icon Jiangshan Scotech Electrical Co., LTD
AkụkọFaq
igAsụsụ
8613857027511

Na prọfer na mmanụ: Ngwa na ihe ọghọm

Jun 10, 2025

Hapụ ozi

Ihe juputara
  1. 1. Kedu ka PCBS?
  2. 2.hnorical iji pcbs na mmanụ transformer
  3. 3.hazards nke PCB
  4. 4.analytical usoro maka nchọpụta PCB na mmanụ transformer
  5. 5.PCB mmanye na ọkwa dị ugbu a
  6. 6pcb usoro na usoro
  7. 7.Regrotory chọrọ
  8. 8ala nhọrọ nhọrọ maka PCB na-agbanwe mmanụ mmanụ
  9. Mmechi

Na prọfer na mmanụ: Ngwa na ihe ọghọm

 

pcbs

1. Kedu ka PCBS?

 

Polychlorinated Biphenyls (PCB)bụ otu ihe kemịkal nke ihe ndị a na-eji eme ihe na ọrụ ụlọ ọrụ na-arụ ọrụ nkwụsi ike, ihe na-egbochi ya, na iguzogide. Ihe mejupụtara ya na irighiri ihe dị iche iche nke ọma, PCB bụ otu mgbe, PCB bụ otu mgbe, ndị na-agbanwe na nke ndị ọzọ na-ejikwa ya. Agbanyeghị, n'ihi nke haNnọgide na gburugburu, bioctioncation nwere ike, yana mmetụta na-egbu egbu{{0} gụnyere carcinogenitity na ọgba aghara na njedebe - machibidoro PC na narị afọ nke 20 n'okpuru mbadamba mba dị kaMgbakọ Stockholm na-adịgide adịgide (Mpekere).

N'agbanyeghi usoro ha -}}} di iche na onodu oma gburugburu ebe obibi, na-achọ njikwa, mkpofu, na usoro mmegharị. Nnyocha nyocha na-aga n'ihu na-atụle ogologo oge ha {{2} Ratloway mmetụta gburugburu ebe obibi ma zụlite usoro emebi emebi. Ulo ndi oru iwu gburugburu uwa iwu iji jikwaa PCB na-ejikwa PCB. Nwere ngwaọrụ ma gbochie ndi ozo.

2.hnorical iji pcbs na mmanụ transformer

Site na 1930s ruo 1970s, a na-agbakwunye mmanụ ndị na-ebugharị ya n'ihi ihe ndị ha pụrụ iche pụrụ iche. Ihe kacha mkpa gụnyere:

Kacha mmaNjirimara Dielecticric

Dị elu dielectric na-egbochi ndị na-agbadata na-agbagha

01

Nnukwu nkwụsi ike

Iguzogide nduzi na oke okpomoku di elu nke ndi ozo

02

Ikike kemịkalụ

Iguzogide oxidation na mmebi ọrụ mmanụ dị ogologo ndụ

03

Ọkụ na-eguzogide

Nchekwa nchekwa dị mma

04

Dị ala

Mwepu mmanụ

05

3.hazards nke PCB

Environmental Impacts

Mmetụta gburugburu ebe obibi

 

  1. Na-ekwenye ekwenye: Ọgwụ na-eguzogide ọgwụ sitere na ọkara na ọkara- di ndu site na otutu iri
  2. Bioccution: Nwere ike biomagnify ruo ọtụtụ nde oge site na ọtụtụ oge
  3. Ogologo- Gwuo njem: Nwere ike ịgbasa ụwa niile na ikuku, ọbụna ruo na mpaghara
  4. Ala na mmerụ mmiri: Mmiri sitere na PCB-}} nwere transformers na-ebute ogologo {{1} Rathel

Mmetụta Ahụike

 

  1. Na Carcinogenidity: Nkewa dị ka otu carcinogens site na Iarc
  2. Ngbanwe ọgba aghara: Ntinye aka na homonụ nke thyrogen, estrogen na ọrụ ndị ọzọ
  3. Neurotoxication: Mmetụta na-eme ka mmepe nke nwatakịrị
  4. Immunosufpinye: Belata ọrịa
  5. Mme omumu omumu: Na-emetụta agụmakwụkwọ na mmepe nwa ebu n'afọ
  6. Mmetụta nke dermatical: Kpọtụrụ nwere ike ibute chloracne na nsogbu anụ ahụ ndị ọzọ

pcb Health Effects

no pcb

 

4.analytical usoro maka nchọpụta PCB na mmanụ transformer

Usoro nyocha nyocha nke oge a maka nchọpụta PCB na mmanụ transformer gụnyere:

  1. Chromatography (GC):
    • Oke - (hrgc)
    • GC- OBOTROMTERRY (GC - ms)
  2. Immunoates:
    • Enzyme - chinchicond immunosorbent (Elisa)
  3. Usoro nlegharị anya:
    • Obere ihe X- feat fluorecence (xrf)
    • Immụaka Immuniasy
  4. Ụzọ ndị ọzọ:
    • Ọkpụkpụ a na-emeghe
    • Oke-} Plancom provatography (hplc)

Usoro nyocha nke na-esochi ntuziaka IEC ma ọ bụ usoro nke National EPA dị ka usoro EPA 8082.

