CN219995996U - Heat exchange tube fixing structure and heat exchanger - Google Patents
Heat exchange tube fixing structure and heat exchanger Download PDFInfo
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- CN219995996U CN219995996U CN202321552886.1U CN202321552886U CN219995996U CN 219995996 U CN219995996 U CN 219995996U CN 202321552886 U CN202321552886 U CN 202321552886U CN 219995996 U CN219995996 U CN 219995996U
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- heat exchange
- exchange tube
- tube
- ring
- fixing structure
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- 125000003003 spiro group Chemical group 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 11
- 238000009434 installation Methods 0.000 abstract description 9
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model provides a heat exchange tube fixing structure and a heat exchanger, and belongs to the technical field of heat exchange tube fixing and mounting. The heat exchange tube fixing structure includes a tube main body portion and a tube fixing portion. The pipe fitting main body part comprises heat exchange pipes and pipe plates, the pipe plates are provided with a plurality of groups of through holes, two ends of each heat exchange pipe respectively penetrate through the through holes on the two pipe plates, and external threads are arranged on the outer sides of the two ends of each heat exchange pipe; the pipe fitting fixing part comprises a positioning ring, an inner ring of the positioning ring is provided with an inner thread matched with the outer thread, two positioning rings are in threaded connection and are installed at two ends of the heat exchange pipe to fasten and fix a heat exchange pipe clamp between two pipe plates, and an outer ring of the positioning ring is provided with anti-skid grooves distributed at equal intervals. Compared with the prior art, the heat exchange tube fixing structure has the advantages that the damaged heat exchange tube is replaced in a welding fixing mode between the tube plate and the heat exchange tube, the heat exchange tube fixing structure is quicker and more convenient, and the installation is safer and more environment-friendly compared with the welding installation.
Description
Technical Field
The utility model relates to the technical field of heat exchange tube fixed installation, in particular to a heat exchange tube fixed structure and a heat exchanger.
Background
The heat exchanger plays an important role in chemical industry, petroleum, power, food and other industrial production, and can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in the chemical industry, so that the heat exchanger has wide application range.
In the prior art, a heat exchange tube in a heat exchanger is fixed on a tube plate in a mode of high-frequency welding fixed connection with the tube plate. The single heat exchange tube in the later heat exchanger can be inserted into the same size heat exchange tube after the heat exchange tube is cut and the mounting hole on the tube plate is polished if the single heat exchange tube is damaged, and the welded heat exchange tube can be continuously used, so that the tube plate and the heat exchange tube in the prior art are fixed in a welded mode, and are inconvenient to maintain and replace in the later stage.
Disclosure of Invention
In order to make up for the defects, the utility model provides a heat exchange tube fixing structure and a heat exchanger, and aims to solve the problem that in the prior art, a tube plate and a heat exchange tube are fixed in a welding mode at a later stage so as to be inconvenient to maintain and replace.
The utility model is realized in the following way:
the utility model provides a heat exchange tube fixing structure which comprises a tube main body part and a tube fixing part.
The pipe fitting main body part comprises heat exchange pipes and pipe plates, wherein a plurality of groups of through holes are formed in the pipe plates, two ends of each heat exchange pipe respectively penetrate through the through holes in the two pipe plates, and external threads are arranged on the outer sides of the two ends of each heat exchange pipe;
the pipe fitting fixing part comprises a positioning ring, an inner ring of the positioning ring is provided with an inner thread matched with the outer thread, two positioning rings are in threaded connection with each other, the two ends of the heat exchange pipe clamp the heat exchange pipe between the two pipe plates and fix the heat exchange pipe, and an outer ring of the positioning ring is provided with anti-skid grooves distributed at equal intervals.
In one embodiment of the utility model, a limiting ring is fixed on one side of the locating ring, which is close to the tube plate, and a limiting groove matched with the limiting ring is formed on one side of the tube plate, which is close to the locating ring.
In one embodiment of the utility model, an elastic washer is arranged on one side of the limiting ring away from the positioning ring.
In one embodiment of the utility model, a groove with an annular structure is formed on one side of the elastic washer away from the limiting ring.
In one embodiment of the utility model, the thickness of the elastic washer is 1.5 mm-2 mm.
In one embodiment of the utility model, the outer ring of the positioning ring is provided with a first small hole with a cylindrical structure.
In one embodiment of the utility model, the outer ring of the positioning ring is provided with a second small hole with a hexagonal prism-shaped structure.
The utility model also provides a heat exchanger comprising the heat exchange tube fixing structure and a heat exchanger shell.
The two tube plates are fixedly connected with flanges at two ends of the heat exchanger shell respectively.
