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摘要为进一步探究Novec1230的施放方法和施放效果，了解其在管道流动中的沿程阻力损失，用性质相近的清水来代替Novec1230为实验试剂，从灭火剂气液比，管道长度及喷口孔径三个方面测量管道的压力差，采用控制变量法，通过对实验数据的分析，研究管道压力差和气液比，管道长度及喷口孔径的基本关系，进而得到管道沿程阻力损失和这三个参数的基本关系，分析在喷射效果最好时灭火剂所处的状态，其最终目的是为了控制流量，为Novec1230灭火剂管道的设计作基础。实验表明，存在一个最佳装样量V在1000ml附近，使得管道阻力损失达到最大，即流量达到最大值，此时施放效果最佳；管道阻力损失随着测量长度的增大而增大，随着孔径的增大也增大。7871
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关键词 Novec1230 灭火剂 清水 施放方法 沿程阻力损失
毕业设计说明书（论文）外文摘要
Title Exploring The Casting Method Of Novec1230
Abstract
In order to further explore the casting method and casting animation of Novec1230 and understand the losses of frictional resistance when it flows in pipe, we use water with similar nature instead of Novec1230 as experimental reagent to measure the different pipeline pressure from three aspects of extinguisher gas' liquid ratio, pipe length and vent aperture. We get the basic relationship between the losses of frictional resistance and the three parameters through the method of control variables, the analysis of experimental data, the research of relations between pipeline pressure and gas-liquid ratio, pipe length and the nozzle aperture. The ultimate goal of analysis of the state of extinguishing agent when it’s spraying effect is best to control the flow, which is the basis for the design of Novec1230 extinguishing agent's pipeline.Experiments show that there is an optimum sample loading volume about 1000 milliliter, making the loss of the piping resistance for maximum, that is, the flow reaches its maximum,at this time it makes the best cast effect. The loss of the piping resistance increases with the measurement of length increasing, also increases with the increase of aperture.
Keywords Novec1230 extinguishing agent water casting method losses of frictional resistance
目 录
1 绪论 1
1.1 课题目的及意义 1
1.2 Novec1230的性质及发展现状 1
1.2.1 Novec1230的基本性质 1
1.2.2 Novec 1230灭火剂的应用性能 2
1.2.3 Novec 1230的技术优势 3
1.2.4 Novec 1230的发展现状 4
1.3 本文的主要研究内容 5
2 理论基础 6
2.1 流体运动 6
2.1.1 雷诺实验理论 6
2.1.2 工业管道实验曲线 8
2.1.3 层流和湍流的特点 9
2.2 管道流动沿程阻力计算 9
2.3 流体理论在本实验中的具体应用 12
3 灭火剂施放方案选择 14
4 Novec 1230代料系统充装条件与施放规律的实验研究 16
4.1 Novec 123 灭火剂代料 16
4.2 实验装置 16
4.3 实验方案与条件 18
4.4 实验步骤 18
4.5 实验结果与讨论 19
4.5.1 空放管道压力修正 19
4.5.2 管道沿程阻力损失与灭火剂装样量的关系研究 21