Buku Lotsogolera Kukonza Makina Owongolera Kutentha kwa Dziko
Dongosolo lowongolera mu chomera chamagetsi cha geothermal kapena malo opangira magetsi limagwira ntchito ngati "ubongo" womwe umasunga njirayi kukhala yokhazikika, yotetezeka, komanso yogwira ntchito bwino. Kuyambira kuwongolera kuchuluka kwa madzi ndi nthunzi komanso kuwongolera kupsinjika kwa olekanitsa mpaka kuteteza zida monga ma turbine, mapampu, ndi zosinthira kutentha - chilichonse chimadalira zida zodalirika komanso njira zowongolera. Chifukwa malo otentha kwambiri amadziwika kuti ndi owononga, otentha kwambiri, ndipo ali ndi mpweya monga H₂S ndi CO₂, kukonza makina owongolera kuyenera kuchitidwa mosamala, kulembedwa, komanso kuyang'ana pachitetezo. Nkhaniyi ikupereka chitsogozo chothandiza pakukonza makina owongolera kutentha, kuyambira pakuwunika pafupipafupi mpaka njira zowongolera kudalirika.
1. Kuchuluka kwa Dongosolo Lolamulira Kutentha kwa Dziko
Musanayambe pulogalamu yokonza zinthu, ndikofunikira kumvetsetsa zigawo zazikulu zomwe zimapezeka mu dongosolo lowongolera kutentha kwa dziko:
1. Zosensa ndi zotumizira: kuthamanga, kutentha, kuyenda, mulingo, pH/conductivity, mpweya (H₂S), kugwedezeka, ndi zina.
2. Chowongolera chomaliza: valavu yowongolera, valavu yozimitsa, solenoid, actuator ya pneumatic/hydraulic/electric, variable speed drive (VSD) ya pampu.
3. Dongosolo lalikulu lolamulira: PLC/DCS, gawo la I/O, I/O yakutali, netiweki yolumikizirana (fiber/ethernet/serial), HMI/SCADA.
4. Chitetezo ndi makina olumikizirana: ESD (Emergency Shutdown), SIS (Safety Instrumented System) ngati ikugwiritsidwa ntchito, turbine trip, chitetezo cha jenereta.
5. Mphamvu ndi zida zogwiritsira ntchito: UPS, mphamvu yamagetsi ya 24VDC, gulu logawa, chipangizo cha mpweya, chowumitsira, ndi chowongolera.
6. Zingwe, mabokosi olumikizirana, makabati oyendetsera, ndi nthaka: zinthu zomwe nthawi zambiri "zimaiwalika," ngakhale zili zofunika kwambiri.
Pulogalamu yabwino yosamalira imalemba zinthu zonsezi mu kaundula wa katundu wokhala ndi ma tag, malo, ma specifications, ndi mbiri ya mavuto.
2. Mfundo Zoyambira Zosamalira: Zotetezeka, Zoyezeka, ndi Zolembedwa
Kukonza makina owongolera sikungokhudza "kukonza pamene asweka," koma kuonetsetsa kuti muyeso ndi kuyankha kowongolera kumakhalabe monga momwe zapangidwira. Mfundo zitatu zofunika:
– Chitetezo: kukhazikitsa LOTO (Lockout Tagout), njira zogwirira ntchito yotentha, zilolezo zogwirira ntchito m'madera a H₂S, ndikutsimikizira momwe zinthu zilili zopanda mphamvu.
- Kuyeza (metrology): kuwerengera kuyenera kutsatiridwa ndi muyezo; lembani zotsatira "monga momwe zapezekera" ndi "monga momwe zatsalira".
- Zolemba: kusintha kwa ma transmitter range, kusintha kwa control, kapena kusintha kwa logic kuyenera kudutsa mu management of change (MOC) ndi zosintha za zikalata.
3. Mavuto Okhudza Kutentha kwa Dziko Okhudza Machitidwe Olamulira
Malo ozungulira dziko lapansi amaika zofunikira zapadera pa zipangizo:
- Kutupa ndi kukhuthala kwa madzi amchere/madzi amchere kumatha kusokoneza ma impulse lines, kugogoda, ndi masensa.
– Kutentha kwambiri kumathandizira kukalamba kwa zingwe, ma gasket, ndi zamagetsi pafupi ndi malo osungira zitsime kapena malo olekanitsira zitsime.
- Kugwedezeka kozungulira ma turbine, mapampu, kapena mapaipi akuluakulu kumatha kumasula zomaliza ndikuwononga masensa ogwedera ngati atayikidwa molakwika.
