Thermoacoustic humidifier

Abstract

The present application relates to the technical field of air humidifier, and provide a thermoacoustic humidifier, including water tank, thermoacoustic device and drainage device, drainage device is used to make air from thermoacoustic device import to thermoacoustic device outlet flow, wherein, thermoacoustic device includes resonance tube, sound source and thermoacoustic plate stack, water tank is communicated with resonance tube;Sound source is arranged in resonance tube;The first part of thermoacoustic plate stack is located in water tank, the second part of thermoacoustic plate stack is located in resonance tube, and the material of thermoacoustic plate stack is the material with hydrophilic and water absorption property.Through wet type thermoacoustic heat pump heat effect, utilize the phase change of water, improve the efficiency of thermoacoustic heat pump, make the temperature at the outlet of thermoacoustic plate stack higher than room temperature, realize the evaporation of water;Drainage device makes air form steady flow and realizes the heat balance of heat pump process, accelerates the outflow of hot and humid air, so as to humidify the air outside.

Description

Technical Field

[0001] The present invention relates to the technical field of air humidifiers, and in particular to a thermoacoustic humidifier. Background Art

[0002] Air humidifiers are widely used in both industrial and domestic applications. There are three main types of humidifiers: ultrasonic, direct evaporative, and thermal evaporative. Ultrasonic humidifiers are prone to condensation accumulation near the moisture outlet during use. Direct evaporative humidifiers use air convection to accelerate the evaporation of water at room temperature, thereby achieving a humidifying effect. However, direct evaporative humidifiers generally have a lower humidification rate. Thermal evaporative humidifiers achieve humidification by heating water to boiling and then using a fan to deliver water vapor. However, thermal evaporative humidifiers consume more energy and face safety issues such as dry burning. Summary of the Invention

[0003] The present invention provides a thermoacoustic humidifier to solve the defects of humidifiers in the prior art during use, such as condensate accumulation, low evaporation rate, high power consumption and safety issues. Driven by sound waves, water can be evaporated at a high speed, high efficiency and safety at a temperature slightly above room temperature.

[0004] The present invention provides a thermoacoustic humidifier, comprising a water tank, a thermoacoustic device and a drainage device, wherein the drainage device is used to make air flow from the inlet of the thermoacoustic device to the outlet of the thermoacoustic device, wherein the thermoacoustic device comprises:

[0005] a resonance tube, wherein the water tank is in communication with the resonance tube;

[0006] a sound source, disposed in the resonance tube;

[0007] The thermoacoustic plate stack, wherein the first portion of the thermoacoustic plate stack is located in the water tank, the second portion of the thermoacoustic plate stack is located in the resonance tube, and the material of the thermoacoustic plate stack is a hydrophilic and water-absorbent material.

[0008] According to a thermoacoustic humidifier provided by the present invention, a plurality of thermoacoustic devices are provided, and the inlets of the plurality of thermoacoustic devices are connected and / or the outlets of the plurality of thermoacoustic devices are connected.

[0009] According to a thermoacoustic humidifier provided by the present invention, the water tank is provided with one, and the first parts of the thermoacoustic plate stacks of the plurality of thermoacoustic devices are all located in the water tank;

[0010] or,

[0011] There are multiple water tanks, and the first parts of the thermoacoustic plate stacks of the multiple thermoacoustic devices are respectively located in the multiple water tanks.

[0012] According to a thermoacoustic humidifier provided by the present invention, the thermoacoustic device further includes a partition, which is located in the resonance tube and extends along the axial direction of the resonance tube, and the vibration direction of the sound source is perpendicular to the axial direction of the resonance tube.

[0013] According to a thermoacoustic humidifier provided by the present invention, the resonance tube comprises:

[0014] a horizontal resonance tube, the water tank being in communication with the horizontal resonance tube, and the second portion of the thermoacoustic plate stack being located within the horizontal resonance tube;

[0015] A vertical resonance tube is arranged on the side of the horizontal resonance tube, one end of the vertical resonance tube is connected to the horizontal resonance tube and the other end is closed, and the sound source is horizontally arranged in the vertical resonance tube.

