This paper dis-cusses its application in heating network operation, works out the experiential formula about relation between average air temperature and lowest air temperature per day.

• 论述了质调节在热网运行中的应用情况,建立了日平均气温与日最低气温的经验公式,根据日最低气温进行热网质调节,既保证供热效果,又节约能源。