Heating pipe capable of enhancing heat transfer effect

Abstract

The utility model discloses a heating tube capable of enhancing heat transfer effect, which comprises a protective shell, a wiring part is arranged at one end of the protective shell, a heating core is arranged in the center of the inside of the protective shell, a spiral heat-conducting fin is arranged on the peripheral wall of the heating core, and the spiral heat-conducting fin surrounds the outside of the heating core and is in close contact with the heating core. The inner wall and the outer wall of the protective shell are both provided with spiral heat conduction grooves, and the spiral heat conduction pieces are connected with the protective shell through supporting pieces. The spiral heat-conducting fins are arranged outside the heating core, and the spiral heat-conducting grooves are formed inside and outside the protective shell, so that the heat exchange area is obviously increased, the heat exchange efficiency is improved, and the heating process is accelerated. By arranging the supporting piece between the spiral heat-conducting piece and the protective shell, stable fixation of the heating core is achieved, the local overheating condition is prevented, heat on the spiral heat-conducting piece can be transferred to the protective shell more rapidly, and the heat transfer path is optimized.

Description

Technical Field

[0001] The utility model relates to the technical field of heating equipment, in particular to a heating pipe capable of enhancing heat transfer effect. Background Art

[0002] In industrial production and daily life, as an important heat energy conversion device, heating pipes are widely used in various occasions such as water heating, air heating, material drying, and chemical reaction promotion. Traditional heating pipes often adopt a single straight-line or simple U-shaped bending structure, with low heat transfer efficiency and prone to local overheating, affecting heating uniformity and the service life of the equipment. With the improvement of industrial automation level and the enhancement of energy conservation awareness, higher requirements are put forward for the efficiency, safety, and reliability of heating equipment. For this reason, we propose a heating pipe capable of enhancing heat transfer effect. Content of the Utility Model

[0003] The purpose of the utility model is to provide a heating pipe capable of enhancing heat transfer effect, which greatly improves the heat transfer efficiency and heating uniformity by optimizing the internal and external structures, and solves the problems in the prior art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A heating pipe capable of enhancing heat transfer effect includes a protective shell. One end of the protective shell is provided with a wiring part. A heating core is arranged at the central position inside the protective shell. A spiral heat conducting fin is arranged on the outer peripheral wall of the heating core. The spiral heat conducting fin surrounds the heating core and is in close contact with the heating core. Spiral heat conducting grooves are opened on both the inner wall and the outer wall of the protective shell. The spiral heat conducting fin and the protective shell are connected by support pieces.

[0006] Preferably, the support pieces are made of heat conducting materials. There are three columns of support pieces in total and they are distributed in rotational symmetry. The extending direction of each column of support pieces is the same as the axial direction of the heating core. One end of each support piece is fixed on the outer wall of the spiral heat conducting fin, and the other end is fixed on the inner wall of the spiral heat conducting groove.

[0007] Preferably, an insulating filler is arranged in the cavity inside the protective shell.

[0008] Preferably, a first sealing plug and a second sealing plug are respectively arranged at both ends of the protective shell. The first sealing plug is arranged at the end position of the protective shell, and the second sealing plug is arranged at one end of the protective shell close to the wiring part.

[0009] Preferably, a number of sealing rings are arranged in a row on the outer peripheral wall of the second sealing plug. The sealing rings are of an upper-wide and lower-narrow structure.

[0010] Preferably, an end cover is fixed at one end of the second sealing plug facing the wiring part.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. By arranging a spiral heat conducting fin outside the heating core and spiral heat conducting grooves inside and outside the protective shell, the present utility model significantly increases the heat exchange area, improves the heat exchange efficiency, and accelerates the heating process.

[0013] 2. By arranging a support piece between the spiral heat conducting fin and the protective shell, the present utility model not only realizes the stable fixation of the heating core, avoids the position deviation of the heating core in the protective shell, which may cause uneven internal heating and prevent local overheating, reduces the failure rate of the device, but also the heat conducting advantage of the support piece can transfer the heat on the spiral heat conducting fin to the protective shell more quickly, optimizes the heat transfer path, and improves the heating performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is an axonometric view of the overall structure of the present utility model;

[0015] Figure 2 is a first internal structure diagram of the protective shell of the present utility model;

[0016] Figure 3 is a second internal structure diagram of the protective shell of the present utility model;

[0017] Figure 4 is a schematic cross-sectional view of the protective shell of the present utility model;

[0018] In the figure: 1. Protective shell; 2. Heating core; 3. Spiral heat conducting fin; 4. Spiral heat conducting groove; 5. Support piece; 6. Wiring part; 7. First sealing plug; 8. Second sealing plug; 9. Sealing ring; 10. Insulating filler; 11. End cover. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0020] In order to solve the problems of low heat transfer efficiency and easy occurrence of local overheating in the prior art, the following technical solutions are given. Please refer to Figures 1-4 ;

[0021] A heating tube capable of enhancing heat transfer effect, including a protective shell 1. The protective shell 1 is made of high-temperature resistant hard material and serves as the outer shell of the entire heating tube to protect its interior from external damage. One end of the protective shell 1 is provided with a wiring part 6, through which an external wire is connected to the internal heating core 2. The heating core 2 is arranged at the central position inside the protective shell 1 and generates heat, which can be composed of heating elements such as resistance wires and infrared rays. A spiral heat conducting fin 3 is arranged on the outer peripheral wall of the heating core 2. The spiral heat conducting fin 3 surrounds the heating core 2 and is in close contact with the heating core 2. Its spiral structure with a thickness increases the heat exchange area. Spiral heat conducting grooves 4 are opened on both the inner wall and the outer wall of the protective shell 1. The spiral heat conducting grooves 4 increase the contact area between the protective shell 1 and the heating target, thereby improving the heat exchange effect and further enhancing heat transfer.

