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Gaasi ni awọn iyipada

Jun 17, 2025

Fi ifiranṣẹ kan silẹ

 

Awọn akoonu
  1. Gaasi ni awọn iyipada
  2. 1. Ifihan
  3. 2.Constraction
  4. 3. Ilana iṣẹ
  5. 4. Awọn anfani ati alailanfani
  6. 5
    1. 5.1 Awọn iṣẹ ẹbi ati awọn abuda gaasi
    2. 5.2 awọn ọna ayẹwo aisan
    3. 5.3 Awọn ijinlẹ ọran
    4. Awọn iṣeduro Itọju 5.4
Gaasi ni awọn iyipada
 

gas relay

1. Ifihan

 

AwọnRiasifu gaasi(tun mọ bi aRochholz di) jẹ ẹrọ aabo to ṣe pataki ni epo-}}}}}}}}}} fa awọn ẹya ti o ni awọn aṣiṣe nipasẹ awọn ategun ibojuwo ti ipilẹṣẹ inu oluyipada naa. Nigbati awọn ikuna inu {Or2}} c suching,, amin piro, tabi waye, hydrogen, ibinu, ibinu, ambẹli. Awọn ọna gaasi tun ṣe awari boya ikojọpọ ti awọn ategun wọnyi tabi awọn ipa-ọna ṣiṣan ina lojiji, nfa awọn itaniji tabi awọn ifihan agbara irin ajo lati yago fun awọn ikuna catastrophic.

2.Constraction

1.Light 2.Ṣoju 3.Cup (leefofo loju omi) Ojuami Oju-iwe 6.Awọn 6.madent 7.Baffle 1.Dection Spre 11.Orisun omi 12.Labẹ bokele oke 13.Ṣiṣe ọpá 14.Ibere ​​15.Duro dabaru

gas relay diagram

 

3. Ilana iṣẹ

Apẹrẹ gaasi ni a fi sori ẹrọ ni paipu ti n ṣalaye ojò iyipada ati olutọju naa. O ṣiṣẹ da lori awọn imọ meji:

(1) imudaniloju ẹbi kekere (itaniji gaasi ikojọpọ)

  • O lọra-}}}}} Koosi awọn aṣiṣe (fun apẹẹrẹ, agbegbe ti agbegbe ti o jinde, idasilẹ awọn ategun ti o jinde ati ikojọpọ ninu iyẹwu oke ti tun.
  • Nigbati awọn iwọn gaasi ba de opin tito tẹlẹ (nigbagbogbo250-300 milimita), awọn fifa omi leefofo, ti mu olubasọrọ itaniji ṣiṣẹ ("gaasi ina").

(2) Wiwo pataki pataki (irin ajo ṣiṣan epo)

  • Awọn aṣiṣe awọn iṣoro (fun apẹẹrẹ, awọn iyika kukuru, ti n n ṣiṣẹ gígùn epo, ṣe ọṣọ epo epo ati rudurudu ti titẹ.
  • Abajade epo ti o ni fifa ina si inu rẹ ti n ṣe idiyele olubasọrọ irin-ajo lati ge asopọ oluyipadapada laarin awọn milliseconds.

Buchholz relay

transformer gas relay

 

4. Awọn anfani ati alailanfani

Awọn anfani

  • Ijinlẹ giga: Ṣawari awọn aṣiṣe incipient (fun apẹẹrẹ, ti oribo, ṣaaju ki wọn to pọ si.
  • Idahun iyara: Irin-ajo "ti o wuwo" irin-ajo ṣiṣẹ ni Milliscands, o dinku ibaje.
  • Ko si agbara ita: Apẹrẹ ẹrọ ṣe idaniloju igbẹkẹle paapaa lakoko awọn apanirun agbara.
  • Aisan aisan: Onínọmbà gaasi (fun apẹẹrẹ,DGA {{0} o} Ti tulẹ gaasi onínọmbà) ṣe idanimọ awọn oriṣi aiṣedede (overheasing, isocing, bbl).

Alailanfani

  • Ororo - Awọn Ayirapada ti o ni igbanisia: Kii ṣe wulo lati gbẹ - Tẹ awọn Ayirapada.
  • Imọye ayika: Igoja tabi fifi sori ẹrọ ti ko ṣee le le fa awọn irin-ajo eke.
  • Itọju -}}}} ►.

