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h1=2939kj/kg¡¢p2=0.078Mpa¡¢h2=2654.8kj/kg ¡¢pc=0.0069Mpa¡¢hc=2391.1kj/kg¡¢?mg=0.95¡£ÊÔÇ󣺻ú×éµÄÆûºÄÂÊd0¡¢ÈȺÄÂÊq0ºÍ»ú×é¾ø¶ÔµçЧÂÊ?eL¡£¼ÆËãʱºöÂÔÐÂÆûºÍ³éÆû¹ÜµÀµÄѹ½µºÍÉ¢ÈÈ¡£ ½â£º¸ù¾Ý»ú×é²ÎÊý²éË®ÕôÆû±íµÃ

h1,=667.2kj/kg h2,=388.73 kj/kg hc,=162.3 h0=3310 kj/kg

¸ù¾Ý»ìºÏʽ¼ÓÈÈÆ÷µÄÈÈƽºâ¿ÉÁгö·½³Ì (1??1)h2??2h2?(1??1??2)hc

h1??1h1?(1??1)h2

°Ñ¸÷²ÎÊýµÄìÊÖµ´úÈëÉÏÁ½Ê½µÃ (1??1)388.73??22654.8?(1??1??2)162.3 667.2??12939?(1??1)388.73 ´ÓÒÔÁ½Ê½½âµÃ?1?0.1092?2?0.063 Ôò»ú×éµÄÆûºÄÂÊΪ d0?

,,,3600=

[(1??1??2)(h0?hc)??1(h0?h1)??2(h0?h2)]?mg3600=4

[(1?0.1092?0.063)?(3310?2391)?0.1092?(3310?2939)?0.063?(3310?2654.8)]?0.95.495[kg/kw.h] ÔòÈȺÄÂÊΪ

q0=d0(h0-h1,)=4.495?(3310-667.2)=11897.25[kj/kw.h] »ú×éµÄ¾ø¶ÔµçЧÂÊ

?el?36003600?=0.303 q011879.2527£®ÒÑÖªÁ½¼¶»ØÈȵÄÆûÂÖ·¢µç»ú×飬ÆäÓйزÎÊýͬϰÌâ26¡£ÈôÁ½¼¶¾ùΪ±íÃæʽ¼ÓÈÈÆ÷£¬¶Ë²î?=5¡æ£¬¼ÆËã

ÏÂÁÐÁ½ÖÖ²»Í¬ÊèË®·½Ê½Ê±µÄd0¡¢q0¡¢?eL£¬ ²¢½áºÏÏ°Ìâ26 ¼ÆËã½á¹û½øÐзÖÎö±È½Ï¡£ £¨1£© ÊèË®×ÔÁ÷ÈëÄýÆûÆ÷£»

£¨2£© Á½¼¶ÊèË®¸÷ÓÃÊèË®±Ã´òÈë¼ÓÈÈÆ÷³ö¿ÚµÄÖ÷Äý½áË®¹ÜÖУ¬²¢ÒÑÖªÆä»ìºÏìÊΪ648kj/kgºÍ

370.3kj/kg¡£

½â £º¸ù¾Ý¶Ë²î¿ÉËã³öÁ½¼¶¼ÓÈÈÆ÷µÄ³ö¿ÚìÊֵΪ: hr1,=645.69 kj/kg hr2,=374.44 kj/kg ¸ù¾Ý±íÃæʽ¼ÓÈÈÆ÷¼°ÄýÆûÆ÷¿ÉÁгöÈÈƽºâ·½³Ì

?1(h1?h1,)?h,r1?hr2, ?2(h2?h2,)?h,r2?hrc,

,, h,rc??1h1??2h,2?(1?1???2)hc °Ñ¸÷²ÎÊýµÄìÊÖµ´úÈëÉÏʽµÃ ?1(2939-667.2)=645.69-374.44

?2(2654.8-388.73)=374.44--hrc,

hrc,= ?1667.2+?2388.73+(1-?1-?2)162.3

´ÓÉÏʽ½âµÃ?1=0.1194 ?2=0.05972? hrc,=239.107kj/kg

Ôò»ú×éµÄÆûºÄÂÊΪ d0?

