Water curtain air purification device

Abstract

The utility model relates to air purification field, specifically provide a water curtain air purification device, aims at solving the problem that the water flow noise of current water curtain air purification equipment is big. For this purpose, the water curtain air purification device of the utility model includes outer bucket, casing assembly, water seal subassembly and flow guide structure, casing assembly sets up in the outer bucket, and including first air inlet, the outside wall of casing assembly forms annular first air outlet with the inside wall of outer bucket, water seal subassembly part is located inside casing assembly and is connected with the water of outer bucket bottom, is structured into can inject the water curtain -like water to the inside wall of casing assembly and forms water seal with the inside wall of casing assembly, flow guide structure is located in the inside wall of casing assembly and / or water seal subassembly, is structured into can make the water that flows along the inside wall of casing assembly and / or water seal subassembly is guided to the bottom of casing assembly, to reduce the water flow noise in air purification device.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, specifically providing a water curtain air purification device. Background Technology

[0002] Currently, as people's demands for air quality increase, the application of air purification equipment is becoming more widespread. Among them, water curtain air purification equipment, which uses water washing to purify the air, is particularly popular due to its environmental friendliness. Furthermore, the water used in the purification process can be recycled, further enhancing its environmental performance and reducing operating costs. In addition, water curtain air purification equipment typically features a simple structure.

[0003] However, existing water curtain air purification equipment usually generates a lot of noise when the water curtain flows downward under its own gravity after contacting the water curtain panel. This can easily cause noise pollution in the living environment. Being in a noisy environment for a long time can pose a safety hazard to the human body, thereby affecting people's work comfort and causing many inconveniences to their daily lives.

[0004] Accordingly, a new technical solution is needed in this field to solve the above problems. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems, namely, to solve the problem of high water flow noise in existing water curtain air purification equipment.

[0006] This utility model provides a water curtain air purification device, the water curtain air purification device comprising:

[0007] Outer drum;

[0008] A housing assembly disposed within the outer barrel and including a first air inlet, the housing assembly and the outer barrel forming an annular first air outlet;

[0009] A water seal assembly, partially inserted into the interior of the housing assembly and in communication with water at the bottom of the outer tank, is configured to spray a curtain of water onto the inner wall of the housing assembly and form a water seal with the inner wall of the housing assembly; and

[0010] A flow guiding structure, located on the inner wall of the housing assembly and / or the water seal assembly, is configured to guide water flowing down the inner wall of the housing assembly and / or the water seal assembly to the bottom of the housing assembly, thereby reducing water flow noise in the air purification device.

[0011] When the above technical solution is adopted, the curtain-like water sprayed by the water seal assembly onto the inner wall of the housing assembly forms a water seal with the inner wall of the housing, so that the curtain-like water can purify the flowing air. Moreover, the water curtain air purification device of this utility model also has a flow guiding structure on the inner wall of the housing assembly and / or the liquid seal assembly, so that the water flowing down along the inner wall of the housing assembly and / or the water seal assembly gradually flows to the bottom of the housing assembly under the action of the flow guiding structure and is collected by the water tank, thereby reducing the sound of water flow in the water curtain air purification device and thus reducing the water flow noise of the water curtain air purification device.

[0012] In the preferred embodiment of the above-mentioned water curtain air purification device, the housing assembly includes:

[0013] A first sleeve includes a first air inlet and a second air outlet, the first air inlet being located at the top of the first sleeve and the second air outlet being located at the bottom of the first sleeve; and

[0014] The second sleeve includes a second air inlet and a first air outlet. The second air inlet is located on the side wall of the second sleeve, and the first air outlet is formed between the outer side wall of the second sleeve and the inner side wall of the outer barrel.

[0015] The first sleeve is coaxially sleeved in the second sleeve, and the first sleeve and the second sleeve are detachably connected.

[0016] When the above technical solution is adopted, the housing assembly includes a first sleeve and a second sleeve, and the first sleeve and the second sleeve are arranged sequentially from top to bottom. This can reduce the design and processing difficulty of the housing assembly, thereby reducing the production cost of the housing assembly.

