A multi-channel partition-regulated floor type wet membrane humidifying device

Abstract

The present application relates to the HVAC technical field, specifically to a multi-channel partition control floor type wet membrane humidifying equipment, comprising a shell, a circulating water unit, a multi-channel wet membrane unit, a supply air unit, a return air unit and a partition control unit are arranged in the shell; the multi-channel wet membrane unit comprises at least two wet membrane assemblies arranged side by side, the wet membrane assembly comprises a fixed shell, the fixed shell is S-shaped, and the inside of the return air fixed shell is filled with a wet membrane with a honeycomb microstructure. The present application prolongs the contact path of dry air and wet membrane by setting the "S" type multi-channel flow channel, and the humidifying efficiency of the humidifying equipment is significantly improved compared with the traditional one-way wet membrane equipment. At the same time, the local dry environment in the room is efficiently and accurately humidified by the partition control mechanism.

Description

Technical Field

[0001] This invention relates to the field of heating, ventilation and air conditioning technology, specifically to a floor-standing wet film humidification device with multi-channel zone control. Background Technology

[0002] In the field of building indoor thermal and humidity control, winter heating can cause air dryness. Currently, mainstream building humidification modes can be divided into general humidification and decentralized individual humidification. The former, based on ensuring uniform humidity throughout the entire space, is prone to energy and mass waste, while the latter relies on small humidifiers, which have a limited humidification range and are difficult to achieve uniform humidity diffusion. Based on the actual humidity requirements of buildings, it is only necessary to adjust the humidity environment of local spaces such as activity areas, work areas, and rest areas. Therefore, carrying out refined local humidification has become a key approach to effectively improve the indoor humidity environment of buildings.

[0003] Evaporative humidification, as a mainstream isenthalpic humidification method, is widely used due to its advantages such as clean humidification, long service life, and low operating costs. However, most existing evaporative humidification devices adopt a unidirectional air-wet film contact path, resulting in a short flow path for dry air through the wet film and a limited effective contact area, which leads to a bottleneck in improving humidification efficiency under the same equipment volume. In addition, such devices can only perform overall humidification and adjustment of the entire indoor space, and cannot provide differentiated and precise humidity compensation for localized dry areas caused by uneven distribution of indoor heat sources and airflow organization. These technical limitations make it difficult for existing equipment to meet the needs of creating localized non-uniform humidity environments, and there is an urgent need to propose a new type of evaporative humidification device that can achieve efficient and directional humidification of localized spaces in buildings. Summary of the Invention

[0004] To address the problems in existing technologies, such as the short flow path of dry air through the wet membrane and limited effective contact area due to the unidirectional air-wet membrane contact path of traditional wet membrane equipment, this invention provides a floor-standing wet membrane humidification device with multi-channel zone control.

[0005] This invention is achieved through the following technical solution: A multi-channel zone-controlled floor-standing wet film humidification device includes a shell, and inside the shell are a circulating water unit, a multi-channel wet film unit, an air supply unit, a return air unit and a zone control unit; The multi-channel wet membrane unit includes at least two wet membrane assemblies arranged side by side. Each wet membrane assembly includes a fixed housing, which is S-shaped. The interior of the return air fixed housing is filled with a wet membrane having a honeycomb microstructure. The fixed housing includes an air inlet at the upper S-shaped part of the fixed housing, which is connected to the return air unit, and an air outlet at the lower part, which is connected to the supply air unit. The S-shaped top of the fixed housing is provided with a water inlet, and the circulating water unit has multiple sets of water outlets, each set of water outlets corresponding to a wet film component; each set of water outlets has multiple water outlets, and each water outlet is provided with a corresponding flow regulating valve. The air supply unit includes a blower, which is located at the air outlet. The return air unit includes a return air fan, which is located at the air inlet; The outer casing is equipped with air supply grilles and return air grilles at positions corresponding to the air inlet and return air outlet. The angles of the air supply grilles and return air grilles are controlled by the zone control unit. The zone control unit includes a sensor module and a control processor. The sensor module includes a supply air temperature and humidity sensor and a supply air pressure sensor installed at the air outlet, a return air temperature and humidity sensor and a return air pressure sensor installed at the air inlet, and a flow meter installed at each water outlet. The output of the sensor module is connected to the input of the control processor, and the supply fan, return fan, and flow regulating valve are all connected to the output of the control processor.

