2. Working principle

Mixed-refrigerant Joule-Thomson (MRJT) refrigerator at low temperature ranges driven by single compressor with precooling is applied to liquefy nitrogen (-180℃) for Nitrogen Liquefier from TIPC, CAS. MRJT, a Joule-Thomson cycle based on reoccupation and multicomponent mixed-refrigerants through optimizing various refrigerants with different boiling points with a good match along with their respective efficient refrigeration temperature ranges, is an efficient refrigerator for the temperature range from -40 to -196℃.

The feature of this product is as following: the available mature commercial compressors and heat exchanges, high liquefaction efficiency, high reliability, no maintenance and long life.

3. Application

a. fish boat,hotel and food processing plant: food quick-freezing,Beverage processing

b. hospital and beauty salon:Liquid nitrogen refrigerating apparatus,Vaccine preservation

c. laboratory: transducer calibration,Specimen preservation

d. farm: Embryo freezing instrument,freezing spermatozoon

4. After Sales Service Commitment
1. The nitrogen generator,1 year warranty, maintenance responding time is less than eight hours.
2. Ancillary equipment ,1 year warranty, maintance responding time is less than 8 hours.
3. Lifelong maintance service in a timely manner, the responding time is less than 8 hours.
4.Provide 24-hour hotline service.
5.Return visit every six months (callback or on the spot).
6.Supply accessories in a timely manner, the delivery time is generally 1-7 days.
7.Free repair at the expiry time of warranty

    Hangzhou Chenrui Air Separator Installation Manufacture CO., Ltd located in the city of Fuyang, Hangzhou. It’s one of the most intelligent air separator equipment manufactures with low energy consumption and high efficiency in China. We focus on providing the most advanced, reasonable and energy-saving air separation equipment in this industry.

    To comply with the market's demands, Chenrui always determines to pioneer, innovate and progress. It’s leading in many fields like Fully implements QES management system.,Achieved National Industrial Product Production License, State-level High-tech Enterprises Certification, 3 invention patents, 33 utility model patents and so on.

    Continuous technological innovation and upgrading, brings the value for the whole industry and society, which makes the air separator equipments more individual, intelligent and high-speed.

    Advanced production technology will surely achieve extraordinary products. Chenrui pioneered vacuum dust removal molecular sieve filling system, large shot blasting machine, automated welding process, efficient production process and excellent production environment let CHENRUI brand become the benchmark of air separation equipment manufacturing industry.

    In the era of information and globalization, Chenrui always insists on building long-term cooperation with design institutes and research institutes. Based on the actual needs, it can introduce all kinds of high-tech equipments and production technology.

As a supplier of air separator equipment system, we have 5 main products:

    1. PSA oxygen generator

    2. PSA nitrogen generator

    3. VPSA oxygen generator

    4. Cryogenic air separator plant

    5. Small liquid nitrogen generator

    Our generators are widely used in petrochemical industry, the electronics industry, textile industry, pharmaceutical industry, food and beverage industry, medical cosmetology industry, animal husbandry and so on.

Sincerely hope to promote, by joint our efforts, both trade and friendship to our mutual advantage.