Refrigerator energy performance main factors, the type of refrigerant choice, condenser and evaporator refrigerator compressor system of choice, cold storage size and layout, type and thickness of cold storage insulation, cold storage number of incoming and outgoing goods, cold storage thermal insulation of exterior doors, etc., to improve the efficiency of cold storage refrigeration energy savings are all factors that should be taken into account. Cold Storage ways to reduce energy consumption is usually divided into two parts: 1) reducing the cold cooling load, (2) cold storage equipment selection. First, the fruit and vegetable fruit and vegetable mini refrigerator cold energy refers consists of cold storage library board, refrigeration units, evaporator and other agricultural products in the assembly site installation become cold or cold or semi-assembled semi-civil civil cold storage, and the storage capacity is generally less than 200 Cube, the cold storage for preservation. According to the design temperature classification, fruit thinning mini cold temperature cold belong. Mini refrigerator in the cooling system, the Treasury, control systems and other components. Factors influence the consumption of fruits and vegetables cold storage and cold storage building envelope energy efficiency measures 1. Cold cold cold by running envelope and refrigerator unit of heat flux is proportional to the envelope. Therefore, should the refrigerator envelope in reducing heat flow indicators refrigerator unit and work hard. To reduce heat flow envelope units, one thermal conductivity of insulation material is smaller, and second envelope layer thicker. But the thickness is generally not too thick, otherwise there will be increase in construction costs and a waste of space and other issues. Therefore, to select a suitable insulation material in the thickness range. Under normal circumstances it requires small thermal conductivity of insulation materials, low water absorption, good low temperature performance, cost can not be too high. Cold storage insulation materials commonly used rice husk, polystyrene foam, polyurethane rigid foam and other cool. Convenient husk drawn, but resistance is small, easy to absorb moisture, and the large amount of time and labor to build the library body, in fact, the cost of conversion is not less than polystyrene; Styrofoam many manufacturers purchase take convenience, the thermal resistance large, affordable, easy to build cold storage installation; polyurethane rigid foams maximum thermal insulation performance the best, but the price is high. 2. Cold storage building envelope moisture and moisture vapor compartment separated steam measures taken cold storage building envelope is necessary, otherwise the insulation performance of insulation materials will deteriorate. This is when the body just started using cold storage insulation performance is good, but after a period of time with the reasons for the deterioration insulation effect. Since water vapor from the high temperature side to low side penetration, therefore, moisture vapor barrier should be located at the side of high temperature insulation. 3. Cold evaporation pressure and temperature of the evaporator temperature and the evaporation pressure is Correspondingly, knowing the evaporating pressure, evaporating temperature can be drawn through checking. Under certain conditions the temperature of the cold storage warehouse, the temperature difference (evaporation temperature and the temperature difference between the Treasury) reduce the evaporation temperature can be increased accordingly, refrigerator cooling capacity will be increased, that is, the cycle efficiency is improved, and accordingly also saves energy. 4. Refrigerator defrost operation Generally, when the resistance frost on the evaporator surface to air is not significant by the air flow before the evaporator has not yet decreased, affecting the frost layer is not serious, may not defrost; when the air When the flow was significantly reduced, it should defrost. Air humidity larger evaporator temperature and the temperature difference between the cold storage library, the more easily on the evaporator frost, combined with the preservation process, maximize the use of the packaging of frozen fruits and vegetables can reduce moisture loss, reducing the number of defrost the evaporator, actually also played a role in saving refrigerator. 5. Cold storage temperature and cold storage warehouse utilization of different fruits and vegetables stored at different temperatures, each of fruits and vegetables also are suitable for its storage temperature range. Without affecting the quality of fruits and vegetables, the energy-saving refrigerator should use a higher storage temperatures. Cold storage temperature is high, the evaporation temperature of the refrigeration system is also a corresponding increase, the cooling capacity will be increased, of course, the cycle efficiency is increased. Improve cold storage temperature is more important is that it can also reduce the transfer of heat out of the body through the library. Cold Storage warehouse utilization is the ratio of the volume of fruit and vegetable warehouse real account effective volume. Mini-refrigerator for capacity utilization is generally not less than 0.3, of course, not too high, otherwise appear difficult to cool. For the volume of fruits and vegetables to be stored varies greatly, it should separate into two or more cold cold room. Also to choose the right storage cycle, which saving for cold storage is self-evident. Second, frequency conversion technology for energy-saving cold cold cold storage business in view of the power consumption of 80% of the refrigeration system, the compressor and refrigeration system power consumption accounts for about 60%, so the significance of energy-saving compressor motor to match more as a major. Cold storage design, generally based on the year with a maximum mechanical load conditions determined with machines, in order to meet peak heat load requirement in the actual operation, however, because there are food cold, and other variables, often matching the design of the cold storage shorter compressor running at full capacity, long low-load running time, so most of the time the compressor is in operation less than the design load conditions, in our country, the prevalence of low refrigerator compressor motor load conditions. Third, the miniature energy-saving refrigerator refrigerator micro management model for China's current major agricultural production and rural household economy and technology, developed with simple operation and reliable performance, the effect of good storage facilities, has been patented and Eighth Chinese patent new technologies and products Expo Special Gold Award. It can be widely applied to fruits, vegetables, food, flowers and other agricultural products and medicines, food, chemical raw materials storage and pre-cooling, for urban and rural households and collective use, the regulation of seasonal fruits and vegetables, turning local resources for the economy an important carrier. Refrigeration equipment is the most critical part of Mini Cold Storage and Mini Cold mainly for rural families, wholesale markets, supermarket fresh chilled, frozen frozen.