What is the difference between freezers, reveal ark? _【 Hshelf shelf 】

A lot of friend said don't know what is the difference between freezers and reveal ark, freezers as the name suggests is actually the cabinet with functions of refrigerated, frozen, fresh, and reveal ark is has the display function of air-conditioner. Of course no refrigeration function counter is also called reveals ark, reveal ark but merchants say is belong to commercial freezers, is have refrigeration function. Refrigeration display cabinets refrigeration principle of refrigeration principle: first of all we know about the compressor compression after high temperature and high pressure gas, by the outside machine through the fan heat discharge, after high temperature and high pressure gas by cooling into a liquid at room temperature ( Outside the machine cooling bad, after cooling is still high temperature gas) After expansion valve and pressure relief, the liquid into the machine inside the evaporator heat absorption ( At this point, the air conditioning) , circulation within the machine of the fan will air transportation to the specified location, after the evaporation of low pressure low temperature gas back on compressor compression, so cycle. The major system of air-conditioner refrigeration show in addition to the refrigeration system and thermal insulation system, electronic control system, mechanical structure system. Heat preservation system outside the air circulation is cut off and contained in the ark, to prevent air leakage; Electronic control system is based on the required temperature to control the compressor operation or for liquid contained in the electromagnetic valve, the temperature did not reach the set temperature, the compressor work output cold source, the temperature reached will stop working. Saving energy and achieve the goods required temperature ( Too high or too low temperature of adverse to the storage of the goods) ; The rationality of the design of mechanical structure is the factory products, beautiful degree, human nature, the sum of applicability. Refrigeration display cabinets according to the temperature can be roughly classified as follows: single temperature freezers, such as refrigerators, freezer, such as 2 - 8 ℃ cold storage of fruit, vegetables, drinks cabinets, - 18 ℃ ice cream, frozen dumplings ark; Double temperature air-conditioner, such as lash ark, double temperature refrigerator reveals ark according to the product can be classified roughly as follows: ark of fruit, vegetables, cabinet, ark, cake cabinets, milk, cake cabinets, fresh cabinet, drinks cabinets, dumplings, ark of cooked foods, medicine cabinet. Restaurants of air-conditioner to roughly the following equipment: ice machine, refrigerator, workbench, red wine. Convenience of air-conditioner to roughly the following equipment: ice cream machine, juice machine, hot chocolate, drinks cabinets.