石油机械
石油機械
석유궤계
CHINA PETROLEUM MACHINERY
2001年
2期
28-31
,共4页
液压胀接技术%换热器%特点%应用
液壓脹接技術%換熱器%特點%應用
액압창접기술%환열기%특점%응용
为了减少换热器的管子和管板胀接部位的泄漏，消除换热器与折流板之间的间隙，从根本上解决磨蚀、噪音以及管端焊缝的疲劳裂纹等问题，开发了液袋式液压胀接技术。在分析了液压胀接工作原理及技术特点后，从胀接压力的计算和管板孔的加工两方面探讨了该项技术的应用要点。得出结论：(1)可通过开较大宽度环形槽的方法来降低胀接压力，从而降低胀接成本；(2)由于各接头的胀接压力均匀，采用液压胀接技术可以大大提高换热器胀接接头的可靠性。
為瞭減少換熱器的管子和管闆脹接部位的洩漏，消除換熱器與摺流闆之間的間隙，從根本上解決磨蝕、譟音以及管耑銲縫的疲勞裂紋等問題，開髮瞭液袋式液壓脹接技術。在分析瞭液壓脹接工作原理及技術特點後，從脹接壓力的計算和管闆孔的加工兩方麵探討瞭該項技術的應用要點。得齣結論：(1)可通過開較大寬度環形槽的方法來降低脹接壓力，從而降低脹接成本；(2)由于各接頭的脹接壓力均勻，採用液壓脹接技術可以大大提高換熱器脹接接頭的可靠性。
위료감소환열기적관자화관판창접부위적설루，소제환열기여절류판지간적간극，종근본상해결마식、조음이급관단한봉적피로렬문등문제，개발료액대식액압창접기술。재분석료액압창접공작원리급기술특점후，종창접압력적계산화관판공적가공량방면탐토료해항기술적응용요점。득출결론：(1)가통과개교대관도배형조적방법래강저창접압력，종이강저창접성본；(2)유우각접두적창접압력균균，채용액압창접기술가이대대제고환열기창접접두적가고성。
To reduce the leakage of the tube-plate expanded joint area ofthe heat exchanger and eliminate the clearance between the heat exchanger and baffle plate, and to solve radically the problems of abrasion, noise and fatigue crack of welded seam at tube ends, a hydraulic expanded joint technique is developed. The operating principle and characteristics of the hydraulic expanded joint technique are described. The expansion pressure is calculated and the machining of the tube plate hole is discussed. To decrease the expansion pressure, a wide ring groove can be made in the tube plate hole. The reliability of the heat exchanger is greatly improved by applying the hydraulic expanded joint technique.
