(Daily Question) Coal-to-oil and olefins forum, April 4, 2018
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3.jpg Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Question: (DMTO) Olefin separation unit: What should be done outdoors after an emergency shutdown of the propylene refrigeration compressor? (1) Confirm that the main steam valve, throttle valve, and extraction check valve are closed. Open the drain valves on the main steam valve, the boiler body, and the steam pipelines; open the valve leading to the silencer to an appropriate degree ； (2) Switch the dry gas seal from self-sealing to nitrogen sealing ； (3) The rewatering unit is connected to demineralized water to maintain the operation of the rewatering system ； (4) Stop the steam jet pump ； (5) Perform electric barring after the compressor stops running. Note: The answers will be released automatically in two days!
(1) Confirm that the main steam valve, throttle valve, and extraction check valve are closed. Open the drain valves on the main steam valve, the boiler body, and the steam pipelines; open the valve leading to the silencer to an appropriate degree ； (2) Switch the dry gas seal from self-sealing to nitrogen sealing ； (3) The rewatering unit is connected to demineralized water to maintain the operation of the rewatering system ； (4) Stop the steam jet pump ； (5) Perform electric barring after the compressor stops running.
Adjust oil temperature ； Electric barring after the compressor stops running ； Switch from dry gas seal to nitrogen seal ； Use demineralized water to maintain the rehydration system in operation.
1. Confirm that the main steam valve and the extraction check valve are closed. Open the drain valves on the main steam valve, the boiler body, and the steam pipelines, and slightly open the valves leading to the silencer. 2. Change the dry gas seal from a self-sealing type to a nitrogen-sealing type. 3. The rehydration unit is connected to brine water to maintain the operation of the rehydration system. 4. Stop the steam jet pump. 5. Perform electric barring after the compressor stops running. 6. Adjust the oil temperature to the specified value.
1. Confirm that the main steam valve and the extraction check valve are closed. Open the drain valves on the main steam valve, the boiler body, and the steam pipelines, and slightly open the valves leading to the silencer. 2. Change the dry gas seal from a self-sealing type to a nitrogen-sealing type. 3. The rehydration unit is connected to brine water to maintain the operation of the rehydration system. 4. Stop the steam jet pump. 5. Perform electric barring after the compressor stops running. 6. Adjust the oil temperature to the specified value.
(1) Confirm that the main steam valve, throttle valve, and extraction check valve are closed. Open the drain valves on the main steam valve, the boiler body, and the steam pipelines; open the valve leading to the silencer to an appropriate degree ； (2) Switch the dry gas seal from self-sealing to nitrogen sealing ； (3) The rewatering unit is connected to demineralized water to maintain the operation of the rewatering system ； (4) Stop the steam jet pump ； (5) Perform electric barring after the compressor stops running.
1. Confirm that the main steam valve and the extraction check valve are closed. Open the drain valves on the main steam valve, the boiler body, and the steam pipelines, and slightly open the valves leading to the silencer. 2. Change the dry gas seal from a self-sealing type to a nitrogen-sealing type. 3. The rehydration unit is connected to brine water to maintain the operation of the rehydration system. 4. Stop the steam ejector pump. 5. Perform electric barring after the compressor stops running. 6. Adjust the oil temperature to the specified value.
1. Confirm that the main steam valve and the extraction check valve are closed. Open the drain valves on the main steam valve, the boiler body, and the steam pipelines, and slightly open the valves leading to the silencer. 2. Change the dry gas seal from a self-sealing type to a nitrogen-sealing type. 3. The rehydration unit is connected to brine water to maintain the operation of the rehydration system. 4. Stop the steam jet pump. 5. Perform electric barring after the compressor stops running. 6. Adjust the oil temperature to the specified value.
Adjust oil temperature ； Electric barring after the compressor stops running ； Switch from dry gas seal to nitrogen seal ； Use demineralized water to maintain the rehydration system in operation.
1. Confirm that the main steam valve and the extraction check valve are closed. Open the drain valves on the main steam valve, the boiler body, and the steam pipelines, and slightly open the valves leading to the silencer. 2. Change the dry gas seal from a self-sealing type to a nitrogen-sealing type. 3. The rehydration unit is connected to brine water to maintain the operation of the rehydration system. 4. Stop the steam jet pump. 5. Perform electric barring after the compressor stops running. 6. Adjust the oil temperature to the specified value.
The system is set to release flares, with all sprinklers turned off; the suction volume of the first stage of the propylene refrigeration compressor is adjusted, and it is instructed that the methane refrigeration compressor be stopped or operated at no load