CN219390610U - Heat exchange tube and heat exchange device - Google Patents

Abstract

The utility model provides a heat exchange tube and a heat exchange device, comprising: the heat exchange tube body comprises an upper shell and a lower shell, the upper shell is connected and arranged on the lower shell, and a heat exchange channel is formed between the upper shell and the lower shell; one end of the upper shell is integrally connected with one end of the lower shell, and the other end of the upper shell is connected with the other end of the lower shell by laser welding; the upper shell is provided with a plurality of first outer cavities and a plurality of first inner cavities, and the lower shell is provided with a plurality of second outer cavities and a plurality of second inner cavities; the first inner cavity is abutted with the second inner cavity, and the first inner cavity and the second inner cavity are both positioned in the heat exchange channel. The heat exchange tube can exchange heat of liquid in the heat exchange channel more fully, has good heat exchange effect, is integrally formed, can form a single heat exchange tube through rolling, doubling and laser welding, and overcomes the defect that the welding seam of the original process is easy to leak.

Description

Heat exchange tube and heat exchange device

Technical Field

The utility model relates to the technical field of rolled profiles, in particular to a heat exchange tube and a heat exchange device.

Background

At present, the key component heat exchanger of the domestic high-end cooling equipment is a plate type or a tube type, and the plate type heat exchanger is mainly made of high-quality corrosion-resistant steel, for example: stainless steel plates (304,316,2205 and other stainless steel), titanium metal and the like are subjected to sheet metal stamping forming, and then the two plates are subjected to splice welding to form the heat exchange cavity. The tube heat exchanger is a heat exchange cavity formed by combining stainless steel round tubes or threaded round tubes and the like.

The plate type heat exchanger has the advantages that the plate is limited by the capability of stamping forming equipment, the capability of splice welding equipment and the like, the size specification is small, the splice welding efficiency is low, the plate type heat exchanger is mainly applied to small and medium-sized heat exchanger equipment, meanwhile, the working procedure is long, the efficiency is low, the welding quality is poor, even welding defects exist, and a plurality of problems such as leakage exist in the heat exchange and cooling process of equipment.

The tube bundle heat exchanger has the advantages that the characteristics of the inner cavities in the tube bundles are few, the inner surface area is small, the heat exchange effect is poor when liquid flows in the heat exchange cavity, and meanwhile, in order to improve the heat exchange efficiency, small-caliber round tubes are adopted, materials are more, and assembly and disassembly are difficult.

Disclosure of Invention

In view of the defects in the prior art, the utility model aims to provide a heat exchange tube and a heat exchange device.

According to the present utility model there is provided a heat exchange tube comprising: the heat exchange tube comprises a heat exchange tube body, wherein the heat exchange tube body comprises an upper shell and a lower shell, the upper shell is connected and arranged on the lower shell, and a heat exchange channel is formed between the upper shell and the lower shell;

one end of the upper shell is integrally connected with one end of the lower shell, and the other end of the upper shell is connected with the other end of the lower shell by laser welding;

the upper shell is provided with a plurality of first outer cavities and a plurality of first inner cavities, and the lower shell is provided with a plurality of second outer cavities and a plurality of second inner cavities;

the first inner cavity is abutted with the second inner cavity, and the first inner cavity and the second inner cavity are both positioned in the heat exchange channel.

Preferably, the first outer cavities and the second outer cavities are arranged in one-to-one correspondence, and the first inner cavities and the second inner cavities are arranged in one-to-one correspondence.

Preferably, a first outer convex hull structure is arranged on the upper shell, a second outer convex hull structure is arranged on the lower shell, and the first outer convex hull structure and the second outer convex hull structure are correspondingly arranged;

the first outer convex hull structure divides the upper shell into a plurality of first cavity areas, and the first cavity areas comprise a plurality of first outer cavities and a plurality of first inner cavities;

the second outer convex hull structure divides the lower housing into a plurality of second cavity regions including a plurality of the second outer cavities and a plurality of the second inner cavities.

