本文選題：夾套 + 機(jī)械蒸汽再壓縮�。� 參考：《新疆大學(xué)》2015年碩士論文

【摘要】：MVR(Mechanical Vapor Recompression)熱泵技術(shù)是當(dāng)前蒸發(fā)過(guò)程最高效環(huán)保的節(jié)能技術(shù)。為盡可能接近蒸發(fā)系統(tǒng)的實(shí)際效果,盡快將由單螺桿水蒸汽壓縮機(jī)驅(qū)動(dòng)的夾套式MVR熱泵蒸發(fā)系統(tǒng)應(yīng)用于工業(yè)生產(chǎn),同時(shí)為某化工企業(yè)后續(xù)的大規(guī)模節(jié)能改造奠定一定的實(shí)驗(yàn)基礎(chǔ),為此設(shè)計(jì)、制造、裝配了該套系統(tǒng),并對(duì)其展開(kāi)了工業(yè)化應(yīng)用研究。通過(guò)對(duì)系統(tǒng)的理論分析、設(shè)備設(shè)計(jì)與分析、運(yùn)行實(shí)驗(yàn)及綜合性能分析、節(jié)能經(jīng)濟(jì)性分析及示范應(yīng)用等相關(guān)研究,得到如下結(jié)論:(1)溫差最高已達(dá)到26.54℃,壓縮比最高已達(dá)到2.43,蒸發(fā)量最高已達(dá)到316.56kg/h,傳熱系數(shù)最高已達(dá)到1257.8W·m-2·℃-1,COP最高已達(dá)到9.73,SMER最高已達(dá)到15.84kg·kw-1·h-1,絕熱效率最高已達(dá)到0.74,容積效率最高已達(dá)到0.81,均表明新近研發(fā)的單螺桿水蒸汽壓縮機(jī)具有優(yōu)異的性能;(2)單螺桿壓縮機(jī)在頻率50 Hz下運(yùn)轉(zhuǎn)時(shí)的系統(tǒng)性能大大優(yōu)于低頻率運(yùn)轉(zhuǎn),且還不需要補(bǔ)熱,系統(tǒng)應(yīng)盡量維持在高頻率下運(yùn)轉(zhuǎn)以適應(yīng)不同工作負(fù)載的需求;(3)單臺(tái)蒸發(fā)釜在頻率50Hz下運(yùn)轉(zhuǎn)時(shí),系統(tǒng)在蒸發(fā)壓力為65~85 kPa之間運(yùn)行較為合適,在此范圍內(nèi)COP、SMER、絕熱效率和容積效率均具有最大值,說(shuō)明此時(shí)系統(tǒng)存在最佳運(yùn)行工況,在該工況下運(yùn)行最節(jié)能;(4)系統(tǒng)各性能評(píng)價(jià)指標(biāo)均受壓縮機(jī)運(yùn)行頻率、蒸發(fā)壓力(即蒸發(fā)溫度)以及換熱面積的影響;(5)兩臺(tái)蒸發(fā)釜同時(shí)運(yùn)行優(yōu)于單臺(tái)蒸發(fā)釜運(yùn)行,持續(xù)進(jìn)料工況優(yōu)于間歇進(jìn)料工況;(6)系統(tǒng)最大蒸發(fā)量大于250 kg/h,系統(tǒng)運(yùn)行成本節(jié)能經(jīng)濟(jì)性效益最高已達(dá)80%,完全滿足研究項(xiàng)目中對(duì)系統(tǒng)設(shè)備提出的硬性指標(biāo),同時(shí)表明其能夠應(yīng)用于實(shí)際工業(yè)蒸發(fā)過(guò)程。
[Abstract]:MVR(Mechanical Vapor Recompression heat pump technology is the most efficient and environmentally friendly energy saving technology in the evaporation process. In order to be as close as possible to the actual effect of the evaporation system, the clamped MVR heat pump evaporation system driven by a single screw steam compressor is applied to industrial production as soon as possible. At the same time, it lays a certain experimental foundation for the large-scale energy-saving reconstruction of a chemical enterprise. For this purpose, the system is designed, manufactured and assembled, and the industrial application research is carried out. Through theoretical analysis, equipment design and analysis, operation experiment and comprehensive performance analysis, energy-saving economy analysis and demonstration application, it is concluded that the highest temperature difference has reached 26.54 鈩，

本文編號(hào)：1886405