CN201848240U - Tetrafluoroethylene lined tower section - Google Patents
Tetrafluoroethylene lined tower section Download PDFInfo
- Publication number
- CN201848240U CN201848240U CN2010205441489U CN201020544148U CN201848240U CN 201848240 U CN201848240 U CN 201848240U CN 2010205441489 U CN2010205441489 U CN 2010205441489U CN 201020544148 U CN201020544148 U CN 201020544148U CN 201848240 U CN201848240 U CN 201848240U
- Authority
- CN
- China
- Prior art keywords
- flange
- tetrafluoroethylene
- tower section
- adhesive layer
- tower
- Prior art date
- 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.)
- Expired - Fee Related
Links
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 title abstract 10
- 239000012790 adhesive layer Substances 0.000 claims abstract description 21
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 8
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 8
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 5
- 230000032683 aging Effects 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract 2
- 239000011229 interlayer Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 210000003298 dental enamel Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005580 one pot reaction Methods 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
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Abstract
The utility model relates to a tetrafluoroethylene lined tower section, which comprises a tower body. A first flange is arranged at the upper end of the tower body, and a second flange is arranged at the lower end of the tower body. The tetrafluoroethylene lined tower section is characterized in that an adhesive layer is arranged on the inner surface of the tower body, two ends of the adhesive layer respectively extend to sealing surfaces of the first flange and the second flange and adhered with the sealing surfaces of the first flange and the second flange, and a tetrafluoroethylene lining plate is adhered on the adhesive layer. The adhesive layer is a soluble polytetrafluoroethylene film, the tetrafluoroethylene lining plate is a polytetrafluoroethylene plate, and the thickness of the tetrafluoroethylene lining plate is 1-3mm. The tetrafluoroethylene lined tower section with simple structure is capable of running for a long period of time under the working condition of high temperature and negative pressure without husking, bulging or tearing, the highest operating pressure and the highest operating temperature in the tetrafluoroethylene lined tower section are the same as those of a glass lined tower section in market, the permissible lowest environmental temperature of the tetrafluoroethylene lined tower section is different from that of the glass lined tower section and can be lower than -20 DEG C, and the tetrafluoroethylene lined tower section is long in service life, non-sticky and non-aging.
Description
Technical field
The utility model relates to a kind of tetrafluoro lining tower joint, and especially a kind of tower joint that is used for chemical industry equipments such as alembic, destilling tower, rectifying column belongs to what chemical anticorrosion technical field.
Background technology
In existing technology: tetrafluoro lining tower joint adopts empty cover method, at the empty cover lining of tower joint inwall tetrafluoro plate.Because be empty cover, do not make adhesion process with inwall, just can't handle the bulge of tetrafluoro lining, shell, tear technical barrier, and cause the tetrafluoro lining under high temperature, negative pressure operating mode, to lose efficacy.
Mainly there is following technical deficiency place: in the existing technology, at the inwall of tower joint, overlap artificial hot pressing whip stitch behind the artificial reel in the tetrafluoro that matches by its internal diameter size, sky is enclosed within Ta Jienei, two ends stretch out, artificial flange, topped flange sealing surface, do not have bonding, sky is enclosed within tower joint inwall fully, and the space that exists 1～3mm not wait between the cover in tower joint inwall and the tetrafluoro has formed the natural air interlayer.It is that cover two end extensions form with artificial big flange again in the tetrafluoro that tower saves two end flanges sealing surfaces, does not also make adhesion process with the flange sealing surface of tetrafluoro lining.Therefore, can't form the seal cavity interlayer between the sealing surface of two end flanges and the tetrafluoro lining, air is in free state forever in the interlayer.When tower joint under high temperature, negative pressure operating mode, the every intensity index of PTFE sharply descends.The air of interlayer is heated and expands suddenly, and the pressure of expansion has produced the suction function that external pressure is subjected to Ta Jienei simultaneously again to lining, the tetrafluoro lining under the effect of inside and outside dual pressure, unstability and produce shelling, tear or bulge is out of shape.
In order to solve the dual pressurized problem of lining, the someone adopts remedial measure, and promptly one group of vacuum system of independent increase is communicated with the tetrafluoro lining interlayer that tower saves with vacuum line outside the tower joint.Vavuum pump is communicated with vacuum line, and tower saves in the running, and vavuum pump and tower joint vacuum system start synchronously, and close synchronously makes the interlayer of tetrafluoro lining be in vacuum state, with the negative pressure in the tower that contends with.Though on reason, as if solved the vacuum equalization problem, but ignored the linear expansion stress influence of PTFE deadweight, PTFE under the high temperature, the vacuum of having ignored vavuum pump is not the absolute vacuum state, residual air at high temperature expands suddenly, produce high pressure, under these composite factor effects, the tetrafluoro lining still is the bulge distortion.Therefore, in prior art, can't solve the rational method that steel lining tetrafluoro tower joint runs well under high temperature, negative pressure.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of tetrafluoro lining tower joint that can long-term operation under high temperature, negative pressure is provided.
According to the technical scheme that the utility model provides, a kind of tetrafluoro lining tower joint comprises tower body, in the upper end of tower body first flange is set, and in the lower end of tower body second flange is set; Feature is: the inner surface at described tower body is provided with adhesive layer, and the two ends of described adhesive layer extend to respectively on the sealing surface of first flange and second flange, and fits with the sealing surface of first flange and second flange; On adhesive layer, be bonded with the tetrafluoro liner plate.
Described adhesive layer is the solubility polytetrafluoroethylene film.Described tetrafluoro liner plate is a polyfluortetraethylene plate.
Described tetrafluoro liner plate thickness is 1 ~ 3mm.
