CN203687741U - Connecting structure for heat exchange tubes and tube plate of heat exchanger - Google Patents
Connecting structure for heat exchange tubes and tube plate of heat exchanger Download PDFInfo
- Publication number
- CN203687741U CN203687741U CN201320800633.1U CN201320800633U CN203687741U CN 203687741 U CN203687741 U CN 203687741U CN 201320800633 U CN201320800633 U CN 201320800633U CN 203687741 U CN203687741 U CN 203687741U
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- China
- Prior art keywords
- tube
- heat exchanger
- tube sheet
- fluoroplastics
- clamping sleeve
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The utility model provides a connecting structure for heat exchange tubes and a tube plate of a heat exchanger. The connecting structure comprises the tube plate, compressing sleeves, fluorine plastic heat exchange tubes and a fixing plate, wherein tube holes are formed in the tube plate; chamfers are arranged on the edges of the tube holes; the fluorine plastic heat exchange tubes penetrate through the tube holes in the tube plate; one ends of the fluorine plastic heat exchange tubes are expanded to form expanded openings matched with the chamfers on the edges of tube holes; the fixing plate is pressed on the tube plate; holes corresponding to the tube holes of the tube plate are formed in the fixing plate; the fixing plate is connected with the tube plate via fasteners; end heads matched with the expanded holes of the fluorine plastic heat exchange tubes are arranged at one ends of the hollow compressing sleeves; the compressing sleeves penetrate into the holes in the fixing plate and connected with the inner wall of the opening, the other end of the compressing sleeve is inserted into the expanded opening of the fluorine plastic heat exchange tube, and the fluorine plastic heat exchange tubes are tightly pressed on the tube plate by the compressing sleeves. The connecting structure is good in sealing effect, simple and easy in connection manner, relatively flexible in requirements on materials such as tube plates, and is convenient to dismount, mount and replace.
Description
Technical field
The utility model relates to heat transmission equipment, especially a kind of teflon heat exchanger.
Background technology
Fluoroplastics have the performances such as excellent dielectric properties and resistance to chemical attack, high-low temperature resistant, waterproof, sticky, low-friction coefficient, good self lubricity.It is the ideal material of making the heat exchanger of being able to bear strong corrosion.But because the thermal conductivity factor of this material is little, therefore all kinds of teflon heat exchanger heat exchanger tubes have all been selected minor diameter (being generally less than φ 6mm) light-wall pipe (thickness of pipe wall 0.3～0.5mm), therefore heat exchanger tube quantity is very big, owing to all having adopted fluoroplastics heat exchanger tube and being connected of tube sheet the fusion of heat expansion method; Fusion face between heat exchanger tube and the tube sheet of the fusion of heat expansion method is very narrow, and it is unreliable therefore to connect.Because heat exchanger tube quantity is very big, tube pitch is minimum simultaneously, and a large amount of fluoroplastics heat exchanger tubes and tube sheet fusion have increased again the difficulty of fusion, make to fuse into power and greatly reduce, and heat exchanger tube and tube sheet are very easily thrown off, and finally have influence on the quality and performance of heat exchanger.
Summary of the invention
For the deficiencies in the prior art, the utility model provides the syndeton of a kind of heat exchanger heat-exchanging tube and tube sheet, and connected mode is simple, reliable, and good sealing effect.The technical solution adopted in the utility model is:
A syndeton for heat exchanger heat-exchanging tube and tube sheet, comprises tube sheet, clamping sleeve, fluoroplastics heat exchanger tube, fixed head; On described tube sheet, have pore, the edge of pore is provided with chamfering; Fluoroplastics heat exchanger tube is through the pore on tube sheet, the expansion mouth that one end enlarging formation of fluoroplastics heat exchanger tube coordinates with the chamfering at pore edge;
Fixed head is pressed on tube sheet, and fixed head is provided with the perforate corresponding with pore on tube sheet, and fixed head is connected with tube sheet by securing member;
One end of the clamping sleeve of hollow has the termination coordinating with the expansion mouth of fluoroplastics heat exchanger tube, clamping sleeve penetrates in the perforate on fixed head, clamping sleeve is connected with the inwall of perforate, and insert in the expansion mouth of fluoroplastics heat exchanger tube one end of clamping sleeve, and clamping sleeve is pressed on fluoroplastics heat exchanger tube on tube sheet.
