一种适用于有机朗肯循环的球形滚珠膨胀机

胡惠惠; 欧阳新萍; 侯庆亚; 白桦

doi:10.13433/j.cnki.1003-8728.20200339

一种适用于有机朗肯循环的球形滚珠膨胀机

doi: 10.13433/j.cnki.1003-8728.20200339

上海理工大学能源与动力工程学院, 上海 200093

详细信息

作者简介:
胡惠惠(1997-), 硕士研究生, 研究方向为膨胀机, 压缩机, huhuihui0130@163.com

通讯作者:
欧阳新萍, 教授, 硕士生导师, xpoy@163.com

中图分类号: TB653
计量
- 文章访问数: 98
- HTML全文浏览量: 34
- PDF下载量: 26
- 被引次数: 0
出版历程
- 收稿日期: 2020-07-21
- 刊出日期: 2022-02-25

Spherical Ball Expander Suitable for Organic Rankine Cycle

School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

摘要

摘要: 针对目前应用于有机朗肯循环(ORC)的容积型小容量膨胀机结构复杂、难以应用推广的现状，提出了一种新型球形滚珠膨胀机。其组合了滚动转子式膨胀机和往复活塞式膨胀机的部分特征及优点，结构简单、零件数少、制作方便、运动平衡性好。介绍了球形滚珠膨胀机的工作原理和运行过程以及部分主要零件的设计，并在此基础上设计了一种区别于常规进气结构的优化方案，取消了进气阀，减小了流动损失和阀门振动噪声。针对某一工况设计了膨胀机尺寸，并进行了润滑设计和泄漏分析以及容积效率估算。
- 容积型膨胀机 /
- 球形滚珠 /
- 进气结构优化 /
- 有机朗肯循环
Abstract: In view of the present situation that the volumetric small-capacity expander currently used in the organic Rankine cycle has a complicated structure and is difficult to apply and promote, a novel spherical rolling rotor expander is proposed, which combines some features and advantages of the rolling rotor expander and the reciprocating piston expander. It has the features of simple construction, few components, convenient manufacturing and good balance of movement. By introducing the working principle and running process of spherical ball expander and the design of some main parts, an optimization scheme is designed which is different from the conventional intake structure. The intake valve is cancelled, the flow loss and valve vibration noise is reduced. Finally, the size of the expander was designed for a certain working condition, and the lubrication design, leakage analysis and volumetric efficiency estimation were carried out for this expander.
- volumetric expander /
- spherical rolling rotor /
- intake structure /
- organic rankine cycle

HTML全文

图 1 膨胀机三维结构图

下载: 全尺寸图片幻灯片

图 2 球体结构图

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图 3 球壳结构图

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图 4 膨胀机整体结构剖面图

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图 5 滚珠转子运动轨迹示意图

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图 6 滚珠转子移动后方空间容积、压力变化图

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图 7 球体受力示意图

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图 8 球壳环槽受力图

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图 9 优化进气结构的膨胀机球体图

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图 10 优化进气结构的膨胀机球体三维图

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