dn50×3.5的无缝钢管能承受多少压力？ dn50的无缝钢管，壁厚4mm，能承受多大压力
\u65e0\u7f1d\u94a2\u7ba1\u58c1\u539a5.5MM\u80fd\u627f\u53d7\u591a\u5c11\u538b\u529b\u65e0\u7f1d\u94a2\u7ba1\u627f\u538b\u7b97\u6cd5\uff1a\u4e00\uff1a\u4ee5\u77e5\u65e0\u7f1d\u7ba1\u65e0\u7f1d\u94a2\u7ba1\u5916\u5f84\u89c4\u683c\u58c1\u539a\u6c42\u80fd\u627f\u53d7\u538b\u529b\u8ba1\u7b97\u65b9\u6cd5 \uff08\u94a2\u7ba1\u4e0d\u540c\u6750\u8d28\u6297\u62c9\u5f3a\u5ea6\u4e0d\u540c\uff09\u538b\u529b=\uff08\u58c1\u539a*2*\u94a2\u7ba1\u6750\u8d28\u6297\u62c9\u5f3a\u5ea6\uff09/\uff08\u5916\u5f84*\u7cfb\u6570\uff09
\u4e8c\uff1a\u4ee5\u77e5\u65e0\u7f1d\u7ba1\u65e0\u7f1d\u94a2\u7ba1\u5916\u5f84\u548c\u627f\u53d7\u538b\u529b\u6c42\u58c1\u539a\u8ba1\u7b97\u65b9\u6cd5\uff1a\u58c1\u539a=\uff08\u538b\u529b*\u5916\u5f84*\u7cfb\u6570\uff09/\uff082*\u94a2\u7ba1\u6750\u8d28\u6297\u62c9\u5f3a\u5ea6\uff09
\u4e09\uff1a\u94a2\u7ba1\u538b\u529b\u7cfb\u6570\u8868\u793a\u65b9\u6cd5\uff1a\u538b\u529bP<7Mpa \u7cfb\u6570S=8\uff0c7<\u94a2\u7ba1\u538b\u529bP<17.5 \u7cfb\u6570S=6
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\u8bbe\u6750\u6599\u7684\u6297\u62c9\u5f3a\u5ea6\u4e3a\u03c3\uff0c\u538b\u529b\u4e3aP\uff0c\u7ba1\u5b50\u5916\u5f84D\uff1b \u7ba1\u5b50\u58c1\u539a\u03b4=\uff08P*D\uff09/\uff082*\u03c3/S\uff09 \u5176\u4e2dS \u4e3a\u5b89\u5168\u7cfb\u6570\uff1b \u56e0\u4e3aP\u5c0f\u4e8e7MPa,S\u9009S=8\uff1b P\u5c0f\u4e8e17.5MPa,S\u9009S=6\uff1b P\u5927\u4e8e17.5MPa,S\u9009S=4\uff1b \u6211\u4eec\u9009\u5b89\u5168\u7cfb\u6570\u4e3aS=6; \u900920\u94a2\u6297\u62c9\u5f3a\u5ea6\u4e3a410MPa, \u6545\u7ba1\u5b50\u53ef\u627f\u53d7\u7684\u538b\u529bP=\uff082*\u03c3/S*\u03b4\uff09/D =(2*410/6*3)/(10+6) =26.25MPa>\u8bbe\u5b9a17.5 \u6545\u5b89\u5168\u7cfb\u6570\u53d6S=4 \u6545\u7ba1\u5b50\u53ef\u627f\u53d7\u7684\u538b\u529bP=\uff082*\u03c3/S*\u03b4\uff09/D =(2*410/4*3)/(10+6) =39.375MPa
计算假设管道材质是Q235B，几何尺寸是60.3x3.5，
厚度负偏差是12.5%，
腐蚀余量取3.0毫米，
计算方法采用GB/T 20801.3-2006公式1。
绛旓細DN50脳3.5鐨勬棤缂濋挗绠¤兘鎵鍙2.3鍏枻鍘嬪姏锛岃绠楀亣璁剧閬撴潗璐ㄦ槸Q235B锛屽嚑浣曞昂瀵告槸60.3x3.5锛屽帤搴﹁礋鍋忓樊鏄12.5%锛岃厫铓浣欓噺鍙3.0姣背锛岃绠楁柟娉曢噰鐢℅B/T 20801.3-2006鍏紡1銆
绛旓細鍏蜂綋鍙弬鑰冮攨鐐夊己搴﹁绠楁爣鍑嗭細16507鍜16508.涓鑸皬绠″緞鐨勭瀛愶紝3涓绫崇殑澹佸帤锛屾壙鍙3,4鍏嗗笗浠ヤ笂鏄病闂鐨勩傝鏉愭枡鐨勬姉鎷夊己搴︿负蟽锛屽帇鍔涗负P锛岀瀛愬寰凞锛 绠″瓙澹佸帤未=锛圥*D锛/锛2*蟽/S锛 鍏朵腑S 涓哄畨鍏ㄧ郴鏁帮紱 鍥犱负P灏忎簬7MPa,S閫塖=8锛 P灏忎簬17.5MPa,S閫塖=6锛 P澶т簬17.5MPa,S閫塖=4锛 ...
