumidifiers employing the aforementioned reverse airflow design, the airflow exerts a force on the dehumidifying rotor 4. The opposing airflow causes the forces on both sides of the rotor 4 to flow in opposite directions, creating a shear effect. This makes the rotor 4 prone to tilting during long-term operation. The tilting of the rotor 4 damages the sealing structure at the regeneration air outlet, leading to leakage of hot and humid regeneration air into the processing air side or the equipment interior. This not only reduces the dryness of the processing air and affects the dehumidification effect but also wastes energy, ultimately impacting the stability and reliability of the dehumidification process.

[0015] To at least solve the above problems, please refer to Figure 1 One embodiment of the present invention provides a rotary dehumidifier with a co-directional air duct structure, comprising: The processing air duct 1 includes a processing air inlet 11 and a processing air outlet 12, which are used to guide the processing air to flow sequentially through the processing air inlet 11, the dehumidifying wheel 4 and the processing air outlet 12 in a first direction. The regenerated air duct 2 includes a regenerated air inlet 21 and a regenerated air outlet 22, which are used to guide the regenerated air to flow sequentially through the regenerated air inlet 21, the dehumidifying wheel 4 and the regenerated air outlet 22 in a second direction; The first direction and the second direction are in the same direction.

[0016] As can be seen from the above description, the beneficial effects of the present invention are as follows: It provides a rotary dehumidifier with a co-directional air duct structure. By setting the first direction of the treatment air duct 1 guiding the treatment airflow channel and the second direction of the regeneration air duct 2 guiding the regeneration airflow channel to be in the same direction, the airflow force exerted by the treatment air and the regeneration air on the dehumidification rotary wheel 4 is consistent. This avoids the shearing effect caused by the opposite airflow direction in the traditional reverse air duct design, effectively reduces the tilt of the dehumidification rotary wheel 4, thereby ensuring the long-term stability of the sealing structure of the dehumidification rotary wheel 4, reducing the mutual interference between the regeneration air and the treatment air, and ensuring reliable dehumidification effect.

[0017] Furthermore, both the first direction and the second direction are vertical. The processing air inlet 11 is located above the processing air outlet 12; The regenerated air inlet 21 is located above the regenerated air outlet 22.

[0018] As described above, this structure sets both the first and second directions to vertical, with the processing air inlet 11 located above the processing air outlet 12 and the regeneration air inlet 21 located above the regeneration air outlet 22. This allows both the processing air and the regeneration air to flow from top to bottom through the dehumidifying impeller 4, utilizing the characteristics of airflow and its own weight to assist the flow and reduce fan energy consumption. At the same time, the unidirectional vertical flow helps the dehumidifying impeller 4 maintain balance during operation.

[0019] Furthermore, it also includes: The housing 3 contains the dehumidifying wheel 4. The processing air inlet 11 and the processing air outlet 12 are located on the same side of the housing 3; The regenerated air inlet 21 and the regenerated air outlet 22 are located on the same side of the housing 3.

[0020] As can be seen from the above description, this structure simplifies the pipe connection and facilitates the pipe layout of the equipment in the machine room or installation space by setting the processing air inlet 11 and processing air outlet 12 on the same side of the housing 3, and setting the regenerated air inlet 21 and regenerated air outlet 22 on the same side of the housing 3.

[0021] Furthermore, the dehumidifying impeller 4 is provided with a processing section 41 and a regeneration section 42 along the circumferential direction. The processing section 41 is connected to the processing air duct 1, and the regeneration section 42 is connected to the regeneration air duct 2. The sector angle occupied by the processing unit 41 is greater than that occupied by the regeneration unit 42.

[0022] As can be seen from the above description, this structure improves dehumidification efficiency by arranging a processing section 41 and a regeneration section 42 along the circumferential direction of the dehumidification rotor 4, and by limiting the sector angle occupied by the processing section 41 to be greater than that occupied by the regeneration section 42. This results in a longer contact time between the processing air and the dehumidification part of the dehumidification rotor 4 within a unit rotation cycle.

[0023] Furthermore, it also includes: A dehumidifying wheel mounting bracket 5 is disposed inside the housing 3 and is used to install the dehumidifying wheel 4; The dehumidification rotor mounting bracket 5 is located between the processing air inlet 11 and the processing air outlet 12; The dehumidification rotor mounting bracket 5 is located between the regenerated air inlet 21 and the regenerated air outlet 22.

