Integrated wall-hanging stove

Abstract

The integrated wall-hanging stove comprises a bottom shell and a face cover fixed to the bottom shell in a covering mode, the bottom shell comprises a three-folded plate, an upper plate and a lower plate, the three-folded plate comprises a back plate, a left plate and a right plate which are integrally formed, the left plate and the right plate are located on the two sides of the back plate respectively, first folded edges are arranged on the outer edges, away from the back plate, of the left plate and the right plate respectively, and second folded edges are arranged on the outer edges of the left plate and the right plate respectively. Second folded edges are arranged on the outer edges, close to the first end of the first folded edge, of the left plate and the right plate respectively, third folded edges are arranged on the outer edges, close to the second end of the first folded edge, of the left plate and the right plate, notches are formed in the two ends of the first folded edge respectively, and the notch in the first end of the first folded edge and the second folded edges form an upper clamping structure. A notch in the second end of the first folded edge and the third folded edge form a lower clamping structure, the upper plate is installed at the first end of the three-folded plate in a clamped mode through the upper clamping structure, the lower plate is installed at the first end of the three-folded plate in a clamped mode through the lower clamping structure, and the face cover is fixed to the first folded edge.

Description

Technical Field

[0001] The utility model relates to the field of gas heating and hot water boilers, and particularly relates to an integrated wall-mounted boiler. Background Art

[0002] The full name of a wall-mounted boiler is a gas wall-mounted heating boiler. It and a gas instantaneous water heater are both fast heating devices without a hot water storage device, but there are essential differences in structure. The gas wall-mounted boiler has a powerful central heating function for families, can meet the heating needs of multiple rooms, and each room can be set at a comfortable temperature according to requirements. It can also decide to turn off the heating in a certain room separately as needed. Moreover, it can also take into account the hot water bathing function and can provide a large flow of constant temperature sanitary hot water for use in places such as family bathing and kitchens.

[0003] However, the outer shells of existing wall-mounted boilers are all assembled by fixing multiple flat plates with fasteners such as screws, resulting in a more cumbersome process for producing the outer shells of wall-mounted boilers, which in turn affects production efficiency and makes the labor cost higher. Moreover, the existing heating inlet pipe and heating outlet pipe are separately installed and fixed to the main heat exchanger with sealing rings and buckles. This detachable fixing method requires a certain space for operating combination tools to be reserved inside the shell of the wall-mounted boiler, resulting in a wider shell volume of the wall-mounted boiler. At the same time, it also increases the hidden danger of water leakage points and the problem of high part costs. In addition, the existing expansion tank is installed at the bottom of the shell, making the outer shell of the wall-mounted boiler higher and resulting in a larger volume of the existing wall-mounted boiler. Summary of the Utility Model

[0004] Based on this, it is necessary to provide an integrated wall-mounted boiler with a compact structure and a small volume.

[0005] To solve the above technical problems, the present utility model provides an integrated wall-mounted boiler, which includes a square housing. The housing includes a bottom case and a face cover fixedly attached to the bottom case. The bottom case includes a three-fold plate, an upper plate, and a lower plate. The three-fold plate includes a back plate, a left plate, and a right plate integrally formed. The left plate and the right plate are respectively located on both sides of the back plate. First flanges are respectively provided at the outer edges of the left plate and the right plate away from the back plate. Second flanges are respectively provided at the outer edges of the first ends of the left plate and the right plate close to the first flanges. Third flanges are provided at the outer edges of the second ends of the left plate and the right plate close to the first flanges. Notches are respectively provided at both ends of the first flanges. The notch at the first end of the first flange and the second flange form an upper clamping structure. The notch at the second end of the first flange and the third flange form a lower clamping structure. The upper plate is clamped and installed at the first end of the first flange through the upper clamping structure. The lower plate is clamped and installed at the second end of the first flange through the lower clamping structure. The face cover is fixed on the first flange. The bottom case and the face cover enclose a closed chamber, and an air path system and a water path system are installed in the chamber.

