CN211604812U - Fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe - Google Patents
Fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe Download PDFInfo
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- CN211604812U CN211604812U CN201922278358.1U CN201922278358U CN211604812U CN 211604812 U CN211604812 U CN 211604812U CN 201922278358 U CN201922278358 U CN 201922278358U CN 211604812 U CN211604812 U CN 211604812U
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Abstract
The utility model discloses a fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe, which comprises a polytetrafluoroethylene inner liner layer, a stainless steel base layer, a silicone rubber glass fiber sleeve layer and an aluminum foil layer from inside to outside; annular convex parts are arranged at two end ports of the stainless steel base layer, and flange bolt holes are formed in the annular convex parts; and two ends of the polytetrafluoroethylene lining layer are provided with flange structures, and the flange structures cover the end faces of the outer side of the annular convex part. The silicone rubber glass fiber sleeve layer is wrapped on the outer side of the stainless steel base layer in a multi-layer wrapping mode, and the wrapping overlapping rate is 15-25%. The aluminum foil layer is wrapped on the outer side of the silicone rubber glass fiber sleeve layer, and the wrapping overlapping rate is 20-25%. The steel lining polytetrafluoroethylene vulcanized pipe has good corrosion resistance to halogen, halohydrocarbon, strong oxidant, boiling acid, alkali and various organic solvents, and can bear the corrosion of the byproducts such as halogen, halohydrocarbon and the like in the vulcanization process of rubber, so that the normal operation of the vulcanization process is ensured.
Description
Technical Field
The utility model relates to a cable manufacturing technical field especially relates to a fluoroplastics is anticorrosive wear-resisting vulcanizes pipe.
Background
In the cable industry, the rubber is mainly used as an insulation and sheath material in a cable product, and the rubber has excellent mechanical property, elasticity and flexibility, so that the cable product taking the rubber as the insulation is mainly used for occasions with high bending, twisting and moving of cables, such as mining cables, marine cables, wind energy cables, moving rubber sleeve flexible wires, geological exploration, petroleum cables and the like. In the production process of the rubber cable, the vulcanization process of the insulation and the sheath is particularly important, and the service performance of the cable is directly influenced. Saturated steam is often adopted in the rubber industry for continuous vulcanization, and under the environment of steam at high temperature and high pressure, halogen-containing rubber can generate halogen substances in the vulcanization process and is dissolved in water, so a vulcanization pipeline is often corroded, particularly, a flange joint, a water vapor balance interface and other special parts are often corroded by iodine, a perforation is formed, steam leakage is caused, the air pressure is reduced, the temperature is reduced, the vulcanization quality is seriously influenced, and the product quality is influenced. On the other hand, the corrosion of the vulcanized pipe requires frequent repair and replacement of the pipe, which causes troubles in production, and the pipe is frequently replaced, which results in high cost. The corrosion of the vulcanized pipe in the continuous vulcanization process is the most troubling problem for cable enterprises.
SUMMERY OF THE UTILITY MODEL
To the problem that above-mentioned exists, the utility model provides a fluoroplastics is anticorrosive wear-resisting vulcanizes pipe mainly is in order to overcome the perishable problem of current stainless steel vulcanizes pipe. The vulcanizing pipeline is a communicated pipeline and is divided into a vulcanizing section and a water cooling section which are communicated with each other, the vulcanizing section and the water cooling section are formed by connecting a plurality of sections of vulcanizing pipes, the upper end of the vulcanizing section is provided with a high-temperature high-pressure steam injection port, and the lower end of the cooling section is provided with a cooling water injection port. The utility model discloses a steel lining polytetrafluoroethylene vulcanizes the pipe, possesses high-efficient anticorrosive ability, overcomes conventional stainless steel vulcanizes the pipe and can not resist high temperature high pressure steam and vulcanize the in-process erosion problem in succession, because of there is a large amount of steam in the vulcanizes the pipe, and rubber produces by-products such as halogen, halohydrocarbon in the vulcanization process, is dissolved in the aqueous solution, has strong corrosivity to the stainless steel. Once the vulcanization pipe is corroded and perforated, steam leaks, vulcanization conditions do not reach the standard, vulcanization quality is affected, and the quality and performance defects of rubber electric wire and cable products are caused.
