179results about How to "Meet fire protection requirements" patented technology

A bidirectional intensively ribbed mold clamp wall body comprises rib columns (1), rib beams (2) and mold clamp building blocks (3) and is characterized in that at least one mold clamp block (3) is embedded in a space defined by at least one rib column and at least two rib beams (2) or at least two rib columns (1) and at least one rib beam (2). The mold clamp building blocks (3) are formed by assembling outer face plates (4) and inner face plates (5) through connecting pieces (6). The bidirectional intensively ribbed mold clamp wall body can effectively enhance bearing performce, anti-shearing performance, anti-bending performance, anti-folding performance and quake-proof performance of a wall body. Bidirectional intensively ribbed grid structure type division enables the integrity and air tightness of the wall body to be enhanced. A heat preservation layer and a heat insulation layer are flexibly arranged, thereby cutting off a heat bridge channel to the largest extent and having good weather resistance. Advanced bin-division type fire-proof concept not only meets the requirements of the nation for buildings, but also reduces loss caused by fire hazard to the largest extent. Assembly type construction can achieve water-free and dust-free operation, thereby being fast, hygiene and environment-friendly, saving materials and lowering manufacture cost.

Disclosed is a constant-temperature insulation steel silo. A common steel silo is already widely used as being low in cost and fast in construction and is unsuitable for long-term storage of grain and only suitable for revolving as not having an insulation function. The constant-temperature insulation steel silo is composed of a foundation (1) and a silo body (2) connected with the foundation, an insulation layer (3) is fixed to the outer side of the silo body through connectors, a peripheral plate (4) is fixed on the insulation layer or the silo body through supports, and the insulation layer and the peripheral plate form an air heat-insulation course. The constant-temperature insulation steel silo is used as a granary for long-term grain preservation.

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.

The invention provides an H-shaped steel concrete column with a high-strength spiral hoop and a restraining high-strength wide flange and relates to a sectional steel concrete column. The defects of the present I-shaped and H-shaped steel concrete columns that the construction is difficult, the anti-bending function of the sectional steel is not completely utilized because a concrete protecting layer is thick, and the high-strength sectional steel is easy to press and deflect are overcome. A longitudinal reinforcement is abolished, a steel area is converted into the sectional steel flange and the construction and the design of the sectional steel concrete column are convenient to perform. The spiral hoop is a high-strength rectangular spiral hoop; the inner side of the spiral hoop of the restraining sectional steel flange is clung to the surface of the sectional steel flange; and an unstable critical stress of the sectional steel flange is increased by a free edge of the restraining sectional steel flange; the spiral hoop is tightly combined with the flange, so that a function of a bolt is achieved and the concrete can more effectively coordinate with the sectional steel; the concrete protecting layer of the sectional steel is 30-40mm thick, thereby being fireproof requirement and fully utilizing the anti-bending function of the sectional steel; a screw pitch of the rectangular spiral hoop is 0-60mm, so that the restraining condition of the free edge of the restraining sectional steel flange is obviously improved; and the H-shaped steel concrete column provided by the invention is applied to a sectional steel concrete structure.