鎵▼锛氬崟浣嶉噸閲忔恫浣撲粠娉佃繘鍙ｆ埅闈㈠埌娉靛嚭鍙ｆ埅闈㈡墍鑾峰緱鐨勬満姊拌兘銆?/p>
娴侀噺
qv
锛氬崟浣嶆椂闂村唴閫氳繃椋庢満杩涘彛鐨勬皵浣撶殑浣撶Н銆?/p>
鍏ㄥ帇
p
锛氬崟浣嶄綋绉皵浣撲粠椋庢満杩涘彛鎴潰鍒伴鏈哄嚭鍙ｆ埅闈㈡墍鑾峰緱鐨勬満姊拌兘銆?/p>
杞村悜娑℃祦鐨勫畾涔夛細
瀹瑰櫒杞簡涓�鍛紝
娴佷綋寰洟鐩稿浜庡鍣ㄤ篃杞簡涓�鍛紝
鍏舵棆杞閫?/p>
搴﹀拰瀹瑰櫒鐨勬棆杞閫熷害澶у皬鐩哥瓑鑰屾柟鍚戠浉鍙嶏紝
杩欑鏃嬭浆杩愬姩灏辩О杞村悜娑℃祦銆?/p>
褰卞搷锛?/p>
浣挎祦绾垮彂鐢熷亸绉讳粠鑰屼娇杩涘嚭鍙ｉ�熷害涓夎褰㈠彂鐢熷彉鍖栥�備娇鍑哄彛鍦嗗懆閫熷害鍑忓皬銆?/p>
鍙剁墖寮忔车涓庨鏈虹殑鎹熷け锛?/p>
锛堜竴锛夋満姊版崯澶憋細鎸囧彾杞棆杞椂锛岃酱涓庤酱灏併�佽酱涓庤酱鎵?/p>
鍙婂彾杞渾鐩樻懇鎿︽墍鎹熷け鐨勫姛鐜囥�?/p>
锛堜簩锛夊绉崯澶憋細閮ㄥ垎宸茬粡浠庡彾杞幏寰楄兘閲忕殑娴?/p>
浣撲粠楂樺帇渚ч�氳繃闂撮殭鍚戜綆鍘嬩晶娴佸姩閫犳垚鑳介噺鎹熷け銆傛车鐨勫彾杞叆鍙ｅ鐨勫绉崯澶憋紝
涓轰簡鍑忓皬杩欓儴鍒嗘崯澶憋紝涓�鑸湪鍏ュ彛澶勯兘瑁呮湁瀵嗗皝鐜�?/p>
锛堜笁锛夛紝娴佸姩鎹熷け锛氭祦浣撳拰
娴侀亾澹侀潰鐢熸懜宸紝
娴侀亾鐨勫嚑浣曞舰鐘舵敼鍙樹娇娴佷綋浜х敓鏃嬫丁锛?/p>
浠ュ強鍐插嚮绛夋墍閫犳垚鐨勬崯
澶便�傚鍙戦儴浣嶏細鍚稿叆瀹わ紝鍙惰疆娴侀亾锛屽帇鍑哄銆?/p>
濡備綍闄嶄綆鍙惰疆鍦嗙洏鐨勬懇鎿︽崯澶憋細
1
銆侀�傚綋閫夊彇
n
鍜?/p>
D2
鐨勬惌閰嶃�?/p>
2
銆侀檷浣庡彾杞洊鏉?/p>
澶栬〃闈㈠拰澹宠厰鍐呰〃闈㈢殑绮楃硻搴﹀彲浠ラ檷浣庘柍Pm2銆?/p>
3
銆侀�傚綋閫夊彇鍙惰疆鍜屽３浣撶殑闂撮殭銆?/p>
杞存祦寮忔车涓庨鏈哄簲鍦ㄥ叏寮�闃�闂ㄧ殑鎯呭喌涓嬪惎鍔紝
鑰岀蹇冨紡娉典笌椋庢満搴斿湪鍏抽棴闃�闂ㄧ殑
鎯呭喌涓嬪惎鍔ㄣ�?/p>
娉典笌椋庢満锛堣鍚庝範棰樼瓟妗堬級
绗竴绔?/p>
1-1
鏈変竴绂诲績寮忔按娉碉紝鍏跺彾杞昂瀵稿涓嬶細
1
b
=35mm,
2
b
=19mm,
1
D
=178mm,
2
D
=381mm,
1
a
飦?/p>
=18
掳锛?/p>
2
a
飦?/p>
=20
掳銆傝娴佷綋寰勫悜娴佸叆鍙惰疆锛屽
n=1450r/min
锛岃瘯
鐢诲嚭鍑哄彛閫熷害涓夎褰紝
骞惰绠楃悊璁烘祦閲?/p>
,
V
T
q
鍜屽湪璇ユ祦閲忔椂鐨勬棤闄愬鍙剁墖鐨勭悊璁烘壃
绋?/p>
T
H
飩?/p>
銆?/p>
瑙?/p>
锛氱敱棰樼煡锛氭祦浣撳緞鍚戞祦鍏ュ彾杞?/p>
鈭?/p>
1
飦?/p>
=90
掳
鍒欙細
1
u
=
1
n
60
D
飦?/p>
=
3
178
10
1450
60
飦?/p>
飥?/p>
飩?/p>
飩?/p>
飩?/p>
=13.51
锛?/p>
m/s
锛?/p>
1
V
=
1
m
V
=
1
u
tg
1
a
飦?/p>
=13.51
飩?/p>
tg
18
掳
=4.39
锛?/p>
m/s
锛?/p>
鈭?/p>
1
V
q
=
飦?/p>
1
D
1
b
1
m
V
=
飦?/p>
飩?/p>
0.178
飩?/p>
4.39
飩?/p>
0.035=0.086
锛?/p>
3
m
/s
锛?/p>
鈭?/p>
2
m
V
=
1
2
2
V
q
D
b
飦?/p>
=
0.086
0.381
0.019
飦?/p>
飩?/p>
飩?/p>
=3.78
锛?/p>
m/s
锛?/p>
2
u
=
2
D
60
n
飦?/p>
=
3
381
10
1450
60
飦?/p>
飥?/p>
飩?/p>
飩?/p>
飩?/p>
=28.91
锛?/p>
m/s
锛?/p>
2
u
V
飩?/p>
=
2
u
-
2
m
V
ctg
2
a
飦?/p>
=28.91-3.78
飩?/p>
ctg20
掳
=18.52
锛?/p>
m/s
锛?/p>