Condensation type gas water heater

Abstract

The condensation type gas water heater comprises a bottom shell, a combustion chamber enclosure frame, a combustion chamber cover plate, a fan assembly and a condensation heat exchanger, the combustion chamber enclosure frame, the combustion chamber cover plate, the fan assembly and the condensation heat exchanger are arranged in the bottom shell, the back face of the combustion chamber enclosure frame is detachably connected with the bottom shell, and an opening is formed in the front face of the combustion chamber enclosure frame. The combustion chamber cover plate is detachably connected with the combustion chamber enclosure frame to seal the opening, a heat exchanger and a combustor are arranged in the combustion chamber enclosure frame, and the heat exchanger and the combustor are detachably connected with the combustion chamber cover plate; an air inlet of the condensation heat exchanger is connected with an air outlet of the fan assembly in a sleeved mode, an air inlet of the fan assembly is connected with an opening in the upper end of the combustion chamber enclosure frame in a sleeved mode, and the fan assembly is detachably connected with the combustion chamber cover plate.

Description

Technical Field

[0001] The utility model relates to the technical field of gas water heaters, in particular to a condensing gas water heater. Background Art

[0002] In existing gas water heaters, components such as the blower, heat exchanger, and combustion chamber are fixed in the bottom shell by screwing from the left and right or front and back. Multiple connecting pieces are used between the components. When disassembling and replacing components, relevant connecting pieces (such as the gas distribution pipe, the connecting pipe between the blower and the heat exchanger, etc.) and their fixing screws to the bottom shell need to be removed. Since these screws and the fixing screws of each component to the bottom shell are arranged on the left and right sides or front and back sides of the bottom shell, it is time-consuming and laborious to disassemble. Then, each component needs to be taken out from the inside of the bottom shell and disassembled one by one to replace the corresponding component. This kind of structure is difficult to repair. Summary of the Utility Model

[0003] An object of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide a condensing gas water heater with high integration degree and convenient for maintenance and replacement.

[0004] The condensing gas water heater according to an embodiment of the utility model includes a bottom shell, and a combustion chamber frame, a combustion chamber cover plate, a blower assembly, and a condensing heat exchanger respectively arranged in the bottom shell. The back surface of the combustion chamber frame is detachably connected to the bottom shell. An opening is provided on the front surface of the combustion chamber frame. The combustion chamber cover plate is detachably connected to the combustion chamber frame to close the opening. A heat exchanger and a burner are arranged in the combustion chamber frame. The heat exchanger and the burner are respectively detachably connected to the combustion chamber cover plate. The air inlet of the condensing heat exchanger is sleeved with the air outlet of the blower assembly. The air inlet of the blower assembly is sleeved with the upper end opening of the combustion chamber frame, and the blower assembly is detachably connected to the combustion chamber cover plate.

[0005] According to some embodiments of the utility model, the back surface of the burner is detachably connected to the bottom of the combustion chamber frame.

[0006] According to some embodiments of the utility model, the back surface of the heat exchanger is detachably connected to the bottom of the combustion chamber frame.

[0007] According to some embodiments of the utility model, screw holes corresponding to the combustion chamber frame, the heat exchanger, the burner, and the blower assembly are provided on the combustion chamber cover plate. Screws pass through the screw holes to fix the combustion chamber cover plate to the combustion chamber frame, and to fix the corresponding heat exchanger, burner, and blower assembly to the combustion chamber cover plate.

[0008] According to some embodiments of the present utility model, the fan assembly includes a fan bracket and a fan fixed thereon, and the fan bracket is detachably connected to the bottom shell.

[0009] According to some embodiments of the present utility model, a wind collecting hood is provided at the air inlet end of the fan, the wind collecting hood is sleeved on the upper end opening of the combustion chamber frame, and the wind collecting hood is connected to the combustion chamber cover plate by screws.

[0010] According to some embodiments of the present utility model, it further includes a condenser bracket connected to the condensation heat exchanger, and the condenser bracket is connected to the bottom shell by screws.

[0011] According to some embodiments of the present utility model, the back surface of the combustion chamber frame is connected to the bottom shell by screws.

[0012] According to some embodiments of the present utility model, the heat exchanger has a non-coiled tube structure.