[0016] According to a thermoacoustic humidifier provided by the present invention, an air filter is provided at the inlet of the thermoacoustic device.

[0017] According to a thermoacoustic humidifier provided by the present invention, the drainage device is a fan, and the blowing direction of the fan is consistent with the direction from the inlet of the thermoacoustic device to the outlet of the thermoacoustic device.

[0018] According to a thermoacoustic humidifier provided by the present invention, the thermoacoustic plate stack is a porous medium.

[0019] According to a thermoacoustic humidifier provided by the present invention, the thermoacoustic plate stack is a parallel flow channel honeycomb structure, a porous foam structure, or a stacked wire mesh structure.

[0020] According to a thermoacoustic humidifier provided by the present invention, the sound source is an oscillating component for generating acoustic work.

[0021] According to the thermoacoustic humidifier provided by the present invention, the sound source is a speaker, a vibrating piston, or a vibrating membrane.

[0022] The thermoacoustic humidifier provided by the present invention improves the efficiency of thermoacoustic pumping by utilizing the phase change of water through the thermal effect of a wet thermoacoustic pump, and can make the temperature at the outlet of the thermoacoustic plate stack higher than the room temperature, which is conducive to the evaporation of water absorbed by the thermoacoustic plate stack; the drainage device forms a steady flow of air from the inlet of the resonance tube to the outlet of the resonance tube, which can achieve the thermal balance of the pumping heat process, is conducive to the evaporation of water on the thermoacoustic plate stack, and accelerates the outflow of hot and humid air, thereby humidifying the outside air. In addition, since the increase in the air temperature in the resonance tube comes from the thermal effect of the thermoacoustic pump rather than direct heating, the process consumes little energy, and even if the liquid in the water tank evaporates, there is no danger of a sharp increase in temperature. In addition, the humidifier has a simple structure, reliable operation, higher economy, and a long service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 It is a structural schematic diagram of the thermoacoustic humidifier provided by the present invention (including a thermoacoustic device);

[0025] Figure 2 Schematic diagram of the structure of the thermoacoustic humidifier provided by the present invention (comprising two thermoacoustic devices, the outlets of the two thermoacoustic devices are connected);

[0026] Figure 3 Schematic diagram of the structure of the thermoacoustic humidifier provided by the present invention (including a partition);

[0027] Figure 4 Schematic diagram of the structure of the thermoacoustic humidifier provided by the present invention (when the sound source is arranged on the side of the resonance tube);

[0028] Figure 5 It is a structural schematic diagram of the thermoacoustic humidifier provided by the present invention (including two thermoacoustic devices, the inlets of the two thermoacoustic devices are connected and the outlets of the two thermoacoustic devices are connected).

[0029] Reference numerals:

[0030] 1: Air filter; 2: Resonance tube; 3: Sound source; 4: Thermoacoustic plate stack;

[0031] 5: Fan; 6: Water tank; 21: Horizontal resonance tube; 22: Vertical resonance tube. DETAILED DESCRIPTION

[0032] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0033] The following combination Figures 1 to 5 The thermoacoustic humidifier of the present invention is described.

[0034] like Figure 1As shown, the present invention provides a thermoacoustic humidifier, which includes a water tank 6, a thermoacoustic device and a drainage device. The drainage device is used to make air flow from the inlet of the thermoacoustic device to the outlet of the thermoacoustic device so that there is a stable steady air flow in the thermoacoustic device.

