Air conditioning unit humidification drainage recovery device

Abstract

The utility model discloses an air conditioning unit humidification drainage recovery device belongs to humidifier field, has solved the condensate waste problem of humidification assembly in the prior art, the technical scheme that solves this problem includes humidification assembly and air conditioning unit, and humidification assembly includes atomization cavity, and with the fog pipe of atomization cavity intercommunication, and the fog pipe is bent at least partially downward to avoid external barrier, and the height of the lowest of fog pipe is lower than the height of atomization cavity, and the lowest of fog pipe is connected with recovery water tank, and recovery water tank is communicated with atomization cavity through the water outlet pipe, and recovery water tank is equipped with controller still, and water level detector and water pump are electrically connected with controller respectively, and water level detector is used to obtain the water level of recovery water tank and is converted into electric signal and is transported to controller, and controller controls the operation of water pump according to the water level of recovery water tank detected by water level detector.

Description

Technical Field

[0001] This utility model relates to the field of humidifiers, and in particular to a humidification drainage recovery device for air conditioning units. Background Technology

[0002] During the actual installation of humidifier systems for air conditioning units, the prevalence of beam structures on building sites necessitates that the mist outlet pipe pass through the beams and be folded down to ensure the feasibility of pipe routing. This results in the lowest point of the mist outlet pipe being significantly lower than the main body of the air conditioning unit. When the humid air generated by the humidifier flows through this section of the mist outlet pipe, if the temperature of the inner wall of the mist outlet pipe is lower than the dew point temperature of the surrounding air due to the low temperature of the environment or water source, water vapor in the air will condense on the inner side of the mist outlet pipe, forming pure condensate. Under the influence of gravity, this condensate will naturally collect at the lowest point of the mist outlet pipe, causing local liquid accumulation. If the amount of liquid accumulation continues to increase, it may cause leakage or dripping of the mist outlet pipe, affecting the indoor environment and equipment safety. Although existing technologies can guide the condensate to the outdoor drainage system by adding additional drainage pipes, the condensate essentially comes from the pure water used by the humidification system, and its water quality fully meets the requirements for reuse in humidification. Directly discharging it into the outdoor drainage system would waste water resources. Utility Model Content

[0003] The purpose of this invention is to provide a humidification drainage recovery device for air conditioning units, which solves the problem of condensate waste in the humidification components in the prior art and enables the condensate of the humidification components to be recovered and reused.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: an air conditioning unit humidification and drainage recovery device, comprising a humidification component and an air conditioning unit, wherein the humidification component includes an atomizing chamber and a mist outlet pipe communicating with the atomizing chamber, the mist outlet pipe being at least partially bent downwards to avoid external obstacles, the lowest point of the mist outlet pipe being lower than the height of the atomizing chamber, the lowest point of the mist outlet pipe being connected to a recovery water tank, the recovery water tank being connected to the atomizing chamber via a water outlet pipe, the recovery water tank also being equipped with a controller, and a water level detector and a water pump respectively electrically connected to the controller, the water level detector being used to acquire the water level of the recovery water tank and convert it into an electrical signal to be transmitted to the controller, the controller controlling the operation of the water pump based on the water level detected by the water level detector in the recovery water tank.

[0005] After adopting the above technical solution, this utility model has the following advantages: A recovery water tank is set at the lowest point of the mist outlet pipe. The condensate is naturally collected and temporarily stored in the recovery water tank by gravity, which avoids the accumulation in the pipe and leakage as much as possible. Since the recovery water tank is lower than the atomizing chamber, gravity alone cannot achieve backflow. Therefore, a water pump is added to actively transport the condensate from the low-level recovery water tank to the high-level atomizing chamber, realizing the reuse of pure condensate and having good water-saving benefits. At the same time, a water level detector is set in the recovery water tank, which is linked with the controller and the water pump. The water pump is only started when the water level reaches the set threshold, which ensures that there is enough water for effective backflow as much as possible, and avoids the water pump from frequently starting and stopping or running dry due to low water level, thus improving the stability and energy efficiency of the system operation.

