Liquid Helium Plants and Helium Recovery Systems

Liquid Helium Plantsclick to enlarge

Do any of these statements apply to you?

  • I want to take control of my liquid helium supply.
  • I have received notice of change in availability and price from my liquid helium supplier.
  • I have multiple cryostats in my lab that require liquid helium for proper operation.
  • I want a solution designed around my needs.

Don’t be without helium. Don’t let your liquid helium supplier control your experiments.

Cryomech Liquid Helium Plants allow the user to liquefy helium from any room temperature source. Now laboratories can manage their own liquid helium consumption and conservation. With a Cryomech Helium Recovery System, facilities with several cryostats with different boil-off rates can use one Liquid Helium Plant.

View Helium Recovery Systems

Quick Facts about Cryomech Liquid Helium Plants:

  • Available liquefaction rates:
    • 6, 15, 22, 40, and 60 liters per day (see chart below)
  • Powered by a Cryomech Pulse Tube Crycooler, designed with high reliability with long mean times between maintenance
  • In operation all over the world
  • Operate 24 hours a day, seven days a week reliably, automatically and safely
  • Multiple recovery capacities available (for use with the Cryomech Helium Recovery System)

All Cryomech Liquid Helium Plants Include the Following:

  • Digital touch screen user interface that includes:
    • Remote monitoring and control
    • Digital level indicator
    • System diagnostics
  • Rugged, stainless steel, liquid helium Dewar
  • Cryogenically insulated extraction line and valve for low loss liquid helium transfer
  • Automatic level indicator initiates standby mode when Dewar is full
  • Warranty of three years or 12,000 hours on parts and materials
  • Pressure relief and safety valves
  • Design increases reliability by not including JT valves, which are common in other liquefaction products

 

 

Liquid Helium Plants offered by Cryomech
LHeP6
  • Produce ≥ 6 liters/day
  • 60L Dewar
  • PT407 Cryorefrigerator
LHeP15
  • Produce ≥ 15 liters/day
  • 60L Dewar
  • PT410 Cryorefrigerator
LHeP22
  • Produce ≥ 22 liters/day
  • 150L Dewar
  • PT415 Cryorefrigerator
LHeP40
  • Produce ≥ 40 liters/day
  • 350L Dewar
  • PT415 (2) Cryorefrigerators
LHeP60
  • Produce ≥ 60 liters/day
  • 500L Dewar
  • PT415 (3) Cryorefrigerators

Helium Recovery Systems

Cryomech Helium Recovery Systems Include the Following Components:

  • Atmospheric Helium Recovery Bag
  • Helium Recovery Compressor
  • Gas Cylinders
  • Automatic Purifier
Available Recovery Capacities offered by Cryomech
Medium Pressure Recovery
  • Recovery rate of 8.5 SCFM or ~20 liquid liters per hour
  • Med Pressure (400 PSIG) storage tanks that hold ~17 liquid liters
High Pressure Recovery
  • Recovery rate of 5.1 SCFM or ~10 liquid liters per hour
  • High Pressure (2400 PSIG) storage tanks that hold ~11 liquid liters

More Details on the Cryomech Helium Recovery System Components:

Atmospheric Helium Recovery Bag – The Recovery Bag is made of a durable vinyl-based polymer material. Laser positioning sensors automatically start the recovery compressor (described below) when the bag is full and stop the compressor when the bag is empty. Many users prefer Cryomech’s simple, effective design for atmospheric storage of helium gas in that it eliminates over-pressurizing their instruments, which may cause adverse effects including elevated LHe bath temperatures.

Recovery Compressor – The Medium Pressure Recovery Compressor compresses the helium gas stored in the Recovery Bag at atmosphere to a pressure of up to 400 PSIG (27.58 bar), while our High Pressure option reaches a pressure up to 2,400 PSIG (165.47 bar). Operation is fully automatic and the hermetically sealed system design allows for zero helium loss. The recovery rate of the Medium-Pressure Recovery Compressor is ~8.5 SCFM (~20 liquid liters per hour) and the recovery rate of the High-Pressure Recovery Compressor is ~5.1 SCFM (~10 liquid liters per hour).

Storage Cylinders and Manifold – The compressed helium gas exiting the Recovery Compressor at pressures of either 400 PSIG (27.58 bar) or 2,400 PSIG (29.3 bar) enters the Storage Cylinders through a stainless steel manifold. A pressure regulator is attached to the outlet of the manifold to regulate the helium flow to the Helium Purifier. Each Medium-Pressure Storage Cylinder can store ~17 liquid liters of helium, while the High-Pressure Storage Cylinder can store ~11 liquid liters of helium.

Automatic Purifier – Cryomech has developed an Automatic Helium Purifier to sell alongside its liquid nitrogen-cooled purifiers. Unlike the liquid nitrogen-cooled purifiers that require weekly liquid nitrogen refills and monthly trap regeneration, the Automatic Purifier runs indefinitely without any user intervention. Trap cooling is provided by a Cryomech GM Cryocooler and all equipment necessary for regeneration of the trap is included in the purifier. A PLC with 5-inch touch screen automatically determines when the trap needs to be regenerated and efficiently carries out the regeneration process. Total downtime for regeneration is limited to less than eight hours. The Automatic Purifier is fully compatible with all existing Cryomech Liquid Helium Plants.