CN220670270U - Heat exchanger structure capable of reducing erosion and abrasion - Google Patents
Heat exchanger structure capable of reducing erosion and abrasion Download PDFInfo
- Publication number
- CN220670270U CN220670270U CN202322247684.2U CN202322247684U CN220670270U CN 220670270 U CN220670270 U CN 220670270U CN 202322247684 U CN202322247684 U CN 202322247684U CN 220670270 U CN220670270 U CN 220670270U
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- Prior art keywords
- tube
- hole
- plate
- heat exchange
- diameter
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- 230000003628 erosive effect Effects 0.000 title claims abstract description 23
- 238000005299 abrasion Methods 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 230000007704 transition Effects 0.000 claims description 6
- 238000011010 flushing procedure Methods 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 2
- 239000012530 fluid Substances 0.000 description 23
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a heat exchanger structure capable of reducing erosion and abrasion, which belongs to the technical field of chemical equipment, and comprises a tube plate, wherein a plurality of tube holes are formed in the tube plate, and heat exchange tubes are matched in the tube holes; the pipe hole is a step hole, one end of the pipe hole, which is close to the end socket, is a large-diameter hole, one end of the pipe hole, which is far away from the end socket, is a small-diameter hole, the diameter of the small-diameter hole is slightly larger than the outer diameter of the heat exchange pipe, and a step surface is arranged between the large-diameter hole and the small-diameter hole; the large-diameter Kong Naluo is connected with a screw sleeve, a sealing structure is arranged between the step surface and the screw sleeve, and the heat exchange tube extends out of the tube plate side close to the seal head through the small-diameter hole and the screw sleeve; the heat exchange tube comprises a heat exchange tube, a tube plate, a seal head, a tube plate, a heat exchange tube end and an anti-flushing plate, wherein the heat exchange tube end is provided with an anti-flushing plate tube hole, the anti-flushing plate is fixed between the seal head and the tube plate, and the anti-flushing plate is provided with the anti-flushing plate tube hole.
Description
Technical Field
The utility model relates to the technical field of chemical equipment, in particular to a heat exchanger structure capable of reducing erosion and abrasion.
Background
CN216790963U discloses a sealing structure of screw plug and tube plate of silicon carbide heat exchanger, the end of heat exchange tube is installed on tube plate, the heat exchange tube and tube plate are sealed by screw sleeve and sealing ring, the screw sleeve is connected with tube plate, the end of heat exchange tube is extended into screw sleeve. However, if the heat exchanger is applied to a process that the fluid contains a solid phase and is crystallized, the fluid at a certain flow rate carries the solid phase into the heat exchanger, which can cause erosion of components such as a tube plate and a sealing structure of the heat exchanger. The tube side seal head anticorrosive coating, tube plate anticorrosive coating and sealing structure of the silicon carbide heat exchanger have poor erosion resistance, the heat exchanger can be damaged in a short time, and the replacement and maintenance cost is very high.
In view of the problems of the prior art, the utility model combines the design and use experience of the related art for many years, and aided with the strong expertise, designs and manufactures a heat exchanger structure capable of reducing erosion and abrasion so as to overcome the defects.
Disclosure of Invention
For the problems in the prior art, the heat exchanger structure capable of reducing erosion and abrasion can effectively prevent fluid from eroding tube plates and screw sleeves.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the heat exchanger structure capable of reducing erosion and abrasion comprises a tube plate, wherein a plurality of tube holes are formed in the tube plate, and heat exchange tubes are matched in the tube holes;
the pipe hole is a step hole, one end of the pipe hole, which is close to the end socket, is a large-diameter hole, one end of the pipe hole, which is far away from the end socket, is a small-diameter hole, the diameter of the small-diameter hole is slightly larger than the outer diameter of the heat exchange pipe, and a step surface is arranged between the large-diameter hole and the small-diameter hole;
the large-diameter Kong Naluo is connected with a screw sleeve, a sealing structure is arranged between the step surface and the screw sleeve, and the heat exchange tube extends out of the tube plate side close to the seal head through the small-diameter hole and the screw sleeve;
the heat exchange tube further comprises an impact plate, the impact plate is fixed between the end socket and the tube plate, impact plate tube holes are formed in the impact plate, and the ends of the heat exchange tube are matched with the impact plate tube holes.
Preferably, the end of the heat exchange tube extends out of the impact plate.
Preferably, the length of the heat exchange tube extending out of the impact plate is 20mm-50mm.
Preferably, the gap between the tube holes of the impact plate and the heat exchange tube is 0.5mm-1mm.
