CN211574249U - Steel lining tetrafluoro tower section sealing structure - Google Patents
Steel lining tetrafluoro tower section sealing structure Download PDFInfo
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- CN211574249U CN211574249U CN202020189621.XU CN202020189621U CN211574249U CN 211574249 U CN211574249 U CN 211574249U CN 202020189621 U CN202020189621 U CN 202020189621U CN 211574249 U CN211574249 U CN 211574249U
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- tower section
- flange
- tower
- tetrafluoro
- steel
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Abstract
The steel lining PTFE tower section sealing structure comprises a tower section and lining PTFE attached to the inner wall of the tower section, wherein tower section flanges extending outwards of the tower section are respectively arranged at two ends of the tower section, flange holes used for being connected with adjacent tower sections are arranged on the tower section flanges, and two ends of the lining PTFE respectively extend out of the tower section and are sequentially bent towards the end surface of the tower section flange and the outer wall surface of the tower section flange to form outward flanges attached to the outer wall surface of the tower section flange; the outer flanging is also provided with a fastening device for fixedly arranging the outer flanging on the outer wall surface of the tower section flange, and the outer flanging is provided with a through hole communicated with the flange hole; and a polytetrafluoroethylene sleeve is fixedly arranged on the inner wall of the flange hole, and a connecting bolt is arranged in the polytetrafluoroethylene sleeve. Compared with the prior art, the utility model discloses effectively solved long-term use back tower section flange joint face sealed relatively poor, leaded to the technical problem who reveals easily.
Description
Technical Field
The utility model relates to a tower section sealing technical field, concretely relates to steel lining tetrafluoro tower section seal structure.
Background
The steel lined PTFE tower is one kind of PTFE lined tower equipment, and includes one tower body comprising several sections of PTFE lined tower sections, with the joints of adjacent tower sections being sealed to prevent leakage of the matter inside the tower. The structure of the existing steel lining tetrafluoro tower section is shown in fig. 1-2, and as can be seen from fig. 1, the existing steel lining tetrafluoro tower section comprises a tower section and lining tetrafluoro attached to the inner wall of the tower section, tower section flanges extending outwards from the tower section are respectively arranged at two ends of the tower section, through flange holes are arranged on the tower section flanges, and adjacent tower sections are fixedly connected through connecting bolts in threaded connection in the flange holes. Two ends of the lining PTFE respectively extend out of the tower section and extend outwards towards the tower section to be close to the threaded hole. The existing steel-lined tetrafluoro tower equipment needs to be stopped for maintenance after being used for a long time, the maintenance needs to be carried out from the joint of the tower sections during maintenance, so that filler in the tower equipment is replaced or whether the inner diameter of the equipment needs to be replaced is conveniently checked, the tower sections are disassembled as shown in figure 2, the tower sections are used at a high temperature state for a long time, the shrinkage of lining tetrafluoro is large after long-time expansion and contraction, therefore, the lining tetrafluoro on the flange sealing surface of the tower sections is easy to shrink into the tower sections, when the tower sections are assembled again, the sealing effect of the connecting surface of a tower section flange is poor, the condition is that a small amount of medium is easy to permeate out from the connecting surface of the tower section flange to cause leakage accidents when the tower sections are used, and the medium permeates into the joint of the tower section flange a small amount to cause the problems of rusting and the like.
SUMMERY OF THE UTILITY MODEL
To the not enough that exists among the prior art, the utility model provides a steel lining tetrafluoro tower festival seal structure for the tower festival flange joint face's is relatively poor after solving the long-term use among the background art, leads to the technical problem who reveals easily and dismantles difficult scheduling problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the steel lining PTFE tower section sealing structure comprises a tower section and lining PTFE attached to the inner wall of the tower section, wherein tower section flanges extending outwards of the tower section are respectively arranged at two ends of the tower section, flange holes used for being connected with adjacent tower sections are arranged on the tower section flanges, and two ends of the lining PTFE respectively extend out of the tower section and are sequentially bent towards the end surface of the tower section flange and the outer wall surface of the tower section flange to form outward flanges attached to the outer wall surface of the tower section flange; the outer flanging is also provided with a fastening device for fixedly arranging the outer flanging on the outer wall surface of the tower section flange, and the outer flanging is provided with a through hole communicated with the flange hole; and a polytetrafluoroethylene sleeve is fixedly arranged on the inner wall of the flange hole, and a connecting bolt is arranged in the polytetrafluoroethylene sleeve.
