When the pump stop signal is received, it is ready to stop the pump. The first step is to turn the decoking control valve back to the return flow position. When the three position valve return light on the main panel is on, the pump stop button can be pressed. After the high-pressure water pump stops running, the lubricating oil system can be stopped when the temperature of each bearing is close to the room temperature, and the low pressure of the lubricating oil main pipe can be cut off to automatically start the pump interlock Next, switch the auxiliary oil pump field switch from automatic mode to manual mode, stop using the main oil pump, close the inlet and outlet valves of the lubricating oil cooler, and stop using the cooling water system; turn off the main power switch, and immediately turn the pump for 3-6 turns after it stops running, so as to clean the pump and its surroundings, and prepare for the next pump start. In addition, it should be noted that if the pump stop button fails, it is necessary to establish contact with the tower top driller, start the emergency pump stop button to stop the pump, close the seal flushing water, inform the external operator, stop using the coke cut water lift pump, and drain the remaining water in the coke cut water tank; in winter, the temperature is very low, after the pump is stopped, the outlet and inlet water lines and the water in the pump should be drained, and the non purified air should be used Blow dry to avoid freezing and interfere with the next operation.
