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Usually we call the existence of gas in liquid bubbles. The formation of bubbles can be encountered in many processes in the nature. When the gas is affected by the shear force in the liquid, bubbles of different sizes and shapes will be formed.

At present, the classification and definition of bubbles are not very strict. According to the order from large to small, they can be divided into centimeter bubble (CMB), millimeter bubble (MMB), micron bubble (MB), micro nano bubble (MNB) and nano bubble (NB). The so-called micro nano bubble refers to the bubble with a diameter of about 10 microns to hundreds of nanometers when the bubble occurs. This kind of bubble is between the micro bubble and the nano bubble, which has the physical and chemical characteristics that the conventional bubble does not have.

The air bubble generator is to inject nano bubbles into the dirty water, but it is not these bubbles that really purify the water quality, but the original microorganisms in the water. They are in the nano level, and will not diffuse and disappear after being injected into water, but will gather and integrate into a bubble layer and suspend in water. The microorganisms in water supply create a high oxygen environment suitable for their growth. In the process of growth and reproduction, microorganisms will eat the pollutants in the water as food, so as to purify the water.

The working principle of air bubble generator:

It uses the high-speed rotation of the impeller to form a vacuum area in the water. The air on the liquid surface enters the water through the gas transmission pipe to fill and cut, then the microbubbles are generated, and rise to the water surface spirally, and the oxygen in the air also enters the water. The sewage is fully mixed with the microbubbles produced by the impeller in the process of rising. Due to the imbalance between the gas water mixture and the liquid, a vertical upward buoyancy is generated, bringing the solid suspension to the water surface.

The air bubble generator can make the gas in the sewage dissolve in large quantity and effectively, improve the dissolved oxygen rate, and greatly improve the treatment efficiency and treatment effect. Through its own micro vibration reaction, the ultra-fine nano bubble generator stays in the sewage for a long time, which has the effect of sealing the gas.

About Edon-China Micro Bubble Generator Manufactures

Hello and welcome to Edon pump. We are a manufacturer of micro bubble generator which also called gas liquid mixing pump or DAF pump. Since its interception, our company has been researching, developing and adapting our micro nano bubble generator pumps to make it suitable for different specialty and new application or compatible to different countries' electricity system. From our factory in Shanghai, we can offer you different models of micro bubble generator for your various applications and standby spare parts.

Composition and working principle of micro nano bubble machine:

Micro nano bubble machine is composed of water pump, micro nano, generator, pressure gauge, aerator and some pipe fittings. It is a set of equipment specially developed for river treatment and dissolved oxygen repair. The core and technology of this series is mainly to use nanotechnology to compress a large amount of air into a large number of 0.25 mm diameter non pressure microbubbles. Then, the 0.25 mm diameter non pressure microbubbles are dispersed through the gas and liquid phase in a semi vacuum by using the release system, resulting in microbubbles and nanoscale bubbles with a diameter less than 3 μ, which are collectively referred to as the effect of microbubbles releasing to the water body for rapid oxygenation. The micro nano bubbles will not increase and rise. It has special physical and chemical properties such as long survival time, long time in water for 72 hours, large specific surface area, high interface activity, charge with energy and so on. It has a large contact area with water and a high dissolved oxygen rate. The system diffuses a large number of micro  nano bubbles to every corner of the water through the release system at the set depth of water, and the utilization of oxygen is up to 50% - 80%. This equipment uses pure physical method to produce bubble water without adding any chemical substances. The power consumption and the power consumption of the best aeration device in China can be reduced to 1/5, which is much higher than the traditional equipment, and the energy-saving effect is obvious.

With the consumption of dissolved oxygen in the bubble, active oxygen is added to the water and the content of water is increased rapidly. At the same time, all kinds of organic particles in the water are rapidly decomposed to smaller particles, which is beneficial to further biological decomposition and greatly reduces sludge sedimentation. At the same time, micro nano bubbles can greatly improve the supply of oxygen, enhance the biological activity of oxygen microorganisms, plankton and aquatic animals in the water, accelerate the degradation process of pollutants in the bottom mud of the water, and achieve the purpose of water purification.