[0035] The thermoacoustic device includes a resonance tube 2, a sound source 3, and a thermoacoustic plate stack 4. A water tank 6 is connected to the resonance tube 2, and the sound source 3 is disposed within the resonance tube 2. The second portion of the thermoacoustic plate stack 4 is located within the resonance tube 2. Driven by the acoustic work generated by the sound source 3, the thermoacoustic plate stack 4 generates a thermoacoustic pumping effect. Furthermore, the first portion of the thermoacoustic plate stack 4 is located within the water tank 6 and immersed in the water within the water tank 6. The thermoacoustic plate stack 4 can be made of a hydrophilic and water-absorbent material to maintain overall moisture within the thermoacoustic plate stack 4 and the walls of the microchannels within the thermoacoustic plate stack 4 due to capillary action. Due to the thermoacoustic pumping effect, a temperature gradient is established within the thermoacoustic plate stack 4, promoting the evaporation of water on the thermoacoustic plate stack 4. Furthermore, as air flows from the inlet to the outlet of the thermoacoustic device, it can carry water vapor generated on the thermoacoustic plate stack to the outlet, whereupon the water vapor is discharged from the outlet to humidify the external air.

[0036] It should be noted that when the thermoacoustic plate stack 4 is arranged as a whole at the position of the inlet of the thermal acoustic device in the middle of the resonance tube 2, the temperature of the end of the thermal acoustic plate stack 4 away from the inlet is higher than the temperature of the end of the thermal acoustic plate stack 4 close to the inlet; when the thermoacoustic plate stack 4 is arranged as a whole at the position of the outlet of the thermal acoustic device in the middle of the resonance tube 2, the temperature of the end of the thermal acoustic plate stack 4 away from the outlet is higher than the temperature of the end of the thermal acoustic plate stack 4 close to the outlet.

[0037] In this embodiment, the inlet of the thermoacoustic device is located on the left side of the resonance tube 2, and the outlet of the thermoacoustic device is located on the right side of the resonance tube 2. The entire arrangement of the thermoacoustic plate stack 4 in the middle of the resonance tube 2, closer to the inlet of the thermoacoustic device, is equivalent to the entire arrangement of the thermoacoustic plate stack 4 in the left half of the resonance tube 2; the entire arrangement of the thermoacoustic plate stack 4 in the middle of the resonance tube 2, closer to the outlet of the thermoacoustic device, is equivalent to the arrangement of the thermoacoustic plate stack 4 in the right half of the resonance tube 2.

[0038] In this embodiment, the moisture in the thermoacoustic plate stack 4 evaporates at the high-temperature end of the thermoacoustic plate stack 4. If the thermoacoustic plate stack 4 is set as a whole in the left half of the resonance tube 2, the air can drive the water vapor generated at the right end of the thermoacoustic plate stack 4 to flow directly to the outlet during the circulation process, which is conducive to improving the humidification effect; if the thermoacoustic plate stack 4 is set as a whole in the right half of the resonance tube 2, the moisture in the thermoacoustic plate stack 4 will evaporate at the left end of the thermoacoustic plate stack 4. During the circulation process, the air drives the water vapor to pass through the thermoacoustic plate stack 4 before it can flow to the outlet. In this process, part of the water vapor will condense at the right end (low-temperature end) of the thermoacoustic plate stack 4, and part will flow to the outlet with the air, so the humidification effect is relatively small. Therefore, in order to improve the performance of the system, it is preferred to set the thermoacoustic plate stack 4 in the left half of the resonance tube 2, and make the right end of the thermoacoustic plate stack 4 close to the midpoint of the resonance tube 2.

[0039] It should be noted that the temperature increase caused by the thermal effect of the thermoacoustic pump is generally in the range of several degrees Celsius to several tens of degrees Celsius.

