Bubble generator and gas water heater

Abstract

This utility model belongs to the field of bubble generation technology, specifically disclosing an aerator and a gas water heater. The aerator also includes a breaking component, which is disposed on the aerator body and located on the side of the gradually expanding section away from the aerator inlet. The breaking component includes a first cylinder and multiple blade groups disposed on the inner wall of the first cylinder. The multiple blade groups are distributed at intervals around the central axis of the first cylinder. Each blade group includes two adjacent blades. Among the two blades in the same group, at least one blade is inclined relative to the central axis. The first end of the blade is fixedly connected to the inner wall of the first cylinder, and the second ends of the two blades in the same group are connected to each other. This effectively solves the problem of poor water flow in existing aerators, so that the aerator can have a more stable bubble breaking effect while making the water flow of the aerator smoother.

Description

Technical Field

[0001] This utility model relates to the field of bubble generation technology, and in particular to an aerator and a gas water heater. Background Technology

[0002] When water contains a large number of air bubbles, the water can carry the air bubbles to the surface to be cleaned, causing some of the air bubbles to break up near the surface and generate a certain impact force, thus cleaning the surface more efficiently.

[0003] The smaller the diameter of the bubbles in the water, the longer the bubbles can stay in the water, the greater the number of bubbles that can remain intact before reaching the surface to be cleaned, and the greater the energy generated when a single bubble breaks. Therefore, water containing bubbles is more efficient at cleaning surfaces.

[0004] Aerators in related technologies typically include a breaking component, which comprises a cylinder and multiple blades disposed within the cylinder. Bubbles are broken up by water carrying them and impacting the blades. To improve the structural stability of the blades under water flow impact and ensure a stable bubble-breaking effect, the breaking component usually includes a central shaft coaxial with the cylinder. The two ends of each blade are connected to the central shaft and the cylinder, respectively, thus minimizing vibration of the blades when impacted by the water flow.

[0005] However, with this setup, the intermediate shaft occupies a large amount of space inside the cylinder, resulting in a smaller flow path of water within the crushing parts and greater resistance to water flow through the crushing parts. Consequently, the water output from the aerator is less smooth. Utility Model Content

[0006] One of the technical problems solved by this utility model is to provide an aerator that can effectively solve the problem of poor water flow of existing aerators, so as to make the aerator more stable in breaking up bubbles and make the water flow of the aerator smoother.

[0007] The second technical problem solved by this utility model is to provide a gas water heater that can effectively solve the problem of poor water flow in gas water heaters, including those with aerators.

[0008] The first technical problem mentioned above is solved by the following technical solution:

[0009] A bubbler includes a bubbler body having opposing bubble inlet and bubble outlet ends. The bubbler body also includes a Venturi channel comprising a tapering section and a expanding section sequentially connected along the direction from the bubble inlet to the bubble outlet. The bubbler further includes:

[0010] A crushing component is disposed on the foaming body and located on the side of the gradually expanding section away from the foaming water inlet. The crushing component includes a first cylinder and a plurality of blade groups disposed on the inner wall of the first cylinder. The plurality of blade groups are distributed at intervals around the central axis of the first cylinder. Each blade group includes two adjacent blades. Among the two blades in the same group, at least one blade is inclined relative to the central axis. The first end of the blade is fixedly connected to the inner wall of the first cylinder, and the second ends of the two blades in the same group are connected to each other.

[0011] The aerator described in this utility model has the following advantages compared with the prior art:

[0012] By incorporating a Venturi channel into the bubbler body, the flow rate of water can be accelerated and the pressure reduced through a converging section where the orifice diameter gradually decreases from the bubbler inlet to the bubbler outlet. This releases dissolved air in the water, forming bubbles. As the water moves from the converging section to the expanding section, the flow rate gradually decreases and the pressure gradually increases because the orifice diameter gradually increases from the bubbler inlet to the bubbler outlet. At this point, the released air can be compressed by the water, shearing and breaking the bubbles into smaller bubbles.

[0013] Furthermore, by including multiple blade groups in the crushing component, with the first end of the blade connected to the inner wall of the first cylinder and the second end of the blade connected to the second end of another blade in the same group, on the one hand, the water bubbles flowing out from the diffuser section can impact the blades to break the bubbles carried in the water; on the other hand, the two blades in the same group can be connected to the first cylinder to form a shape with better structural stability, thereby effectively improving the structural stability of the blades and effectively reducing the vibration generated by the blades during use, making the crushing effect of the crushing component on the bubbles more stable.

[0014] Furthermore, by setting at least one of the two blades in the same group to be inclined relative to the central axis, on the one hand, the effective connection area between the inclined blade and the first cylinder is larger than that between the blade and the first cylinder, in other words, the connection stability between at least one of the two blades in the same group and the first cylinder is better, thereby improving the structural stability of the overall structure formed by the connection between the two blades in the same group and the first cylinder. On the other hand, by tilting the blades, the water flow can be guided to spiral flow within the crusher, thereby gaining greater kinetic energy under the action of centrifugal force, which can compensate for the kinetic energy loss caused by the water impacting the connecting beam and blades, and prevent the water from decelerating too quickly when flowing through the crusher, thus making the water discharge from the crusher smoother.

[0015] Furthermore, by distributing multiple blade groups at intervals, in other words, by spacing the blades apart from other different groups of blades, a space for water flow can be formed between each blade group, thereby reducing the resistance encountered by the water flow within the crushing component and making the water output of the aerator smoother.

[0016] In one embodiment, the crushing component further includes a connecting beam, the two ends of which are respectively connected to the second ends of the two blades in the same group, and the sidewall of the connecting beam is a plane parallel to the central axis.

[0017] In one embodiment, the blade, which is inclined relative to the central axis, has an inclined surface having a first edge and a second edge opposite each other along the extension direction of the central axis, and the projections of the first edge and the second edge onto a plane perpendicular to the central axis along the extension direction of the central axis form an angle θ, where 15°≤θ≤45°.

[0018] In one embodiment, for all blades that are tilted relative to the central axis, the tilting direction of the blades is consistent.

[0019] In one embodiment, for all blades that are tilted relative to the central axis, the first end and the second end are twisted relative to each other so that the two sides of the blade along its own thickness direction are formed as torsional curved surfaces.

[0020] In one embodiment, of the two blades in the same group, one is a first blade and the other is a second blade. The first blade is parallel to the central axis, and the second blade is inclined relative to the central axis.

[0021] In one embodiment, the first blade and the second blade are arranged alternately along the direction surrounding the central axis.

[0022] In one embodiment, the blade has a thickness d, which gradually decreases from one end connected to the first cylinder towards the end adjacent to the central axis.

[0023] In one embodiment, the breaker includes a flow channel formed between any two adjacent blades, the aerator includes a plurality of the breakers, the plurality of the breakers are arranged sequentially in the direction from the aeration inlet to the aeration outlet, and in any two adjacent breakers, any flow channel of one of the breakers is connected to at least one flow channel of the other breaker.

[0024] In one embodiment, the foaming body further includes an integrally formed second cylinder and a foaming part. The second cylinder has a foaming inlet end and a foaming outlet end. The foaming part is disposed in the second cylinder on the side close to the foaming inlet end. The foaming part is provided with the Venturi channel. The second cylinder has a receiving cavity located on the side of the foaming part away from the foaming inlet end. The Venturi channel communicates with the receiving cavity. The broken piece is disposed in the receiving cavity.

[0025] The second technical problem mentioned above is solved by the following technical solution:

[0026] A gas water heater includes a combustion heat exchange device, an inlet pipe, an outlet pipe, and an aerator as described in the foregoing technical solution. The inlet pipe, the combustion heat exchange device, and the outlet pipe are connected in series, and the aerator is connected in series with either the inlet pipe or the outlet pipe.

[0027] The gas water heater described in this utility model has the following advantages compared with the prior art:

[0028] By setting up the aforementioned aerator, water carrying a larger quantity of smaller diameter bubbles can be output, enabling more efficient cleaning of the surface to be cleaned. Attached Figure Description

[0029] Figure 1 This is a three-dimensional structural schematic diagram of the bubbler provided in an embodiment of the present utility model;

[0030] Figure 2 for Figure 1 A cross-sectional view of the bubbler shown in the diagram;

[0031] Figure 3 for Figure 2 An exploded view of the bubbler shown in the diagram;

[0032] Figure 4 This is a three-dimensional structural schematic diagram of the crushing component provided in an embodiment of the present utility model;

[0033] Figure 5 A schematic projection of the crushing component (both blades in the same group are inclined relative to the central axis) provided in an embodiment of this utility model along the extension direction of the central axis;

[0034] Figure 6 A schematic projection of the extension direction of the crushing component (one of the two blades in the same group is parallel to the central axis) provided in the embodiment of this utility model along the central axis;

[0035] Figure 7 This is a structural schematic diagram of a gas water heater provided in an embodiment of the present utility model;

[0036] Label Explanation:

[0037] 100. Aerator;

[0038] 1. Bubble generator body; 11. Second cylinder; 110. Bubble generator inlet; 111. Bubble generator outlet; 112. Receiving cavity; 12. Bubble generator section; 120. Venturi channel; 1201. Gradual narrowing section; 1202. Gradual widening section;

[0039] 2. Crushing component; 21. First cylinder; 210. Central axis; 22. Blade; 22a. First end; 22b. Second end; 220. Inclined surface; 2201. First edge; 2202. Second edge; 221. First blade; 222. Second blade; 23. Connecting beam; 24. Flow channel;

[0040] 200. Combustion heat exchange device;

[0041] 300. Water inlet pipe;

[0042] 400. Water outlet pipe. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0044] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0046] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0047] like Figures 1 to 4 As shown, this embodiment provides a foamer 100, including a foaming body 1. The foaming body 1 has a foaming inlet end 110 and a foaming outlet end 111. The foaming body 1 is also provided with a Venturi channel 120. The Venturi channel 120 includes a tapering section 1201 and a expanding section 1202 that are sequentially connected along the direction from the foaming inlet end 110 to the foaming outlet end 111. Furthermore, the aerator 100 also includes a breaker 2, which is disposed on the aerator body 1 and located on the side of the gradually expanding section 1202 away from the aerator inlet 110. The breaker 2 includes a first cylinder 21 and multiple blade groups disposed on the inner wall of the first cylinder 21. The multiple blade groups are distributed at intervals around the central axis 210 of the first cylinder 21. Each blade group includes two adjacent blades 22. Among the two blades 22 in the same group, at least one blade 22 is inclined relative to the central axis 210. The first end 22a of the blade 22 is fixedly connected to the inner wall of the first cylinder 21, and the second ends 22b of the two blades 22 in the same group are connected to each other.

[0048] By providing a Venturi channel 120 to the foaming body 1, the flow rate of water can be accelerated and the pressure of water can be reduced by the gradually decreasing aperture section 1201 from the foaming inlet end 110 to the foaming outlet end 111. As a result, the air originally dissolved in the water will be released to form bubbles. When the water enters the expanding section 1202 from the narrowing section 1201, the flow rate of water gradually slows down and the pressure gradually increases because the aperture of the expanding section 1202 gradually increases from the foaming inlet end 110 to the foaming outlet end 111. At this time, the released air can be squeezed by the water to shear and break the bubbles into smaller bubbles.

[0049] Furthermore, by including multiple blade groups in the crushing component 2, and connecting the first end 22a of the blade 22 to the inner wall of the first cylinder 21, and connecting the second end 22b of the blade 22 to the second end 22b of another blade 22 in the same group, on the one hand, the bubble water flowing out from the diffuser section 1202 can impact the blade 22 and the connecting beam 23 to break the bubbles carried in the water; on the other hand, the two blades 22 in the same group can be connected to form a shape with better structural stability by connecting the two blades 22 in the same group to the first cylinder 21, thereby effectively improving the structural stability of the blade 22 and effectively reducing the vibration generated by the blade 22 during use, making the crushing effect of the crushing component 2 on the bubbles more stable.

