CN219572785U

CN219572785U - Bimetal composite finned tube

Info

Publication number: CN219572785U
Application number: CN202223562930.5U
Authority: CN
Inventors: 陆烨星
Original assignee: Jiangyin Bosheng Thermal Energy Technology Co ltd
Current assignee: Jiangyin Bosheng Thermal Energy Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-08-22
Anticipated expiration: 2032-12-30

Abstract

The utility model is suitable for the technical field of finned tubes, and provides a bimetal composite finned tube which comprises an inner metal tube, an outer metal tube and radiating fins; the inner peripheral side surface of the outer metal tube is provided with inner convex ribs in a circumferential array; arc grooves are formed in the side faces of the periphery of the outer metal tube; the inner convex rib is in sliding fit with the convex rib groove; arc plates are symmetrically arranged on two side surfaces of the radiating fin; the arc-shaped plate is in plug-in fit with the arc-shaped groove; the bottom of the radiating fin is provided with a plugboard; the plugboard is respectively matched with the upper plugboard groove and the lower plugboard groove in a pluging manner. The device is through sliding interior tubular metal resonator into outer tubular metal resonator, through the cooperation in protruding muscle and the protruding muscle groove, has improved the stability of being connected between interior tubular metal resonator and the outer tubular metal resonator, through the picture peg with radiating fin bottom intubate go up the grafting groove, down in the grafting groove to fixed through fastening screw, further improved the stability of being connected between interior tubular metal resonator and the outer tubular metal resonator, replace the bimetallic finned tube of traditional integrated structure, be convenient for equipment and maintenance change.

Description

Bimetal composite finned tube

Technical Field

The utility model relates to the technical field of finned tubes, in particular to a bimetal composite finned tube.

Background

The finned tube is widely applied to heat exchanger tubes in the fields of petroleum, chemical industry, electric power, refrigeration industry and the like, and because the environment is complex, the finned tube often works under the conditions of high temperature and strong corrosion, so the corrosion resistance of the finned tube becomes a problem to be solved urgently.

The inner layer tube and the outer layer tube of the bimetal composite fin tube are made of different metal materials, one metal meets the required strength requirement or has excellent heat conduction performance, and the other metal has excellent corrosion resistance or wear resistance, so that the bimetal composite fin tube not only has the required high strength and high heat conductivity, but also has excellent corrosion resistance, wear resistance and other performances.

The preparation method of the bimetal composite fin tube has the publication number of CN104475615A after searching. The preparation method comprises the steps of firstly, preprocessing an inner pipe and an outer pipe to obtain a metal matrix with a bright surface; combining the inner pipe and the outer pipe to form a sleeve; then adopting a three-roller planetary rolling mill to roll and compound the inner sleeve and the outer sleeve into a shape at one time, and carrying out online induction heating on the sleeve during rolling to prepare the bimetal composite light pipe; finally, preparing fins on the composite light pipe through rolling or welding to obtain the bimetal composite finned pipe. The method can be used for preparing the bimetal composite finned tube with the corrosion-resistant outer layer, and the composite metal has high bonding strength.

However, the inner and outer tubes of the bimetal composite fin tube are formed by one-time rolling and composite molding, and the fins are welded on the outer tube, so that the bimetal composite fin tube is of an integrated structure, and is inconvenient for later maintenance and replacement.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the bimetal composite finned tube which is convenient to assemble and maintain and replace by sliding the inner metal tube into the outer metal tube, matching the inner convex ribs with the convex rib grooves, improving the stability of connection between the inner metal tube and the outer metal tube, inserting the plugboard at the bottom of the radiating fin into the upper inserting groove and the lower inserting groove, fixing the plugboard by fastening screws, further improving the stability of connection between the inner metal tube and the outer metal tube, replacing the conventional bimetal finned tube with an integrated structure.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

a bimetal composite fin tube comprises an inner metal tube, an outer metal tube sleeved outside the inner metal tube and radiating fins distributed on the outer metal tube in a circumferential array; the inner peripheral side surface of the outer metal tube is provided with inner convex ribs in a circumferential array distribution manner; the outer circumferential side surface of the outer metal tube is provided with arc grooves in a circumferential array distribution manner; an upper inserting groove is formed in the inner bottom surface of the arc-shaped groove; the outer peripheral side surface of the inner metal pipe is provided with convex rib grooves matched with the inner convex ribs in a circumferential array distribution manner; the outer wall of the inner metal tube is arranged on the inner wall of the outer metal tube in a sliding manner; the inner convex ribs are in sliding fit with the convex rib grooves; a lower inserting groove is formed between adjacent convex rib grooves on the peripheral side surface of the inner metal pipe; arc plates are symmetrically arranged on two side surfaces of the radiating fin; the arc-shaped plate is in plug-in fit with the arc-shaped groove; the bottom of the radiating fin is provided with a plugboard; the plugboard is in plug-in fit with the upper plug-in groove and the lower plug-in groove respectively.

The utility model is further provided with: first mounting holes are symmetrically formed in the bottoms of the arc-shaped grooves; the peripheral side surfaces of the arc-shaped plates are respectively provided with a second mounting hole; the first mounting hole is fixedly connected with the second mounting hole through a fastening screw.

