Finned tube with medium flow velocity adjusting structure

Abstract

The utility model discloses a finned tube with a medium flow velocity adjusting structure, which belongs to the field of electric tube bundles for electric heat exchange and comprises a large flat tube group welded tube, a turbolator and a support plate. Each supporting plate is a batten with a U-shaped section in the vertical direction, a protruding table is arranged in the middle of the bottom edge of each U-shaped section, the height of the supporting plates is larger than the width of the supporting plates, the supporting plates are arranged in a large flat pipe group welding pipe cavity at equal intervals in the vertical direction, and two folded edges and the bottom edge in the U-shaped section of each supporting plate are tightly attached to the side wall of the large flat pipe group welding pipe cavity. Supporting plates located at the two ends of the large flat pipe group welding pipe cavity are welded to the side wall of the pipe cavity; the turbolator is located between the two supporting plates and is a rectangular batten which is arranged in the left-right direction and rotates and twists, the two ends of the rectangular batten are fixedly connected with one end of a mounting plate with the same size, and the width and the thickness of the mounting plate are the same as those of the rectangular batten. Mounting plates at the left end and the right end of the rectangular batten are welded to the upper end of a boss arranged in the middle of the U-shaped bottom edge of the supporting plate; according to the utility model, the turbolator is utilized to slow down the speed of a medium in the large flat pipe, so that the purpose of reducing the pressure in the pipe is achieved, and the deformation of the pipe body is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of electric power tube bundles for electric power heat exchange, in particular to a finned tube with a medium flow rate regulating structure. Background Art

[0002] Finned tubes are key components in the heat dissipation of medium in power tube bundles. Power tube bundles are composed of finned tubes (finned tubes), distribution boxes and condensate tanks.

[0003] When the equipment is running, the medium flow rate is fast and the fin tube is under great pressure, which causes the fin tube to deform greatly during the vacuum pressure test. The existing fin tube structure can no longer meet the test pressure requirements, so a new type of fin tube that can effectively control the medium flow rate is urgently needed. Utility Model Content

[0004] The utility model aims to provide a fin tube with a medium flow rate regulating structure to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A finned tube with a medium flow rate regulating structure comprises a large flat tube welded tube, a spoiler and a support plate; a plurality of support plates are arranged at equal intervals in the large flat tube welded tube cavity, the support plate is a slat arranged in the up-down direction and the cross-sectional shape of the slat in the up-down direction is U-shaped, a raised platform is arranged in the middle of the bottom edge of the U-shape, the height of the support plate in the up-down direction is greater than its width in the left-right direction, the two folded edges and the bottom edge of the U-shaped cross-sectional shape of the support plate itself are both tightly attached to the side wall of the large flat tube welded tube cavity, and the support plates located at both ends of the large flat tube welded tube cavity are welded to the side wall of the tube cavity; the spoiler is a rectangular slat arranged in the left-right direction and rotated and twisted, the two ends of the rectangular slat are respectively fixedly connected to one end of a mounting plate, the width of the mounting plate in the up-down direction and its own thickness are the same as those of the rectangular slat, and the mounting plates at the left and right ends of the rectangular slat are both welded to the upper end of the raised platform arranged in the middle of the bottom edge of the U-shape of the support plate itself.

[0007] The large flat tube welded lumen is a single large flat tube, and three support plates are arranged at equal intervals from left to right in the large flat tube lumen, and the mounting plates at both ends of the long strip plate of the spoiler itself are welded to the upper ends of the raised platforms of two adjacent support plates; wherein, the right end of the mounting plate at the right end of the spoiler itself between the first two support plates among the three support plates is aligned with the left end of the mounting plate at the left end of the spoiler between the last two support plates among the three support plates, and both are welded to the upper end face of the raised platform of the support plate located in the middle among the three support plates in the large flat tube lumen; the support plates welded at both ends of the large flat tube lumen, wherein the support plate located at one end of the large flat tube lumen is 5-7 mm away from the end face of the lumen itself, and the support plate located at the other end of the large flat tube lumen is 7-10 mm away from the end face of the lumen itself.

[0008] The large flat tube welded lumen is a pipeline composed of multiple large flat tubes assembled and welded end to end, and multiple support plates are arranged in the pipeline lumen at equal intervals. The mounting plates at both ends of the long strip plate of the spoiler itself are welded to the upper ends of the raised platforms of two adjacent support plates; the end face of the mounting plate at one end of the long strip plate of the spoiler itself is aligned with the end face of the mounting plate at the corresponding end of the long strip plate of the adjacent spoiler itself, and both are welded to the upper end face of the raised platform of the support plate in the pipeline lumen; the support plates welded at both ends of the pipeline lumen, wherein the support plate located at one end of the pipeline lumen is 5-7 mm away from the end face of the lumen itself, and the support plate located at the other end of the pipeline lumen is 7-10 mm away from the end face of the lumen itself.