[0013] The condensing gas water heater according to the embodiments of the present utility model has at least the following beneficial effects: the heat exchanger and the burner are both arranged in the combustion chamber frame to form an integrated structure, and the air inlet of the condensation heat exchanger is directly sleeved with the air outlet of the fan assembly, and the air inlet of the fan assembly is sleeved with the upper end opening of the combustion chamber frame, further reducing the number of connecting parts, with a high degree of component integration, which is convenient for disassembly and installation; secondly, the combustion chamber frame, the heat exchanger, the burner and the fan assembly are respectively detachably connected to the combustion chamber cover plate. Only by installing and removing screws from the front in one direction of the combustion chamber cover plate, compared with the general market situation where screws need to be fixed on the front, side and back of the combustion chamber to install the whole component in the bottom shell, it is more convenient for assembly and after-sales maintenance.

[0014] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes the specific embodiments of the present utility model with reference to the drawings;

[0016] Figure 1 is the assembly drawing of the condensing gas water heater;

[0017] Figure 2 is one of the exploded views of the condensing gas water heater;

[0018] Figure 3 is the second exploded view of the condensing gas water heater. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0020] In the description of the present utility model, it should be understood that when it comes to orientation descriptions, such as the upper, lower, front, rear, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present utility model.

[0021] In the description of the present utility model, the meaning of "several" is one or more, the meaning of "multiple" is two or more. Understandings such as "greater than", "less than", "exceeding", etc. do not include the original number, and understandings such as "above", "below", "within", etc. include the original number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0022] Refer to Figures 1 to 3 , a condensing gas water heater of the present utility model includes a bottom shell 10, and a combustion chamber enclosure 11, a combustion chamber cover plate 12, a fan assembly 20, and a condensing heat exchanger 30 respectively arranged in the bottom shell 10. The back of the combustion chamber enclosure 11 is detachably connected to the bottom shell 10. The front of the combustion chamber enclosure 11 is provided with an opening. The back of the combustion chamber enclosure 11 and the bottom shell 10 are connected by screws to close the opening. A heat exchanger 13 and a burner 14 are arranged in the combustion chamber enclosure 11. The heat exchanger 13 and the burner 14 are respectively detachably connected to the combustion chamber cover plate 12; the air inlet of the condensing heat exchanger 30 is sleeved with the air outlet of the fan assembly 20, the air inlet of the fan assembly 20 is sleeved with the upper opening of the combustion chamber enclosure 11, and the fan assembly 20 is detachably connected to the combustion chamber cover plate 12. The heat exchanger 13 and the burner 14 are both arranged in the combustion chamber enclosure 11 to form an integrated structure. Moreover, the air inlet of the condensing heat exchanger 30 is directly sleeved with the air outlet of the fan assembly 20, and the air inlet of the fan assembly 20 is sleeved with the upper opening of the combustion chamber enclosure 11, further reducing the number of connecting parts. The degree of component integration is high, which is convenient for disassembly and installation; secondly, the combustion chamber enclosure 11, the heat exchanger 13, the burner 14, and the fan assembly 20 are respectively detachably connected to the combustion chamber cover plate 12. Only screws need to be installed and removed from the front in one direction of the combustion chamber cover plate 12. Compared with the general market situation where screws need to be fixed on the front, side, and back of the combustion chamber to install the entire component in the bottom shell 10, it is more convenient for assembly and after-sales maintenance.

[0023] In some embodiments, the heat exchanger 13 has a coil-less structure, which is smaller in volume and is convenient to be arranged in the combustion chamber frame 11.

[0024] Preferably, as Figure 2 , the back surface of the burner 14 is detachably connected to the bottom of the combustion chamber frame 11, and the back surface of the heat exchanger 13 is detachably connected to the bottom of the combustion chamber frame 11. Both can adopt screw connections to firmly fix the burner 14 and the heat exchanger 13 in the combustion chamber frame 11. Moreover, the heat exchanger 13 and the burner 14 are respectively connected to the bottom of the combustion chamber frame 11, which is convenient for screwing or disassembling in one direction.

