Combustion heat exchange device convenient to assemble

Abstract

The utility model belongs to the technical field of water heaters, and discloses a combustion heat exchange device convenient to assemble, which is mainly used for solving the problems that a combustion heat exchange structure in an existing gas water heater is extremely easy to corrode and low in assembly efficiency. The combustion heat exchange device mainly comprises three functional units, namely the fan, the heat exchanger and the combustion chamber, the heat exchanger is mounted at the upper port of the combustion chamber, so that the heat exchanger can directly exchange heat with high-temperature air in the combustion chamber below the heat exchanger, a traditional coil heat exchanger is omitted, the corrosion phenomenon can be effectively avoided, and the service life of the combustion chamber is prolonged. The risks of water leakage, flue gas deterioration, flame overflow and the like are reduced, and the heat exchange efficiency can be improved; besides, all the functional units are connected and installed through the screws, the connecting and fixing mode of the whole device is simple, the connecting and inserting directions of all the screws are kept consistent, the assembling time can be shortened, and the assembling efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to water heater technical field, more specifically, it relates to a kind of combustion heat exchange device of convenient assembly. BACKGROUND

[0002] Gas water heater, also known as gas water heater, is a kind of gas appliance that uses gas as fuel to heat the cold water flowing through the heat exchanger by combustion heating, to achieve the purpose of preparing hot water. Gas water heater can quickly provide hot water for our daily life, and has become an indispensable kitchen appliance in modern families.

[0003] At present, most of the gas water heaters on the market use oxygen-free copper heat exchangers with welded coil pipes. The coil pipes are wrapped around the outside of the combustion chamber and fixed between the coil pipes and the combustion chamber by welding process. However, the welding joint between the coil pipes and the combustion chamber is prone to condensate accumulation. In the long-term use, the accumulation of condensate will cause the welding point to be gradually corroded, resulting in water leakage of the coil pipes. In severe corrosion cases, it may also cause the flame to overflow from the combustion chamber, causing fire risk and deteriorating the combustion conditions of the gas water heater. In addition, the existing gas water heater does not have a unified connection and installation standard for the assembly of overall functional units. The installation and connection between functional units are complex and difficult, which makes it difficult for installers to work and prone to installation errors, resulting in low assembly efficiency of the overall device. SUMMARY

[0004] The utility model aims to provide a kind of combustion heat exchange device of convenient assembly, to solve the problem of corrosion and low assembly efficiency of combustion heat exchange structure in existing gas water heater.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0006] A kind of combustion heat exchange device of convenient assembly, comprising a fan, a heat exchanger and a combustion chamber, the lower port of the combustion chamber is provided with a burner, characterized in that the heat exchanger is installed at the upper port of the combustion chamber, and the fan is installed above the heat exchanger;The fan and the heat exchanger are fixedly connected with the combustion chamber by screws, and the connection insertion directions of all screws are consistent.

[0007] As a further preferred embodiment of the present application, the combustion chamber comprises a surrounding plate assembly and a front cover plate assembly, the surrounding plate assembly is three-sided, and the surrounding plate assembly and the front cover plate assembly correspondingly form the combustion chamber; a connecting part I is arranged on the upper end of the surrounding plate assembly opposite to the front cover plate assembly and the upper end of the front cover plate assembly, respectively; a plurality of fan mounting holes I for connecting the fan and a plurality of heat exchanger mounting holes I for connecting the heat exchanger are arranged on the connecting part I.

[0008] As a further preferred embodiment of the present application, the heat exchanger comprises two symmetrically arranged fixed plates, heat exchange pipes and heat exchange fins, the heat exchange pipes are arranged in an "S" shape and are fixed by the two fixed plates, and the heat exchange fins are arranged on the heat exchange pipes in the region between the two fixed plates.

[0009] As a further preferred embodiment of the present application, the heat exchanger is horizontally arranged between the connecting part I on the surrounding plate assembly and the connecting part I on the front cover plate assembly, and the two end faces of the fixed plate in the length direction abut against the two connecting parts I, respectively, and the lower end faces of the two fixed plates abut against the upper end faces of the two surrounding plates in the surrounding plate assembly, respectively.

[0010] As a further preferred embodiment of the present application, the two end faces of the fixed plate abutting against the connecting part I are provided with a connecting part II extending outward, the connecting part II is parallel to the connecting part I, and the heat exchanger mounting hole II corresponding to the heat exchanger mounting hole I is arranged on the connecting part II.

