Peb feem ntau pom muaj ntau ntawm cobblestones tso rau hauv qab transformers. Lawv lub hom phiaj yog dab tsi? Puas yog nws tsuas yog rau kev zoo nkauj?
[Duab]
Common transformers poob rau hauv ob pawg: qhuav-hom transformers thiab roj-immersed transformers.
Roj-immersed transformers siv roj ua qhov nruab nrab rwb thaiv tsev thiab tso siab rau nws kom txias- siv txoj hauv kev xws li roj-immersed tus kheej- txias, yuam- cua txias, dej txias, lossis yuam roj ncig. Cov khoom tseem ceeb muaj xws li cov tub ntxhais hlau, windings, roj tank, roj conservator, breather, tawg- pov thawj qhov cua (los yog lub siab nyem valve), radiator, insulating bushings, kais changer, roj relay, tus pas ntsuas kub, thiab roj purifier.
Piv rau qhuav-hom transformers, roj-immersed transformers muaj qhov zoo xws li cov nqi qis dua thiab kev saib xyuas yooj yim dua, thaum ua haujlwm tau zoo - muaj peev xwm kub dissipation thiab siab -voltage rwb thaiv tsev yuav tsum tau. Txawm li cas los xij, vim tias cov roj cua txias siv yog cov nplaim taws, cov hloov pauv no muaj qhov tsis zoo: qhov kev pheej hmoo ntawm hluav taws lossis tawg.
[Duab]
Qhov no yog qhov uas cov khoom xws li cobblestones tuaj rau hauv kev ua si. Cov cheeb tsam hauv qab lub tshuab hloov pauv feem ntau hu ua lub qhov tso tawm roj los yog cov twj tso kua mis, uas txuas mus rau qhov chaw khaws roj thaum muaj xwm txheej ceev lossis lub phiab.
Thaum muaj xwm txheej tshwm sim-xws li cov roj txau lossis tawg- cov roj hloov pauv mus rau hauv lub qhov tso tawm thiab ntws mus rau hauv lub qhov dej thaum muaj xwm txheej ceev.
Cov pits no yuav los yog tsis haum nrog lub grating. Yog tias siv cov grating, cov pob zeb tau muab tso rau saum nws; yog tsis yog, lawv muab tso ncaj qha rau hauv lub qhov. Qhov kev txiav txim siab siv lub grating yog nyob ntawm lub transformer hom, muaj peev xwm, thiab qhov ntsuas hluav taws xob, txhua yam ntawm cov kev cai tshwj xeeb. Duab
Muab cobblestones hauv qab roj-immersed transformers siv xya yam hauv qab no rau hauv tus account:
1. Tom qab siv lub sijhawm ntev, cov khoom siv hluav taws xob hloov pauv yuav raug kev txom nyem los ntawm kev laus lossis cov dej ntws; ib lub txaj ntawm cobblestones absorbs leaked roj, cia nws ntws smoothly mus rau hauv lub qhov chaw roj thaum muaj xwm ceev thiab yog li txo qhov kev pheej hmoo ntawm kev huam yuaj.
2. Thaum muaj xwm txheej, cov pob zeb cobblestones tiv thaiv cov roj hauv lub tshuab hluav taws xob los ntawm kev txau tawm sab nraud, pab tiv thaiv kev tawg.
3. Thaum muaj kev tawg lossis hluav taws kub, cov pob zeb cobblestones ua ib qho thaiv, tiv thaiv kom tsis txhob muaj hluav taws kub hnyiab mus rau hauv av thiab ua kom yooj yim rau kev tua hluav taws.
4. Lawv muab cov nyhuv txias me ntsis; Yog hais tias lub transformer overheats, cov cobblestones pab dissipate tshav kub.
5. Cobblestones yog cov khoom siv hluav taws xob, ua kom muaj kev nyab xeeb thiab yooj yim dua rau kev saib xyuas thiab cov neeg ua haujlwm ua haujlwm rau kev tshuaj xyuas.
6. Cobblestones muab kev poob siab. Lawv ua haujlwm zoo ib yam li cov pob zeb ballast ntawm txoj kev tsheb ciav hlau, ntxiv ib txheej ntawm cushioning.
7. Lawv inhibit cov nroj tsuag loj hlob.
Duab
# Cov cai tswj kev nyab xeeb hluav taws kom meej meej xav tau cov hauv qab no:
1. Cov roj hluav taws xob sab nraum zoov-immersed transformers thiab lwm yam roj- cov khoom siv hluav taws xob uas muaj roj ntau dua 1,000 kg yuav tsum tau nruab nrog lub qhov tso roj thiab cov chaw tso roj.
2. Lub ntim ntawm cov roj cia qhov yuav tsum tau txiav txim siab raws li 100% lossis 20% ntawm cov khoom siv roj tag nrho. Yog hais tias lub qhov loj me me rau 20% ntawm cov roj muaj peev xwm, hauv qab yuav tsum muaj cov kav dej xau kom xa cov roj xau mus rau hauv qhov chaw ntim roj thaum muaj xwm ceev. Cov kav dej yuav tsum muaj lub taub sab hauv yam tsawg kawg 100 mm, tso cai rau cov roj tawm sai sai thaum muaj xwm txheej ceev, thiab yuav tsum tau nruab nrog cov hlau grate lossis mesh screen ntawm qhov nkag.
