CN105042269A - Acid-base-resisting leakage preventing end cap - Google Patents
Acid-base-resisting leakage preventing end cap Download PDFInfo
- Publication number
- CN105042269A CN105042269A CN201510389341.7A CN201510389341A CN105042269A CN 105042269 A CN105042269 A CN 105042269A CN 201510389341 A CN201510389341 A CN 201510389341A CN 105042269 A CN105042269 A CN 105042269A
- Authority
- CN
- China
- Prior art keywords
- layer
- teflon
- valve rod
- rotating body
- packing layer
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/11—Plugs
Abstract
The invention discloses an acid-base-resisting leakage preventing end cap connected with a pipeline flange plate. The end cap comprises a valve rod, a polytetrafluoroethylene inner padding layer, a polytetrafluoroethylene outer padding layer and a leakage stopping rotary body. The polytetrafluoroethylene inner padding layer is connected with an inner pressing plate, and the inner pressing plate and the polytetrafluoroethylene inner padding layer are arranged on the inner side of a pipeline flange. The polytetrafluoroethylene outer padding layer is connected with an outer pressing plate. The acid-base-resisting leakage preventing end cap provides a guarantee for conveying of pipeline valve liquid, is capable of quickly stopping leakage and is convenient to use, simple and safe.
Description
Technical field
The present invention relates to fluorine plastic product field, particularly relate to a kind of acid resistant alkali leakproof plug.
Background technique
Fluoroplastic have excellent chemical stability, at highly basic, under strong acid etc. dislike routine environment, be used widely, there is excellent sealability, can resistance to strong acid, strong alkali environment, is widely used in reacting pipe, reactor, use as seal arrangement, existing acid resistant alkali leakproof plug mostly adopts metal material or PVC material, PVC material insufficient strength, the resistance to strong acid poor performance of metallic material, the invention provides a kind of acid resistant alkali leakproof plug, be applicable to various complex environment, the life-span is long for this reason.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of acid resistant alkali leakproof plug, and structure is simple, is applicable to various rugged environment.
Described a kind of acid resistant alkali leakproof plug, be connected with pipeline flanges, described plug comprises: valve rod, Teflon inner packing layer, the outside packing layer of teflon, and leak stopping rotating body, be connected with inner clip plate at described Teflon inner packing layer, inner clip plate and Teflon inner packing layer are arranged on inside piping flange, connect be provided with outer plate at the outside packing layer of described teflon.
Between described Teflon inner packing layer and the outside packing layer of teflon, be also provided with intermediate washer, intermediate washer adopts teflon and polyparaphenylene phenol mixture to make.
Teflon is commonly called as PFA resin, the fluoroplastic of newer melt-processable, the fusing point of PFA is high, density is 2.13 grams/cc to 2.16 grams/cc, PFA is heat-resisting, cold-resistant, chemical stability, mechanicalness, insulating properties, self lubricity, folding resistance, resistance to cracking is excellent, simultaneously, PPL is added in filler, PPL is polyparaphenylene phenol, metallurgical, ideal wear-resisting in the industries such as chemical industry, sealing material, high life, high temperature resistant, simultaneously, polyparaphenylene good thermal stability, corrosion resistance, self-lubricating property is better than molybdenum disulfide and graphite, the molecular chain of PPL, due to very large rigidity and regularity, make it cannot not be molten insoluble, self machine shaping difficulty, the blended use of other materials need be filled.
Intermediate washer effect is, prevents fluid flow excessive, reduces the effect of leakproof plug pressure at two ends.
Described valve rod periphery is coated with leak stopping rotating body, leak stopping rotating body is divided into double-layer structure, internal layer is packed layer, skin is metal material layer, between metal material layer and outer plate, be provided with metal bump simultaneously, the object of metal bump makes leakproof plug play better sealing effect, avoids the difference of metal and fluoroplastic expansion coefficient, to the injury that extruding metal causes simultaneously.
Rotary sleeve is provided with inside valve rod, leak stopping rotating body can rotate along valve rod, and then adjustment leak stopping rotating body is relative to the relative upper-lower position of valve rod, the sealing of complete twin conduit, for the ease of rotating, meanwhile, be provided with rotatable handle in described valve rod lower end, pass through handle, complete rotation, after adjusting to correct position, leak stopping rotating body is also provided with stopper, fixes leak stopping rotating body and valve rod by stopper.
