Condensing heat exchanger and wall-hanging stove equipment

Abstract

The invention relates to a condensing heat exchanger and wall-hanging stove equipment, the condensing heat exchanger comprises a shell, the shell is provided with a mounting space, an air inlet and an air outlet, and the air inlet, the mounting space and the air outlet are sequentially communicated to form an air circulation path; the condensation heat exchange assembly is located in the installation space, is provided with a heating water inlet, a heating water outlet, a bathroom water inlet and a bathroom water outlet, and comprises a first heat exchange pipe set and a second heat exchange pipe set which are located in the air circulation path; the first heat exchange pipe set is communicated with the heating water inlet and the heating water outlet to form a heating heat exchange circulation loop, and the second heat exchange pipe set is communicated with the bathroom water inlet and the bathroom water outlet to form a bathroom heat exchange circulation loop.

Description

Technical Field

[0001] This application relates to the technical field of wall-mounted boilers, and in particular, to a condensing heat exchanger and a wall-mounted boiler device. Background Art

[0002] The condensing heat exchanger in a wall-mounted boiler is one of the core components of a modern high-efficiency and energy-saving heating system.

[0003] Among them, during the combustion process in the combustion chamber of the wall-mounted boiler, high-temperature flue gas is generated. After the generated high-temperature flue gas enters the condensing heat exchanger, the condensing heat exchanger utilizes the latent heat released by the condensation of water vapor in the high-temperature flue gas to improve the thermal efficiency of the system.

[0004] However, the traditional condensing heat exchanger can only exchange heat for heating water and cannot exchange heat for sanitary hot water. Summary of the Invention

[0005] This application provides a condensing heat exchanger and a wall-mounted boiler device to solve the technical problem that the traditional condensing heat exchanger can only exchange heat for heating water and cannot exchange heat for sanitary hot water.

[0006] In a first aspect, this application provides a condensing heat exchanger, which is applied to a wall-mounted boiler device. The condensing heat exchanger includes:

[0007] A housing, the housing is provided with an installation space, an air inlet and an air outlet, and the air inlet, the installation space and the air outlet are sequentially connected to form an air flow path; and

[0008] A condensing heat exchange assembly, the condensing heat exchange assembly is located in the installation space, the condensing heat exchange assembly is provided with a heating water inlet, a heating water outlet, a sanitary hot water inlet and a sanitary hot water outlet, the condensing heat exchange assembly includes a first heat exchange tube group and a second heat exchange tube group both located in the air flow path, the first heat exchange tube group is connected to the heating water inlet and the heating water outlet and forms a heating heat exchange circulation loop, and the second heat exchange tube group is connected to the sanitary hot water inlet and the sanitary hot water outlet and forms a sanitary hot water heat exchange circulation loop.

[0009] In some embodiments, the first heat exchange tube group is close to the air inlet, and the second heat exchange tube group is close to the air outlet.

[0010] In some embodiments, the first heat exchange tube group includes a plurality of first heat exchange tubes, and the plurality of first heat exchange tubes are all connected to the heating water inlet and the heating water outlet and form a heating heat exchange circulation loop;

[0011] The second heat exchange tube group includes a plurality of second heat exchange tubes, and the plurality of second heat exchange tubes are all connected to the sanitary hot water inlet and the sanitary hot water outlet and form a sanitary hot water heat exchange circulation loop.

[0012] In some embodiments, the diameter of the first heat exchange tube is greater than that of the second heat exchange tube.

[0013] In some embodiments, the number of the first heat exchange tubes is greater than that of the second heat exchange tubes.

[0014] In some embodiments, the extending direction of each first heat exchange tube is the same as that of each second heat exchange tube.

[0015] In some embodiments, two adjacent first heat exchange tubes are arranged at intervals, and a plurality of the first heat exchange tubes are arranged in an array; and / or

[0016] Two adjacent second heat exchange tubes are arranged at intervals, and a plurality of the second heat exchange tubes are arranged in an array.

[0017] In some embodiments, the heating water inlet, the heating water outlet, the bathroom water inlet and the bathroom water outlet are all located on the same side of the housing.

[0018] In some embodiments, the housing is further provided with a condensate drain port, and the condensate drain port communicates with the installation space and is located below the condensate heat exchange assembly.

