阀门

The gliders use electrical power to operate pumps and valves to transfer oil back and forth between a bladder that is contained inside their torpedo-shaped pressure hull and another bladder that is outside (usually in a flooded part of the hull).

海洋滑翔器使用电力来抽水和调节阀门在内外两个气泡之间调整油的进出。内阀门包含在鱼雷状的耐压壳体内。外阀门则在外部。

The model included speed control, load control, valve management, valves test, RUNBACK, overspeed protection, LDA, CIV, ETS, RSM, MEH, gland seal system etc, discussed the strategy of valve management, RSM, control loop smooth switching with emphasis.

模型包括了转速控制、负荷控制、阀门管理、阀门试验、RUNBACK、超速保护、甩负荷预测、中压调门快关-快开、紧急跳闸保护、转子热应力控制、MEH控制和轴封控制等功能，重点讨论了阀门管理策略、负荷控制回路无扰切换策略和转子热应力控制策略，对实际系统尚未投入使用的甩负荷预测和中压调门快关-快开功能也进行了建模仿真。

On the operational sending wind, the cover of the flue valve on the sirocco stove bursted suddenly.

热风炉在送风操作过程中，烟道阀门盖突然发生爆裂，为查明阀门盖的爆裂原因，对阀门盖残骸进行了断口观察、成分测试、金相组织检查和力学性能测试。

By means of a 1/17 scale hydraulic model of the lock culvert valve of the TGP, the valve trunnion load s were measured and their fluctuation values and characteristics were analyzed.

通过几何比尺17的阀门段水力学模型试验，测量了在阀门运行过程中三峡船闸输水阀门支铰荷载，并分析了其脉动量的数值及频率特性。

Numerical simulations were done for a bistable latch valve of the system by FLUENT, and three groups of datum for different fluids were obtained with the same effective exit sectional area. Besides, a static mathematic model for the electromagnetic valve was established based on the obtained datum. Secondly, the motion of the valve spool was realized by UDF file in FLUENT. Three kinds of motions, uniform, acceleration and motion driven by the coupling effect of the liquid resistance and the electromagnetic force, were calculated and compared. The dynamic characteristic of the electromagnetic valve was obtained by analyzing the relationship of the mass flow rate of the inside flow field of the electromagnetic valve, the change of the drop pressure of the passageway of the valve, and motion time.

并针对系统中的某双稳态电磁阀，使用商用CFD软件FLUENT对其进行内部流场的数值模拟，通过使用不同流体介质，不改变阀门有效出口截面积的情况下，分析得到的三组数据，建立了该电磁阀的静态数学模型；通过编写UDF文件，实现对阀芯运动方程的控制，在阀门做由闭合到开启、开启到闭合运动时，控制阀芯分别做匀速运动、匀加速运动以及阀芯受到液体阻力与电磁力作用力的耦合力的运动，分析了三种工况下电磁阀内部流场质量流率和阀门出口入口压降的变化以及运动时间，从而得到该电磁阀的动态特性。

The company mainly engaged in import valves, water system valves: Taiwan Toyama steam / hot coal system: HITACHI / VENN / KSB / ARI American NUTORK pneumatic / electric control valve pump: Taiwan Chuan source, AURORA fire-fighting system UL / FM certified valves: TYCO / FIVALCO / POTTER / APCO.

公司主要经营进口阀门，水系统阀门：台湾富山蒸汽/热煤系统：HITACHI / VENN / KSB / ARI 美国NUTORK气动/电动调节阀水泵：台湾川源，AURORA 消防系统UL/FM认证阀门：TYCO/FIVALCO/POTTER/APCO 。

Based on analysis of the current state of the flow pattern modeling abroad and at home, explains the meaning of the mathematical simulation of the flows in the valve.(2) Comparing flow simulation data of jet pump with its experimental one, the feasibility and reliability of FLUENT used for flow simulation are proved.(3) Based on the characteristic of valves, the fluid field analysis of specific ring-spray type flow-adjustable is finished. The valve structure is optimized to meet the need, which makes it have such advantages:(1)smaller vortex area and faintish vortex intensity, so the vibration of vortex is controlled effectively;(2)the pressure is distributed more equality, the transition area is larger.

论文的主要内容包括：(1)简述了阀门研究的现状与发展，在分析与总结国内外流体流动模拟研究的基础上，探讨开展阀门内水流运动数值模拟的意义；(2)对特定型号的射流泵进行了内部流场的数值模拟研究，并与实验数据相比较，验证了应用Fluent进行数值模拟的可行性和可靠性；(3)针对调流阀的特点，对特大口径环喷式流量调节阀进行流场计算，其设计指导思想如下： 1、控制旋涡，减小旋涡区，减小涡的强度； 2、控制压力分布，使阀体受力更均匀，改善局部应力状态，提高阀门使用的安全性； 3、最小绝对压力高于水的汽化压力，不产生汽蚀。

This paper elaborates on the performance of Monel ,and It tells us the foundry and pressure working of Monel .

分析了蒙乃尔合金的性能，叙述了铸造蒙乃尔合金和变形蒙乃尔合金及耐蚀阀门选用的蒙乃尔合金牌号，介绍了整体蒙乃尔合金阀门和蒙乃尔合金内件阀门适用条

This procedure requires the operator to close the valve as tightly as possible by hand, thenvent the pressure in the valve outlet and reclose the valve immediately.

这个程序要求操作者用手尽可能紧的关闭阀门，排出阀门排气口的压力，接着马上重新关紧阀门。

This procedure requires the operator to close the valve as tightly as possible by hand, then vent the pressure in the valve outlet and reclose the valve immediately.

这个程序要求操作者用手尽可能紧的关闭阀门，排出阀门排气口的压力，接着马上重新关紧阀门。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。