CN207703069U - A kind of fluoroplastics tubular type liquid-liquid heat exchanger tube board connecting structure - Google Patents
A kind of fluoroplastics tubular type liquid-liquid heat exchanger tube board connecting structure Download PDFInfo
- Publication number
- CN207703069U CN207703069U CN201721930273.1U CN201721930273U CN207703069U CN 207703069 U CN207703069 U CN 207703069U CN 201721930273 U CN201721930273 U CN 201721930273U CN 207703069 U CN207703069 U CN 207703069U
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- China
- Prior art keywords
- tube
- backing plate
- fluoroplastics
- tube sheet
- heat
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- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a kind of fluoroplastics tubular liquid liquid heat exchanger tube board connecting structures, can solve the connectivity problem between heat-exchanging tube bundle and tube sheet so that the heat transferring medium in heat exchanger tube is not easy to leak, it is ensured that liquid-liquid diphase heat exchange is safe and reliable.Include the heat-exchanging tube bundle being made of more fluoroplastics thin micro tubes, which is provided with tube sheet, backing plate and the pressing plate in the tube bank hole passed through for the fluoroplastics thin micro tube, the end of the heat-exchanging tube bundle passes through tube sheet by the respective tube beam hole on the tube sheet, the respective tube beam hole continued through on the backing plate passes through backing plate flange to form shirt rim, and the shirt rim is pressed on backing plate mounted on fluoroplastics thin micro tube inner wall in the metal hollow expandable nail of T-shape；The tube sheet is fixedly connected with the backing plate, pressing plate by sunk screw successively；The tube sheet is connected by stud and nut with connecting flange.
Description
Technical field
It is strong rotten the utility model is related to have in chemical industry, light industry, pharmacy, pesticide, alkaline, dyestuff, metallurgy and plating production
Lose liquid-liquid heat-exchange apparatus field more particularly to the fluoroplastics tubular type liquid-liquid heat exchanger tube board connecting structure of medium.
Background technology
The economy of enterprise is imitated in further attention with the development and country of new material to environmental protection, in addition energy-saving and emission-reduction
The influence of benefit so that traditional metal material (such as carbon steel, stainless steel, titanium) heat exchanger exchanges heat in strong acid alkalinity and strong oxidizing property
It is easy to corrosion and scaling in system and the influence for the unfavorable factors such as service life is short, teflon heat exchanger is answered with the requirement in epoch
It transports and gives birth to.Teflon heat exchanger has been developed in recent years for the anti-corrosion heat transmission equipment in strong corrosive medium, and current grinds
Study carefully the heat exchange element mainly as high effective flue gas heat exchange equipment, for the recycling of fume afterheat depth and further dedusting, obtains
Gratifying effect.
Teflon heat exchanger is used as heat exchange material using fluoroplastics, mainly since fluoroplastics have excellent performance, such as：
(in addition to molten metal sodium and liquid fluorine, it is resistant to all acid, alkali, salt and all other chemical drugs with splendid corrosion resistance
Product), surface non-stick (surface is not easy to stain fouling, have automatic cleaning action), heat resistance it is good (temperature in use -200~
200 DEG C of ranges), ageing-resistant performance is good and service life length (outdoor service life is up to 20 years), light weight, friction coefficient are small etc.
Advantage.
It is presently used for the teflon heat exchanger of liquid heat exchange, mainly uses pipe shell type heat exchange form, heat exchange capacity
Small, heating or cooling extent is small, energy consumption is big.Meanwhile shell-and-tube tubular heat exchanger tube sheet joint mostly uses greatly Integral melting and closes welding,
This welding form is limited by tube sheet size, and the fluoroplastics that heat exchange amount is big and needs quantity larger are restrained, it is also desirable to compared with
Big tube sheet, and tube sheet is too big, whole fusion welding uneven heating, heat exchanger tube is more, and fusion face is narrower, and welding is more insecure,
Cause to weld bad and the case where welding is done over again again occur, causes the waste of manpower and material.It is more bad, Integral melting
The tube sheet for closing welding wears there are the impurity in heat transferring medium during fluoroplastics heat exchanger tube use or media impingement destroys
In the case of causing leakage non-serviceable, the heat exchanger tube of single breakage can not be replaced, fusion closure or cord can only be taken to tie up
Remedy mode.Therefore, a kind of high capacity highly effective liquid-liquid slot type heat exchanger tube sheet company made of fluoroplastics thin micro tube is developed
Binding structure has important practical significance.
