Numerical analysis of temperature and stress field in valve housing of super critical steam turbine;
超临界汽轮机阀壳的温度场和应力场计算分析
Based on the FEM,the calculation and analysis were performed for the transient temperature fields and stress fields of the intermediate pressure main steam valve housing under various operating conditions including cold startup,shutdown,strong hot startup,limit hot startup and accidental condition in 200MW unit in power station.
采用有限元方法(FEM),计算分析了电站200MW汽轮机中压主汽阀阀壳在冷启、停机、强热启动、极热启动以及事故等工况下的温度场和应力场,得出了阀壳裂纹区各工况下温度场和应力场的变化规律,提出了内壁裂纹区的周向应力是疲劳寿命计算的主要参考量。
Δε-Nf curve of ZG15Cr1Mo1V which is widely used in the casing and valve housing has been got through the modified universal slopes method .
综述了国内外最新的应变疲劳寿命估算模型,选用经实验证明估算精度较高的几种模型,与实验得出的转子钢30Cr2MoV低周疲劳寿命进行比较,证明修正的通用斜率法具有更为理想的预测精度,并用该法得出了汽轮机汽缸和阀壳用得较多的材料ZG15Cr1Mo1V的Δε-Nf方程,以用于阀壳及汽缸的疲劳设计和寿命估算。
Through the use of a structural-analysis finite element method,calculation was conducted to temperature field,thermal stress field and comprehensive stress field of the valve body of a pint-sized steam turbine under the cold startup condition.
采用结构分析有限元方法,对某型汽轮机阀壳冷态启动工况下的温度场、热应力场及综合应力场进行了分析计算,得出了关键点处详细的温度场及其对应的热应力场的变化规律,并估算了关键点处阀壳疲劳寿命。
The article describes the design process of the stop and control valve body machining for introduced 600MW steam turbine, and gives detailed solution of every difficulty.
介绍了引进型 60 0MW汽轮机主汽门调门阀壳加工工艺的设计过程 ,并对各个加工难点的解决作了详细的说
Included are main stop valve casings and high as well as middle pressure cylinder casings.
对300MW汽轮机承受高温、高压和频繁启停的部件,包括主汽阀阀壳和高、中压汽缸进行了强度计算及寿命评估。
The vapor pressure, speed, discharge that pass through the main valve of steam turbine make direct influence to its operation .
目前国内外的研究主要集中在对汽轮机控制主阀的结构改造和尺寸优化方面。
Generally, the main valve of three-stage electro-hydraulic servo valve is sliding valve, changing the flow area of valve port to control fluid flow rate by the relative motion of the valve spool and sleeve.
三级电液伺服阀的主阀一般采用滑阀结构,通过滑阀阀芯和阀套的相对运动来改变阀口过流面积,达到液流控制的目的。
Study on Thermal Fatigue Damage of the Valve on the Intermediate-pressure Section of Steam Turbine in Power Plants
火电站中压主汽阀阀壳热疲劳损伤研究
CAUSE ANALYSIS OF INNER-WALL CRACKING ON HIGH-PRESSURE MAIN STEAM VALVE'S SHELL
N300-16.7/538/538型汽轮机高压主汽阀壳内壁开裂原因分析
engine thermostat housing drain valve
发动机恒温器壳放泄阀
SUN HYDRAULIK GMBH offers Offers to Screw-in valves, Globe valves and Valve housing.
提供轴承箱、轴承体、阀体、阀箱、阀套、阀门外壳及其它产品。
The relief valve should be able to be removed by unscrewing the relief valve from the housing.
通过从外壳上旋下安全阀应该能够拆卸安全阀。
An O-ring seals the relief valve body to the main housing.
用一个O形环密封安全阀阀体与主外壳。
Reason Analysis and Treatment of Weld Crack in Water Drain Valve Base of Spiral Casing in Longtan Hydropower Station
龙滩电站蜗壳排水阀阀座焊接裂纹产生原因及处理
Analysis and treatment of welding crack of spiral case drain valve base
龙滩电站蜗壳排水阀阀座焊接裂纹原因分析及对策
Provides adjustable alignment, eliminates body wall penetrations.
具有可调整定位功能，避免阀体壳壁被穿透。
Case Analysis on Valve Casing Cracking in Zhong-Luo Parallel Oil Pipeline
中洛复线电动阀门壳体开裂的原因分析
The discussion on the evaluation methods of valve shell local area wall thickness measurement
阀门壳体局部区域壁厚测量评价方法的探讨
The spiral case disk shaped drain valve joystick fracture repair of Three Gorges Hydropower Station
三峡电站蜗壳盘形排水阀操作杆断口修复
INTERFACE REACTION BETWEEN CERAMIC MOULDS AND Ti46Al1B AS-CAST VALVES
陶瓷壳型面层材料与Ti46Al1B阀门铸件的界面反应
Remove the piston and spring from the relief valve housing and thoroughly clean all parts including the diaphragm.
从安全阀外壳上拆卸活塞和弹簧，彻底清洗包括隔膜的所有部件。
The Non Linear Finite Element Analyse of Heating Stress of 200MW Heat Providing Nuclear Reactor Pressure Shell Pipe Joint;
核供热堆压力壳组合阀接管热应力的有限元分析
"When the proper temperature is reached, alloy will flow readily into space between tube outer wall and valve socket. "
达到适当的温度后,合金将迅速容易地流进管道外壳和阀门套管之间的空间。
discharging valve
排出阀排气阀排水阀
Type of valve- gate, globe, check, etc.
阀门种类：闸阀，截止阀，止回阀，蝶阀，球阀，等等。