In recent years, with the fast development of China’s economy, a huge space such as the continuing mushrooming. Large space consists of a large space for commercial buildings? Targeted traffic creating? Sports creating? View speech building. These buildings compared with traditional architecture, in terms of scale? Function, or structure? Materials have been significantly improved. Nonetheless, due to the complexity of big space structures? Personnel density? Ventilation Poor condition of the qualities of the occasion of fire, smoke spread swiftly, space is bound to decreased visibility brought on by personnel turmoil and unrest, top to massive casualties employees. Information indicate that: almost 70 ~ 80% of fire personnel casualties have been due to suffocation from smoke caused by heart disease or a hot lure for the drug charges, rather than as a result of direct make contact with with the fire burning, such as the Wenzhou “12 12” big fires killed 21 individuals, including fire smoke simply because there are virtually no contact with deadly fire which killed 19 people was smoke smoke, visible smoke control style in the huge space to the important part. As a result, how to reasonably and appropriately in the early use of fire smoke Technology The maximum degree of reduction of fire losses and casualties, is at the moment functioning in the fire difficulties to be solved.
One particular, smoke manage style in the huge space in the sensible application
With the building technologies, construction location is developing, many big space developing in the area have more than 10,000 square meters. In many instances, these buildings are involved in operating food and beverage, Clothing And other little pavement, fuel and more mobility density, in the event of fire can effortlessly cause the death of a huge quantity of groups vicious incident injury group. In practical engineering, the majority of provinces and cities the fire department calls for the creating need to be smoke facilities 2001 revised “architectural design code for fire protection” clause five.1.3A section necessary to be fortified underground space smoke shop facilities in the “civil HVAC Design measures “(second edition), section 4.eight, offer for more fuel? Big movement of large construction projects need to be made Smoke Control . Is properly identified in the fire, the smoke is far higher than the harm to human fire, only smoke exclusion or isolation will be the implementation of fire evacuation and safety, it is necessary to increase the implementation of smoke control style in the large space in the practical application .
The face of huge engineering, smoke handle style in which the application is essential: 1st, the roof of the underground plaza further large skylights, the skylights are equipped with automatic exhaust shutter, in case of fire , smoke exhaust system can automatically prompt emission to the outside secondly, to design with out the best of the open space, open space, the width of a certain extent, inhibit the spread of fire, smoke the exact same time can play? cooling effect favorable personnel evacuation when again, to design and style the smoke staircase Lastly, portion of the safety partition can not meet the specifications of safe evacuation, and can not enhance the smoke staircase, you can smoke by growing the amount of ways to rapidly evacuate personnel exhaustion usually by 30m3 / h or six occasions / h for the calculation.
Second, big space in the optimization of smoke control technique style idea for huge space creating, designed smoke manage facilities is important. Smoke is to smoke handle in a particular area, to make sure that fire evacuation routes from smoke effects, and higher-temperature exhaust gas sucked fires and take away toxic gas, to avoid smoke spread to smoke outside the district, ensure safe evacuation routes and evacuation time.
(A) of the smoke exhaust from facility design suggestions into mechanical smoke extraction approach and the window can be opened to exhaust the organic way, according to the relevant common setting variety, the system must be created exhaust note of the following points: 1. stairwell close to the wall, it can be taken via the window or balcony natural draft mode when situated inside must be the 1st use of sturdy stress ventilation or mechanical exhaust decompression chamber set mandatory strategy to ensure the stairs smoke can not enter the area two. exhaust port location of style. The organic smoke is by way of the outer walls of windows can be opened directly into the outside and for that reason be an effective opening area, the present national standard in the quantitative evaluation is not an area the size of the window, window exhaust the literature that The window area of not less than 15% of the projected area of the ground, and ought to be in a position to automatic? manually open 3. Fire Damper Design and style.