CN210344726U - Water-cured elastic fireproof armor belt - Google Patents
Water-cured elastic fireproof armor belt Download PDFInfo
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- CN210344726U CN210344726U CN201920692929.3U CN201920692929U CN210344726U CN 210344726 U CN210344726 U CN 210344726U CN 201920692929 U CN201920692929 U CN 201920692929U CN 210344726 U CN210344726 U CN 210344726U
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Abstract
The utility model discloses a water-cured elastic fireproof armor belt, which comprises an internal fixed layer (1), a cured layer (2), a fireproof layer (3) and an external protective layer (4); the curing layer (2), the fireproof layer (3) and the external protection layer (4) are sequentially compounded and wound outside the internal fixing layer (1) from inside to outside; the inner fixing layer (1) is a hollow I-shaped fixing cylinder which is formed by pouring hard plastic into a mould; the curing layer (2) is water-curing polyurethane; the fireproof layer (3) is made of glass fiber coated by silicon rubber; the outer protective layer (4) is a polymer adhesive tape. The utility model has the advantages that: the coating is not required to be carried out for a plurality of times, the construction is simple, and the construction period is short; the pipeline does not need high-grade surface treatment for the moisture of the pipeline during maintenance, and the waterproof function is strong; the glass fiber coated by the silicon rubber is used as a fireproof layer and has an anticorrosion effect.
Description
Technical Field
The utility model relates to a pipeline maintenance field especially relates to a water cure elasticity fire prevention armor area that pipeline maintenance was robbed.
Background
Corrosion of natural gas pipelines is a type of damage caused by chemical and electrochemical action of the metal in the environment in which it is located. The corroded steel pipe becomes loose and falls off due to oxidation, so that holes are generated, and the steel pipe cannot bear pressure and convey natural gas any more. The steel pipes for transporting natural gas are divided into inner wall corrosion and outer wall corrosion according to different corrosion parts. The corrosion of the outer wall can occur on overhead or buried steel pipes, the reason for the corrosion of the outer wall of the buried steel pipe is complex, and the corrosion caused by electrochemical corrosion, stray current and bacteria action exists.
In engineering, the organic anticorrosive coating provides 99% of protection for the pipeline, the service life of the buried metal pipeline is obviously prolonged, and the intact anticorrosive coating can protect the metal matrix from being damaged by corrosion for 20 years. However, the corrosion protection layer on the pipeline inevitably generates some pinholes and damages as defects due to the complexity of the coating process and mechanical collision during the construction process, or generates adhesive failure due to the long-term action of various corrosion factors in the soil during the long-term service process, and further generates damages and peeling of the surface of the corrosion protection layer as defects. Meanwhile, the third construction damage is also one of the important reasons for the damage and failure of the anticorrosive coating.
In the technical field of pipeline engineering construction, an anticorrosion tape is used for winding and coating a pipeline as one of common anticorrosion technologies. The anticorrosion system that present polyethylene adhesive tape adopted is: primer, anticorrosive tape and protective tape; the anticorrosion system of the epoxy asphalt adhesive tape is as follows: primer (setting glue), anticorrosive tape and setting glue. The existing anticorrosion technology has the following defects:
(1) in the anticorrosion maintenance engineering, coating needs to be carried out for a plurality of times, the construction is complex, and the construction period is long;
(2) the coated anticorrosive paint has longer service life, and a part of layers are easy to crack and need to be repaired regularly;
(3) when the natural gas pipeline is maintained, the fire-proof function is not provided, and the safety factor is low.
SUMMERY OF THE UTILITY MODEL
For solving the technical problem in the prior art, the utility model provides a need not high-order surface treatment, can replace the water conservancy elasticity fireproof armor area that is used for pipeline dimension to robbed of water work.
The utility model discloses a realize through following technical scheme:
a water-cured elastic fireproof armor tape comprises an inner fixing layer 1, a cured layer 2, a fireproof layer 3 and an outer protective layer 4; the curing layer 2, the fireproof layer 3 and the external protection layer 4 are sequentially compounded and wound outside the internal fixing layer 1 from inside to outside;
the inner fixing layer 1 is a hollow I-shaped fixing cylinder with the inner part poured by hard plastic; the curing layer 2 is water-curing polyurethane; the fireproof layer 3 is made of glass fiber coated by silicon rubber; the outer protective layer 4 is a polymer adhesive tape.
Further, the water-curable polyurethane of the cured layer 2 is prepared from a high molecular weight low unsaturation polyether polyol, Toluene Diisocyanate (TDI), diisononyl phthalate (DINP), dibutyl tin dilaurate (T-12) as a raw material.
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 is 0.3 to 0.8 mm.
