Rotary wheel dehumidification system
By introducing a heat pump system into the rotary dehumidification system for heat exchange, the regenerated air is heated by the condenser and cooled by the evaporator, reducing the temperature of the regenerated air to the level required for emissions. This solves the problem of high energy consumption during the rotary regeneration process and achieves energy saving and consumption reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-31
AI Technical Summary
Existing rotary dehumidification systems consume a lot of energy during the rotary regeneration process, resulting in high operating costs.
The system employs first and second heat pump systems for heat exchange, utilizes first and second condensers to heat the regenerated air, supplemented by first and second heaters as auxiliary equipment, and combines a second evaporator to cool the regenerated air, thereby reducing the need for additional cooling devices.
This reduces the power consumption of the rotary dehumidification system, saves energy, lowers operating costs, and eliminates the need for additional cooling devices.
Smart Images
Figure CN224065605U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of air treatment, and more particularly, to a rotary dehumidification system. BACKGROUND
[0002] The content in this section is provided only for background information related to the present disclosure and does not necessarily constitute the prior art.
[0003] Rotary dehumidifiers have a wide range of applications in the field of dehumidification. The rotary wheel of the dehumidifier is divided into a dehumidification area and a regeneration area. When the air to be treated passes through the dehumidification area of the rotary wheel, the moisture in the air is removed by the rotary wheel. The treated air meets the use requirements and is sent to the designated space. Dehumidification is usually carried out by adsorbing moisture with a desiccant in the rotary wheel. During the operation of the rotary dehumidifier, the rotary wheel rotates around the center axis of the rotary wheel. When the rotary wheel rotates to the regeneration area, high-temperature regeneration air passes through the rotary wheel, so that the moisture on the desiccant is desorbed, and the desiccant on the rotary wheel is regenerated, and the rotary wheel regains the ability to absorb moisture. The rotary wheel runs continuously at a low speed, and the dehumidification and regeneration processes are carried out continuously, providing continuous dry air for users.
[0004] In related technologies, in order to regenerate the rotary wheel, a heater such as an electric heater or a steam heater is usually used to heat the regeneration air to a temperature that meets the regeneration requirements, and the rotary wheel is regenerated by the heated regeneration air. In order to heat the regeneration air, the energy consumption is high, which makes the energy consumption and operating cost of the dehumidifier high. UTILITY MODEL CONTENT
[0005] In this section, a general summary of the present disclosure is provided, rather than a comprehensive disclosure of the full scope or all features of the present disclosure.
[0006] In view of the above problems of the existing rotary dehumidification system, one purpose of the present disclosure is to provide a rotary dehumidification system to reduce the energy consumption of the rotary dehumidification system in operation.
[0007] According to a first aspect of the present disclosure, a rotary dehumidification system is provided, which comprises a rotary wheel, a dehumidification flow path, a regeneration flow path, a first heat pump system and a second heat pump system. The rotary wheel comprises a dehumidification area and a regeneration area. The dehumidification flow path passes through the dehumidification area, and the air to be treated flows along the dehumidification flow path. The dehumidification area is used for dehumidifying the air to be treated. The regeneration flow path passes through the regeneration area, and the regeneration air flows along the regeneration flow path to regenerate the rotary wheel. The first heat pump system is used for heat exchange between the air treated by the dehumidification area and the regeneration air before entering the regeneration area. The second heat pump system is used for heat exchange between the regeneration air before entering the regeneration area and the air leaving the regeneration area.
[0008] In some embodiments according to the present disclosure, the first heat pump system comprises a first compressor and a first evaporator, and the dehumidification flow path passes through the first evaporator, and the air to be treated is sent to the designated space after passing through the first evaporator after being dehumidified in the dehumidification zone of the wheel.
[0009] In some embodiments according to the present disclosure, the first heat pump system further comprises a first condenser, and the first condenser is located upstream of the regeneration zone in the regeneration flow path.
[0010] In some embodiments according to the present disclosure, the second heat pump system comprises a second compressor and a second condenser, and the second condenser is located upstream of the regeneration zone in the regeneration flow path.
[0011] In some embodiments according to the present disclosure, the second heat pump system further comprises a second evaporator, and the second evaporator is located downstream of the regeneration zone in the regeneration flow path.
