Technical and News

Hot Oil Boiler Carbon Coking Cleaning

It is necessary and important if your thermal oil heater is used for too long or the selected thermal oil is not good or is used improperly, the coking and carbon deposits block the pipeline and the heating surface, which reduces the heat transfer efficiency and increases the energy consumption. The thermal oil boiler (heat medium furnace) is a boiler that uses organic heat medium oil as a heat transfer meson. It can obtain a higher operating temperature under a lower operating pressure. , Hot oil boiler become more and more widely used in Plastics, coatings, building materials and other industrial enterprises

1.Problems in the Operation of Thermal Oil Boiler

Heat-condensing oil is easily condensed by heat and cause carbon coking in the heat transfer area of the boiler Thermal oil is prone to thermal cracking and polymerization chemical reaction after being heated at high temperature, which deteriorates the oil quality. For example, the gelatinization of the heat transfer oil is thick, the residual carbon and the acid value exceed the standard, and the coke crystal precipitation deposits, etc., resulting in the formation of coking oil carbon scale in the boiler heat transfer area.
Coking and scaling in the heat transfer area increases energy consumption and causes fire accidents The accumulation of oil coke fouling on the heat transfer tube wall of the heat transfer oil boiler not only greatly reduces the heat transfer efficiency, increases the fuel cost, but also affects the downstream production process temperature. In severe cases, it causes local overheating of the heat transfer wall, cracks, corrosion, and tube explosion on the wall, causing leakage of heat transfer oil and causing major safety accidents such as fire and personal injury.

2. Thermal Conductive Oil Anti-coking and Anti-scaling Technology

Deterioration of oil quality accelerates boiler coking and coking. During the operation of the thermal oil boiler, the chemical composition of the thermal oil is prone to high temperature oxidation, cracking decomposition and thermal polycondensation and other chemical reactions due to heat, so that the oil is gelatinized. The coke particles generated by the polycondensation reaction greatly increase the residual carbon value of the heat transfer oil, forming coke oil carbon scale on the heat transfer surface.

3. Oil Carbon Scale Harms the Safe Operation of the Hot Oil Boiler

The oil carbon scale formed by the heat transfer oil coke not only greatly reduces the heat transfer efficiency of the heat transfer oil boiler, which greatly increases the energy consumption cost, but also can cause the high temperature corrosion of the heat transfer oil boiler metal and the corrosion damage under the scale, which can cause damage or cracking of the furnace tube metal. Corrosion holes, furnace tubes can be burned in severe cases, and major accidents such as fire and personal injury and death caused by leakage of heat transfer oil