CN219368482U - Spiral baffle heat exchanger - Google Patents
Spiral baffle heat exchanger Download PDFInfo
- Publication number
- CN219368482U CN219368482U CN202320593628.1U CN202320593628U CN219368482U CN 219368482 U CN219368482 U CN 219368482U CN 202320593628 U CN202320593628 U CN 202320593628U CN 219368482 U CN219368482 U CN 219368482U
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- shell
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a spiral baffle heat exchanger, which comprises a shell, wherein a material inlet and a material outlet are arranged on the side surface of the shell, a heat exchange tube is arranged in the shell, and tube plates are respectively arranged at two ends of the shell; a baffle plate assembly in spiral distribution is arranged between the two tube plates, and the heat exchange tubes are simultaneously inserted into the tube plates and the baffle plate assembly; the baffle plate assembly comprises fan-shaped panels and bending transition pieces, and the bending transition pieces for connecting the fan-shaped panels and the bending transition pieces are arranged between any two fan-shaped panels; one end face of the bending transition piece is welded with the sector-shaped panel, and a fastener for connecting the other end face of the bending transition piece and the sector-shaped panel is arranged between the other end face of the bending transition piece and the sector-shaped panel; the fan-shaped panels are mutually spliced in sequence to form a baffle plate assembly for changing the flow direction of liquid, and the baffle plate assembly is in a discontinuous spiral shape; the baffle plate assembly formed by mutually splicing the plurality of sector-shaped panels is designed in the shell, the two sector-shaped panels are connected through the bending transition piece, the processing and the assembly are convenient, and the heat exchange effect is good.
Description
Technical Field
The utility model belongs to the technical field of heat exchangers, and particularly relates to a spiral baffle plate heat exchanger.
Background
The shell-and-tube heat exchanger mainly comprises a heat exchange tube and a shell, wherein the heat exchange tube is connected with a tube plate and then fixed by the shell, and cold and hot fluid respectively flows through the heat exchange tube and the space between the shell and the heat exchange tube. Baffles are often arranged in the existing shell-and-tube heat exchanger, and common baffles are arched and continuous spiral baffles; the arched baffle plates enable the fluid to vertically impact the wall surface of the shell, so that larger along-path pressure drop is caused; meanwhile, a flow stagnation dead zone is generated at the joint of the arched baffle plate and the wall surface of the shell, so that the heat exchange efficiency is reduced; because the heat exchange effect of the arched baffle plate is poor, the baffle plate is usually designed into a continuous spiral state. However, the continuous spiral baffle plate is difficult to process, the curved surface on the baffle plate is difficult to punch, and the processing cost is high. At the same time, the bottom flow rate of the continuous helical baffles tends to be low and fouling tends to form, which reduces heat exchange efficiency. Therefore, there is a need to design a spiral baffle heat exchanger to overcome the above difficulties.
Disclosure of Invention
The utility model designs a spiral baffle plate heat exchanger aiming at the problems in the prior art, and designs a baffle plate assembly which is discontinuous spiral in a shell, wherein the baffle plate assembly is formed by splicing a plurality of sector-shaped panels, and the two sector-shaped panels are connected through a bending transition piece, so that the spiral baffle plate heat exchanger is convenient to process and assemble, good in heat exchange effect and convenient to maintain.
The utility model aims at realizing the following technical scheme: the spiral baffle plate heat exchanger comprises a shell, wherein a material inlet and a material outlet are formed in the side face of the shell, a plurality of heat exchange tubes which are uniformly distributed are arranged in the shell, and tube plates used for fixing the heat exchange tubes are respectively arranged at two ends of the shell; a plurality of baffle plate assemblies in spiral distribution are arranged between the two tube plates, and the heat exchange tubes are simultaneously inserted in the tube plates and the baffle plate assemblies; the baffle plate assembly comprises fan-shaped panels and bending transition pieces, wherein the bending transition pieces for connecting the fan-shaped panels and the bending transition pieces are arranged between any two fan-shaped panels; one end face of the bending transition piece is welded with the sector panel, and a fastener for connecting the other end face of the bending transition piece and the sector panel is arranged between the other end face of the bending transition piece and the sector panel; each fan-shaped panel is mutually spliced in sequence to form a baffle plate assembly for changing the flow direction of liquid, and the baffle plate assembly is in a discontinuous spiral shape.
