一种新型单喷嘴旋流水力喷射器的性能分析  

PERFORMANCE ANALYSIS OF A NOVEL SINGLE NOZZLE SWIRL HYDRAULIC EJECTOR

作　　者：冯贺 王萌 陶盛洋 唐强 Feng He;Tao Shengyang;Wang Meng;Tang Qiang(Beijing Hanghua Energy Conservation&Environmental Protection Technology Co.,Ltd.,Beijing 100176;Beijing Aerospace Petrochemical Technology&Equipment Engineering Co.,Ltd.,Beijing 100176)

机构地区：[1]北京航化节能环保技术有限公司,北京100176 [2]北京航天石化技术装备工程有限公司,北京100176

出　　处：《大氮肥》2025年第2期117-121,共5页Large Scale Nitrogenous Fertilizer Industry

摘　　要：水力喷射器因其工作流体可循环使用且具有自吸性,应用前景广阔。传统多喷嘴水力喷射器适用于高压比、低容积喷射系数的工况。针对氨气、废气等尾气吸收工艺的低压比、高容积喷射系数的工艺需求,在水力喷射器中引入液相旋流喷嘴,使动力流体形成大锥角的满锥水幕,实现高容积喷射系数的新型旋流水力喷射器。现有的水力喷射器设计方法理论依据局限性大、精度低,通过实验分析了动力流体压力、面积比和喉嘴距等参数对单喷嘴旋流水力喷射器的抽吸压差、极限压差和容积喷射系数的影响规律,可用于预测不同工况下的喷射器性能,并为新型旋流水力喷射器的优化设计提供参考。Hydraulic ejectors are widely applicable due to their recyclable working fluid and self-priming capability.Traditional multinozzle hydraulic ejectors are suitable for high pressure ratio and low volumetric entrainment coefficient conditions.To meet the process demands of low pressure ratio and high volumetric entrainment coefficient scenarios(e.g.,ammonia and exhaust gas absorption),a liquid phase swirl nozzle was integrated into the hydraulic ejector.This innovation enables the power fluid to form a full cone water curtain with a large cone angle,achieving a high volumetric entrainment coefficient.Existing design methods for hydraulic ejectors suffer from theoretical limitations and low precision.Experimental investigations were conducted to analyze the effects of power fluid pressure,area ratio,and nozzle-to-throat distance on suction pressure difference,maximum pressure difference,and volumetric entrainment coefficient in single nozzle swirl hydraulic ejectors.The results provide insights for predicting ejector performance under varying conditions and optimizing the design of novel swirl hydraulic ejectors.

关 键 词：单喷嘴 水力喷射器 优化设计 面积比 喉嘴距 

分 类 号：TH137[机械工程—机械制造及自动化]