The utility model is further provided with: and outer convex ribs are arranged on the peripheral side surface of the outer metal pipe and positioned between two adjacent arc-shaped grooves.

The utility model is further provided with: radiating protrusions are symmetrically arranged on two side surfaces of the radiating fins.

The utility model is further provided with: fixing rings are fixedly connected to the inner peripheral side surface of the inner metal pipe close to two ends; the side surfaces of the fixing rings are respectively provided with a third mounting hole; the inner peripheral side surface of the inner metal tube is in sliding fit with a connecting ring; the side surfaces of the connecting rings are respectively provided with a fourth mounting hole; the third mounting hole is fixedly connected with the fourth mounting hole through a fastening screw; the inner peripheral side surface of the connecting ring is provided with a filter screen.

The utility model has the advantages that:

1. according to the utility model, the inner metal tube is slid into the outer metal tube, the connection stability between the inner metal tube and the outer metal tube is improved through the matching of the inner convex ribs and the convex rib grooves, the plugboard at the bottom of the radiating fin is inserted into the upper plug-in groove and the lower plug-in groove and fixed through the fastening screw, the connection stability between the inner metal tube and the outer metal tube is further improved, the conventional integrated bimetal finned tube is replaced, and the assembly and subsequent maintenance and replacement are facilitated.

2. According to the utility model, the outer ribs are arranged on the side surfaces of the periphery of the outer metal tube, so that the heat conduction area of the outer metal tube is increased, and the heat exchange effect is improved; through all establishing the heat dissipation arch at heat dissipation fin both sides face, increased heat dissipation fin's heat radiating area, further improved the heat transfer effect.

3. According to the utility model, the two groups of filter screens are fixedly arranged at two ends of the inner metal pipe through the fastening screws, so that scraps are filtered, the flowing scraps are prevented from scratching the inner metal pipe, and the service life of the inner metal pipe is prolonged.

Drawings

FIG. 1 is a schematic view of a bimetallic composite finned tube of the present utility model;

FIG. 2 is a schematic view of the structure of the inner metal tube of the present utility model;

FIG. 3 is a schematic view of another angle of the inner metal tube according to the present utility model;

FIG. 4 is a schematic view of the structure of the outer metal tube of the present utility model;

FIG. 5 is a schematic view of a heat dissipating fin according to the present utility model;

FIG. 6 is a schematic view of a filter screen according to the present utility model;

in the figure: 1. an inner metal tube; 2. an outer metal tube; 3. a heat radiation fin; 4. an inner convex rib; 5. an arc-shaped groove; 6. an upper insertion groove; 7. convex rib grooves; 8. a lower insertion groove; 9. an arc-shaped plate; 10. inserting plate; 11. a first mounting hole; 12. a second mounting hole; 13. a convex rib; 14. a heat radiation protrusion; 15. a fixing ring; 16. a third mounting hole; 17. a connecting ring; 18. a fourth mounting hole; 19. and (3) a filter screen.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, the terms "upper" and "lower" are used generally with respect to the directions shown in the drawings, or with respect to the vertical, vertical or gravitational directions; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

Example 1

Referring to fig. 1-6, the first embodiment provides the following technical solutions:

the bimetal composite fin tube comprises an inner metal tube 1, an outer metal tube 2 sleeved outside the inner metal tube 1 and radiating fins 3 distributed on the outer metal tube 2 in a circumferential array; the inner peripheral side surface of the outer metal tube 2 is provided with inner convex ribs 4 in a circumferential array distribution; arc-shaped grooves 5 are distributed on the peripheral side surface of the outer metal tube 2 in a circumferential array; an upper inserting groove 6 is formed in the inner bottom surface of the arc-shaped groove 5; the peripheral side surface of the inner metal tube 1 is provided with convex rib grooves 7 which are matched with the inner convex ribs 4 in a circumferential array manner; the outer wall of the inner metal tube 1 is arranged on the inner wall of the outer metal tube 2 in a sliding way; the inner convex rib 4 is in sliding fit with the convex rib groove 7; a lower inserting groove 8 is formed between adjacent convex rib grooves 7 on the peripheral side surface of the inner metal tube 1; arc plates 9 are symmetrically arranged on two side surfaces of the radiating fin 3; the arc-shaped plate 9 is in plug-in fit with the arc-shaped groove 5; the bottom of the radiating fin 3 is provided with a plugboard 10; the plugboard 10 is respectively in plug-in fit with the upper plug-in groove 6 and the lower plug-in groove 8; the bottoms of the arc grooves 5 are symmetrically provided with first mounting holes 11; the peripheral side surfaces of the arc-shaped plates 9 are provided with second mounting holes 12; the first mounting hole 11 is fixedly connected with the second mounting hole 12 through a fastening screw.

