Atomizer, condenser heat exchanger and gas water heater

Abstract

This utility model belongs to the field of water heater technology, specifically disclosing an atomizer, a condensing heat exchange device, and a gas water heater. The atomizer includes an atomizer body and at least two atomizing heads. All atomizing heads are evenly distributed in a ring around the center line of the atomizer body. The intersection of the center line of the end face of each atomizing head with the center line of the atomizer body is point A, the center point of the end face of each atomizing head is point B, and the perpendicular intersection of the center point of the end face of each atomizing head with the center line of the atomizer body is point C. The length of line segment AC is w, the length of line segment BC is d, and the angle between the center line of the end face of each atomizing head and the center line of the atomizer body is α, tanα=d / w, where the value of d ranges from 18mm to 50mm, and the value of α ranges from 2° to 10°. This utility model can improve atomization efficiency, avoid the unsatisfactory overall misting effect caused by the small distance between two symmetrically arranged atomizing heads, and avoid the overall product cost being too high.

Description

Technical Field

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

[0002] A gas water heater, also known as a gas water boiler, is a gas appliance that uses gas as fuel and heats water by transferring heat to cold water flowing through a heat exchanger in order to produce hot water.

[0003] During operation, condensing gas water heaters produce condensate water through combustion heat exchange. In order to discharge the condensate water, some existing condensing gas water heaters have an atomizing device installed below the shell of the condensing heat exchanger. The atomizing device atomizes the condensate water produced by combustion heat exchange into water mist, which is then discharged outdoors with the flue gas from the flue pipe.

[0004] In existing technologies, a single atomizing head is typically installed on the atomizing device, located at the top center of the device. This head atomizes the condensed water. However, the atomization efficiency of a single atomizing head is relatively low. To address this issue, existing designs incorporate multiple atomizing heads to improve efficiency. However, with multiple heads, if they are too close together, the atomized water jets can interfere with each other, hindering efficiency. Conversely, if the distance between the heads is too great, the overall size of the atomizing device becomes excessively large, increasing its space requirements within the gas water heater and ultimately leading to a larger and more expensive product. Utility Model Content

[0005] One of the technical problems solved by this invention is to provide an atomizer that can improve atomization efficiency and avoid excessive costs.

[0006] The second technical problem solved by this utility model is to provide a condensation heat exchange device that can improve atomization efficiency and avoid excessive cost.

[0007] The third technical problem solved by this utility model is to provide a gas water heater that can improve atomization efficiency and avoid excessive cost.

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

[0009] Atomizers, including:

[0010] Atomizer body;

[0011] At least two atomizing heads are provided, all of which are evenly distributed in a ring around the centerline of the atomizer body. The intersection of the end face centerline of each atomizing head with the centerline of the atomizer body is point A, the end face center of each atomizing head is point B, and the perpendicular intersection of the end face center of each atomizing head with the centerline of the atomizer body is point C. The length of line segment AC is w, the length of line segment BC is d, and the angle between the end face centerline of each atomizing head and the centerline of the atomizer body is α, where tanα = d / w, and d ranges from 18mm to 50mm, and α ranges from 2° to 10°.

[0012] The atomizer described in this utility model has the following advantages compared with the prior art:

[0013] The atomizer includes at least two atomizing heads, and the atomization efficiency is improved by increasing the number of atomizing heads.

[0014] When the distance between two adjacent atomizing heads is too small, that is, the distance d between each atomizing head and the center line of the atomizing head body is too small, the atomized water mist produced by the two atomizing heads will interfere with each other, thus affecting the overall mist formation effect of the atomizer body; while when the distance between the two atomizing heads is too large, it will result in a relatively large size of the atomizer body, and a large-size product will lead to a higher overall product cost.

[0015] Similarly, when α is too small, the atomized water mist produced by the two atomizing heads will interfere with each other, thus affecting the overall misting effect of the atomizer body; while when α is too large, the atomizing head needs to have sufficient distance from the inner wall of the atomizing chamber where the atomizer is installed to avoid the water mist produced by the atomizing head directly contacting the inner wall of the atomizing chamber and affecting the misting effect. In other words, the space size of the atomizing chamber needs to be designed to be relatively large, and large-size products will lead to higher overall product costs.

