High-temperature-resistant heat-insulation fireproof sleeve and preparation method thereof

A fireproof casing, high temperature resistance technology, applied in the direction of thermal insulation protection of pipes, heat exchange equipment, hoses, etc., can solve the problem of low temperature resistance effect of fireproof casing, achieve good heat insulation effect, low accident loss, The effect of high temperature resistance

Inactive Publication Date: 2020-06-26
郑州海太克高分子技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The invention relates to a method for preparing a high-temperature-resistant fireproof casing. The invention mainly solves the problem that the existing fireproof casing has a low temperature-resistant effect, and provides a fire-resistant casing with good flame retardancy and high temperature-resistant effect. its preparation method

Method used

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  • High-temperature-resistant heat-insulation fireproof sleeve and preparation method thereof

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preparation example Construction

[0031] A method for preparing a high-temperature-resistant heat-insulating fireproof casing, comprising the following steps:

[0032] Step 1: using a continuous molding process to prepare a heat-resistant resin hose as the skeleton layer 1;

[0033] Step 2: Wrap the airgel on the outer layer of the skeleton layer as the heat insulation layer 2;

[0034] Step 3: use three-dimensional weaving equipment to weave heat-resistant fibers on the outer layer of the heat insulation layer 2 as the braided layer 3;

[0035] Step 4: Coating the outer layer of the braided layer 3 with a high-temperature-resistant flame-retardant material as the coating layer 4; if the coating layer 4 is rubber, further vulcanization is required.

Embodiment 1

[0037] The heat-resistant material used in the skeleton layer of the fireproof casing is PTFE resin, the airgel used in the heat-insulating layer is silica airgel, and the heat-resistant fiber used in the braided layer is continuous glass The fiber has a monofilament diameter of 13 μm, and the material used for the cladding layer is flame-retardant silicone rubber.

Embodiment 2

[0039] The heat-resistant material used in the skeleton layer of the fireproof casing is PFA resin, the airgel used in the heat insulation layer is alumina airgel, and the continuous fiber used in the braided layer is continuous carbon fiber, which The diameter of the monofilament is 7μm, and the material used for the cladding layer is flame-retardant fluororubber.

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Abstract

The invention relates to a high-temperature-resistant heat-insulation fireproof sleeve and a preparation method thereof. The high-temperature-resistant heat-insulation fireproof sleeve comprises a framework layer, the outer surface of the framework layer is wrapped with a heat-insulation layer, the outer surface of the heat-insulation layer is provided with a braided layer, and the outer surface of the braided layer is provided with a coating layer. The preparation method of the high-temperature-resistant heat-insulation fireproof sleeve comprises the following steps of (1) preparing a flexible hose from a heat-resistant material through a pipe extruder to serve as the framework layer; (2) coating aerogel on the outer surface of the framework layer to serve as the heat-insulation layer; (3) weaving heat-resistant fibers on the outer layer of the heat-insulation layer by using a three-dimensional weaving process to serve as the braided layer 3; and (4) laminating flame-retardant thermoplastic resin on the outer layer of the braided layer to serve as the coating layer 4. The high-temperature-resistant fireproof sleeve prepared through the method has the advantages of high temperatureresistance, good heat insulation property, good flexibility, non-flammability, aging resistance, electrical insulation, water resistance, oil resistance and the like, can be exposed in an environmentof -50 DEG C to 260 DEG C for a long time, can be continuously used for 15-20 minutes in an environment of 1030 DEG C, and can be used for 15-30 seconds at the high temperature of 1600 DEG C; and thehigh-temperature-resistant fireproof sleeve is used for conveying inflammable fluid hazardous chemicals such as an oil conveying pipeline and a chemical conveying pipeline, potential safety hazards can be greatly reduced, and accident losses are reduced to the minimum.

Description

technical field [0001] The invention belongs to the technical field of polymer material processing and preparation, and in particular relates to a high-temperature-resistant, heat-insulating and fire-proof casing and a preparation method thereof. Background technique [0002] The development of domestic plastic pipes has a history of more than 40 years. Due to its advantages of corrosion resistance, anti-aging, low density, small fluid resistance, convenient construction, and low cost, plastic pipes are widely used in construction, municipal, chemical, automotive, and pharmaceutical industries. , weapons, military, aerospace and other fields have a pivotal position; but because most of the plastic pipes are flammable, in the actual application process, there is a high fire risk, which will not only cause major economic losses The life and health of personnel are endangered. [0003] The fluid transmission pipelines in the traditional chemical and pharmaceutical industry are...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L11/02F16L57/04F16L59/02B29D23/00
CPCB29D23/001F16L11/02F16L57/04F16L59/029
Inventor 贾汝锋吕振亚杨国芳杜健飞和帆杨少柯杨松涛
Owner 郑州海太克高分子技术有限公司
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