Heat exchanger for wall-hanging stove

Abstract

The utility model relates to the technical field of wall-hanging stoves, in particular to a special-shaped copper pipe and a heat exchanger for a wall-hanging stove, the length of the overlapped part of the copper pipe and a radiating fin is larger than that of the radiating fin, so that the heat exchange area of the copper pipe and the radiating fin is effectively increased, the shape of the radiating fin is improved, the flow speed of hot air is slowed down, and the heat exchange efficiency is improved; comprising a copper pipe body, the copper pipe body comprises at least one pipe body, and the linear distance between the two ends of the pipe body is smaller than the length of the pipe body.

Description

Technical Field

[0001] The utility model relates to the technical field of wall-mounted boilers, in particular to a special-shaped copper tube and a heat exchanger for a wall-mounted boiler. Background Art

[0002] A wall-mounted boiler is a heating device that is mounted on a wall and is mainly used to heat homes or other buildings. It is a relatively compact and space-saving heating system that is usually installed on a wall, hence the name "wall-mounted boiler". This type of furnace has the advantages of space saving, high efficiency, flexibility, easy installation and fast heating.

[0003] A heat exchanger is used in a wall-mounted boiler to exchange heat between the heated air and water. The heat exchanger has the following shortcomings: the heat exchanger is mainly composed of a copper tube and heat dissipation fins arranged around the copper tube. The copper tube is S-shaped, but the overlapping part of the copper tube and the heat dissipation fin is straight, which leads to low exchange efficiency between the copper tube and the heat dissipation fin. At the same time, the cross-sectional shape of the heat dissipation fin from bottom to top is the same, resulting in low exchange efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a special-shaped copper tube and a heat exchanger for a wall-mounted boiler. The length of the overlapping part of the copper tube and the heat dissipation fin is greater than the length of the heat dissipation fin, which effectively increases the heat exchange area between the copper tube and the heat dissipation fin, and at the same time improves the shape of the heat dissipation fin, slows down the flow rate of hot air, and improves the heat exchange efficiency.

[0005] The utility model discloses a special-shaped copper tube for a wall-mounted boiler, comprising a copper tube main body. The copper tube main body comprises at least one tube body, and the straight-line distance between two ends of the tube body is smaller than the length of the tube body.

[0006] As a preferred solution of the utility model, both ends of the tube body extend outward to form extension parts.

[0007] As a preferred solution of the utility model, two adjacent tubes are connected.

[0008] The utility model discloses a heat exchanger for a wall-mounted boiler, comprising the special-shaped copper tube for the wall-mounted boiler, which is used for wrapping a part of the heat dissipation fins of the copper tube body.

[0009] As a preferred solution of the utility model, the heat dissipation fins include a main body portion for wrapping the tube body and a part of the extension portion, and heat dissipation teeth arranged on the surface of the main body portion.

[0010] As a preferred solution of the utility model, the thickness of the heat dissipation teeth gradually increases from upstream to downstream in the hot air flow direction.

[0011] As a preferred solution of the utility model, one side of the main body portion is an arc-shaped portion, and this side is the upstream side in the hot air flow direction.

[0012] As a preferred solution of the utility model, the root distance between adjacent heat dissipation teeth is greater than the end distance between adjacent heat dissipation teeth.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the device sets the overlapping part of the copper tube and the heat dissipation fin to be non-linear, thereby increasing the length of the copper tube, thereby increasing the water stroke, extending the heat exchange time with the heat dissipation fins, and improving the exchange efficiency; by optimizing the shape of the heat dissipation teeth, the flow rate of hot air is slowed down, so that more hot air can exchange heat with the heat dissipation teeth, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the special-shaped copper tube of the utility model;

[0015] Figure 2 It is a structural schematic diagram of a heat exchanger of the utility model;

[0016] Figure 3 It is a structural schematic diagram of two adjacent heat dissipation teeth;

[0017] Figure 4 yes Figure 4 Bottom view of

[0018] Markings in the accompanying drawings: 1, tube body; 2, extension part; 3, elbow; 4, main part; 5, heat dissipation teeth; 6, arc part; 7, root; 8, end. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0020] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] Example 1

[0023] Reference Figure 1 , which is the first embodiment of the utility model, and provides a special-shaped copper tube for a wall-mounted boiler, including a copper tube body, the copper tube body including at least one tube body 1, the straight-line distance between the two ends of the tube body 1 is less than the length of the tube body 1, the tube body 1 is in a zigzag, spiral or any other shape, and any shape in which the axis does not coincide with the connecting line at the two ends of the tube body 1 can be implemented. In this embodiment, the shape of the tube body 1 is spiral;

[0024] When in use, the overlapping part of the copper tube and the heat sink fin is set to be non-linear, which increases the length of the copper tube compared to the straight copper tube, thereby increasing the water stroke, increasing the contact area between the tube body 1 and the heat sink fin, extending the heat exchange time with the heat sink fin, and improving the exchange efficiency;

[0025] As a preferred solution of the utility model, both ends of the tube body 1 extend outward to form an extension portion 2, the axis of the extension portion 2 coincides with the connecting line at both ends of the tube body 1, and the heat dissipation fins partially wrap the extension portion 2 inside. Since the axis of the extension portion 2 coincides with the connecting line at both ends of the tube body 1, there is no angle between the extension portion 2 and the heat dissipation fins, and the fixing effect is better.

