1) vacuum (type) fuel feed
真空(式)供油
2) vacuum heating system
真空式供暖系统
3) vacuum carburettor
真空式化油器
4) air oil supply
航空供油
5) low vacuum heating
低真空供热
1.
New method of energy conservation and environmental protection ──Study on small steam turbine generator for low vacuum heating;
节能环保新举措──浅谈小型凝汽式汽轮发电机组低真空供热
2.
The paper discusses some problems on small steam turbine generator unit for low vacuum heating.
着重讨论了小型凝汽式汽轮发电机组低真空供热及运行的几个问题。
3.
Through analyzing the specific plan of extraction condensing turbine in low vacuum heat supply network transform in the Baotou third power plant, from the respect of the heat network transform, the authon put forward several questions that should be considered , thus guarantee the improvement of the comprehensive economic benefits in the course of transforming in low vacuum heating.
本文通过对包头三电厂抽汽凝汽式汽轮机在低真空供热热网改造中的具体方案分析,从热网改造方面,提出了应考虑的几方面问题,从而保证在低真空供热改造过程中综合经济效益的提高。
6) low vacuum heat supply
低真空供热
1.
Safe and Economic Analyses of the Low Vacuum Heat Supply of CC12 Type Turbines;
CC12型汽轮机低真空供热的安全经济性分析
2.
It introduces the destination and meaning of the vacuum heat supply rebuilding to the condenser,represents the technology progress and the operating attention programs of low vacuum heat supply rebuilding of the condenser of Huineng thermoelectricity plant and makes the economical benefit analysis,and this can supply reference to the low vacuum heat supply rebuilding of same kind of equipment.
介绍了凝汽式汽轮机低真空供热改造的目的和意义,阐述了惠能热电厂凝汽式汽轮机低真空供热改造的工艺流程及运行注意事项,并进行了经济效益分析,可为同类机组低真空供热改造提供参考。
补充资料：活塞式无油干式机械真空泵原理及简介
活塞式无油干式机械真空泵技术要求不太复杂，容易制造。
该泵的外形呈扁方形，是由四个阶梯形活塞及四个阶梯形气缸组成。与电机直联的轴通过四根连杆带动四个活塞。活塞的背面空间由次级活塞抽气，以减少泄漏和降低极限压力。每个气缸都有进气阀与排气阀。四个活塞组成三个压缩级，为了增加抽速，两个活塞是并联的，为了便于泵在大气压力下的启动，设置了辅助排气阀，当活塞的排气压力高于大气压力时，有一部分气体通过阀排入大气，当其排气压力低于大气压力时，则排出气体依次进入第三个、第四个气缸压缩后排出泵外。泵的压缩比可达到 105 ，泵的极限压力可达 1.3Pa 。泵气缸的内表面衬有聚合材料，以降低摩擦系数与磨损。这种泵的功率消耗低，散热条件较好，不需要冷却水。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条