[0006] Preferably, a detachable partition is provided between two adjacent wet film assemblies.

[0007] Preferably, the honeycomb microstructure wet film is composed of a nanofiber-reinforced hydrophilic polymer substrate with an antibacterial and antifungal coating on its surface.

[0008] Preferably, the porosity of the nanofiber-reinforced hydrophilic polymer substrate is not less than 85%, and the water absorption rate is greater than 300%.

[0009] Preferably, the circulating water unit includes a connected inlet pipe, a main water supply pipe, and branch water supply pipes. The inlet pipe is fixed inside the housing, with one end connected to an external water supply device and the other end connected to the main water supply pipe. The main water supply pipe is connected to the branch water supply pipes. Multiple branch water supply pipes are provided, and the outlet of each branch water supply pipe faces the top of the fixed housing. A flow regulating valve is provided at each outlet of the branch water supply pipe. It also includes a water receiving tray, with a fixed housing located in the water receiving tray and a water outlet at the bottom of the fixed housing. The water receiving tray is connected to the water supply branch pipe via a circulating water pump, and the control terminal of the circulating water pump is connected to the output terminal of the control processor.

[0010] Preferably, a water treatment unit is installed between the inlet pipe and the supply branch pipe. The water treatment unit includes a micron-level filter component and a reverse osmosis softening component connected in sequence. Both components are equipped with an ultraviolet sterilization component on top, and both are within the coverage area of ​​the ultraviolet sterilization component. The outlet of the inlet pipe and the circulating water outlet of the water receiving tray are both connected to the micron-level filter component. The outlet of the reverse osmosis softening component is connected to the supply branch pipe through a circulating water pump. The control terminal of the ultraviolet sterilization component is connected to the output terminal of the control processor.

[0011] Preferably, the air supply unit further includes an antibacterial silver wire mesh structure, which is located on the air inlet side of the air supply fan.

[0012] Preferably, the return air unit also includes a filter screen, which is disposed on the air inlet side of the return air fan.

[0013] Preferably, the zone control unit further includes an operation screen, the input end of which is connected to the output end of the sensor module, and the display end of the operation screen is bidirectionally connected to the control processor.

[0014] Preferably, the control processor uses the comparison between the measured humidity and the humidity set range as the basis for humidification control: When the measured humidity is lower than the lower limit of the humidity setting range, the humidification function is turned on by adjusting the circulating water flow rate, the frequency of the supply fan, the frequency of the return fan, the angle of the supply air grille, and the angle of the return air grille. When the measured humidity is within the set humidity range, the humidification function continues to operate, and the humidity is kept stable by fine-tuning with a PID algorithm. When the measured humidity is higher than the upper limit of the humidity setting range, the humidification function and the circulating water unit are turned off, and the supply fan and return fan run at low speed.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses a multi-channel, zone-controlled, floor-standing wet film humidifier. By setting up an "S"-shaped multi-channel flow path, the contact path between dry air and the wet film is extended, significantly improving the humidification efficiency compared to traditional unidirectional wet film devices. Simultaneously, a zone-controlled mechanism enables efficient and precise humidification of locally dry indoor environments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the device housing according to the present invention; Figure 2 This is a schematic diagram of the circulating water system described in this invention; Figure 3 This is a schematic diagram of the multi-channel wet film module, air supply module, and return air module described in this invention; Figure 4 This is a schematic diagram of the honeycomb microstructure wet film described in this invention; Figure 5 This is the control flowchart of the present invention.

