石油炼制与化工
石油煉製與化工
석유련제여화공
Petroleum Processing and Petrochemicals
2015年
12期
41-46
,共6页
曹晓阳%邓佑鲜%严超宇%魏耀东
曹曉暘%鄧祐鮮%嚴超宇%魏耀東
조효양%산우선%엄초우%위요동
旋风分离器%料腿%翼阀%排料特性
鏇風分離器%料腿%翼閥%排料特性
선풍분리기%료퇴%익벌%배료특성
cyclone separator%dipleg%trickle valve%discharge characteristics
在内径为150 mm、高为5000 mm 的料腿-翼阀冷态实验装置上,以 FCC 平衡催化剂为实验物料,在颗粒质量流率为0~50 kg∕(m2·s)、负压差为0~10 kPa 的条件下,考察了翼阀出口段直径变化对料腿-翼阀排料特性的影响。结果表明:翼阀的排料存在两种形式,即连续式和间歇式排料;与无缩径的料腿-翼阀系统相比,缩径下料腿-翼阀系统在排料形式、轴向压力以及阀板张角等方面都存在很大的不同,在相同操作条件下,缩径下料腿-翼阀系统的阀板张角均小于无缩径下的阀板张角。
在內徑為150 mm、高為5000 mm 的料腿-翼閥冷態實驗裝置上,以 FCC 平衡催化劑為實驗物料,在顆粒質量流率為0~50 kg∕(m2·s)、負壓差為0~10 kPa 的條件下,攷察瞭翼閥齣口段直徑變化對料腿-翼閥排料特性的影響。結果錶明:翼閥的排料存在兩種形式,即連續式和間歇式排料;與無縮徑的料腿-翼閥繫統相比,縮徑下料腿-翼閥繫統在排料形式、軸嚮壓力以及閥闆張角等方麵都存在很大的不同,在相同操作條件下,縮徑下料腿-翼閥繫統的閥闆張角均小于無縮徑下的閥闆張角。
재내경위150 mm、고위5000 mm 적료퇴-익벌랭태실험장치상,이 FCC 평형최화제위실험물료,재과립질량류솔위0~50 kg∕(m2·s)、부압차위0~10 kPa 적조건하,고찰료익벌출구단직경변화대료퇴-익벌배료특성적영향。결과표명:익벌적배료존재량충형식,즉련속식화간헐식배료;여무축경적료퇴-익벌계통상비,축경하료퇴-익벌계통재배료형식、축향압력이급벌판장각등방면도존재흔대적불동,재상동조작조건하,축경하료퇴-익벌계통적벌판장각균소우무축경하적벌판장각。
A cold model experiment was conducted in a cyclone dipleg with 150 mm inner diameter and 5 000 mm high fitted with trickle valve. FCC equilibrium catalyst was used as experimental materi-als. The effect of outlet inner diameter on the discharge characteristics of cyclone dipleg with trickle valve under the conditions of solid mass flux (Gs )of 0—50 kg∕(m2 ·s)and negative pressure difference (ΔP )of 0—10 kPa was investigated. The experimental results show that there are two types of dischar-ges,i.e. continuous discharge and intermittent discharge. The discharge forms,axial pressures and flapper plate opening angle were affected by changes of ID of trickle valve outlet,compared with conven-tional cyclone dipleg-trickle valve. Under the same operating conditions,the flapper plate opening an-gles of the cyclone dipleg-trickle valve with smaller ID of outlet pipe are all less than the case with larger ID of trickle valve outlet.