[0024] As described above, the structure places the dehumidifying rotor mounting bracket 5 inside the housing 3, and between the processing air inlet 11 and the processing air outlet 12, and between the regeneration air inlet 21 and the regeneration air outlet 22. This ensures that the dehumidifying rotor 4 is positioned in the middle of the airflow path within both the processing air duct 1 and the regeneration air duct 2, allowing the airflow to pass evenly through the entire effective area of ​​the dehumidifying rotor 4. The central arrangement of the dehumidifying rotor mounting bracket 5 helps to reduce the rotational vibration of the dehumidifying rotor 4 and improves the stability of the rotary dehumidifier.

[0025] Furthermore, it also includes: The processing fan 13 is connected to the processing air outlet 12 and is used to drive the processing air to flow along the processing air duct 1; A regeneration fan 23 is connected to the regeneration air outlet 22 and is used to drive the regeneration air to flow along the regeneration air duct 2. The heating box 8 is connected to the regenerated air inlet 21 and is used to heat the regenerated air.

[0026] As described above, the structure is formed by connecting the processing fan 13 and the regeneration fan 23 to the processing air outlet 12 and the regeneration air outlet 22 respectively, and by connecting the heating box 8 to the regeneration air inlet 21, thus forming a complete processing air drive, regeneration air drive and regeneration heating system.

[0027] Furthermore, it also includes: The first partition 6 is disposed inside the housing 3 and located above the dehumidifying wheel 4; The second partition 7 is disposed inside the housing 3 and located below the dehumidifying wheel 4.

[0028] As can be seen from the above description, this structure forms relatively independent cavity areas on both sides of the dehumidifying impeller 4 by setting the first partition 6 and the second partition 7 above and below the dehumidifying impeller 4, respectively.

[0029] Furthermore, the first partition 6 is provided with a first partition opening 61, which is close to the processing air inlet 11 and is used to control the processing air speed. The second partition 7 is provided with a second partition opening 71, which is close to the processing air outlet 12 and is used to control the processing air speed.

[0030] As described above, the first partition 6 is located between the processing air inlet 11 and the dehumidifying rotor 4, and the second partition 7 is located between the dehumidifying rotor 4 and the processing air outlet 12. This allows the processing air to pass through the throttling effect of the first partition opening 61 before entering the dehumidifying rotor 4, and then be throttled again by the second partition opening 71 after leaving the dehumidifying rotor 4, thus forming a regular vertical airflow channel. The way the openings are set close to the air inlet and outlet makes the wind speed control point located at the key position of the airflow entering and leaving the rotor, resulting in a more direct and effective control effect, and the ability to accurately control the wind speed of the processing air flowing through the dehumidifying rotor 4.

[0031] Furthermore, the first partition opening 61 and the second partition opening 71 are used to make the processing air velocity flowing through the processing air duct 1 2.5 m / s.

[0032] As can be seen from the above description, by reasonably configuring the aperture and opening ratio of the first partition hole 61 and the second partition hole 71, the processing air velocity flowing through the processing air duct 1 is controlled at 2.5 m / s. This wind speed is the optimal dehumidification efficiency range verified by experiments. At this wind speed, the processing air and the dehumidification rotor 4 are in full contact, ensuring sufficient contact time to ensure the dehumidification effect.

[0033] Furthermore, the first partition 6 and the second partition 7 divide the interior of the housing 3 into a processing air area and a regeneration air area, so that the processing air duct 1 and the regeneration air duct 2 are isolated from each other.

[0034] As can be seen from the above description, the structure physically separates the internal space of the shell 3 through the first partition 6 and the second partition 7, forming independent processing air area and regeneration air area. The processing air duct 1 and the regeneration air duct 2 are located in different areas separated by partitions inside the housing 3, which effectively prevents crossflow or mixing of processing air and regeneration air inside the housing 3, avoids the mixing of humid and hot air that may leak from the regeneration air side into the processing air side, and ensures that the dryness of the processing air meets the design requirements.