[0017] In the diagram: 1. Circulating water unit; 2. Multi-channel wet membrane unit; 3. Air supply unit; 4. Return air unit; 5. Zoning control unit; 6. Outer casing; 7. Water inlet pipe; 8. Ultraviolet sterilization component; 9. Micron-level filtration component; 10. Reverse osmosis softening component; 11. Circulating water pump; 12. Water receiving tray; 13. Water supply main pipe; 14. Water supply branch pipe; 15. First solenoid valve; 16. First connecting pipe; 17. Second connecting pipe; 18. Sewage pipe; 19. Second solenoid valve; 20. Third solenoid valve; 21. Flow regulating valve; 22. First wet membrane component; 23. Second wet membrane component; 24. Third wet membrane component; 25. Honeycomb microstructure wet membrane; 26. Antibacterial and anti-mildew coating; 27. 28. Nanofiber reinforced hydrophilic polymer substrate; 29. ​​Fixed shell; 30. Water inlet; 31. Divider plate; 32. Air supply fan; 33. Antibacterial silver wire mesh structure; 34. Return air fan; 35. Filter screen; 36. Sensor module; 37. Operation panel; 38. Air supply temperature and humidity sensor; 39. Return air temperature and humidity sensor; 40. Water level sensor; 41. Wind pressure sensor; 42. Water quality sensor; 43. Cumulative operation timer; 44. Equipment start / stop button; 45. Humidification adjustment knob; 46. Wind speed adjustment knob; 47. Angle adjustment knob; 48. Equipment operation parameter display box; 49. Alarm information box; 50. Grille air supply outlet; 51. Louvered return air outlet; 52. Blade. Detailed Implementation

[0018] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0019] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to fully and completely disclose the invention and to fully convey its scope to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the drawings is not intended to limit the invention. In the drawings, the same units / elements are referred to by the same reference numerals.

[0020] Unless otherwise stated, the terms used herein (including technical terms) have their common meaning as understood by one of ordinary skill in the art. Furthermore, it is understood that terms defined in commonly used dictionaries should be understood to have a meaning consistent with the context of their relevant field, and not to be interpreted as having an idealized or overly formal meaning.

[0021] The present invention will be further described in detail below with reference to specific embodiments. These descriptions are for explanation purposes only and are not intended to limit the scope of the invention.

[0022] This invention discloses a multi-channel, zone-controlled, floor-standing wet film humidification device, referring to... Figures 1-4 It includes an outer casing, inside which are installed a circulating water unit, a multi-channel wet film unit, an air supply unit, a return air unit, and a zone control unit, specifically: The multi-channel wet membrane unit includes at least two wet membrane components arranged side by side, with a detachable partition plate between adjacent wet membrane components to ensure effective zoned control.

[0023] The wet membrane assembly includes a fixed housing, which is S-shaped. The interior of the return air fixed housing is filled with a wet membrane having a honeycomb microstructure. The honeycomb microstructure wet membrane is composed of a nanofiber-reinforced hydrophilic polymer substrate with an antibacterial and antifungal coating. The nanofiber-reinforced hydrophilic polymer substrate is a polyvinyl alcohol-sodium carboxymethyl cellulose-cellulose nanofiber composite substrate, in which polyvinyl alcohol serves as the hydrophilic film-forming host, sodium carboxymethyl cellulose as the water-retaining reinforcing component, and cellulose nanofibers as the skeletal reinforcing phase. The antibacterial and antifungal coating is a chitosan quaternary ammonium salt-nano zinc oxide-organic silicon quaternary ammonium salt composite coating, applied to the surface of the hydrophilic polymer substrate by impregnation, spraying, or roller coating, and then dried and cured to form a stable coating. The antifungal coating inhibits the growth of bacteria and mold on the wet membrane surface, reduces microbial film formation and pore blockage, thereby maintaining the water absorption and ventilation performance of the wet membrane and helping to extend the service life of the wet membrane and the entire unit.

[0024] In one embodiment, the nanofiber-reinforced hydrophilic polymer substrate may also be a polyvinyl alcohol-sodium polyacrylate-cellulose nanofiber composite substrate, a polyvinyl alcohol-sodium alginate-cellulose nanofiber composite substrate, or a hydrophilic modified polyurethane-polyamide nanofiber composite substrate.

[0025] In one embodiment, the antibacterial and antifungal coating may also be a chitosan quaternary ammonium salt-nano titanium dioxide composite coating, a chitosan quaternary ammonium salt-nano silver composite coating, or an organosilicon quaternary ammonium salt coating.

[0026] In one embodiment, the porosity of the nanofiber-reinforced hydrophilic polymer substrate is not less than 85%, and the water absorption rate is greater than 300%.

[0027] The fixed housing includes an S-shaped upper end with an air inlet connected to a return air unit, and an air outlet at the lower end connected to a supply air unit. The supply air unit includes a supply fan located at the air outlet. The return air unit includes a return air fan located at the air inlet.

[0028] The S-shaped top of the fixed housing is provided with a water inlet, and the circulating water unit has multiple sets of water outlets, each set of water outlets corresponding to a wet film component; each set of water outlets has multiple water outlet points, and each water outlet point is equipped with a corresponding flow regulating valve.

