Ultra-high temperature resistant fireproof carbon fiber composite steel wire rope

Abstract

The application discloses a superhigh-temperature-resistant fireproof carbon fiber composite steel wire rope, which comprises a steel wire rope, an aerogel heat insulation layer and a high-silica cloth fireproof layer are sequentially adhered outside the steel wire rope, and an aerogel heat insulation fireproof coating is sprayed outside the high-silica cloth fireproof layer; the aerogel heat insulation layer is twisted from aerogel felt; and the high-silica cloth fireproof layer is twisted from high-silica cloth. The superhigh-temperature-resistant fireproof carbon fiber composite steel wire rope meets the use requirement of superhigh-temperature resistance of 1500 DEG C, has good fire resistance and high-temperature resistance, is flexible and has certain extrusion resistance, and solves the problem that the steel wire rope in the prior art cannot be used for rescue operation in an open fire for a long time.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of steel wire ropes and relates to a super-high-temperature-resistant fireproof carbon fiber composite steel wire rope. BACKGROUND

[0002] With the development of industrialization and urbanization, fire rescue is increasingly prominent in the field of fire fighting, including construction rescue in forest, grassland, mine, gas pipeline and oil well blowout fires. Among them, oil and gas well blowout with fire occurs from time to time, and it is necessary to hoist the wellhead and related devices. The temperature of the open fire on site is as high as about 1500 DEG C. During the hoisting operation, water cooling is needed, and the hoisting anti-blowout device weighs about 40 tons. The normal use temperature of the existing hoisting steel wire rope is about 300 DEG C. After high temperature and water cooling of the wellhead, the steel wire structure changes easily in a short time, resulting in a sharp decrease in the performance of the steel wire rope, even brittle failure and fracture. At present, the hoisting steel wire rope can only be used for about 10 minutes, and the operation has a great safety risk, which is a big problem in oil and gas well blowout rescue operation.

[0003] During the operation of oil and gas well blowout with fire, it is very important to effectively prolong the service life of the steel wire rope at high temperature and ensure safe operation. Therefore, it is urgent to develop a super-high-temperature-resistant fireproof steel wire rope (satisfying super-high-temperature resistance of 1500 DEG C). SUMMARY

[0004] The application aims to provide a super-high-temperature-resistant fireproof carbon fiber composite steel wire rope, which satisfies super-high-temperature resistance of 1500 DEG C and solves the problem that the existing steel wire rope cannot be used for long-time rescue operation in open fire.

[0005] The technical scheme adopted by the application is a super-high-temperature-resistant fireproof carbon fiber composite steel wire rope, which comprises a steel wire rope, an aerogel thermal insulation layer and a high-silica cloth fireproof layer are sequentially adhered outside the steel wire rope, an aerogel thermal insulation fire-resistant coating layer is sprayed outside the high-silica cloth fireproof layer, the aerogel thermal insulation layer is twisted from aerogel felt, and the high-silica cloth fireproof layer is twisted from high-silica cloth.

[0006] The application has the characteristics that

[0007] The steel wire rope is a single-layer strand steel wire rope or a multi-layer strand steel wire rope.

[0008] The steel wire rope is a carbon fiber composite steel wire rope, which comprises a steel core, a plurality of outer strands and a carbon fiber bundle, the steel core is twisted from one center strand and six outer layer strands, and the carbon fiber bundle is twisted and bundled from a plurality of 6K-24K carbon fibers.

[0009] The thickness of the aerogel thermal insulation layer is 0.2-0.5 mm.

[0010] The thickness of the high-silica cloth fireproof layer is 0.2-0.5 mm.

[0011] The aerogel insulation layer is bonded to the steel wire rope with organic high-temperature adhesive, and the high-silica fireproof layer is also bonded to the aerogel insulation layer with organic high-temperature adhesive.

[0012] Aerogel heat-insulating and fire-resistant coatings are made using aerogel spraying materials.

[0013] The beneficial effects of this invention are:

[0014] This invention discloses an ultra-high temperature fireproof carbon fiber composite steel wire rope. The steel wire rope is externally coated from the inside out with an aerogel insulation layer, a high-silica cloth fireproof layer, and an aerogel heat-insulating and fire-resistant coating. The steel wire rope can be made of carbon fiber composite steel wire rope, which has high strength and good heat resistance. The aerogel insulation layer provides heat insulation, reducing the heat conduction rate or blocking heat conduction, and can withstand temperatures above 1300℃. The high-silica cloth fireproof layer provides fireproofing, flame retardancy, and heat insulation, and can withstand temperatures above 1500℃. The aerogel heat-insulating and fire-resistant coating provides fireproofing and heat insulation, further reducing heat conduction, and can withstand temperatures above 1500℃. This invention's ultra-high temperature fireproof carbon fiber composite steel wire rope meets the requirement of withstanding ultra-high temperatures of 1500℃, has good fire and high temperature resistance, and also has flexibility and certain compression resistance, solving the shortcomings of existing steel wire ropes that cannot be used for extended periods in open flame rescue operations. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of a carbon fiber composite steel wire rope resistant to ultra-high temperature and fireproof according to the present invention.

