Gases Liquifiers

liquifierHi-tech Engineered Solutions has years of experience in the construction of Oxygen, Nitrogen, Argon, liquefaction systems. We have designed liquefiers with capacities ranging from 5 to more than 20,000 liters per hour. A liquefier is an open system which produces a liquid output and requires an equivalent quantity of feed gas as an input. The mass flow rates involved in the respective refrigeration process are asymmetric. Depending on the requirements and specific application, Hi-tech offers a range of standard and special systems for Gas Liquifiers

For universities and research institutes with a liquid Gas requirement of 5 to 300 l/h, For Commercial Applications standard liquefiers are provided with turbine & Piston expanders, performance ratings is achieved by using different compressors and operation with or without liquid nitrogen precooling (as per liquefier model selected). Integrated into the cold box is a freeze-out purifier to remove contaminants from the process gas. All standard systems are fitted with a Siemens S-7-300 automatic control and monitoring system. A PC system is offered for visualization and remote operation. The control system can be fitted with online access for supervisors

The main components of a helium liquefier are:

  • Oil-injection screw compressors
  • Vacuum-insulated cold box
  • Plate & Fin Type heat exchanger
  • Expansion turbines with dynamic gas bearing
  • liquid Gas storage tank
  • Control system

Further system components such as:

  • Raw gas compressors
  • Purification systems
  • Gas storage tanks
  • Helium recovery
  • Filling stations