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ÊÔÓÃÐÂÆû²ÎÊýp0=3.43Mpa¡¢t0=435¡æ £¬ÅÅÆûѹÁ¦·Ö±ðΪ0.0083MPaºÍ0.98MPa£¬t0²»±ä£¬½«p0ÓÉ3.43Mpa Ìá¸ßµ½8.83Mpa£¬ËµÃ÷p0µÄÌá¸ß¶ÔÄýÆûʽÆûÂÖ»úºÍ±³Ñ¹»úµÄÓ°ÏìÄǸö´ó£¨ÒÔÀíÏëÑ»·À´ËµÃ÷£©¡£ ½â: ¸ù¾Ý»ú×é²ÎÊý²éìÊìØͼºÍË®ÕôÆø±íµÃ ¶ÔÄýÆûʽ»úÆûÂÖ»ú£º h0=3310kj/kg h0'=3220 kj/kg hc=2185 kj/kg hc'=2015 kj/kg hfw=176.8kj/kg ÔÚÔÉè¼Æ²ÎÊýÏÂÀíÏëÑ»·µÄЧÂÊΪ ?t?h0?hc3310?2185 =0.359 ?h0?hfw3310?176.8, ¸Ä±äÐÂÆûѹÁ¦ºóÀíÏëÑ»·µÃЧÂÊΪ h0?h,c3220?2015? ?t?,=0.396 h0?hfw3220?176.8, ÔòЧÂÊÏà¶Ô±ä»¯Îª |?,t??t|?t?100%?|0.396?0.359|?100% =10.3% 0.359 ¶Ô±³Ñ¹Ê½»úÆûÂÖ»ú£ºh0=3310kj/kg h0'=3220 kj/kg hc=2975 kj/kg hc'=2710 kj/kg hfw=758.6kj/kg Éè¼Æ²ÎÊýÏÂÀíÏëÑ»·Ð§ÂÊΪ ?t?h0?hc3310?2975=0.131 ?h0?hfw3310?758.6, ¸Ä±äÐÂÆûѹÁ¦ºóÀíÏëÑ»·µÄЧÂÊΪ h0?h,c3220?2710? ?t?, =0.207 h0?hfw3220?758.6, ÔòЧÂÊÏà¶Ô±ä»¯ÂÊΪ |?,t??t|?t?100%?|0.207?0.131|?100% =58.2% 0.131 ÓÉÉÏʽ¼ÆËã¿É¼û,³õѹµÄÌá¸ß¶Ô±³Ñ¹Ê½ÆûÂÖ»úÓ°Ïì½Ï´ó¡£ 13. 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ÓÃÉÏÌâÊý¾Ý£¬²¢ÒÑÖª£º P=200MW£¬³§ÓõçÂÊ7%¡£ÊÔ¼ÆËãÏÂÁÐÖ¸±ê£º £¨1£© ÆûÂÖ·¢µç»ú×飺ÆûºÄÁ¿ºÍÆûºÄÂÊ£¬ÈȺÄÁ¿ºÍÈȺÄÂÊ£» £¨2£© ¹ø¯É豸£ºÈȺÄÁ¿£¬±ê׼úºÄÂʺÍÕôÆûÉú²úÂÊ£» £¨3£© È«³§£ºÈȺÄÁ¿¡¢ÈȺÄÂÊ¡¢ÈÈЧÂÊ¡¢±ê×¼·¢µçúºÄÂʺ͹©µçúºÄÂÊ¡£ ½â ¸ù¾Ý¹ø¯ºÍ»ú²ÎÊý²éìÊìØͼºÍË®ÕôÆø±íµÃ ¹ø¯³ö¿Ú: hb=3450 kj/kg ¸ßѹ¸×½ø¿Ú:h0=3455 kj/kg h¡¯t0=2955 kj/kg h¡¯rh=3023.6 kj/kgv ÔÙÈÈÆ÷³ö¿Ú:h¡¯¡¯rh=3550 kj/kg ÖÐѹ¸×½ø¿Ú:h¡¯¡¯¡¯rh=3545 kj/kg h¡¯trh=2955 kj/kg h,tc=2300 kj/kg (1) ÆûÂÖ»úÖ÷ÒªÈȾ¼ÃÖ¸±êÈçÏ ÆûºÄÁ¿ ?D0?[(h0?h,t0)?r??(h,,rh3600Pe ,,,,,,?htrh)?ri?