Monday, January 3, 2011
【 Weak current College 】 intelligent fire sprinklers in fighting the fire's special role
Intelligent fire sprinkler is the use of microelectronics sensing technology, the CPU processes and machinery universal turning device for organic integration, manufacturing of mechanical-electrical integration of fire sprinkler head. It has a fire detection, scanning and positioning, automatic start of fire pumps, also issued a variety of sound and light alarm function.
Smart sprinkler control part adopts sensor receiving devices (temperature sensor, PC), accept the flame signal, signal processing establishments in the signal amplification and identification, the judgment is passed to the driver, the zoomed, comparison output driver signal, the nozzle for horizontal, vertical, full scan, the nozzle at the start of the fire point; at the same time, the launch of electric valve for extinguishing fire pumps, and issued harsh light alarm.
Smart nozzle has the following characteristics:
1, the function diversification
Previous set of automatic sprinkler system, while at the same time equipped with automatic fire alarm system, the formation of mutual independence of the two systems. The intelligent fire system, confirm that the startup after fire sprinkler pump at the same time issued a sound and light alarm. Reducing repeat settings, the system simplifies the construction and reduced engineering costs.
2, open quickly
In order to enhance the speed of normal nozzle opening, reducing response time index (RTI), come out near the "quick response sprinklers" (ESFR), although already in the works, but because of its head out of the flow is relatively small, the present application is also limited and residential buildings, small space. Smart nozzle in a controlled area in the event of fire, the start time t ≤ 20 seconds, compared with ordinary sprinklers, intelligent fire, system can be opened approximately 60 seconds ahead of time.
3, Jet-intensive
In order to overcome the normal sprinkler droplets smaller, cannot effectively penetrating heat of the flame rises air shortcomings appear big drops of water sprinkler, fire sprinkler system is one of the trends. Smart nozzle appear fully conforms to the automatic sprinkler system development trend, he intensively with Jet, Jet strength big benefit, etc., and have a simulation of artificial swing function. To the "roof", for example, in the installation height 6 m, straight Jet strength q = 83L/min.m2, can effectively penetrate the flame, fight a fire.
4, auto-close
Requirements for automatic sprinkler system repeats the current specification is open and close, a new technology allowing the system to fight a fire can automatically turn off the system, the event comes alive again open sprinkler, but at present in our country there is no such fire protection products.
Intelligent fire system, fire resistance, the system can quickly open fire water stops, the system automatically turns off; if there is a recurrence, the system can duplicate the functionality described above. The system not only reduces water stains on the place of harm, while saving a lot of water.
5, suitable for large space
With the continuous development of urban construction, special buildings, growing large space building, for a single-storey over 8 meters, even the space above the ordinary automatic sprinkler systems have been unable to meet the need for fire, and the "Central hanging intelligent devices, not only has a larger coverage area (protection RADIUS 15 m), and have a large number of simulated fire test data and project support, the system has a higher confidence level, the intelligent application of fire-fighting system with broad prospects. This type of fire protection products, it is bound in industrial and civil construction and fire protection on play their proper role. Large room, large-volume intelligent fire appliance will have more brilliant tomorrow.
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