為了降低燃煤爐鼓風(fēng)機(jī)的用電率、減少起動(dòng)電流、提高功率因數(shù)、改善司爐工工作強(qiáng)度，提出了將變頻器用在燃煤爐鼓風(fēng)機(jī)中。與傳統(tǒng)的燃煤爐鼓風(fēng)機(jī)系統(tǒng)相比較，該系統(tǒng)利用變頻器進(jìn)行流量（風(fēng)量）控制時(shí)，可節(jié)約大量電能。通過詳細(xì)分析壓力H-流量Q曲線，得出變頻調(diào)速后風(fēng)機(jī)所需功率明顯減少。同時(shí)，變頻器的軟啟動(dòng)功能和平滑調(diào)速的特點(diǎn)可實(shí)現(xiàn)對系統(tǒng)的平穩(wěn)調(diào)節(jié)，使系統(tǒng)工作狀態(tài)穩(wěn)定，延長鍋爐各部件的使用壽命。最后通過實(shí)際數(shù)據(jù)可知使用變頻器后的燃煤爐鼓風(fēng)機(jī)是節(jié)能的。

Abstract:

?In order to lower the power consumption rate of coal-fired furnace blower， to reduce the starting current， to increase the power factor， and to improve the fireman?蒺s working intensity， frequency converter was proposed to be used in coal-fired furnace blower. Compared to the traditional coal-fired furnace blower system，this system used converter to control the flow（air volume）， which could save a lot of power. Through a detailed analysis of the pressure H-flow Q curve， it is clear that after the frequency conversion， the required power of blower is reduced. Meanwhile， the soft-start function of the converter and the feature of smooth speed governing could realized the smooth adjustment of the system，which made the system worked stable and extended the service life of various components of the boiler. Finally， the practice data shows it is energy-efficient to use the frequency converter in coal-fired furnace blower.