(htrh?htc)?ri]?m?g3600?20000 [(3445?2995)0.86?(3545?2955)0.9?(2955?2300)0.84]0.98?0.985 =496.394(t/h) ÆûºÄÂÊ do=D0/Pe=496394/200000=2.482 [kg/(kw.h)] ÈȺÄÂÊQ0=D0[h0-h,c+(h,,rh-h,rh)] =496394(3445-136.2+3550-3023.6) =1903.77(Gj/h) Q01903.77?106 ÈȺÄÂÊq0?=9518.85[kj/kw.h] ?Pe200000(2) ¹ø¯É豸 ÈȺÄÂÊQb?Q0?b?1903.77=2092.05(Gj/h) 0.91Qb2092.05?106±ê׼úºÄÂÊB?=71.47(t/h) ?3Ql29270?10D496394ÕôÆûÉú²úÂÊG?0?=6.945(kg/kgú) B71470(3) È«³§¹ÜµÀЧÂÊ h0?h,c??qrh3445?136.2?3545?3023.6=0.997 ?p??,,,,hb?hc?hrh?hrh3450?136.2?3550?3023.6ÈȺÄÁ¿ Qcp?BQl?ÈȺÄÂÊqcp?ÈÈЧÂÊ?cp?Q0?b?pq0??2092.05=2094.78(Gj/h) 0.9979518.85=10481.23[kj/kw.h] 0.91?0.998?b?p3600Pel36003600=0.343 ??Qcpqcp10481.230.123±ê×¼·¢µçúºÄÂÊ bs?¹©µç±ê׼úºÄÂÊbs?cp?0.123=358[g±ê׼ú/kw.h] 0.343n?bs358=385[g±ê׼ú/kw.h] ?1??ab1?0.0717 ¹ú²úN125-135/550/550ÐÍÆûÂÖ»ú£¬p0=13.24Mpa¡¢t0=550¡æ¡¢prh=2.5Mpa¡¢trh=550¡æ¡¢pc=0.0049Mpa¡¢ ?ri=0.8¡¢?mg=0.98x0.985£¬¼Ù¶¨ÎÞ»ØÈÈ£¬ÊÔ¼ÆËã²ÉÓÃÔÙÈȺóÆûÂÖ·¢µç»ú×éµÄÆûºÄÂʺÍÈȺÄÂʵÄÏà¶Ô ±ä»¯¡£ ½â£º ¸ù¾Ý»ú×é²ÎÊý²éìÊìØͼ¼°Ë®ÕôÆøͼ±íµÃ h0=3470kj/kg ht0=2975 kj/kg hca=2010 kj/kg hrh=3375 kj/kg hrhc =2275kj/kg hfw=h,c=176.8kj/kg (1) µ±»ú×é²»²ÉÓÃÔÙÈÈʱ 3600Pel (h0?hca)?ri?mg3600?125000 = (3470?2010)?0.80?0.98?0.985ÆûºÄÁ¿ D0? =399124(kg/h) D0399124?=3.193[kg/(wh.h)] Pel125000ÈȺÄÂÊq0=d0(h0-hc,)=3.193?(3470-136.2)=10644.785(kj/kg) ÆûºÄÂÊd0?(2) µ±»ú×é²ÉÓÃÔÙÈÈʱ ÆûºÄÁ¿ D0?3600Pel [(h0?ht0)?(hrh?hrhc)?ri]?m?g3600?125000 (3470?2975?3575?2275)?0.80?0.98?0.985 = =344635(kg/h) ÆûºÄÂÊd0?D0324635=2.597[ kg/kw.h] ?Pel125000ÈȺÄÂÊq0= d0[h0-hc, +(h0-ht0) ?ri] =2.597?