[0017] In the preferred embodiment of the above-mentioned water curtain air purification device, the radial dimension of the first sleeve and / or the second sleeve gradually decreases from top to bottom.

[0018] With the above technical solution, the radial dimensions of the first sleeve and the second sleeve gradually decrease from top to bottom. This allows the water to flow along the inner wall of the gradually decreasing first sleeve when it flows downward, thus avoiding the situation where the water falls directly from the first shell to the bottom of the second shell, which would cause a loud water flow noise. This further reduces the water flow noise of the water curtain air purification device.

[0019] In the preferred embodiment of the above-mentioned water curtain air purification device, in the assembled state, the second air outlet is located below the first air outlet.

[0020] With the above technical solution, the second air outlet of the first sleeve is located below the first air outlet of the second sleeve. This way, when water flows out from the second air outlet of the first sleeve, it is located below the first air outlet of the second sleeve. This reduces the risk of water flowing to the outside of the second sleeve with the airflow, thereby reducing the risk of water entering the room with the airflow.

[0021] In the preferred technical solution of the above-mentioned water curtain air purification device, the first sleeve and the second sleeve are both stepped sleeves with alternating cylindrical and conical sections, and in the conical section, the diameter of the first sleeve and the second sleeve gradually decreases from top to bottom.

[0022] By adopting the above technical solution, both the first and second sleeves are designed as stepped sleeves, which further reduces the design and processing difficulty of the housing assembly, thereby further reducing the production cost of the housing assembly. Furthermore, since both the first and second sleeves are stepped sleeves with alternating cylindrical and conical sections, and the diameters of the first and second sleeves gradually decrease from top to bottom in the conical section, the noise level caused by water flowing down the inner walls of the first and second sleeves is reduced, thus further reducing the water flow noise of the water curtain air purification device.

[0023] In the preferred embodiment of the above-mentioned water curtain air purification device, the water curtain air purification device further includes a fan, which is disposed in the first sleeve. When the first sleeve is in the installation position, the fan is located above the water seal assembly, and the fan can blow air onto the water curtain sprayed by the water seal assembly.

[0024] When the above technical solution is adopted, the air pressure at the first air inlet is greater than the air pressure at the first air outlet when the fan rotates. This allows air to flow from above the water curtain to below the water curtain under the influence of the pressure difference.

[0025] Below the water curtain, the air is purified by a curtain of water. Furthermore, since the water seal assembly continuously sprays the curtain of water onto the inner wall of the sleeve, the air is purified by being intercepted as it passes through the water curtain, thus ensuring the purification efficiency of the water curtain air purifier. Additionally, the fan is located in the first sleeve and above the water seal assembly, which prevents water from entering the fan, thus ensuring its lifespan. Moreover, this arrangement simplifies the structure of the water curtain air purifier.

[0026] In the preferred embodiment of the above-mentioned water curtain air purification device, the water seal assembly includes:

[0027] A riser, disposed inside the housing assembly and coaxially arranged with the first sleeve and the second sleeve, extends downward from the upper end of the first sleeve to the bottom end of the second sleeve; and

[0028] A nozzle, which communicates with the top end of the riser; and

[0029] The pump has its outlet connected to the bottom end of the riser and its inlet connected to the water in the outer tank, so that the pump supplies water to the nozzle through the riser, and the nozzle can spray water onto the inner wall of the first sleeve to form a water curtain.

[0030] In the preferred embodiment of the above-mentioned water curtain air purification device, the flow guiding structure includes a flow guiding plate disposed on the outer wall of the riser, the flow guiding plate extending spirally downward from the top end of the riser to the bottom end of the riser.

[0031] When the above technical solution is adopted, the guide plate extends spirally downward from the top of the riser to the bottom of the riser, which increases the guiding distance of the guide plate and thus further reduces the noise of water flow in the water curtain air purification device.

[0032] In the preferred embodiment of the above-mentioned water curtain air purification device, the flow guiding structure further includes at least a partially inclined inner wall of the first sleeve and / or the second sleeve.