Preferably, the sealing structure comprises a gasket and a sealing ring, and the gasket is positioned between the sealing ring and the screw sleeve.
Preferably, the sealing structure comprises a plurality of sealing rings, and gaskets are arranged between every two adjacent sealing rings.
Preferably, a threaded hole is formed in the large-diameter hole, a sealing unthreaded hole is formed between the threaded hole and the step surface, and the sealing structure is located in the sealing unthreaded hole.
Preferably, the diameter of the sealing unthreaded hole is smaller than that of the threaded hole, the diameter of the sealing unthreaded hole is larger than that of the small-diameter hole, and a transition inclined plane is arranged between the sealing unthreaded hole and the threaded hole.
Preferably, the distance between the transition inclined plane and the step surface is greater than or equal to the height of the sealing structure.
Preferably, the screw sleeve comprises a thread section provided with external threads, an assembly notch is arranged at the end, far away from the step surface, of the thread section, and the assembly notch can be matched with a tool to rotate the screw sleeve;
the thread section is close to the step face end and is provided with a circular ring section, the outer diameter of the circular ring section is smaller than that of the thread section, and the thickness of the circular ring section is greater than or equal to the width of the step face.
The utility model has the advantages that:
1. the anti-flushing plate can prevent fluid from directly impacting the tube plate and the screw sleeve, so that the fluid is effectively prevented from eroding the tube plate and the screw sleeve, and meanwhile, the anti-flushing plate can be disassembled and can be replaced immediately after being damaged.
2. The heat exchange tube extends out of the impact-resistant plate, and the fluid is high in strength and corrosion resistance and does not damage the end part of the heat exchange tube although the fluid preferably impacts the heat exchange tube.
3. According to the utility model, the heat exchange tube extends out of the impact plate, after the heat exchanger is filled with fluid, a fluid layer with a certain thickness is formed on the surface of the impact plate, and the fluid layer can reduce the flow velocity of the fluid, consume the impact force of the fluid and protect the impact plate.
4. The heat exchange tube extends out of the impact plate, and solids in the fluid can be accumulated at the contact position of the heat exchange tube and the impact plate to form a strong protective layer, so that the heat exchange tube has the same function as the impact plate and has a secondary protective effect on the impact plate.
Drawings
FIG. 1 is a schematic illustration of a heat exchanger configuration that reduces erosion and corrosion;
FIG. 2 is a schematic illustration of a single heat exchange tube of the present utility model positioned on a tube sheet;
FIG. 3 is a schematic diagram illustrating the cooperation of a heat exchange tube and a tube hole according to the present utility model;
FIG. 4 is a schematic view of the present utility model at a tube aperture;
FIG. 5 is a schematic view of a screw sleeve of the present utility model;
fig. 6 is a schematic view of a half-sectional structure of the screw sleeve of the present utility model.
In the figure: 1-tube plate, 2-end enclosure, 3-heat exchange tube, 4-impact plate, 5-screw sleeve, 6-sealing structure, 11-tube hole, 12-small diameter hole, 13-sealing unthreaded hole, 14-transition inclined plane, 15-threaded hole, 16-chamfer, 51-threaded section, 52-assembly notch and 53-circular ring section.
Detailed Description
The present utility model is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
As shown in fig. 1 to 6, a heat exchanger structure capable of reducing erosion and abrasion comprises a tube plate 1, wherein the surface of the tube plate 1 can be subjected to corrosion-resistant treatment such as mould pressing PTFE, FEP, PFA, or the tube plate 1 is directly made of a PTFE plate, so that the service life of the tube plate 1 is ensured.
Specifically, the pipe hole 11 is set as a step hole, one end of the pipe hole 11 close to the end enclosure 2 is set as a large-diameter hole, one end of the pipe hole 11 far away from the end enclosure 2 is set as a small-diameter hole 12, the diameter of the small-diameter hole 12 is slightly larger than the outer diameter of the heat exchange pipe 3, a step surface is arranged between the large-diameter hole and the small-diameter hole 12, the large diameter Kong Naluo is connected with the threaded sleeve 5, the diameter of the internal channel of the threaded sleeve 5 is consistent, the heat exchange pipe 3 can pass through the threaded sleeve 5, the end face of the threaded sleeve 5 close to the end enclosure 2 is not higher than the end face of the pipe plate 1, a sealing structure 6 is arranged between the step surface and the threaded sleeve 5, the heat exchange pipe 3 extends out from the side of the pipe plate 1 close to the end enclosure 2 through the small-diameter hole 12 and the threaded sleeve 5, and the length of the heat exchange pipe 3 extending out of the pipe plate 1 is preferably 50mm-100mm.
