Air treatment device and low dew point sulfation air treatment system

Abstract

The application relates to an air treatment device and a low-dew-point sulfonation air treatment system, which comprises a dryer with an inlet and an outlet, and a partition plate arranged in the dryer and extending from the inlet to the outlet, the partition plate divides the internal space of the dryer into multiple independent drying zones; a first distributor is arranged at the inlet of the dryer and is provided with a first gas inlet and a second gas outlet; a second distributor is arranged at the outlet of the dryer and is provided with a first gas outlet and a second gas inlet. The air treatment device and the low-dew-point sulfonation air treatment system are designed to realize the static state of the drying bed body in the dryer, and the drying bed body does not need to rotate, but the distributors at the inlet and the outlet of the dryer are driven to rotate, so that the air continuously flows in the drying zone for drying, and the saturated drying bed layer is synchronously heated and evaporated, thereby realizing the continuous adsorption and desorption circulation alternating process.

Description

Technical Field

[0001] This invention relates to the field of gas treatment technology, and in particular to an air treatment device and a low dew point sulfonated air treatment system. Background Technology

[0002] In existing technologies, with the acceleration of industrialization, the demand for air treatment technology is increasing, especially in industries with stringent environmental requirements such as chemical, pharmaceutical, and food processing. The core objective of air treatment technology is to ensure that air quality meets specific process requirements, including but not limited to regulating air temperature and humidity, removing harmful substances, lowering dew point, and filtering particulate matter. These processes are crucial for ensuring product quality, improving production efficiency, and ensuring operational safety.

[0003] Traditional air handling technologies typically rely on a series of complex devices and processes, such as dryers, filters, and coolers. Among these systems, the design and operation of the dryer are particularly critical. Traditional dryers often use a rotating drying bed to achieve continuous air drying and desiccant regeneration. However, as the scale of the equipment increases, this design encounters significant challenges in practical operation: the rotation of large dryers not only requires enormous driving force but also easily leads to equipment wear and failure, increasing maintenance difficulty and operating costs.

[0004] Therefore, the industry urgently needs a new type of air handling unit that can meet the needs of large-scale industrial applications while addressing the efficiency and safety issues inherent in traditional designs. The ideal solution should provide efficient, energy-saving, and easy-to-maintain air handling capabilities, while reducing equipment complexity and operational risks. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an air handling device and a low-dew-point sulfonated air handling system that achieves static drying bed inside a dryer while still ensuring a continuous adsorption-desorption cycle.

[0006] To achieve the above objectives, in one aspect, the present invention provides an air handling apparatus, comprising:

[0007] The dryer has an inlet and an outlet, and the dryer has a partition plate extending from the inlet to the outlet inside, which divides the internal space of the dryer into multiple independent drying zones;

[0008] The first distributor is installed at the inlet of the dryer and is provided with a first gas inlet and a second gas outlet;

[0009] The second distributor is installed at the outlet of the dryer and is provided with a first gas outlet and a second gas inlet;

[0010] The first distributor and the second distributor are coaxially arranged and configured to rotate synchronously relative to the dryer under the drive of an external drive mechanism, so that the first gas inlet connects to the first gas outlet through the drying zone to form a drying path, and the second gas inlet connects to the second gas outlet through the drying zone to form a regeneration path. As the first distributor and the second distributor rotate, the drying zone corresponding to the drying path or the regeneration path is periodically switched.

[0011] To achieve a simple and effective continuous adsorption-desorption cycle, the first distributor includes a shell, a fixed disk, a rotating disk, and a drive shaft. The first gas inlet and the second gas outlet are axially spaced on the outer wall of the shell, and the shell is fixedly installed at the inlet of the dryer. The fixed disk has vents corresponding to the drying zones, and the fixed disk and the rotating disk are coaxially arranged within the shell. The rotating disk is located within the shell and coaxially fixedly connected to the drive shaft, and it has two independent chambers: a first chamber and a second chamber. The first gas inlet communicates with any vent through the first chamber, and the second gas outlet communicates with any vent through the second chamber. The drive shaft receives the driving force from an external drive mechanism and rotates the rotating disk. At any given time, the vents connected in the first chamber and the vents connected in the second chamber do not coincide. The structure of the second distributor is the same as that of the first distributor.