[0019] In a second aspect, the present application provides a wall-mounted boiler device, and the wall-mounted boiler device includes:

[0020] A condensate heat exchanger as described in any one of the above; and

[0021] A heater and a main heat exchanger, where the heater is used to heat the main heat exchanger, and the main heat exchanger communicates with the first heat exchange tube group and the second heat exchange tube group.

[0022] The above technical solutions provided by the embodiments of the present application have the following advantages compared with the prior art:

[0023] The condensate heat exchanger provided by the embodiment of the present application includes a housing, the housing is provided with an installation space, an air inlet and an air outlet, and the air inlet, the installation space and the air outlet are sequentially communicated to form an air flow path; and a condensate heat exchange assembly, the condensate heat exchange assembly is located in the installation space, the condensate heat exchange assembly is provided with a heating water inlet, a heating water outlet, a bathroom water inlet and a bathroom water outlet, the condensate heat exchange assembly includes a first heat exchange tube group and a second heat exchange tube group both located in the air flow path, the first heat exchange tube group communicates with the heating water inlet and the heating water outlet and forms a heating heat exchange circulation loop, and the second heat exchange tube group communicates with the bathroom water inlet and the bathroom water outlet and forms a bathroom heat exchange circulation loop.

[0024] Since the condensation heat exchange component is provided with a heating water inlet, a heating water outlet, a bathroom water inlet and a bathroom water outlet, and the condensation heat exchange component includes a first heat exchange tube group and a second heat exchange tube group both located in the air flow path, thus, the high-temperature flue gas flowing in from the air inlet can first contact the outer wall of the first heat exchange tube group, transfer heat to the heating water. After passing through the first heat exchange tube group, the high-temperature flue gas can continue to contact the outer wall of the second heat exchange tube group and further transfer heat to the bathroom water. That is, by setting two independent heat exchange circulation loops, both the heating efficiency of the heating water is improved and the supply efficiency of the bathroom hot water is increased, thereby realizing double heat exchange for heating and bathroom use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings herein are incorporated into and constitute a part of this specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application.

[0026] To more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0027] One or more embodiments are exemplarily illustrated by the pictures in the corresponding accompanying drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the figures do not constitute a proportional limitation.

[0028] Figure 1 Assembly schematic diagram of a condensation heat exchanger provided for an embodiment of the present application;

[0029] Figure 2 Another angle assembly schematic diagram of a condensation heat exchanger provided for an embodiment of the present application;

[0030] Figure 3 Shell structure schematic diagram of a condensation heat exchanger provided for an embodiment of the present application;

[0031] Figure 4 Condensation heat exchange component structure schematic diagram of a condensation heat exchanger provided for an embodiment of the present application;

[0032] Figure 5 Water flow schematic diagram of the condensation heat exchanger in the bathroom state provided for an embodiment of the present application;

[0033] Figure 6 Water flow schematic diagram of the condensation heat exchanger in the heating state provided for an embodiment of the present application;

[0034] Figure 7Schematic diagram of the flue gas flow direction of the condensation heat exchanger provided by the embodiment of the present application.

[0035] Description of the reference numerals:

[0036] Shell 1, condensation heat exchange component 2, flue gas sealing ring 3, probe mounting nut 4, condensate detection screw 5, sealing rubber strip 6, sealing screw 7, flue gas baffle 8, installation space 1-0, air inlet 1-1, air outlet 1-2, flue gas temperature detection port 1-3, installation bracket 1-4, condensate detection port 1-5, condensate drain port 1-6, bathroom rear water box 2-1, bathroom front water box 2-2, bathroom water inlet 2-3, bathroom water outlet 2-4, rear water box cover 2-5, front water box cover 2-6, heating rear water box 2-7, heating front water box 2-8, heating water inlet 2-9, heating water outlet 2-10, first heat exchange tube group 2-11, second heat exchange tube group 2-12. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts shall fall within the protection scope of the present application.

