Dehumidifying and reheating circulating device for constant-temperature and constant-humidity air cabinet

By introducing a dehumidification and reheat circulation device into the constant temperature and humidity air handling unit, and utilizing cooling and reheat coils to circulate air, the problems of large space occupation and low efficiency of fixed frequency compressor refrigeration are solved, achieving efficient air handling and environmental protection.

CN224236483UActive Publication Date: 2026-05-15GUANGZHOU AOLANDA ENERGY SAVING TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGZHOU AOLANDA ENERGY SAVING TECH CO LTD
Filing Date
2025-04-03
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

The auxiliary dehumidification and heat recovery system of the existing constant temperature and humidity air handling unit uses a fixed frequency compressor for refrigeration, which occupies a large space and lacks a circulation device, resulting in low equipment efficiency.

Method used

The system employs a dehumidification and reheat circulation device, including a cooling coil and a reheat coil. It circulates air by cooling and heating it, using circulating pumps for cold and hot water to dry and heat the air. Combined with the design of one-way vanes and springs, it prevents air backflow and improves air handling efficiency.

Benefits of technology

It achieves refrigerant-free cooling and heating, protects the environment, reduces failure rate, improves equipment efficiency, simplifies installation, provides higher control precision, reduces the use of electric heating, and achieves constant temperature and humidity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of constant-temperature and constant-humidity air cabinets, and provides a dehumidification reheating circulating device for a constant-temperature and constant-humidity air cabinet, which comprises a first cabinet body and a second cabinet body, the upper surface of the second cabinet body is fixedly connected with an air outlet, and one side of the air outlet is fixedly connected with a circulating pipeline. A one-way blade is fixedly and rotatably connected to the interior of the circulating pipeline, and a springback spring is fixedly connected to the outer surface of the one-way blade; the upper surface of the second cabinet body is fixedly connected with a cold water supplementing tank, and the interior of the cold water supplementing tank is fixedly connected with a first output pipe. Through the arrangement of the cooling coil pipe, entering wind energy is further dried and cooled, and then the temperature of air is increased through the reheating coil pipe, so that the device does not use a refrigerant for refrigeration and heating, the atmospheric environment is protected, the fault rate is lower than that of a conventional compressor system, installation is easy and convenient, and the control precision is higher; the utilization of heat can save the use of electric heating to achieve a constant-temperature and constant-humidity state.
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Description

Technical Field

[0001] This utility model belongs to the technical field of constant temperature and humidity air handling units, specifically relating to a dehumidification and reheating circulation device for constant temperature and humidity air handling units. Background Technology

[0002] A constant temperature and humidity air handling unit is a device that can control the internal temperature and humidity, and is mainly used to provide a stable and suitable storage environment for items.

[0003] The auxiliary dehumidification and heat recovery system in the existing constant temperature and humidity air handling unit uses a fixed frequency compressor for refrigeration, which occupies a large space and lacks a circulation device, resulting in low equipment efficiency.

[0004] Therefore, a dehumidification and reheat circulation device for a constant temperature and humidity air handling unit is proposed to solve the above problems. Utility Model Content

[0005] This utility model proposes a dehumidification and reheat circulation device for a constant temperature and humidity air handling unit, which solves the problems in the existing constant temperature and humidity air handling unit where the auxiliary dehumidification and heat recovery system uses a fixed frequency compressor for refrigeration, which occupies a large space and lacks a circulation device, resulting in low equipment efficiency.

[0006] The technical solution of this utility model is as follows: A dehumidification and reheating circulation device for a constant temperature and humidity air handling unit includes: a first cabinet and a second cabinet. An air outlet is fixedly connected to the upper surface of the second cabinet. A circulation pipe is fixedly connected to one side of the air outlet. A one-way vane is fixedly and rotatably connected inside the circulation pipe. A spring is fixedly connected to the outer surface of the one-way vane.

