【 Weak current College 】 normally opened fire door design issues summary

Fire door is building level fireproofing key measures —. In building fire door design, architectural features, including a form is normally opened fire doors, the principle is under normal conditions, the fire doors are normally open, fire occurs rapidly close themselves, to prevent fire spread and smoke dispersion. To this end, the national standard of the automatic fire alarm system design specifications "make clear and specific requirements. However, due to factors such as design or application, the current domestic settings of many normally opened few meet the national fire code requirements, there cannot be their own closed issues, which have set up fire door almost useless, play the role of fireproofing.
Main reasons:
One is to understand the role of the fire door. Fire door mainly refers to a certain period of time to meet fire resistance stability, integrity and insulation-requires the doors. It is set on fire partition, evacuation staircases, vertical pipe shaft Inspection Department has a fire resistance of fire compartmentation, at one time, prevent the spread of fire and smoke diffusion, security evacuation has played a very important role. However, in practical design and use of the work, whether it be a designer, or the use of units, on the important role that some workers blurred concepts, recognizing the importance, or even do not know the meaning of the set.

The second is normally opened fire door of knowledge is not enough. Normally opened fire doors and other fire door in comparison, in production, increased a self closing feature. Its features are primarily rely on electromagnetic release valve or magnetic door suck, door closer and automatic control system. In everyday buildings normally opened fire door design, due to the automatic control system equipment manufacturers and fire door manufacturers, automatic control system equipment manufacturers and production normally opened fire door to close the product, the product sample there was no fire door control practices that designers are difficult to grasp and understand the expertise, they normally opened fire doors designed to recognize common misconception is that normally opened is the common fire doors in the use process often open. Therefore, in the design-time only as a general fire door design.
The third is the professional design with insufficient coordination between. In carrying out the building normally opened fire door design, the General need to involve two professional closely, together. One is building professional, the other is the electrical profession. First of all by the architectural profession in accordance with national standards of the architectural design of the fire code or the senior civil building design fire protection standard for normally opened fire door for layout and design, installation and implementation by electrical professional to design their own close function. However, this is not the case. In this design, the two professional often disjointed, combined with inadequate coordination. In the building normally opened fire door layout design, only specify a location normally opened fire door and some basic instructions, to the achievement of the voluntarily shut down function does not do detailed account without timely and professional electrical and electrical design of the ventilation on architectural features and no serious analysis, carefully results normally opened fire door design that critical issues were neglected. This is the main reason.
Fourth, fire door to close the production gateway manufacturers propaganda is not enough. There is a saying in the Tang dynasty Han Yu: Chollima often, but often not James Blake. Leading knowledge, advanced technology, to let the world know and master, should have an advocacy process. In fire product publicity, fire door manufacturers often advocacy focused on market demand for products, such as ordinary common fireproof、wooden fireproof door, door closer, no highlighting dosage of fire door to close the product of our society, the majority of architectural design, the units on this no more comprehensive knowledge and understanding, in design practice, not good.