About Edon-China Micro Bubble Generator Manufacture

Hello and welcome to Edon pump. We are a manufacturer of micro bubble generator which also called gas liquid mixing pump or DAF pump. Since its interception, our company has been researching, developing and adapting our micro bubble generator pump to make it suitable for different specialty and new application or compatible to different countries' electricity system. From our factory in Shanghai, we can offer you different models of micro bubble generator for your various applications and standby spare parts.

DAF is a kind of air floatation. It uses the different solubility characteristics of water under different pressures to pressurize and aerate all or part of the water to be treated (or treated) to increase the air solubility of water. It is released under normal pressure through the addition of the water with concrete, and the air is separated to form small bubbles, which adhere to the impurity floc particles, resulting that the overall density of floc particles is less than water and began to rise to separate the solid from the liquid.

DAF is suitable for the treatment of water with low turbidity, high chroma, high organic content, low oil content, low surfactant content or rich algae. Compared with other air flotation methods (see Appendix 1 for details), it has the advantages of high hydraulic load and compact tank body. However, its application is limited by its complex process, large power consumption and large noise of air compressor.

1 type according to different classification principles, DAF can be classified differently.

1.1 According to the different pressure at which bubbles are separated from water, they can be divided into two kinds: principles and applications of dissolved air flotation. The former uses the method of vacuumizing to dissolve air under normal pressure or pressure, and then releases microbubbles under negative pressure for air supply floating use; the latter uses the method of forcing air to dissolve in water under pressure, and then suddenly depressurizes to release the dissolved gas from water, adheres to flocs in the form of microbubbles, and floats together.

1.1.1 Although the energy consumption of the vacuum air flotation tank is low, the formation of bubbles and the adhesion between bubbles and flocs are relatively stable; however, the amount of bubbles released is limited; moreover, all equipment components should be sealed in the air flotation tank; the structure of the air flotation tank is complex; it is only suitable for the treatment of wastewater with low pollutant concentration (no more than 300mg / L), so the actual application is not much.

1.1.2 The pressure dissolved air floatation is a commonly used method at home and abroad. There are three basic flow options: full flow dissolved air floatation, partial dissolved air floatation and partial reflux dissolved air floatation.  

1.1.2.1 The whole process dissolved air flotation  The whole process dissolved air flotation is to pressurize all waste water with a water pump, dissolve air in the waste water in the dissolved air tank, and then send the waste water to the air flotation tank through a pressure reducing valve. See Figure 1 for flow chart. Its characteristics are as follows: ① large dissolved air volume increases the contact opportunity between oil particles or suspended particles and bubbles; ② under the same treatment water volume, it is smaller than the air flotation pool required by partial reflux dissolved air flotation. ③ all waste water passes through the pressure pump, and the pressure pump and air dissolving tank required are larger than the other two processes, so the investment and operation power consumption are larger.

1.1.2.2 The partial dissolved air floatation  The partial dissolved air floatation is to take part of the waste water for pressurization and dissolved air, and the rest of the waste water directly enters the air floatation tank and mixes with the dissolved gas waste water in the air floatation tank. Its characteristics are as follows: ① the pressure pump required for the whole process is small, so the power consumption is low; ② the size of the air flotation tank is the same as that of the whole process, but smaller than that of the partial reflux solution.

1.1.2.3 The partial reflux dissolved gas floatation  The partial reflux dissolved gas floatation is to take part of the treated water for reflux, pressurize the return water and dissolve the gas, enter the air floatation tank after decompression, mix and air floatation with the oily wastewater from the flocculation tank. See Figure 2 for the flow chart. Its characteristics are as follows: ① less pressurized water, less power consumption; ② no promotion of emulsification in the process of air flotation; ③less flocculation after the formation of alum,; ④ larger volume of air flotation tank than the first two processes. According to modern air flotation theory, partial reflux pressurized dissolved air flotation can save energy, make full use of flotation (coagulation) agent, and the treatment effect is better than that of full pressurized dissolved air flotation process. At the same time, when the reflux ratio is 50%, the partial reflux (reflux ratio is 50%) pressurized dissolved air flotation process is commonly used at home and abroad.