绛旓細鍙互浣跨敤锛屼絾鎵挎彃鐒婄殑寮哄害涓嶅強瀵圭剨锛屽鏋滄媿鐗囬獙鏀堕氫笉杩囦篃涓嶅ソ锛屽缓璁壙鎻掔剨鐢ㄤ簬DN50鍙婁互涓嬬殑绠￠亾锛孌N50浠ヤ笂杩樻槸搴旇瀵圭剨
绛旓細20鍙风殑鏃犵紳閽㈢ 3.5姣背澹佸帤 dn 50鐨 浠栧彲浠ユ壙鍙180鍏枻鐨勫帇鍔 涔熸槸澶х害18璧垫嫇鐨勬剰鎬
绛旓細3.5MPA=35KG/骞虫柟鍘樼背=0.35KG/骞虫柟姣背 50鐩村緞鐨勫唴鍥懆闀=50*蟺=157姣背鍙1姣背闀跨殑绠″瓙鏉ョ畻锛屽畠鍐呭洯鐨勯潰绉槸157骞虫柟姣背 鍏舵墍鍙楃殑鍘嬶紙鑳锛夊姏=0.35*157=55KG杩55鍏枻鐨勫姏濡傛灉鑳芥妸绠″瓙鍒嗘垚涓ゅ崐锛屽嵆瑕佺牬鍧忎袱瀵归潰鐨勭澹侊紝璁剧澹佸帤涓篨锛屽鍘氬彈鍔=55/2=12.5鍏枻璇锋敞鎰忥紝鎴戜滑鐜板湪鐨勫...
绛旓細鏃犵紳閽㈢鍏О鐩村緞涓庡寰勫鐓ц〃濡備笅鍥撅細涓鑸鐨勬棤缂濋挗绠鐨勭敓浜у伐鑹鍙互鍒嗕负鍐疯涧涓庣儹杞т袱绉嶏紝澶栬涓婂喎杞ф棤缂濋挗绠¤鐭簬鐑涧鏃犵紳閽㈢锛屽喎杞ф棤缂濋挗绠＄殑澹佸帤涓鑸瘮鐑涧鏃犵紳閽㈢瑕佸皬銆備絾鏄〃闈㈢湅璧锋潵姣斿帤澹佹棤缂濋挗绠℃洿鍔犳槑浜傝〃闈㈡病鏈夊お澶氱殑绮楃硻锛屽彛寰勪篃娌℃湁澶鐨勬瘺鍒恒傚喎杞х鐨勬渶澶у叕绉扮洿寰勪负200 mm锛岀儹杞х鐨勬渶...
绛旓細姣忕背23鍏冨乏鍙筹紝鏃犵紳闀閿閽㈢DN50*3.5澶х害鍦23鍏冨乏鍙抽挶涓绫筹紝璁＄畻鍋囪閽㈢甯傚満浠锋牸鏄湪姣忓惃4500鍏冦
绛旓細甯哥敤閽㈢瑙勬牸琛ㄥ鍥炬墍绀猴細澶у寰勭郴鍒楋紝瑙勬牸锛孌N-鍏О鐩村緞锛屝わ紞澶栧緞锛 DN10鈥斝14mm锛孌N15鈥斝18mm锛孌N20鈥斝25mm锛孌N25鈥斝32mm锛孌N32鈥斝38mm锛孌N40鈥斝45mm锛DN50鈥斝57mm锛孌N65鈥斝76mm锛孌N80鈥斝89mm锛孌N100鈥斝108mm锛孌N125鈥斝133mm锛孌N150鈥斝159mm锛孌N175鈥斝194mm锛孌N...
绛旓細| DN15 | 21.3mm | | DN20 | 26.9mm | | DN25 | 33.7mm | | DN32 | 42.4mm | | DN40 | 48.3mm | | DN50 | 60.3mm | | DN65 | 76.1mm | | DN80 | 89mm | 瑙ｉ噴锛1. 鏃犵紳閽㈢鐨勫叕绉扮洿寰勪笌澶栧緞涔嬮棿鐨勫叧绯绘槸鍥哄畾鐨勶紝浣嗕細鍥犱负涓嶅悓鐨勭敓浜ф爣鍑嗚屾湁鎵宸紓銆備笂杩拌〃鏍间腑鐨勬暟鎹...
绛旓細鏃犵紳閽㈢瑙勬牸鍨嬪彿鐩村緞琛ㄥ涓嬶紙DN-鍏О鐩村緞锛屝-澶栧緞锛夛細DN15-褎22mm锛孌N20-褎27mmDN25-褎34mm锛孌N32-褎42mmDN40-褎48mm锛DN50-褎60mmDN65-褎76锛73锛塵m锛孌N80-褎89mmDN100-褎114mm锛孌N125-褎140mmDN150-褎168mm锛孌N200-褎219mmDN250-褎273mm锛涗互鍙奃N300-褎324mmDN350-褎360mm锛孌N400-褎...
