CN214792675U - Connecting structure of tube plate and heat exchange tube of water cooler of top reduction supercharger - Google Patents
Connecting structure of tube plate and heat exchange tube of water cooler of top reduction supercharger Download PDFInfo
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- CN214792675U CN214792675U CN202121226351.6U CN202121226351U CN214792675U CN 214792675 U CN214792675 U CN 214792675U CN 202121226351 U CN202121226351 U CN 202121226351U CN 214792675 U CN214792675 U CN 214792675U
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- tube
- heat exchange
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- plate
- tube plate
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 230000009467 reduction Effects 0.000 title abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 12
- 238000003466 welding Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009469 supplementation Effects 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a connecting structure of a water cooler tube plate and a heat exchange tube of a top reduction supercharger, which comprises a tube plate and a heat exchange tube which is arranged in a mounting hole on the tube plate in a penetrating way, wherein a cylindrical boss is arranged on the tube plate, the outer ring of the boss is provided with a thread, and the mounting hole and the boss are coaxially arranged; a nut is in threaded connection with the boss, a cylindrical pipe is coaxially connected with the nut in a penetrating manner, and the outer diameter of the cylindrical pipe is matched with the inner diameter of the heat exchange pipe; the length of the cylindrical tube is larger than the thickness of the tube plate. The heat exchange tube penetrates through a mounting hole in the tube plate, the cylindrical tube on the nut is inserted into the heat exchange tube, and the nut is in threaded connection with the boss and is screwed up to complete mounting. The installation mode of the heat exchange tube is simple and quick, and the installation efficiency is high; the welding step is omitted, and the heat exchange tube is prevented from being heated and bulging; the length of the cylindrical pipe is larger than the thickness of the pipe plate, so that the heat exchange pipe can be continuously used even if being corroded and perforated, and the service life of the device is prolonged.
Description
Technical Field
The utility model relates to a heat exchange field, concretely relates to mounting structure of heat exchange tube.
Background
The tube plate is a round steel bar which is drilled with holes slightly larger than the outer diameter of the tube and plays a role in fixing the tube and sealing media in the heat exchanger. A fitting which functions by fixing a pipe by piercing and welding.
When the tube plate is connected with the heat exchange tube, the tube wall of the heat exchange tube is tightly attached to the wall of the tube plate through hole by adopting a mechanical expansion joint or hydraulic expansion joint method, then a water test is carried out, and finally the end part of the heat exchange tube is connected with the end part of the tube plate through hole by using a welding method. However, water exists in the interlayer between the heat exchange tube and the tube plate, when the interlayer is welded, the water is input by external heat, the water is vaporized into steam, pressure is applied to the outer wall of the heat exchange tube, and the applied stress exceeds the allowable stress of the material of the heat exchange tube at the tube wall thinning part of the edge area of the expansion tube, so that bulges are generated. Once the bulge occurs, the entire heat exchange tube is scrapped, which increases the cost.
The heat exchange of the cooler is realized by heat transfer through the temperature difference of the tube shell side medium. In the refining industry, there are various corrosive substances in the shell-side medium, and under the action of load and temperature during use, these media can permeate into the tube sheet holes along the gaps between the tubes and the tube sheets. The cold side and the hot side of the heat exchanger are alternately changed in the running process, and the internal medium is in the cyclic process of supplement and evaporation, so that the concentration of the medium in the gap is continuously increased. Thereby causing the occurrence of gap corrosion and causing the perforation and local corrosion of the heat exchange tube of the tube plate auxiliary alarm.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a connection structure of subtracting water cooler tube sheet of top booster and heat exchange tube, its process that can sparingly install the heat exchange tube improves efficiency, is difficult to be corroded and perforates, can also prevent the bulge phenomenon of heat exchange tube.