3600=

[(1??1??2)(h0?hc)??1(h0?h1)??2(h0?h2)]?mg3600[(1?0.1194?0.05972)?(3310?2391)?0.1194?(3310?2939)?0.05972?(3310?2654.8)]?0.95=4.523[kg/kw.h] ÔòÈȺÄÂÊΪ

q0=d0(h0-hr1,)=4.523?(3310-667.2)=12050.67[kj/kw.h] »ú×éµÄ¾ø¶ÔµçЧÂÊ

?el?36003600=0.2987 ?q012050.67,, (2) ¸ù¾ÝÁ½¸ö¼ÓÈÈÆ÷µÄÄÜÁ¿Æ½ºâ¹Øϵ¿ÉµÃ·½³Ì (1??1)hr2??2h2?(1??1??2)hc h,r1??1h1?(1??1)hr2

°Ñ¸÷²ÎÊýµÄìÊÖµ´úÈëÉÏÁ½Ê½µÃ

(1??1)370.3??22654.8?(1??1??2)162.3 648.1??12939?(1??1)370.3 ´ÓÉÏʽ½âµÃ?1=0.10815 Ôò»ú×éµÄÆûºÄÂÊΪ d0?

,?2=0.074425

3600=

[(1??1??2)(h0?hc)??1(h0?h1)??2(h0?h2)]?mg3600[(1?0.10815?0.074425)?(3310?2391)?0.10815?(3310?2939)?0.074425?(3310?2654.8)]?0.95 =4.511[kg/kw.h] ÔòÈȺÄÂÊΪ

q0=d0(h0-hr1,)=4.511?(3310-648.1)=12008.3[kj/kw.h] »ú×éµÄ¾ø¶ÔµçЧÂÊ

?el?36003600=0.2998 ?q01200.38 ÓÉÉÏÊö¼ÆËã½á¹û¿´³ö:»ìºÏʽ¼ÓÈÈÆ÷ÈȾ­¼ÃÐÔ×î¸ß£»ÊèË®Öð¼¶×ÔÁ÷ÈëÄýÆûÆ÷µÄ ±íÃæʽ¼ÓÈÈÆ÷ϵͳµÄÈÈ

¾­¼ÃÐÔ×î²î£»ÊèË®ÊèË®±Ã´òÈë¼ÓÈÈÆ÷³ö¿ÚµÄ±íÃæʽ¼ÓÈÈÆ÷ϵͳÈȾ­¼ÃÐÔ¾ÓÓÚÁ½ÕßÖ®¼ä¡£

28 .ÆûÂÖ·¢µç»ú×éÓйØÊý¾ÝͬϰÌâ26£¬Á½¼¶¾ù²ÉÓûìºÏʽ¼ÓÈÈ£¬Ö÷ÕôÆû¹ÜµÀµÄѹËðÊÇ?p=8%£¬ÊÔÇó»ú×éµÄd0¡¢q0ºÍ?eL²¢ÓëÏ°Ìâ27µÄ½á¹û½øÐбȽϡ£ ½â £ºp,1=(1-?p)p1=0.92?0.59=0.5428Mpa p,2=(1-?p)p2=0.92?0.078=0.07176Mpa

¸ù¾Ý p,1 , p,2 ²éË®ÕôÆû±íµÃ

h,1=653.07kj/kg h,2= 379.40kj/kg ¸ù¾ÝÁ½¸ö¼ÓÈÈÆ÷µÄÄÜÁ¿Æ½ºâ¹Øϵ¿ÉµÃ·½³Ì h,,1??1h1?(1??1)h2

,,, (1??1)h2??2h2?(1??1??2)hc °Ñ¸÷²ÎÊýµÄìÊÖµ´úÈëÉÏÁ½Ê½µÃ

653.07??12939?(1??1)379.40

(1??1)379.40??22654.8?(1??1??2)162.3 ´ÓÉÏʽ½âµÃ?1=0.1069?2=0.0778 Ôò»ú×éµÄÆûºÄÂÊΪ d0?

3600=

[(1??1??2)(h0?hc)??1(h0?h1)??2(h0?h2)]?mg3600

[(1?0.1069?0.0778)?(3310?2391)?0.1069?(3310?2939)?0.0778?(3310?2654.8)]?0.95 =4.512[kg/kw.h] ÔòÈȺÄÂÊΪ

q0=d0(h0-hr1,)=4.512?(3310-653.0)=11988.81[kj/kw.h] »ú×éµÄ¾ø¶ÔµçЧÂÊ ?el?36003600=0.300 ?q011988.8129. ÆûÂÖ·¢µç»ú×éÓйØÊý¾ÝͬϰÌâ26£¬Èô³éÆûìʵÄÀûÓÃϵÊý?=0.98 £¬ÊÔ¼ÆËãÁ½¼¶»ìºÏʽ¼ÓÈÈÆ÷ÓÉÓÚ³é

