CN213177254U - Minor diameter tetrafluoro compensator of resistant full negative pressure - Google Patents
Minor diameter tetrafluoro compensator of resistant full negative pressure Download PDFInfo
- Publication number
- CN213177254U CN213177254U CN202021850450.7U CN202021850450U CN213177254U CN 213177254 U CN213177254 U CN 213177254U CN 202021850450 U CN202021850450 U CN 202021850450U CN 213177254 U CN213177254 U CN 213177254U
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- Prior art keywords
- compensator
- tetrafluoro
- negative pressure
- middle pressing
- plate
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- 229920001343 polytetrafluoroethylene Polymers 0.000 claims abstract description 31
- 239000004810 polytetrafluoroethylene Substances 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract description 4
- -1 polytetrafluoroethylene Polymers 0.000 description 15
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002905 metal composite material Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
A small-diameter tetrafluoro compensator resisting full negative pressure comprises a compensator, wherein the compensator comprises a flange plate, a middle pressing plate and a flanging type tetrafluoro, the number of the flange plate and the number of the flanging type tetrafluoro are respectively 2, and the number of the middle pressing plate is 1; the flange plate, the flanging type PTFE and the flange plate are sequentially arranged from left to right and are formed by adopting a whole plate, and 2 flanging type PTFE are clamped by an intermediate pressing plate; the middle pressing plate comprises a middle pressing ring threaded side and a middle pressing ring unthreaded hole side, and the middle pressing ring threaded side and the middle pressing ring unthreaded hole side are respectively arranged on the right outer side and the left outer side of the flanging type PTFE. Resistant minor diameter tetrafluoro compensator of full negative pressure, structural design is reasonable, adopts the whole board shaping, 2 individual turn-ups formula tetrafluoro press from both sides tightly through the intermediate pressure board, solved the technical problem that the easy inefficacy was under resistant malleation of minor diameter tetrafluoro compensator, not resistant negative pressure, the high vacuum operating condition, improved resistant negative pressure ability.
Description
Technical Field
The utility model relates to a compensator technical field, concretely relates to minor diameter tetrafluoro compensator of resistant full negative pressure.
Background
The tetrafluoro compensator is an indispensable key part for compensating displacement caused by expansion with heat and contraction with cold in an anti-corrosion pipeline in the industries of nonferrous smelting, petrochemical industry, flue gas acid making and the like. Currently, the tetrafluoro compensator at home and abroad is mainly classified into four types: (1) pure polytetrafluoroethylene compensator: (2) a polytetrafluoroethylene rubber composite compensator; (3) a polytetrafluoroethylene metal composite compensator; (4) a polytetrafluoroethylene metal net sleeve composite compensator. The other three compensators except the first compensator are provided with reinforcing layers which have great effect on improving the positive pressure resistance of the product, but can not improve the negative pressure resistance of the product at all. Therefore, under the condition of negative pressure, the air is often deflated and scrapped, thereby causing shutdown and production halt and causing serious loss.
In addition, the traditional small-caliber tetrafluoro compensator with the diameter of about 100mm is turned, so that the cost is high, negative pressure difference is resisted, a steel wire mesh or rubber and the like are wrapped outside the compensator, the compensator is resistant to positive pressure but not negative pressure, and the compensator is easy to lose effectiveness under the high-vacuum working condition. In order to improve the negative pressure resistance, a stainless steel wire ring is added on the inner side, but the wire ring is easy to corrode and lose efficacy. In order to solve the problems, a small-diameter tetrafluoro compensator resisting full negative pressure needs to be developed, and the small-diameter tetrafluoro compensator has a good application prospect.
Chinese patent application No. CN201821075087.9 discloses a polytetrafluoroethylene compensator, which comprises a compensator mold and a polytetrafluoroethylene compensator, wherein the compensator mold is single-wave or multi-wave, and the compensator mold is made of stainless steel, which does not improve the negative pressure resistance of the polytetrafluoroethylene compensator.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome not enough above, the utility model aims at providing a minor diameter tetrafluoro compensator of resistant full negative pressure adopts the shaping of whole board, and 2 turn-ups formula tetrafluoro is pressed from both sides tightly through the intermediate pressure board, has solved the technical problem that minor diameter tetrafluoro compensator became invalid easily under resistant malleation, the not resistant negative pressure of minor diameter tetrafluoro compensator, the high vacuum operating condition, has improved resistant negative pressure ability, and application prospect is extensive.
The technical scheme is as follows: a small-diameter tetrafluoro compensator resisting full negative pressure comprises a compensator, wherein the compensator comprises a flange plate, a middle pressing plate and a flanging type tetrafluoro, the number of the flange plate and the number of the flanging type tetrafluoro are respectively 2, and the number of the middle pressing plate is 1; the flange plate, the flanging type PTFE and the flange plate are sequentially arranged from left to right and are formed by adopting a whole plate, and 2 flanging type PTFE are clamped by an intermediate pressing plate; the middle pressing plate comprises a middle pressing ring threaded side and a middle pressing ring unthreaded hole side, and the middle pressing ring threaded side and the middle pressing ring unthreaded hole side are respectively arranged on the right outer side and the left outer side of the flanging type PTFE.
Resistant minor diameter tetrafluoro compensator of full negative pressure, structural design is reasonable, be different from about 100mm among the prior art minor diameter tetrafluoro compensator adopt turning (with high costs, anti negative pressure difference) and outer wrapping up wire net or rubber isotructure, the compensator adopts whole board shaping on the whole, can not produce the problem that glue became invalid, the wire net corrodes or rubber became invalid to 2 turn-ups formula tetrafluoro is pressed from both sides tightly through intermediate pressing plate.
When the polytetrafluoroethylene compensator is used, the flanging type polytetrafluoroethylene is inwards tightened under the condition of high negative pressure, the middle pressing plate bears inward pulling force, the capacity of bearing the inward pulling force of the middle pressing plate is far greater than the inward pulling force generated by the negative pressure, so that the polytetrafluoroethylene compensator is not easy to deform, the high negative pressure is kept for a long time without failure, the negative pressure resistance is improved, and the technical problem that the polytetrafluoroethylene compensator with the small diameter is easy to fail under the working conditions of positive pressure resistance, negative pressure resistance and high vacuum is solved.
Further, in the small-diameter tetrafluoro compensator resistant to full negative pressure, the compensator comprises a flange plate and an intermediate pressing plate both made of SUS304, and the flanging type tetrafluoro material is PTFE.
Furthermore, in the small-diameter tetrafluoro compensator with full negative pressure resistance, the upper part and the lower part of the outer wall of the flange plate are provided with the lug plates, and the lug plates are provided with the first threaded holes.
Further, in the small-diameter tetrafluoro compensator with full negative pressure resistance, a plurality of second threaded holes are circumferentially arranged on the outer wall of the flange plate, and the aperture of the second threaded holes is smaller than that of the first threaded holes.
Furthermore, in the small-diameter tetrafluoro compensator resisting full negative pressure, a plurality of threaded holes III are circumferentially arranged on the outer wall of the thread side of the middle pressing ring.
Further, in the small-diameter tetrafluoro compensator resisting full negative pressure, a plurality of unthreaded holes are circumferentially arranged on the outer wall of the unthreaded hole side of the middle pressing ring.
The utility model has the advantages that: the small-diameter tetrafluoro compensator with full negative pressure resistance of the utility model has reasonable structural design, is different from the small-diameter tetrafluoro compensator with about 100mm in the prior art which adopts turning (high cost and negative pressure difference resistance) and outer wrapping steel wire mesh or rubber and other structures, the compensator is integrally formed by a whole plate, the problems of glue failure, steel wire mesh corrosion or rubber failure can not be caused, and 2 flanging tetrafluoros are clamped by the middle pressure plate, when in use, the flanging tetrafluoros are tightened inwards under the condition of high negative pressure, the middle pressure plate bears inward pulling force, because the capability of bearing the inward pulling force of the middle pressing plate is far greater than the inward pulling force generated by negative pressure, the middle pressing plate is not easy to deform, high negative pressure is generated for a long time without failure, the negative pressure resistance capability is improved, and the technical problem that the small-diameter tetrafluoro compensator is easy to fail under the working conditions of positive pressure resistance, negative pressure resistance and high vacuum is solved.
Drawings
Fig. 1 is a front view of a small-diameter tetrafluoro compensator resistant to full negative pressure according to the present invention;
fig. 2 is a sectional view of the small diameter tetrafluoro compensator of the present invention with full negative pressure resistance a-a;
fig. 3 is a schematic view of the overall structure of the small-diameter tetrafluoro compensator with full negative pressure resistance according to the present invention;
in the figure: compensator 1, flange plate 11, ear plate 111, screw hole one 112, screw hole two 113, middle pressure plate 12, flanging type tetrafluoro 13, middle pressing ring screw thread side 121, middle pressing ring unthreaded hole side 122 and screw hole three a.
Detailed Description
The invention will be further elucidated with reference to the accompanying figures 1-3 and the specific embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The small-diameter tetrafluoro compensator with the above structure, as shown in fig. 1, 2 and 3, includes a compensator 1, where the compensator 1 includes a flange plate 11, an intermediate pressure plate 12 and a flanged tetrafluoro 13, the number of the flange plate 11 and the flanged tetrafluoro 13 is 2, and the number of the intermediate pressure plate 12 is 1; the flange plate 11, the flanging type PTFE 13 and the flange plate 11 are sequentially arranged from left to right and are formed by adopting a whole plate, and 2 flanging type PTFE 13 are clamped by the middle pressing plate 12; the middle pressing plate 12 comprises a middle pressing ring threaded side 121 and a middle pressing ring unthreaded hole side 122, wherein the middle pressing ring threaded side 121 and the middle pressing ring unthreaded hole side 122 are respectively arranged on the right outer side and the left outer side of the 2 flanging type tetrafluoros 13.
In addition, the compensator 1 comprises a flange plate 11 and an intermediate pressure plate 12 which are both made of SUS304, and the flanging type PTFE 13 material is PTFE.
Furthermore, the upper and lower parts of the outer wall of the flange plate 11 are provided with lug plates 111, and the lug plates 111 are provided with first threaded holes 112.
Further, a plurality of second threaded holes 113 are circumferentially arranged on the outer wall of the flange plate 11, and the diameter of the second threaded holes 113 is smaller than that of the first threaded holes 112.
Furthermore, a plurality of threaded holes III are circumferentially arranged on the outer wall of the threaded side 121 of the middle pressing ring.
Further, a plurality of light holes are circumferentially arranged on the outer wall of the light hole side 122 of the middle pressing ring.
Examples
The structural basis is as shown in FIGS. 1 to 3.
Resistant minor diameter tetrafluoro compensator of full negative pressure, structural design is reasonable, be different from about 100mm among the prior art minor diameter tetrafluoro compensator adopt turning (with high costs, anti negative pressure difference) and outer wrapping up wire net or rubber isotructure, compensator 1 adopts whole board shaping on the whole, can not produce the problem that glue became invalid, the wire net corrodes or rubber became invalid to 2 turn-ups formula tetrafluoro 13 presss from both sides tightly through intermediate pressure board.
When the polytetrafluoroethylene compensator is used, the flanging type polytetrafluoroethylene 13 is inwardly tightened under the condition of high negative pressure, the middle pressing plate 12 bears inward tensile force, and the capacity of bearing the inward tensile force of the middle pressing plate 12 is far greater than the inward tensile force generated by the negative pressure, so that the polytetrafluoroethylene compensator is not easy to deform, does not lose efficacy due to long-time high negative pressure, improves the negative pressure resistance, and solves the technical problem that the small-diameter polytetrafluoroethylene compensator is easy to lose efficacy under the working conditions of positive pressure resistance, negative pressure resistance and high vacuum.
The compensator 1 comprises a flange plate 11 and an intermediate pressure plate 12 which are made of SUS304, and the flanging type PTFE 13 is made of PTFE.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
In addition, the embodiments of the present invention can be arbitrarily combined with each other, and the same shall be regarded as the disclosure of the present invention as long as the idea of the present invention is not violated.
Claims (6)
1. The small-diameter tetrafluoro compensator resistant to full negative pressure is characterized by comprising a compensator (1), wherein the compensator (1) comprises a flange plate (11), a middle pressing plate (12) and a flanging type tetrafluoro (13), the number of the flange plate (11) and the number of the flanging type tetrafluoro (13) are respectively 2, and the number of the middle pressing plate (12) is 1; the flange plate (11), the flanging type PTFE (13) and the flange plate (11) are sequentially arranged from left to right and are formed by adopting a whole plate, and 2 flanging type PTFE (13) are clamped by an intermediate pressing plate (12); the middle pressing plate (12) comprises a middle pressing ring threaded side (121) and a middle pressing ring unthreaded hole side (122), and the middle pressing ring threaded side (121) and the middle pressing ring unthreaded hole side (122) are respectively arranged on the right outer side and the left outer side of the flanging type tetrafluoro compound (13).
2. The small-diameter tetrafluoro compensator resisting full negative pressure according to claim 1, characterized in that the compensator (1) comprises flange plates (11) and an intermediate pressure plate (12) both made of SUS304, and the flanged tetrafluoro (13) material is PTFE.
3. The small-diameter tetrafluoro compensator resisting the total negative pressure according to claim 1, characterized in that the upper and lower parts of the outer wall of the flange plate (11) are provided with lug plates (111), and the lug plates (111) are provided with first threaded holes (112).
4. The small-diameter tetrafluoro compensator resisting the full negative pressure according to claim 3, is characterized in that a plurality of second threaded holes (113) are circumferentially arranged on the outer wall of the flange plate (11), and the diameter of the second threaded holes (113) is smaller than that of the first threaded holes (112).
5. The small-diameter tetrafluoro compensator resisting full negative pressure according to claim 1, characterized in that a plurality of threaded holes three are circumferentially arranged on the outer wall of the threaded side (121) of the middle pressing ring.
6. The small diameter tetrafluoro compensator resisting full negative pressure according to claim 1, characterized in that a plurality of unthreaded holes are circumferentially arranged on the outer wall of the unthreaded hole side (122) of the intermediate pressing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021850450.7U CN213177254U (en) | 2020-08-31 | 2020-08-31 | Minor diameter tetrafluoro compensator of resistant full negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021850450.7U CN213177254U (en) | 2020-08-31 | 2020-08-31 | Minor diameter tetrafluoro compensator of resistant full negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213177254U true CN213177254U (en) | 2021-05-11 |
Family
ID=75768525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021850450.7U Expired - Fee Related CN213177254U (en) | 2020-08-31 | 2020-08-31 | Minor diameter tetrafluoro compensator of resistant full negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213177254U (en) |
-
2020
- 2020-08-31 CN CN202021850450.7U patent/CN213177254U/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: 20210511 |