Humidifying device and humidifying system

By connecting the hot water circulation box of the heating equipment in the data center, the cold water tank and the heat exchange coil are used to increase the humidity by using high-temperature liquid heat exchange, solving the problem of excessive humidity in the data center, and achieving efficient humidification and cost reduction effects.

CN223083014UActive Publication Date: 2025-07-11BEIJING 21VIANET DATA CENT
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Patent Information

Application Number
CN202422050844.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2025-07-11
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

In cold seasons or dry external environments, the internal humidity of the data center computer room is too low, resulting in the accumulation of static charges, which may cause server failures, and existing solutions increase the cost of the data center.

Method used

By connecting the hot water circulation box of the data center heating equipment with the cold water tank and the heat exchange coil of the humidification device, the high-temperature liquid is used to exchange heat with the low-temperature liquid in the cold water tank, the temperature and evaporation speed of the liquid in the cold water tank are increased, and the spray device sprays liquid to increase humidity.

Benefits of technology

It effectively improves the humidity of the data center, reduces costs, improves humidification efficiency, and optimizes resource use through temperature sensors and electronic control boxes, enhancing maintenance convenience and timeliness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a humidification device and a humidification system, the humidification device is used for being communicated with a hot water circulation tank of heating equipment of a data center, the hot water circulation tank comprises a first water outlet and a water return port, the humidification device comprises a cold water tank, a heat exchange coil pipe and a spraying device, the heat exchange coil pipe is arranged in the cold water tank, the heat exchange coil comprises a water inlet and a second water outlet, the first water outlet is communicated with the water inlet, and the second water outlet is communicated with the water return port. And at least part of the heat exchange coil pipe is immersed in the liquid in the cold water tank. The spraying device is installed at a water outlet of the cold water tank and used for spraying out liquid in the cold water tank. By adopting the humidifying device provided by the utility model, the temperature of the liquid in the cold water tank can be increased by enabling the hot water in the hot water circulating tank to enter the heat exchange coil, so that the evaporation speed of the liquid sprayed by the spraying device can be effectively increased, and the humidity requirement of the data center can be met.
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Description

Technical Field

[0001] The utility model relates to the technical field of data centers, and particularly relates to a humidifying device and a humidifying system. Background Art

[0002] At present, data centers are widely used. In cold seasons or when the external environment is dry, the humidity inside the data center computer room is likely to be too low. When the relative humidity inside the data center computer room is too low, it may cause the static charges in the computer room to accumulate continuously, resulting in failures of electronic devices such as servers. To meet the humidity requirements inside the above-mentioned data center computer room, the current conventional solutions are mopping the floor, adding a humidifier or increasing the configuration parameters of the humidifier, etc., which will increase the cost of the data center.

[0003] Therefore, how to provide an effective and low-cost data center humidifying solution has become a difficult problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0004] The utility model provides a humidifying device and a humidifying system for providing an effective and low-cost data center humidifying solution.

[0005] In the first aspect, the utility model provides a humidifying device for connecting to the hot water circulation tank of the heating equipment in the data center. The hot water circulation tank includes a first water outlet and a water return port. The humidifying device includes a cold water tank, a heat exchange coil, and a spraying device. The heat exchange coil is arranged inside the cold water tank. Among them, the heat exchange coil includes a water inlet and a second water outlet. The first water outlet is communicated with the water inlet, and the second water outlet is communicated with the water return port; at least part of the heat exchange coil is immersed in the liquid inside the cold water tank. The spraying device is installed at the water outlet of the cold water tank for spraying the liquid inside the cold water tank. By using the humidifying device provided by the utility model, by connecting the heat exchange coil to the hot water circulation tank of the heating equipment in the data center computer room, the high-temperature liquid in the hot water circulation tank can be continuously circulated between the hot water circulation tank and the heat exchange coil, so that the high-temperature liquid flowing into the heat exchange coil exchanges heat with the low-temperature liquid in the cold water tank through the tube wall of the heat exchange coil, so as to increase the temperature of the low-temperature liquid in the cold water tank. In this way, the evaporation speed of the liquid sprayed by the spraying device can be effectively increased, thus meeting the humidity requirements of the data center.

