异径管

它主要是由快开盲板、筒体、异径管、鞍式支架等部分构成。

It mainly consists of Quick Opening Closure , barrel , reducer , and saddle support .

计算环向薄膜应力时，一般来说，工程中各种异径管与连接直管之间的边缘应力可以忽略。

In general , the boundary stress between every kinds of reducer with tube may be ignored for circumferential membrane stress in engineering .

聚变堆用CLAM钢异径管冷成形数值模拟及试验研究

Numerical simulation and experimental study of cold forming for CLAM steel reducer

高压异径管断裂分析

Analysis of The Fracture of The High Pressure Different Diameters Pipe

偏心及同心异径管的三维有限元应力分析

Stress analyses of eccentric and concentric reducers by tridimensional finite element method

异径管展开面积近似计算方法的探讨（上）

Discussion on approximate calculation method for developed area of different diameter pipe (ⅰ)

偏心异径管应力的有限元数值分析

The numerical analysis of finite elements on the stress of eccentric template pipes

泵的水平入口管变径时，应选用偏心异径管。

Pump inlet pipe diameter changes when level , should choose eccentric different-diameter pipe .

还对相同直径比的偏心及同心异径管的小端应力集中系数进行了计算。

Furthermore , calculations of stress concentration coefficient for both eccentric and concentric reducers are completed .

偏心异径管两端管口圆周内切，一般用于水平的液体管道。

Eccentric different-diameter pipe tube ends in circumference , commonly used for liquid level of pipeline .

文中提出了施工中弯头、三通、异径管、定位板的选用原则。

The principle for the selection of elbows , T-pieces , reducers and positioning plates is put forward .

针对管壳式换热器，提出一种新的异径管布管方式。

For the shell-tube heat exchanger a novel tube arrangement of diameter reducing is presented in the paper .

超高压蒸汽管线的强度核算及异径管小端裂纹的成因

Checking calculation of strength of the super-high-pressure steam pipeline and causes of cracks on small ends of reducers

高温高压蒸汽管线的强度校核及异径管的三维有限元应力分析

Strength Check of a Steam Line Under High Temperature and High Pressure and Stress Analysis of an Eccentric Reducer

本课题主要研究异径管，这些异形管产品在工业中广泛应用，需求量大。

This paper deals with the different diameter tube , all the Abnormity Tube are widely applied in the industry .

特殊设计的凸形排泄板防止在压缩空气再次进入喇叭形异径管的位置上冷凝水的集聚。

The specially designed convex drain plate prevents accumulation of condensate at the compressed air re-entry point into the bell reducer .

异径管也叫大小头，两端管口直径不同，用于连接不同直径的管子或法兰进行变径。

Different-diameter pipe size head , also called tube diameter at different , used to connect different diameter of pipe or flange diameter changes on .

吸入室安装在异径管的喇叭口端，吸入室的另一端为吸入口。

The sucking room is provided on the bellmouthing end of the reducing pipe , another end of the sucking room is a suction inlet .

模型考虑了注汽管线上各种阀门、弯头、补偿器、异径管的影响，考虑了变注入工况和注汽管偏心结构对热损失的影响。

The following factors were considered in heat loss calculating model , namely various valves , elbows , compensator , tube diameter , various injection conditions and injecting pipe 's eccentric structure .

加热管线通过异径管的套管与封头管板相连接。异径管的套管与管板的连接是挠性结构，改善了连接点的应力状况；

The heating pipelines connect with header-tube plate through the casing pipe of different diameters tube and the connection is flexibility structure , therefore the stress status of the joints is improved .

管束是蒸发器的核心部件，制造管束的关键是控制异径管以及异径管与封头管板的焊接质量。

The bundle of tubes is the core part of tubes evaporator and the key of tubes bundle manufacture is welding quality control of different diameters tube , and different diameters tube with header-tube plate .

管件类：弯头、三通、四通、活接头、卜芯、大小头、管帽、堵头、内丝、外丝、翻边、异径管。

Pipe series : Elbow , tee , cross , movable joint , Bu core , reducer , pipe cap , choke plug , inside the wire , outside the wire , turned-over edge , increaser etc.

内压在非轴对称结构的偏心异径管的偏心侧大端和中部引起的环向应力最大，且偏心侧外壁的环向应力较内壁的环向应力大。

As its un-axial-symmetric structure of eccentric reducer , maximum circle stress is showed at the large end and middle of eccentric side , and the circle stress on outside surface is larger than that on inside surface at the eccentric side middle of eccentric reducer .

空间异径三岔管的解析法展开

Analytical Method for Lofting of Space Four-way Tube Joint

传热管异径布管方式传热系数的数值分析

Numerical Analysis of Heat-Transfer Coefficient of Different Diameter Thermo - Tube and Disposal Mode

异径穿管技术在燃气管道改造中的应用

Application and Practice of Gas Pipeline Transformation by Passing Smaller Diameter PE Pipe through Old Pipeline

异径布管夹持支撑结构换热器壳侧场协同分析

Analysis of Field Coordination on Heat Exchanger Shell Side with Different Diameter Tubes and Holding Structure

考虑换热器异径布管方式，该结构比相同体积下传统换热器传热面积增加30%左右。

The layout method of tubes with different diameters is considered in heat exchangers . The heat transfer area is increased 30 percent than the traditional heat exchangers ' .

首次提出五管单元流道模型，对异径布管夹持结构换热器壳侧单相湍流流动进行了流场、温度场耦合的三维数值模拟。

The model of the " five-tube unit flow passage " is introduced . Three-dimensional numerical simulation of the coupling of flow field and temperature field of single-phase turbulent flow in shell side of the new exchanger is performed .

就空间异径三岔管的解析法展开，给出了有关的展开曲线方程，以及方程中各个系数的计算公式，为数控切割机等现代化设备参与生产实践，提供理论依据。

Introduced lofting of analytical method based on space four-way tube joint , gave the equations related curve and the formulas of coefficient in equations , the lofting method mentioned provided theoretical basis for numerical control cutting machine in working .