[0016] By defining tanα = d / w, where d ranges from 18mm to 50mm and α ranges from 2° to 10°, the range of w is also limited. Ultimately, this allows for restrictions on the installation position and angle of the atomizing head in the atomizer. On one hand, it prevents interference between the atomized water mist generated by two symmetrically placed atomizing heads due to insufficient distance, resulting in an unsatisfactory overall mist formation effect. On the other hand, it avoids the atomizer becoming too large, thus preventing excessively high overall product costs.

[0017] In one embodiment, d = 27.5 mm; and / or

[0018] α = 5°.

[0019] In one embodiment, two atomizing heads are provided on the atomizer body, the two atomizing heads are symmetrically arranged along the central axis of the atomizer body, and the central axis of the atomizer body passes through point C.

[0020] In one embodiment, the atomizing head is tilted downwards from the side closer to the center of the atomizer body toward the side farther from the center of the atomizer body.

[0021] The second technical problem mentioned above is solved by the following technical solution:

[0022] Condensation heat exchange device, including:

[0023] The aforementioned atomizer;

[0024] A condenser housing assembly includes an atomizing housing with an atomizing chamber, a smoke exhaust housing connected to the upper end of the atomizing housing and having a smoke exhaust chamber, and a condenser housing disposed on the side of the smoke exhaust housing and having a condenser chamber. The upper end of the atomizing housing and the lower end of the smoke exhaust chamber are spaced apart to form a communication gap, the communication gap communicating with the condenser chamber, and the atomizer is disposed inside the atomizing chamber.

[0025] A condensing heat exchanger is disposed in the condensing chamber.

[0026] The condensation heat exchange device described in this utility model has the following advantages compared with the prior art:

[0027] The condensing heat exchanger includes the aforementioned atomizer. The atomizer comprises at least two atomizing heads, increasing the atomization efficiency by increasing the number of atomizing heads. Simultaneously, tanα = d / w is defined, where d ranges from 18mm to 50mm, α ranges from 2° to 10°, and thus the range of w is also limited. Ultimately, this allows for restrictions on the installation position and angle of the atomizing heads within the atomizer. On one hand, it avoids interference between the atomized water mist generated by two symmetrically arranged atomizing heads due to insufficient distance, resulting in an unsatisfactory overall atomization effect. On the other hand, it prevents the atomizer and condensing heat exchanger from becoming too large, thus avoiding excessively high overall product costs.

[0028] In one embodiment, the condensation heat exchange device further includes a flow guide, which is annular and installed at the upper end of the atomizing housing.

[0029] In one embodiment, the distance between the center point of the end face of the atomizing head and one of the side walls of the atomizing chamber is L, and the distance between the center point of the end face of the atomizing head and the upper end face of the guide member along the center line of the atomizer body is m, where L = k × m × tanα; and the value of k is in the range of 3-7.

[0030] In one embodiment, the flow guide includes a flow guide plate portion inclined relative to the horizontal plane, the flow guide plate portion being inclined from top to bottom towards the center of the flow guide; the angle between the flow guide plate portion and the center line of the atomizer body is β, β=arctan[L-((h1+H)·tanα] / H, where h1 is the standard water level when the atomizer is working normally, the standard water level is the vertical distance between the center point of the end face of the atomizing head and the liquid surface, and H is the burst height of the atomized water column.

[0031] In one embodiment, the atomizer body is provided with a connecting ear, the inner wall of the atomizing shell is provided with a support member, the connecting ear is installed on the support member and there is a gap between the atomizer body and the inner wall of the atomizing shell; a buffer member is sandwiched between the connecting ear and the support member.

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

[0033] Gas water heater, including the aforementioned condensing heat exchange device.