The specific implementation manner of the first embodiment is as follows: the inner metal tube 1 is slid into the outer metal tube 2, the stability of connection between the inner metal tube 1 and the outer metal tube 2 is improved through the matching of the inner convex ribs 4 and the convex rib grooves 7, the plugboard 10 at the bottom of the radiating fin 3 is inserted into the upper plugboard 6 and the lower plugboard 8 and fixed through the fastening screw, the stability of connection between the inner metal tube 1 and the outer metal tube 2 is further improved, the conventional integrated bimetal finned tube is replaced, and the assembly and subsequent maintenance and replacement are facilitated.

Example two

Referring to fig. 4, the second embodiment provides the following technical solutions on the premise of the first embodiment: the outer peripheral side surface of the outer metal tube 2 is positioned between two adjacent arc grooves 5 and is provided with an outer convex rib 13.

The specific implementation manner of the second embodiment is as follows: the outer metal tube 2 is provided with the outer convex ribs 13 on the side surface of the outer periphery, so that the heat dissipation area of the outer metal tube 2 is increased, and the heat exchange capacity is improved; the outer metal tube 2 is a pure titanium tube, and the inner metal tube 1 is a copper tube.

Example III

Referring to fig. 5, the third embodiment provides the following technical solutions on the premise of the first embodiment: the two side surfaces of the radiating fin 3 are symmetrically provided with radiating bulges 14.

The third embodiment of the present utility model is as follows: the heat radiating protrusions 14 are symmetrically arranged on the two sides of the heat radiating fin 3, so that the heat radiating area of the heat radiating fin 3 is increased, and the heat exchanging capacity is further improved.

Example IV

Referring to fig. 3 and 6, the fourth embodiment provides the following technical solutions on the premise of the first embodiment: the inner circumference side surface of the inner metal tube 1 is fixedly connected with a fixing ring 15 near two ends; the side surfaces of the fixed rings 15 are provided with third mounting holes 16; the inner peripheral side surface of the inner metal tube 1 is in sliding fit with a connecting ring 17; the side surfaces of the connecting rings 17 are provided with fourth mounting holes 18; the third mounting hole 16 is fixedly connected with the fourth mounting hole 18 through a fastening screw; the inner peripheral side surface of the connecting ring 17 is provided with a filter screen 19.

The specific implementation manner of the fourth embodiment is as follows: the connecting ring 17 is fixedly arranged on the fixed ring 15 in the inner metal tube 1 through the fastening screw, so that two groups of filter screens 10 are fixedly arranged at the positions, close to two ends, of the inner wall of the inner metal tube 1, and fragments are filtered, so that the flowing fragments are prevented from scratching the inner wall of the inner metal tube 1.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the utility model described herein may be implemented in sequences other than those illustrated or otherwise described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. The bimetal composite fin tube comprises an inner metal tube (1), an outer metal tube (2) sleeved outside the inner metal tube (1) and radiating fins (3) distributed on the outer metal tube (2) in a circumferential array; the method is characterized in that:

the inner peripheral side surface of the outer metal tube (2) is provided with inner convex ribs (4) in a circumferential array distribution; arc-shaped grooves (5) are distributed on the peripheral side surface of the outer metal tube (2) in a circumferential array; an upper inserting groove (6) is formed in the inner bottom surface of the arc-shaped groove (5);

the outer circumferential side surface of the inner metal tube (1) is provided with convex rib grooves (7) which are matched with the inner convex ribs (4) in a circumferential array distribution manner; the outer wall of the inner metal tube (1) is arranged on the inner wall of the outer metal tube (2) in a sliding manner; the inner convex rib (4) is in sliding fit with the convex rib groove (7);

a lower inserting groove (8) is formed between adjacent convex rib grooves (7) on the peripheral side surface of the inner metal pipe (1); arc plates (9) are symmetrically arranged on two side surfaces of the radiating fin (3); the arc-shaped plate (9) is in plug-in fit with the arc-shaped groove (5); the bottom of the radiating fin (3) is provided with an inserting plate (10); the plugboard (10) is in plug-in fit with the upper plug-in groove (6) and the lower plug-in groove (8) respectively.

2. A bimetallic composite finned tube according to claim 1, wherein: first mounting holes (11) are symmetrically formed in the bottoms of the arc-shaped grooves (5); the peripheral side surfaces of the arc-shaped plates (9) are provided with second mounting holes (12); the first mounting hole (11) and the second mounting hole (12) are fixedly connected through a fastening screw.

3. A bimetallic composite finned tube according to claim 1, wherein: the outer peripheral side surface of the outer metal tube (2) is positioned between two adjacent arc grooves (5) and is provided with an outer convex rib (13).

4. A bimetallic composite finned tube according to claim 1, wherein: radiating bulges (14) are symmetrically arranged on two side surfaces of the radiating fin (3).

5. A bimetallic composite finned tube according to claim 1, wherein: fixing rings (15) are fixedly connected to the inner peripheral side surface of the inner metal tube (1) close to two ends; the side surfaces of the fixed rings (15) are provided with third mounting holes (16); the inner peripheral side surface of the inner metal tube (1) is in sliding fit with a connecting ring (17); the side surfaces of the connecting rings (17) are provided with fourth mounting holes (18); the third mounting hole (16) is fixedly connected with the fourth mounting hole (18) through a fastening screw; the inner peripheral side surface of the connecting ring (17) is provided with a filter screen (19).