由于鋼波紋涵管在制造過程中的壁厚減薄,實際壁厚與名義壁厚有所差異,名義波形與實際波形也存在較大差別,這樣使波紋涵管由于尺寸和形狀不均勻而產生應變集中的現象。石油系統中,油田與煉油廠及油碼頭的輸油管線上均使用金屬軟管柔性連接。
鋼波紋涵管(guan)對道路安全運行有重(zhong)要(yao)作(zuo)用(yong)
鋼(gang)波(bo)(bo)紋(wen)涵管(guan)(guan)在這(zhe)些管(guan)(guan)道上可以(yi)起(qi)到消除噪音,抗震動(dong)的(de)(de)(de)(de)功能(neng)。波(bo)(bo)紋(wen)涵管(guan)(guan)的(de)(de)(de)(de)成形(xing)前后院,表面積發生了變化。其波(bo)(bo)峰和波(bo)(bo)谷處因(yin)冷擠壓(ya)而產生加工硬化現象,它可以(yi)提高材(cai)(cai)料(liao)的(de)(de)(de)(de)疲(pi)勞極(ji)限(xian),但波(bo)(bo)紋(wen)涵管(guan)(guan)在制(zhi)造過程中(zhong)是(shi)兩向拉伸的(de)(de)(de)(de),預拉伸同時(shi)降低了材(cai)(cai)料(liao)的(de)(de)(de)(de)延(yan)(yan)性,隨著冷軋縮量的(de)(de)(de)(de)增(zeng)加,鋼(gang)的(de)(de)(de)(de)強(qiang)度,屈服點,硬度增(zeng)大(da),延(yan)(yan)伸率、斷面收縮率,沖(chong)擊韌(ren)性下井。
鐵路鋼(gang)波紋管
尺寸變異的(de)影響(xiang)鋼鐵(tie)高爐(lu)上多處(chu)部位選用(yong)(yong)(yong)金屬(shu)軟管,如爐(lu)頂排壓系統管道(dao)中(zhong)(zhong)的(de)軟連(lian)(lian)接,煤氣(qi)導出(chu)管中(zhong)(zhong)的(de)軟連(lian)(lian)接,各個部位都需(xu)要用(yong)(yong)(yong)到(dao)金屬(shu)軟連(lian)(lian)接,金屬(shu)軟連(lian)(lian)接在這些熱(re)膨脹管路中(zhong)(zhong)起到(dao)位移補償器作用(yong)(yong)(yong)。用(yong)(yong)(yong)于火力發電(dian)站(zhan)站(zhan)內網(wang)與外網(wang)管線(xian)的(de)金屬(shu)軟連(lian)(lian)接,還用(yong)(yong)(yong)于發電(dian)機組的(de)減震(zhen),消除噪音(yin),城(cheng)市供熱(re)管網(wang)系統也使用(yong)(yong)(yong)金屬(shu)軟連(lian)(lian)接。
對(dui)管道(dao)(dao)的(de)(de)(de)安(an)全運行(xing)也有較大(da)作用(yong)。量固(gu)定支(zhi)架之(zhi)間(jian)蒸汽直(zhi)埋管道(dao)(dao)的(de)(de)(de)縱剖面示意圖(tu)。以前通(tong)常把靠近(jin)固(gu)定支(zhi)架安(an)裝的(de)(de)(de)波(bo)紋(wen)(wen)補(bu)(bu)(bu)償器(qi)(qi)成為(wei)單向波(bo)紋(wen)(wen)補(bu)(bu)(bu)償器(qi)(qi)(因(yin)此此時的(de)(de)(de)波(bo)紋(wen)(wen)補(bu)(bu)(bu)償器(qi)(qi)單側(ce)吸收管道(dao)(dao)熱膨脹(zhang)),把安(an)裝在(zai)兩(liang)固(gu)定支(zhi)架的(de)(de)(de)管段中間(jian)處的(de)(de)(de)波(bo)紋(wen)(wen)補(bu)(bu)(bu)償器(qi)(qi)成為(wei)雙(shuang)向波(bo)紋(wen)(wen)補(bu)(bu)(bu)償器(qi)(qi)(因(yin)為(wei)此時的(de)(de)(de)波(bo)紋(wen)(wen)補(bu)(bu)(bu)償器(qi)(qi)雙(shuang)側(ce)吸收管道(dao)(dao)熱膨脹(zhang))。(hanihanbj.com)
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