Coil pipe assembly for heat exchanger

Abstract

The utility model provides a coil pipe assembly for a heat exchanger, which relates to the field of heat exchangers and comprises a coil pipe main body, the coil pipe main body comprises zigzag pipe bodies, two ends of each zigzag pipe body are provided with a liquid inlet end and a liquid outlet end, arc-shaped pipes and pipe frames are connected between the zigzag pipe bodies, and the pipe frames are connected through communicating pieces. A heating assembly is arranged on the outer side of the zigzag pipe body and comprises a wiring pipe located on the outer side of the zigzag pipe body, a conductive rod is arranged in the wiring pipe, and the conductive rod is connected with a horizontal heating rod and arc-shaped heating rods through power lines. And meanwhile, the horizontal heating rod and the arc-shaped heating rod are positioned in the zigzag pipe body. The coil pipe assembly for the heat exchanger solves the problems that an existing coil pipe assembly for the heat exchanger is still limited in heat exchange area, so that the heat exchange efficiency is low, and meanwhile heat of internal heat-conducting media is lost.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, and particularly relates to a coil assembly for a heat exchanger. Background Art

[0002] At present, heat exchange tubes are used in existing heat exchangers to conduct heat media. Generally, the heat exchange tubes are in a curved structure or a tube barrel structure formed by accumulating multiple tube bodies in the same direction. After retrieval, the prior art (publication number: CN207019500U) records that "a coil assembly for a heat exchanger includes a frame, a fin group, a heat exchange tube group, and a water collecting pipe group. The fin group is installed on the frame. The fin group includes at least two fins arranged in parallel. The heat exchange tube group has heat exchange tubes that are inserted through the fins. Spiral and inwardly protruding reinforcing ribs are provided on the inner wall of the heat exchange tubes. The water collecting pipe group includes a water inlet collecting pipe assembly and a water outlet collecting pipe assembly. The water inlet collecting pipe assembly is communicated with the inlet of the heat exchange tube group, and the water outlet collecting pipe assembly is communicated with the outlet of the heat exchange tube group. The utility model can not only increase the heat exchange area of the heat exchange tubes, improve the heat exchange efficiency, but also increase the strength of the heat exchange tubes, improve their pressure resistance, increase their service life, and can play a guiding role in the flow of the heat exchange medium, and guide the heat exchange medium well."

[0003] Although the coil assembly for a heat exchanger in the prior art has achieved improved heat exchange efficiency, as well as the strength and pressure resistance of the heat exchange tubes, there are still some deficiencies: the tube body structure involved in the existing coil assembly for a heat exchanger only has a single zigzag structure. Although convex ribs are provided on the inner side to form grooves, the heat exchange area that the grooves can increase is relatively limited. Therefore, the heat exchange contact area between the heat conduction medium and the heat exchange medium flowing outside is still limited. Secondly, the medium flowing inside the existing heat exchanger is usually heated first and then flows through the tube body, resulting in some heat loss when flowing through the tube body. Therefore, the heat conduction effect is not good. Summary of the Utility Model

[0004] In order to overcome the defects existing in the prior art, a coil assembly for a heat exchanger is provided to solve the problems that the existing coil assembly for a heat exchanger still has a limited heat exchange area, resulting in low heat exchange efficiency, and at the same time, there is heat loss of the internal heat conduction medium.

[0005] To achieve the above object, a coil assembly for a heat exchanger is provided, including: a coil main body, the coil main body includes a zigzag tube body, and the two ends of the zigzag tube body are provided with a liquid inlet end and a liquid outlet end, and an arc tube and a tube rack are connected between the zigzag tube bodies. At the same time, the tube racks are connected by a connecting member, a cross tube is arranged between the arc tubes, a heating assembly is arranged outside the zigzag tube body, and the heating assembly includes a wiring tube located outside the zigzag tube body, and a conductive rod is arranged inside the wiring tube, and the conductive rod is connected with a horizontal heating rod and an arc heating rod through a power line. At the same time, both the horizontal heating rod and the arc heating rod are located inside the zigzag tube body.

[0006] Further, the zigzag tube body is arranged in an S-shaped structure, and inner grooves are formed on the inner wall of the zigzag tube body, and the inner grooves are arranged in a circular matrix along the circumferential direction of the inner wall of the zigzag tube body.

[0007] Further, card slots are formed on the outer wall of the zigzag tube body, and the card slots are arranged at equal intervals along each horizontal section of the zigzag tube body.

[0008] Further, the arc tube is connected to the front and rear sides of the zigzag tube body, and the arc tube, the cross tube and the zigzag tube body are communicated with each other.

[0009] Further, the tube rack is arranged as a square tube structure with a hollow interior, and the connecting member is arranged as a six-way tube structure, and the tube rack and the arc tube are alternately arranged in the vertical direction of the coil main body.

[0010] Further, the wiring tube and the zigzag tube body are connected by a connecting pipe, and the horizontal heating rod passes through the connecting pipe, and the arc heating rod is connected between the horizontal heating rods.

[0011] Further, the horizontal heating rod is horizontally inserted into the zigzag tube body, and the arc heating rod is arranged at the arc end of the zigzag tube body, and the horizontal heating rod and the arc heating rod are electrically connected.