[0033] When the above technical solution is adopted, the flow guiding structure includes at least a partially inclined inner wall of the first sleeve and / or the second sleeve, which can reduce the volume of water impacting the water flow in the first sleeve and the second sleeve when the water flows down along the inner sidewalls of the first sleeve and the second sleeve, thereby further reducing the water flow noise of the water curtain air purification device.

[0034] In the preferred technical solution of the above-mentioned water curtain air purification device, the first sleeve includes a first cylindrical part and a first conical part from top to bottom, and the second sleeve includes a second cylindrical part, a second conical part, a third cylindrical part, a third conical part and a fourth cylindrical part from top to bottom. The taper of the first conical part is greater than that of the second conical part. In the assembled state, the outer side wall of the first conical part is sealed and engaged with the inner side wall of the second conical part.

[0035] When the above technical solution is adopted, the outer wall of the first conical part of the first sleeve and the second sleeve can be sealed and snapped with the inner wall of the second conical part when they are assembled. This can reduce the assembly difficulty of the first sleeve and the second sleeve while ensuring a sealed connection, thereby improving the assembly efficiency of the first sleeve and the second sleeve. Attached Figure Description

[0036] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which:

[0037] Figure 1 This is a half-sectional view along the axis of the housing assembly of the water curtain air purification device of this utility model.

[0038] Figure 2 This is an exploded schematic diagram of the water curtain air purification device of this utility model.

[0039] List of reference numerals in the attached diagram:

[0040] 100. Water curtain air purification device; 10. Outer tank; 101. Water inlet; 102. Water outlet; 1. Shell assembly; 11. First sleeve; 111. First air inlet; 112. Second air outlet; 113. First cylindrical part; 114. First conical part; 12. Second sleeve; 121. Second air inlet; 122. First air outlet; 123. Second cylindrical part; 124. Second conical part; 125. Third cylindrical part; 126. Third conical part; 127. Fourth cylindrical part; 2. Water seal assembly; 21. Nozzle; 22. Riser; 23. Pump; 3. Flow guiding structure; 31. Flow guide plate; 32. First conical wall; 33. Third conical wall; 4. Fan; 5. Sealing ring. Detailed Implementation

[0041] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0042] It should be noted that in the description of this utility model, terms such as "inner" and "outer," indicating directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. This is merely for ease of description and does not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] Figure 1 This is a half-sectional view along the axis of the housing assembly of the water curtain air purification device of this utility model. Figure 2 This is an exploded schematic diagram of the water curtain air purification device of this utility model.

[0045] To address the issue of excessive noise from water flow in existing water curtain air purification equipment.

[0046] like Figure 1 As shown, see also Figure 2 This utility model provides a water curtain air purification device 100, including an outer tank 10, a housing assembly 1, a water seal assembly 2, and a flow guiding structure 3. The housing assembly 1 is disposed in the outer tank 10 and includes a first air inlet 111. The outer side wall of the housing assembly 1 and the inner side wall of the outer tank 10 form an annular first air outlet 122, so that air can enter through the first air inlet 111 and flow out through the first air outlet 122. The water seal assembly 2 is partially located inside the housing assembly 1 and communicates with the water at the bottom of the water tank 10. The water seal assembly 2 is configured to spray a curtain of water onto the inner side wall of the housing assembly 1 and form a water seal with the inner side wall of the housing assembly 1. The flow guiding structure 3 is provided on the water seal assembly 2 and is configured to allow the water flowing down from the inner wall of the water seal assembly 2 and / or the shell assembly 1 to gradually flow to the bottom of the shell assembly under the guidance of the flow guiding structure 3 and finally flow into the water at the bottom of the outer barrel 10, so as to reduce the water flow noise in the water curtain air purification device 100 and thereby reduce the noise of the water curtain air purification device 100 from interfering with the surrounding environment.