The heat exchange tube further comprises an impact plate 4, the impact plate 4 is fixed between the sealing head 2 and the tube plate 1, impact plate tube holes are formed in the impact plate 4, and the end parts of the heat exchange tubes 3 are matched with the impact plate tube holes.
The anti-flushing plate 4 can prevent fluid from directly impacting the tube plate 1 and the screw sleeve 5, effectively prevent the fluid from flushing the tube plate 1 and the screw sleeve 5, and simultaneously, the anti-flushing plate 4 can be disassembled and can be replaced immediately after being damaged.
The end part of the heat exchange tube 3 preferably extends out of the impact plate 4, and the length of the heat exchange tube 3 extending out of the impact plate 4 is preferably 20-50 mm, so that the fluid is high in strength and corrosion resistance and does not damage the end part of the heat exchange tube 3 even though the fluid preferably impacts the heat exchange tube 3. And the heat exchange tube 3 stretches out the impact plate 4, after the heat exchanger is filled with fluid, a fluid layer with a certain thickness can be formed on the surface of the impact plate 4, the fluid layer can reduce the fluid flow rate, consume the fluid impact force, protect the impact plate 4 and prolong the service life of the impact plate 4.
The clearance between the pipe hole of the impact plate and the heat exchange pipe 3 is 0.5mm-1mm, normal installation of the pipe bundle is ensured, solids in fluid can be accumulated at the contact position of the heat exchange pipe 3 and the impact plate 4 to form a strong protective layer, the protective layer plays the same role as the impact plate 4, and the protective layer plays a secondary protective role on the impact plate 4.
The sealing structure 6 of the utility model comprises a gasket and a sealing ring, wherein the gasket is positioned between the sealing ring and the screw sleeve 5 and used for protecting the sealing ring from damage, the sealing structure 6 can comprise a plurality of sealing rings, the adjacent sealing rings are provided with gasket protection sealing rings, and the sealing structure 6 is tightly pressed by the screw sleeve 5, so that the sealing between the heat exchange tube 3 and the tube plate 1 is realized.
Be equipped with screw hole 15 in the major diameter hole, screw hole 15 upper end is established to chamfer 16, makes things convenient for the screw thread tapping assembly, is equipped with sealed unthreaded hole 13 between screw hole 15 and the step face, and seal structure 6 is arranged in sealed unthreaded hole 13, and sealed unthreaded hole 13 diameter is less than screw hole 15 diameter, and sealed unthreaded hole 13 diameter is greater than minor diameter hole 12 diameter, is equipped with transition inclined plane 14 between sealed unthreaded hole 13 and the screw hole 15, and distance a between transition inclined plane 14 and the step face is greater than or equal to seal structure 6's height b.
The threaded sleeve 5 comprises a threaded section 51 provided with external threads, an assembly notch 52 is formed in the end, far away from a step surface, of the threaded section 51, the assembly notch 52 can be matched with a tool to rotate the threaded sleeve 5, a circular ring section 53 is arranged at the end, close to the step surface, of the threaded section 51, the outer diameter of the circular ring section 53 is smaller than that of the threaded section 51, and the thickness c of the circular ring section 53 is smaller than or equal to the width d of the step surface.
Specific mounting procedure
The heat exchange tube 3 passes through the tube plate 1, the heat exchange tube 3 extends out of the tube plate by 150mm-100mm, then a sealing ring, a gasket and a threaded sleeve 5 are sequentially arranged in a tube hole 11 of the tube plate 1 to form a whole set of sealing structure 6, the threaded sleeve 5 is rotated, the gasket and the sealing ring are pushed to the step surface of the tube hole 11 and are pressed while being in threaded connection with the tube hole 11, the threaded sleeve 5 fixes the sealing ring and the gasket, the sealing structure 6 enables the heat exchange tube 3 to be fixed with the tube plate 1, then a buffer plate 4 passes through the heat exchange tube 3 and is placed on the surface of the tube plate 1, and the end part of the heat exchange tube 3 extends out of the buffer plate 4; finally, the seal head 2 is installed to clamp the impact plate 4 between the seal head 2 and the tube plate 1.
The material enters the inside of the seal head 2 through the connecting pipe of the seal head 2, then flows to the surface of the impact plate 4, and after the surface of the impact plate 4 is full of the material, the material enters the heat exchange pipe 3 for heat exchange.