A kind of optimal technical scheme, in order to fastening to the sealing of pipeline, is provided with extension spring at described stem internal, plays fastening plug effect by pulling force.
Described packed layer, adopts calcium stearate and carbofrax material.
Described metal material layer, adopts copper metallic material or aluminum alloy material.
A kind of optimal technical scheme, in order to make acid resistant alkali leakproof plug have better sealing effect, described intermediate washer being provided with glass fibre and aramid fiber mixing fastening ring, improving sealing effect further.
The invention has the beneficial effects as follows: a kind of acid resistant alkali leakproof of the present invention plug, for the transmission of pipeline valve liquid provides safeguard, can instantaneous leaking-stopping, easy to use, succinct safety.
Accompanying drawing explanation
Fig. 1 is a kind of acid resistant alkali leakproof of the present invention stopper structure schematic diagram;
In accompanying drawing, the mark of each parts is as follows:
1 is pipeline flanges, and 2 is valve rod, and 21 is extension spring, 3 is Teflon inner packing layer, and 31 is inner clip plate, and 4 is the outside packing layer of teflon, 41 is outer plate, and 5 is leak stopping rotating body, and 51 is packed layer, 52 is metal material layer, 521 metal bump, 6 is intermediate washer, and 7 is rotary sleeve, 71 is rotatable handle, and 8 is stopper.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present invention is described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
Refer to Fig. 1, the embodiment of the present invention comprises:
Described a kind of acid resistant alkali leakproof plug, be connected with pipeline flanges, described plug comprises: valve rod, Teflon inner packing layer, the outside packing layer of teflon, and leak stopping rotating body, be connected with inner clip plate at described Teflon inner packing layer, inner clip plate and Teflon inner packing layer are arranged on inside piping flange, connect be provided with outer plate at the outside packing layer of described teflon.
Between described Teflon inner packing layer and the outside packing layer of teflon, be also provided with intermediate washer, intermediate washer adopts teflon and polyparaphenylene phenol mixture to make.
Teflon is commonly called as PFA resin, the fluoroplastic of newer melt-processable, the fusing point of PFA is high, density is 2.13 grams/cc to 2.16 grams/cc, PFA is heat-resisting, cold-resistant, chemical stability, mechanicalness, insulating properties, self lubricity, folding resistance, resistance to cracking is excellent, simultaneously, PPL is added in filler, PPL is polyparaphenylene phenol, metallurgical, ideal wear-resisting in the industries such as chemical industry, sealing material, high life, high temperature resistant, simultaneously, polyparaphenylene good thermal stability, corrosion resistance, self-lubricating property is better than molybdenum disulfide and graphite, the molecular chain of PPL, due to very large rigidity and regularity, make it cannot not be molten insoluble, self machine shaping difficulty, the blended use of other materials need be filled.
Intermediate washer effect is, prevents fluid flow excessive, reduces the effect of leakproof plug pressure at two ends.
Described valve rod periphery is coated with leak stopping rotating body, leak stopping rotating body is divided into double-layer structure, internal layer is packed layer, skin is metal material layer, between metal material layer and outer plate, be provided with metal bump simultaneously, the object of metal bump makes leakproof plug play better sealing effect, avoids the difference of metal and fluoroplastic expansion coefficient, to the injury that extruding metal causes simultaneously.
Rotary sleeve is provided with inside valve rod, leak stopping rotating body can rotate along valve rod, and then adjustment leak stopping rotating body is relative to the relative upper-lower position of valve rod, the sealing of complete twin conduit, for the ease of rotating, meanwhile, be provided with rotatable handle in described valve rod lower end, pass through handle, complete rotation, after adjusting to correct position, leak stopping rotating body is also provided with stopper, fixes leak stopping rotating body and valve rod by stopper.
A kind of optimal technical scheme, in order to fastening to the sealing of pipeline, is provided with extension spring at described stem internal, plays fastening plug effect by pulling force.
Described packed layer, adopts calcium stearate and carbofrax material.
Described metal material layer, adopts copper metallic material or aluminum alloy material.
A kind of optimal technical scheme, in order to make acid resistant alkali leakproof plug have better sealing effect, described intermediate washer being provided with glass fibre and aramid fiber mixing fastening ring, improving sealing effect further.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (3)
1. an acid resistant alkali leakproof plug, it is characterized in that, described acid resistant alkali leakproof plug is connected with pipeline flanges, described plug comprises: valve rod, Teflon inner packing layer, the outside packing layer of teflon, with leak stopping rotating body, inner clip plate is connected with at described Teflon inner packing layer, inner clip plate and Teflon inner packing layer are arranged on inside piping flange, connect at the outside packing layer of described teflon and be provided with outer plate, also intermediate washer is provided with between described Teflon inner packing layer and the outside packing layer of teflon, valve rod periphery is coated with leak stopping rotating body, leak stopping rotating body is divided into double-layer structure, internal layer is packed layer, skin is metal material layer, between metal material layer and outer plate, be provided with metal bump simultaneously, rotary sleeve is provided with inside valve rod, simultaneously, rotatable handle is provided with in described valve rod lower end, leak stopping rotating body is also provided with stopper, leak stopping rotating body and valve rod is fixed by stopper, described packed layer, adopt calcium stearate and carbofrax material, described metal material layer, adopt copper metallic material or aluminum alloy material.
2. acid resistant alkali leakproof plug according to claim 1, is characterized in that, be provided with extension spring at described stem internal, plays fastening plug effect by pulling force.
3. acid resistant alkali leakproof plug according to claim 1, is characterized in that, in order to make acid resistant alkali leakproof plug have better sealing effect, described intermediate washer being provided with glass fibre and aramid fiber mixing fastening ring, improving sealing effect further.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510389341.7A CN105042269A (en) | 2015-07-06 | 2015-07-06 | Acid-base-resisting leakage preventing end cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510389341.7A CN105042269A (en) | 2015-07-06 | 2015-07-06 | Acid-base-resisting leakage preventing end cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105042269A true CN105042269A (en) | 2015-11-11 |
Family
ID=54449067
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510389341.7A Pending CN105042269A (en) | 2015-07-06 | 2015-07-06 | Acid-base-resisting leakage preventing end cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105042269A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911245A (en) * | 2016-04-06 | 2016-08-31 | 清华大学 | Centrifugal-field slope excavation simulation device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454099A (en) * | 2012-05-29 | 2013-12-18 | 飞翼股份有限公司 | Pipe blockage detecting device for paste filling pipelines |
| CN203442412U (en) * | 2013-07-31 | 2014-02-19 | 周其锋 | Cover sealing assembly for pipeline opening |
| CN203463859U (en) * | 2013-06-30 | 2014-03-05 | 金川集团股份有限公司 | Thief hole sealing cap for rapidly detachable gas pipe |
| CN203549271U (en) * | 2013-10-16 | 2014-04-16 | 江苏泰阳消防器材有限公司 | Bonded-type leakage-stopping set |
| EP1963730B1 (en) * | 2005-11-30 | 2014-05-21 | Gdf Suez | Device and method for drilling a pipeline provided with a derivation plate |
-
2015
- 2015-07-06 CN CN201510389341.7A patent/CN105042269A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1963730B1 (en) * | 2005-11-30 | 2014-05-21 | Gdf Suez | Device and method for drilling a pipeline provided with a derivation plate |
| CN103454099A (en) * | 2012-05-29 | 2013-12-18 | 飞翼股份有限公司 | Pipe blockage detecting device for paste filling pipelines |
| CN203463859U (en) * | 2013-06-30 | 2014-03-05 | 金川集团股份有限公司 | Thief hole sealing cap for rapidly detachable gas pipe |
| CN203442412U (en) * | 2013-07-31 | 2014-02-19 | 周其锋 | Cover sealing assembly for pipeline opening |
| CN203549271U (en) * | 2013-10-16 | 2014-04-16 | 江苏泰阳消防器材有限公司 | Bonded-type leakage-stopping set |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105911245A (en) * | 2016-04-06 | 2016-08-31 | 清华大学 | Centrifugal-field slope excavation simulation device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151111 |