[0038] The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the present application. In addition, the present application may repeat reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0039] For ease of description, spatial relative relationship terms may be used in the text to describe the relative position relationship or movement of one element or feature shown in the figure with respect to another element or feature. These relative relationship terms are, for example, "inside", "outside", "inner side", "outer side", "below", "beneath", "above", "over", "front", "rear", etc. Such spatial relative relationship terms are intended to include different orientations of the device during use or operation other than the orientations depicted in the figure. For example, if the device in the figure undergoes a position flip, attitude change, or motion state change, then these directional indications will change accordingly. For example, an element described as "below" or "beneath" other elements or features will then be oriented as "above" or "over" other elements or features. Therefore, the example term "below" can include both the upper and lower orientations. The device can be oriented otherwise (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0040] The condensing heat exchanger in a wall-mounted boiler is one of the core components of a modern high-efficiency energy-saving heating system.

[0041] Among them, the combustion chamber in the wall-mounted boiler generates high-temperature flue gas during the combustion process. After the generated high-temperature flue gas enters the condensing heat exchanger, the condensing heat exchanger utilizes the latent heat released by the condensation of water vapor in the high-temperature flue gas to improve the thermal efficiency of the system.

[0042] However, the traditional condensing heat exchanger can only exchange heat for the heating water and cannot exchange heat for the sanitary hot water.

[0043] To solve the technical problem in the prior art that only the heating water can be exchanged for heat and the sanitary hot water cannot be exchanged for heat, the present application provides a condensing heat exchanger and a wall-mounted boiler device, which can simultaneously have the functions of heating heat exchange and sanitary hot water heat exchange, and the heating heat exchange and the sanitary hot water heat exchange are independent of each other.

[0044] Refer to Figures 1 to 7 , the condensing heat exchanger provided by the present application includes a housing 1 and a condensing heat exchange component 2.

[0045] Among them, the housing 1 is provided with an installation space 1-0, an air inlet 1-1, and an air outlet 1-2, and the air inlet 1-1, the installation space 1-0, and the air outlet 1-2 are sequentially connected to form an air flow path.

[0046] The condensation heat exchange component 2 is located in the installation space 1-0. The condensation heat exchange component 2 is provided with a heating water inlet 2-9, a heating water outlet 2-10, a bathroom water inlet 2-3 and a bathroom water outlet 2-4. The condensation heat exchange component 2 includes a first heat exchange tube group 2-11 and a second heat exchange tube group 2-12 both located in the air flow path. The first heat exchange tube group 2-11 is communicated with the heating water inlet 2-9 and the heating water outlet 2-10 to form a heating heat exchange circulation loop, and the second heat exchange tube group 2-12 is communicated with the bathroom water inlet 2-3 and the bathroom water outlet 2-4 to form a bathroom heat exchange circulation loop.

[0047] In this embodiment, since the condensation heat exchange component 2 is provided with a heating water inlet 2-9, a heating water outlet 2-10, a bathroom water inlet 2-3 and a bathroom water outlet 2-4, and the condensation heat exchange component 2 includes a first heat exchange tube group 2-11 and a second heat exchange tube group 2-12 both located in the air flow path, thus, the high-temperature flue gas flowing in from the air inlet 1-1 can first contact the outer wall of the first heat exchange tube group 2-11, transfer heat to the heating water. After passing through the first heat exchange tube group 2-11, the high-temperature flue gas can continue to contact the outer wall of the second heat exchange tube group 2-12, and further transfer heat to the bathroom water. That is, by setting two sets of independent heat exchange circulation loops, both the heating efficiency of the heating water is improved and the supply efficiency of the bathroom hot water is increased, thereby realizing double heat exchange for heating and bathroom use.

[0048] In some embodiments, the first heat exchange tube group 2-11 is close to the air inlet 1-1, and the second heat exchange tube group 2-12 is close to the air outlet 1-2.

[0049] In this way, by arranging the first heat exchange tube group 2-11 close to the air inlet 1-1 and the second heat exchange tube group 2-12 close to the air outlet 1-2, the high-temperature flue gas can first pass through the first heat exchange tube group 2-11 for heat exchange, and then pass through the second heat exchange tube group 2-12 for heat exchange, so that the heat exchange efficiency of the heating system can be preferentially ensured, and at the same time, the remaining heat can be fully utilized to heat the bathroom water.