The utility model discloses a following technical scheme realizes:
a connecting structure of a tube plate and a heat exchange tube of a water cooler of a top reduction supercharger comprises the tube plate and the heat exchange tube which is arranged in a mounting hole in the tube plate in a penetrating way, wherein a cylindrical boss is arranged on the tube plate, the outer ring of the boss is provided with a thread, and the mounting hole penetrates through the boss and is arranged coaxially with the boss; a nut is in threaded connection with the boss, a cylindrical pipe is coaxially connected with the nut in a penetrating manner, and the outer diameter of the cylindrical pipe is matched with the inner diameter of the heat exchange pipe; the length of the cylindrical tube is larger than the thickness of the tube plate.
Further: the end face of the boss is carved with a first annular groove, and a convex block matched with the first groove is arranged on the contact surface of the nut and the end face of the boss.
Further: an elastic sealing element is arranged in the first groove in a cushioning mode.
Further: the screw thread edge of the nut extends to the end face of the tube plate, and a mounting lug plate is arranged on the mounting face of the nut and the tube plate.
Further: and an annular second groove is formed in the mounting lug plate and the tube plate mounting surface, and an elastic sealing element is arranged in the second groove.
Compared with the prior art, the utility model have following advantage:
firstly, a heat exchange tube penetrates through a mounting hole in the tube plate, then a cylindrical tube on a nut is inserted into the heat exchange tube, and the nut is in threaded connection with a boss and is screwed up to complete the installation. The installation mode of the heat exchange tube is simple and quick, and the installation efficiency is high.
And secondly, a welding step is omitted, and the heat exchange tube is prevented from being heated and bulging.
When the gap corrosion occurs between the tube plate and the heat exchange tube, a layer of cylindrical tube is arranged in the heat exchange tube, the length of the cylindrical tube is larger than the thickness of the tube plate, the heat exchange tube can be continuously used even if the heat exchange tube is corroded and perforated, and the service life of the device is prolonged.
And fourthly, the first groove is matched with the lug on the nut, so that the sealing performance between the lug and the nut is improved.
Fifthly, the contact area of the installation lug plate in contact with the end face of the tube plate on the nut is increased, and the installation stability of the nut is improved.
And elastic sealing elements at the first groove and the second groove improve the installation sealing property between the screw cap and the tube plate.
Drawings
FIG. 1 is a schematic view of a half-section of the structure of the present invention;
FIG. 2 is a half-sectional view of the nut;
FIG. 3 is a schematic half-section view of a single mounting hole in a tube sheet.
In the figure: 1. a tube sheet; 1.1, a boss; 1.2, a first groove; 2. a heat exchange pipe; 3. a nut; 3.1, a cylindrical pipe; 3.2, bumps; 3.3, mounting an ear plate; 3.4, a second groove; 4.1, a flat gasket; 5. an O-shaped sealing gasket.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
A connecting structure of a tube plate and a heat exchange tube of a water cooler of a top reduction supercharger comprises a tube plate 1 and a heat exchange tube 2 which is arranged in a mounting hole in the tube plate 1 in a penetrating manner, wherein a cylindrical boss 1.1 is arranged on the tube plate 1, the outer ring of the boss 1.1 is provided with a thread, and the mounting hole penetrates through the boss 1.1 and is coaxial with the boss 1.1; a nut 3 is in threaded connection with the boss 1.1, a cylindrical pipe 3.1 is coaxially connected with the nut 3 in a penetrating way, and the outer diameter of the cylindrical pipe 3.1 is matched with the inner diameter of the heat exchange pipe 2; the length of the cylindrical tube 3.1 is larger than the thickness of the tube plate 1. An annular first groove 1.2 is carved on the end face of the boss 1.1, and a convex block matched with the first groove 1.2 is arranged on the contact surface of the nut 3 and the end face of the boss 1.1. A flat gasket 4.1 is padded in the first groove 1.2. The screw cap 3 extends to the end face of the tube plate along the thread, and a mounting lug plate 3.3 is arranged on the mounting face of the screw cap and the tube plate 1. An annular second groove 3.4 is formed in the contact surface of the mounting lug plate 3.3 and the tube plate 1, and an O-shaped sealing gasket 4.2 is arranged in the second groove 3.4.