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

[0035] This gas water heater includes the aforementioned condensing heat exchange device. Within the condensing heat exchange device, the atomizer includes at least two atomizing heads, increasing the atomization efficiency by increasing the number of atomizing heads. Simultaneously, tanα = d / w is defined, where d ranges from 18mm to 50mm, α ranges from 2° to 10°, and thus the range of w is also limited. Ultimately, this allows for restrictions on the installation position and angle of the atomizing heads in the atomizer. On one hand, it avoids interference between the atomized water mist generated by two symmetrically arranged atomizing heads due to insufficient distance, resulting in an unsatisfactory overall mist formation effect. On the other hand, it prevents the atomizer and condensing heat exchange device from becoming too large, thus avoiding excessively high overall product costs. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the atomizer provided in Embodiment 1 of this utility model;

[0037] Figure 2 This is a cross-sectional structural diagram of the atomizer provided in Embodiment 1 of the present utility model;

[0038] Figure 3 A schematic diagram of an atomizer with three atomizing heads provided in Embodiment 1 of this utility model;

[0039] Figure 4 for Figure 3A schematic diagram showing the positional relationship between the two atomizing heads and the center line of the atomizer body;

[0040] Figure 5 This is a schematic diagram of the condensation heat exchange device provided in Embodiment 2 of this utility model;

[0041] Figure 6 A first-view cross-sectional view of the condensing heat exchange device provided in Embodiment 2 of this utility model;

[0042] Figure 7 A cross-sectional view from a second perspective of the condensation heat exchange device provided in Embodiment 2 of this utility model;

[0043] Figure 8 This is an exploded structural diagram of the condensation heat exchange device provided in Embodiment 2 of this utility model;

[0044] Figure 9 A cross-sectional view of the condenser shell of the condenser heat exchanger provided in Embodiment 2 of this utility model;

[0045] Figure 10 A third-angle cross-sectional view of the condensation heat exchange device provided in Embodiment 2 of this utility model;

[0046] Figure 11 for Figure 10 A schematic diagram after the water column is removed;

[0047] Figure 12 This is a partial cross-sectional view of the condensation heat exchange device provided in Embodiment 2 of this utility model;

[0048] Figure 13 for Figure 12 Enlarged view of point A in the middle;

[0049] Figure 14 This is a schematic diagram of the bottom shell of the atomizing shell provided in Embodiment 2 of this utility model;

[0050] Figure 15 This is a schematic diagram of the support component in the condensation heat exchange device provided in Embodiment 2 of this utility model;

[0051] Figure 16 This is a schematic diagram of the buffer component in the condensation heat exchange device provided in Embodiment 2 of this utility model.

[0052] Label Explanation:

[0053] 1. Atomizing shell; 11. Atomizing chamber; 12. Atomizing outlet; 13. Support component; 131. Support body; 132. Anti-rotation protrusion; 133. Abutment protrusion; 14. Water inlet; 15. Buffer component; 151. Buffer plate; 152. Downward flange; 153. Snap-fit ​​groove; 16. Locking component;

[0054] 2. Atomizer; 21. Atomizer head; 22. Connecting ear; 23. Atomizer body;

[0055] 3. Smoke exhaust housing; 31. Smoke exhaust chamber.

[0056] 4. Condenser shell; 41. Condenser chamber;

[0057] 5. Flow guide; 51. Flow guide plate section;

[0058] 6. Condensing heat exchanger. Detailed Implementation

[0059] 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.

[0060] In the description of this application, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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.

[0061] 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.

[0062] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation" and "connection" 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. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0063] Example 1

[0064] See Figure 1 and Figure 2 This embodiment provides an atomizer.

[0065] Specifically, the atomizer is used in the condensation heat exchange device of a gas water heater to atomize the condensate water generated by the condensation heat exchange device into atomized water mist.

[0066] Specifically, in this embodiment, the atomizer includes an atomizer body 23 and at least two atomizing heads 21.

[0067] All atomizing heads 21 are evenly distributed in a ring around the center line of the atomizer body 23. The intersection of the end face center line of all atomizing heads 21 with the center line of the atomizer body 23 is point A, the end face center point of atomizing head 21 is point B, and the perpendicular intersection of the end face center point of atomizing head 21 with the center line of the atomizer body 23 is point C. The length of line segment AC is w, the length of line segment BC is d, and the angle between the end face center line of each atomizing head 21 and the center line of the atomizer body 23 is α, tanα=d / w, where the value of d ranges from 18mm to 50mm, and the value of α ranges from 2° to 10°.

