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1. How to check for leaks in one half of the condenser? (1) Contact the shift supervisor to reduce the unit load to about 70% of the rated load (when the condensate hardness is too high, the load must be reduced further, and the second set of extraction systems should be activated). (2) Appropriately increase the steam supply pressure for the shaft seal. (3) Slightly increase the inlet valve of the circulating water for the condenser on the side that will not be inspected for leaks. (4) Close the air valve from the condenser on the leak-check side to the extractor. (5) Close the circulating water inlet valve and the connecting valve on the side used for leak detection, adjust the circulating water air valve; after these valves are closed, the switch handle must be moved to the manual position. (6) After confirming that the unit is operating normally, open the drain valve of the condenser on the side that is not in use. (7) The condenser vacuum must not be lower than 85 kPa, and the exhaust steam temperature should not exceed 70°C. (8) Open the manhole door on the deactivated side condenser to enter and check for leaks. (9) After checking for any omissions, the team leader shall verify that there is no one present and no tools left behind, and then close the condenser manway and drain valve. (10) Open or close the circulating water inlet valve on one side of the condenser, adjust the circulating water air valve and the circulating water connection valve, and set the circulating water inlet valve on the other side to the correct position. (11) Deactivate the condenser on one side until the air valve of the extraction pump is opened. (12) Use the same method to check for leaks in the other side condenser. (13) During the leak detection process, the vacuum level of the condenser should be no less than 87 KPa, and the trend should remain stable; otherwise, the cleaning of one half of the condenser should be stopped, and operation of the condenser on the side being cleaned should be resumed as soon as possible. 2. What precautions should be taken when filling the condenser with water to check for leaks? (1) A dedicated person should monitor the condenser for leaks, ensuring that the inlet and outlet valves of the condenser’s circulating water are closed and that the power is cut off with the area locked. (2) Before filling the condenser with water, it is necessary to check and ensure that the jacks at the bottom of the condenser are in place and securely supported, and that all water on the water side of the condenser’s circulating water system has been drained. (3) When checking for leaks in the condenser cooling water pipes, the metal temperature of both the high-pressure and medium-pressure cylinders should be below 300°C. When checking for leaks in the condenser cooling water pipes, water should be added until the pipes are completely submerged, and the manholes on the steam side and the water side should be opened. (4) During leak inspection, if pressurization is required, the pressure shall not exceed 50 Kpa; the maintenance personnel should seal the shaft seal at the turbine end, and the low-pressure cylinder’s atmospheric safety valve must be secured properly. When checking for air leaks on the steam side of the condenser, it should be noted that this can only be done when the metal temperature of the high and low pressure cylinders is below 200°C. (5) After water is introduced, monitoring of the temperature difference between the upper and lower cylinders should be intensified. After water leaks out from the steam side manhole, the steam side monitoring hole and the top vent valve should be opened, while the steam side manhole should be closed. After irrigation, operate in conjunction with maintenance personnel to check for leaks. After completing the leak check, drain water into the storage tank. Once it is confirmed that no people or tools remain, close the water-side manhole cover and the drain valve. After a thorough inspection, the device is placed in standby mode.