Ultra-pure water machine is also known as ultra-pure water, it is mainly the use of pretreatment, reverse osmosis technology, ultra-purification treatment and post-treatment methods, the conductive medium in the water will be almost completely removed, but also the water will not dissociate colloidal substances, gases and organic matter are removed to a very low degree of water treatment equipment. It is divided into laboratory and household, laboratory use of ultrapure water machine purity is higher than the household. You may not know the use of ultrapure water machine, the following small introduction to you.
A, ultra-pure water machine use
1, open the faucet, the water pressure gradually decreases, a few seconds later, the purity of the machine normal water, proving that the water inlet solenoid valve is good.
2, close the water ball valve, water dispenser shutdown, open the water ball valve, dozens of seconds later, the water dispenser boot, proving that the water dispenser low-pressure switch boot function is intact and effective.
3, after everything is normal, you can pressure water storage tank full of pure water, open the faucet, let the pure water rinse post activated carbon, until the water is clean, close the faucet to let the machine normal water production.
Ultra-pure water machine precautions
The actual amount of water produced by the ultra-pure water machine will be affected by the pressure of raw water, raw water temperature and other conditions, of which the temperature of the raw water has a greater impact on it. Low temperature will lead to smaller water production. Users are asked to run the equipment in a ventilated and dry room temperature, to avoid the pollution of dust on the equipment; avoid the equipment is placed below zero degrees Celsius work for a long time.
Two, ultra-pure water machine how to buy
Pure water difference
In the correct choice of laboratory ultra-pure water machine before, we must have a good understanding of the following concepts: what is pure water? What is ultrapure water? What is the difference between the two?
Pure water, also known as pure water, is to meet the hygienic standards for drinking water as raw water, through electrodialysis, ion exchanger method, reverse osmosis, distillation and other appropriate processing methods, the system is sealed in containers, and does not contain any additives, colorless and transparent, can be directly consumed water. Space water sold on the market, distilled water are pure water.
Ultra-pure water is pure water on the basis of further conductive media in the water is almost completely removed, the water will not be dissociated from the colloidal substances, gases and organic matter are removed to a very low degree of water. Resistivity greater than 18MΩ * cm, or close to 18.25MΩ * cm limit value. Ultrapure water is generally difficult to reach the extent of the process, can be microfiltration technology, ultrafiltration technology, reverse osmosis technology, EDI technology, ion exchange technology in two or more of the technology, through a reasonable process design, equipment selection, before the manufacture of ultrapure water, resistivity up to 18.20MΩ * cm.
Ultra-pure water equipment is a laboratory test, quarantine with the production of pure water device. Laboratory ultrapure water machine is suitable for testing centers, research institutes, colleges and universities, hospitals and enterprises in the laboratory, to provide the required water for analytical testing, reagents, experimental water and water for analytical instruments.? In the inorganic and analytical chemistry experiments, according to the different tasks and requirements of the water purity requirements are different, pure water is divided into "pure water" and "ultrapure water".
People generally in the process of purchasing ultrapure water equipment, often confuse these two concepts, resulting in selection difficulties, increasing the cost of supplies for no reason. In the purchase of ultrapure water equipment should pay attention to the following points:
1, the purchase of ultrapure water equipment, it is best according to the nature of your business, the purpose of the experiment, the quality of the water requirements, in order to buy the model based on the previous experience of sales for you;
2, the purchase of ultrapure water equipment model reference indicators should follow p>Currently, the domestic market for ultrapure water machine has changed from the past situation to "a dominant, a hundred competing conditions", the domestic manufacturers of ultrapure water machine has made great progress, but the overall level of technology is relatively low, really can make ultrapure water manufacturers or relatively few. Many manufacturers to resistivity of 18.2?MΩ.cm of pure water is understood as ultrapure water, in fact, this is a misunderstanding of a misunderstanding, because a lot of organic molecules, bacteria, particles do not exist in the form of ions, so it will not affect the determination of the resistivity, resulting in good resistivity readings, the water may still exist in the organics, bacteria and other contamination. Such water cannot be called ultrapure water, and truly ultrapure water contains almost no impurities. Today the domestic market for ultrapure water machine is gradually thriving, a large number of manufacturers are trying to improve the technical level, to develop a new world.
