Economizer and magnetic suspension centrifugal water chilling unit

The utility model relates to the technical field of refrigeration equipment, and discloses an economizer and a magnetic suspension centrifugal chiller, the economizer comprises an economizer body, the outer surface of the right side of the economizer body is provided with a liquid level tank, and the outer surface of the bottom of the economizer body is fixedly communicated with a liquid level balance pipe; detection boxes are fixedly communicated with the outer surfaces of the two connecting pipes, floating plates are arranged on the inner surfaces of the two detection boxes, top blocks are fixedly connected to the outer surfaces of the tops of the floating plates, connecting plates are fixedly connected to the inner surfaces of the tops of the two detection boxes, and pressure sensors are fixedly mounted on the outer surfaces of the two connecting plates. According to the economizer and the magnetic suspension centrifugal water chilling unit, the liquid refrigerant drives the floating plate to drive the top