Double-pump cavitation-erosion-prevention refilling system

The invention discloses a double-pump cavitation-erosion-prevention refilling system. The double-pump cavitation-erosion-prevention refilling system comprises an LNG storage cylinder; the LNG storagecylinder is connected with a booster through a first pipeline; the booster is connected with the LNG storage cylinder through a second pipeline; the LNG storage cylinder is connected with a first immersed pump and a second immersed pump through a liquid outlet main pipe; a first pressure transmitter and a first temperature transmitter are connected onto a third pipeline; a second pressure transmitter and a second temperature transmitter are connected onto a fifth pipeline; the first pressure transmitter, the first temperature transmitter, the second pressure transmitter and the second temperature transmitter are separately connected with a controller through a signal line; and the controller controls the booster, an automatic valve on a seventh pipeline and an automatic valve on a ninth pipeline. The double-pump c