[0012] In some embodiments according to the present disclosure, a first heater is further included, and the first heater is located upstream of the first condenser and the second condenser in the regeneration flow path.
[0013] In some embodiments according to the present disclosure, a second heater is further included, and the second heater is located downstream of the first condenser and the second condenser and upstream of the regeneration zone in the regeneration flow path.
[0014] In some embodiments according to the present disclosure, a fan is further included, and the fan is located downstream of the second evaporator in the regeneration flow path.
[0015] In some embodiments according to the present disclosure, a first filter is further included, and the first filter is located upstream of the dehumidification zone in the dehumidification flow path.
[0016] In some embodiments according to the present disclosure, a second filter is further included, and the first filter is located upstream of the first heater in the regeneration flow path.
[0017] The rotary dehumidification system according to the present disclosure can at least achieve the following beneficial effects:
[0018] In the rotary dehumidification system of the present disclosure, the heating of the regeneration air is mainly performed by the first condenser and the second condenser, and the first heater and the second heater only serve as auxiliary heating devices, which greatly reduces the operating power consumption of the system, saves energy use, and at the same time makes the operation cost of the dehumidifier lower. At the same time, the second evaporator can cool the regeneration air leaving the regeneration zone of the wheel, so that the temperature of the regeneration air is reduced to the required temperature for discharge, without the need for additional cooling devices, further reducing the operating cost. BRIEF DESCRIPTION OF DRAWINGS
[0019] The foregoing and other features and characteristics of the present application will become more apparent from the following detailed description, taken in conjunction with the accompanying drawings, which illustrate, by way of example, the principles of the application. The description and drawings are meant only to illustrate the application and not to limit the scope thereof. In the drawings:
[0020] Figure 1 A structural schematic of a rotary dehumidification system according to an embodiment of the present disclosure is shown. DETAILED DESCRIPTION
[0021] The present disclosure will now be described in detail by way of example only with reference to the accompanying drawings. In the drawings, like reference numerals indicate like parts and components throughout the various figures. The following detailed description of the present disclosure is merely intended to illustrate certain embodiments of the present disclosure and is not intended to limit the scope of the present disclosure or its applications or uses. The embodiments described in this specification are not the only possible implementations of the present disclosure. There are many alternate and equivalent implementations that are within the scope of the present disclosure. The example embodiments can be implemented in numerous ways, and should not be construed as limiting the scope of the present disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known techniques can not be described in detail.
[0022] A rotary dehumidification system according to an embodiment of the present disclosure will now be described with reference to Figure 1
[0023] Figure 1 A structural schematic of a rotary dehumidification system according to an embodiment of the present disclosure is shown.
[0024] As shown in Figure 1 , the rotary dehumidification system includes a rotary wheel 12, a dehumidification flow path 20, a regeneration flow path 30, and a heat pump system. Spaces on the rotary wheel 12 corresponding to axial ends of the rotary wheel 12 are divided into a dehumidification zone 121 and a regeneration zone 122. The rotary wheel 12 is provided with a dehumidification medium (e.g., a desiccant), and the dehumidification medium in the dehumidification zone 121 is capable of removing (e.g., adsorbing) moisture in air to be treated that passes through the dehumidification zone 121, thereby dehumidifying the air to be treated. The rotary wheel 12 rotates about a central axis of the rotary wheel 12 during operation, and when the dehumidification medium that has adsorbed moisture reaches the regeneration zone 122, the dehumidification medium is dried and regenerated in the regeneration zone 122 by high-temperature air to regain the ability to adsorb moisture.
[0025] As shown in Figure 1 As shown, the dehumidification flow path 20 passes through the dehumidification zone 121 of the rotor 12. The air to be treated flows along the dehumidification flow path 20 to deliver the air to be treated into the dehumidification zone 121. The moisture in the air to be treated is adsorbed by the dehumidification medium in the dehumidification zone 121, thereby achieving the purpose of dehumidification. The regeneration flow path 30 passes through the regeneration zone 122 of the rotor 12. The regeneration air flows along the regeneration flow path 30 to regenerate the dehumidification medium of the rotor 12. The heat pump system is used to enable heat exchange between the air passing through the dehumidification flow path 20 and / or the air in the regeneration flow path 30.