[0022] The spiral heat conducting fin 3 and the protective shell 1 are connected by support pieces 5. The support pieces 5 are made of heat conducting material. There are three columns of support pieces 5 in total and they are rotationally symmetrically distributed. The extending direction of each column of support pieces 5 is the same as the axial direction of the heating core 2. One end of each support piece 5 is fixed to the outer wall of the spiral heat conducting fin 3, and the other end is fixed to the inner wall of the spiral heat conducting groove 4. An insulating filler 10 is arranged in the cavity inside the protective shell 1, which plays the roles of heat preservation, insulation and heat transfer. The arrangement of the support pieces 5 can stably connect the heating core 2 and the spiral heat conducting fin 3 inside the protective shell 1, preventing the heating core 2 from shifting inside the protective shell 1 and causing local overheating, and increasing the contact area between the spiral heat conducting fin 3 and the insulating filler 10 to make it heat up faster. Since the spiral heat conducting fin 3 and the support pieces 5 have relatively better heat conduction advantages, they heat up faster than the insulating filler 10, and thus can transfer heat to the protective shell 1 prior to the insulating filler 10, optimizing the heat energy conduction path.

[0023] A first sealing plug 7 and a second sealing plug 8 are respectively arranged at both ends of the protective shell 1. The first sealing plug 7 is arranged at the end position of the protective shell 1, and the second sealing plug 8 is arranged at one end of the protective shell 1 close to the wiring part 6. A number of sealing rings 9 are arranged in a row on the outer peripheral wall of the second sealing plug 8. The sealing rings 9 are of an upper-wide and lower-narrow structure. A end cover 11 is fixed to the end of the second sealing plug 8 facing the wiring part 6. The first sealing plug 7 plays a role in closing the end of the protective shell 1 to protect the internal structure. The second sealing plug 8 is used to install the protective shell 1 above the heated target. After passing the protective shell 1 through the reserved installation hole, press the end cover 11 to push the second sealing plug 8 into the installation hole. The structural setting of the sealing rings 9 makes it convenient to pass through the installation hole, and the sealing rings 9 can seal the installation hole to prevent internal heat from leaking through the installation hole.

[0024] Working principle: When an electric current passes through the heating core 2, the generated heat is transferred to the spiral heat conducting sheet 3 and the insulating filler 10. The spiral heat conducting sheet 3 preferentially transfers the heat to the protective shell 1 through the support sheet 5 first, so that the protective shell 1 heats the external heat-receiving target after being heated. The heating of the spiral heat conducting sheet 3 and the support sheet 5 also accelerates the heating of the insulating filler 10, thereby also improving its heat transfer efficiency.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention.

Claims

1. A heating tube capable of enhancing heat transfer effect, comprising a protective shell (1), characterized in that: A wiring portion (6) is provided at one end of the protective shell (1), a heating core (2) is provided at the center of the interior of the protective shell (1), a spiral heat-conducting sheet (3) is provided on the outer peripheral wall of the heating core (2), the spiral heat-conducting sheet (3) surrounds the outside of the heating core (2) and is in close contact with the heating core (2), the inner wall and the outer wall of the protective shell (1) are both provided with spiral heat-conducting grooves (4), and the spiral heat-conducting sheet (3) and the protective shell (1) are connected via a supporting sheet (5).

2. A heating tube capable of enhancing heat transfer effect according to claim 1, characterized in that: The support sheet (5) is made of a heat-conducting material. The support sheets (5) are arranged in three rows and are distributed in a rotationally symmetrical manner. The extension direction of each row of support sheets (5) is the same as the axial direction of the heating core (2). One end of each support sheet (5) is fixed to the outer wall of the spiral heat-conducting sheet (3), and the other end is fixed to the inner wall of the spiral heat-conducting groove (4).

3. A heating tube capable of enhancing heat transfer effect according to claim 2, characterized in that: An insulating filler (10) is provided in the cavity inside the protective shell (1).

4. A heating tube capable of enhancing heat transfer effect according to claim 3, characterized in that: A first sealing plug (7) and a second sealing plug (8) are respectively provided at both ends of the protective shell (1); the first sealing plug (7) is arranged at the end of the protective shell (1), and the second sealing plug (8) is arranged at an end of the protective shell (1) close to the wiring portion (6).

5. A heating tube capable of enhancing heat transfer effect according to claim 4, characterized in that: A plurality of sealing rings (9) are arranged on the outer peripheral wall of the second sealing plug (8), and the sealing rings (9) are of a structure that is wide at the top and narrow at the bottom.

6. A heating tube capable of enhancing heat transfer effect according to claim 5, characterized in that: An end cap (11) is fixed to one end of the second sealing plug (8) facing the wiring portion (6).

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