3. Lub qhov dej cia cov roj yuav tsum muaj cov kab sib chaws uas muaj qhov sib txawv tsis ntau tshaj 40 hli; ib txheej ntawm cobblestones tsawg kawg yog 250 hli tuab, nrog particle loj li ntawm 50 mus rau 80 hli, yuav tsum tau muab tso rau ntawm daim phiaj no.
Thaum lub qhov nruab nrab ntawm qhov nruab nrab ntawm cov roj thaum muaj xwm ceev tau teeb tsa, nws qhov ntim yuav tsum tau txiav txim siab raws li tag nrho cov roj muaj peev xwm ntawm cov roj loj tshaj plaws - cov khoom siv hluav taws xob puv. Yog tias cov dej ruaj khov - cov kab hluav taws tua hluav taws raug teeb tsa, qhov ntim ntawm lub hauv paus tseem ceeb roj av yuav tsum suav nrog qhov ntim ntawm cov dej tsuag, kom muaj kev nyab xeeb txaus.
Vim li cas dej thiaj yuav tsum tau nyob rau hauv lub qhov dej thaum muaj xwm ceev? Yog li, dab tsi yog qhov sib tsoo roj qhov?
Cia kuv ua ntej luv luv qhia txog keeb kwm yav dhau.
[Duab]
Tam sim no, ntawm cov khoom siv hluav taws xob loj hauv substations,
roj-immersed hwj chim transformers
tau siv dav.
Nyob rau hauv qhov kev tshwm sim ntawm ib tug transformer kev huam yuaj,
ib tug loj npaum li cas ntawm cov ntxhia roj
tuaj yeem txau tawm los ntawm transformer
thiab tsaws rau thaj tsam ib puag ncig hauv lub sijhawm luv luv.
Tsis muaj kev tiv thaiv tshwj xeeb,
Qhov no yuav tsis tsuas yog paug lub substation thiab ib puag ncig ib puag ncig,
tab sis cov roj txau tuaj yeem ua rau hluav taws loj heev;
qhov loj ntim ntawm cov roj leaked yuav undoubtedly escalate qhov kev huam yuaj.
Yog li ntawd,
seb puas xav txog kev tiv thaiv ib puag ncig
los yog hluav taws kev nyab xeeb,
Nws yog ib qho tseem ceeb kom xyuam xim tso cov roj no
nyob rau hauv ib qho chaw tshwj xeeb,
cais nws los ntawm cov ntaub ntawv flammable nyob ib puag ncig,
khaws cia ntawm qhov kub thiab txias,
thiab khaws cia rau yav tom ntej kev sib cais, rov qab los,
kev ua, thiab rov siv dua.
Qhov no yog qhov xwm txheej substation kev sib tsoo roj qhov zoo li:
[Duab]
Qhov "200 cubic meters" qhia rau ntawm daim ntawv teev npe hauv daim duab
hais txog tag nrho cov ntim ntawm lub qhov,
tsis yog nws cov roj cia siab tshaj plaws.
Lub inlet ntawm qhov sib tsoo roj qhov
txuas mus rau lub ntsiab transformer lub hauv paus roj qhov -
thaj chaw hauv qab lub transformer uas muaj cov pob zeb cobblestones -
pub roj los ntawm lub ntsiab transformer
kom ntws mus rau hauv qhov kev sib tsoo roj qhov ntawm cov kav dej.
Lub sijhawm no,
ntau ntawm koj tej zaum yuav xav tsis thoob:
Peb txhua tus tau pom cov cobblestones hauv qab transformers,
tab sis vim li cas lawv nyob ntawd?
Peb puas tuaj yeem siv kub, nyiaj, lossis pob zeb diamond?
Zoo, cia kuv piav qhia.
Ua ntej tshaj plaws, peb tsuas yog tsis muaj nyiaj ntau ...
[Duab]
Tab sis rov qab mus rau lub ntsiab lus:
Cov cobblestones yeej ua haujlwm raws li txheej cais;
thaum muaj hluav taws xob transformer,
lawv pab tua cov nplaim taws.
Thib ob,
high -kub transformer roj
yog txias thaum nws dhau los ntawm cobblestones,
uas kuj pab txo qhov hluav taws kub
thiab pab tua nws.
Yog li, dab tsi yog lub hauv paus ntsiab lus ntawm kev sib tsoo roj qhov?
Cia wb mus saib qhov hla -sectional saib.
[Duab]
Tsuas tso tseg,
ib qho kev sib tsoo roj qhov ua haujlwm ua lub nkoj sib txuas lus. Thaum tsis muaj roj nchuav,
yog tias lub qhov spill container muaj dej,
Cov qib dej hauv ob qhov chaw (A thiab B) sib npaug.
Roj thiab dej muaj qhov sib txawv,
yog immiscible, thiab cais ib txwm.
