Na aja, nkume pan na ala ndị ọzọ na nnukwu ụwa resistivity, iji mezuo ihe ndị a chọrọ nke alagroundingeguzogide, a grounding
A na-ejikarị grid mejupụtara ọtụtụ ozu mgbada n'otu aka ahụ.Otú ọ dị, mgbe ụfọdụ a na-achọ ọtụtụ ihe ígwè na ihe ndị ahụ
ebe grounding dị nnọọ ukwuu, n'ihi ya, ọ na-esikarị ike iji nweta nguzogide ala a chọrọ.N'oge a, anyị nwere ike ịgbalị ibelata ụwa
resistivity nke ala nso grounding ahu, na-enwetakwa ihe mgbaru ọsọ nke ibelata grounding mgbochi.
1. Jiri ala resistivity dị ala (ya bụ, usoro nnọchi ala)
A na-eji ụrọ, peat, ala ojii na ụrọ aja dochie ala mbụ ya na oke ọkụ eletrik dị elu, yana coke na unyi.
nwekwara ike iji ma ọ bụrụ na ọ dị mkpa.Oke nnọchi bụ 1 ~ 2m gburugburu electrode grounding na 1/3 nke electrode grounding na
nso n'akụkụ ala.Mgbe ọgwụgwọ dị otú ahụ gasịrị, enwere ike ibelata nguzogide ala ruo ihe dịka 3/5 nke uru mbụ.
2. Ọgwụgwọ artificial dị ka ịgbakwunye nnu
Tinye nnu, coal cinder, carbon dust, oven ash, coke ash, wdg n'ime ala nke dị n'akụkụ ala ahụ iji meziwanye conductivity nke ala.
Ihe a na-ejikarị eme ihe bụ nnu.N'ihi na nnu nwere mmetụta dị mma n'ịkwalite ọnụọgụ nguzogide ala, ọ naghị adabere na oge
mgbanwe,na ọnụ ahịa dị ala.Usoro ọgwụgwọ bụ igwu olulu nwere dayameta nke ihe dịka 0.5 ~ 1.0m n'akụkụ ahụ nke ọ bụla na-agbadata, wee jupụta.
nnu na alan'ime olulu oyi akwa site oyi akwa.N'ozuzu, ọkpụrụkpụ nke oyi akwa nnu bụ ihe dịka 1cm, na ọkpụrụkpụ nke ala dị ihe dịka 10cm.Onye ọ bụla oyi akwa
nke nnu kwesịrị ịbụwere mmiri mee ya.Nri nnu nke tubular grounding ahụ bụ ihe dịka 30-40kg;Usoro a nwere ike ibelata ala ala
iguzogide nambụ (1/6-1/8) maka ala aja na (2/5-1/3) maka ụrọ aja.Ọ bụrụ na ị gbakwunye ihe dị ka 10kg unyi, mmetụta ahụ ga-aka mma.Dị ka unyi
bụ ihe siri ikeonye na-eduzi ya, a gaghị agbaze ya, banye ma mebie ya, ya mere oge ya dị irè dị ogologo.Maka nchara dị larịị, nchara gburugburu na ihe ndị ọzọ yiri ya
groundingozu, enwere ike nweta nsonaazụ kacha mma site na iji ụzọ ndị dị n'elu.Otú ọ dị, usoro a nwekwara adịghị ike, dị ka obere mmetụta
na nkume naala nwere ọtụtụ nkume;Nkwụsi ike nke grounding ahu na-ebelata;Ọ ga-eme ngwangwa corrosion nke grounding ahu;Ala
iguzogide gaji nwayọọ nwayọọ na-abawanye n'ihi agbaze nwayọọ nwayọọ na ọnwụ nke nnu.Ya mere, ọ dị mkpa ka a gwọọ ya otu ugboro ihe dị ka afọ 2 mgbe ọgwụgwọ ntuziaka gasịrị.
3. Mpụgagrounding
Karịsịa na ugwu ugwu, mgbe a na-achọ ka uru nkwụsị ala dị ntakịrị ma sie ike iru na ọnọdụ, ma ọ bụrụ na e nwere isi iyi mmiri ma ọ bụ
ala nke nwere ọnụọgụ nguzogide dị ala dị nso, enwere ike iji ebe ahụ mee ala electrodes ma ọ bụ dina n'okpuru mmiri grid grounding.Mgbe ahụ, jiri
waya mgbakwasị ụkwụ (dị ka warara nchara dị larịị) iji jikọọ ya dị ka mgbanaka mpụga.Otú ọ dị, ọ ga-kwuru na mpụga grounding
ngwaọrụ kwesịrị izere ọwa ndị na-agafe agafe iji gbochie ujo eletrik kpatara site na voltaji nzọụkwụ;Mgbe agafe okporo ụzọ, ndị e liri omimi nke
elu nke mpụga ekwesịghị ịbụ ihe na-erughị 0.8m.
