CN220134852U - Negative pressure-resistant tetrafluoro lining and mounting structure thereof - Google Patents
Negative pressure-resistant tetrafluoro lining and mounting structure thereof Download PDFInfo
- Publication number
- CN220134852U CN220134852U CN202321570321.6U CN202321570321U CN220134852U CN 220134852 U CN220134852 U CN 220134852U CN 202321570321 U CN202321570321 U CN 202321570321U CN 220134852 U CN220134852 U CN 220134852U
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- polytetrafluoroethylene
- tetrafluoro
- lining
- pressure resistant
- 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.)
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Links
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 45
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 45
- -1 polytetrafluoroethylene Polymers 0.000 claims abstract description 33
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 23
- 239000010959 steel Substances 0.000 claims abstract description 23
- 238000004804 winding Methods 0.000 claims abstract description 11
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 239000010410 layer Substances 0.000 description 15
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000032798 delamination Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The utility model relates to the technical field of chemical equipment, in particular to a negative pressure resistant tetrafluoro lining and an installation structure thereof, wherein the negative pressure resistant tetrafluoro lining comprises a negative pressure ring and a supporting bar, the negative pressure ring sequentially comprises a steel ring, a polytetrafluoroethylene winding steel wire mesh layer and a polytetrafluoroethylene tube from inside to outside, and the polytetrafluoroethylene tube is sleeved outside the polytetrafluoroethylene winding steel wire mesh layer in a segmented manner; the support bars are provided with a plurality of mounting grooves, the negative pressure rings in the transverse directions are clamped in the mounting grooves of the support bars in the vertical directions, and the polytetrafluoroethylene tubes are positioned between two adjacent support bars; the supporting strips are made of polytetrafluoroethylene. The negative pressure resistant tetrafluoro lining is arranged on the inner wall of the cylinder body, and the supporting bars avoid the pipe orifice on the cylinder body. According to the utility model, the skeleton-type tetrafluoro lining is arranged on the inner wall of the cylinder body of the tetrafluoro device, so that the tetrafluoro is prevented from falling off, creeping and twisting after high temperature, the condition that the tetrafluoro layer is absorbed and shrunken under the negative pressure condition is prevented, the reinforcement effect is realized, and the service life of the tetrafluoro device is prolonged.
Description
Technical Field
The utility model relates to the technical field of chemical equipment, in particular to a negative pressure-resistant tetrafluoro lining and an installation structure thereof.
Background
The existing equipment fluorine lining technology is mainly divided into two types:
(1) One is to adopt the technology of surface naphthalene surface chemical modification PTFE lining and the technology of uniformly coating fluoride adhesive, change loose lining into tight bonding lining to form PTFE lining, overcome the defects of lining deformation, delamination, wrinkling, etc. caused by expansion with heat and contraction with cold; meanwhile, the technology of heating and cooling, inflating and pressurizing, interlayer vacuumizing and high-temperature plasticizing is adopted, so that the density of the PTFE lining layer is improved, the stress of the PTFE lining layer is eliminated, the PTFE performance is stabilized, the defects of thermal deformation and cold flow are overcome, and the effective adhesion of the PTFE lining and the shape of the metal shell is realized to achieve the integration of steel and fluorine;
(2) The other is to wind the steel wire mesh, namely the PTFE lining layer is wound in multiple layers, the whole is sintered and formed, a layer of PTFE plate with the thickness of 0.5-2mm is firstly coated on a special die, then the PTFE belt is wound to reach the design thickness, the diamond-shaped steel plate mesh is wound outside and fixed by steel wires, the PTFE belt is continuously used for winding outside to reach the design thickness, then the PTFE belt is fixed, and finally the PTFE belt is put into a furnace for high-temperature sintering and forming.
However, in the first technique, since the temperature of the glue for bonding the PTFE and the cylinder is not higher than 100 ℃, the glue gradually fails after the temperature exceeds, and the tetrafluoro layer is easy to fall off and deform, while in the second technique, since the steel plate mesh is wound inside, after the temperature is high, the tetrafluoro is creep, the inner liner is easy to twist, and at the same time, the fluorine-lined device is easy to be shrunken for the working condition with negative pressure.
