Foaming water mixing device and gas water heater

Abstract

This utility model belongs to the field of water heater technology, specifically disclosing an aerating and mixing device and a gas water heater. The aerating and mixing device includes a main body and a first cylinder. The main body has a first inlet, a mixing chamber, and an outlet connected in sequence. A second inlet is also provided on the outer periphery of the main body. The first cylinder is located in the mixing chamber, dividing the mixing chamber into a first cavity located inside the first cylinder and a second cavity located between the inner wall of the first cylinder and the main body. The first cavity and the second cavity are connected through a first through hole provided on the first cylinder. The first cavity is connected between the first inlet and the outlet, and the second inlet is connected to the second cavity. The first cylinder is provided with a turbulence-generating structure, which includes multiple concentrically spaced turbulence rings and a turbulence beam connected to all the turbulence rings. A second through hole is formed between the turbulence rings and the turbulence beam, which is connected to the first cavity. It can simultaneously achieve the effects of mixing water and generating aeration.

Description

Technical Field

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

[0002] Gas water heaters typically consist of an inlet pipe, a heat exchanger, and an outlet pipe connected in sequence. When a user needs to pause the use of the gas water heater, such as to turn off the water to apply shower gel, the water in the heat exchanger will be further heated by the residual heat during the pause, causing that portion of the water to become too hot. When the user restarts the gas water heater, due to the time lag during startup, some water may not be fully heated. Therefore, when the user restarts the gas water heater a second time, they will encounter two consecutive periods of extremely high and low outlet water temperatures—two periods of very large temperature difference—before the water returns to the preset temperature, resulting in a poor user experience.

[0003] In addition, when the 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 near the surface and generate a certain impact force, thus cleaning the surface more efficiently.

[0004] In existing gas water heaters, a bypass pipe is typically added between the inlet and outlet pipes. This allows cold water from the inlet pipe to directly enter the outlet pipe during a second start-up of the water heater, mixing with the overheated water to cool it down and prevent excessively high outlet temperatures. Additionally, an aerator is connected to the outlet pipe to include more air bubbles in the output water, improving the cleaning efficiency of the water from the gas water heater.

[0005] However, such gas water heaters have a complex structure and are difficult to design in a smaller and thinner form. Utility Model Content

[0006] One of the technical problems solved by this utility model is to provide a foaming and mixing device that can effectively solve the problem that the existing technology cannot achieve the effects of mixing and foaming through a single structure.

[0007] The second technical problem solved by this utility model is to provide a gas water heater that can effectively solve the problem that the existing gas water heaters have a complex structure and are difficult to design in a smaller and thinner way.

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

[0009] A foaming and mixing device, comprising:

[0010] The device body includes a first inlet, a mixing chamber, and an outlet connected in sequence; a second inlet is also provided on the outer periphery of the device body; and...

[0011] A first cylindrical body is disposed within the mixing chamber to divide the mixing chamber into a first cavity located within the first cylindrical body and a second cavity located between the inner wall of the first cylindrical body and the main body of the device. The first cavity and the second cavity are connected through a first through hole provided on the first cylindrical body. The first cavity is connected between the first inlet and the outlet. The outer periphery of the first cylindrical body is sealed to the main body of the device so that the second cavity is not directly connected to the outlet. The second inlet is connected to the second cavity.

[0012] The first cylinder is provided with a turbulence-inducing bubble structure, which includes a plurality of concentrically spaced turbulence rings and a turbulence beam connected to all of the turbulence rings. One of the turbulence rings and / or the turbulence beam is connected to the first cylinder, and a second through hole communicating with the first cavity is formed between the turbulence ring and the turbulence beam.

[0013] The foaming and mixing device described in this utility model has the following advantages compared with the prior art:

[0014] By including a main body and a first cylinder within the main body, hot and cold water can enter the main body through a first inlet and a second inlet, respectively, mix in the mixing chamber, and then flow through the first chamber to the outlet for discharge. The first cylinder is sealed to the main body, preventing direct connection between the second chamber and the outlet. This indirect connection, via the first chamber, forces cold water flowing into the second chamber through the second inlet to enter the first chamber to mix with the hot water before flowing to the outlet, resulting in a more stable water temperature at the outlet.

[0015] Meanwhile, by setting a turbulence-inducing bubble structure in the first cylinder, the turbulence-inducing bubble structure has multiple concentrically spaced turbulence rings and turbulence beams, and forms multiple second through holes extending along the arc direction. This allows water to impact the turbulence rings and turbulence beams as it passes through the turbulence-inducing bubble structure, thus creating a certain amount of turbulence. At the same time, by making the second through holes extend along the arc direction, it is beneficial for the water in the first cylinder to flow radially and circumferentially after passing through the second through holes, so as to collide with the water flowing out from the adjacent second through holes, thereby generating greater turbulence and generating a certain amount of swirling flow. This allows the water to flow rapidly in a state of turbulence and swirling flow. During this process, the pressure of the water flow changes significantly, causing the dissolved air in the water flow to be released from the water flow when the pressure decreases and to be squeezed and broken when the pressure increases. This, in turn, achieves the effect of increasing the number of air bubbles in the water flow through the bubble structure.

[0016] Furthermore, when the water flow impacts the turbulence ring and turbulence beam, the air bubbles carried in the water flow can be broken into smaller bubbles under the impact force, thereby increasing the number of air bubbles carried in the water flow and improving the stability of the air bubbles in the water flow, reducing the possibility that the air bubbles will automatically break before they reach the surface to be cleaned.

[0017] In one embodiment, the first cylinder is provided with the turbulence-generating structure at one end near the first water inlet, and the first cavity is connected to the first water inlet through the second through hole; and / or, the first cylinder is provided with the turbulence-generating structure at one end near the water outlet, and the first cavity is connected to the water outlet through the second through hole.

[0018] In one embodiment, the first cylinder is provided with the turbulence-inducing structure at both opposite ends, the total opening area of ​​all the first through holes is S1, the total opening area of ​​the second through holes of the turbulence-inducing structure at the end of the first cylinder near the first inlet is S21, the total opening area of ​​the second through holes of the turbulence-inducing structure at the end of the first cylinder near the outlet is S22, and S1+S21≤S22.

[0019] In one embodiment, the first cylinder is provided with the turbulence-inducing foaming structure at both opposite ends, and the first cavity is provided with at least one filter material.

[0020] In one embodiment, the inner wall of the main body of the device is provided with a first retaining ring, the first retaining ring being located between the second cavity and the water outlet, and the outer periphery of the first cylinder is provided with a second retaining ring, the first retaining ring being fitted onto the outer periphery of the end of the first cylinder, and the second retaining ring being sealed to the side of the first retaining ring facing the inside of the second cavity.

[0021] In one embodiment, the main body of the device includes a split tee and a second cylinder. The tee has a mixing chamber, a second inlet, and an outlet. The tee also has a first connecting port communicating with the mixing chamber. The tee is provided with a first connecting cylinder surrounding the first connecting port. The first connecting cylinder is sealed and sleeved on one end of the second cylinder. The second cylinder has a first inlet and a second connecting port. The first inlet communicates with the mixing chamber through the internal space of the second cylinder and the second connecting port.

[0022] In one embodiment, a third retaining ring is further connected to the outer periphery of the first cylinder, and one end of the second cylinder containing the second communication port abuts against the third retaining ring; and / or,

[0023] The second cylinder is also provided with a fourth retaining ring, which is spaced apart from the first cylinder.

[0024] In one embodiment, a third through hole is formed between the outer periphery of the end of the first cylinder connected to the first water inlet and the inner wall of the main body of the device, and the first water inlet and the mixing chamber are connected through the third through hole.

[0025] In one embodiment, a turbulence-inducing ring is connected to one end of the first cylinder connected to the first water inlet. The turbulence-inducing ring protrudes from the outer periphery of the first water inlet, and a third through hole is formed between the turbulence-inducing ring and the inner wall of the device body; and / or,

[0026] The total opening area of ​​all the third through holes is S3, and the area S3 satisfies the condition that the total opening area S1 of all the first through holes is S1≥S3.

[0027] In one embodiment, the first cylinder includes a split first part and a second part, the first part and / or the second part are provided with the turbulence-generating structure, the first part is located between the second part and the first water inlet, the outer periphery of the first part and the second part are provided with the first through hole, and one of the first part and the second part is provided with a second connecting cylinder at its end, the second connecting cylinder being fitted into the end of the other part.

[0028] In one embodiment, the device body includes an energy storage chamber having the first water inlet, and the energy storage chamber is connected to the mixing chamber; and / or,

[0029] The main body of the device includes a water outlet chamber, which has the water outlet and is connected to the first chamber.

[0030] In one embodiment, the foaming and mixing device further includes a crushing component disposed within the main body of the device and located between the first cylinder and the water outlet. The crushing component includes a plurality of blades distributed circumferentially around the main body of the device.

[0031] In one embodiment, the inner wall of the device body includes a first stepped surface facing the water outlet, and the foaming and mixing device further includes a limiting member, which is engaged with the device body and located between the first stepped surface and the water outlet. The limiting member and the first stepped surface together limit the broken piece between the limiting member and the first stepped surface.

[0032] The second technical problem mentioned above is solved by the following technical solution:

[0033] A gas water heater includes: a burner, a bypass pipe, and an inlet pipe, a heat exchanger, and an aerating and mixing device as described in the foregoing technical solution, wherein the burner is capable of supplying heat to the heat exchanger, the first inlet of the aerating and mixing device is connected to the heat exchanger, and the bypass pipe is connected between the inlet pipe and the second inlet of the aerating and mixing device.

[0034] The gas water heater described in this utility model has the following advantages compared with the prior art:

[0035] By using the aforementioned aerating and mixing device that can simultaneously achieve water mixing and aeration effects, the number of components in a gas water heater can be reduced, improving the structural compactness of the gas water heater, thus enabling a smaller and thinner design for the gas water heater. Attached Figure Description

[0036] Figure 1 A three-dimensional structural diagram of the foaming and mixing device provided in an embodiment of this utility model at an angle;

[0037] Figure 2 A three-dimensional structural diagram of the foaming and mixing device provided in an embodiment of this utility model from another angle;

[0038] Figure 3 for Figure 2 A cross-sectional schematic diagram of the foaming and mixing device shown in the figure;

[0039] Figure 4 for Figure 3 An exploded view of the foaming and mixing device shown in the diagram;

[0040] Figure 5 for Figure 3 An exploded view of the structure of the first cylinder shown in the diagram;

[0041] Figure 6 A schematic diagram of the structure of the foaming and mixing device (including the crushing component) provided in the embodiment of this utility model;

[0042] Figure 7 This is a structural schematic diagram of a gas water heater provided in an embodiment of the present utility model;

[0043] Label Explanation:

[0044] 100. Foaming and mixing device;

[0045] 1. Main body of the device; 11. First inlet; 12. Mixing chamber; 121. First chamber; 122. Second chamber; 13. Outlet; 14. Second inlet; 15. First retaining ring; 16. T-joint; 161. First connecting port; 162. First connecting cylinder; 163. Outlet chamber; 163a. ​​First stepped surface; 163b. Second stepped surface; 163c. Fifth retaining ring; 17. Second cylinder; 171. Second connecting port; 172. Elastic sealing ring; 173. Receiving ring groove; 174. Fourth retaining ring; 175. Energy storage chamber;

[0046] 2. First cylinder; 21. First through hole; 22. Turbulence-generating structure; 220. Turbulence ring; 221. Turbulence beam; 222. Second through hole; 23. Second retaining ring; 24. Third retaining ring; 240. Connecting beam; 25. Third through hole; 26. First part; 27. Second part; 28. Second connecting cylinder;

[0047] 3. Crushing component; 30. Blade; 31. Third cylinder; 32. Limiting component;

[0048] 200. Bypass pipe;

[0049] 300. Water inlet pipe;

[0050] 400. Heat exchanger. Detailed Implementation

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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.

[0055] Please see also Figures 1 to 4This embodiment provides a foaming and mixing device 100, including a device body 1 and a first cylinder 2. The device body 1 has a first water inlet 11, a mixing chamber 12, and a water outlet 13 connected in sequence. A second water inlet 14 is also provided on the outer periphery of the device body 1. The first cylinder 2 is disposed in the mixing chamber 12 to divide the mixing chamber 12 into a first cavity 121 located in the first cylinder 2 and a second cavity 122 located between the inner wall of the first cylinder 2 and the inner wall of the device body 1. The first cavity 121 and the second cavity 122 are connected through a first through hole 21 provided on the first cylinder 2. The first cavity 121 is connected between the first water inlet 11 and the water outlet 13, that is, one end of the first cavity 121 is connected to the first water inlet 11 and the water outlet 13. One inlet 11, the other end of the first cavity 121 is connected to the outlet 13, and the outer periphery of the first cylinder 2 is sealed to the main body 1 of the device so that the second cavity 122 is not directly connected to the outlet 13, and the second inlet 14 is connected to the second cavity 122; the first cylinder 2 is provided with a turbulence-generating structure 22, which includes a plurality of concentrically spaced turbulence rings 220 and a turbulence beam 221 connected to all the turbulence rings 220, one turbulence ring 220 or one turbulence beam 221, or one turbulence ring 220 and one turbulence beam 221 are connected to the first cylinder 2, and a second through hole 222 is formed between the turbulence ring 220 and the turbulence beam 221, which is connected to the first cavity 121.

[0056] By including a main body 1 and a first cylinder 2 disposed within the main body 1, hot water and cold water can enter the main body 1 through the first inlet 11 and the second inlet 14 respectively, mix in the mixing chamber 12, and then flow through the first chamber 121 to the outlet 13 for discharge. Specifically, by sealing the outer periphery of the first cylinder 2 to the main body 1, the second chamber 122 is not directly connected to the outlet 13. This allows the second chamber 122 to be indirectly connected to the outlet 13 via the first chamber 121. Consequently, the cold water flowing into the second chamber 122 through the second inlet 14 must enter the first chamber 121 to mix with the hot water before flowing to the outlet 13, resulting in a more stable water temperature at the outlet 13.

[0057] Meanwhile, by setting a turbulence-inducing bubble structure 22 in the first cylinder 2, the turbulence-inducing bubble structure 22 has multiple concentrically spaced turbulence rings 220 and turbulence beams 221, and forms multiple second through holes 222 extending in the arc direction. This allows water to impact the turbulence rings 220 and turbulence beams 221 as it passes through the turbulence-inducing bubble structure 22, thereby creating a certain amount of turbulence. At the same time, by making the second through holes 222 extend in the arc direction, it is beneficial for the water in the first cylinder 2 to flow radially and circumferentially in the first cylinder 2 after passing through the second through holes 222, so as to collide with the water flowing out from the adjacent second through holes 222, thereby generating greater turbulence and generating a certain amount of swirling flow. This allows the water to flow rapidly in the state of turbulence and swirling flow. During this process, the pressure of the water flow changes significantly, causing the air dissolved in the water flow to be released from the water flow when the pressure decreases and to be squeezed and broken when the pressure increases. Thus, the bubble structure achieves the effect of increasing the number of bubbles in the water flow.

