How to design the power of the tubular heater?

How to design the power of the tubular heater?

Customers often ask us such a question when buying tubular heaters: What power is suitable for electric tubular heaters? In fact, whether it is a cartridge heater or a flat flange tubular heater, the power is related to the size and heating medium. 

The tubular heater power can generally follow the following simple methods to design:

According to the working environment of the tubular heater, it is generally divided into dry heating and heating liquid.

1.For dry burning, we have to figure out whether there is fan circulation during dry burning. If there is fan circulation, the power of our tubular heater is generally set as: the total length of the heating zone of the electric tubular heater (unit: meter) and heating the ratio of the power of the tube is 1:1.5, that is, the tubular heater with a length of one meter, in the case of dry burning and fan circulation, the most suitable power is 1500W, if there is no fan circulation, the power of our tubular heater is generally set Set as: the ratio of the total length of the heating area of the electric tubular heater (unit: meter) to the power of the tubular heater is 1:1, that is, the tubular heater with a length of one meter will have the highest power in the case of dry burning and no fan circulation. It is suitable to achieve 1000W.

2.When heating liquid, we have to figure out whether it is heating water or heating oil (usually for liquid heating, we use stainless steel electric tubular heaters). Generally, when heating water, the power of the electric tubular heater is set as: under normal circumstances, the ratio of the total length of the heating area of the electric tubular heater (unit: meter) to the power of the electric tubular heater is 1:2, that is, the electric tubular heater with a length of one meter. The power is suitable to achieve 2000W, of course, in the case of boiling water, the maximum can be 4000W; of course, the lower the power per meter, the longer the life .If it is oil heating, the electric tubular heater The power setting is: the relationship between the total length of the heating area of the electric tubular heater and the maximum power of the electric tubular heater is 1:2.5, that is, the electric tubular heater with a length of one meter has a power of up to 2500W. We generally set it for normal heating of heat transfer oil. The ratio is 1:1 or 1:1.5 in order to reduce the speed of carbon formation and life.

Generally speaking, no matter whether the heating air is dry or the liquid is heated, the lower the power per meter, the longer the life of the tubular heater.