Preferably, the first cavity area includes a plurality of first outer cavity areas and a plurality of first inner cavity areas, and the plurality of first outer cavity areas and the plurality of first inner cavity areas are staggered;

the first outer cavity region comprises a plurality of the first outer cavities, and the first inner cavity region comprises a plurality of the first inner cavities;

the second cavity area comprises a plurality of second outer cavity areas and a plurality of second inner cavity areas, and the second outer cavity areas and the second inner cavity areas are staggered;

the second outer cavity region includes a plurality of the second outer cavities, the second inner cavity region includes a plurality of the second inner cavities;

the first outer cavity region is disposed corresponding to the second outer cavity region, and the first inner cavity region is disposed corresponding to the second inner cavity region.

Preferably, the first outer cavity area and the first inner cavity area are uniformly spaced; the plurality of first outer cavities of the first outer cavity area are uniformly arranged at intervals, and the plurality of first inner cavities of the first inner cavity area are uniformly arranged at intervals;

the second outer cavity area and the second inner cavity area are uniformly arranged at intervals; the plurality of second outer cavities of the second outer cavity area are uniformly arranged at intervals, and the plurality of second inner cavities of the second inner cavity area are uniformly arranged at intervals.

Preferably, the first outer cavity, the first inner cavity, the second outer cavity and the second inner cavity are all arranged in a strip shape.

Preferably, the length direction of the heat exchange tube body is taken as a positive direction, the first outer cavity and the first inner cavity are respectively arranged in an inclined mode in different directions, and the second outer cavity and the second inner cavity are respectively arranged in an inclined mode in different directions.

Preferably, the first outer cavity, the first inner cavity, the second outer cavity and the second inner cavity are all inclined by 45 degrees.

The utility model also provides a heat exchange device comprising the heat exchange tube.

Preferably, the heat exchange tube comprises a plurality of heat exchange tubes, and the plurality of heat exchange tubes are arranged in a superposition way; adjacent heat exchange tubes are abutted through the first outer cavity and the second outer cavity;

the device also comprises a first fixing plate and a second fixing plate;

the two ends of the heat exchange tube are respectively fixed on the first fixing plate and the second fixing plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the utility model, the contact area with heat exchange liquid is increased and the heat exchange effect is improved through the first outer cavity, the second outer cavity, the first outer convex hull structure and the second outer convex hull structure, the first inner cavity and the second inner cavity are arranged in the heat exchange channel in an abutting manner, the heat exchange contact area is increased, meanwhile, the liquid in the heat exchange channel can be continuously split, high-intensity turbulence is generated, the heat transfer coefficient is greatly improved, and meanwhile, the convex hull structure improves the integral rigidity of the pipe body;

2. the heat exchange tube is integrally formed, and the single heat exchange tube can be formed through stamping forming, rolling, folding and laser welding, so that the problem that the welding seam of the original plate type butt welding process is easy to leak is solved, the length size of the heat exchange tube is not limited, and the defect that the plate type heat exchanger can only be applied to medium and small heat exchange equipment is overcome;

3. the novel heat exchange tube is an integral rolling forming heat exchange tube, and solves the problems of incapability of integral forming, low production efficiency, poor product quality, high investment cost and the like of the traditional plate type heat exchanger;

4. the structure of the heat exchange tube can realize integral rolling forming preparation, laser welding connection and high welding quality, overcomes the defect that the welding seam of the original process is easy to leak, improves the production efficiency by more than 150 percent compared with the original process, can realize 13 meters of maximum length specification, and breaks through the bottleneck of the traditional process technology.

Drawings

Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which:

FIG. 1 is a schematic perspective view of a heat exchange tube of the present utility model;

FIG. 2 is an end schematic view of a heat exchange tube of the present utility model;

FIG. 3 is a cross-sectional view highlighting the convex hull structure of the heat exchange tube;

FIG. 4 is a cross-sectional view highlighting the interior of a heat exchange tube;

fig. 5 is a schematic perspective view of a heat exchange device according to the present utility model;

fig. 6 is a cross-sectional view of the heat exchange device of the present utility model.

The figure shows:

the heat exchange tube body 1 second inner cavity 1022

Second outer convex hull structure 1023 of upper housing 101

First outer cavity 1011 first outer cavity region 2

First inner cavity 1012 first inner cavity region 3

First convex hull construction 1013 heat exchange tube 4

First fixing plate 5 of lower housing 102

Second outer chamber 1021 second fixing plate 6

Detailed Description

The present utility model will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the present utility model, but are not intended to limit the utility model in any way. It should be noted that variations and modifications could be made by those skilled in the art without departing from the inventive concept. These are all within the scope of the present utility model.