[0058] Furthermore, when the water flow impacts the turbulence ring 220 and the turbulence beam 221, the air bubbles carried in the water flow can be broken into smaller bubbles under the impact force, thereby increasing the number of air bubbles carried in the water flow, improving the stability of the air bubbles in the water flow, and reducing the possibility that the air bubbles will automatically break before they reach the surface to be cleaned.

[0059] In addition, when water flows through the first through hole 21 between the first cavity 121 and the second cavity 122, it can also create a certain amount of turbulence, which can further increase the number of air bubbles in the water flow.

[0060] Understandably, a circular second through hole 222 can be formed inside the innermost eddy ring 220, or the innermost eddy ring 220 can be blocked.

[0061] In one embodiment, the first cylinder 2 is provided with a turbulence-generating structure 22 at one end near the first water inlet 11. The first cavity 121 is connected to the first water inlet 11 through the second through hole 222. This allows hot water to form turbulence and swirling flow near the turbulence-generating structure 22 and in the mixing cavity 12 when it flows into the first cavity 121 from the first water inlet 11. This allows the hot water to release and compress air more fully during the flow in the mixing cavity 12, forming more bubbles with smaller diameters.

[0062] In one embodiment, the first cylinder 2 is provided with a turbulence-generating structure 22 at one end near the outlet 13. The first cavity 121 is connected to the outlet 13 through the second through hole 222. Thus, when water flows from the first cavity 121 to the outlet 13, the turbulence-generating structure 22 causes the water to form turbulence and swirl near the turbulence-generating structure 22 and the outlet 13, so that the air in the water flow is released and compressed.

[0063] In one embodiment, both opposite ends of the first cylinder 2 are provided with turbulence-inducing structures 22, thereby increasing the number of air bubbles in the water flow discharged at the outlet 13 and reducing the diameter of the air bubbles by increasing the number of turbulence-inducing structures 22.

[0064] In one embodiment, at least one filter medium (not shown in the figure) is provided in the first cavity 121. On the one hand, it can adjust the water quality flowing through the first cavity 121. On the other hand, it can also influence the flow of water through the filter medium, so as to further increase the turbulence and swirling flow formed in the water flow in the first cavity 121, thereby further increasing the number of bubbles carried in the water flow and reducing the diameter of the bubbles. At this time, it can be understood that the turbulence-generating structure 22 provided at both opposite ends of the first cylinder 2 can also serve as a limiting function to confine the filter medium within the first cavity 121.

[0065] For example, the filter media may include, but are not limited to, scale inhibitor filter media and strontium-rich ore.

[0066] In one embodiment, the total opening area of ​​all the first through holes 21 is S1, the total opening area of ​​the second through holes 222 of the turbulence-inducing bubble structure 22 at the end of the first cylinder 2 near the first inlet 11 is S21, and the total opening area of ​​the second through holes 222 of the turbulence-inducing bubble structure 22 at the end of the first cylinder 2 near the outlet 13 is S22, S1+S21≤S22. This allows the water to flow smoothly from the first inlet 11 to the outlet 13 when the cold water bypass pipe connected to the second inlet 14 is not supplying water, and the water flow will not be restricted due to the small opening area of ​​the outlet 13. When the cold water bypass pipe connected to the second inlet 14 is supplying water, the water flow from the mixing chamber 12 to the outlet 13 is smoother, and the cold water and hot water are more easily mixed in the mixing chamber 12, thereby improving the temperature stability of the water output at the outlet 13.

[0067] In other embodiments, at least a portion of the turbulence-generating structure 22 may be disposed inside the first cylinder 2.

[0068] In one embodiment, a first retaining ring 15 is provided on the inner wall of the device body 1, located between the second cavity 122 and the water outlet 13. A second retaining ring 23 is provided on the outer periphery of the first cylinder 2. The first retaining ring 15 is fitted onto the outer periphery of the end of the first cylinder 2, and the second retaining ring 23 is sealed to the side of the first retaining ring 15 facing the inside of the second cavity 122. This ensures that the second cavity 122 and the water outlet 13 are not directly connected, and that the device body 1 and the cylinder are separate structures. This allows for the disassembly of the complex structure, enabling the separate manufacture of the simpler device body 1 and cylinder, reducing the manufacturing difficulty of the foaming and mixing device 100, and facilitating the inspection and replacement of local structures of the foaming and mixing device 100. The second retaining ring 23 can be sealed to the first retaining ring 15 by means including but not limited to sealing contact, sealing bonding, and elastic sealing ring compression connection.

[0069] In one embodiment, the main body 1 of the device includes a separate three-way connector 16 and a second cylinder 17. The three-way connector 16 has a mixing chamber 12, a second inlet 14 and an outlet 13. The three-way connector 16 also has a first connecting port 161 communicating with the mixing chamber 12. The three-way connector 16 is provided with a first connecting cylinder 162 surrounding the first connecting port 161. The first connecting cylinder 162 is sealed and sleeved on one end of the second cylinder 17. The second cylinder 17 has a first inlet 11 and a second connecting port 171. The first inlet 11 communicates with the mixing chamber 12 through the internal space of the second cylinder 17 and the second connecting port 171, thereby facilitating the disassembly, assembly and maintenance of the first cylinder 2 inside the mixing chamber 12 by separating the three-way connector 16 from the second cylinder 17.