[0012] To improve drying efficiency and overall air treatment effect, the first gas inlet is connected to at least one vent through the first chamber, and the second gas outlet is connected to at least one vent through the second chamber, wherein the number of vents connected to the first chamber is less than the number of vents connected to the second chamber.

[0013] To achieve precise control over the flow paths of the first and second gases, the rotating disk includes a first partition and a second partition fixedly connected coaxially to the drive shaft. The first partition is close to the fixed disk and spaced apart from the second partition to form the first cavity. The first partition has a first cavity opening and a second cavity opening. The side of the second partition facing away from the first partition is spaced apart from the inner wall of the shell to form the second cavity. The second partition has a third cavity opening, which is connected to the second cavity opening through a pipe. The first gas inlet is connected to the first gas outlet through the first cavity, the first cavity opening, the vent, and the drying zone to form the drying path. The second gas inlet is connected to the second gas outlet through the drying zone, the vent, the second cavity opening, the pipe, the third cavity opening, and the second cavity to form the second gas outlet to form the second gas path.

[0014] To further improve drying efficiency and overall air handling performance, the opening area of ​​the first cavity is smaller than that of the second cavity.

[0015] To prevent potential gas leakage, a first sealing ring is provided at the opening edge of the first cavity, and a second sealing ring is provided at the opening edge of the second cavity. An installation groove adapted to the first sealing ring and the second sealing ring is provided on the plate surface of the first partition facing the fixed plate.

[0016] A further embodiment is that the first and second partitions are provided with a third sealing ring on their periphery, which forms a sealing fit with the inner wall of the housing.

[0017] On the other hand, the present invention provides a low dew point sulfonated air treatment system, including the air treatment device described in the above-described scheme.

[0018] The air handling device and low dew point sulfonated air handling system designed in this invention achieves static drying of the drying bed inside the dryer through structural design. This eliminates the need to rotate the drying bed; instead, by driving the distributors at the dryer's inlet and outlet to rotate, air flows continuously within the drying zone for drying, while simultaneously heating and evaporating the saturated drying bed. This achieves a continuous adsorption-desorption cycle. This design not only avoids the enormous driving force required for large dryers, improving drying efficiency and equipment stability, but also provides a more efficient, energy-saving, and safe solution for the design and operation of large air handling devices. It is expected to significantly reduce energy consumption in industrial production, reduce environmental pollution, and improve the overall economic benefits of the process. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall planar structure of Example 1;

[0020] Figure 2 This is a three-dimensional structural diagram of the drying zone in Example 1;

[0021] Figure 3 This is a schematic diagram of the planar structure of the first distributor in Embodiment 1;

[0022] Figure 4 This is an exploded perspective view of the rotating disk in Example 1;

[0023] Figure 5 This is a schematic diagram of the planar structure of the fixed disk and the drying zone in Example 1;

[0024] Figure 6 This is a schematic diagram of the planar structure of the first partition in Embodiment 1;

[0025] Figure 7 This is a schematic diagram of the docking plane between the first partition and the fixed disk in Embodiment 1;

[0026] Figure 8 This is a three-dimensional cross-sectional view of the first partition plate docking with the fixed plate in Embodiment 1;

[0027] Figure 9 This is a schematic diagram of another embodiment of the pore structure in Example 1.