(3575-136.2+(3470-2975) ?0.87 =9958.97(kj/kg) ¹ÊÆûºÄÂʵÄÏà¶Ô±ä»¯Îª |d,0?d0||2.597?3.193| ?100%??100% =18.7% qd3.193 ÔòÈȺÄÏà¶Ô±ä»¯ÖµÎª |q,0?q0||9958.97?10644.785| ?100%??100% q010644.785 =6.44% 18. ¾ßÓÐÒ»¼¶»ØÈȼÓÈȵÄÆûÂÖ·¢µç»ú×飬p0= 3.43Mpa¡¢t0=435¡æ¡¢pc=0.0049Mpa¡¢hc=2394kj/kg¡¢ p1=0.96Mpa¡¢h1=2794kj/kg£¬²ÉÓûìºÏ¼ÓÈÈÆ÷¡£Èô?mg=0.95£¬ÊÔÇóÆûÂÖ·¢µç»ú×éµÄÆûºÄÂʺÍÈȺÄÂÊ£¬ÓëÎÞ»ØÈÈÏà±È£¬¾ø¶ÔЧÂÊÌá¸ßÁ˶àÉÙ£¨Ïà¶ÔÖµ£©£¿ÈôÆûÂÖ·¢µç»úµÄµç¹¦ÂÊ P=6000KW £¬ÊÔÇóÆäÈȺÄÁ¿ºÍ½øÈë¼ÓÈÈÆ÷µÄ³éÆûÁ¿¡£ ½â £º ¸ù¾Ý»ú×é²ÎÊý,²éË®ÕôÆø±íµÃ h1,=754.6kj/kg hc,=136.2kj/kg (1) µ±Ã»ÓлØÈȳéÆûʱ »ú×éµÄ¾ø¶ÔÄÚЧÂÊΪ ?el??i?mg?h0?hch0?hc?mg?,3310?2394?0.95=0.287 3310?136.2(2) ²ÉÓûØÈȼÓÈÈʱ ÓÉÈÈƽºâ·½³ÌµÃ ?1(h1?h1,)?(1??1)(h1,?hc,) ?1(2794?754.6)?(1??1)(754.6?16.2) ?1?0.274 Ôò»ú×éÆûºÄÂÊΪ d0?D03600 ?Pel[?1(h0?h1)?(1??1)(h0?hc)]?mg3600 [0.274?(3310?2794)?(1?0.274)?(3310?2394)]?.095 = =4.464[kj/(kw.h)] ÈȺÄÂÊ q0=d0(h0-hfw)=4.464?(3310-754.6)=11408.04[kj/kw.h] Ôò?,el?36003600??0.316 q011408.04¹Ê¾ø¶ÔµçЧÂʵı仯Ϊ |?,el??el|?el?100%?|0.316?0.287|?100% =10.1% 0.287µ±µç¹¦ÂÊP=6000kwʱ D0=Pd0=4.464?6000?10-3=26.784(t/h) Ôò½øÈë¼ÓÈÈÆ÷µÄ³éÆûÁ¿Îª: D??D0??1?0.274?26.784=7.339(t/h) 20. ¹ú²ú31-25-2ÐÍÆûÂÖ»ú£¬p0= 3.43Mpa¡¢t0=435¡æ¡¢pc=0.0049Mpa¡¢tfw=164¡æ¡¢ ²ÉÓÃËļ¶»ìºÏ¼ÓÈÈÆ÷¸øË®»ØÈÈ¡£Èô?ri=0.80¡£ÊÔ²ÉÓ㺠£¨1£© ƽ¾ù·ÖÅä·¨£» £¨2£© ìʽµ·ÖÅä·¨¡£ È·¶¨¸÷¼ÓÈÈÆ÷µÄìÊÉý¼°¸÷¼¶³éÆûѹÁ¦¡£ ½â£ºÆ½¾ù·ÖÅä·¨ ¸ù¾Ý»ú×é²ÎÊýp0 ¡¢ to\\ ¡¢pcÓÉË®ÕôÆøͼ±íµÃÓйØÊý¾Ý·Ö±ðΪ £¬ h0=1044.2kj/kg h0=3305.1kj/kg hc=2361.3kj/kg h,c=137.77kj/kg h,0?h,c1044.2?137.77? 