[0040] When sound source 3 is operating, a stable standing wave acoustic field is established within resonance tube 2. Within this acoustic field, a wet thermoacoustic conversion process (i.e., a thermoacoustic conversion process enhanced by gas-liquid phase change) occurs within the microchannels of thermoacoustic plate stack 4, achieving heat pumping by consuming acoustic energy. Under the action of thermoacoustic heat pumping, heat is pumped from the air inlet side (left end) of thermoacoustic plate stack 4 to the air outlet side (right end), establishing a temperature gradient within thermoacoustic plate stack 4 along the direction of air flow. Specifically, the air inlet side (left end) of thermoacoustic plate stack 4 remains at room temperature (or slightly below), while the air outlet side (right end) of thermoacoustic plate stack 4 is above room temperature. This increased temperature of thermoacoustic plate stack 4 facilitates the evaporation of water on its surface. Furthermore, due to the drainage effect of the drainage device, a stable, steady air flow exists within resonance tube 2. This steady flow acts as a heat exchanger, allowing the air to serve as the heat load for the cold end of thermoacoustic plate stack 4. Therefore, the present invention does not require an additional heat exchanger. Under the action of the above effects, moist air with a temperature slightly higher than room temperature (humid air formed at the hot end of the thermoacoustic plate stack 4) flows out from the resonance tube 2, moistening the air outside the thermoacoustic humidifier, thereby achieving a humidification effect.

[0041] It's important to emphasize that the wet thermoacoustic effect itself causes periodic evaporation and condensation of water on the plate stack surface, generating a time-averaged, moist air flow within the plate stack's microchannels, which aids evaporation. Wet thermoacoustic conversion introduces a periodic evaporation and condensation process, stimulated by pressure and temperature oscillations, into traditional thermoacoustic conversion. This process enhances thermoacoustic conversion by utilizing the dramatic density and volume changes, as well as the release and absorption of latent heat, produced by the working fluid. Compared to traditional thermoacoustic pumping, wet thermoacoustic pumping can generate a greater amount of pump heat within a certain temperature range.

[0042] With this arrangement, the efficiency of the thermoacoustic pump heat can be improved by utilizing the phase change of water through the thermal effect of the wet thermoacoustic pump, so that the temperature at the outlet of the thermoacoustic plate stack 4 can be higher than the room temperature, which is conducive to the evaporation of water absorbed by the thermoacoustic plate stack 4; the drainage device causes the air to form a steady flow from the inlet of the thermoacoustic device to the outlet of the thermoacoustic device, which can achieve the thermal balance of the pump heat process, is conducive to the evaporation of water on the thermoacoustic plate stack 4, and accelerates the outflow of hot and humid air, thereby humidifying the outside air. In addition, since the increase in the air temperature in the resonance tube 2 comes from the thermal effect of the thermoacoustic pump rather than direct heating, the process consumes little energy, and even if the liquid in the water tank 6 evaporates, there is no risk of a sharp increase in temperature. In addition, the humidifier has a simple structure, reliable operation, higher economy, and a long service life.

[0043] In an optional embodiment of the present invention, an air filter is provided at the inlet of the thermoacoustic device, that is, an air filter is provided at the inlet of the resonance tube 2 to filter the air entering the resonance tube 2, thereby preventing foreign matter such as dust from entering the resonance tube 2. Here, the air filter can be an air filter 1.

[0044] In this embodiment, the inlet of the thermoacoustic device can be set at the end of the resonance tube 2, or the inlet of the thermoacoustic device can be set at the side of the resonance tube 2; and the inlet of the thermoacoustic device can be set upstream of the thermoacoustic plate stack 4, so that the air entering the resonance tube 2 from the inlet can pass through the thermoacoustic plate stack 4; the shape of the inlet of the thermoacoustic device can be set according to actual needs.

[0045] It should be noted that the position and shape of the inlet of the thermoacoustic device are not specifically limited here, as long as the outside air can enter the resonance tube 2 through the inlet of the thermoacoustic device. The upstream and downstream are determined according to the flow direction of the air.

[0046] In an optional embodiment of the present invention, the airflow device can be a fan 5, whose blowing direction aligns with the direction from the thermoacoustic device inlet to the thermoacoustic device outlet. This allows dry air to be introduced into the resonance tube 2, while simultaneously generating a steady flow within the resonance tube 2 from the cold end of the thermoacoustic plate stack 4 to the hot end. This steady flow removes the heat and cooling loads generated by the thermal effect of the thermoacoustic pump, achieving thermal equilibrium. It also directs the humidified air formed at the hot end of the thermoacoustic plate stack 4 out of the resonant tube to humidify the air outside the thermoacoustic humidifier.

