CN2268830Y - Pipeline leakage bounding tape under working pressure - Google Patents
Pipeline leakage bounding tape under working pressure Download PDFInfo
- Publication number
- CN2268830Y CN2268830Y CN 96227862 CN96227862U CN2268830Y CN 2268830 Y CN2268830 Y CN 2268830Y CN 96227862 CN96227862 CN 96227862 CN 96227862 U CN96227862 U CN 96227862U CN 2268830 Y CN2268830 Y CN 2268830Y
- Authority
- CN
- China
- Prior art keywords
- rubber
- strapping strand
- rubber layer
- working pressure
- utility
- 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 - Lifetime
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Abstract
The utility model relates to a pipeline leakage bundling tape under working pressure, which belongs to the maintenance and repair material of chemical equipment. The utility model forms the shape of a belt, and is characterized in that a rubber layer is compounded on a fibre fabric belt. The bundling tape has the advantages of good corrosion resistance, high temperature resistance, and high strength. The adoption of the bundling tape can complete leakage protection under working pressure through directly winding and bundling. The utility model is suitable for straight pipelines, and is also suitable for leakage protection processing for screw threads, welding openings, etc., with the advantages of simplicity, practical design, and good effect.
Description
The utility model relates to a kind of pressure sealing strapping strand of pipeline, belongs to the maintenance and repair material of chemical industry equipment.
In the conveyance conduit of chemical industry equipment, the pressure sealing mode has three kinds: (1) makes covering leaks clamping leak source is encased, and with the high-pressure injection plastic rifle sealer is injected the jig cavity then, to stop leakage; (2) tie up leak stopping with steel band; (3) it is bonding to stick with glue agent.First method is made the time-consuming material that takes of jig, and easily the tube wall of attenuate is shriveled during injecting glue; Second method is tied up leak stopping with steel band and can only be blocked a bit, and the short time is kept production, and adopts the steel band strapping to handle to screwed connection position and weld bond; The third method, it is bonding to stick with glue agent, and because of band is pressed and dielectric leakage, tackiness agent is difficult for solidifying, and does not form intensity, does not reach the effect of leak stopping.
The purpose of this utility model is to provide a kind of pressure sealing strapping strand of pipeline, uses this strapping strand can directly twine to tie up and finishes pressure sealing, and simple and easy to do, plugging effect is good, applied range.
The purpose of this utility model can be realized by following scheme:
The pressure sealing strapping strand of described pipeline is banded, it is characterized in that main structure is to be compounded with rubber layer on the fabric band.
Rubber has preferably the bullet tensile property that contracts, to guarantee that strapping strand can tightly wrap.
Consider from the angle of making and easy construction, can be at all compound rubber layer in the two sides of fabric.
In order to strengthen decay resistance, the outside of rubber layer can compound again one deck PTFE.
Fabric is made up of warp and the rarer fine filling line of density that several strands of strands merge twisting.Warp bears whole fastening pressures of strapping strand, and parallel only works to link warp, and keeps warp evenly distributed, makes it be unlikely disorderly in the processing process.
The fiber of fabric is one or more the combination in polyamide fiber, polyster fibre, the glass fibre.According to different performance requirements, can select different fabrics.
(1) polyamide fiber:
Claim polyamide fibre 66 and polyamide fibre 6 again, or nylon 66 and nylon 6, the key property of nylon fibre is as follows:
(1) intensity height, impact resistance are good, are higher a kind of of intensity in the present synthetic fiber.
(2) elasticity height, fatigue resistance is good, is extending 30% o'clock, and its rebound degree is 98～100%.
(3) heat resistance and thermostability below 100～110 ℃, are heated usually for a long time than polyster fibre difference, and its performance is not suffered a loss, and its softening point temperature is 180 ℃.
(4) wear resistance is good, is better than other all fibers, and is higher approximately 4 times than polyster fibre.
(5) at room temperature, nylon fibre can be dissolved in dense inorganic acid, dense formic acid, benzoic acid and homologous compound thereof; When heating, be dissolvable in water in glacial acetic acid, formamide, benzyl alcohol and the chlorethanol.Be insoluble to hydro carbons, halogenated hydrocarbon, alcohols, ketone and ethers equal solvent.
(2) key property of polyster fibre:
(1) the strength ratio nylon fibre of polyster fibre is low slightly, and its impact strength is higher 4 times than polyamide fiber.
(2) elasticity height, fatigue resistance are good, and when extending 3%, rebound degree is 100%.
(3) heat resistance of polyster fibre and better heat stability.Heating is 168 hours in 150 ℃ hot air, and intensity only loses 15～30%, be heated 1000 hours, and loss of strength 50%, and general fiber just decomposed through 200～300 hours with this understanding.
(4) wear resistance is only second to nylon fibre, is better than other natural fibre.
(5) polyster fibre is acidproof not alkaline-resisting, and is more stable to oxygenant and reducing agent, and anti-trichloroethanes, carbon tetrachloride, acetone, benzene, toluene, alcohol, gasoline and most of petroleum products can make its swelling even dissolving but chlorine spins solution, benzoic acid and derivative thereof.
(3) glass fibre:
Glass fibre is a kind of manmade inorganic fibre, by the chemical composition classification, generally can be divided into E glass, C glass and S glass.We adopt is that the fiber of rubber industry is formed by E glass spinning.
The key property of glass fibre is as follows:
(1) intensity height.
(2) modulus height, specific elongation is low, and dimensional stability is good.
(3) good heat resistance, in the time of 300 ℃, performance is unaffected in the short time, through 24 hours, reduction in strength 20%, only descending 30%, 846 ℃ 480 ℃ of intensity dissolves.
