| Compared with original operating parameters of turbine,change of vacuuminfluences unit's thermo-economy more greatly. There are many factors thatinfluence vacuum,working characteristic and state of each components of vacuumsystem restricts the other. Test and operating instances show that heat consumptionis bigger than design value,vacuum degree being low is a major reason. Analysingdesign and running way,we find the questions in working water system of water-jetair ejectors,aspirating air pipe system and cooling water system,put forward thesystem optimization schemes of supplying cooling water supplement first towater-jet air ejectors,installing cooler on aspirating air pipe and connection pipebetween cooling water systems of two units,and calculating the thermo-economy,the result shows that the schemes are feasible and their thermo-economy proceed isobvious. |
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