brief introduction
With the development of science and technology, people are not in the research and development of new equipment at the same time also will be added to the social demand considerations. The use of new reverse osmosis technology research and development of industrial pure water equipment is the concrete manifestation of the development of science and technology.
working principle
Penetration is a common phenomenon in nature, such as a cucumber into the brine, the cucumber will be less. The water molecules in cucumber into the brine solution process is the infiltration process. If only the water molecules can be used to penetrate the film will be a pool of water cut into two parts, the two sides of the diaphragm were injected with pure water and salt water to the same height. For a period of time, it was found that the water level was reduced, while the salt water level rose. The phenomenon that we move water molecules through the membrane to the brine is called osmosis. Salt water level is not endless, to a certain height will reach a balance point. At this time, the pressure of the diaphragm at both ends of the liquid level difference is called osmotic pressure. The size of osmotic pressure is directly related to the concentration of salt water.
In the above device to achieve balance, if the water level in the salt water to put some pressure on, then, the water molecules will be moved from the salt water to the pure water. This phenomenon is called reverse osmosis, which is the phenomenon of migration from dilute solution to concentrated solution under pressure. If the brine is added to one end of the facility and is applied to the side of the pressure, we can get pure water at the other end. This is the principle of reverse osmosis water. Reverse osmosis facilities for the production of pure water, there are two, one is a selective membrane, known as semipermeable membranes, a certain pressure.
Simply put, reverse osmosis semipermeable membrane has many holes, the size of the size of the hole and water molecules, due to bacteria, viruses, most of the organic pollutants and hydrated ion were compared to water molecules is much larger, and therefore can not be through reverse osmosis membrane and and through reverse osmosis membrane separation of the aqueous phase. In water and many kinds of impurities and dissolved salts is the most difficult to clear. As a result, it is often according to in addition to the level of the rate of salt to determine the reverse osmosis water purifying effect. Anti osmosis in addition to the level of the rate of salt mainly depends on the selectivity of the reverse osmosis membrane.  [1]
Ultra pure water equipment in laboratory
Characteristics of water used in laboratory is little water, but the water requirement is high. In view of the actual situation, our company developed especially for use in laboratory ultrapure products, using multi-stage filtration, R.O. reverse osmosis and ultrafiltration filter and UV lamp digestion and so on many kinds of processing in, ensure the high quality of effluent water quality. Can high performance ion exchange unit enough to meet from the cleaning of glassware, laboratory for routine experiments, to all kinds of precision analysis experiment of water requirements.
The multi-stage filtration, R.O. reverse osmosis and ultrafiltration filter and UV lamp digestion and other processing means, to ensure the high quality of effluent water quality. Can high performance ion exchange unit enough to meet from the cleaning of glassware, laboratory routine test to all kinds of precision analysis experiments of water requirements.
Ultra pure water equipment in the electronics industry
Technology
1, pretreatment of reverse osmosis - Tank - Yang Yin bed bed mixed bed - purification tank - water pump ultraviolet sterilizer - polishing mixed bed - precision filter water object
2, pretreatment level reverse osmosis - dosing machine (pH adjustment) - water - the second stage reverse osmosis - purification tank - water pump ultraviolet sterilizer - 0.2 or 0.5 m precision filter water object
3, pretreatment reverse osmosis - intermediate water tank - water pump - EDI device - purification tank - pure water pump - ultraviolet sterilization - 0.2 or 0.5 m precision filter - water object
4, pretreatment of reverse osmosis - water pump - EDI device purification tank - water pump ultraviolet sterilizer - polishing mixed bed - 0.2 or 0.5 m precision filter water object
Water quality requirements
To meet the needs of users, to meet the standard of water quality, as far as possible to reduce levels of pollution, in the design process, taking up to national standards for tap water of the water as the source of water and a dielectric filter, activated carbon filter, fine filter pre treatment system, RO reverse osmosis system main engine, ion exchange bed system and so on.
1, the main role of the media filter is to remove the source of the suspended substances in water and mechanical impurities from high-quality stainless steel. The body is provided with a cloth water cap, refined quartz sand, etc., and can also be filled with other fillers. Reasonable proportion of quartz sand loading and good water distribution system, so that the water quality of the system is more stable. In addition, the equipment is also provided with a gas flushing function, which can maximize the dirt in the medium and the bed layer, improve the water quality of the effluent and prolong the working period.
With 2, activated carbon filters and deodorization, decolorization, removing impurities such as organic matter of oil, adsorption, the greatest degree of removal of free residual chlorine, ensure reverse osmosis membrane of the influent water quality, equipment is made of high quality stainless steel material is made.
3, RO host system to introduce the international advanced reverse osmosis technology, the use of pressure difference principle, can effectively remove the salt in water.
4, mixed bed system using ion exchange technology, arranged in the Yin and Yang resin, reasonable resin