Compared with the prior art, the utility model discloses following beneficial effect has: 1. the end part of the lining PTFE in the tower section is turned over to the end face of the tower section flange, and then is reversely wrapped to the side surface of the tower section flange and is fixed with the tower section flange by a fastening device, so that the technical problem that the sealing effect of the connecting surface of the tower section flange is poor when the tower section is assembled due to the fact that the lining PTFE shrinks greatly after long-time thermal expansion and cold contraction when the tower section is disassembled after long-term use can be solved, after the end part of the lining PTFE is turned over to the outer side surface of the tower section flange and is fixed with the tower section flange by the fastening device, the lining PTFE can not shrink into the tower section flange after long-time thermal expansion and cold contraction, and therefore internal corrosion media in the tower section can be prevented from permeating outwards along the connecting surface of the tower section flange when the tower section is assembled again, and the problems of corrosion of the connecting surface of the tower section flange; 2. after the polytetrafluoroethylene sleeve is fixedly arranged on the inner wall of the flange hole, a corrosion medium in the tower section can be effectively prevented from permeating into the flange hole and corroding a connecting bolt in the flange hole, the connecting bolt is prevented from being rusted in the flange hole, the assembly and disassembly are more convenient, and the service life of the whole equipment is effectively prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a conventional steel-lined tetrafluoro tower section in the background art of the present invention.
Fig. 2 is a sectional view of a steel-lined tetrafluoro tower section in the background art of the present invention after long-term use.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4 is an enlarged view of fig. 3 at a.
In the figure: the tower section comprises a tower section 1, lining PTFE 2, an outer flanging 3, a flange hole 4, a tower section flange 5, an anchor ear 6, a stud 7, a screw cap 8, a PTFE coating layer 9, a PTFE sleeve 10 and a gasket 11.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, and specific embodiments will be given.
As shown in fig. 3-4, the steel lining tetrafluoro tower section sealing structure comprises a cylindrical tower section 1 and a lining tetrafluoro 2 attached to the inner wall of the tower section 1, wherein the lining tetrafluoro 2 is cylindrical, and the outer side surface of the lining tetrafluoro 2 is attached to the inner wall of the tower section 1 through high-temperature glue so as to completely cover the inner wall surface of the tower section 1; the two ends of the tower section 1 respectively extend outwards from the tower section 1 along the radial direction of the tower section to form a tower section flange 5 which is integrated with the tower section 1 and is annular, flange holes 4 used for being connected with adjacent tower sections are uniformly arranged on the tower section flange 5, the flange holes are through holes, the axial direction of the flange holes is parallel to the axis of the tower section 1, the two ends of the lining PTFE 2 respectively extend out of the tower section 1 and are bent towards the end face of the tower section flange 5, and the lining PTFE 2 is bent towards the surface of the outer wall of the tower section flange 5 after being bent to the edge of the end face of the tower section flange 5, so as to form an outward flange 3 which is attached to the surface of the outer wall of the tower section flange 5 and completely; the outer flanging 3 is also provided with a fastening device for fixedly arranging the outer flanging 3 on the outer wall surface of the tower section flange 5, and the outer flanging 3 is provided with a through hole communicated with the flange hole 4; the inner wall of the flange hole 4 is fixedly provided with a tetrafluoro sleeve 10, a connecting bolt used for fixing the adjacent tower sections 1 is arranged in the tetrafluoro sleeve 10, when the tower sections 1 are assembled, the adjacent tower sections 1 are fixedly connected through the connecting bolt in the flange hole 4, and the outer flanging 3 of the lining tetrafluoro 2 is also provided with a through hole, so that the connecting bolt penetrates through the flange holes 4 of the two adjacent tower sections 1 and the through holes of the outer flanging 3 when the tower sections 1 are assembled, so that the two adjacent tower sections 1 are fixedly connected together. Preferably, the tetrafluoro sleeve 10 may be replaced with a tetrafluoro-coated layer 9 having a small wall thickness or other structures that can provide similar effects.
In some embodiments of the present invention, the fastening device is a stainless steel hoop 6 or a stainless steel ring sleeved outside the flanging 3. The stainless steel anchor ear 6 or the stainless steel clamp ring can firmly lock the outer flanging 3 of the lining tetrafluoro 2 on the side surface of the tower section flange 5, and effectively prevents the outer flanging 3 of the lining tetrafluoro 2 from shrinking towards the inside of the tower section 1, so that even if high-temperature glue fails, the connecting surface of the tower section flange 5 can not shrink, and the sealing effect is effectively improved.
In some embodiments of the present invention, the connecting bolt is a stud bolt 7, and the end of the stud bolt 7 is fixed to the tower section 1 through a nut 8. When the tower section 1 is disassembled, the screw caps 8 are disassembled from two ends of the double-end stud 7 respectively, and then the double-end stud 7 is disassembled from one of the flange holes 4 of the connected tower section 1, so that the disassembly is more convenient due to the bidirectional disassembly.
