CN216645040U

CN216645040U - Novel fin structure of tube type heat exchanger

Info

Publication number: CN216645040U
Application number: CN202123096654.3U
Authority: CN
Inventors: 戎恒军; 李安
Original assignee: Wuxi Quan Bang Energy Technology Co ltd
Current assignee: Wuxi Quan Bang Energy Technology Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-05-31
Anticipated expiration: 2031-12-10

Abstract

The utility model discloses a novel fin structure of a tube type heat exchanger, which comprises a substrate, wherein a plurality of heat exchange tube holes are arranged in a rectangular array on the substrate, a plurality of turnover pieces are annularly arranged on the peripheral sides of the heat exchange tube holes, turnover holes are arranged on one sides of the turnover pieces close to the heat exchange tube holes, flow guide holes are arranged on one sides of the turnover pieces far away from the heat exchange tube holes, and extension lines towards the orifices of the flow guide holes are intersected with the turnover pieces. The turnover piece inclines towards the side where the turnover hole is located, and the direction of the opening of the flow guide hole inclines towards the side where the turnover piece is located. The cross section of the flow guide hole on the substrate is arc-shaped, the turnover piece is formed by combining a rectangle at the lower end and a semicircle at the upper end, and the shape of the turnover hole is the same as that of the turnover piece. The surface of one side of the turnover piece facing the turnover hole is provided with a plurality of flow disturbing grooves with triangular sections, and the depth of each flow disturbing groove is gradually reduced from the bottom end of each turnover piece to the top end of each turnover piece. The utility model has good heat transfer effect and can improve the heat exchange efficiency of the heat exchanger.

Description

Novel fin structure of tube type heat exchanger

Technical Field

The utility model relates to the technical field of heat exchangers, in particular to a novel fin structure of a tube type heat exchanger.

Background

The shell-and-tube heat exchanger mainly comprises a shell, a tube plate, a heat exchange tube, an end socket, a baffle plate and the like, wherein when heat exchange is carried out, a fluid enters from a connecting tube of the end socket, flows in the tube and flows out from an outlet tube at the other end of the end socket, and the tube pass is called; the other fluid enters from a connecting pipe of the shell and flows out from the other connecting pipe on the shell, and the other fluid is called shell side. In order to improve the heat exchange efficiency of the heat exchange tube, the heat exchange tube is sleeved with fins, through holes for accommodating the heat exchange tube and heat dissipation holes for accommodating shell pass media to pass through are generally machined in the conventional fins, the structure is simple, the heat dissipation effect is poor, and improvement is needed.

Disclosure of Invention

The purpose of the utility model is as follows: in order to overcome the defects in the prior art, the utility model provides a novel fin structure of a tube type heat exchanger, which has good heat transfer effect and can improve the heat exchange efficiency of the heat exchanger.

The technical scheme is as follows: in order to achieve the purpose, the novel fin structure of the tube type heat exchanger comprises a substrate, wherein a plurality of heat exchange tube holes are formed in a rectangular array on the substrate, a plurality of turnover pieces are annularly arranged on the peripheral sides of the heat exchange tube holes, turnover holes are formed in one sides, close to the heat exchange tube holes, of the turnover pieces, guide holes are formed in one sides, far away from the heat exchange tube holes, of the turnover pieces, and extending lines, facing the orifices of the guide holes, are intersected with the turnover pieces.

Further, the turnover pieces incline towards the side where the turnover holes are located, and the opening direction of the flow guide holes inclines towards the side where the turnover pieces are located.

Furthermore, the cross section of the flow guide hole on the substrate is arc-shaped, the turnover piece is formed by combining a rectangle at the lower end and a semicircle at the upper end, and the shape of the turnover hole is the same as that of the turnover piece.

Furthermore, a plurality of flow disturbing grooves with triangular sections are arranged on the surface of one side, facing the folding hole, of the folding piece, and the depth of each flow disturbing groove is gradually reduced from the bottom end of the corresponding folding piece to the top end of the corresponding folding piece.

Furthermore, four turnover pieces are circumferentially arranged at equal angles on the peripheral side of a single heat exchange pipe hole, and the four turnover pieces on the peripheral side of the single heat exchange pipe hole are respectively positioned in the directions of 45 degrees, 135 degrees, 225 degrees and 315 degrees of the heat exchange pipe hole.

Furthermore, a cross hole is arranged between the adjacent heat exchange tube holes.

Has the advantages that: according to the novel fin structure of the tube type heat exchanger, the four inclined turnover pieces are arranged on the periphery of the heat exchange tube hole, the two sides of each turnover piece are respectively provided with the guide hole and the turnover hole, shell pass media passing through the guide hole and the turnover hole can generate an impact effect with the turnover pieces to disturb the shell pass media and enhance the heat exchange effect, and one side of each turnover piece is also provided with the turbulent flow groove, so that the heat exchange area can be increased, and the heat exchange efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the substrate on the side facing the outlet end of the shell-side medium;

FIG. 2 is a schematic structural view of the substrate on the side facing the shell-side media inlet end;

fig. 3 is a schematic structural view of the folding sheet, the folding hole and the flow guide hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 to 3 a novel fin structure of shell and tube heat exchanger, including substrate 1, rectangular array is provided with a plurality of heat transfer tube holes 2 on the substrate 1, and the heat exchange tube passes from heat transfer tube hole 2, week side annular arrangement of heat transfer tube hole 2 is provided with a plurality of turns over tabs 3, turns over tabs 3 and substrate 1 and is certain angle slope, it is close to turn over tabs 3 one side of heat transfer tube hole 2 is provided with turns over a hole 4, it keeps away from to turn over tabs 3 one side of heat transfer tube hole 2 is provided with water conservancy diversion hole 5, the extension line of 5 drill way orientations of water conservancy diversion hole with it is crossing to turn over tabs 3 for shell side medium produces the impact with a 3 after passing water conservancy diversion hole 5, forms the vortex effect, and then promotes the heat transfer effect of fin.