Preferably, the bending transition piece comprises a first mounting plate and a second mounting plate, and the first mounting plate and the second mounting plate are mutually perpendicular; the first mounting plate is welded with the sector panel, and the second mounting plate is connected with the sector panel through a fastener.
The bending transition piece is bent through a whole plate to form the first mounting plate and the second mounting plate, so that the processing is convenient. Meanwhile, the first mounting plate and the second mounting plate are mutually perpendicular, so that the fan-shaped panel is convenient to mount, and the fan-shaped panel is distributed in a spiral state.
Preferably, a plurality of positioning pins for positioning are arranged between the first mounting plate and the sector panel, a first mounting hole for mounting the positioning pin is formed in the end face, facing the first mounting plate, of the sector panel, and a second mounting hole for mounting the positioning pin is formed in the end face, facing the sector panel, of the first mounting plate; each first mounting hole corresponds to each second mounting hole one by one, and the first mounting holes and the second mounting holes are coaxially arranged.
Before the fan-shaped panel is welded with the first mounting plate, the fan-shaped panel is positioned through the positioning pin, so that the relative position of the first mounting plate and the fan-shaped panel is kept fixed, and the welding effect of the first mounting plate and the fan-shaped panel is better.
Preferably, the upper end surface of the first mounting plate is positioned on a horizontal plane, the side surface of the second mounting plate is positioned in a vertical plane, the upper end surface of the first mounting plate and the side surface of the second mounting plate are mutually perpendicular, and the sector panel is arranged on the side surface of the second mounting plate; the fan-shaped panel has an inclination angle with the horizontal plane when the side surface of the second mounting plate is in the vertical plane, the inclination angle range of the fan-shaped panel and the horizontal plane is within-degree, and the fan-shaped panel inclines towards the bottom of the shell.
Through connect the fan-shaped panel on the second mounting panel, the fan-shaped panel inclines towards the casing bottom, a plurality of fan-shaped panels pass through the transition piece of bending will be the heliciform distribution after mutually splicing like this, then the liquid in the casing will follow the baffling board subassembly and flow from the casing top to the casing bottom.
Preferably, the second mounting plate is provided with a first through hole for inserting a fastener, the end face of the sector panel, which faces the second mounting plate, is provided with a threaded hole for mounting the fastener, and the fastener penetrates out of the first through hole and extends to be mounted in the threaded hole.
The second mounting plate is connected with the sector panel through a fastener, so that the installation is convenient; in assembly, the first through hole is aligned with the threaded hole, and then the fastener is installed in the threaded hole, so that the sector panel and the second mounting plate can be stably connected.
Preferably, the second mounting plate is provided with a plurality of first through holes distributed in a linear array, and the sector panel is provided with a plurality of threaded holes distributed in a linear array; each first through hole and each threaded hole are coaxially arranged and in one-to-one correspondence, and each first through hole is sequentially distributed along a straight line from low to high.
Through setting up a plurality of screw holes, and screw hole and first through-hole one-to-one, the screw hole is the linear type respectively, will exist inclination with the horizontal plane when fan-shaped panel is connected with the second mounting panel like this, installs at threaded hole through a plurality of fasteners, and the connection of second mounting panel and fan-shaped panel is more reliable like this, and fan-shaped panel can not take place relative rotation with the second mounting panel.
Preferably, the fan-shaped panel is provided with a plurality of guide holes which are uniformly distributed, and the heat exchange tubes are inserted into the guide holes; a plurality of pull rods for supporting are arranged between the two tube plates, and the pull rods are inserted into the fan-shaped panel; the fan-shaped panel is provided with a third mounting hole for inserting the pull rod, and the aperture of the third mounting hole is larger than that of the guide hole.
And a pull rod is further arranged between the two tube plates, the diameter of the pull rod is larger than that of the heat exchange tube, and the pull rod is also inserted on the fan-shaped panel, so that the fan-shaped panels are connected more stably. When the shell is excited, the fan-shaped panel has good vibration prevention effect, so that the damage of the heat exchange tube is avoided, the service life of the equipment is prolonged, and the maintenance cost is reduced.
Preferably, the shell is cylindrical, and the sector-shaped panels are spirally distributed around the central axis of the shell; the end face of the fan-shaped panel far away from the central axis is arranged adjacent to the inner wall of the shell, and a gap exists between the end face and the inner wall.