[0050] In some embodiments, the first heat exchange tube group 2-11 includes a plurality of first heat exchange tubes, and the plurality of first heat exchange tubes are all communicated with the heating water inlet 2-9 and the heating water outlet 2-10 to form a heating heat exchange circulation loop;

[0051] The second heat exchange tube group 2-12 includes a plurality of second heat exchange tubes, and the plurality of second heat exchange tubes are all communicated with the bathroom water inlet 2-3 and the bathroom water outlet 2-4 to form a bathroom heat exchange circulation loop.

[0052] In some embodiments, two adjacent first heat exchange tubes are arranged at intervals, and a plurality of the first heat exchange tubes are arranged in an array; and / or two adjacent second heat exchange tubes are arranged at intervals, and a plurality of the second heat exchange tubes are arranged in an array.

[0053] For example, two adjacent first heat exchange tubes are arranged at intervals, and a plurality of the first heat exchange tubes are arranged in an array.

[0054] For another example, two adjacent second heat exchange tubes are arranged at intervals, and a plurality of the second heat exchange tubes are arranged in an array.

[0055] Or, two adjacent first heat exchange tubes are arranged at intervals, a plurality of the first heat exchange tubes are arranged in an array, and two adjacent second heat exchange tubes are arranged at intervals, and a plurality of the second heat exchange tubes are arranged in an array.

[0056] In some embodiments, the first heat exchange tube and the second heat exchange tube may be stainless steel tubes arranged in a circular shape.

[0057] By using circular stainless steel tubes, a relatively large heat exchange area can be obtained. Moreover, since the first heat exchange tubes and the second heat exchange tubes are arranged in an array, the flue gas flow path can be made uniform, thereby improving the heat exchange efficiency.

[0058] In some embodiments, the diameter of the first heat exchange tube is larger than the diameter of the second heat exchange tube.

[0059] For example, the first heat exchange tube may be a φ8 stainless steel round tube, and the second heat exchange tube may be a φ6 stainless steel round tube.

[0060] Since the diameter of the first heat exchange tube is relatively large, a larger surface area can be provided for contact with high-temperature flue gas, so that heat can be absorbed more effectively, which ensures that the heating water can obtain sufficient heat in the initial stage and improves the overall thermal efficiency of the heating system.

[0061] In addition, since the diameter of the first heat exchange tube is relatively large, the resistance encountered by the water flow is relatively small, enabling the heating water to flow smoothly in the first heat exchange tube group 2-11, reducing energy loss, and further improving the heat exchange efficiency.

[0062] In some embodiments, the number of the first heat exchange tubes is greater than the number of the second heat exchange tubes.

[0063] For example, the number of the first heat exchange tubes is 70, and the number of the second heat exchange tubes is 16.

[0064] In this way, the number of the first heat exchange tubes is more than that of the second heat exchange tubes, which can preferentially ensure the efficient heat exchange of the heating system and at the same time make full use of the remaining heat to heat the sanitary water.

[0065] In some embodiments, the extending directions of each of the first heat exchange tubes and each of the second heat exchange tubes are the same. In this way, the compactness of the overall structure of the condensation heat exchange assembly 2 can be improved, the overall volume of the condensation heat exchanger can be reduced, making it easier to install in a wall-mounted boiler, and the installation space 1-0 of the condensation heat exchanger is reduced.

[0066] In some embodiments, the condensation heat exchange assembly 2 further includes a water box assembly, and the water box assembly includes a front water box cover 2-6, a rear water box cover 2-5, a sanitary front water box 2-2, a sanitary rear water box 2-1, a heating rear water box 2-7, and a heating front water box 2-8. Among them, the sanitary rear water box 2-1 and the heating rear water box 2-7 are welded to the rear water box cover 2-5, the sanitary front water box 2-2 and the heating front water box 2-8 are welded to the front water box cover 2-6, the sanitary water inlet 2-3 and the sanitary water outlet 2-4 are welded to the sanitary front water box 2-2, the heating water inlet 2-9 and the heating water outlet 2-10 are welded to the heating front water box 2-8, and a plurality of first heat exchange tubes 2-11 and a plurality of second heat exchange tubes 2-12 are all welded between the front water box cover 2-6 and the rear water box cover 2-5.

[0067] Among them, the first heat exchange tubes and the second heat exchange tubes can be connected between the front water box cover 2-6 and the rear water box cover 2-5 by high-temperature brazing.