[0047] It should be noted that, although the above combination Figure 1 The described flow guiding structure 3 is disposed on the water seal assembly 2, but this is not limiting. In other embodiments of this utility model, the flow guiding structure 3 may also be disposed on the inner wall of the housing assembly 1, but this is also not limiting. Those skilled in the art may also, as needed, dispose of the flow guiding structure 3 on both the inner walls of the water seal assembly 2 and the housing assembly 1, so that the flow guiding structure 3 can reduce the volume of water flow in the water curtain air purification device 100. Such adjustment does not deviate from the basic principle of this utility model, and therefore will also fall within the protection scope of this utility model.

[0048] Furthermore, although the outer tank described above contains water, this is not limiting. In specific implementations of this utility model, other liquid substances can also be contained in the water tank, as long as the liquid substance can purify the air and does not damage the water curtain air purification device 100.

[0049] As one possible implementation method, such as Figure 1 As shown, see also Figure 2 The housing assembly 1 includes a first sleeve 11 and a second sleeve 12. The first sleeve 11 is coaxially sleeved in the second sleeve 12, and the first sleeve 11 and the second sleeve 12 are detachably connected. Specifically, the first sleeve 11 includes a first air inlet 111 and a second air outlet 112. The first air inlet 111 is located at the top end of the first sleeve 11, and the second air outlet 112 is located at the bottom end of the first sleeve 11. The second sleeve 12 includes a second air inlet 121 and a first air outlet 122. The second air inlet 121 is located on the side wall of the second sleeve 12, and the first air outlet 122 is formed between the outer side wall of the second sleeve 12 and the inner side wall of the outer barrel 10.

[0050] It should be noted that, although the above combination Figure 1 The described housing assembly 1 includes a first sleeve 11 and a second sleeve 12, but this is not limiting. Those skilled in the art can also configure the housing assembly 1 to include an integrally formed third sleeve (not shown) so that the water sprayed by the water seal assembly 2 can flow downward along the inner sidewall of the third sleeve. However, this is also not limiting. Those skilled in the art can also configure the housing assembly 1 to be non-sleeve shaped. For example, as long as the curtain-like water sprayed by the water seal assembly 2 can form a liquid seal with the housing assembly 1, and the position of the liquid seal is between the first air inlet 111 and the first air outlet 122 of the housing assembly 1.

[0051] Furthermore, despite the above combination Figure 1 The first sleeve 11 and the second sleeve 12 described are both circular sleeves, but this is not limiting. In other embodiments of this utility model, the first sleeve 11 and the second sleeve 12 can also be square sleeves, or sleeves with polygonal inner walls, but this is also not limiting. Those skilled in the art can also set the first sleeve 11 and the second sleeve 12 as irregularly shaped sleeves as needed, as long as the curtain-like water sprayed by the water seal assembly 2 can form a liquid seal with the inner wall of the sleeve.

[0052] As one possible implementation method, such as Figure 1 As shown, see also Figure 2Both the first sleeve 11 and the second sleeve 12 are circular sleeves, and their radial dimensions gradually decrease from top to bottom. Specifically, the first sleeve 11 includes a first cylindrical portion 113 and a first conical portion 114 from top to bottom, and the second sleeve 12 includes a second cylindrical portion 123, a second conical portion 124, a third cylindrical portion 125, a third conical portion 126 and a fourth cylindrical portion 127 from top to bottom. The taper of the first conical portion 114 is greater than the taper of the second conical portion 124. In the assembled state, the outer wall of the first conical portion 124 is sealed and engaged with the second conical wall (not marked) of the second conical portion 124. More specifically, a sealing ring 5 is provided on the first conical portion of the first sleeve 11, and the sealing ring 5 is configured to abut against the second conical wall (unmarked) of the second conical portion 124 when the first sleeve 11 and the second sleeve 12 are in the assembled position, so that the first sleeve 11 can be sealed to the second sleeve 12 when the first sleeve 11 and the second sleeve 12 are in the installation position. This configuration reduces the risk of water flowing out between the first sleeve 11 and the second sleeve 12 to the outside of the water curtain air purifier 100. Furthermore, this configuration ensures that when the fan 4 is connected to the first air outlet 122, sealing the outer wall of the first sleeve 11 with the inner wall of the second sleeve 12 guarantees the air pressure difference between the first air inlet 111 and the first air outlet 122, thereby ensuring the purification efficiency of the water curtain air purifier 100.