When a gap exists between the fan-shaped panel and the inner wall of the shell, the heat exchange tube bundle and the inner wall of the shell are in a gap, so that larger bypass flow exists in the shell, namely tangential flow of the inner wall of the shell, and leakage flow exists between the baffle plate assembly and the inner wall of the shell; the bypass flow and leakage flow reduce the flow rate of the liquid across the heat exchanger tube bundle, which reduces the heat exchange efficiency on the shell side walls.
Compared with the prior art, the utility model has the following beneficial effects: the utility model arranges the discontinuous spiral baffle plate component in the shell, and the baffle plate component comprises the sector panel and the bending transition piece, so that the processing and the assembly of the baffle plate component are more convenient. Before installation, holes are punched on the sector-shaped panels, then the sector-shaped panels are spliced together and installed in the shell, and then the heat exchange tube is installed, so that the processing cost is greatly reduced, and the structure is simple and reliable. The baffle plate component is in a discontinuous spiral shape, and the baffle plate with a spiral structure enables the medium to form vortex, and a large speed gradient is generated from the circle center to the radius direction, so that fluid in the heat exchange tube sub-table forms turbulence, and the boundary layer is thinned, thereby being beneficial to improving the heat exchange coefficient. Meanwhile, the fluid is effectively flushed, so that the deposition of dirt is reduced, the heat exchanger is in a high-efficiency running state for a long time, the heat exchange efficiency is high, and the energy is saved.
Drawings
FIG. 1 is a perspective view of the present utility model;
FIG. 2 is a perspective view of the hidden housing of the present utility model;
FIG. 3 is a schematic view of a plurality of sector panels of the present utility model being spliced to one another;
FIG. 4 is an exploded view of the baffle assembly;
FIG. 5 is an exploded view of another view of the baffle assembly;
fig. 6 is a perspective view of the baffle assembly as it is integrally spliced.
The marks in the figure: 1. a housing; 2. a material inlet; 3. a material outlet; 4. a heat exchange tube; 5. a tube sheet; 6. a baffle assembly; 61. a sector panel; 62. bending the transition piece; 63. a first mounting plate; 64. a second mounting plate; 7. a fastener; 8. a positioning pin; 9. a first mounting hole; 10. a second mounting hole; 11. a first through hole; 12. a threaded hole; 13. a guide hole; 14. a pull rod; 15. and a third mounting hole.
Detailed Description
The utility model is further described below with reference to embodiments shown in the drawings in which:
as shown in fig. 1 to 6, the embodiment discloses a spiral baffle heat exchanger, which comprises a shell 1, wherein a material inlet 2 and a material outlet 3 are arranged on the side surface of the shell 1, a plurality of uniformly distributed heat exchange tubes 4 are arranged in the shell 1, and tube plates 5 for fixing the heat exchange tubes 4 are respectively arranged at two ends of the shell 1; a plurality of baffle plate assemblies 6 which are spirally distributed are arranged between the two tube plates 5, and the heat exchange tubes 4 are simultaneously inserted into the tube plates 5 and the baffle plate assemblies 6; the baffle plate assembly 6 comprises a sector-shaped panel 61 and a bending transition piece 62, wherein the bending transition piece 62 for connecting any two sector-shaped panels 61 is arranged between any two sector-shaped panels 61; one end surface of the bending transition piece 62 is welded with the sector-shaped panel 61, and a fastener 7 for connecting the other end surface of the bending transition piece 62 and the sector-shaped panel 61 is arranged between the other end surface of the bending transition piece 62 and the sector-shaped panel 61; each sector-shaped panel 61 is mutually spliced in turn to form a baffle assembly 6 for changing the flow direction of the liquid, and the baffle assembly 6 is in a discontinuous spiral shape.