Three, ultrapure water machine maintenance
Water
Tap water as a source of ultrapure water machine generally have two outlets, respectively, the three water and water, the reverse osmosis out of the water is the third level of water, stored in the tank, and the first level of water is ready to take, do not Storage. Three-stage water did not pass through the purification column, and one-stage water passed through the purification column, and the cost of one-stage water is higher than three-stage water. Therefore, in the daily application, should be based on the water quality needs of water quality, can use three water, try not to use a water, to avoid the use of rising costs.
Precision Filter
Precision Filter, also known as the filtration cartridge, wire-wound cartridge and PP meltblown cartridge, the main filtration of sediment in the raw water, such as large particles, and its filtration precision of 5 micron, 1 micron and so on. The new cartridge is white, if the time is long the surface will be silt and sand, brown, which means that the cartridge can not be used, with tap water to rinse off the surface of the silt, you can barely continue to use 1-2 weeks, but can not be used for a long time. Filter element placed inside the filter bottle, some filter bottles are transparent, you can visually observe the color change of the filter element, some filter bottles are opaque, you need to unscrew it in order to observe the changes in the filter element. From empirical statistics, the life of the precision filter element is generally in 3-6 months, such as raw water sediment, its life is shorter, less sediment and other particles, the life is a little longer.
Activated Carbon Filter
Activated Carbon Filter is made of high quality fruit shell carbon and coal-based activated carbon, supplemented by food-grade binder, using high-tech technology, processed by a special process, which adsorption, filtration, interception, catalytic effect in one, it can effectively remove the organic matter in the water, residual chlorine and other radioactive substances, and has a It can effectively remove organic matter, residual chlorine and other radioactive substances in water, and has the effect of decolorization and odor removal. It is a new and ideal product for liquid and air purification industry. Types: white head sintered activated carbon cartridge, black head with skeleton, sintered activated carbon cartridge, granular activated carbon cartridge and so on. Activated carbon cartridge from the surface there is no intuitive change, according to experience, generally in about a year to reach saturation adsorption, need to be replaced.
Reverse osmosis membrane
Reverse osmosis membrane is a very important part of the ultra-pure water machine, its pore size is very small, so in the process of using often bacteria and other microscopic substances sludge on its surface, generally various manufacturers of water purifier have backwash function, designed to wash away the pollutants. Water consumption within 10 liters / day, you can rinse 3-5 times, more than 10 liters, then rinse a few more times. If it is not used for a long time (e.g., more than 1 month), it needs to be removed and soaked in a disinfectant solution to avoid bacterial growth, but the process is cumbersome, and it is recommended that even if the water is not used, it is often switched on with a small amount of water to allow the formation of a flow of water inside the machine to minimize the deposition of stagnant water for an excessive period of time. The life of the reverse osmosis membrane in 2-3 years, mainly by the amount of water used to determine, so in the selection of the time must choose to match the specifications.
Purification column
Purification column according to the customer's water quality needs sometimes called ultra-purification column, its role is to reverse osmosis purified water depth desalination, and ultimately reach the level of first-class water or ultrapure water. The principle is ion exchange. The life of a purification column is shown by the resistivity online. Below a particular resistance means that the purification column has expired, which is relatively intuitive. Its life expectancy in addition to resistance to water consumption, especially important is the manufacturers in the production of the design of the filling amount of ion exchange resin and the quality of the ion exchange resin itself.
Looking at the above you should be more clear on the use of ultrapure water machine, if there are any details do not understand, you can consult the manual. If there are any details that you do not understand, you can consult the manual, if the manual is not there, then Baidu, if not even Baidu then you can only find the after-sales. About the introduction of ultrapure water machine is here, want to know more please continue to pay attention to Tubar rabbit learning to decorate it!