01, 18--What causes oil tank roof collapse accidents?

This post was last edited by chengkang on 2010-2-15 09:00. Reference answer: (1) The tanks were not transferred in time. (2) The pump was stopped at the intermediate station, and the pressure bypass procedure was not initiated in a timely manner. (3) Failure to promptly monitor changes in the oil inflow volume. (4) The heating temperature of the oil tank is too high. This causes the water accumulated at the bottom of the tank to boil violently. (5) Level gauge failure. (1) Stop oil inflow to the tank and immediately transfer the oil. (2) Require a reduction in output at the upstream station, and an increase in output at this station to accelerate external transportation. (3) If the station is unable to increase the volume or transfer the liquid, the pressure is transferred to the next station or through a closed-loop process. (4) Stop heating the tank and lower the temperature. (5] Inspect the level gauge and strengthen manual measurements.

This post was last edited by chengkang on 2010-2-15 09:00. High temperatures in summer cause the oil to expand； The level transmitter malfunctioned, resulting in incorrect operations.

This post was last edited by chengkang on 2010-2-15 09:01 (1). Changes in friction force lead to changes in the amount of air supplied. As the pressure increases and the tank rises gradually, the friction between the floating plate and the plate to be placed on top undergoes significant changes, which in turn causes variations in the amount of air supplied. However, when actually operating the fan, it is difficult to control these changes in air volume; especially when H is close to a certain value, poor control over these volume changes can easily result in roof collapse. (2) Changes in the center of gravity of the tank cause misalignment at the top layers of plates, leading to roof collapse. Solutions: 1. Strictly control wind pressure; 2. Ensure a steady and gradual rise or fall in the liquid level of the oil tank

This post was last edited by chengkang on 2010-2-15 09:01. Reason for roof collapse: (1) Changes in friction force lead to changes in the amount of air supplied. As the pressure inside the tank increases, the friction between the floating plate and the plate that needs to be placed there undergoes significant changes (as shown in Figure 1); accordingly, the amount of air supplied also changes. However, in practice, it is difficult to control this change in air volume. Especially when H is close to a certain value, if the change in air volume is not properly managed, roof collapse can occur. (2) Changes in the center of gravity displacement of the tank

This post was last edited by chengkang on 2010-2-15 09:01 (1) Tank transfer was not carried out in a timely manner. (2) The pump was stopped at the intermediate station, and the pressure bypass procedure was not initiated in a timely manner. (3) Failure to promptly monitor changes in the oil inflow volume. (4) The heating temperature of the oil tank is too high. This causes the water accumulated at the bottom of the tank to boil violently. (5) Level gauge failure. (1) Stop oil inflow to the tank and immediately transfer the oil. (2) Require a reduction in output at the upstream station, and an increase in output at this station to accelerate external transportation. (3) If the station is unable to increase the volume or transfer the liquid, the pressure is transferred to the next station or through a closed-loop process. (4) Stop heating the tank and lower the temperature. (5] Inspect the level gauge and strengthen manual measurements.

This post was last edited by chengkang on 2010-2-15 09:02 (1) Tank transfer was not carried out in a timely manner. (2) The pump was stopped at the intermediate station, and the pressure bypass procedure was not initiated in a timely manner. (3) Failure to promptly monitor changes in the oil inflow volume. (4) The heating temperature of the oil tank is too high. This causes the water accumulated at the bottom of the tank to boil violently. (5) Level gauge failure. (1) Stop oil inflow to the tank and immediately transfer the oil. (2) Require a reduction in output at the upstream station, and an increase in output at this station to accelerate external transportation. (3) If the station is unable to increase the volume or transfer the liquid, the pressure is transferred to the next station or through a closed-loop process. (4) Stop heating the tank and lower the temperature. (5] Inspect the level gauge and strengthen manual measurements.

This post was last edited by chengkang on 2010-2-15 09:02: Poor drainage, excessive pressure

When changing the tank, the flow direction was not checked properly, which caused another tank to overflow. When changing the process, it is necessary to clarify the flow direction.