CN105822854A - Connecting structure of non-metallic pipe and metal plate - Google Patents
Connecting structure of non-metallic pipe and metal plate Download PDFInfo
- Publication number
- CN105822854A CN105822854A CN201610373485.8A CN201610373485A CN105822854A CN 105822854 A CN105822854 A CN 105822854A CN 201610373485 A CN201610373485 A CN 201610373485A CN 105822854 A CN105822854 A CN 105822854A
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- CN
- China
- Prior art keywords
- metallic
- metallic pipe
- attachment structure
- pipe
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/14—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
- F16L13/147—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by radially expanding the inner part
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
- F16L13/007—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints specially adapted for joining pipes of dissimilar materials
Abstract
The invention discloses a connecting structure of a non-metallic pipe and a metal plate; and the connecting structure can realize connection between the non-metallic pipe and a hole in the metal plate by a connecting mode of a concave cavity and internal extrusion without needing chemical bonding, and is stable and reliable. The connecting structure is more suitable for connection of a fluorine-contained plastic pipe with high chemical stability and the metal plate, can be effectively applied to sealing connection between a heat exchange pipe of a heat exchanger and a metal pattern plate under the working conditions of high temperature and high corrosion, can save the cost, greatly improves the sealing strength, and prolongs the equipment service life.
Description
Technical field
The present invention relates to the interconnection technique field of non-metallic pipe and metallic plate, more particularly, it relates to a kind of non-metallic pipe and the attachment structure of metallic plate.
Background technology
PTFE (politef) tubing has excellent high-low temperature resistant characteristic, can life-time service under conditions of-190～260 DEG C.PTFE material has fluorine steam under good chemical stability, only high temperature, and under alkali metal, performance can change, and does not reacts other all of inorganic Organic Acid and Base dense, dilute, ester.Low surface friction coefficient, water repellent, refuse dirt, not dirty inside and outside tube wall.Nontoxic, the feature such as nonflammable, there is the high grade of transparency, be widely used in the field such as fluoroplastics heat exchanger, heat steam pipe arrangement, tool has been widely used.
But, as high performance plastics, PTFE cannot melt extrude, and also is difficult to splice mutually with other materials (such as metal material) or keeps during slitless connection the highest intensity due to the property of material.
Such as, at some heat exchangers under high temperature, high corrosive environment, the PTFE tube material using PTFE tube material to make needs to be secured firmly on metal card, and positive confinement to be kept.At present, the most conventional encapsulating method is to be wrapped up by metal card by flanging process and welding procedure by PTFE sheet material, thus forms an entirety, then will be welded on the PTFE sheet material after parcel by same welding procedure after PTFE tube material flange.Using this technique, PTFE tube cannot directly be connected to a fixed with metal card, needs by twice welding, not only complex procedures and also cost of labor is high.It addition, intensity only has 30～about 50kg, along with long high temperature and vibration when running, intensity it is difficult to ensure that, thus cause weld to come off, affect service life.It is thus possible, for instance the nonmetallic materials such as PTFE are connected in the high intensity with metal card, seal the difficult problem becoming its application of restriction, in the urgent need to having been resolved.
Summary of the invention
For drawbacks described above present in prior art, it is an object of the invention to provide the attachment structure of a kind of non-metallic pipe and metallic plate, it is possible to realize being effectively connected between two kinds of unlike material things of non-metallic pipe and metallic plate.
For achieving the above object, the present invention adopts the following technical scheme that
A kind of non-metallic pipe and the attachment structure of metallic plate, including metallic plate and non-metallic pipe, installing hole is had on metallic plate, and be sheathed on non-metallic pipe, it is characterized in that: on described installing hole inwall, have cavity, the tube wall of described non-metallic pipe and cavity corresponding position is by being compressed in cavity, to form the attachment structure with metallic plate.
Described cavity is groove or shrinkage pool.
Described groove is annular recess or segmental arc groove, and the radial section of groove is rectangular, circular, oval, trapezoidal or T-shaped.
Described shrinkage pool is circular hole, conical bore, trapezoidal hole, rectangular opening, threaded hole or T-shaped hole.
The inner surface of described cavity is additionally provided with screw thread.
Also including fixing cylinder, fixing cylinder is located in non-metallic pipe, and fixing cylinder is compressed in cavity together with the tube wall of non-metallic pipe with the barrel of cavity corresponding position.
