Tank trucks play a crucial role in the storage and transportation of oil and gas. Tank trucks are often used for this purpose. When oil is needed, it is unloaded from the tanks. During this unloading process, the oil inevitably becomes viscous due to its low temperature, reducing its fluidity and preventing it from being unloaded smoothly. How can this problem be solved? A new local rapid heating technology for oil tanks has been reported to effectively address this issue.
Oil Tank Local Rapid Heater
Working Principle:
1. A vortex heat film heat exchanger is inserted radially into the bottom of the tank. The heat medium (steam) flows through the tubes, while the oil flows between the tubes in the shell-side. The shell-side oil intake is directly connected to the medium in the tank.
2. A temperature control valve is installed at the steam inlet of the heat exchanger. A temperature probe monitors the oil outlet temperature to control the steam flow rate, thereby ensuring a constant oil temperature. The heat exchanger utilizes high-efficiency vortex heat film tubes, ensuring optimal oil flow within the tubes. Its thermal efficiency is 3-5 times higher than that of conventional heat exchangers. The enhanced heat transfer mechanism is as follows: the oil fluid is designed to flow turbulently across the inner and outer surfaces, generating intense turbulence and flushing. The flow direction constantly changes, constantly replacing the high-temperature oil fluid adjacent to the tube wall. This weakens or even destroys the insulation layer, accelerates heat transfer across the metal surface, and strengthens microscopic vortexes within the fluid, enhancing internal heat diffusion within the oil. This prevents localized overheating of the fluid near the tube wall, ensuring adequate and sufficient heating without the risk of coking or decomposition. This provides excellent heat transfer without significant resistance.
Heating Features:
1. Fast heating speed, high heat transfer efficiency, and resistance to scaling.
2. Capable of quantitatively heating the oil, providing the required amount of heat.
3. Prevents localized overheating and carbonization of the oil, ensuring oil quality and heater heat transfer efficiency. 4. The oil outlet temperature is the highest within the tank, ensuring smooth flow of the poured oil.
5. Repeated heating of the oil within the tank is avoided, ensuring consistent oil color and reducing oil handling costs.
6. Long service life, corrosion resistance, high temperature resistance, high pressure resistance, and anti-fouling properties significantly enhance the overall performance of the heat exchanger.
7. Advanced process and structural design ensure smooth oil flow and effective tank bottom extraction.
8. Automated control is available, enabling the steam feed rate to be controlled based on the oil's inlet and outlet temperatures and the oil pouring flow rate.
9. Compact structure, easy installation and maintenance, with no impact on tank safety due to heater installation. Compared to U-tube heat exchangers, for the same heat transfer area, the eddy current heat film heat exchanger's dimensions are only approximately half of those of a U-tube heat exchanger.
10. Compared to electric heating, it is safer, provides gentler heating, and has less impact on oil quality.
