Noise reduction and heat insulation central air conditioner duct system

Abstract

The invention discloses a noise reduction and heat insulation central air conditioner duct system and belongs to the field of construction and installation. The noise reduction and heat insulation central air conditioner duct system comprises an air duct, a heat insulation layer covering the external surface of the air duct and a hoisting mechanism, wherein the air duct is formed by splicing a plurality of air duct units from head to tail and is hoisted and fixed on a roof by the hoisting mechanism; the heat insulation layer is composed of four layers; the four layers successively comprise a foam-in-place polyurethane layer, a steel wire ball framework layer, a foam-in-place polyurethane layer and a mineral wool felt layer from inside to outside; the steel wire ball framework layer is formed by a plurality of steel wire balls which are arranged at intervals; the steel wire balls are partially embedded into the foam-in-place polyurethane layers on two sides respectively. The central air conditioner duct system has better noise reduction, heat insulation and fire prevention performance.

Description

technical field [0001] The invention belongs to the field of building installation. Background technique [0002] The air conditioner air duct is used by the air conditioner to use the cold and heat generated by the host to centralize the return air (or the mixture of return air and fresh air) from the room for air treatment, such as cooling, heating, humidification, dehumidification, purification, etc. and then into the indoor channel. [0003] The air ducts commonly used in central air conditioners include the following types: galvanized steel sheet air ducts, inorganic glass fiber reinforced plastic air ducts, composite glass fiber board air ducts, and fiber fabric air ducts. [0004] Galvanized thin steel air duct: one of the earliest used air ducts, made of galvanized thin steel, suitable for the transportation of general gas with low moisture content, easy to rust, no heat preservation and noise reduction functions, long production and installation period specialty. ...

AI Technical Summary

Problems solved by technology

[0026] 1. Since the structure uses wood for cold insulation, it can no longer meet the fire protection requirements in today's increasingly stringent fire protection requirements

[0027] 2. Due to the cold bridge wood, the space occupied by the air duct increases correspondingly, which increases the elevation and cost of the entire building

[0028] 3. Because the air duct is installed at a certain interval, a hanger or bracket is required. The previous bracket installation method has cross-arms. Since the number and specifications of the cross-arms are difficult to accurately determine, it is generally processed on-site

Material cutting, drilling, rust removal, anti-corrosion, etc., not only take a long time to process, but also require high labor costs, occupy a lot of temporary space, and have many hidden dangers to safety and quality

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