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,?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) 34. ÊÔÇóÈȵ糧»ù±¾ºÍ¸ß·åÈÈÍø¼ÓÈÈÆ÷µÄÉè¼ÆÈÝÁ¿¡£ÒÑÖª£º×î´óÈȸººÉQm=25.12?106kj/h(Ïà¶ÔÊÒÍâÆøÎÂ-30¡æ)£¬ÈÈÍøÉè¼Æ¹©Ë®Î¶È130¡æ£¬Éè¼Æ»ØˮζÈ70¡æ£¬²ÉůÊÒÄÚÉè¼ÆζÈ18¡æ£¬ÈÈÍø²ÉÓÃÖÐÑëÖʵ÷½Ú¡£ÆûÂÖ»ú¹©Å¯³éÆûѹÁ¦Îª0.118Mpa£¬¿É°ÑÈÈÍøË®¼ÓÈȵ½95¡æ£¬Çóµ±ÊÒÍâÆøÎÂΪ-30¡æʱ»ù±¾ÈÈÍø¼ÓÈÈÆ÷µÄÈȸººÉ¡£ ½â ÖÐÑëÖʵ÷½ÚÖ»µ÷½Ú¹©Ë®Î¶ȣ¬Ë®ÈÈÍøÁ÷Á¿²»±ä£¬ ¹Ê¿É¸ù¾Ý×î´óÈȸººÉ¿ÉÇóµÃË®ÈÈÍøÁ÷Á¿¡£ Qm=GCp(tsu-trt) Qm25.12?106 G?=100159.48(kg/h) ?Cp(tsu?trt)4.18(130?70) Ôòµ±ÊÒÍâÆøÎÂ-30¡æʱ£¬»ù±¾ÈÈÍø¼ÓÈÈÆ÷µÄÈȸººÉΪ Q=GCp(tsu-trt) =100159.48?4.18? (95 - 70) =10.47?106(kj/h) 35. ijÈȵ糧£¬»ù±¾ÈÈÍø¼ÓÈÈÆ÷ÓÉ0.118¡ª0.245MpaµÄ³éÆû¼ÓÈÈ£¬×î¸ß¼ÓÈȵ½118¡æ£»¸ß·åÈÈÍø¼ÓÈÈÆ÷ÈÈÔ´ÓɼõμõѹÆ÷¹©¸ø£¬ÒÑÖªÊÒÍâÆøÎÂ-30¡æʱ×î´óÈȸººÉQm=25.12?106kj/hʱ£¬ÈÈÍøÉè¼Æ»ØˮζÈΪ70¡æ¡£ÊÔÇóÉè¼Æ¹©Ë®Î¶ȷֱðΪ130¡æºÍ150¡æʱ¸ß·åÈÈÍø¼ÓÈÈÆ÷µÄÉè¼ÆÈÝÁ¿£¬²¢·ÖÎö¶Ô¹©ÈÈ·¢µçÁ¿µÄÓ°Ïì¡£ ½â £¨1£©µ±Éè¼Æ¹©Ë®Î¶ÈΪ130¡æʱ ¸ù¾Ý×î´óÈȸººÉÇóµÃË®ÈÈÍøÁ÷Á¿ Qm=GCp(tsu-trt) Qm25.12?106 G? ?Cp(tsu?trt)4.18(130?70) =100159.48(kg/h) »ù±¾ÈÈÍø¼ÓÈÈÆ÷µÄÈȸººÉΪ Qjb=GCp(tsu-trt =100159.48?4.18? (118 - 70) =20.096?106(kj/h) ËùÒԸ߷åÈȸººÉµÄÉè¼ÆÈÝÁ¿Îª Qgf=Qm-Qjb 6 =25.12-20.096=5.024?10(kj/h) (2) µ±Éè¼Æ¹©Ë®Î¶ÈΪ150¡æʱ ¸ù¾Ý×î´óÈȸººÉÇóµÃË®ÈÈÍøÁ÷Á¿ Qm=GCp(tsu-trt) Qm25.12?106 G? ?Cp(tsu?trt)4.18(150?70) =75119.62(kg/h) »ù±¾ÈÈÍø¼ÓÈÈÆ÷µÄÈȸººÉΪ Qjb=GCp(tsu-trt) =75119.62?4.18? 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