[0050] Furthermore, by tilting at least one of the two blades 22 in the same group relative to the central axis 210, on the one hand, the effective connection area between the tilted blade 22 and the first cylinder 21 is larger than that between the blade 22 parallel to the central axis 210. In other words, the connection stability between at least one of the two blades 22 in the same group and the first cylinder 21 is better, thereby improving the structural stability of the overall structure formed by the connection between the two blades 22 in the same group and the first cylinder 21. On the other hand, by tilting the blades 22, the water flow can be guided to spiral flow within the crusher 2, thereby gaining greater kinetic energy under the action of centrifugal force. This can compensate for the kinetic energy loss caused by the water impacting the blades 22, preventing the water from slowing down too much when flowing through the crusher 2, and thus making the water discharge from the crusher 2 smoother.

[0051] Furthermore, by setting at least one blade 22 in a blade group to be inclined relative to the central axis 210, when water flows from the expanding section 1202 toward the blade 22 in a general direction of extension of the central axis 210, the effective surface area on the blade 22 that can be impacted by water is increased, thereby improving the breaking efficiency of air bubbles carried in the water when it impacts the blade 22.

[0052] Furthermore, by distributing multiple blade groups at intervals, in other words, by spacing the blades 22 from each other, a space for water flow can be formed between the blade groups, thereby reducing the resistance encountered by the water flow within the crusher 2 and making the water output of the aerator 100 smoother.

[0053] In one embodiment, the crushing component 2 further includes a connecting beam 23. The two ends of the connecting beam 23 are respectively connected to the second ends 22b of two blades 22 in the same group. The sidewall of the connecting beam 23 is a plane parallel to the central axis 210. Since the connecting beam 23 connects the two blades 22 in the same group that are spaced apart through its two ends, the force exerted on the connecting beam 23 when the two blades 22 vibrate is mainly the force along the relative direction of the two ends of the connecting beam 23. Therefore, the connecting beam 23 needs to have good structural stability along the relative direction of its two ends, while the structural stability requirements of the connecting beam 23 in other directions are not high. Therefore, the connecting beam 23 can have a small thickness dimension so that the structure of the connecting beam 23 can effectively improve the structural stability of the blades 22 while reducing the space occupied by the connecting beam 23 in the first cylinder 21, so that the flow path of water in the crushing component 2 is larger. At the same time, the sidewall of the connecting beam 23 is a plane parallel to the central axis 210 so that the resistance encountered by the water flow through the crushing component 2 is smaller, thereby making the water output of the aerator 100 smoother.

[0054] In one embodiment, two blades 22 in the same group are connected at one end of the central axis 210 by a connecting beam 23. The connecting beam 23 can support the blade 22 from the end of the blade 22 near the central axis 210, so as to effectively reduce the vibration generated at the end of the blade 22 near the central axis 210 when the blade 22 is impacted by water flow. Since the end of the blade 22 away from the central axis 21 is connected to the first cylinder 21, in other words, the end of the blade 22 away from the central axis 21 can be supported by the first cylinder 21, so as to effectively reduce the vibration generated at the end of the blade 22 away from the central axis 210 when the blade 22 is impacted by water flow. Therefore, with this arrangement, the connecting beam 23 and the first cylinder 21 can be used to support both ends of the blade 22 respectively, so as to more effectively reduce the vibration generated by the blade 22 as a whole when the blade 22 is impacted by water flow.

[0055] In one embodiment, multiple connecting beams 23 may be connected between two blades 22 in the same group. The multiple connecting beams 23 are distributed at intervals, thereby increasing the number of connecting beams 23 connecting the two blades 22 in the same group to further improve the structural stability of the blades 22 during use.