[0006] Preferably, a fourth flange is provided at the outer edge of the first end of the back plate, and the fourth flange is flush with the second flange. A fifth flange is provided at the outer edge of the second end of the back plate, and the fifth flange is flush with the third flange. The left plate and the right plate are opposite to each other, and the face cover is opposite to the back plate.

[0007] Preferably, the water path system includes a water inlet valve body, a water outlet valve body, a main heat exchanger, a plate heat exchanger, a water pump, and an expansion tank. The main heat exchanger is located above the plate heat exchanger. The plate heat exchanger and the water pump are respectively fixed on the lower plate. The expansion tank is fixed on the back plate. The water inlet valve body and the water outlet valve body are both fixed on the plate heat exchanger. The main heat exchanger and the plate heat exchanger are respectively communicated with the water inlet valve body and the water outlet valve body. The water pump and the expansion tank are communicated through a pipeline.

[0008] Preferably, one end of the main heat exchanger is communicated with the water pump through a heating supply water pipe, and the other end is communicated with the water outlet valve body through a heating return water pipe. The heating supply water pipe and the heating return water pipe are both welded and fixed to the main heat exchanger. The heating return water pipe of the main heat exchanger and the water outlet valve body are hermetically fixed through inserts. The water pump is fixed on the lower plate, and the heating supply water pipe of the main heat exchanger and the water pump are fixed through nuts.

[0009] Preferably, the gas circuit system includes a combustion chamber, a burner, a gas valve, and a smoke exhaust assembly. The combustion chamber is fixed on the back plate, the main heat exchanger is fixed on the combustion chamber, the upper end of the combustion chamber and the lower end of the main heat exchanger are fixedly connected by screws in a sealed manner. The gas valve is fixed on the lower plate, and the gas valve is communicated with the burner through an air inlet pipe. The smoke exhaust assembly is connected to the upper end of the main heat exchanger.

[0010] Preferably, the back surface of the expansion tank is connected to the back plate through fasteners, the side end of the expansion tank is fixed to the combustion chamber through a side bracket, and the expansion tank is a square expansion tank.

[0011] Preferably, a heat insulation layer is provided inside the combustion chamber, and the heat insulation layer is an insulating board or insulating cotton.

[0012] Preferably, the smoke exhaust assembly includes a smoke collecting hood, a fan, and a smoke outlet assembly. The smoke collecting hood is connected to the upper end of the main heat exchanger body, the upper part structure of the smoke collecting hood is fixedly connected to the air inlet end of the fan by screws, the air outlet end of the fan is hermetically connected to the smoke outlet assembly, a sealing ring is provided on the smoke outlet assembly, and the smoke outlet assembly is integrally fixed to the inner side surface of the upper plate.

[0013] The beneficial effects of the present utility model: In this application, the back plate, the left plate, and the right plate are bent and processed from a one-piece three-fold plate. The upper plate and the lower plate are respectively fixed through an upper clamping structure and a lower clamping structure, so that the production and assembly efficiency of the housing is high, and the overall production efficiency of the wall-mounted boiler is improved. The one-piece three-fold plate in this application has high production efficiency by reducing the production process and saves costs. Description of the Drawings

[0014] Specifically illustrated by the preferred embodiments of the present utility model shown in the drawings, the above and other objects, features, and advantages of the present utility model will become clearer. The same reference numerals indicate the same parts in all the drawings, and the drawings are not deliberately drawn to scale in actual size, with the emphasis on showing the gist of the present utility model.

[0015] Figure 1 It is a schematic diagram of the overall structure of the bottom shell of the preferred embodiment of the present utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the three-fold plate of the preferred embodiment of the present utility model;

[0017] Figure 3 It is Figure 2 The partial enlarged view at A in

[0018] Figure 4 It is a structural diagram of the gas circuit system and the water circuit system of the wall-mounted boiler of the preferred embodiment of the present utility model;

[0019] Figure 5 A perspective view of the expansion tank according to a preferred embodiment of the present utility model;

[0020] Figure 6 An internal structure schematic diagram of the wall-hung boiler according to a preferred embodiment of the present utility model;

