The utility model discloses a throttling element with a joint, which is composed of a shell and a throttling component. The shell is provided with a through hole in axial direction, and the radial outer end part of the two ends of the axial direction has the shape of the welded joint. The shape of the axial flow of the throttling member is the same as that of the ordinary throttling element through the fluid part, including four forms: the orifice plate, the tapered nozzle, the diverging expanding nozzle, and the diverging nozzle. The throttling member is fixed in the axial through hole of the housing and is connected with the casing into a whole. Thus, the throttle component with the joint can be connected with the pipe in a welding way. In order to improve the wear resistance and corrosion resistance of the throttling element with a joint, and reduce manufacturing cost, different parts of the throttling element with a joint can be made of different materials, such as cutting pieces with wear resistance and corrosion resistance of the material, and the shell with ordinary materials.
【技术实现步骤摘要】
本技术属于流体动力学
，涉及到管道内部流体流动控制器件，特别是一种带接头的节流元件。
技术介绍
现有的管道内部流体流动控制节流元件包括孔板、渐缩喷管、渐缩渐扩喷管、渐扩喷管等，其结构如图1所示。在图1中，(a)为孔板、(b)为渐缩喷管、(c)为渐缩渐扩喷管、(d)为渐扩喷管。当在管道上使用节流元件时，需要采用某种联接方法将节流元件和管道联接。常见的联接方法是法兰联接，图2即为法兰联接的孔板。在图2中，1为法兰、2为螺栓、3为螺母、4为垫片、5为孔板，管道和法兰1联接。当节流元件采用法兰联接时，虽然有易于更换节流元件等优点，但存在法兰联接处可能泄漏工质的先天不足与安装复杂等缺点。法兰联接的这些缺点限制了节流元件的使用，或者使节流元件的应用产生不良的副作用。
技术实现思路
为了克服节流元件和管道联接时采用法兰联接方式所存在的弊端，本技术的目的是提出一种带有焊接接头的节流元件，该节流元件可以和管道以焊接的方式联接，从而实现无泄漏联接。实现上述目的的技术解决方案是一种带接头的节流元件，由节流件和外壳组成，其特征在于，所述外壳的轴向有一通孔，节流件固定在外壳轴向通孔中，...
【技术保护点】
一种带接头的节流元件，由节流件和外壳组成，其特征在于，所述外壳的轴向有一通孔，节流件固定在外壳轴向通孔中，外壳轴向两端的径向外端有坡口形状的焊接接头。
【技术特征摘要】
【专利技术属性】
技术研发人员：林万超，陈国慧，邢秦安，
申请(专利权)人：西安交通大学，
类型：实用新型
国别省市：87[中国|西安]
还没有人留言评论。发表了对其他浏览者有用的留言会获得科技券。