The utility model discloses a rational design vulcanizes intertube structure and optimization batching, improved hydrogen chloride resistance gas (HCl) performance, practicality and the security of vulcanising the pipe greatly.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe comprises a polytetrafluoroethylene inner liner, a stainless steel base layer, a silicone rubber glass fiber sleeve layer and an aluminum foil layer from inside to outside; annular convex parts are arranged at two end ports of the stainless steel base layer, and flange bolt holes are formed in the annular convex parts; and two ends of the polytetrafluoroethylene lining layer are provided with flange structures, and the flange structures cover the end faces of the outer side of the annular convex part. The utility model discloses 2 ends set up annular convex part, are for the cooperation ring flange with the pipe connection, set up the convenient quick ring flange of will vulcanizing pipe of flange bolt hole and pass through the ring flange fixed. Polytetrafluoroethylene is commonly referred to as a "non-stick coating" or "easy-to-clean material". The material has the characteristics of acid resistance, alkali resistance and various organic solvents resistance, and is almost insoluble in all solvents. Meanwhile, the polytetrafluoroethylene has the characteristic of high temperature resistance, has extremely low friction coefficient, can be used for lubricating, and becomes an ideal coating for easily cleaning the inner layer of the water pipe. The polytetrafluoroethylene has good corrosion resistance to halogen, halogenated hydrocarbon, strong oxidant, boiling acid, alkali and various organic solvents, and the steel-lined polytetrafluoroethylene vulcanized pipe can bear the corrosion of the byproducts such as halogen, halogenated hydrocarbon and the like in the vulcanization process of rubber, so that the normal operation of the vulcanization process is ensured. The utility model discloses in, the inner liner is polytetrafluoroethylene material, has both had fine hydrochloric acid corrosion resistance, has lower coefficient of friction again, has played fine guard action, has reduced the corruption of acid steam to nonrust basic unit by a wide margin.
As a further improvement of the above technical solution:
the silicone rubber glass fiber sleeve layer is wrapped on the outer side of the stainless steel base layer in a multi-layer wrapping mode, and the wrapping overlapping rate is 15-25%. The silicone rubber glass fiber sleeve layer is also called a fireproof sleeve and a high-temperature-resistant sleeve, and is formed by weaving high-purity alkali-free glass fibers into a tube, coating organic silica gel on the outer wall of the tube and carrying out vulcanization treatment. After vulcanization, the rubber can be used for a long time at the temperature of-65-260 ℃ and keep the soft elastic performance, the high temperature resistance, the heat insulation performance, the flame retardant performance, the electric insulation performance, the chemical stability, the weather aging resistance, the cold resistance, the water resistance, the oil resistance, the ozone resistance, the voltage resistance, the electric arc resistance, the corona resistance and the like, particularly the safety and environmental protection performance, and is the best substitute product for dangerous products such as asbestos and the like. The silicone rubber glass fiber sleeve layer can well cope with the expansion and contraction effect of the stainless steel base layer at high temperature, and has good heat preservation effect and good energy conservation. The lapping overlapping rate of 15-25% reduces the corrosion of the outside to the stainless steel base layer, and the stainless steel base layer has a more stable physical and chemical environment.
The aluminum foil layer is wrapped on the outer side of the silicone rubber glass fiber sleeve layer, and the wrapping overlapping rate is 20-25%. The silicon rubber glass fiber sleeve is prevented from being loose, and the phenomenon of leakage and improper local protection is avoided.
The thickness of the aluminum foil layer is 1-2 mm. Thinner aluminium foil layer has better plasticity flexible nature, can be better around the package.
The thickness of the polytetrafluoroethylene lining layer is 3-5 mm. The polytetrafluoroethylene lining layer is easy to damage due to the fact that the polytetrafluoroethylene lining layer is too thin under the long-term high-temperature friction effect, and the thickness of the polytetrafluoroethylene lining layer is 3-5mm, so that the polytetrafluoroethylene lining layer has better tensile strength. The polytetrafluoroethylene inner liner is more difficult to form, the cost is increased, and the too thick flanging structure of the polytetrafluoroethylene inner liner can cause too large gaps in the actual pipe connecting process. The seal structure of turn-ups structure when being regarded as pipe and union coupling simultaneously works as the utility model discloses vulcanize the pipe when with flange joint extension pipeline, turn-ups structure plays fine sealed effect.
The single-layer thickness of the silicone rubber glass fiber sleeve layer is 10-20 mm. Has good wrapping performance.