[0021] Figure 7 is Figure 6 A partial enlarged view at position B in

[0022] In the figure: back plate 1; left plate 2; right plate 3; upper plate 4; lower plate 5; first folding edge 61; second folding edge 62; third folding edge 63; fourth folding edge 64; fifth folding edge 65; notch 66; clamping structure; water inlet valve body 7; water outlet valve body 8; main heat exchanger 9; plate heat exchanger 10; water pump 11; expansion tank 12; heating inlet pipe 91; heating outlet pipe 92; combustion chamber 13; burner 14; gas valve 15; smoke exhaust assembly 16; side bracket 17; intake pipe 100; support plate 18. Detailed implementation manners

[0023] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings.

[0024] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element and integrated with it, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used in this article are only for the purpose of illustration.

[0025] Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as commonly understood by those skilled in the art to which this technology belongs. The terms used in the description of the present specification in this article are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0026] Refer to Figures 1-7, the present utility model provides an integrated wall-mounted boiler, which includes a square housing. The housing includes a bottom shell and a face cover (not shown in the figure) fixedly covered on the bottom shell. The bottom shell includes a three-fold plate, an upper plate 4 and a lower plate 5. The three-fold plate includes a back plate 1, a left plate 2 and a right plate 3 which are integrally formed. The left plate 2 and the right plate 3 are respectively located on both sides of the back plate 1. First flanges 61 are respectively arranged on the outer edges of the left plate 2 and the right plate 3 away from the back plate 1. Second flanges 62 are respectively arranged on the outer edges of the left plate 2 and the right plate 3 near the first ends of the first flanges 61. Third flanges 63 are arranged on the outer edges of the left plate 2 and the right plate 3 near the second ends of the first flanges 61. Notches 66 are respectively arranged at both ends of the first flange 61. The notch at the first end of the first flange 61 and the second flange 62 form an upper clamping structure. The notch 66 at the second end of the first flange 61 and the third flange 63 form a lower clamping structure. The upper plate 4 is clamped and installed at the first end of the first flange 61 through the upper clamping structure. The lower plate 5 is clamped and installed at the second end of the first flange 61 through the lower clamping structure. Both ends of the face cover are respectively mounted and fixed on the first flanges 61 on both sides. The bottom shell and the face cover enclose a closed chamber, and an air path system and a water path system are installed in the chamber. The back plate 1, the left plate 2 and the right plate 3 are made of an integrally formed three-fold plate. The upper plate 4 and the lower plate 5 are respectively fixed through the upper clamping structure and the lower clamping structure, so that the production and assembly efficiency of the housing is high, the overall production efficiency of the wall-mounted boiler is improved, and working hours and costs are saved.

[0027] Reference Figure 2 , in a preferred embodiment, a fourth flange 64 is arranged on the outer edge of the first end of the back plate 1, and the fourth flange 64 is flush with the second flange 62. A fifth flange 65 is arranged on the outer edge of the second end of the back plate 1, and the fifth flange 65 is flush with the third flange 63. The left plate 2 and the right plate 3 face each other, and the face cover faces the back plate 1. Optionally, both ends of the face cover are respectively fixed on the first flange 61 through buckles or fasteners. Buckle grooves are arranged on the first flange 61, and buckles are arranged on the inner side surface of the face cover, and installation is carried out by the way of buckle fastening.

[0028] Reference Figure 4 and Figure 6, in a preferred embodiment, the waterway system includes an inlet valve body 7, an outlet valve body 8, a main heat exchanger 9, a plate heat exchanger 10, a water pump 11 and an expansion tank 12. The main heat exchanger 9 is located above the plate heat exchanger 10. The plate heat exchanger 10 and the water pump 11 are respectively fixed on the lower plate 5. The expansion tank 12 is fixed on the back plate 1. The inlet valve body 7 and the outlet valve body 8 are both fixed on the plate heat exchanger 10. The main heat exchanger 9 and the plate heat exchanger 10 are respectively communicated with the inlet valve body 7 and the outlet valve body 8. The water pump 11 and the expansion tank 12 are communicated through a pipeline. Such installation makes full use of the internal space of the wall-mounted boiler, so that the required installation space is small, and the overall volume of the wall-mounted boiler is small.