1.2 According to whether the microbubble sludge layer (bed) in the air flotation tank has filtration effect and different flow patterns of water, it can be divided into early DAF, ordinary DAF and turbulent DAF.

2. Design principal of DAF is generally set in front of biological processing unit and after physical processing unit, and it is usually classified as physical processing unit. If it is set as two-stage flotation, in order to facilitate saving, the first and second stage flotation cells are often arranged in parallel. The first and second stage flotation cells have a liquid level difference of about 500mm to ensure that sewage flows from the first stage flotation cell to the second stage flotation cell, and the lifting pump is canceled to achieve energy saving effect. It is reflected in the vertical layout, that is to say, during design and construction, it is necessary to strictly control the height of the scraper Trailer (plate), the adjustable weir and the top of the slag removal trough, which is very important and is one of the key factors, otherwise it will seriously affect the floatation effect (the foam layer can not be removed by mechanical means). This is the reason why the adjustable effluent weir must be adopted.

About Edon-China Micro Bubble Generator Manufacture

Hello and welcome to Edon pump. We are a manufacturer of micro nano bubble generator which also called gas liquid mixing pump or DAF pump. Since its interception, our company has been researching, developing and adapting our  micro bubble pump to make it suitable for different specialty and new application or compatible to different countries' electricity system. From our factory in Shanghai, we can offer you different models of micro bubble generator for your various applications and standby spare parts.

APPLE JUICE

Apple juice in the press process will bring a lot of impurities in pulp, pectin, starch, plant fiber, microorganisms, bacteria, and other impurities. Thus, it's not easy to produce apple juice concentrate through traditional methods. Due to high sugar content in apple juice, microorganisms and bacteria are easy to breed which makes apple juice fermentation ferment and deteriorate.

High-temperature sterilization will result in product discoloration and loss of flavor. The traditional apple juice filtration methods (diatomaceous earth, framed filter) can not completely retain the impurities, can play a temporary clarification. Under the influence of time, temperature, charge,re-flocculation of dissolved impurities form visible matters, resulting in apple juice turbidity and precipitation.

Macromolecular impurities such as plant fiber, starch, bacteria and other impurities in apple juice are completely intercepted to realize the clarification and impurity removal of apple juice by crossflow microfiltration.

Cross-flow design is adopted to solve the problem of filter clogging and will greatly improve the efficiency of producing juice concentrate.

Advantages:

Filtrate is clear with high transmittance

Return muddy does not happen for a long time

No secondary precipitation produced

No need to add a filter aid

Purely physical operation at room temperature

No chemical reaction

Does not destroy the heat-sensitive substances and affect the fruit flavor easy to use

Reduce labor intensity and production costs

Increase productivity

Small footprint

Sanitary material

CIDER JUICE

Ceramic membrane juice filtration can also be used to produce cider juice, such as apple cider juice.

Process：

cider juice

cider juice

PEAR JUICE

In the fruit juice industry, fruit juice membrane technology is used mainly to clarify the juice by means of ceramic ultrafiltration and microfiltration and to concentrate it by means of nanofiltration and reverse osmosis.

We look at enzyme immobilization techniques to improve filtration performance and operation methods to quantify fouling.

Membrane fouling is a critical issue and inhibits the broader application of membranes in the fruit production industry. Pectin and its derivatives form a gel-like structure over the membrane surface, thereby reducing the permeate flux. In order to degrade pectin, the raw juice is usually subjected to an enzymatic treatment with pectinase, which hydrolyzes pectin and causes its protein complexes to flocculate. The resulting juice has reduced viscosity and much lower pectin content, which is advantageous in the subsequent filtration processes.we have juice filtration machine for sale, welcome to buy.