Utility model content
In response to the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a kind of fluoroplastics tubular types
Liquid-liquid heat exchanger tube board connecting structure, can solve the connectivity problem between heat-exchanging tube bundle and tube sheet so that the heat exchange in heat exchanger tube
Medium is not easy to leak, it is ensured that liquid-liquid two-phase heat exchange is safe and reliable.
The utility model is using the basic conception of technical solution：A kind of fluoroplastics tubular type liquid-liquid heat exchange tube sheet connection knot
Structure, which includes the heat-exchanging tube bundle being made of more fluoroplastics thin micro tubes, which is provided with the confession fluoroplastics thin micro tube passes through
Tube sheet, backing plate and the pressing plate in hole are restrained, the end of the heat-exchanging tube bundle passes through tube sheet by the respective tube beam hole on the tube sheet, after
It is continuous to pass through backing plate flange to form shirt rim by the respective tube beam hole on the backing plate, it is installed in the metal hollow expandable nail of T-shape
The shirt rim is pressed on backing plate in fluoroplastics thin micro tube inner wall；The tube sheet passes through countersunk head with the backing plate, pressing plate successively
Screw is fixedly connected；The tube sheet is connected by stud and nut with connecting flange.
The utility model has the beneficial effects that this tube sheet joint connection type so that fluoroplastics exchanger tubes and tubesheets it
Between connection it is simple, convenient, and reliable, be not easy to leak by the heat transferring medium in heat exchanger tube, it is ensured that liquid-liquid two-phase heat hand over
It changes safe and reliable.It is easy to be individually replaced damaged fluoroplastics heat exchange pipe simultaneously, postpones the service life of heat exchanger.
Description of the drawings
Fig. 1 is the structural schematic diagram of fluoroplastics tubular type liquid-liquid heat exchanger tube board connecting structure；
Fig. 2 is the enlarged drawing of B in Fig. 1；
Fig. 3 is the sectional view of the line C-C along Fig. 1；
Fig. 4 is the structure chart of metal hollow expandable nail；
Fig. 5 is the installation diagram of fluoroplastics tubular type liquid-liquid heat exchanger tube board connecting structure.
In figure：2- connecting flanges；3- fluoroplastics thin micro tubes；4- pressing plates；5- backing plates；6- tube sheets；19- heat-exchanging tube bundles；23-
Stud and nut；24- sunk screws；The shirt rims 26-；27- metal hollow expandable nails.
Specific implementation mode
To make the utility model aim, technical solution and advantage be more clearly understood, With reference to embodiment, into
One step illustrates the utility model, and is described in detail with the accompanying drawings as follows.
As shown in figure 1, figure 2, figure 3, figure 4 and figure 5, heat-exchanging tube bundle 19 is made of more fluoroplastics thin micro tubes 3, heat exchanger tube
The both ends of beam 19 pass through tube sheet 6 by the respective tube beam hole on tube sheet 6, and continue through the respective tube beam hole on backing plate 5 and pass through
Backing plate 5 and flange form shirt rim 26 one by one, and tube sheet 6, backing plate 5 are equipped on pressing plate 4 and fluoroplastics thin micro tube 3 one is a pair of
The trepanning answered；3 inner wall of the fluoroplastics thin micro tube installation across backing plate 5 the metal hollow expandable nail 27 in T-shape by fluorine
Plastic heat exchanger pipe 3 and its shirt rim 26 are tightly pressed against on backing plate 5；Meanwhile tube sheet 6 successively respectively with backing plate 5, that pressing plate 4 passes through is heavy
Head screw 24 is fixedly connected locked, and pressing plate 4 keeps the upper end flange of the metal hollow expandable nail 27 of T-shape further that fluoroplastics are thin
The shirt rim 26 that the flange of wall micro-pipe 3 is formed is tightly pressed against between pressing plate 4 and fluorubber backing plate 5, makes fluoroplastics thin micro tube 3 in pipe
It seals and fixes on board group part.Tube sheet 6 is connected by stud and nut 23 with connecting flange 2, and the pressing plate 4 abutted is pressed
To backing plate 5, the shirt rim 26 of compression and the fluoroplastics thin micro tube 3 between fixation clip 4 and backing plate 5.