[0029] The circulating water unit includes a connected inlet pipe and a water supply branch pipe. The inlet pipe is fixed inside the outer casing. One end of the inlet pipe is connected to the external water supply equipment through the first solenoid valve, and the other end is connected to the water supply main pipe. The water supply main pipe is connected to the water supply branch pipe.

[0030] The system includes multiple water supply branch pipes, with the outlet of each branch pipe facing the top of the fixed housing. A flow regulating valve is located at each outlet of the water supply branch pipe. The system also includes a water receiving tray, with the fixed housing located within it. An outlet is located at the bottom of the fixed housing. The water receiving tray is connected to the water supply branch pipes via a circulating water pump, and the control terminal of the circulating water pump is connected to the output terminal of the control processor.

[0031] The outer casing is equipped with air supply grilles and return air grilles at positions corresponding to the air inlet and return air outlet, that is, the outer casing is equipped with grille air supply outlets and louvered return air outlets, with the air supply grilles and return air grilles respectively installed in them.

[0032] The angles of both the supply air grille and the return air grille are controlled by the zone control unit.

[0033] The zone control unit includes a sensor module and a control processor. The sensor module includes a supply air temperature and humidity sensor and a supply air pressure sensor located at the air outlet, a return air temperature and humidity sensor and a return air pressure sensor located at the air inlet, and a flow meter located at each water outlet. The output of the sensor module is connected to the input of the control processor, and the supply fan, return fan, and flow regulating valve are all connected to the output of the control processor. The supply air temperature and humidity sensors and return air temperature and humidity sensors collect temperature and humidity data from each channel in real time to provide a basis for zone control. The air pressure sensor detects changes in the air resistance of the wet film assembly to determine the degree of clogging. When the supply air humidity exceeds the user-defined upper limit or falls below the lower limit, a "humidity abnormality alarm" is triggered, prompting equipment inspection. Current or speed feedback is used to detect fan / pump malfunctions, triggering an "equipment fault warning" and shutting down the system.

[0034] A third solenoid valve is installed on the water supply main. The control terminal of the third solenoid valve is connected to the output terminal of the control processor to control the water flow in the water supply main.

[0035] The control processor uses the comparison between the measured humidity and the set humidity range as the basis for humidification control: When the measured humidity is lower than the lower limit of the humidity setting range, the humidification function is turned on by adjusting the circulating water flow rate, the frequency of the supply fan, the frequency of the return fan, the angle of the supply air grille, and the angle of the return air grille. When the measured humidity is within the set humidity range, the humidification function continues to operate, and the humidity is kept stable by fine-tuning with a PID algorithm. When the measured humidity is higher than the upper limit of the humidity setting range, the humidification function and the circulating water unit are turned off, and the supply fan and return fan run at low speed.

[0036] In one embodiment, the water receiving tray is also provided with a sewage outlet, which is connected to a sewage pipe. A second solenoid valve is installed on the sewage pipe to discharge sewage that has been circulated multiple times, thereby ensuring water quality safety.

[0037] In one embodiment, a water treatment unit is provided between the inlet pipe and the supply branch pipe. The water treatment unit includes a micron-level filter component and a reverse osmosis softening component connected in sequence. An ultraviolet sterilization component is provided on the top of both components, and both are within the coverage area of ​​the ultraviolet sterilization component. The outlet of the inlet pipe and the circulating water outlet of the water receiving tray are both connected to the micron-level filter component. The outlet of the reverse osmosis softening component is connected to the supply branch pipe through a circulating water pump. The control terminal of the ultraviolet sterilization component is connected to the output terminal of the control processor.

[0038] Specifically, the micron-level filtration component is connected to the water receiving tray via a first connecting pipe, and the reverse osmosis softening component (filled with a sodium-type strong acid cation exchange softening filter cartridge + polyamide composite reverse osmosis membrane) is connected to the circulating water pump via a second connecting pipe. Tap water flows sequentially from the inlet pipe through the ultraviolet sterilization component (254nm UV-C ultraviolet light), the micron-level filtration component (5μm filtration level), and the reverse osmosis softening component to become sterile softened water. It is then pumped by the circulating water pump to the water supply branch pipe to wet the wet membrane material. Unabsorbed water is recovered through the bottom water receiving tray and re-enters the micron-level filtration component for circulation.

