Flow guide assembly, condensation heat exchange device and gas water heating equipment

Abstract

The utility model belongs to the technical field of heat exchange, and particularly discloses a flow guide assembly, a condensation heat exchange device and gas water heating equipment. The flow guide assembly comprises a mounting frame and flow guide plates, the mounting frame is of a rectangular frame structure, the flow guide plates are arranged on each side of the mounting frame and extend in the length direction of the corresponding edge of the mounting frame, and the flow guide plates incline towards the center direction of the mounting frame from bottom to top; and the included angle of the guide plate relative to the vertical direction can be adjusted. The condensation heat exchange device comprises a condensation shell with an atomization shell and the flow guide assembly, and the installation frame is installed at the upper end of the atomization shell. According to the utility model, the smoothness of water mist and flue gas emission can be improved, and the water mist and flue gas emission effect is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange technology, and in particular to a flow guiding component, a condensation heat exchange device, and a gas-fired hot water equipment. Background Technology

[0002] Gas-fired water heaters heat water by passing the high-temperature flue gas generated by gas combustion through a heat exchanger, thereby exchanging heat between the flue gas and the water flowing through the exchanger. To fully utilize the heat from the flue gas, condensing gas-fired water heaters are becoming increasingly widely used.

[0003] Condensing gas-fired water heaters, compared to conventional gas-fired water heaters, incorporate a condensing heat exchange device. Existing technology provides such a device, which includes a condensing shell, a condensing heat exchanger, and an atomizer. The condensing shell comprises a condensing heat exchanger shell with a condensing chamber, an atomizing shell with an atomizing chamber, and a flue gas shell with an exhaust chamber. The exhaust gas shell is connected to the upper part of the atomizing shell, and the exhaust chamber communicates with the atomizing chamber. The condensing heat exchanger shell is located on one side of the exhaust gas shell, and the side of the exhaust chamber communicates with the condensing chamber. A flue gas inlet is provided on the side of the condensing heat exchanger shell away from the exhaust chamber, and a flue gas outlet is provided at the upper end of the exhaust chamber on the exhaust gas shell. The condensing heat exchanger and the atomizer are both located within the condensing chamber. After heat exchange in the main heat exchanger, the flue gas enters the condensation chamber through the inlet and is condensed and cooled. The cooled flue gas then flows into the exhaust chamber. The condensate formed by condensation flows into the atomization chamber and is atomized by the atomizer to form water mist. The water mist is sprayed upwards into the exhaust chamber and mixes with the flue gas in the exhaust chamber to form relatively large smoke particles. The smoke is then discharged outwards through the exhaust port.

[0004] In existing condensation heat exchange devices, the lower end of the exhaust chamber and the upper end of the atomizing shell are spaced apart to form a gap channel, through which the condensation chamber communicates with the exhaust chamber. However, as the flue gas flows into the gap channel, the lateral flow of the flue gas obstructs the flow of water mist in the atomizing chamber. This causes the upward-sprayed water mist to experience flow inhibition under the pressure of the flue gas flow, resulting in a reduction in the amount and speed of water mist ejected from the atomizing chamber, and even affecting the formation of water mist. Consequently, the mixing effect between water mist and flue gas is weakened, leading to poor mixed emission of flue gas and water mist. Utility Model Content

[0005] One of the technical problems solved by this utility model is to provide a flow guiding component that can effectively solve the problem in the prior art where flue gas emissions affect the upward flow of water mist, resulting in poor flue gas and water mist emission effects.

[0006] The second technical problem solved by this utility model is to provide a condensing heat exchange device that can effectively solve the problem of poor flue gas emission performance of existing condensing heat exchange devices.

[0007] The third technical problem solved by this utility model is to provide a gas-fired water heater that can effectively solve the problem of poor flue gas emission in existing gas-fired water heaters.

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

[0009] A flow guiding assembly is applied to a condensing heat exchange device. The flow guiding assembly includes a mounting frame and a flow guiding plate. The mounting frame has a rectangular frame structure. A flow guiding plate is provided on each side of the mounting frame and extends along the length direction of the corresponding side of the mounting frame. The flow guiding plate is inclined from bottom to top towards the center of the mounting frame, and the included angle of the flow guiding plate relative to the vertical direction is adjustable.

[0010] Compared with the prior art, the flow guiding component of this utility model has the following advantages: Since the angle between the flow guiding plate and the vertical direction can be adjusted, the angle between the flow guiding plate and the vertical direction can be adjusted according to the needs of smoke flow, so as to facilitate the adaptation of the flow guiding angle of the flow guiding plate to atomizers of different sizes and models, improve the flow guiding effect of the flow guiding component, and improve the versatility of the flow guiding component; at the same time, since the mounting frame is a rectangular frame structure, it is beneficial to improve the assembly stability and convenience of the flow guiding component on the atomizer shell.

[0011] In one embodiment, the two ends of the guide plate are rotatably mounted to the mounting frame via mounting shafts, the mounting shafts being horizontally positioned and extending in the same direction as the guide plate.

[0012] In one embodiment, a linkage structure is provided between the corresponding ends of two adjacent guide vanes, and the rotation of the guide vanes drives the adjacent guide vanes to rotate synchronously through the linkage structure.

[0013] And / or, at least one of the mounting shafts extends outward from the mounting bracket and is connected to a rotating element.

[0014] In one embodiment, the linkage structure includes two meshing bevel gears connected to the end of the guide plate, and the axis of the bevel gears is coaxial with the axis of the mounting shaft.