[0028] The components include: dryer 1, partition plate 36, drying zone 37, first distributor 2, shell 81, fixed plate 22, air hole 221, rotating plate 23, first chamber 231, second chamber 232, first partition plate 233, first chamber opening 2331, second chamber opening 2332, second partition plate 234, third chamber opening 2341, drive shaft 82, first gas inlet 3, second gas outlet 4, second distributor 5, first gas outlet 6, second gas inlet 7, drying path 8, regeneration path 9, pipe 10, mounting groove 20, third sealing ring 30, and drive mechanism 10. Detailed Implementation

[0029] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0030] Example 1.

[0031] like Figure 1-9 As shown, in one aspect, this embodiment provides an air handling device, including:

[0032] The dryer 1 has an inlet and an outlet, and the dryer 1 is provided with a partition plate 36 extending from the inlet to the outlet, the partition plate 36 dividing the internal space of the dryer 1 into multiple independent drying zones 37;

[0033] The first distributor 2 is installed at the inlet of the dryer 1 and is provided with a first gas inlet 3 and a second gas outlet 4.

[0034] The second distributor 5 is installed at the outlet of the dryer 1 and is provided with a first gas outlet 6 and a second gas inlet 7.

[0035] The first distributor 2 and the second distributor 5 are coaxially arranged and configured to rotate synchronously relative to the dryer 1 under the drive of an external drive mechanism, so that the first gas inlet 3 connects to the first gas outlet 6 through the drying zone 37 to form a drying path 8, and the second gas inlet 7 connects to the second gas outlet 4 through the drying zone 37 to form a regeneration path 9. As the first distributor 2 and the second distributor 5 rotate, the drying zone 37 corresponding to the drying path 8 or the regeneration path 9 is periodically switched.

[0036] In specific implementation, the air drying process in the low dew point sulfonation process in the chemical industry is used as an example. The dryer 1 is divided into multiple independent drying zones 37 by a partition plate 36. These drying zones 37 are filled with desiccant, such as silica gel or molecular sieve, to adsorb moisture in the air. The first distributor 2 and the second distributor 5 are installed at the inlet and outlet of the dryer 1, respectively, and rotate synchronously and coaxially through an external drive mechanism (e.g., drive mechanism 10).

[0037] In this way, at work, such as Figure 1 and Figure 2 As shown, the air to be treated first enters the first distributor 2 through the first gas inlet 3, and then enters a drying zone 37 of the dryer 1. In the drying zone 37, the moisture in the air is adsorbed by the desiccant, and then moves along the drying path 8 to the dried air outlet 6 and is discharged from the dryer 1. At the same time, the regenerated hot air enters the second distributor 5 through the second gas inlet 7, and then flows through the drying zone 37 (i.e., the regeneration path 9) adjacent to the drying path 8 through the partition plate 36, heating the desiccant that has adsorbed moisture to desorb the moisture and regenerate the desiccant. Then, as the first distributor 2 and the second distributor 5 rotate synchronously, the above processing steps are continuously carried out in sequence, that is, new air to be treated continuously enters the dryer 1, and the dried air is continuously discharged from the outlet 6. Meanwhile, the regenerated hot air is discharged from the second gas outlet 4 after completing the regeneration of the desiccant.

[0038] Thus, by utilizing the above structural design, the dryer 1 is made static. Only the inlet and outlet distributors (2,5) of the dryer 1 need to be rotated to ensure a continuous flow of air through the regenerated drying zone 37. This continuous cycle eliminates the need for enormous driving force required in traditional large dryers, significantly improving drying efficiency and enhancing equipment stability. Therefore, the air handling unit provided in this embodiment offers a more efficient, energy-saving, and safer option for the design and operation of large air handling units, thereby optimizing the economic benefits of the entire process. Furthermore, the static design of the dryer 1 eliminates the need to consider complex rotating mechanisms, allowing for effective installation and layout in both space-constrained factory environments and more spacious industrial areas. This allows the dryer 1 to be optimized for specific process flows. For example, a horizontal arrangement may be more suitable for processes requiring horizontal airflow because it provides a more uniform airflow distribution and better heat exchange efficiency; while a vertical arrangement may be more suitable for processes with vertical airflow because it effectively utilizes gravity for natural airflow descent, reducing energy consumption. This not only reduces initial investment costs, but also lowers long-term operating costs due to its high efficiency and low maintenance characteristics, thereby improving the overall economic benefits of the process.

