£¨ºþÄÏÌÒ»¨½ºËµçÓÐÏÞ¹«Ë¾ ºþÄÏ ÒæÑô 413000£© [Õª Òª]CPR1000ºËµçÕ¾¶ÑоÀäÈ´¼à²âϵͳCCMSͨ¹ý²âÁ¿·´Ó¦¶ÑѹÁ¦ÈÝÆ÷µ×²¿ºÍ¶¥²¿µÄ²îѹʵÏÖѹÁ¦ÈÝÆ÷ˮλL VSLµÄ²âÁ¿¡£ÎªÁË·ÖÎöÓàÈÈÅųöϵͳ RHRSµÄÔËÐÐ״̬ÒÔ¼°ÕôÆû·¢ÉúÆ÷¶Â¹Ü¶ÔLVSL²âÁ¿µÄÓ°Ï죬»ùÓÚCCMS L VSL²âÁ¿ÔÀí£¬ÍÆµ¼³öÎó²î¼ÆË㹫ʽ²¢½øÐÐÁ¿»¯¼ÆË㣬¼ÆËã½á¹û±íÃ÷ÕâÁ½ÖÖÏÖÏó¶ÔL VSL²âÁ¿ÒýÈëµÄÎó²î¾ù²»»á³¬¹ý5%£¬¿ÉÒÔºöÂÔ¡£ [¹Ø¼ü´Ê]¶ÑоÀäÈ´ ѹÁ¦ÈÝÆ÷ˮλ Îó²î ÕôÆû·¢ÉúÆ÷¶Â¹Ü ÖÐͼ·ÖÀàºÅ:TL363 ÎÄÏ×±êʶÂë:A ÎÄÕ±àºÅ:1009-914X(2014)17-0287-02 Analysis of the impact on vessel water level measurement due to RHRS operation and steam generator plugging Zhang Wei (CNNC Hunan Taohuajiang Nuclear Power Engineering Company,Ltd,Yiyang of Hunan Prov.413000,China) [Abstract]CCMS (Core Cooling and Monitoring System) of CPR1000 nuclear power plants measures the pressure difference between reactor vessel top and bottom to realize the reactor vessel water level (L VSL) measurement. Based on the measurement principal of CCMS L VSL, for the analysis of impact on vessel water level measurement due to RHRS operation and steam generator plugging, the article deduces the equation of error and calculates it. The result shows that the uncertainty induced by RHRS operation and steam generator plugging can be ignored. [Key