[0006] In a possible implementation manner of the utility model, the humidifying device further includes a circulation pump and a solenoid valve. The solenoid valve is connected between the first water outlet and the water inlet to control the on-off between the hot water circulation tank and the heat exchange coil. And the circulation pump is connected between the second water outlet and the water return port, which can improve the circulation speed of the high-temperature liquid, thereby improving the heat exchange efficiency of the heat exchange coil.

[0007] In a possible implementation manner of the present utility model, the humidifying device further includes a temperature sensor and an electric control box. The temperature sensor is located inside the cold water tank and is used to detect the temperature of the liquid in the cold water tank. When the temperature detected by the temperature sensor is lower than the set threshold, the electric control box controls the solenoid valve to open and controls the circulation pump to operate. When the temperature detected by the temperature sensor is greater than or equal to the set threshold, the electric control box controls the circulation pump to stop operating and controls the solenoid valve to close. By using the humidifying device provided by the present utility model, the temperature of the liquid in the cold water tank is detected by the temperature sensor and fed back to the electric control box, so that when the temperature of the liquid in the cold water tank is not at the set threshold, the circulation pump and the solenoid valve are controlled to perform corresponding actions, which can improve the humidifying efficiency of the humidifying device while reducing waste of resources.

[0008] In a possible implementation manner of the present utility model, the humidifying device further includes a first stop valve and a second stop valve. The first stop valve is connected between the first water outlet and the water inlet. The second stop valve is connected between the second water outlet and the water return port. In this way, when a heating device in the data center computer room fails, it is only necessary to close the first stop valve and the second stop valve to achieve an open circuit between the hot water circulation tank and the heat exchange coil, thereby improving the maintenance convenience of the heating device.

[0009] In a possible implementation manner of the present utility model, the humidifying device further includes a first pressure gauge and a second pressure gauge. The first pressure gauge is connected between the first stop valve and the water inlet. The second pressure gauge is connected between the second water outlet and the second stop valve. By using the humidifying device provided by the present utility model, by comparing the pressure value data of the two pressure gauges, it can be determined whether the water flow of each pipeline and each valve is normal. In this way, when an abnormality occurs in the pipeline or the valve, the maintenance timeliness of the humidifying device can be improved, thereby reducing the situation where the flow rate of the high-temperature liquid and the humidifying efficiency of the device are reduced due to an abnormality in the pipeline or the valve.

[0010] In a possible implementation manner of the present utility model, the humidifying device further includes a first thermometer and a second thermometer. The first thermometer is connected between the first water outlet and the water inlet; the second thermometer is connected between the second water outlet and the water return port. In this way, by comparing the detected values of the first thermometer and the second thermometer, it can be determined whether the heat exchange coil fails, so as to improve the maintenance timeliness of the heat exchange coil when an abnormality occurs in the heat exchange coil.

[0011] In a possible implementation manner of the present utility model, the humidifying device further includes a filter, and the filter is connected between the first water outlet and the water inlet. This can be used to filter out impurities in the high-temperature liquid flowing into the heat exchange coil, thereby improving the cleanliness of the high-temperature liquid entering the heat exchange coil, which is beneficial to improving the service life of the humidifying device.

[0012] In a possible implementation manner of the present utility model, the humidifying device further includes a first corrugated pipe and a second corrugated pipe, and the first corrugated pipe and the second corrugated pipe are located outside the cold water tank. The first corrugated pipe is connected between the filter and the water inlet to improve the connection convenience between the filter and the water inlet. And the second corrugated pipe is connected between the water return port and the second water outlet to improve the connection convenience between the water return port and the second water outlet. In addition, when the pressure inside the device changes abnormally, since the corrugated pipe has elasticity, the elastic deformation of the corrugated pipe can effectively reduce the adverse effects brought by the pressure change inside the device.

[0013] In a second aspect, the present utility model further provides a humidifying system, and the humidifying system includes a heating device and the humidifying device of the first aspect. By using the humidifying system provided by the present utility model, the heat exchange coil is communicated with the hot water circulation tank of the heating device in the data center computer room, so that the high-temperature liquid in the hot water circulation tank circulates continuously between the hot water circulation tank and the heat exchange coil, so that the high-temperature liquid flowing into the heat exchange coil exchanges heat with the low-temperature liquid in the cold water tank through the tube wall of the heat exchange coil, so that the temperature of the low-temperature liquid in the cold water tank rises, so that the evaporation speed of the liquid sprayed by the spraying device can be effectively increased, thereby meeting the humidity requirements of the data center.

