高压设备密封讲解课件

第四章高压设备密封SealsofequipmentunderHighPressureEvaluauononr.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL本章知识点结构第四章第一节」高压设备特点高压设备密封分类及形式掌握第二节典型密封结构设计计算重点第三节高压管道密封超高压容器密封了解Evaluauononr.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL§41.1高压设备密封特点①采用金属垫片:常用的金属垫片材料为退火铝、退火紫铜、软钢及不锈钢。②采用窄面密封尽可能采用自紧密封Evaluauononr.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL§412高压密封分类及型式按密封垫片受力情况,可分为强制式密封:如平垫密封、卡扎里密封、透镜垫密封。自紧式密封:如“C”形、“O”形环密封、三角垫密封、楔形垫密封、伍德密封。半自紧式密封:如双锥环密封、八角垫。Evaluauononr.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL§4.1.2.,2高压密封型式1)平垫密封结构简单,加工方便,在直径小,压力不高的场合密封可靠。适用于温主螺母度T<200℃,压垫圈3顶盖力<32MPa,Di<4-主螺栓800mm。5-筒体端部6-平垫片平垫密封结构Evaluauononr.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL主螺母垫圈平盖主螺栓」平垫片筒体端部平垫密封结构Evaluauononr.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL2)卡扎里密封套筒具有上下两段平盖锯齿形螺纹,下段预紧螺栓与筒体联接部分为螺纹套筒连续螺纹,上段开有6个间隔为30°槽压环的间断螺纹。螺纹套筒密封垫密封力:螺栓介质压力:筒体螺纹外螺纹卡扎里密封适用于大直径和压力较大的场合。最大优点:拆装方便。Evaluauononr.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL螺栓、螺母压环平盖密封垫筒体端部内螺纹卡扎里密封Evaluauononr.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL1-主蜾栓主螺母垫圈4顶盖紫栓5—预紧蝶6-筒体端部法兰7一压环改良卡扎里密封结构8-密封垫Evaluauononr.chAsposeslidesforNET4odientPEvaluationonly.CreatedwithAsposeSlidesforNET4.0dientProfilo71Copyright2004-2017AsposePtyL主螺栓主螺母垫圈预紧螺栓压环密封垫筒体端改良卡扎里密封Evaluauononr.chAsposeslidesforNET4o