The bending transition piece 62 comprises a first mounting plate 63 and a second mounting plate 64, and the first mounting plate 63 and the second mounting plate 64 are mutually perpendicular; the first mounting plate 63 is welded to the sector plate 61, and the second mounting plate 64 is connected to the sector plate 61 by the fastener 7. A plurality of positioning pins 8 for positioning are arranged between the first mounting plate 63 and the sector-shaped panel 61, a first mounting hole 9 for mounting the positioning pins 8 is arranged on the end surface of the sector-shaped panel 61 facing the first mounting plate 63, and a second mounting hole 10 for mounting the positioning pins 8 is arranged on the end surface of the first mounting plate 63 facing the sector-shaped panel 61; each first mounting hole 9 corresponds to each second mounting hole 10 one by one, and the first mounting holes and the second mounting holes are coaxially arranged. The upper end surface of the first mounting plate 63 is on a horizontal plane, the side surface of the second mounting plate 64 is in a vertical plane, the upper end surface of the first mounting plate 63 and the side surface of the second mounting plate 64 are mutually perpendicular, and the sector panel 61 is mounted on the side surface of the second mounting plate 64; the side surface of the second mounting plate 64 is in a vertical plane, the sector panel 61 has an inclination angle with respect to the horizontal plane, the inclination angle of the sector panel 61 with respect to the horizontal plane ranges from 5 degrees to 10 degrees, and the sector panel 61 is inclined toward the bottom of the housing 1. The second mounting plate 64 is provided with a first through hole 11 for inserting the fastening piece 7, the end face of the sector-shaped panel 61 facing the second mounting plate 64 is provided with a threaded hole 12 for mounting the fastening piece 7, and the fastening piece 7 penetrates out of the first through hole 11 and extends to be mounted in the threaded hole 12. The second mounting plate 64 is provided with a plurality of first through holes 11 distributed in a linear array, and the sector panel 61 is provided with a plurality of threaded holes 12 distributed in a linear array; each first through hole 11 and each threaded hole 12 are coaxially arranged and in one-to-one correspondence, and each first through hole 11 is sequentially distributed along a straight line from low to high.
The fan-shaped panel 61 is provided with a plurality of guide holes 13 which are uniformly distributed, and the heat exchange tubes 4 are inserted into the guide holes 13; a plurality of pull rods 14 for supporting are arranged between the two tube plates 5, and the pull rods 14 are inserted into the sector-shaped panel 61; the fan-shaped panel 61 is provided with a third mounting hole 15 for inserting the pull rod 14, and the aperture of the third mounting hole 15 is larger than that of the guide hole 13. The shell 1 is cylindrical, and the sector-shaped panels 61 are spirally distributed around the central axis of the shell 1; the end surface of the fan-shaped panel 61 away from the central axis is disposed adjacent to the inner wall of the housing 1 with a gap therebetween.
The specific operation process of this embodiment is as follows, when the baffle plate assembly 6 needs to be assembled, all the fan-shaped panels 6 are spliced together in sequence; the first sector panel 6 near the top 1 of the shell is welded with the first mounting plate 63, and then the second mounting plate 64 is connected with the second sector panel 6 through the fastener 7; the above steps are then repeated such that all of the sector plates 6 are joined by the bent transition piece 62 to form a non-joined spiral baffle assembly 6; then the heat exchange tubes 4 are inserted into the guide holes 13, and the pull rods 14 are inserted into the third mounting holes 15; the first sector panel 6 near the top of the shell 1 is welded with the pull rod 14, and the last sector panel 6 near the bottom of the shell 1 is also welded with the pull rod 14; the heat exchange tubes 4 are respectively installed on the adjacent tube plates 5, and finally the tube plates 5 are installed in the shell 1, so that the installation process is simple and convenient. When the heat exchanger is needed, the heat exchange liquid is filled into the heat exchange tube 4 from other containers, so that the liquid flows in the heat exchange tube 4 and finally flows out of the heat exchange tube 4. The fluid medium is filled in the shell 1, flows in from the material inlet and outlet 2, flows downwards from the top along the baffle plate assembly 6 and finally flows out from the material outlet 3, so that the heat exchange of the liquid in the heat exchange tube 4 can be realized.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (8)
1. The spiral baffle heat exchanger comprises a shell (1), wherein a material inlet (2) and a material outlet (3) are arranged on the side face of the shell (1), a plurality of uniformly distributed heat exchange tubes (4) are arranged in the shell (1), and the spiral baffle heat exchanger is characterized in that tube plates (5) for fixing the heat exchange tubes (4) are respectively arranged at two ends of the shell (1); a plurality of baffle plate assemblies (6) which are spirally distributed are arranged between the two tube plates (5), and the heat exchange tubes (4) are simultaneously inserted in the tube plates (5) and the baffle plate assemblies (6); the baffle plate assembly (6) comprises fan-shaped panels (61) and bending transition pieces (62), wherein the bending transition pieces (62) for connecting any two fan-shaped panels (61) are arranged between any two fan-shaped panels; one end face of the bending transition piece (62) is welded with the sector-shaped panel (61), and a fastener (7) for connecting the other end face of the bending transition piece (62) and the sector-shaped panel (61) is arranged between the other end face of the bending transition piece and the sector-shaped panel; each fan-shaped panel (61) is mutually spliced in sequence to form a baffle plate assembly (6) for changing the flow direction of liquid, and the baffle plate assembly (6) is in a discontinuous spiral shape.
