CN212205793U - Prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure - Google Patents
Prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure Download PDFInfo
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- CN212205793U CN212205793U CN202020533352.4U CN202020533352U CN212205793U CN 212205793 U CN212205793 U CN 212205793U CN 202020533352 U CN202020533352 U CN 202020533352U CN 212205793 U CN212205793 U CN 212205793U
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Abstract
The utility model discloses a prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure, which comprises a metal tube plate, wherein a heat exchange tube mounting hole is arranged on the metal tube plate, and the inner wall of the heat exchange tube mounting hole is provided with threads which are screwed with the threads on the outer side of a metal support tube during installation; the upper surface and the lower surface of the metal tube plate are respectively covered with a layer of PTFE base plate, a heat exchange tube mounting hole on the metal tube plate penetrates through the upper PTFE base plate and the lower PTFE base plate, and a heat exchange tube is arranged in the heat exchange tube mounting hole. The utility model discloses need not tetrafluoro welding, save the cost of labor greatly, and adopt the metal expand tube mode to make the heat exchange tube stay tube fixed, fixed safer firm. The utility model discloses with the heat exchange tube prefabricated with the joint, available expand tube machinery batch production, only need during the installation the poling fixed can, easy operation, product quality is guaranteed, saves artifically.
Description
Technical Field
The utility model relates to a fluoroplastics heat exchange tube and tube sheet connection structure.
Background
The fixing mode of the traditional heat exchange tube and the tube plate is as follows: and (4) connecting the tetrafluoro pipe with a tetrafluoro base plate on the pipe plate by adopting tetrafluoro welding. The welding requirement is extremely high, the connecting surface is small, and the pipe is easy to fall off after long-term use. The fixing mode of the traditional heat exchange tube and the tube plate is as follows: the heat exchange tube and the tube plate are directly fixed by adopting a tube expansion mode. The heat exchange tube has the advantages that the groove needs to be formed in the mounting hole in the tube plate, machining precision is high, the thickness of the tube plate needs to be increased, the tube expansion is manually operated on the tube plate after the heat exchange tube is penetrated on the tube plate, operation difficulty is high, and quality is unstable.
Disclosure of Invention
An object of the utility model is to provide a fixed safe, easy operation's prefabricated joint formula fluoroplastics heat exchange tube and tube sheet connection structure.
The technical solution of the utility model is that:
the utility model provides a prefabricated joint formula fluoroplastics heat exchange tube and tube sheet connection structure, characterized by: the heat exchange tube comprises a metal tube plate, wherein a heat exchange tube mounting hole is formed in the metal tube plate, threads are arranged on the inner wall of the heat exchange tube mounting hole, and the heat exchange tube mounting hole and the threads on the outer side of a metal supporting tube are screwed during mounting; the upper surface and the lower surface of the metal tube plate are respectively covered with a layer of PTFE base plate, a heat exchange tube mounting hole on the metal tube plate penetrates through the upper PTFE base plate and the lower PTFE base plate, and a heat exchange tube is mounted in the heat exchange tube mounting hole;
the heat exchange tube is a prefabricated joint type fluoroplastic heat exchange tube and comprises a metal support tube, wherein threads are arranged on the outer side of the metal support tube, and an upper groove and a lower groove are formed in the inner wall of the metal support tube; a boss is formed on the upper edge of the metal supporting tube along the folded edge, and a sealing ring is arranged between the boss and the upper PTFE base plate;
the inner side of the metal supporting tube is provided with a tetrafluoro protection tube, the lower part of the tetrafluoro protection tube is longer than the metal supporting tube, and the upper edge of the tetrafluoro protection tube is tightly attached to a boss of the metal supporting tube;
the inner side of the polytetrafluoroethylene protection tube is provided with a fluoroplastic heat exchange tube, the upper edge of the fluoroplastic heat exchange tube is provided with a flanging which is tightly attached to the upper edge flanging of the polytetrafluoroethylene protection tube, and the bottom end of the fluoroplastic heat exchange tube is flanged for limiting and fixing the bottom;
the inner side of the fluoroplastic heat exchange tube is provided with a metal expansion tube, the upper edge of the fluoroplastic heat exchange tube and the upper edge of the tetrafluoro protection tube are wrapped by the flanging of the upper edge of the metal expansion tube, the lower edge of the metal expansion tube is shorter than the tetrafluoro protection tube and longer than the metal supporting tube, and the part longer than the metal supporting tube inclines inwards to ensure that the edge of the metal expansion tube does not touch the heat exchange tube;
a flat nut is screwed at the lower thread of the metal supporting tube, a plurality of symmetrical boosting holes are formed in the flat nut and used for screwing the nut during installation, and a sealing gasket is arranged between the flat nut and a lower Teflon base plate on the metal tube plate.
