Case wongororo yeese 9 air compressors anogumburwa muchirimwa chemagetsi
Hazvina kujairika kuti mhepo compressor MCC isashande uye ese mhepo compressor zviteshi kumira.
Equipta muchidimbu:
Iwo mainjini makuru e2 × 660MW supercritical unit yeXX Power Plant ese akasarudzwa kubva kuShanghai Electric Equipment.Iyo turbine yemhepo inonzi Siemens N660-24.2/566/566, bhaira iri SG-2250/25.4-M981, uye jenareta iri QFSN-660-2.Chikwata ichi chine mafeni anotyairwa nemhepo, pombi dzemvura, uye 9 air compressors zvese zvinogadzirwa neXX Co., Ltd., izvo zvinosangana nemhepo yakamanikidzwa zvinodiwa zvekushandisa, kubvisa madota uye kushandiswa kwakasiyana muchirimwa chose. .
Pamberi pekushanda mamiriro:
Na21:20 musi waNyamavhuvhu 22, 2019, unit #1 yeXX Power Plant yanga ichishanda zvakajairika iine mutoro we646MW, magiya emarasha A, B, C, D, uye F aishanda, uye mhepo nechiutsi system yaishanda. mativi ose, vachishandisa nzira yakajairwa yekushandisa simba muchirimwa.Kuremerwa kweyuniti #2 iri kushanda zvakajairika, magiya emarasha A, B, C, D, uye E ari kushanda, mhepo nehutsi system iri kushanda kumativi ese, uye fekitori inoshandisa magetsi akajairwa.#1~#9 air compressor ese arikumhanya (yakajairika maitiro ekushanda), pakati pawo #1~#4 air compressors inopa mweya wakatsikirirwa we#1 uye #2 units, uye #5~#9 air compressors inopa kubvisa huruva uye kufambisa madota. Paunenge uchishandisa sisitimu, chiridzwa uye chakasiyana-siyana chakatsikirirwa magonhi ekusangana nemhepo anovhurwa 10%, uye yakamanikidzwa yemhepo huru pombi kumanikidza ndeye 0.7MPa.
#1 unit 6kV fekitori-inoshandiswa chikamu 1A yakabatana nemagetsi e #8 uye #9 air compressors;Chikamu 1B chakabatana nemagetsi e #3 uye #4 air compressors.
#2 unit 6kV fekitori-inoshandiswa chikamu 2A yakabatana nemagetsi e #1 uye #2 air compressors;chikamu 2B chakabatana nemagetsi e #5, #6 uye #7 air compressors.
process:
Pana 21:21 musi wa22 Nyamavhuvhu, mufambisi akaona kuti #1~#9 mhepo compressors yakagumburwa panguva imwe chete, pakarepo yakavhara chiridzwa uye zvakasiyana-siyana compressed air contact magonhi, akamisa madota kutakurwa uye guruva kubvisa hurongwa compressed mweya, uye pamusoro. -kuongororwa kwenzvimbo kwakawana kuti 380V Chikamu cheMCC chemhepo compressor yakarasika simba.
21:35 Simba rinopihwa kuchikamu cheMCC chemhepo compressor, uye #1~#6 air compressor inotangwa mukutevedzana.Mushure memaminitsi matatu, iyo mhepo compressor MCC inorasikirwa nesimba zvakare, uye iyo #1~#6 mhepo compressors rwendo.Icho chiridzwa chinoshandisa compressed air pressure yakadonha, mushandisi akatumira simba kuMCC chikamu chemhepo compressor kana, asi simba rakarasika zvakare maminetsi mashomanana gare gare.Iyo yakatanga mhepo compressor yakabva yagumburwa, uye kudzvanywa kwemhepo yakadzvanywa haina kukwanisa kuchengetedzwa.Takanyorera mvumo yekutumira kuendesa mayunitsi #1 uye #2 Mutoro wakadonha kusvika ku450MW.
Na22:21, chiridzwa chakatsikirirwa mhepo yakaramba ichidonha, uye mamwe magonhi ekugadzirisa mweya wakatadza.Iyo huru uye yekudziyazve mhepo inopisa mvura inogadzirisa magonhi eyuniti #1 akavharwa otomatiki.Tembiricha huru yehutsi yakawedzera kusvika 585°C, uye tembiricha yekudziyazve yakawedzera kusvika 571°C.℃, iyo boiler yekupedzisira madziro tembiricha inodarika iyo yekumisikidza alarm, uye iyo boiler bhuku MFT uye unit inobviswa ipapo.
