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Fire, smoke exhaust valve in the project there are some problems
1, fire control room to send, return duct in its wall without fire damper. During the course of the construction audit, it was found that some engineering drawings on the control room to send and return duct in its wall without fire damper, which is inconsistent with the "fire alarm system design specification" GB50116-98 in 6.2.2. The purpose of fortification fire valve is to ensure the fire control room fire safety. 2, fire control equipment on the smoke, smoke control facilities, display imperfections According to the specification GB50116-98 in the provisions of Article 6.3.9: After the fire alarm confirmation, you must stop the relevant parts of the air conditioning, turn off the electric fire Valve, and receive the feedback signal; at the same time start the relevant parts of the smoke and exhaust fan, exhaust valve, etc., and receive its feedback signal. Some engineering linkage control can not be partitioned control exhaust valve, exhaust port, and some can not receive the feedback signal, can not reflect the valve opening and closing conditions. 3, pipe network gas fire extinguishing system without pneumatic fire damper. Section 6.3.4.3 of GB50116-98 requires: "During the delay period, the fire doors and windows shall be automatically closed and the ventilation and air-conditioning system shall be stopped and the fire damper of the relevant site shall be closed." This requires that in the gas fire-extinguishing system of the pipe network, pneumatic Fire damper, and fire control equipment linkage. In individual projects do not have this feature. 4, the supply air and exhaust duct without long-distance control Some buildings basement, the use of air supply and exhaust manifold parking duct, we found that the blower and exhaust valve in front of the globe only manual, can not achieve control Room remote control, usually, blower work, the front of the globe valve is open, in case of fire, the need to go to the scene to close the fan before the stop valve, it is not practical, a direct impact on the exhaust system. Therefore, it is recommended to increase the remote control valve function.