Direct-cooling harmonica-shaped tube

Abstract

The utility model provides a direct cooling type harmonica-shaped tube, which relates to the technical field of heat exchangers, and comprises a harmonica-shaped tube body, the harmonica-shaped tube body comprises a harmonica-shaped tube shell and a plurality of heat exchange fins, the harmonica-shaped tube shell is provided with a plurality of fin strips, the heat exchange fins are inserted on the fin strips in a sliding manner, a plurality of flow deflectors are hinged on the heat exchange fins, and the flow deflectors are connected with the harmonica-shaped tube shell. The lower ends of the flow deflectors obliquely extend outwards, the flow deflectors are T-shaped, each flow deflector comprises a hinge portion and a flow guide portion which are integrally formed, torsion springs are connected between the hinge portions and the heat exchange fins, a plurality of abutting blocks are arranged on the fin strips, the abutting blocks are in an arc shape, and the abutting blocks are arranged in the arc shape. The upper edge of the abutting block is flush with the front side face of the fin strip, and the rear side of the flow guide part is in lap joint with the abutting block. The inclined flow deflectors are arranged to guide cooling water, the flowing direction of the cooling water is changed, turbulent flow is increased, and the heat exchange efficiency of the cooling water and the heat exchange fins is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a direct-cooling harmonica pipe. Background Art

[0002] Direct cooling harmonica pipe belongs to a kind of stirring welding method of extruded profiles. It uses the internal cavity of the harmonica pipe as the cooling water channel. It has the advantages of low cost, light weight, high strength and high production efficiency. At present, the cooling water channel on the market is set as a smooth plane. The cooling water flows quickly through the cooling water channel, and the heat exchange efficiency between the cooling water channel and the cooling water channel is low, and the cooling effect is poor. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a direct-cooling harmonica pipe, which solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A direct-cooling harmonica tube comprises a harmonica tube body, wherein the harmonica tube body comprises a harmonica tube shell and a plurality of heat exchange fins, wherein the harmonica tube shell comprises an integrally formed harmonica tube side panel and a plurality of supporting ribs, a heat exchange cavity is arranged between two adjacent supporting ribs, a plurality of fin strips are arranged on the front and rear side walls of the heat exchange cavity, the heat exchange fins are slidably plugged into the fin strips, a limiting slide groove is arranged on the fin strips, and the heat exchange fins are slidably connected in the limiting slide groove.

[0008] Preferably, a plurality of guide vanes are hingedly connected to the heat exchange fins, and the lower ends of the guide vanes extend outwardly at an angle.

[0009] Preferably, the guide plate is arranged in a T-shape, and the guide plate includes an integrally formed hinge part and a guide part, a torsion spring is connected between the hinge part and the heat exchange fin, a fin groove is opened on the side wall of the heat exchange fin, the width of the guide part is greater than the width of the fin groove, and the guide part abuts against the front side of the fin groove.

[0010] Preferably, a plurality of abutment blocks are provided on the fin strip, and the abutment blocks are arranged in an arc shape, and the upper edges of the abutment blocks are kept flush with the front side surfaces of the fin strips, and the rear side of the guide portion overlaps the abutment blocks.

[0011] Preferably, the guide portion is configured to be wavy.

[0012] Preferably, a mounting groove is provided at the top of the fin strip, and a mounting block which matches the mounting groove in a concave-convex manner is provided at the top of the heat exchange fin, and the mounting block is connected in the mounting groove by bolts.

[0013] (III) Beneficial effects

[0014] The utility model provides a direct-cooling harmonica pipe, which has the following beneficial effects:

[0015] 1. In the utility model, the heat exchange fin is inserted into the limiting slide groove, and the guide part at the front end of the T-shaped guide plate abuts against the front end of the fin groove, so that the guide plate forms an initial tilt angle. As the heat exchange fin is inserted, the guide part will overlap the abutment block and tilt outward at an inclined angle, which has a disturbing effect on the cooling water and improves the heat exchange efficiency between the cooling water and the heat exchange fin. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a direct-cooling harmonica pipe of the utility model;

[0017] Figure 2 It is a cross-sectional view of a direct-cooling harmonica pipe of the utility model;

[0018] Figure 3 for Figure 2 A partial enlarged view of the middle part;

[0019] Figure 4 It is a schematic diagram of the structure of the harmonica tube shell in the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the heat exchange fins in the utility model.

[0021] In the figure: 1. harmonica tube shell; 2. heat exchange fins; 3. fin strips; 4. mounting block; 5. guide plate; 51. hinge part; 52. guide part; 6. fin groove; 7. abutment block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] The utility model embodiment provides a direct cooling harmonica pipe.