[0047] In other embodiments, the fan 5 can be arranged inside the resonance tube 2, or the fan 5 can be arranged at the inlet of the resonance tube 2 or the outlet of the resonance tube 2. The specific position of the fan 5 is not limited here, as long as the fan 5 can promote the flow of air from the inlet of the resonance tube 2 toward the outlet of the resonance tube 2.

[0048] It should be noted that the drainage device can be any device that can allow air to circulate throughout the entire system (ie, the entire resonance tube 2 ), as long as it can allow air to flow from the inlet of the resonance tube 2 toward the outlet of the resonance tube 2 .

[0049] In an optional embodiment of the present invention, the first part of the thermoacoustic plate stack 4 is connected to the tube wall of the resonance tube 2, so that the thermoacoustic plate stack 4 is fixed in the resonance tube 2, preventing the thermoacoustic plate stack 4 from being displaced by the drainage action of the drainage device.

[0050] In an optional embodiment, the thermoacoustic plate stack 4 may be a porous medium, so that microchannels for air to pass through exist in the thermoacoustic plate stack 4 and water evaporation occurs on the surface of the microchannels.

[0051] Specifically, the thermoacoustic plate stack 4 may be a parallel flow channel honeycomb structure, or a porous foam structure or a stacked wire mesh structure.

[0052] In this embodiment, the material of the thermoacoustic plate stack 4 can be one or more of cellulose, zeolite, cotton, linen, etc.

[0053] In an optional embodiment, the sound source 3 can be an oscillating component for generating acoustic work. Specifically, the sound source 3 can be a speaker, or a vibrating piston or a vibrating membrane, etc. The vibrating membrane can be a piezoelectric vibrating membrane; the sound source 3 is not specifically limited here.

[0054] In one embodiment, a plurality of thermoacoustic devices are provided, and the inlets of the plurality of thermoacoustic devices can be connected and / or the outlets of the plurality of thermoacoustic devices can be connected. This is beneficial for improving the humidification efficiency of the thermoacoustic humidifier and reducing the volume of the thermoacoustic humidifier.

[0055] Specifically, in the first mode, the inlets of the multiple thermoacoustic devices are connected, and the outlets of the multiple thermoacoustic devices are not connected, that is, the thermoacoustic humidifier can be provided with only one inlet and multiple outlets to improve the humidification efficiency.

[0056] In the second embodiment, the outlets of the multiple thermoacoustic devices are connected, and the inlets of the multiple thermoacoustic devices are not connected, that is, the thermoacoustic humidifier can be provided with multiple inlets and one outlet.

[0057] In the third mode, the inlets of multiple thermoacoustic devices are connected, and the outlets of multiple thermoacoustic devices are connected, that is, the thermoacoustic humidifier can be provided with one inlet and one outlet, and multiple thermoacoustic devices share one inlet and one outlet.

[0058] In addition, if Figure 5As shown, one drainage device can be provided. Specifically, the drainage device can be provided at the inlet of the resonance tube 2 or the outlet of the resonance tube 2 so as to utilize one drainage device to simultaneously guide the humid air in multiple resonance tubes 2 .

[0059] Alternatively, a plurality of drainage devices may be provided, and the plurality of drainage devices may be respectively provided in the plurality of resonance tubes 2 , so as to utilize the plurality of drainage devices to respectively guide the humid air in the plurality of resonance tubes 2 .

[0060] In an optional embodiment, the water tank 6 may be provided with one, and the first parts of the thermoacoustic plate stacks 4 of the multiple thermoacoustic devices are all located in the water tank 6, which is beneficial to reducing the volume of the thermoacoustic humidifier.

