Positioning structure for heat exchange tube in heat exchanger

Abstract

The utility model relates to a positioning structure for a heat exchange tube in a heat exchanger. The positioning structure comprises a heat exchange body, an upper end cover and a lower end cover, a heat exchange tube sleeve group for inserting heat exchange tubes is arranged in the heat exchange body; positioning protrusions are arranged on the inner wall of one end of the heat exchange pipe sleeve set and evenly distributed on the inner wall of the heat exchange pipe sleeve set, and the distance between the positioning protrusions is matched with the outer diameter of the heat exchange pipe. The upper end cover is installed on the upper portion of the heat exchange body, an upper positioning protrusion protruding downwards is arranged on the lower portion of the upper end cover, and the upper positioning protrusion abuts against the upper portions of the heat exchange pipes. The lower end cover is installed on the lower portion of the heat exchange body, a lower positioning protrusion protruding upwards is arranged on the upper portion of the lower end cover, and the lower positioning protrusion abuts against the lower portion of the heat exchange pipe so as to limit the heat exchange pipe from moving downwards. The heat exchanger has the advantages that the heat exchange tubes are convenient to install and stable in positioning, and gaps between the heat exchange tubes and the heat exchange tube sleeves are consistent.

Description

Technical Field

[0001] The utility model relates to a positioning structure for a heat exchange tube in a heat exchanger. Background Art

[0002] At present, the heat exchange tube of the heat exchanger is inserted into the heat exchange tube sleeve, and the heat exchange tube and the heat exchange tube sleeve are matched with each other in a gap, so that the liquid in the heat exchange tube and the liquid in the heat exchange tube sleeve can exchange heat. The installation of the heat exchange tube is troublesome, and the gap between the heat exchange tube and the heat exchange tube sleeve is uneven, which makes the heat exchange uneven and the heat exchange efficiency low. Summary of the invention

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a positioning structure for heat exchange tubes in a heat exchanger, which is convenient for installation of the heat exchange tubes, stable in positioning, and consistent in clearance between the heat exchange tubes and the heat exchange tube sleeves.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows: it is a positioning structure for heat exchange tubes in a heat exchanger, characterized in that it includes:

[0005] A heat exchange body; a heat exchange tube sleeve for inserting heat exchange tubes is provided in the heat exchange body; three or more positioning protrusions protruding inward are provided on the inner wall of one end of the heat exchange tube sleeve, the positioning protrusions are evenly distributed on the inner wall of the heat exchange tube sleeve, and the spacing between the positioning protrusions is adapted to the outer diameter of the heat exchange tube so that the positioning protrusions abut against the outer wall of the heat exchange tube to position the heat exchange tube;

[0006] Upper end cover; the upper end cover is mounted on the upper part of the heat exchange body, and an upper positioning protrusion protruding downward is provided at the lower part of the upper end cover, and the upper positioning protrusion abuts against the upper part of the heat exchange tube to limit the upward movement of the heat exchange tube;

[0007] The lower end cover is installed at the lower part of the heat exchange body, and a lower positioning protrusion protruding upward is provided on the upper part of the lower end cover, and the lower positioning protrusion abuts against the lower part of the heat exchange tube to limit the downward movement of the heat exchange tube.

[0008] In the technical solution, a guiding inclined surface is provided at the end of the positioning protrusion facing the inside of the heat exchange tube.

[0009] In this technical solution, the height of the positioning protrusion protruding inward is 25-35mm

[0010] In the technical solution, the height of the upper positioning protrusion protruding downward is 1.5-3.5 mm, and the height of the lower positioning protrusion protruding upward is 1.5-3.5 mm.

[0011] Compared with the prior art, the utility model has the following advantages: the heat exchange tube is easy to install, the positioning is stable, and the gap between the heat exchange tube and the heat exchange tube sleeve is consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a top view of the utility model;

[0014] Figure 3 yes Figure 2 AA section view;

[0015] Figure 4 It is an exploded view of the utility model;

[0016] Figure 5 It is a structural schematic diagram of the upper cover of the utility model;

[0017] Figure 6 It is a structural schematic diagram of the lower cover of the utility model;

[0018] Figure 7 It is a schematic diagram of the structure of the utility model after removing the upper cover and the lower cover. DETAILED DESCRIPTION

[0019] The specific implementation methods of the present invention are further described below in conjunction with the accompanying drawings. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention. In addition, the technical features involved in the various implementation methods of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0020] like Figures 1 to 7 As shown, it is a positioning structure for heat exchange tubes in a heat exchanger, comprising:

