Combined air handling unit
By integrating functions such as sterilization, heat exchange, and humidification into a combined air handling unit, the problems of single function and low integration in existing air handling units are solved, achieving efficient air handling and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 漯河中恒辰瑞环境科技有限公司
- Filing Date
- 2025-07-31
- Publication Date
- 2026-06-09
AI Technical Summary
Existing air handling units have limited functionality and low integration, requiring multiple units to be used together, resulting in cumbersome installation processes, large space occupation, and high energy consumption.
A modular air handling unit was designed, integrating functions such as sterilization, heat exchange, humidification, and fan into one unit. The combined handling components within the ductwork achieve full air coverage, and the sliding plate and linkage structure facilitate the installation and maintenance of the modules.
It achieves full-process coverage of air handling, saves installation space, reduces energy consumption, and improves the practicality and ease of maintenance of the device.
Smart Images

Figure CN224340286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of air treatment technology, and in particular to a combined air treatment device. Background Technology
[0002] In modern building environments, indoor air quality, temperature and humidity balance, and air circulation efficiency have become key factors affecting living comfort and the stability of the production environment. As the core equipment to achieve the above functions, combined air handling units are widely used in commercial buildings, industrial plants, medical facilities, and large public facilities.
[0003] In the existing technology, the various functions of air handling are mostly implemented by independent equipment. These devices are structurally independent and are connected by a complex network of pipes to form an air handling system.
[0004] However, existing air handling units are usually single-function and have low integration. They require multiple devices to be used together. This not only requires planning installation space and pipe interfaces for each device separately, but also requires coordinating the operating parameters of different devices to avoid conflicts. This makes the system installation process cumbersome, and the stacking of a large number of independent devices will occupy a lot of physical space and consume a lot of energy. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a combined air handling unit, which aims to improve the problems that existing air handling units are usually single in function, have low integration, require multiple devices to be used together, resulting in a complicated system installation process, and the stacking of a large number of independent devices will occupy a lot of physical space and consume a lot of energy.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a combined air handling device, including a pipe, wherein a fresh air inlet and a supply air outlet are fixedly connected to the upper surface of the pipe, a return air inlet is fixedly connected to one side of the outer wall of the pipe, and a combined handling component is provided inside the pipe;
[0007] The combined processing components include a sterilization and disinfection module one, the outer wall of which is disposed inside a pipe. A heat exchanger module is disposed on the air outlet side of the sterilization and disinfection module one, a surface cooler module is disposed on the air outlet side of the heat exchanger module, a humidification and fan section is disposed on the air outlet side of the surface cooler module, and a sterilization and disinfection module two is disposed on the air outlet side of the humidification and fan section. The heat exchanger module, the surface cooler module, the humidification and fan section, and the outer wall of the sterilization and disinfection module two are disposed inside the pipe.
[0008] Furthermore, the first sterilization and disinfection module is provided with a mixing and processing section on the air inlet side, and the second sterilization and disinfection module is provided with an air outlet section on the air outlet side.
[0009] Furthermore, a pre-filter is fixedly connected to the inner wall of the fresh air inlet, and a medium-efficiency filter is fixedly connected to the inner wall of the return air inlet.
[0010] Furthermore, a hinge is fixedly connected to one side of the outer wall of the pipe, an inspection door is fixedly connected to one side of the outer wall of the hinge, a door handle is fixedly connected to one side of the outer wall of the inspection door, and a magnetic sealing ring is fixedly connected to the other side of the outer wall of the inspection door.
[0011] Furthermore, a guide rail is fixedly connected to the bottom of the inner wall of the pipe, and a sliding plate is slidably connected to the inner wall of the guide rail.
[0012] Furthermore, a baffle is fixedly connected to the upper surface of the slide plate, a sliding hole is provided on the upper surface of the slide plate, a guide rail is fixedly connected to the lower surface of the slide plate, the slide plate is slidably connected to the inner wall of the guide rail, and the outer wall of the slide plate is slidably connected to the inner wall of the sliding hole.
[0013] Furthermore, a fixing plate is fixedly connected to the lower surface of the second sliding plate, and the outer wall of the fixing plate is provided with a second sliding hole.
[0014] Furthermore, a connecting rod is rotatably connected to the lower surface of the slide plate, one end of the connecting rod is rotatably connected to the inner wall of the second sliding hole, and a spring is fixedly connected to one side of the inner wall of the second sliding hole, one end of the spring is fixedly connected to one end of the connecting rod.