[0056] Please combine Figure 5As shown, the blade 22, which is inclined relative to the central axis 210, has an inclined surface 220. The inclined surface 220 has a first edge 2201 and a second edge 2202 that are opposite each other along the extension direction of the central axis 210. Along the extension direction of the central axis 210, the projections of the first edge 2201 and the second edge 2202 onto a plane perpendicular to the central axis 210 form an angle θ. The larger the angle θ, the greater the inclination of the blade 22 relative to the central axis 210, the larger the effective connection area between the blade 22 and the first cylinder 21, the better the structural stability of the blade 22, and the larger the surface area of ​​the blade 22 that can be impacted when water impacts it along the extension direction of the central axis 210, thus increasing the amount of water carried by the water flow. The higher the bubble breaking efficiency, the greater the inclination of the blade 22 relative to the central axis 210, the longer the path of water through the breaking member 2 along the surface of the blade 22. As a result, the time it takes for water to pass through the breaking member 2 is too long. During this process, the probability of microbubbles merging and defoaming is greater. Therefore, the included angle θ cannot be too large. Based on this, in one embodiment, the included angle θ formed by the projections of the first edge 2201 and the second edge 2202 onto the plane perpendicular to the central axis 210 can satisfy: 15°≤θ≤45°. For example, the included angle θ can be 15°, 18°, 20°, 22°, 25°, 28°, 30°, 32°, 35°, 38°, 40°, 42° or 45°, etc.

[0057] In one embodiment, for all blades 22 that are inclined relative to the central axis 210, the inclination direction of the blades 22 is consistent. That is, along the extension direction of the central axis 210, the second edge 2202 is located on the side of the first edge 2201 away from the water inlet end of the bubble. Along the direction surrounding the central axis 210, the second edge 2202 of any blade 22 is located on the same side of the first edge 2201. Thus, all blades 22 that are inclined relative to the central axis 210 are inclined in the same direction surrounding the central axis 210. This allows all blades 22 that are inclined relative to the central axis 210 to be used to guide the water flow in the same spiral direction, so that the overall flow of the water flowing through the breaker 2 is smoother.

[0058] In one embodiment, the two blades 22 in the same group can both be inclined relative to the central axis 210, and the included angle θ of the two blades 22 can be the same or different. In other words, the degree of inclination of the two blades 22 in the same group relative to the central axis 210 can be the same or different. When all the blades 22 inclined relative to the central axis 210 have the same included angle θ, all the blades 22 have the same swirling and guiding effect on the water flow and the same guiding direction, which can further reduce the change of the swirling direction of the water flow and thus avoid additional kinetic energy loss.

[0059] In one embodiment, for all blades 22 that are inclined relative to the central axis 210, the first end 22a and the second end 22b are twisted relative to each other, so that the two sides of the blade 22 along its own thickness direction are formed as twisted curved surfaces, thereby making the side shape of the blade 22 more suitable for guiding the water flow to generate swirling flow, and the additional kinetic energy loss is less when the water flows in a swirling motion.

[0060] like Figure 3 and Figure 6 As shown, in one embodiment, of the two blades 22 in the same group, one is a first blade 221 and the other is a second blade 222. The first blade 221 is parallel to the central axis 210, and the second blade 222 is inclined relative to the central axis 210. Since one blade 22 is parallel to the central axis 210, the flow path of the flow channel 24 formed between the two blades 22 in the same group gradually increases from the aerating inlet end 110 to the aerating outlet end 111, thus achieving the same function as the diffuser section 1202, allowing the water flow to... The flow rate is accelerated, while the pressure of the water flow is reduced, and the dissolved air in the water is further released to form bubbles. Alternatively, the flow path of the flow channel 24 formed between the two blades 22 in the same group gradually decreases in the direction from the bubble inlet end 110 to the bubble outlet end 111, so as to play the same role as the tapered section 1201, that is, to squeeze the bubbles carried in the water to shear and break the bubbles into smaller diameter bubbles, so that the water flow includes a larger amount of bubbles after passing through the breaking member 2, and includes more micro bubbles.

[0061] Furthermore, when the inclined surface 220 of the blade 22, which is inclined relative to the central axis 210, faces the adjacent blade 22 parallel to the central axis 210, the water impacting the inclined surface 220 can be reflected by the reaction force of the inclined surface 220 to the surface of the blade 22 that impacts the blade 22 parallel to the central axis 210. In other words, some of the bubble water can impact the surface of the blade 22 at least twice within the breaker 2. During the impact, the bubbles carried in the water will be further broken, and the bubble breaking efficiency of the breaker 2 is higher.

[0062] In one embodiment, the first blade 221 and the second blade 222 are arranged alternately along the direction surrounding the central axis 210, so that the shearing and breaking action of each blade group on the air bubbles carried in the water and the spiral guiding action on the water flow are more consistent, so that the breaking component 2 can shear and break the air bubbles carried in the water flow more evenly, and the flow state of the water flow at different positions is also more balanced.