[0068] It is understandable that the intersection of the center lines of the end faces of all atomizing heads 21 is point A, which means that when the center line of the atomizer body 23 is distributed in the vertical direction, all atomizing heads 21 are set at an angle. Compared with setting all atomizing heads 21 horizontally, the angled setting can save space while avoiding interference between the atomized water columns of the atomizing heads 21, thereby avoiding the product size being too large.

[0069] Specifically, dotted line a represents the center line of the atomizer body 23; dotted line b represents the center line of the end face of one atomizing head 21; and dotted line c represents the center line of the end face of the other atomizing head 21. The intersection of dotted line b and dotted line c is point A.

[0070] The angle between the centerline of the atomizing head 21 and the centerline of the atomizer body 23 is α. According to geometric relationships, ∠BAC=α. Also according to geometric relationships, tanα=d / w.

[0071] Meanwhile, by restricting the range of values ​​for d and α, the installation position and angle of the atomizing head 21 can be defined. On the one hand, this avoids the distance between the two atomizing heads 21 being too small. On the other hand, the atomizing head 21 is set at an angle relative to the center line of the atomizer body 23, which can reduce the size of the atomizer itself.

[0072] It is understandable that when the distance between two adjacent atomizing heads 21 is too small, the atomized water mist produced by the two atomizing heads 21 will interfere with each other, thus affecting the overall misting effect of the atomizer body 23; while when the distance between the two atomizing heads 21 is too large, the size of the atomizer body 23 will be relatively large, and correspondingly, the size of the atomizing shell 1 also needs to be more adaptable. Large-sized products will lead to higher overall product costs.

[0073] Similarly, when α is too small, the atomized water mist generated by the two atomizing heads 21 will interfere with each other, thus affecting the overall misting effect of the atomizer body 23; while when α is too large, the atomizing head 21 needs to have a sufficient distance from the inner wall of the atomizing chamber 11 to avoid the water mist generated by the atomizing head 21 directly contacting the inner wall of the atomizing chamber 11 and affecting the misting effect. That is, the spatial size of the atomizing chamber 11 needs to be designed to be relatively large. Correspondingly, the size of the atomizing shell 1 also needs to be more adaptable. Large-size products will lead to higher overall product costs.

[0074] In this embodiment, tanα is defined as d / w, where d ranges from 18mm to 50mm, α ranges from 2° to 10°, and thus the range of w is also limited. Ultimately, this allows for the limitation of the installation position and angle of the atomizing head 21 in the atomizer, preventing the distance between the two atomizing heads 21 from being too small or too large, while also preventing α from being too small or too large, and preventing the overall size of the atomizer from being too large.

[0075] Optionally, in this embodiment, d can be 18mm, 20mm, 22mm, 27mm, 26mm, 27.5mm, 30mm, 32mm, 34mm, 36mm, 38mm, 40mm, 42mm, 44mm, 46mm, 48mm or 50mm.

[0076] Optionally, in this embodiment, α can be 2°, 3°, 4°, 5°, 6°, 7°, 8°, 9° or 10°.

[0077] The atomizer provided in this embodiment includes at least two atomizing heads 21 in the atomizer body 23, thereby improving atomization efficiency by increasing the number of atomizing heads 21. Simultaneously, the installation position and angle of the atomizing heads 21 in the atomizer are limited. This avoids interference between the atomized water mist generated by the two atomizing heads 21 due to insufficient distance, resulting in an unsatisfactory overall atomization effect. Furthermore, it prevents the atomizer body 23 and the atomizing shell 1 from becoming too large, thus avoiding excessively high overall product costs.

[0078] Alternatively, in one embodiment, d = 27.5 mm; and / or α = 5°.

[0079] For example, in some embodiments, d = 27.5 mm. Or, in other embodiments, α = 5°. Or, in still other embodiments, d = 27.5 mm and α = 5°.