4 sealing rings which are uniformly distributed are arranged between the boss and the upper PTFE base plate; the flat nut is provided with four symmetrical power-assisted holes.
The utility model discloses need not tetrafluoro welding, save the cost of labor greatly, and adopt the metal expand tube mode to make the heat exchange tube stay tube fixed, fixed safer firm. The utility model discloses with the heat exchange tube prefabricated with the joint, available expand tube machinery batch production, only need during the installation the poling fixed can, easy operation, product quality is guaranteed, saves artifically.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
A prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure comprises a metal tube plate 7, wherein a heat exchange tube mounting hole is formed in the metal tube plate, threads are arranged on the inner wall of the heat exchange tube mounting hole, and the prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure are screwed with threads 1-1 on the outer side of a metal supporting tube during mounting; the upper surface and the lower surface of the metal tube plate are respectively covered with a layer of PTFE base plate 8 and a layer of PTFE base plate 9, a heat exchange tube mounting hole on the metal tube plate penetrates through the upper PTFE base plate and the lower PTFE base plate, and a heat exchange tube is arranged in the heat exchange tube mounting hole;
the heat exchange tube is a prefabricated joint type fluoroplastic heat exchange tube and comprises a metal support tube 1, wherein threads 1-1 are arranged on the outer side of the metal support tube, and upper grooves 1-2 and lower grooves 1-3 are formed in the inner wall of the metal support tube; a boss 1-4 is formed on the upper edge of the metal supporting tube along the folded edge, and a sealing ring 6 is arranged between the boss and the upper PTFE base plate;
the inner side of the metal supporting tube is provided with a tetrafluoro protection tube 2, the lower part of the tetrafluoro protection tube is longer than the metal supporting tube, and the upper edge of the tetrafluoro protection tube is tightly attached to a boss of the metal supporting tube along a flanging 2-1;
a fluoroplastic heat exchange tube 3 is arranged on the inner side of the polytetrafluoroethylene protection tube, a folded edge 3-1 is arranged on the upper edge of the fluoroplastic heat exchange tube and is tightly attached to a folded edge 2-1 on the upper edge of the polytetrafluoroethylene protection tube, and a folded edge 3-2 is arranged at the bottom end of the fluoroplastic heat exchange tube and is used for limiting and fixing the bottom;
the inner side of the fluoroplastic heat exchange tube is provided with a metal expansion tube 4, the upper edge of the fluoroplastic heat exchange tube and the upper edge of the tetrafluoro protection tube are wrapped by a metal expansion tube upper edge flanging 4-1, the lower edge of the metal expansion tube is shorter than the tetrafluoro protection tube and longer than the metal supporting tube, and the part longer than the metal supporting tube inclines inwards to ensure that the edge of the metal expansion tube does not touch the heat exchange tube;
a flat nut 5 is screwed at the lower thread of the metal supporting tube, a plurality of symmetrical boosting holes 5-1 are formed in the flat nut and used for screwing the nut during installation, and a sealing gasket 10 is arranged between the flat nut and a lower polytetrafluoroethylene base plate 9 on the metal tube plate;
when the prefabricated joint type fluoroplastic heat exchange tube is installed, the whole prefabricated joint type fluoroplastic heat exchange tube penetrates through a heat exchange tube installation hole, the flat nut is screwed towards the direction of the metal tube plate, and the prefabricated joint type fluoroplastic heat exchange tube is tightly sealed with the metal tube plate 7, the upper and lower PTFE base plates 8 and 9 and the sealing washer 10.