[0014] In a possible implementation manner of the present utility model, the humidifying system includes a wet film, and the spraying device is used to spray the liquid in the cold water tank onto the wet film. And the wet film is used to evaporate the absorbed liquid. By using the humidifying system provided by the present utility model, since the liquid sprayed onto the wet film is a high-temperature liquid, the evaporation speed of the body fluid on the wet film can be further increased, thereby improving the humidifying efficiency. Brief Description of the Drawings

[0015] Figure 1 It is a schematic structural diagram of a humidifying device provided by the present utility model.

[0016] Reference Numerals: 11 - First water outlet; 12 - Water return port; 2 - Cold water tank; 3 - Spraying device; 4 - Heat exchange coil; 41 - Water inlet; 42 - Second water outlet; 5 - Circulation pump; 6 - Solenoid valve; 7 - Temperature sensor; 8 - First stop valve; 9 - Second stop valve; 010 - First pressure gauge; 011 - Second pressure gauge; 012 - First thermometer; 013 - Second thermometer; 014 - Filter; 015 - First corrugated pipe; 016 - Second corrugated pipe. Detailed Description of the Embodiments

[0017] In order to make the objectives, technical solutions, and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with the accompanying drawings. However, the exemplary embodiments can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Identical reference numerals in the figures denote identical or similar structures, and thus repeated descriptions thereof will be omitted. The words expressing positions and directions described in the embodiments of the present utility model are illustrative with reference to the drawings, but can be changed according to needs, and all such changes are included within the protection scope of the present utility model. The drawings in the embodiments of the present utility model are only used to illustrate the relative positional relationship and do not represent the actual scale.

[0018] It should be noted that specific details are set forth in the following description to facilitate an understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0019] Currently, data centers are widely used. In cold seasons or when the external environment is dry, the humidity inside the data center computer room is likely to be too low. When the relative humidity inside the data center computer room is too low, it may cause the electrostatic charges in the computer room to accumulate continuously, resulting in malfunctions of electronic devices such as servers. To meet the humidity requirements inside the above-mentioned data center computer room, the current conventional solutions are mopping the floor, adding a humidifier, or increasing the configuration parameters of the humidifier, etc., which will increase the cost of the data center.

[0020] In view of this, the humidifying device provided by the present utility model exchanges heat between the high-temperature liquid in the hot water circulation tank of the heating equipment in the data center and the liquid in the cold water tank of the humidifier to increase the temperature of the liquid in the cold water tank, which can effectively improve the evaporation efficiency of the liquid in the cold water tank, thereby effectively meeting the humidity requirements of the data center.

[0021] Reference Figure 1 , Figure 1 is a schematic structural diagram of a humidifying device provided by the present utility model. The humidifier device is used to connect to the hot water circulation tank of the heating equipment in the data center. The hot water circulation tank includes a first water outlet 11 and a water return port 12. The humidifying device includes a cold water tank 2, a spraying device 3, and a heat exchange coil 4. The heat exchange coil 4 is disposed inside the cold water tank 2.

[0022] The heat exchange coil 4 includes a water inlet 41 and a second water outlet 42. The first water outlet 11 is communicated with the water inlet 41, and the second water outlet 42 is communicated with the water return port 12, so as to enable the high-temperature liquid in the hot water circulation tank to enter the pipeline of the heat exchange coil 4 through the water inlet 41 from the first water outlet 11, and then flow back to the hot water circulation tank through the second water outlet 42 of the heat exchange coil 4 via the water return port 12. And at least part of the heat exchange coil 4 is immersed in the liquid in the cold water tank 2, so that during the process of the high-temperature liquid flowing through the heat exchange coil 4, the high-temperature liquid can exchange heat with the low-temperature liquid in the cold water tank 2, that is, the high-temperature liquid in the heat exchange coil 4 dissipates heat to the low-temperature liquid in the cold water tank 2 through the tube wall of the heat exchange coil 4, thereby increasing the temperature of the low-temperature liquid in the cold water tank 2.

