绗笁绔?/p>
绗笁绔?/p>
姹借疆鏈虹殑鍙樺伐鍐?/p>
chapter 3 The changing condition of Steam turbine
璁捐宸ュ喌锛氳繍琛屾椂鍚勭鍙傛暟閮戒繚鎸佽璁″�笺�?/p>
鍙樺伐鍐碉細鍋忕璁捐鍊肩殑宸ュ喌銆?/p>
缁忔祹鍔熺巼锛氭苯杞満鍦ㄨ璁℃潯浠朵笅鎵�鍙戝嚭鐨勫姛鐜囥�?/p>
棰濆畾鍔熺巼锛氭苯杞満闀挎湡杩愯鎵�鑳借繛缁彂鍑虹殑鏈�澶у姛鐜囥�?/p>
鐮旂┒鐩殑锛氫笉鍚屽伐鍐典笅鐑姏杩囩▼锛岃捀姹芥祦閲忋�佽捀姹藉弬鏁扮殑鍙樺寲锛屼笉鍚岃皟鑺傛柟
寮忓姹借疆鏈哄伐浣滅殑褰卞搷锛涗繚璇佹満缁勫畨鍏ㄣ�佺粡娴庤繍琛屻�?/p>
绗竴鑺?/p>
鍠峰槾鐨勫彉宸ュ喌
The changing condition of a nozzle
鍒嗘瀽锛氬柗鍢村墠鍚庡弬鏁颁笌娴侀噺涔嬮棿鐨勫彉鍖栧叧绯?/p>
涓�銆佹笎缂╁柗鍢寸殑鍙樺伐鍐?/p>
The changing condition of a contracting nozzle
璇曢獙锛氳皟鏁村柗鍢村墠鍚庨榾闂紝鏀瑰彉鍒濆帇鍜岃儗鍘嬶紝娴嬪彇娴侀噺鐨勫彉鍖栥�?/p>
锛堜竴锛?/p>
锛堜竴锛?/p>
鍒濆帇
P
*
0
涓嶅彉鑰岃儗鍘?/p>
P
1
鍙樺寲
锛?/p>
1
锛?/p>
锛?/p>
1
锛?/p>
蔚
n
=1
锛?/p>
P
1
= P
*
0
锛?/p>
G=0
锛?/p>
a-b
锛?/p>
d
锛?/p>
2
锛?/p>
锛?/p>
2
锛?/p>
0
锛?/p>
蔚
n
锛?/p>
蔚
cr
锛?/p>
G
锛?/p>
G
cr
锛?/p>
a-b
1
-c
1
锛?/p>
1
锛?/p>
3
锛?/p>
锛?/p>
3
锛?/p>
蔚
n
=
蔚
cr
锛?/p>
G=G
cr
锛?/p>
a-b
2
-c
2
锛?/p>
e
锛?/p>
4
锛?/p>
锛?/p>
4
锛?/p>
蔚
1d
锛?/p>
蔚
n
锛?/p>
蔚
cr
锛?/p>
G=G
cr
锛?/p>
a-b
3
-c
3
锛?/p>
3
锛?/p>
5
锛?/p>
锛?/p>
5
锛?/p>
蔚
n
=
蔚
1d
锛?/p>
G=G
cr
锛?/p>
a-c
4
锛?/p>
4
锛?/p>
6
锛?/p>
锛?/p>
6
锛?/p>
蔚
n
锛?/p>
蔚
1d
锛?/p>
G=G
cr
锛?/p>
a-c
4
-c
5
锛?/p>
5
鍒楁き鍦嗘柟绋嬶細
锛堜簩锛?/p>
锛堜簩锛?/p>
娴侀噺缃戝浘
鏀瑰彉
p
*
0
鍙緱鍑轰竴绯诲垪鏇茬嚎锛屽嵆娴侀噺缃戝浘
妯潗鏍囷細
蔚
1
= p
1
/p
*
0m
锛?/p>
绾靛潗鏍囷細
尾
m
=G/G
0m
锛?/p>
鍙傚彉閲忥細
蔚
0
= p
*
01
/p
*
0m
p
*
0m
銆?/p>
G
*
0m
锛氬垎鍒负鍒濆帇鏈�澶у�煎拰涓庝箣鐩稿簲鐨勪复鐣屾祦閲忕殑鏈�澶у�笺�?/p>
渚?/p>
1
锛氬凡鐭ワ細
p
0
=9MPa
锛?/p>
p
01
=7.2MPa
锛?/p>
p
1
=6.3MPa
锛?/p>
p
11
=4.5MPa
姹傦細娴侀噺鐨勫彉鍖栥�?/p>