Ball tank high liquid level alarm interlock
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I remember that a certain standard requires that storage tanks with a capacity of over 400 m3 be equipped with a high liquid level alarm system that triggers the automatic shutdown of the feed valve. Could someone please tell me which specific standard sets this 400 m3 requirement?
I haven’t heard that chain-type shut-off valves are required for tanks with a capacity of 400 cubic meters; according to regulations, such valves are needed for tanks with a capacity of 10,000 cubic meters.
Light hydrocarbon tanks of 3,000 cubic meters or more
As far as I understand, whenever it comes to pressure storage tanks, it is necessary to establish a requirement for an high liquid level alarm to trigger the automatic shutdown of the feed valve. This is clearly specified in the industry standard SH/T 3007-2014, in clause 6.3.4; it depends solely on the type of storage tank, not its size. In my understanding, the relevant operating procedures and safety measures are determined based on the properties of the material. Of course, whether to comply or not should be determined by referring to the scope of the specifications; it is not something that can be used as a reference. In my opinion, these specifications set very comprehensive and strict requirements. Experts conducting security reviews apply this standard. Additionally, you can keep an eye on the X-numbered document issued by the Safety Supervision Bureau at any time; some of the requirements in it are quite unique. .
Clause 6.3.7 of AQ3036-2010