[0006] Furthermore, the water level detector includes a high water level sensor and a low water level sensor, which detect high water levels and low water levels respectively.

[0007] Using the aforementioned technical solution, the low water level sensor ensures that the water pump stops running when the water level in the tank is below the safety lower limit, thus preventing damage from dry running as much as possible. The high water level sensor triggers the water pump to start when the water level reaches the effective recovery capacity, ensuring that there is sufficient condensate water for each pumping and improving the reuse efficiency. This allows the water pump to start only when the water level rises to a high level and stop when it drops to a low level, thus preventing frequent start-stops caused by small fluctuations in water level.

[0008] Furthermore, the air conditioning unit includes a condensate pipe for draining condensate, and the recovery water tank is also provided with an overflow outlet, which is located above the high water level sensor, and the overflow outlet is connected to the condensate pipe of the air conditioning unit through the overflow pipe.

[0009] Using the aforementioned technical solution, when the water level in the recovery tank rises abnormally and exceeds the position of the high water level sensor, the excess condensate can still be automatically discharged into the condensate pipe of the air conditioning unit through the overflow outlet, without the need for an additional drainage system, thus minimizing the risk of water tank overflow causing equipment immersion or indoor water leakage.

[0010] Furthermore, the recycled water tank is also equipped with an alarm, which is connected to the controller.

[0011] With the above technical solution, when the water level in the recovery tank is abnormal, such as when the high water level sensor is continuously triggered, the controller can determine that it is a water pump failure, pipeline blockage, or control system malfunction, and immediately trigger the alarm to remind maintenance personnel to intervene in time, so as to avoid condensate overflow causing equipment damage or indoor pollution as much as possible.

[0012] Furthermore, the mist outlet pipe and the water recovery tank are connected by a drain pipe, the diameter of which is smaller than the diameter of the mist outlet pipe.

[0013] Using the aforementioned technical solution, the mist outlet pipe is mainly used to transport atomized humid air. If the drain pipe is directly connected to the recovery water tank with a large diameter, some humid air may enter the recovery water tank directly through the drain pipe without going through the air supply system, resulting in humidification loss and airflow turbulence. However, using a small-diameter drain pipe significantly increases airflow resistance, allowing humid air to flow preferentially along the mist outlet pipe, while only condensate flows into the recovery water tank through the drain pipe by gravity, thereby ensuring the humidification effect and the stability of the airflow organization.

[0014] Furthermore, the recycling tank is also equipped with an overflow outlet and an inlet, and the drain pipe is connected to the inlet of the recycling tank. The height of the inlet is not lower than the height of the overflow outlet.

[0015] With the above technical solution, if the inlet is lower than the overflow outlet, when the water level in the recovery tank rises abnormally to above the inlet due to pump failure, control malfunction, or poor drainage, the condensate in the recovery tank will directly backflow into the mist outlet pipe through the inlet, causing water accumulation, dripping, or even water carried by the humid air in the mist outlet pipe. By setting the inlet at a height no lower than the overflow outlet, it is ensured that the water level in the recovery tank can only reach the overflow outlet. Once the water level reaches or exceeds the overflow outlet, it can be discharged immediately and smoothly through the overflow outlet. The inlet is always above the water level or at the critical position, and the liquid level difference required for backflow cannot be formed, thus completely cutting off the backflow path as much as possible in the structure.

[0016] Furthermore, the overflow outlet is connected to an overflow pipe, the diameter of which is not less than the diameter of the drain pipe.

