中国化工装备
中國化工裝備
중국화공장비
China Chemical Industry Equipment
2015年
5期
44-48
,共5页
布袋除尘器%旁路%有限元%热应力%分析
佈袋除塵器%徬路%有限元%熱應力%分析
포대제진기%방로%유한원%열응력%분석
bag precipitator%bypass%finite element%thermal stress%analysis
基于ANSYS软件建立了某石化厂现役布袋除尘器的有限元模型并模拟了其温度场分布.在旁路工况的负压和正压情形下分别对模型进行了热应力计算和分析.计算结果表明,中间的柱脚均出现了与基础脱离现象,最大脱离位移已达4.5689mm.布袋除尘器箱体顶板处最大应力已达202MPa,接近于相应材料的屈服强度.说明旁路保护虽然能够对布袋除尘器起到有效的保护作用,但保护效果是短时的,必须采取相应措施进行维护.
基于ANSYS軟件建立瞭某石化廠現役佈袋除塵器的有限元模型併模擬瞭其溫度場分佈.在徬路工況的負壓和正壓情形下分彆對模型進行瞭熱應力計算和分析.計算結果錶明,中間的柱腳均齣現瞭與基礎脫離現象,最大脫離位移已達4.5689mm.佈袋除塵器箱體頂闆處最大應力已達202MPa,接近于相應材料的屈服彊度.說明徬路保護雖然能夠對佈袋除塵器起到有效的保護作用,但保護效果是短時的,必鬚採取相應措施進行維護.
기우ANSYS연건건립료모석화엄현역포대제진기적유한원모형병모의료기온도장분포.재방로공황적부압화정압정형하분별대모형진행료열응력계산화분석.계산결과표명,중간적주각균출현료여기출탈리현상,최대탈리위이이체4.5689mm.포대제진기상체정판처최대응력이체202MPa,접근우상응재료적굴복강도.설명방로보호수연능구대포대제진기기도유효적보호작용,단보호효과시단시적,필수채취상응조시진행유호.
The finite element model of bag precipitator is set up with ANSYS, and the temperature distribution is simulated. The thermal stress calculation and analysis subjected to negative pressure and positive pressure under bypass condition are completed. The calculation results show that the middle columns are divorced from the foundation and the maximum displacement has been reached 4.5689mm. The maximum stress of the tope plate of bag precipitator has been reached 202MPa, which is close to the material yield strength. The bag precipitator is under the effective protection because of the bypass condition, however, the protection is instant and the corresponding measures must be taken.
