Dense tooth type radiating tube of industrial heat exchanger

Abstract

The utility model provides a dense tooth type radiating tube of industrial heat exchanger relates to heat exchanger technical field, by folding and welding heat exchange plate body, the heat exchange plate comprises an integrated bending plate and two heat exchange side plates symmetrically arranged at the two ends of the bending plate, a plurality of heat exchange racks are arranged on the heat exchange side plates at intervals, and the heat exchange racks are arranged on the bending plate. Corresponding separating ribs are arranged on the two heat exchange side plates at intervals, clamping protruding strips and clamping grooves which are matched in a concave-convex mode are arranged on the separating ribs on the two sides, bending parts are arranged at the ends of the clamping protruding strips and the clamping grooves of the heat exchange side plates, welding inclined planes are arranged on the outer sides of the bending parts, the two welding inclined planes are in butt joint to form a welding groove, and the welding grooves are connected with the clamping protruding strips and the clamping grooves in a butt joint mode. And a welding strip is fixed in the welding groove. According to the utility model, the dense-tooth radiating tube is arranged to be of a plate-shaped structure which is easier to extrude and form, so that the conditions of distortion, rippled edges or local thinning caused by excessive concentration of extrusion stress are avoided.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a fine-toothed heat dissipation tube for an industrial heat exchanger. Background Technology

[0002] As core equipment in energy, chemical, and power industries, industrial heat exchangers directly affect system energy efficiency and carbon emissions. The fine-toothed heat exchange tube achieves a step-by-step improvement in heat transfer performance within a single tube through microstructure integrated design.

[0003] High-density toothed heat exchange flat tubes typically refer to flat heat exchange tubes with dense, tiny toothed structures. Due to the thinness of the heat exchange flat tube wall and the high density of the teeth, the metal flow resistance is too concentrated during the extrusion molding process, which can easily lead to twisting, wavy edges, or local thinning. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a fine-toothed heat dissipation tube for industrial heat exchangers, which solves the problems mentioned in the background section.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An industrial heat exchanger with closely spaced finned heat dissipation tube is formed by folding and welding a heat exchange plate body. The heat exchange plate includes an integrally formed bent plate and two heat exchange side plates symmetrically arranged at both ends of the bent plate. Several heat exchange fins are spaced apart on the heat exchange side plates. A bent portion is provided at the end of the heat exchange side plate. A welding bevel is provided on the outer side of the bent portion. Two welding bevels are joined together to form a welding groove. A welding strip is fixed in the welding groove.

[0009] Preferably, the two heat exchange side plates are provided with corresponding partition ribs at intervals, and the partition ribs on both sides are connected and fastened to each other.

[0010] Preferably, a snap-fit ​​protrusion is provided on one side of the partition rib, the snap-fit ​​protrusion being located on the side of the partition rib closer to the bending plate, and a snap-fit ​​groove is provided on the other side of the partition rib, the snap-fit ​​groove being located on the side of the partition rib away from the bending plate, and the snap-fit ​​protrusion and snap-fit ​​groove engaging in a concave-convex fit.

[0011] Preferably, the partition rib has a fastening opening, the depth of which is half the thickness of the partition rib, and the snap-fit ​​protrusion and snap-fit ​​groove are provided on the side wall of the fastening opening.

[0012] Preferably, the top of the partition rib is provided with an abutting slope, and the lower side of the fastening opening is provided with a positioning slope that convexly and concavely engages with the abutting slope.

[0013] (III) Beneficial Effects

[0014] This invention provides a fine-toothed heat dissipation tube for an industrial heat exchanger. It has the following advantages:

[0015] 1. In this utility model, the dense toothed heat dissipation tube is unfolded into a symmetrical plate-like structure, which can disperse the metal flow resistance during the extrusion molding process, making it easier to extrude and form. Then, it is bent and welded to form a dense toothed heat dissipation tube, which effectively avoids the situation of twisting, wavy edges or local thinning of the dense toothed heat dissipation tube.

[0016] 2. In this utility model, the snap-fit ​​protrusions and snap-fit ​​grooves on the partition ribs snap together, and the direction of the snap-fit ​​force is opposite to the direction of the stress required for the bending part to open. This evenly distributes the opening pressure, which can effectively prevent the weld strip from being pulled apart by the pressure of the closely spaced heat sink tube, thus avoiding the possibility of leakage due to weld gaps and ensuring the strength of the closely spaced heat sink tube. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the heat exchange plate body in this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the heat exchange plate body bent and welded into a heat dissipation pipe in this utility model.

[0019] In the figure: 1. Heat exchange plate body; 101. Bending plate; 102. Heat exchange side plate; 2. Heat exchange rack; 3. Bending part; 4. Welding strip; 5. Separating rib; 6. Abutting slope; 7. Snap-fitting protrusion; 8. Snap-fitting groove. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model embodiment provides a fine-toothed heat dissipation tube for an industrial heat exchanger, such as... Figure 1-2 As shown, the heat exchange plate body 1 is formed by folding and welding. The heat exchange plate body 1 includes an integrally formed bent plate 101 and two heat exchange side plates 102 symmetrically arranged at both ends of the bent plate 101. Several heat exchange toothed racks 2 are spaced apart on the heat exchange side plates 102, and the several heat exchange toothed racks 2 together form a dense toothed structure. The ends of the heat exchange side plates 102 are provided with bending portions 3 for welding. The outer side of the bending portion 3 is provided with welding bevels. Two welding bevels are joined together to form a welding groove. Welding strips 4 are fixed in the welding groove. The two ends of the heat exchange plate body 1 are folded and bent to form a dense toothed heat dissipation pipe and welded and fixed by the welding strips 4.