[0039] In this invention, a floor-standing wet membrane humidification device with multi-channel zone control, the return air unit filters and pressurizes the indoor dry air, and then sends it into the multi-channel wet membrane unit from the rear of the device. The dry air fully contacts the honeycomb microstructure wet membrane in the "S"-shaped wet membrane channel and absorbs moisture to form a high-humidity airflow. Finally, after being sterilized and accelerated by the air supply unit, it is delivered to the target humidification area.

[0040] In one embodiment, the fixed housing is made of rust-proof galvanized steel sheet to ensure the stability of the flow channel structure while being water-resistant and corrosion-resistant.

[0041] In one embodiment, the partition plate is made of stainless steel with a corrosion-resistant coating. Furthermore, the joint between the partition plate and the fixed housing is sealed to prevent air and water leakage.

[0042] In one embodiment, the micron-level filtration assembly includes multiple layers of removable filter screens arranged sequentially, with the screen size decreasing layer by layer to achieve a gradient physical interception from large to small, thereby ensuring the continuous stability of the effluent water quality. After water flows in, it passes through each filter screen in sequence; the fine filter screens with pore sizes of only a few micrometers can filter out tiny particles of sediment, rust, and colloidal substances. The removable design allows individual filter screens to be removed for cleaning or replacement, enabling maintenance without stopping the system.

[0043] In one embodiment, the air supply unit further includes an antibacterial silver wire mesh structure located on the air inlet side of the blower. On one hand, the broad-spectrum antibacterial properties of silver ions are utilized to inhibit the growth and reproduction of common pathogens such as Escherichia coli and Staphylococcus aureus attached to the air in the filter and inside the unit, thereby improving the cleanliness and safety of the exhaust air and protecting the user's respiratory health. On the other hand, this structure, located on the air inlet side, can intercept dust and microorganisms, not only reducing dust accumulation and microbial film formation inside the equipment but also helping to maintain heat exchange efficiency and extend the equipment's cleaning cycle and service life.

[0044] In one embodiment, the return air unit further includes a filter screen, which is disposed on the air inlet side of the return air fan. The filter screen can prevent the blades from becoming unbalanced and abnormally worn due to dust accumulation, which helps to extend the service life of the return air fan and thus ensures the long-term stable operation of the entire environmental control system.

[0045] In one embodiment, the zone control unit further includes an operation screen. The input end of the operation screen is connected to the output end of the sensor module, and the display end of the operation screen is bidirectionally connected to the control processor. The input end of the operation screen includes equipment start / stop buttons, humidification adjustment knobs, fan speed adjustment knobs, and angle adjustment knobs, used to control the start / stop and adjustment of the corresponding execution units. The display end includes equipment operating parameter display boxes and alarm information boxes for visualization, facilitating operation. By integrating core control functions such as equipment start / stop, humidification, fan speed, and angle adjustment with operating parameter display and alarm information, the operation screen not only improves the intuitiveness and accuracy of on-site adjustments and helps reduce the risk of misoperation, but also includes pre-warning and process controllability, shortening troubleshooting time and enabling preventative maintenance of the system.

[0046] In one embodiment, the sensor module further includes a water level sensor located on the water receiving tray. The water level sensor detects the water level in the receiving tray to achieve water shortage protection and automatic water replenishment control. When the water level in the receiving tray is too low or too high, the circulating water pump automatically stops operating and triggers a "water level warning" to prevent dry burning damage to the equipment or water leakage.

[0047] In one embodiment, the sensor module further includes a water quality sensor located at the inlet of the circulating water pump. The water quality sensor detects the quality of the softened water to ensure that the wet membrane is not damaged by hard water.

[0048] In one embodiment, the sensor module further includes a cumulative operating timer for recording the cumulative operating time of the wet film assembly and for triggering a replacement reminder. When the cumulative operating time of each wet film assembly exceeds 2000 hours or the wind pressure sensor detects abnormal wind resistance in the wet film assembly, a "wet film assembly replacement warning" is triggered and the machine is shut down, and the reset time after replacement is recorded.

[0049] In one embodiment, both the grille air supply outlet and the louvered return air outlet use ABS adjustable angle blades.