[0011] As a further preferred embodiment of the present application, the lower end of the fan is adapted to the upper port of the combustion chamber, a connecting part III is arranged on the lower end of the fan, the connecting part III is arranged on the connecting part I, the connecting part III is parallel to the connecting part I, the fan mounting hole II corresponding to the fan mounting hole I is arranged on the connecting part III, and the lower end of the connecting part III abuts against the upper end face of the two fixed plates.

[0012] As a further preferred embodiment of the present application, a "U" shaped notch is arranged on the connecting part III corresponding to the connecting part I of the front cover plate assembly.

[0013] As a further preferred technical solution, the heat exchanger mounting hole I on the connecting part I of the surrounding plate assembly, the heat exchanger mounting hole II on the connecting part II of the front cover plate assembly against the side of the surrounding plate assembly, the fan mounting hole II on the connecting part III corresponding to the connecting part I of the front cover plate assembly, and the fan mounting hole I on the connecting part I of the front cover plate assembly are all through holes.

[0014] As a further preferred technical solution, the surrounding plate assembly and the front cover plate assembly are multi-layer hollow structures, and cold air inlets are arranged on the outer surfaces of the surrounding plate assembly and the front cover plate assembly, and cold air outlets are arranged on the inner surfaces of the surrounding plate assembly and the front cover plate assembly.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] The combustion heat exchange device mainly comprises three functional units of a fan, a heat exchanger and a combustion chamber, wherein the heat exchanger is installed at the upper end of the combustion chamber, so that it can directly exchange heat with high-temperature air in the combustion chamber below, and the traditional coil heat exchanger is cancelled, which can not only effectively avoid corrosion and reduce the risk of water leakage, poor smoke and flame overflow, but also improve the heat exchange efficiency; in addition, the connection and installation between the functional units of the present application are all completed through screws, the connection and fixing mode of the whole device is simple, and the connection and insertion directions of all screws in the present application are consistent, which is beneficial to reducing the assembly time and improving the assembly efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application, in which:

[0018] Figure 1 is an exploded view of the overall structure of the present application;

[0019] Figure 2 is a schematic view of the overall assembly structure of the present application.

[0020] Wherein, 1-fan, 11-fan mounting hole II, 12-"U" type notch, 2-heat exchanger, 21-fixed plate, 22-heat exchange tube, 23-heat exchange fin, 24-heat exchanger mounting hole II, 3-combustion chamber, 31-enclosure assembly, 32-front cover plate assembly, 33-fan mounting hole I, 34-heat exchanger mounting hole I, 4-burner. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] As Figure 1 shown in a kind of convenient assembly's combustion heat exchange device, including fan 1, heat exchanger 2 and combustion chamber 3, combustion chamber 3 is installed at lower port, and burner 4 is installed at the upper port of combustion chamber 3, heat exchanger 2, fan 1 is installed above heat exchanger 2;Fan 1 and heat exchanger 2 are fixedly connected with combustion chamber 3 by screw, and the insertion direction of all screws is consistent.

[0024] In the embodiment, the combustion chamber 3 includes the enclosure assembly 31 and the front cover plate assembly 32, the enclosure assembly 31 is three face enclosure, the enclosure assembly 31 and the front cover plate assembly 32 are correspondingly enclosed to form the combustion chamber 3, it needs to be clear that the enclosure assembly 31 and the front cover plate assembly 32 are connected by multiple screws and enclosed as a whole;The upper end of the side enclosure of the enclosure assembly 31 and the front cover plate assembly 32 opposite and the upper end of the front cover plate assembly 32 are respectively extended to be provided with connecting portion I, a plurality of fan mounting holes I 33 for connecting fan 1 and a plurality of heat exchanger mounting holes I 34 for connecting heat exchanger 2 are provided on the connecting portion I.

[0025] In the embodiment, the heat exchanger 2 includes two symmetrically arranged fixed plates 21, heat exchange tubes 22 and heat exchange fins 23, the heat exchange tubes 22 are arranged in "S" shape horizontally and are fixed by the two fixed plates 21, and the heat exchange fins 23 are installed on the heat exchange tubes 22 in the region between the two fixed plates 21.