[0021] A heat exchange body 1; a heat exchange tube sleeve 11 for inserting a heat exchange tube 4 is provided in the heat exchange body; three or more positioning protrusions 111 protruding inward are provided on the inner wall of one end of the heat exchange tube sleeve 11, the positioning protrusions 111 are evenly distributed on the inner wall of the heat exchange tube sleeve 11, and the spacing between the positioning protrusions 111 is adapted to the outer diameter of the heat exchange tube 4 so that the positioning protrusions 111 abut against the outer wall of the heat exchange tube 4 to position the heat exchange tube 4;

[0022] The upper end cover 2 is installed on the upper part of the heat exchange body 1, and an upper positioning protrusion 21 protruding downward is provided at the lower part of the upper end cover 2. The upper positioning protrusion 21 abuts against the upper part of the heat exchange tube 4 to limit the upward movement of the heat exchange tube 4;

[0023] The lower end cover 3 is installed at the lower part of the heat exchange body 1, and an upwardly protruding lower positioning protrusion 31 is provided on the upper part of the lower end cover 3, and the lower positioning protrusion 31 abuts against the lower part of the heat exchange tube 4 to limit the downward movement of the heat exchange tube 4.

[0024] When in use, the heat exchange tube 4 is located between the positioning protrusions 111, so that the heat exchange tube 4 is located in the middle position of the corresponding heat exchange tube set 11, the gap between the outer wall of the heat exchange tube 4 and the inner wall of the corresponding heat exchange tube set 11 is consistent, the heat exchange is uniform and efficient, the upper positioning protrusion 21 abuts against the upper part of the heat exchange tube 4, and the lower positioning protrusion 31 abuts against the lower part of the heat exchange tube 4 so that the water outlet and water inlet of the heat exchange tube 4 are not disturbed, and the water inlet and outlet are convenient.

[0025] In this embodiment, a guiding inclined surface 112 is provided at the end of the positioning protrusion 111 facing the inside of the heat exchange tube 4 .

[0026] In this embodiment, the inward protrusion height of the positioning protrusion 111 is 25 mm, 30 mm or 35 mm.

[0027] In this embodiment, the downward protrusion height of the upper positioning protrusion 21 is 1.5 mm, 2 mm, 2.5 mm, 3 mm, or 3.5 mm, and the upward protrusion height of the lower positioning protrusion 31 is 1.5 mm, 2 mm, 2.5 mm, 3 mm, or 3.5 mm.

[0028] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the described embodiments. For ordinary technicians in this field, various changes, modifications, substitutions and deformations of these embodiments without departing from the principle and purpose of the present invention still fall within the scope of protection of the present invention.

Claims

1. A positioning structure for heat exchange tubes in a heat exchanger, characterized in that include: A heat exchange body (1); a heat exchange tube sleeve (11) for inserting a heat exchange tube (4) is provided in the heat exchange body; three or more positioning protrusions (111) protruding inward are provided on the inner wall of one end of the heat exchange tube sleeve (11); the positioning protrusions (111) are evenly distributed on the inner wall of the heat exchange tube sleeve (11); the spacing between the positioning protrusions (111) is adapted to the outer diameter of the heat exchange tube (4), so that the positioning protrusions (111) abut against the outer wall of the heat exchange tube (4) to position the heat exchange tube (4); An upper end cover (2); the upper end cover (2) is mounted on the upper part of the heat exchange body (1), and an upper positioning protrusion (21) protruding downward is provided on the lower part of the upper end cover (2), and the upper positioning protrusion (21) abuts against the upper part of the heat exchange tube (4) to limit the upward movement of the heat exchange tube (4); A lower end cover (3); the lower end cover (3) is mounted on the lower part of the heat exchange body (1); a lower positioning protrusion (31) protruding upward is provided on the upper part of the lower end cover (3); the lower positioning protrusion (31) abuts against the lower part of the heat exchange tube (4) to limit the downward movement of the heat exchange tube (4).

2. The positioning structure for heat exchange tubes in a heat exchanger according to claim 1, characterized in that A guiding inclined surface (112) is provided at the end of the positioning protrusion (111) facing the inside of the heat exchange tube (4).

3. The positioning structure for heat exchange tubes in a heat exchanger according to claim 1, characterized in that The inward protrusion height of the positioning protrusion (111) is 25-35 mm.

4. The positioning structure for heat exchange tubes in a heat exchanger according to claim 1, characterized in that The height of the upper positioning protrusion (21) protruding downward is 1.5-3.5 mm, and the height of the lower positioning protrusion (31) protruding upward is 1.5-3.5 mm.

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