[0070] In one embodiment, an elastic sealing ring 172 may be sandwiched between the first connecting cylinder 162 and the second cylinder 17, thereby improving the connection sealing between the first connecting cylinder 162 and the second cylinder 17 and reducing the possibility of water leakage.

[0071] For example, a receiving annular groove 173 may be provided on the outer periphery of the second cylinder 17, and the elastic sealing ring 172 is partially limited in the receiving annular groove 173, so that the relative position of the elastic sealing ring 172 and the second cylinder 17 is more stable, and the sealing effect of the elastic sealing ring 172 on the connection between the first connecting cylinder 162 and the second cylinder 17 is also more stable.

[0072] In one embodiment, a third retaining ring 24 is also connected to the outer periphery of the first cylinder 2. The end of the second cylinder 17 with the second connecting port 171 abuts against the third retaining ring 24, thereby limiting the third retaining ring 24 by the second cylinder 17 to confine the first cylinder 2 within the mixing chamber 12. Furthermore, when the first retaining ring 15 and the second retaining ring 23 are directly sealed against each other or sealed against each other by an elastic sealing ring, as described in the aforementioned technical solution, an abutting force can be applied to the third retaining ring 24 by the end of the second connecting port 171 of the second cylinder 17, so that the first retaining ring 15 and the second retaining ring 23 remain in a sealed abutting state.

[0073] In one embodiment, a fourth baffle ring 174 is also provided inside the second cylinder 17. The fourth baffle ring 174 is spaced apart from the first cylinder 2. On the one hand, the fourth baffle ring 174 can abut against the end of the second cylinder 17 connected to other water supply pipes to limit the extreme position when the end of other water supply pipes is inserted into the second cylinder 17. On the other hand, a smaller flow path can be formed in the inner circle of the fourth baffle ring 174, so that when the water flows from the inner circle of the fourth baffle ring 174 to the position between the fourth baffle ring 174 and the first cylinder 2 with a larger flow path, the pressure of the water flow can be reduced. This allows a certain amount of air to be released before the water flow contacts the turbulence-forming bubble structure 22, so that the air carried in the water flow can be released more fully. At the same time, the air released in advance can be broken when it hits the turbulence-forming bubble structure 22 with the water flow, which is beneficial to further increase the number of bubbles carried in the water flow discharged from the outlet 13 and reduce the diameter of the bubbles.

[0074] In one embodiment, a third through hole 25 is formed between the outer periphery of the end of the first cylinder 2 connected to the first water inlet 11 and the inner wall of the device body 1. The first water inlet 11 and the mixing chamber 12 are connected through the third through hole 25. This allows, on the one hand, when cold water is supplied from the second water inlet 14, a portion of hot water can directly enter the second chamber 122 through the third through hole 25 to initially mix with the cold water, and then enter the first chamber 121 together with the cold water through the first through hole 21, allowing for more thorough mixing of the cold and hot water. On the other hand, even if the filter media in the first cylinder 2 causes some blockage to the first chamber 121 after long-term use, hot water can still enter the second chamber 122 through the first water inlet 11 and pass through the unblocked portion of the first through hole of the first cylinder 2. 21 enters the first chamber 121, which is also connected to the outlet 13, so that it can be smoothly discharged from the outlet 13. In other words, it can form another flow path for water to flow to the outlet 13, so as to reduce the impact on the machine and user experience when the first chamber 121 is partially blocked after long-term use. On the other hand, this setting can also allow hot water at the first inlet 11 to enter the second chamber 122 through the third through hole 25 when there is no cold water supply at the second inlet 14, so as to push the hot water in the second chamber 122 through the first through hole 21 into the first chamber 121, without stagnating in the second chamber 122. This is beneficial to generate more turbulence after the hot water passes through the second through hole 222, thereby increasing the number of air bubbles in the water output from the outlet 13 and reducing the diameter of the air bubbles.

[0075] In one embodiment, a turbulence ring 220 is connected to one end of the first cylinder 2 connected to the first water inlet 11. The turbulence ring 220 protrudes from the outer periphery of the first water inlet 11, and a third through hole 25 is formed between the turbulence ring 220 and the inner wall of the device body 1. Thus, on the one hand, the turbulence ring 220 can be used to create turbulence in the second cavity 122. On the other hand, by making the turbulence ring 220 protrude from the outer periphery of the first water inlet 11, the opening area of ​​the third through hole 25 can be adjusted to control the proportion of water flowing from the first water inlet 11 to the first cavity 121 and the third through hole 25 respectively. It can also make the flow path increase when the water flows from the third through hole 25 to the second cavity 122, so as to reduce the water pressure and thus facilitate the more complete release of air carried in the water.

[0076] In one embodiment, the total opening area of ​​all the third through holes 25 is S3, and the area S3 satisfies the condition that S1 ≥ S3 with the total opening area S1 of all the first through holes 21. This allows the water to flow smoothly from the third through holes 25 through the second cavity 122 and the first through holes 21 to the second cavity 122 when the cold water bypass pipe connected to the second inlet 14 is not supplying water. This prevents the water flow from being restricted due to the small opening area of ​​the first through holes 21. When the cold water bypass pipe connected to the second inlet 14 is supplying water, the water flow from the second cavity 122 to the first through holes 21 is smoother, and the cold and hot water are more easily mixed in the second cavity 122, resulting in better temperature stability of the water output from the outlet 13.

