Selection and maintenance of stainless steel water tank

Selection and maintenance of stainless steel water tank
Stainless steel water tank, composed of high combined stainless steel plate water tank, storage tank and low water tank three parts. The use of water tank can save a lot of clean water for drinking, social and economic benefits significantly. This article describes how the stainless steel tank is selected, and how to maintain the tank.
1, stainless steel tank material should have sufficient strength and the use of durability, such as antioxidant capacity and year-round in the case of warm water to run the anti-erosion ability. In addition, the metal material to have excellent weldability, so that the tank is easy to manufacture.
2, stainless steel is a modern country of solar water heaters throughout the use of the material. Stainless steel has excellent strength, plasticity, corrosion resistance and weldability, with thin stainless steel plate welded into the tank is both light and strong, in the integration of pressure and non-pressure solar water heaters throughout the use.
3, a wide range of stainless steel, the selection of stainless steel trademark to consider the strength, plasticity, weldability, economy, especially in chloride water in the anti-erosion. Widely used in chemical, food industry, kitchen equipment 304 stainless steel austenitic stainless steel, strength, excellent plasticity, good weldability. At present, China's non-pressurized water tanks are mostly made of 304 stainless steel.
4,304 stainless steel in the oxidizing acid medium resistance to erosion can be strong, but in the chloride ion water prone to point erosion and stress erosion. When the chromium content in the steel is 12%, because the oxidizing vivid chromium is agglomerated on the surface of the steel and the oxygen becomes dense, the solidified oxygen-rich passivation film
(Cr2O3), which is useful for isolating further intrusion of oxygen. Therefore, in the air or oxidizing acid (such as nitric acid), this type of steel anti-average erosion function is good, no rust, so called stainless steel. However, in the water, especially in the high concentration of Cl-containing water, because the Cl-ion in some parts of the Cr2O3 passivation film from the destruction effect, causing the attack part of the erosion. Compared with the average erosion (chemical erosion), part of the erosion (electrochemical erosion) faster, more risky, often lead to leakage effect.
5, Hebei glass steel tank and in the Cl-containing water medium, the most vulnerable to corrosion of stainless steel is a thin section of the welding area, because the area is subject to high temperature heating, organization and function of deterioration, anti-erosion technology function is also reduced. Therefore, the service life of the tank should depend on the erosion of the grain boundary, the stress erosion and the erosion of the part of the tank (weld zone). Experimental study shows that when the concentration of Cl-ions in the water is high, the crack (point) erosion is the most common form of erosion in the tank. Stainless steel tank proper cleaning method
Close the inlet valve, open the drain hole plug (or valve), so that the remaining water tank drain. The water tank with ladder can climb into the water tank along the ladder, and the water tank without the ladder can be used in the tank and the outer side, and the bamboo ladder can be entered into the water tank along the bamboo ladder.
Clean the periphery and bottom of the tank with a clean mop or rag. The bottom of serious dirt, soft towel can be used to clean detergent.
Open the inlet valve, put the right amount of water to wash the wall and the bottom of the tank, so that dirt from the sewage outfall, if necessary, can be repeated several times until satisfied.
Tighten the drain plug, open the water inlet valve, so that the tank re-filled with water, cleaning work is over.
Note: cleaning work is a complicated labor, as long as not afraid of dirty, patient and careful, according to the above procedures to clean the tank
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