[0015] This utility model has the following beneficial effects:
[0016] 1. This utility model integrates fresh air introduction, return air treatment, air purification, heat exchange, humidification, sterilization and air supply functions into one, thereby achieving full coverage of the air treatment process, replacing multiple equipment combinations, saving installation space, reducing energy consumption, and adapting to the high-efficiency air treatment needs of multiple scenarios, thus improving the practicality of the device.
[0017] 2. In this utility model, the relevant module can be moved out of the pipe by sliding the first slide plate on the first guide rail. Then, the second slide plate slides in the second guide rail and the first sliding hole. Combined with the movement of the connecting rod in the second sliding hole and the elasticity of the spring, the relevant module can be removed or clamped. This makes it convenient to clean the inside of the pipe and replace parts, improving the maintenance convenience and flexibility of the equipment, and thus improving the practicality of the device. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of the combined air handling device proposed in this utility model.
[0019] Figure 2 This is a schematic diagram of the piping section of the combined air handling device proposed in this utility model.
[0020] Figure 3 This is a schematic diagram of a portion of the slide plate structure of the combined air handling device proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of the maintenance door portion of the combined air handling unit proposed in this utility model.
[0022] Figure 5 This is a schematic diagram of the connecting rod section of the combined air handling device proposed in this utility model.
[0023] Legend:
[0024] 1. Ductwork; 2. Fresh air inlet; 3. Return air inlet; 4. Mixing and treatment section; 5. Sterilization and disinfection module one; 6. Heat exchanger module; 7. Surface cooler module; 8. Humidifier and fan section; 9. Sterilization and disinfection module two; 10. Air outlet section; 11. Air supply outlet; 12. Hinge; 13. Inspection door; 14. Door handle; 15. Magnetic sealing ring; 16. Guide rail one; 17. Slide plate one; 18. Baffle; 19. Slide hole one; 20. Slide plate two; 21. Guide rail two; 22. Fixing plate; 23. Slide hole two; 24. Connecting rod; 25. Spring; 26. Medium-efficiency filter; 27. Pre-filter. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Reference Figure 1 and Figure 2This utility model provides an embodiment of a combined air handling unit, including a duct 1. The duct 1 accommodates the combined handling components and guides airflow, thereby providing installation space for each functional module and forming a complete airflow path. A fresh air inlet 2 and an air outlet 11 are fixedly connected to the upper surface of the duct 1. The fresh air inlet 2 is equipped with an electric regulating valve, which can dynamically adjust the fresh air volume according to indoor demand. A pre-filter 27 inside the fresh air inlet 2 is used to intercept large particulate pollutants, thereby preventing large particulate impurities from entering the unit, preventing equipment wear and subsequent processing module blockage, and extending the service life of the unit. The air outlet 11 is used to deliver the treated air into the room, thereby realizing the renewal and regulation of indoor air and improving the indoor environment. One side of the outer wall of the duct 1 is fixed. The system is connected to a return air inlet 3, with a medium-efficiency filter 26 installed at the inlet to remove suspended particles. A pre-filter 27 is fixedly connected to the inner wall of the fresh air inlet 2, and a medium-efficiency filter 26 is fixedly connected to the inner wall of the return air inlet 3. A combined treatment assembly is installed inside the duct 1, including a sterilization and disinfection module 5. This module 5 is used for preliminary sterilization and dust removal of the mixed air, thereby killing germs and adsorbing particulate matter, thus initially purifying the air and laying the foundation for subsequent treatment. The outer wall of the sterilization and disinfection module 5 is located inside the duct 1. A heat exchanger module 6 is installed on the outlet side of the sterilization and disinfection module 5. The heat exchanger module 6 is used for heat exchange between the fresh air and exhaust air, preheating the fresh air in winter and precooling it in summer. To reduce subsequent heating and cooling energy consumption and improve energy utilization, heat exchanger module 6 contains a high-efficiency plate heat exchange core for heat transfer between fresh and exhaust air, which is common knowledge and will not be elaborated further here. A surface cooler module 7 is located on the air outlet side of heat exchanger module 6. Surface cooler module 7 is used for air cooling, dehumidification, or heating. In summer, chilled water is used for cooling and dehumidification; in winter, hot water or an electric heating module is used for heating, thereby precisely regulating air temperature and humidity to meet indoor environmental requirements. Surface cooler module 7 contains a refrigerant coil for heat exchange, increasing the heat exchange area and improving heat exchange efficiency, which is common knowledge and will not be elaborated further here. A humidification and fan section 8 is located on the air outlet side of surface cooler module 7. The humidification module in humidification and fan section 8 is used for air... Humidification is performed to adjust the air humidity according to the indoor humidity requirements, avoiding excessively dry or humid air. A fan provides the airflow power to overcome system resistance and push the treated air downstream, ensuring smooth air delivery. A sterilization module 9 is located on the outlet side of the humidification and fan section 8. The heat exchanger module 6, surface cooler module 7, and the outer walls of the humidification and fan section 8 and the sterilization module 9 are located inside the duct 1. A mixing section 4 is located on the inlet side of the sterilization module 5. The mixing section 4 is used to mix and evenly distribute fresh air and return air, ensuring a sufficient and proportional mixture for subsequent treatment, providing a stable airflow foundation and improving treatment efficiency. An outlet section 10 is located on the outlet side of the sterilization module 9.The air outlet section 10 is used to deliver the treated air to the air outlet 11, thereby guiding the airflow and ensuring that the air is smoothly delivered out of the unit.
