Test bench and test method for sound insulation performance of pipeline heat preservation binding structure

The invention discloses a test bench and a test method for sound insulation performance of a pipeline heat preservation binding structure. The test bench comprises a loudspeaker system, a transition pipe section between a loudspeaker and a test pipeline, an elastic supporting piece, an anechoic chamber and a reverberation chamber. The loudspeaker system is composed of a loudspeaker, a power amplifier and a signal source. The elastic supporting piece is used for fixing the test pipeline in the loudspeaker system; the test pipeline is located in the reverberation chamber, and the sound absorption structure at the tail end of the test pipeline is located in the anechoic chamber. According to the invention, all parts of the sound insulation performance test system for the pipeline heat preservation binding structure are designed as an integral comprehensive system, a design step optimization process block diagram is provided, and the test system is ensured to have enough sound insulation performance test capabili