[0068] In some embodiments, the heating water inlet 2-9, the heating water outlet 2-10, the sanitary water inlet 2-3, and the sanitary water outlet 2-4 are all located on the same side of the housing 1.

[0069] In this way, by arranging the heating water inlet 2-9, the heating water outlet 2-10, the sanitary water inlet 2-3, and the sanitary water outlet 2-4 on the same side of the housing 1, it is convenient to connect with external pipelines, making the overall structure of the condensation heat exchanger relatively compact, thereby reducing the occupied space of the condensation heat exchanger.

[0070] In some embodiments, the heating water inlet 2-9 and the heating water outlet 2-10 can be set as threaded joints for threaded connection to the water flow pipeline of the wall-mounted boiler equipment. In this way, the sealing effect of the heating end can be improved, thereby improving the heat exchange efficiency of the heating end.

[0071] In some embodiments, the sanitary water inlet 2-3 and the sanitary water outlet 2-4 can be set as snap joints for snap connection to the water flow pipeline of the wall-mounted boiler equipment. In this way, the occupied space of the sanitary end can be reduced.

[0072] In some embodiments, the wall-mounted boiler equipment is provided with a circulation pump that can drive the water flow in the sanitary end and the heating end of the condensation heat exchanger.

[0073] For example, when a user uses the bathroom water, the circulation pump can drive tap water to flow into the bathroom water inlet 2-3 of the front bathroom water box 2-2, and after flowing through the second heat exchange tube for heat exchange, it flows into the rear bathroom water box 2-1. Then the circulation pump drives the heat-exchanged tap water to flow out from the rear bathroom water box 2-1 through the second heat exchange tube along the bathroom water outlet 2-4.

[0074] In some embodiments, the housing 1 is further provided with a condensate drain port 1-6, which communicates with the installation space 1-0 and is located below the condensate heat exchange assembly 2.

[0075] Among them, when the condensate heat exchange assembly 2 is in use, the condensate drain port 1-6 is located below the condensate heat exchange assembly 2. In this way, the condensate formed after the high-temperature flue gas is condensed and heat-exchanged can directly drain along the condensate drain port 1-6, preventing the condensate from accumulating inside the housing 1.

[0076] In some embodiments, the housing 1 is further provided with at least one condensate detection port 1-5, which is close to the air inlet 1-1, communicates with the installation space 1-0, and is equipped with a detection screw for detecting the drainage condition of the condensate.

[0077] Refer to Figure 2 and Figure 7 , specifically, the high-temperature flue gas enters from the lower air inlet 1-1, flows through the first heat exchange tube group 2-11 of the condensate heat exchange assembly 2, and exchanges heat with the relatively high heating water temperature in the first heat exchange tube group 2-11. The flue gas with a lower temperature after one round of heat exchange continues to rise and exchanges heat with the relatively low heating water inlet temperature. Finally, the flue gas with a lower temperature after heating and heat exchange exchanges heat with the relatively low bathroom water and then is discharged from the air outlet 1-2. In this way, double heat exchange for heating and bathroom use can be achieved.

[0078] Among them, the condensate generated during the heat exchange process is discharged through the condensate drain port 1-6. When the drainage is blocked, it can be detected through the condensate detection port 1-5, and the operation of the condensate heat exchanger can be stopped in time.

[0079] In some embodiments, the housing 1 is further provided with a flue gas temperature detection port 1-3, which is close to the air outlet 1-2 and communicates with the air outlet 1-2. A sensor is installed at the flue gas temperature detection port 1-3 for real-time monitoring of the flue gas temperature at the air outlet 1-2 to prevent abnormal operation of the whole machine.

[0080] In some embodiments, the housing 1 is further provided with a flue gas sealing ring 3, a condensate detection screw 5, a sealing rubber strip 6 and a flue gas baffle 8.

[0081] After installing the condensation heat exchange component 2 in the installation space 1-0 of the housing 1, weld the flue gas baffle 8 in the middle of the condensation heat exchange component 2, fix the sealing rubber strip 6 on the upper part of the housing 1, and then fix the condensation heat exchange component 2 to the housing 1 through the sealing screw 7. Finally, respectively clamp the flue gas sealing rings 3 on the air inlet 1-1 and the air outlet 1-2 of the housing 1, and tighten the condensate detection screw 5 on the housing 1.