The turnover pieces 3 incline towards the side where the turnover holes 4 are located, and the included angle between the turnover pieces 3 and the substrate 1 is an acute angle; the direction of the orifice of the guide hole 5 inclines towards the side of the turnover piece 3, the included angle between the extending line of the orifice of the guide hole 5 and the substrate 1 is an acute angle, and the included angle between the guide hole 5 and the substrate is smaller than the included angle between the turnover piece 3 and the substrate 1, so as to ensure that the extending line of the orifice of the guide hole 5 intersects with the turnover piece 3.

The cross section of the flow guide holes 5 on the substrate 1 is arc-shaped, a plurality of flow guide holes 5 on the peripheral side of the heat exchange tube hole 2 surround the heat exchange tube hole 2 in a surrounding manner, and the flow guide holes 5 have the function of guiding a shell side medium and the heat exchange tube to generate impact. The folding pieces 3 are formed by combining a rectangle at the lower end and a semicircle at the upper end, and the shape of the folding holes 4 is the same as that of the folding pieces 3.

The turning piece 3 is provided with a plurality of turbulence grooves 6 with triangular sections on the surface of one side of the turning hole 4, the depth of the turbulence grooves 6 is gradually reduced from the bottom end of the turning piece 3 to the top end of the turning piece 3, the heat exchange area can be increased by the turbulence grooves 6, the heat exchange efficiency is improved, and the turbulence effect of the turning piece 3 on a shell-side medium passing through the turning hole 4 is better.

As shown in fig. 1 and 2, four turnover pieces 3 are circumferentially arranged at equal angles on the peripheral side of a single heat exchange tube hole 2, and the four turnover pieces 3 on the peripheral side of the single heat exchange tube hole 2 are respectively located in the directions of 45 degrees, 135 degrees, 225 degrees and 315 degrees of the heat exchange tube hole 2, so that the structural arrangement is more reasonable.

And a cross hole 7 is arranged between the adjacent heat exchange tube holes 2, so that the retardation of the fins on a shell pass medium is reduced.

The turnover pieces 3 on the substrate 1 are all arranged on one side of the substrate 1, when the heat exchanger works, one side of the substrate 1, which is provided with the turnover pieces 3, faces to the inlet end of the shell-side medium, and the shell-side medium passes through the flow guide holes 5 and the turnover holes 6 and then impacts the turnover pieces 3 to play a role of turbulence so as to improve the heat exchange efficiency.

The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model and these are intended to be within the scope of the utility model.

Claims

1. The utility model provides a novel fin structure of shell and tube heat exchanger which characterized in that: the heat exchange plate comprises a substrate (1), wherein a plurality of heat exchange tube holes (2) are arranged on the substrate (1) in a rectangular array mode, a plurality of turnover pieces (3) are arranged on the peripheral sides of the heat exchange tube holes (2) in an annular mode, turnover holes (4) are formed in one sides, close to the heat exchange tube holes (2), of the turnover pieces (3), flow guide holes (5) are formed in one sides, far away from the heat exchange tube holes (2), of the turnover pieces (3), and extension lines towards orifices of the flow guide holes (5) are intersected with the turnover pieces (3).

2. The novel fin structure of the tube type heat exchanger according to claim 1, wherein: the turnover piece (3) inclines towards the side where the turnover hole (4) is located, and the orifice direction of the guide hole (5) inclines towards the side where the turnover piece (3) is located.

3. The novel fin structure of the tube type heat exchanger according to claim 2, wherein: the cross section of the flow guide hole (5) on the substrate (1) is arc-shaped, the turnover piece (3) is formed by combining a rectangle at the lower end and a semicircle at the upper end, and the shape of the turnover hole (4) is the same as that of the turnover piece (3).

4. The novel fin structure of the tube type heat exchanger according to claim 3, wherein: a plurality of flow disturbing grooves (6) with triangular sections are arranged on the surface of one side, facing the folding hole (4), of the folding piece (3), and the depth of each flow disturbing groove (6) is gradually reduced from the bottom end of the folding piece (3) to the top end of the folding piece (3).

5. The novel fin structure of the tube type heat exchanger according to claim 4, wherein: four turnover pieces (3) are arranged on the circumferential side of the single heat exchange pipe hole (2) in an annular equal angle mode, and the four turnover pieces (3) on the circumferential side of the single heat exchange pipe hole (2) are respectively located in the directions of 45 degrees, 135 degrees, 225 degrees and 315 degrees of the heat exchange pipe hole (2).

6. The novel fin structure of the tube type heat exchanger according to claim 5, wherein: a cross hole (7) is arranged between the adjacent heat exchange tube holes (2).