[0026] As a preferred embodiment of the present invention, two adjacent tube bodies 1 are connected. As shown in the figure, the two adjacent tube bodies 1 are connected through an extension portion 2 and a bend 3. The tube bodies 1 are connected to form a special-shaped copper tube. When water flows in the special-shaped copper tube, it flows in from one end of the special-shaped copper tube and flows out from the other end.

[0027] Example 2

[0028] Reference Figure 2-Figure 4 , which is the second embodiment of the utility model, and which provides a heat exchanger for a wall-mounted boiler, including a special-shaped copper tube for a wall-mounted boiler, which is used to wrap a portion of the heat dissipation fins of the copper tube body;

[0029] When in use, the overlapping part of the copper tube and the heat sink fin is set to be non-linear, which increases the length of the copper tube, thereby increasing the water stroke, increasing the contact area between the tube body 1 and the heat sink fin, extending the heat exchange time with the heat sink fin, and improving the exchange efficiency.

[0030] As a preferred solution of the utility model, the heat dissipation fins include a main part 4 for wrapping the tube body 1 and the partial extension part 2, and heat dissipation teeth 5 arranged on the surface of the main part 4, and the heat dissipation teeth 5 are evenly distributed on both sides of the main part 4. Due to the special shape of the special-shaped copper tube, it is more difficult to machine the main part 4, so the main part 4 can be cast from a metal with good thermal conductivity. The main part 4 and the heat dissipation teeth 5 of this embodiment are both made of aluminum. The main part 4 is a rectangular parallelepiped, wrapping the tube body 1 and the partial extension part 2 inside. This processing method makes the contact area between the main part 4 and the special-shaped copper tube large and the heat exchange efficiency high.

[0031] As a preferred solution of the utility model, the thickness of the heat dissipation teeth 5 gradually increases from upstream to downstream in the hot air flow direction. As shown in the figure, the hot air flows from bottom to top, and the thickness of the heat dissipation teeth 5 gradually increases, so that the resistance received by the hot air increases, slowing down the flow rate of the hot air, thereby extending the heat exchange area with the heat dissipation teeth 5.

[0032] As a preferred solution of the utility model, one side of the main body part 4 is an arc-shaped part 6, and this side is the upstream side of the hot air flow direction. As shown in the figure, the arc-shaped part 6 extends from the middle to both sides to form an arc, and the hot air flows from the bottom of the arc-shaped part 6 to the arc-shaped part 6. When the hot air contacts the arc-shaped part 6, the arc-shaped part 6 plays a role of guiding the hot air, so that the hot air flows to the heat dissipation teeth 5, reducing the effect of air vibration.

[0033] As a preferred solution of the utility model, the distance between the roots 7 of adjacent heat dissipating teeth 5 is greater than the distance between the ends 8 of adjacent heat dissipating teeth 5. The root 7 mentioned here is one end of the heat dissipating tooth 5 connected to the main body 4, and the end 8 is the other end of the heat dissipating tooth 5. As shown in the figure, the distance between the roots 7 of adjacent heat dissipating teeth 5 is greater than the distance between the ends 8 of adjacent heat dissipating teeth 5, and the space at the roots 7 of adjacent heat dissipating teeth 5 is greater than the space at the ends 8, which helps hot air flow in the space at the roots 7 and improves the heat exchange efficiency.

[0034] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible, for example, the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc., mounting arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to the specific embodiments of the specification, but extends to various modifications that still fall within the scope of the appended claims.

[0035] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment may not be described (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention).

[0036] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0037] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A heat exchanger for a wall-mounted boiler, characterized in that: It comprises a copper tube body, the copper tube body comprises at least one tube body, the straight-line distance between the two ends of the tube body is less than the length of the tube body; the shape of the tube body is spiral; both ends of the tube body extend outward to form an extension portion; two adjacent tube bodies are connected; It also includes a heat dissipation fin for wrapping part of the copper tube body; the heat dissipation fin includes a main body part for wrapping the tube body and part of the extension part, and heat dissipation teeth arranged on the surface of the main body part; the thickness of the heat dissipation teeth gradually increases from upstream to downstream in the direction of hot air flow; one side of the main body part is an arc-shaped part, and this side is the upstream side in the direction of hot air flow.

2. A heat exchanger for a wall-mounted boiler as claimed in claim 1, characterized in that: The root distance between adjacent heat dissipation teeth is greater than the end distance between adjacent heat dissipation teeth.

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