1) low vacuum
低真空
1.
Economic analysis on heat supply at low vacuum operation of condenser
凝汽器低真空供热经济性分析
2.
In this paper the advantages of pulse low vacuum chemical heat treatment,classification,structure characteristics,Usage,process characteristics,penetrating agents and application prospect of such furnaces have been discussed.
介绍了脉冲低真空化学热处理的优点 ,脉冲低真空化学热处理炉的分类、结构特点、用途、工艺特点、渗剂及应用前
3.
This paper introduces the operating status of low vacuum system,analyzes the problems existed in it,proposes its reforming scheme in light of the characters of low-vacuum heating system,and points out the conditions to fulfill low vacuum,in order to make the system operate steadily and achieve well effect.
介绍了低真空系统的运行状况,并就低真空系统目前存在的问题进行了分析,针对低真空供热系统的特点,提出了低真空系统的改造实施方案,同时指出了实现低真空必须具备的条件,以使其运行稳定,达到很好的效果。
2) lower vacuum
低真空
1.
98 turbine of Chengde Heating Power Plant,this paper analyzed the heat economy performance in lower vacuum.
98机组低真空供热改造前后各项热经济指标的对比 ,分析了低真空供热的热经济
2.
98 turbine of Chengde heat and power plant for heat in lower vacuum.
98机组低真空供热的技术改造情况。
3) vacuum cryogenic
真空低温
1.
Design of large-aperture lightweight elliptical plane reflecting mirror used in the vacuum cryogenic environment;
真空低温环境用大口径轻量化椭圆平反镜设计
4) low vacuum
真空低
1.
1 heat power plant of Taiyuan City occurring at the same time,this paper analyzes on the reasons ofthe low vacuum of the condenser,and advances some measures for solving the lowvacuum of the condenser.
针对太原第一热电厂六期扩建工程安装的两台300MW汽轮机组同时出现凝汽器真空低的问题,分析了引起凝汽器真空低的原因,提出了解决凝汽器真空低问题的措施。
2.
Aiming at the problem of low vacuum in No.
针对神头二电厂1号机组凝汽器真空低的问题,根据现场经验和对运行参数的理论分析,找出了导致凝汽器真空降低的主要因素,提出了相应的解决和改进措施,实施后效果显著,确保了机组经济、安全和稳定运行,同时为同类机组解决真空低问题提供了方法。
3.
Low vacuum is a general problem existing in homemade 300 MW turbine units that have been put into operation recently in Tieling Power Plant.
通过大量的调查研究 ,分析了真空低的原因及危害 ,并提出整改措施 ,提高了真空
5) LV(low vacuum)
LV(低真空)
6) low pressure vacuum
低压真空
1.
After the introduction of history of development of low pressure vacuum contactors, and the comparison of some products from some major producers, the writer analyses the development trend of low pressure vacuum contactors.
通过对低压真空接触器发展历史的介绍 ,以及对一些主要国家 (厂家 )系列产品的性能比较 ,分析了低压真空接触器的发展趋
补充资料：低真空保护
低真空保护
low vacuum trip
d一zhenkong匕oohu低真空保护(low vaeuum trip)防止汽轮机因真空过低造成损伤的装置。汽轮机运行时，如真空达不到额定值，可使热效率降低，如真空继续降低，则应减负荷;若不能及时检查消除真空下降的起因，真空恶化到某种程度可能造成汽轮机末级叶片及凝汽器铜管过热损伤。随着汽轮机容量的增大，末级叶片长度亦增加，真空低时蒸汽比体积急剧减小，通过长叶片的汽流紊乱，使长叶片动应力大幅度上升，甚至导致叶片断裂，因此大机组要求更为严格的低真空保护。 低真空保护装置的感受元件为波纹盒真空计，或其他型式的测量真空的一次仪表。利用这些一次仪表，如波纹盒的变形接通电气触点实现低真空报警乃至紧急停机。
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