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Cryogenic Liquid Pumps

Description

A cryogenic pump, also known as a cryogenic liquid pump, is extensively utilized in the oil, gas processing, and chemical industries for the transportation of cryogenic liquids such as liquid oxygen, liquid nitrogen, liquid argon, liquid hydrocarbons, and liquefied natural gas (LNG), among others. Its primary function is to transport cryogenic liquids from low-pressure to high-pressure areas. As gas separation technology advances, cryogenic liquids are increasingly finding applications and undergoing rapid development.

Cryogenic Liquid Pumps

In air separation units, the cryogenic pump plays a crucial role in either circulating the liquid or extracting it from a storage vessel and delivering it to an evaporator, where it is subsequently vaporized and supplied to the end-user. Given that the medium in a cryogenic pump is a cryogenic liquid, it is essential to maintain the medium at a low temperature during the transfer process. If the pump absorbs too much heat, a significant amount of cryogenic liquid in the pump will evaporate and form gas, which can adversely affect the pump's operation. Therefore, cryogenic pumps have specific requirements for their design, materials, installation, and operation to meet the necessary conditions for transporting cryogenic liquids.

Depending on different operating principles, cryogenic pumps are primarily classified into two types: reciprocating and centrifugal pumps.

Technical Specifications

Flow Rate:

  • 15-75 L/h

  • 30-80 L/h

  • 50-300 L/h

  • 100-450 L/h

  • 200-600 L/h

  • 400-800 L/h

  • 1000-2000 L/h

Type A: Horizontal, Single-Cylinder, Reciprocating Pump

Maximum Outlet Pressure:

  • 20 MPa

  • 16.5 MPa

  • 5 MPa

  • 3 MPa

Minimum Inlet Pressure:

  • 0.02 MPa

Maximum Inlet Pressure:

  • 0.8 MPa

Input Power:

  • 318 V, 3-phase, 50 Hz

RPM:

  • 600-1250 RPM

Motor Power:

  • 5.5 kW

  • 7.5 kW

These specifications ensure the cryogenic pump's optimal performance and reliability in various industrial applications, making it a critical component in the efficient handling of cryogenic liquids.

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