This paper mainly introduces the application of the double Differential temperature control system in the Propylene Distillation tower of the Gas Distillation unit.
本文主要介绍双温差控制系统在气体分馏装置丙烯精馏塔控制上的应用。
It is consisted of temperature acquisition, temperature setting, temperature display, differential amplifier, PID control circuit, limited circuit and thermoelectric cooler (TEC) Driver.
它包括了温度采集、温度设置、温度显示、差分放大电路、PID控制电路、限幅电路、半导体制冷器(TEC)驱动电路。
On the basis of analysis of the temperature control features of the differential thermal balance, this paper presents two control methods: digital PID and FC digital PID.
在分析差热天平温度控制特点的基础上，提出了用数字PID和模糊数字PID复合控制算法，进行温度控制的两种方法。
The control method of self-organized and differential front PID has the advantages of saving electir energy, the effect of dust collecting, wind mixing and spraying for temperature reducing.
提出了为节约电能，提高除尘效果，混风降温、喷雾降温的自组织微分先行PID控制思想及策略。
Base on the three-dimensional heat conduction differential equation, the discrete formulation of three-dimensional unsteady temperature field under fire is established by the volume-control method.
基于三维非稳态导热微分方程，用控制容积法建立了火灾环境下钢筋混凝土三维非稳态温度场的离散格式。
Base on the three-dimensional heat conduction differential equation, the discrete formulation of three-dimensional unsteady temperature field under fire is established by the volume-control method.
基于三维非稳态导热微分方程，用控制容积法建立了火灾环境下钢筋混凝土三维非稳态温度场的离散格式。
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