Description
CNP10 and CNP20 are liquid nitrogen plants with a production capacity of 10 and 20 lt/day, respectively. Both systems also have their labstation version for applications required only small volumes of liquid nitrogen (LN2) at a time. Both models arrive as a plug-and-liquify system with a built-in air compressor. A fully integrated design and one button operation allows you to place CNP series liquifiers in the research labs, IVF Centers or clean rooms. Simply, make the electrical connections and produce your own liquid nitrogen by a fully automated operation with a user friendly interface of its PLC controller. Operator only needs to replace the filters and perform routine checks between maintenance intervals of 10000 operating hours. Liquid nitrogen is produced from air and stored in an internal 50 lt dewar. LN2 is available when you need it. You can fill your dispensing thermos or transfer LN2 via a flexible hose to an external dewar with a simple turn on key. LN2 transfer is independent from the system’s operation mode. The PLC automatically re-starts when the level drops to 70%, then will stops the plant when the dewar is full and goes into standby mode until some liquid nitrogen is transferred. Atmospheric air is elevated to high pressure by a built-in oil free compressor and fed to a buffer tank. The high pressure air in the buffer tank is directed to the filter group behind the unit to remove water droplets and very small particles from the air, then an internal air dryer removes the remaining moisture in the gas phase. The treated dry and clean air with a dew point of -70°C flows to one of the adsorber beds of the Pressure Swing Adsorption (PSA) module. PSA technology can provide nitrogen at the right purity level for liquifier. The carbon molecular sieve in PSA beds adsorbs oxygen and carbon dioxide molecules and after the saturation of the bed, feed flow process valves switch to the second adsorption bed. The first adsorption bed is then depressurized rapidly and purged to remove adsorbed oxygen. By continuing the switching, from one bed to other one generates a constant flow of pure nitrogen gas. The purified nitrogen exposes through a nitrogen buffer tank to the cryocooler where is located in a vertical cryogenic storage tank. Features: • Easy installation, • Single switch operation, • LN2 transfer by one button, • Control all components through the diagnostic screen, • Fully automatic start and stop operation by PLC which supports efficient troubleshooting, • The monitor displays the operational status of the plant and the failures triggered by safety devices and sensors. • PLC controlled condensate drains on filters • Easy maintenance on filters MORE MODELS ARE AVAILABLE: CNLab 20 CNLab 30 CNLab 60
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