[0009] The spoiler has a width of 15 mm, and the support plate has a width of 20 mm.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model discloses a fin tube with a medium flow rate regulating structure, which is formed by welding a 15mm wide spoiler and a 20mm wide support plate. The fin tube is installed in the large flat tube by wire traction before the large flat tube is assembled with the power tube bundle. The two end ends are welded to the large flat tube by the support plate, and the power tube bundle is assembled and welded after the fixation is completed. The spoiler is used to slow down the medium speed in the large flat tube, so as to reduce the pressure in the tube and avoid the deformation of the tube body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of a large flat tube structure of a finned tube with a medium flow rate adjustment structure according to the utility model;

[0013] Figure 2 This is a welding structure diagram of a spoiler and a support plate in a fin tube with a medium flow rate regulating structure of the utility model;

[0014] In the figure: 1 large flat tube; 2 spoiler; 201 mounting plate; 3 support plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] Please refer to the legend, a fin tube with a medium flow rate regulating structure, comprising a large flat tube 1 group welded tube, a spoiler 2, and a support plate 3; a plurality of support plates 3 are arranged at equal intervals in the large flat tube 1 group welded tube cavity, the support plate 3 is a slat arranged in the up-down direction, and the cross-sectional shape of the slat in the up-down direction is U-shaped, a raised platform is arranged in the middle of the bottom edge of the U-shape, the height of the support plate 3 in the up-down direction is greater than its width in the left-right direction, the two folded edges and the bottom edge of the U-shaped cross-sectional shape of the support plate 3 itself are both tightly attached to the side wall of the large flat tube 1 group welded tube cavity, and the support plates 3 located at both ends of the large flat tube 1 group welded tube cavity are welded to the side wall of the tube cavity; the spoiler 2 is a rectangular slat arranged in the left-right direction and rotated and twisted, and the two ends of the rectangular slat are respectively fixedly connected to one end of a mounting plate 201, the width of the mounting plate 201 in the up-down direction and its own thickness are the same as those of the rectangular slat, and the mounting plates 201 at the left and right ends of the rectangular slat are welded to the upper end of the raised platform arranged in the middle of the bottom edge of the U-shape of the support plate 3 itself.

[0017] The welded lumen of the large flat tube 1 is a single large flat tube 1, and three support plates 3 are arranged at equal intervals from left to right in the lumen of the large flat tube 1, and the mounting plates 201 at both ends of the long strip plate of the spoiler itself are welded to the upper ends of the raised platforms of two adjacent support plates 3; wherein, the right end of the mounting plate 201 at the right end of the spoiler itself between the first two support plates 3 among the three support plates 3 is aligned with the left end of the mounting plate 201 at the left end of the spoiler between the last two support plates 3 among the three support plates 3, and both are welded to the upper end surface of the raised platform of the support plate 3 located in the middle among the three support plates 3 in the lumen of the large flat tube 1; the support plates 3 welded at both ends of the lumen of the large flat tube 1, wherein the support plate 3 located at one end of the lumen of the large flat tube 1 is 5-7 mm away from the end face of the lumen itself, and the support plate 3 located at the other end of the lumen of the large flat tube 1 is 7-10 mm away from the end face of the lumen itself.

[0018] The large flat tube 1 welded lumen is a pipeline composed of multiple large flat tubes 1 assembled and welded end to end, and multiple support plates 3 are arranged in the pipeline lumen at equal intervals. The mounting plates 201 at both ends of the long strip plate of the spoiler itself are welded to the upper ends of the raised platforms of two adjacent support plates 3; the end face of the mounting plate 201 at one end of the long strip plate of the spoiler itself is aligned with the end face of the mounting plate 201 at the corresponding end of the long strip plate of the adjacent spoiler itself, and both are welded to the upper end face of the raised platform of the support plate 3 in the pipeline lumen; the support plates 3 welded at both ends of the pipeline lumen, wherein the support plate 3 located at one end of the pipeline lumen is 5-7 mm away from the end face of the lumen itself, and the support plate 3 located at the other end of the pipeline lumen is 7-10 mm away from the end face of the lumen itself.

[0019] The spoiler 2 has a width of 15 mm, and the support plate 3 has a width of 20 mm.

[0020] The assembly welding steps of the utility model are:

[0021] 1. Rust removal: The surfaces of the spoiler 2 and the support plate 3 should be degreased and rusted first.

