Ka ọ dị ugbu a, ọkụ ọkụ nke transformers na reactors na ụlọ ọrụ UHV na-ejikarị arụ ọrụ nkedo ma ọ bụ ihe owuwu brik na ntụ ntụ, nke nwere ụfọdụ mmetụta mkpuchi ụda. Otú ọ dị, n'ihi ụda ụda dị ala nke ndị na-agbanwe agbanwe na reactors na ogologo ebili mmiri nke ụda ụda, ụda ụda ha na ike nnyefe dị ike nke ukwuu, ya mere mkpuchi ụda na mmetụta mbelata mkpọtụ na-adịkarị njọ. Tụkwasị na nke a, ihe mgbochi ụda dị ugbu a na mkpuchi dịpụrụ adịpụ nke ụda UHV abụghị nke ọma maka njirimara ụda ụda dị ala nke ọdụ ụgbọ mmiri, na mmetụta mbelata mkpọtụ adịghị mma. Ọ bụrụ na anyị nwere ike ịtụle njirimara nke ọdụ ụgbọ mmiri UHV nke ụda etiti na nke dị ala na-achịkwa, ma nakwere usoro ihe na-eme ka ụda dị mgbagwoju anya nke nwere ma ịgbachi nkịtị na ọrụ na-amịpụta ụda, a na-atụ anya na ọ nwere ike ibelata ụda etiti ugboro ugboro na obere ụda ma nwee ọkụ ọkụ na ihe mkpuchi. Nke a dị oke mkpa maka ịkwalite mma gburugburu ebe obibi ụda nke ọdụ ụgbọ mmiri.
Dabere na nke a, isiokwu a na-enyocha njirimara ike isi iyi mkpọtụ nke akụrụngwa bụ isi nke ọdụ UHV. N'ihi ihe achọrọ maka ihe ndị dị n'ọdụ ahụ iji nwee ihe mgbochi ọkụ, ihe mkpuchi na ihe ndị ọzọ, anyị họọrọ ime nnwale nnabata ụda otu na nke jikọtara ọnụ na ihe nlele ụfụfụ melamine , ihe nlele efere pere mpe, na ihe nlele simenti a fụchara ụfụfụ, ma tụọ aro nhazi nke na-amịkọrọ ụda nke dabara adaba maka mbelata mkpọtụ na ọdụ UHV. Nke a nwere mkpa nduzi bara uru maka ngwa injinia bara uru.
Ⅰ Nyocha nha mkpọtụ nke akụrụngwa isi nke ọdụ ụgbọ mmiri UHV
N'oge ọrụ nke UHV substations, isi mkpọtụ isi iyi na-agụnye elu-voltaji transformers, shunt reactors, substation owuwu, wdg The transformer mkpọtụ na-agụnye ahu mkpọtụ na jụrụ ngwaọrụ mkpọtụ, na shunt reactor mkpọtụ bụ electromagnetic mkpọtụ, na substation Ọdịdị mkpọtụ bụ corona mkpọtụ. Ụda Corona na-abụkarị ọkara ruo ogologo oge, na-ebelata ngwa ngwa n'oge mgbasa, ma nwee obere mmetụta. Ụda ụda dị ala na-emepụta site na nhazi ime nke ndị na-agbanwe agbanwe na shunt reactors na-ebelata nwayọọ nwayọọ ma nwee mmetụta dịgasị iche iche. Ya mere, njikwa mkpọtụ nke transformers na shunt reactors bụ ihe na-elekwasị anya na njikwa mkpọtụ na ọdụ ụgbọ ala.
- Isi ihe ntụgharị ụda mkpọtụ nyocha
A na-atụ ọkwa ike ụda nke ihe ntụgharị site na iji usoro ike ụda. Na-ewere ihe ngbanwe nke otu nkeji dị ka ihe nlegharị anya, ebe dị anya n'etiti ahịrị contour edebere na elu ikuku ikuku bụ 2m, edobere ahịrị contour abụọ edepụtara, nke dị na ụgbọ elu kwụ ọtọ nke 2m na 4m n'otu n'otu. Ebe a na-atụ ihe niile dị n'ahịrị contour a kapịrị ọnụ, ebe dị n'etiti ebe nha dị nso bụ 1m. A na-eji nyocha ike ụda tụọ isi ihe site na isi.