[0017] With the above technical solution, the drain pipe serves as the channel for condensate to enter the recovery water tank, and its water flow capacity determines the maximum inflow. If the overflow pipe diameter is smaller than the drain pipe, the overflow drainage capacity will be less than the inflow capacity, causing the water level in the recovery water tank to rise continuously and eventually overflow, resulting in a risk of leakage. However, if the overflow pipe diameter is not smaller than the drain pipe, it ensures that the drainage capacity is greater than the inflow capacity, allowing excess water to be discharged promptly. This minimizes the risk of condensate overflowing from the recovery water tank or flowing back from the drain pipe into the mist pipe, preventing water accumulation, dripping, or even water carried by humid air in the mist pipe. Furthermore, the larger pipe diameter reduces water flow resistance, making it smoother for condensate to flow into the air conditioner condensate pipe through the overflow pipe. It also reduces the risk of eddies, air blockages, or deposits caused by sudden pipe diameter reduction, especially during long-term operation, thus ensuring the long-term reliability of the overflow function.

[0018] Furthermore, a drain outlet is provided at the lowest point of the mist outlet pipe, and the drain pipe and the drain outlet are connected in an interlocking manner.

[0019] The above technical solution eliminates the need for welding, threaded seals, or complex fasteners in the plug-in connection. During construction, the drain pipe can be quickly inserted into the drain port at the bottom of the mist pipe, making it particularly suitable for air conditioning room environments with limited space or high-altitude operations. This significantly improves installation efficiency, reduces construction difficulty, and facilitates later maintenance.

[0020] Furthermore, the mist outlet pipe includes a mist outlet section with a mist outlet and a closed conveying section for connecting the mist outlet section and the atomization chamber. The mist outlet section is inclined from bottom to top, and the recovery water tank is connected to the lowest point of the mist outlet section.

[0021] Through the above technical solution, the mist outlet section adopts an upward inclined arrangement, so that the condensate formed on the inner wall of the mist outlet pipe flows naturally downward along the pipe wall under the action of gravity, and finally collects at the lowest point of the mist outlet section, that is, the connection with the recovery water tank. This avoids the condensate being carried into the air supply system by the airflow or remaining at the high point of the pipe section, thus achieving directional and efficient collection of condensate.

[0022] Furthermore, the mist outlet section includes a first section extending from its lowest point to the connection between the closed conveying section and the mist outlet section, and a second section extending from its highest point to the connection between the closed conveying section and the mist outlet section. The pipe wall of the first section is a closed structure, and the pipe wall of the second section is provided with the mist outlet.

[0023] Through the above technical solution, the first section, as a closed pipe without openings, is dedicated to guiding the condensate to the lowest point under the action of gravity and discharging it into the recovery water tank, so as to avoid the condensate from contacting the mist outlet or being disturbed by the airflow. The second section is used for the release of humid air, and its mist outlet is only located in the high section, so as to ensure that the discharged air is humid air, rather than a mixed fluid containing condensate, which significantly improves the quality and delivery stability of the humidifying airflow. Attached Figure Description

[0024] The present invention will be further described below with reference to the accompanying drawings:

[0025] Figure 1 This is a schematic diagram of the humidification and drainage recovery device of the air conditioning unit in this utility model;

[0026] Figure 2 This is a schematic diagram of the humidification and drainage recovery device of the air conditioning unit from another perspective in this utility model;

[0027] Figure 3 This is a cross-sectional view of the humidification and drainage recovery device of the air conditioning unit in this utility model;

[0028] In the diagram, 10 is the humidification component; 11 is the atomizing chamber; 12 is the mist outlet pipe; 121 is the enclosed conveying section; 122 is the mist outlet section; 1221 is the first section; 1222 is the second section; 123 is the drain outlet; 124 is the mist outlet; 13 is the air inlet pipe; 14 is the fan; 15 is the ultrasonic atomizing plate; 20 is the air conditioning unit; 30 is the recycled water tank; 301 is the overflow outlet; 302 is the water inlet; 31 is the high water level sensor; 32 is the low water level sensor; 33 is the water pump; 34 is the water outlet pipe; 35 is the drain pipe; and 36 is the overflow pipe. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0030] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the utility model described herein can be implemented in orders other than those illustrated or described herein.