[0027] Reference Figures 3-5 A hinge 12 is fixedly connected to one side of the outer wall of pipe 1. The hinge 12 works with the inspection door 13 to open and close, facilitating maintenance of the unit's interior. The inspection door 13 is fixedly connected to one side of the outer wall of hinge 12, and a door handle 14 is fixedly connected to one side of the outer wall of inspection door 13. A magnetic sealing ring 15 is fixedly connected to the other side of the outer wall of inspection door 13. The magnetic sealing ring 15 seals the gap between the inspection door 13 and pipe 1, preventing air leakage, reducing energy loss, and ensuring the unit's airtightness. A guide rail 16 is fixedly connected to the bottom of the inner wall of pipe 1. The guide rail 16 slides with a sliding plate 17, allowing related modules to be moved out of pipe 1 for easy cleaning or replacement. A sliding plate 17 is slidably connected to the inner wall of guide rail 16, and a baffle 18 is fixedly connected to the upper surface of sliding plate 17. The surface has a sliding hole 19. The lower surface of the sliding plate 17 is fixedly connected to the guide rail 21. The inner wall of the guide rail 21 is slidably connected to the sliding plate 20. The sliding plate 20, together with the connecting rod 24 and the spring 25, performs elastic clamping movement to realize automatic reset and locking after the module is installed, ensuring that the module is stably fixed during operation and avoiding shaking. The outer wall of the sliding plate 20 is slidably connected to the inner wall of the sliding hole 19. The lower surface of the sliding plate 20 is fixedly connected to the fixing plate 22. The outer wall of the fixing plate 22 has a sliding hole 23. The lower surface of the sliding plate 17 is rotatably connected to the connecting rod 24. One end of the connecting rod 24 is rotatably connected to the inner wall of the sliding hole 23. One side of the inner wall of the sliding hole 23 is fixedly connected to the spring 25. The spring 25 pushes the connecting rod 24 through elastic force to keep the sliding plate 20 close to the baffle 18, thereby realizing the fastening of the relevant module. One end of the spring 25 is fixedly connected to one end of the connecting rod 24.
[0028] Working Principle: When purifying, regulating temperature and humidity, and circulating indoor air, fresh air first enters the unit through the fresh air inlet 2, where it passes through the pre-filter 27 to intercept large particulate pollutants. Indoor return air is introduced through the return air inlet 3, where it passes through the medium-efficiency filter 26 to remove suspended particles. Subsequently, the fresh and return air mix in the mixing section 4. The mixed air then enters the core processing flow, flowing through the sterilization module 5, where ultraviolet germicidal lamps kill germs, and the electrostatic dust removal unit adsorbs particulate matter, thus initially purifying the air. The air then enters the heat exchanger module 6. In summer, exhaust air and fresh air exchange sensible or total heat through the core, pre-cooling the fresh air to reduce subsequent cooling load. In winter, it preheats the fresh air to reduce heating energy consumption. The air after heat exchange enters the surface cooler module 7. In the first season, the air is cooled and dehumidified by chilled water. In the second season, the air is heated by hot water or electric heating. Then, the air enters the humidification and fan section 8. The humidification module humidifies the dry air as needed to increase the air humidity. At the same time, the fan provides the power required for the air to flow in the pipe (1) to overcome the system resistance and push the treated air downstream. Finally, the air flows through the sterilization and disinfection module 2 (9) for the second stage of final sterilization and disinfection to prevent potential secondary pollution inside the equipment during the process. The treated air is delivered to the air outlet 11 through the air outlet section 10. It integrates sterilization, heat exchange, temperature and humidity regulation and other functions to achieve full coverage of air treatment process, replace multiple equipment combinations, save installation space, reduce energy consumption, and adapt to the high-efficiency air treatment needs of multiple scenarios.