Na22:34, chiridzwa chakadzvanyirirwa mweya wemhepo chakadonha kusvika pa0.09MPa, shaft seal steam supply inodzora gonhi reunit #2 rakavharika otomatiki, shaft seal steam supply yakakanganiswa, unit back pressure yakawedzera, uye "low pressure exhaust steam." tembiricha yakakwira" chiito chekudzivirira (ona mufananidzo wakabatanidzwa 3), iyo unit yakavharwa.
22:40, vhura zvishoma nzvimbo yakakwira yeyuniti #1 ine chiutsi chekubatsira.
Na23:14, bhaira #2 inobatidzwa uye yakabatidzwa kusvika pa20%.Pa 00:30, ndakaramba ndichizarura vheji yepamusoro, uye ndakaona kuti mirayiridzo yakawedzera, mhinduro yakaramba isina kuchinjwa, uye kushandiswa kwebhuku remunharaunda kwakanga kusina kunaka.Izvo zvakasimbiswa kuti iyo yakakwira side valve core yaive yakanamatira uye yaida kubviswa uye kuongororwa.Manual MFT ye #2 bhaira.
Na8:30, #1 bhaira inobatidzwa, na11:10 turbine yemhepo inomhanyiswa, uye na12:12 iyo #1 unit inobatanidzwa kune grid.
Processing
Na21:21 musi wa22 Nyamavhuvhu, macompressor emhepo #1 kusvika #9 akagumburwa panguva imwe chete.Nenguva dza21:30, vashandi vekugadzirisa magetsi nekuchengetedza kupisa kwemoto vakaenda kunzvimbo iyi kunoongororwa vakaona kuti simba rekushanda reMCC chikamu chemhepo compressor yakagumburwa uye bhazi rakapera simba, zvichiita kuti 9 air compressors irasike simba rePLC nezvose. air compressors yakagumburwa.
21:35 Simba rinopihwa kuchikamu cheMCC chemhepo compressor, uye air compressor #1 kusvika #6 inotangwa mukutevedzana.Mushure memaminitsi matatu, iyo MCC yemhepo compressor inorasikirwa nesimba zvakare, uye mhepo compressors #1 kusvika #6 rwendo.Zvadaro, mhepo compressor MCC kushanda simba chinja uye chegadziriro simba switch vakaedzwa kakawanda, uye mhepo compressor MCC chikamu bhasibha akagumburwa pashure maminetsi mashoma pashure kuchaja.
Kutarisa kubviswa kwedota kure DCS control cabinet, zvakaonekwa kuti switch yeA6 module yaive ichibatidza.Nhamba yekupinda (24V) ye11th channel yeA6 module yakayerwa uye 220V inoshandura ikozvino yakapinda.Uyezve tarisa kuti tambo yekupinda ye11th chiteshi cheA6 module yaive bhegi rejira pamusoro pe #3 yakanaka inochengeterwa madota.Dust muunganidzi anopedza fan mashandiro emhinduro chiratidzo.On-saiti yekuongorora #3 Iyo yekuvhiya siginecha yekupindura loop muguruva exhaust fan control bhokisi reiyo yakanaka ash bag guruva muunganidzi yakabatana zvisirizvo kune 220V AC yekudzora magetsi mubhokisi, zvichiita kuti 220V AC simba riyerere muA6 module. kuburikidza neiyo fan operation mhinduro chiratidzo mutsara.Yenguva refu AC voltage mhedzisiro, Semhedzisiro, kadhi rakatadza uye rakatsva.Vashandi vekuchengetedza vakafunga kuti magetsi uye switching inobuda module yekadhi module mukhabhineti inogona kusashanda uye haigone kushanda zvakajairwa, zvichikonzera kutsika kusingaite kwemagetsi I uye magetsi ekupa II switch echikamu cheMCC chemhepo compressor.
Vashandi vekugadzirisa vakabvisa mutsara wechipiri wakaita kuti AC ipinde mukati. Mushure mokutsiva iyo A6 module yakatsva, kugumburwa nguva dzose kwemagetsi I uye simba II switches yeMCC chikamu chemhepo compressor yakanyangarika.Mushure mekubvunzana nehunyanzvi hwevashandi veDCS mugadziri, zvakasimbiswa kuti chiitiko ichi chiriko.
22:13 Simba rinopihwa kuchikamu cheMCC chemhepo compressor uye ma compressor emhepo anotangwa mukutevedzana.Kutanga chikwata chekutanga-kushanda
Nyaya dzakafumurwa:
1. Iyo tekinoroji yekuvaka zvivakwa haina kumira.XX Electric Power Construction Company haina kuvaka wiring maererano nemifananidzo, basa rekugadzirisa harina kuitwa nenzira yakasimba uye yakadzama, uye sangano rekutarisa rakakundikana kupedzisa kuongorora uye kugamuchirwa, izvo zvakaisa njodzi dzakavanzika dzekushanda kwakachengeteka. chikwata.
