CN111486741A - Connecting structure of prefabricated joint type fluoroplastic heat exchange tube and tube plate and installation method thereof - Google Patents
Connecting structure of prefabricated joint type fluoroplastic heat exchange tube and tube plate and installation method thereof Download PDFInfo
- Publication number
- CN111486741A CN111486741A CN202010323044.3A CN202010323044A CN111486741A CN 111486741 A CN111486741 A CN 111486741A CN 202010323044 A CN202010323044 A CN 202010323044A CN 111486741 A CN111486741 A CN 111486741A
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- China
- Prior art keywords
- heat exchange
- exchange tube
- joint
- tube
- plate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
- B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/06—Constructions of heat-exchange apparatus characterised by the selection of particular materials of plastics material
- F28F21/067—Details
Abstract
The invention discloses a connecting structure of a prefabricated joint type fluoroplastic heat exchange tube and a tube plate and an installation method thereof, wherein the connecting structure comprises a metal tube plate, and a heat exchange tube installation hole is formed in the metal tube plate; the upper surface and the lower surface of the metal tube plate are respectively covered with a layer of PTFE base plate, and the upper layer of PTFE base plate and the lower layer of PTFE base plate are respectively in a downward upper layer folding edge form and a downward lower layer folding edge form at the mounting hole of the heat exchange tube; the heat exchange tube mounting hole on the metal tube plate penetrates through the upper and lower PTFE base plates, and the heat exchange tube is mounted in the heat exchange tube mounting hole. The invention does not need PTFE welding, greatly saves labor cost, and adopts a metal tube expansion mode to fix the heat exchange tube supporting tube, so that the fixation is safer and firmer. The invention prefabricates the heat exchange tubes and the joints, can be produced in batch by using a tube expanding machine, only needs to penetrate the tubes for fixing during installation, has simple operation, ensures the product quality and saves labor.
Description
Technical Field
The invention relates to a connecting structure of a prefabricated joint type fluoroplastic heat exchange tube and a tube plate and an installation method thereof.
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
The invention aims to provide a connection structure of a prefabricated joint type fluoroplastic heat exchange tube and a tube plate, which is safe to fix and simple to operate, and an installation method of the connection structure.
The technical solution of the invention is as follows:
the utility model provides a connection structure of prefabricated joint formula fluoroplastics heat exchange tube and tube sheet which characterized in that: the heat exchange tube comprises a metal tube plate, wherein a heat exchange tube mounting hole is formed in the metal tube plate; the upper surface and the lower surface of the metal tube plate are respectively covered with a layer of PTFE base plate, and the upper layer of PTFE base plate and the lower layer of PTFE base plate are respectively in a downward upper layer folding edge form and a downward lower layer folding edge form at the mounting hole of the heat exchange tube; a heat exchange tube mounting hole on the metal tube plate penetrates through the upper polytetrafluoroethylene base plate and the lower polytetrafluoroethylene base plate, and a heat exchange tube is mounted in the heat exchange tube mounting hole;
the heat exchange tube is a prefabricated fluoroplastic heat exchange tube with a joint and comprises a polytetrafluoroethylene heat exchange tube, the upper part of the polytetrafluoroethylene heat exchange tube is provided with the joint, and the heat exchange tube and the joint are connected into a firm whole in a melting, welding or gluing mode; the upper part of the joint is provided with a plurality of evenly distributed power-assisted holes for positioning and fixing during installation; the inner diameter of the joint is the same as the outer diameter of the heat exchange tube, and the outer diameter of the joint is the same as the diameter of the heat exchange tube mounting hole; the upper edge of the joint is provided with a boss, and the diameter of the boss is larger than that of the heat exchange tube mounting hole; the bottom end of the heat exchange tube is provided with a flange for limiting and fixing the bottom;
when the prefabricated heat exchange tube with the joint is installed, the whole prefabricated heat exchange tube with the joint penetrates through the tube plate installation hole, and the upper layer folded edge and the lower layer folded edge are tightly attached to the joint for sealing.
The material of the joint is polytetrafluoroethylene, PFA or vinylidene fluoride.
The joint of the upper part of the heat exchange tube is provided with a check groove, and the lower layer of folded edge is clamped into the check groove for fixation during installation.
