阀体

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。

Additionally, an exhaust port is provided in the housing for fluidly connecting to the atmosphere.

另外，在阀体上还有一个排出口(40)，用于与大气流体连通。

An air spring port is provided in the housing for fluidly connecting to an air spring.

在阀体上还有一个空气弹簧口(39)，用于与空气弹簧(22)流体连通。

Jacketed valve:This valve is design incorporates a so-called jacket around the valve body.

夹套阀：这种阀的设计，是将一个所谓的夹套套在阀体上。

Yongkang hefa tools co.,ltd.is a manufacturcr specializing in producing auxiliary air valves and carbon canisters of motorcycle,leisure vehicle,universal gasoline engine and automobile with japanese technologies.it has obtained iso9001:2000 certification and has several patents such as unspillable reed valve,combined gulp cylinder head ,ctc.or company is located in baiyun industry area,yongkang,a city of hardware in china with comfortable environment and convenient transportation with the first-class production ?

双缸空气阀永康市合发工具有限公司是一家专业生产摩托车、休闲运动车、通用汽油机、汽车用二次空气阀总成、活性碳罐的企业。公司引进了日本技术，通过 iso9001：2000国际质量管理体系认证，并且拥有多项专利技术，如：无泄漏簧片阀，连体补气缸头、大流量无泄漏簧片阀、双簧阀体、双簧阀盖等，具备年产二次空气阀200万套的能力。

Yongkang Hefa Tools Co.,Ltd.is a manufacturcr specializing in producing Auxiliary Air valves and carbon canisters of motorcycle,leisure vehicle,universal gasoline engine and automobile with Japanese technologies.it has obtained ISO9001:2000 certification and has several patents such as unspillable reed valve,combined gulp cylinder head ,ctc.or company is located in Baiyun Industry Area,Yongkang,a city of hardware in China with comfortable environment and convenient transportation With the first-class production ﹠ test equipment and abundant test methods,we have already gained the ability to establish a complete process line from rough machining to entire assembly.

永康市合发工具有限公司是一家专业生产摩托车、休闲运动车、通用汽油机、汽车用二次空气阀总成、活性碳罐的企业。公司引进了日本技术，通过ISO9001：2000国际质量管理体系认证，并且拥有多项专利技术，如：无泄漏簧片阀，连体补气缸头、大流量无泄漏簧片阀、双簧阀体、双簧阀盖等，具备年产二次空气阀200万套的能力。

Yongkang Hefa Tools Co.,Ltd.is a manufacturcr specializing in producing Auxiliary Air valves and carbon canisters of motorcycle,leisure vehicle,universal gasoline engine and automobile with Japanese Taiwan technologies.it has obtained ISO9001:2000 certification and has several patents such as unspillable reed valve,combined gulp cylinder head ,ctc.or company is located in Baiyun Industry Area,Yongkang,a city of hardware in China with comfortable environment and convenient transportation With the first-class production ﹠ test equipment and abundant test methods,we have already gained the ability to establish a complete process line from rough machining to entire assembly.

永康市合发工具有限公司是一家专业生产摩托车、休闲运动车、通用汽油机、汽车用二次空气阀总成、活性碳罐的企业。公司引进了日本、台湾技术，通过 ISO ：9001：2000国际质量管理体系认证，并且拥有多项专利技术，如：无泄漏簧片阀，连体补气缸头、大流量无泄漏簧片阀、双簧阀体、双簧阀盖等，具备年产二次空气阀200万套的能力。

His paper presents a parallel dynamic passive valveless micropump, which consists of three layers—valve, diaphragm and electromagnetic coil.

本文提出了一种并联式动态无阀并联微泵，该微泵由阀体、振动膜和电磁线圈三层结构组成。

Applying air pressure to the annular space between the sleeve and the body actuates the valve.

在套管与阀体之间的环形空间内施加气压来驱动阀门。

The research shows that, when fluidized gas is used only, it had little effect on the quantity of returning solids, and that the effect of loosed gas is significant. Horizontal opening has distinct effect on the circulating rate only when the loosed gas is larger; the appropriate horizontal opening is corresponding to the gases quantity. The combining of the arced gas distributor and the gases regulating could eliminate the fluidized dead zone in the U-valve effectively.

结果表明，单一流化风对循环量的影响较小，而松动风对循环量的调节幅度比较大；水平孔口开度只有在松动风量较大时对循环量的影响比较明显，而且合适的水平孔口开度与输送风量的大小相对应；利用圆弧形布风板和气量调节相结合可以很好地消除阀体内的流化&死区&。

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。