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refrigerated showcase small and medium display cases ammonia refrigeration system design example (2)

refrigerated showcase small and medium display cases ammonia refrigeration system design example (2) (3) display cases The cooling consumption of internal ventilation and air exchange. This display cases has no display cases that need to be ventilated, so there is no cold consumption for ventilation, so Q3=O. (4) Cold consumption for operating operations. ① No. 1 frozen storage room. Displ...

display freezerTIME：2016-08-22

refrigerated showcase supermarket refrigerated showcase explain the characteristics of food ingredients

refrigerated showcase supermarket refrigerated showcase explain the characteristics of food ingredients n9n , But can be divided into two categories according to its source: animal food and plant food. Animal foods include meat, fish, poultry, eggs, milk, etc., and plant foods include fruits and vegetables. Because animal foods and plant foods differ greatly in raw material characteristics...

display freezerTIME：2016-08-22

refrigerated showcase display cases Explain the characteristics of food ingredients (2)

refrigerated showcase display cases Explain the characteristics of food ingredients (2) 2. The colloidal nature of proteins Protein molecules are very large, and their relative molecular mass is thousands of small, tens of millions of large, forming a colloidal solution in water, most of the protein molecular surface has many hydrophilic groups (such as one SH, CO, etc.) , Attracting water...

commercial refrigerationTIME：2016-08-22

Walk-in cooler intercooler refrigeration error failure and analysis

walk-in cooler intercooler refrigeration error failure and analysis walk-in cooler intercooler secondary failure machine refrigeration error phenomenon: poor refrigeration, no shutdown, after the freezer compartment There is a layer of frost on the grid and the fan runs normally. Failure analysis: For indirect cooling walk-in cooler, although the refrigeration system and defrosting system ha...

display refrigeratorTIME：2016-08-22

Display cases Intercooler failure and analysis (2)

display cases Intercooler failure and analysis (2) display cases Intercooler secondary failure has poor cooling and fan does not turn. Trouble phenomenon: poor cooling, no shutdown, no fan operation. Fault analysis: There is a problem with the fan circuit, or the fan blades are stuck by frost due to non-defrosting (generally, the motor is burned out). Troubleshooting: Shut down for 24 hours an...

walk-in display coolersTIME：2016-08-22

Commercial refrigeration refrigeration but noisy repairs

commercial refrigeration refrigeration but noisy repairs commercial refrigeration refrigeration but noisy 1. Large compressor running noise phenomenon: the ratio of refrigeration, start-up and shutdown time is normal, but compressor n5 is normal Hum runs loudly. Failure analysis: Commercial refrigeration is caused by resonance due to uneven placement, and the compressor's own noise exceeds...

display refrigeratorTIME：2016-08-22

refrigerated showcase display cooler Explain the characteristics of food raw materials (3)

refrigerated showcase display cooler Explain the characteristics of food raw materials (3) Sugar In the display cooler, you should also refrigerate the quality of sugars, so you need to understand the quality of sugars. Carbohydrates are polyhydroxy aldehydes or polyhydroxy ketones composed of carbon, hydrogen, and oxygen. Most sugars contain the same ratio of hydrogen to oxygen as the rat...

walk-in display coolersTIME：2016-08-22

refrigerated showcase supermarket refrigerated showcase explains the characteristics of food ingredients (4)

refrigerated showcase supermarket refrigerated showcase explains the characteristics of food ingredients (4) lipids and enzymes lipids are also an important part of food refrigerated showcase. Any biological material that can be extracted with low-polarity solvents is called lipid. Lipids are divided into two categories: true lipids and lipids. true fat is a glyceride of various higher f...

walk-in display coolersTIME：2016-08-22

refrigerated showcase display cooler explains the characteristics of food ingredients (5)

refrigerated showcase display cooler explains the characteristics of food ingredients (5) ...

commercial refrigerationTIME：2016-08-22