[0077] When, as described in the aforementioned technical solution, the outer periphery of the first cylinder 2 is also connected to a third retaining ring 24, the third retaining ring 24 can be spaced around the outer periphery of the first cylinder 2 at intervals, and the third retaining ring 24 can be connected to the first cylinder 2 through the connecting beam 240, so that a third through hole 25 is formed between the outer periphery of the first cylinder 2, the connecting beam 240 and the third retaining ring 24.

[0078] In other embodiments, the third retaining ring 24 may also be directly connected to the outer periphery of the first cylinder 2 so that the outer periphery of the first cylinder 2 does not have a third through hole 25.

[0079] Please combine Figure 5 As shown, in one embodiment, the first cylinder 2 includes a split first part 26 and a second part 27. The first part 26 or the second part 27 is provided with a turbulence-inducing foaming structure 22, or both the first part 26 and the second part 27 are provided with a turbulence-inducing foaming structure 22. The first part 26 is located between the second part 27 and the first inlet 11. The outer periphery of both the first part 26 and the second part 27 is provided with a first through hole 21. One of the first part 26 and the second part 27 is provided with a second connecting cylinder 28 at its end. The second connecting cylinder 28 is fitted onto the end of the other part. This allows the first part 26 and the second part 27 to be connected, making the structure of the first cylinder 2 formed by the connection of the first part 26 and the second part 27 more stable and the turbulence and mixing effect of the first cylinder 2 more stable. On the other hand, it is convenient to expose the interior of the first cavity 121 by separating the first part 26 and the second part 27, thereby facilitating the maintenance, filter material replacement and other operations of the interior of the first cavity 121.

[0080] In one embodiment, the main body 1 of the device includes an energy storage chamber 175, which has a first water inlet 11 and is connected to a mixing chamber 12. This allows the energy storage chamber 175 to receive water output from the heat exchanger to the first water inlet 11, thereby increasing the capacity of the main body 1. When the gas water heater is started for the second time, the two sections of water with a large temperature difference output from the heat exchanger can be mixed in the energy storage chamber 175 and the mixing chamber 12. This allows the superheated water to compensate for the heat of the water that has not been fully heated, thereby reducing the temperature difference between the two sections of water.

[0081] When the device body 1 includes a second cylinder 17 as described in the aforementioned technical solution, the internal space of the second cylinder 17 can be formed as an energy storage cavity 175.

[0082] In one embodiment, the main body 1 of the device includes a water outlet chamber 163, which has a water outlet 13 and is connected to the first chamber 121. This can further increase the capacity of the main body 1 of the device, thereby further improving the mixing uniformity of the two sections of water with a large temperature difference at the first water inlet 11 and the cold water at the second water inlet 14, and further reducing the temperature variation of the water output at the water outlet 13.

[0083] Preferably, the main body 1 of the device can include both the aforementioned energy storage chamber 175 and water outlet chamber 163, thereby improving the water temperature stability at the water outlet 13.

[0084] In one embodiment, the foaming and mixing device 100 further includes a crushing component 3, which is disposed inside the device body 1 (i.e., inside the tee 16) and located between the first cylinder 2 and the water outlet 13 (i.e., inside the water outlet cavity 163). The crushing component 3 includes a plurality of blades 30 distributed around the circumference of the device body 1, so that as the water flows from the first cavity 121 to the water outlet 13, it can impact the blades 30, thereby further breaking the air bubbles carried in the water into smaller bubbles.

[0085] Specifically, the circumferential direction of the main body 1 refers to the circumferential direction of the partial structure of the main body 1 where the crushing component 3 is located.

[0086] In one embodiment, at least some of the blades 30 may be tilted relative to the axial direction of the device body 1. This allows the surface area of ​​the blades 30 that can be impacted when water impacts the blades 30 along the axial direction of the device body 1 to be larger, and more air bubbles carried in the water to be further broken up by the blades 30. On the other hand, the water flow can also form a swirling flow under the guidance of the tilted blades 30, so that the water can gain more kinetic energy when flowing in the breaking piece 3, and avoid the water flow rate being too slow.

[0087] In one embodiment, all blades 30 that are axially inclined relative to the main body 1 have the same inclination direction, so that all blades 30 that are axially inclined relative to the main body 1 can be used to guide the water flow in the same spiral direction, so that the overall flow of water through the breaker 3 is smoother.

[0088] Specifically, the axial direction of the main body 1 refers to the axial direction of the local structure of the part of the main body 1 where the crushing component 3 is located.

[0089] In one embodiment, the crushing component 3 further includes a third cylinder 31, all blades 30 are disposed in the inner space of the third cylinder 31, and all blades 30 are connected to the inner wall of the third cylinder 31, so that the structure of all blades 30 can be fixed by the third cylinder 31, making the structure of the crushing component 3 more stable and the crushing effect of the crushing component 3 on the bubbles in the water more stable.