The optional fluoroplastics consistent with fluoroplastics thin micro tube 3 of material of tube sheet 6 can be common fluoro containing polymers material
Material, such as polytetrafluoroethylene (PTFE) (PTFE), tetrafluoroethylene-perfluoro alkoxy vinyl ethers copolymer (PFA), perfluoroethylene-propylene
(FEP), other engineering plastics (such as PE, PP plastics) can also be used in the fluoro-containing plastics such as Kynoar (PVDF)；Backing plate 5, pressure
Plate 4 can be selected the good fluorubber plate of soft and elastic and make, and be convenient for the sealing of tube sheet.
The metal hollow expandable nail 27 of T-shape divides for upper end and lower end cylinder, the upper end diameter phi 1, lower end circle
The diameter phi 2 and cylinder internal diameter φ 3 of column are determined according to the diameter of fluoroplastics thin micro tube 3 and the diameter of shirt rim 26, are wanted in principle
Match and adapt to the diameter of fluoroplastics thin micro tube 3 and the diameter of shirt rim 26, it is desirable that tube bank hole aperture ＞ metal hollows are swollen
Swollen 2 ＞ fluoroplastics thin micro tubes of nail lower end body diameter φ, 3 diameter.And the end of the lower end cylinder of metal hollow expandable nail 27
For circular arc chamfering, the number of degrees of chamfering are 10-30 ° so that it is convenient to which metal hollow expandable nail 27 is inserted into fluoroplastics thin micro tube 3
In and be not easy to be damaged to.
In the present embodiment, stud and nut 23, sunk screw 24, the material of metal hollow expandable nail 27 are optional
The stronger titanium matter making of the corrosion resistant metal materials such as stainless steel, titanium matter, preferably corrosion resistance is preferred.
It should be understood by those skilled in the art that the utility model is not limited to the embodiments described above, above-mentioned embodiment party
Only illustrate that the principles of the present invention, shape, named title of parts etc. can be different described in formula and specification,
On the premise of not departing from the spirit and scope of the utility model, the utility model also has various change, variation, modification, is equal
Replace and improve etc., it should be included within the protection domain of technical solutions of the utility model requirement.
Claims (1)
1. a kind of fluoroplastics tubular type liquid-liquid heat exchanger tube board connecting structure, includes the heat exchange being made of more fluoroplastics thin micro tubes
Tube bank, which is characterized in that further include tube sheet, backing plate and the pressure which is provided with the tube bank hole passed through for the fluoroplastics thin micro tube
The end of plate, the heat-exchanging tube bundle passes through tube sheet by the respective tube beam hole on the tube sheet, continues through pair on the backing plate
Hole should be restrained and form shirt rim across backing plate flange, fluoroplastics thin micro tube inner wall is mounted in the metal hollow expandable nail of T-shape
The shirt rim is pressed on backing plate；The tube sheet is fixedly connected with the backing plate, pressing plate by sunk screw successively；The tube sheet
It is connected with connecting flange by stud and nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721930273.1U CN207703069U (en) | 2017-12-26 | 2017-12-26 | A kind of fluoroplastics tubular type liquid-liquid heat exchanger tube board connecting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721930273.1U CN207703069U (en) | 2017-12-26 | 2017-12-26 | A kind of fluoroplastics tubular type liquid-liquid heat exchanger tube board connecting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207703069U true CN207703069U (en) | 2018-08-07 |
Family
ID=63031104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721930273.1U Expired - Fee Related CN207703069U (en) | 2017-12-26 | 2017-12-26 | A kind of fluoroplastics tubular type liquid-liquid heat exchanger tube board connecting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207703069U (en) |
-
2017
- 2017-12-26 CN CN201721930273.1U patent/CN207703069U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180807 Termination date: 20191226 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |