Protection of turbine halls of power plants from exposure to high temperatures in fire conditions

There are numerous cases when fires in power plant turbine halls causes the collapse of roof metal structures. The use of conventional firefighting equipment in high-bay facilities has proved to be ineffective or unacceptable. In this situation fire robots are the most feasible option. Today the bes...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-03, Vol.789 (1), p.12054
Main Authors: Pykhtin, A I, Tomakov, M V, Tomakov, V I, Anikina, E I, Brezhnev, A V
Format: Article
Language:English
Subjects:
Fire fighting
Fire protection
Fire resistance
Fire safety
Flow velocity
High temperature
Infrared detectors
Low visibility
Power plants
Robots
Roofs
Spraying
Turbines
Wetting
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Summary:There are numerous cases when fires in power plant turbine halls causes the collapse of roof metal structures. The use of conventional firefighting equipment in high-bay facilities has proved to be ineffective or unacceptable. In this situation fire robots are the most feasible option. Today the best variant is a fire robot that is based on a traditional fire monitor and equipped with infrared fire seat detectors. Some specific advantages of fire robots include their ability to operate under low visibility with high smoke generation conditions that are typical of a fire in a turbine hall. The program of roof structures cooling down is designed and tested in advance so that fire robots can perform their functions in automatic mode. Fire robots can be included into permanent-type fire safety systems that are designed taking into account specific construction features of a facility and temperature conditions in case of a fire. Such composite system is a multifunctional complex that is able to perform versatile fire protection functions. The most appropriate fire robot types to be used in such complex fire protection system are fire robots based on conventional fire monitors, as they have some notable advantages compared with mobile robots or androids. One of them is their ability to protect big areas starting from 5 and up to 15 thousand square meters with fire suppressing media flow rate range just 20-60 l/sec correspondingly. Water or foam can be delivered via air exactly to the fire seat instead of spraying over the total designed area. Moreover, wetting intensity can be maintained at a level that corresponds to fire seat intensity.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/789/1/012054