Installation of on-site level gauges in storage tanks
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Our factory is under construction, but I’ve noticed that many storage tanks do not have on-site level indicators—magnetic flap level gauges—they only have remote transmission level gauges, namely radar level gauges. Is this setup appropriate? In my opinion, it results in a lack of a reference for the liquid level, making it easy to record incorrect levels, as many of these gauge types are quite inaccurate.
You’re absolutely right, but it’s not just the design aspect We design two sets for each application – one for on-site use and one for remote transmission, so as to allow for comparison.
In my opinion, automation is a tool to assist in management; the key still lies with the on-site managers! ! ! ! Otherwise, human initiative will not be able to improve and people will become increasingly passive! ? :handshake :victory:
What was said on the second and third floors makes sense; there should be on-site level gauges on the storage tanks.
We have only installed radar level gauges here. I asked an expert from the design team (an older colleague in his 60s): What should be done if there are problems with these level gauges? He said, \"You can measure it, right.\" It was a complete failure – a key project that required hundreds of millions in investment ended up becoming just another township enterprise.
If I understand correctly, the storage tank you are referring to is a vertical oil tank, which generally does not come equipped with an on-site level gauge.
It is recommended to set up two sets: one for on-site display and another for transmitting signals to the control room!
Generally, large vertical storage tanks are not equipped with on-site level gauges; and even if such gauges are present, it is difficult to read the level when it is high, resulting in large errors. On-site measurement is required only when necessary.
Personally, I think it’s better to have two sets, so there can be a comparison! Minor operational errors
The workload related to measuring lengths is too heavy; such a modern company seems a bit primitive. I’ve never really trusted gauges; the remote level measurements I’ve come across in the past were few and not accurate
Currently, on-site steel strip level gauges and remote radar level gauges are commonly used in oil tank areas. The remote radar level gauges are used as the basis for generating regular reports and other records, which helps to save labor and facilitates the gradual automation of these tank areas； The on-site steel strip level gauge is used during tank farm inspections to calibrate the level. When there is a large discrepancy between the two, the final reading shall be based on the manually measured liquid level.
GB17681—1999 Technical Requirements for Acceptance of Safety Monitoring and Early Warning Systems in Flammable and Explosive Tank Areas 5.5 Liquid storage tanks must be equipped with level detection instruments, and at least two different types of such instruments shall be installed in each tank. I’ve been to several tank areas; most of them are of one type, with on-site manual inspections
Radar level gauges still require calibration; however, a level gauge should be installed on-site
To ensure smooth production, it’s better to have two sets!
Radar level gauges are fairly accurate, but it ultimately comes down to personnel management; since it is a remote setup, staff need to go to the site regularly to check things.
Radar level gauges are now quite mature, especially those from foreign brands. If the storage tank is of great importance, it may be advisable to install two level gauges: one radar gauge and one servo-type level gauge. The servo-type level gauge can be equipped with an indicator placed at the bottom of the tank to facilitate inspections by operators. Of course, this requires a high investment; as an alternative, only one radar gauge can be used. One just arrived.