Unlock instant, AI-driven research and patent intelligence for your innovation.

Aluminum-magnesium fire-resistant and heat-insulating ventilating pipeline

A ventilation duct and fire-resistant technology, applied in the direction of pipeline protection, pipeline damage/abrasion prevention, pipes, etc., can solve the problems of inability to meet heat insulation requirements, large number of fixed plates, high thermal conductivity, etc., and achieve easy construction and small hole distribution Uniform, low thermal conductivity effect

Active Publication Date: 2020-01-10
CHENGDU SOLVER TECH
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patented air duct uses T-shaped or L-shaped fixing plates to establish a connecting bridge between the fireproof casing and the metal pipe. There are too many fixing plates, which makes installation very troublesome; at the same time, the fireproof casing is required to have higher strength. Without heat insulating material, the thermal conductivity is still high, unable to meet the heat insulation requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aluminum-magnesium fire-resistant and heat-insulating ventilating pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] An aluminum-magnesium refractory and heat-insulated ventilation duct includes a rectangular tube and an aluminum-magnesium refractory and heat-insulating plate, the rectangular tube is a metal tube, and the four sides of the rectangular tube are covered with an aluminum-magnesium refractory and heat-insulating plate. A layer of fire-resistant adhesive is arranged between the rectangular tube and the aluminum-magnesium fire-resistant board, and between adjacent aluminum-magnesium fire-resistant boards.

Embodiment 2

[0040] An aluminum-magnesium refractory and heat-insulated ventilation duct includes a rectangular tube and an aluminum-magnesium refractory and heat-insulating plate, the rectangular tube is a metal tube, and the four sides of the rectangular tube are covered with an aluminum-magnesium refractory and heat-insulating plate. A layer of fire-resistant adhesive is arranged between the rectangular tube and the aluminum-magnesium fire-resistant board, and between adjacent aluminum-magnesium fire-resistant boards.

[0041] The density of the aluminum-magnesium refractory plate is 180-220Kg / m 3 , Thermal conductivity ≤0.045W / (m.k).

[0042] The fire resistance time of the ventilation duct is ≥1.5 hours.

Embodiment 3

[0044] An aluminum-magnesium refractory and heat-insulated ventilation duct includes a rectangular tube and an aluminum-magnesium refractory and heat-insulating plate, the rectangular tube is a metal tube, and the four sides of the rectangular tube are covered with an aluminum-magnesium refractory and heat-insulating plate. A layer of fire-resistant adhesive is arranged between the rectangular tube and the aluminum-magnesium fire-resistant board, and between adjacent aluminum-magnesium fire-resistant boards.

[0045] The density of the aluminum-magnesium refractory plate is 180-220Kg / m 3 , thickness 20-50mm, thermal conductivity ≤0.045W / (m.k).

[0046]The outer surface of the aluminum-magnesium fire-resistant board is also coated with a layer of fire-resistant paint to further improve the fire-proof performance of the ventilation pipe.

[0047] The refractory adhesive of the present invention refers to phosphate, gypsum, aluminate or silicate adhesives.

[0048] The fireproo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
lengthaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides an aluminum-magnesium fire-resistant and heat-insulating ventilating pipeline which comprises a rectangular pipe and aluminum-magnesium fire-resistant and heat-insulating plates. The rectangular pipe is a metal pipe, the four surfaces of the rectangular pipe are coated with the aluminum-magnesium fire-resistant and heat-insulating plates, the rectangular pipe is bonded withthe aluminum-magnesium fire-resistant and heat-insulating plates through a fire-resistant adhesive, and the adjacent aluminum-magnesium fire-resistant and heat-insulating plates are bonded through thefire-resistant adhesive. The aluminum-magnesium fire-resistant and heat-insulating ventilating pipeline has the effects of fire resistance and heat insulation, light weight and good construction performance.

Description

technical field [0001] The invention belongs to the field of building refractory materials, and in particular relates to an aluminum-magnesium refractory and heat-insulating ventilation duct. Background technique [0002] According to the national standard "GB51251-2017 Technical Standards for Smoke Control and Smoke Exhaust Systems in Buildings", in order to prevent the flame from burning out the smoke control and exhaust ducts and spreading to other fire compartments, it is required that the fire resistance limit of the smoke control and exhaust ducts should not be less than 1.0 hours. The current air duct standard "GB / T 17428-2009 Fire Resistance Test Methods for Ventilation Ducts" emphasizes that fire resistance and heat insulation must be combined. Only fire resistance is not enough, and heat insulation must also be used. [0003] Existing building smoke prevention and exhaust ducts are generally made of white iron or galvanized iron sheet metal. The outer surface of th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/14F16L57/04C04B35/80C04B35/01C04B35/622C04B35/634C04B35/632C04B38/00
CPCC04B35/01C04B35/622C04B35/632C04B35/63444C04B38/0025C04B2235/3208C04B2235/3217C04B2235/3222C04B2235/522C04B2235/5224C04B2235/5232C04B2235/5236C04B2235/6562C04B2235/6567C04B2235/77C04B2235/9607F16L9/003F16L9/14F16L57/04C04B35/803C04B38/0067
Inventor 陈德东
Owner CHENGDU SOLVER TECH