[0053] By adopting the above-described configuration, the design and manufacturing difficulty of the housing assembly 1 can be reduced, thereby lowering the production cost of the housing assembly 1. Furthermore, the assembly efficiency of the first sleeve 11 and the second sleeve 12 can be improved. Moreover, since the radial dimensions of the first sleeve 11 and the second sleeve 12 gradually decrease from top to bottom, water can flow along the gradually decreasing inner wall of the first sleeve 11 when flowing downwards. This avoids water falling directly from the first housing to the bottom of the second housing, preventing loud water flow noise and further reducing the noise of water flow in the water curtain air purification device 100.

[0054] It should be noted that, although the above combination Figure 1The first sleeve 11 and the second sleeve 12 described are both stepped sleeves, but this is not limiting. In other embodiments of this utility model, the first sleeve 11 can be a conical sleeve with a radial dimension that gradually decreases from top to bottom. In this case, the second sleeve 12 can be a circular stepped sleeve with a radial dimension that gradually decreases from top to bottom. However, this is also not limiting. In other embodiments of this utility model, the first sleeve 11 can also be a stepped sleeve with a radial dimension that gradually decreases from top to bottom, and the second sleeve 12 can be a conical sleeve with a radial dimension that gradually decreases from top to bottom. However, this is also not limiting. In other embodiments of this utility model, the first sleeve 11 and the second sleeve 12 can also be conical sleeves with radial dimensions that gradually decrease from top to bottom.

[0055] As one possible implementation, such as Figure 1 As shown, when both the first sleeve 11 and the second sleeve 12 are in the installation position, the second air outlet 112 is located below the first air outlet 122. This way, when water flows out from the second air outlet 112 of the first sleeve 11, it is located below the first air outlet 122 of the second sleeve 12. This reduces the risk of water flowing to the outside of the second sleeve 12 with the flowing air, thereby reducing the risk of water entering the room with the flowing air.

[0056] As one possible implementation method, such as Figure 1 As shown, you can also see Figure 2 The water curtain air purification device 100 also includes a fan 4, which is disposed in the first sleeve 11. When the first sleeve 11 is in the installation position, the fan 4 is located above the water seal assembly 2, and the fan 4 can blow air onto the water sprayed by the water seal assembly 2. Specifically, the fan 4 is connected to the inner wall of the first sleeve 11 through a connecting arm (not labeled). With the above arrangement, when the fan 4 rotates, the air pressure at the first air inlet 111 is greater than the air pressure at the first air outlet 122, so that the air can flow from above the water curtain to below the water curtain under the action of pressure difference, thereby purifying the air with the water curtain. Moreover, since the water seal assembly 2 continuously sprays a curtain of water onto the inner wall of the sleeve, the air can be purified by being intercepted when passing through the water curtain, thereby ensuring the purification efficiency of the water curtain air purification device 100.

[0057] As one possible implementation method, such as Figure 1 As shown, see also Figure 2The water seal assembly 2 includes a riser 22, a nozzle 21, and a pump 23. The riser 22 is located inside the housing assembly 1 and is coaxially arranged with the first sleeve 11 and the second sleeve. The riser 22 extends downward from the upper end of the first sleeve 11 to the bottom end of the second sleeve 12. The nozzle 21 is connected to the top end of the riser 22. The outlet of the pump 23 is connected to the bottom end of the riser 22, and the inlet of the pump 23 is connected to the water in the water tank 10. This allows the pump 23 to supply water to the nozzle 21 through the riser 22, so that the nozzle 21 can spray water onto the inner wall of the first sleeve 11 to form a water curtain. The water curtain can block the channel formed between the nozzle 21 and the inner wall of the first sleeve 11, thus creating a water seal effect between the water curtain sprayed by the nozzle 21 and the inner wall of the first sleeve 11, thereby purifying the air flowing through the first air inlet 111.