Example 1:

as shown in fig. 1 to 6, the present embodiment provides a heat exchange tube comprising: the heat exchange tube body 1, heat exchange tube body 1 includes casing 101 and lower casing 102, go up casing 101 connection setting on casing 102 down, form the heat exchange passageway between casing 101 and the casing 102 down, go up casing 101's one end and the one end integrated into one piece of casing 102 down are connected, go up casing 101's the other end and the other end laser welding connection of casing 102 down, be provided with a plurality of first outer cavitys 1011 and a plurality of first inner cavity 1012 on the casing 101 down, be provided with a plurality of second outer cavity 1021 and a plurality of second inner cavity 1022 on the casing 102 down, first inner cavity 1012 and second inner cavity 1022 looks butt, first inner cavity 1012 and second inner cavity 1022 all are located the heat exchange passageway. The heat exchange tube body 1 is made of corrosion resistant steel, in this embodiment, the heat exchange tube body 1 is made of stainless steel, and the whole heat exchange tube body 1 is rectangular.

The first outer cavity 1011, the first inner cavity 1012, the second outer cavity 1021, and the second inner cavity 1022 are all disposed in a long-bar shape. The first outer cavity 1011 and the second outer cavity 1021 are disposed in one-to-one correspondence, and the first inner cavity 1012 and the second inner cavity 1022 are disposed in one-to-one correspondence.

The upper shell 101 is provided with a first outer convex hull structure 1013, the lower shell 102 is provided with a second outer convex hull structure 1023, and the first outer convex hull structure 1013 and the second outer convex hull structure 1023 are correspondingly arranged. The first outer convex hull structure 1013 and the second outer convex hull structure 1023 are both arranged in a long strip shape, the first outer convex hull structure 1013 and the second outer convex hull structure 1023 are arranged perpendicular to the length direction of the heat exchange tube body 1, as shown in fig. 1, the length direction of the heat exchange tube body 1 is the Y-axis direction, and the first outer convex hull structure 1013 and the second outer convex hull structure 1023 are arranged in the X-axis direction.

The first convex hull structure 1013 divides the upper housing 101 into a plurality of first cavity regions including a plurality of first outer cavities 1011 and a plurality of first inner cavities 1012. The second outer convex hull structure 1023 divides the lower shell 102 into a plurality of second cavity regions including a plurality of second outer cavities 1021 and a plurality of second inner cavities 1022. As shown in fig. 1, in the present embodiment, 1 first protruding packing structure 1013 is provided, and the first protruding packing structure 1013 divides the upper case 101 into two first cavity areas in the figure, and in other embodiments, the first protruding packing structure 1013 may be provided in plurality, and divides the upper case 101 into more cavity areas.

The first cavity region includes a plurality of first outer cavity regions 2 and a plurality of first inner cavity regions 3, the plurality of first outer cavity regions 2 and the plurality of first inner cavity regions 3 are staggered, the first outer cavity region 2 includes a plurality of first outer cavities 1011, and the first inner cavity region 3 includes a plurality of first inner cavities 1012. The plurality of first outer cavities 1011 are arranged in a row matrix, and the plurality of first inner cavities 1012 are arranged in a row matrix, as shown in fig. 1, in this embodiment, the first cavity regions include eight first outer cavity regions 2 and nine first inner cavity regions 3, each first outer cavity region 2 is composed of six first outer cavities 1011 arranged in rows at intervals, and each first inner cavity region 3 is composed of six first inner cavities 1012 arranged in rows at intervals.

The second cavity area comprises a plurality of second outer cavity areas and a plurality of second inner cavity areas, the plurality of second outer cavity areas and the plurality of second inner cavity areas are arranged in an intersecting staggered mode, the second outer cavity area comprises a plurality of second outer cavities 1021, the second inner cavity area comprises a plurality of second inner cavities 1022, the first outer cavity area 2 is correspondingly arranged with the second outer cavity area, and the first inner cavity area 3 is correspondingly arranged with the second inner cavity area.

The first outer cavity region 2 and the first inner cavity region 3 are disposed at uniform intervals, the plurality of first outer cavities 1011 of the first outer cavity region 2 are disposed at uniform intervals, and the plurality of first inner cavities 1012 of the first inner cavity region 3 are disposed at uniform intervals.