[0063] Please see again. Figures 3 to 5In one embodiment, each blade 22 is spaced apart from other blades 22 in different groups, so that water can flow between each blade 22 and other blades 22 in different groups, and the resistance encountered by the water flow through the breaker 2 is smaller, and the water output of the aerator 100 can be smoother.

[0064] In one embodiment, the blade 22 has a thickness d, which gradually decreases from the end connected to the first cylinder 21 towards the end near the central axis 210. As a result, the structural stability of the part of the blade 22 closer to the first cylinder 21 is better, and the space occupied by the part of the blade 22 closer to the central axis 210 is smaller, making it less likely to interfere with the structure of other adjacent blades 22. In other words, this arrangement can make the structural stability of the blade 22 better, while making the structure of the blade 22 more compact and reasonable within the limited space.

[0065] In one embodiment, the breaker 2 includes a flow channel 24 formed between any two adjacent blades 22. The aerator 100 includes a plurality of breakers 2, which are arranged sequentially from the aerator inlet 110 to the aerator outlet 111. In any two adjacent breakers 2, any flow channel 24 of one breaker 2 is connected to at least one flow channel 24 of the other breaker 2. By increasing the number of breakers 2, the number of times water impacts the blades 22 and the connecting beam 23 can be further increased, thereby further increasing the number of small-diameter bubbles carried by the water and further reducing the diameter of the bubbles carried by the water.

[0066] In one embodiment, in two adjacent crushing components 2, any one flow channel 24 of one crushing component 2 can be connected to both flow channels 24 of the other crushing component 2 at the same time. So when water flows out of the flow channel 24 of one crushing component 2 and enters the two flow channels 24 of the other crushing component 2, the water flow can also impact the end face of the blade 22 between the two flow channels 24, so as to further improve the cutting efficiency of the crushing component 2 for air bubbles and reduce the diameter of the air bubbles carried by the water.

[0067] In one embodiment, all the blades 22 of the breakers 2, which are inclined relative to the central axis 210, are in the same direction of inclination, so that when water flows in the flow channels 24 of the different breakers 2, they all form swirling currents rotating in the same way, without any change in the direction of the swirling currents, thereby avoiding additional kinetic energy loss.

[0068] In one embodiment, the foaming body 1 further includes an integrally formed second cylinder 11 and a foaming part 12. The second cylinder 11 has a foaming inlet end 110 and a foaming outlet end 111. The foaming part 12 is disposed inside the second cylinder 11 on the side close to the foaming inlet end 110. The foaming part 12 is provided with a Venturi channel 120. The second cylinder 11 has a receiving cavity 112 located on the side of the foaming part 12 away from the foaming inlet end 110. The Venturi channel 120 communicates with the receiving cavity 112. The broken piece 2 is disposed in the receiving cavity 112. Thus, the position of the broken piece 2 can be restricted by the foaming body 1. On the one hand, the relative positional accuracy between the flow channel 24 of the broken piece 2 and the Venturi channel 120 of the foaming body 1 is more likely to meet the design requirements. On the other hand, there is no need to set up an additional structure to fix the foaming body 1 and the broken piece 2, which can make the structure of the foamer 100 simpler.

[0069] like Figure 7 As shown, this embodiment provides a gas water heater, including a combustion heat exchange device 200, a water inlet pipe 300, a water outlet pipe 400, and an aerator 100 as described in the aforementioned technical solution. The water inlet pipe 300, the combustion heat exchange device 200, and the water outlet pipe 400 are connected in series. The aerator 100 is connected in series with either the water inlet pipe 300 or the water outlet pipe 400. Since the water outlet of the aerator 100 is smoother and has a higher efficiency in breaking up air bubbles, the water outlet of the gas water heater is smoother. Furthermore, the gas water heater can output water carrying a large number of smaller diameter air bubbles, which can be used to clean surfaces more efficiently.

