Views: 0 Author: Site Editor Publish Time: 2026-06-18 Origin: Site
Shell-and-tube heat exchangers for steam-heated heavy oil are specially designed for furnace preheating at boiler and burner sections. Widely deployed in thermal power plants, industrial oil-fired boilers and asphalt production plants, these units rely on saturated steam to raise heavy oil temperature and realize qualified fuel combustion.
Working Principle & Core Function
High-temperature steam flows inside heat transfer tubes while high-viscosity raw heavy fuel oil circulates across the shell side. Through continuous heat conduction, the equipment steadily heats heavy oil to a controlled temperature range of 105–120°C.
Temperature rise drastically cuts heavy oil viscosity. When preheated fuel flows through burner nozzles, it achieves fine atomization, enables full combustion and avoids incomplete burning, carbon deposition or black smoke emission.
Why Precise 105~120℃ Preheating Matters
Below target temperature: Heavy oil remains overly viscous, blocks nozzles and causes poor atomization
Excessively high temperature: Risk of oil cracking, coking inside pipeline and safety hazards
Optimized 105–120°C keeps ideal fluidity for smooth pumping and stable burner operation
Product Design Highlights
Anti-blocking shell-side flow path customized for high-viscosity heavy oil to avoid sludge buildup
Optional tube materials: carbon steel, stainless steel or copper alloy for high heat transfer efficiency
Detachable end covers for regular internal cleaning of oil dirt and coking deposits
Customizable heating area, nozzle size and connection flange to match boiler/burner rated flow
Strict hydrostatic and leakage testing to fit continuous 24h boiler workshop operation
Main Application Fields
Heavy oil-fired power plant boiler burner preheating system
Industrial production oil-fired furnace and boiler fuel preheating equipment
Asphalt processing plant heavy fuel heating & feeding system
Waste oil combustion boiler supporting preheating units