[0031] It should be understood that in the various embodiments of this utility model, the number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this utility model.

[0032] It should be understood that in this invention, "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product or device.

[0033] It should be understood that in this utility model, "multiple" refers to two or more. "And / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, X and / or Y can represent: X alone, X and Y simultaneously, or Y alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "Contains X, Y, and Z", "Contains X, Y, and Z" means that all three X, Y, and Z are contained; "Contains X, Y, or Z" means that one of X, Y, and Z is contained; "Contains X, Y, and / or Z" means that any one, two, or three of X, Y, and Z are contained.

[0034] The technical solution of this utility model will be described in detail below with specific embodiments. The following specific embodiments can be selected to be combined or substituted with each other according to the actual situation, and the same or similar concepts or processes may not be described again in some embodiments.

[0035] like Figures 1 to 3 As shown, this utility model provides a humidification and drainage recovery device for an air conditioning unit, including a humidification component 10 and an air conditioning unit 20. The humidification component 10 includes an atomizing chamber 11 and a mist outlet pipe 12 connected to the atomizing chamber 11. The mist outlet pipe 12 is bent downwards at least partially to avoid external obstacles. The lowest point of the mist outlet pipe 12 is lower than the height of the atomizing chamber 11. The lowest point of the mist outlet pipe 12 is connected to a recovery water tank 30. The recovery water tank 30 is connected to the atomizing chamber 11 through a water outlet pipe 34. The recovery water tank 30 is also equipped with a controller, as well as a water level detector and a water pump 33 electrically connected to the controller. The water level detector is used to obtain the water level of the recovery water tank 30 and convert it into an electrical signal and send it to the controller. The controller controls the operation of the water pump 33 according to the water level detected by the water level detector in the recovery water tank 30.

[0036] A recovery water tank 30 is installed at the lowest point of the mist outlet pipe 12. The condensate is naturally collected and temporarily stored in the recovery water tank 30 by gravity, which avoids the accumulation of water in the pipe and leakage. Since the recovery water tank 30 is lower than the atomizing chamber 11, gravity alone cannot achieve backflow. Therefore, a water pump 33 is added to actively transport the condensate from the lower recovery water tank 30 to the higher atomizing chamber 11, realizing the reuse of pure condensate and achieving good water-saving benefits. At the same time, a water level detector is installed in the recovery water tank 30, which is linked with the controller and the water pump 33. The water pump 33 is only started when the water level reaches the set threshold. This ensures that there is enough water for effective backflow and avoids the water pump 33 from frequently starting and stopping or running dry due to low water level, thus improving the stability and energy efficiency of the system operation.

[0037] It should be noted that external obstacles, such as the beam structure of the building site, require the mist outlet pipe 12 to pass through the beam and be bent downwards to ensure the feasibility of pipeline wiring.

[0038] It should be noted that the humidification component 10 is also provided with an air inlet pipe 13 and a fan 14 located in the air inlet pipe 13. The humidification component 10 uses purified water as the water source. The atomizing chamber 11 is provided with an ultrasonic atomizing plate 15. Under the high-frequency vibration of the ultrasonic atomizing plate 15, the purified water is broken into extremely fine mist particles with a particle size of 1 micrometer to 5 micrometers. These tiny mist particles are rapidly diffused with the airflow introduced by the fan 14 and transported to the external environment through the mist outlet pipe 12.