[0061] In another embodiment, a plurality of water tanks 6 may be provided, and the plurality of thermoacoustic devices correspond one-to-one to the plurality of water tanks 6 , and the first parts of the thermoacoustic plate stacks 4 of the plurality of thermoacoustic devices are respectively located in the plurality of water tanks 6 .

[0062] Here, the number of drainage devices and water tanks 6 is not limited, as long as they can support the circulation of air in each thermoacoustic plate stack 4 and ensure that the surface of the thermoacoustic plate stack 4 is moist.

[0063] In an optional embodiment, if Figure 3 As shown, the thermoacoustic device further includes a partition located within the resonance tube 2 and extending along the axial direction of the resonance tube 2. The vibration direction of the sound source 3 is perpendicular to the axial direction of the resonance tube 2, that is, the sound source 3 is arranged horizontally. In this way, the partition can divide the resonance tube 2 into two parts, upper and lower. When the sound source 3 oscillates, the phase difference between the acoustic oscillations in the upper and lower parts of the resonance tube 2 is 180 degrees.

[0064] It should be noted that the sound source 3 can be arranged at the end of the partition near the inlet of the resonance tube 2, and the sound source 3 and the partition are located on the same plane. Alternatively, the partition is provided with a through hole near the inlet of the resonance tube 2, and the sound source 3 is horizontally arranged in the through hole.

[0065] In an optional embodiment, if Figure 4 As shown, the sound source 3 can be arranged on the side of the resonance tube 2. This arrangement of the sound source 3 can increase the flexibility of the configuration of the thermoacoustic humidifier.

[0066] Specifically, if Figure 4As shown, the resonance tube 2 includes a horizontal resonance tube 21 and a vertical resonance tube 22. The inlet and outlet of the resonance tube 2 are respectively located at the two ends of the horizontal resonance tube 21. The second part of the thermoacoustic plate stack 4 is located in the horizontal resonance tube 21. The vertical resonance tube 22 is arranged on the side of the horizontal resonance tube 21. One end of the vertical resonance tube 22 is connected to the horizontal resonance tube 21 and the other end is closed. The sound source 3 can be horizontally arranged in the vertical resonance tube 22. The sound waves generated by the sound source 3 can enter the horizontal resonance tube 21 from the vertical resonance tube 22 and propagate along the horizontal resonance tube 21.

[0067] The present invention provides a thermoacoustic humidifier comprising a linear, half-wavelength, horizontally positioned resonance tube 2. The inlet of resonance tube 2 serves as an air inlet and is provided with an air filter 1 to prevent debris from entering resonance tube 2. A sound source 3 is positioned near the inlet of resonance tube 2, generating sound waves that drive the entire system. A first portion of a thermoacoustic plate stack 4 is positioned within a water tank 6, while a second portion of the thermoacoustic plate stack 4 is positioned within resonance tube 2 (the second portion of the thermoacoustic plate stack 4 can be positioned in the center or slightly to the left of the center of the resonance tube 2). Wet thermoacoustic conversion occurs within the thermoacoustic plate stack 4, generating a pumping heat effect by consuming acoustic energy. The structure of the thermoacoustic plate stack 4 can be a honeycomb structure with parallel flow channels, a porous foam structure, or a stacked wire mesh structure. The material of the thermoacoustic plate stack 4 exhibits high hydrophilicity, water absorption, and capillary properties. The first portion of the thermoacoustic plate stack 4 is immersed in water within the water tank 6, allowing the entire stack 4 to remain moist due to capillary action. The fan 5 is provided at the outlet of the resonance tube 2 (the rightmost end of the resonance tube 2 ) and is used to form a steady axial air flow inside the resonance tube 2 .