Also including the sealing plate being located at metal sheet surface, have the flanging bore corresponding with installing hole on sealing plate, the flange of flanging bore surrounding is placed between installing hole and non-metallic pipe, and is compressed in cavity together with the tube wall of non-metallic pipe.
Described non-metallic pipe uses high temperature resistant, resistant material making.
Described non-metallic pipe uses fluoro-containing plastic to make.
Described non-metallic pipe uses PTFE, FEP, PFA or PVDF to make.
The non-metallic pipe of the present invention and the attachment structure of metallic plate, use the connected mode of cavity and interior extruding, it is not necessary to chemical bonding can realize non-metallic pipe and the connection of perforate on metallic plate, and attachment structure is stable, reliably.It is especially suitable for the connection of the high fluoro-containing plastic pipe of particularly chemical stability and metallic plate.Being tightly connected between heat exchanger tube and the metal card of the heat exchanger under such as high temperature, high corrosive conditions can be efficiently applied to, be not only able to cost-effective, but also greatly improve sealing intensity, extend the service life of equipment.
Accompanying drawing explanation
Fig. 1 is the structural representation of attachment structure one embodiment of the present invention；
Fig. 2 is the structural representation (the fixing cylinder of band) of another embodiment of the attachment structure of the present invention；
Fig. 3 is the structural representation (carrying upper and lower sealing plate) of the 3rd embodiment of the attachment structure of the present invention；
Fig. 4 is the structural representation that the attachment structure of the present invention is applied to shell heat exchanger；
Fig. 5 is the A portion enlarged diagram in Fig. 4.
Detailed description of the invention
Technical scheme is further illustrated below in conjunction with the accompanying drawings with embodiment.
Incorporated by reference to shown in Fig. 1 to Fig. 3, a kind of non-metallic pipe provided by the present invention and the attachment structure of metallic plate, including metallic plate 1 and non-metallic pipe 2, installing hole is had on metallic plate 1, and be sheathed on non-metallic pipe 2, having cavity 3 on described installing hole inwall, described non-metallic pipe 2 and the tube wall of cavity 3 corresponding position are by being compressed in cavity 3, to form the attachment structure with metallic plate 1.Extruding can use in using in pipe the mode expanded to carry out outwardly against (dotted arrow in see figure).
Above-mentioned non-metallic pipe 2 can use high temperature resistant, resistant material making.It is also preferred that the left described non-metallic pipe 2 can use the fluoro-containing plastics such as PTFE, FEP, PFA or PVDF such as to make.It is of course also possible to use other high temperature resistant, resistant material making.
As an embodiment, described cavity 3 is groove or shrinkage pool or other form structure.
Described groove can use annular recess or segmental arc groove, and the radial section of groove is rectangular, circular, oval, trapezoidal or other shape.Further, annular recess can be one, it is also possible to two or more for along installing hole axial distribution.Segmental arc groove can be one or more, multiple can be distributed at installing hole spaced radial, it is also possible to is axially uniformly distributed at installing hole.
Described shrinkage pool can use circular hole, conical bore, trapezoidal hole, rectangular opening, threaded hole or other shapes of hole, can be uniformly distributed radially and/or axially.
It addition, the inner surface of described cavity 3 is also provided with screw thread, when the tube wall of non-metallic pipe 2 is squeezed into, threaded engagement can be formed with screw thread so that connecting the most firm, anticreep is better.
As an embodiment, this attachment structure also includes that fixing cylinder 4, fixing cylinder 4 are located in non-metallic pipe 2, and fixing cylinder 4 is compressed in cavity 3 together with the tube wall of non-metallic pipe 2 with the barrel of cavity 3 corresponding position.
Described fixing cylinder 4 is metal material, after the crimp of metal material, it is possible to avoid the bounce-back of non-metallic pipe 2 tube wall, strengthens and connects effect.It is also preferred that the left described fixing cylinder 4 uses stainless steel material, there is the most corrosion-resistant, resistance to elevated temperatures.
Additionally, described non-metallic pipe 2 one end can pass installing hole and formation is turned over all over structure (see 21 in Fig. 5), and the one end fixing cylinder 4 can pass non-metallic pipe 2 and formation is turned over all over structure (see 41 in Fig. 5), can be more beneficial for improving axial connection reliability all over structure by turning over.