[0023] In addition, the spraying device 3 is installed at the water outlet of the cold water tank 2 and is used to spray the liquid in the cold water tank 2, so as to maintain the humidity in the data center computer room. By using the humidifying device provided by the present utility model, by connecting the heat exchange coil 4 with the hot water circulation tank of the heating equipment in the data center computer room, the continuous circulation of the high-temperature liquid in the hot water circulation tank between the hot water circulation tank and the heat exchange coil 4 is realized, so that the high-temperature liquid flowing into the heat exchange coil 4 exchanges heat with the low-temperature liquid in the cold water tank 2 through the tube wall of the heat exchange coil 4, so as to increase the temperature of the low-temperature liquid in the cold water tank 2, so that the evaporation rate of the liquid sprayed by the spraying device 3 can be effectively improved, thereby effectively meeting the humidity requirements of the data center. In addition, since the cold water tank 2 of this solution is directly connected with the hot water circulation tank of the heating equipment of the data center through the heat exchange coil 4 to increase the temperature of the liquid in the cold water tank 2, thereby improving the humidifying efficiency, therefore, compared with the current solution, the cost of the humidifying device provided by the present utility model is lower.

[0024] Continue to refer to Figure 1 , the humidifying device further includes a circulation pump 5 and a solenoid valve 6. The solenoid valve 6 is connected between the first water outlet 11 and the water inlet 41 to control the on-off between the hot water circulation tank and the heat exchange coil 4, and the circulation pump 5 is connected between the second water outlet 42 and the water return port 12, so that the circulation speed of the high-temperature liquid can be increased, thereby improving the heat exchange efficiency of the heat exchange coil 4.

[0025] It is worth mentioning that the humidifying device further includes a temperature sensor 7 and an electric control box. The temperature sensor 7 is located inside the cold water tank 2 and is used to detect the temperature of the liquid in the cold water tank 2.

[0026] When the temperature detected by the temperature sensor 7 is lower than the set threshold, the electric control box will control the solenoid valve 6 to open and control the circulation pump 5 to work, so that the high-temperature liquid can enter the heat exchange coil 4, thereby realizing the heat exchange of the high-temperature liquid in the heat exchange coil 4 to the low-temperature liquid in the cold water tank 2.

[0027] When the temperature detected by the temperature sensor 7 is greater than or equal to the set threshold value, first, the electric control box controls the circulation pump 5 to stop working to reduce the liquid flow rate and pressure inside the pipeline between the hot water circulation tank and the heat exchange coil 4. Then, it controls the solenoid valve 6 to close, thereby cutting off the passage between the hot water circulation tank and the heat exchange coil 4, so as to avoid damage to the device due to abnormal changes in the internal pressure of the pipeline.

[0028] In addition, by using the humidifying device provided by the present utility model, the liquid temperature of the cold water tank 2 is detected by the temperature sensor 7 and fed back to the electric control box. When the liquid temperature in the cold water tank 2 is not at the set threshold value, the circulation pump 5 and the solenoid valve 6 are controlled to perform corresponding actions. In this way, while improving the humidifying efficiency of the humidifying device, the waste of resources can be reduced.

[0029] In a specific embodiment, as Figure 1 shown, the humidifying device further includes a first stop valve 8 and a second stop valve 9. The first stop valve 8 is connected between the first water outlet 11 and the water inlet 41 to control the on-off between the first water outlet 11 and the water inlet 41. The second stop valve 9 is connected between the second water outlet 42 and the water return port 12 to control the on-off between the second water outlet 42 and the water return port 12. In this way, when a heating device in the data center computer room fails, only by closing the first stop valve 8 and the second stop valve 9, the open circuit between the hot water circulation tank and the heat exchange coil 4 can be achieved, improving the maintenance convenience of the heating device.

[0030] It should be noted that when the first stop valve 8 and the second stop valve 9 are closed, the cold water tank 2 can continue to humidify the inside of the data center through the spraying device 3. And because the liquid temperature in the cold water tank 2 decreases slowly, the humidifying efficiency of the humidifying device will not decrease significantly in a short time.

[0031] It is worth mentioning that, continuing to refer to Figure 1 , the humidifying device further includes a first pressure gauge 010 and a second pressure gauge 011. The first pressure gauge 010 is connected between the first stop valve 8 and the water inlet 41, and the second pressure gauge 011 is connected between the second water outlet 42 and the second stop valve 9. For the humidifying device provided by the present utility model, the first pressure gauge 010 is used to detect the pressure value between the first stop valve 8 and the water inlet 41, and the second pressure gauge 011 is used to detect the pressure value between the second water outlet 42 and the second stop valve 9. By using the humidifying device provided by the present utility model, by observing and recording each pressure value data and comparing the pressure value data of the two pressure gauges, it is possible to judge whether the water flow rate of each pipeline and each valve is normal. In this way, when an abnormality occurs in the pipeline or valve, the maintenance timeliness of the humidifying device can be improved, thereby reducing the situation where the flow rate of high-temperature liquid and the humidifying efficiency of the device decrease due to abnormalities in the pipeline or valve.

