东方汽轮机
東方汽輪機
동방기륜궤
Dangfang Turbine
2015年
3期
14-16
,共3页
旋流器%热应力%启停机%评判
鏇流器%熱應力%啟停機%評判
선류기%열응력%계정궤%평판
swirler%thermal stress%operation cycle%verify
文章首先对某重型燃机旋流器在稳定工况下的热应力分析，校核了旋流器以及螺钉的强度，并对所选取的预紧力和材料进行了分析。其次，计算了旋流器在启停机阶段下的热应力。最后，根据相关经验，提出一种强度评判准则对旋流器在启停机过程中的二次应力进行评判。
文章首先對某重型燃機鏇流器在穩定工況下的熱應力分析，校覈瞭鏇流器以及螺釘的彊度，併對所選取的預緊力和材料進行瞭分析。其次，計算瞭鏇流器在啟停機階段下的熱應力。最後，根據相關經驗，提齣一種彊度評判準則對鏇流器在啟停機過程中的二次應力進行評判。
문장수선대모중형연궤선류기재은정공황하적열응력분석，교핵료선류기이급라정적강도，병대소선취적예긴력화재료진행료분석。기차，계산료선류기재계정궤계단하적열응력。최후，근거상관경험，제출일충강도평판준칙대선류기재계정궤과정중적이차응력진행평판。
Firstly, the thermal stress for swirler of a heavy gas turbine under stable state is analyzed. Then the strength of swirler and bolt are checked, respectively the pre-stress on bolt and material of swirler are discussed. Secondly, the thermal stress for swirler under the operation cycle progress is simulated. At last, based on the related experience, a new criterion for thermal stress is proposed for verifying the swirler in the operation cycle progress.
