What are the precautions for the internal anti-corrosion
Activated carbon filter is also called carbon filter, carbon filter, in the description of activated carbon filter, I first explain one of his misunderstandings, many people mistaken 'charcoal' for 'carbon', so they become carbon filters, or carbon filters , Activated carbon filter, from the word analysis: charcoal is charcoal, charcoal ash, etc. are made of wood after firing, and carbon is gas and chemical elements c, such as carbon dioxide, so the analysis should be correct for the activated carbon filter.
Guangzhou Lvyuan Water Purification Equipment Co., Ltd. specializes in the design and production of activated carbon filters and activated carbon filter complete sets of equipment. The activated carbon filter complete sets of equipment consist of a booster pump (if the inlet water pressure is above 0.35mpa, it will also be above 3.5 kg, 5 kg The following does not need a booster pump), backwash water pump, electric control box, body backwash, forward washing, operation switching pipes and valves, activated carbon filter tank, activated carbon filter material.
Here we will focus on the activated carbon filter tank. The activated carbon filter tank consists of upper and lower water distributors, cylinders, heads, legs, manholes (also used as feed ports), discharge ports, and internal corrosion protection. The filter is composed of external processing. The filter tank is made of stainless steel and carbon steel.
Activated carbon filters are generally used in drinking water, sewage decolorization and deodorization, industrial water, reverse osmosis equipment, nanofiltration equipment, soft water equipment pretreatment, etc., are widely used and are one of the most common equipment for water treatment equipment.
Activated carbon filter is a mechanical filter that absorbs organic matter, ions and other impurities in the water through the activated carbon filter material. It is a kind of mechanical filter. It is mainly used to clean the filter material through backwashing and forward washing.
Activated carbon is corrosive. First of all, the metal ions it adsorbs will corrode the tank body. Second, it is because the activated carbon and the tank body form electrochemical corrosion, which accelerates the corrosion of the mechanical filter. It is not like the quartz sand filter. Quartz sand has precision filter elements and bag filter bags. They are less corrosive to the tank, so the inside of the activated carbon filter must be anti-corrosive.
Activated carbon filters generally use rubber lining or epoxy coating for anticorrosion. Relatively speaking, the anticorrosion performance of rubber lining is higher than epoxy anticorrosion. In addition to durability, rubber-lined filters are better than epoxy filters, because activated carbon filters tend to wear off the activated carbon during the washing and backwashing processes. But the cost of rubber lining is much higher than the cost of epoxy, so it is used for which anti-corrosion needs to be considered comprehensively.
The filter cartridge
1. Introduction of filter element
Filter element is also called water treatment filter element, precision filter element, security filter element, if it is placed in reverse osmosis precision filter and ultrafiltration pre-precision filter is also called security filter, ultrafiltration and reverse osmosis security The filter (precision filter) mainly protects the ultrafiltration membrane and reverse osmosis membrane and prolongs the life of the membrane. Generally, the accuracy of the filter element of the security filter before reverse osmosis is 5 microns, while the precision filter of ultrafiltration is about 50 microns. Filters are also used in quartz sand filters, activated carbon filters and other mechanical filters, manganese sand filters, etc., to further purify the water and remove fine impurities, microorganisms and bacteria in the water.
Second, the classification of precision security filter elements
1. The filter element interface can be divided into: 1. PP cotton melt blown filter element 2. Pleated filter element 3. Wire wound filter element 4. Titanium rod filter element
2. The accuracy of the filter element: 100um, 50um, 30um, 20um, 10um, 5um, 1um, 0.45um, 0.22um, 0.1um
3. The filter element sizes are: 10 inches, 20 inches, 30 inches, 40 inches and large flow filter elements.