[0007] A cold water supply tank is fixedly connected to the upper surface of the second cabinet. A first output pipe is fixedly connected inside the cold water supply tank. A first circulation pump is fixedly connected inside the first output pipe. A cooling coil is fixedly connected to the other end of the first output pipe. A first input pipe is fixedly connected inside the cooling coil. The first input pipe is connected to the cold water supply tank.

[0008] A hot water supply tank is fixedly connected to the upper surface of the second cabinet. A second output pipe is fixedly connected inside the hot water supply tank. A second circulation pump is fixedly connected inside the second output pipe. A reheating coil is fixedly connected to the other end of the second output pipe. A second input pipe is fixedly connected inside the reheating coil. The second input pipe is connected to the hot water supply tank.

[0009] Preferably, an air intake frame is fixedly connected inside the first cabinet, and an electric louver is rotatably connected inside the air intake frame. A first air intake is provided on one side of the first cabinet, and a second air intake is provided at the connection between the first cabinet and the second cabinet.

[0010] Preferably, a spring is fixedly connected inside the first cabinet, and a fixing plate is fixedly connected to the other end of the spring. A fixing bracket is fixedly connected to the upper surface of the fixing plate.

[0011] Preferably, a blower is fixedly connected inside the fixed bracket, a flexible connecting pipe is fixedly connected to the output end of the blower, and a partition is fixedly connected to the other end of the flexible connecting pipe.

[0012] Preferably, a collection bag is fixedly connected inside the second cabinet, and a filter screen is fixedly connected inside the second cabinet, with the filter screen located after the collection bag.

[0013] Preferably, the inlet of the circulation pipe occupies half of the air outlet, and the other end of the pipe opens between the filter and the cooling coil.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] By using cooling coils, the incoming air undergoes further drying and cooling before being heated by reheat coils. This allows the device to operate without refrigerant, protecting the atmospheric environment. It also boasts a lower failure rate than conventional compressor systems, is easier to install, offers higher control precision, and eliminates the need for electric heating to achieve constant temperature and humidity. Furthermore, the circulation system allows a portion of the dried and heated air to undergo further dehumidification and reheating, ensuring proper air circulation and improving equipment efficiency. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the rear-view three-dimensional structure proposed in this utility model;

[0019] Figure 3 This utility model provides a cross-sectional perspective view of the first cabinet structure.

[0020] Figure 4 This is a cross-sectional perspective view of the second cabinet structure proposed in this utility model;

[0021] Figure 5 This is a schematic diagram of the three-dimensional structure of the unidirectional blade proposed in this utility model;

[0022] In the diagram: 1. First cabinet; 2. Second cabinet; 3. Electric louvers; 4. First air inlet; 5. Air inlet frame; 6. Second air inlet; 7. Rebound spring; 8. Fixing plate; 9. Spring; 10. Blower; 11. Fixing bracket; 12. Flexible connecting pipe; 13. Partition; 14. Collection bag; 15. Filter screen; 16. Cold water supply tank; 17. Input pipe; 18. Cooling coil; 19. First output pipe; 20. First circulation pump; 21. Hot water supply tank; 22. Air outlet; 23. Circulation pipe; 24. One-way vane; 25. Second output pipe; 26. Second input pipe; 27. Second circulation pump; 28. Reheat coil. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0024] Example 1

[0025] Please see Figure 1 -5. A dehumidification and reheating circulation device for a constant temperature and humidity fan cabinet, comprising: a first cabinet 1 and a second cabinet 2, an air outlet 22 is fixedly connected to the upper surface of the second cabinet 2, a circulation pipe 23 is fixedly connected to one side of the air outlet 22, a one-way vane 24 is fixedly rotatably connected inside the circulation pipe 23, and a rebound spring 7 is fixedly connected to the outer surface of the one-way vane 24.