[0050] In one embodiment, three wet film assemblies are provided, referred to as the first wet film assembly, the second wet film assembly, and the third wet film assembly, respectively. Reference Figure 5 The implementation principle of the multi-channel zone-controlled floor-standing wet film humidification device of the present invention is as follows: S1. After the equipment is turned on, the system performs self-test and initializes the sensors. The user sets the parameters through the equipment operation parameter box. At the same time, each sensor starts to collect data in real time. The supply air temperature and humidity sensor and the return air temperature and humidity sensor collect temperature and humidity data of each channel in real time. The water level sensor detects the water level in the water receiving tray, and the wind pressure sensor detects the wind resistance change of the wet film assembly.

[0051] S2, perform equipment fault detection: When a fault occurs in the device, a fault alarm is triggered and displayed in the alarm information box, and the device enters standby mode. When there is no fault in the equipment, the equipment will run and execute S3.

[0052] S3, the main controller compares the measured humidity with the user-defined target range: When the measured humidity is lower than the lower limit of the humidity setting range, the humidification function is turned on. The control processor adjusts the circulating water flow, supply fan frequency, return fan frequency, supply air grille angle and return air grille angle in stages and in conjunction with the deviation between the measured humidity and the lower limit of the humidity setting range, the humidity difference between the supply and return air of each channel, and the feedback results of the wind pressure sensor.

[0053] Specifically, when the humidity deviation is small, the control processor prioritizes increasing the opening of the flow regulating valve on the water supply branch pipe of the corresponding wet film module, or increases the operating frequency of the circulating water pump, to increase the wetting degree and effective evaporation area of ​​the corresponding wet film module. When the humidity deviation persists or the rate of humidity decrease is large, the control processor increases the operating frequency of the supply fan and return fan in addition to increasing the circulating water flow rate, so that the amount of moisture exchanged by the dry air through the wet film module increases, and the ability of the humidified air to be delivered to the target area is improved. When the humidity of a local area is detected to be lower than the set lower limit, the control processor prioritizes adjusting the water supply flow rate of the wet film module corresponding to the low humidity area, and adjusts the corresponding supply air grille to face the low humidity area. At the same time, the return air grille angle is adjusted so that the air in the low humidity area can enter the wet film module through the corresponding return air path, thereby forming a directional humidification cycle for the local dry area.

[0054] When the measured humidity is within the set humidity range, the humidification function is kept running. Based on the deviation between the measured humidity and the target value of the set humidity range, the rate of humidity change, and the humidity difference between the supply and return air of each channel, the PID algorithm is used to make small closed-loop adjustments to the circulating water flow rate, the supply fan frequency, and the return fan frequency to maintain humidity stability.

[0055] When the measured humidity is higher than the upper limit of the humidity setting range, the humidification function and the circulating water unit are turned off. At the same time, the blower and return blower are put into low-speed operation or intermittent operation to remove the residual humid air inside the equipment and promote the return of residual water on the surface of the wet film to the water collection tray, so as to avoid the wet film being too wet for a long time, which would lead to the growth of microorganisms or the blockage of pores.

[0056] This invention discloses a multi-channel, zone-controlled floor-standing wet film humidification device. By dividing the air-wet film contact path into multiple channels, and relying on a zone-controlled system to adjust parameters such as the flow rate of the circulating water system, the speed of the supply and return fans, and the angle of the air supply grille, it achieves efficient and precise humidification of local dry indoor environments. It is a new type of wet film humidification device that can achieve efficient and directional humidification of local spaces, providing a key technical solution for refined local humidification of buildings.

[0057] The above description is merely a preferred embodiment of the present invention and is not intended to limit the technical solution of the present invention in any way. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can be modified and replaced in several simple ways, and these modifications and replacements are all within the scope of protection covered by the claims.