MUSHROOM JUICE

Mushroom is a common edible fungus in life, rich in protein, 18 kinds of amino acids, vitamins and calcium, iron and other minerals.

However, mushroom's respiration is exuberant after picking. The mushroom quickly becomes browning and changing taste at room temperature and is only for short-term storage. Dried mushrooms are easy to preserve, but the nutritional value is reduced. If you want to store for a long time, you need a higher condition, even in these special circumstances, it is easy to be infected by microorganisms and spoilage, which greatly affects its nutritional value.

mushroom juice

After the mushroom is processed into mushroom juice, it not only reduces the storage cost, but also is convenient to eat, and keeps the original nutrients of mushroom. This is the latest type of fruit and vegetable juice drink.

LUCERNE JUICE

With the development of science and technology, the research on lucerne has been deeply studied, and the nutrition and health function of lucerne have been highly evaluated. Due to rich crude protein cellulose, vitamins, minerals, and complete amino acid composition, it is a worth developing juice in the beverage field.

VEGETABLE JUICE

Membrane separation processes are widely used in the production of beverage materials and the treatment of water for drinking. The technology can be applied to deacidify, debitter, clarify, concentrate and filter vegetable juices.  It plays an important role in the improvement of product quality, the increase in output and the decrease in production cost.

Vegetable juices are used due to convenience. The juices are rich in various minerals, vitamins, and other nutrients. To process the juices and their clarification and/or concentration is required. The membranes are being used for these purposes. These processes are preferred over others because of high efficiency and low temperature.

Membranes and their characteristics have been proved for knowing suitability of membranes for vegetable juices. Membrane separation is low-temperature process in which the organoleptic quality of the juice is almost retained.

How to clarify apple juice?

Ultra filtration method combined with the enzyme treatment method than conventional vegetable production's strength lies in

Cost saving clarifying agent

Clarity increases

Cost saving aid

Reduce cost centrifuge, filter, reaction tanks

Save enzyme amount

Reduce process losses

Stable and reliable quality

Continuous operation

Small footprint

Simple operation & maintenance

Founded in 1997, Jiangsu Jiuwu Hi-Tech Co. Ltd. is one of the most professional and reliable ceramic membrane manufacturer in China. Owning n more than 50 patents regarding ceramic membranes, Jiuwu Hi-Tech supplies a series of high-quality ceramic membrane of microfiltration, ultrafiltration and nanofiltration, ceramic membrane module, membrane testing machine and professional ceramic membrane filtration system for industrial use, including solid-liquid separation in food and beverage, biotechnology, water treatment, chemcial industry, etc.

Jiuwu Hi-Tech is working to provide clients with the best quality ceramic membrane products and services.

More Turnstile Gates Needed

Security management becomes so urgent as lots of office buildings are springing up all over the world with booming commercial activities. With the Belt and Road Initiative unveiled in 2013, China has signed cooperation documents with 126 countries and 29 international organizations, which contributes a lot to the world economic growth. With years of experience, ZOJE Intelligent offers a wide range of customized turnstile gates for different business types, along with the Belt and Road Initiative cooperative countries as well as other areas of the world.

Business Building Turnstile Solution

Speed Gates Can Be Your Perfect Option

In general, speed gates are more popular for business buildings among different types of turnstiles. They feature stylish appearance and high efficiency. Flap barriers are less common than speed gates. Regular staff within the building shall confirm their credentials to get authorized access each time, while visitors will have to register at reception for individual permission for better security management. With years of customization experience, ZOJE is always ready to offer the most suitable building site turnstile gates for different projects with specific needs, like stadium turnstiles, office turnstiles.

Business Building Turnstile Solution

Safe Business Premises

If your office deals with sensitive information or expensive equipment, our speed gate turnstile solution gives you complete access control over employees and visitors.

Our effective turnstile security solutions will give you peace of mind and will always ensure that you have control over your business premises.

