CN201145380Y

CN201145380Y - Novel composite ventilating pipeline

Info

Publication number: CN201145380Y
Application number: CNU2007201877497U
Authority: CN
Inventors: 王国威
Original assignee: HENAN SIXTH CONSTRUCTION GROUP CO Ltd
Current assignee: HENAN SIXTH CONSTRUCTION GROUP CO Ltd
Priority date: 2007-12-21
Filing date: 2007-12-21
Publication date: 2008-11-05
Anticipated expiration: 2017-12-21

Abstract

The utility model discloses a novel compound ventilation duct, which consists of an outer fire-protection layer (1), a middle thermal-insulation layer (2), an inner fire-protection layer (3), wherein, the inner and outer fire protection layers can be made of anticorrosion metal plates, GFRP plates or PVC plastic plates; the middle thermal insulation layer can be made of rock wool plates, expandable polystyrene(EPS) foaming plates or rigid extruded PS foaming plates for thermal insulation; polyurethane foaming agents are bonded among the inner and outer fire protection layers, and the middle thermal insulation layer, compositing by a hot-pressing method, and two ends are connected after being bending. The duct has the advantages of good flame retardancy, small thermal conductivity, good thermal insulation performance, long service life and good energy-saving effect because of adopting materials with properties of antifreeze, thermal insulation, corrosion resistance and aging resistance.

Description

The NEW TYPE OF COMPOSITE ventilation shaft

Technical field

The utility model relates to a kind of ventilation shaft, particularly a kind of NEW TYPE OF COMPOSITE ventilation shaft that is applicable to the architectural engineering ventilation and air conditioning system.

Background technology

At present, in the building field, ventilation shaft commonly used in the central air-conditioning has iron sheet airduct, galvanized steel plain sheet airduct, glass fibre reinforced plastic blast pipe etc., and there is more shortcoming in this type of airduct, as the cost height, difficulty of construction is big, and profile is not attractive in appearance yet, easily suction, distortion, and easy breed bacteria and morbid substance, it is unhealthful to produce dust, therefore has great potential safety hazard.

Summary of the invention

For overcoming the deficiency that prior art exists, the purpose of this utility model provides a kind of NEW TYPE OF COMPOSITE ventilation shaft, have environmental protection, energy-conservation, do not fire, the superiority of sound insulation, attractive in appearance, cleaning, be the ideal substitute of existing tradition ventilation pipeline.

For achieving the above object, the utility model adopts following technical scheme:

Described NEW TYPE OF COMPOSITE ventilation shaft, it is made up of outer fireprotection layer, middle heat-insulation layer and interior fireprotection layer, inside and outside fireprotection layer can be non-corrosive metal (NCM) plate, glass epoxy or polyvinyl chloride plastic flitch, and middle heat-insulation layer can be rock cotton board, an expandable polystyrene foaming plate or adiabatic with the extruded polystyrene plate that foams; There is polyurethane foams bonding between inside and outside fireprotection layer and the middle heat-insulation layer, and compound by hot-press method, through bending two ends are connected again, there is polyurethane foams the junction, and fixes by rivet; Its cross section is rectangular.

Owing to adopt aforesaid technical scheme, the utlity model has following superiority:

This NEW TYPE OF COMPOSITE ventilation shaft adopts anti-freezing and heat-insulating, corrosion-resistant, aging-resistant material, can make the pipeline good flame resistance, thermal conductivity factor is little, excellent thermal insulation performance, and thermal adaptability is strong, be applicable to-60～150 ℃ various environment, can dewfall, can not produce condensed water; Adopt floride-free foaming, nonpoisonous and tasteless, environment protection health; Do not absorb water, protection against the tide, stable chemical performance can not take place to decompose and go mouldy; The load that can reduce building in light weight, simple for production, long service life, energy-saving effect is obvious, is applicable to the ventilation shaft of various air-conditioning systems.

Description of drawings

Fig. 1 is the structural representation of NEW TYPE OF COMPOSITE ventilation shaft;

Among the figure: the outer fireprotection layer of 1-; Heat-insulation layer in the middle of the 2-; Fireprotection layer in the 3-.

The specific embodiment

As shown in fig. 1: this NEW TYPE OF COMPOSITE ventilation shaft, it is made up of outer fireprotection layer 1, middle heat-insulation layer 2 and interior fireprotection layer 3, inside and outside fireprotection layer can be non-corrosive metal (NCM) plate, glass epoxy or polyvinyl chloride plastic flitch, and middle heat-insulation layer can be rock cotton board, an expandable polystyrene foaming plate or adiabatic with the extruded polystyrene plate that foams; There is polyurethane foams bonding between inside and outside fireprotection layer and the middle heat-insulation layer, and compound by hot-press method, through bending two ends are connected again, there is polyurethane foams the junction, and fixes by rivet; Its cross section is rectangular.

During making, metallic plate one side is evenly smeared polyurethane foams, cover one deck rock cotton board thereon, the metallic plate of again another piece being smeared polyurethane foams is positioned on the rock cotton board, and pressurization makes it form composite plate; Cut into needed size, more flat composite plate is bent into the pipeline of rectangle, polyurethane foams is also smeared at the two ends of composite plate, and two ends are bonded together, and uses rivet to reinforce at last, can form composite ventilated pipeline.

When making, also can use glass epoxy or polyvinyl chloride plastic flitch to replace metallic plate, replace rock cotton board with expandable polystyrene foaming plate or thermal insulation with extruded polystyrene foaming plate, utilize above-mentioned operating procedure to make composite ventilated pipeline.

Claims

1, a kind of NEW TYPE OF COMPOSITE ventilation shaft, it is characterized in that: it is made up of outer fireprotection layer (1), middle heat-insulation layer (2) and interior fireprotection layer (3), inside and outside fireprotection layer can be non-corrosive metal (NCM) plate, glass epoxy or polyvinyl chloride plastic flitch, and middle heat-insulation layer can be rock cotton board, an expandable polystyrene foaming plate or adiabatic with the extruded polystyrene plate that foams; There is polyurethane foams bonding between inside and outside fireprotection layer and the middle heat-insulation layer, and compound by hot-press method, through bending two ends are connected again, there is polyurethane foams the junction, and fixes by rivet; Its cross section is rectangular.