[0039] It should be noted that the connection point between the outlet pipe 34 and the atomizing chamber 11 is positioned above the high liquid level of the atomizing chamber 11. This ensures that when the water pump 33 stops working, the liquid level in the atomizing chamber 11 remains below the interface of the outlet pipe 34. This physical isolation due to the liquid level difference effectively prevents water from flowing back into the recovery tank 30 through the outlet pipe 34. To further enhance the reliability of the backflow prevention, a one-way valve can optionally be installed in the outlet pipe 34. This one-way valve allows water to flow only from the recovery tank 30 to the atomizing chamber 11, preventing reverse flow. Even in cases of abnormally high liquid levels in the atomizing chamber 11 or system pressure fluctuations, the risk of backflow can be eliminated. These two measures can be used individually or in combination to jointly ensure the safe operation of the condensate recovery system.

[0040] Specifically, the mist outlet pipe 12 includes a mist outlet section 122 with a mist outlet 124 and a closed conveying section 121 for connecting the mist outlet section 122 and the atomizing chamber 11. The mist outlet section 122 is inclined from bottom to top, so that the condensate formed on the inner wall of the mist outlet section 122 flows naturally downward along the pipe wall under the action of gravity. In order to avoid external obstacles, the closed conveying section bends downward. The condensate formed on the inner wall of the closed conveying section 121 flows naturally downward along the pipe wall under the action of gravity. The recovery water tank 30 is connected to the lowest point of the mist outlet section 122. Finally, the condensate is collected at the lowest point of the mist outlet section 122, that is, at the connection with the recovery water tank 30, so as to avoid the condensate being carried into the air supply system or stagnating at the high point of the pipe section, thus realizing the directional and efficient collection of condensate.

[0041] To minimize the impact on mist output, the mist output section 122 includes a first section 1221 extending from its lowest point to the connection between the closed conveying section 121 and the mist output section 122, and a second section 1222 extending from its highest point to the connection between the closed conveying section 121 and the mist output section 122. The pipe wall of the first section 1221 is a closed structure, specifically designed to guide condensate to flow to the lowest point under gravity and discharge it into the recovery water tank 30, minimizing the contact between condensate and mist outlet 124 or the disturbance by airflow. The pipe wall of the second section 1222 is provided with a mist outlet 124, which is used for the release of humid air. Its mist outlet 124 is only located in the high section, ensuring that the discharged air is humid air rather than a mixed fluid containing condensate, significantly improving the quality and delivery stability of the humidifying airflow.

[0042] To avoid resource waste caused by the water pump 33 starting when the recycling tank 30 is empty, the water level detector in this application includes a high water level sensor 31 and a low water level sensor 32, which detect high and low water levels respectively. The low water level sensor 32 ensures that the water pump 33 stops operating when the water level in the tank is below the safety lower limit, thus preventing damage from dry running as much as possible. The high water level sensor 31 triggers the water pump 33 to start when the water level reaches the effective recycling capacity, ensuring that there is sufficient condensate water for each pumping, thereby improving the recycling efficiency. This ensures that the water pump 33 only starts when the water level rises to the high level and stops when the water level drops to the low level, thus preventing frequent start-stop operations caused by small fluctuations in water level.

[0043] It should be noted that in this embodiment, the high water level sensor 31 is set at the 4cm water level of the recovery water tank 30. When the high water level sensor 31 detects that the water level has reached 4cm, the water pump 33 starts to run and pumps the condensate into the atomizing chamber 11. The low water level sensor 32 is set at the 2cm water level of the recovery water tank 30. When the water level is below 2cm, the water pump 33 stops running.

[0044] Because the water pump 33 may malfunction after prolonged use, resulting in the inability to timely recover condensate from the water tank 30, or when there is excessive condensate in the mist outlet pipe 12, the water level in the water tank 30 may rise rapidly and overflow. Therefore, in this application, the air conditioning unit 20 includes a condensate drain pipe for discharging condensate, and the water tank 30 is also equipped with an overflow outlet 301 located above the high water level sensor 31. The overflow outlet 301 is connected to the condensate drain pipe of the air conditioning unit 20 via an overflow pipe 36. When the water level in the water tank 30 rises abnormally and exceeds the position of the high water level sensor 31, the excess condensate can still be automatically discharged into the condensate drain pipe of the air conditioning unit 20 through the overflow outlet 301, eliminating the need for a separate drainage system and minimizing the risk of water tank overflow causing equipment immersion or indoor water leakage.

