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The refrigeration basics and refrigeration cycle

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1. The common refrigeration basics Major terms:  temperature, heat, specific heat, sensible heat, latent heat, pressure, evaporation, boiling, thermal conductivity, convective heat transfer coefficient, heat transfer coefficient, heat emission coefficient, density, humidity, enthalpy, entropy, and diagram of pressure enthalpy. For more check with our blog:  The Common knowledge of refrigeration basics and refrigeration cycle 2. The Refrigeration Cycle Refrigeration system fundamental components: The compressor The condenser The metering device The evaporator The receiver The refrigerant enters the  compressor  as a warm, saturated low-pressure gas, leaves the compressor as a superheated (hot) high-pressure gas, And then enters the  condenser  as a superheated (hot) high-pressure gas, leaves the condenser as a regular temperature, saturated high-pressure liquid, The refrigerant enters the   evaporator   as a cold, low-pressure liquid, leaves the ev...

During installation of split systems refrigeration equipment, how to ensure oil return efficiency?

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oil return efficiency   Compressor oil is very important for the crankshaft in refrigeration equipment. Under the serious disability of oil, the compressor could wear down within a few hours. 1.  Compressor oil is very important for the crankshaft.  Under the serious disability of oil, the compressor could wear down within a few hours. 2. So during the installation of a split system, we should  pay attention to the copper pipe. If the compressor is higher than the evaporator, the copper loop is a must. The suction line should be as short as possible, as little welding as possible, etc. 3. After all copper welding is done and during the machine commissioning, we should  calculate oil return speed. How many time does it start to return after the compressor start? We must guarantee oil return is on time, so the whole system could run in good condition during its service life.   For more, please feel free to contact us!

The seafood cold room how to keep fish frozen?

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Firstly, how seafood goes badly? At a certain temperature, the bacteria grow fast, and they will decompose the proteins, fats, and amino acids of the seafood, turns out, the seafood goes badly? And using a cold room to keep them, can maintenance at a temperature that stops the bacteria from growing. Just is like a seafood cold room, and there are several solutions 1. Blast freezing – we use the blast freezer room for fish 2. Keep fish at 0~-4C degrees. 3. Ice layer + fish layer. for more detail check: the seafood cold room to keep frozen For different kinds of seafood, the storage solution is different, for example, the deep-sea fish need to be stored at very low temperatures like -60C degrees. What kind of your seafood? Contact us for a cold room solution. For the seafood cold room design , you could check the article.

The cost of cold storage for garlic

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How much is the construction and installation of 500㎡ cold storage for garlic ? The cost of cold storage mainly depends on the three requirements of cold storage size, temperature requirements, and refrigeration unit requirements. The construction and installation costs of garlic cold storage mainly include the following points: 1.  Insulation cost of garlic cold storage:   The insulation board material is generally selected from polyurethane foam and double-sided color steel; the thickness used is generally determined by the temperature of the storage 2.  Garlic cold room equipment costs:   Garlic cold storage has many brands of refrigeration compressors, air coolers, refrigerants, expansion valves, etc., and suitable brands are recommended according to customer requirements and the budget of the cold storage; 3. Garlic cold storage circuit costs:   signal points, electric control boxes, sound and light alarm equipment, sensors, etc.; 4. Garlic cold storage pip...

How to build a big seafood cold storage? - from CRYO's insight

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Seafood Cold Storage Construction   The construction plan of the 10,000 square meters large seafood cold storage (aquatic product cold storage) cold storage is introduced in detail: Site selection: First of all, we must understand that you will build a large seafood cold storage of 10,000 square meters (aquatic product cold storage). The scale of the cold storage must be cautious. Close to the water source. It will not affect the surrounding people. It also needs a good environment, no factory pollution, etc. Design of large cold room for seafood: 10,000 square meters of large-scale seafood cold storage design a reasonable number of platforms according to your daily cargo tonnage to ensure smooth circulation of goods and design a certain parking area.  Selection of refrigeration equipment for large-scale cold storage for seafood : the size, temperature, and configuration of cold storage equipment will also differ depending on the type of refrigeration unit: Bitzer and Copeland...

The 4 main factors affecting the cost of cold storage

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There are 4 main factors that affect the cost of cold storage 1. The size of the cold room.   It depends on how many panels you need to use, how much horsepower the compressor has. 2. Cold room Panel.   There are different kinds of panels, EPS panel, PU panel, PIR panel, the quality is totally different. And the steel surface on the panel can be many like white color plate steel, stainless steel, so price different. 3. Within or without floor panel.   Some customers prefer no floor panel so it can save the cost of the floor panel, but it will increase the electric cost in the following 10 to 20 years. 4. The refrigeration unit.   For different brands of compressors, components and technology, the price of it is various much. And during the daily usage, the durability, the maintenance, the electric cost are also various. So it is hard to tell the price at the beginning, except for the above 4 factors, there are many details we need to consider when making the design o...

Different kinds of ice making machine in CRYO

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Different kinds of ice making machines: The ice machine is isolated into ice shapes: slurry ice machine , shell ice machine (also called cracked ice machine), tube ice machine , flake ice machine , block ice machine, and so on. For refrigeration methods, it can be divided into water cooled ice machines and air cooled ice machines. The difference between the three types of ice makers: The tube ice maker produces a relatively regular hollow cylindrical shape and is known in the industry as tube ice. The ice cubes are thick, transparent, beautiful, have a long storage period, are not easy to melt, and have good air permeability.  The temperature of flake ice is - 6℃~ - 12℃, which is generally appropriate for cooling in modern handling and transportation of short-lived things. It is normal utilized for fish shows on grocery store new food stands. Huge scope ice can likewise be utilized in concrete plants, synthetic plants, meat plants, marine fisheries, and so on. The cracked ...