CAJ | 학술논문

针对某汽封压力调节器汽封系统压力波动较大的问题，通过理论分析与计算，得出了影响汽封系统压力波动的主要原因，发现汽封压力波动的主要原因为喷油嘴尺寸调整不当或进汽窗口与排汽窗口型线不匹配，进而针对两种可能的原因，加工调节套筒及不同通径喷油嘴试验件并进行配机试验。通过试验表明，影响汽封系统压力波动的主要原因为喷油嘴通径调整不当，当改变喷油嘴通径为φ2.5mm 时，可维持汽封系统压力与汽封抽汽系统压力在技术要求规定值之内，并可大幅减少汽封系统压力波动。
침대모기봉압력조절기기봉계통압력파동교대적문제，통과이론분석여계산，득출료영향기봉계통압력파동적주요원인，발현기봉압력파동적주요원인위분유취척촌조정불당혹진기창구여배기창구형선불필배，진이침대량충가능적원인，가공조절투통급불동통경분유취시험건병진행배궤시험。통과시험표명，영향기봉계통압력파동적주요원인위분유취통경조정불당，당개변분유취통경위φ2.5mm 시，가유지기봉계통압력여기봉추기계통압력재기술요구규정치지내，병가대폭감소기봉계통압력파동。
By theoretical calculations and analysis, two main causes which may lead to pressure fluctuation in a steam turbine seal system are identified, which are the improper size of oil injection nozzle , the mismatch of steam inlet and outlet ports in the adjusting cylinder of a seal gas regulator .A series of testing with redesigned adjusting cylinder and different-sized oil injection nozzles are conducted, which can prove that the oil injection attributes to the pressure fluctuation, when the diameter of the oil injection is 2.5mm, the seal pressure and the seal elicit pressure are in the allowed value and the seal pressure fluctuation reduces greatly.