[0058] As one possible implementation method, such as Figure 1 As shown, see also Figure 2 The flow guiding structure 3 is a flow guiding plate 31 disposed on the outer wall of the riser 22. The flow guiding plate 31 extends spirally downward from the top end of the riser 22 to the bottom end of the riser 22. Through the above arrangement, the flow guiding distance of the flow guiding plate 31 can be increased, thereby further reducing the noise of the water flow in the water curtain air purification device 100. Specifically, in the specific implementation of this utility model, the riser 22 is made of rigid material so that the flow guiding plate 31 can be stably fixed to the outer wall of the riser 22.

[0059] It should be noted that, although the above combination Figure 1 The riser 22 described is made of a rigid material, but this is not limiting. In other embodiments of this utility model, the riser 22 may also be made of a soft material. This adjustment does not deviate from the principle of this utility model, as long as the guide plate 31 can be installed on the outer side wall of the riser 22.

[0060] As one possible implementation method, such as Figure 1 As shown, see also Figure 2The flow guiding structure 3 also includes the inner walls of the first sleeve 11 and the second sleeve 12, which are at least partially inclined. Specifically, the flow guiding structure 3 also includes the first conical wall 32 of the first conical portion 114 and the third conical wall 33 of the third conical portion 126. In this way, as the water flows downward along the inner wall of the first sleeve 11, it can adhere to the inner wall of the first sleeve 11 as much as possible under the action of the first conical wall 32, so that the water can flow slowly downward along the inner wall of the first sleeve 11. This reduces the risk of the water falling downward from the inner wall of the first sleeve 11, thereby reducing the water flow noise of the water curtain air purification device 100. Similarly, when water flows out of the first sleeve 11 and into the second sleeve 12 and flows downward along the inner wall of the second sleeve 12, the water flowing downward along the inner wall of the second sleeve 12 can adhere to the inner wall of the second sleeve 12 as much as possible under the action of the third conical wall 33. This allows the water to flow slowly downward along the inner wall of the second sleeve 12, which reduces the risk of the water falling freely downward from the inner wall of the second sleeve 12, thereby reducing the water flow noise of the water curtain air purification device 100.

[0061] Preferably, the outer diameter of the guide plate 31 is equal to the inner diameter of the second air outlet 112, or the outer diameter of the guide plate 31 is smaller than the inner diameter of the second air outlet 112 and the difference between the two is less than a preset first difference threshold, so that the water flowing down along the inner wall of the first sleeve 11 can flow onto the guide plate 31 as much as possible when it flows out of the second air outlet 112, and flow to the bottom of the second sleeve 12 under the guidance of the guide plate 31, thereby further reducing the volume of the water flow in the water curtain air purification device 100.

[0062] It should be noted that the first difference threshold can be determined by the designer based on experience, experiments, calculations, etc. For example, the value of the first difference threshold can be set to 0.5m, 1mm or 1.5mm. In this way, when water flows along the inner wall of the first sleeve 11 and flows out from the second air outlet 112, the risk of water dripping from the gap between the guide plate 31 and the second air outlet 112 to the bottom of the second sleeve 12 can be reduced.

[0063] Preferably, in a specific implementation of this utility model, when the second sleeve 12 is a stepped sleeve, the inner diameter of the fourth cylindrical portion 127 of the second sleeve 12 can be set to be equal to or slightly larger than the outer diameter of the guide plate 31, and the difference between the two diameters is less than a preset second difference threshold, so as to reduce the risk of water dripping from the gap between the guide plate 31 and the inner wall of the second sleeve 12 to the bottom of the second sleeve 12, so as to further reduce the noise of the water flow in the water curtain air purification device 100.

[0064] Preferably, in a specific implementation of this utility model, the outer tub 10 further includes an inlet 101 and an outlet 102. The outer tub 10 is connected to a water source through the inlet 101; the outer tub 10 is connected to the outside of the water curtain air purification device 100 through the outlet 102, so that the outer tub 10 can discharge water through the outlet 102.

