The cabinet industry

; At present, China telecom, China mobile and China unicom three carriers with 2 g, 3 g communications base station more than 670000, the consumption of base station power accounted for 85% of operators annual electricity consumption, of which more than 50% of electricity consumption by cooling equipment, lowering the base station is used for cooling energy consumption is the most critical link in the whole energy saving scheme. Need the main targets of cooling in the mobile base station is battery, UPS power supply, and communications equipment, heat not only to the equipment within the base station, however, in the summer, more heat in the base station is by the sun radiation and high temperature through the wall to produce, this part of the 68% of the total heat of summer, nearly 70% of the air conditioning refrigeration capacity is wasted, if the hair of the hot spots for direct cooling, need only some 30% of the amount of cold.

; Further analysis we found that different equipment requirement for working environment temperature is not the same. Battery under the condition of the temperature of 25 ℃, the longest service life can reach 10 ~ 15 years, the environment temperature rise every 10 ℃, the battery life will be cut in half. Communication main equipment work best ring temperature of 30 ℃ ~ 35 ℃, while UPS power supply, can be in 45 ℃ ~ 50 ℃ under the condition of normal work. Due to differences in equipment allowed working temperature range, the temperature control areas will further reduce the energy consumption of cooling equipment. If the equipment work in the region of the three different temperatures, and the scheme of cooling points directly to the cooling of hot can extend the service life and reliability of equipment, and can greatly reduce the energy consumption and operation and maintenance costs.