Pressure transducer in the high-temperature fan power saving effect is remarkable - high voltage inv

Modern Power Electronic Technology and computer control technology is developing rapidly, promoted Electric Transmission of the technological revolution. AC replaced DC speed governor, replacing analog control computer numerical control has become a trend. Exchange Motor Frequency is the power of today's economy, improve the production process, improve product quality, and to improve the operating environment of a major means. Frequency of its high efficiency, high power factor, and excellent speed control and braking performance, and many other advantages Kai was recognized at home and abroad to speed the most promising way.

Pressure AC Variable Speed 90 is the 20th century the rapid development of a new type of electric drive speed control technology, mainly used in AC motor VVVF, its technical and performance is far better than previously used in speed means (such as string level speed, fluid coupling speed, rotor speed water resistance, etc.). High pressure Inverter Its remarkable energy efficiency, high speed precision, wide speed range, perfect protection and convenient communication, has been recognized by the majority of users, enterprises now have become the preferred way of electrical energy conservation program. But after the year 2000, as foreign brands was high voltage inverter is monopoly, and most expensive, so cement users by using high pressure transducer is not much. Domestic high-voltage frequency conversion technology with the maturity, beginning in 2005, SSG product line in all new high-power blower type equipment used high-pressure transducer, while the original production line of high-power blower type equipment, and fully implemented transformation of high-voltage inverter, a total of nearly as many units and achieved good economic and social benefits.

The original system through a statistical, in the production process, the fan baffle opening mostly in about 80% Saving Larger space, we decided to transform the original system frequency, the air pressure control regulator from the fluid coupling to transducer adjustment: the abolition of liquid power coupler, the motor with fluid coupling with a connecting shaft between the replace the fluid coupling connected by inverter speed motor itself, and finally to adjust the kiln pre-heater (high temperature fan population) of the pressure conditions required value; inverter device access fan side of the high voltage switch and the proposed transformation between motor and inverter control access to the original DCS System. Motor, high voltage circuit still use the original equipment. In order to fully ensure the reliability of the system, install the inverter frequency bypass device, to retain the original pipes on the baffle (valve). Thus, when the inverter fails, the motor is switched to run under-frequency condition, still used for air volume control damper.

Cement clinker production line by fans and other high-power high-temperature high-pressure fan frequency technological transformation, before making a decision to fully understand the production process and operation, to understand wind, air pressure adjustment means, do all kinds of transformation of the former process parameters (Taiwan, wind, air pressure, etc.), equipment parameters (valve opening, operating current, etc.) and statistical work, to estimate the effect of energy conservation, technology development programs provide the basic data. Understand the situation and characteristics of the running load, determine the selection of the inverter. Cement clinker production line for high-temperature fan equipment, the proposed use voltage source inverter, high a high structure, can be exempted from export boost Transformer ; The capacity of choice, may be appropriate amplification level. As the dust of cement industry relatively large ventilation window-specific filters need frequent cleaning of the cotton filter, it is proposed that the inverter cooling water using the wind a way, this can significantly reduce indoor and outdoor air circulation, can guarantee room clean air, but also to ensure the required operating temperature transducer. Practice has shown that bypass frequency converter needs to run to get, can remove the bypass device to save power room space, less investment, thus further removing the valve pipe bracket, decrease the piping resistance. Frequency converter, the system is reliable, eliminating hydraulic coupling speed, eliminating the mechanical, hydraulic high failure rate of defects, run rate, lower maintenance costs; motor in vibration and the noise decreased; motor without long-term high-speed operation, a significant decline in operating current, power-saving effect is remarkable.

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