This paper expounds the significance of electrical heating in gathering heavy oil, and presents two methods of improving the efficiency of electrical heating: heating with special cable made of nonlinear resistivity material and improving electrical frequency.
阐述稠油采集电加热的重要意义 ,提出了电阻率非线性特种电缆和升高电加热频率两种提高稠油采集电加热效率的方法 ,并运用绝缘双极型晶体管 (IGBT)和非晶态变压器等研制成功 10 0kVA 2 0 0 0Hz特种变频器 ,实施了一种高效电加热方法 ,取得了国内最佳节能效
Such shortcomings as shallow hardened layer,easy overheating and burning of sharp angle and longitudinal crack caused by ordinary high frequency quenching have been satisfactorily overcome by the low-power high frequency heating process.
采用低功率高频加热方法圆满地解决了通常高频表面加热淬火时易出现硬化层较浅、尖角易过热或过烧、易引发表面纵向裂纹等不足之处。
An optimized algorithm combining the fuzzy control with the PID control has been put forward,realizing a good control of the temperature system in the high frequency heating equipment.
提出一种模糊控制与PID控制相结合的优化算法,实现了对高频加热设备温度系统的良好控制。