Structure of oil tank trucks
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As the requirements for the safe management of hazardous chemicals become increasingly stringent, our company has made improvements in the storage and transportation of oils, by implementing oil and gas recovery methods (based on absorption and adsorption principles)”； However, during use, in many vehicles the vent valves on the roof activate during the filling process. Additionally, some vehicles have exhaust ports for the gas lines on the roof, resulting in a strong odor of oil and gas in the loading area, which fails to achieve environmental protection goals ； I would like to ask which expert can provide information on the structure of oil tank trucks along with relevant explanations ； and effective management measures. O(∩_∩)O Thank you
The flexible hose seal is in good condition; the key issue lies in the fact that our oil and gas recovery unit does not have a fan. The pressure generated by the evaporation of oil and gas during loading pushes the gas into the adsorption tank. If the pressure in the adsorption tank exceeds the pressure of the tank truck’s breather valve, then the breather valve will open
The design pressure of tank trucks can generally reach 4 bar. Why is a breather valve used instead of a safety valve?
I’m not familiar with the design specifications for tank trucks; transport vehicles for gasoline and diesel both come equipped with breather valves
Our unit’s oil and gas recovery system is equipped with fans. A slight negative pressure is created through the vapor line, so that the roof vent valve does not activate.
http://www.chinabaike.com/z/qiche/2012/0327/1092116.html Nowadays, oil depots are mostly converted to bottom-loading type.