In some embodiments of the present invention, the outer surface of the stud bolt 7 is provided with a teflon coating 9. Further, the PTFE-coated layer 9 is disposed on the outer surface of the stud 7 inside the PTFE sleeve 10. The outer surface of the stud 7 in the tetrafluoro sleeve 10 is provided with the teflon coating layer 9, so that the stud 7 in the flange hole 4 can be effectively prevented from being corroded by corrosive media penetrating from the connecting surface of the tower section flange 5.
The utility model discloses an in some embodiments, tetrafluoro sleeve pipe 10's internal diameter size is greater than stud 7's radial dimension, and consequently stud 7 can produce small displacement by relative tetrafluoro sleeve pipe 10, consequently when tower section 1 dismantles, can rock in tetrafluoro sleeve pipe 10 through making stud 7, solves stud 7 and causes stud 7 rust to die the problem in flange hole 4 when corrosive medium permeates flange hole 4, and consequently the dismouting is more convenient, can also improve the life of whole equipment.
The utility model discloses an in some embodiments, stud 7 between the nut 8 and the tower festival flange terminal surface that this nut 8 is relative still overlaps outward and is equipped with gasket 11, gasket 11 is customization nonstandard size gasket 11, can make stud 7 dismantle more convenient.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (7)
1. Steel lining tetrafluoro tower festival seal structure, including tower festival and tower festival inner wall on attached inside lining tetrafluoro, tower festival both ends are equipped with the tower festival flange that extends to the tower festival outward respectively, are equipped with the flange hole that is used for being connected with adjacent tower festival on the tower festival flange, its characterized in that: two ends of the lining PTFE respectively extend out of the tower section and are sequentially bent towards the end face of the tower section flange and the surface of the outer wall of the tower section flange to form outward flanges attached to the surface of the outer wall of the tower section flange; the outer flanging is also provided with a fastening device for fixedly arranging the outer flanging on the outer wall surface of the tower section flange, and the outer flanging is provided with a through hole communicated with the flange hole; and a polytetrafluoroethylene sleeve is fixedly arranged on the inner wall of the flange hole, and a connecting bolt is arranged in the polytetrafluoroethylene sleeve.
2. The steel-lined tetrafluoro tower section sealing structure according to claim 1, characterized in that: the fastening device is a hoop or a snap ring sleeved outside the outward flange.
3. The steel-lined tetrafluoro tower section sealing structure according to claim 1 or 2, characterized in that: the connecting bolt is a stud, and the end part of the stud is fixed with the tower section through a nut.
4. The steel-lined tetrafluoro tower section sealing structure according to claim 3, characterized in that: and a Teflon coating layer is arranged on the outer surface of the double-end stud.
5. The steel-lined tetrafluoro tower section sealing structure according to claim 4, characterized in that: the PTFE-coated layer is arranged on the outer surface of the stud in the PTFE sleeve.
6. The steel-lined tetrafluoro tower section sealing structure according to claim 3, characterized in that: the inner diameter of the tetrafluoro sleeve is larger than the radial dimension of the stud.
7. The steel-lined tetrafluoro tower section sealing structure according to claim 3, characterized in that: and a gasket is sleeved outside the stud between the screw cap and the end face of the tower section flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020189621.XU CN211574249U (en) | 2020-02-20 | 2020-02-20 | Steel lining tetrafluoro tower section sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020189621.XU CN211574249U (en) | 2020-02-20 | 2020-02-20 | Steel lining tetrafluoro tower section sealing structure |
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| Publication Number | Publication Date |
|---|---|
| CN211574249U true CN211574249U (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020189621.XU Active CN211574249U (en) | 2020-02-20 | 2020-02-20 | Steel lining tetrafluoro tower section sealing structure |
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| CN (1) | CN211574249U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714736A (en) * | 2021-08-03 | 2021-11-30 | 湖北兴发凌志新材料有限公司 | Rapid manufacturing method of steel lining polytetrafluoroethylene pipeline |
-
2020
- 2020-02-20 CN CN202020189621.XU patent/CN211574249U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113714736A (en) * | 2021-08-03 | 2021-11-30 | 湖北兴发凌志新材料有限公司 | Rapid manufacturing method of steel lining polytetrafluoroethylene pipeline |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221228 Address after: 443300 Group 5, Changlinggang Village, Yaojiadian Town, Yidu City, Yichang City, Hubei Province Patentee after: Hubei Yongxu Fluoroplastic Anticorrosion Technology Co.,Ltd. Address before: 443300 Zhicheng Avenue, Zhicheng Town, Yidu City, Yichang City, Hubei Province Patentee before: Guizhou Lanxin graphite mechanical and electrical equipment manufacturing Co.,Ltd. Hubei anti corrosion equipment branch |
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| TR01 | Transfer of patent right |