2. The spiral baffle heat exchanger according to claim 1, wherein the bent transition piece (62) comprises a first mounting plate (63) and a second mounting plate (64), the first mounting plate (63) and the second mounting plate (64) being disposed perpendicular to each other; the first mounting plate (63) is welded with the sector plate (61), and the second mounting plate (64) is connected with the sector plate (61) through a fastener (7).
3. The spiral baffle heat exchanger according to claim 2, wherein a plurality of positioning pins (8) for positioning are arranged between the first mounting plate (63) and the sector plate (61), a first mounting hole (9) for mounting the positioning pins (8) is arranged on the end surface of the sector plate (61) facing the first mounting plate (63), and a second mounting hole (10) for mounting the positioning pins (8) is arranged on the end surface of the first mounting plate (63) facing the sector plate (61); each first mounting hole (9) corresponds to each second mounting hole (10) one by one, and the first mounting holes and the second mounting holes are coaxially arranged.
4. The spiral baffle heat exchanger according to claim 2, wherein an upper end surface of the first mounting plate (63) is on a horizontal plane, a side surface of the second mounting plate (64) is on a vertical plane, the upper end surface of the first mounting plate (63) and the side surface of the second mounting plate (64) are arranged perpendicular to each other, and the sector plate (61) is mounted on the side surface of the second mounting plate (64); when the side surface of the second mounting plate (64) is positioned in a vertical plane, an inclination angle exists between the sector panel (61) and the horizontal plane, the inclination angle of the sector panel (61) and the horizontal plane ranges from 5 degrees to 10 degrees, and the sector panel (61) inclines towards the bottom of the shell (1).
5. The spiral baffle heat exchanger according to claim 4, wherein the second mounting plate (64) is provided with a first through hole (11) for inserting the fastener (7), the end surface of the fan-shaped panel (61) facing the second mounting plate (64) is provided with a threaded hole (12) for mounting the fastener (7), and the fastener (7) penetrates from the first through hole (11) and extends into the threaded hole (12).
6. The spiral baffle heat exchanger according to claim 5, wherein the second mounting plate (64) is provided with a plurality of first through holes (11) distributed in a linear array, and the sector-shaped panel (61) is provided with a plurality of threaded holes (12) distributed in a linear array; each first through hole (11) and each threaded hole (12) are arranged coaxially and correspond to each other one by one, and each first through hole (11) is distributed along a straight line in sequence from low to high.
7. The spiral baffle heat exchanger according to claim 1, wherein a plurality of evenly distributed guide holes (13) are formed in the fan-shaped panel (61), and the heat exchange tubes (4) are inserted into the guide holes (13); a plurality of pull rods (14) for supporting are arranged between the two tube plates (5), and the pull rods (14) are inserted on the sector-shaped panel (61); a third mounting hole (15) for inserting the pull rod (14) is formed in the fan-shaped panel (61), and the aperture of the third mounting hole (15) is larger than that of the guide hole (13).
8. The spiral baffle heat exchanger according to claim 1, wherein the housing (1) is cylindrical, the sector plates (61) being spirally distributed around a central axis of the housing (1); the end surface of the fan-shaped panel (61) far away from the central axis is arranged adjacent to the inner wall of the shell (1), and a gap exists between the end surface and the inner wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320593628.1U CN219368482U (en) | 2023-03-17 | 2023-03-17 | Spiral baffle heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320593628.1U CN219368482U (en) | 2023-03-17 | 2023-03-17 | Spiral baffle heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219368482U true CN219368482U (en) | 2023-07-18 |
Family
ID=87145993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320593628.1U Active CN219368482U (en) | 2023-03-17 | 2023-03-17 | Spiral baffle heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219368482U (en) |
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2023
- 2023-03-17 CN CN202320593628.1U patent/CN219368482U/en active Active
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