2) triple eccentric butterfly valve
三偏心蝶阀
1.
Development of tracking control system of triple eccentric butterfly valve PTA;
三偏心蝶阀堆焊焊缝跟踪控制系统研究
2.
Analysis of the effect on interference in disks caused by the structural parameter changes of the triple eccentric butterfly valve;
三偏心蝶阀结构参数变化对其蝶板干涉影响的分析
3.
According to the field environment of plasma spray welding,the track of triple eccentric butterfly valve and the characters of MCU control technology are analyzed,to put forward the project of tracking control system.
针对蝶阀密封面等离子喷焊需要,在分析三偏心蝶阀焊缝轨迹和单片机控制特点的基础上,提出了焊缝跟踪系统方案。
3) tri-eccentric butterfly valve
三偏心蝶阀
1.
The butterfly valve adjusting liquid level of urea converter was successfully revamped into tri-eccentric butterfly valves.
将尿素合成塔液位调节蝶阀成功的改造为三偏心蝶阀,介绍三偏心蝶阀的结构特征、流量特性以及材料选择要求。
2.
The paper expounds the structural characteristics of the tri-eccentric butterfly valve,analyzes the static force acted on the butterfly plank and deduces the seal moment of the tri-eccentric butterfly valve.
本文阐述了三偏心蝶阀的结构特点,从蝶板的静力分析着手,推导出三偏心蝶阀的密封力矩,分析了蝶板厚度、径向偏心距、轴向偏心距以及偏心角对密封力矩的影响。
4) three-eccentricity butterfly valve
三偏心蝶阀
1.
As an equipment item in the emergency trip system,a large-sized three-eccentricity butterfly valve has gradually found its use in the steam turbine security system of thermal and nuclear power plants.
大型三偏心蝶阀作为紧急切断系统逐步推广应用到燃气发电机组进气保安系统中,其液压控制系统的动态响应特性及可靠性对电站安全运行至关重要。
2.
The principle and features of three-eccentricity butterfly valve were introduced.
介绍了三偏心蝶阀的原理与特性,对其在惠州炼油分公司420万吨/年延迟焦化装置的应用中出现的问题进行了认真的分析,并提出了相应的优化措施。
5) triple eccentric seat sealing system
三偏心密封结构
6) Off-center
[英]['ɔ:f'sentə] [美]['ɔf'sɛntɚ]
偏心
1.
Two methods about how to calculate the bearing off-center of curved beam bridge are presented,which is common but no conclusion now.
根据恒载条件下横桥向双支座反力相等原则,对曲线梁桥设计中常见但尚无定论的支座偏心问题提出了2种计算方法,即最小偏心法和一致偏心法。
补充资料：在AutoCAD中偏心圆锥与偏心圆台实体的画法
现在要画一个偏心圆锥,底面在WCS的XY平面上,圆心(0,0,0),半径100,顶点(300,0,400)在ZX平面上.
1)连接PA,PB. A(-100,0,0) B(100,0,0)
图1
在当前坐标下:
2)延长PA到C,使PA=CA;延长PB到D,使PB=DB;
3)连接CD;
4)以CD为直径画圆;
5)用XLINE命令中的二等分选项作角CPD的角平分线PO,交CD于O;
6)过O作CD的垂线,交圆于E,F;
图2
7)用三点UCS命令,取三点为:O,P,C;
8)过点O作PO的垂线GO,交PC于G;
图3
9)再次用三点UCS命令,取三点为O,F,G;
10)现在就可以画椭圆锥了!
cone-e-c-捕捉O点-捕捉F点-捕捉G点-a-捕捉P点;
图4
11)回到WCS,剖切椭圆锥
SL-选择椭圆锥-回车-XY-回车-捕捉P点.
12)删除辅助线条.
图5
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