It should be understood that these examples are for the purpose of illustrating the utility model only and are not intended to limit the scope of the utility model. Furthermore, it is to be understood that various changes, modifications and/or variations may be made by those skilled in the art after reading the technical content of the present utility model, and that all such equivalents are intended to fall within the scope of protection defined in the claims appended hereto.
Claims (10)
1. The heat exchanger structure capable of reducing erosion and abrasion is characterized by comprising a tube plate (1), wherein a plurality of tube holes (11) are formed in the tube plate (1), and heat exchange tubes (3) are matched in the tube holes (11);
the heat exchange tube comprises a heat exchange tube (3), and is characterized in that the tube hole (11) is arranged as a step hole, one end of the tube hole (11) close to the end socket (2) is arranged as a large-diameter hole, one end of the tube hole (11) far away from the end socket (2) is arranged as a small-diameter hole (12), the diameter of the small-diameter hole (12) is slightly larger than the outer diameter of the heat exchange tube (3), and a step surface is arranged between the large-diameter hole and the small-diameter hole (12);
the large diameter Kong Naluo is connected with a screw sleeve (5), a sealing structure (6) is arranged between the step surface and the screw sleeve (5), and the heat exchange tube (3) extends out of the side of the tube plate (1) close to the seal head (2) through the small diameter hole (12) and the screw sleeve (5);
the heat exchange tube comprises a tube plate (1), and is characterized by further comprising a shock-proof plate (4), wherein the shock-proof plate (4) is fixed between the end socket (2) and the tube plate (1), shock-proof plate tube holes are formed in the shock-proof plate (4), and the end part of the heat exchange tube (3) is matched with the shock-proof plate tube holes.
2. A heat exchanger structure with reduced erosion and abrasion according to claim 1, characterized in that the heat exchanger tube (3) ends extend beyond the impingement plate (4).
3. A heat exchanger structure with reduced erosion and abrasion according to claim 2, characterized in that the heat exchange tubes (3) extend over the impingement plate (4) by a length of 20-50 mm.
4. A heat exchanger structure with reduced erosion and abrasion according to claim 1 or 2, wherein the clearance between the impingement plate tube holes and the heat exchange tube (3) is 0.5mm-1mm.
5. A heat exchanger structure with reduced erosion and abrasion according to claim 1 or 2, characterized in that the sealing structure (6) comprises a gasket and a sealing ring, the gasket being located between the sealing ring and the screw sleeve (5).
6. A heat exchanger structure with reduced erosion and abrasion according to claim 5, wherein the sealing structure (6) comprises a plurality of sealing rings, between each of which a gasket is arranged.
7. A heat exchanger structure capable of reducing erosion and abrasion according to claim 1 or 2, wherein a threaded hole (15) is provided in the large-diameter hole, a sealing unthreaded hole (13) is provided between the threaded hole (15) and the step surface, and the sealing structure (6) is located in the sealing unthreaded hole (13).
8. The heat exchanger structure capable of reducing erosion and abrasion according to claim 7, wherein the diameter of the sealing unthreaded hole (13) is smaller than that of the threaded hole (15), the diameter of the sealing unthreaded hole (13) is larger than that of the small-diameter hole (12), and a transition inclined plane (14) is arranged between the sealing unthreaded hole (13) and the threaded hole (15).
9. A heat exchanger structure with reduced erosion and abrasion according to claim 8, wherein the distance between the transition bevel (14) and the step surface is equal to or greater than the height of the sealing structure (6).
10. A heat exchanger structure capable of reducing erosion and abrasion according to claim 1 or 2, wherein the screw sleeve (5) comprises a thread section (51) provided with external threads, an assembly notch (52) is arranged at the end of the thread section (51) far away from the step surface, and the assembly notch (52) can be matched with a tool to rotate the screw sleeve (5);
the thread section (51) is provided with a circular ring section (53) close to the step surface end, the outer diameter of the circular ring section (53) is smaller than that of the thread section (51), and the thickness of the circular ring section (53) is smaller than or equal to the width of the step surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322247684.2U CN220670270U (en) | 2023-08-21 | 2023-08-21 | Heat exchanger structure capable of reducing erosion and abrasion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322247684.2U CN220670270U (en) | 2023-08-21 | 2023-08-21 | Heat exchanger structure capable of reducing erosion and abrasion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220670270U true CN220670270U (en) | 2024-03-26 |
Family
ID=90327460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322247684.2U Active CN220670270U (en) | 2023-08-21 | 2023-08-21 | Heat exchanger structure capable of reducing erosion and abrasion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220670270U (en) |
-
2023
- 2023-08-21 CN CN202322247684.2U patent/CN220670270U/en active Active
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