[0026] like Figure 1 As shown, the heat pump system includes a first heat pump system 40 and a second heat pump system 50. The first heat pump system 40 is used for heat exchange between the dehumidification flow path 20 and the regeneration flow path 30, and the second heat pump system 50 is used for heat exchange between the regeneration air of the regeneration flow path 30 and the dehumidification medium in the rotor 12 before and after regeneration.
[0027] Specifically, the first heat pump system 40 includes a first compressor 2, a first evaporator 3, and a first condenser 6. The first evaporator 3 is located downstream of the dehumidification zone 121 of the rotor 12 in the dehumidification flow path 20, and the first condenser 6 is located upstream of the regeneration zone 122 of the rotor 12 in the regeneration flow path 30. The liquid refrigerant in the first heat pump system 40 absorbs heat from the outside in the first evaporator 3, cooling the dehumidified air. Simultaneously, the refrigerant, after absorbing heat, vaporizes and enters the first compressor 2, where it is compressed into high-temperature, high-pressure vapor and then enters the first condenser 6. The gaseous refrigerant releases heat and liquefies in the first condenser 6, thereby heating the regeneration air passing through the first condenser 6. The liquefied, low-temperature refrigerant then re-enters the first evaporator 3 to continue the cycle.
[0028] It should be noted that, in this article, "upstream" refers to the direction of air (regenerated air or air to be treated) before it enters the reference object. For example, "upstream" of dehumidification zone 121 refers to the direction of air to be treated before it enters dehumidification zone 121. Similarly, "downstream" refers to the direction of air (regenerated air or air to be treated) after it enters the reference object. For example, "downstream" of dehumidification zone 121 refers to the direction of air to be treated after it leaves dehumidification zone 121.
[0029] The second heat pump system 50 includes a second compressor 9, a second evaporator 10 and a second condenser 7. The second evaporator 10 is located downstream of the regeneration zone 122 of the rotary wheel 12 in the regeneration flow path 30, and the second condenser 7 is located upstream of the regeneration zone 122 of the rotary wheel 12 in the regeneration flow path 30. The liquid refrigerant in the second heat pump system 50 absorbs heat from the outside in the second evaporator 10, so that the regeneration air leaving the regeneration zone 122 of the rotary wheel 12 is cooled. At the same time, the refrigerant after absorbing heat is vaporized into high-temperature and high-pressure steam after being compressed by the second compressor 9, and then enters the second condenser 7. The gaseous refrigerant is liquefied in the second condenser 7 to heat the regeneration air passing through the second condenser 7. The low-temperature refrigerant after liquefaction enters the second evaporator 10 again to continue the cycle.
[0030] According to the rotary dehumidification system of the present embodiment, as shown in FIG. 1, the dehumidification flow path 20 can further include a first filter 1. The air to be treated passes through the first filter 1 to remove impurities, and then enters the dehumidification zone 121 of the rotary wheel 12. The dehumidified air is cooled by the first evaporator 3 and then sent to the designated space. Figure 1
[0031] The regeneration flow path 30 can further include a second filter 4, a first heater 5, a second heater 8 and a fan 11. The regeneration air from the outside passes through the second filter 4, is preheated by the first heater 5, is heated by the first condenser 6 and the second condenser 7, and then enters the second heater 8 to be further heated to the working temperature (for example, about 140°). The regeneration air heated to the working temperature enters the regeneration zone 122 of the rotary wheel 12. The high-temperature air enters the regeneration zone 122 to remove the moisture in the dehumidification medium, so that the dehumidification medium is regenerated and regains the ability to absorb moisture. The regeneration air after absorbing the moisture in the dehumidification medium is cooled by the second evaporator 10 and then discharged by the fan 11.
[0032] It should be noted that the first heater 5 of the present embodiment is not necessary. The purpose of the first heater 5 is to preheat the regeneration air before it enters the first condenser 6. When the outside environment temperature is high (for example, in summer), the regeneration air can not need to be preheated.
[0033] Similarly, the second heater 8 of the present embodiment is also not necessary. When the temperature of the regeneration air after being heated by the first condenser 6 and the second condenser 7 meets the demand for regenerating the dehumidification medium of the rotary wheel 12 (for example, the temperature of the regeneration air reaches about 140°), the air at the outlet of the second condenser 7 can directly enter the regeneration zone 122 of the rotary wheel 12 to regenerate the dehumidification medium of the rotary wheel 12.
