结合粒子群算法的双涡圈涡旋盘动力特性优化研究

刘兴旺; 刘世成; 韩向阳; 杨欢

doi:10.13433/j.cnki.1003-8728.20220130

结合粒子群算法的双涡圈涡旋盘动力特性优化研究

doi: 10.13433/j.cnki.1003-8728.20220130

兰州理工大学石油化工学院，兰州　730050

基金项目: 国家自然科学基金项目（51265026）与压缩机技术国家重点实验室开放基金项目（SKL-YSJ202110）

详细信息

作者简介:
刘兴旺（1970−），副教授，硕士生导师，博士，研究方向为空调系统及涡旋压缩机的优化，liuxw@lut.cn

中图分类号: TH45
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- 被引次数: 0
出版历程
- 收稿日期: 2021-09-18
- 刊出日期: 2023-11-30

Research on Dynamic Characteristics Optimization of Double-scroll Compressors with Particle Swarm Optimization

School of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, China

摘要

摘要: 满足一定热力性能的双涡圈涡旋盘的几何参数可有无限多组，而由不同几何参数构建的涡旋盘的动力性能却差别巨大，如何通过优化涡旋盘的几何参数来提高其动力性能成为设计的难点。为此，提出了一种基于粒子群算法的涡旋盘几何参数优化方法。以离心惯性力为优化目标，运用MATLAB软件对其进行迭代优化，并分析了型线几何参数对离心惯性力、轴向气体力、径向气体力、切向气体力以及倾覆力矩的影响。结果表明：优化后涡旋盘所受离心惯性力减小，高转速下离心惯性力减小幅度更大。优化后涡旋盘所受轴向气体力减小，轴向气体力脉动幅度变化不明显。而一味追求较小的的涡旋盘直径，会导致涡旋盘受到的倾覆力矩增大。该优化方法可为双涡圈涡旋盘的设计提供参考。
- 粒子群算法 /
- 涡旋盘 /
- 参数优化 /
- 动力性能
Abstract: The geometric parameters of the double-scroll compressor that meets a certain thermal performance can have an infinite number of groups, but the dynamic performance of scrolls constructed from different geometric parameters is very different. How to optimize the geometric parameters of the scroll to improve its power performance becomes a design difficulty. For this reason, an optimization method of scroll geometric parameters based on particle swarm optimization is proposed. Taking the centrifugal inertial force as the optimization objective, it is optimized by MATLAB software, and the influence of the geometrical parameters of the profile on the centrifugal inertial force, axial gas force, radial gas force, tangent gas force and capsizing moment is analyzed. The results show that the centrifugal inertial force experienced by the scroll is reduced after optimization, and the centrifugal inertial force decreases even more at high speed. After optimization, the axial gas force received by the scroll is reduced, and the axial gas force pulsation amplitude does not change significantly. And blindly pursuing a smaller scroll diameter will increase the capsizing moment of the scroll. This optimization method can provide a reference for the design of the double-wrap scroll.
- particle swarm optimization /
- scroll /
- parameter optimization /
- dynamic performance

HTML全文

图 1 高压壳体腔涡旋压缩机局部示意图

Figure 1. Local diagram of a high-pressure scroll compressor

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图 2 涡旋齿外接圆直径几何关系

Figure 2. Geometric relationship of diameter's of outer circle of vortex profile

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图 3 动静涡旋齿啮合示意图

Figure 3. Mesh diagram of orbiting and fixed profiles of ascroll compressor

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图 4 动静涡旋盘密封面结构关系

Figure 4. Structure relationship of sealing surfaces of orbiting and fixed scrolls

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图 5 动涡旋盘直径随涡旋齿壁厚变化曲线

Figure 5. The diameter of the scroll disk varies with the thickness of orbiting scroll tooth

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图 6 动涡盘直径随基圆半径变化曲线

Figure 6. The diameter of the scroll disk varies with the base radius of orbiting scroll profile

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图 7 动涡盘直径随齿高变化曲线

Figure 7. The diameter of the scroll disk varies with the height of orbiting scroll profile

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图 8 粒子群智能算法流程图

Figure 8. The flow chart of particle swarm optimization

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图 9 涡旋盘几何参数优化迭代曲线

Figure 9. Optimization iteration curve of the geometrical parameters of the scroll profile

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图 10 双涡圈排气腔面积分割示意图

Figure 10. Area division diagram of double-scroll compressor's exhaust chamber

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图 11 不同参数下涡旋盘轴向气体力

Figure 11. The axial gas force of scroll under different parameters

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图 12 不同参数下动涡盘惯性力随转速的变化

Figure 12. The change of inertia force with rotating speed under different parameters

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图 13 不同参数下径向气体力随主轴转角变化

Figure 13. The radial air force changes with the angle of spindle under different parameters

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图 14 其中一段涡旋齿切向气体力计算示意图

Figure 14. Calculation of tangential air force of a scroll tooth

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图 15 不同参数下切向气体力随主轴转角变化

Figure 15. The tangent air force changes with the angle of spindle under different parameters

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图 16 动涡盘倾覆力矩示意图

Figure 16. The upsetting moment of orbiting scroll

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图 17 不同参数下倾覆力矩随主轴转角变化

Figure 17. Upsetting moment varies with spindle angle under different parameters

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表 1 优化后涡旋盘几何参数

Table 1. The geometrical parameters of the scroll are optimized

几何参数	数值
几何参数	一次优化后	二次优化后
基圆半径 /mm	10.2635	11.7180
涡旋齿壁厚 /mm	5	5
涡旋齿高 /mm	81	50
动涡盘直径 /mm	239.1044	290.7125

下载: 导出CSV

表 2 涡旋盘力学性能

Table 2. Mechanical property of scroll

参数类型	轴向气体力/kN
参数类型	最小	最大	极差
初选参数	155.2	156.0	0.8
一次优化	68.3	69.3	1.0
二次优化	105.2	106.6	1.4

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