2. Kudzora magetsi ekugadzira dhizaini haanzwisisike.Dhizaini yemhepo compressor PLC inodzora magetsi haina musoro.Yese mhepo compressor PLC inodzora magetsi emagetsi anotorwa kubva kune imwechete chikamu chebhasibar, zvichikonzera simba rimwechete uye kusavimbika.
3. The compressed air system design haina musoro.Panguva yekushanda kwakajairika, ese 9 air compressors anofanirwa kunge achimhanya.Iko hakuna backup air compressor uye iyo air compressor operation yekutadza mwero yakakwira, izvo zvinounza njodzi huru yekuchengetedza.
4. Nzira yeMCC yemagetsi yemhepo compressor haina kukwana.Simba rekushanda uye simba rekuchengetedza simba kubva kune zvikamu A uye B zve380V ash kubvisa PC kuMCC yemhepo compressor haigoni kuvharirwa uye haigoni kudzorerwa nokukurumidza.
5. DCS haina logic uye screen configuration ye air compressor PLC control power supply, uye murairo wakabuda DCS hauna zvinyorwa, izvo zvinoita kuti kuongorora kukanganisa kuve kwakaoma.
6. Kusakwana kuferefeta nekutarisira njodzi dzakavanzika.Iyo unit payakapinda muchikamu chekugadzira, vashandi vekugadzirisa vakatadza kutarisa iyo yenzvimbo yekudzora loop nenguva, uye iyo isiriyo wiring muguruva inounganidza exhaust fan control cabinet haina kuwanikwa.
7. Kushaikwa kwechimbichimbi mhinduro.Vashandi vekushanda vakashaya ruzivo mukubata nekukanganiswa kwemhepo, vaive nefungidziro yetsaona isina kukwana, uye kushaya mhinduro dzekukurumidzira.Vachiri kunyatsogadzirisa mamiriro ekushanda kwechikwata mushure mokunge ma compressor ose emhepo agumburwa, zvichiita kuti kudonha nokukurumidza mukumanikidzwa kwemhepo;Kana macompressor ese adonha mushure mekumhanya, vashandi vekuchengetedza vakatadza kuona chikonzero nenzvimbo yekukanganisa nekukurumidza, uye vakatadza kutora matanho anoshanda ekudzorera kushanda kwemamwe ma compressor emhepo nenguva.
Zvekungwaririra:
1. Bvisa wiring isiriyo uye shandura iyo yakatsva DI kadhi module yeash kubvisa DCS control cabinet.
2. Ongorora mabhokisi ekugovera uye kudzora makabati munzvimbo dzine hutsinye uye hunyoro hwekushanda nharaunda mukati mechirimwa kubvisa njodzi yakavanzika ye AC simba rinoyerera richipinda muDC;ongorora kuvimbika kweiyo magetsi emagetsi maitiro eakakosha ekubatsira muchina kudzora magetsi magetsi.
3. Tora mhepo compressor PLC kudzora magetsi kubva akasiyana PC zvikamu kuvandudza simba rekupa kuvimbika.
4. Kuvandudza simba rekupa nzira yemhepo compressor MCC uye ona otomatiki kupindirana kwemhepo compressor MCC simba rekupa imwe uye mbiri.
5. Kuvandudza logic uye screen configuration yeDCS air compressor PLC control power supply.
6. Gadzira hunyanzvi hwekushandura hurongwa hwekuwedzera maviri akasara air compressors kuti uvandudze kushanda kwekuvimbika kweiyo compressed air system.
7. Simbisa manejimendi ehunyanzvi, kuvandudza kugona kugadzirisa njodzi dzakavanzika, tora zvirevo kubva kune mumwe muenzaniso uye kuitisa nguva dzose wiring inspections pamakabati ese ekudzora uye mabhokisi ekugovera.
8. Ronga mamiriro ekushanda epa-saiti pneumatic mikova mushure mekurasikirwa nemhepo yakamanikidzwa, uye gadzirisa chirongwa chekukurumidzira chekumanikidzwa kwemhepo kukanganiswa muchirimwa chose.
9. Simbisai kudzidziswa kweunyanzvi hwevashandi, rongai zvibooreso zvetsaona nguva dzose, uye kuvandudza kugona kwemhinduro dzechimbichimbi.
Chirevo: Ichi chinyorwa chakaburitswa kubva paInternet.Zviri muchinyorwa ndezvekudzidza nekutaurirana chete.Air Compressor Network inoramba isina kwayakarerekera maererano nemaonero ari muchinyorwa.Kopirateti yechinyorwa ndeyemunyori wekutanga uye puratifomu.Kana pane kukanganisa, tapota taura nesu kuti tibvise.