CN216282927U - H-shaped finned tube bundle with multiple units arranged in combination - Google Patents
H-shaped finned tube bundle with multiple units arranged in combination Download PDFInfo
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- CN216282927U CN216282927U CN202220226273.8U CN202220226273U CN216282927U CN 216282927 U CN216282927 U CN 216282927U CN 202220226273 U CN202220226273 U CN 202220226273U CN 216282927 U CN216282927 U CN 216282927U
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Abstract
The utility model belongs to the field of heat exchange equipment, and relates to an H-shaped fin tube bundle arranged in a multi-unit combination mode, wherein each unit comprises a heat exchange base tube, H-shaped fin clusters and air flow partition grooves, each row and each column of units are arranged in close proximity, air flow channels of the H-shaped fin clusters of the upper and lower adjacent units are aligned, the air flow partition grooves of the front and rear adjacent units are aligned, the outer side surfaces of the H-shaped fin clusters are spaced, longitudinal partition strips are arranged between the air flow partition grooves of the adjacent units along the air flow direction, finned tube bundle supporting beams and tube bundle supporting beams are arranged above and below the H-shaped fin tube bundle, the tube bundle supporting beams are connected and support finned tubes, transverse distance strips are connected onto the finned tube supporting beams, each transverse distance strip comprises an arc-shaped groove, a convex air flow partition groove is placed in each arc-shaped groove, each transverse distance strip is connected with each longitudinal distance strip, and each longitudinal distance strip penetrates through the H-shaped fin clusters. Has the advantages that: the structure ensures that the H-shaped finned tube bundles arranged in a multi-unit combination mode can quickly determine respective positions, and the spacing is equal, firm and reliable.
Description
Technical Field
The utility model belongs to the technology of heat exchange equipment, and relates to a supporting structure with a plurality of H-shaped fin cluster units and an H-shaped fin tube bundle.
Background
The finned tube is a widely applied structure in a heat exchange device, the single-row tube finned tube has good external flow performance but low pressure bearing capacity, and is only suitable for micro-pressure and low-pressure occasions, such as a dead steam condenser and the like. For heat exchange equipment such as an economizer, an air cooler and the like, a pressure-resistant structural form with small air side resistance is needed to meet the quality improvement requirements of energy conservation and consumption reduction on the basis of pressure resistance. The installation spacing of multiple rows of finned tubes needs to be consistent, so that air flow is stable, but the spacing of finned tubes is not easy to maintain. The finned tube with the air flow dividing grooves has good heat exchange effect and energy conservation, but needs to be designed with a new proper supporting structure.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an H-shaped fin tube bundle which is combined and arranged in multiple units, has a reliable structure and is convenient to assemble.
The technical scheme of the utility model is as follows: a bundle of H-shaped fins arranged in a multi-unit combination, each unit being constituted by: by the heat transfer parent tube, the H type fin cluster that the symmetry set up (can be single tube heat transfer parent tube, also can be a plurality of heat transfer parent tubes side by side, H type fin is integrative from top to bottom), H type finned tube heat transfer unit is constituteed to the air current subregion bank of tubes spatial connection of both sides H type, fluid access arrangement or joint are connected at two ends of heat transfer parent tube, form the fluid flow pipeline of continuous intercommunication, a plurality of heat transfer unit matrix arrangements are arranged, each row of unit next-door neighbour arranges, the air current passageway of the H type fin cluster of upper and lower adjacent unit is adjusted well, the air current subregion bank of front and back adjacent unit is adjusted well and is drawn close together in proper order, H type fin cluster lateral surface and adjacent unit H type fin cluster lateral surface interval certain distance, realize the matrix arrangement by tube bank bearing structure, specifically as follows: along the air flow direction (generally arranged up and down), anti-cross flow longitudinal spacing strips are arranged between the air flow partition grooves of adjacent units, the longitudinal spacing strips enable the up-and-down adjacent units to keep uniform spacing distance, finned tube supporting beams and tube supporting beams are arranged above and below (leeward side and windward side) H-shaped finned tube bundles, the tube supporting beams are arranged below the finned tube supporting beams and used for connecting and supporting the finned tube supporting beams, transverse spacing strips are connected onto the finned tube supporting beams, each transverse spacing strip comprises an arc-shaped groove, the air flow partition grooves in contact with the arc-shaped grooves are convex, the convex shapes are matched with the radian of the arc-shaped grooves, the corresponding areas of the transverse spacing strips below the H-shaped fin clusters of the adjacent units are connected with longitudinal spacing strips, the longitudinal spacing strips penetrate through the H-shaped fin clusters of the adjacent units, and two ends of the longitudinal spacing strips are respectively connected to the upper portions, On the lower transverse distance bars, the transverse distance bars and the longitudinal distance bars fix the positions of all the units in the horizontal direction and the vertical direction.