[0032] It is worth mentioning that when there is a large difference between the value detected by the first pressure gauge 010 and the value detected by the second pressure gauge 011, it is determined that there is a fault in the pipeline or valve of the humidifying device.

[0033] In addition, the humidifying device further includes a first thermometer 012 and a second thermometer 013. The first thermometer 012 is connected between the first water outlet 11 and the water inlet 41 to detect the temperature of the liquid flowing into the heat exchange coil 4, so as to avoid the situation that the heat exchange efficiency of the heat exchange coil 4 is lower than the normal value due to the too low temperature of the above-mentioned inflowing liquid. And the second thermometer 013 is connected between the second water outlet 42 and the water return port 12 to detect the temperature of the liquid flowing out of the heat exchange coil 4. By comparing the values detected by the first thermometer 012 and the second thermometer 013, it can be used to determine whether the heat exchange coil 4 fails, so as to improve the timeliness of repairing the heat exchange coil 4 when the heat exchange coil 4 is abnormal.

[0034] It should be noted that when the inspection value of the second thermometer 013 is significantly greater than the inspection value of the first thermometer 012, it indicates that the heat exchange of the heat exchange coil 4 is stable. In addition, the difference between the second thermometer 013 and the first thermometer 012 needs to be set according to the actual environment where the humidifying device is located, and the present invention does not limit the specific difference. It is worth mentioning that when there is no obvious difference between the detection value of the first thermometer 012 and the detection value of the second thermometer 013, the heat exchange coil 4 fails.

[0035] It is worth mentioning that, as Figure 1 shown, the humidifying device further includes a filter 014. The filter 014 is connected between the first water outlet 11 and the water inlet 41. This can be used to filter out impurities in the high-temperature liquid flowing into the heat exchange coil 4, thereby improving the cleanliness of the high-temperature liquid entering the heat exchange coil 4, which is beneficial to improving the service life of the humidifying device. In addition, a filter 014 can also be connected between the second water outlet 42 and the water return port 12 to improve the cleanliness of the liquid flowing into the hot water circulation tank. And the filter 014 can be a Y-shaped filter 014 to increase the adaptability of the filter 014 and reduce the cost of the humidifying device.

[0036] It should be noted that continuing to refer to Figure 1, both the water inlet 41 and the second water outlet 42 of the heat exchange coil 4 pass through the side wall of the cold water tank 2 and are located outside the cold water tank 2. A first galvanized steel pipe can be arranged between the first water outlet 11 and the water inlet 41 to achieve the connection between the two. One end of the first galvanized pipe far from the first water outlet 11 (i.e., the water outlet end of the galvanized pipe) is connected to the filter 014. A second galvanized steel pipe can be arranged between the second water outlet 42 and the water return port 12 to achieve the connection between the two. And the outer side wall of the galvanized pipe is wrapped with a heat insulation layer. By arranging the galvanized steel pipe with a heat insulation layer in the present utility model, the service life of the pipeline can be extended while reducing the heat loss of the high-temperature liquid during the process of flowing into the heat exchange coil 4 through the galvanized steel pipe.

[0037] In addition, the first corrugated pipe 015 of the humidifying device is connected between the filter 014 and the water inlet 41, and the second corrugated pipe 016 is connected between the water return port 12 and the second water outlet 42. It can be understood that one end of the first corrugated pipe 015 can be directly connected to the first galvanized steel pipe or connected to the first galvanized steel pipe through the filter 014, and the other end is connected to the water inlet 41 of the heat exchange coil 4. One end of the second corrugated pipe 016 is connected to the second galvanized steel pipe, and the other end is connected to the second water outlet 42 of the heat exchange coil 4. Since there are differences in the pipe diameters of the galvanized steel pipe and the heat exchange coil 4, the humidifying device provided by the present utility model is provided with corrugated pipes to effectively improve the connection convenience between pipelines. And when the pressure inside the device changes abnormally, due to the elasticity of the corrugated pipe, the adverse effects brought by the pressure change inside the device can be effectively reduced through the elastic deformation of the corrugated pipe.

