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1)  vapor transmission
透汽
1.
Study on knitted fabrics with good vapor transmission and wet permeability comfortable functions;
导湿透汽舒适功能针织物研究
2.
Warmth retention, wet permeability and vapor transmission functions of bamboo-carbon modified polyester knitted fabric are researched in this paper.
研究了竹炭改性涤纶针织物的保暖、导湿、透汽功能,结果显示由于碳和金属碳化物的蓄热作用,织物的保暖率比较高;由于纤维中的炭粉表面积大,孔隙多,具有强吸附能力,织物具有较强的导湿、吸湿功能,透汽功能一般,但干爽舒适性好。
2)  pervaporation [pə,veipə'reiʃən]
渗透汽化
1.
Mass transfer in pervaporation during removal of ethanol from water with a poly(dimethylsiloxane) (PDMS) composite membrane;
PDMS复合膜水中脱除乙醇渗透汽化传质过程分析
2.
Progress in pervaporation for biofuel ethanol;
透汽化在生物燃料乙醇制备中的研究进展
3.
Influence of simulated ethanol fermentation components on pervaporation performance of PDMS/ceramic composite membranes;
模拟的发酵液组分对聚二甲基硅氧烷/陶瓷复合膜渗透汽化性能的影响
3)  water vapor permeability
透水汽性
1.
The results indicated that the water vapor permeability was improved by 27% by formic acid hydrolysis,the water vapor permeability was improved by 31% by triethanolamine hydrolysis,the water vapor permeability was improved by 32% by protease hydrolysis,the water vapor permeability was improved by 30% by pancreatic hyd.
研究了甲酸水解、三乙醇胺水解、蛋白酶水解、胰酶水解、蛋白质材料填充等改性方法对超细纤维合成革透水汽性能的影响。
2.
The air permeability,water vapor permeability,and softness of samples from different positions and directions of goatskin and sheepskin clothing leather are tested,in order to provide scientific data for standardization and rational use of leather in leather goods factories,as well as to provide guidance for adjustments and regulations on tannery technology.
对羊皮服装革不同部位试样的透气性、透水汽性和柔软度进行了测试研究,目的在于为以后的标准工作和皮件厂合理使用皮革提供科学数据,也为制革工艺的调整和控制提供指导。
4)  vapor permeation
蒸汽渗透
1.
The dehydration of propylene vapor mixtures through PVA/PS hollow fiber composite membranes by vapor permeation;
PVA/PS中空纤维复合膜用于脱除丙烯中微量水分的蒸汽渗透性能研究
2.
Pervaporation(PV) or vapor permeation(VP) process was proved to be effective for removing the pollutant from industrial emission, dehydrating organic solvent and separating organic/organic mixtures.
在渗透汽化(PV)和蒸汽渗透(VP)膜分离过程,利用高分子膜材料对原料中不同组分的溶解度与扩散系数不同实现混合物分离。
3.
The effects of deacetylation degree of CS, the concentration of CS, various crosslinking agent and their usage, the temperature of heat treatment and base membrane which might affect performances of composite membranes on performance of vapor permeation of the membrane were also studied.
采用涂敷法制备了壳聚糖(CS)/聚砜(PS)中空纤维复合膜,考察了气相丙烯中脱除微量水分的蒸汽渗透性能。
5)  water vapor permeability
透汽性
1.
The experimental results showed the air and water vapor permeability of polyurethane membranes are improved.
结果表明,白木粉的加入能改善聚氨酯膜的透气和透汽性能。
2.
These blend films with different powder contents were investigated on the change of their surface morphology,water absorption,water vapor permeability,water contact angle,mechanical properties and IR spectrums.
研究共混膜中非水溶性丝素粉体质量分数不同时共混膜的表面形貌、吸水性、透汽性、水接触角及力学性能和红外光谱图的变化。
3.
A water vapor permeable polyethylene-based PU were used to modified polyester-based polyurethane(the common industrial polyurethane PU8080),and the effects of the content of the polyethylene-based PU and the chain length of polyethylene on contact angle,water vapor permeability,water swelling and mechanical properties of the blended PU film were investigated.
综合考虑聚酯型和聚醚型聚氨酯的特点,用聚乙二醇(PEG)为亲水链段合成的聚醚型聚氨酯来改性聚酯型聚氨酯8080(一种合成革行业广泛使用的聚酯型聚氨酯),通过同系聚合物的共溶剂共混改性法,制备出了一种透汽性和机械性能均较优良的复合型聚氨酯。
6)  steam turbine
蒸汽透平
1.
Application of air cooled condenser in condensing steam turbine in petrochemical units
凝汽式蒸汽透平空气冷凝器的应用
2.
Operation for steam turbine of CO 2 Compressor set under the non-design conditions was analyzed and compared, the reason of high consumption of turbine steam was found, improvement measures were presented and the improved effect was summarized.
对二氧化碳机组蒸汽透平的非设计工况运行进行了分析和对比 ,找出了透平蒸汽消耗高的原因 ,提出了改进措施 ,总结了改进效果。
3.
Numerical investigations about the influence of changing stator solidity on the steam turbine stage performance are presented.
数值研究了蒸汽透平静叶节距变化对级性能影响。
补充资料:抽汽式汽轮机
      由汽轮机中间级抽出一部分蒸汽供给用户,即在发电的同时还供热的汽轮机。根据用户需要可以设计成一次调节抽汽式或二次调节抽汽式。
  