[0029] Reference Figure 4 and Figure 6 , in a preferred embodiment, one end of the main heat exchanger 9 is communicated with the water pump 11 through a heating supply water pipe 91, and the other end is communicated with the outlet valve body 8 through a heating return water pipe 92. The heating supply water pipe 91 and the heating return water pipe 92 are both fixed to the main heat exchanger 9 by welding. The heating return water pipe 92 of the main heat exchanger 9 and the outlet valve body 8 are fixed by inserting a piece for sealing. The water pump 11 is fixed on the lower plate 5. The heating supply water pipe 91 of the main heat exchanger 9 and the water pump 11 are fixed by a nut. Welding the heating supply water pipe 91 and the heating return water pipe 92 to the main heat exchanger 4 reduces the hidden danger of water leakage and has low cost. At the same time, there is no need to reserve space for installation and operation on the left and right sides of the main heat exchanger 4, so that the overall width of the shell of the wall-mounted boiler can be reduced. The heating supply water pipe 91 and the heating return water pipe 92 are both welded and fixed to the main heat exchanger 9, and there is no need to reserve space for workers to assemble, so that the width of the shell is reduced; the expansion tank 12 is installed on the back plate 1 and fixed to the combustion chamber 13 through a side bracket 17, which can not only solve the problem that the shell is too long caused by directly installing the expansion tank 12 on the lower plate 5, but also ensure the connection stability of the expansion tank 12; by using different connection methods, the internal space of the wall-mounted boiler is fully utilized, so that the wall-mounted boiler can achieve the effect of reducing the overall volume while keeping the original functions unchanged.

[0030] Reference Figures 4-6, in a preferred embodiment, the gas circuit system includes a combustion chamber 13, a burner 14, a gas valve 15, and an exhaust gas assembly 16. The combustion chamber 13 is fixed on the back plate 1, and the main heat exchanger 9 is fixed on the combustion chamber 13. The upper end of the combustion chamber 13 and the lower end of the main heat exchanger 9 are fixedly connected by screws in a sealed manner. The gas valve 15 is fixed on the lower plate 5, and the gas valve 15 is communicated with the burner 14 through an intake pipe 100. The exhaust gas assembly 16 is connected to the upper end of the main heat exchanger 9. Optionally, a support plate 18 is installed at the upper end and the lower end of the back plate 1 respectively. The support plate 18 is fixed on the back plate 1 by screws. The support plate 18 may be provided with a hollow hole, and the hollow hole is used for hanging and fixing the wall-mounted boiler at positions such as the wall of a room.

[0031] Reference Figure 5 and Figure 6 , in a preferred embodiment, the back surface of the expansion tank 12 is connected to the back plate 1 through a fastener, and the side end of the expansion tank 12 is fixed to the combustion chamber 13 through a side bracket 17. The expansion tank 12 is a square expansion tank. The expansion tank 12 is fixed on the back plate 1, which changes the existing way of installing the expansion tank 12 on the lower plate through a bracket, eliminates the use of the bracket, and enables the height of the wall-mounted boiler to be reduced.

[0032] In a preferred embodiment, a heat insulation layer is provided inside the combustion chamber 13, and the heat insulation layer is an insulating board or insulating cotton.

[0033] Reference Figure 4 and Figure 6 , in a preferred embodiment, the exhaust gas assembly 16 includes a smoke collecting hood, a fan, and a smoke outlet assembly. The smoke collecting hood is connected to the upper end of the main heat exchanger body, the upper part structure of the smoke collecting hood is fixedly connected to the air inlet end of the fan by screws, the air outlet end of the fan is hermetically connected to the smoke outlet assembly, a sealing ring is provided on the smoke outlet assembly, and the smoke outlet assembly is integrally fixed on the inner side surface of the upper plate 4.

