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Showing posts from January, 2022

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.