Æû¹ÜµÀµÄÉ¢ÈÈËðʧÒýÆðµÄ»ú×éÈȺÄÂʵÄÏà¶Ô±ä»¯¡£ ½â ¸ù¾ÝÁ½¸ö¼ÓÈÈÆ÷µÄÄÜÁ¿Æ½ºâ¹Øϵ¿ÉµÃ·½³Ì h,1???1h1?(1??1)h2

,2, (1??1)h???2h2?(1??1??2)hc

, °Ñ¸÷²ÎÊýµÄìÊÖµ´úÈëÉÏÁ½Ê½µÃ

667.2??10.98?2939?(1??1)388.73

(1??1)388.73??20.98?2654.8?(1??1??2)162.3 ´ÓÉÏʽ½âµÃ?1=0.1118?2=0.0818 Ôò»ú×éµÄÆûºÄÂÊΪ d0?

3600=

[(1??1??2)(h0?hc)??1(h0?h1)??2(h0?h2)]?mg3600

[(1?0.1118?0.0818)?(3310?2391)?0.1118?(3310?2939)?0.0818?(3310?2654.8)]?0.95=4.5325[kg/kw.h] ÔòÈȺÄÂÊΪ

q0=d0(h0-hr1,)=4.5323?(3310-667.2)=11933.1661[kj/kw.h]

»ìºÏʽ¼ÓÈÈÆ÷ÓÉÓÚ³éÆû¹ÜµÀµÄÉ¢ÈÈËðʧÒýÆð»ú×éµÄÈȺÄÂʵÄÏà¶Ô±ä»¯Îª:

|q,0?q0||11933.166?11879.25| ?100%??100%

q011879.25 =0.454%

30£®¸ù¾ÝÏ°Ìâ26ÒÑÖªÊý¾Ý£¬Èôͬʱ¿¼ÂÇ?p?8%,??0.98£¬ÊÔ¼ÆËã»ú×éÈȺÄÂʵÄÏà¶Ô±ä»¯¡£ ½â£ºÈôͬʱ¿¼ÂÇ?p?8%,??0.98.

¸ù¾ÝÁ½¸ö¼ÓÈÈÆ÷µÄÄÜÁ¿Æ½ºâ¹Øϵ¿ÉµÃ·½³Ì h,1???1h1?(1??1)h2

,2, (1??1)h???2h2?(1??1??2)hc

, °Ñ¸÷²ÎÊýµÄìÊÖµ´úÈëÉÏÁ½Ê½µÃ

653.07??10.98?2939?(1??1)379.40

(1??1)379.40??20.98?2654.8?(1??1??2)162.3 ´ÓÉÏʽ½âµÃ?1=0.1094 Ôò»ú×éµÄÆûºÄÂÊΪ d0?

?2=0.0787

3600=

[(1??1??2)(h0?hc)??1(h0?h1)??2(h0?h2)]?mg3600

[(1?0.1094?0.0787)?(3310?2391)?0.1094?(3310?2939)?0.0787?(3310?2654.8)]?0.95=4.521[kg/kw.h] ÔòÈȺÄÂÊΪ

q0=d0(h0-hr1,)=4.521?(3310-653.07=12011.98[kj/kw.h]

»ìºÏʽ¼ÓÈÈÆ÷ÓÉÓÚ³éÆû¹ÜµÀµÄÉ¢ÈÈËðʧÒýÆð»ú×éµÄÈȺÄÂʵÄÏà¶Ô±ä»¯Îª:

|q,0?q0||12011.98?11879.25| ?100%??100%

q011879.25 =1.11%

31£®¹ú²ú31-25-7ÐÍÆûÂÖ·¢µç»ú×éÔڶ¹¤¿öʱ£ºp0=3.43Mpa¡¢t0=435¡æ¡¢pc=0.0058Mpa¡¢?mg=0.964£¬Æä»ØÈÈϵͳ¼°ÆûË®ìÊÖµÈçÊéͼ5-45Ëùʾ¡£ÓÃÊÔ´Õ·¨ºÍ½â·½³ÌÇóH5¼ÓÈÈÆ÷Ö÷Äý½áË®³ö¿ÚµÄ»ìºÏìÊ£¬²¢¼ÆËã¸ÃÆûÂÖ·¢µç»ú×éµÄ¾ø¶ÔÄÚЧÂÊ?I¡£

2731.92310.7 H3

3636.32865.92655.72505.8

H4H5 H2H1288.5

801473.1738.97591.6406.3301149.5418.6

½â Áí¸÷¼ÓÈÈÆ÷³ö¿ÚµÄìÊֵΪ

h,r1 ¡¢h,r2 ¡¢h,r3 ¡¢h,r4 ¡¢h,r5 ¡¢h,rr(ΪH4µÄÈë¿ÚìÊ) ¸ù¾Ý¸÷¼ÓÈÈÆ÷µÄÈÈƽºâ¹Øϵ¿ÉÁгöÏÂÁз½³Ì

h,r1 -h,r2= ?1(h1-h,1) (1)