words]Core cooling; Vessel water level; Error; Steam generator plugging 1 ÒýÑÔ ÈýÁ¨µºÊ¹ÊʹÈËÃÇÈÏʶµ½°²×°Ñ¹Á¦ÈÝÆ÷ˮλL VSL¼à²âÒDZíÉ豸µÄ±ØÒª ÐÔ£¬Í¨¹ýL VSL²âÁ¿¿ÉÒÔ¼à²â»òÔ¤ÆÚÒ»»ØÂ·ÀäÈ´¼ÁµÄ½Ï´óɥʧ£¬ÒÔ±ÜÃâ·¢Õ¹µ½ ¶ÑоÂ㶺ÍȼÁϰü¿Ç¹ýÈÈ¡£CPR1000ºËµçÕ¾¶ÑоÀäÈ´¼à²âϵͳCCMS£¨Core Cooling and Monitoring System£©Ö÷ҪΪ״̬µ¼Ïò·¨Ê¹ÊÔËÐгÌÐòSOP£¨State Oriented Procedure£©ÖÐÒ»»ØÂ·µÄÁ½¸ö״̬¹¦ÄÜ£ºÒ»»ØÂ·Ë®×°Á¿£¨ÓÉѹÁ¦ÈÝÆ÷Ë® λL VSLÌåÏÖ£©¡¢Ò»»ØÂ·Ñ¹Á¦ºÍζȣ¨ÓɶÑо³ö¿ÚÀäÈ´¼ÁµÄ¹ýÀä¶È?TsatÌåÏÖ£© Ìṩ¼à²âÊÖ¶Î[1]¡£CCMSͨ¹ý²âÁ¿Ñ¹Á¦ÈÝÆ÷ÉÏϲ¿µÄ²îѹ¼ÆËãL VSL£¬ÓàÈÈÅÅ ³öϵͳRHRSµÄÔËÐÐ״̬ºÍÕôÆû·¢ÉúÆ÷¶Â¹ÜÏÖÏó»á¶ÔÒ»»ØÂ·ÀäÈ´¼ÁµÄÁ÷¶¯²ú ÉúÓ°Ï죬½ø¶øÓ°Ï쵽ѹÁ¦ÈÝÆ÷ÄÚ²¿µÄ¶¯Ñ¹Ëðʧ£¬ÎªL VSL²âÁ¿ÒýÈëÎó²î£¬±¾ÎÄ ¶Ô¸ÃÎó²î¾¡Á¿Á¿»¯¼ÆË㣬²¢·ÖÎöËüÃǵÄÓ°Ïì¡£ 2 L VSL²âÁ¿ÔÀí¼°Îó²î·ÖÎö 2.1 L VSL²âÁ¿ÔÀí CPR1000ºËµçÕ¾CCMS L VSL²âÁ¿Ê¹Óòîѹ±äËÍÆ÷£¬Í¨¹ý¶ÑоÒDZíϵͳ RICÒDZí¹ÜÓëѹÁ¦ÈÝÆ÷µ×²¿ÏàÁ¬£¬Í¨¹ýѹÁ¦ÈÝÆ÷ÅÅÆø¹ÜÏßÓëѹÁ¦ÈÝÆ÷¶¥²¿Ïà Á¬£¬²âÁ¿Ñ¹Á¦ÈÝÆ÷ÄÚ²¿µÄ²îѹ?P¡£L VSLÊÇÒÔҺ̬ˮÔÚ·´Ó¦¶ÑѹÁ¦ÈÝÆ÷ÖÐËùÕ¼ µÄÌå»ý·Ý¶îµÄÐÎʽ¸ø³ö¡£²»ÂÛÖ÷±ÃµÄÔËÐÐ״̬ÈçºÎ£¬CCMS L VSL²âÁ¿¹«Ê½ ÈçÏÂ[2]£º 100 100 1 C v C l v l P h P £¨1£© ʽÖУº l Ϊ¶ÑоҺÏàµÄÃܶÈ(kg/m3)£¬ v ΪˮÕôÆûµÄÃܶÈ(kg/m3)£¬ C P Ϊͨ¹ý²îѹ±äËÍÆ÷²âµÃµÄµ±Ç°×´Ì¬Ï·´Ó¦¶ÑѹÁ¦ÈÝÆ÷ÄÚµÄʵ¼Ê²îѹֵ (MPa)£» C100 P ΪÔÚµ±Ç°²âÁ¿µ½µÄ·´Ó¦¶Ñζȡ¢Ñ¹Á¦ÒÔ¼°ÏàͬµÄÖ÷±ÃÔËÐÐ̨ÊýÏÂÇÒ·´Ó¦ ¶ÑѹÁ¦ÈÝÆ÷ÄÚ³äÂúҺ̬ˮʱ£¬ÀíÂÛÉϲâµÃµÄ²îѹֵ (MPa)¡£ C100 P ͨ¹ýÏÂʽ¼ÆË㣺 0 100 ' ( ) l C l D l D j cal P H H H g C £¨2£© ʽÖУº 'l ΪѹÁ¦ÈÝÆ÷¶¥²¿ÒºÏàÃÜ¶È (kg/m3)£¬ H ѹÁ¦ÈÝÆ÷¸ß¶È(m)£¬ HD ΪѹÁ¦ÈÝÆ÷¶¥²¿µÄ¸ß¶È(m)£¬ cal Ϊ±ê׼״̬ϵÄÒºÏàÃÜ¶È (kg/m3)£¬gÎªÖØÁ¦ ¼ÓËÙ¶È£¨m/s2£©£¬ 0j C Ϊ²»Í¬µÄÖ÷±ÃÔËÐÐ̨ÊýÏµĶ¯Ì¬Ñ¹Í·Ëðʧ(MPa)£¬j´ú±íÖ÷±Ã ÔËÐеĄ̈Êý£¬µ±ËùÓÐÖ÷±ÃÍ£ÔËʱ£¬ 0j C Ϊ0¡£ 2.2 Îó²î·ÖÎö·½·¨ LOCAºóµÄһЩÎïÀíÏÖÏó¶ÔÖ÷ÒªÓ°Ïìʽ£¨1£©ÖÐµÄ C P £¬ÎªÁ˼ò»¯·ÖÎö£¬Ê¹Óà (PC)´ú±í C P µÄ±ä»¯¡£Îó²î h¿ÉÒÔÓÉÏÂʽ¼ÆË㣺 100 100 ( ) 1 C v C l h P P £¨3£© 3 RHRSÔËÐÐ״̬¶ÔL VSL²âÁ¿µÄÓ°Ïì ¹«Ê½£¨2£©ÖÐµÄ 0j C ´ú±íÁ˲»Í¬Ö÷±ÃÔËÐÐÌõ¼þϵÄѹÁ¦ÈÝÆ÷Âúˮ״̬ʱµÄ¶¯ ѹËðʧ£¬L VSL²âÁ¿µÄ±ê¶¨ÊÔÑéÔÚѹÁ¦Î¶ȿɿصÄÌõ¼þϽøÐУ¬ÔÚÀäÍ£¶Ñ£¨60 ¡æ£¬2.5MPa£©¹¤¿öºÍÈÈÍ£¶Ñ¹¤¿ö£¨286¡æ£¬15.5MPa£©Ï£¬·Ö±ð²âµÃѹÁ¦ÈÝÆ÷ÄÚµÄ ¶¯Ñ¹Ëðʧ£¬ 0j C ÓÉËüÃÇµÄÆ½¾ùÖµ¾ö¶¨¡£ ÔÚÀäÍ£¶Ñ¹¤¿ö£¬Á½ÁÐRHRS¾ùͶÈëÔËÐУ¬ÔÚÈÈÍ£¶Ñ¹¤¿ö£¬Á½ÁÐRHRS¾ùÍ˳ö ÔËÐС£Òò´Ë£¬¿ÉÒÔ½üËÆÈÏΪ 0j C ¶ÔÓ¦ÓÚÒ»ÁÐRHRSÔËÐÐʱµÄ¶¯Ñ¹Ëðʧ¡£µ±Á½ÁÐ RHRSÔËÐÐʱ£¬Ñ¹Á¦ÈÝÆ÷ÄÚµÄÀäÈ´¼ÁÁ÷Á¿¸ßÓÚ 0j C Ëù¶ÔÓ¦µÄÁ÷Á¿£¬Ï൱ÓÚÒýÈëÁË Ò»²¿·Ö¸½¼ÓµÄ¶¯Ñ¹Ëðʧ£¬L VSL²âÁ¿±»¸ß¹À£¬Ïà·´£¬Á½ÁÐRHRS¾ùÍ˳öÔËÐÐʱ£¬ L VSL²âÁ¿±»µÍ¹À¡£ 0j C ¿ÉÓÉÏÂʽ½üËÆ¼ÆË㣺 0 2 2 1 (1 ) 1 ( ) 2 j dyn cal TOT RHRS C P RHRS K W W A £¨4£© ÆäÖУ¬ (1 ) dyn P RHRS ´ú±íÁËÒ»ÁÐRHRSÔËÐÐʱµÄѹÁ¦ÈÝÆ÷ÄڵĶ¯Ñ¹Ëðʧ £¨MPa£©£¬ K ΪѹÁ¦ÈÝÆ÷ÄÚµÄ×èÁ¦ÏµÊý£¬ A ΪѹÁ¦ÈÝÆ÷ÄÚµÄÁ÷¶¯½ØÃ棨m2£©£¬ TOT W Ϊ»·Â·×ܵÄÀäÈ´¼ÁÌå»ýÁ÷Á¿£¨m3/s£©£¬ W1RHRSΪһÁÐRHRSµÄÌå»ýÁ÷Á¿£¨m3/s£©¡£ ¶ÔCPR1 0 00ºËµçÕ¾£¬ W1RHRS =0. 