[0026] More specifically, the heat exchanger 2 is horizontally mounted between the connecting part I on the surrounding plate assembly 31 and the connecting part I on the front cover plate assembly 32, and the two end faces of the fixing plate 21 in the length direction thereof abut against the two connecting parts I respectively, and the lower end faces of the two fixing plates 21 abut against the upper end faces of the two opposite surrounding plates in the surrounding plate assembly 31 respectively.

[0027] More specifically, the two end faces of the fixing plate 21 abutting against the connecting parts I are both outwardly extended with connecting parts II, which are parallel to the connecting parts I, and the heat exchanger mounting holes II 24 corresponding to the heat exchanger mounting holes I 34 are arranged on the connecting parts II.

[0028] In the embodiment, the lower end of the fan 1 is adapted to the upper port of the combustion chamber 3, and the connecting part III is arranged on the lower end of the fan 1 and covers the connecting part I, and the connecting part III is parallel to the connecting part I, and the fan mounting hole II 11 corresponding to the fan mounting hole I 33 is arranged on the connecting part III; the lower end of the connecting part III abuts against the upper end faces of the two fixing plates 21.

[0029] In the embodiment, the heat exchanger mounting holes I 34 on the connecting part I of the surrounding plate assembly 31, the heat exchanger mounting holes II 24 on the connecting part II abutting against the front cover plate assembly 32 side of the fixing plate 21, the fan mounting hole II 11 on the connecting part III corresponding to the connecting part I of the surrounding plate assembly 31, and the fan mounting hole I 33 on the connecting part I of the front cover plate assembly 32 are all undercut holes; the heat exchanger mounting holes II 24 on the connecting part II abutting against the surrounding plate assembly 31 side of the fixing plate 21, the heat exchanger mounting holes I 34 on the connecting part I of the front cover plate assembly 32, the fan mounting hole I 33 on the connecting part I of the surrounding plate assembly 31, and the fan mounting hole II 11 on the connecting part III corresponding to the connecting part I of the front cover plate assembly 32 are all through holes; the undercut holes and the through holes are arranged to make the screw fixing more convenient and fast, reduce the assembly difficulty, and improve the assembly efficiency.

[0030] In the embodiment, the connecting part III corresponding to the connecting part I of the front cover plate assembly 32 is provided with a "U" shaped notch 12, which is mainly used to determine the relative position of the fan 1 and the combustion chamber 3 during assembly, and is beneficial to the assembly of the two.

[0031] It should be clear that the fan 1, the heat exchanger 2, and the combustion chamber 3 in the embodiment can be independently modularly assembled, and the burner 4 can be connected with the combustion chamber 3 as a whole in advance, and then only the overall assembly of each functional unit is needed, and the following is the step of the overall assembly of the combustion heat exchange device in the embodiment: first, the heat exchanger 2 is correspondingly arranged at the upper port of the combustion chamber 3, the heat exchanger mounting hole I 134 on the connecting part I of the surrounding plate assembly 31 and the front cover plate assembly 32 is correspondingly arranged with the heat exchanger mounting hole II 24 on the connecting part II of the fixed plate 21, then the mounting screw is inserted from the through hole side and fixed in the corresponding turning bag hole, and the connection and fixation of the heat exchanger 2 and the combustion chamber 3 are realized; then, the fan 1 is correspondingly arranged above the combustion chamber 3, the fan mounting hole I 133 on the connecting part I of the surrounding plate assembly 31 and the front cover plate assembly 32 is correspondingly arranged with the fan mounting hole II 111 on the connecting part III at the lower end of the fan 1, then the mounting screw is inserted from the through hole side and fixed in the corresponding turning bag hole, and the connection and fixation of the fan 1 and the combustion chamber 3 are realized.

[0032] All the mounting screws in the embodiment are front-mounted, which is convenient for the installation workers to check and can speed up the installation, and further improves the assembly efficiency.

[0033] Embodiment 2

[0034] As a further supplement to Embodiment 1, in the embodiment, the surrounding plate assembly 31 and the front cover plate assembly 32 are a multi-layer hollow structure, a cold air inlet is arranged on the outer surface of the surrounding plate assembly 31 and the front cover plate assembly 32, and a cold air outlet is arranged on the inner surface of the surrounding plate assembly 31 and the front cover plate assembly 32.