[0039] Specifically, such as Figure 3-7 As shown, to achieve a simple and effective continuous adsorption-desorption cycle, the first distributor 2 includes a housing 81, a fixed disk 22, a rotating disk 23, and a drive shaft 82. The first gas inlet 3 and the second gas outlet 4 are axially spaced on the outer wall of the housing 81, and the housing 81 is fixedly installed at the inlet of the dryer 1. The fixed disk 22 has air holes 221 corresponding to the drying zone 37, and the fixed disk 22 and the rotating disk 23 are coaxially arranged inside the housing 81. The rotating disk 23 is located inside the housing 81 and is coaxial with the drive shaft 82. The shaft is fixedly connected, and the rotating disk 23 has a first cavity 231 and a second cavity 232 that are independent of each other; the first gas inlet 3 communicates with any air hole 221 through the first cavity 231, and the second gas outlet 4 communicates with any air hole 221 through the second cavity 232; the transmission shaft 82 is used to receive the driving force of the external driving mechanism and rotate the rotating disk 23, and at any given time, the air hole 221 communicating in the first cavity 231 and the air hole 221 communicating in the second cavity 232 do not coincide; the structure of the second distributor 5 is the same as the structure of the first distributor 2. In this embodiment, the rotation speed of the rotating disk 23 is configured to be 5-20 r / min. In addition, as another design option, the opening shape of the air hole 221 can be as follows. Figure 9 The fan-shaped structure shown is not specifically limited here.

[0040] In practice, the housing 81 is fixedly connected to the inlet of the dryer 1 via a flange, ensuring the structural stability of the device. The drive shaft 82 receives power from the drive mechanism 10, driving the rotating disk 23 to rotate. During this process, the first gas inlet 3 remains in communication with the first chamber 231, while the second gas outlet 4 remains in communication with the second chamber 232. As the rotating disk 23 rotates, the first chamber 231 and the second chamber 232 alternately communicate with the air holes 221 on the fixed disk 22, ensuring that at any given time, the air holes 221 connected to the first chamber 231 and the second chamber 232 will not coincide simultaneously, thus effectively preventing the mixing of dry air and regenerated hot air.

[0041] Furthermore, the second distributor 5 has the same structural design as the first distributor 2 and is equipped with a mechanism that rotates synchronously with the first distributor 2. This synchronous rotation ensures that the first gas inlet 3 and the second gas inlet 7 can pass through the drying zone 37 sequentially and connect with the first gas outlet 6 and the second gas outlet 4 respectively. This design ensures the continuous connection of the drying path 8 and the regeneration path 9 to achieve efficient continuous adsorption-desorption cycles. Thus, the simplified structure and reduced moving parts reduce equipment wear and failure rate, thereby reducing maintenance and repair needs and long-term operating costs.

[0042] In some embodiments, such as Figure 4 and Figure 7 As shown, to improve drying efficiency and overall air treatment effect, the first gas inlet 3 is connected to at least one vent 221 through the first chamber 231, and the second gas outlet 4 is connected to at least one vent 221 through the second chamber 232. The number of vents 221 connected to the first chamber 231 is less than the number of vents 221 connected to the second chamber 232. Because the number of vents 221 connected to the first chamber 231 is less than that connected to the second chamber 232 (as shown in the attached figure, the number of vents 221 connected to the first chamber 231 is greater than that connected to the second chamber 232), more dry air can enter the drying zone 37 through the second chamber 232. This helps improve the regeneration efficiency of the desiccant and the drying effect of the air. Furthermore, by configuring the number of vents 221 connected to each of the first chamber 231 and the second chamber 232, the device can adjust the flow ratio of dry air and the second gas according to different processing requirements, enhancing the adaptability and multi-functionality of the device, thereby meeting different gas process treatment needs.