The installation method of the connecting structure of the prefabricated joint type fluoroplastic heat exchange tube and the tube plate is characterized by comprising the following steps of: the connecting structure comprises a metal tube plate, and a heat exchange tube mounting hole is formed in the metal tube plate; the upper surface and the lower surface of the metal tube plate are respectively covered with a layer of PTFE base plate, and the upper layer of PTFE base plate and the lower layer of PTFE base plate are respectively in a downward upper layer folding edge form and a downward lower layer folding edge form at the mounting hole of the heat exchange tube; a heat exchange tube mounting hole on the metal tube plate penetrates through the upper polytetrafluoroethylene base plate and the lower polytetrafluoroethylene base plate, and a heat exchange tube is mounted in the heat exchange tube mounting hole;
the heat exchange tube is a prefabricated fluoroplastic heat exchange tube with a joint and comprises a polytetrafluoroethylene heat exchange tube, the upper part of the polytetrafluoroethylene heat exchange tube is provided with the joint, and the heat exchange tube and the joint are connected into a firm whole in a melting, welding or gluing mode; the upper part of the joint is provided with a plurality of evenly distributed power-assisted holes for positioning and fixing during installation; the inner diameter of the joint is the same as the outer diameter of the heat exchange tube, and the outer diameter of the joint is the same as the diameter of the heat exchange tube mounting hole; the upper edge of the joint is provided with a boss, and the diameter of the boss is larger than that of the heat exchange tube mounting hole; the bottom end of the heat exchange tube is provided with a flange for limiting and fixing the bottom;
when the prefabricated heat exchange tube with the joint is installed, the whole prefabricated heat exchange tube with the joint penetrates through the tube plate installation hole, and the upper layer folded edge and the lower layer folded edge are tightly attached to the joint for sealing.
The invention does not need PTFE welding, greatly saves labor cost, and adopts a metal tube expansion mode to fix the heat exchange tube supporting tube, so that the fixation is safer and firmer. The invention prefabricates the heat exchange tubes and the joints, can be produced in batch by using a tube expanding machine, only needs to penetrate the tubes for fixing during installation, has simple operation, ensures the product quality and saves labor.
Drawings
The invention is further illustrated by the following figures and examples.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
A connection structure of a prefabricated joint type fluoroplastic heat exchange tube and a tube plate comprises a metal tube plate 2, wherein a heat exchange tube mounting hole is formed in the metal tube plate; the upper surface and the lower surface of the metal tube plate are respectively covered with a layer of PTFE base plate 3 and 4, and the upper layer of PTFE base plate and the lower layer of PTFE base plate are respectively in a downward upper layer folding edge 3-1 form and a downward lower layer folding edge 4-1 form at the mounting hole of the heat exchange tube; a heat exchange tube mounting hole on the metal tube plate penetrates through the upper polytetrafluoroethylene base plate and the lower polytetrafluoroethylene base plate, and a heat exchange tube 1 is mounted in the heat exchange tube mounting hole;
the heat exchange tube is a prefabricated fluoroplastic heat exchange tube with a joint and comprises a polytetrafluoroethylene heat exchange tube, the upper part of the polytetrafluoroethylene heat exchange tube is provided with a joint 1-2, and the heat exchange tube and the joint are connected into a firm whole in a melting, welding or gluing mode; the upper part of the joint is provided with a plurality of evenly distributed power-assisted holes 1-3 which are used for positioning and fixing during installation; the inner diameter of the joint is the same as the outer diameter of the heat exchange tube, and the outer diameter of the joint is the same as the diameter of the heat exchange tube mounting hole; the upper edge of the joint is provided with bosses 1-4, and the diameters of the bosses are larger than the diameters of the heat exchange tube mounting holes; the bottom end of the heat exchange tube is provided with a flange 1-5 for limiting and fixing the bottom;
when the prefabricated heat exchange tube with the joint is installed, the whole prefabricated heat exchange tube with the joint penetrates through the tube plate installation hole, and the upper layer hem and the lower layer hem are tightly attached to the joint for sealing. The joint of the upper part of the heat exchange tube is provided with a check groove, and the lower layer of folded edge is clamped into the check groove 1-1 for fixation during installation.
The material of the joint is polytetrafluoroethylene, PFA or vinylidene fluoride.
Claims (4)
1. The utility model provides a connection structure of prefabricated joint formula fluoroplastics heat exchange tube and tube sheet which characterized in that: the heat exchange tube comprises a metal tube plate, wherein a heat exchange tube mounting hole is formed in the metal tube plate; the upper surface and the lower surface of the metal tube plate are respectively covered with a layer of PTFE base plate, and the upper layer of PTFE base plate and the lower layer of PTFE base plate are respectively in a downward upper layer folding edge form and a downward lower layer folding edge form at the mounting hole of the heat exchange tube; a heat exchange tube mounting hole on the metal tube plate penetrates through the upper polytetrafluoroethylene base plate and the lower polytetrafluoroethylene base plate, and a heat exchange tube is mounted in the heat exchange tube mounting hole;
the heat exchange tube is a prefabricated fluoroplastic heat exchange tube with a joint and comprises a polytetrafluoroethylene heat exchange tube, the upper part of the polytetrafluoroethylene heat exchange tube is provided with the joint, and the heat exchange tube and the joint are connected into a firm whole in a melting, welding or gluing mode; the upper part of the joint is provided with a plurality of evenly distributed power-assisted holes for positioning and fixing during installation; the inner diameter of the joint is the same as the outer diameter of the heat exchange tube, and the outer diameter of the joint is the same as the diameter of the heat exchange tube mounting hole; the upper edge of the joint is provided with a boss, and the diameter of the boss is larger than that of the heat exchange tube mounting hole; the bottom end of the heat exchange tube is provided with a flange for limiting and fixing the bottom;
when the prefabricated heat exchange tube with the joint is installed, the whole prefabricated heat exchange tube with the joint penetrates through the tube plate installation hole, and the upper layer folded edge and the lower layer folded edge are tightly attached to the joint for sealing.