[0068] The wall surface of the thermoacoustic plate stack 4 will remain moist due to capillary forces. Due to the action of sound waves, a wet thermoacoustic conversion process will occur in the microchannels within the thermoacoustic plate stack 4. On the one hand, a temperature gradient will be established on the thermoacoustic plate stack 4. The air inlet side of the thermoacoustic plate stack 4 will remain at room temperature (or slightly below room temperature), while the temperature of the air outlet side of the thermoacoustic plate stack 4 will be higher than room temperature. The increase in temperature is conducive to the rapid evaporation of water. On the other hand, the wet thermoacoustic effect will cause the water on the surface of the thermoacoustic plate stack 4 to evaporate and condense periodically, and generate a moist time-averaged air flow in the microchannels of the thermoacoustic plate stack 4, which facilitates evaporation. Under this effect, moist air with a temperature slightly higher than room temperature will flow from the thermoacoustic plate stack 4 through the fan 5 and out of the resonance tube 2, moistening the air outside the resonance tube 2 (thermoacoustic humidifier).

[0069] The device embodiments described above are merely illustrative, and some or all of the modules may be selected according to actual needs to achieve the purpose of the present embodiment. Those skilled in the art may understand and implement the present invention without inventive effort.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention. Therefore, the present invention is not limited to the above embodiments, and improvements and modifications made to the present invention by those skilled in the art based on the disclosure of the present invention should be within the scope of protection of the present invention.

Claims

1. A thermoacoustic humidifier, characterized in that: The invention comprises a water tank, a thermoacoustic device and a drainage device, wherein the drainage device is used to make air flow from the inlet of the thermoacoustic device to the outlet of the thermoacoustic device, wherein the thermoacoustic device comprises: a resonance tube, wherein the water tank is in communication with the resonance tube; a sound source, disposed in the resonance tube; The thermoacoustic plate stack, wherein the first portion of the thermoacoustic plate stack is located in the water tank, the second portion of the thermoacoustic plate stack is located in the resonance tube, and the material of the thermoacoustic plate stack is a hydrophilic and water-absorbent material.

2. The thermoacoustic humidifier according to claim 1, characterized in that There are multiple thermoacoustic devices, and the inlets of the multiple thermoacoustic devices are connected and / or the outlets of the multiple thermoacoustic devices are connected.

3. The thermoacoustic humidifier according to claim 2, characterized in that The water tank is provided with one, and the first parts of the thermoacoustic plate stacks of the plurality of thermoacoustic devices are all located in the water tank; or, There are multiple water tanks, and the first parts of the thermoacoustic plate stacks of the multiple thermoacoustic devices are respectively located in the multiple water tanks.

4. The thermoacoustic humidifier according to claim 1, characterized in that The thermoacoustic device further includes a partition, which is located in the resonance tube and extends along the axial direction of the resonance tube. The vibration direction of the sound source is perpendicular to the axial direction of the resonance tube.

5. The thermoacoustic humidifier according to claim 1, characterized in that The resonance tube comprises: a horizontal resonance tube, the water tank being in communication with the horizontal resonance tube, and the second portion of the thermoacoustic plate stack being located within the horizontal resonance tube; A vertical resonance tube is arranged on the side of the horizontal resonance tube, one end of the vertical resonance tube is connected to the horizontal resonance tube and the other end is closed, and the sound source is horizontally arranged in the vertical resonance tube.

6. The thermoacoustic humidifier according to claim 1, characterized in that An air filter is provided at the inlet of the thermoacoustic device.

7. The thermoacoustic humidifier according to claim 1, characterized in that The drainage device is a fan, and the blowing direction of the fan is consistent with the direction from the inlet of the thermoacoustic device to the outlet of the thermoacoustic device.

8. The thermoacoustic humidifier according to claim 1, characterized in that The thermoacoustic plate stack is a porous medium.

9. The thermoacoustic humidifier according to claim 8, characterized in that The thermoacoustic plate stack is a parallel flow channel honeycomb structure, a porous foam structure, or a stacked wire mesh structure.

10. The thermoacoustic humidifier according to claim 1, characterized in that The sound source is an oscillating component for generating acoustic work.

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