Modern Technology You Should Know

As one of the leading manufacturers of turnstile gates in China, we keep up to date by integrating the latest biological recognition technologies, such as fingerprint identification, finger vein or palm print recognition, face and gait recognition, iris or retina recognition and other biological algorithms, all of which will seamlessly work with pedestrian access control system contributing to a safe and efficient business environment. We will secure your building with every cutting-edge technology for your most benefits.

Based in Shenzhen, the innovation center of China, Hong Kong ZOJE Intelligent Technology Co., Ltd was established in 2012. We are access control security turnstile gate suppliers, specializing in turnstile gates technology and turnstile access control security systems ever since the very beginning.

CAS NO: 95481-62-2

The picture of DBE effect: surfactant

Steel coil coating can help maintain the balance of volatilization speed, avoid the defects caused by the film explosion, and over-baking caused by too fast evaporation speed. It can give the film flat appearance, improved toughness and post-processing, and rising hiding power of pigments.

Dibasic ester (DBE solvent) has a special volatility in the paint industry. With the increase of temperatures, its volatilization rate is faster than other solvents, which is, the first half of the volatilization rate is slow and the latter half of the volatilization is fast, which is more conducive to drying.

Container / canned paint can effectively replace the canned and container coatings of isophorone, propylene glycol ether, ethylene glycol ether acetate solvents. The high solubility and low volatility rates can make the coating has a good leveling , DBE solvent can improve the flexibility, adhesion and other important properties of coating.

Automotive coating can be used for a variety of different automotive coatings and different resin systems. It can be used in middle and topcoats to achieve the desired gloss on the surface of the paint film, increasing the fullness of the paint film, adding a small amount of wetting to the formulation, and improving the leveling and relevelling properties.

Enameled wire coating is polyvinyl butyral, polyvinyl formal, polyurethane, polyester, and polyester amide coatings. Solvents made of excellent formulations can completely replace cresol in polyester and polyester amide systems. When these DBE solvents are used, high-solidity and low-twist resins will be produced, bringing a non-corrosive advantage that greatly reduces the user's difficulty in storage.

Due to the long wood paint range and large buffering zone, customers have greater flexibility and selectivity in the solvent formulation and construction conditions, which can help adjust the volatilization rate, improve leveling, prevent white fog, pinholes, and other surface defects.

In the ink industry, replace the high-boiling solvent with high toxicity and a strong odor.

In the resin industry, it has a low viscosity. On the one hand, the viscosity of the resin can be reduced without reducing the molecular weight or the solids content; On the other hand, the solid content can be increased while maintaining the same viscosity. With this feature, high-solidity and low-viscosity resins can be produced.

DBE chemical can be used as an polymer and chemicals intermediate and  can be used as organic synthesis intermediate. Its polymerization produces a wide variety of polyesters and other polymers and it is also a raw material for the production of pharmaceuticals, pesticides, initiators and a series of other chemical products.

 DBE solvent has a very ideal application in cleaning agents, paint strippers, and industrial cleaning.

WELCOME TO VISIT HENAN PROSPER CHEM CO., LTD.

Company profile

HENAN PROSPER CHEMICALS CO., LTD was established in 2000. HENAN PROSPER CHEMICALS CO., LTD is the professional and comprehensive producer and distributor of chemical products in China, Since then, through diversification and expansion, we developed one plant that annual outputs of 60,000 tons of Sulphonated products. We as an approved distributor for Sinopec, HENAN PROSPER CHEMICALS CO., LTD. has grown to become a market leader in the fields of Detergent, Petrochemicals, and Industrial Chemicals.

CAS: 123-42-2

Uses of Diacetone Alcohol (DAA)

DAA is used as a raw material for high boiling point solvents, paint diluents, wood stains, rust removers, and dyes, etc.

DAA is used as a dye raw material and resin solution.

It can be used as a solvent for cellulose acetate and cellulose ester, and celluloid. It can be applied in biochemical researches, electrophoretic analysis and wood preservatives.