Mgbe ibu ike nke otu ihe ngbanwe dị 2000MW, nsonaazụ nha ụda ike nke usoro C nke ihe ngbanwe dị na Group I. Ogo ụda ụda A-dị arọ bụ nke kachasị na band 1/3 octave ugboro yana etiti etiti nke 100, 125, 160 na 200 Hz nke mgbanwe UHV. Dị ka usoro mgbanwe ụda mkpọtụ ọgba aghara si kwuo, mkpọtụ a na-eme ugboro ugboro na-esite na ụda electromagnetic nke ahụ transformer. Ya mere, mgbe ị na-ebelata mkpọtụ mgbanwe mgbanwe, ekwesịrị inye ihe kacha mkpa iji belata bandwit 100 ~ 200Hz. N'oge nha, ibu ike nke otu igwe ngbanwe kwụsiri ike na 2000MW, yana nha nha ụda ụda nha nha nha nha nhata bụ 102.7dB(A).
- Ntụle na nyocha nke ụda reactor dị elu
Usoro nha nke reactor ụda ike larịị bụ otu ihe ahụ nke transformer. N'iji usoro B nke reactor myirịta na mpaghara UHV dị ka ihe atụ, anya dị n'etiti ahịrị contour edepụtara na elu ikuku ntụaka bụ 1m, na ahịrị contour abụọ edepụtara nke dị elu nke 1.5m na 3m ka edobere n'otu n'otu. Ebe dịpụrụ adịpụ n'etiti ebe a na-atụ ihe dị n'akụkụ bụ 1m.
Nyocha ahụ na-egosi na n'ime band 1/3 octave dum, ihe ndị na-eme ka ọ dị ala na-eme ka ọnụ ọgụgụ buru ibu, n'etiti nke ụda ike na 100Hz ugboro bụ nke kasị ukwuu, na-eru 96.4dB (A), nke bụ 11.5dB (A) dị elu karịa ụda ike ụda nke 200Hz. Ike ụda dị na 1/3 octave band ebe 100Hz dị na-egosi 91.2% nke ike mgbochi ụda dị elu nke otu oge. Ya mere, enwere ike ikpebi na ihe nnyonye anya na nkesa ụda mpaghara reactor sitere na ụda ụda 100Hz.
Ⅱ Ihe ndị na-asọ oyi na nnwale efere obere oghere
N'ihe gbasara nhazi injinịa njikwa mkpọtụ, ọ na-esikarị ike inweta mmetụta mbelata mkpọtụ a tụrụ anya ya site n'iji otu ihe maka ịmịkọrọ ụda na ọgwụgwọ mkpuchi. Ya mere, a na-ejikarị usoro njikọta ihe ndị na-amịkọrọ ụda belata mkpọtụ. Karịsịa n'ime ụlọ nwere nnukwu olu na oge ntụgharị ogologo, ojiji a na-ahụkarị. Iji mụọ usoro ịmịkọrọ ụda nke dabara adaba maka njikwa mkpọtụ na ọdụ UHV, anyị ga-ebu ụzọ tụlee ihe mkpuchi na ihe ndị na-egbochi ire ọkụ nke ihe ahụ, nke abụọ, anyị ga-ejikọta usoro ụfọdụ iji chọpụta usoro ịmịkọrọ ụda.
Ka ọ dị ugbu a, a na-eji efere ndị gbawara agbawa na ihe na-etinye ụda n'ime mkpuchi mkpuchi ụda nke ọdụ ụgbọ mmiri UHV iji belata mkpọtụ, mana mmetụta adịghị mma na bandwit dị ala. Nke a chọrọ ijikọta njirimara isi mmalite ụda nke akụrụngwa bụ isi nke ọdụ ụgbọ mmiri UHV. Mgbe achọpụtachara usoro mbelata mkpọtụ a kapịrị ọnụ, otu esi ahọpụta ihe ndị na-anabata ụda porous yana otu esi achọpụta usoro nnabata ụda na-aghọ isi ihe na-achịkwa mkpọtụ na ọdụ ụgbọ ala. N'ime ndị na-esonụ, a na-ahọrọ ihe atụ atọ nke efere micro-perforated, ụfụfụ melamine, na simenti foamed ka ha jikọta ya na ibe ya iji mee nyocha.
- Ngwakọta efere obere oghere nwere okpukpu abụọ
Nnwale nnwale nke obere oghere, nke ọnụ ọgụgụ perforation nke micro-perforated plate sample 1 bụ 1.5%, ọkpụrụkpụ efere bụ 1mm, na dayameta pore bụ 0.7mm; ọnụ ọgụgụ perforation nke micro-perforated efere sample 2 bụ 1.1%, efere ọkpụrụkpụ bụ 1mm, na pore dayameta bụ 0.7mm, Micro-perforated efere sample 3, perforation ọnụego bụ 0.7%, efere ọkpụrụkpụ bụ 1mm, na oghere dayameta bụ 0.7mm.