[0015] In one embodiment, the lower end of the guide plate is connected to a mounting shaft, and the bevel gear is a sector gear, with the teeth of the bevel gear protruding from the upper side of the guide plate in a direction away from the mounting shaft.

[0016] And / or, the bevel gear is integrally formed with the corresponding guide plate.

[0017] In one embodiment, the end of the guide plate is provided with a limiting protrusion, and the mounting bracket is provided with an arc-shaped limiting groove. The center of the limiting groove is located on the axis of the mounting shaft, and the limiting protrusion is slidably disposed in the limiting groove.

[0018] In one embodiment, the mounting frame includes a rectangular frame and protrusions at the four corners of the frame. Each guide plate is rotatably mounted on two corresponding protrusions at both ends, and the guide plate is located on the upper side of the frame.

[0019] And / or, on the horizontal projection plane, the projection of the upper side of the guide plate portion is located inside the projection of the mounting bracket.

[0020] The second technical problem mentioned above is solved by the following technical solution:

[0021] A condensation heat exchange device includes a condensation shell having an atomizing shell, and also includes a flow guiding assembly as described above, wherein the mounting bracket is mounted on the upper end of the atomizing shell.

[0022] Compared with the prior art, the condensation heat exchange device of this utility model has the following advantages: By adopting the above-mentioned flow guiding component, when the flue gas in the condensation chamber flows towards the connecting gap, the flue gas flows upward under the guidance of the inclined flow guiding plate, thereby increasing the distance between the flue gas above the atomizing chamber and the mist outlet, avoiding the direct horizontal flow of flue gas which would have a significant impact on the upward flow or even formation of water mist, and ensuring that the water mist generated by the atomizer can flow smoothly into the exhaust chamber, improving the mixing and emission effect of flue gas and water mist; furthermore, since the angle between the flow guiding plate and the vertical direction can be adjusted, the angle between the flow guiding plate and the vertical direction can be adjusted according to the flue gas flow requirements, so as to facilitate the adaptation of the flow guiding angle of the flow guiding plate to atomizers of different sizes and models, improve the flow guiding effect of the flow guiding component, and improve the versatility of the flow guiding component; furthermore, since the mounting frame has a rectangular frame structure, it is beneficial to improve the assembly stability and convenience of the flow guiding component on the atomizing shell.

[0023] In one embodiment, the baffle is rotatably mounted to the mounting frame via a mounting shaft, at least one of the mounting shafts is connected to a rotating member, the rotating member being at least partially located outside the condenser housing and rotating relative to the condenser housing.

[0024] In one embodiment, the condenser housing has an outwardly protruding mounting cylinder portion, the rotating component includes a connecting shaft portion and a knob portion, the connecting shaft portion is rotatably inserted through the mounting cylinder portion and connected to the mounting shaft, and the knob portion is located outside the mounting cylinder portion and is restricted from entering the mounting cylinder portion.

[0025] In one embodiment, one of the end faces of the mounting cylinder and the knob is provided with a protruding locking rib, and the other is provided with a locking groove. Multiple locking grooves are evenly spaced along the circumference of the connecting shaft, and the locking rib can be locked into any of the locking grooves.

[0026] And / or, the outer wall of the mounting cylinder is provided with an angle mark, and multiple angle marks are provided at intervals along the circumference of the mounting cylinder. The knob is provided with an indicator mark, and the angle mark indicates the angle between the guide plate and the vertical direction when the indicator mark points to the angle mark.

[0027] In one embodiment, a seal is provided between the inner wall of the connecting shaft and the mounting cylinder;

[0028] And / or, the flow guiding assembly further includes a limiting member, which is partially inserted into the mounting cylinder and rotatably engaged with the connecting shaft, and the limiting member restricts the rotator from moving axially relative to the mounting cylinder.

[0029] The third technical problem mentioned above is solved by the following technical solution:

[0030] A gas-fired hot water device includes a condensing heat exchanger as described above.

[0031] Compared with the prior art, the gas-fired water heater of this utility model has the following advantages: by adopting the above-mentioned condensing heat exchange device, the flue gas emission effect of the gas-fired water heater can be improved, and the user experience of the gas-fired water heater can be enhanced. Attached Figure Description

[0032] Figure 1 This is a cross-sectional view of the condensation heat exchange device provided in Embodiment 1 of this utility model.

[0033] Figure 2 This is a partial structural schematic diagram of the flow guiding component provided in Embodiment 1 of this utility model;

[0034] Figure 3 for Figure 2 A schematic diagram of the split structure of the middle part;

[0035] Figure 4 for Figure 3 A magnified view of a section at point I;

[0036] Figure 5 This is a schematic diagram of the condensation heat exchange device provided in Embodiment 1 of this utility model;

[0037] Figure 6 for Figure 5 A magnified view of a section at point J;

[0038] Figure 7 This is a cross-sectional view of the condensation heat exchange device provided in Embodiment 1 of this utility model from another perspective;

[0039] Figure 8 for Figure 7 A magnified view of a section at point K;

[0040] Figure 9 A partial structural diagram of the flow guiding component and the disassembled mounting cylinder provided in Embodiment 1 of this utility model;

[0041] Figure 10 This is a schematic diagram of the structure of the rotating component provided in Embodiment 1 of this utility model;

[0042] Figure 11 This is a schematic diagram of the flow guiding component provided in Embodiment 2 of this utility model;

[0043] Figure 12 This is a schematic diagram showing the disassembled structure of the flow guiding component provided in Embodiment 2 of this utility model.