[0043] In some embodiments, such as Figure 4 , Figure 7 and Figure 8 As shown, in order to achieve precise control of the flow paths of the first and second gases, the rotating disk 23 includes a first partition 233 and a second partition 234 coaxially and fixedly connected to the drive shaft 82. The first partition 233 is in close contact with the fixed disk 22 and spaced apart from the second partition 234 to form the first cavity 231. The first partition 233 is provided with a first cavity opening 2331 and a second cavity opening 2332. The side of the second partition 234 opposite to the first partition 233 forms the second cavity 232 spaced apart from the inner wall of the housing 81. The second partition 234 is provided with a third cavity 2341, and the third cavity 2341 is connected to the second cavity 2332 through the pipe 10; the first gas inlet 3 is connected to the first gas outlet 6 through the first cavity 231, the first cavity 2331, the vent 221, and the drying zone 37 to form the drying path 8; the second gas inlet 7 is connected to the second gas outlet 4 through the drying zone 37, the vent 221, the second cavity 2332, the pipe 10, the third cavity 2341, and the second cavity 232 to form the second gas path.

[0044] Thus, through the ingenious design of the first partition 233 and the second partition 234, the interior of the housing 81 is divided into two independent regions (231, 232). These two independent regions are connected to the first gas inlet 3 and the second gas outlet 4, respectively, and are isolated from each other by the pipe 10, ensuring the independence of the airflow. During operation, under the action of the drive mechanism 10, the rotating disk 23 rotates. At this time, the first gas inlet 3 remains connected to the first chamber 231, and the first chamber opening 2331 aligns sequentially with the air hole 221 during the rotation of the rotating disk 23. This design ensures that the first gas flows along the predetermined drying path 8, while the second gas inlet 7 enters the second chamber opening 2332 through the drying zone 37 and the air hole 221, and flows into the third chamber opening 2341 through the pipe 10, finally connecting with the second gas outlet 4 in the second chamber 232 to form the regeneration path 9. Overall, this structure achieves precise control of the flow paths of the first and second gases, ensuring the orderly flow of airflow and maximizing processing efficiency.

[0045] In this embodiment, as Figure 4 As shown, to further improve drying efficiency and the overall effect of air handling, the opening area of ​​the first cavity 2331 is smaller than the opening area of ​​the second cavity 2332 (the attached figure shows a design choice where the opening area of ​​the first cavity 2331 is larger than the opening area of ​​the second cavity 2332). The larger opening area of ​​the first cavity 2331 allows more hot air to enter the drying zone 37, which helps to improve the efficiency of regenerating the desiccant, remove moisture from the air more quickly, and thus improve the overall drying efficiency.

[0046] In some embodiments, such as Figure 4 As shown, to prevent potential gas leakage, a first sealing ring is provided at the opening edge of the first cavity 2331, and a second sealing ring is provided at the opening edge of the second cavity 2332. An installation groove 20, adapted to the first and second sealing rings, is provided on the surface of the first partition 233 facing the fixed disk 22. Good sealing performance ensures the flow of dry gas and regenerated gas within a predetermined path, avoiding disorderly gas leakage, thereby improving the overall system efficiency and processing effect.

[0047] Furthermore, the periphery of the first partition 233 and the second partition 234 is provided with a third sealing ring 30 that forms a sealing fit with the inner wall of the housing 81. In this embodiment, the third sealing ring 30 enhances the sealing effect between the rotating disk and the housing, ensuring that gas does not leak from the gap between the rotating disk and the housing when the rotating disk rotates, thereby maintaining a sealed environment inside the system.

[0048] On the other hand, this embodiment also provides a low dew point sulfonated air treatment system, including the air treatment device described in the above solution.

