Heat insulation structure of water heater

Abstract

The utility model relates to a heat insulation structure of a water heater, a burner is arranged in the water heater, the burner comprises an outer shell, an inner shell and a plurality of fire grate sheets, the inner shell is fixed in the outer shell, a heat insulation area is formed between the outer side wall of the inner shell and the inner side wall of the outer shell, a first air inlet structure is arranged at the bottom of the outer shell, and a second air inlet structure is arranged at the bottom of the outer shell. A second air inlet structure is arranged on the side wall of the inner shell, the bottom of the inner shell is open, the opening corresponds to the first air inlet structure, and the second air inlet structure is communicated with the interior of the inner shell and the heat insulation area. The heat insulation area is arranged on the combustor, and air in the heat insulation area is used as a medium for blocking heat radiation, so that outward transfer of heat of the combustor can be effectively reduced; and through the first air inlet structure and the second air inlet structure, external air can be fed into the inner shell, and heat of the heat insulation area can be taken away in the air conveying process.

Description

Technical Field

[0001] This utility model relates to the field of gas water heaters, and in particular to a heat insulation structure for a water heater. Background Technology

[0002] When a water heater is working, its burner heats the heat exchange tubes by burning gas, thereby heating the liquid transported through the heat exchange tubes. The high temperature generated by the burner often radiates onto the outer casing of the water heater, and users often feel the high temperature of the casing when operating the control panel on the casing. Moreover, the temperature inside the casing is even higher, and if ventilation is poor, it can easily cause the circuit components to overheat and burn out.

[0003] Therefore, it is necessary to make further improvements. Utility Model Content

[0004] The purpose of this invention is to overcome the above-mentioned problems and provide a heat insulation structure for a water heater that can effectively reduce the heat radiated by the burner.

[0005] To achieve the above objectives, this utility model provides a heat insulation structure for a water heater. The water heater contains a burner, which includes an outer shell, an inner shell, and multiple burner plates. The inner shell is fixed inside the outer shell, and a heat insulation zone is formed between the outer side wall of the inner shell and the inner side wall of the outer shell. The bottom of the outer shell is provided with a first air inlet structure, and the side wall of the inner shell is provided with a second air inlet structure. The bottom of the inner shell is open, and the open corresponding to the first air inlet structure. The second air inlet structure connects the interior of the inner shell with the heat insulation zone.

[0006] In one or more embodiments, the upper end of the inner housing is open, and the edge of the opening is bent outward to form an inner lug. The outer housing is provided with an outer lug for supporting the inner lug. The inner lug is connected to the outer lug by screws.

[0007] In one or more embodiments, the outer lug has pre-drilled mounting holes.

[0008] In one or more embodiments, the first air intake structure consists of a plurality of lower air intakes distributed in the area between the fire briquette plates.

[0009] In one or more embodiments, the second air intake structure consists of a plurality of side air intakes distributed in the area between the fire rack plates.

[0010] In one or more embodiments, the inner housing is provided with two opposing inner supports, each with an installation notch, and the fire plate is snapped into the installation notch. The inner supports are fixed to the inner housing by screws.

[0011] Compared with the prior art, the advantages of this utility model are: by setting a heat insulation zone on the burner and using the air in the heat insulation zone as a medium to block heat radiation, the heat transfer of the burner to the outside can be effectively reduced; moreover, through the first air inlet structure and the second air inlet structure, outside air can be sent into the inner shell, and the heat of the heat insulation zone can be carried away during the air transport process. Attached Figure Description

[0012] Figure 1 This is a cross-sectional view of the burner in this application. Detailed Implementation

[0013] To enhance understanding of this utility model, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. These embodiments are only used to explain the present utility model and do not constitute a limitation on the scope of protection of the present utility model.