[0080] d = 27.5 mm, α = 5°. Choosing these two values ​​ensures that the water mist produced by the two atomizing heads 21 can be well atomized without interfering with each other. Furthermore, the structural dimensions of the atomizer 2 can be controlled within an optimal size range, facilitating miniaturization. Simultaneously, this α tilt angle design prevents water mist produced by the atomizing head 21 from partially condensing and falling, thus affecting the atomization capability of the atomizing head 21. That is, if water mist produced by the atomizing head 21 partially condenses and falls onto the atomizing head 21 during atomization, the tilted design will cause the water droplets to quickly leave the atomizing head 21 under gravity, ensuring that the atomization capability of the atomizing head 21 remains stable.

[0081] Of course, in other embodiments, the values ​​of d and α can also be set as needed.

[0082] See Figure 1 and Figure 2 In one embodiment, the atomizing head 21 is tilted downward from the side near the center of the atomizer body 23 toward the side away from the center of the atomizer body 23.

[0083] That is, the side of the atomizing head 21 closer to the center of the atomizer body 23 is relatively higher, and the side of the atomizing head 21 further away from the center of the atomizer body 23 is relatively lower.

[0084] This configuration minimizes interference between the atomized water columns of each atomizing head 21.

[0085] Specifically, based on geometric relationships, it can be deduced that the tilt angle of the atomizing head 21 is α.

[0086] Specifically, see Figure 1 and Figure 2 In one embodiment, two atomizing heads 21 are provided on the atomizer body 23. The two atomizing heads 21 are symmetrically arranged along the central axis of the atomizer body 23, and the central axis of the atomizer body 23 passes through point C. Providing two atomizing heads 21 can improve atomization efficiency at a relatively low cost. In this case, the two atomizing heads 21 are arranged in an outward "V" shape, which can effectively avoid mutual interference between the atomized water columns of the two atomizing heads 21.

[0087] Of course, see Figure 3 and Figure 4 In other embodiments, the number of atomizing heads 21 may also be three, with the three atomizing heads 21 located at the three vertices of an equilateral triangle.

[0088] Specifically, see Figure 3Projecting along the center line of the atomizer body 23, the projections of the center points of the end faces of the three atomizing heads 21 are respectively located at the three vertices of an equilateral triangle, and the projection of the center line of the atomizer body 23 is the center point O of the circumcircle of the equilateral triangle.

[0089] Specifically, see Figure 4 In three-dimensional space, point O and all points B lie on the same horizontal plane; that is... Figure 4 The mid-plane BBO is a horizontal plane; the line segment AO extends in the vertical direction, and the position of the two atomizing heads 21 relative to the center line of the atomizer body 23 is shown, tanα=d / w.

[0090] Of course, in other embodiments, the number of atomizing heads 21 can also be set to other values ​​as needed, without further restrictions here.

[0091] Example 2

[0092] This embodiment provides a condensing heat exchange device, which is applied to a condensing gas water heater.

[0093] Specifically, see Figures 5-8 In this embodiment, the condensation heat exchange device includes a condensation shell assembly, a condensation heat exchanger 6, and an atomizer 2 as described in Embodiment 1.

[0094] Among them, see Figures 5-7 The condenser housing assembly includes an atomizing housing 1 with an atomizing chamber 11, a smoke exhaust housing 3 connected to the upper end of the atomizing housing 1 and having a smoke exhaust chamber 31, and a condenser housing 4 disposed on the side of the smoke exhaust housing 3 and having a condenser chamber 41. The upper end of the atomizing housing 1 and the lower end of the smoke exhaust chamber 31 are spaced apart to form a communication gap, which connects to the condenser chamber 41. The atomizer 2 is disposed inside the atomizing chamber 11.

[0095] The condenser heat exchanger 6 is located in the condenser chamber 41.

[0096] When the condensing heat exchange device provided in this embodiment is working, the high-temperature flue gas is condensed by the condensing heat exchanger 6 in the condensing chamber 41 of the condensing shell 4 and produces condensate. The condensate flows into the atomizing chamber 11, and the flue gas enters the exhaust chamber 31 through the connecting gap and is discharged. The condensate accumulated in the atomizing chamber 11 is atomized into atomized water under the atomization action of the atomizer 2 and discharged through the exhaust chamber 31.

