Introduction:
Industrial pure water equipment is used for the pure water production of industrial production water. Take the device. < r>Industrial pure water machine
Can be used for: drinking bottled water, food, industrial water, semiconductor industry, fine chemicals, optics, industrial water, electroplating water, medical water, dialysis medical water, replacing various types of distilled water and ultrapure water supply, etc.
Industrial pure water equipment
Principle introduction:
< r>Ion exchange
Ion exchange is a special solid adsorption process, which is carried out in the electrolyte solution of ion exchanger. A general ion exchanger is a solid granular material that is insoluble in water, namely < r>ion exchange resin
. It can absorb certain cations or anions from the electrolyte solution, exchange an equal amount of another ion with the same charge sign contained in itself, and release it into the solution. This is the so-called ion exchange. According to the types of ions exchanged, ion exchangers can be divided into two categories: cation exchangers and anion exchangers.
Industrial pure water equipment
Ion exchange:
First, electrolyte ions (calcium, magnesium, iron, sodium, etc.) pass through the liquid film and enter the resin surface
b ions enter the interior of the resin
ions Exchange
Diffusion of ions or radical ions to the outside of the resin
Formation of ions or radical ions into the water. Double bed is also called a compound bed. The compound bed is a series connection of two different ion exchange exchangers, positive and negative, such as a strong acidic cation exchange resin and a strong basic anion exchange resin connected in series. This kind of equipment composed of a cation bed and an anion bed in series is called a
. The water first passes through the cation bed to remove positively charged ions (such as ++++), and replaces the + ions into the water and then removes them. Negative ions (such as ) in water and displace the ions into the water. At the same time, + ions and ions combine to form water, thereby achieving deionization.
Industrial pure water equipment
Mixed bed:
In the same exchanger, place < r> anion and cation exchange resin
It is filled according to a certain volume ratio, and the anions and cations are exchanged in a uniform mixing state to remove the salt in the water, which is called mixed bed desalination treatment. During the exchange process, the anion and cation exchange resins in the mixed bed are in a uniform mixing state, staggered, and in contact with each other. It can be regarded as a multi-stage compound bed composed of many anion and cation exchange resins, which can be equivalent to ~ level. Because it is uniformly mixed, the exchange reactions of anions and cations are carried out almost simultaneously, and the generated + and ions are synthesized immediately. The exchange reaction proceeds very thoroughly, and the effluent quality is high.
System structure flow
Pre-treatment equipment (multi-media filtration equipment activated carbon filtration equipment) + ion exchange equipment pure water
< r>Industrial pure water equipment
Ultraviolet sterilization:
The principle of ultraviolet sterilization is generally believed to be that the nucleic acid in the organism absorbs the energy of ultraviolet light and changes its own structure, thereby destroying the function of the nucleic acid. When the energy absorbed by the nucleic acid reaches a lethal amount and the ultraviolet light irradiation can be maintained for a certain period of time, a large number of bacteria will die.
Features of ultraviolet sterilization:
Ultraviolet sterilization is fast, efficient and effective.
Ultraviolet irradiation will not change the physical and chemical properties of water, and will not cause pollution caused by additives to pure water.
It is suitable for various water flow rates. It is simple to operate and easy to apply. You only need to clean the quartz glass sleeve regularly and replace the lamp.
Small size, light weight, low power consumption.
Ultraviolet sterilization does not have a continuous disinfection effect and is susceptible to secondary pollution. Oxidation by UV light.
< b/_r_>< Deionized water equipment
Industrial pure water equipment
Purification column unit:
The purification column is filled with nuclear grade< r> Mixed bed resin
, when the raw water passes through the purification column, the cations in the water are replaced with the + in the cation resin, and the anions in the water are replaced with the ions in the anion resin. After the exchange, the + and ions in the water will be combined and generated immediately, so that the anions and cations in the raw water can be removed. Its outlet water resistivity can reach the highest.
A complete water treatment system consists of three parts: pretreatment system, fine treatment system and post-treatment system. After the raw water passes through the pretreatment system such as the filter element (sand rod filter), activated carbon unit, water softener unit, etc., the content of suspended solids (particulate matter), colloidal organic matter, hardness, microorganisms and other impurities in the water is greatly reduced, thereby reducing the need for subsequent reverse osmosis electric desalination and other refined products. Handles the processing load of the system and extends its service life.
Material: Polypropylene hot melt fiber filter element.
Features: The filter holes can intercept particulate matter in the water (such as sediment and rust often found in tap water) and reduce turbidity, but cannot filter out bacteria and ionic substances.
Specifications: inch (㎜)/inch (㎜).
Industrial pure water equipment
Activated carbon unit:
< r>Activated carbon
has a large specific surface area and is filled with micropores with extremely small pore diameters (~Angstrom), which is very toxic to organic matter. Colloidal residual chlorine, ferric ions, etc. have obvious adsorption and filtration effects. Commonly used inch/inch activated carbon filters for desktop water purifiers and other water purifiers. Large pure water units commonly use activated carbon filters made of fiberglass/stainless steel.
Industrial pure water equipment
Water softener unit:
Large and medium-sized pure water systems often use
to remove calcium and magnesium ions from raw water. The fully automatic water softener is composed of a sodium ion resin tank, a regenerated salt tank and a multi-way control valve. It can set a program to control the operation and automatically regenerate (two control modes: time type/flow type). During regeneration, it uses the siphon principle to absorb salt and then inject water. The regeneration time is usually hours.
