【Learn Ethylene Together】Five questions per day to easily learn about ethylene 39
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【Learning Ethylene Together】Five questions per day to easily learn about ethylene: 39 fill-in-the-blank questions. 6. Cracking compressors generally have four or five stages; the purposes of this are ( ), ( ), ( ). Short Answer 1: Why is a vacuum created before starting a extraction-condensing turbo compressor? 2. Analyze the reasons for the decrease in lubricating oil pressure and the methods for dealing with it. Answer: Reasons: Solutions: 6. Cracking compressors generally have four or five stages; the purposes of this are ( ), ( ), ( ). Save compression power consumption, reduce the compression ratio, and lower the exhaust temperature. V. Short answers: Compressor: 1. Why is a vacuum created before starting a steam-driven condensing turbine compressor? Answer: A vacuum should be created before startup by removing the air from the exhaust chamber; otherwise, after the turbine starts operating, the inability of the air to condense will cause the exhaust temperature to rise and the pressure to increase, affecting the normal operation of the turbine. 2. Analyze the causes of reduced lubricating oil pressure and the methods for addressing it. Answer: Causes: 1. High temperature of the lubricating oil; 2. Fault in the lubricating oil control valve; 3. Clogged oil filter, resulting in an increased pressure difference. Solutions: 1. Adjust the amount of cooling water in the oil cooler and the steam used for heating the oil tank, so as to keep the oil discharge temperature between 42–45°C; 2. Contact the instrumentation team for repairs; 3. Replace the filter
#Here, fast pyrolysis compressors generally use four or five stages, with the aim of achieving a rapid recovery#
1. Reduce the exhaust temperature and compression ratio to save energy spent on compression. 2. Create a vacuum before starting up by removing the air from the exhaust chamber; otherwise, after the turbine starts operating, the inability of the air to condense will cause the exhaust temperature to rise and pressure to increase, affecting the proper operation of the turbine. 3. Causes: High lubricating oil temperature, malfunctioning lubricating oil control valves, clogged oil filters resulting in increased pressure differences, and low speed of the oil pump. Solutions: Adjust the amount of cooling water in the oil cooler and the steam used for heating the oil tank to keep the lubricating oil temperature between 38–42 degrees; contact the instrumentation staff for repairs, replace the filter, and adjust the speed