Thermal-insulation fireproof steel structure

Abstract

The invention discloses a thermal-insulation fireproof steel structure. A steel structure body (1) is a square steel tube or a round steel tube, multiple hollow tubes (2) with two closed ends are arranged inside the steel structure body (1), and the upper portion of an inner cavity of the steel structure body (1) is connected with an exhaust pipe (3); the lower end of the inner cavity of the steel structure body (1) is connected with a water inlet pipe (4), the upper end of the same side is connected with a water outlet tube (5), a water source sequentially passes through a water pump (6) and a one-way valve (7) to enter the inner cavity of the steel structure body, a starting switch of the water pump (6) is connected with an electromagnetic valve (8), and the other end of the electromagnetic valve (8) is connected with a temperature sensor (9). The interior of a steel structure building can be kept at constant temperature for a long time, and meanwhile fireproofness can be achieved effectively at a low cost.

Description

technical field [0001] The invention relates to a steel structure, in particular to a thermal insulation and fireproof steel structure, which belongs to the technical field of building materials. Background technique [0002] Steel structures are mainly used for load-bearing skeletons of heavy workshops, plant structures subject to dynamic loads, plate shell structures, towering TV towers, bridges, warehouses and other long-span structures. Inject cooling water into the inner cavity of the steel structure to adjust the temperature in the steel structure building, and then cover the outer surface of the steel structure with fireproof materials or paint fire-resistant paint. On the one hand, this structure is expensive, on the other hand, it cannot Maintain the constant temperature of steel structure buildings for a long time. Contents of the invention [0003] The invention provides a heat-preserving and fire-proof steel structure, which can maintain a constant temperature...

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Problems solved by technology

[0002] Steel structures are mainly used for load-bearing skeletons of heavy workshops, plant structures subject to dynamic loads, plate shell structures, towering TV towers, bridges, warehouses and other long-span structures. Inject cooling water into the inner cavity of the steel structure to adjust the temperature in the steel structure building, and then cover the outer surface of the steel structure with fireproof materials or paint fire-resistant paint. On the one hand, this structure is expensive, on the other hand, it cannot Long-term maintenance of constant temperature in steel structure buildings

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