[0044] Label Explanation:

[0045] 100. Flow guiding assembly; 200. Condensing shell; 201. Condensing heat exchange shell; 2011. Condensing chamber; 2012. Smoke inlet; 202. Atomizing shell; 2021. Atomizing chamber; 2022. Mounting boss; 203. Smoke exhaust shell; 2031. Smoke exhaust outer shell; 2032. Smoke exhaust inner shell; 2033. Smoke exhaust chamber; 204. Filter shell; 205. Mounting cylinder; 2051. Limiting insertion hole; 2052. Locking groove; 206. Communicating gap; 300. Condensing heat exchanger; 400. Filter; 500. Atomizer;

[0046] 1. Mounting bracket; 11. Enclosure frame; 12. Boss; 121. Rotary shaft hole; 122. Limiting groove; 13. Fixing post; 14. Fixing through hole;

[0047] 2. Guide vane; 3. Mounting shaft; 4. Linkage structure; 41. Bevel gear; 5. Limiting protrusion; 6. Connecting part;

[0048] 7. Rotating component; 71. Connecting shaft; 711. Sealing ring groove; 712. Limiting ring groove; 713. Connecting groove; 72. Knob; 73. Locking rib;

[0049] 8. Limiting component; 81. Limiting arm; 811. Insertion rod; 812. Snap ring; 82. Limiting head;

[0050] 9. Sealing components. 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", "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] This embodiment provides a condensing heat exchange device that can be applied to gas-fired water heaters to improve the flue gas emission effect of the condensing heat exchange device and enhance the performance of both the condensing heat exchange device and the gas-fired water heater.

[0056] like Figure 1As shown, in this embodiment, the condensation heat exchange device includes a condenser shell 200, a condenser heat exchanger 300, and an atomizer 500. The condenser shell 200 includes a smoke exhaust shell 203, an atomizing shell 202, and a condenser heat exchange shell 201. The smoke exhaust shell 203 is connected to the upper part of the atomizing shell 202 and has a smoke exhaust chamber 2033 inside. The upper end of the smoke exhaust shell 203 is provided with a smoke exhaust port communicating with the smoke exhaust chamber 2033. The atomizing shell 202 has an atomizing chamber 2021 inside. The upper end of the atomizing chamber 2021 communicates with the smoke exhaust chamber 2033 and has a water inlet on its side. The condenser heat exchange shell 201 is connected to the side of the smoke exhaust shell 203 and has a condenser chamber 2011. The condenser heat exchange shell 201 is provided with a smoke inlet 2012 communicating with the condenser chamber 2011. The lower end of the smoke exhaust chamber 2033 is spaced apart from the upper end of the atomizing shell 202 to form a communication gap 206. The condenser chamber 2011 communicates with the smoke exhaust chamber 2033 through the communication gap 206. A condenser heat exchanger 300 is installed in a condenser chamber 2011 and both ends of the condenser heat exchanger 300 extend out of the condenser shell 200. An atomizer 500 is installed in an atomizing chamber 2021 and the water inlet of the atomizer 500 is connected to the atomizing chamber 2021. The mist outlet of the atomizer 500 is set upward.

[0057] After being heated by the main heat exchanger of the gas-fired hot water equipment, the flue gas enters the condensing chamber 2011 through the flue gas inlet 2012 and is cooled by heat exchange with the condensing heat exchanger 300. The cooled flue gas flows into the exhaust chamber 2033 through the connecting gap 206. The condensed water flows into the atomizing chamber 2021 through the water inlet. The water in the atomizing chamber 2021 is atomized by the atomizer 500 to form water mist, which is then sprayed upwards into the exhaust chamber 2033 and mixed with the flue gas in the exhaust chamber 2033 to form smoke. The smoke is discharged through the exhaust port.

[0058] In one embodiment, the condenser housing 200 further includes a filter housing 204 connected to the lower end of the condenser heat exchange housing 201. One side of the filter housing 204 is connected to the atomizing housing 202. A filter chamber is provided inside the filter housing 204, and a filter 400 is installed inside the filter chamber. The filter chamber is connected to the atomizing chamber 2021 through a water inlet. The upper end of the filter chamber is connected to the condenser chamber 2011. The condensate formed by condensation flows downward into the filter chamber and is filtered by the filter 400. The filtered condensate flows into the atomizing chamber 2021 through the water inlet. By setting the filter 400, the problem of excessively corrosive condensate leading to direct discharge and significant environmental pollution can be avoided. The filter 400 can be, but is not limited to, existing structures capable of condensate filtration such as a neutralizer.

[0059] The exhaust housing 203 includes an exhaust outer shell 2031 and an exhaust inner shell 2032. The exhaust outer shell 2031 is connected to the upper part of the condenser heat exchanger shell 201 and the atomizing shell 202. The exhaust inner shell 2032 is inserted inside the exhaust outer shell 2031 and its upper end extends out of the exhaust outer shell 2031. The exhaust inner shell 2032 surrounds and forms an exhaust cavity 2033. The outer wall of the exhaust inner shell 2032 facing the condenser heat exchanger 300 forms a cavity wall of the condenser cavity 2011. The upper ends of the exhaust inner shell 2032 and the atomizing shell 202 are spaced apart to form a communication gap 206 between the upper ends of the exhaust inner shell 2032 and the atomizing shell 202.

[0060] It is worth noting that the specific structure of the condenser shell 200, atomizer 500, condenser heat exchanger 300 and filter 400 and the assembly mechanism of their mutual structures can be set with reference to the existing technology. This is not the focus of this utility model and will not be limited or elaborated here.

