Transportation system based on variable-frequency LNG high-pressure pump

The utility model discloses an output system based on a variable-frequency LNG (liquefied natural gas) high-pressure pump, which comprises the variable-frequency LNG high-pressure pump, a variable-frequency control system, a flow regulating valve, a gasifier, a metering system, a return valve and a frequency converter, the output end is connected with the gasifier through a flow regulating valve and is connected with the input end through a return valve for auxiliary flow regulation; the variable-frequency control system is connected with and controls the rotating speed of a motor of the variable-frequency LNG high-pressure pump through a frequency converter so as to adjust flow and pressure; the gasifier is connected with a metering system, and gasified natural gas is metered and sent to a natural gas pipe network through the metering system. The output system is matched with a natural gas pipeline network to output natural gas, and power consumption is low. 本实用新型公开了一种基于变频LNG高压泵的外输系统，包括变频LNG高压泵、变频控制系统、流量调节阀、