– Chinyezi ndi sulfure zimawonjezera chiopsezo cha dzimbiri pa malo olumikizirana, ma PCB, ndi malo omangira zinthu.
Chifukwa chake, kukonza kuyenera kukhala kothandiza kwambiri kuposa m'mafakitale wamba okonza zinthu.
4. Pulogalamu Yoyendera Mwachizolowezi (Tsiku ndi Tsiku–Sabata–Pamwezi)
Kuyang'anira tsiku ndi tsiku/sabata iliyonse (ntchito)
- Yang'anirani momwe HMI ikuyendera: kuthamanga kwa separator, kutentha, mulingo, kuchuluka kwa madzi, ndi kupotoka kwa setpoint.
- Yang'anani ma alamu akuti "PV yoyipa", "kulephera kwa sensa", kapena "kutayika kwa kulumikizana".
- Tsimikizani momwe UPS ilili: momwe batire ilili, katundu wake, ndi zolemba za zochitika.
- Yang'anani zida zamadzi: kuthamanga kwa mutu, malo owumitsira, ndi kupezeka kwa madzi oundana mu ngalande.
Kuyezetsa mwezi uliwonse
- Kuyang'anira gulu lowongolera: ukhondo, kutentha kwa gululo, fani/fyuluta ya mpweya, chizindikiro cha hot hot kapena fungo loyaka.
- Kuyang'ana m'maso mawaya ndi ma gland: onetsetsani kuti palibe ming'alu, kusweka, kapena kulowa kwa madzi.
- Kukonza zitsanzo: yesani ma loops angapo ofunikira (monga kuthamanga kwa separator, mulingo wa ng'oma, turbine bypass control) kuti muwonetsetse kuti yankho lake ndi labwinobwino.
5. Kukonza ndi Kuyesa kwa Loop (Kotala ndi Chaka)
Kulinganiza kuyenera kutengera kufunikira kwa zinthu. Zipangizo zokhudzana ndi chitetezo ndi maulendo oteteza zimayesedwa pafupipafupi kuposa zida zosafunikira.
– Chotumizira cha Pressure/DP: fufuzani kuti palibe kusuntha, kulumikizana, ndi momwe mzere wa impulse ulili (kutsekeka komwe kungatheke).
– Kutentha (RTD/TC): tsimikizirani ndi choyezera chouma, yang'anani umphumphu wa chingwe cholipirira (cha TC).
– Flowmeter: ya orifice/DP, onetsetsani momwe mbale ya orifice ilili; ya vortex/ultrasonic, yang'anani chizindikiro, nthaka, ndi momwe chitoliro chilili.
- Mlingo: mafunde oyendetsedwa ndi radar/otsogozedwa amafunika kuyang'aniridwa ndi antenna/probe; Mlingo wa DP umafunika kusamala ndi mwendo wonyowa/mwendo wouma komanso kuchuluka kwa madzi.
Kuwonjezera pa kulinganiza mfundo, chitani mayeso a loop: kuchokera ku sensa → I/O → logic → output → final element. Cholinga ndikuwonetsetsa kuti palibe zolakwika za waya, kukula mu DCS, kapena makonzedwe a out-of-sync range.
6. Kukonza Valve Yowongolera ndi Chida Choyendetsera Zinthu
Ma valve owongolera ndi omwe amayambitsa mavuto ambiri chifukwa amagwira ntchito mosalekeza ndipo amakumana ndi madzi amphamvu.
Mndandanda waukulu:
- Mayeso a sitiroko: nthawi yotsegulira ndi kutseka, hysteresis, ndi deadband.
– Yang'anani malo oikira madzi (pneumatic kapena digital): madzi ndi oyera komanso okhazikika, fyuluta yowongolera si yotsekeka.
– Yang'anani ngati pali kutuluka kwa zinthu m'mabokosi, ngati pali kudulidwa/kukhazikika kwa mipando (kuthekera kwa kukokoloka/kuwononga), komanso ngati pali kulimba kwa piritsi la diaphragm.
– Pa ma valve okhala ndi mizere yamadzimadzi omwe amatha kukulitsa, konzani kutsuka kapena kusintha chokongoletseracho nthawi ndi nthawi.
Gwiritsani ntchito deta yochokera ku siginecha ya valavu (ngati ilipo) kuti mulosere kuwonongeka musanawonongeke konse.
7. Kudalirika kwa PLC/DCS, Network, ndi HMI/SCADA
Zolakwika zowongolera nthawi zambiri sizimachokera ku zida zakumunda, koma kuchokera ku zomangamanga zowongolera.