[0022] Two heat exchange side plates 102 are provided with corresponding partition ribs 5 at intervals. Each partition rib 5 has a snap-fit ​​opening with a depth half the thickness of the partition rib 5. A contact slope 6 is provided at the top of each partition rib 5, and a positioning slope that mates with the contact slope 6 is provided below the snap-fit ​​opening. The snap-fit ​​openings on both sides interlock to form a composite plate with the same thickness as the partition rib 5 and a smooth surface. A snap-fit ​​protrusion 7 is provided on one side of the partition rib 5. The snap-fit ​​protrusion 7 is positioned near the partition rib 5. On one side of the bending plate 101, a snap-fit ​​groove 8 is provided on the other side of the partition rib 5. The snap-fit ​​groove 8 is opened on the side of the partition rib 5 away from the bending plate 101. The snap-fit ​​protrusion 7 and the snap-fit ​​groove 8 are in concave-convex fit. After the heat exchange plate body 1 is bent, the snap-fit ​​protrusion 7 slides into the snap-fit ​​groove 8 to form a lock. The direction of mutual locking is opposite to the direction of the bending plate 101 opening under the internal pressure of the toothed heat exchange tube. They share the internal pressure of the toothed heat exchange tube, avoid the welding strip 4 from being broken by the internal pressure, and ensure the structural strength of the toothed heat exchange tube.

[0023] Working principle:

[0024] In this invention, by setting the integral extruded thin high-density toothed heat exchange flat tube as a plate structure, the several heat exchange teeth 2 that are too concentrated inside the thin high-density toothed heat exchange flat tube are dispersed, and the extrusion pressure is dispersed, so as to avoid the situation of heat dissipation tube twisting, wavy edge or local thinning caused by excessive extrusion stress concentration.

[0025] In this utility model, during the bending and joining process of the heat exchange plate body 1, the lower heat exchange side plate 102 is used as the reference, and the upper heat exchange side plate 102 can be approximately regarded as a rotation process with the bending plate 101 as the center. During the rotation, the contacting inclined surfaces 6 of the upper and lower separating ribs 5 come into contact with each other and slide. The separating ribs 5 elastically deform until the bent parts 3 of the heat exchange side plate 102 are joined together. The two welding inclined surfaces are joined together to form a welding groove. At the same time, the snap-fit ​​protrusion 7 slides into the snap-fit ​​groove 8 to form a snap-fit. The two heat exchange side plates 102 can be joined and fixed into a high-density toothed heat exchange flat tube by the welding strip 4 formed by welding.

[0026] In this invention, the internal pressure of the high-density toothed heat exchange flat tube generates a thrust that causes the heat exchange side plate 102 to open, i.e., the upper heat exchange side plate 102 tends to rotate. The direction of this rotational tendency is opposite to the snapping direction formed by the snapping protrusion 7 and the snapping groove 8. The greater the opening thrust, the more secure the snapping of the snapping protrusion 7 and the snapping groove 8. The partition rib 5 can share the thrust that opens the heat exchange side plate 102, avoid stress concentration on the welding strip 4, prevent the welding strip 4 from breaking and causing leakage, improve the structural strength of the high-density toothed heat exchange flat tube, and ensure the stable operation of the heat exchange of the high-density toothed heat exchange flat tube.

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

Claims

1. A fine-toothed heat dissipation tube for an industrial heat exchanger, formed by folding and welding a heat exchange plate body, characterized in that: The heat exchange plate includes an integrally formed bent plate and two heat exchange side plates symmetrically arranged at both ends of the bent plate. Several heat exchange racks are spaced apart on the heat exchange side plates. The ends of the heat exchange side plates are provided with bent portions. Welding bevels are provided on the outer side of the bent portions. Two welding bevels are joined together to form a welding groove. Welding strips are fixed in the welding groove.

2. The fine-toothed heat dissipation tube for an industrial heat exchanger according to claim 1, characterized in that: The two heat exchange side plates are provided with corresponding partition ribs at intervals, and the partition ribs on both sides are connected and fastened to each other.

3. The fine-toothed heat dissipation tube for an industrial heat exchanger according to claim 2, characterized in that: A snap-fit ​​protrusion is provided on one side of the partition rib, and the snap-fit ​​protrusion is located on the side of the partition rib close to the bending plate. A snap-fit ​​groove is provided on the other side of the partition rib, and the snap-fit ​​protrusion and the snap-fit ​​groove are in concave-convex fit.

4. The fine-toothed heat dissipation tube for an industrial heat exchanger according to claim 3, characterized in that: The partition rib has a snap-fit ​​opening, the depth of which is half the thickness of the partition rib, and the snap-fit ​​protrusion and snap-fit ​​groove are provided on the side wall of the snap-fit ​​opening.

5. The fine-toothed heat dissipation tube for an industrial heat exchanger according to claim 4, characterized in that: The top of the partition rib is provided with an abutting slope, and the lower side of the fastening opening is provided with a positioning slope that mates with the abutting slope.

Images