[0029] Secondly, when the inside of pipe 1 needs to be cleaned or components replaced, the relevant module can be moved out of pipe 1 by sliding the slide plate 17 on the guide rail 16. Then, the relevant module can be removed by sliding the slide plate 20 in the guide rail 21 and the sliding hole 19. After cleaning or replacement, the slide plate 20 can be slid in the guide rail 21 and the sliding hole 19 again. Combined with the movement of the connecting rod 24 in the sliding hole 23 and the elasticity of the spring 25, the module can be clamped. This makes it convenient to clean the inside of pipe 1 and replace components, improving the maintenance convenience and flexibility of the equipment.
[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.
Claims
1. A combined air handling unit, comprising a duct (1), characterized in that: The upper surface of the pipe (1) is fixedly connected to a fresh air inlet (2) and an air outlet (11), and a return air inlet (3) is fixedly connected to one side of the outer wall of the pipe (1). The pipe (1) is equipped with a combined processing component. The combined processing components include a sterilization and disinfection module one (5), the outer wall of which is disposed inside the pipe (1), a heat exchanger module (6) is disposed on the air outlet side of the sterilization and disinfection module one (5), a surface cooler module (7) is disposed on the air outlet side of the heat exchanger module (6), a humidification and fan section (8) is disposed on the air outlet side of the surface cooler module (7), and a sterilization and disinfection module two (9) is disposed on the air outlet side of the humidification and fan section (8). The outer walls of the heat exchanger module (6), the surface cooler module (7), the humidification and fan section (8) and the sterilization and disinfection module two (9) are disposed inside the pipe (1).
2. The combined air handling unit according to claim 1, characterized in that: The sterilization and disinfection module one (5) has a mixing treatment section (4) on the air inlet side, and the sterilization and disinfection module two (9) has an air outlet section (10) on the air outlet side.
3. The combined air handling unit according to claim 1, characterized in that: A primary filter (27) is fixedly connected to the inner wall of the fresh air inlet (2), and a medium-efficiency filter (26) is fixedly connected to the inner wall of the return air inlet (3).
4. The combined air handling unit according to claim 1, characterized in that: A hinge (12) is fixedly connected to one side of the outer wall of the pipe (1), an inspection door (13) is fixedly connected to one side of the outer wall of the hinge (12), a door handle (14) is fixedly connected to one side of the outer wall of the inspection door (13), and a magnetic sealing ring (15) is fixedly connected to the other side of the outer wall of the inspection door (13).
5. The combined air handling unit according to claim 1, characterized in that: The bottom of the inner wall of the pipe (1) is fixedly connected to a guide rail (16), and the inner wall of the guide rail (16) is slidably connected to a sliding plate (17).
6. The combined air handling unit according to claim 5, characterized in that: A baffle (18) is fixedly connected to the upper surface of the slide plate (17). A sliding hole (19) is opened on the upper surface of the slide plate (17). A guide rail (21) is fixedly connected to the lower surface of the slide plate (17). A slide plate (20) is slidably connected to the inner wall of the guide rail (21). The outer wall of the slide plate (20) is slidably connected to the inner wall of the sliding hole (19).
7. The combined air handling unit according to claim 6, characterized in that: A fixing plate (22) is fixedly connected to the lower surface of the sliding plate (20), and a sliding hole (23) is provided on the outer wall of the fixing plate (22).
8. The combined air handling unit according to claim 6, characterized in that: A connecting rod (24) is rotatably connected to the lower surface of the slide plate (17). One end of the connecting rod (24) is rotatably connected to the inner wall of the sliding hole (23). A spring (25) is fixedly connected to one side of the inner wall of the sliding hole (23). One end of the spring (25) is fixedly connected to one end of the connecting rod (24).