Disclosure of Invention
The utility model solves the problems in the related art, and provides the negative pressure resistant tetrafluoro lining and the mounting structure thereof, which not only prevent tetrafluoro from falling off, creeping and twisting after high temperature, but also prevent the condition that a tetrafluoro layer is absorbed and shrunken under the negative pressure condition, play a role in reinforcement, and prolong the service life of tetrafluoro equipment.
In order to solve the technical problems, the utility model is realized by the following technical scheme: the negative pressure resistant tetrafluoro lining comprises a negative pressure ring and a supporting bar, wherein the negative pressure ring sequentially comprises a steel ring, a polytetrafluoroethylene winding steel wire mesh layer and a polytetrafluoroethylene tube from inside to outside, and the polytetrafluoroethylene tube is sleeved outside the polytetrafluoroethylene winding steel wire mesh layer in a segmented manner; the support bars are provided with a plurality of mounting grooves, the plurality of transverse negative pressure rings are clamped in the mounting grooves of the plurality of vertical support bars, and the polytetrafluoroethylene tubes are positioned between two adjacent support bars; the supporting strips are made of polytetrafluoroethylene.
In another aspect of the utility model, a mounting structure of a negative pressure resistant tetrafluoro liner is provided, which comprises the negative pressure resistant tetrafluoro liner and a cylinder, wherein the negative pressure resistant tetrafluoro liner is mounted on the inner wall of the cylinder, and the support bar avoids the pipe orifice on the cylinder.
As a preferable scheme, the pipe orifice on the cylinder body comprises a crude methanol outlet, a thermometer port and a remote liquid level meter port which are arranged at the lower part of the cylinder body.
Preferably, a lifting lug is arranged on the upper portion of the cylinder body.
Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the skeleton-type tetrafluoro lining is arranged on the inner wall of the cylinder body of the tetrafluoro device, so that the tetrafluoro is prevented from falling off, creeping and twisting after high temperature, the condition that the tetrafluoro layer is absorbed and shrunken under the negative pressure condition is prevented, the reinforcement effect is realized, and the service life of the tetrafluoro device is prolonged.
Drawings
FIG. 1 is a front view of a negative pressure resistant tetrafluoro liner of the present utility model;
FIG. 2 is a top view of the negative pressure resistant tetrafluoro liner of the present utility model;
FIG. 3 is a cross-sectional view of a negative pressure ring of the present utility model;
FIG. 4 is a schematic view of the construction of the support bar of the present utility model;
FIG. 5 is a front view of the negative pressure resistant tetrafluoro liner of the present utility model installed in an equipment cartridge;
fig. 6 is a top view of the negative pressure resistant tetrafluoro liner of the present utility model installed in an equipment cylinder (lifting lugs omitted).
In the figure:
1. the negative pressure ring, 101, steel ring, 102, polytetrafluoroethylene winding steel wire mesh layer, 103, polytetrafluoroethylene tube, 2, support bar, 201, mounting groove, 3, barrel, 301, crude methanol outlet, 302, thermometer port, 303, remote transmission liquid level meter port, 304, lug.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present utility model. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present utility model, it should be understood that the azimuth or positional relationships indicated by the azimuth terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal", and "top, bottom", etc., are generally based on the azimuth or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present utility model; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are only for convenience of distinguishing the corresponding components, and the terms have no special meaning unless otherwise stated, and therefore should not be construed as limiting the scope of the present utility model.
Example 1
As shown in fig. 1 to 4, a negative pressure resistant tetrafluoro liner comprises a negative pressure ring 1 and a supporting strip 2; the negative pressure ring 1 sequentially comprises a steel ring 101, a polytetrafluoroethylene winding steel wire mesh layer 102 and a polytetrafluoroethylene tube 103 from inside to outside, wherein the polytetrafluoroethylene tube 103 is sleeved outside the polytetrafluoroethylene winding steel wire mesh layer 102 in a segmented manner; a plurality of mounting grooves 201 are formed in the support bar 2, a plurality of transverse negative pressure rings 1 are clamped in the mounting grooves 201 of the support bar 2 in a plurality of vertical directions, and polytetrafluoroethylene tubes 103 are positioned between two adjacent support bars 2; the supporting bar 2 is made of polytetrafluoroethylene.
The specific manufacturing process is as follows: the steel ring 101 is rolled, then polytetrafluoroethylene is covered on the outer portion of the steel ring 101 by adopting a steel wire mesh winding tetrafluoro process, a polytetrafluoroethylene layer 102 is covered on the outer portion of the steel ring 101, a layer of polytetrafluoroethylene tube 103 is welded at the joint, the outermost section is sleeved with the polytetrafluoroethylene tube 103 to form a negative pressure ring 1, the layer number of the negative pressure ring 1 is determined according to the height of the cylinder 3 and working conditions, and finally polytetrafluoroethylene support bars 2 are uniformly distributed on the periphery of the negative pressure ring 1, so that the negative pressure ring 1 is clamped in the mounting grooves 201 of the support bars 2, and the polytetrafluoroethylene tube 103 is positioned between two adjacent support bars 2 to support the negative pressure ring 1.
Example 2
As shown in fig. 5-6, the present embodiment provides a negative pressure-resistant tetrafluoro liner mounting structure, which includes the negative pressure-resistant tetrafluoro liner of embodiment 1 and a cylinder 3, wherein the negative pressure-resistant tetrafluoro liner is mounted on the inner wall of the cylinder 3 and the support bar 2 avoids the pipe orifice on the cylinder 3, and specifically, the pipe orifice on the cylinder 3 includes a crude methanol outlet 301, a thermometer port 302 and a remote liquid level meter port 303, which are disposed at the lower part of the cylinder 3.
In one embodiment, the upper part of the cylinder 3 is provided with lifting lugs 304 for integral lifting of the apparatus.
The above is a preferred embodiment of the present utility model, and a person skilled in the art can also make alterations and modifications to the above embodiment, therefore, the present utility model is not limited to the above specific embodiment, and any obvious improvements, substitutions or modifications made by the person skilled in the art on the basis of the present utility model are all within the scope of the present utility model.
Claims (4)
1. A negative pressure resistant tetrafluoro liner, characterized in that: the negative pressure ring (1) sequentially comprises a steel ring (101), a polytetrafluoroethylene winding steel wire mesh layer (102) and a polytetrafluoroethylene tube (103) from inside to outside, wherein the polytetrafluoroethylene tube (103) is sleeved outside the polytetrafluoroethylene winding steel wire mesh layer (102) in a segmented manner; a plurality of mounting grooves (201) are formed in the supporting strips (2), a plurality of transverse negative pressure rings (1) are clamped in the mounting grooves (201) of the supporting strips (2) in a plurality of vertical directions, and the polytetrafluoroethylene tubes (103) are positioned between two adjacent supporting strips (2); the supporting strips (2) are made of polytetrafluoroethylene.
2. The utility model provides a mounting structure of resistant negative pressure tetrafluoro inside lining which characterized in that: comprising the negative pressure resistant tetrafluoro lining according to claim 1 and a cylinder (3), wherein the negative pressure resistant tetrafluoro lining is mounted on the inner wall of the cylinder (3) and the support strips (2) avoid the pipe orifice on the cylinder (3).
3. The negative pressure resistant tetrafluoro liner mounting structure as claimed in claim 2, wherein: the pipe orifice on the barrel (3) comprises a crude methanol outlet (301), a thermometer orifice (302) and a remote liquid level meter orifice (303) which are arranged at the lower part of the barrel (3).
4. The negative pressure resistant tetrafluoro liner mounting structure as claimed in claim 2, wherein: lifting lugs (304) are arranged on the upper portion of the cylinder body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321570321.6U CN220134852U (en) | 2023-06-19 | 2023-06-19 | Negative pressure-resistant tetrafluoro lining and mounting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321570321.6U CN220134852U (en) | 2023-06-19 | 2023-06-19 | Negative pressure-resistant tetrafluoro lining and mounting structure thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220134852U true CN220134852U (en) | 2023-12-05 |
Family
ID=88958558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321570321.6U Active CN220134852U (en) | 2023-06-19 | 2023-06-19 | Negative pressure-resistant tetrafluoro lining and mounting structure thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220134852U (en) |
-
2023
- 2023-06-19 CN CN202321570321.6U patent/CN220134852U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |