Bass low-noise semi-displacement heat exchanger

The utility model discloses a bass low noise semi-displacement heat exchanger, including volume tank, also including cleaning subassembly and heat exchange tube, the one side of volume tank is inlayed and connected with the cleaning subassembly, the cleaning subassembly includes motor, threaded rod, outer scraper blade and inner scraper blade, threaded rod is rotatingly connected in volume tank, and the inner scraper blade is connected with the motor. One end of the threaded rod is detachably connected with the power output end of the motor, the outer scraping plate is in threaded connection with the surface of the threaded rod, the inner scraping plate is fixedly connected to the center of one side of the outer scraping plate, the inner scraping plate is connected to the surface of the heat exchange pipe in a sleeving mode, and limiting sliding grooves used for limiting sliding of the outer scraping plate are formed in the two sides of the interior of the volume tank correspondingly. By arranging the cleanin