Emere nnwale abụọ na nchikota obere obere perforated efere okpukpu abụọ. Nnwale 1 bụ nchikota nke micro-perforated efere sample 2 na micro-perforated efere sample 1, na nnwale 2 bụ a Nchikota nke micro-perforated efere sample 1 na micro-perforated efere sample 3. Abụọ tent nke nnwale na okpukpu abụọ-layer micro-perforated efere Nchikota Ọdịdị na-egosi na ụda absorption ọnụọgụ na 100Hz, na-egosi na ụda absorption kacha 0.7. 500Hz ruo 600Hz na ụdị nnwale abụọ ahụ. N'ime eriri ugboro karịa 600Hz, ọnụọgụ nnabata ụda na-ebelata nke nta nke nta.
- Nchikota nke simenti foamed na micro-perforated osisi
Nke mbụ, a na-eji ihe owuwu na-amịpụta ụda na-ejikọta ciment na-ekpo ọkụ na otu efere micro-perforated nke otu oyi akwa. Emere nnwale abụọ dị iche iche dị iche iche site na ijikọta ciment na-ekpo ọkụ na otu efere micro-perforated nke otu oyi akwa. N'ime nyocha abụọ ahụ, a na-etinye ciment nke ụfụfụ ahụ n'ihu efere micro-perforated.
Ọ fọrọ nke nta ka ọ bụrụ na ọ dịghị mgbanwe dị ukwuu n'etiti data nke Nnwale 3 na Nnwale 4. The ụda absorption arụmọrụ nke jikọtara Ọdịdị ihu ọma adịghị agbanwe na obere mgbanwe na ọkpụrụkpụ nke simenti foamed na anya n'etiti simenti foamed na micro-perforated efere. Na 100Hz, ọnụọgụ nnabata ụda dị gburugburu 0.4, na 250Hz, ọnụọgụ nnabata ụda na-erute oke ya, na gburugburu 900Hz, ọ na-erute uru kachasị nke ọnụọgụ nnabata ụda ọzọ.
- Melamine ụfụfụ na nchikota panel micro-perforated
A na-eme nnwale abụọ na nchikota nke ụfụfụ melamine na otu mpempe akwụkwọ micro-perforated. N'ime ụdị nnwale abụọ ahụ, a na-etinye ụfụfụ melamine n'ihu efere micro-perforated. Ọnụ ọgụgụ nnabata ụda na 100Hz na otu nnwale abụọ ahụ dị gburugburu 0.7, yana n'etiti 100Hz na 500Hz, ọnụọgụ nnabata ụda dị elu karịa 0.7. N'ihe dị ka 500Hz, ọnụọgụ nnabata ụda na-ebelata, mana ka ọnụọgụ na-abawanye, ọnụọgụ nnabata ụda na-abawanye nke nta nke nta. Ngwakọta a nwere mmetụta mmịpụta ụda dịtụ mma n'ime ma ọ dịkarịa ala ugboro ole ma ọ bụ nke dị elu.
Ⅲ. Nyocha nke nsonaazụ nnwale
Dị ka e ji mara nke mkpọtụ isi iyi nke isi akụrụngwa nke UHV substation nke a ma ama na ala ugboro band, nnwale e rụrụ site na-ahọpụta a micro-perforated efere mejupụtara Ọdịdị, a foamed simenti tinyere micro-perforated efere mejupụtara Ọdịdị, na a melamine ụfụfụ gbakwunyere micro-perforated efere mejupụtara Ọdịdị. Nsonaazụ ule na-egosi na atụmatụ nchikota atọ niile nwere ike nweta ụfọdụ mmetụta mmịkọ ụda n'ime obere ugboro ole, mana otu esi etinye ya na injinia n'ezie chọrọ usoro mbelata mkpọtụ kpọmkwem.
- Nchikota efere obere oghere
bọọdụ micro-perforated nwere okpukpu abụọ nwere ike ịgbasa ụda ugboro ugboro nke bọọdụ micro-perforated nke otu oyi akwa. Dabere na ụkpụrụ nke impedance matching, ụkpụrụ nke Nchikota imewe bụ na perforation ọnụego nke n'ihu oyi akwa nke micro-perforated mbadamba dị ukwuu karịa perforation ọnụego nke azụ oyi akwa nke mbadamba. Ngwakọta ọnụ nke oghere micro-perforated nwere ike nweta ọnụọgụ nnabata ụda karịa 0.7 na ọnụọgụ ugboro nke 150-800Hz mgbe ọkpụrụkpụ nke ihe niile jikọtara ọnụ bụ 20cm. Mgbe ọkpụrụkpụ nke ihe niile ejikọtara ọnụ bụ 30cm, ọ nwere ike nweta ọnụọgụ nnabata ụda karịa 0.7 n'ogo nke 100-800Hz.
