HRZL pumps are essential equipment in the upstream, midstream and downstream stages of the oil and gas industry, providing power for the transportation of fluids such as natural gas and oil. Various types of pumps, such as centrifugal pumps and oil pumps, play an important role in all aspects of oil extraction, transportation, refining and storage. At the same time, pumps are also widely used in methanol injection, ethylene glycol pumping, chemical processing and other scenarios to efficiently transport chemicals. Different types of pumps have their own functions in the refining system and are indispensable in the fluid transportation and purification process.