The beneficial effects of the utility model are as follows: according to the heat exchange tube fixing structure and the heat exchanger, which are obtained through the design, when a single heat exchange tube is damaged, the locating rings at the two ends of the heat exchange tube are unscrewed to be taken out, and a new heat exchange tube is replaced and reinstalled between the two tube plates. Compared with the prior art, the heat exchange tube fixing structure has the advantages that the damaged heat exchange tube is replaced in a welding fixing mode between the tube plate and the heat exchange tube, the heat exchange tube fixing structure is quicker and more convenient, and the installation is safer and more environment-friendly compared with the welding installation.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a heat exchange tube fixing structure and a heat exchanger according to an embodiment of the present utility model;
FIG. 2 is a schematic view of a tube sheet according to an embodiment of the present utility model;
FIG. 3 is a schematic view of a part A of FIG. 2 in an enlarged partial structure according to an embodiment of the present utility model;
FIG. 4 is a schematic view of a heat exchange tube and tube fixing portion according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a pipe fitting fixing portion and a heat exchange pipe mounting structure according to an embodiment of the present utility model;
FIG. 6 is a schematic view of a pipe fixing portion according to an embodiment of the present utility model;
fig. 7 is a schematic structural diagram of a pipe fixing portion according to an embodiment of the present utility model.
In the figure: 10-a tube body portion; 110-heat exchange tubes; 120-tube sheet; 130-a through hole; 140-external threads; 150-a limit groove; 20-a tube fixing portion; 210-a positioning ring; 220-anti-skid grooves; 230-internal threads; 240-limiting rings; 250-elastic washers; 260-a first aperture; 270-second aperture.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1 to 7, the present utility model provides a heat exchange tube fixing structure, which includes a tube main body portion 10 and a tube fixing portion 20.
The pipe fixing portion 20 is used for installing the heat exchange pipes 110 in the pipe main body portion 10 and the pipe plates 120 in a threaded connection mode instead of a traditional welding mode, so that the damaged single heat exchange pipe 110 can be replaced quickly in the later period.
Referring to fig. 1-2 and 4-7, the tube body portion 10 includes heat exchange tubes 110 and tube sheets 120. The tube plates 120 are provided with a plurality of groups of through holes 130, two ends of the heat exchange tube 110 respectively penetrate through the through holes 130 on the two tube plates 120, and external threads 140 are arranged on the outer sides of the two ends of the heat exchange tube 110. The pipe fitting fixing portion 20 comprises a positioning ring 210, an inner ring of the positioning ring 210 is provided with an inner thread 230 matched with the outer thread 140, two positioning rings 210 are mounted at two ends of the heat exchange pipe 110 in a threaded connection mode to clamp and fix the heat exchange pipe 110 between the two pipe plates 120, and an outer ring of the positioning ring 210 is provided with anti-skid grooves 220 distributed at equal intervals.
External threads 140 are preset at the end parts of the heat exchange tubes 110, two ends respectively penetrate through the two groups of tube plates 120, and the heat exchange tubes 110 between the two groups of tube plates 120 are clamped and fixed by the end parts of the heat exchange tubes 110 in a mode of being connected with positioning rings 210 in a screwed mode. When a single heat exchange tube 110 is damaged, the positioning rings 210 at the two ends of the heat exchange tube 110 are unscrewed to take out and replace the new heat exchange tube 110, and the new heat exchange tube is reinstalled between the two tube plates 120. The anti-slip grooves 220 on the outer side of the positioning ring 210 increase friction force when rotating the positioning ring 210, so as to facilitate screwing or unscrewing the positioning ring 210. Compared with the original welding fixing mode adopted between the tube plate 120 and the heat exchange tube 110, the heat exchange tube fixing structure is more rapid and convenient to replace the damaged heat exchange tube 110, and the installation is safer and more environment-friendly compared with the welding installation.
In the above embodiment, referring to fig. 3, 6 and 7, a limiting ring 240 is fixed on one side of the positioning ring 210 close to the tube plate 120, a limiting groove 150 matched with the limiting ring 240 is formed on one side of the tube plate 120 close to the positioning ring 210, and the positioning ring 210 is more stably fixed at the end of the heat exchange tube 110 due to the positioning ring 240 and the limiting groove 150.
Further, referring to fig. 6 and 7, an elastic washer 250 is disposed on a side of the stop collar 240 away from the positioning collar 210, and the elastic washer 250 may be made of a rubber washer with good elasticity. The elastic washer 250 is provided with a groove with an annular structure at one side far away from the limit ring 240. The thickness of the elastic washer 250 is 1.5mm to 2mm. After the positioning ring 210 is screwed, the elastic washer 250 applies an elastic force to the outside, so that the screw connection of the positioning ring 210 and the heat exchange tube 110 is not easy to loose.