[0026] A cold water supply tank 16 is fixedly connected to the upper surface of the second cabinet 2. A first output pipe 19 is fixedly connected inside the cold water supply tank 16. A first circulation pump 20 is fixedly connected inside the first output pipe 19. A cooling coil 18 is fixedly connected to the other end of the first output pipe 19. A first input pipe 17 is fixedly connected inside the cooling coil 18. The first input pipe 17 is connected to the cold water supply tank 16.

[0027] A hot water supply tank 21 is fixedly connected to the upper surface of the second cabinet 2. A second output pipe 25 is fixedly connected inside the hot water supply tank 21. A second circulation pump 27 is fixedly connected inside the second output pipe 25. A reheating coil 28 is fixedly connected to the other end of the second output pipe 25. A second input pipe 26 is fixedly connected inside the reheating coil 28. The second input pipe 26 is connected to the hot water supply tank 21.

[0028] The technical solution provided in this embodiment is as follows: First, the blower 10 and the electric louver 3 are started by an external control system. After starting, the blower 10 draws air in from the first air inlet 4 and the electric louver 3, and then enters the second air inlet through the flexible connecting pipe 12 and the partition. After passing through the second air inlet 6, the air first passes through the collection bag 14 to filter out impurities, and then passes through the filter screen 15 for further filtration to ensure air cleanliness. Then, it passes through the cooling coil 18 for cooling and drying. The first circulation pump 20 continuously circulates the cold water inside the cold water supply tank 16 to the cooling coil 18. Next, the dried cold air passes through... The air is heated by the reheat coil 28. The second circulation pump 27 continuously circulates the hot water in the hot water supply tank 21 to the reheat coil 28. Then, some air is directly discharged through the air outlet 22, and some air is transported through the circulation pipe 23 to the cooling coil 18 for another drying and reheating. When the air passes through the circulation pipe 23, it will pass through a simple one-way valve composed of a one-way vane 24 and a spring 7 to prevent air backflow. At the same time, it can also prevent insufficient airflow speed when the equipment starts up, which would result in insufficient negative pressure between the filter screen 15 and the cooling coil 18, causing untreated air to be discharged directly through the circulation pipe 23, thus improving the efficiency of the equipment.

[0029] Example 2

[0030] Based on Embodiment 1, in this embodiment: a spring 9 is fixedly connected inside the first cabinet 1, a fixing plate 8 is fixedly connected to the other end of the spring 9, and a fixing bracket 11 is fixedly connected to the upper surface of the fixing plate 8.

[0031] The technical solution provided in this embodiment is as follows: After the blower 10 is started, it will generate a certain vibration. The spring 9 installed inside the first cabinet 1 will isolate the vibration transmitted by the blower 10 to the fixed bracket 11. The spring 6 is fitted with a limit post, which can avoid the connection instability of the fixed plate 8 caused by the start of the blower 10.

[0032] Furthermore, an air inlet frame 5 is fixedly connected inside the first cabinet 1, and an electric louver 3 is rotatably connected inside the air inlet frame 5. A first air inlet 4 is opened on one side of the first cabinet 1, and a second air inlet 6 is opened at the connection between the first cabinet 1 and the second cabinet 2.

[0033] Specifically, the amount of air that can enter the equipment can be controlled in a timely manner by setting up the electric louvers 3.

[0034] Furthermore, a spring 9 is fixedly connected inside the first cabinet 1, and a fixing plate 8 is fixedly connected to the other end of the spring 9. A fixing bracket 11 is fixedly connected to the upper surface of the fixing plate 8.

[0035] Specifically, the spring 9 can isolate part of the vibration generated by the blower 10, reducing the overall vibration and noise of the equipment.

[0036] Furthermore, a blower 10 is fixedly connected inside the fixed bracket 11, and a flexible connecting pipe 12 is fixedly connected to the output end of the blower 10. A partition 13 is fixedly connected to the other end of the flexible connecting pipe 12.