2 5 3m3/s£¬¶ø TOT W = 6 . 3 4 m 3/ s £¬ 1RHRS TOT W W £¬ÔòÒ»ÁÐRHRSÔËÐÐʱµÄ¶¯Ñ¹Ëðʧ¿É¼ò»¯Îª£º 2 1 2 (1 ) 1 (1 2 ) 2 RHRS dyn TOT cal TOT P RHRS K W W A W £¨5£© ͬÑùµØ£¬Á½ÁÐRHRSÔËÐÐÌõ¼þÏµĶ¯Ñ¹Ëðʧ (2 ) dyn P RHRS ºÍÁ½ÁÐRHRS Í˳öÔËÐÐʱµÄ¶¯Ñ¹Ëðʧ (0 ) dyn P RHRS ¿É·Ö±ðÓÉÏÂʽ½üËÆ¼ÆË㣺 2 1 2 (2 ) 1 (1 4 ) 2 RHRS dyn TOT cal TOT P RHRS K W W A W £¨6£© 2 2 (0 ) 1 dyn 2 TOT cal P RHRS K W A £¨7£© ÓÉ£¨5£©¡¢£¨6£©ºÍ£¨7£©¿ÉÒԵõ½£º ( ) (2 ) (1 ) (0 ) (1 ) 2 1 0 RHRS C dyn dyn dyn dyn j TOT P P RHRS P RHRS P RHRS P RHRS W C W £¨8£© ½«Ê½£¨8£©´øÈëʽ£¨3£©£¬¿ÉµÃµ½ hµÄ¼ÆË㹫ʽ£º £¨ 9£© ÒÀ¾Ý¹«Ê½£¨9£©¼ÆËãÈÈÍ£¶Ñ¹¤¿ö²»Í¬Ö÷±ÃÔËÐÐÌõ¼þÏ嵀 h£¬½á¹ûÈç±í1Ëùʾ£º ±í1 RHRSÔËÐжÔL VSL²âÁ¿ÒýÈëµÄÎó²î ÔÚ»ú×éʵ¼ÊÔËÐÐʱ£¬¿¼ÂÇRHRSÆô¶¯Ö®ºóÒ»»ØÂ·ÀäÈ´¼Á×èÁ¦µÄÇá΢±ä»¯£¬ RHRSÔËÐÐʱµÄѹÁ¦ÈÝÆ÷ÄÚµÄÁ÷Á¿ÉÔµÍÓÚRHRS²»ÔËÐÐʱµÄѹÁ¦ÈÝÆ÷ÄÚÁ÷Á¿ ºÍRHRSÁ÷Á¿µÄºÍ¡£´ÓÕâ¸ö½Ç¶È¿´£¬ÕâЩ¼ÆËã½á¹ûÊDZ£Êصġ£´Ó»ú×éÔËÐÐµÄ½Ç¶È ¿¼ÂÇ£¬RHRSÔËÐжÔL VSL²âÁ¿ÒýÈëµÄ²»³¬¹ý3%µÄÎó²î¿ÉÒÔºöÂÔ¡£ 4 ÕôÆû·¢ÉúÆ÷¶Â¹Ü¶ÔL VSL²âÁ¿µÄÓ°Ïì ÕôÆû·¢ÉúÆ÷¶Â¹Ü»áµ¼ÖÂÕôÆû·¢ÉúÆ÷ÄÚÒ»»ØÂ·Á÷ÌåÁ÷¶¯½ØÃæÃæ»ý¼õС£¬µ¼Ö