焊管
銲管
한관
WELDED PIPE AND TUBE
2014年
7期
59-62
,共4页
孟凡佳%赵庆忠%刘东%刘增强%杨魁
孟凡佳%趙慶忠%劉東%劉增彊%楊魁
맹범가%조경충%류동%류증강%양괴
径向密封%水压差%极限压力
徑嚮密封%水壓差%極限壓力
경향밀봉%수압차%겁한압력
radial sealing%water pressure difference%pressure limit
阐述了4000 t钢管水压试验机的径向密封工作原理及试压过程的电气控制过程。针对试压过程中出现的增压不稳、保压失败等主要问题，从电气控制角度进行了分析，并提出了在增压过程中适当减少高、低速增压的切换次数以及保压过程中适当增大打压参数的解决方案，对径向密封胶圈内水压的控制过程进行了整体优化，使其与钢管内高压水的动态同步性能得到提高，增强了密封胶圈内高压水在保压过程中的稳定性，保证了4000 t钢管水压力径向密封的可靠性。
闡述瞭4000 t鋼管水壓試驗機的徑嚮密封工作原理及試壓過程的電氣控製過程。針對試壓過程中齣現的增壓不穩、保壓失敗等主要問題，從電氣控製角度進行瞭分析，併提齣瞭在增壓過程中適噹減少高、低速增壓的切換次數以及保壓過程中適噹增大打壓參數的解決方案，對徑嚮密封膠圈內水壓的控製過程進行瞭整體優化，使其與鋼管內高壓水的動態同步性能得到提高，增彊瞭密封膠圈內高壓水在保壓過程中的穩定性，保證瞭4000 t鋼管水壓力徑嚮密封的可靠性。
천술료4000 t강관수압시험궤적경향밀봉공작원리급시압과정적전기공제과정。침대시압과정중출현적증압불은、보압실패등주요문제，종전기공제각도진행료분석，병제출료재증압과정중괄당감소고、저속증압적절환차수이급보압과정중괄당증대타압삼수적해결방안，대경향밀봉효권내수압적공제과정진행료정체우화，사기여강관내고압수적동태동보성능득도제고，증강료밀봉효권내고압수재보압과정중적은정성，보증료4000 t강관수압력경향밀봉적가고성。
In this article, it expatiated radial sealing working principle of 4000 t steel pipe hydrostatic tester and electrical control process. According to unstable pressurization,failure pressure holding and other problems in hydraulic pressure test, it put forward solution, including properly reducing switching times of high and low speed pressurization, and increasing pressure parameters during pressure holding course. It also conducted general optimization of radial sealing for water pressure control course, made the synchronization between the water pressure in the sealing ring and the water pressure in steel pipe increase, enhanced stability of high pressure water in sealing ring, and ensured reliability of 4000 t steel pipe water pressure radial sealing.
