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Food cold processing technology in supermarket refrigerated showcase (1)

supermarket refrigerated showcase food cold processing technology 1. The food cooling methods in supermarket refrigerated showcase are commonly used in the following ways: cold water cooling, vacuum cooling, and cold cooling. According to different types of food and cooling requirements, different cooling methods are used. 1. Cold air cooling: refers to the use of a refrigerator to red...

commercial refrigerationTIME：2016-08-22
Freon in commercial refrigeration

Freon in commercial refrigeration Freon refrigerant in commercial refrigeration has the following commonality. ①Non-toxic, good thermal and chemical stability, and can adapt to different cooling temperature and cooling capacity requirements. ②The molecular weight is large, the specific gravity is large, and the heat transfer performance is poor. ③The adiabatic index i...

walk-in display coolersTIME：2016-08-22
Food cold processing technology in commercial refrigeration (2)

commercial refrigeration food cold processing technology In commercial refrigeration, the method of freezing bulk or packaged food in direct contact with low-temperature media or ultra-low temperature refrigerants is called direct Contact freezing method, referred to as direct freezing. The refrigerating medium commonly used in direct contact junction method is called antifreeze. Since the ...

display freezerTIME：2016-08-22
The refrigerant Freon in the display cases (2)

The refrigerant Freon in the display cases The substitutes for R12 in the display cases are R134a, R152a and R600a. R12 is the first refrigerant that appeared, used in large quantities, and has excellent performance, but it is not accepted by the environment now. The current substitutes for R12 are R134a and R600a, and possible substitutes are R152a. The ODP of R134a is O, GWP is 1430, the s...

walk-in display coolersTIME：2016-08-22
Food cold processing technology in display cases (3)

display cases cold food processing technology in food The thawing of frozen food in display cases can be seen from the state of the presence of food moisture, of which about 15% of the total water content (referring to animal muscle tissue fiber cells) ) Is outside the tissue cells. This part of the water freezes first when the food is frozen, and at the same time the water in the cells gra...

commercial refrigerationTIME：2016-08-22
The high-temperature refrigerant in the display cooler

the high-temperature refrigerant in the display cooler The safety level Al has a life span of 1 to 4 years in dog air. It is a transitional substitute. The allowable time limit is 2020 and production will be stopped in 2030. R123 has a relative mass molecular weight of 153 and a standard boiling point of 27,6°C. Because of its thermal properties are very close to Rll, and its environmental haz...

walk-in display coolersTIME：2016-08-22
The electrolysis in the supermarket refrigerated showcase

the electrolysis in the supermarket refrigerated showcase The electrolysis in the supermarket refrigerated showcase can be divided into two parts: (1) low-frequency current defrosting. When current passes through the nickel-chromium wire, the nickel-chromium wire generates heat due to its high resistance. According to this principle, electric current is passed through the frozen food, and el...

display freezerTIME：2016-08-22
The second refrigerant in the display cooler (2)

The second refrigerant in the display cooler inorganic salt aqueous solution The inorganic salt aqueous solution in the display cooler has a low freezing temperature, which is suitable for cooling in medium and low temperature refrigeration devices. The most widely used is calcium chloride (CaCl2) aqueous solution, as well as sodium chloride (NaCl) and magnesium chloride (MgCI2) aqueous solu...

commercial refrigerationTIME：2016-08-22
The second refrigerant in commercial refrigeration (1)

The second refrigerant in commercial refrigeration commercial refrigeration In the vapor compression or absorption refrigeration system, the evaporator is a cold output device, and the evaporator can be installed when used In a cold place, directly cool the object to be cooled. However, if the object to be cooled is far away from the evaporator, or it is not convenient to install the evaporato...

commercial refrigerationTIME：2016-08-22
Vacuum thawing food in supermarket refrigerated showcase

Vacuum thawing food in supermarket refrigerated showcase (1) The principle of vacuum thawing in supermarket refrigerated showcase. In the vacuum thawing room, the water in the water tank in the thawing room is boiled and vaporized at low pressure and low temperature by using a heat source. The low-temperature water vapor exchanges heat with the frozen food. The water vapor condenses on the f...

display freezerTIME：2016-08-22

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