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: the material of the joint is polytetrafluoroethylene, PFA or vinylidene fluoride.
3. The connecting structure of the prefabricated joint type fluoroplastic heat exchange tube and the tube plate according to claim 1 or 2, characterized in that: the joint of the upper part of the heat exchange tube is provided with a check groove, and the lower layer of folded edge is clamped into the check groove for fixation during installation.
4. A method for installing a connection structure of a prefabricated joint type fluoroplastic heat exchange tube and a tube plate according to claim 1, which is characterized in that: the connecting structure comprises a metal tube plate, and a heat exchange tube mounting hole is formed in the metal tube plate; the upper surface and the lower surface of the metal tube plate are respectively covered with a layer of PTFE base plate, and the upper layer of PTFE base plate and the lower layer of PTFE base plate are respectively in a downward upper layer folding edge form and a downward lower layer folding edge form at the mounting hole of the heat exchange tube; a heat exchange tube mounting hole on the metal tube plate penetrates through the upper polytetrafluoroethylene base plate and the lower polytetrafluoroethylene base plate, and a heat exchange tube is mounted in the heat exchange tube mounting hole;
the heat exchange tube is a prefabricated fluoroplastic heat exchange tube with a joint and comprises a polytetrafluoroethylene heat exchange tube, the upper part of the polytetrafluoroethylene heat exchange tube is provided with the joint, and the heat exchange tube and the joint are connected into a firm whole in a melting, welding or gluing mode; the upper part of the joint is provided with a plurality of evenly distributed power-assisted holes for positioning and fixing during installation; the inner diameter of the joint is the same as the outer diameter of the heat exchange tube, and the outer diameter of the joint is the same as the diameter of the heat exchange tube mounting hole; the upper edge of the joint is provided with a boss, and the diameter of the boss is larger than that of the heat exchange tube mounting hole; the bottom end of the heat exchange tube is provided with a flange for limiting and fixing the bottom;
when the prefabricated heat exchange tube with the joint is installed, the whole prefabricated heat exchange tube with the joint penetrates through the tube plate installation hole, and the upper layer folded edge and the lower layer folded edge are tightly attached to the joint for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323044.3A CN111486741A (en) | 2020-04-22 | 2020-04-22 | Connecting structure of prefabricated joint type fluoroplastic heat exchange tube and tube plate and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010323044.3A CN111486741A (en) | 2020-04-22 | 2020-04-22 | Connecting structure of prefabricated joint type fluoroplastic heat exchange tube and tube plate and installation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111486741A true CN111486741A (en) | 2020-08-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010323044.3A Withdrawn CN111486741A (en) | 2020-04-22 | 2020-04-22 | Connecting structure of prefabricated joint type fluoroplastic heat exchange tube and tube plate and installation method thereof |
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| Country | Link |
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| CN (1) | CN111486741A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202853459U (en) * | 2012-09-07 | 2013-04-03 | 沃斯坦热力技术（北京）有限公司 | Top plate of tubular gas-to-gas heat exchanger |
| CN205561620U (en) * | 2016-01-29 | 2016-09-07 | 浙江东氟塑料科技有限公司 | Roof connection structure of heat exchange tube |
| CN206787369U (en) * | 2017-04-28 | 2017-12-22 | 上海金由氟材料股份有限公司 | PTFE tube ends fixed structure in a kind of heat exchanger |
| CN108507238A (en) * | 2018-03-12 | 2018-09-07 | 孔瑞清 | evaporator and its application in heat pump unit |
| CN212378590U (en) * | 2020-04-22 | 2021-01-19 | 御隆膜科技南通有限公司 | Connecting structure of prefabricated joint type fluoroplastic heat exchange tube and tube plate |
-
2020
- 2020-04-22 CN CN202010323044.3A patent/CN111486741A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202853459U (en) * | 2012-09-07 | 2013-04-03 | 沃斯坦热力技术（北京）有限公司 | Top plate of tubular gas-to-gas heat exchanger |
| CN205561620U (en) * | 2016-01-29 | 2016-09-07 | 浙江东氟塑料科技有限公司 | Roof connection structure of heat exchange tube |
| CN206787369U (en) * | 2017-04-28 | 2017-12-22 | 上海金由氟材料股份有限公司 | PTFE tube ends fixed structure in a kind of heat exchanger |
| CN108507238A (en) * | 2018-03-12 | 2018-09-07 | 孔瑞清 | evaporator and its application in heat pump unit |
| CN212378590U (en) * | 2020-04-22 | 2021-01-19 | 御隆膜科技南通有限公司 | Connecting structure of prefabricated joint type fluoroplastic heat exchange tube and tube plate |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200804 |
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| WW01 | Invention patent application withdrawn after publication |