[0090] In one embodiment, the foaming and mixing device 100 may include a plurality of breaking parts 3, which are arranged sequentially along the axial direction of the device body 1. By increasing the number of breaking parts 3, the number of times water impacts the blades 30 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.

[0091] In one embodiment, the inner wall of the device body 1 includes a first stepped surface 163a facing the water outlet 13. The foaming and mixing device also includes a limiting member 32. The limiting member 32 is snapped into the device body 1 and located between the first stepped surface 163a and the water outlet 13. The limiting member 32 and the first stepped surface 163a together limit the crushing member 3 between the limiting member 32 and the first stepped surface 163a, so that the installation position of the crushing member 3 in the water outlet cavity 163 is easy to maintain stable, so that the cutting and crushing effect of the crushing member 3 on the foaming in the water flow is easy to maintain stable.

[0092] For example, in the direction from the first cylinder 2 to the outlet 13, the outlet cavity 163 may include at least three sub-cavities (not labeled in the figure) with progressively increasing inner diameters, so that at the connection between two adjacent sub-cavities, the cavity wall of the outlet cavity 163 forms a first stepped surface 163a and a second stepped surface 163b located between the first stepped surface 163a and the outlet 13. The inner wall of the outlet cavity 163 is also provided with a fifth retaining ring 163c, which is spaced apart from the second stepped surface 163b and located between the second stepped surface 163b and the outlet 13. The foam mixing device also includes a limiting member 32. The breaking member 3 can be disposed on the side of the first step surface 163a facing the outlet 13, and the limiting member 32 can be engaged between the second step surface 163b and the fifth retaining ring 163c and abut against a breaking member 3. The first step surface 163a and the limiting member 32 together limit the breaking member 3 between the first step surface 163a and the limiting member 32, so that the installation position of the breaking member 3 in the outlet cavity 163 is easy to maintain stability, so that the cutting and breaking action of the breaking member 3 on the bubbles in the water flow is easy to maintain stability.

[0093] Furthermore, since the inner diameters of the multiple sub-cavities included in the water outlet cavity 163 increase sequentially in the direction from the first cylinder 2 to the water outlet 13, the second step surface 163b is located on the outer periphery of the first step surface 163a. ​​In other words, the crushing component 3 and the limiting component 32 can be sequentially installed on the side facing the first step surface 163a through the water outlet 13, and the limiting component 32 and the crushing component 3 can be sequentially removed through the water outlet 13, thereby facilitating the disassembly and assembly of the crushing component 3 and the limiting component 32.

[0094] Please see Figure 6 This embodiment provides a gas water heater, including: a burner (not shown in the figure), a bypass pipe 200, and a water inlet pipe 300, a heat exchanger 400, and an aerating and mixing device 100 as described in the foregoing technical solution, all connected in sequence. The burner can supply heat to the heat exchanger 400. The first inlet 11 of the aerating and mixing device 100 is connected to the heat exchanger 400, and the bypass pipe 200 is connected between the water inlet pipe 300 and the second inlet 14 of the aerating and mixing device 100. By using the aforementioned aerating and mixing device 100, which can simultaneously achieve mixing and aerating effects, the number of components included in the gas water heater can be reduced, improving the structural compactness of the gas water heater, so that the gas water heater can achieve a more miniaturized and thinner design. For ease of observation... Figure 6 The connection between the foaming and mixing device 100, the heat exchanger 400, and the bypass pipe 200 is simply shown in blocks, and the specific structure of the foaming and mixing device 100 is not shown.

[0095] 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.

[0096] 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 bubbling water mixing device, characterized by, include: The device body (1) has a first inlet (11), a mixing chamber (12), and an outlet (13) connected in sequence. A second inlet (14) is also provided on the outer periphery of the device body (1). A first cylindrical body (2) is disposed in the mixing chamber (12) to divide the mixing chamber (12) into a first chamber (121) located in the first cylindrical body (2) and a second chamber (122) located between the inner wall of the first cylindrical body (2) and the main body of the device (1). The first chamber (121) and the second chamber (122) are connected through a first through hole (21) provided on the first cylindrical body (2). The first chamber (121) is connected between the first inlet (11) and the outlet (13). The outer periphery of the first cylindrical body (2) is sealed to the main body of the device (1) so that the second chamber (122) and the outlet (13) are not directly connected. The second inlet (14) is connected to the second chamber (122). The first cylindrical body (2) is provided with a turbulence-inducing structure (22), which includes a plurality of concentrically spaced turbulence rings (220) and a turbulence beam (221) connected to all the turbulence rings (220). One of the turbulence rings (220) and / or the turbulence beam (221) is connected to the first cylindrical body (2), and a second through hole (222) communicating with the first cavity (121) is formed between the turbulence ring (220) and the turbulence beam (221).

2. The bubbling mixing device of claim 1, wherein The first cylinder (2) is provided with the turbulence-generating structure (22) at one end near the first water inlet (11), and the first cavity (121) is connected to the first water inlet (11) through the second through hole (222). Or, the first cylinder (2) is provided with the turbulence-generating structure (22) at one end near the water outlet (13), and the first cavity (121) is connected to the water outlet (13) through the second through hole (222).