ÕôÆû·¢ÉúÆ÷ÄÚÒ»»ØÂ·Ñ¹Á¦ËðʧÔö¼Ó¡£´ËÍ⣬ÓÉÓÚÕôÆû·¢ÉúÆ÷»»ÈÈÃæ»ý¼õС£¬ÔÚÒ» ¶þ»ØÂ·µÄ¹¦Âʽ»»»ºÍƽ¾ùζȲ»±äµÄÇé¿öÏ£¬»áµ¼Ö¶ÑоÈë¿ÚºÍ³ö¿ÚÀäÈ´¼ÁΠ²îµÄÔö¼Ó£¬¼Ì¶øµ¼ÖÂÀä¶ËζȽµµÍ¡£ÕâÁ½¸öЧӦ¶¼»áʹһ»ØÂ·Ñ¹Á¦ËðʧÔö¼Ó£¬¼Ì ¶øµ¼ÖÂÒ»»ØÂ·Á÷Á¿µÄ½µµÍ¡£ ¶Â¹Üºó£¬Èô²»¶Ô 0j C ÖØÐÂУÑ飬»áµ¼Ö¶ÔL VSLµÄ¸ß¹À¡£µ±3̨Ö÷±ÃÔËÐÐʱ£¬ ¸ÃÓ°Ïì×îΪÃ÷ÏÔ¡£Ñ¹Á¦ÈÝÆ÷ÄÚµÄÀäÈ´¼ÁÁ÷Á¿¿ÉÊÓΪÕôÆû·¢ÉúÆ÷¶Â¹ÜÂʵĺ¯Êý£¬ ¿¼Âǵ½¶¯Ñ¹ËðʧÓëÁ÷Á¿µÄƽ·½³ÉÕý±È¹ØÏµ£¬²Î¿¼¹«Ê½£¨8£©£¬¿ÉÒԵõ½£º 0 3 100 2 100 1 v C l h W C W P £¨ 10£© ÆäÖУ¬ W ´ú±íÕôÆû·¢ÉúÆ÷¶Â¹ÜǰµÄÒ»»ØÂ·ÀäÈ´¼ÁÁ÷Á¿£¨m3/s£©£¬ W´ú±íÕô Æû·¢ÉúÆ÷¶Â¹ÜËùµ¼ÖµÄÒ»»ØÂ·ÀäÈ´¼ÁÁ÷Á¿µÄ±ä»¯£¨m3/s£©¡£ ¼ÆËã3̨Ö÷±ÃÔËÐÐÌõ¼þÏ£¬3̨SGÿ̨SG¶Â¹ÜÂÊΪ10%ºÍÖ»ÓÐ1̨ÕôÆû·¢Éú Æ÷¶Â¹Ü£¬¶Â¹ÜÂÊΪ10%ʱµÄL VSL²âÁ¿Îó²î£¬½á¹ûÈç±í2Ëùʾ£º ±í2 ÕôÆû·¢ÉúÆ÷¶Â¹Ü¶ÔL VSL²âÁ¿ÒýÈëµÄÎó²î ÕâÀï¼ÙÉè10%µÄ¶Â¹ÜÂÊÊDZ£Êصģ¬¶Ô»ú×éʵ¼ÊÔËÐÐÇéÐΣ¬¹ý¸ßµÄ¶Â¹ÜÂÊÐè ÒªÈËΪ½«»ú×éÍ£ÔË£¬ÔÚÍ£Ô˺óµÄÆô¶¯¹ý³ÌÖÐ¶Ô 0j C ÖØÐ½øÐÐУÑ飬´Ó¶ø¿ÉÒÔÏû³ý ÕôÆû·¢ÉúÆ÷¶Â¹ÜµÄÓ°Ïì¡£ 5 ½áÂÛ ±¾ÎĶÔRHRSÔËÐкÍÕôÆû·¢ÉúÆ÷¶Â¹Ü¶ÔL VSL²âÁ¿ÒýÈëµÄÎó²î½øÐÐÁËÁ¿ »¯¼ÆË㣬Ö÷ÒªÓÐÈçϽáÂÛ£º£¨1£©RHRSµÄÔËÐлòÍ£ÔË¿ÉÄܵ¼Ö¶ÔL VSL²âÁ¿µÄ ¸ß¹À»òµÍ¹À£¬ÆäÒýÈëµÄÎó²î×î´ó²»³¬¹ý3%£¬¿ÉÒÔºöÂÔ£»£¨2£©¶ÔÕôÆû·¢ÉúÆ÷¶Â¹Ü£¬ ÔÚ3̨ÕôÆû·¢ÉúÆ÷¶Â¹Ü10%µÄÇéÐÎ϶ÔL VSL²âÁ¿×î´ó¿ÉÒýÈë4.2%µÄÎó²î£¬¸Ã Îó²î¿ÉÒÔͨ¹ý»ú×éÖØÐÂÆô¶¯Ê±¶Ô¶¯Ñ¹ËðʧµÄÖØÐÂУÑé¶øÏû³ý¡£ ²Î¿¼ÎÄÏ× [1] ÕŽõÕã.״̬µ¼Ïò·¨Ê¹ʴ¦Àí³ÌÐò.´óÑÇÍåºËµç,2007,46(4):45-48. 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