debugging unit
6.The business scope includes: coarse efficiency particulate air filter, medium efficiency particulate air filter, high efficiency particulate air filter, HEPA(high efficiency particulate air filter) unit, air shower, pass box, clean bench, the laminar covers and other kinds of air purification product; and carry on clean workshop design, installment, debugging and examination.
7.Unit 2 of Huaneng Nanjing Power Plant,a supercritical pressure 320 MW steam turbine,carried out a retrofit for its turbine governing system. It was converted to the system without control actuating medium by using the force-driven mechanism. The paper briefed the process of retrofitting,the debugging and the effect after the retrofitting.

