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                Water pump of central air conditioning is energy-saving

                来源: 作者:Stand originally 时间:2008-12-25 Tag: 点击:
                One, central air conditioning runs control method to analyse

                Design of system of central air conditioning is a basis above all cold bear of parameter of the atmosphere outdoor and computation of parameter of design of indoor air conditioning, press divisional structure characteristic, choose corresponding equipment according to trade catalogue, combination becomes a system. But time of majority of air conditioning system is the job below the circumstance in malcontent bear. The control means that works in malcontent bear is unreasonable, system can effect comparing can be reduced greatly. Air conditioning system is moving now adjust on means, geomantic system basically is valve (the hand is moved, automatic valve adjusts) , lead plane uses means of discharge carry on one's shoulder, and these means were to sacrifice obstruction specific power consumption will get used to extreme bear requirement, cause moving cost house not to fall high.
                If use frequency conversion control, deliver and carry link of energy to control to change water is measured (VWV) and change wind force (VAV) , make deliver and carry coupling and achieve displacement of optimal difference in temperature, the 30 ~ that its motivation controls a system for other only 60% , and energy-saving be double effect, because be opposite,the demand specific power consumption of refrigeration lead plane falls with nowadays. Lead plane uses frequency conversion energy-saving control, the physical quantity that holds the refrigeration agent campaign below design operating mode (wait like difference in temperature, pressure) change, energy-saving relatively pattern of other attune carry on one's shoulder is clear, overcome as agreed upon (YORK) aircrew of cold water of YT centrifugal type, aircrew of configuration frequency conversion falls in partial load can effect comes than can falling 0.2kw/ ton of refrigeration, means of control of visible frequency conversion applies foreground in air conditioning system very capacious.
                The past because the reason of the price, promotion of technology of frequency conversion of the application in system of centrally air conditioning is more difficult. It is very mature that the technology is controlled in automation of frequency conversion technology, computer today, with this technology and warm technical photograph combines an air conditioning major, it is not the technology of a high price, in small-power air conditioning its economy can support, in system of centrally air conditioning more not should debatable: (1) run time of central air conditioning is longer, energy-saving issue is more outstanding; (2) the cost proportion that frequency conversion control holds in whole system is not high; (3) the size of frequency conversion controller is larger, unit price of every kilowatt power is lower.
                It is feasible that system of central air conditioning uses transducer, its investment reclaims to be in commonly 6 ~ 12 months, with service life of frequency conversion controller 10 years plan, its are clean accrual is in above of 10 times investment.
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