航发燃油喷嘴旋流器的加工工艺及测量方法改进
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摘要
针对某型号航空发动机燃油喷嘴的加工工艺及测量方法改进问题,分析了燃油喷嘴精密零件旋流器的加工工艺与测量方法的改进。通过改进加工工艺,采用车削中心一次装夹完成零件外型及旋流槽的加工,重新设计加工刀具,提高零件的加工精度,有效解决了喷嘴组件的燃油喷雾角度偏离设计值的问题;通过尺寸换算,改变测量尺寸,以测量槽的进出口长度尺寸来代替槽深尺寸,解决了旋流槽深度尺寸测量失真问题;通过对不同设计尺寸特性的零件在不同燃油压力下流量试验的数据分析,优化选择,确定了燃油流量值满足设计期望的喷嘴零件设计特性,解决喷嘴燃油流量偏小及高低压燃油流量不同步问题,对燃油喷嘴的改进提供了重要依据。
To improving the processing technology and measurement method of a certain type of aero-engine fuel nozzle, the improvement of the processing technology and measurement method of the fuel nozzle precision part swirler is analyzed in this paper. By improving the processing technology and adopting the turning center to complete the machining process of the parts shape and the spiral chute at a time, the processing cutting tool is redesigned to improve the processing precision of the parts, and the deviation problem of fuel spray nozzle angle from the designed value of the nozzle components is effectively solved; Through the dimension conversion, the measurement size is changed to measure the inlet and outlet length of the tank instead of the depth of the slot, and the distortion of the depth dimension of the swirl groove is solved. Through the data analysis and optimized selection of the flow tests to the parts with different design sizes and characteristics under different fuel pressure, design features of the nozzle parts whose fuel flow rate value could satisfy the design expectation are determined, so as to solve the problems such as the nozzle fuel flow is small, and the high and low pressure fuel flow is out of sync, etc. This paper provides an important basis for the improvement of fuel nozzle.
To improving the processing technology and measurement method of a certain type of aero-engine fuel nozzle, the improvement of the processing technology and measurement method of the fuel nozzle precision part swirler is analyzed in this paper. By improving the processing technology and adopting the turning center to complete the machining process of the parts shape and the spiral chute at a time, the processing cutting tool is redesigned to improve the processing precision of the parts, and the deviation problem of fuel spray nozzle angle from the designed value of the nozzle components is effectively solved; Through the dimension conversion, the measurement size is changed to measure the inlet and outlet length of the tank instead of the depth of the slot, and the distortion of the depth dimension of the swirl groove is solved. Through the data analysis and optimized selection of the flow tests to the parts with different design sizes and characteristics under different fuel pressure, design features of the nozzle parts whose fuel flow rate value could satisfy the design expectation are determined, so as to solve the problems such as the nozzle fuel flow is small, and the high and low pressure fuel flow is out of sync, etc. This paper provides an important basis for the improvement of fuel nozzle.
引文
[1] 甘晓华.航空燃气轮机燃油喷嘴技术[M].北京:国防工业出版社,2006.
[2] 王政.关于燃气轮机燃油喷咀的检修及试验[J].燃气轮机技术,2001,14(3):48-51.
[3] 黄维,黄春峰,王永明,等.先进航空发动机关键制造技术研究[J].国防制造技术,2009(3):42-48.
[4] 刘洋,陈鹏飞,史俊瑞,燃气轮机旋流器安装角对燃烧室出口温度品质的影响[J].热能动力工程,2017(s1):41-45.
[5] 刘凯,张宝诚,宋文超,等.加工工艺对航空发动机燃油喷嘴性能的影响研究[J].航空发动机,2012,38(1):55-59.
[6] 邱伟,夏丽敏,孙辉,等.某型航空发动机燃油喷嘴喷雾锥角调试试验研究[J].航空制造技术,2016(20):58-62.
[7] 郑学著,黄袖清,陈艳芳,等.燃油喷嘴主要性能参数的影响因素及调试技术[J].航空制造技术,2014(22):155-157-160.
[8] 伍权,徐卫平,白文斌.燃油喷嘴制造技术的改进[J].机电技术,2008(1):47-49.
[9] 马洪安,张宝诚,刘凯.某型航空发动机燃油喷嘴对比试验研究[J].航空发动机,2009,35(3):54-57.
[10] 陈俊,张宝诚,马洪安,等.某型航空发动机燃油喷嘴的试验研究[J].燃气涡轮试验与研究,2006,19(3):40-43.
[2] 王政.关于燃气轮机燃油喷咀的检修及试验[J].燃气轮机技术,2001,14(3):48-51.
[3] 黄维,黄春峰,王永明,等.先进航空发动机关键制造技术研究[J].国防制造技术,2009(3):42-48.
[4] 刘洋,陈鹏飞,史俊瑞,燃气轮机旋流器安装角对燃烧室出口温度品质的影响[J].热能动力工程,2017(s1):41-45.
[5] 刘凯,张宝诚,宋文超,等.加工工艺对航空发动机燃油喷嘴性能的影响研究[J].航空发动机,2012,38(1):55-59.
[6] 邱伟,夏丽敏,孙辉,等.某型航空发动机燃油喷嘴喷雾锥角调试试验研究[J].航空制造技术,2016(20):58-62.
[7] 郑学著,黄袖清,陈艳芳,等.燃油喷嘴主要性能参数的影响因素及调试技术[J].航空制造技术,2014(22):155-157-160.
[8] 伍权,徐卫平,白文斌.燃油喷嘴制造技术的改进[J].机电技术,2008(1):47-49.
[9] 马洪安,张宝诚,刘凯.某型航空发动机燃油喷嘴对比试验研究[J].航空发动机,2009,35(3):54-57.
[10] 陈俊,张宝诚,马洪安,等.某型航空发动机燃油喷嘴的试验研究[J].燃气涡轮试验与研究,2006,19(3):40-43.