– Kusunga ndi kukonza: Konzani zosunga zobwezeretsera za mapulogalamu a PLC/DCS, akatswiri a mbiri ya database, ndi makonzedwe a HMI. Zosunga zobwezeretsera zakonzedwa kuti zisasokoneze ntchito.
- Thanzi la netiweki: yang'anirani kuchedwa, kutayika kwa paketi, mtundu wa ulusi, ndi momwe switch/UPS imagwirira ntchito pa RTU kapena I/O yakutali.
- Kuchuluka kwa mphamvu: kuyesa kulephera kwa CPU, magetsi owonjezera, ndi netiweki yozungulira (ngati mukugwiritsa ntchito).
- Kuwongolera ma alamu: chepetsani ma alamu osefukira kwa madzi, khazikitsani zinthu zofunika kwambiri, ndikuchotsa ma alamu osowetsa mtendere kuti ogwira ntchito aziganizira kwambiri zomwe zili zofunika.
8. Kuyesa kwa ESD/SIS ndi Kulumikizana kwa Chitetezo
Pa malo osungiramo zinthu zotenthetsera pansi pa nthaka, maloko olumikizirana monga maulendo a turbine, kuthamanga kwambiri, kapena kutsika pang'ono pamakina ena ayenera kuyesedwa nthawi yoyenera.
Machitidwe olimbikitsidwa:
- Kuyesa kogwira ntchito (kuyesa umboni) ndi njira zolembedwa ndi mboni ngati malamulo akufunika.
- Lembani nthawi yoyankha, momwe zinthu "zinapezekera", zomwe zapezeka kwakanthawi, komanso njira zowongolera.
- Onetsetsani kuti ma bypass interlocks akuyendetsedwa mosamala (bypass management): pali zilolezo, nthawi yoikika, ndi zidziwitso zomveka bwino pa HMI.
Ngati dongosololi likugwiritsa ntchito SIS yoyesedwa ndi SIL, tsatirani zofunikira za IEC 61511/61508 kuti mupeze umboni wotsimikizira mayeso ndi kuwerengera kwa PFD.
9. Kusanthula Zosokoneza ndi Kusamalira Mogwirizana ndi Matenda
Kuti muwongolere kudalirika, phatikizani kukonza nthawi ndi nthawi ndi njira yogwiritsira ntchito deta:
- Zomwe zikuchitika: Kusuntha kwa PV, phokoso lowonjezeka la chizindikiro, kapena kusintha kwa makhalidwe a ma valavu kungakhale zizindikiro zoyambirira.
– RCA (Root Cause Analysis): Ulendo uliwonse wofunika umasanthulidwa, osati kungo "konzanso ndi kupita".
- Zida zofunika kwambiri: ma transmitter a m'sitolo, ma module a I/O, magetsi, malo oimikapo magalimoto, ma solenoid, ndi zigawo za UPS malinga ndi kusanthula kwa nthawi yotsogolera.
- Kukhazikitsa miyezo: kuchepetsa kusiyanasiyana kwa mtundu/ma model kuti zithandize kugulitsa, kuphunzitsa, komanso kugwirizana.
10. Luso la Ogwira Ntchito, Njira, ndi Ma Audit
Ukadaulo wowongolera ukusintha nthawi zonse; luso la ukadaulo liyenera kusungidwa kudzera mu maphunziro okhazikika m'magawo monga kuwerengera, kulumikizana kwa mafakitale, chitetezo cha pa intaneti, ndi chitetezo cha H₂S. Onetsetsani kuti ntchito zonse zikutsatira njira zoyendetsera ntchito (SOPs), mafomu owerengera, ndi mndandanda wowerengera. Chitani kafukufuku wamkati kuti muwone ngati zikutsatira malamulo, mtundu wa zikalata, komanso momwe pulogalamu yokonza imagwirira ntchito.
Kutseka
Kusamalira makina owongolera kutentha kwa dziko lapansi ndi njira yopezera ndalama mwachindunji pa chitetezo ndi magwiridwe antchito opangira. Mwa kuphatikiza kuwunika kwanthawi zonse, kuyeza kwa ma calibration, kuyeza kuzungulira ndi kutseka, kukonza bwino ma valavu, ndi kasamalidwe kabwino ka PLC/DCS ndi netiweki, malo osungira kutentha kwa dziko lapansi amatha kuchepetsa kuzima kwa madzi, kupewa maulendo obwerezabwereza, ndikusunga magwiridwe antchito bwino. Chinsinsi cha kupambana chili mu kusinthasintha: njira zomveka bwino, deta yonse, ndi chikhalidwe chantchito chomwe chimayika patsogolo chitetezo ndi khalidwe laukadaulo.