In a specific arrangement, referring to fig. 6 and 7, a first small hole 260 with a cylindrical structure is provided on the outer ring of the positioning ring 210, and the cylindrical first small hole 260 can be inserted into the first small hole 260 by using a cylindrical tool to rotate to increase the arm of force for rotating the positioning ring 210, so that screwing or dismounting the positioning ring 210 is easier. The outer ring of the positioning ring 210 is provided with a second small hole 270 with a hexagonal prism-shaped structure. As described above, the second small hole 270 of the hexagonal prism-shaped structure may be engaged with the socket wrench, and the positioning ring 210 may be more easily screwed or removed using the socket wrench.
The utility model also provides a heat exchanger comprising the heat exchange tube fixing structure and a heat exchanger shell.
The two tube plates 120 are fixedly connected with flanges at two ends of the heat exchanger shell respectively.
This heat exchange tube fixed knot constructs and heat exchanger's theory of operation: when in use, the end part of the heat exchange tube 110 is provided with external threads 140 in advance, two ends respectively penetrate through the two groups of tube plates 120, and the end part of the heat exchange tube 110 clamps and fixes the heat exchange tube 110 between the two groups of tube plates 120 in a mode of being connected with the positioning ring 210 in a threaded manner. When a single heat exchange tube 110 is damaged, the positioning rings 210 at the two ends of the heat exchange tube 110 are unscrewed to take out and replace the new heat exchange tube 110, and the new heat exchange tube is reinstalled between the two tube plates 120. The anti-slip grooves 220 on the outer side of the positioning ring 210 increase friction force when rotating the positioning ring 210, so as to facilitate screwing or unscrewing the positioning ring 210. Compared with the original welding fixing mode adopted between the tube plate 120 and the heat exchange tube 110, the heat exchange tube fixing structure is more rapid and convenient to replace the damaged heat exchange tube 110, and the installation is safer and more environment-friendly compared with the welding installation.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. A heat exchange tube fixing structure is characterized by comprising
The heat exchange tube comprises a tube body part (10), wherein the tube body part (10) comprises a heat exchange tube (110) and tube plates (120), a plurality of groups of through holes (130) are formed in the tube plates (120), two ends of the heat exchange tube (110) respectively penetrate through the through holes (130) in the two tube plates (120), and external threads (140) are formed on the outer sides of the two ends of the heat exchange tube (110);
the pipe fitting fixing part (20), pipe fitting fixing part (20) includes holding ring (210), holding ring (210) inner circle be provided with external screw thread (140) matched with internal screw thread (230), two holding ring (210) spiro union is installed heat exchange tube (110) both ends are with between two tube sheets (120) heat exchange tube (110) clamp fastening, holding ring (210) outer lane is provided with equidistant anti-skidding groove (220) that distribute.
2. The heat exchange tube fixing structure according to claim 1, wherein a limiting ring (240) is fixed on a side of the locating ring (210) close to the tube plate (120), and a limiting groove (150) matched with the limiting ring (240) is formed on a side of the tube plate (120) close to the locating ring (210).
3. A heat exchange tube fixing structure according to claim 2, wherein the side of the limiting ring (240) away from the positioning ring (210) is provided with an elastic washer (250).
4. A heat exchange tube fixing structure according to claim 3, wherein the elastic washer (250) is provided with a groove of annular structure on a side away from the limit ring (240).
5. A heat exchange tube fixing structure according to claim 3, wherein the thickness of the elastic washer (250) is 1.5mm to 2mm.
6. A heat exchange tube fixing structure according to claim 1, wherein the outer ring of the positioning ring (210) is provided with a first small hole (260) of cylindrical structure.
7. A heat exchange tube fixing structure according to claim 1, wherein the outer ring of the positioning ring (210) is provided with a second small hole (270) of hexagonal prism-like structure.
8. A heat exchanger comprising a heat exchange tube fixing structure as claimed in any one of claims 1 to 7 and
and the two tube plates (120) are fixedly connected with flanges at two ends of the heat exchanger shell respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321552886.1U CN219995996U (en) | 2023-06-19 | 2023-06-19 | Heat exchange tube fixing structure and heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321552886.1U CN219995996U (en) | 2023-06-19 | 2023-06-19 | Heat exchange tube fixing structure and heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219995996U true CN219995996U (en) | 2023-11-10 |
Family
ID=88608586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321552886.1U Active CN219995996U (en) | 2023-06-19 | 2023-06-19 | Heat exchange tube fixing structure and heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219995996U (en) |
-
2023
- 2023-06-19 CN CN202321552886.1U patent/CN219995996U/en active Active
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