[0012] The beneficial effects of the present utility model are as follows:

[0013] 1. By using the inner grooves formed on the inner wall of the zigzag tube body included in the coil main body, the contact area between the heat conduction medium and the tube body is increased on the inner wall of the zigzag tube body. Secondly, through the arc tube and the cross tube connected to the outside of the zigzag tube body, and the tube rack and the connecting member connected between the zigzag tube bodies, the flow area of the heat conduction medium is increased outside the zigzag tube body, so that the flow area of the heat conduction medium is increased on both the inner and outer sides of the coil main body, thereby improving the heat exchange efficiency;

[0014] 2. By using the wiring pipe, conductive rod, power cord, horizontal heating rod and arc heating rod included in the heating assembly, it is convenient to heat the heat-conducting medium inside the zigzag pipe body under the power supply of an external power source, thereby making up for the heat loss of the heat-conducting medium in the conveying pipeline, ensuring a constant temperature in the coil assembly, and thus achieving the expected heat exchange effect. Brief Description of the Drawings

[0015] Figure 1 It is a front view structural schematic diagram of an embodiment of the present invention.

[0016] Figure 2 For an embodiment of the present invention Figure 1 Structural schematic diagram of part A in

[0017] Figure 3 For an embodiment of the present invention Figure 1 Structural schematic diagram of part B in

[0018] Figure 4 It is a partial axial sectional structural schematic diagram of the zigzag pipe body of an embodiment of the present invention.

[0019] Figure 5 It is a partial sectional structural schematic diagram of the zigzag pipe body of an embodiment of the present invention.

[0020] In the figure: 1. Coil main body; 11. Zigzag pipe body; 111. Inner groove; 12. Liquid inlet end; 13. Liquid outlet end; 14. Arc pipe; 15. Cross pipe; 16. Pipe rack; 17. Connecting member; 18. Heating assembly; 181. Wiring pipe; 182. Conductive rod; 183. Power cord; 184. Connecting pipe; 185. Horizontal heating rod; 186. Arc heating rod; 19. Card slot. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Refer to Figures 1 to 5As shown in the figure, the utility model provides a coil assembly for a heat exchanger, including: a coil main body 1, the coil main body 1 includes a zigzag tube body 11, and the two ends of the zigzag tube body 11 are provided with a liquid inlet end 12 and a liquid outlet end 13, and an arc tube 14 and a tube rack 16 are connected between the zigzag tube bodies 11. At the same time, the tube racks 16 are connected by a connecting member 17, a cross tube 15 is arranged between the arc tubes 14, and a heating assembly 18 is arranged outside the zigzag tube body 11. The heating assembly 18 includes a wiring tube 181 located outside the zigzag tube body 11, and a conductive rod 182 is arranged inside the wiring tube 181. The conductive rod 182 is connected to a horizontal heating rod 185 and an arc heating rod 186 through a power cord 183. At the same time, both the horizontal heating rod 185 and the arc heating rod 186 are located inside the zigzag tube body 11.

[0023] In this embodiment, a heat-conducting medium circulates inside the zigzag tube body 11, and the heat-conducting medium is the medium for transferring heat. The heat-conducting medium flows in from the liquid inlet end 12 and then flows out from the liquid outlet end 13. At the same time, the medium to be heated flows past the outside of the zigzag tube body 11.

[0024] As a preferred implementation manner, by setting the arc tube 14 and the tube rack 16, on the one hand, it realizes increasing the flow area of the heat-conducting medium outside the zigzag tube body 11, and on the other hand, it strengthens the overall structural strength of the zigzag tube body 11, so as to avoid deformation caused by long-term fluid impact.

[0025] As shown in Figure 1 、 Figure 3 、 Figure 4 and Figure 5 , the zigzag tube body 11 is arranged in an S-shaped structure, and the inner wall of the zigzag tube body 11 is provided with inner grooves 111, and the inner grooves 111 are arranged in a circular matrix along the circumferential direction of the inner wall of the zigzag tube body 11. The outer wall of the zigzag tube body 11 is provided with card slots 19, and the card slots 19 are arranged at equal intervals along each horizontal section of the zigzag tube body 11. The arc tube 14 is connected to the front and rear sides of the zigzag tube body 11, and the arc tube 14, the cross tube 15 and the zigzag tube body 11 are interconnected. The tube rack 16 is set as a square tube structure with a hollow interior, and the connecting member 17 is set as a six-way tube structure. The tube rack 16 and the arc tube 14 are alternately arranged in the vertical direction of the coil main body 1.

[0026] As a preferred implementation manner, by setting the inner grooves 111 and the card slots 19, the inner and outer surface areas of the zigzag tube body 11 are respectively enlarged, and then the contact areas between the heat-conducting medium inside the tube body and the tube body, and between the heat exchange medium outside the tube body and the tube body are respectively increased, thereby realizing the effect of increasing the overall heat exchange area.

[0027] Specifically, the connection structure of the tube rack 16 and the connecting member 17 has an overall width not exceeding the front and rear edges of the zigzag tube body 11, that is, the edges of the arc tubes 14 on the front and rear sides.

