Inner tank safety pipeline: the storage tank needs to be equipped with a complete safety system. In addition to the manual venting and automatic venting valve for automatic control of the internal tank pressure, a double set of breathing valves must be set and switched for use through a three-way valve. When the inner tank pressure reaches 24KPa,

Breathing valve exhales: When the pressure of the inner tank 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. Inhalation works only as a last resort. Under normal conditions, the top air pressure is too low, just use the self-pressurizing system to supplement air.

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

Outer tank safety pipeline: The outer tank emergency relief device (DN250) and the outer tank breathing valve (DN150) must be installed on the top of the outer tank to ensure that the interlayer pressure is within a certain range and the equipment is safe.