[0025] Preferably, as Figure 2 , screw holes 121 corresponding to the combustion chamber frame 11, the heat exchanger 13, the burner 14 and the fan assembly 20 are provided on the combustion chamber cover plate 12. Screws are passed through the screw holes 121 to fix the combustion chamber cover plate 12 to the combustion chamber frame 11, and to fix the corresponding heat exchanger 13, burner 14 and fan assembly 20 to the combustion chamber cover plate 12. The structure is simple, and it only needs to install and remove screws from the front in one direction of the combustion chamber cover plate 12.

[0026] As Figure 2 and Figure 3 , the fan assembly 20 includes a fan bracket 21 and a fan fixed thereon. The fan bracket 21 is detachably connected to the bottom shell 10 to improve the stability of the fan. A wind collecting cover 22 is provided at the air inlet end of the fan. The wind collecting cover 22 is sleeved on the upper end opening of the combustion chamber frame 11, and the wind collecting cover 22 is connected to the combustion chamber cover plate 12 by screws, which is convenient for disassembly and assembly.

[0027] Furthermore, it further includes a condenser bracket 31 connected to the condensation heat exchanger 30. The condenser bracket 31 is connected to the bottom shell 10 by screws, with a simple structure and convenient for disassembly and assembly.

[0028] It is easy for those skilled in the art to understand that, on the premise of no conflict, the above preferred modes can be freely combined and superimposed.

[0029] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural transformations made under the inventive concept of the present invention by using the content of the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A condensing gas water heater, characterized in that: include: A bottom shell (10) and a combustion chamber enclosure frame (11), a combustion chamber cover plate (12), a fan assembly (20) and a condensing heat exchanger (30) respectively arranged in the bottom shell (10), wherein the back side of the combustion chamber enclosure frame (11) is detachably connected to the bottom shell (10), the front side of the combustion chamber enclosure frame (11) is provided with an opening, the combustion chamber cover plate (12) is detachably connected to the combustion chamber enclosure frame (11) to close the opening, a heat exchanger (13) and a burner (14) are arranged in the combustion chamber enclosure frame (11), and the heat exchanger (13) and the burner (14) are respectively detachably connected to the combustion chamber cover plate (12); The air inlet of the condensing heat exchanger (30) is sleeved with the air outlet of the fan assembly (20), the air inlet of the fan assembly (20) is sleeved with the upper opening of the combustion chamber frame (11), and the fan assembly (20) is detachably connected to the combustion chamber cover plate (12).

2. The condensing gas water heater according to claim 1, characterized in that: The back side of the burner (14) is detachably connected to the bottom of the combustion chamber surrounding frame (11).

3. The condensing gas water heater according to claim 1, characterized in that: The back side of the heat exchanger (13) is detachably connected to the bottom side of the combustion chamber surrounding frame (11).

4. The condensing gas water heater according to claim 1, characterized in that: The combustion chamber cover plate (12) is provided with screw holes (121) corresponding to the combustion chamber frame (11), the heat exchanger (13), the burner (14) and the fan assembly (20), respectively. Screws are passed through the screw holes (121) to fix the combustion chamber cover plate (12) to the combustion chamber frame (11), and to fix the corresponding heat exchanger (13), the burner (14) and the fan assembly (20) to the combustion chamber cover plate (12).

5. The condensing gas water heater according to claim 4, characterized in that: The fan assembly (20) comprises a fan bracket (21) and a fan fixed thereon, and the fan bracket (21) is detachably connected to the bottom shell (10).

6. The condensing gas water heater according to claim 5, characterized in that: The air inlet end of the fan is provided with an air collecting hood (22), the air collecting hood (22) is sleeved with the upper opening of the combustion chamber enclosure frame (11), and the air collecting hood (22) is connected to the combustion chamber cover plate (12) by screws.

7. The condensing gas water heater according to claim 1, characterized in that: It also includes a condenser bracket (31) connected to the condensing heat exchanger (30), and the condenser bracket (31) is connected to the bottom shell (10) by means of screws.

8. The condensing gas water heater according to claim 1, characterized in that: The back side of the combustion chamber surrounding frame (11) is connected to the bottom shell (10) via screws.

9. The condensing gas water heater according to claim 1, characterized in that: The heat exchanger (13) is a coil-free structure.

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