Longitudinal distance strip both ends and horizontal distance strip are taut connection mode, establish the slot hole on the horizontal distance strip, and longitudinal distance strip end passes the slot hole of establishing on the horizontal distance strip, and the end of wearing out curls the anchoring with the instrument, curls and forms the dog, and the dog blocks longitudinal distance strip end from the slot hole slippage. The width of the longitudinal distance bars is smaller than the length of the long holes of the transverse distance bars, and the thickness of the longitudinal distance bars is smaller than the gaps among the fins.
The arc-shaped groove of the transverse distance bar is formed by pressing, the upper part of the arc-shaped groove is concave and the lower part of the arc-shaped groove is convex, the finned tube supporting beam is provided with an arc-shaped groove, and the arc-shaped groove is matched with the arc-shaped groove of the transverse distance bar in a downward convex mode. The cross section of the transverse distance bars is similar to that of a channel steel. The arc-shaped grooves enable the transverse distance bars to be wave-shaped laths, the upper surface is formed by connecting a straight section with an arc wave trough and then connecting a straight section with a straight section, the step length of one period is the width of one finned tube unit, and the structure is repeated in sequence.
The section shape of the contact part of the finned tube supporting beam and the tube bundle supporting beam is U-shaped, the U-shaped part is provided with a plurality of expansion joints, the expansion joints are arranged around the U-shaped part, and the expansion joints are parallel to each other. The expansion joint has the function of reserving deformation for expansion with heat and contraction with cold.
The cross section of the tube bundle supporting beam is n-shaped (n-mathematical operation signs of various multiplication and multiplication), the upper edge of the n-shaped is buckled with the side edge of the finned tube supporting beam, two ends of the tube bundle supporting beam are connected with the connecting plate, an expansion joint for compensating thermal expansion is arranged at the connecting part of the tube bundle supporting beam and the connecting plate, and the connecting plate is connected and fixed at the corresponding connecting part of equipment where the H-shaped finned tube bundle is located, such as a tube bundle side beam, a boiler flue and the like.
The side edge of the finned tube supporting beam is provided with a clamping groove, and the side edge of the transverse distance bar is fixed with a clamping tooth which is inserted into the clamping groove and buckled with the clamping groove for installation and connection.
The cross section of the longitudinal division bar is circular or long circular (namely 0-shaped) or rhombic.
The length of the transverse spacing bars is greater than or equal to the overall transverse width of the H-shaped fin tube bundle, and the length of the longitudinal spacing bars is greater than the overall height of the H-shaped fin tube bundle.
End blocking pieces are arranged on the outer edges of adjacent side plates (side plates of the heat exchange units close to the transverse distance bars) between the rows of the H-shaped finned tubes.
The utility model has the beneficial effects that: the structure enables the H-shaped fin tube bundle arranged by combining the multiple units to quickly determine the respective positions and be reliably fixed, so that the front and back spacing distances of the adjacent units are equal, and the spacing distance between the outer side surface of the H-shaped fin cluster and the outer side surface of the H-shaped fin cluster of the adjacent unit is equal. The structure is simple and effective, and the subsequent installation and maintenance are also convenient. The longitudinal division bars ensure that the longitudinal position of a row of tubes is accurately determined, and air flow dividing grooves are fully utilized to divide all rows of finned tubes, so that air flow cannot be in cross flow. On one supporting section, the longitudinal spacing bars, the transverse spacing bars and the longitudinal spacing bars form a rectangular grid, and the positions of all rows and all rows of H-shaped finned tubes are fixed. The finned tube support beams enhance support stiffness and compensate for distortion. The tube bundle support beam is below the finned tube support beam, increasing the flexural modulus. The end baffle plates prevent the leakage of the channels among the rows (the gaps among the side plates of the heat exchange base tubes of the rows are leakage channels of gas outside the tubes and need to be blocked).