Further, among the silicon rubber-coated glass fibers of the fire-retardant layer 3, the silicon rubber is coated on one side of the glass fibers.
Further, in the silicon rubber-coated glass fiber of the fire-retardant layer 3, the silicon rubber is coated on both sides of the glass fiber.
Further, the thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.4-0.6 mm.
Further, the outer protective layer 4 is a polyethylene adhesive tape.
Further, the outer protective layer 4 is a polypropylene cold-wind adhesive tape.
Further, the thickness of the polyethylene adhesive tape of the outer protective layer 4 is 0.8 mm.
Further, the thickness of the polypropylene cold-winding adhesive tape of the outer protective layer 4 is 1.1 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the water-curing elastic fireproof armor belt of the utility model is an integrated anticorrosive adhesive belt, so that the waterproof fireproof armor belt only needs to be wound on the corrosion part of the pipeline without being coated for several times, the construction is simple, and the construction period is short;
2) because the water-cured polyurethane of the polyether polyol with high molecular weight and low unsaturation degree, the Toluene Diisocyanate (TDI), the diisononyl phthalate (DINP) and the dibutyl tin dilaurate (T-12) is arranged, high-grade surface treatment of the water content of the pipeline is not needed during pipeline maintenance, and the mechanical property of the waterproof coating is excellent, so that the waterproof function is strong.
3) The glass fiber coated with the silicon rubber has a fireproof function when the pipeline is rush-repaired, and has an anticorrosion function as the fireproof layer.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a block diagram of the armor tape of the present invention;
FIG. 3 is a structural diagram of the internal fixed cylinder of the present invention;
in the figure: 1. the inner fixing cylinder 2, the curing layer 3, the fireproof layer 4 and the outer protective layer.
Detailed Description
In order to facilitate understanding of the technical solutions of the present invention, the technical solutions of the present invention are further explained below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, a water-curable elastic fireproof armor tape comprises an inner fixing layer 1, a cured layer 2, a fireproof layer 3 and an outer protective layer 4;
as shown in fig. 2, the cured layer 2, the fireproof layer 3 and the external protection layer 4 are sequentially compounded from inside to outside and wound outside the internal fixing layer 1;
as shown in fig. 3, the internal fixing layer 1 is a hollow fixing cylinder shaped like an i shape with a hollow interior and made of hard plastic by pouring;
the curing layer 2 is water-curing polyurethane;
the fireproof layer 3 is made of glass fiber coated by silicon rubber;
the outer protective layer 4 is a polymer adhesive tape.
The water-cured polyurethane of the cured layer 2 is prepared from high molecular weight low-unsaturation polyether polyol, Toluene Diisocyanate (TDI), diisononyl phthalate (DINP) and dibutyl tin dilaurate (T-12) as raw materials.
The thickness of the water-curable polyurethane layer of the cured layer 2 was 0.3 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on one surface of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.4 mm.
The outer protective layer 4 is a polyethylene adhesive tape.
The thickness of the polyethylene adhesive tape of the external protective layer 4 is 0.8 mm.
Example 2
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.3 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on one surface of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.4 mm.
The outer protective layer 4 is a polypropylene cold-wrap adhesive tape.
The thickness of the polypropylene cold-winding adhesive tape of the outer protective layer 4 is 1.1 mm.
Example 3
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.5 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on one surface of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.4 mm.
The outer protective layer 4 is a polyethylene adhesive tape.
The thickness of the polyethylene adhesive tape of the external protective layer 4 is 0.8 mm.
Example 4
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.5 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on one surface of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.4 mm.
The outer protective layer 4 is a polypropylene adhesive tape.
The thickness of the polypropylene adhesive tape of the external protective layer 4 is 1.1 mm.
Example 5
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.8 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on one surface of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.4 mm.
The outer protective layer 4 is a polyethylene adhesive tape.
The thickness of the polyethylene adhesive tape of the external protective layer 4 is 0.8 mm.
Example 6
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.8 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on one surface of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.4 mm.
The outer protective layer 4 is a polypropylene cold-wrap adhesive tape.
The thickness of the polypropylene cold-winding adhesive tape of the outer protective layer 4 is 1.1 mm.
Example 7
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.3 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on two sides of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.6 mm.
The outer protective layer 4 is a polyethylene cold-wrap tape.
The thickness of the polyethylene cold-winding adhesive tape of the outer protective layer 4 was 0.8 mm.
Example 8
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.3 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on two sides of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.6 mm.
The outer protective layer 4 is a polypropylene cold-wrap adhesive tape.
The thickness of the polypropylene cold-winding adhesive tape of the outer protective layer 4 is 1.1 mm.
Example 9
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.5 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on two sides of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.6 mm.
The outer protective layer 4 is a polyethylene cold-wrap tape.
