Working principle of stainless steel anti-corrosion roots blower and difference of anti-corrosion performance of materials

The casing of anti-corrosion roots blower is made of stainless steel, and its structure is the same as that of general roots blower. 304 stainless steel, 316 stainless steel, 2205 stainless steel and other materials are widely used, with good quality and durability. Heat resistant and high-pressure stainless steel Roots blower is made of food grade stainless steel, which has good heat resistance and high pressure characteristics, low material loss, and is suitable for high demand environments such as grain transportation and flour transportation.

Stainless steel Roots blower adopts three blade straight impeller, with light inlet and exhaust pulse and low noise. The whole equipment is compact in structure and unique in appearance. Let's talk about the difference between stainless steel roots blower and ordinary roots blower:

1. Stainless steel Roots blower has different anti-corrosion capacity

Roots blower made of stainless steel has strong corrosion resistance. For example, when the substance is acid gas, such as carbon dioxide, hydrogen sulfide and chlorine. There are also alkaline gases such as ammonia. Roots blower must be made of stainless steel when transporting these gases, but it is not recommended to use ordinary pig iron roots blower.

2. Stainless steel Roots blowers have different outlet gas cleanliness

Roots blower used by food enterprises must clean the exported gas, such as sugar industry and milk powder industry. Roots blower is made of stainless steel plate. The micro particles that will not be caused during the operation of the blower are discharged with the gas, while the pig iron Roots blower will be more or less damaged during the operation, discharged with the gas, and then mixed with food.

3. Stainless steel roots blowers have different prices

The cost of stainless steel Roots blowers is relatively high, and commodities with expensive raw materials will naturally be expensive, and the price is generally three times higher than pig iron. And the processing technology of stainless steel is very difficult, because the material is sticky. Combining the two factors, the finished product of stainless steel roots blower is at least several times higher than that of pig iron roots blower.

4. Stainless steel roots blower has different strength

Steel Roots blower has high strength, and pig iron material is easier to process during processing.

5. Heat expansion index of stainless steel Roots blower

When transporting steam, the temperature of stainless steel Roots blower must be considered, because fans made of different materials have different thermal expansion indexes, and the thermal expansion indexes of pig iron fans and stainless steel fans are very different.

1. 304 stainless steel roots blower

The common 304 stainless steel model in the market has strong corrosion resistance and good strength.

2. 316 stainless steel Roots blower

316 stainless steel roots is suitable for the food industry and surgical equipment, and is widely used in the food industry. When many food processing enterprises use Roots blower, most of the embers use stainless steel with this logo.

3. 2205 stainless steel roots blower

Roots blower is 2205 type, with high strength, good fracture toughness, and good overall and local intergranular corrosion resistance. Its application fields are mostly paper industry and sewage treatment equipment.

Will stainless steel roots blower not rust?

Stainless steel Roots blower is not stainless steel, but has stronger anti rust ability, that is, the stainless steel mentioned by everyone. In dry environment, stainless steel roots blower has good corrosion resistance and strong corrosion resistance. If we install stainless steel roots blowers on the beach, the stainless steel will rust in the environment containing acid, alkali and salt.

Is the corrosion resistance of stainless steel Roots blower the same?

Here, we should understand that different stainless steel models have different corrosion resistance. For example, 304 stainless steel and 316 stainless steel have stronger corrosion resistance. Therefore, the corrosion resistance of stainless steel negative pressure roots blower will be affected by the stainless steel model.

The performance of stainless steel fan is described

Will external force damage of stainless steel Roots blower rust?

Stainless steel is a very thin, firm, delicate and stable chromium rich oxide film (protective film), formed on its surface, oxygen atoms continue to penetrate and oxidize, thus obtaining corrosion resistance. Once there is some reason, such films will continue to be damaged, oxygen atoms in gas or liquid will continue to penetrate or iron atoms in metal will continue to separate, forming loose compounds, and the metal surface will continue to be corroded.