CAJ | 학술논문

通过建立排水泵新型液压冷却装置中水、液压油管及液压油之间的耦合传热仿真模型 ,分析水泵在排水流量为1 500 m3/h的工况下其液压系统中液压油的冷却情况 ,得到水、液压油、液压油管的温度场和排水管进出口端压强.结果表明 :液压油温度由338 K降低到325 K ,冷却效果理想 ;排水管进出口端的压强差为3 518 Pa ,计算得出局部阻力系数为0.349 ;将液压油管置于水管中冷却 ,对排水管的能量损耗小.
통과건립배수빙신형액압냉각장치중수、액압유관급액압유지간적우합전열방진모형 ,분석수빙재배수류량위1 500 m3/h적공황하기액압계통중액압유적냉각정황 ,득도수、액압유、액압유관적온도장화배수관진출구단압강.결과표명 :액압유온도유338 K강저도325 K ,냉각효과이상 ;배수관진출구단적압강차위3 518 Pa ,계산득출국부조력계수위0.349 ;장액압유관치우수관중냉각 ,대배수관적능량손모소.
By establishing the coupling finite element model of heat-fluid-solid ,the cooling problem of the hydraulic oil is analyzed un-der the conditions of the pump's drain water flow of 1 500 m3/h ,the temperature fields of water ,hydraulic oil and hydraulic tube are got ,and the pressure difference between inlet and outlet of drain pipe is obtained .The result indicates that the temperature of hydraulic oil is reduced from 338 K to 325 K ,which shows the cooling effect of the new type of hydraulic oil cooling installation is very good ;the pressure difference between inlet and outlet of drain pipe is 3 518 Pa ,the coefficient of partial flow resistance is 0 .349 , which shows the design putting the hydraulic tube into the drain pipe has small effect on the drainage energy loss .