Txij li cov roj tsawg dua li dej,
nws ntab saum npoo av
(raws li leej twg ua noj yuav paub).
Thaum cov roj nchuav nkag rau hauv qhov chaw ntim khoom,
nws exerts siab ntawm cov dej nto hauv lub ntsiab compartment (Compartment A),
yuam cov dej los ntawm qhov qhib qhib rau sab nraud (Compartment B);
raws li qhov ntim ntawm cov roj nchuav ntxiv,
cov dej ntws tawm mus rau hauv cov dej khib nyiab.
Yog tias koj tseem tsis tau nkag siab qhov no,
tsis txhob txhawj -
tsis tas yuav nug koj qhov kev txawj ntse,
raws li lub tswvyim yog qhov tseeb me ntsis nyuaj los piav qhia.
Cia peb siv qee cov duab kos
piav txog tus txheej txheem
kom meej thiab concisely.
[Duab]
Thaum xub thawj, lub qhov spill containment tuav dej.
Yog tias lub ntsiab transformer lossis siab -voltage reactor ntes hluav taws,
lub tshuab nqus dej activates,
thiab ib lub ntim loj ntawm insulating roj thiab roj- dej sib tov
ntws mus rau hauv chav tsev A.
Tom qab sib cais thiab sib cais hauv Chav A,
cov roj ntab saum toj kawg nkaus, thaum dej ntws mus rau hauv qab.
Tsav los ntawm lub siab ntawm cov roj,
Cov kua dej dhau los ntawm qhov qhib qhib rau hauv Chav B,
thiab tom qab ntawd tso tawm los ntawm qhov hluav taws xob.
Thaum kawg, nws nce mus txog qhov ruaj khov, sib npaug ntawm lub xeev:
[Duab]
Qhov no tso cai rau cov roj khaws cia hauv Chav A,
yooj yim rau kev txheeb xyuas thiab rov qab los.
Yog hais tias lub qhov dej yog thawj zaug tsis muaj dej,
thiab cov roj xau loj heev tshwm sim thawj zaug -
sau lub qhov nrog cov roj insulating -
ua raws li hluav taws kub hauv transformer lossis reactor
uas ua rau cov tshuaj tsuag dej,
ib tug loj sib tov ntawm roj thiab dej nkag mus rau hauv Compartment A.
[Duab]
Tom qab sib cais thiab sib cais hauv Chav A,
dej ntws mus rau hauv qab, thiab cov roj ntab rau saum.
Txawm li cas los xij, ib qho me me ntawm cov roj nyob rau sab sauv ntawm Compartment B
(xws li qhov siab tshaj plaws ntawm kwv yees li 1.7 m³ rau qhov chaw Dieling Station)
Thaum kawg yuav raug tso tawm mus rau ib puag ncig ib puag ncig los ntawm qhov hluav taws xob.
[Duab]
Thaum cov roj hauv Chav B tau raug tso tawm lawm,
lub kaw lus mus txog qhov ruaj khov, sib npaug ntawm lub xeev
(saib hauv qab no),
ntsib kev tsim qauv.
[Duab]
Raws li ib txwm muaj, lub qhov dej yuav tsum tau ntim nrog dej. Raws li cov kev cai ntawm GB 50229-2006,
"Code for Design of Fire Protection for Fossil Fuel Power Plants thiab Substations":
Thaum muaj xwm txheej ceev hauv nruab nrab cov roj cia
nruab nrog roj- ntsuas dej sib cais,
nws lub peev xwm yuav tsum tau txiav txim siab raws li 60% ntawm cov roj ntim ntawm ib lub tank roj.
Qhov no txhais tau tias lub qhov dej kub ceev
yuav tsum muaj peev xwm tuav tau
60% ntawm cov roj los ntawm ib tug transformer.
Cia peb khiav cov lej:
Piv txwv li:
Ntawm DL Substation, cov roj ntim rau ib theem ntawm # 2 thiab # 3 lub ntsiab transformers yog 65 t,
thaum uas rau #4 lub ntsiab transformer yog 60.5 t,
thiab cov roj ntim rau qhov siab -voltage shunt reactor tseem qis dua, ntawm 13 t.
Yog li ntawd, kev suav yog nyob ntawm ib theem ntawm # 2 lossis # 3 lub ntsiab transformer.
Qhov ceev ntawm transformer roj
pom tias yog 0.895 kg / m³,
thiab raws li cov qauv ρ=m/V, 65 t roj sib raug rau 72.6 m³.
60% ntawm cov roj tank lub peev xwm yog 43.56 m³.
Qhov siab tshaj plaws roj ntim ntim ntawm DL Substation lub qhov dej thaum muaj xwm ceev
raug suav ua
47.55 m³ (uas yog ntau dua 43.56 m³),
yog li nws ua raws li tus qauv.
Txog tam sim no, kuv ntseeg tias txhua tus nkag siab
cov qauv thiab kev khiav hauj lwm hauv paus ntsiab lus ntawm cov roj thaum muaj xwm ceev ~