The second outer cavity area and the second inner cavity area are uniformly arranged at intervals; the plurality of second outer cavities 1021 of the second outer cavity region are disposed at uniform intervals, and the plurality of second inner cavities 1022 of the second inner cavity region are disposed at uniform intervals.

With the longitudinal direction of the heat exchange tube body 1 as the positive direction, the first outer cavity 1011 and the first inner cavity 1012 are inclined in different directions, and the second outer cavity 1021 and the second inner cavity 1022 are inclined in different directions, respectively, in this embodiment, the first outer cavity 1011, the first inner cavity 1012, the second outer cavity 1021, and the second inner cavity 1022 are all inclined by 45 degrees. As shown in fig. 1, the length direction of the heat exchange tube body 1 is the Y-axis direction, the elongated first outer cavity 1011 is disposed in the positive direction when disposed in the Y-axis direction, the first outer cavity 1011 in fig. 1 is disposed obliquely, and an angle is formed between the length direction of the first outer cavity 1011 and the Y-axis direction.

The present embodiment also provides a heat exchange device comprising the heat exchange tube 4 described above. In this embodiment, the heat exchange device includes a plurality of heat exchange tubes 4, the plurality of heat exchange tubes 4 are stacked, adjacent heat exchange tubes 4 are abutted through a first outer cavity 1011 and a second outer cavity 1021, the heat exchange device further includes a first fixing plate 5 and a second fixing plate 6, and both ends of the heat exchange tubes are respectively fixed on the first fixing plate 5 and the second fixing plate 6. As shown in fig. 6, the second outer chamber 1021 of the heat exchanging tube 4 located above abuts against the first outer chamber 1011 of the heat exchanging tube 4 located below.

The heat exchange tube of this embodiment is an integral roll-formed corrosion-resistant steel heat exchange tube, and is made of corrosion-resistant steel, and the heat exchange tube and the heat exchange device of this embodiment can be prepared by the following processes:

the continuous stamping forming die and the high-precision feeding mechanism are used for continuous stamping forming on the steel belt, so that the surface of the steel belt is distributed with a convex cavity, a concave cavity and a convex hull structure, the convex cavity, the concave cavity and the steel belt are in an angle, the long convex hull structure is distributed perpendicular to the length direction of the steel belt and is discontinuously distributed, the two sides of the center line of the steel belt are symmetrically distributed (after the subsequent rolling forming and folding, the convex cavity, the concave cavity and the inner convex hull structure can be mutually contacted, the convex cavity and the concave cavity form an outer cavity and an inner cavity on the heat exchange tube at the moment), then the steel belt with the convex hull formed is rolled and bent through the customized rolling die, finally, a tube body is formed by adopting laser welding, the inner convex cavity, the concave cavity and the inner convex hull structure are mutually abutted, a certain strength and rigidity can be formed, the deformation of the tube body in use can be prevented, meanwhile, the formation of the convex hull structure can increase the surface area of the tube body, the tube body is easier to cool in the subsequent heat exchange process, and the cooling efficiency is higher;

the pipe body is finally cut off at the strip-shaped convex hull structure, the pipe body is divided into two parts, the strip-shaped convex hull exists at the end part of the pipe body, at the moment, the pipe body becomes a single heat exchange pipe, after a plurality of heat exchange pipes are combined in the subsequent use, the end part of the pipe body is sealed after the plurality of heat exchange pipes are fixedly connected with a fixing plate which is profiled with the outer wrapping of the heat exchange pipes at the position of the strip-shaped convex hull structure of the end part, and at the moment, the plurality of combined heat exchange pipes form a whole.

The heat exchange tube can exchange heat of liquid in the heat exchange channel more fully, has good heat exchange effect, is integrally formed, can form a single heat exchange tube through rolling, doubling and laser welding, and overcomes the defect that the welding seam of the original process is easy to leak.

In the description of the present application, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and are not to be construed as limiting the present application.

The foregoing describes specific embodiments of the present utility model. It is to be understood that the utility model is not limited to the particular embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without affecting the spirit of the utility model. The embodiments of the present application and features in the embodiments may be combined with each other arbitrarily without conflict.