[0037] Specifically, the flexible connecting pipe 12 improves the airtightness of the blower 10 during output, thereby increasing the overall working efficiency of the equipment.

[0038] Furthermore, a collection bag 14 is fixedly connected inside the second cabinet 2, and a filter screen 15 is fixedly connected inside the second cabinet 2, with the filter screen 15 located after the collection bag 14.

[0039] Specifically, the cleanliness of the air is further improved by setting up a two-layer filtration system.

[0040] Furthermore, the inlet of the circulation pipe 23 occupies half of the air outlet 22, and its other end is located between the filter 15 and the cooling coil 18.

[0041] Specifically, by positioning the outlet of the circulation pipe 23 between the filter screen 15 and the cooling coil 18, the circulation pipe 23 can utilize the low-pressure area generated by the high airflow velocity when the air just passes through the filter screen 15 to form a certain negative pressure within the circulation pipe 23, allowing the circulation pipe 23 to further dehumidify and reheat a portion of the treated air.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A dehumidification and reheat circulation device for a constant temperature and humidity air handling unit, comprising a first cabinet (1) and a second cabinet (2): characterized in that, An air outlet (22) is fixedly connected to the upper surface of the second cabinet (2). A circulation pipe (23) is fixedly connected to one side of the air outlet (22). A one-way vane (24) is fixedly rotatably connected inside the circulation pipe (23). A rebound spring (7) is fixedly connected to the outer surface of the one-way vane (24). A cold water supply tank (16) is fixedly connected to the upper surface of the second cabinet (2). A first output pipe (19) is fixedly connected inside the cold water supply tank (16). A first circulation pump (20) is fixedly connected inside the first output pipe (19). A cooling coil (18) is fixedly connected to the other end of the first output pipe (19). A first input pipe (17) is fixedly connected inside the cooling coil (18). The first input pipe (17) is connected to the cold water supply tank (16). A hot water supply tank (21) is fixedly connected to the upper surface of the second cabinet (2). A second output pipe (25) is fixedly connected inside the hot water supply tank (21). A second circulation pump (27) is fixedly connected inside the second output pipe (25). A reheat coil (28) is fixedly connected to the other end of the second output pipe (25). A second input pipe (26) is fixedly connected inside the reheat coil (28). The second input pipe (26) is connected to the hot water supply tank (21).

2. The dehumidification and reheat circulation device for a constant temperature and humidity fan cabinet according to claim 1, characterized in that: An air inlet frame (5) is fixedly connected inside the first cabinet (1), and an electric louver (3) is rotatably connected inside the air inlet frame (5). A first air inlet (4) is opened on one side of the first cabinet (1), and a second air inlet (6) is opened at the connection between the first cabinet (1) and the second cabinet (2).

3. The dehumidification and reheat circulation device for a constant temperature and humidity fan cabinet according to claim 1, characterized in that: A spring (9) is fixedly connected inside the first cabinet (1), and a fixing plate (8) is fixedly connected to the other end of the spring (9). A fixing bracket (11) is fixedly connected to the upper surface of the fixing plate (8).

4. The dehumidification and reheat circulation device for a constant temperature and humidity fan cabinet according to claim 3, characterized in that: A blower (10) is fixedly connected inside the fixed bracket (11), and a flexible connecting pipe (12) is fixedly connected to the output end of the blower (10). A partition (13) is fixedly connected to the other end of the flexible connecting pipe (12).

5. The dehumidification and reheat circulation device for a constant temperature and humidity fan cabinet according to claim 1, characterized in that: A collection bag (14) is fixedly connected inside the second cabinet (2), and a filter screen (15) is fixedly connected inside the second cabinet (2), the filter screen (15) being after the collection bag (14).

6. The dehumidification and reheat circulation device for a constant temperature and humidity fan cabinet according to claim 1, characterized in that: The inlet of the circulation pipe (23) occupies half of the air outlet (22), and the other end of the outlet is located between the filter (15) and the cooling coil (18).