Interlock for storage tank level setting
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The storage tanks in the plant are equipped with interlocks for high and low liquid levels. It makes sense to have an interlock for high liquid levels to prevent overfilling, but I’m not sure why there is also an interlock for low liquid levels; the set point for this interlock is a liquid level of 2 meters below the normal level. Is it really necessary to have an interlock for low liquid levels as well?
Computer control systems can perform the following functions in terms of interlocking for tank level setting: 1. Based on changes in the tank’s liquid level, it automatically calculates the required level increase and outputs this as a control signal； 2. The system can detect deviations in the liquid level and automatically correct them to keep it within the set range ； 3. It is possible to monitor changes in liquid level in real time, triggering alerts promptly to remind operators to adjust the liquid level ； 4. Remote monitoring is possible, allowing the liquid level to be transmitted to the control center via the network. -
The low liquid level interlock prevents pumping when the liquid level at the front of the water pump is depleted.
The fourth floor is the correct choice; it prevents the internal floating roof from hitting the ground, and this is now a required safety measure