Claims (10)

1. A heat exchange tube, comprising: the heat exchange tube comprises a heat exchange tube body (1), wherein the heat exchange tube body (1) comprises an upper shell (101) and a lower shell (102), the upper shell (101) is connected and arranged on the lower shell (102), and a heat exchange channel is formed between the upper shell (101) and the lower shell (102);

one end of the upper shell (101) is integrally connected with one end of the lower shell (102), and the other end of the upper shell (101) is connected with the other end of the lower shell (102) through laser welding;

a plurality of first outer cavities (1011) and a plurality of first inner cavities (1012) are arranged on the upper shell (101), and a plurality of second outer cavities (1021) and a plurality of second inner cavities (1022) are arranged on the lower shell (102);

the first inner cavity (1012) and the second inner cavity (1022) are abutted, and the first inner cavity (1012) and the second inner cavity (1022) are both positioned in the heat exchange channel.

2. The heat exchange tube according to claim 1, wherein the first outer cavities (1011) and the second outer cavities (1021) are provided in one-to-one correspondence, and the first inner cavities (1012) and the second inner cavities (1022) are provided in one-to-one correspondence.

3. The heat exchange tube according to claim 2, wherein a first outer convex hull structure (1013) is provided on the upper shell (101), a second outer convex hull structure (1023) is provided on the lower shell (102), and the first outer convex hull structure (1013) and the second outer convex hull structure (1023) are provided correspondingly;

the first convex hull structure (1013) divides the upper housing (101) into a plurality of first cavity regions comprising a plurality of the first outer cavities (1011) and a plurality of the first inner cavities (1012);

the second outer convex hull structure (1023) separates the lower housing (102) into a plurality of second cavity regions including a plurality of the second outer cavities (1021) and a plurality of the second inner cavities (1022).

4. A heat exchange tube according to claim 3, wherein the first cavity region comprises a plurality of first outer cavity regions (2) and a plurality of first inner cavity regions (3), the plurality of first outer cavity regions (2) and the plurality of first inner cavity regions (3) being staggered;

-said first outer cavity region (2) comprises a plurality of said first outer cavities (1011), said first inner cavity region (3) comprises a plurality of said first inner cavities (1012);

the second cavity area comprises a plurality of second outer cavity areas and a plurality of second inner cavity areas, and the second outer cavity areas and the second inner cavity areas are staggered;

-said second outer cavity region comprising a plurality of said second outer cavities (1021), said second inner cavity region comprising a plurality of said second inner cavities (1022);

the first outer cavity area (2) is arranged corresponding to the second outer cavity area, and the first inner cavity area (3) is arranged corresponding to the second inner cavity area.

5. The heat exchange tube according to claim 4, wherein the first outer cavity region (2) and the first inner cavity region (3) are arranged at uniform intervals; a plurality of first outer cavities (1011) of the first outer cavity region (2) are uniformly spaced, and a plurality of first inner cavities (1012) of the first inner cavity region (3) are uniformly spaced;

the second outer cavity area and the second inner cavity area are uniformly arranged at intervals; a plurality of second outer cavities (1021) of the second outer cavity region are arranged at uniform intervals, and a plurality of second inner cavities (1022) of the second inner cavity region are arranged at uniform intervals.

6. The heat exchange tube according to claim 5, wherein the first outer chamber (1011), the first inner chamber (1012), the second outer chamber (1021), and the second inner chamber (1022) are each provided in a long strip shape.

7. The heat exchanging tube as recited in claim 6, wherein the first outer chamber (1011) and the first inner chamber (1012) are provided obliquely in different directions, respectively, and the second outer chamber (1021) and the second inner chamber (1022) are provided obliquely in different directions, respectively, with the longitudinal direction of the heat exchanging tube body (1) being a positive direction.

8. The heat exchange tube according to claim 7, wherein the first outer chamber (1011), the first inner chamber (1012), the second outer chamber (1021), and the second inner chamber (1022) are each disposed inclined at 45 degrees.

9. A heat exchange device, characterized by comprising a heat exchange tube (4) according to any one of claims 1 to 8.

10. A heat exchange device according to claim 9, comprising a plurality of said heat exchange tubes (4), a plurality of said heat exchange tubes (4) being disposed in a stacked relationship; the adjacent heat exchange tubes (4) are abutted with the second outer cavity (1021) through the first outer cavity (1011);

the device also comprises a first fixed plate (5) and a second fixed plate (6);

the two ends of the heat exchange tube are respectively fixed on the first fixing plate (5) and the second fixing plate (6).