[0035] For details, please refer to Figure 1 In an embodiment of the present invention, the housing 3 has a cuboid structure, forming an internal accommodating space. One side of the housing 3 is provided with a processing air inlet 11 and a processing air outlet 12, and the other side is provided with a regeneration air inlet 21 and a regeneration air outlet 22, with the two sides arranged opposite to each other. The air inlet is located above the air outlet, and the processing air inlet 11 and the regeneration air inlet 21 are at the same horizontal height, as are the processing air outlet 12 and the regeneration air outlet 22.

[0036] The dehumidifying impeller 4 is rotatably disposed inside the housing 3, with its axis of rotation extending horizontally, meaning the dehumidifying impeller 4 is placed vertically. The dehumidifying impeller 4 is cylindrical, filled with moisture-absorbing material (such as silica gel or molecular sieve), and divided into a processing section 41 and a regeneration section 42 along its circumference. The sector angle occupied by the processing section 41 is greater than that occupied by the regeneration section 42 (e.g., the sector angle occupied by the processing section 41 is 270 degrees, and the sector angle occupied by the regeneration section 42 is 90 degrees).

[0037] The dehumidifying rotor 4 is mounted on the dehumidifying rotor mounting bracket 5, which is fixed inside the housing 3 and located between the processing air inlet 11 and the processing air outlet 12, as well as between the regeneration air inlet 21 and the regeneration air outlet 22.

[0038] The processing air duct 1 is composed of the internal space of the housing 3 and corresponding pipes, including a processing fan 13, a processing air inlet 11, and a processing air outlet 12. The processing air duct 1 guides the processing air to flow sequentially along a first direction through the processing air inlet 11, the processing section 41 of the dehumidifying impeller 4, and the processing air outlet 12. The outlet of the processing fan 13 is sealed to the processing air outlet 12 and is used to drive the processing air to flow along the processing air duct 1.

[0039] The regeneration air duct 2 consists of the internal space of the housing 3 and corresponding pipes, including a regeneration fan 23, a regeneration air inlet 21, and a regeneration air outlet 22. The regeneration air duct 2 guides the regeneration air to flow sequentially along a second direction through the regeneration air inlet 21, the regeneration section 42 of the dehumidifying impeller 4, and the regeneration air outlet 22. The outlet of the regeneration fan 23 is sealed to the regeneration air outlet 22, driving the regeneration air to flow along the regeneration air duct 2. A heating box 8 is located at the regeneration air inlet 21 to heat the regeneration air to a preset temperature to ensure the regeneration of the dehumidifying impeller 4.

[0040] It is worth noting that the first direction and the second direction are in the same direction. In this embodiment, both the first direction and the second direction are vertical, that is, the overall flow direction of the processing air duct 1 and the regeneration air duct 2 is vertical, flowing from the air inlet to the air outlet.

[0041] The first partition 6 and the second partition 7 are both located inside the housing 3. The first partition 6 is located on one side of the dehumidifying impeller 4, between the processing air inlet 11 and the dehumidifying impeller 4; the second partition 7 is located on the other side of the dehumidifying impeller 4, between the dehumidifying impeller 4 and the processing air outlet 12. The first partition 6 and the second partition 7 divide the interior of the housing 3 into a processing air area and a regeneration air area, and together with corresponding ducts, achieve physical isolation between the processing air duct 1 and the regeneration air duct 2 inside the housing 3, preventing airflow cross-contamination.

[0042] In addition, the first partition 6 in this embodiment has a first partition opening 61, which is close to the processing air inlet 11; the second partition 7 has a second partition opening 71, which is close to the processing air outlet 12. The aperture and opening ratio of the first partition opening 61 and the second partition opening 71 are determined according to the design air volume calculation, and are configured so that the processing air velocity flowing through the processing air duct 1 is a predetermined value (2.5 m / s), which is used to achieve the best dehumidification efficiency.

[0043] To at least solve the above problems, please refer to Figure 2Another embodiment of the present invention provides a rotary dehumidifier with a co-directional airflow structure. The difference from the previous embodiment is that the dehumidifying rotor 4 in this embodiment is rotatably disposed inside the housing 3, with its rotation axis extending vertically; that is, the dehumidifying rotor 4 is placed vertically. Regardless of whether the dehumidifying rotor 4 is placed vertically or horizontally, as long as the flow directions of the processing air and the regeneration air are set to be in the same direction, the shearing effect of the airflow in the traditional reverse airflow structure can be effectively avoided, rotor skewness can be reduced, and sealing reliability can be guaranteed.

