113results about How to "Improve fire and heat insulation performance" patented technology

The invention relates to a middle-voltage power transmission fire-resistant cable, which is characterized in that a fire-resistant layer out of a middle-voltage cable core includes an inner fire-resistant inorganic fiber thermal insulating layer, and an outer composite fire-resistant thermal insulating layer, which is a soft thermosetting elastic body in normal use and is a fire-resistant thermalinsulating layer when exposed to fire, wherein the thermosetting elastic body consists of 30-50wt percent silicon-based elastic material, 40-60wt percent inorganic filling material, 5-15wt percent middle- and low-temperature frit, and 4-10wt percent vulcanizing agent and is prepared by mixing, extruding, shaping and vulcanizing. The composite fire-resistant thermal insulating layer is a soft protective material for ensuring the good bending property of the fire-resistant structure under normal condition, can change to tubular fire-resistant thermal insulating structure when exposed to fire orhigh temperature and can not be damaged for a certain time in fire environment so as to effectively prevent the flame or high temperature from damaging the inner insulating layer. When the outer flame temperature is 850DEG C, the surface temperature of the inner insulating layer is less than 180DEG C. The fire-resistant thermal insulating structure can be applied in common cable protection mannerand has very high production efficiency.

The invention discloses a preparation method of an open-fire resistance thermal insulation textile. The preparation method comprises the steps of: firstly modifying fiber surfaces, so that the fiber surfaces generate a plurality of-COOH groups so as to adsorb Mg(OH)2 seed crystals, then adopting a secondary growth method to enable the Mg(OH)2 seed crystals to grow for the second time on the fiber surfaces, preparing Mg(OH)2 crystal films which are completely coated on the fiber surfaces, then mixing a high-temperature resistance polymer solution and different dosages of organic pillar vermiculites by taking a high-temperature-resistant polymer phenolphthalein-based polyether sulphone as a continuous phase, so as to realize the uniform mixing of high-temperature-resistant polymers with different proportions and the organic pillar vermiculites by a physical means of supersonic wave cell smashing, coating fiber fabrics by the prepared high-temperature-resistant polymers and a vermiculite mixed liquid, wherein magnesium hydrate crystal films grow on the surfaces of the fiber fabrics, and forming vermiculite film protective layers with different thicknesses on the fiber surfaces through appropriate thermal treatment, so as to obtain the textile with strong open-fire resistance and thermal insulation property. The open-fire resistance thermal insulation textile prepared by using the preparation method has the advantages of improving the open-fire resistance and the thermal insulation property.

The invention discloses a high-altitude escape fabric tube slide. The high-altitude escape fabric tube slide comprises an escape fabric tube and an escape fabric tube accommodating box, wherein the escape fabric tube is sequentially provided with a slide tube, an elastic tube, a heat insulating tube and a fire-proof tube from the inner side to the outer side, the perimeter of the elastic tube is 700-750mm, and the perimeter of the slide tube is 1200-1500mm; and when the slide tube expands under the action of inner expansion force, the elastic tube produces inward clamping force, and the elastic tube can reach the maximum perimeter with the slide tube under the action of the expansion force. The high-altitude escape fabric tube slide has the advantages of simple structure, great fire-proofand heat insulating effects, low manufacture cost, safe escape personnel transferring and high transferring efficiency.