3. The bubbling mixing device of claim 2, wherein, The first cylinder (2) is provided with the turbulence-inducing foaming structure (22) at both opposite ends. The total opening area of ​​all the first through holes (21) is S1. The total opening area of ​​the second through hole (222) of the turbulence-inducing foaming structure (22) at the end of the first cylinder (2) near the first water inlet (11) is S21. The total opening area of ​​the second through hole (222) of the turbulence-inducing foaming structure (22) at the end of the first cylinder (2) near the water outlet (13) is S22. S1+S21≤S22.

4. The bubbling mixing device of claim 2, wherein The first cylinder (2) is provided with the turbulence-inducing foaming structure (22) at both opposite ends, and at least one filter material is provided in the first cavity (121).

5. The bubbling mixing device of claim 1, wherein The inner wall of the main body (1) of the device is provided with a first retaining ring (15), which is located between the second cavity (122) and the outlet (13). The outer periphery of the first cylinder (2) is provided with a second retaining ring (23). The first retaining ring (15) is fitted onto the outer periphery of the end of the first cylinder (2), and the second retaining ring (23) is sealed to the side of the first retaining ring (15) facing the inside of the second cavity (122).

6. The bubbling mixing device of claim 5, wherein, The main body (1) of the device includes a split three-way connector (16) and a second cylindrical body (17). The three-way connector (16) has the mixing chamber (12), the second water inlet (14) and the water outlet (13). The three-way connector (16) also has a first connecting port (161) connected to the mixing chamber (12). The three-way connector (16) is provided with a first connecting cylinder (162) surrounding the first connecting port (161). The first connecting cylinder (162) is sealed and sleeved on one end of the second cylindrical body (17). The second cylindrical body (17) has a first water inlet (11) and a second connecting port (171) opposite to each other. The first water inlet (11) is connected to the mixing chamber (12) through the internal space of the second cylindrical body (17) and the second connecting port (171).

7. The foaming and mixing device according to claim 6, characterized in that, The outer periphery of the first cylindrical body (2) is also connected to a third retaining ring (24), and one end of the second cylindrical body (17) containing the second connecting port (171) abuts against the third retaining ring (24); and / or, The second cylinder (17) is also provided with a fourth retaining ring (174), which is spaced apart from the first cylinder (2).

8. The foaming and mixing device according to any one of claims 1-7, characterized in that, A third through hole (25) is formed between the outer periphery of the first cylinder (2) connected to the first water inlet (11) and the inner wall of the device body (1), and the first water inlet (11) and the mixing chamber (12) are connected through the third through hole (25).

9. The foaming and mixing device according to claim 8, characterized in that, The first cylindrical body (2) is connected to one end of the first water inlet (11) by a turbulence ring (220), the turbulence ring (220) protruding from the outer periphery of the first water inlet (11), and a third through hole (25) is formed between the turbulence ring (220) and the inner wall of the device body (1); and / or, The total opening area of ​​all the third through holes (25) is S3, and the area S3 satisfies the condition that the total opening area S1 of all the first through holes (21) is S1≥S3.

10. The foaming and mixing device according to any one of claims 1-7, characterized in that, The first cylinder (2) includes a split first part (26) and a second part (27). The first part (26) and / or the second part (27) are provided with the turbulence-generating structure (22). The first part (26) is located between the second part (27) and the first water inlet (11). The outer periphery of both the first part (26) and the second part (27) is provided with the first through hole (21). One of the first part (26) and the second part (27) is provided with a second connecting cylinder (28) at its end. The second connecting cylinder (28) is fitted onto the end of the other part.

11. The foaming and mixing device according to any one of claims 1-7, characterized in that, The main body (1) of the device includes an energy storage chamber (175), which has the first water inlet (11) and is connected to the mixing chamber (12); and / or, The main body (1) of the device includes a water outlet chamber (163), which has the water outlet (13) and is connected to the first chamber (121).

12. The foaming and mixing device according to any one of claims 1-7, characterized in that, The foaming and mixing device also includes a crushing component (3), which is disposed inside the main body (1) of the device and located between the first cylinder (2) and the water outlet (13). The crushing component (3) includes a plurality of blades (30) distributed around the main body (1) of the device.

13. The foaming and mixing device according to claim 12, characterized in that, The inner wall of the device body (1) includes a first stepped surface (163a) facing the water outlet (13). The foaming and mixing device also includes a limiting member (32). The limiting member (32) is engaged with the device body (1) and located between the first stepped surface (163a) and the water outlet (13). The limiting member (32) and the first stepped surface (163a) together limit the broken piece (3) between the limiting member (32) and the first stepped surface (163a).

14. A gas-fired water heater, characterized in that, include: The device comprises a burner, a bypass pipe (200), and a water inlet pipe (300), a heat exchanger (400), and a foaming mixing device as described in any one of claims 1-13, wherein the burner is capable of supplying heat to the heat exchanger (400), the first water inlet (11) of the foaming mixing device (100) is connected to the heat exchanger (400), and the bypass pipe (200) is connected between the water inlet pipe (300) and the second water inlet (14) of the foaming mixing device (100).

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