The thickness of the stainless steel base layer is 6-8 mm. Has stable compression strength and tensile strength. Too thin is easy to break, too thick is too high in cost.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the steel lining polytetrafluoroethylene vulcanized pipe has good corrosion resistance to halogen, halohydrocarbon, strong oxidant, boiling acid, alkali and various organic solvents, and can bear the corrosion of the byproducts such as halogen, halohydrocarbon and the like in the vulcanization process of rubber, so that the normal operation of the vulcanization process is ensured.
2. The polytetrafluoroethylene is a high-temperature resistant material, so the working temperature of the steel lining polytetrafluoroethylene is up to 250 ℃. In the rubber vulcanization process, the working temperature in the high-temperature high-pressure steam type vulcanization pipe is 180-200 ℃, and the steel lining polytetrafluoroethylene vulcanization pipe can completely bear the high temperature in the vulcanization process.
3. The friction coefficient of the polytetrafluoroethylene is extremely small, between 0.01 and 0.10, is 1/5 of polyethylene, and is the lowest friction coefficient of the existing plastics and all engineering materials. In the rubber vulcanization process, the rubber cable has dragging friction in the vulcanization pipe, because of the low friction characteristic, the surface abrasion of the rubber cable is greatly reduced, and the polytetrafluoroethylene has stronger wear resistance and ensures effective corrosion resistance, so that the cable with higher surface quality can be obtained.
4. Surface non-adhesiveness; the polytetrafluoroethylene has the minimum surface tension in solid materials and does not adhere to any substance, in the past, workers need to consume a large amount of manpower and material resources to clean a common vulcanization pipeline, however, after the steel lining polytetrafluoroethylene vulcanization pipe is applied, the part of cleaning can be omitted, and the production efficiency is greatly improved.
5. By applying the conventional stainless steel vulcanized pipe, although the initial installation cost is low, because the pipe is often corroded, corrosion points are required to be welded and repaired or the vulcanized pipe is required to be replaced every few days, and the later maintenance and repair cost is extremely high; the steel lining polytetrafluoroethylene vulcanized pipe has good corrosion resistance, basically does not need maintenance cost in the later period, and only needs the investment cost in the earlier period, so that the production cost can be greatly saved by selecting the steel lining polytetrafluoroethylene vulcanized pipe in comprehensive consideration.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the cross-sectional structure a-a of the present invention.
Reference numerals: 1. an aluminum foil layer; 2. a silicone rubber fiberglass sleeve layer; 3. a polytetrafluoroethylene inner liner; 4. a stainless steel base layer; 5. a flange bolt hole; 31. and a flanging structure.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined with the following description to clearly and completely describe the technical solution in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example 1:
as shown in fig. 1-2, the fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe of the present embodiment includes, from inside to outside, a polytetrafluoroethylene lining layer 3, a stainless steel base layer 4, a silicone rubber glass fiber sleeve layer 2, and an aluminum foil layer 1; the ports at two ends of the stainless steel base layer 4 are provided with annular convex parts, and the annular convex parts are provided with flange bolt holes 5; two ends of the polytetrafluoroethylene lining layer 3 are provided with flange structures 31, and the flange structures 31 cover the end faces of the outer sides of the annular convex parts.
The silicone rubber glass fiber sleeve layer 2 is wrapped outside the stainless steel base layer 4 in a multi-layer manner, and the wrapping overlapping rate is 15%.
The aluminum foil layer 1 is wrapped on the outer side of the silicon rubber glass fiber sleeve layer 2, and the wrapping overlapping rate is 20%.
The thickness of the aluminium foil layer 1 is 1 mm.
The thickness of the polytetrafluoroethylene inner liner layer 3 is 3 mm.
The single-layer thickness of the silicone rubber glass fiber sleeve layer 2 is 10 mm.
The stainless steel substrate 4 has a thickness of 6 mm.
Example 2:
as shown in fig. 1-2, the fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe of the present embodiment includes, from inside to outside, a polytetrafluoroethylene lining layer 3, a stainless steel base layer 4, a silicone rubber glass fiber sleeve layer 2, and an aluminum foil layer 1; the ports at two ends of the stainless steel base layer 4 are provided with annular convex parts, and the annular convex parts are provided with flange bolt holes 5; two ends of the polytetrafluoroethylene lining layer 3 are provided with flange structures 31, and the flange structures 31 cover the end faces of the outer sides of the annular convex parts.
The silicone rubber glass fiber sleeve layer 2 is wrapped outside the stainless steel base layer 4 in a multi-layer manner, and the wrapping overlapping rate is 25%.
The aluminum foil layer 1 is wrapped on the outer side of the silicon rubber glass fiber sleeve layer 2, and the wrapping overlapping rate is 25%.
