Kugwiritsa ntchito valavu yanzeru poyang'anira makina a petrochemical plant Analysis of intelligent valve positioner and fault analysis

Kugwiritsa ntchito kwanzeru valavu poyang'anira makina a petrochemical plant Kusanthula kwa valavu yanzeru komanso kusanthula zolakwika mu makina owongolera a petrochemical plant, kusankha valavu yowongolera ndikofunikira kwambiri pakulondola, kugwiritsa ntchito kwake kumakhudza mtundu wazinthu, ndipo zikugwirizana ndi chitetezo cha zomera. Dushanzi VINYL chomera chida chilichonse chimagwiritsa ntchito ma valve owongolera kuphatikiza opanga osiyanasiyana amitundu yosiyanasiyana. Koma ambiri mwa owongolera omwe adayikidwa ndi mtundu wamba wa ma valve positioner. FIELDVUE intelligent valve positioner yopangidwa ndi FISHER-ROSEMOUNT Company tsopano imagwiritsidwa ntchito mufakitale ya Dushanzi. Pambuyo pa chaka chimodzi chogwira ntchito, kagwiridwe ka ntchito, kagwiritsidwe ntchito, kagwiridwe ka ntchito ndi chiŵerengero cha mtengo wa FIELDVUE woyendetsa valavu wanzeru amafananizidwa ndi wamba wamba valavu Vavu yoyang'anira yokhala ndi malo wamba imakhala ndi valavu yowongolera yokhala ndi malo anzeru Cholakwika chachikulu. ndi zosakwana 20% ya ulendo ndi zosakwana 0.5% ya ulendo Vavu bata ndi khola ndi khola kwambiri Buku kusintha pa malo Kusintha pa malo, mu nduna kapena kulankhulana ndi DCS kudzera calibrator Signal gwero 4 ~ 20mA kapena pneumatic chizindikiro chizindikiro cha analogi kapena chizindikiro cha digito Magwiridwe/mtengo wapamwamba kuposa wotsika 1 FIELDVUE wanzeru valavu poika malo mfundo ndi makhalidwe 1.1 Mfundo za Intelligent Locator FIELDVUE mndandanda wowongolera ma valve a digito ali ndi modular base yomwe ingasinthidwe mosavuta m'munda popanda kuchotsa mawaya akumunda kapena njira. Magawo a module akuphatikizapo ma submodules: Otembenuza I / P; PWB (gulu losindikizidwa ladera) msonkhano; Pneumatic repeater; Pepala la malangizo. Magawo a module amatha kulumikizidwanso ndikusintha ma submodule. FIELDVUE mndandanda wamagetsi amagetsi amagetsi amalandira zizindikiro zolowera ndi mphamvu zamagetsi kupyolera mu mawaya opotoka mu bokosi losatha nthawi yomweyo ku submodule ya msonkhano wa PWB, kumene imamangiriridwa ndi magawo ambiri monga ma node coordinates, malire ndi zikhalidwe zina mumagulu ambiri. -kukhazikitsa mzere. Gawo la PWB submodule kenako limatumiza ma sign ku I/P converter submodule. Wotembenuza wa I / P amasintha chizindikiro cholowetsa kukhala chizindikiro cha barometric. Chizindikiro champhamvu cha mpweya chimatumizidwa ku chobwerezabwereza pneumatic, kukulitsidwa ndikutumizidwa kwa actuator ngati chizindikiro chotuluka. Chizindikiro chotulutsa chimathanso kumveka ndi chinthu chovuta kukakamiza chomwe chili pa gawo la PWB submodule. Zidziwitso zowunikira ma valve actuators. MALO A STEM WA VALVI NDI ACTUATOR AMAGWIRITSA NTCHITO MONGA ZINTHU ZOYANG'ANIRA KU SUBMODULE YA PWB NDIPO AMAGWIRITSA NTCHITO MONGA ZIZINDIKIRO ZONSE KWA DIGITAL VALVE