The system not only meets heating variable flow system for operating regulation, but also improves the heating system efficiency of heating system operation greatly.
系统在满足供热变流量系统运行调节的同时，极大的提高了供热系统运行的热效率；
A study on the structure, main devices and working principle of a variable differential calorimeter used for metered heating is made.
对一种用于计量供暖的变差式热量表的结构及主要装置、工作原理进行了研究。
Based on an analysis on the variable flow operation regulation of heating systems, puts forward variable temperature difference control and control scheme.
在分析供热系统变流量运行调节的基础上，提出了变温差控制并给出了控制方案。
Secondly, the paper designs and realizes the two level variable frequency heating power supply with line of 380V.
随后，本文给出了380V电源供电的二电平变频加热电源的主电路和控制电路的设计与实现。
The results show that oil in reservoir under heating can produce organic acids, but the yields are variable under different conditions.
实验表明，储集层中的原油在热作用下能产生有机酸，但不同条件下，生成的量有所不同。
The variable flow heating system is quite different from the constant flow heating system. So the relative control strategy for the heating network should be changed.
用户成为用热的主体，热网由以往的定流量运行变为变流量运行，热网特性与定流量热网特性完全不同，相应的热网控制策略也要发生变化。
The cookers can be equipped with variable speed agitator drive systems (jacket heating) and a PLC system to control the cheese temperature throughout the cook cycle.
奶酪制造机可配备不同速度搅拌器驱动系统(套式加热)和PLC系统，以在烹饪循环过程中控制奶酪温度。
In this paper, a temperature control system for electrical heating furnace, using variable sampling period and variable structure is proposed.
本文提出一种采用变采样周期、变结构的电阻炉温度控制系统。
The invention specifically relates to a device for generating hot water, boiling water and vapor by intermediate frequency and variable frequency induction heating metal pipes.
具体 是一种中频、变频感应加热金属管产生热水、开水、蒸汽的装置。
The invention specifically relates to a device for generating hot water, boiling water and vapor by intermediate frequency and variable frequency induction heating metal pipes.
具体 是一种中频、变频感应加热金属管产生热水、开水、蒸汽的装置。
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