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 Posted: Tue 19:54, 14 Dec 2010 Post subject: air jordan shoes cheap Refrigeration system energy |
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Refrigeration system energy efficiency and energy consumption
Decline in the number, volume efficiency and result in reduced cooling efficiency and power consumption increase. Therefore, we must take measures to prevent non-condensable gases penetrated the system and the non-condensable gas emissions in time to facilitate the safe and economic operation system. Nine, the system of oil discharged from the compressor lubricant Although most of the oil separator can be separated off, but some lines into the condenser and other systems, the condensation in the wall or falling Man prepared the bottom of the normal operation of the refrigeration system its population harm. For example, the oil attached to the condenser and cooling discharge pipe, so that the deterioration of heat transfer equipment heat transfer coefficient decreased, condensation pressure increases. Evaporation pressure drops, the unit consumption of power increases. According to calculations, the condenser if the reservoir attached to 0.1mm. Evaporation temperature will reduce the 2.5 ~ C. Compressor cooling capacity by 16%, electricity consumption increased by 12%. Second, the oil gathered in the equipment and piping, so that the work volume reduction, because of oil, revolves degree, experience of stolen goods, and mechanical impurities mixed into the jelly sets, which accumulate in the cross section of glial smaller pipe or valve it is also easily cause clogging. Disorder caused by cooling conditions: So. In order to reduce the oil into the system, in addition to setting the oil separator with good performance, but also according to the compressor fuel consumption. Achieve a planned release of oil from the equipment on a regular basis, and make fuel and oil discharge statistics. If you find that the compressor oil increased, while adding less than the amount of oil released, the reasons should be examined to increase the number of discharge of oil, to prevent too much oil into the system. Once the condensation and evaporation system, the presence of oil would have to take decisive measures to eliminate, if necessary, in the production of light \6Mpa blowing compressed air method of death excluding oil low pressure system in the ten, defrost when the cooling fan coil surface temperature is below the dew point of air, food and precipitation of moisture in the air will condense on the wall, and if the wall temperature lower than 0 ℃,[link widoczny dla zalogowanych], frost will be cemented. Therefore, freezing rooms,[link widoczny dla zalogowanych], refrigerated warehouses, etc. The row between the tube surface after a period of time at work, will be covered by frost. Thermal conductivity of frost layer 80 times smaller than the steel. Therefore, the presence of frost will significantly affect the discharge tube cooling heat transfer coefficient. For finned tube, the cream layer was more obvious, it not only increases the thermal resistance, but also reduce the finned tube heat transfer area, blocked the flow of air between the fins, tube side heat transfer coefficient decreases according to the test, When the temperature difference between both sides of the cooling pipe group / \Frost layer and the heat transfer oil as the conditions are deteriorating, reduce the cooling efficiency, power consumption increases. Therefore, we must make timely discharge tube defrost work. XI, freeze-thaw cycle and the \For example, lack of management and maintenance of cold storage, some common sense, sometimes in the production of off-season to stop the freezing cold after cold storage opens doors for cooling, so that storage temperature rose to room temperature, resulting in freezing and thawing, thus undermining the robustness of database structure, so that Plastering database off the cement walls, the ground frozen cakes,[link widoczny dla zalogowanych], heat trap performance degradation, thermal insulation materials (rice hulls, perlite, soft wood, glass fiber, etc.) severe damp, causing the Treasury to resume production when the temperature is difficult and insulation performance. Required to stop using low-temperature warehouse, the storage temperature should remain at -5 ℃ below freezing and thawing to prevent the library body. In addition, some of the top cold hanging point, Qiang Zhu, floors, pipes and other parts of brackets and hangers generated due to improper handling \the storage temperature is difficult to meet the design requirements, the Treasury extended the heat load, but also cause damage to the database structure, but also the storage temperature is difficult to meet the design requirements, extending the refrigerator running time, wasted energy. XII Conclusion In summary, the refrigeration system must pay attention to the management and maintenance of refrigeration system operation, selection of refrigeration equipment, refrigerator repair, cold storage and freezing between management and cooling system to add water and debris Clear,[link widoczny dla zalogowanych], non-condensable gas system, excluding, defrost, freeze-thaw cycle and the \Ling system which can be seen that energy conservation and management of the system is very important, not only directly affects the economic efficiency of enterprises, but also related to the safe operation of refrigeration system,[link widoczny dla zalogowanych], must arouse the attention of enterprises. References: 1, Guoqing Tang Practical Refrigeration Design Manual China Building Industry Press, 19942. China Architecture Design Institute of civil heating, ventilation technical measures China Building Industry Press, 1983. l9 ~
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