[0016] Figure 2 This is a cross-sectional view of the steel wire rope in the ultra-high temperature fireproof carbon fiber composite steel wire rope of the present invention.

[0017] In the diagram, 1. steel wire rope, 2. aerogel insulation layer, 3. high silica cloth fireproof layer, 4. aerogel heat insulation and fire resistant coating, 5. steel core, 6. outer strand, 7. carbon fiber bundle. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] Example

[0020] This embodiment provides an ultra-high temperature fireproof carbon fiber composite steel wire rope, including a steel wire rope 1, an aerogel heat insulation layer 2 and a high silica cloth fireproof layer 3 sequentially bonded to the outside of the steel wire rope 1, and an aerogel heat insulation and fireproof coating 4 sprayed on the outside of the high silica cloth fireproof layer 3.

[0021] The steel wire rope 1 is a carbon fiber composite steel wire rope, which comprises a steel core 5, a plurality of outer strands 6 and a carbon fiber bundle 7. The steel core 5 is twisted by one center strand and six outer layer strands, and the steel core 5 has a twist pitch multiple of 7.5. The outer strands 6 are twisted and have a twist pitch multiple of 7.2. The stainless steel wires in the outer strands 6 and the steel core 5 are produced by using special stainless steel wire rods, so that the performance of the steel wires is not lost under the conditions of 800℃ high temperature and water cooling. The carbon fiber bundle 7 is twisted and bundled by a plurality of 24K carbon fibers. The carbon fiber material has a high temperature resistance of about 700-800℃, and plays a role of load bearing and heat resistance for the carbon fiber composite steel wire rope.

[0022] The aerogel thermal insulation layer 2 is twisted by aerogel felt, is coated on the steel wire rope 1 and is bonded by organic high temperature glue. The thickness of the aerogel thermal insulation layer 2 is 0.2-0.5mm.

[0023] The high silica cloth fireproof layer 3 is twisted by high silica cloth, is coated on the aerogel thermal insulation layer 2 and is bonded by organic high temperature glue. The thickness of the high silica cloth fireproof layer 3 is 0.2-0.5mm.

[0024] The aerogel thermal insulation fireproof coating 4 is coated on the high silica cloth fireproof layer 3 by spraying the aerogel spraying material, and the spraying layer is uniform and dense.

Claims

1. A super-high temperature resistant fireproof carbon fiber composite steel wire rope, characterized in that, The application relates to a steel wire rope (1), which is a single-layer strand steel wire rope or a multi-layer strand steel wire rope, and the multi-layer strand steel wire rope is a carbon fiber composite steel wire rope, the carbon fiber composite steel wire rope comprises a steel core (5), a plurality of outer strands (6) and carbon fiber bundles (7), the steel core is twisted by one center strand and six outer layer strands, the carbon fiber bundles (7) are twisted and bundled by a plurality of 6K-24K carbon fibers, the steel wire rope (1) is sequentially adhered with an aerogel heat insulation layer (2) and a high-silica cloth fireproof layer (3) outside, the high-silica cloth fireproof layer (3) is sprayed with an aerogel heat insulation fire-resistant coating (4) outside, the aerogel heat insulation layer (2) is twisted by aerogel felt, the high-silica cloth fireproof layer (3) is twisted by high-silica cloth, the aerogel heat insulation layer (2) is adhered to the steel wire rope (1) by organic high-temperature glue, and the high-silica cloth fireproof layer (3) is also adhered to the aerogel heat insulation layer (2) by organic high-temperature glue.

2. The ultra-high temperature resistant fireproof carbon fiber composite wire rope according to claim 1, characterized in that, The thickness of the aerogel heat insulation layer (2) is 0.2-0.5 mm.

3. The ultra-high temperature resistant fireproof carbon fiber composite wire rope according to claim 1, characterized in that, The thickness of the high-silica cloth fireproof layer (3) is 0.2-0.5 mm.

4. The ultra-high temperature resistant fireproof carbon fiber composite wire rope according to claim 1, characterized in that The aerogel heat insulation fire-resistant coating (4) adopts an aerogel spraying material.

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