Automatic cooling fireproof steel structure

Abstract

The invention discloses an automatic cooling fireproof steel structure. The automatic cooling fireproof steel structure comprises a steel structure body (1), wherein an inner cavity (2) is formed in the body (1), an exhaust pipe (3) is arranged on the upper part of the inner cavity (2), a water inlet pipe (4) is arranged on the lower part of the inner cavity (2), the water inlet pipe (4) is communicated with a water source (9) by virtue of a water pump (5), a temperature sensor (6) is further arranged in the inner cavity (2), the tail end of the temperature sensor (6) is connected with the signal input end of a PLC (Programmable Logic Controller) (7), and the signal output end of the PLC (7) is connected with a stop valve (8) which is arranged between the water pump (5) and the inner cavity (2). According to the structure, the temperature sensor is arranged in the inner cavity, so as to monitor the temperature of the steel structure in real time and continuously feed back to the PLC in a signal output manner, received information is compared by the PLC, an instruction is sent to the one-way stop valve in the condition of water injection, and the water pump is turned on to inject water, so that automatic fire prevention of the steel structure is realized.

Description

technical field [0001] The invention relates to a steel structure, in particular to an automatic cooling fireproof steel structure, which belongs to the technical field of steel structures. Background technique [0002] Due to its light weight, high working reliability, good earthquake resistance, impact resistance and high industrialization of manufacturing, steel structures are recognized by people and widely used in large public buildings, but due to their existence The defect of poor fire resistance, therefore, the fire protection of steel structures is extremely important. [0003] At present, some manufacturers improve the fire resistance of the inner cavity of the steel structure by pouring water into it. Specifically, in addition to setting the water inlet pipe at the lower part of the inner cavity, vent holes are also set at the upper part of the inner cavity of the steel structure. This is to prevent the inner cavity from However, with such a structural setting, i...

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Problems solved by technology

[0002] Due to its light weight, high reliability of work, good shock resistance, good impact resistance and high degree of industrialization in manufacturing, steel structure has been recognized by people and widely used in large public buildings. The defect of poor fire resistance, therefore, the fire protection of steel structures is extremely important

[0003] At present, some manufacturers improve the fire resistance of the inner cavity of the steel structure by pouring water into it. Specifically, in addition to setting the water inlet pipe at the lower part of the inner cavity, vent holes are also set at the upper part of the inner cavity of the steel structure. This is to prevent the inner cavity from However, with such a structural setting, in long-term use, the moisture in the inner cavity will evaporate through the exhaust pipe, and the temperature will naturally rise with the reduction of moisture, which cannot meet the temperature requirements for fire protection, and finally makes the steel structure in dangerous state

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