[0097] The condensation heat exchange device is equipped with the atomizer of Embodiment 1. While ensuring atomization efficiency, the installation position and angle of the atomizing head 21 in the atomizer 2 are restricted. On the one hand, this avoids mutual interference of the atomized water mist generated by each atomizing head 21 due to excessive distance, resulting in an unsatisfactory overall atomization effect. On the other hand, it avoids excessive size of the atomizer body 23 and the atomizing shell 1, which would lead to a higher overall product cost.

[0098] Further, see Figures 6-9 The atomizing housing 1 is provided with a mist outlet 12 and a water inlet 14 that communicate with the atomizing chamber 11; the condensate generated in the condensing chamber 41 enters the atomizing chamber 11 through the water inlet 14; the atomized water generated by the atomizer 2 moves to the exhaust chamber 31 through the mist outlet 12.

[0099] Specifically, in order to facilitate the installation of the atomizer 2, the atomizer housing 1 includes a bottom shell and a side structure. Both the upper and lower ends of the side structure have openings. The bottom shell can be detached and installed at the lower opening of the side structure, and the atomizer 2 is installed on the bottom shell.

[0100] Further, see Figure 6 , Figure 7 , Figure 10 and Figure 11 In one embodiment, the condensation heat exchange device further includes a flow guide 5, which is annular and installed at the upper end of the atomizing housing 1.

[0101] Specifically, the guide element 5 is installed at the mist outlet 12. The guide element 5 can guide the flue gas overflowing from the condensation chamber 41 into the exhaust chamber 31 in a preset direction.

[0102] Furthermore, in one embodiment, the flow guide 5 includes a flow guide plate portion 51 that is inclined relative to the horizontal plane, the flow guide plate portion 51 being inclined from top to bottom toward the center of the flow guide 5.

[0103] With this configuration, the guide plate 51 of the guide member 5 can guide the flue gas overflowing from the condensation chamber 41 to flow into the exhaust chamber 31 in an upward direction, thereby reducing the downward atomizing pressure formed by the flue gas flowing into the exhaust chamber 31 on the mist outlet 12 and improving the atomizing effect of the atomizer 2.

[0104] Optionally, see Figure 10 and Figure 11 In one embodiment, the distance between the center point of the end face of the atomizing head 21 and one of the side walls of the atomizing cavity 11 is L. Along the extension direction of the center line of the atomizer body 23, the distance between the center point of the end face of the atomizing head 21 and the upper end face of the guide member 5 is m, where L = k × m × tanα; and the value of k ranges from 3 to 7.

[0105] Optionally, k can be 3, 4, 5, 6 or 7.

[0106] Preferably, L is the minimum distance between the center point of the end face of the atomizing head 21 and the inner wall of the atomizing cavity 11.

[0107] The above formula defines the relationship between angle α and L. Angle α can be determined based on the parameters of atomizer 2. After establishing the relationship between angle α and L, the size of L can be determined so as to reasonably design the size of L and avoid the atomized water droplets formed by atomizing head 21 from colliding with the inner wall of atomizing chamber and affecting the misting effect, thus ensuring the effectiveness of misting.

[0108] Specifically, m = h3 + h4.

[0109] Furthermore, in one embodiment, the angle between the guide plate portion 51 and the centerline of the atomizer body 23 is β, where β = arctan[L - ((h1 + H) · tanα] / H, where h1 is the standard water level when the atomizer is working normally, the standard water level is the vertical distance between the center point of the end face of the atomizing head 21 and the liquid surface, and H is the burst height of the atomized water column. Thus, the angle β between the guide plate portion 51 and the centerline of the atomizer body 23 can be obtained according to the required size of L.