Diacetone Alcohol Boiling Point

DAA has the chemical properties of ketones and tertiary alcohols. It will be decomposed when mixed with alkalis or heated to more than 130 ℃, which produces 2 molecules of acetone.

It can be used as a high boiling point organic solvent. It has low viscosity, on which low temperatures have little effect, and is used in cellulose ester paints.

DAA can be used for printing inks and as a solvent and paint stripper for synthetic resin coatings. It can also be used in insecticides, fungicides, wood preservatives, solvents for colorants, and extracting agents for oils and aromatics. It is used as a component in the manufacture of photographic films, rayon, artificial leather, antifreeze, brake oil.

DAA is non-corrosive to gold shavings and can be packaged in iron, mild steel and aluminum containers. It should be stored in a well-ventilated, dry warehouse, away from fire and heat sources.

WELCOME TO VISIT HENAN PROSPER CHEM CO., LTD.

Company profile

HENAN PROSPER CHEMICALS CO., LTD was established in 2000. HENAN PROSPER CHEMICALS CO., LTD is the professional and comprehensive producer and distributor of chemical products in China, Since then, through diversification and expansion, we developed one plant that annual outputs of 60,000 tons of Sulphonated products. We as an approved distributor for Sinopec, HENAN PROSPER CHEMICALS CO., LTD. has grown to become a market leader in the fields of Detergent, Petrochemicals, and Industrial Chemicals.

USE of DCHA Chemical

DCHA Chemical can be used as the vulcanization accelerator of rubber; and also used as the raw material of synthetic fibers, dyes, and gaseous-phase corrosion inhibitor.

It can be used for the manufacture of dyes, softener VS and drugs such as Antiradon, thio-TEPA and solaziquone; it can also be used in medicine, pesticides.

Cyclohexylamine is the intermediate of herbicides "Hexazinone" as well as the intermediate of rubber accelerators, oil additives, and corrosion inhibitors.

DCHA Chemical can be used for the preparation of cyclohexanol, cyclohexanone, caprolactam, cellulose acetate and nylon 6 and the like. Cyclohexylamine itself is a solvent and can be used in resins, paints, fat, and paraffin oils. It can also be used for making desulfurization agent, rubber antioxidant, vulcanization accelerator, chemical auxiliaries of plastics and textile, the treatment agent of boiler feed water, metal corrosion inhibitors, emulsifiers, preservatives, anti-static agents, latex coagulants, oil additives , fungicides, pesticides and dye intermediates. The sulfonate salt of cyclohexylamine can be used as artificial sweeteners for being applied to foods, beverages and pharmaceuticals.

It can be used in organic synthesis, plastic synthesis, also used as a preservative and acid gas absorbent.

It can be used for the production of water treatment chemicals, artificial sweeteners, and the intermediate of rubber processing chemicals and agrochemicals.

It can be used as acidic gas absorbent for organic synthesis.

CAS number: 101-83-7

Dicyclohexylamine(DCHA) is a colorless transparent oily liquid with strong alkaline properties and an irritating ammonia. It is flammable and highly toxic. It is slightly soluble in water and miscible with organic solvents.

1. DCHA is used for organic synthesis, also as insecticide, acid gas absorbent and steel rust inhibitor. It is used as a natural product, organic synthetic extracting agent, and acid gas absorbent. Salts formed by the reaction of DCHA and fatty acids and sulfuric acids have excellent surface activity and are used in the printing and textile industries. Complexes by the reaction of DCHA and metals are used as catalysts for paints and inks. Dicyclohexylamine nitrite is an excellent metal corrosion inhibitor. DCHA is also used for organic synthesis and used as a pesticide, an acid gas absorbent, and a steel rust inhibitor.

2. Properties of DCHA Chemical

DCHA Chemical is a colorless transparent oily liquid with strong alkaline properties and an irritating ammonia. It is flammable and highly toxic. It is slightly soluble in water and miscible with organic solvents.