[0044] In summary, the rotary dehumidifier with a unidirectional airflow structure of the present invention has the following beneficial effects: 1. By setting the first direction of the processing air duct 1 and the second direction of the regeneration air duct 2 to be in the same direction, the forces exerted by the two airflows on the dehumidification rotor 4 are in the same direction, which effectively reduces the tilting of the dehumidification rotor 4 caused by the opposite airflow direction in the traditional reverse air duct design, thereby ensuring the working stability of the rotor dehumidifier and extending the service life of the equipment. 2. By setting up the first partition 6 and the second partition 7, and opening the partitions near the air inlet and outlet, the wind speed of the treated air is controlled so that the wind speed of the treated air is at the optimal dehumidification speed (2.5 m / s). 3. The partition divides the interior of the housing 3 into a mutually isolated processing air area and a regeneration air area, effectively preventing regeneration air from leaking to the processing air side and ensuring that the dryness of the processing air consistently meets the design requirements.

[0045] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A rotary dehumidifier with a co-directional air duct structure, characterized in that, include: The processing air duct includes a processing air inlet and a processing air outlet, which are used to guide the processing air to flow sequentially through the processing air inlet, the dehumidifying wheel and the processing air outlet in a first direction. The regenerated air duct includes a regenerated air inlet and a regenerated air outlet, which are used to guide the regenerated air to flow sequentially through the regenerated air inlet, the dehumidifying impeller and the regenerated air outlet in a second direction; The first direction and the second direction are in the same direction.

2. A rotary dehumidifier with a co-directional air duct structure according to claim 1, characterized in that, Both the first direction and the second direction are vertical. The processing air inlet is located above the processing air outlet; The regenerated air inlet is located above the regenerated air outlet.

3. A rotary dehumidifier with a co-directional air duct structure according to claim 1, characterized in that, Also includes: The housing contains the dehumidifying impeller. The processing air inlet and the processing air outlet are located on the same side of the housing; The regenerated air inlet and the regenerated air outlet are located on the same side of the housing.

4. A rotary dehumidifier with a co-directional air duct structure according to claim 1, characterized in that, The dehumidifying impeller is provided with a processing section and a regeneration section along the circumferential direction. The processing section is connected to the processing air duct, and the regeneration section is connected to the regeneration air duct. The sector angle occupied by the processing unit is greater than that occupied by the regeneration unit.

5. A rotary dehumidifier with a co-directional air duct structure according to claim 1, characterized in that, Also includes: A dehumidifying rotor mounting bracket is disposed inside the housing and is used to mount the dehumidifying rotor; The dehumidifying rotor is installed between the processing air inlet and the processing air outlet. The dehumidifying impeller is installed between the regenerated air inlet and the regenerated air outlet.

6. A rotary dehumidifier with a co-directional air duct structure according to claim 1, characterized in that, Also includes: A processing fan is connected to the processing air outlet and is used to drive the processing air to flow along the processing air duct. A regeneration fan, connected to the regeneration air outlet, is used to drive the regeneration air to flow along the regeneration air duct; A heating box, connected to the regenerated air inlet, is used to heat the regenerated air.

7. A rotary dehumidifier with a co-directional air duct structure according to claim 3, characterized in that, Also includes: The first partition is disposed inside the housing and located above the dehumidifying impeller; The second partition is located inside the housing and below the dehumidifying impeller.

8. A rotary dehumidifier with a co-directional air duct structure according to claim 7, characterized in that, The first partition plate is provided with a first partition plate opening, which is close to the processing air inlet and is used to control the processing air speed. The second partition is provided with a second partition opening, which is close to the processing air outlet and is used to control the processing air speed.

9. A rotary dehumidifier with a co-directional air duct structure according to claim 8, characterized in that, The openings in the first and second partitions are used to ensure that the air velocity of the processed air flowing through the processed air duct is 2.5 m / s.

10. A rotary dehumidifier with a co-directional air duct structure according to claim 7, characterized in that, The first partition and the second partition divide the interior of the housing into a processing air area and a regeneration air area, so that the processing air duct and the regeneration air duct are isolated from each other.

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