CONTROLLER, ZOMWE zikhalanso ndi GAUGE YOSONYEZA MOYO NDIPON 1.2 Makhalidwe anzeru a valavu yanzeru 1.2.1 Kuwongolera chidziwitso cha nthawi yeniyeni, chitetezo chokwanira komanso kuchepetsa ndalama 1) Kuwongolera kuwongolera: kulumikizana kwa digito kwanjira ziwiri kumabweretsa chidziwitso cha zomwe zikuchitika pa valve kwa inu, mutha kudalira valavu. zidziwitso za ntchito kuti zikhale ndi maziko a chigamulo chowongolera njira, kuonetsetsa kuwongolera munthawi yake. 2) Limbikitsani chitetezo: Mutha kusankha zidziwitso kuchokera pabokosi lolumikizirana, bolodi kapena mchipinda chowongolera malo otetezedwa pogwiritsa ntchito opareshoni, PC kapena makina ogwirira ntchito, kuchepetsa mwayi wokumana ndi malo owopsa, ndipo simukuyenera kupita ku webusayiti. 3) Kuteteza chilengedwe: chowunikira chotsitsa cha valve kapena chosinthira malire chikhoza kulumikizidwa ndi cholumikizira chothandizira cha wowongolera wanzeru wamagetsi wamagetsi, kuti mupewe waya wowonjezera. Mitayo idzawopsa ngati malire apyola. 4) Kusungirako kwa hardware: Pamene FIELDVUE mndandanda wa digito wa valve positioner umagwiritsidwa ntchito m'makina ophatikizika, FIELDVUE wolamulira wa valve wa digito amalowa m'malo mwa olamulira kuti apulumutse pa hardware ndi ndalama zoyikira. FIELDVUE owongolera ma valve a digito amapulumutsa 50% pamalonda a wiring, terminal ndi I/O zofunika. Panthawi imodzimodziyo FIELDVUE mita imagwiritsa ntchito magetsi awiri a mzere wamagetsi, safuna waya wosiyana komanso wokwera mtengo. Amalowetsa zida za analoji zomwe zilipo zomwe zimayikidwa ku ma valve ndikusunga mtengo wokwera wa kuyala mphamvu ndi mizere yazizindikiro mosiyana. 1.2.2 Mapangidwe odalirika ndi chidziwitso cha HART 1) Mapangidwe okhazikika: Chomangira chosindikizidwa bwino chimalepheretsa kugwedezeka, kutentha ndi malo owononga kuti asakhudze, ndipo bokosi lophatikizana ndi nyengo yolimbana ndi nyengo limalekanitsa mawaya akumunda ndi zida zonse. 2) Kufulumizitsa njira zokonzekera zoyambira: Kuthekera kwa njira ziwiri zoyankhulirana za wowongolera ma valve a digito kumakupatsani mwayi wozindikira chida chilichonse, kuyang'ana mawonekedwe ake, kuwunikanso ndikuyerekeza zolemba zosungidwa zakale ndi zina zambiri, kuti mukwaniritse cholinga cha kuyambitsa lupu mwachangu momwe mungathere. 3) Kusankha kosavuta kwachidziwitso: FIELDVUE digito valve locator ndi transmitter imagwiritsa ntchito protocol yolumikizirana ya HART kuti isankhe mosavuta zambiri zakumunda. Onani ZOONA ZOONA MAZAKE WA NJIRA YOLAMULIRA - VALVU YOLAMULIRA IYEKHA - NDI THANDIZO LA NTCHITO YOLANKHULANA NDI M'NJA PA VALVI KAPENA PA FIELD JUNCTION BOX, NDI THANDIZO LA KOMPYUTA KAPENA CHINJIRA CHA OPERATOR MU ROOM YA DCS. Kukhazikitsidwa kwa protocol ya HART kumatanthauzanso kuti mamita a FIELDVUE akhoza kuphatikizidwa mu dongosolo lophatikizana kapena kugwiritsidwa ntchito ngati chipangizo chodzilamulira chokha. Kusinthasintha kumeneku m'zinthu zambiri kumapangitsa kuti kamangidwe kachitidwe kachitidwe kakhale kosavuta komanso kosavuta ngakhale panopa kapena m'tsogolomu. 