Small desktop water purifiers generally use inch/inch soft water resin filter elements to reduce the hardness of raw water.
Reverse osmosis unit
R (Rr) reverse osmosis technology is a membrane separation and filtration technology that uses pressure gauge differences as power. It originated from the research of aerospace technology in the United States in the 1960s and was gradually transformed into civilian applications. , has been widely used in scientific research, medicine, food, beverage, seawater desalination and other fields.
The pore size of the R reverse osmosis membrane is as small as nanometers (nanometers). Under a certain pressure, molecules can pass through the R membrane, but impurities such as inorganic salts, heavy metal ions, organic matter, colloidal bacteria, and viruses in the source water cannot pass through the R membrane, thus Strictly distinguish the permeable pure water from the impermeable concentrated water.
The removal rate of R membrane for high-valent ion colloidal bacteria and organic substances (including heat sources) with a molecular weight greater than 10% is as high as %, and the removal rate for low-valent ions (++) is up to %. When the conductivity of the source water is /, R pure water The conductivity is generally /, in line with the national water standards. Then through atomic-level ion exchange column circulation filtration, the water output rate can reach up to 100%.
The reverse osmosis method is the most economical method that can achieve %~% impurity removal rate, and it is also the best pre-treatment method for reagent-grade ultrapure water systems.
Note: The filtration capacity of the R membrane is greatly affected by the water temperature. The most suitable water temperature is ℃ ~ ℃. If the temperature drops by ℃, the water production of the R membrane will decrease by about %. When the water temperature approaches ℃, the R membrane will stop production. water.
Industrial pure water equipment
< r>Ultrafiltration unit
:
Ultrafiltration membrane is also called hollow fiber ultrafiltration membrane. The pore size is between reverse osmosis and microfiltration, about ~, and is often used as a post-treatment device in pure water systems. It can be used to intercept various particles, macromolecules, solutes, bacteria, viruses, pyrogens, etc. in the solution. The pore size of an ultrafiltration membrane is measured by a interception test for substances of a certain molecular weight, and is expressed as a numerical value of molecular weight. The molecular weight of an ultrafiltration membrane that can filter out pyrogens is usually Daltons.
Ultraviolet instrument unit
Ultraviolet rays are a kind of light wave that is invisible to the naked eye. It exists outside the ultraviolet end of the spectrum, so it is called ultraviolet rays. According to different wavelength ranges, it is divided into three bands: B. The wavelength of ultraviolet rays in the middle is the most effective sterilizing band, and the strongest point is the wavelength in the band.
When a sufficient dose of strong ultraviolet light generated by ultraviolet equipment is irradiated into water, liquid or air, various bacteria, viruses, microorganisms, parasites or other pathogens in it will be destroyed by the radiation of ultraviolet light. Thereby preventing the regeneration of daughter cells, ultraviolet disinfection equipment can kill more than % of bacteria and viruses in liquids in water or air in a short period of time (usually seconds) without using any chemicals. Scientific experiments have proven that ultraviolet rays with wavelengths in the range have efficient sterilization functions.
Modern < r> Ultraviolet disinfection technology
is based on modern epidemic prevention, optical biology and physical chemistry, using a specially designed high-efficiency, high-intensity and long-life band ultraviolet light generation device to produce Strong ultraviolet light irradiates flowing water (air or solid surface). When various bacteria, viruses, parasites, algae, and other pathogens in the water (air or solid surface) are exposed to a certain dose of ultraviolet radiation, the structures in their cells are destroyed. This can kill bacteria, viruses and other pathogenic organisms in the water without using any chemicals to achieve the purpose of disinfection and purification.
The ultraviolet sterilizer is made of stainless steel or stainless steel as the main material, with high-purity quartz tubes as the casing, and high-performance quartz ultraviolet low-pressure mercury disinfection lamps. It has the advantages of strong sterilization power, long life, branch stability and reliability. Its sterilization Efficiency %, imported lamps have a short service life.
After-sales service:
The company implements one-year warranty and lifetime warranty for each set of equipment provided. It has a complete parts library and provides all spare parts to provide users with Suppliers/manufacturers of related equipment and consumable materials
Within one year from the date of acceptance of the equipment, unless there are force majeure factors such as man-made or natural disasters, if the water output is unqualified due to quality problems of the equipment itself , our company will be responsible for free repair or replacement. Maintenance services after the free maintenance service period will only be charged a reasonable cost.
Before the equipment is debugged and delivered for use, complete operation and maintenance procedures will be provided to customers, free operation and maintenance training will be provided, and a service engineer will be stationed on site to follow and operate the service day after day
During the annual warranty period, service engineers are dispatched every month to check the operating status of the equipment on site, and make irregular phone calls to visit the operating status of the equipment. Outside the warranty period, after-sales service engineers and technicians make regular visits to equipment users, regularly check operation records, and collect feedback information and guidance. Assist users to solve related problems.
Provide users with relevant technical consultation and rational suggestions for reducing operating costs
According to the equipment condition, if our company receives a repair notification, it can be solved by phone, and it needs to be on site within hours. solve.
Contact person: Wang Peng