[0110] It should be noted that the value of β is reasonable, ensuring that the flue gas flows into the exhaust chamber 31 from the outer inclined surface of the guide plate 51 at an upward angle. If the β angle is too small, it will cause the flue gas flow to inhibit the generation and flow of atomized water mist; if the β angle is too large, the flue gas flow will blow directly onto the atomized water column, destroying the stability of the water column and thus affecting the generation of water mist.

[0111] It is understandable that the standard water level h1 and the burst height H of the atomized water column are inherent parameters of the atomizer itself.

[0112] Specifically, in the atomizer, h1 is 20mm-60mm; h3 is 35mm-90mm; h4 is 0mm-10mm; and the atomized water column burst height H is 20mm-40mm.

[0113] Optionally, in this embodiment, h1 is 20mm, 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 55mm or 60mm.

[0114] Optionally, in this embodiment, h3 is 35mm, 40mm, 45mm, 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm or 90mm.

[0115] Optionally, in this embodiment, h4 is 0mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 7mm, 8mm, 9mm, or 10mm. Optionally, in this embodiment, H is 20mm, 25mm, 30mm, 35mm, or 40mm.

[0116] Preferably, in this embodiment, h1 is 45mm, h3 is 55mm, and h4 is 5mm.

[0117] Of course, in other embodiments, the above parameters can also be set to other values ​​as needed.

[0118] Further, see Figures 12-16 In one embodiment, the atomizer body 23 is provided with a connecting ear 22, the inner wall of the atomizing housing 1 is provided with a support member 13, the connecting ear 22 is installed on the support member 13, and there is a gap between the atomizer body 23 and the inner wall of the atomizing housing 1.

[0119] By setting the connecting ear 22 and the support 13 to cooperate, a gap is made between the atomizer body 23 and the inner wall of the atomizing housing 1, so as to avoid excessive vibration of the atomizer 2 being transmitted to the atomizing housing 1 during operation.

[0120] Furthermore, in one embodiment, a buffer 15 is sandwiched between the connecting ear 22 and the support member 13. The buffer 15 is capable of cushioning the vibration of the atomizer body 23.

[0121] Optionally, the buffer 15 is made of rubber.

[0122] Furthermore, to prevent the buffer 15 from shifting after prolonged operation, in this embodiment, the support 13 includes a support body 131, and a plurality of anti-rotation protrusions 132 are provided at intervals on the side of the support body 131 along the circumference of the support body 131. Each anti-rotation protrusion 132 has an abutment protrusion 133 on the upper surface of its free end. The buffer 15 includes a buffer sheet 151, and a plurality of down-turned edges 152 are provided on the side of the buffer sheet 151 along the circumference of the buffer sheet 151. The number of down-turned edges 152 is the same as the number of anti-rotation protrusions 132. A snap-fit ​​groove 153 is formed between two adjacent down-turned edges 152, and the snap-fit ​​groove 153 is snapped into the anti-rotation protrusions 132 one by one. The buffer plate 151 is clamped between the connecting ear 22 and the support body 131. The snap-fit ​​groove 153 and the anti-rotation protrusion 132 are snapped together one by one. The abutment protrusion 133 abuts against the outer edge of the buffer plate 151, further restricting the position of the buffer 15.

[0123] After the locking member 16 passes through the connecting ear 22, the buffer plate 151 and the support body 131 in sequence, the atomizer body 23 is locked and installed.

[0124] Example 3

[0125] This embodiment provides a gas water heater, which includes the condensing heat exchange device of Embodiment 2.

[0126] Specifically, in this embodiment, the gas water heater is a condensing gas water heater.

[0127] The gas water heater provided in this embodiment includes the aforementioned condensing heat exchange device. For example... Figures 6-10 As shown, when the condensing heat exchange device of the gas water heater is working, the high-temperature flue gas is condensed by the condensing heat exchanger 6 in the condensing chamber 41 of the condensing shell 4, and condensate water is generated. The condensate water flows into the atomizing chamber 11, and the flue gas enters the exhaust chamber 31 through the connecting gap and is discharged. The condensate water accumulated in the atomizing chamber 11 is atomized into atomized water under the atomizing effect of the atomizer 2 and discharged through the exhaust chamber 31.