The thickness of the polyethylene cold-winding adhesive tape of the outer protective layer 4 was 0.8 mm.
Example 10
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.5 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on two sides of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.6 mm.
The outer protective layer 4 is a polypropylene cold-wrap adhesive tape.
The thickness of the polypropylene cold-winding adhesive tape of the outer protective layer 4 is 1.1 mm.
Example 11
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.8 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on two sides of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.6 mm.
The outer protective layer 4 is a polyethylene cold-wrap tape.
The thickness of the polyethylene cold-winding adhesive tape of the outer protective layer 4 was 0.8 mm.
Example 12
Further, the thickness of the water-curable polyurethane layer of the cured layer 2 was 0.8 mm.
In the glass fiber coated with the silicon rubber of the fire-proof layer 3, the silicon rubber is coated on two sides of the glass fiber.
The thickness of the glass fiber coated by the silicon rubber of the fire-proof layer 3 is 0.6 mm.
The outer protective layer 4 is a polypropylene cold-wrap adhesive tape.
The thickness of the polypropylene cold-winding adhesive tape of the outer protective layer 4 is 1.1 mm.
The beneficial effects of the above embodiment are: the coating is not required to be carried out for multiple times, the construction is simple, and the construction period is short; the pipeline does not need high-grade surface treatment for the moisture of the pipeline during maintenance, and the waterproof function is strong; the glass fiber coated by the silicon rubber is used as a fireproof layer and has an anticorrosion effect.
The above description is only a preferred example of the present invention, and is not intended to limit the present invention, and it is still possible for those skilled in the art to modify the technical solutions described in the foregoing embodiments or to replace some of the technical features of the present invention. Any modification, substitution and improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. A water-cured elastic fireproof armor tape, comprising: comprises an internal fixed layer (1), a cured layer (2), a fireproof layer (3) and an external protective layer (4); the curing layer (2), the fireproof layer (3) and the external protection layer (4) are sequentially compounded and wound outside the internal fixing layer (1) from inside to outside;
the internal fixing layer (1) is an I-shaped hollow hard plastic cylinder which is poured into a mold; the curing layer (2) is water-curing polyurethane; the fireproof layer (3) is made of glass fiber coated by silicon rubber; the outer protective layer (4) is a polymer adhesive tape.
2. A water-curable elastomeric fire retardant armor tape in accordance with claim 1, wherein: the water-cured polyurethane of the cured layer (2) is prepared from high-molecular-weight low-unsaturation polyether polyol, toluene diisocyanate, diisononyl phthalate and dibutyltin dilaurate serving as raw materials.
3. A water-curable elastomeric fire retardant armor tape in accordance with claim 2, wherein: the thickness of the cured layer (2) of the water-cured polyurethane layer is 0.3-0.8 mm.
4. A water-curable elastomeric fire retardant armor tape in accordance with claim 2, wherein: in the glass fiber coated with the silicon rubber of the fire-proof layer (3), the silicon rubber is coated on one surface of the glass fiber.
5. A water-curable elastomeric fire retardant armor tape in accordance with claim 2, wherein: in the glass fiber coated with the silicon rubber of the fire-proof layer (3), the silicon rubber is coated on two surfaces of the glass fiber.
6. A water-curable elastomeric fire retardant armor tape according to claim 4 or 5, wherein: the thickness of the glass fiber coated by the silicon rubber of the fireproof layer (3) is 0.4-0.6 mm.
7. A water-curable elastomeric fire retardant armor tape according to claim 4 or 5, wherein: the external protective layer (4) is a polyethylene adhesive tape.
8. A water-curable elastomeric fire retardant armor tape according to claim 4 or 5, wherein: the external protective layer (4) is a polypropylene cold-winding adhesive tape.
9. A water-curable elastomeric fire retardant armor tape in accordance with claim 7, wherein: the thickness of the polyethylene adhesive tape of the external protective layer (4) is 0.8 mm.
10. A water-curable elastomeric fire retardant armor tape according to claim 8 wherein: the thickness of the polypropylene cold-winding adhesive tape of the external protective layer (4) is 1.1 mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920692929.3U CN210344726U (en) | 2019-05-15 | 2019-05-15 | Water-cured elastic fireproof armor belt |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920692929.3U CN210344726U (en) | 2019-05-15 | 2019-05-15 | Water-cured elastic fireproof armor belt |
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| CN210344726U true CN210344726U (en) | 2020-04-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828777A (en) * | 2020-06-29 | 2020-10-27 | 新兴铸管股份有限公司 | Processing method of pipeline anticorrosive coating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111828777A (en) * | 2020-06-29 | 2020-10-27 | 新兴铸管股份有限公司 | Processing method of pipeline anticorrosive coating |
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