As an embodiment, this attachment structure also includes the sealing plate 5 being located at metallic plate 1 surface, having the flanging bore corresponding with installing hole on sealing plate 5, the flange 51 of flanging bore surrounding is placed between installing hole and non-metallic pipe 2, and is compressed in together with the tube wall of non-metallic pipe 2 in cavity 3.
Described sealing plate 5 can use one, is located at the upper or lower surface of metallic plate 1, it would however also be possible to employ two, is respectively arranged on the upper and lower surface of metallic plate 1.
Above-mentioned sealing plate 5 can use high temperature resistant, resistant material making.It is also preferred that the left described sealing plate 5 can use the fluoro-containing plastics such as PTFE, FEP, PFA or PVDF such as to make.It is of course also possible to use other by high temperature resistant, resistant material system.Use by sealing plate 5, it is possible to the attachment structure of the present invention is played one and more seals, more stable effect.
Shown in Fig. 4, Fig. 5 is that the attachment structure of the present invention is applied to the attachment structure between the heat exchanger tube of shell heat exchanger and metal card, in Fig. 5, the cavity 3 of upper and lower two loop grooves it is provided with in installing hole, use upper and lower two sealing plates 4, the non-metallic pipe 2 of the fluorine material turned over time and the rustless steel turned over time is used to fix cylinder 4, by interior pressurized expansion, clamp-on cavity 3 together, to realize being tightly connected.
In sum, use non-metallic pipe 2 and the attachment structure of metallic plate 1 of the present invention, have several advantages that
1, propose a kind of physical connection mode being conducive to and being connected between non-metallic pipe 2 with metallic plate 1, it is not necessary to chemical bonding, be suitable to the high non-metallic pipe of chemical stability 2 and be connected with the effective of metallic plate 1；
2, by arranging the fixing cylinder 4 of metal, it is possible to advantageously in non-metallic pipe 2 and the stable connection of metallic plate 1, firm, it is to avoid get loose.
3, by arranging sealing plate 5, it is possible to the attachment structure of the present invention is played effective sealing function, it is adaptable to the duty requirements that some seal requests are high.
4, by using the tubing of fluoro-containing plastic, it is applicable to the heat exchanger tube of the heat transmission equipments such as such as shell-and-tube heat exchanger, to realize the connection difficult problem between heat exchanger tube and metal card, not only increases effect that is fixing and that seal, but also extend the service life of equipment.
Those of ordinary skill in the art will be appreciated that, above embodiment is intended merely to the present invention is described, and it is not used as limitation of the invention, as long as in the spirit of the present invention, change, the modification of embodiment described above all will be fallen in the range of claims of the present invention.
Claims (10)
1. a non-metallic pipe and the attachment structure of metallic plate, including metallic plate and non-metallic pipe, installing hole is had on metallic plate, and be sheathed on non-metallic pipe, it is characterized in that: on described installing hole inwall, have cavity, the tube wall of described non-metallic pipe and cavity corresponding position is by being compressed in cavity, to form the attachment structure with metallic plate.
A kind of non-metallic pipe the most as claimed in claim 1 and the attachment structure of metallic plate, it is characterised in that: described cavity is groove or shrinkage pool.
A kind of non-metallic pipe the most as claimed in claim 2 and the attachment structure of metallic plate, it is characterised in that: described groove is annular recess or segmental arc groove, and the radial section of groove is rectangular, circular, oval, trapezoidal or T-shaped.
A kind of non-metallic pipe the most as claimed in claim 2 and the attachment structure of metallic plate, it is characterised in that: described shrinkage pool is circular hole, conical bore, trapezoidal hole, rectangular opening, threaded hole or T-shaped hole.
5. a kind of non-metallic pipe as described in claim 3 or 4 and the attachment structure of metallic plate, it is characterised in that: the inner surface of described cavity is additionally provided with screw thread.
A kind of non-metallic pipe the most as claimed in claim 1 and the attachment structure of metallic plate, it is characterised in that: also including fixing cylinder, fixing cylinder is located in non-metallic pipe, and fixing cylinder is compressed in cavity together with the tube wall of non-metallic pipe with the barrel of cavity corresponding position.