[0061] like Figures 1 to 3 As shown, in order to reduce the interference of flue gas flow on the upward flow of water mist, in this embodiment, a flow guiding component 100 is provided at the upper end of the atomizing shell 202. The flow guiding component 100 is used to guide the flue gas flowing out of the condensation chamber 2011 to flow upward into the exhaust chamber 2033 and to guide the water mist flowing out of the atomizing chamber 2021 to flow into the exhaust chamber 2033.

[0062] Specifically, the flow guiding assembly 100 includes a mounting frame 1 and flow guiding plates 2. The mounting frame 1 has a rectangular ring structure. The flow guiding plates 2 are arranged on each of the four sides of the mounting frame 1 and extend along the length direction of the corresponding side of the mounting frame 1. Each flow guiding plate 2 is inclined from bottom to top towards the center of the mounting frame 1, and the included angle of the flow guiding plate 2 relative to the vertical direction can be adjusted. The mounting frame 1 is installed on the upper end of the atomizing housing 202, and the flow guiding plates 2 are located between the mounting frame 1 and the lower end of the exhaust chamber 2033.

[0063] That is, the flow guiding component 100 and condensation heat exchange device provided in this embodiment, when the flue gas in the condensation chamber 2011 flows towards the connecting gap 206, the flue gas flows upward under the guidance of the inclined flow guiding plate 2, thereby increasing the distance between the flue gas above the atomizing chamber 2021 and the mist outlet, avoiding the direct lateral flow of flue gas which would have a significant impact on the upward flow or even formation of the water mist, and ensuring that the water mist generated by the atomizer 500 can flow smoothly into the exhaust chamber 2033, thereby improving the combination of flue gas and water mist. The mixed emission effect is improved; furthermore, since the angle between the guide plate 2 and the vertical direction is adjustable, the angle between the guide plate 2 and the vertical direction can be adjusted according to the needs of smoke guiding, so as to facilitate the adaptation of the guiding angle of the guide plate 2 to atomizers 500 of different sizes and models, improve the guiding effect of the guiding component 100, and improve the versatility of the guiding component 100; furthermore, since the mounting bracket 1 has a rectangular frame structure, it is beneficial to improve the assembly stability and convenience of the guiding component 100 on the atomizing shell 202.

[0064] On the horizontal projection plane, the upper projection of the guide plate 2 is located inside the projection of the mounting bracket 1, and on the horizontal projection plane, the upper projection of the guide plate 2 is located inside the projection of the atomizing chamber 2021. This arrangement allows the water mist at the outlet edge of the atomizing chamber 2021 to flow towards the center of the guide assembly 100 under the guiding action of the guide plate 2, thereby better guiding the water mist generated by the atomizer 500 upward to the exhaust chamber 2033, preventing the water mist from flowing outside the exhaust chamber 2033, and further improving the mixing and emission effect of smoke and water mist.

[0065] In one embodiment, the guide plate 2 is rotatably mounted on the mounting frame 1, and the axis of rotation of the guide plate 2 is horizontally set and extends along the corresponding side of the mounting frame 1. This facilitates the adjustment of the angle between the guide plate 2 and the vertical direction by rotating the guide plate 2 relative to the mounting frame 1, thereby improving the convenience of adjustment and reducing the difficulty of adjustment.

[0066] In another embodiment, the angle between the guide plate 2 and the mounting bracket 1 and the vertical direction can be adjusted during the assembly process. For example, the guide plate 2 has a fixed shaft protruding from both ends, and the sidewall of the fixed shaft has a rib. The rib can be one or multiple ribs spaced apart circumferentially along the fixed shaft. The mounting bracket 1 has a main shaft hole at a corresponding position, and the hole wall of the main shaft hole has limiting holes spaced apart circumferentially along the main shaft hole. The fixed shaft can be inserted into the main shaft hole, and the rib can be inserted into any of the limiting holes. Thus, by selectively inserting the rib into one of the limiting holes, the angle of the guide plate 2 can be adjusted.

[0067] To improve the ease of installation of the air deflector 2, the mounting frame 1 includes a frame portion 11 and boss portions 12. The frame portion 11 has a rectangular frame structure, and each of the four corners of the frame portion 11 has a boss portion 12 facing upwards. The air deflector 2 is located on the upper side of the frame portion 11 and is rotatably mounted on the two boss portions 12 at both ends. By providing the boss portions 12, it is convenient to realize the rotatable installation of the air deflector 2 while avoiding interference between the air deflector 2 and the mounting frame 1.

[0068] In one embodiment, to improve the installation stability and reliability of the mounting bracket 1 on the atomizing housing 202, the mounting bracket 1 further includes fixing post portions 13 disposed at the four corners of the frame portion 11. The fixing post portions 13 extend downward and are vertically connected with fixing through holes 14. The fixing through holes 14 are connected upward through the boss portion 12. Mounting bosses 2022 are provided on the inner sides of the four corners of the atomizing housing 202. Threaded holes are provided on the mounting bosses 2022. The threaded holes are directly connected to the fixing through holes 14. The fixing post portions 13 and the mounting bosses 2022 are fastened by fasteners passing through the fixing through holes 14 and the threaded holes.

[0069] In other embodiments, the mounting bracket 1 can be connected to the atomizing housing 202 in other ways. For example, the frame portion 11 can be connected to the upper end of the atomizing housing 202 by snap-fit ​​or screw connection. This utility model does not limit or elaborate on the specific installation and connection methods between the mounting bracket 1 and the atomizing housing 202.

[0070] like Figures 2 to 4 As shown, in one embodiment, the boss portion 12 is provided with a pivot hole 121, and the two ends of the guide plate 2 are provided with mounting shafts 3. The mounting shafts 3 are rotatably inserted into the pivot hole 121 to realize the rotational installation of the guide plate 2 on the mounting frame 1.