[0034] Although the first condenser 6 is shown to be located upstream of the second condenser 7 in the accompanying drawings and the foregoing description, it should be understood that the first condenser 6 can also be located downstream of the second condenser 7. That is, the regeneration air can be heated by the second condenser 7 first and then enter the first condenser 6 for heating.
[0035] In the rotary dehumidification system disclosed according to the embodiments, the heating of the regeneration air is mainly performed by the first condenser 6 and the second condenser 7, and the first heater 5 and the second heater 8 only serve as auxiliary heating devices, which greatly reduces the operating power consumption of the system, saves the use of energy, and at the same time makes the operation cost of the dehumidifier lower. At the same time, the second evaporator 10 can cool the regeneration air leaving the regeneration zone 122 of the rotary wheel 12, so that the temperature of the regeneration air is reduced to the required temperature for discharge, without the need for additional cooling devices, further reducing the operating cost.
[0036] The preferred embodiments according to the present disclosure are described above in conjunction with specific embodiments. It can be understood that the above description is only exemplary and not limiting, and those skilled in the art can think of various modifications and changes with reference to the above description without departing from the scope of the present disclosure. These modifications and changes are also included in the protection scope of the present application.
Claims
1. A rotary dehumidification system, characterized by, The rotary dehumidification system comprises a rotary wheel (12), a dehumidification flow path (20), a regeneration flow path (30), a first heat pump system (40) and a second heat pump system (50), The rotary wheel (12) comprises a dehumidification zone (121) and a regeneration zone (122), the dehumidification flow path (20) passes through the dehumidification zone (121), the air to be treated flows along the dehumidification flow path (20), the dehumidification zone (121) is used for dehumidifying the air to be treated, and the regeneration flow path (30) passes through the regeneration zone (122), the regeneration air flows along the regeneration flow path (30), and the rotary wheel (12) is regenerated. The first heat pump system (40) is used for heat exchange between the air after being treated through the dehumidification zone (121) and the regeneration air before entering the regeneration zone (122), and the second heat pump system (50) is used for heat exchange between the regeneration air before entering the regeneration zone (122) and the air leaving the regeneration zone (122).
2. The rotary dehumidification system of claim 1, wherein, The first heat pump system (40) comprises a first compressor and a first evaporator (3), the dehumidification flow path (20) passes through the first evaporator (3), and the air after being dehumidified in the dehumidification zone (121) of the rotary wheel (12) is sent into a designated space after passing through the first evaporator (3).
3. The rotary dehumidification system according to claim 1 or 2, wherein The first heat pump system (40) further comprises a first condenser (6), and the first condenser (6) is located upstream of the regeneration zone (122) in the regeneration flow path (30).
4. The rotary dehumidification system of claim 3, wherein, The second heat pump system (50) comprises a second compressor and a second condenser (7), and the second condenser (7) is located upstream of the regeneration zone (122) in the regeneration flow path (30).
5. The rotary dehumidification system of claim 3, wherein, The second heat pump system (50) further comprises a second evaporator (10), and the second evaporator (10) is located downstream of the regeneration zone (122) in the regeneration flow path (30).
6. The rotary dehumidification system of claim 4, wherein, Further comprising a first heater (5), and the first heater (5) is located upstream of the first condenser (6) and the second condenser (7) in the regeneration flow path (30).
7. The rotary dehumidification system according to claim 4 or 6, wherein Further comprising a second heater (8), and the second heater (8) is located downstream of the first condenser (6) and the second condenser (7) and upstream of the regeneration zone (122) in the regeneration flow path (30).
8. The rotary dehumidification system of claim 5, wherein, Further comprising a fan (11), and the fan (11) is located downstream of the second evaporator (10) in the regeneration flow path (30).
9. The rotary dehumidification system of any one of claims 1-2, 4-6, and 8, wherein, Further comprising a first filter (1), and the first filter (1) is located upstream of the dehumidification zone (121) in the dehumidification flow path (20).
10. The rotary dehumidification system of claim 6, wherein, Further comprising a second filter (4), and the second filter (4) is located upstream of the first heater (5) in the regeneration flow path (30).