4. Ihe na-emepụta ihe
A na-agwakọta eriri carbon ka ọ bụrụ ciment ka ejiri mee ihe dị ka electrode na-ala ala.Dịka ọmụmaatụ, a na-agbakwunye ihe dị ka 100kg nke eriri carbon n'ime 1m3 nke ciment
ime ka electrode na-ala n'ala (1m na dayameta).Site na nha, ike ya na-agbada nkwụsi ike (tụnyere
na ihe nkịtị) nwere ike belata ihe dịka 30%.A na-ejikarị usoro a eme ihe maka nchekwa ọkụ na ihe mgbakwasị ụkwụ.N'ime
ka ibelata nkwụsi ike nke mgbada n'ala, a nwekwara ike itinye electrode grounding agịga n'ime ihe na-eduzi.
ihe n'otu oge, nke mere na mwepu corona nwere ike na-aga n'ihu na-akụda ebili mmiri na carbon fiber si n'ọnụ agịga, nke nwere
mmetụta doro anya na ibelata nkwụsi ike n'ala ala.
5. Ọgwụgwọ kemịkalụ na ndị na-ebelata ihe ndọta
Ihe na-ebelata ihe mgbochi na-eji carbon powder na quicklime dị ka isi akụrụngwa nwere ike iji na ala ruo ogologo oge ma ga-
agaghị efu n'ihi na mmiri dị n'ime ala n'ihi na ọ nweghị dielectric, n'ihi ya, ọ nwere ike nweta a ogologo oge mmetọ free grounding kwụsiri ike.
nguzogide (ihe dịka 1/2 dị ala karịa nke ahụ tupu i jiri ihe na-ebelata ihe mgbochi na-emeso ala).N'ihi na nkume siri ike efere mpaghara, usoro nke
ili ala waya na ndị na-ebelata ihe mgbochi na-arụ ọrụ nke ọma, yana nguzogide ala ya nwere ike belata ihe dịka 40% ma e jiri ya tụnyere ya.
na nke ili naanị grounding waya.Tụkwasị na nke a, usoro a nwere ike nweta nsonaazụ dị mma ma ọ bụrụhaala na powdery eguzogide mbenata gị n'ụlọnga ma ọ bụ
ogologo-eme eguzogide mbenata gị n'ụlọnga na-efesa ke trenchi gwupụtara na tọgbọrọ na grounding waya, na mgbe ochie ala na- backfilled.
6. Usoro olili miri emi
A kọwala usoro a na mba ọzọ ruo ogologo oge, ma nweta nsonaazụ dị mma na iji ihe eji eme ihe.Na-adịbeghị anya, China nwekwara
malitere iji ụzọ ọhụrụ a nke mbelata nguzogide.Ogologo ahịrị ahụ kwụ ọtọ ejiri na usoro a na-abụkarị 5 ~ 10m
dabere na ọnọdụ ala.Ọ bụrụ na ọ dị ogologo, mmetụta agaghị apụta ìhè na ihe owuwu ahụ ga-esi ike.The grounding
ahụ na-emekarị Φ 20 ~ 75mm gburugburu ígwè.Mmetụta nke nchara gburugburu nwere dayameta dị iche iche na nguzogide ala dị oke
obere.Usoro a na-emetụta ụlọ ndị mmadụ juru ma ọ bụ ebe ndị dị warara ebe a na-atọgbọrọ grid.N'ọnọdụ ndị a, ọ na-esiri ike
chọta ebe kwesịrị ekwesị nke eli ozu grounding electrode na omenala ụzọ, na mma anya enweghị ike ekwe nkwa.Agbanyeghị na
Enwere ike ijide n'aka na nchekwa ahụ site na iji mkpuchi mkpuchi asphalt kpuchie ala ahụ, ọrụ ihe owuwu na ọnụ ahịa nrụnye bụ.
mụbara.Usoro olili miri emi bụ usoro kachasị dị irè maka ala aja, n'ihi na ọtụtụ n'ime akwa aja ya dị n'elu oyi akwa.
n'ime 3m, mgbe ala resistivity na miri oyi akwa dị ala.Tụkwasị na nke ahụ, usoro a na-emetụtakwa ebe nkume nkume nkume.
N'oge a na-arụ ọrụ % Obere akwụkwọ ntuziaka ma ọ bụ igwe na-egwupụta ihe nwere dayameta nke 50mm na n'elu.E liri ya n'ime oghere a kpụrụ akpụ Φ 20 ~ 75mm
gburugburu ígwè grounding ahụ, wee jupụta na carbon ngwa agha (agwakọta ya na carbon eriri mmiri slurry) ma ọ bụ slurry.N'ikpeazụ, ọtụtụ grounding
A na-ejikọta ahụ ndị nwere otu ọgwụgwọ ahụ n'otu aka ahụ iji mepụta ahụ zuru oke.The grounding ahụ wuru site na usoro a
oge na-emetụta obere oge ma nwee ike nweta nguzogide ala kwụsiri ike.N'otu oge ahụ, n'ihi olili miri emi, voltaji nzọụkwụ nwekwara ike ịbụ
belatara nke ukwuu, nke bara ezigbo uru maka nchekwa nchekwa nke onwe.Usoro a na-adaba adaba na-ewu ụlọ, ọnụ ala na ọnụ ala
dị ịrịba ama, nke a ga-ewu ewu ma tinye ya n'ọrụ.
Oge nzipu: Nov-05-2022