Drawings
FIG. 1 is a cross-sectional view of a tube bundle of the present invention;
FIG. 2 is a side view of a tube bundle of the present invention;
FIG. 3 is a block diagram of the transverse and longitudinal spacers according to the utility model;
FIG. 4 is a side view of the transverse and longitudinal spacers of the present invention;
FIG. 5 is a structural view of the finned tube support beam of the utility model;
FIG. 6 is a side view structural view of the finned tube support beam of the utility model;
FIG. 7 is a block diagram of a tube bundle support beam of the present invention;
in the figure: the structure comprises 1-H-shaped fin clusters, 2-longitudinal partition bars, 3-transverse distance bars, 4-longitudinal distance bars, 5-finned tube supporting beams, 6-tube bundle supporting beams, 7-end blocking pieces, 8-clamping teeth and 9-clamping grooves.
Detailed Description
The utility model is described in more detail below with reference to the figures and the embodiments. The following examples are presented to facilitate a better understanding of the utility model by a person skilled in the art and are not intended to limit the utility model in any way. And it should be noted that, for those skilled in the art, equivalent changes can be made on the basis of the present invention, which falls within the protection scope of the present invention.
Fig. 1-7 are schematic structural diagrams of the present invention, the H-shaped finned tube bundle is a multi-unit combined arrangement, each unit is composed of a heat exchange base tube, H-shaped finned clusters symmetrically arranged, and air flow dividing grooves spatially connected with the H-shaped finned tubes at two sides, the H-shaped fins are arranged in a rectangular shape, and two ends of the heat exchange base tube are connected with a fluid inlet and outlet device or a joint to form a continuously communicated fluid flow pipeline. The finned tubes in each row and each column are arranged closely; along the airflow direction, a longitudinal parting strip 2 for preventing cross flow is arranged between the airflow zoning grooves of two adjacent rows of H-shaped finned tubes; the finned tube support structure comprises tube bundle supports arranged at intervals along the axis direction of finned tubes, wherein each tube bundle support comprises two transverse spacing bars 3, a plurality of longitudinal spacing bars 4, two finned tube supporting beams 5 and two tube bundle supporting beams 6, and two end retaining pieces 7 are arranged between adjacent finned tubes. According to different application occasions, one set of H-shaped finned tube bundles is provided with one or more tube boxes, tube bundle side beams or collecting tubes and the like in a matched mode. The collecting pipe, the pipe box and the pipe bundle side beam all adopt the prior art structure.
Embodiment 1 is an H-type finned tube bundle applied to an economizer, and according to the existing installation method for forming a continuously-communicated fluid flow pipeline, one tube bundle is provided with two collecting tubes, each collecting tube is of a circular cross section, finned tube holes are formed in the collecting tubes in different directions (two directions) along the length direction at certain intervals, the center interval of the holes in the axial direction of the collecting tubes is the center interval of each row of finned tubes, each tube hole is connected with a reinforcing tube seat, each reinforcing tube seat is connected with one H-type finned tube, the end part of a heat exchange base tube is connected with a 180-degree elbow, then the H-type finned tubes of the next tube pass are connected, and after multiple passes are sequentially arranged, the tube ends of the H-type finned tubes are connected with the reinforcing tube seats and the collecting tubes.
The utility model is characterized in that: on the cross section of the tube bundle, H-shaped fins are arranged in a rectangular shape, and rows and columns of finned tubes are arranged in close proximity. The fin clusters of two adjacent rows of heat exchange base tubes are aligned and sequentially adjacent, and the airflow partition grooves of two adjacent rows of heat exchange base tubes are aligned and sequentially closed; the fin clusters of two adjacent rows of finned tubes are arranged in side-by-side close proximity. And a longitudinal division bar 2 for preventing gas cross flow along the axis direction of the finned tube is arranged between the airflow division grooves of two adjacent H-shaped finned tubes along the flowing direction of gas outside the tube. The cross-sectional shape of the longitudinal division bar 2 is circular or oblong or diamond.
