Compared to 2014, natural refrigerants for industrial solutions were more visible at China Refrigeration 2015 pointing towards an exciting year ahead for CO2 and ammonia.
On show at the booths of R744.com and ammonia21.com partners
At Danfoss’s booth entitled “Engineering Tomorrow” the latest control solutions for industrial refrigeration were showcased, including the ICF 15-4 valve station, suitable for both CO2 and ammonia, the STC stop valve, the EKE 347 liquid level controller for low/high pressure liquid level control and featuring an alarm function, the DSV double stop valve that provides perfect closing through a valve cone even with minimum torque, and the GD gas detector, applicable to NH3, CO2 and hydrocarbons, and featuring an interchangeable pre-calibrated board, liner analog outputs, current (mA)/voltage (V) proportional to gas concentration.
Parker, a company that has been manufacturing and distributing industrial refrigeration control valves for over 90 years, showcased control solutions applicable to various refrigerants include CO2 in industrial refrigeration.
Bitzer displayed the latest OSKA95103 open drive screw compressor for NH3 applications, with a displacement up to 1015 m3/h, infinite capacity control, automatic V-adaptation and enhanced operation monitoring. Also on show was the 4CTC-30K semi-hermetic reciprocating compressor for transcritical CO2, for high temperature and medium temperature applications.
At the GEA Refrigeration Technologies booth trade fair visitors could see the HGX12e/60-4 S CO2 compressor, rewarded with the title of ‘Innovation Product for China Refrigeration 2015’. The compressor has progressively adjustable speed control by means of an EFC (Electronic Frequency Control. Alongside the 12e model was the HGX46/280-4 S CO2 T, semi-hermetic six-cylinder reciprocating compressor with drive motor, single-section compressor housing, and hermetically integrated electric motor.
Güntner showcased their CO2 and ammonia condenser and heat exchanger solutions for industrial refrigeration and air conditioning, including the GVH Condenser Series and the thermolineVario plate heat exchanger, which has a capacity of 20 – 2,000 kW. With a compact design, the heat exchanger is can be individually configured for different refrigerants and applications.
Also at the show….
Yantai Moon featured their CO2 units including a subcritical CO2 parallel compressor and screw compressor unit. The company’s CO2/NH3 refrigeration systems have been widely used in industrial refrigeration systems throughout China, with more than 35 projects implemented already.
Fort the first time this year the Bingshan Group showed off their JZLGC11E11 CO2 unit, which features inverter technology and is applicable for CO2 or NH3 industrial refrigeration plants.
Snowman had a dedicated booth for natural refrigerant systems and components. On show as an NH3/CO2 secondary refrigeration package using SRM screw compressor and SVPWM inverter technology. For compressors, Snowman demonstrated their ammonia 6.3 MPa high pressure screw compressor, ammoniasemi-enclosed two-stage screw compressor with inverter, SRH-18M open-type high pressure screw compressor for CO2/NH3 cascade low temperature refrigeration and their SRC-S-353LOS R290 semi-hermetic screw compressor for R290.