[0065] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A water curtain air purification device (100), characterized in that, The water curtain air purification device (100) includes: Outer barrel (10); A housing assembly (1) is disposed in the outer barrel (10) and includes a first air inlet (111), wherein the outer side wall of the housing assembly (1) and the inner side wall of the outer barrel (10) form an annular first air outlet (122); A water seal assembly (2), partially located inside the housing assembly (1) and in communication with water at the bottom of the outer barrel (10), is configured to spray a curtain of water onto the inner wall of the housing assembly (1) and form a water seal with the inner wall of the housing assembly (1); and A flow guiding structure (3), which is located on the inner wall of the housing assembly (1) and / or the water seal assembly (2), is configured to guide water flowing down along the inner wall of the housing assembly (1) and / or the water seal assembly (2) to the bottom of the housing assembly (1) to reduce water flow noise in the air purification device (100).

2. The water curtain air purification device (100) according to claim 1, characterized in that, The housing assembly (1) includes: A first sleeve (11) includes a first air inlet (111) and a second air outlet (112), wherein the first air inlet (111) is located at the top end of the first sleeve (11), and the second air outlet (112) is located at the bottom end of the first sleeve (11); and The second sleeve (12) includes a second air inlet (121) and a first air outlet (122). The second air inlet (121) is located on the side wall of the second sleeve (12), and the first air outlet (122) is formed between the outer side wall of the second sleeve (12) and the inner side wall of the outer barrel (10). The first sleeve (11) is coaxially sleeved in the second sleeve (12), and the first sleeve (11) and the second sleeve (12) are detachably connected.

3. The water curtain air purification device (100) according to claim 2, characterized in that, The radial dimensions of the first sleeve (11) and / or the second sleeve (12) gradually decrease from top to bottom.

4. The water curtain air purification device (100) according to claim 2, characterized in that, In the assembled state, the second air outlet (112) is located below the second air inlet (121).

5. The water curtain air purification device according to claim 2, characterized in that, The first sleeve (11) and the second sleeve (12) are both stepped sleeves with alternating cylindrical and conical sections, and in the conical section, the diameters of the first sleeve (11) and the second sleeve (12) gradually decrease from top to bottom.

6. The water curtain air purification device (100) according to claim 2, characterized in that, The water curtain air purification device (100) also includes a fan (4), which is disposed in the first sleeve (11). When the first sleeve (11) is in the installation position, the fan (4) is located above the water seal assembly (2), and the fan (4) can blow air onto the water curtain sprayed by the water seal assembly (2).

7. The water curtain air purification device (100) according to claim 2, characterized in that, The water seal assembly (2) includes: A riser (22) is disposed inside the housing assembly (1) and is coaxially arranged with the first sleeve (11) and the second sleeve (12). The riser (22) extends downward from the upper end of the first sleeve (11) to the bottom end of the second sleeve (12). Nozzle (21), which communicates with the top end of the riser (22); and The pump (23) has its outlet connected to the bottom end of the riser (22) and its inlet connected to the water in the outer barrel (10), so that the pump (23) supplies water to the nozzle (21) through the riser (22) so that the nozzle (21) can spray water onto the inner wall of the first sleeve (11) to form a water curtain.

8. The water curtain air purification device (100) according to claim 7, characterized in that, The flow guiding structure (3) includes a flow guiding plate (31) disposed on the outer wall of the riser (22), the flow guiding plate (31) extending spirally downward from the top end of the riser (22) to the bottom end of the riser (22).

9. The water curtain air purification device (100) according to claim 8, characterized in that, The flow guiding structure (3) also includes at least a partially inclined inner wall of the first sleeve (11) and / or the second sleeve (12).

10. The water curtain air purification device (100) according to claim 5, characterized in that, The first sleeve (11) includes a first cylindrical part (113) and a first conical part (114) from top to bottom. The second sleeve (12) includes a second cylindrical part (123), a second conical part (124), a third cylindrical part (125), a third conical part (126) and a fourth cylindrical part (127) from top to bottom. The taper of the first conical part (114) is greater than that of the second conical part (124). In the assembled state, the outer side wall of the first conical part (114) is sealed and engaged with the inner side wall of the second conical part (124).

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