[0082] In a second aspect, the present application provides a wall-mounted boiler device, which includes the condensation heat exchanger mentioned in any one of the above embodiments; as well as a heater and a main heat exchanger.

[0083] Among them, the heater is used to generate high-temperature flames and transfer heat to the medium in the heating heat exchange pipeline through the combustion chamber. The main heat exchanger is connected to the first heat exchange tube group 2-11 and the second heat exchange tube group 2-12 for further heat exchange.

[0084] Among them, the housing 1 of the condensation heat exchanger is provided with a mounting bracket 1-4, and the condensation heat exchanger can be mounted on the wall-mounted boiler device by the mounting bracket 1-4, so as to ensure the stability of the installation of the condensation heat exchanger.

[0085] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0086] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0087] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more, unless otherwise specifically defined.

[0088] In this application, unless otherwise clearly specified or limited, the terms "installed", "connected", "connected to", "fixed", etc. shall be understood in a broad sense. For example, it can be a connection, a detachable connection, or an integral body; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0089] In this application, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0090] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic descriptions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine the different embodiments or examples described in this specification.

[0091] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

[0092] As described above, the above is the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed in this application can easily think of various equivalent modifications or substitutions, and these modifications or substitutions should all be covered by the protection scope of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

1. A condensing heat exchanger, applied to a wall-mounted boiler device, characterized in that: The condensing heat exchanger comprises: A housing, wherein the housing is provided with an installation space, an air inlet and an air outlet, and the air inlet, the installation space and the air outlet are sequentially connected to form an air circulation path; and A condensing heat exchange component, wherein the condensing heat exchange component is located in the installation space, and is provided with a heating water inlet, a heating water outlet, a bathroom water inlet and a bathroom water outlet. The condensing heat exchange component comprises a first heat exchange tube group and a second heat exchange tube group, both of which are located in the air circulation path. The first heat exchange tube group is connected with the heating water inlet and the heating water outlet to form a heating heat exchange circulation loop, and the second heat exchange tube group is connected with the bathroom water inlet and the bathroom water outlet to form a bathroom heat exchange circulation loop.

2. The condensing heat exchanger according to claim 1, characterized in that: The first heat exchange tube group is close to the air inlet, and the second heat exchange tube group is close to the air outlet.

3. The condensing heat exchanger according to claim 1, characterized in that: The first heat exchange tube group includes a plurality of first heat exchange tubes, and the plurality of first heat exchange tubes are all connected to the heating water inlet and the heating water outlet to form a heating heat exchange circulation loop; The second heat exchange tube group includes a plurality of second heat exchange tubes, and the plurality of second heat exchange tubes are all connected to the bathroom water inlet and the bathroom water outlet to form a bathroom heat exchange circulation loop.

4. The condensing heat exchanger according to claim 3, characterized in that: The diameter of the first heat exchange tube is greater than the diameter of the second heat exchange tube.

5. The condensing heat exchanger according to claim 3, characterized in that: The number of the first heat exchange tubes is greater than the number of the second heat exchange tubes.

6. The condensing heat exchanger according to claim 3, characterized in that: An extending direction of each of the first heat exchange tubes is the same as an extending direction of each of the second heat exchange tubes.

7. The condensing heat exchanger according to claim 3, characterized in that: Two adjacent first heat exchange tubes are arranged at intervals, and a plurality of the first heat exchange tubes are arranged in an array; and / or Two adjacent second heat exchange tubes are arranged at intervals, and a plurality of second heat exchange tubes are arranged in an array.

8. The condensing heat exchanger according to claim 1, characterized in that: The heating water inlet, heating water outlet, bathroom water inlet and bathroom water outlet are all located on the same side of the shell.

9. The condensing heat exchanger according to claim 1, characterized in that: The shell is also provided with a condensation drain port, which is connected to the installation space and is located below the condensation heat exchange component.

10. A wall-mounted boiler device, characterized in that: The wall-mounted boiler equipment comprises: The condensing heat exchanger according to any one of claims 1 to 9; and A heater and a main heat exchanger, wherein the heater is used to heat the main heat exchanger, and the main heat exchanger is connected to the first heat exchange tube group and the second heat exchange tube group.

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