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Shanghai Yetuo Ultra Pure Water Machine - Understanding Pure Water Machines
release time:2024-05-08  |  Browse:1711

A pure water machine refers to a water purification device that removes or reduces the degree of salt (mainly strong electrolytes dissolved in water) from water. The resistivity (25 ℃) of the produced pure water is generally 1.0-10.0 μ S/cm, with a salt content of 1-5 mg/L. A pure water machine is a type of water purification equipment that uses multi-stage filter cartridges for water purification treatment. Physical methods such as filtration, adsorption, and reverse osmosis that do not add chemicals are often used for treatment. According to the water purification accuracy of pure water machines, they can be divided into two categories: domestic drinking pure water machines, also known as household pure water machines, and laboratory pure water machines that can meet the requirements of laboratory pure water quality.

It is used to filter floating objects, heavy metals, viruses, etc. in water. It has high filtration technology. Household pure water machines generally have four or five levels of filtration. The first level is PP cotton filter, the second and third levels are activated carbon (well made manufacturers can combine the second and third levels into one), the fourth level is RO reverse osmosis membrane, and the fifth level is precision activated carbon, mainly used to increase taste. Therefore, pure water machines are more suitable for areas or equipment with severe tap water pollution that require pure water

Divided by usage:

Domestic drinking pure water machine (household pure water machine), laboratory pure water machine (also known as ultra pure water machine), industrial pure water machine, and large-scale industrial pure water machine.

According to usage, it can be divided into:

1. Manual type, also known as economical type. The economical pure water machine uses a manual backwash valve.

2. Automatic type refers to a fully computerized automatic flushing pure water machine, which achieves flushing through a computer control board.

3. Self cleaning type, also known as self-cleaning type, is a self-cleaning reverse osmosis series of self-cleaning water purifiers. Its advantage is that it does not require economical manual operation or automatic electrical components. It not only has a simple structure, but also achieves self-cleaning of the whole machine.

According to the combination of the host and the water storage tank, it can also be divided into split type and integrated type. Split type has a relatively large footprint, while the water storage tank and the body are separated; The main unit and water storage tank of the integrated pure water machine are together, occupying a small area and having a beautiful and elegant appearance.

The ion exchange of a pure water machine is a solid adsorption process that occurs in an electrolyte solution of an ion exchanger. A typical ion exchange agent is a solid particulate substance that is insoluble in water, namely ion exchange resin. It can extract a certain cation or anion from the electrolyte solution, and exchange an equal amount of another ion with the same charge sign contained in it, and release it into the solution, which is called ion exchange.

According to the type of ions exchanged, ion exchangers can be divided into two categories: cation exchangers and anion exchangers. The industrial pure water machine consists of three main parts: pre-treatment system, precision treatment system, and post-treatment system. After passing through pre-treatment systems such as PP filter element (sand rod filter), activated carbon unit, and water softener unit, the content of suspended solids (particulate matter), colloids, organic matter, hardness, microorganisms, and other impurities in the water is greatly reduced to reduce the processing load of subsequent precision treatment systems such as reverse osmosis and electric desalination, and extend their service life.

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