The thickness of the aluminium foil layer 1 is 2 mm.
The thickness of the polytetrafluoroethylene inner liner layer 3 is 5 mm.
The single layer thickness of the silicone rubber fiberglass sleeve layer 2 is 20 mm.
The stainless steel substrate 4 has a thickness of 8 mm.
Example 3:
as shown in fig. 1-2, the fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe of the present embodiment includes, from inside to outside, a polytetrafluoroethylene lining layer 3, a stainless steel base layer 4, a silicone rubber glass fiber sleeve layer 2, and an aluminum foil layer 1; the ports at two ends of the stainless steel base layer 4 are provided with annular convex parts, and the annular convex parts are provided with flange bolt holes 5; two ends of the polytetrafluoroethylene lining layer 3 are provided with flange structures 31, and the flange structures 31 cover the end faces of the outer sides of the annular convex parts.
The silicone rubber glass fiber sleeve layer 2 is wrapped outside the stainless steel base layer 4 in a multi-layer manner, and the wrapping overlapping rate is 20%.
The aluminum foil layer 1 is wrapped on the outer side of the silicon rubber glass fiber sleeve layer 2, and the wrapping overlapping rate is 22%.
The thickness of the aluminium foil layer 1 is 1.5 mm.
The thickness of the polytetrafluoroethylene inner liner layer 3 is 4 mm.
The single layer thickness of the silicone rubber fiberglass sleeve layer 2 is 15 mm.
The stainless steel substrate 4 has a thickness of 7 mm.
The utility model also discloses a preparation method of steel lining polytetrafluoroethylene inner liner, including following step:
the first step is as follows: turning a polytetrafluoroethylene bar produced by die pressing into a film by adopting a loose lining tube process;
the second step is that: winding the PTFE film on a pre-designed die by a manual or mechanical method, winding several layers of alkali-free glass ribbons after the winding thickness reaches a design value, and fastening the outermost layer by iron wires;
the third step: sending the mixture to a sintering furnace for molding, cooling the mixture by water after sintering, and demoulding the mixture by a manual or mechanical mode;
the fourth step: and sleeving the formed fluoroplastic lining layer into a stainless steel pipe, and flanging to complete the sleeve.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (7)
1. The fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe is characterized by comprising a polytetrafluoroethylene inner liner layer, a stainless steel base layer, a silicone rubber glass fiber sleeve layer and an aluminum foil layer from inside to outside; annular convex parts are arranged at two end ports of the stainless steel base layer, and flange bolt holes are formed in the annular convex parts; and two ends of the polytetrafluoroethylene lining layer are provided with flange structures, and the flange structures cover the end faces of the outer side of the annular convex part.
2. A fluoroplastic corrosion and wear resistant vulcanized pipe as set forth in claim 1 wherein: the silicone rubber glass fiber sleeve layer is wrapped on the outer side of the stainless steel base layer in a multi-layer wrapping mode, and the wrapping overlapping rate is 15-25%.
3. A fluoroplastic corrosion and wear resistant vulcanized pipe as set forth in claim 2 wherein: the aluminum foil layer is wrapped on the outer side of the silicone rubber glass fiber sleeve layer, and the wrapping overlapping rate is 20-25%.
4. A fluoroplastic corrosion and wear resistant vulcanized pipe as set forth in claim 3 wherein: the thickness of the aluminum foil layer is 1-2 mm.
5. A fluoroplastic corrosion and wear resistant vulcanized pipe as set forth in claim 1 wherein: the thickness of the polytetrafluoroethylene lining layer is 3-5 mm.
6. A fluoroplastic corrosion and wear resistant vulcanized pipe as set forth in claim 1 wherein: the single-layer thickness of the silicone rubber glass fiber sleeve layer is 10-20 mm.
7. A fluoroplastic corrosion and wear resistant vulcanized pipe as set forth in claim 1 wherein: the thickness of the stainless steel base layer is 6-8 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922278358.1U CN211604812U (en) | 2019-12-18 | 2019-12-18 | Fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922278358.1U CN211604812U (en) | 2019-12-18 | 2019-12-18 | Fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe |
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| Publication Number | Publication Date |
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| CN211604812U true CN211604812U (en) | 2020-09-29 |
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| CN201922278358.1U Active CN211604812U (en) | 2019-12-18 | 2019-12-18 | Fluoroplastic corrosion-resistant and wear-resistant vulcanized pipe |
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| CN (1) | CN211604812U (en) |
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