[0024] like Figure 1-5As shown, it includes a harmonica tube body, the harmonica tube body includes a harmonica tube shell 1 and a plurality of heat exchange fins 2, the harmonica tube shell 1 includes an integrally formed harmonica tube side panel and a plurality of supporting ribs, a heat exchange cavity is set between two adjacent supporting ribs, a plurality of fin strips 3 are set on the front and rear side walls of the heat exchange cavity, the heat exchange fins 2 are slidably plugged on the fin strips 3, the fin strips 3 are provided with limited position slides, the heat exchange fins 2 are slidably connected in the limited position slides, the top of the fin strips 3 is provided with a mounting groove, the top of the heat exchange fins 2 is provided with a mounting block 4 that matches the mounting groove, the mounting block 4 is connected in the mounting groove by bolts, and the heat exchange fins 2 are hinged with A plurality of guide vanes 5 are provided, wherein the guide vanes 5 are arranged in a T-shape, and the lower end of the guide vanes 5 extends outwardly at an angle, and the guide vanes 5 include an integrally formed hinge portion 51 and a guide portion 52, wherein the guide portion 52 is arranged in a wave shape, and a torsion spring is connected between the hinge portion 51 and the heat exchange fin 2, and a fin groove 6 is provided on the side wall of the heat exchange fin 2, and the width of the guide portion 52 is greater than the width of the fin groove 6, and the guide portion 52 abuts against the front side of the fin groove 6, and a plurality of abutment blocks 7 are provided on the fin strip 3, and the abutment blocks 7 are arranged in an arc shape, and the upper edge of the abutment block 7 is kept flush with the front side of the fin strip 3, and the rear side of the guide portion 52 overlaps the abutment block 7.

[0025] Working principle:

[0026] In the utility model, the heat exchange fin 2 is inserted into the harmonica tube shell 1 through a limiting slot. The guide portion 52 of the hinged guide plate 5 on the heat exchange fin 2 is larger than the width of the fin slot 6. The guide portion 52 will overlap the front end of the fin slot 6 to form an initial inclination angle. As the heat exchange fin 2 is inserted, the initially inclined guide plate 5 will gradually overlap the abutment block 7 and gradually increase the inclination angle to form an inclined turbulent structure. The cooling water flowing through the guide plate will change the flow direction along the inclination angle of the guide plate 5, and will impact the vertically flowing cooling water that has not passed the guide plate position to form a turbulent flow, thereby increasing the contact time between the cooling water and the heat exchange fin 2 and improving the heat exchange efficiency between the heat exchange fin 2 and the cooling water.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A direct-cooling harmonica pipe, comprising a harmonica pipe body, characterized in that: The harmonica tube body includes a harmonica tube shell and a plurality of heat exchange fins, the harmonica tube shell includes an integrally formed harmonica tube side panel and a plurality of support ribs, a heat exchange cavity is arranged between two adjacent support ribs, a plurality of fin strips are arranged on the front and rear side walls of the heat exchange cavity, the heat exchange fins are slidably plugged into the fin strips, a limiting slide groove is arranged on the fin strips, and the heat exchange fins are slidably connected in the limiting slide groove.

2. A direct-cooling harmonica pipe according to claim 1, characterized in that: A plurality of guide vanes are hingedly connected to the heat exchange fins, and the lower ends of the guide vanes extend outwardly at an angle.

3. A direct-cooling harmonica pipe according to claim 2, characterized in that: The guide plate is arranged in a T-shape, and the guide plate includes an integrally formed hinge part and a guide part. A torsion spring is connected between the hinge part and the heat exchange fin. A fin groove is opened on the side wall of the heat exchange fin. The width of the guide part is greater than the width of the fin groove, and the guide part abuts against the front side of the fin groove.

4. A direct-cooling harmonica pipe according to claim 3, characterized in that: A plurality of abutment blocks are arranged on the fin strips. The abutment blocks are arranged in an arc shape. The upper edges of the abutment blocks are kept flush with the front side surfaces of the fin strips. The rear side of the guide portion overlaps the abutment blocks.

5. A direct-cooling harmonica pipe according to claim 4, characterized in that: The guide portion is configured to be wave-shaped.

6. A direct-cooling harmonica pipe according to claim 5, characterized in that: The top of the fin strip is provided with a mounting groove, and the top of the heat exchange fin is provided with a mounting block which matches the mounting groove in a concave-convex manner, and the mounting block is connected in the mounting groove by bolts.

Images