How To Properly Handle The Corroded Tubular Heater
How to properly handle the corroded Tubular Heater
Long time in the liquid heating of the Tubular Heater will appear in varying degrees of surface corrosion. Tubular Heaters will gradually expand due to corrosion and then cause leakage to eventually lead to damage can not be used. As a user, what kind of processing to alleviate the Tubular Heater due to corrosion and the emergence of a variety of adverse outcomes?
Corrosion of Tubular Heater
Stainless steel will rust under certain conditions, stainless steel has the ability to resist atmospheric oxidation, that is, stainless steel, but also in acid, alkali, salt, corrosion resistance of the medium that is corrosion resistance. But its corrosion resistance is the size of its steel chemical composition, mutual state, the use of conditions and environmental media type changes, when exposed to chlorine or harsh environment, especially the surface of the passivation layer is mechanical or After chemical damage, it is easier to rust than usual. Such as 304 steel pipe, in the dry and clean atmosphere, there is absolutely excellent resistance to corrosion, but it moved to the beach area, in a large amount of salt containing sea fog, will soon rust; and 316 steel performance good. Therefore, not any kind of stainless steel, in any environment can be resistant to corrosion, no rust.
Corrosive Tubular Heater treatment method
1. Chemical methods:
With a spray or pickling paste to help the corrosive parts of its re-passivation of the formation of chromium oxide film, to restore its corrosion resistance. Tubular Heater Apply the acid pickles to the surface to be treated, the thickness of the coating is 0.5-2mm, the general reaction time is 3-10 minutes or more, 0 ℃ below or the thickness of the oxide, the need to extend the appropriate time. The best process to brush with a brush several times, the surface oxide completely removed, with water (lime water or alkaline water better) rinse, to avoid rust. After pickling, it is important to properly rinse with water in order to remove all contaminants and acid residues. After all the treatment with polishing equipment to re-polished, with a wax can be closed. On the local mild rust can also be used 1: 1 gasoline, oil mixture with a clean cloth wipe rust can be.
2. Mechanical method:
Blasting, cleaning with glass or ceramic particles, Tubular Heater and annihilation, scrubbing and polishing. It is possible to wipe off the contamination of the material, polishing material or annihilation material that was previously removed by mechanical means. All kinds of pollution, especially foreign iron particles, may become the source of corrosion, especially in humid environments. Therefore, the mechanical cleaning surface should be carried out under dry conditions in the regular clean-up. The use of mechanical methods can only clean up its surface, can not change the corrosion resistance of the material itself. It is therefore recommended that the machine be cleaned with a polishing device and then polished with a polished wax.
In order to allow more users to understand the application of Tubular Heaters in different corrosion-resistant liquids, the market now has 304 stainless steel Tubular Heaters, 316 stainless steel Tubular Heaters, titanium Tubular Heaters, Teflon Selection of Tubular Heater and Quartz Tubular Heater in Corrosive Environment.
The load intensity of the Tubular Heater is determined by the conditions such as its external environment, the heating environment, the installation method and the maximum temperature of the equipment. How to make the Tubular Heater product work under more reasonable power and load and need to be designed and fabricated The process of accurately determine the voltage and power and determine the cross-sectional area and length, which in the course of the direct impact of the length of the Tubular Heater life. It is therefore necessary to understand the load of the Tubular Heater.
First, the heat load:
Heat load is one of the important indexes in the design of electric heating elements. Mainly refers to the Tubular Heater surface area in the unit time to convert the heat. The thermal efficiency is gradually reduced as the load decreases. The lower the load, the greater the rate of thermal efficiency reduction. So the appropriate heat load is more conducive to the work of the equipment. Economically, it can save costs.