可调式引射器流量调节特性研究  

Study on Flow Rate Regulating Characters of an Injector

作　　者：浦晖[1] 李学来[1] 朱彻[2] 

机构地区：[1]福州大学化学化工学院,福州350002 [2]大连理工大学化工学院,大连116012

出　　处：《制冷》2005年第3期15-18,共4页Refrigeration

摘　　要：引射器在石油、化工、天然气输气过程、气波制冷、天然气脱水工艺、热能工程等领域中得到广泛应用。为了适应工况变化,需要研制流量可调式引射器。本文探讨了调节锥形状、尺寸对可调式引射器流量调节特性的影响。结果表明:对于圆锥型调节锥,随着锥角的增大,调节锥轴向可移动距离明显减小;流量与调节锥轴向移动距离呈二次曲线关系,即流量调节具有非线性性质。提出了一种可使引射器流量实现线性调节的调节锥型线方程。为具有良好调节性能的可调式引射器的研制打下基础。The injector with a constant structure is widely used in many areas, such as petroleum, chemical engineering, natural gas tube transportation process, natural gas dehydration or light hydrocarbon process by means of gas wave refrigeration, etc. This kind of injector is not adapted in the case of vary operating conditions. For this reason, to develop a injec- tor that the flow rate can be regulated is necessary and will be a great application value as well. In the present paper, the effects of the shape and sizes of the regulating probe on the performance of a injector are investigated. The result shows that the axial regulating range of the length of the probe is infected significantly by the top angle of the probe. When the probe with a shape of owl, the relation between the flow rate and the regulating displacement is quadratic, which means the injector has a nonlinear regulating character.To improve regulating performance, a quadratic surface of the probe is developed. As a result, the flow rate of the injector can be regulated linearly.

关 键 词：引射器 喷射泵 流量调节 

分 类 号：TB617[一般工业技术—制冷工程] TQ051.5[化学工程]