The utility model compared with prior art has following advantage:
1, can be under high temperature, negative pressure long-term operation and do not shell, not bulge, do not tear; In high temperature, the long-time running of negative pressure operating mode, and simple in structure;
2, lining tetrafluoro Ta Jienei maximum working pressure, operating temperature is the same with enamel tower joint product on the market, and different is the temperature that allows minimum environment, and tetrafluoro tower joint can reach below-20 ℃, is suitable for extremely frigid zones;
3, long service life, non-viscosity, not aging; Stablized manufacturing schedule, guaranteed high-purity feed purity, be particularly useful for the high-purity material industry of requirement, as pharmaceutical industry;
4, under high temperature, negative pressure operating mode, the tetrafluoro lining can be resisted all chemical mediator corrosion of nature, and anti-strong acid, highly basic, powerful oxidation corrosion resistance are suitable for high corrosion chemical enterprise;
5, improve business productivity, overcome enamel Ta Jieyi burst porcelain, the easy weakness of fouling, avoided the user often to stop production, change the tower joint, influenced user's ordinary production;
6, saved social resources: because enamel tower joint quick-fried porcelain just scrap one pot of material, the value of one pot of material at least several ten thousand, up to a million at most;
7, no cold shock, thermal shock requirement; Be suitable for chilling, anxious thermal condition;
8, bonding with the electric dry oven heating, useful environmental protection.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the I enlarged drawing of Fig. 1.
The specific embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
As Fig. 1～shown in Figure 2: tetrafluoro lining tower joint comprises first flange 1, tower body 2, second flange 3, adhesive layer 4, tetrafluoro liner plate 5 etc.
The utility model comprises tower body 2, and first flange 1 is set in the upper end of tower body 2, and second flange 3 is set in the lower end of tower body 2; Inner surface at tower body 2 is provided with adhesive layer 4, and the two ends of described adhesive layer 4 extend to respectively on the sealing surface of first flange 1 and second flange 3, and bonding with the sealing surface of first flange 1 and second flange 3; On adhesive layer 4, be bonded with tetrafluoro liner plate 5;
Described adhesive layer 4 is the solubility polytetrafluoroethylene film; Described tetrafluoro liner plate 5 is a polyfluortetraethylene plate;
Described tetrafluoro liner plate 5 thickness are 1 ~ 3mm;
Described tower body 2 adopts carbon steel to make, and length is 0.5 meter～2 meters, and the diameter of tower body 2 is 150～1300mm.
Operation principle of the present utility model: the tower joint tower body 2 described in the utility model and first flange 1 at two ends and the sealing surface of second flange 3 are provided with adhesive layer 4, bonding tetrafluoro liner plate 5 on adhesive layer 4; Also be provided with adhesive layer 4 on the inwall of tower body 2, bonding with the tetrafluoro liner plate 5 of tower body 2 inwalls, bonding operation is that tetrafluoro liner plate 5 closely is bonded on the sealing surface of tower body 2 inwalls and two end flanges fully; Tetrafluoro lining tower joint described in the utility model is equally applicable to serve as a contrast the anti-negative-pressure pipeline of tetrafluoro.
In use, utilize flange to link together between the adjacent towers joint, seal the energy-conservation long-term operation under high temperature, negative pressure of tower between flange and the flange by the tetrafluoro liner plate 5 usefulness refractory seals pads on the adhesive layer 4 with fastening bolt.
Through repeatedly simulating adhesive test down at 360 ℃, after the cooling, under 200 ℃ of tower joint maximum operation (service) temperatures, make test for tensile strength, the result of the test data show: tensile strength under 200 ℃ of high temperature〉0.30Mpa, the anti-negative pressure ability of (200 ℃) under maximum operating temperature that is enough to contend with in the tower, the high negative pressure in the tower as long as 0.1Mpa is enough to contend with has guaranteed the long-term operation of tower joint in theory, steady production technology has improved the performance of enterprises.
Claims (4)
1. a tetrafluoro lining tower joint comprises tower body (2), in the upper end of tower body (2) first flange (1) is set, and in the lower end of tower body (2) second flange (3) is set; It is characterized in that: the inner surface at described tower body (2) is provided with adhesive layer (4), the two ends of described adhesive layer (4) extend to the sealing surface of first flange (1) and second flange (3) respectively, and fit with the sealing surface of first flange (1) and second flange (3); On adhesive layer (4), be bonded with tetrafluoro liner plate (5).
2. tetrafluoro lining tower joint as claimed in claim 1, it is characterized in that: described adhesive layer (4) is the solubility polytetrafluoroethylene film.
3. tetrafluoro lining tower joint as claimed in claim 1, it is characterized in that: described tetrafluoro liner plate (5) is a polyfluortetraethylene plate.
4. tetrafluoro lining tower joint as claimed in claim 1, it is characterized in that: described tetrafluoro liner plate (5) thickness is 1 ~ 3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205441489U CN201848240U (en) | 2010-09-27 | 2010-09-27 | Tetrafluoroethylene lined tower section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205441489U CN201848240U (en) | 2010-09-27 | 2010-09-27 | Tetrafluoroethylene lined tower section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201848240U true CN201848240U (en) | 2011-06-01 |
Family
ID=44090655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205441489U Expired - Fee Related CN201848240U (en) | 2010-09-27 | 2010-09-27 | Tetrafluoroethylene lined tower section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201848240U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325305A (en) * | 2022-08-08 | 2022-11-11 | 浙江菲达通球环保管业有限公司 | Steel lining polytetrafluoroethylene tower section equipment and manufacturing method thereof |
-
2010
- 2010-09-27 CN CN2010205441489U patent/CN201848240U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115325305A (en) * | 2022-08-08 | 2022-11-11 | 浙江菲达通球环保管业有限公司 | Steel lining polytetrafluoroethylene tower section equipment and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110601 Termination date: 20130927 |