(4) chemical stability is good, and it is not subjected to the influence of oils, acids and corrosivity steam except having an effect with hydrofluoric acid and hot phosphoric acid; But the hot solution of weak base and the cold soln of highly basic have corrosive action to it.It is insoluble to organic solvent, also has the superperformance of anti-other chemicals.
The rubber layer of strapping strand is made up of in natural rubber, general synthetic cement, nitrile butadiene rubber, neoprene, ethylene propylene diene rubber, styrene butadiene rubber, fluorine rubber, the silicone rubber one or more.According to the different performance requirement of required strapping strand, can select.
Utilize this strapping strand to tighten by force leak source is blocked, simultaneously, strapping strand obtains heat from leaking medium, and crosslinking curing forms firm sealing configuration rapidly, thereby has guaranteed the normal operation of producing.
As seen, the utlity model has following advantage:
(1) use this strapping strand can directly twine to tie up and finish pressure sealing, simple and easy to do, plugging effect is good, not only is suitable for straight shape pipeline, and is suitable for the leak stopping processing at positions such as screw thread, weld bond, applied range.
(2) can select applied range as required to chemical property.
(3) have very high longitudinal strength, be beneficial to tighten by force and inner combination, have good workability.
(4) nontoxic, pollution-free, non-corrosiveness, damage equipment not.
(5) under medium temperature, crosslinking curing constitutes firm high elasticity sealing configuration, and can keep performance constant under medium temperature for a long time rapidly.
(6) under temperature is not higher than 20 ℃ storage requirement, can deposit more than half a year, still keep performance constant.
During the utility model is suitable for, the leak stopping of the leaking medium of low-pressure and different temperatures.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1, sectional view of the present utility model also are an embodiment.
Among the figure: 1,3 rubber layers, 2 fiber fabric layers, 4 PTFE layers.
As shown in the figure, the two sides of fabrics of polyester belt 2 is compounded with rubber layer 1,3, the compound one deck PTFE 4 in the outside of rubber layer 1,3.Wherein, the parts by weight of rubber layer batching composition are:
100 parts of nitrile butadiene rubbers
2～3 parts of vulcanization crosslinking agent
3～7 parts of vulcanizing activators
60～80 parts of packing strengthening agents
10～20 parts in softening plasticizing agent
2～3 parts of age resisters
More than the elastomeric compound of Zu Chenging is dissolved as rubber cement in acetone, and the rubber cement brush on fabric, is adopted the calendering technology calendering, makes the fiber rubber band, and compound one deck PTFE makes strapping strand of the present utility model in the outside of rubber tape again.This strapping strand oil resistant, resistant to chemical media good stability, the intensity height, the breaking strength behind its crosslinking curing can be up to 15MPa (150kgf/cm
2) more than.
Claims (6)
1, a kind of pressure sealing strapping strand of pipeline is banded, it is characterized in that main structure is to be compounded with rubber layer on the fabric band.
2, strapping strand according to claim 1 is characterized in that the two sides of fabric band all is compounded with rubber layer.
3, strapping strand according to claim 1 and 2 is characterized in that the compound one deck PTFE in outside of rubber layer.
4, strapping strand according to claim 1 and 2 is characterized in that fabric merges the warp and the rarer fine filling line of density of twisting by several strands of strands and forms.
5, strapping strand according to claim 1 and 2, the fiber that it is characterized in that fabric are one or more the combination in polyamide fiber, polyster fibre, the glass fibre.
6, strapping strand according to claim 1 and 2 is characterized in that rubber layer is made up of in natural rubber, general synthetic cement, nitrile butadiene rubber, neoprene, ethylene propylene diene rubber, styrene butadiene rubber, fluorine rubber, the silicone rubber one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96227862 CN2268830Y (en) | 1996-05-10 | 1996-05-10 | Pipeline leakage bounding tape under working pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96227862 CN2268830Y (en) | 1996-05-10 | 1996-05-10 | Pipeline leakage bounding tape under working pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2268830Y true CN2268830Y (en) | 1997-11-26 |
Family
ID=33905869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96227862 Expired - Lifetime CN2268830Y (en) | 1996-05-10 | 1996-05-10 | Pipeline leakage bounding tape under working pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2268830Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756118A (en) * | 2013-12-31 | 2014-04-30 | 上海海事大学 | Annular strapping tape for deep sea buoyancy material strapping system and preparation method thereof |
| CN103756162A (en) * | 2013-12-31 | 2014-04-30 | 上海海事大学 | Strapping tape for deep sea buoyancy material and preparation method thereof |
| CN110185878A (en) * | 2019-05-05 | 2019-08-30 | 泉州市燃气有限公司 | A kind of plugging device for natural gas line repairing |
-
1996
- 1996-05-10 CN CN 96227862 patent/CN2268830Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103756118A (en) * | 2013-12-31 | 2014-04-30 | 上海海事大学 | Annular strapping tape for deep sea buoyancy material strapping system and preparation method thereof |
| CN103756162A (en) * | 2013-12-31 | 2014-04-30 | 上海海事大学 | Strapping tape for deep sea buoyancy material and preparation method thereof |
| CN103756162B (en) * | 2013-12-31 | 2016-02-03 | 上海海事大学 | A kind of deep-sea buoyancy material strapping tape and preparation method thereof |
| CN103756118B (en) * | 2013-12-31 | 2017-01-04 | 上海海事大学 | Can be used for circumferential band of deep-sea buoyant material bounding system and preparation method thereof |
| CN110185878A (en) * | 2019-05-05 | 2019-08-30 | 泉州市燃气有限公司 | A kind of plugging device for natural gas line repairing |
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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 | ||
| CX01 | Expiry of patent term |