闭式水系统调试作业指导书(英)(4)

英文版的闭式水系统调试作业指导书

grease. Independent equipment test running has been completed and checking and inspecting has been completed.

4.7 Chemical DM water system has finished trial run, and can supply DM water to closed cooling water system.

4.8 Water-water heat exchanger is checked to be out of leakage through pressure test.

4.9 The pipes of closed cooling water system have been flushed to be clear.

4.10

4.11

4.12

4.13 Expansion water tanks and filters are cleaned. Equipment and valves in DSC static commission to closed circulation cooling water system is The trial run site is cleared, the passage is unblocked, the illumination is Erection part takes charge of equipment erection and preparing manual system are hanged with nameplates. finished, operation requirement is met. sufficient, and communication is convenient. vibration instrument and temperature instrument.

5 Commission procedures

After erection part finishes independent trial run to closed circulation cooling

water pump motor and commission to MD valve and AD valve, commission part will carry out commission to closed circulation cooling water system (include interlock protection test, closed water pump trial run, system flushing, system operation and dynamic regulation, etc). during the process of system commission, the work is carried out coordinated with erection part.

6 Commission steps

6.1 Feed water to system and discharge air from system.

Makeup water source is provided by chemical water and feed water to

closed expansion water tank until full. When carry out water makeup, open inlet and outlet valves of closed water pump and feed water to whole closed circulation cooling water system. Open the air discharge valve in closed water pump and system pipe high level point. After feeding water to system is finished and air is discharged, close all air discharge valves.

Towards main consumers of closed circulation cooling water, as per the site

situation, feeding water or separating is adopted. But in order to avoid pump closed operating, keep one or two consumer of large flow at smooth state. The