[0014] Please refer to the appendix. Figure 1 This application provides a heat insulation structure for a water heater. The water heater contains a burner, which includes an outer shell 1, an inner shell 2, and multiple burner plates 3. The inner shell 2 is fixed inside the outer shell 1. A heat insulation zone 4 is formed between the outer side wall of the inner shell 2 and the inner side wall of the outer shell 1. The air in the heat insulation zone can act as a heat insulation medium, slowing down and reducing heat radiation outward. A first air inlet structure 5 is provided at the bottom of the outer shell 1, and a second air inlet structure 6 is provided on the side wall of the inner shell 2. The bottom of the inner shell 2 is open, and the opening corresponds to the first air inlet structure 5. The air intake structure 5 and the second air intake structure 6 connect the interior of the inner shell 2 with the heat insulation zone 4. Outside air enters through the first air intake structure, part of which enters directly from the bottom opening of the inner shell to provide sufficient oxygen for the combustion gas of the burner plates; while part enters the heat insulation zone from both sides of the inner shell, and then enters the interior of the inner shell through the second air intake structure to further provide oxygen for combustion inside the inner shell. In addition, the air entering from the second air intake structure can continuously replace the air in the heat insulation zone, avoiding heat accumulation in the heat insulation zone, thereby further reducing the heat radiated outward from the outer shell.

[0015] The inner shell 2 has an opening at its upper end, and the edge of this opening is bent outward to form an inner lug 7. The outer shell 1 has an outer lug 8, which is used to support the inner lug 7. The inner lug is connected to the outer lug by screws. The inner shell and the outer shell only contact each other through the outer lug, so the amount of heat that can be directly conducted from the inner shell to the outer shell is small, which can effectively reduce the temperature of the outer shell. The outer lug 8 has pre-drilled mounting holes for mounting and fixing the outer shell.

[0016] The first air intake structure 5 consists of multiple lower air intakes distributed in the area between the burner plates 3 and the burner plates. The second air intake structure 6 consists of multiple side air intakes distributed in the area between the burner plates 3 and the burner plates, to ensure that the fresh air input can pass through the burner plates without obstruction, and to directly provide fresh air for the combustion of gas output through the air outlet at the top of the burner plates.

[0017] The inner housing 2 is provided with two opposing inner brackets 9. The inner brackets have installation notches, and the burner plate 3 is snapped into the installation notches. The inner brackets 9 are fixed to the inner housing 2 by screws. By using the inner brackets to fix the burner plate, the heat conduction area between the burner plate and the inner housing can be reduced, and the high temperature of the burner plate can be avoided from having a large high temperature impact on the inner housing.

[0018] The above description is only a preferred embodiment of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. All equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present utility model should be included in the protection scope recorded in the claims.

Claims

1. A heat insulation structure for a water heater, characterized in that: The water heater is equipped with a burner, which includes an outer shell (1), an inner shell (2) and multiple burner plates (3). The inner shell (2) is fixed inside the outer shell (1). A heat insulation zone (4) is formed between the outer side wall of the inner shell (2) and the inner side wall of the outer shell (1). The bottom of the outer shell (1) is provided with a first air inlet structure (5). The side wall of the inner shell (2) is provided with a second air inlet structure (6). The bottom of the inner shell (2) is open, and the open corresponds to the first air inlet structure (5). The second air inlet structure (6) connects the inside of the inner shell (2) with the heat insulation zone (4).

2. The heat insulation structure of a water heater according to claim 1, characterized in that: The upper end of the inner shell (2) is open, and the edge of the opening is bent outward to form an inner lug (7). The outer shell (1) is provided with an outer lug (8), which is used to support the inner lug (7). The inner lug is connected to the outer lug by screws.

3. The heat insulation structure of a water heater according to claim 2, characterized in that: The outer lug (8) has pre-drilled mounting holes.

4. The heat insulation structure of a water heater according to claim 1, characterized in that: The first air intake structure (5) consists of multiple lower air intakes, which are distributed in the area between the fire rack (3) and the fire rack.

5. The heat insulation structure of a water heater according to claim 1, characterized in that: The second air intake structure (6) consists of multiple side air intakes, which are distributed in the area between the fire rack plate (3) and the fire rack plate.

6. The heat insulation structure of a water heater according to claim 1, characterized in that: The inner shell (2) is provided with two opposing inner brackets (9), and the inner brackets have installation notches. The fire plate (3) is snapped into the installation notch. The inner brackets (9) are fixed to the inner shell (2) by screws.

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