Further, described clamping sleeve is threaded connection, expanded joint or bonding way be connected with the inwall of perforate on fixed head.
Further, fixed head is connected with tube sheet by bolt.
Further, the material of described clamping sleeve is iron, aluminium, copper, fluoroplastics, PP plastics or PVC plastics.
Further, the material of described tube sheet is iron, aluminium, copper, fluoroplastics, PP plastics or PVC plastics.
Further, the material of described fixed head is iron, aluminium, copper, fluoroplastics, PP plastics or PVC plastics.
Advantage of the present utility model: because the mode that has adopted clamping sleeve to compress fluoroplastics heat exchanger tube has replaced original heat expansion method fusion process, make fluoroplastics heat exchanger tube and being connected of tube sheet become simple and convenient, connection reliability improves, can not reveal, fluoroplastics heat exchanger tube is free to disassembling, assembling and replacing simultaneously, heat exchanger tube for independent damage can be changed separately, has so greatly improved the service life of teflon heat exchanger.
Avoid the problem that the material of heat exchanger tube sheet in heat expansion method fusion process must be identical with heat exchanger tube material, because the mode that has adopted clamping sleeve compresses heat exchanger tube and tube sheet, therefore can need to select each metalloid or nonmetallic tube sheet and clamping sleeve material according to equipment and process, thereby reach instructions for use, increase substantially voltage endurance capability and the scope of application of heat exchange equipment.
Accompanying drawing explanation
Fig. 1 is structure composition schematic diagram of the present utility model.
The specific embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Figure 1: the syndeton of a kind of heat exchanger heat-exchanging tube and tube sheet, comprises tube sheet 1, clamping sleeve 2, fluoroplastics heat exchanger tube 3, fixed head 4.
On tube sheet 1, have pore 6, the edge of pore 6 is provided with chamfering 7; Fluoroplastics heat exchanger tube 3 is through the pore 6 on tube sheet 1, the expansion mouth 31 that one end enlarging formation of fluoroplastics heat exchanger tube 3 coordinates with the chamfering 7 at pore 6 edges.
Fixed head 4 is pressed on tube sheet 1, and fixed head 4 is provided with the perforate 8 corresponding with pore 6 on tube sheet 1, and fixed head 4 is connected with tube sheet 1 by bolt 5.
One end of the clamping sleeve 2 of hollow has the termination coordinating with the expansion mouth 31 of fluoroplastics heat exchanger tube 3, the external diameter of this termination is less than the external diameter of clamping sleeve 2 other parts, but be greater than the internal diameter of fluoroplastics heat exchanger tube 3, clamping sleeve 2 penetrates in the perforate 8 on fixed head 4, clamping sleeve 2 is connected with the inwall of perforate 8, insert in the expansion mouth 31 of fluoroplastics heat exchanger tube 3 one end of clamping sleeve 2, clamping sleeve 2 is pressed on fluoroplastics heat exchanger tube 3 on tube sheet 1, fluoroplastics heat exchanger tube 3 and tube sheet 1 are tightly fitted, and heat transferring medium enters heat exchanger tube 3 by the through hole in the middle of clamping sleeve 2.
The material of clamping sleeve 2, tube sheet 1 and fixed head 4 can adopt metal or nonmetallic materials according to design conditions and environment, thus the safe operation of the equipment of assurance.Particularly, the material of clamping sleeve 2, tube sheet 1 and fixed head 4 all can be selected iron, aluminium, copper, fluoroplastics, PP(polypropylene) plastics or PVC(polyvinyl chloride) plastics.
On clamping sleeve 2 and fixed head 4, the connected mode of perforate 8 inwalls, is guaranteeing that the situation that clamping sleeve can compress is little, can adopt be threaded, expanded joint, the various ways such as bonding.
The utility model is especially useful in the smaller situation of heat exchanger tube spacing, and in such cases, the perforate of holding clamping sleeve 2 is narrow, if fixed head and tube sheet are one, the trade union that adds of chamfering 7 becomes more difficult.And fixed head and tube sheet are separated, be conducive to the machine-shaping of chamfering 7.
The utility model has adopted clamping sleeve to compress the technical scheme of fluoroplastics heat exchanger tube, good sealing effect, connected mode is simple, comparatively flexible to the requirement of the materials such as tube sheet, be convenient to disassembling, assembling and replacing, solve the problem existing in existing teflon heat exchanger manufacturing technology, increased substantially the scope of application of teflon heat exchanger, reduced the risk in manufacture and use.