?1((h1- h,2) (2)

h,r3= (?1+?2)h,2+?3h3+(1-?1-?2-?3) h,r4 (3) (1-?1-?2-?3)( h,r4- h,rr)= ?4(h4-h,4) (4) (1-?1-?2-?3) h,rr= (1-?1-?2-?3-?4-?5) h,r5+h,5(?4+?5) (5) ( h,5-h,c) (1-?1-?2-?3-?4-?5)= ?4(h,4- h,5)+ ?5(h5- h,5) (6)

°ÑÒÔÉϸ÷²ÎÊýµÄÖµ´úÈçÉÏʽµÃ

701-574= ?1(3036.3-738.97) (1)

h,r2 -h,r3=?2(h2-h,2)+

?1(738.97-591.6) (2)

437.1= (?1+?2)591.6+?32731.9+(1-?1-?2-?3)406.3 (3) (1-?1-?2-?3)(406.3-288.5)= ?4(2655.7-418.6) (4) (1-?1-?2-?3) 288.5= (1-?1-?2-?3-?4-?5) h,r5+301(?4+?5) (5) ( h,5-149.5) (1-?1-?2-?3-?4-?5)= ?4(418.6-301)+ ?5(2505.8-301)(6)

574-437.1=?2(2865.9-591.6)+

½â(1)¡¢(2)¡¢(3)¡¢(4)¡¢Ê½µÃ

?1=0.05528 ?2=0.05661

?3=0.0433 ?4=0.04654

½«?1 ¡¢ ?2 ¡¢ ?3 ¡¢ ?4 µÄÖµ´úÈë(5),(6)ʽµÃ 254.97=(0.83724--?5) h,5+301?5+14.00854 (a) (h,5-149.5)(0.83724-?5)=5.4731+2204.8?5 (b) Éè?5=0.05´úÈë(1)ʽµÃ

254.97=(0.83724¡ª0.05) h,5+301?0.05+14.00854 ½âµÃ h,5 =286.97kj/kg

ÒÔh,5 =286.97kj/kg´úÈ루b£©Ê½µÃ

(286.97-149.5)(0.83724-?5)=5.4731+2204.8?5 ½âµÃ?5=0.468

Öظ´ÉÏÊö¹ý³Ì¿ÉµÃh,5 =287.02 ?5=0.4658

¾­¹ýÁ½²½ÊÔ´Õ¿É¿´³öh,5 ºÍ ?5±ä»¯ºÍºÜС£¬ ¹Ê¿ÉÈ¡h,5 =287.02 ?5=0.4658 ÆûÂÖ·¢µç»ú×éµÄ¾ø¶ÔÄÚЧÂÊΪ

?i?(1??1??2??3??4??5?)(h0?hc)???i(h0?hi)i?15h0?hrr,

=[(1-0.05528-0.05661-0.00433-0.04654-0.04658)?(3310-2310.7)+0.058?(3310-3036.3)+0.05661?(3310-2865.9)+0.00433?(3310-2731.9)+0.04654?(3310-2655.7)+0.04658?(3310-2505.8)]/(3310-701) =0.345

32. ¹ú²ú31-6-4ÐÍÆûÂÖ·¢µç»ú×éµÄ»ØÈÈϵͳ¼°¸÷µãìÊÖµ(kj/kg)ÈçÊéͼ5-46Ëùʾ£¬µÚ¶þ¼¶µÄ³éÆûѹÁ¦Îª

0.316Mpa,³ýÑõÆ÷¶¨Ñ¹ÔËÐС£ÒÑÖª³ýÑõÆ÷µÄѹÁ¦Îª0.118Mpaʱ£¬»ú×éµÄÈȺÄÂÊΪ12496kj/kW.h£¬¸÷¼¶³éÆû·Ý¶îΪ?1=0.082694, ?2=0.0042, ?3=0.089628¡£ÊÔÇóÈô³ýÑõÆ÷ѹÁ¦Ìá¸ßµ½0.196Mpaʱ»ú×éÈȺÄÂʵÄÏà¶Ô±ä»¯£¬´Ëʱ·¢µç»úµÄ¶Ë¹¦ÂÊΪ647kW£¬»úеËðʧΪ60kW£¬?g=0.962£¬h0=3303.4kj/kg¡£ ½â