[0022] 2. Assembly of the spoiler 2 and the support plate 3: The spoiler 2 is installed on the convex surface of the support platform of the support plate 3, the end faces of the two spoilers 2 are aligned, and the two spoilers 2 are positioned with the mounting plate using a positioning fixture to ensure that the joint seam of the spoiler 2 is in the middle of the support plate 3, and the verticality of the axis of the support plate 3 and the spoiler 2 is not greater than 0.5 mm; then a spot welding machine is used for spot welding, and the welding between the spoiler 2 and the support plate 3 should be firm and reliable.

[0023] Modular processing can be adopted according to the length of the large flat tube welded pipe, that is, three spoilers 2 and three support plates 3 are welded together first, and then the welding is repeated in the form of "support plate 3 + spoiler 2 + support plate 3 + spoiler 2 + support plate 3..." to form a welded part, which is convenient for production and storage.

[0024] 3. Installation of the spoiler 2 and support plate 3 assembly inside the large flat tube 1: Before installation, the spoiler 2 and support plate 3 shall be spliced ​​and welded as required. It is necessary to ensure that both ends of the large flat tube assembly pipe itself are support plates 3. Use steel wire to pull the spoiler 2 welded parts into the large flat tube 1. When assembling the power tube bundle, it is necessary to ensure that the support plate 3 at one end of the large flat tube 1 is welded and fixed at 5~7mm from the pipe head, and 7~10mm at the other end (on the side of the flat pipe head when assembling the power tube bundle) to facilitate the final welding and fixation of the support plate 3.

[0025] 4. Fix the support plate 3: Use argon arc welding to spot weld the two support plates 3 at the end and the large flat tube 1. Pay attention to controlling the current and the position of the welding nozzle to avoid damaging the inside of the large flat tube 1.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A fin tube with a medium flow rate regulating structure, characterized in that: It comprises a large flat tube welded tube, a spoiler and a support plate; a plurality of support plates are arranged at equal intervals in the large flat tube welded tube cavity; the support plate is a slat arranged in the up-down direction and the cross-sectional shape of the slat in the up-down direction is U-shaped, a raised platform is arranged in the middle of the bottom edge of the U-shape, the height of the support plate in the up-down direction is greater than its width in the left-right direction, the two folded edges and the bottom edge of the U-shaped cross-sectional shape of the support plate itself are tightly attached to the side wall of the large flat tube welded tube cavity, and the support plates located at both ends of the large flat tube welded tube cavity are welded to the side wall of the tube cavity; the spoiler is a rectangular slat arranged in the left-right direction and rotated and twisted, the two ends of the rectangular slat are respectively fixedly connected to one end of a mounting plate, the width of the mounting plate in the up-down direction and the thickness of the mounting plate in the front-back direction are the same as those of the rectangular slat, and the mounting plates at the left and right ends of the rectangular slat are welded to the upper end of the raised platform arranged in the middle of the bottom edge of the U-shape of the support plate itself.

2. The fin tube with medium flow rate regulating structure according to claim 1, characterized in that: The large flat tube welded lumen is a single large flat tube, and three support plates are arranged at equal intervals from left to right in the large flat tube lumen, and the mounting plates at both ends of the long strip plate of the spoiler itself are welded to the upper ends of the raised platforms of two adjacent support plates; wherein, the right end of the mounting plate at the right end of the spoiler itself between the first two support plates among the three support plates is aligned with the left end of the mounting plate at the left end of the spoiler between the last two support plates among the three support plates, and both are welded to the upper end face of the raised platform of the support plate located in the middle among the three support plates in the large flat tube lumen; the support plates welded at both ends of the large flat tube lumen, wherein the support plate located at one end of the large flat tube lumen is 5-7 mm away from the end face of the lumen itself, and the support plate located at the other end of the large flat tube lumen is 7-10 mm away from the end face of the lumen itself.

3. The fin tube with medium flow rate regulating structure according to claim 1, characterized in that: The large flat tube welded lumen is a pipeline composed of multiple large flat tubes assembled and welded end to end, and multiple support plates are arranged in the pipeline lumen at equal intervals. The mounting plates at both ends of the long strip plate of the spoiler itself are welded to the upper ends of the raised platforms of two adjacent support plates themselves; the end face of the mounting plate at one end of the long strip plate of the spoiler itself is aligned with the end face of the mounting plate at the corresponding end of the long strip plate of the adjacent spoiler itself, and both are welded to the upper end face of the raised platform of the support plate in the pipeline lumen; the support plates welded at both ends of the pipeline lumen, wherein the support plate located at one end of the pipeline lumen is 5-7 mm away from the end face of the lumen itself, and the support plate located at the other end of the pipeline lumen is 7-10 mm away from the end face of the lumen itself.

4. The fin tube with a medium flow rate regulating structure according to claim 1, characterized in that: The spoiler is 15mm wide and the support plate is 20mm wide.

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