喷雾冷却式湿蒸汽装置蒸汽流动参数的预测

李涛, 张涛, 于洪仕, 徐英, 李宝, 袁超, 艾克拜尔·麦麦提

计量学报 ›› 2026, Vol. 47 ›› Issue (3) : 349-355.

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计量学报 ›› 2026, Vol. 47 ›› Issue (3) : 349-355. DOI: 10.3969/j.issn.1000-1158.2026.03.05
流量计量

喷雾冷却式湿蒸汽装置蒸汽流动参数的预测

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Prediction of Steam Flow Parameters in Spray Cooled Wet Steam Device

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文章历史 +

摘要

针对喷雾冷却式湿蒸汽流量标准装置的结构特点,推导得出目前研究中常用的焓守恒方程成立的假设条件,并在此基础上通过提出其他假设条件引入动能方程,从而建立装置流动参数的数学模型,模型能够在已知装置入口过热蒸汽和冷却水参数的条件下,预测装置出口混合蒸汽的参数。在实验验证的工况范围内,压力、温度和干度的最大预测相对误差分别为5.35%、2.3%和-0.48%,当干度大于0.9时,压力和温度的预测误差均在±2%以内,预测误差随干度的降低而增大。

Abstract

Taking into account the structural features of the spray cooled wet steam flow standard device, the assumptions necessary for the commonly used enthalpy conservation equation in current researches is derived, and on this basis, other assumptions are introduced to introduce the kinetic energy equation, thus establishing a mathematical model for the flow parameters of the device. The model can predict the parameters of the mixed steam exiting the device under the condition that the inlet superheated steam and cooling water parameters are known. In the experimental verification conditions, the maximum relative errors of pressure, temperature, and dryness are 5.35%, 2.3%, and -0.48%, respectively. When the dryness is greater than 0.9, the prediction errors of pressure and temperature are both within ±2%. The prediction error increases as the dryness decreases.

关键词

流量测量 / 流动参数预测 / 标准装置 / 湿蒸汽 / 饱和蒸汽 / 喷雾冷却 / / 动能

Key words

flow measurement / flow parameter prediction / standard device / wet steam / saturated steam / spray cooled / enthalpy / kinetic energy

引用本文

导出引用
李涛, 张涛, 于洪仕, . 喷雾冷却式湿蒸汽装置蒸汽流动参数的预测[J]. 计量学报. 2026, 47(3): 349-355 https://doi.org/10.3969/j.issn.1000-1158.2026.03.05
LI Tao, ZHANG Tao, YU Hongshi, et al. Prediction of Steam Flow Parameters in Spray Cooled Wet Steam Device[J]. Acta Metrologica Sinica. 2026, 47(3): 349-355 https://doi.org/10.3969/j.issn.1000-1158.2026.03.05
中图分类号: TB937   

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基金

国家自然科学基金(62071321)

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