Cryogenic Liquid Pump

The cryogenic liquid pump is suitable for liquid oxygen, liquid nitrogen, liquid argon filling systems and L-CNG filling station systems. It pressurizes and vaporizes the low-temperature liquid in the storage tank and then fills it into steel cylinders or CNG vehicless, with a maximum outlet pressure up to 40.0MPa or more.

The high-flow reciprocating low-temperature liquid pump is suitable for liquid oxygen, liquid nitrogen, and liquid argon medium-pressure process systems. It pressurizes and vaporizes the low-temperature liquid in the storage tank and directly enters the pipeline network. The carbon dioxide liquid pump, as the main components of carbon dioxide filling systems, is used for carbon dioxide charging. It pressurizes the liquid carbon dioxide in the storage tank and fills it into the steel cylinder. Its simple and optimized design and careful manufacture ensure long-term safe and reliable operation.

The pump mainly consists of motor, electric control cabinet, belt pulley, transmission wheel, transmission box and pump head.

The role of the pump drive end is to change the rotational motion of the motor into reciprocating motion, and transmit the output power of the motor to the compression end of the pump head. The motor completes the conversion through pulleys, eccentric wheels, connecting rods, crossheads and other components. The shaft, cam and bearing structure of the transmission system are oil-immersed.

The hydraulic end of the pump head is composed of a cylinder liner, cylinder body, piston assembly, seals, discharge valve, and damper. Its main components are made of stainless steel material with a long working life. The seals consist of a combination of various sealing components to ensure reliable and trouble-free operation of the pump at normal operating pressure.

■ The transmission mechanism has a long service life due to the connecting rod and crosshead structure.

■ The high-pressure reciprocating low-temperature liquid pump adopts a high-vacuum cold-end jacketed pump head, which has small cold loss and liquid loss;

■ Built-in filter, practical and reliable;

■ Piston rings and sealing rings are made of high-molecular composite materials with good wear resistance, which have a long service life and can generally be used for more than 150,000 bottles;

■ Easy to operate, the boot time is less than 5 minutes;

■ The work of the pump will not cause the pressure of the storage tank to increase, but the pressure will decrease after working for a long time;

■ Low energy consumption, low noise operation;

■ Simple structure and easy maintenance.

■ Pump head and parts

■ Transmission box and parts

■ Motor, belt and pulley

■ Electric control box

■ Bellows compensator

■ Damper (with pressure gauge)

■Safety valve;

■High pressure check valve 950H15;

■The storage tank itself has stop valves for liquid discharge and air return, which can be purchased separately if necessary;

■ We can also design and manufacture various special cryogenic liquid pumps according to the special requirements of users, such as: cryogenic liquid pumps with ultra-large flow rate and ultra-high pressure, and cryogenic liquid pumps with long-term continuous operation.

■ All available valves to cut off the pipeline should be equipped with safety valves;

■ The environment should be clean and oil-free;

■ Parts, pipelines and valves used in oxygen medium should be strictly degreased;

■ Smoking is strictly prohibited.

■ One-year warranty for this series of products;

■ Long-term maintenance commitment for this series of products.

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