  一次调节抽汽式汽轮机  又称单抽汽式汽轮机。由高压部分和低压部分组成,相当于一台背压式汽轮机与一台凝汽式汽轮机的组合。新汽进入高压部分作功,膨胀至一定压力后分为二股,一股抽出供给热用户,一股进入低压部分继续膨胀作功,最后排入凝汽器。抽汽压力设计值根据热用户需要确定,并由调压器控制,以维持抽汽压力稳定。单抽汽式汽轮机的功率为高、低压部分所生产功率之和,由进汽量和流经低压部分蒸汽量所决定。调节进汽量可以得到不同的功率。因此,在一定范围内,可同时满足热、电负荷需要。单抽汽式汽轮机在供热抽汽量为零时,相当于一台凝汽式汽轮机;若将进入高压缸的蒸汽全部抽出供给热用户,则相当于一台背压式汽轮机。但实际运行中,为了冷却低压缸,带走由于鼓风摩擦损失所产生的热量,必须有一定量的蒸汽流过低压部分进入凝汽器,所需最小流量约为低压缸设计流量的10%。单抽汽式汽轮机的工况如图所示,它表示出新汽量(Do)、抽汽量(Ce)、电功率(Ni)三者之间的关系;图中Do表示凝汽量,ohh线为抽汽量为零时的凝汽工况线,cdd 线为抽汽量等于新汽量时的背压工况线,在以上两线之间为等抽汽量与等凝汽量工况线,它表示在不同抽汽量下与不同凝汽量下全机电功率与蒸汽流量的关系。在最大抽汽量下汽轮发电机组的最大电功率如图中e点所示;图中如已知Do、De、Do和Ni4个量中的任何两个量,可求得另外两个量。
  
  二次调节抽汽式汽轮机  又称双抽汽式汽轮机。可以同时满足不同参数的热负荷。整个汽轮机分为高、中、低压 3部分。新汽进入高压部分作功,膨胀到一定压力,抽出一部分蒸汽供给热用户;另一部分进入中压部分继续膨胀作功后,再抽出一部分供暖,其余蒸汽经过低压部分排入凝汽器。
  
  双抽汽式汽轮机的工况图是按照一定的典型系统和额定参数绘制的。若汽轮机运行条件不同于绘制工况时,应进行适当修正。调节抽汽式汽轮机各缸均单独设置配汽机构,分别控制各缸进汽量。中、低压缸配汽机构有调节阀和旋转隔板两种形式。功率较小的抽汽机组采用旋转隔板形式有利于设计成单缸结构;高压缸则普遍采用喷嘴调节方式,调节级多数为双列级,以保证有足够大的通流能力。
  
  双抽汽式汽轮机在高、低压缸流量均接近设计值时具有较高的发电经济性。由于热负荷的变化,有时流经各缸的流量差别很大,在某些工况下发电经济性较低。因此,调节抽汽式汽轮机应根据主要热负荷情况进行设计,合理分配各缸流量,以保证长期运行中有较高经济性。合理选定抽汽压力对机组经济性有明显影响,在满足热用户前提下,应尽量降低抽汽压力。早期生产的供暖抽汽机组,抽汽压力为0.12~0.25兆帕,近年已将下限降为0.07兆帕。
  

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