Crisscross water mist fire shield system

Abstract

The invention discloses a crisscross water mist fire shield system. The crisscross water mist fire shield system comprises a high-level water tank, a high-pressure fire pump, a high pressure resistant metal hose and a water mist jet device which are sequentially connected through a water delivery steel pipe. The high-level water tank is provided with a make-up water supply and a water level gauge. High pressure resistant locking adapters are arranged at the two ends of the metal hose. The water mist jet device comprises four arc-shaped metal pipes which are distributed in a crisscross mode, supporting anchors installed below the tail ends of the metal pipes, a high-pressure water uniform distributor arranged at the junction of the four metal pipes, and upper and lower reinforcing ribs connected with the four metal pipes. Upper ports of the four metal pipes communicate with the high-pressure water uniform distributor. The tail ends of the four metal pipes are closed and form a concentric circle. A plurality of water mist nozzles with openings facing downwards are arranged in the circumferential direction of the metal pipe. The crisscross water mist fire shield system is simple in structure, good in stability and large in coverage area of fire extinguishing, can rapidly and effectively extinguish fires caused by flammable liquid or gas leakage of underground pipelines as well as fires at underground adit entrances, and further has a cooling effect.

Description

technical field [0001] The invention relates to the field of fire protection, in particular to a cross-shaped fine water mist fire extinguishing hood system. Background technique [0002] In recent years, due to the rapid development of my country's economy, the layout of underground oil and gas pipelines is intricate, and the pipelines are often damaged due to factors such as earthwork excavation or ground subsidence. The damaged pipelines quickly escape flammable media and cause major Fire, this kind of accident happens from time to time all over our country. For these pipeline fires, according to technical requirements, it is necessary to first extinguish the fire and then close the valve, and then excavate for maintenance. The traditional fire extinguishing method is to spray dry powder fire extinguishing agent in the area near the burning point to extinguish the fire. Once there is wind, a large amount of fire extinguishing agent is blown away by the wind, the fire exti...

AI Technical Summary

Problems solved by technology

Once there is wind, a large amount of fire extinguishing agent is blown away by the wind, the fire extinguishing speed is slow, and the waste of fire extinguishing agent is serious. After the fire is extinguished, secondary pollution will be generated and oil products will be polluted.

However, the existing double-layer annular water mist fire extinguishing hood system is limited by the annular space, and the fire extinguishing range is small, and the installation position of the fire extinguishing nozzle also requires high precision, otherwise lodging will easily occur during the spray fire extinguishing process, which will affect the fire extinguishing effect or inability to extinguish the fire

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