查询词典 valves

Derives the formulae for calculating the distortion and stress on the acting surface of flexspline load in the drive process of the harmonic gear drive with three-wave wavegenerator;(2) analyzes and compares the performance of plastic and steel products under light load drive and calculates the probably reached limit of drive ratio for both types of flexsplines under the same load;(3) applies the harmonic gear drive with three-wave wavegenerator to the small-sized multiple-revolution electric device of valves by taking into consideration of the low limit of the drive ratio for the harmonic gear drive with three-wave wavegenerator made of plastics, improves the design on the main drive mechanism of the traditional small-sized multiple-revolution electric device of valves, and validates through examples the feasibility for the harmonic gear drive with three-wave wavegenerator made of plastics to be applied to the small-sized multiple-revolution electric device of valves. Finally the author performs calculations on the two types of the flexsplines of the harmonic gear with three-wave wavegenerator by using the finite element method and analyzes the causes for the errors.

本文根据三波谐波齿轮传动的运动变形特点，采用弹性薄壳的力矩理论，推导了三波谐波齿轮传动柔轮载荷作用面上的变形及应力计算公式；分析比较了轻载传动情况下塑料和钢材的性能，计算了塑料制谐波柔轮和钢制谐波柔轮在相同载荷情况下可能达到的传动比极限；对塑料制及钢制三波谐波齿轮柔轮进行了有限元计算，分析了产生误差的原因；针对三波塑料谐波齿轮传动比极限低的特点，将之运用于小转矩多回转阀门电动装置中，对传统的小型多回转阀门电动装置的主传动机构进行了改良设计，并通过实例验证了三波塑料谐波齿轮传动在小转矩多回转阀门电动装置中应用的可行性。

Main Contents and Investment Scale: The construction project focuses on producing ship matching products including auxiliary project for the power station: marine diesel engine and marine generator; Auxiliary parts and equipment for cabins: marine gear box and electronical controlling device; pumps and valves: hydraulic rubber tubes, hydraulic oil cylinders, various valves, various pneumatic actuators, electric actuators, magnet valves, pressure regulators and electric appliance localizers etc.; marine electric appliance: marine APT series of pilot lamp buttons, GMC series of LG low-voltage electric appliances, voltage regulators, marine power distribution boxes, deck machinery: marine crane, electric hydraulic reamers, anchors, various hoists, marine materials: marine stainless steel pipes, marine watertight doors, portholes, rectangular windows, hatch covers, spring dragging hooks, coarse water screens, marine steel plates, marine communication navigators etc..

项目名称：船舶配套。2、项目主要内容及投资规模：建设项目以船舶配套产品为主，包括主机电站类的船用柴油机、船用发电机；机仓辅机类的船用齿轮箱、电子控制装置；泵、阀件类的液压胶管、液压油缸、各种阀门、各种气动执行器、电动执行器、电磁阀、调压阀、电器定位器等多种阀门配件、各种船用泵类；船用电器类的船用 APT 系列指示灯按钮、 GMC 系列 LG 低压电器、电力稳压装置、船用配电箱；甲板机械类的船用起重机、电动液压绞车、锚机、各种吊机等；舾装材料类的船用不锈钢管、船用水密门、舷窗、矩形窗、舱口盖、弹簧拖钩、粗水滤、船用钢板；船用通讯导航类设备等。

December 2, 2009 afternoon, Tuen valves trial of 40-inch diameter, Butterfly Valves pressure ball valve 600Lb welded pipeline testing organization in the state authority - Hefei Hefei General Machinery Research Institute under the Electrical Products Inspection Institute under test successfully passed through the pressure seal, Hydraulic seals and intensity of three tests, which marks the Tuen valves welded large diameter pipeline valve trial project a complete success.

2009年12月2日下午，屯阀公司试制的口径40寸、压力600Lb全焊接管线球阀在国家权威检测机构―合肥通用机械研究院下属的合肥机电产品检测院检测下，顺利通过气压密封、液压密封和强度三项试验，这标志着屯阀公司大口径全焊接管线球阀试制项目取得圆满成功。

TWT's two thousand various products are widely used in hydraulic generations,city plumbing ,wastewater treatment facilities,petroleum and chemical industries ,heating supplies ,and any other water related business.Among them,Water butterfly valves,DB flange butterfly valves and Tri-eccentric compound ring metal seated butterfly valves won the State New Products awards in 1994,2000,and 2001,respectively. The butterfly valve series carryings the "TWT" brand name was selected for the Famous Brand Product of Tianjin Award by the Tianjin government .

上述产品广泛应用于水源工程、城市给排水、污水处理、发电、石油、化工、供热、船舶、医药、冶金等行业管路系统中作为截流和调节设备使用，其中对夹式蝶阀、DB型法兰蝶阀、三偏心复合圈金属密封蝶阀、软密封明杆闸阀分别被评为1994年度、2000、2001、2002年度国家级新产品，"TWT"牌系列蝶阀被天津市政府授予"天津市名牌产品"、"外地市场受欢迎的天津产品"称号。

Control valves shall either be full size with reduced trim or have block valves, with full size flanges and reducers on either side of control valves to permit use of tempo- rary full size.

控制阀或者是全尺寸或为全尺寸法兰的切断阀，且在控制阀任一侧安装异径管以许可临时全尺寸的使用。

Control valves shall either be full size with reduced trim or have block valves, with full size flanges and reducers on either side of control valves to permit use of tempo- rary full size. Each lateral takeoff shall be full size.

控制阀类应或是带有缩径阀内件的全尺寸类型或是包括带有具备全尺寸法兰的多个截止阀和控制阀两边大小头的类型，以允许再循环管路应用全尺寸，每个横向管路分支应当是全尺寸型。

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 。

Velan bellows are designed for 10,000 cycles for 1/2–2"(15–50 mm) globe valves, 5000 cycles for bonnetless globe valves and 3000 cycles for 1/2–2"(15–50 mm) gate valves.

Velan波纹管设计寿命为DN15-DN50截止阀10，000次，无盖截止阀5000次，DN15-DN50闸阀3000次。

Conant Controls' complete line of Precision Selector Valves, Stack Valves, and Control Valves has been

Conant Controls公司设计出了全系列的精密旋钮阀、双动滑阀、控制放空阀等产品，从而给系统设

The main products:ball valves(wearable、bear erodent),butterfly valves,gate valves,which accord with GB、ASTM、JIS.

主要生产：球阀、蝶阀等国标、美标、日标阀门。

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。