[0035] The surrounding plate assembly 31 and the front cover plate assembly 32 in the embodiment adopt a hollow structure, so that a cold air flow channel is formed in the side wall of the combustion chamber 3, so as to realize the air cooling of the surface of the combustion chamber 3, which can effectively reduce the temperature of the surface of the combustion chamber 3 and prolong the service life of the combustion chamber 3.

[0036] Finally, it should be pointed out that the above only describes the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, and for those skilled in the art, the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A combustion heat exchanger device for easy assembly, comprising a fan (1), a heat exchanger (2) and a combustion chamber (3), a burner (4) being installed at the lower end of the combustion chamber (3), characterized in that, The heat exchanger (2) is installed at the upper port of the combustion chamber (3), and the fan (1) is installed above the heat exchanger (2); the fan (1) and the heat exchanger (2) are fixedly connected with the combustion chamber (3) through screws, and the connecting insertion directions of all the screws are consistent; the combustion chamber (3) comprises a surrounding plate assembly (31) and a front cover plate assembly (32), the surrounding plate assembly (31) is in a three-sided enclosure form, and the surrounding plate assembly (31) and the front cover plate assembly (32) correspondingly enclose to form the combustion chamber (3); a connecting portion I is arranged on the upper end of the surrounding plate on the side opposite to the front cover plate assembly (32) and the upper end of the front cover plate assembly (32) respectively and extends upward, and a plurality of fan mounting holes I (33) for connecting the fan (1) and a plurality of heat exchanger mounting holes I (34) for connecting the heat exchanger (2) are arranged on the connecting portion I.

2. The combustion heat exchanger of claim 1, wherein The heat exchanger (2) comprises two symmetrically arranged fixed plates (21), heat exchange pipes (22) and heat exchange fins (23), the heat exchange pipes (22) are arranged in an "S" shape and are fixed through the two fixed plates (21), and the heat exchange fins (23) are installed on the heat exchange pipes (22) in the region between the two fixed plates (21).

3. The combustion heat exchange device of claim 2, wherein The heat exchanger (2) is horizontally installed between the connecting portion I on the surrounding plate assembly (31) and the connecting portion I on the front cover plate assembly (32), and the two end faces of the fixed plate (21) in the length direction respectively abut against the two connecting portions I, and the lower end faces of the two fixed plates (21) respectively abut against the upper end faces of the two surrounding plates in the surrounding plate assembly (31).

4. The combustion heat exchange device of claim 3, wherein The two end faces of the fixed plate (21) abutting against the connecting portion I are both outwardly extended and provided with a connecting portion II, the connecting portion II is parallel to the connecting portion I, and the heat exchanger mounting hole II (24) corresponding to the heat exchanger mounting hole I (34) is arranged on the connecting portion II.

5. The combustion heat exchange device of claim 4, wherein The lower end of the fan (1) is adapted to the upper port of the combustion chamber (3), a connecting portion III is arranged on the lower end of the fan (1) and extends downward, the connecting portion III is arranged on the connecting portion I and is parallel to the connecting portion I, the fan mounting hole II (11) corresponding to the fan mounting hole I (33) is arranged on the connecting portion III, and the lower end of the connecting portion III abuts against the upper end faces of the two fixed plates (21).

6. The combustion heat exchange device of claim 5, wherein The connecting portion III corresponding to the connecting portion I of the front cover plate assembly (32) is provided with a "U"-shaped notch (12).

7. The combustion heat exchange device of claim 5, wherein The heat exchanger mounting hole I (34) on the connecting part I of the surrounding plate assembly (31), the heat exchanger mounting hole II (24) on the connecting part II of the fixed plate (21) abutting against one side of the front cover plate assembly (32), the fan mounting hole II (11) on the connecting part III corresponding to the connecting part I of the surrounding plate assembly (31), and the fan mounting hole I (33) on the connecting part I of the front cover plate assembly (32) are all through holes.

8. The combustion heat exchanger device according to any one of claims 2 to 7, characterized by The surrounding plate assembly (31) and the front cover plate assembly (32) are multi-layer hollow structures, cold air inlets are arranged on the outer surfaces of the surrounding plate assembly (31) and the front cover plate assembly (32), and cold air outlets are arranged on the inner surfaces of the surrounding plate assembly (31) and the front cover plate assembly (32).

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