Ultra-low Temperature Tuna Longliner
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The price of tuna is directly related with the freshness, to which the refrigeration system plays an essential role. The conventional temperature for tuna blast freezing is -60℃, the one of tuna cold storage is -55℃.
Traditionally, owners of tuna longliners used piston compressor in the refrigeration solution, which demands experienced operators,easily resulting in bad quality.
With experience in ultra-low temperature and tuna industry, combined MYCOM (Japan) single double-stage screw compressor with domestic auxiliary equipment, Chonson Beyond can offer refrigeration solution with easy and reliable operation, decreasing the labor.
- Compressor:single double-stage screw compressor from Japanese MYCOM;
- Auxiliary equipment (pressure vessel): from domestic top brands;
- Blast freezing shelf: alloy evaporation plates are manufactured based on Japanese mould, which has a high heat transfer coefficient;
- Evaporating coil: is made of 09MnNiD, special material for ultra-low temperature application;
- Ultra-low temperature special thermal expansion valve: from Japanese Sagi Palace;
- Refrigerants: R404A and R507A;
- Pre-assembly: assembly of pipes and cables in the factory, reducing on-site workload;
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Unit structure: with a compact structure, the unit is space-saving and easy maintenance.
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Reference
Ultra-low temperature tuna longliner: a serial of 6 vesselsVessel owner: Guangzhou Pelagic Fishing Company
Length: 41.9m
beam: 7.2m
Draught: 3.00m
Main engine: 600.00kw
IMO for 6 vessels: 9873228; 9873230; 9873242; 9917270; 9917282; 9917294
Refrigeration solution: MYCOM ultra-low temperature single double-stage screw compressor units*3 with refrigerant R404A; freezing shelf for blast freezing and coils for cold storage.
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