The tube bundle of example 1 was constructed by arranging fin tube support beams 5 and tube bundle support beams 6 in a span along the axial direction of the heat exchange base tube. The finned tube supporting beam 5 is connected above the tube bundle supporting beam 6, and the transverse distance bars 3 are connected on the finned tube supporting beam 5. The windward side and the leeward side of the tube bundle are respectively provided with one transverse distance bar 3, the longitudinal distance bar 4 penetrates through a long hole in one transverse distance bar 3, then penetrates through a gap between the outer side faces of the adjacent H-shaped fin clusters 1 and then penetrates through a long hole in the other transverse distance bar 3, and the other end of the longitudinal distance bar 4 is curled and anchored. All finned tube units in the horizontal and vertical directions are fixed, the front and back spacing distances of adjacent units are equal, and the spacing distances between the outer side surfaces of the H-shaped fin clusters and the outer side surfaces of the H-shaped fin clusters of the adjacent units are equal.
The arc-shaped grooves of the transverse distance bars 3 can be milled grooves (requiring a certain thickness of material, heavy and costly, generally not selected) or formed by pressing plate-shaped materials. If the finned tube is formed by pressing, the finned tube is concave upwards and convex downwards, and an arc-shaped groove is formed on the edge of the finned tube supporting beam 5 contacting the finned tube in order to be matched with the convex downwards. The air flow dividing groove contacted with the arc-shaped groove is convex. The arc-shaped groove and the arc-shaped groove are in concave-convex fit contact with the convex part at the same time. The section of the finned tube support beam 5 is U-shaped, a plurality of expansion joints are arranged, the expansion joints are arranged in a surrounding mode along the U-shaped, and the expansion joints are parallel to each other. The expansion joint is used for balancing the thermal expansion deformation. The side edge of the finned tube support beam 5 is provided with a clamping groove, the side edge of the transverse distance bar 3 is fixed with a clamping tooth 8, and the clamping tooth 8 is inserted into the clamping groove 9 and is buckled with the clamping groove 9 for installation and connection.
The cross section of the tube bundle supporting beam 6 is n-shaped, and the upper edge of the n-shaped is buckled with the side edge of the finned tube supporting beam 5. Two ends of the tube bundle supporting beam 6 are connected with a connecting plate of a boiler flue, and an expansion joint for compensating thermal expansion is arranged at the connecting part of the tube bundle supporting beam 6 and the connecting plate.
The tube bundle was identical in cross section to example 1. The shapes and the connection installation relations of the transverse distance bars 3, the longitudinal distance bars 4, the finned tube support beams 5 and the tube bundle support beams 6 are also the same as the embodiment example 1. In contrast to the example 1: two ends of the tube bundle supporting beam 6 are connected with the connecting plates on the tube bundle side beams, and expansion joints for compensating thermal expansion are also arranged at the joints of the tube bundle supporting beam 6 and the connecting plates.
Claims (9)
1. A bundle of H-shaped fins arranged in a multi-unit combination, each unit being constituted by: the H-shaped finned tube heat exchange unit is formed by air flow partition grooves of heat exchange base tubes, symmetrically arranged H-shaped finned tube clusters and two sides H-shaped finned tube space connections, and two ends of each heat exchange base tube are connected with a fluid inlet and outlet device or a connector to form a continuously communicated fluid flow pipeline, and the heat exchange base tube is characterized in that: a plurality of heat transfer unit matrix arrangement arranges, and each row, each unit next-door neighbour arrange, and the air current passageway of the H type fin cluster of upper and lower adjacent unit is adjusted well, and the air current subregion groove of adjacent unit is adjusted well and is drawn close together in proper order around, and H type fin cluster lateral surface and adjacent unit H type fin cluster lateral surface interval certain distance realize the matrix arrangement by tube bank bearing structure, specifically as follows: along the air flow direction, anti-cross flow longitudinal spacers (2) are arranged between air flow partition grooves of adjacent units, the longitudinal spacers (2) enable the upper and lower adjacent units to keep uniform spacing distance, finned tube supporting beams (5) and tube bundle supporting beams (6) are arranged above and below an H-shaped finned tube bundle, the tube bundle supporting beams (6) are arranged below the finned tube supporting beams (5), the tube bundle supporting beams (6) are used for connecting and supporting the finned tube supporting beams (5), the finned tube supporting beams (5) are connected with transverse spacers (3), the transverse spacers (3) comprise arc-shaped grooves, air flow partition grooves in contact with the arc-shaped grooves are convex, the convex shapes are matched with the radian of the arc-shaped grooves, the corresponding areas of the transverse spacers (3) below the H-shaped fin cluster spaces of the adjacent units are connected with longitudinal spacers (4), and the longitudinal spacers (4) penetrate through the H-shaped fin cluster spaces of the adjacent units, two ends of the longitudinal distance bar (4) are respectively connected with the upper and lower transverse distance bars (3), and the transverse distance bars (3) and the longitudinal distance bars (4) fix the positions of all units in the horizontal and vertical directions.
2. The H-shaped finned tube bundle of claim 1 in a multi-unit unitized arrangement, wherein: longitudinal distance strip (4) both ends are the taut formula connected mode with horizontal distance strip (3), establish the slot hole on horizontal distance strip (3), and the slot hole of establishing on horizontal distance strip (3) is passed to longitudinal distance strip (4) end, and the end of wearing out curls and forms the dog-ear, and the dog-ear blocks longitudinal distance strip (4) end and follows the slot hole slippage.
3. The H-shaped finned tube bundle of claim 1 in a multi-unit unitized arrangement, wherein: the arc-shaped groove of the transverse distance bar (3) is formed by pressing, the upper part is concave, the lower part is convex, the finned tube supporting beam (5) is provided with an arc-shaped groove, and the arc-shaped groove is matched with the arc-shaped groove of the transverse distance bar (3) in a downward convex mode.
4. The H-shaped finned tube bundle of claim 1 in a multi-unit unitized arrangement, wherein: the section shape of the contact part of the finned tube supporting beam (5) and the tube bundle supporting beam (6) is U-shaped, a plurality of expansion joints are arranged at the U-shaped part, the expansion joints are arranged around the U-shaped part, and the expansion joints are parallel to each other.
5. The bundle of multi-unit H-shaped fins according to claim 4, wherein: the cross section of the tube bundle supporting beam (6) is n-shaped, the upper edge of the n-shaped tube bundle supporting beam is buckled with the side edge of the finned tube supporting beam (5), the two ends of the tube bundle supporting beam (6) are connected with the connecting plate, an expansion joint for compensating thermal expansion is arranged at the connecting part of the tube bundle supporting beam (6) and the connecting plate, and the connecting plate is connected and fixed at the corresponding connecting part of the equipment where the H-shaped finned tube bundle is located.
6. The H-shaped finned tube bundle of claim 1 in a multi-unit unitized arrangement, wherein: clamping grooves (9) are formed in the side edges of the finned tube supporting beams (5), clamping teeth (8) are fixed to the side edges of the transverse distance bars (3), and the clamping teeth (8) are inserted into the clamping grooves (9) and are buckled with the clamping grooves (9) to be installed and connected.
7. The H-shaped finned tube bundle of claim 1 in a multi-unit unitized arrangement, wherein: the cross section of the longitudinal division bar (2) is round, long round or diamond.
8. The H-shaped finned tube bundle of claim 1 in a multi-unit unitized arrangement, wherein: the length of the transverse spacing bars (3) is larger than or equal to the overall transverse width of the H-shaped fin tube bundle, and the length of the longitudinal spacing bars (4) is larger than the overall height of the H-shaped fin tube bundle.
9. The H-shaped finned tube bundle of claim 1 in a multi-unit unitized arrangement, wherein: end blocking pieces (7) are arranged on the outer edges of the adjacent side plates between the rows of the H-shaped finned tubes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220226273.8U CN216282927U (en) | 2022-01-27 | 2022-01-27 | H-shaped finned tube bundle with multiple units arranged in combination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220226273.8U CN216282927U (en) | 2022-01-27 | 2022-01-27 | H-shaped finned tube bundle with multiple units arranged in combination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216282927U true CN216282927U (en) | 2022-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220226273.8U Active CN216282927U (en) | 2022-01-27 | 2022-01-27 | H-shaped finned tube bundle with multiple units arranged in combination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216282927U (en) |
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2022
- 2022-01-27 CN CN202220226273.8U patent/CN216282927U/en active Active
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