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150、How to discharge the storage tank safely

Classification:Industry PublishTime:2020-07-14 14:44:48

How to discharge the storage tank safely


Inner tank safety pipeline: the storage tank shall be equipped with perfect safety system. In addition to manual venting and automatic venting valve for automatic control of inner tank pressure, two sets of breathing valves should also be set and switched through three-way valve. When the inner groove pressure reaches 24kpa,


Breathing valve exhalation: when the inner groove pressure drops to - 0.5kpa, the breathing valve inhales. When working, one set of two breathing valves must be opened to avoid equipment damage and personal injury. Suction only works as a last resort. Under normal circumstances, the top air pressure is too low, so long as the air is replenished through the self pressurization system.


The pipes leading out from the top of the inner tank adopt stainless steel corrugated compensator for temperature difference stress compensation, and the corrugated pipe is set on the outer tank.


External tank safety pipeline: external tank emergency relief device (diameter: DN250) and external tank breathing valve (diameter: DN 150) shall be set at the top of the external tank to ensure the interlayer pressure within a certain range and the safety of the equipment.



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