[0070] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0071] The specific embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A foaming device, comprising a foaming body (1), the foaming body (1) having opposing foaming inlet end (110) and foaming outlet end (111), the foaming body (1) further comprising a Venturi channel (120), the Venturi channel (120) comprising a tapering section (1201) and a expanding section (1202) sequentially connected along the direction from the foaming inlet end (110) to the foaming outlet end (111), characterized in that, The bubbler (100) also includes: The crushing component (2) is disposed on the foaming body (1) and located on the side of the gradually expanding section (1202) away from the foaming water inlet (110). The crushing component (2) includes a first cylinder (21) and a plurality of blade groups disposed on the inner wall of the first cylinder (21). The plurality of blade groups are distributed at intervals around the central axis (210) of the first cylinder (21). Each blade group includes two adjacent blades (22). Among the two blades (22) in the same group, at least one blade (22) is inclined relative to the central axis (210). The first end (22a) of the blade (22) is fixedly connected to the inner wall of the first cylinder (21), and the second ends (22b) of the two blades (22) in the same group are connected to each other.

2. The aerator according to claim 1, characterized in that, The crushing component (2) also includes a connecting beam (23), the two ends of which are respectively connected to the second ends (22b) of the two blades (22) in the same group, and the sidewall of the connecting beam (23) is a plane parallel to the central axis (210).

3. The aerator according to claim 1, characterized in that, The blade (22), which is inclined relative to the central axis (210), has an inclined surface (220) having a first edge (2201) and a second edge (2202) opposite each other along the extension direction of the central axis (210), and the projections of the first edge (2201) and the second edge (2202) onto a plane perpendicular to the central axis (210) along the extension direction of the central axis (210) form an angle θ, where 15°≤θ≤45°.

4. The bubbler according to claim 1, characterized in that, For all blades (22) that are tilted relative to the central axis (210), the tilting direction of the blades (22) is the same.

5. The bubbler according to any one of claims 1-4, characterized in that, For all blades (22) that are inclined relative to the central axis (210), the first end (22a) and the second end (22b) are twisted relative to each other so that the two sides of the blade (22) along its own thickness direction are formed as twisted curved surfaces.

6. The bubbler according to any one of claims 1-4, characterized in that, Of the two blades (22) in the same group, one is the first blade (221) and the other is the second blade (222). The first blade (221) is parallel to the central axis (210), and the second blade (222) is inclined relative to the central axis (210).

7. The bubbler according to claim 6, characterized in that, Along the direction surrounding the central axis (210), the first blade (221) and the second blade (222) are arranged alternately.

8. The bubbler according to any one of claims 1-4, characterized in that, The blade (22) has a thickness d, which gradually decreases from one end connected to the first cylinder (21) toward the end near the central axis (210).

9. The bubbler according to any one of claims 1-4, characterized in that, The breaker (2) includes a flow channel (24) formed between any two adjacent blades (22). The aerator (100) includes a plurality of the breakers (2). The plurality of breakers (2) are arranged sequentially from the aerator inlet (110) to the aerator outlet (111). In any two adjacent breakers (2), any one of the flow channels (24) of one breaker (2) is connected to at least one of the flow channels (24) of the other breaker (2).

10. The bubbler according to any one of claims 1-4, characterized in that, The foaming body (1) further includes an integrally formed second cylinder (11) and a foaming part (12). The second cylinder (11) has the foaming water inlet end (110) and the foaming water outlet end (111). The foaming part (12) is disposed in the second cylinder (11) on the side close to the foaming water inlet end (110). The foaming part (12) is provided with the Venturi channel (120). The second cylinder (11) has a receiving cavity (112) located on the side of the foaming part (12) away from the foaming water inlet end (110). The Venturi channel (120) communicates with the receiving cavity (112). The broken piece (2) is disposed in the receiving cavity (112).

11. A gas water heater, characterized in that, It includes a combustion heat exchange device (200), a water inlet pipe (300), a water outlet pipe (400), and an aerator (100) as described in any one of claims 1-10, wherein the water inlet pipe (300), the combustion heat exchange device (200), and the water outlet pipe (400) are connected in series, and the aerator (100) is connected in series with the water inlet pipe (300) or the water outlet pipe (400).

Images