4 sealing rings which are uniformly distributed are arranged between the boss and the upper PTFE base plate; the flat nut is provided with four symmetrical power-assisted holes.
Claims (2)
1. The utility model provides a prefabricated joint formula fluoroplastics heat exchange tube and tube sheet connection structure, characterized by: the heat exchange tube comprises a metal tube plate, wherein a heat exchange tube mounting hole is formed in the metal tube plate, threads are arranged on the inner wall of the heat exchange tube mounting hole, and the heat exchange tube mounting hole and the threads on the outer side of a metal supporting tube are screwed during mounting; the upper surface and the lower surface of the metal tube plate are respectively covered with a layer of PTFE base plate, a heat exchange tube mounting hole on the metal tube plate penetrates through the upper PTFE base plate and the lower PTFE base plate, and a heat exchange tube is mounted in the heat exchange tube mounting hole;
the heat exchange tube is a prefabricated joint type fluoroplastic heat exchange tube and comprises a metal support tube, wherein threads are arranged on the outer side of the metal support tube, and an upper groove and a lower groove are formed in the inner wall of the metal support tube; a boss is formed on the upper edge of the metal supporting tube along the folded edge, and a sealing ring is arranged between the boss and the upper PTFE base plate;
the inner side of the metal supporting tube is provided with a tetrafluoro protection tube, the lower part of the tetrafluoro protection tube is longer than the metal supporting tube, and the upper edge of the tetrafluoro protection tube is tightly attached to a boss of the metal supporting tube;
the inner side of the polytetrafluoroethylene protection tube is provided with a fluoroplastic heat exchange tube, the upper edge of the fluoroplastic heat exchange tube is provided with a flanging which is tightly attached to the upper edge flanging of the polytetrafluoroethylene protection tube, and the bottom end of the fluoroplastic heat exchange tube is flanged for limiting and fixing the bottom;
the inner side of the fluoroplastic heat exchange tube is provided with a metal expansion tube, the upper edge of the fluoroplastic heat exchange tube and the upper edge of the tetrafluoro protection tube are wrapped by the flanging of the upper edge of the metal expansion tube, the lower edge of the metal expansion tube is shorter than the tetrafluoro protection tube and longer than the metal supporting tube, and the part longer than the metal supporting tube inclines inwards to ensure that the edge of the metal expansion tube does not touch the heat exchange tube;
a flat nut is screwed at the lower thread of the metal supporting tube, a plurality of symmetrical boosting holes are formed in the flat nut and used for screwing the nut during installation, and a sealing gasket is arranged between the flat nut and a lower Teflon base plate on the metal tube plate.
2. The connecting structure of the prefabricated joint type fluoroplastic heat exchange tube and the tube plate according to claim 1, which is characterized in that: 4 sealing rings which are uniformly distributed are arranged between the boss and the upper PTFE base plate; the flat nut is provided with four symmetrical power-assisted holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020533352.4U CN212205793U (en) | 2020-04-13 | 2020-04-13 | Prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020533352.4U CN212205793U (en) | 2020-04-13 | 2020-04-13 | Prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212205793U true CN212205793U (en) | 2020-12-22 |
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ID=73832162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020533352.4U Active CN212205793U (en) | 2020-04-13 | 2020-04-13 | Prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212205793U (en) |
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2020
- 2020-04-13 CN CN202020533352.4U patent/CN212205793U/en active Active
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