 

5.PCB mmanye na ọkwa dị ugbu a

Dịka ihe ọghọm PCB ghọtara, usoro zuru ụwa ọnụ - bido na 1970s-1980s:

  1. United States: A machibidoro PCB machibidoro n'okpuru TSCA na 1979
  2. European Union: Usoro PCB na-eme nke ọma- si na 1985
  3. Chaina: Depụtara PCBs n'etiti pops 12 nke mbụ na-achịkwa n'okpuru mgbakọ Stockholm na 2000
  4. Uwa: Agụnyere na narị ndị mbụ na mbụ n'okpuru mgbakọ 2001 Stockholm

 

Ndị ntụgharị nke oge a enweghị PCBB, na-eji usoro ọzọ dị nchebe kama. Agbanyeghị, akụrụngwa Legacy nwere ike ịnwe nsị PCB chọrọ njikwa pụrụ iche.

oil immersed transformer

transformer oil

 

6pcb usoro na usoro

Teknụzụ iwepụ PCB

  1. Ụzọ anụ ahụ:
    • Addorption (carbon, resin)
    • Didihu
    • Igwefoto membrane
  2. Chemicalzọ kemịkal:
    • Ntọala-} na-ahụta akara (BCD)
    • Usoro RedOX
    • Mgbapụta Mgbapụta
    • Nkume nke ihu igwe
  3. Ngozọ ndu:
    • Microbil mebiri emebi
    • Phytoremedia
  4. Ọgwụ Ọkụ:
    • High-temperature incineration (>1200 dị na ngalaba pụrụ iche)
    • Plasma Arc

 

7.Regrotory chọrọ

Nchịkwa PCB na-esochi ihe ndị mba ọzọ chọrọ:

  • Nhazi site na akụrụngwa ikikere naanị
  • {0 {0} Ím} na nsuso
  • Amachibidoro nke mkpofu ego ma ọ bụ ịbelata
  • Nchọpụta ọgwụgwọ ga-ezute ụkpụrụ nchekwa
  • Ihe owuwu ga-eme ka mmetọ mmetọ

mineral oil

8ala nhọrọ nhọrọ maka PCB na-agbanwe mmanụ mmanụ

 

Nchịkwa ọpụpụ ntụgharị nke oge a agbanweela na mpaghara ndị ọzọ kachasị mma:

Inweta mmanụ:

  • A nụchara anụcha
  • Nke a na-eme
  • Akwụ ụgwọ- ur u

Estantlọ oriri:

  • Isi ihe dị elu
  • Nke a na-eme
  • Ezigbo nkwụsi ike

Estars eke:

  • Mmanụ oriri - (rapeseed, soybean)
  • Agradad zuru oke
  • Isi ihe ọkụ dị elu
  • Ọkpụkpụ ngwụcha

Silicone mmiri:

  • Roomy
  • Na-akwụsi ike
  • Oke oke

Mmiri fluorinated:

  • Oke nkwụsi ike
  • Na-abụghị - flammable
  • Ọnụ ego dị elu

Akọrọ - pịnye transformers:

Wepụ Deelrics

Wepu ihe ọghọm mmanụ

Kwesịrị ekwesị maka gburugburu ndị nwere mmetụta

Ọ bụ ezie na usoro ndị a nwere ike ịnwe ụfọdụ ọrụ azụmaahịa -} forps tụgharị na PCB, ha na-anọchite anya ụkpụrụ ụlọ ọrụ mgbe ha na-atụle ihe ndị metụtara ahụike gburugburu ebe obibi. Usoro mgbanwe mgbanwe ọgbara ọhụrụ na-akwụkwara ụgwọ site na ngwa ngwa na-eme ka mma na arụmọrụ kachasị mma na-ebelata ịdabere na akụrụngwa mmiri.

Mmechi

Akụkọ ihe mere eme nke PCBS na ndị na-agbanwe agbanwe na-egosi mmalite kemịkalụ nke kemịkalụ nke kemịkalụ. Site na iji mbụ ahụ dị ka "kemịkalụ kemịkal" maka mmachibido iwu zuru ụwa ọnụ, nke a na-eme ka ihe dị mkpa iji dozie arụmọrụ na teknụzụ teknụzụ. Ngalaba ikike emepewo ọtụtụ ihe nchekwa PCB na nke dị irè ka ị na-ewusi njikwa nke PCB akụrụngwa. Usoro mgbasa ozi dielectocric ga-aga n'ihu na-enwe mmetụta dị ukwuu, nchekwa na nkwado gburugburu ebe obibi dị ka iwu na teknụzụ na-eme.

PCBs in transformers

Zipu ozi