叶片整流器强化涡流管制冷性能研究  

Study on Refrigeration Performance of Enhanced Vortex Tube of Blade Rectifier

作　　者：艾国生[1] 赵志勇[1] 耿远力 刘凤霞[2] AI Guo-sheng;ZHAO Zhi-yong;GENG Yuan-li;LIU Feng-xia(Tarim Oilfield Company,Korla,China,Post Code:841000;School of Chemical Engineering and Environmental Life,Dalian University of Technology,Dalian,China,Post Code:116024)

机构地区：[1]塔里木油田公司,新疆库尔勒841000 [2]大连理工大学化工与环境生命学部,辽宁大连116024

出　　处：《热能动力工程》2021年第8期121-126,共6页Journal of Engineering for Thermal Energy and Power

摘　　要：为解决涡流管工作过程中气体易产生旋涡的问题,设计一种新型叶片整流器,将旋流转化为平行流,实现能量回收利用。搭建实验平台,通过调整装置结构及工况进行相关研究。实验结果表明:压比为2时,与无整流器涡流管相比,相同长径比下安装整流器的涡流管制冷效应(入口与冷端出口温差)提高3.5℃;相同制冷效应下,整流器能将长径比缩短一半;冷流率为0.5时,两端同时安装整流器时单位制冷量最大提升3.5 kJ/kg,只安装在热端时单位制冷量最大提升2.6 kJ/kg,只安装在冷端时单位制冷量最大提升0.64 kJ/kg;当压比较低时整流器叶片入口角度较小有利于提升制冷效果,当压比较高时叶片入口角度较大有利于提升制冷效果。In order to solve the vortex caused in gas in the working process of the vortex tube,a new type of blade rectifier was designed to convert the swirling flow into parallel flow,realize energy recovery and utilization.The relevant research was carried out by building an experimental platform and adjusting the structure and working conditions of the device.The experimental results show that comparing with the vortex tube without rectifier,the refrigeration effect(temperature difference between inlet and cold end outlet)of the rectifier vortex tube is increased by 3.5℃under the same length-diameter ratio when the pressure ratio is 2;the rectifier can reduce the length-diameter ratio by half under the same refrigeration effect;when the cold flow rate is 0.5,rectifiers are installed at both ends at the same time,and the unit cooling capacity is increased by 3.5 kJ/kg,when only installed at the hot end,the unit cooling capacity can be increased by 2.6 kJ/kg at most,when only installed at the cold end,the unit cooling capacity can be increased by 0.64 kJ/kg at most;when the pressure ratio is relatively low,the smaller inlet angle of the rectifier blade is beneficial to improve the refrigeration effect;when the pressure ratio is relatively high,a larger blade inlet angle is beneficial to improve the refrigeration effect.

关 键 词：涡流管 叶片整流器 实验 

分 类 号：TB657[一般工业技术—制冷工程]