Claims (6)
1. a syndeton for heat exchanger heat-exchanging tube and tube sheet, is characterized in that: comprise tube sheet (1), clamping sleeve (2), fluoroplastics heat exchanger tube (3), fixed head (4);
On described tube sheet (1), have pore (6), the edge of pore (6) is provided with chamfering (7); Fluoroplastics heat exchanger tube (3) is through the pore (6) on tube sheet (1), the expansion mouth (31) that one end enlarging formation of fluoroplastics heat exchanger tube (3) coordinates with the chamfering (7) at pore (6) edge;
Fixed head (4) is pressed on tube sheet (1), fixed head (4) is provided with the perforate (8) corresponding with the upper pore (6) of tube sheet (1), and fixed head (4) is connected with tube sheet (1) by securing member;
One end of the clamping sleeve (2) of hollow has the termination coordinating with the expansion mouth (31) of fluoroplastics heat exchanger tube (3), clamping sleeve (2) penetrates in the perforate (8) on fixed head (4), clamping sleeve (2) is connected with the inwall of perforate (8), insert in the expansion mouth (31) of fluoroplastics heat exchanger tubes (3) one end of clamping sleeve (2), and clamping sleeve (2) is pressed on fluoroplastics heat exchanger tube (3) on tube sheet (1).
2. the syndeton of heat exchanger heat-exchanging tube as claimed in claim 1 and tube sheet, is characterized in that: described clamping sleeve (2) is threaded connection, expanded joint or bonding way are connected with the inwall of the upper perforate (8) of fixed head (4).
3. the syndeton of heat exchanger heat-exchanging tube as claimed in claim 1 or 2 and tube sheet, is characterized in that: fixed head (4) is connected with tube sheet (1) by bolt (5).
4. the syndeton of heat exchanger heat-exchanging tube as claimed in claim 1 or 2 and tube sheet, is characterized in that: the material of described clamping sleeve (2) is iron, aluminium, copper, fluoroplastics, PP plastics or PVC plastics.
5. the syndeton of heat exchanger heat-exchanging tube as claimed in claim 1 or 2 and tube sheet, is characterized in that: the material of described tube sheet (1) is iron, aluminium, copper, fluoroplastics, PP plastics or PVC plastics.
6. the syndeton of heat exchanger heat-exchanging tube as claimed in claim 1 or 2 and tube sheet, is characterized in that: the material of described fixed head (4) is iron, aluminium, copper, fluoroplastics, PP plastics or PVC plastics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800633.1U CN203687741U (en) | 2013-12-06 | 2013-12-06 | Connecting structure for heat exchange tubes and tube plate of heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800633.1U CN203687741U (en) | 2013-12-06 | 2013-12-06 | Connecting structure for heat exchange tubes and tube plate of heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203687741U true CN203687741U (en) | 2014-07-02 |
Family
ID=51009629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320800633.1U Expired - Fee Related CN203687741U (en) | 2013-12-06 | 2013-12-06 | Connecting structure for heat exchange tubes and tube plate of heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203687741U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910474A (en) * | 2016-06-29 | 2016-08-31 | 李志典 | Multi-pipe-plate heat exchanger |
| CN107907001A (en) * | 2017-11-21 | 2018-04-13 | 浙江菲达环保科技股份有限公司 | A kind of heat exchanger fluorine plastic tube and fixed plate coupling arrangement and coupling method |
| CN108507401A (en) * | 2018-03-12 | 2018-09-07 | 孔瑞清 | Pipe heat exchanger and its application in biomedical product production technology |
-
2013
- 2013-12-06 CN CN201320800633.1U patent/CN203687741U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105910474A (en) * | 2016-06-29 | 2016-08-31 | 李志典 | Multi-pipe-plate heat exchanger |
| CN107907001A (en) * | 2017-11-21 | 2018-04-13 | 浙江菲达环保科技股份有限公司 | A kind of heat exchanger fluorine plastic tube and fixed plate coupling arrangement and coupling method |
| CN108507401A (en) * | 2018-03-12 | 2018-09-07 | 孔瑞清 | Pipe heat exchanger and its application in biomedical product production technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20211206 |