Device and liquid nitrogen pump truck are annotated to liquid nitrogen pump

The utility model discloses a device and liquid nitrogen pump truck are annotated to liquid nitrogen pump, liquid nitrogen pump annotate the device and include liquid nitrogen container, centrifugal booster pump, plunger pump, heat recovery heater, direct combustion formula evaporimeter, high -pressure header and actuating mechanism, liquid nitrogen container's output is linked together with centrifugal booster pump, plunger pump, heat recovery heater, direct combustion formula evaporimeter and high -pressure header in proper order, actuating mechanism's the output shaft and the main shaft of plunger pump link to each other, the liquid nitrogen pump truck, including the chassis, it annotates the device to be equipped with aforesaid liquid nitrogen pump on the chassis. The utility model discloses a heating fluid nitrogen of establishing ties is synthesized to heat recovery and direct combustion, can reach to improve the engine utilization ratio, to save the fuel, to reduce use cost's purpose when satisfying the big discharge capacity operation of nitrogen gas.