Storage Precautions DCHA should be stored in a cool and ventilated warehouse. It should be kept away from fire and heat sources. The temperature should not exceed 30°C. The container should be sealed and DCHA Chemical should be separated from oxidants, acids, etc. and never be mixed.  An appropriate variety and quantity of fire equipment should be installed. In storage areas, spill emergency equipment and suitable containment materials should be well-prepared.

DCHA Chemical should be sealed with iron drums and should be stored in a cool, ventilated, dry place away from sources of fire. Loading, unloading, and transportation shall be arranged in accordance with regulations of flammable toxic chemicals. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

WELCOME TO VISIT HENAN PROSPER CHEM CO., LTD.

Company profile

HENAN PROSPER CHEMICALS CO., LTD was established in 2000. HENAN PROSPER CHEMICALS CO., LTD is the professional and comprehensive producer and distributor of chemical products in China, Since then, through diversification and expansion, we developed one plant that annual outputs of 60,000 tons of Sulphonated products. We as an approved distributor for Sinopec, HENAN PROSPER CHEMICALS CO., LTD. has grown to become a market leader in the fields of Detergent, Petrochemicals, and Industrial Chemicals.

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Fiber-To-The-Home (FTTH) is a transmission method of optical fiber communication. It is to connect the optical fiber directly to the user's home (where the user needs it).

This kind of optical fiber communication mode and strategy is also different from FTTN, FTTC, HFC (hybrid fiber coaxial), etc. They all need to rely on traditional metal wires, including twisted pair and coaxial cable, for the "last kilometer" information transmission. So we taking about the advantages and disadvantages of ftth.

The advantages of FTTH are as follows:

First, it is a passive network. From the office end to the user, it can basically be passive;

Second, its bandwidth is relatively wide, and the long-distance is just in line with the large-scale application mode of operators;

Third, because it is the service carried on the optical fiber, there is no much problem;

Fourth, because of its wide bandwidth, the protocols it supports could be more flexible;

Fifthly, with the development of technology, point-to-point, 1.25G and FTTH feature relatively perfect functions.

In the optical access family, there are FTTB (Fiber-To-The-Building), FTTC (Fiber-To-The- Curb), FTTSA (Fiber-To-The-Service Area) and so on.

Connecting the optical fiber directly to the user's home has no limitation on its bandwidth, wavelength and transmission technology. It is suitable for introducing various new services. It is the most ideal transparent service network and the final way of access network development.

Although the development speed of mobile communication is amazing, due to the limited bandwidth, the terminal volume which is unlikely to be too large, the limited display screen and other factors, people still pursue the fixed terminal with relatively superior performance. They want to achieve Fiber-To-The-Home. The charm of Fiber-To-The-Home lies in its huge bandwidth, which is the best solution to the "last mile" bottleneck from the internet backbone to the user's desktop.

With the upgrading of technology, the cost of ftth fiber to the home is greatly reduced, and will soon be equivalent to that of DSL and HFC networks, which makes the practicability of FTTH possible. In addition, FTTH technology is also applied to solve the "last mile" problem in the information superhighway. FTTH + Ethernet is much faster than ADSL and ISDN.

Disadvantages

Based on MAC speed limit mode, the delay time will increase when the broadband runs full.

In terms of speed, FTTH can provide up to 4M uplink and 100M downlink, which are unequal lines. While up and down lines of FTTB is equal and can provide up to 10M.

Predominance of broadband optical access network

In the global range, most telecommunication companies are ADSL-based development of broadband access. However, ADSL is a broadband access technology based on copper wire. Copper is a global strategic resource. With the continuous increase of international copper cable prices (an average annual increase of 20% - 30% in recent years), the line cost of ADSL is higher and higher. But, the raw material of optical fiber is silica which is inexhaustible.

In fact, the current market price of optical fiber is lower than that of common copper wire, and its service life is far longer than the latter. When old cables have to be replaced or new subscriber lines need to be laid, optical fiber is a more reasonable choice, especially in the backbone and even distribution line. Secondly, as active equipment, ADSL electromagnetic interference is hard to avoid and the maintenance cost is higher and higher. As a passive transmission medium, optical fiber can avoid these problems.

