The utility model belongs to the technical field of
storage tank type blending oil, especially relates to a
storage tank unloading liquid collecting device, including vent
pipe, vent valve, liquid collecting
pipe, pump inlet pipeline, blowdown valve, blowdown
pipe, unloading pump, pump outlet pipeline, the
storage tank unloading liquid collecting device, the liquid collecting pipe is the core optimization component of storage tank unloading pipeline
system, and the blending oil component is stored by specific structure, and stable liquid buffer space is formed.When the tank car transports blending oil to the unloading pump, if the liquid level of the tank car drops to cause liquid supply fluctuation or pipeline flow instantaneous change, the oil component in the liquid collecting pipe can be supplemented to the pump inlet in time, the pump inlet pipeline in the traditional process is avoided to produce the evacuation problem due to insufficient liquid supply, the unloading pump is guaranteed to continue normal operation. This not only prevents the vulnerable parts of the pump body from being damaged due to
dry friction, reduces the
failure rate, but also reduces the demand for inspection and maintenance, reduces the frequency of spare parts replacement and labor cost, saves maintenance cost, improves the economy and reliability of the unloading process.