[0045] Furthermore, the recycled water tank 30 is also equipped with an alarm, which is connected to the controller. When the water level in the recycled water tank 30 is abnormal, such as when the high water level sensor 31 is continuously triggered, the controller can determine that the water pump 33 is malfunctioning, the pipeline is blocked, or the control system is failing, and immediately trigger the alarm to remind maintenance personnel to intervene in a timely manner, so as to avoid condensate overflow causing equipment damage or indoor pollution as much as possible.

[0046] It should be noted that the alarm can adopt an audible and visual alarm structure, or it can integrate a communication module to realize remote alarm. It can emit sound and light signals on site to remind maintenance personnel to deal with the problem in a timely manner, or push fault information to remote scenarios such as the central control room, mobile terminals or maintenance platforms in real time to achieve rapid response in unattended scenarios.

[0047] The mist outlet pipe 12 and the recovery water tank 30 are connected by a drain pipe 35. If the drain pipe 35 is directly connected to the recovery water tank 30 with a large diameter, some humid air may enter the recovery water tank 30 directly through the drain pipe 35 without going through the air supply system, resulting in a loss of humidification capacity and airflow turbulence. Therefore, in this application, the diameter of the drain pipe 35 is smaller than the diameter of the mist outlet pipe 12, so that the humid air flows preferentially along the mist outlet pipe 12, and only the condensate flows into the recovery water tank 30 by gravity through the drain pipe 35, thereby ensuring the humidification effect and the stability of the airflow organization.

[0048] The drain pipe 35 is connected to the inlet 302 of the recovery water tank 30. If the inlet 302 is lower than the overflow 301, when the water level in the recovery water tank 30 rises abnormally to above the inlet 302 due to pump 33 failure, control failure, or poor drainage, the condensate in the recovery water tank 30 will directly backflow into the mist outlet pipe 12 through the inlet 302, causing water accumulation, leakage, or even water carried by the humid air in the mist outlet pipe 12. Therefore, in this application, the height of the inlet 302 is not lower than the height of the overflow 301, so as to ensure that the water level in the recovery water tank 30 can only reach the overflow 301. Once the water level reaches or exceeds the overflow 301, it can be discharged immediately and smoothly through the overflow 301. The inlet 302 is always above the water level or at the critical position, so that the liquid level difference required for backflow cannot be formed, thereby cutting off the backflow path as thoroughly as possible in the structure.

[0049] The drain pipe 35 is the channel through which condensate enters the recovery water tank 30, and its water flow capacity determines the maximum inflow. If the diameter of the overflow pipe 36 is smaller than that of the drain pipe 35, the overflow drainage capacity will be less than the inflow capacity, causing the water level in the recovery water tank 30 to rise continuously and eventually overflow or flow back from the drain pipe 35 to the mist pipe 12, resulting in water accumulation, dripping, or even water carried by humid air in the mist pipe 12, thus creating a risk of leakage. Therefore, in this application, the diameter of the overflow pipe 36 is not less than that of the drain pipe 35, which can ensure that the drainage capacity is greater than the water inlet capacity, so that excess water can be discharged in time, and avoid condensate overflowing from the recovery water tank 30 or flowing back from the drain pipe 35 to the mist pipe 12, which could lead to water accumulation, dripping, or even water carried by the humid air in the mist pipe 12. Moreover, the larger pipe diameter reduces the water flow resistance, making the condensate flow more smoothly into the air conditioner condensate pipe through the overflow pipe 36, and less likely to cause eddies, air blockage, or sedimentation due to sudden narrowing of the pipe diameter. In particular, it can reduce the risk of blockage caused by the accumulation of impurities during long-term operation, and ensure the long-term reliability of the overflow function.