7. a kind of non-metallic pipe as described in claim 1 or 6 and the attachment structure of metallic plate, it is characterized in that: also include being located at the sealing plate of metal sheet surface, the flanging bore corresponding with installing hole is had on sealing plate, the flange of flanging bore surrounding is placed between installing hole and non-metallic pipe, and is compressed in cavity together with the tube wall of non-metallic pipe.
A kind of non-metallic pipe the most as claimed in claim 1 and the attachment structure of metallic plate, it is characterised in that: described non-metallic pipe uses high temperature resistant, resistant material making.
A kind of non-metallic pipe the most as claimed in claim 8 and the attachment structure of metallic plate, it is characterised in that: described non-metallic pipe uses fluoro-containing plastic to make.
A kind of non-metallic pipe the most as claimed in claim 9 and the attachment structure of metallic plate, it is characterised in that: described non-metallic pipe uses PTFE, FEP, PFA or PVDF to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373485.8A CN105822854A (en) | 2016-05-31 | 2016-05-31 | Connecting structure of non-metallic pipe and metal plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610373485.8A CN105822854A (en) | 2016-05-31 | 2016-05-31 | Connecting structure of non-metallic pipe and metal plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105822854A true CN105822854A (en) | 2016-08-03 |
Family
ID=56531707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610373485.8A Pending CN105822854A (en) | 2016-05-31 | 2016-05-31 | Connecting structure of non-metallic pipe and metal plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105822854A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107081589A (en) * | 2017-06-23 | 2017-08-22 | 康为同创集团有限公司 | Drum-shaped tooth type shaft coupling corrugated tube end press-loading device |
| CN111288834A (en) * | 2020-04-13 | 2020-06-16 | 御隆膜科技南通有限公司 | Prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure and installation method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB597011A (en) * | 1945-08-08 | 1948-01-15 | Plastic Res Engineering Divisi | Grommet |
| US5472243A (en) * | 1994-05-17 | 1995-12-05 | Reynolds Metals Company | Fluted tube joint |
| CN203298648U (en) * | 2013-05-15 | 2013-11-20 | 中石化洛阳工程有限公司 | Polytetrafluoroethylene tube type air preheater |
| CN204630446U (en) * | 2015-03-11 | 2015-09-09 | 北京中电科荟热力技术有限公司 | A kind of mounting structure of flue gas heat-exchange unit |
| CN205078970U (en) * | 2015-11-04 | 2016-03-09 | 浙江新昌同一汽车部件有限公司 | Vehicle air conditioner system pipeline bell and plain end joint head |
| CN205781508U (en) * | 2016-05-31 | 2016-12-07 | 江苏金由新材料有限公司 | A kind of non-metallic pipe and the attachment structure of metallic plate |
-
2016
- 2016-05-31 CN CN201610373485.8A patent/CN105822854A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB597011A (en) * | 1945-08-08 | 1948-01-15 | Plastic Res Engineering Divisi | Grommet |
| US5472243A (en) * | 1994-05-17 | 1995-12-05 | Reynolds Metals Company | Fluted tube joint |
| CN203298648U (en) * | 2013-05-15 | 2013-11-20 | 中石化洛阳工程有限公司 | Polytetrafluoroethylene tube type air preheater |
| CN204630446U (en) * | 2015-03-11 | 2015-09-09 | 北京中电科荟热力技术有限公司 | A kind of mounting structure of flue gas heat-exchange unit |
| CN205078970U (en) * | 2015-11-04 | 2016-03-09 | 浙江新昌同一汽车部件有限公司 | Vehicle air conditioner system pipeline bell and plain end joint head |
| CN205781508U (en) * | 2016-05-31 | 2016-12-07 | 江苏金由新材料有限公司 | A kind of non-metallic pipe and the attachment structure of metallic plate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107081589A (en) * | 2017-06-23 | 2017-08-22 | 康为同创集团有限公司 | Drum-shaped tooth type shaft coupling corrugated tube end press-loading device |
| CN111288834A (en) * | 2020-04-13 | 2020-06-16 | 御隆膜科技南通有限公司 | Prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure and installation method |
| CN111288834B (en) * | 2020-04-13 | 2021-08-31 | 御隆膜科技南通有限公司 | Prefabricated joint type fluoroplastic heat exchange tube and tube plate connecting structure and installation method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160803 |