除氧

H Heater of feed water heat and deaerator

h回热水加热器与除氧器

Performance comparison of the condensed water system before and after revolution is analyzed,The papers also introduces the different control methods for Automatic control of deaerator water level and condenser water level.

文章研究对比改造前后的凝结水系统特点，介绍除氧器水位自动控制和凝结器水位自动控制不同方案，并对各方案进行分析对比，介绍了方案的参数调整方法。

The deaerator tank is one of the main auxiliaries. The dynamic properties of the deaerator tank will directly affect the economy and safety of the operation in the once-through boiler units when it starts up.

研究除氧器水箱在直流锅炉启动时的动态特性对提高机组运行的可靠性和经济性具有重要的实际意义，因此成为上海市产学研难题攻关项目之一。

The degression of its control performance will cause the deterioration of the feedwater, in the worst case,will endanger the whole system.

除氧器系统是核电站二回路的重要组成部分，它的控制性能的下降将直接导致给水品质恶化、流量波动，严重时会危及系统安全。

Activated MT desiccants has the performance of deliquescent, deoxidized, fresh protection, anticorrosive, has long-term efficient. So it is a kind of healthy, green and environmental products. The usefulness is as same as silica gel desiccant, and it is the upgraded products for silica gel desiccant.

MT纯天然活性干燥剂具除湿、除氧、保鲜、防蚀、长效功能，是一种绿色环保产品，用途基本同硅胶干燥剂，是硅胶干燥剂的升级换代产品。

Under the condition of Gasi Oilfield, the formulation of motive polymer gel were as follows: 1500mg/L polymer HPAM + 400 mg/L organic phenolic aldehyde + 150mg/L stabilizer and 80 mg/L deoxidant.

在尕斯油田油藏条件下，研制出的可动凝胶配方体系为：1500mg/L聚合物HPAM+400mg/L有机酚醛+120mg/L稳定剂+80mg/L除氧剂。

So the proposed method in this dissertation not only meet the requirements for fossil-fuel unit set in GB/T 12145-1999, but also can effectively restrain condensate and feed water system corrosion. Thereby the proposed method can reduce the loss by corrosion's leading accident, lower Fe content in boiler feed water, slow the boiler's scaling speed, delay boiler's chemical cleaning interval, effectively enhance unit's reliability, usability and using life and solve the problem of poisonous chemical deoxidant. So the proposed method can economize substantial expense for power plant.

所以，本文所提出的汽包炉有限氧化性水化学工况不但能满足GB/T12145-1999中对火力发电机组及蒸汽动力设备的要求，而且可有效抑制凝结水和给水系统的腐蚀，减少因这些部位腐蚀损坏而引发的事故停机损失，降低锅炉给水中的金属含量，减轻炉内的结垢速度，延长锅炉的酸洗间隔，有效提高机组的可靠性、可用率和使用寿命，同时也解决了有毒化学除氧剂的使用问题，为电厂节省大笔运行费用。

This dissertation presents the research on intelligent control and its application in deoxidizing system to improve the robustness and stability of deoxidization.

因此，智能控制在除氧系统中的应用研究具有重要的理论意义和实用价值。

Obviously, Such kind of tube bundle layout can reduce condensate supercooling and satisfy the demand of good deoxidization.

显然，这种形式的管束布置能减少凝结水过冷，满足良好除氧性能的要求。

When the oxygen content of condensation water is in accordance with the deoxidization demand, the steam source can be removed.

当凝结水的含氧量符合除氧要求时，可以切除汽源。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。