[0071] In one embodiment, a linkage structure 4 is provided between two adjacent guide vanes 2. The rotation of one guide vane 2 drives the other guide vanes 2 to rotate synchronously through the linkage structure 4. This can better ensure the synchronization of the adjustment of the four guide vanes 2, effectively simplify the adjustment operation, and improve the convenience and efficiency of adjustment. In other embodiments, each guide vane 2 can be provided with a corresponding rotating component 7, that is, each guide vane 2 can be adjusted independently.

[0072] In one embodiment, the linkage structure 4 includes two meshing bevel gears 41, which are respectively mounted on opposite ends of two adjacent guide plates 2. The rotation axes of the two bevel gears 41 are coaxially arranged with the corresponding mounting shafts 3. Thus, when the guide plate 2 rotates, it drives the corresponding bevel gear 41 to rotate, and then through the meshing of the two bevel gears 41, it drives the adjacent guide plates 2 to rotate, thereby realizing the linkage rotation of all guide plates 2. This linkage structure 4 has strong transmission stability and can effectively improve the stability and reliability of adjustment.

[0073] In another embodiment, the linkage structure 4 includes a meshing worm gear and a worm, the worm being coaxially connected to the mounting shaft 3 of a guide plate 2, and the worm gear being mounted on an adjacent guide plate 2, thereby enabling the linkage of two adjacent guide plates 2.

[0074] To avoid interference between the linkage structure 4 and the mounting frame 1, a mounting shaft 3 is provided at the lower end of the guide plate 2. The bevel gear 41 is a sector gear, with the teeth of the sector gear extending out of the upper side of the guide plate 2 in a direction away from the mounting shaft 3. This reduces the footprint of the linkage structure 4 and the space required for the bevel gear 41 to rotate, preventing interference between the bevel gear 41 and the mounting frame 1 during rotation. It also avoids the need to reserve a large gap between the mounting shaft 3 and the upper end of the frame 11 for the installation and rotation of the bevel gear 41, improving the overall structural compactness of the guide assembly 100 and thus reducing the overall footprint of the guide assembly 100.

[0075] In one embodiment, the bevel gear 41 is integrally formed with the corresponding guide plate 2, thereby further improving the overall structural compactness of the guide assembly 100. In other embodiments, the bevel gear 41 and the guide plate 2 are separately disposed, and the bevel gear 41 is fixedly installed at the end of the guide plate 2 or fixedly sleeved on the mounting shaft 3.

[0076] In one embodiment, a limiting protrusion 5 protrudes from the end of the guide plate 2, and an arc-shaped limiting groove 122 is provided on the mounting bracket 1. The center of the limiting groove 122 is located on the axis of the mounting shaft 3, and the limiting protrusion 5 is slidably disposed in the limiting groove 122. Thus, the angle adjustment range of the guide plate 2 can be limited by the cooperation of the limiting protrusion 5 and the limiting groove 122.

[0077] When the limiting protrusion 5 is located at the first end of the limiting groove 122, the guide plate 2 has a first angle relative to the vertical direction; when the limiting protrusion 5 is located at the second end of the limiting groove 122, the guide plate 2 has a second angle relative to the vertical direction. The guide plate 2 can be adjusted between the first angle and the second angle. In one embodiment, the first angle is 10° to 30°, and the second angle is 50° to 85°.

[0078] Furthermore, the pivot hole 121 penetrates the outer wall of the boss portion 12 to form an installation inlet and outlet, and the mounting shaft 3 can enter and exit the pivot hole 121 through the installation inlet and outlet to improve the ease of disassembly and assembly of the guide plate 2 on the mounting portion.

[0079] like Figures 4 to 8As shown, to improve the convenience of adjustment operations, in one embodiment, at least one mounting shaft 3 has a rotating member 7 connected to its end away from the guide plate 2. The rotating member 7 extends outward from the mounting bracket 1 and can rotatably extend outward from the condenser housing 200. Therefore, after the condenser heat exchanger is assembled, the operator can rotate the mounting shaft 3 by operating the rotating member 7, thereby rotating the guide plate 2 to adjust the flow angle, improving the convenience and flexibility of the adjustment operation.

[0080] In other embodiments, the guide angle of the guide plate 2 can be adjusted during the assembly of the condensing heat exchange device according to the usage environment and the model of the atomizer 500, so that the guide angle of the guide plate 2 is always the same during the use of the condensing heat exchange device.

[0081] In one embodiment, a connecting portion 6 is coaxially connected to the end of the mounting shaft 3 away from the guide plate 2, and the connecting portion 6 is located on the outside of the mounting bracket 1; the cross-sectional area of ​​the connecting portion 6 is larger than the cross-sectional area of ​​the mounting shaft 3, and the connecting portion 6 is detachably connected to the rotating component 7. By providing the connecting portion 6, the mating dimensions with the rotating component 7 can be increased, thereby improving the assembly stability and reliability of the rotating component 7 and the mounting shaft 3.

[0082] The rotating component 7 has a connecting groove 713, and the connecting part 6 is inserted into the connecting groove 713 to improve assembly convenience and reliability. Furthermore, the cross-sectional area of ​​the connecting groove 713 is a non-circular cross-section, and the shape of the connecting part 6 is consistent with the shape of the connecting groove 713. This prevents the connecting part 6 and the rotating component 7 from rotating relative to each other, thereby ensuring the rotational consistency of the mounting shaft 3 and the rotating component 7.