The utility model discloses when using: the heat exchange tube 2 is inserted into the mounting hole of the tube plate 1 in a penetrating manner, the cylindrical tube 3.1 on the screw cap 3 is inserted into the heat exchange tube 2, and finally the screw cap 3 is screwed down and mounted on the tube plate 1 through the threads on the boss 1.1, so that the heat exchange tube 2 is mounted in the tube plate 1. The first groove 1.2 is matched with the lug on the screw cap 3, and a flat gasket 4.1 is filled in the first groove 1.2 to increase the sealing property between the screw cap 3 and the tube plate 1; likewise, the second groove 1.4 and the O-ring seal 4.2 in the second groove 1.4 further increase the sealing between the screw cap 3 and the tube plate 1.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (5)
1. The utility model provides a connection structure of subtract water cooler tube sheet of top booster and heat exchange tube, includes tube sheet (1) and runs through heat exchange tube (2) of installing in the mounting hole on tube sheet (1), its characterized in that: a cylindrical boss (1.1) is arranged on the tube plate (1), threads are arranged on the outer ring of the boss (1.1), and a mounting hole penetrates through the boss (1.1) and is coaxial with the boss (1.1);
a nut (3) is in threaded connection with the boss (1.1), a cylindrical pipe (3.1) is coaxially connected with the nut (3) in a penetrating way, and the outer diameter of the cylindrical pipe (3.1) is matched with the inner diameter of the heat exchange pipe (2); the length of the cylindrical tube (3.1) is larger than the thickness of the tube plate (1).
2. The connecting structure of the water cooler tube plate and the heat exchange tube of the reduced-roof supercharger according to claim 1, characterized in that: the end face of the boss (1.1) is provided with a first annular groove (1.2), and a lug (3.2) matched with the first groove (1.2) is arranged on the face of the nut (3) in contact with the end face of the boss (1.1).
3. The connecting structure of the water cooler tube plate and the heat exchange tube of the reduced-roof supercharger as claimed in claim 2, characterized in that: an elastic sealing element is filled in the first groove (1.2).
4. The connecting structure of the water cooler tube plate and the heat exchange tube of the reduced-roof supercharger according to claim 1, characterized in that: the screw cap (3) extends to the end face of the tube plate (1) along the thread edge, and an installation lug plate (3.3) is arranged on the installation face of the screw cap and the tube plate (1).
5. The connecting structure of the water cooler tube plate and the heat exchange tube of the reduced-roof supercharger as claimed in claim 4, wherein: and an annular second groove (3.4) is arranged on the mounting surface of the mounting lug plate (3.3) and the tube plate (1), and an elastic sealing element is arranged in the second groove (3.4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121226351.6U CN214792675U (en) | 2021-06-03 | 2021-06-03 | Connecting structure of tube plate and heat exchange tube of water cooler of top reduction supercharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121226351.6U CN214792675U (en) | 2021-06-03 | 2021-06-03 | Connecting structure of tube plate and heat exchange tube of water cooler of top reduction supercharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214792675U true CN214792675U (en) | 2021-11-19 |
Family
ID=78700521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121226351.6U Active CN214792675U (en) | 2021-06-03 | 2021-06-03 | Connecting structure of tube plate and heat exchange tube of water cooler of top reduction supercharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214792675U (en) |
-
2021
- 2021-06-03 CN CN202121226351.6U patent/CN214792675U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 223001 No.40, Chengxi Road, qingjiangpu District, Huai'an City, Jiangsu Province Patentee after: Jiangsu Kesheng Intelligent Equipment Co.,Ltd. Patentee after: HUAIYIN INSTITUTE OF TECHNOLOGY Address before: 223001 No.40, Chengxi Road, qingjiangpu District, Huai'an City, Jiangsu Province Patentee before: JIANGSU KESHENG CHEMICAL MACHINERY Co.,Ltd. Patentee before: HUAIYIN INSTITUTE OF TECHNOLOGY |