Big Space in fire early warning and automatic fire extinguishing technology
Place for the large space, the general fire detection technology can not discover the fire, commonly used closed spray Fire extinguishing system Can not effectively play the role, combined with a PDP (plasma display) large space clean room space of a large fire place early warning and Automatic fire extinguishing Technology and the application of the plant. According to the special features of the plant selected in the non-clean range IR On radio-type fire detection system, set in the range of VESDA system clean. Integrated product technical performance, price and other aspects of automatic Spray Fire extinguishing systems selected closed fast response sprinkler system.
Large space with the smoke of early fire smoke dispersion, settlement and the characteristics of thermal barrier effect, because the dispersion, settlement and other reasons, early fire smoke produced will not necessarily rise to the floor of the roof, not conducive to smoke detection is used near the ceiling to be fire detection, even if the smoke can rise to the ceiling, also because the temperature is too low, not conducive to the use of thermal fire detection and sprinkler systems in fire protection closed, may also lead to the natural row the failure of smoke. Even if the detectors and sprinklers to action, following the fire has grown to considerable size, delayed early warning, fire a favorable opportunity, and the commonly used closed sprinkler system erupted in the droplet sizes and flow rate are more small, the general size of the droplet surface before you reach the flames, the smoke plumes have been quickly broken up and evaporation, will not achieve fighting role. In addition, the large space inside the pipe net-automatic sprinkler system startup conditions often not met, does not apply to such establishments in the early fire fighting. So, how to solve the large space building fire safety? The following combination of a large space clean production PDP plant will be discussed.
An engineering summary A PDP (PlasmaDisplaypanel, referred to as PDP, Plasma Display) flat large space clean room rectangular building, the main length of 308.5m, a width of 146.0m, covers an area of 45953.3m 2 Building area 104918.5m 2 . Building height of 23.2m, three partial basement floor, ground floor as the PDP module production area, the second floor is the local production of experimental area, three large bay equipment layer. It PDP project's main production plant, designed the production line as the center, production line and a variety of craft room formed by a huge central production areas reflect the majesty of the company, technical support on both sides of the central production area into a symmetrical layout area, will enter through the main hall after the visit of a circular walkway. The plant is the first production PDP our domestic base. Fire protection requirements in accordance with the architectural design of the production plant fire risk designated as a Class C, fire resistance class according to a set.
Second, the plant fire detection system selection and design
The clean room equipped with expensive equipment, apparatus, and the construction of expensive, once on fire, huge losses. At the same time within the clean room staff access to tortuous, difficult evacuation, fire difficult to find, fire inaccessible, fire has some difficulties. To achieve the level of indoor cleaning, clean room on the air, space, ventilation rates there are higher requirements. Once shut down after fire Clean air System, even if the resume will also affect the cleanliness requirements to reach the production process for losses. Moreover, disruption of production can not make up for losses. Therefore, we clean the plant according to interval and non-clean zone fire district separate principles for different intervals to meet the existing norms should also be according to special requirements for clean rooms and reasonable choice of fire detection systems in order to achieve a very early warning fire, in a timely manner take effective measures to control and extinguish fire, to reduce or avoid fire losses, and protect personal and property safety.
1, non-clean range of fire detection system of choice
Through extensive literature and data obtained: the general selection for large space optical cross-section images places Smoke detection system, early visual smoke detection (VSD) Fire Alarm System or with infrared detecting system. From the reliability of comparison, the two image-based exploration system is more suitable for large space.
I am a professional writer from Mp3 Player Manufacturers, which contains a great deal of information about cannondale synapse carbon , strawberry shortcake bike, welcome to visit!
Processing your request, Please wait....