1.2.3 Kudzidziwitsa nokha ndi luso lolamulira 1) Kuyankhulana ndi Fieldbus Olamulira onse a DVC5000f digital valve akuphatikizapo mphamvu zoyankhulirana za fieldbus, kuphatikizapo A0 block block ndi zotsatirazi: A) Ma valve ofunikira amagwiritsira ntchito magawo otsatila; B) Zida zaumoyo magawo magawo; C) Mayeso okonzedweratu amtundu wa valve performance step kukonza. VAVU YOPHUNZITSIRA AMAGWIRITSA NTCHITO ZOCHITA ZOYANG'ANIRA NTCHITO YONSE YOYENERA KUYENDA (kuchuluka kwapaulendo) ndi kuchuluka kwa STEM kutembenuka (kuzungulira). Miyezo yaumoyo wamamita imachenjeza ngati pali vuto lililonse ndi kukumbukira kwa mita, purosesa, kapena chowunikira. Vuto likachitika, dziwani momwe mita idzachitira ndi vutolo. Ngati, ngati chojambulira cha kuthamanga chikulephera, mita iyenera kuzimitsidwa? Mukhozanso KUSANKHA CHIMENE chigawocho chikulephereka chomwe chidzapangitse kuti mita itseke (ngati vutolo ndi lalikulu kwambiri moti mita itseke). Malangizo awa a parameter amanenedwa ngati ma alarm. Kuwunika ma alarm kumatha kuwonetsa nthawi yomweyo chida cholakwika, valavu, kapena njira. 2) Kuwongolera kokhazikika ndi kuzindikira Owongolera ma valve a digito a DVC5000f amaphatikiza zowongolera ndi zowunikira. Kuwongolera kokhazikika kumaphatikizapo A0 yokhala ndi P> dynamic error band, siginecha yoyendetsa ndi chizindikiro chotuluka ndi mayeso osunthika. KUYESA kumeneku KUKUCHITIKA KUTI ASINTHE MALO OMWE AMAKHALA WOPHUNZITSIRA BLOCK (SERVO MECHANISM) PA LIPIYO LOLAMULIDWA NDI KUPANGA NTCHITO YA VALVU KUTI KUDZIWE NTCHITO YAKUCHITA KWA VAVU. Mwachitsanzo, kuyesa kwa band yolakwika ndi hysteresis yokhala ndi zone yakufa kuphatikiza "kuzungulira". Lag ndi dead zone ndi mikhalidwe yokhazikika. Komabe, chifukwa valavu ikuyenda, zolakwika zamphamvu ndi zolakwika "zozungulira" zimayambitsidwa. DYNAMIC SCAN TEST IKUPEREKA CHIZINDIKIRO CHABWINO CHA MMENE VALVE IDZAGWIRITSA NTCHITO pansi pa zochitika za ndondomeko, zomwe zidzakhala zamphamvu m'malo mokhazikika. Mayeso odziwika bwino komanso apamwamba atha kuchitidwa pogwiritsa ntchito pulogalamu ya ValveLink pakompyuta yanu. 3) Kuzindikira mwaukadauloZida zomwe zili ndi zoyezetsa zapamwamba zimayesa kuyesa kwamphamvu komwe kumaphatikizidwira muzowunikira wamba kuphatikiza mayeso achinayi amphamvu, mayeso a mawonekedwe a valve, ndi mayeso anayi owunikira. KUYESA kwa mavavu kumakulolani KUDZIWA kugunda kwa valve / ACTUATOR, kuchuluka kwa chizindikiro cha benchi, kuuma kwa masika, ndi mphamvu yotseka mipando. 4) Process bus Fischer Control Equipment Performance SERVICES ANGAYENEKE MAVAVU, NTCHITO, NDI ZOGWIRITSA NTCHITO ZOGWIRITSA NTCHITO ZINA ZOMWE ZILI NDI NTCHITO YOPHUNZITSIRA KUTHENGA KWAMBIRI pomwe FOUNDATION FieldBUS CONTROL LOOP IKHALA YOKHALA YOKHALA NDIPO NTCHITO IKUPITITSA ZOPHUNZITSA. Pogwiritsa ntchito njira zowunikira, ntchito zogwirira ntchito zitha kuzindikira ndikuzindikira zigawo zomwe zingayambitse mavuto. Ngakhale kuti njira zodziwira matenda zikuyenera kuchitika, mapeto awo amatha kutsimikiziridwa ndi ndondomeko kapena ochitapo kanthu. Njira zowunikira zitha kuchitidwa pa mavavu angapo nthawi imodzi. 