Abstract: The main designed characteristics and structure parameters of the deep energy conservation equipment of #4 unit in a power plant in Shandong were introduced, and the commission and operation results were presented. The test results showed that putting this deep energy conservation equipment into operation would decrease the outlet gas temperature by 55～65℃, reduce the generation coal consumption rate by 4.2～4.5g/(kW·h), reduce water consumption by 155kt/year, and the annual economical benefit will be 3.40 million Yuan.

Key words: power plant boiler, deep energy conservation, outlet gas temperature, standard coal consumption rate〖HJ〗