High frequency energy-saving oxidation power supply high frequency selection methods and requirement
Aluminum oxide power who is general for 18 to 24 v output voltage.
Choose high frequency energy-saving oxidation power supply has three requirements:
First, to meet the requirements of the anodic oxidation process specification, including the power of the power size, waveform index, current voltage adjustable range, etc.; Hao into power is customizable 1000 kw, the waveform of square wave, current voltage range adjustable!
Second, is the reliability of power supply itself, this line is mainly refers to the rationality of the structure, security and the characteristic, cooling mode, etc.; Air cooling and water cooling, avoid is cold and other forms of cooling oil, because of the use and maintenance is very complicated.
Third, we should consider the price of the price. 1, quality. 2, pre-market after-sales service. 3, the price.
As monomer oxidation groove design yield increasing, accordingly oxidation power of the output current is also designed to be more and more big, the current domestic single output reached 28 ka. Traditional oxidation air cooled power due to the poor efficiency of the cooling effect, low reliability, huge noise, short service life, its application is limited by a lot of, also can't satisfy the requirement of the oxidation power supply is more and more large power output, for the first time, we in the high-power aluminum surface treatment power with the method of new fully sealed water-cooling, has obtained the good application effect. In a variety of factors effecting the reliability of device, heat dissipation is one of the most important, especially in high power rectifier device, the heat generated by the high power semiconductor devices to work, will cause the chip temperature rise, if there is no proper cooling measures, can make the temperature of the chip over the allowed maximum junction temperature, which leads to the deterioration of the performance of that damage. New fully sealed water-cooled aluminum oxide is a kind of water cooling methods used by power supply, the oxidation of the thyristor power supply equipment, diode, rectifier transformer, bus bus are water cooling mode, thus build the full closed circulating water cooling system. Due to the circulating water is not direct contact with the atmosphere, its heat transfer is generally done by water - water heat exchange system, avoids installed inside the equipment cooling fan of power loss, and also to prevent the equipment within the components by corrosive gas corrosion, due to air exchange device can ensure the long-term stable to run. Where the conditions are right, the oxidation power of cooling water can also with the plant cooling water system of unified design, fully consider the recycle and utilization of energy.
Oxidation tank with one power supply generally centralized power supply, the oxidation power installation is placed in the groove of one side, and then separately from the oxidation of output power from oxidation by LvPai or cable slot at both ends. So, near the end of the trough power supply connection cable or LvPai length is relatively short, and away from the groove end of the power cable or LvPai needs across the whole length of a tub, generally the length between 10 to 20 meters, two sets of oxidation power installed on both ends of slot, nominal capacity and actual output of each power supply are exactly the same, the design of the automatic control system, guarantee the output power of synchronization and consistency, thereby reducing the conductive connection and voltage drop, which can realize the production of more energy efficient. Current distribution is more homogeneous oxidation groove, effectively improve the quality of oxide film.
Selective oxidation power supply, the rated voltage is unfavorable and exorbitant, considering factors such as bus transmission losses and power grid voltage drop, general shall choose 115% of the maximum working tank pressure. Aluminum oxide power who is general for 18 to 24 v output voltage.