[0083] In one embodiment, the connecting groove 713 is a spline groove, and the connecting part 6 is a spline shaft structure. In other embodiments, the cross-sections of the connecting groove 713 and the connecting part 6 can be D-shaped, rectangular, or other shapes. In yet another embodiment, the connecting part 6 and the rotating member 7 can also be fastened by screws inserted radially into both.

[0084] In one embodiment, two mounting shafts 3, located diagonally opposite to each other and extending in opposite directions, are each provided with a connecting part 6. Each connecting part 6 can be connected to the rotating part 7, thereby facilitating the setting of the mounting position of the rotating part 7 on the condenser housing 200 according to requirements and improving assembly flexibility. At the same time, this arrangement allows the connecting part 6 to be connected to the rotating part 7 even after the mounting frame 1 has rotated horizontally 180° within the condenser housing 200, improving the installation flexibility of the flow guiding assembly 100.

[0085] like Figures 8 to 10As shown, to improve the stability and reliability of the rotating component 7, in one embodiment, the condenser housing 200 has an outwardly protruding mounting cylinder 205. The rotating component 7 rotatably passes through the mounting cylinder 205, with one end of the rotating component 7 coaxially connected to the mounting shaft 3, and the other end of the rotating component 7 extending beyond the mounting cylinder 205 for operator control. By providing the mounting cylinder 205, the mating length between the rotating component 7 and the condenser housing 200 can be increased, thereby improving the stability and reliability of the rotating component 7 on the condenser housing 200, and enhancing the operational stability and reliability of the rotating component 7.

[0086] In one embodiment, the rotating member 7 includes a connecting shaft portion 71 and a knob portion 72 connected together. The connecting shaft portion 71 rotatably passes through the mounting cylinder portion 205 and is connected to the mounting shaft 3. The knob portion 72 is located outside the mounting cylinder portion 205 and is restricted from entering the mounting cylinder portion 205. This arrangement can limit the depth of the rotating member 7 inserted into the mounting cylinder portion 205, preventing the rotating member 7 from being completely submerged in the mounting cylinder portion 205, which would cause operational inconvenience and ensure the ease of operation of the rotating member 7. At the same time, it avoids the rotating member 7 being pressed into the condenser housing 200, which would cause compression to the mounting shaft 3. Specifically, the cross-sectional area of ​​the connecting shaft portion 71 is smaller than the cross-sectional area of ​​the rotating member, and the end face of the knob portion 72 facing the connecting shaft portion 71 forms a limiting end face. A connecting groove 713 is provided at the end of the connecting shaft portion 71 away from the knob portion 72.

[0087] To prevent leakage of flue gas and water mist from the mating position between the rotating part 7 and the condenser housing 200, in one embodiment, a seal 9 is provided between the connecting shaft 71 and the inner wall of the mounting cylinder 205. The seal 9 seals the gap between the connecting shaft 71 and the inner wall of the mounting cylinder 205 to prevent leakage of internal flue gas and water mist. Furthermore, a sealing ring groove 711 is provided on the connecting shaft 71, and the seal 9 is disposed within the sealing ring groove 711 with its outer ring protruding beyond the outer side of the sealing ring groove 711 to abut against the inner wall of the mounting cylinder 205.

[0088] To prevent the rotating component 7 from being pulled out relative to the mounting tube and thus detaching from the connecting part 6, in one embodiment, the guide component further includes a limiting component 8. The limiting component 8 is partially inserted into the mounting cylinder 205 and engaged with the connecting shaft, thus restricting the axial movement of the rotating component 7 relative to the mounting cylinder 205. By providing the limiting component 8, the axial movement of the rotating component 7 relative to the mounting cylinder 205 can be restricted, thereby preventing the rotating component 7 from detaching from the connecting part 6, ensuring the stability and reliability of the connection between the rotating component 7 and the mounting shaft 3, and thus ensuring the driving stability and reliability of the guide component by the rotating component 7. The limiting component 8 is inserted into the mounting cylinder 205 and engaged or plugged into the connecting shaft, which facilitates the separation of the limiting component 8 relative to the mounting cylinder 205 and the rotating component 7, improving the ease of disassembly and assembly of the rotating component 7.

[0089] In one embodiment, a limiting annular groove 712 is provided on the connecting shaft portion 71, and a limiting insertion hole 2051 communicating with the inner cavity is provided on the outer side wall of the mounting cylinder portion 205. The limiting member 8 includes a limiting arm portion 81, which is radially inserted into the limiting insertion hole 2051 and extends into the limiting annular groove 712. This limits the contact between the arm portion 81 and the opposite side walls of the limiting annular groove 712, thereby restricting the axial movement of the connecting shaft portion 71 relative to the mounting cylinder portion 205.

[0090] Preferably, two limiting arms 81 are provided, located on opposite sides of the connecting shaft 71, to improve the limiting stability and reliability of the limiting member 8 in limiting the connecting shaft 71. A limiting head 82 is connected between one end of the two limiting arms 81. The limiting head 82 is limited to pass through the limiting insertion hole 2051 to ensure that the limiting head 82 is always located outside the mounting cylinder 205, thereby facilitating the insertion and removal restriction of the limiting member 8. The extending direction of the limiting head 82 is perpendicular to the extending direction of the limiting arm 81, and the limiting head 82 fits against the outer wall of the mounting cylinder 205 to prevent the limiting member 8 from easily loosening out of the mounting cylinder 205, ensuring the setting stability and reliability of the limiting member 8.

