Fireproof door pressure drop and airflow regeneration noise testing method and fireproof door detection method

The invention provides a fireproof door pressure drop and airflow regeneration noise testing method and a fireproof door detection method. The fireproof door pressure drop and airflow regeneration noise testing method comprises the steps that ventilation airflow with the preset ventilation quantity is introduced into a sound source chamber through a ventilation pipeline, the ventilation quantity of the ventilation airflow is equal to the ventilation quantity passing through a fireproof door, and the sound source chamber is communicated with the ventilation pipeline; a three-point sound pressure level with a preset radius from the center of the ventilation fence is measured in the sound source chamber, and a sound power level Lw, 1 entering the ventilation fence is calculated; the sound source chamber is communicated with the receiving chamber through the ventilation fence; the sound pressure level of each position in the receiving chamber is measured; according to the invention, the problem that the fireproof