5

5.1 Awọn iṣẹ ẹbi ati awọn abuda gaasi

gas relay in transformer

5.1.1 Iyọkuro apakan

  • Awọn abuda aiṣedeede: Fojusi aaye ipo ina ti agbegbe nfa awọn iyọkuro ti ko lagbara ninu idabobo
  • Ibusọ gaasi:

Gaasi akọkọ:Hydrogen (H₂, 60-70%)

Gaas Gaasi:Metane (ch₄)

Atọka bọtini: Pupo kekereAcetylene (c₂h₂,<5ppm)

  • Ise igbese: Ojo melo mu ki o waitaniji gaasi ina
  • Ipele eewu: Iwọntunwọnsi (Le le pọ si ti ko ba ṣe deede

 

5.1.2 Awọn aṣiṣe igbona

Kekere - Idapọmọra otutu overheating (iwọn 150-300)

  • Awọn okunfa Awọn ifarahan: Awọn ọran ibi apejọ, awọn isopọ ti ko dara
  • Ibusọ gaasi:

Gaba nipasẹMetane (ch₄)

IfarasiEthylene (c₂h₄)

Lọ silẹHydrogen (H₂)

 

High-Temperature Overheating (>700 ìyí)

  • Awọn okunfa Awọn ifarahan: Ndinki overheating, awọn dina epo ti o ni idiwọ
  • Ibusọ gaasi:

To lapẹrẹEthylene (c₂h₄)

Pọ siEthane (c₂h₆)

Wa kakuAcetylene (c₂h₂)

  • Ise igbesePipairin ajo gaasi ti o wuwo

 

5.1.3 amin (giga {{1} Ifiranṣẹ agbara)

  • Awọn abuda aiṣedeede: Yika awọn iyika kukuru, Fọwọ ba Awọn ikuna Ehing
  • Ibusọ gaasi:

GigaAcetylene (C₂H₂, typically >50ppm)

GbegaHydrogen (H₂)

Ti ṣee ṣe awọn ohun elo carbon ni epo

  • Ise igbese: Nigbagbogbo n fa irin ajo gaasi ti o wuwo
  • Ipele eewu: Lotilẹjẹ (nbeere tiipa lẹsẹkẹsẹ)

 

5.1.4 Ọra Ọra

  • Awọn abuda aiṣedeede: Akoonu omi pupọ ninu epo
  • Ibusọ gaasi:

JùHydrogen (H₂, >80%)

ỌmọMetane (ch₄)

  • Ise igbese: LooreAwọn itaniji gaasi ina
  • Iwadii aisan: Nilo ìmúdájú nipasẹIdanwo epo epo

 

5.2 awọn ọna ayẹwo aisan

Buchholz relay in transformers

5.2.1 Awọn ọna Rotio gaasi (ipin Rogers)

Awọn ipin gaasi bọtini bọtini fun idanimọ aṣiṣe:

Ipin

Sakani

Oriṣi ẹbi

Ch₄ / h₂

<0.1

Ifiweranṣẹ apakan

C₂H₄/C₂H₆

>3

Ga - Idapọmọra otutu overheating

C₂H₂/C₂H₄

>0.5

Aṣiṣe Arcing

5.22 Tririgle (iEC 60599)

Ti ilọsiwaju mẹta- Yi ọna itunyẹwo ipin fun Centi Idari Idapin.

5.2.3 gaasi iranwo ijinle

Ifarabalẹ akiyesi: Lapapọ hydrocarbobon oṣuwọn iran>0,5 milimita / h

Ikilọ Ikilọ: Lapapọ hydrocarbobon oṣuwọn iran>1 milimi / h

 

5.3 Awọn ijinlẹ ọran

Winding Short Circuit

Ọran 1: aiṣedeede Fọwọ ba Awọn olubasọrọ Compant

  • Awọn aami aisan: LooreAwọn itaniji gaasi ina
  • Pupa gaasi:

Ch₄: 45%

           C₂H₄: 30%

           C₂H₂: <1ppm

  • Iwadii aisan: Alabọde {kú 0}} Idapọmọra otutu overheating (200-400 ìyí)
  • Iṣe: Ayewo ati mimọ tẹ awọn olubasọrọ Compant

 

Irú 2: Inc - Yiyi yi yika Circuit

  • Awọn aami aisan: Irin ajo gaasi ti o wuwo
  • Pupa gaasi:

           H₂: 55%

           C₂H₂: 35%

Awọn ohun elo carbon ni epo

  • Iwadii aisan: Ga -}} Agbara iwa-ikọlu agbara
  • Iṣe: Ṣe ayẹwo afẹfẹ ti inu

 

Dissolved Gas Analysis test

 

Awọn iṣeduro Itọju 5.4

  1. Iṣapẹẹrẹ gaasi deede: ṢeTutika gaasi (DGA)o kere ju gbogboOṣu mẹfa.
  2. Wiwo iṣẹlẹ: Gba awọn didasilẹ awọn idaniloju pẹlu awọn paramita itanna ti o baamu.
  3. Labẹ Damibtion: Ni ọdun lodoṣe leefole lile ati awọn ẹrọ ina.
  4. Abojuto Afikun: Ṣepọ pẹluAwọn eto ibojuwo ori ayelujaraFun imudara si igbẹkẹle.
Tẹlẹ:Ko si Alaye

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