[0034] In this application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0035] In the description of this specification, the description referring to terms such as "preferred embodiment", "another embodiment", "other embodiments" or "specific examples" means 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 representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0036] Although the embodiments of this application have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting this application. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. An integrated wall-mounted boiler, characterized in that, It includes a square housing, which includes a bottom case and a face cover fixedly attached to the bottom case. The bottom case includes a triple-fold plate, an upper plate, and a lower plate. The triple-fold plate includes a back plate, a left plate, and a right plate integrally formed. The left plate and the right plate are respectively located on both sides of the back plate. First flanges are respectively provided on the outer edges of the left plate and the right plate away from the back plate. Second flanges are respectively provided on the outer edges of the left plate and the right plate near the first ends of the first flanges. Third flanges are provided on the outer edges of the left plate and the right plate near the second ends of the first flanges. Notches are respectively provided at both ends of the first flange. The notch at the first end of the first flange and the second flange form an upper clamping structure. The notch at the second end of the first flange and the third flange form a lower clamping structure. The upper plate is clamped and installed at the first end of the first flange through the upper clamping structure. The lower plate is clamped and installed at the second end of the first flange through the lower clamping structure. The face cover is fixed on the first flange. The bottom case and the face cover enclose a closed chamber, and an air path system and a water path system are installed in the chamber.

2. The wall-mounted boiler according to claim 1, characterized in that, A fourth flange is provided on the outer edge of the first end of the back plate, and the fourth flange is flush with the second flange. A fifth flange is provided on the outer edge of the second end of the back plate, and the fifth flange is flush with the third flange. The left plate and the right plate face each other, and the face cover faces the back plate.

3. The wall-hung boiler according to claim 2, characterized in that, The water path system includes an inlet valve body, an outlet valve body, a main heat exchanger, a plate heat exchanger, a water pump, and an expansion tank. The main heat exchanger is located above the plate heat exchanger. The plate heat exchanger and the water pump are respectively fixed on the lower plate. The expansion tank is fixed on the back plate. The inlet valve body and the outlet valve body are both fixed on the plate heat exchanger. The main heat exchanger and the plate heat exchanger are respectively connected to the inlet valve body and the outlet valve body. The water pump and the expansion tank are connected through a pipeline.

4. The wall-mounted boiler according to claim 3, characterized in that, One end of the main heat exchanger is connected to the water pump through a heating supply inlet pipe and the other end is connected to the outlet valve body through a heating supply outlet pipe. The heating supply inlet pipe and the heating supply outlet pipe are both welded and fixed to the main heat exchanger. The heating supply outlet pipe of the main heat exchanger and the outlet valve body are sealed and fixed through inserts. The water pump is fixed on the lower plate. The heating supply inlet pipe of the main heat exchanger and the water pump are fixed through nuts.

5. The wall-mounted boiler according to claim 3, characterized in that, The air path system includes a combustion chamber, a burner, a gas valve, and an exhaust gas assembly. The combustion chamber is fixed on the back plate. The main heat exchanger is fixed on the combustion chamber. The upper end of the combustion chamber and the lower end of the main heat exchanger are sealed and fixedly connected by screws. The gas valve is fixed on the lower plate. The gas valve is connected to the burner through an inlet pipe. The exhaust gas assembly is connected to the upper end of the main heat exchanger.

6. The wall-mounted boiler according to claim 5, characterized in that The back of the expansion tank is connected to the back plate through fasteners. The side end of the expansion tank is fixed to the combustion chamber through a side bracket. The expansion tank is a square expansion tank.

7. The wall-mounted boiler according to claim 5 or 6, characterized in that, An insulating layer is provided inside the combustion chamber, and the insulating layer is an insulating board or insulating cotton.

8. The wall-mounted boiler according to claim 5, characterized in that, The smoke exhaust assembly includes a smoke collecting hood, a fan, and a smoke outlet assembly. The smoke collecting hood is connected to the upper end of the main heat exchanger body. The upper part of the smoke collecting hood is fixedly connected to the air inlet end of the fan by screws. The air outlet end of the fan is hermetically connected to the smoke outlet assembly. A sealing ring is provided on the smoke outlet assembly, and the entire smoke outlet assembly is fixed to the inner side of the upper plate.

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