2 Kugwiritsa ntchito ndi kukonza 2.1 mapulogalamu FIELDVUE Smart Valve positers anaikidwa mu April 1998 kuti agwiritsidwe ntchito mu 16 cracking ndi ethylene glycol units. Amagwiritsidwa ntchito kwambiri m'malo ena owongolera omwe amawongolera nthawi. Mwachitsanzo, valavu yothamanga ya ng'anjo yosweka ndi valavu yotulutsa chakudya ya ethylene glycol epoxy reactor control. Timagwiritsa ntchito opareshoni pamasinthidwe ake ndi kutsimikizira, mzere wake ukhoza kukhala mpaka 99%, zero ndi osiyanasiyana ndi kubwerera kutha kuwongoleredwa mkati mwazofunikira zolondola, kuwongolera kokhazikika komanso kuthekera kotsutsana ndi kusokoneza kumakhala kolimba, kumakwaniritsa kwathunthu zofunikira pakuwongolera njira. 2.2 kukonza Malo a FIELDVUE amafunikira chisamaliro chochepa ndipo kwenikweni alibe kukonza. Kusinthasintha kwake m'munda ndikolimba kwambiri. Koma kuti atsimikizire kuti ntchito yayitali komanso yokhazikika, ogwira ntchito pazida ayenera kuchita zinthu zotsatirazi. 1) Pofuna kuonetsetsa kuti malo ogwira ntchito ali abwino komanso kupewa kuwonongeka mwangozi, malo ogwira ntchito ozungulira malowa ayenera kuyang'aniridwa nthawi zonse. Pa nthawi yomweyo kuonetsetsa bata ndi ukhondo wa ntchito mpweya gwero, kuchepetsa zinthu zakunja chifukwa cha kusinthasintha chida ndi kulephera. 2) Ogwira ntchito pazida ayenera kuyang'ana kutayikira ndi momwe mavavu amagwirira ntchito sabata iliyonse kuti athetse zoopsa zobisika munthawi yake. Mwezi uliwonse, wogwiritsa ntchito pamanja amagwiritsidwa ntchito kuyang'ana mawonekedwe a malo, kuyang'ana zero point, range, linearity and return error and other parameters, ndikuwakonza ndikusintha kuti zitsimikizire kuti zikugwira ntchito. 3) Yang'anani ndi kusunga valavu yoyendetsera nthawi zonse kuti muwonetsetse kuti valve ikugwira ntchito. Panthawi imodzimodziyo, magawo a chiwongolero chowongolera cha DCS amakonzedwa kuti atsimikizire kugwirizana ndi kukhazikika kwa ntchito yogwirizana ndi malo. 4) Chifukwa cha DCS ndi zifukwa zina, ntchito za fieldbus ndi mapulogalamu ake sizinapangidwe bwino ndikugwiritsidwa ntchito, ndipo ntchito zanzeru zosamalira ndi kuzindikira sizingagwiritsidwe ntchito mokwanira, komabe zimachepetsanso kukonzanso tsiku ndi tsiku. Malinga ndi zotsatira zogwiritsira ntchito chomera chamankhwala m'zaka ziwiri zapitazi, wolamulira wanzeru wa valve ali ndi ntchito yokhazikika komanso kusintha kosavuta; Amatha kuzindikira kulumikizana kwachindunji ndi DCS, ndipo ali ndi ntchito yodzizindikiritsa, kukonza kosavuta; Itha kubzalidwa ku fieldbus, ** mayendedwe aukadaulo wamakono wamakono. Kupititsa patsogolo ndikugwiritsa ntchito mapulogalamu ake ndikuwongolera zomwe tikufuna mtsogolo. Kusanthula kwa valavu yanzeru komanso kusanthula zolakwika