[0028] As shown Figure 1 and Figure 2 As shown, the wiring pipe 181 and the zigzag pipe body 11 are connected by a connecting pipe 184, the horizontal heating rod 185 passes through the connecting pipe 184, the arc heating rod 186 is connected between the horizontal heating rods 185, the horizontal heating rod 185 is horizontally inserted inside the zigzag pipe body 11, the arc heating rod 186 is arranged at the arc end of the zigzag pipe body 11, and the horizontal heating rod 185 and the arc heating rod 186 are electrically connected.

[0029] Specifically, the horizontal heating rod 185 and the arc heating rod 186 are of an integral structure.

[0030] As a preferred embodiment, by providing the heating assembly 18, it is convenient to heat the heat-conducting medium, thereby making up for the heat loss caused during the transportation process.

[0031] During use, by using the inner grooves formed on the inner wall of the zigzag pipe body included in the coil main body, the contact area between the heat-conducting medium and the pipe body is increased on the inner wall of the zigzag pipe body. Secondly, through the arc pipe and the cross pipe connected to the outside of the zigzag pipe body, and the pipe rack and the connecting member connected between the zigzag pipe bodies, the flow area of the heat-conducting medium is increased on the outside of the zigzag pipe body, so that the flow area of the heat-conducting medium is increased on both the inside and outside of the coil main body, thereby improving the heat exchange efficiency; by using the wiring pipe, the conductive rod, the power cord, the horizontal heating rod and the arc heating rod included in the heating assembly, under the power supply of an external power source, it is convenient to heat the heat-conducting medium inside the zigzag pipe body, thereby making up for the heat loss of the heat-conducting medium in the transportation pipeline, thus ensuring a constant temperature in the coil assembly, and further achieving the expected heat exchange effect.

[0032] The coil assembly for a heat exchanger of the present utility model can effectively solve the problems that the existing coil assembly for a heat exchanger still has a limited heat exchange area, resulting in low heat exchange efficiency, and at the same time there is heat loss of the internal heat-conducting medium. On the basis of the existing coil assembly technology for a heat exchanger, the heat exchange area of the heat exchanger coil is further increased, and at the same time, it is convenient to heat the internal heat-conducting medium to make up for the heat loss.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A coil assembly for a heat exchanger, comprising: The coiled pipe main body (1), characterized in that: the coiled pipe main body (1) includes a zigzag pipe body (11), and the two ends of the zigzag pipe body (11) are provided with a liquid inlet end (12) and a liquid outlet end (13), and an arc-shaped pipe (14) and a pipe rack (16) are connected between the zigzag pipe bodies (11). At the same time, the pipe racks (16) are connected by a connecting member (17), and a cross pipe (15) is provided between the arc-shaped pipes (14). A heating assembly (18) is provided outside the zigzag pipe body (11), and the heating assembly (18) includes a wiring pipe (181) located outside the zigzag pipe body (11), and a conductive rod (182) is arranged inside the wiring pipe (181), and the conductive rod (182) is connected to a horizontal heating rod (185) and an arc-shaped heating rod (186) through a power line (183). At the same time, both the horizontal heating rod (185) and the arc-shaped heating rod (186) are located inside the zigzag pipe body (11).

2. The coiled pipe assembly for a heat exchanger according to claim 1, characterized in that, The zigzag pipe body (11) is arranged in an S-shaped structure, and inner grooves (111) are formed on the inner wall of the zigzag pipe body (11), and the inner grooves (111) are arranged in an annular matrix along the circumferential direction of the inner wall of the zigzag pipe body (11).

3. A coiled tube assembly for a heat exchanger according to claim 1, characterized in that, Card slots (19) are formed on the outer wall of the zigzag pipe body (11), and the card slots (19) are arranged at equal intervals along each horizontal section of the zigzag pipe body (11).

4. A coiled tube assembly for a heat exchanger according to claim 1, characterized in that, The arc-shaped pipes (14) are connected to the front and back sides of the zigzag pipe body (11), and the arc-shaped pipes (14), the cross pipes (15) and the zigzag pipe body (11) are interconnected.

5. A coil assembly for a heat exchanger according to claim 1, characterized in that, The pipe rack (16) is a square pipe structure with a hollow interior, and the connecting member (17) is a six-way pipe structure, and the pipe rack (16) and the arc-shaped pipe (14) are alternately arranged in the vertical direction of the coiled pipe main body (1).

6. The coiled tube assembly for a heat exchanger according to claim 1, characterized in that, The wiring pipe (181) and the zigzag pipe body (11) are connected by a connecting pipe (184), and the horizontal heating rod (185) passes through the connecting pipe (184), and the arc-shaped heating rod (186) is connected between the horizontal heating rods (185).

7. A coil assembly for a heat exchanger according to claim 1, characterized in that, The horizontal heating rod (185) is horizontally inserted into the zigzag pipe body (11), and the arc-shaped heating rod (186) is arranged at the arc-shaped end of the zigzag pipe body (11), and the horizontal heating rod (185) and the arc-shaped heating rod (186) are electrically connected.

Images