低加为工业名词,是低压加热器的简称.为一种换热器.是火电厂生产流程中的重要部件,用于实现回热循环(利用汽轮机抽汽加热给水).一般凝汽器先对给水进行加热，加热后的给水进入低加（低压加热器），后再进入高加（高压加热器），之后给水经过给水泵送入锅炉，产生蒸汽推动汽轮机转动。
...文天下网 关 键 词：汽轮机冷端系统；胶球；低加；改造；应用 [gap=979]KEY WORDS: Steam turbine cold end.，Rubber ball.，Low plus.，Transformation.
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讨论了内置单、双低加不同设计结构与凝汽器喉部汽阻以及喉部流动状态的关系。
The relation between different design structure of single and double low-pressure heaters with flow resistance of the condenser throat and flowing stage in the throat was discussed.
采用该技术后，低加管板的生产周期比原来至少缩短一半，成本至少降低三分之二。
After adopting this technique, the production period of tube plate for low-pressure heater can at least shorten half comparing with the former, meanwhile the cost can at least decrease two thirds.
从加低斯起行，安营在何珥山以东地的边界。
They left Kadesh and camped at Mount Hor, on the border of Edom.
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