Is there any specification stating that a high-level tank must be equipped with an on-site level gauge?
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Can remote weight transmission replace on-site level gauges? Or are there any specifications requiring that on-site level gauges must be installed for elevated tanks?
There seems to be no standard requirement specifying that an on-site level gauge must be installed; it depends on the designers’ judgment. Generally, for those parameters of the equipment that are related to operational safety, I will consider including an on-site instrument so that operators can monitor the internal parameters of the equipment at any time while performing maintenance or operations on it. To prevent fluctuations in on-site parameters; if the DCS operators fail to be notified in time, it could lead to safety accidents. Another advantage of using an on-site instrument is that it can be used for mutual verification with remote instruments. Setting up two remote transmitters is too costly; having one remote transmitter and one local transmitter allows for mutual verification, facilitates on-site operation, and keeps costs low.
Hello, I would like to ask again: since the viscosity of the material in question is high, it’s difficult to choose an appropriate level gauge. Could weight be used as a substitute for a traditional level gauge?
It depends on what medium is used in the high-level tank; if it’s not dangerous, it may not be necessary to use it on-site.
If the viscosity is high, a radar level gauge can be installed!
A high-level tank is equipped with a high-liquid-level overflow mechanism; a level gauge is not necessary as long as the capacity of the overflow pipe meets the requirements.
GB17681-1999, 5.5: “Liquid storage tanks must be equipped with level detection instruments; at least two different types of level detection instruments shall be installed in the same tank.” ”It does not explicitly state that a on-site level gauge is necessary.
On-site level gauges should be installed to prevent safety accidents in the event of problems with automatically controlled level gauges (such as power outages or changes in parameters).
If the sump is used as a safety measure to reduce system safety risks (such as quenching solvents or emergency neutralizing alkalis), or if it contains hazardous chemicals that are subject to strict regulation, then level monitoring instruments and other such devices must be installed in accordance with relevant requirements.
A long time ago, there were no level gauges; we used overflow pipes for control