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| 减压孔板水力特性的数值模拟 |
| Numerical Simulation of Hydraulic Characteristics about Orifice Plate Relief |
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| DOI：10.3969/j.issn.1671-5322.2013.01.018 |
| 中文关键词: 减压孔板 数值模拟 压降 |
| 英文关键词: orifice plate relief numerical simulation pressure drop |
| 基金项目: |
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| 中文摘要: |
| 减压孔板是消防系统中不可缺少的减压设施,对其正确的设置与计算是消防系统设计中重要的环节.借鉴前人基于设计手册中水头损失公式进行改进的做法,采用数值模拟方法,对减压孔板的水力特性进行了较为系统的研究.结果表明,随着出流流量的增加,减压孔板作用增强,压降幅度增大,孔径d与管径D比(d/D)越小降压效果越明显. |
| 英文摘要: |
| Orifice plate relief is indispensable in the fire protection system decompression facilities.It is important to design and calculate in fire protection system.The previous research of orifice plate relief was based on head loss formula about design manual.In this paper,the numerical simulation method were applied to discuss hydraulic characteristics about orifice plate relief.The results showed that with the increase of flow,pressure drop increased.The effect of pressure drop is obvious as lower d/D. |
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