Claims

1. A floor-standing wet film humidifier with multi-channel zone control, characterized in that, The system includes an outer casing, inside which are installed a circulating water unit, a multi-channel wet film unit, an air supply unit, a return air unit, and a zone control unit. The multi-channel wet membrane unit includes at least two wet membrane assemblies arranged side by side. Each wet membrane assembly includes a fixed housing, which is S-shaped. The interior of the return air fixed housing is filled with a wet membrane having a honeycomb microstructure. The fixed housing includes an air inlet at the upper S-shaped part of the fixed housing, which is connected to the return air unit, and an air outlet at the lower part, which is connected to the supply air unit. The S-shaped top of the fixed housing is provided with a water inlet, and the circulating water unit has multiple sets of water outlets, each set of water outlets corresponding to a wet film component; each set of water outlets has multiple water outlets, and each water outlet is provided with a corresponding flow regulating valve. The air supply unit includes a blower, which is located at the air outlet. The return air unit includes a return air fan, which is located at the air inlet; The outer casing is equipped with air supply grilles and return air grilles at positions corresponding to the air inlet and return air outlet. The angles of the air supply grilles and return air grilles are controlled by the zone control unit. The zone control unit includes a sensor module and a control processor. The sensor module includes a supply air temperature and humidity sensor and a supply air pressure sensor installed at the air outlet, a return air temperature and humidity sensor and a return air pressure sensor installed at the air inlet, and a flow meter installed at each water outlet. The output of the sensor module is connected to the input of the control processor, and the supply fan, return fan, and flow regulating valve are all connected to the output of the control processor.

2. The multi-channel zone-controlled floor-standing wet film humidification device according to claim 1, characterized in that, A detachable partition is provided between two adjacent wet film assemblies.

3. The multi-channel zone-controlled floor-standing wet film humidification device according to claim 1, characterized in that, The honeycomb-like microstructure wet film is composed of a hydrophilic polymer substrate reinforced with nanofibers and coated with an antibacterial and antifungal coating.

4. The multi-channel zone-controlled floor-standing wet film humidification device according to claim 3, characterized in that, The porosity of the nanofiber-reinforced hydrophilic polymer substrate is not less than 85%, and the water absorption rate is greater than 300%.

5. The multi-channel zone-controlled floor-standing wet film humidification device according to claim 1, characterized in that, The circulating water unit includes a connected inlet pipe, a main supply pipe, and branch supply pipes. The inlet pipe is fixed inside the outer casing, with one end connected to an external water supply device and the other end connected to the main supply pipe. The main supply pipe is connected to the branch supply pipes. There are multiple branch supply pipes, and the outlet of each branch supply pipe faces the top of the fixed casing. A flow regulating valve is located at each outlet of the branch supply pipe. It also includes a water receiving tray, with a fixed housing located in the water receiving tray and a water outlet at the bottom of the fixed housing. The water receiving tray is connected to the water supply branch pipe via a circulating water pump, and the control terminal of the circulating water pump is connected to the output terminal of the control processor.

6. The multi-channel zone-controlled floor-standing wet film humidification device according to claim 5, characterized in that, A water treatment unit is installed between the inlet pipe and the supply branch pipe. The water treatment unit includes a micron-level filter component and a reverse osmosis softening component connected in sequence. Both components are equipped with an ultraviolet sterilization component on top, and both are within the coverage area of ​​the ultraviolet sterilization component. The outlet of the inlet pipe and the circulating water outlet of the water receiving tray are connected to the micron-level filter component. The outlet of the reverse osmosis softening component is connected to the supply branch pipe through a circulating water pump. The control terminal of the ultraviolet sterilization component is connected to the output terminal of the control processor.

7. The multi-channel zone-controlled floor-standing wet film humidification device according to claim 1, characterized in that, The air supply unit also includes an antibacterial silver wire mesh structure, which is located on the air inlet side of the blower.

8. The multi-channel zone-controlled floor-standing wet film humidification device according to claim 1, characterized in that, The return air unit also includes a filter screen, which is located on the air inlet side of the return air fan.

9. The multi-channel zone-controlled floor-standing wet film humidifier according to claim 1, characterized in that, The zone control unit also includes an operation screen, whose input end is connected to the output end of the sensor module, and whose display end is bidirectionally connected to the control processor.

10. The multi-channel zone-controlled floor-standing wet film humidification device according to claim 1, characterized in that, The control processor uses the comparison between the measured humidity and the set humidity range as the basis for humidification control: When the measured humidity is lower than the lower limit of the humidity setting range, the humidification function is turned on by adjusting the circulating water flow rate, the frequency of the supply fan, the frequency of the return fan, the angle of the supply air grille, and the angle of the return air grille. When the measured humidity is within the set humidity range, the humidification function continues to operate, and the humidity is kept stable by fine-tuning with a PID algorithm. When the measured humidity is higher than the upper limit of the humidity setting range, the humidification function and the circulating water unit are turned off, and the supply fan and return fan run at low speed.

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