[0049] The air handling device and low dew point sulfonated air handling system provided in this embodiment achieve static drying of the drying bed inside the dryer through structural design. This eliminates the need to rotate the drying bed; instead, by driving the distributors at the dryer's inlet and outlet to rotate, air flows continuously within the drying zone for drying, while simultaneously heating and evaporating the saturated drying bed. This achieves a continuous adsorption-desorption cycle. This design not only avoids the enormous driving force required for large dryers, improving drying efficiency and equipment stability, but also provides a more efficient, energy-saving, and safe solution for the design and operation of large air handling devices. It is expected to significantly reduce energy consumption in industrial production, reduce environmental pollution, and improve the overall economic benefits of the process.

[0050] In the description of this invention, it should be noted that the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0051] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0052] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An air handling device, characterized in that, include: The dryer has an inlet and an outlet, and the dryer has a partition plate extending from the inlet to the outlet inside, which divides the internal space of the dryer into multiple independent drying zones; A first distributor is installed at the inlet of the dryer and has a first gas inlet and a second gas outlet; a second distributor is installed at the outlet of the dryer and has a first gas outlet and a second gas inlet; wherein the first distributor and the second distributor are coaxially arranged and configured to rotate synchronously relative to the dryer under the drive of an external drive mechanism, so that the first gas inlet connects to the first gas outlet through the drying zone to form a drying path, and the second gas inlet connects to the second gas outlet through the drying zone to form a regeneration path, and the drying zone corresponding to the drying path or regeneration path is periodically switched as the first distributor and the second distributor rotate; The first distributor includes a housing, a fixed disk, a rotating disk, and a drive shaft. A first gas inlet and a second gas outlet are axially spaced on the outer wall of the housing. The housing is fixedly installed at the inlet of the dryer. The fixed disk has air holes corresponding to the drying zones, and the fixed disk and the rotating disk are coaxially disposed within the housing. The rotating disk is disposed within the housing and coaxially fixedly connected to the drive shaft. The rotating disk has a first cavity and a second cavity that are independent of each other. The first gas inlet communicates with any air hole through the first cavity, and the second gas outlet communicates with any air hole through the second cavity. The drive shaft receives the driving force from an external drive mechanism and rotates the rotating disk. At any given time, the air holes connected in the first cavity and the air holes connected in the second cavity do not coincide. The structure of the second distributor is the same as that of the first distributor. The rotating disk includes a first partition and a second partition fixedly connected coaxially to the drive shaft. The first partition is close to the fixed disk and spaced apart from the second partition to form the first cavity. The first partition has a first cavity opening and a second cavity opening. The side of the second partition away from the first partition is spaced apart from the inner wall of the shell to form the second cavity. The second partition has a third cavity opening, and the third cavity opening is connected to the second cavity opening through a pipe. The first gas inlet is connected to the first gas outlet through the first cavity, the first cavity opening, the vent, and the drying zone to form the drying path. The second gas inlet is connected to the second gas outlet through the drying zone, the vent, the second cavity opening, the pipe, the third cavity opening, and the second cavity to form the second gas outlet to form the second gas path.

2. The air handling apparatus according to claim 1, characterized in that, The first gas inlet is connected to at least one vent through the first cavity, and the second gas outlet is connected to at least one vent through the second cavity, wherein the number of vents connected to the first cavity is less than the number of vents connected to the second cavity.

3. The air handling apparatus according to claim 1, characterized in that, The opening area of ​​the first cavity is smaller than the opening area of ​​the second cavity.

4. The air handling apparatus according to claim 2, characterized in that, The first cavity has a first sealing ring at its opening edge, and the second cavity has a second sealing ring at its opening edge. The first partition plate has an installation groove on its surface facing the fixed plate that is compatible with the first and second sealing rings.

5. The air handling apparatus according to claim 4, characterized in that, The first and second partitions are provided with a third sealing ring on their periphery, which forms a sealing fit with the inner wall of the housing.

6. A low dew point sulfonated air handling system, characterized in that, Includes the air handling apparatus according to any one of claims 1 to 5.

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