2913.9 405 2411.6 3066.8 2784.2 178 635.6 435 666.95 ͼ5-46Ô­ÔòÐÔ»ØÈÈϵͳͼ ÆûÂÖ»úµÄÊä³ö¹¦ÂÊPm?»úеЧÂÊΪ ?m?Pel?g?647=672.56 0.962PmPm672.56=0.9181 ??PiPm?Pi672.56?60ÆûÂÖ·¢µç»ú×éµÄÆûºÄÂÊ d0?3600

[(1??1??2??3)(h0?hc)??1(h0?h1)??2(h0?h2)??3(h0?h3)]?mg 3600/{[(1-0.082694-0.0042-0.089628)(3303.4-2411.6)+0.082694?(3304.4-3066.8)+0.0042?(3304.4-2913.9)+0.089628?(3310-2784.2)]??m?g }

?

=5.0778[kg/kw.h] ÔòÈȺÄÂÊΪ

q0=d0(h0-hw2)=5.0778 (3303.4-635.6) =13546.66[kj/kw.h] »ú×éµÄÈȺÄÂʵÃÏà¶Ô±ä»¯Îª:

|q,0?q0||13546.66?12496| ?100%??100%

q012496 =8.41%

33£®ÒÑÖªÁ½Ì¨³öÁ¦¸÷Ϊ130t/hµÄ¹ø¯ºÏÓÃÒ»Ì×Á¬ÐøÅÅÎÛÀûÓÃϵͳ¡£Æû°üѹÁ¦Îª4.41Mpa£¬Á¬ÐøÅÅÎÛÂÊΪ1.2%£¬²¹³äË®ÂÊΪ2.5%,»¯Ñ§¾»Ë®ìÊΪ25.6kj/kg£¬ÈÝÆ÷½Óµ½0.118Mpa´óÆøʽ³ýÑõÆ÷£¬¹ÜµÀÖÐÕôÆûѹ½µÎª0.029Mpa£¬À©ÈÝÆ÷³ö¿ÚµÄÕôÆûʪ¶ÈΪ3%£¬À©ÈÝÆ÷ºÍÅÅÎÛË®ÀäÈ´Æ÷µÄЧÂʾùΪ0.98£¬ÀäÈ´Æ÷³ö¿ÚµÄ¶Ë²î

Ϊ10¡æ£¬²¹³äË®¾­ÅÅÎÛË®ÀäÈ´Æ÷Èë³ýÑõÆ÷£¬ÊÔ¼ÆË㣺 £¨1£© ÅÅÎÛÀ©ÈÝÆ÷»ØÊյŤÖÊÁ¿£»

£¨2£© »¯Ñ§¾»Ë®³öÅÅÎÛÀäÈ´Æ÷ʱµÄìÊÖµ£» £¨3£© »ØÊÕµÄÅÅÎÛÈÈÁ¿¡£

½â À©ÈÝÆ÷µÄѹÁ¦Îª pf=?p+pch=0.029+0.118=0.147Mpa

¶ÔÓ¦±¥ºÍË®µÄìÊΪ h,bl=464.34kj/kg

¸ù¾ÝpfºÍx=(1-3%)=0.97 ¿ÉµÃ: hf =2630kj/kg ¸ù¾ÝÆû°üѹÁ¦,²éË®ÕôÆû±íµÃh bl=1115.95kj/kg ¶ÔÀ©ÈÝÆ÷¿ÉÁгöÈçÏ·½³Ì À©ÈÝÆ÷ÎïÖÊƽºâDbl=Df+D,bl

À©ÈÝÆ÷ÈÈƽºâDbl h bl?f= Df hf+ D,blh,bl ?f?DfDbl?hbl?f?h,blhf?h,bl?1115.95?0.98?464.34=0.291

2630?464.34 ÔòÀ©ÈÝÆ÷»ØÊյŤÖÊÁ¿Df??fDbl=2?0.291?0.012?130=0.91(t/h)

À©ÈÝÆ÷Öб¥ºÍË®¶ÔÓ¦µÄζȴÓË®ÕôÆû±íÖпɲéµÃt,bl =110.72¡æ

Ôò»¯Ñ§¾»Ë®³öÅÅÎÛÆ÷ʱµÄζÈΪ 100.72¡æ,´Ëʱ¶ÔÓ¦µÃìÊֵΪ420kj/kg »ØÊÕµÄÅÅÎÛÈÈÁ¿Îª

Qma=Dma(h1-h2)? f=0.025?2?130?103? (420-25.6)?0.98 =2.5123?106(kj/h)

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