As the fiber-optic process of the whole network continues to extend to the user side, the restrictions of end-to-end broadband connection are more and more concentrated in the access section, and the uplink and downlink connection rate of ADSL cannot meet the long-term business needs of high-quality users. Although ADSL2 + and VDSL2 technologies are expected to alleviate this pressure, the continuous substantial increase of their speed and transmission distance is limited, and no essential breakthrough can be expected. Obviously, with the extensive application of optical fiber in the long-distance network, metropolitan area network and even backbone of access network, the logical development trend is to continually extend optical fiber to the distribution line and lead-in line of access network, and finally realize the Fiber-To-The-Home. The key question is: how fast is the promotion speed? It depends on many factors, including market demand, competition demand, application stimulation, technology progress, cost reduction and development of supporting operation and maintenance system.

UnitekFiber Solution is a group company which engaged in R&D, manufacturing and marketing of fiber optical products and accessories.Providing professional products and services of fiber Indoor/outdoor cables, Fiber cable management, high density datacom cabling, Fiber optical connectivity and PLC splitter and so on .Our products and solutions are widely applied in 4G/5G, Data Center and Cloud Computing industry etc.

With more than 10 years experience and development, UnitekFiber Solution become the industry-leading fiber optic accessories suppliers which supported the main domestic market in the South and a big occupation in overseas market.Our key value is offering the best quality and service to the customers around the world.

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The power transformer is an electromagnetic component. It is static electrical equipment that transforms alternating current and is widely used in almost all electronic products. It is used to change the power generated by the power station to high voltage and reduce the loss during transmission, so as to facilitate long-distance power transmission.

The function of the power transformer:

The functions of the power transformer can be divided into the following three main functions: voltage conversion, power transmission, and insulation isolation.

Principle of power transformer:

The principle of the transformer is the electromagnetic induction to transmit signals from one circuit to another circuit; the coil connected to the power supply, which receives AC power, called the primary winding; the coil connected to the load, which sends AC power, is called the secondary winding.

Structure of power transformer:

The structure of the transformer is composed of iron core and winding. The main magnetic circuit of the transformer is composed of an iron core, and the iron core is divided into two parts of the iron core column and the horizontal piece. The circuit part of the transformer is formed by winding the enameled original wire or double-wire insulated flat wire.

Classification of power transformers:

According to usage: power transformer; special transformer; instrument transformer; test transformer.

Divided by winding form: double winding transformer; three winding transformer; autotransformer.

According to the form of iron core: core transformer; bright transformer; amorphous alloy transformer.

Divided by the number of phases: single-phase power transformer; three-phase power transformer.

Divided by cooling method: dry-type power transformer; oil-immersed power transformer.

According to the size of the transmission power: 10KVA above is high power; 10KVA~0.5KVA is medium power; 0.5KVA~25VA is low power; 25VA below is micropower.

Purpose of power transformer:

The power transformer can be stepped up or stepped down. When implementing the long-distance transmission of power, the power transformer is used to increase the voltage to the point of use and then reduce the voltage to the required voltage amplitude. The iron core in the transformer can produce an alternating magnetic field.

As a cross-border B2B platform, ESGCC Global has many related products. Here are some examples:

500kV Power Transformer,120MVA-720MVA, Three-Phase, Double Windings Off-circuit Tap-changing Power Transformer

35kV Power Transformer/KEMA certificate/LEEEC

If you want to know more information, you can visit https://g.esgcc.com.cn/products/AC-Transformer.html

ESGCC Global, built by State Grid Electronic Commerce Co., Ltd., is the cross-border B2B digital trading platform for power industry. The platform has gathered nearly 80,000 electrical equipment manufacturers to provide over 170,000 cost-effective electrical equipment products with international quality selection, helping global users of power industry to achieve smart online procurement with one-stop trading service.