[0091] In one embodiment, the limiting arm 81 includes a retaining ring 812 and a plug rod 811 connected to both ends of the retaining ring 812. The retaining ring 812 has an arc-shaped ring structure, and the shape of the retaining ring 812 is adapted to the bottom shape of the limiting ring groove 712. The retaining rings 812 of the two limiting arms 81 are arranged opposite to each other, so that the retaining rings 812 of the two limiting arms 81 surround the position where the limiting ring groove 712 is opened on the connecting shaft 71. This allows the connecting shaft 71 to rotate relative to the limiting member 8, while increasing the cooperation length between the limiting member 8 and the connecting shaft 71, thereby improving the limiting effect of the limiting member 8 on the rotating member 7.

[0092] In one embodiment, limiting holes 2051 are provided on both opposite sides of the mounting cylinder 205. The limiting holes 2051 are arc-shaped holes. Two limiting arms 81 are inserted into the limiting holes 2051 on the same side, and the two insertion rods 811 of each limiting arm 81 are respectively inserted into the two limiting holes 2051, so as to improve the ease of insertion of the limiting member 8 into the mounting cylinder 205.

[0093] To improve the stability and reliability of the angle adjustment of the guide plate 2 by the rotating component 7, in one embodiment, a locking rib 73 is protruding from one end face of the mounting cylinder 205 and the end face of the knob 72, and a locking groove 2052 is provided on the other. Multiple locking grooves 2052 are evenly spaced along the circumference of the connecting shaft 71, and the locking rib 73 can engage with any of the locking grooves 2052. This allows the rotating component 7 to be restricted from rotating freely after adjustment by the cooperation of the locking rib 73 and the locking groove 2052, better ensuring the stability and reliability of the guide assembly 100. Simultaneously, since multiple locking grooves 2052 are evenly spaced along the circumference of the connecting shaft 71, the angle of rotation of the rotating component 7 can be determined by controlling the number of locking grooves 2052 that the locking rib 73 passes through during adjustment, thereby determining the adjusted angle of the guide plate 2.

[0094] To further improve the reliability and stability of adjustment, in one embodiment, multiple locking ribs 73 are evenly and spaced along the circumference of the mounting cylinder 205, and the number of locking grooves 2052 is a multiple of the number of locking ribs 73. This increases the number of locking ribs 73 engaging with locking grooves 2052 during each adjustment process, thereby increasing the contact area between the rotating component 7 and the mounting cylinder 205 and further improving the adjustment stability and reliability of the rotating component 7.

[0095] In one embodiment, the locking rib 73 is disposed on the end face of the knob portion 72, and the locking groove 2052 is disposed on the end face of the mounting cylinder portion 205 to improve installation convenience. In other embodiments, the locking rib 73 may be disposed on the end face of the mounting cylinder portion 205, and the locking groove 2052 may be disposed on the end face of the knob portion 72.

[0096] To prevent the engagement of the locking rib 73 and the locking groove 2052 from affecting the rotation of the rotating component 7, in one embodiment, the cross-section of the locking rib 73 is arc-shaped, and the shape of the locking groove 2052 is consistent with the shape of the locking rib 73. This facilitates the rotation of the locking rib 73 as the rotating component 7 rotates, allowing it to pass over the end face of the mounting cylinder 2052 and enter the other locking groove 2052. The number of locking grooves 2052 is preferably 15 to 30 to reduce the distance between adjacent locking grooves 2052, thereby improving adjustment accuracy and smoothness.

[0097] To further improve adjustment accuracy, in one embodiment, an angle mark is provided on the outer wall of the mounting cylinder 205. Multiple angle marks are spaced apart circumferentially along the mounting cylinder 205. An indicator mark is provided on the knob 72. The angle mark indicates the angle between the guide plate 2 and the vertical direction when the indicator mark points to the angle mark. This allows the angle of the guide plate 2 to be determined by the combination of the angle mark and the indicator mark, improving adjustment convenience and reliability.

[0098] The angle markings include angle scale lines and angle value markings. Multiple angle scale lines are evenly spaced along the circumference of the mounting cylinder 205, and at least some of the angle scale lines correspond to angle value markings. The angle scale can be machined or screen-printed onto the mounting cylinder 205. The indicator markings can be pointing arrows towards the mounting cylinder 205 or other structures that indicate a specific angle.

[0099] This embodiment also provides a gas-fired water heater, including the aforementioned condensing heat exchanger. By employing the aforementioned condensing heat exchanger, the gas-fired water heater provided in this embodiment can reduce the processing and maintenance costs of the gas-fired water heater and improve the user experience.

[0100] It is worth noting that the assembly structure of the condensing heat exchanger in the gas-fired water heater and other structures in the gas-fired water heater can be set with reference to the existing technology. This is not the focus of the improvement of this utility model, and will not be elaborated here.

[0101] Example 2

[0102] This embodiment provides a condensing heat exchange device, and the basic structure of the condensing heat exchange device provided in this embodiment is the same as that in the above embodiments, with only some differences in the settings. This embodiment will not repeat the same structure as the above embodiments.

[0103] like Figure 11 and Figure 12 As shown, in this embodiment, the end of the guide plate 2 has a protruding limiting protrusion 5, and the mounting bracket 1 has a limiting groove 122. Multiple limiting grooves 122 are spaced apart around the axis of the mounting shaft 3, and the limiting protrusion 5 can be engaged in any of the limiting grooves 122. Thus, the guide plate 2 can be fixed at the adjusted angle through the cooperation of the limiting protrusion 5 and the limiting groove 122, preventing the guide plate 2 from shaking arbitrarily.

[0104] Specifically, the limiting groove 122 is provided on the boss portion 12, and the number of limiting grooves 122 is preferably 2 to 5, specifically 2, 3, 4 and 5.

