Cast aluminum heating body internal water pipe overlapping structure

Abstract

The utility model discloses a cast aluminum heating body internal water pipe overlapping structure which comprises a heating pipe, a first water pipe and a second water pipe, the first water pipe comprises a first coil pipe section, a plurality of first bend pipe structures are formed on the first coil pipe section in a bending mode, and a first bend pipe gap is formed between any two adjacent first bend pipe structures at intervals. The second water pipe comprises a second coil pipe section, a plurality of second bent pipe structures are formed on the second coil pipe section in a bent mode, a second bent pipe gap is formed between any two adjacent second bent pipe structures at intervals, the first bent pipe structures are embedded in the second bent pipe gaps, and the second bent pipe structures are embedded in the first bent pipe gaps. And the first water pipe and the second water pipe are overlapped into a whole. The water pipe overlapping structure in the cast aluminum heating body has the advantages of compact structure, high space utilization rate, high heat exchange efficiency and high heat utilization rate.

Description

Technical Field

[0001] This utility model relates to the field of heater technology, specifically to a composite structure of internal water pipes in a cast aluminum heating element. Background Technology

[0002] Currently, cast aluminum heating elements on the market suffer from significant pressure loss in the inlet and outlet water due to limitations in pipe diameter. Simply increasing the pipe diameter would increase the overall volume and weight of the cast aluminum heating element. Therefore, it is necessary to design a new type of internal water pipe structure for cast aluminum heating elements to solve the problem of large pressure loss in the inlet and outlet water. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a composite structure of internal water pipes in a cast aluminum heating element that is compact, has high space utilization, and high heat exchange efficiency and heat utilization.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A composite water pipe structure inside a cast aluminum heating element includes several sets of heating tubes and a first water pipe and a second water pipe spirally wound around the heating tubes. The first water pipe has a first inlet and a first outlet, and the second water pipe has a second inlet and a second outlet. The first water pipe includes a first coil section, on which several first bend structures are bent and formed, with a first bend gap formed between any two adjacent first bend structures. The second water pipe includes a second coil section, on which several second bend structures are bent and formed, with a second bend gap formed between any two adjacent second bend structures. The first bend structures are embedded in the second bend gaps, and the second bend structures are embedded in the first bend gaps, so that the first water pipe and the second water pipe are superimposed as a whole.

[0006] As a further improvement to the above technical solution:

[0007] The first water pipe also includes a first inlet pipe section and a first outlet pipe section. The first inlet pipe section is connected to the lower end of the first coil section, and the first outlet pipe section is connected to the upper end of the first coil section.

[0008] The second water pipe also includes a second inlet pipe section and a second outlet pipe section. The second inlet pipe section is connected to the lower end of the second coil section, and the second outlet pipe section is connected to the upper end of the second coil section.

[0009] The diameter of the first water pipe is the same as the diameter of the second water pipe.

[0010] The heating element is a straight tube type heating wire tube, and several groups of the heating elements are arranged side by side along a straight line.

[0011] Compared with the prior art, the advantages of this utility model are:

[0012] The internal water pipe stacked structure of this utility model's cast aluminum heating element includes a heating tube and a first water pipe and a second water pipe spirally wound around the heating tube. The first water pipe has a first bend gap, and the second water pipe has a second bend gap. The first bend structure on the first water pipe is embedded within the second bend gap, and the second bend structure on the second water pipe is embedded within the first bend gap, thus stacking the first and second water pipes into a single unit, forming a double-inlet, double-outlet structure. This effectively increases the flow area without changing the overall volume of the cast aluminum heating element, improving space utilization. Compared to existing single-channel inlet / outlet structures of the same volume, the use of a double-inlet, double-outlet structure increases the inlet and outlet water flow rate. Without increasing the volume of the cast aluminum heating element, it reduces the inlet and outlet water pressure loss, resulting in a compact structure, high space utilization, high heat exchange efficiency, and high thermal efficiency. This reduces energy loss in the cast aluminum heating element system and extends its service life. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal water pipe stacking structure of the cast aluminum heating element.

[0014] Figure 2 This is a schematic diagram showing the disassembled structure of the internal water pipe stacked structure of the cast aluminum heating element.

[0015] Legend:

[0016] 1. Heating element; 2. First water pipe; 201. First water inlet; 202. First water outlet; 203. First coil section; 204. First water inlet section; 205. First water outlet section; 3. Second water pipe; 301. Second water inlet; 302. Second water outlet; 303. Second coil section; 304. Second water inlet section; 305. Second water outlet section; 4. First bend structure; 5. First bend gap; 6. Second bend structure; 7. Second bend gap. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 and Figure 2As shown, the internal water pipe stacking structure of the cast aluminum heating element in this embodiment includes several sets of heating tubes 1 and a first water pipe 2 and a second water pipe 3 spirally coiled around the heating tubes 1. The first water pipe 2 has a first inlet 201 and a first outlet 202, and the second water pipe 3 has a second inlet 301 and a second outlet 302. The first water pipe 2 includes a first coil section 203, on which several first bend structures 4 are bent and formed. A first bend gap 5 is formed between any two adjacent first bend structures 4. The second water pipe 3 includes a second coil section 303, on which several second bend structures 6 are bent and formed. A second bend gap 7 is formed between any two adjacent second bend structures 6. The first bend structures 4 are embedded in the second bend gap 7, and the second bend structures 6 are embedded in the first bend gap 5, so that the first water pipe 2 and the second water pipe 3 are stacked as one unit. The internal water pipe stacked structure of this cast aluminum heating element includes a heating tube 1 and a first water pipe 2 and a second water pipe 3 spirally wound around the heating tube 1. The first water pipe 2 has a first bend gap 5, and the second water pipe 3 has a second bend gap 7. The first bend structure 4 on the first water pipe 2 is embedded in the second bend gap 7, and the second bend structure 6 on the second water pipe 3 is embedded in the first bend gap 5. This allows the first water pipe 2 and the second water pipe 3 to be stacked as a single unit, forming a double-inlet, double-outlet structure. This effectively increases the flow area without changing the overall volume of the cast aluminum heating element, thus improving space utilization. Compared to existing single-channel inlet / outlet structures of the same volume, the use of a double-inlet, double-outlet structure increases the flow rate of the inlet and outlet water. Without increasing the volume of the cast aluminum heating element, it reduces the inlet and outlet water pressure loss. It has the advantages of compact structure, high space utilization, high heat exchange efficiency, and high thermal utilization rate, reducing energy loss and extending the service life of the cast aluminum heating element system.

[0019] Preferably, the first water pipe 2 further includes a first inlet pipe section 204 and a first outlet pipe section 205, the first inlet pipe section 204 being connected to the lower end of the first coil section 203, and the first outlet pipe section 205 being connected to the upper end of the first coil section 203; the second water pipe 3 further includes a second inlet pipe section 304 and a second outlet pipe section 305, the second inlet pipe section 304 being connected to the lower end of the second coil section 303, and the second outlet pipe section 305 being connected to the upper end of the second coil section 303. In this embodiment, the first water pipe 2 is used as an example. Since hot water has a lower density and floats, while cold water has a higher density and sinks, cold water is input from the first inlet 201, enters the lower end of the first coil section 203 through the first inlet pipe section 204, and flows upward. This avoids turbulence caused by density differences and facilitates effective heat exchange. The heated hot water flows from the upper end of the first coil section 203 to the first outlet pipe section 205 and is output from the first outlet 202. The second water pipe 3 is similar, and will not be described again here. Specifically, in this embodiment, the first inlet 201, the first outlet 202, the second inlet 301, and the second outlet 302 are arranged vertically downward.

[0020] Preferably, the diameter of the first water pipe 2 is equal to the diameter of the second water pipe 3.

[0021] Preferably, the heating element 1 is a straight-tube heating wire tube, and several groups of heating elements 1 are arranged side by side along a straight line. In this embodiment, the heating element 1 is a straight-tube electric heating wire tube, which has the advantages of high thermal efficiency, fast thermal response, high temperature control accuracy, long service life, and low cost. The arrangement of multiple groups of heating elements 1 side by side along a straight line not only saves space and reduces the volume of the cast aluminum heating element, but also increases the heating range and improves the heat exchange efficiency. In other embodiments, the heating element 1 can also be selected from U-shaped tubes, S-shaped tubes, etc., and can also be made of materials such as ceramic heating elements or quartz heating elements, and is not limited to this embodiment.

[0022] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A composite structure of internal water pipes in a cast aluminum heating element, characterized in that, It includes several sets of heating tubes (1) and a first water pipe (2) and a second water pipe (3) spirally coiled around the heating tubes (1). The first water pipe (2) has a first inlet (201) and a first outlet (202). The second water pipe (3) has a second inlet (301) and a second outlet (302). The first water pipe (2) includes a first coil section (203). The first coil section (203) is bent into several first bend structures (4). Between any two adjacent first bend structures (4) The first bend gap (5) is formed between the two water pipes (3). The second water pipe (3) includes a second coil section (303). Several second bend structures (6) are formed on the second coil section (303). A second bend gap (7) is formed between any two adjacent second bend structures (6). The first bend structure (4) is embedded in the second bend gap (7). The second bend structure (6) is embedded in the first bend gap (5) so that the first water pipe (2) and the second water pipe (3) are superimposed as one unit.

2. The composite water pipe structure inside the cast aluminum heating element according to claim 1, characterized in that, The first water pipe (2) also includes a first inlet pipe section (204) and a first outlet pipe section (205). The first inlet pipe section (204) is connected to the lower end of the first coil section (203), and the first outlet pipe section (205) is connected to the upper end of the first coil section (203). The second water pipe (3) also includes a second inlet pipe section (304) and a second outlet pipe section (305). The second inlet pipe section (304) is connected to the lower end of the second coil section (303), and the second outlet pipe section (305) is connected to the upper end of the second coil section (303).

3. The composite water pipe structure inside the cast aluminum heating element according to claim 1, characterized in that, The diameter of the first water pipe (2) is equal to the diameter of the second water pipe (3).

4. The composite water pipe structure inside the cast aluminum heating element according to claim 1, characterized in that, The heating element (1) is a straight tube heating wire tube, and several groups of the heating elements (1) are arranged side by side along a straight line.

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