The design of barrel type throttle valve
[Abstract] The valve as pipeline's important controlling element is widely applied in each department of national economy such as petroleum, chemical, metallurgy, natural gas transportation, power station and urban water supply. The throttle valve is more widely used because of simple constructs, convenient for the manufacture and the maintenance and low cost. The throttle valve is important equipment in the well-control header，it can be put in any position according to the pressure on the mouth of well and it is mainly used in the throttling with controlling the pressure and volume of flow discharged by the mouth of well to balance formation pressure. It is playing the very vital role in the high pressure on the mouth of well device. The barrel type throttle valve is one kind of the throttle valve ,it is mainly composed of the valve core and the valve chest that forms invariable or the non-invariable orifice. The size of invariable orifice is generally changed by way of the relative motion with the moving part valveoand the fixed part (valve chest or valve seat).
The design work mainly for the throttle mechanism and institutional design and material selection of key parts of the factors affecting the throttle to study and Improve the design.
[Key words] Throttle valve，adjustable，Material selection