[0050] The lowest point of the mist outlet pipe 12 is provided with a drain outlet 123, and the drain pipe 35 and the drain outlet 123 are connected by a plug. The plug connection does not require welding, threaded seals or complex fasteners. During construction, the drain pipe 35 can be quickly inserted into the drain outlet 123 at the bottom of the mist outlet pipe 12. It is especially suitable for air conditioning room environments with limited space or high-altitude operations, which significantly improves installation efficiency, reduces construction difficulty, and facilitates later maintenance.

[0051] Understandably, in other embodiments, the drain pipe and drain outlet can also be threaded connections, which provide a better seal and reduce the risk of leakage.

[0052] In addition to the preferred embodiments described above, there are other embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection claimed by this utility model.

Claims

1. A humidification and drainage recovery device for an air conditioning unit, comprising a humidification component and an air conditioning unit, characterized in that, The humidification assembly includes an atomizing chamber and a mist outlet pipe communicating with the atomizing chamber. The mist outlet pipe is at least partially bent downwards to avoid external obstacles. The lowest point of the mist outlet pipe is lower than the height of the atomizing chamber. The lowest point of the mist outlet pipe is connected to a recovery water tank. The recovery water tank is connected to the atomizing chamber through a water outlet pipe. The recovery water tank is also equipped with a controller, as well as a water level detector and a water pump, which are electrically connected to the controller. The water level detector is used to obtain the water level in the recovery water tank and convert it into an electrical signal, which is then transmitted to the controller. The controller controls the operation of the water pump based on the water level detected by the water level detector in the recovery water tank.

2. The humidification and drainage recovery device for air conditioning units according to claim 1, characterized in that, The water level detector includes a high water level sensor and a low water level sensor, which detect high water levels and low water levels respectively.

3. The humidification and drainage recovery device for air conditioning units according to claim 2, characterized in that, The air conditioning unit includes a condensate pipe for draining condensate, and the recovery water tank is also provided with an overflow outlet, which is located above the high water level sensor. The overflow outlet is connected to the condensate pipe of the air conditioning unit through the overflow pipe.

4. The humidification and drainage recovery device for air conditioning units according to claim 2, characterized in that, The recycled water tank is also equipped with an alarm, which is connected to the controller.

5. The humidification and drainage recovery device for air conditioning units according to claim 1, characterized in that, The mist outlet pipe and the water recovery tank are connected by a drain pipe, the diameter of which is smaller than that of the mist outlet pipe.

6. The humidification and drainage recovery device for air conditioning units according to claim 5, characterized in that, The recycling tank is also equipped with an overflow outlet and an inlet. The drain pipe is connected to the inlet of the recycling tank, and the height of the inlet is not lower than the height of the overflow outlet.

7. The humidification and drainage recovery device for air conditioning units according to claim 6, characterized in that, The overflow outlet is connected to an overflow pipe, and the diameter of the overflow pipe is not less than the diameter of the drain pipe.

8. The humidification and drainage recovery device for air conditioning units according to claim 5, characterized in that, The lowest point of the mist outlet pipe is provided with a drain outlet, and the drain pipe and the drain outlet are connected together.

9. The humidification and drainage recovery device for air conditioning units according to claim 1, characterized in that, The mist outlet pipe includes a mist outlet section with a mist outlet and a closed conveying section for connecting the mist outlet section and the atomizing chamber. The mist outlet section is inclined from bottom to top, and the recovery water tank is connected to the lowest point of the mist outlet section.

10. The humidification and drainage recovery device for an air conditioning unit according to claim 9, characterized in that, The mist outlet section includes a first section extending from its lowest point to the connection between the closed conveying section and the mist outlet section, and a second section extending from its highest point to the connection between the closed conveying section and the mist outlet section. The pipe wall of the first section is a closed structure, and the pipe wall of the second section is provided with the mist outlet.

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