[0105] In this embodiment, two adjacent limiting grooves 122 are connected, and the width at the connection position is smaller than the diameter of the limiting groove 122, so as to ensure the stability of the limiting protrusion 5 in the limiting groove 122.

[0106] In this embodiment, a linkage structure 4 can be set between two adjacent guide vanes 2 to achieve linkage setting, or each guide vane 2 can be adjusted individually.

[0107] It is worth noting that the flow guiding component 100 provided in this embodiment is suitable for adjusting the flow guiding angle of the flow guiding component during the assembly process of the condensation heat exchange device, so as to avoid the cooperation between the limiting protrusion and the limiting groove 122 affecting the rotation operation of the rotating component 7.

[0108] 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.

[0109] 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 flow guiding component, characterized in that, The flow guiding assembly is applied to the condensation heat exchange device. The flow guiding assembly includes a mounting frame (1) and a flow guiding plate (2). The mounting frame (1) has a rectangular frame structure. The flow guiding plate (2) is provided on each side of the mounting frame (1) and extends along the length direction of the corresponding side of the mounting frame (1). The flow guiding plate (2) is inclined from bottom to top towards the center of the mounting frame (1), and the angle of the flow guiding plate (2) relative to the vertical direction can be adjusted.

2. The flow guiding component according to claim 1, characterized in that, The two ends of the guide plate (2) are rotatably mounted on the mounting frame (1) via the mounting shaft (3). The mounting shaft (3) is horizontally set and extends in the same direction as the extension direction of the guide plate (2).

3. The flow guiding component according to claim 2, characterized in that, A linkage structure (4) is provided between the corresponding ends of two adjacent guide plates (2), and the rotation of the guide plate (2) drives the adjacent guide plates (2) to rotate synchronously through the linkage structure (4); And / or, at least one of the mounting shafts (3) extends out of the outside of the mounting bracket (1) and is connected to a rotating element (7).

4. The flow guiding component according to claim 3, characterized in that, The linkage structure (4) includes two meshing bevel gears (41), which are connected to the ends of the corresponding guide plate (2), and the axis of the bevel gears (41) is coaxial with the axis of the mounting shaft (3).

5. The flow guiding component according to claim 4, characterized in that, The lower end of the guide plate (2) is connected to the mounting shaft (3), and the bevel gear (41) is a sector gear. The teeth of the bevel gear (41) protrude from the upper side of the guide plate (2) in a direction away from the mounting shaft (3). And / or, the bevel gear (41) is integrally formed with the corresponding guide plate (2).

6. The flow guiding component according to any one of claims 2-5, characterized in that, The end of the guide plate (2) is provided with a limiting protrusion (5), and the mounting bracket (1) is provided with an arc-shaped limiting groove (122). The center of the limiting groove (122) is located on the axis of the mounting shaft (3), and the limiting protrusion (5) is slidably disposed in the limiting groove (122).

7. The flow guiding component according to any one of claims 1-5, characterized in that, The mounting frame (1) includes a rectangular frame (11) and protrusions (12) at the four corners of the frame (11). Each guide plate (2) is rotatably mounted on the two corresponding protrusions (12) at both ends. The guide plate (2) is located on the upper side of the frame (11). And / or, on the horizontal projection plane, the projection of the upper side of the guide plate (2) is located inside the projection of the mounting bracket (1).

8. A condensation heat exchange device, comprising a condensation shell (200) having an atomizing shell (202), characterized in that, It also includes the flow guiding component as described in any one of claims 1-7, wherein the mounting bracket (1) is mounted on the upper end of the atomizing housing (202).

9. The condensation heat exchanger according to claim 8, characterized in that, The guide plate (2) is rotatably mounted on the mounting frame (1) via a mounting shaft (3). At least one of the mounting shafts (3) is connected to a rotating member (7). The rotating member (7) is at least partially located outside the condenser housing (200) and rotates relative to the condenser housing (200).

10. The condensation heat exchanger according to claim 9, characterized in that, The condenser housing (200) has an outwardly protruding mounting cylinder (205). The rotating component (7) includes a connecting shaft (71) and a knob (72) connected together. The connecting shaft (71) is rotatably inserted through the mounting cylinder (205) and connected to the mounting shaft (3). The knob (72) is located outside the mounting cylinder (205) and is restricted from entering the mounting cylinder (205).

11. The condensation heat exchanger according to claim 10, characterized in that, One of the end faces of the mounting cylinder (205) and the knob (72) is provided with a locking rib (73), and the other is provided with a locking groove (2052). Multiple locking grooves (2052) are evenly spaced along the circumference of the connecting shaft (71), and the locking rib (73) can be locked into any of the locking grooves (2052). And / or, the outer wall of the mounting cylinder (205) is provided with an angle mark, and multiple angle marks are provided at intervals along the circumference of the mounting cylinder (205). The knob (72) is provided with an indicator mark, and the angle mark indicates the angle between the guide plate (2) and the vertical direction when the indicator mark points to the angle mark.

12. The condensation heat exchanger according to claim 10, characterized in that, A sealing element (9) is provided between the inner wall of the connecting shaft portion (71) and the mounting cylinder portion (205); And / or, the flow guiding assembly further includes a limiting member (8), which is partially inserted into the mounting cylinder (205) and rotatably engaged with the connecting shaft (71), and the limiting member (8) restricts the rotating member (7) from moving axially relative to the mounting cylinder (205).

13. A gas-fired hot water device, characterized in that, Includes the condensing heat exchange device as described in any one of claims 8-12.

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