Energy Saving and Economical Analysis of Frequency Conversion Operation for Cooling Water Pumps in Underground Engineering Air Conditioning System

It is important for energy saving in air conditioning system to carry out energy saving operation of air conditioning water system. Moreover, it is also a useful measure of reducing maintenance management cost in air conditioning system. Rapid development of frequency conversion technology makes it possible to work reliably for variable water flow. Feasibility and energy saving theory of variable cooling water flow is analyzed, and control method of cooling water pump is discussed in this paper. In the end, this paper analyses energy saving and economy of frequency conversion operation for cooling water pump in an underground engineering air conditioning system.