- Simenti nwere ụfụfụ gbakwunyere obere ihe mejupụtara efere mejupụtara
Ịgbakwunye simenti na-afụ ụfụ n'ihu bọọdụ micro-perforated nwere ike ime ka ụda absorption ugboro nke bọọdụ micro-perforated gbasawanye, na ciment a na-agba ụfụfụ nwekwara ike ịrụ ọrụ na-egbochi ọkụ.
Simenti foamed gbakwunyere bọọdụ micro-perforated nke otu oyi akwa nwere ike nweta ọnụọgụ nnabata ụda karịa 0.7 na ọnụọgụ ugboro nke 150-1000Hz mgbe ọkpụrụkpụ nke ihe niile jikọtara ọnụ bụ 20cm. Simenti foamed gbakwunyere akụkụ abụọ nke micro-perforated nwere ike nweta ọnụọgụ nnabata ụda karịa 0.7 na ọnụọgụ ugboro nke 150-1400Hz mgbe ọkpụrụkpụ nke ihe niile jikọtara ọnụ bụ 20cm. Mgbe ọkpụrụkpụ nke ihe niile ejikọtara ọnụ bụ 30cm, ọ nwere ike nweta ọnụọgụ nnabata ụda karịa 0.7 n'ogo nke 100-1400Hz. N'otu oge ahụ, ka obere njupụta nke simenti foamed, na-eme ka porosity dịkwuo ukwuu, ma ka mma mmetụta mmịpụta ụda dị ala na-adị ala.
- N'ihi na ngwakọta Ọdịdị nke ihe na-adọta ụda na efere micro-perforated, ihe na-eme ka ụda olu nwere ike gbasaa ụda ụda ugboro ugboro nke obere ihe na-eme ka ọ dịkwuo anya n'etiti ụda ụda na obere ihe. Ọnụ ọgụgụ nnabata ụda nke ọkara na elu frequencies na-abawanye, na ọnụ ọgụgụ mmịpụta ụda na-aga na obere ugboro. Site n'ịbawanye ọkpụrụkpụ nke ihe na-amịpụta ụda, ọnụọgụ ụda ụda dị ala na-ebelata ntakịrị, na etiti na nke dị elu na-abawanye ọnụọgụ ụda. Ịbawanye ọkpụrụkpụ nke oghere oghere n'azụ efere micro-perforated nwere ike ime ka mmịnye ụda dị ala dị ala. Ihe ndị na-anabata ụda gbakwunyere akụkụ abụọ nke micro-perforated nwere ụda ụda dị mma na ụda ụda ugboro ugboro karịa karịa ihe na-adọrọ ụda gbakwunyere otu akụkụ nke micro-perforated panel.
Enwere ike ịhụ site na nyocha nke data nnwale na ụfụfụ melamine gbakwunyere otu efere micro-perforated nke nwere otu oyi akwa nwere ike nweta ọnụọgụ nnabata ụda karịa 0.6 na ọnụọgụ ugboro nke 200-1600Hz mgbe ọkpụrụkpụ nke ihe niile jikọtara ọnụ bụ 20cm. Mgbe ọkpụrụkpụ nke ihe niile ejikọtara ọnụ bụ 30cm, enwere ike nweta ọnụọgụ nnabata ụda karịa 0.6 n'ogo nke 100-1600Hz. Melamine ụfụfụ gbakwunyere akụkụ abụọ nke micro-perforated nwere ike nweta ọnụọgụ nnabata ụda karịa 0.7 n'ogo nke 200-1600Hz mgbe ọkpụrụkpụ nke ihe niile jikọtara ọnụ bụ 20cm. Mgbe ọkpụrụkpụ nke ihe niile ejikọtara ọnụ bụ 30cm, enwere ike nweta ọnụọgụ nnabata ụda karịa 0.7 n'ogo nke 100-1600Hz.
Dabere na nyocha nke njirimara ugboro mkpọtụ nke UHV isi transformer na elu-voltage shunt reactor, ụda ike nke UHV isi transformer na-elekwasịkarị anya na 100-200Hz, na ụda ike nke igwe eletrik dị elu na-etinyekarị na 100Hz. Iji họrọ ihe na-ebelata mkpọtụ, ọ dị mkpa ijikọta ugboro ugboro nke isi ụda ụda abụọ. N'otu oge ahụ, ọ dịkwa mkpa ijikọ ụzọ mbelata mkpọtụ na nhazi saịtị nke ọdụ ụgbọ mmiri iji chịkwaa mkpọtụ na ngwakọta kacha mma nke ihe na ụzọ.
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