[0038] When the above humidifying device is applied to a humidifying system, the humidifying system further includes a wet film, and the spraying device 3 of the humidifying device is used to spray the liquid in the cold water tank 2 onto the wet film. When the hot air in the data center computer room passes through the wet film, the liquid on the wet film fully absorbs the heat of the air and vaporizes and evaporates, so as to achieve the purpose of humidification. In addition, by using the humidifying system provided by the present utility model, since the liquid sprayed onto the wet film is a high-temperature liquid, the evaporation speed of the body fluid on the wet film can be further accelerated, thereby improving the humidifying efficiency.

[0039] In summary, by using the humidifying device provided by the present utility model, the heat exchange coil 4 is connected to the hot water circulation tank of the heating equipment in the data center computer room to realize the continuous circulation of the high-temperature liquid in the hot water circulation tank between the hot water circulation tank and the heat exchange coil 4, so that the high-temperature liquid flowing into the heat exchange coil 4 exchanges heat with the low-temperature liquid in the cold water tank 2 through the pipe wall of the heat exchange coil 4, so that the temperature of the low-temperature liquid in the cold water tank 2 rises. In this way, the evaporation speed of the liquid sprayed out by the spraying device 3 can be effectively increased, so as to effectively meet the humidity requirements of the data center.

[0040] Obviously, those skilled in the art can make various modifications and variations to the present utility model without departing from the spirit and scope of the present utility model. Thus, if these modifications and variations of the present utility model fall within the scope of the claims of the present utility model and their equivalent technologies, the present utility model also intends to include these modifications and variations therein.

Claims

1. A humidifying device for connecting to a hot water circulation tank of a heating device in a data center, the hot water circulation tank including a first water outlet and a water return port, characterized in that, The humidifying device includes a cold water tank, a heat exchange coil, and a spraying device, where: The heat exchange coil includes a water inlet and a second water outlet. The first water outlet is communicated with the water inlet, and the second water outlet is communicated with the water return port. The heat exchange coil is arranged inside the cold water tank, and at least part of the heat exchange coil is immersed in the liquid inside the cold water tank. The spraying device is installed at the water outlet of the cold water tank and is used for spraying the liquid inside the cold water tank.

2. The humidifying device according to claim 1, wherein The humidifying device further includes a circulation pump and a solenoid valve. The circulation pump is connected between the second water outlet and the water return port. The solenoid valve is connected between the first water outlet and the water inlet.

3. The humidifying device according to claim 2, characterized in that, The humidifying device further includes a temperature sensor and an electric control box. The temperature sensor is located inside the cold water tank and is used for detecting the temperature of the liquid inside the cold water tank. When the temperature detected by the temperature sensor is lower than the set threshold value, the electric control box controls the solenoid valve to open and controls the circulation pump to operate. When the temperature detected by the temperature sensor is greater than or equal to the set threshold value, the electric control box controls the circulation pump to stop operating and controls the solenoid valve to close.

4. The humidifying device according to claim 1, characterized in that, The humidifying device further includes a first stop valve and a second stop valve. The first stop valve is connected between the first water outlet and the water inlet. The second stop valve is connected between the second water outlet and the water return port.

5. The humidifying device according to claim 4, characterized in that, The humidifying device further includes a first pressure gauge and a second pressure gauge. The first pressure gauge is connected between the first stop valve and the water inlet. The second pressure gauge is connected between the second water outlet and the second stop valve.

6. The humidifying device according to claim 1, characterized in that, The humidifying device further includes a first thermometer and a second thermometer. The first thermometer is connected between the first water outlet and the water inlet. The second thermometer is connected between the second water outlet and the water return port.

7. The humidifying device according to claim 1, characterized in that The humidifying device further includes a filter, and the filter is connected between the first water outlet and the water inlet.

8. The humidifying device according to claim 7, characterized in that, The humidifying device further includes a first bellows and a second bellows, and the first bellows and the second bellows are located outside the cold water tank. The first bellows is connected between the filter and the water inlet. The second bellows is connected between the water return port and the second water outlet.

9. A humidification system, characterized in that, It includes a heating device and the humidifying device according to any one of claims 1-8.

10. The humidification system according to claim 9, wherein, The humidifying system further includes a wet film, and the spraying device is used for spraying the liquid inside the cold water tank onto the wet film. The wet film is used for evaporating the absorbed liquid.