Design and selection of fire dampers produced by fire damper production lines

The smoke and fire dampers are now analyzed in combination with the specific ventilation system: the air supply fans in the underground garage should be equipped with electric air volume control valves or fire control valves (automatically closed at 70°C). If the air supply system needs to be shared with the fire-fighting mechanical air supply system, an electric air volume control valve that automatically closes at 280°C should be used. The suction port should be analyzed in detail. For blowers that draw air directly from the outside (ie, only the ground floor garage), the suction port may not be equipped with a fire damper. When there are multiple fans in the fan room, a check valve should be set at the suction port of each fan; for a multi-storey underground garage, when the air shaft is used for centralized air intake, a fire damper or a fire damper should be set at the suction port of each fan. Fire control valve (automatic closing at 70°C).

Supply and exhaust ducts should not pass through fire barriers such as firewalls and non-combustible floors. If passing, a 70°C fuse, smoke and fire damper should be installed in the pass. When fire smoke passes through the fire partition, the fire damper should be closed immediately. Electric air volume control valves are generally controlled by smoke detectors instead of fusible metals or fusible elements, which can prevent the spread and expansion of fire in a timely and smooth manner.

What are the storage requirements for fire damper production lines?
Various damages will occur in the automatic production line of fire dampers during use. These damages can lead to changes in the structural parameters of the parts of the automatic fire dampers production line. When the damage develops to the extent that the structural parameters exceed the allowable range, the automatic production line of fire dampers will have potential failure. Safety factor, so even if the structural parameters of some parts exceed the allowable value, the functional output parameters of the automatic fire valve production line are still within the allowable range, and there will be no functional failure.

It generally takes a long time to develop from a potential failure to a functional failure, because the development of damage can be eliminated or slowed down by maintenance methods such as cleaning, tightening, and adjustment, so that the occurrence of potential failures can be controlled or even eliminated to a certain extent. . It can be seen that hidden troubles can be repaired to reduce the occurrence of functional failures, thereby greatly extending the service life of the automatic fire valve production line.

Since the occurrence of wear, corrosion, fatigue, aging and other processes is closely related to time, the occurrence of failures in automatic fire valve production lines is mostly related to time. In the process of use, damage will gradually occur, and the mechanical parameters of the parts will also gradually change. Its performance parameters also gradually deteriorate, so the longer the fire valve automatic production line is used, the greater the probability of failure, and the progressive nature of failure can prevent most failures.

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