[0128] When the atomizer 2 of the condensation heat exchange device is working, while ensuring atomization efficiency, the installation position and angle of the atomizing head 21 in the atomizer 2 are restricted. On the one hand, this avoids the mutual interference of the atomized water mist generated by each atomizing head 21 due to the small distance between them, resulting in an unsatisfactory overall atomization effect. On the other hand, it can avoid the overall product cost being too high due to the excessive size of the atomizer body 23 and the atomizing shell 1.

[0129] 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.

[0130] 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. An atomizer, characterized in that, include: Atomizer body (23); At least two atomizing heads (21) are provided, all of which are evenly distributed in a ring around the center line of the atomizer body (23). The intersection of the end face center line of all atomizing heads (21) with the center line of the atomizer body (23) is point A, the end face center point of the atomizing head (21) is point B, and the perpendicular intersection of the end face center point of the atomizing head (21) with the center line of the atomizer body (23) is point C. The length of line segment AC is w, the length of line segment BC is d, and the angle between the end face center line of each atomizing head (21) and the center line of the atomizer body (23) is α, tanα=d / w, where the value of d is in the range of 18mm-50mm and the value of α is in the range of 2°-10°.

2. The atomizer according to claim 1, characterized in that, d = 27.5 mm; and / or α = 5°.

3. The atomizer according to claim 1, characterized in that, Two atomizing heads (21) are provided on the atomizer body (23). The two atomizing heads (21) are symmetrically arranged along the central axis of the atomizer body (23), and the central axis of the atomizer body (23) passes through point C.

4. The atomizer according to any one of claims 1 to 3, characterized in that, The atomizing head (21) is tilted downward from the side closer to the center of the atomizer body (23) toward the side farther away from the center of the atomizer body (23).

5. A condensing heat exchanger, characterized in that, include: The atomizer (2) as described in any one of claims 1 to 4; The condenser housing assembly includes an atomizing housing (1) having an atomizing chamber (11), a smoke exhaust housing (3) connected to the upper end of the atomizing housing (1) and having a smoke exhaust chamber (31), and a condenser housing (4) disposed on the side of the smoke exhaust housing (3) and having a condenser chamber (41). The upper end of the atomizing housing (1) and the lower end of the smoke exhaust chamber (31) are spaced apart to form a communication gap, which connects to the condenser chamber (41). The atomizer (2) is disposed inside the atomizing chamber (11). A condensing heat exchanger (6) is disposed in the condensing chamber (41).

6. The condensation heat exchanger according to claim 5, characterized in that, The condensation heat exchange device also includes a flow guide (5), which is annular and installed at the upper end of the atomizing shell (1).

7. The condensation heat exchanger according to claim 6, characterized in that, The horizontal distance between the center point of the end face of the atomizing head (21) and one of the side walls of the atomizing chamber (11) is L. The distance between the center point of the end face of the atomizing head (21) and the upper end face of the guide (5) along the center line extension direction of the atomizer body (23) is m. L = k × m × tanα; where the value of k is in the range of 3-7.

8. The condensation heat exchanger according to claim 6, characterized in that, The guide member (5) includes a guide plate (51) that is inclined relative to the horizontal plane. The guide plate (51) is inclined from top to bottom toward the center of the guide member (5). The angle between the guide plate (51) and the center line of the atomizer body (23) is β, where β = arctan[L-((h1+H)·tanα] / H, h1 is the standard water level when the atomizer is working normally, the standard water level is the vertical distance between the center point of the end face of the atomizing head (21) and the liquid surface, and H is the burst height of the atomized water column.

9. The condensing heat exchanger according to any one of claims 5-8, characterized in that, The atomizer body (23) is provided with a connecting ear (22), and the inner wall of the atomizing shell (1) is provided with a support member (13). The connecting ear (22) is installed on the support member (13), and there is a gap between the atomizer body (23) and the inner wall of the atomizing shell (1). A buffer member (15) is sandwiched between the connecting ear (22) and the support member (13).

10. A gas-fired water heater, characterized in that, Includes the condensation heat exchange device as described in any one of claims 5-9.

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