Design of Metal Seated Ball Valve Mechanism
|關鍵字:||閥座;球閥;工程設計法;ball valve;seat;TRIZ;engineering design|
A seat is a device mounted in a valve. When a ball valve is in close position, the seat makes a sealing effect in a ball valve. The seat material is usually plastic or rubber, so the seat will be damaged under high pressure or high temperature environment. The objective of this study is to design a new seat mechanism suitable for the ball valve. Related U.S. patents are surveyed for references during the design process. To design a new metal seat, there are four steps, arranged in the engineering design process: planning and clarifying the task, conceptual design, embodiment design, and detailed design. Some useful tools from Quality Function Deployment (QFD) technique and Theory of Inventive Problem Solving (TRIZ) method are used in design process. The prototype model is complete by using CAD and CAE software. Finally, a new prototype of metal seat in a ball valve is manufactured.
|Appears in Collections:||Thesis|