Ka nui o ka noi a me nā koi ʻenehana o nā pahu mana mana (IV)
ʻO ka hoʻohana ʻana i ka valve uila, ʻo ia ka hoʻohaʻahaʻa ʻana i ka ikaika o nā limahana a pono i ka hana maikaʻi ʻole, ʻo ka valve uila ka mīkini, pahu pahu a me ke kino, maʻamau i ka hana maʻamau ma muli o nā kumu e like me ka vibration, ka wela, ka hoʻopaʻa ʻana i ka wā kahiko i nā ʻano ʻaila. pilikia leakage, pahu pahu pahu leakage ko'iko'i pollution kaiapuni 'a'ole wale kekahi mau pilikia palekana. ʻO nā haʻawina ulia pōpilikia i hoʻokumu ʻia e ka "holo, ka holo ʻana, ke kahe ʻana a me ka leaking" o nā mea hana e nānā mau ʻia i ka hana hoʻokele lako. ʻO ka ʻaila leakage pahu pahu pahu, ma muli o ke ʻano o nā mea hana, ka hoʻohana ʻana i ke kaiapuni, ka hana mau a me nā kūlana ʻē aʻe, ma ke ʻano kuʻuna me ka hoʻololi ʻana o nā ʻāpana, me ka hoʻololi ʻana i nā ana hoʻopaʻa.
Nā kumu a me ka nānā ʻana o ka leaka ʻaila i loko o ka pahu pahu pahu uila
ʻO ka hoʻohana ʻana i ka valve uila, ʻo ia ka hoʻohaʻahaʻa ʻana i ka ikaika o nā limahana a pono i ka hana maikaʻi ʻole, ʻo ka valve uila ka mīkini, pahu pahu a me ke kino, maʻamau i ka hana maʻamau ma muli o nā kumu e like me ka vibration, ka wela, ka hoʻopaʻa ʻana i ka wā kahiko i nā ʻano ʻaila. pilikia leakage, pahu pahu leakage ko'iko'i pollution kaiapuni 'a'ole wale kekahi mau pilikia palekana. ʻO nā haʻawina ulia pōpilikia i hoʻokumu ʻia e ka "holo, ka holo ʻana, ke kahe ʻana a me ka leaking" o nā mea hana e nānā mau ʻia i ka hana hoʻokele lako. Ma muli o ka palena o ka hoʻolālā mea hana, ka ʻenehana hana a me nā kūlana hana hoʻomau, paʻakikī ka leakage aila o ka pahu pahu e wikiwiki a maikaʻi hoʻi i nā hopena kuʻuna o ka hoʻololi ʻana i nā ʻāpana a me ka sila.
ʻO 2060MW ka nui o ka mana i hoʻokomo ʻia o Huaneng Power Plant, a mālama ʻia nā kūlana hoʻonui o 2 × 1000MW no ke kolu o ka hana. ʻO ka ʻāpana 2 × 350MW o ka papahana hana mua ka ʻāpana lawe ʻia i hoʻolālā ʻia e Kina a me nā ʻāina ʻē. ʻO ka koho nui o nā mea hana i holomua, ua paʻa ka hoʻonohonoho ʻana, ʻoi aku ka waiwai kiʻekiʻe o ka ʻāpana, a ua kūpono ka hana pale. He hale mana wela o kēia wā me kahi kiʻekiʻe o ka automation ma Kina. ʻO ka papa ʻelua o ka papahana he 2 × 680MW home supercritical coal-fired units, ka hana like ʻana o ka wai kai flue gas desulfurization device.
Ka hihia noi kahua o nā mea nanopolymer Carbon i ka mālama ʻana i ka leakage o nā pahu pahu mai Soley Industry
ʻO ke kaʻina hana ma ka pūnaewele penei:
1, hoʻomaʻemaʻe i nā ʻāpana leakage aila, polish a puni nā ʻāpana leakage, i mea e hōʻike ai i ke kala kumu metala, ʻo nā ʻāpana bolt ka mālama ʻana i ka ʻili;
2, hoʻomaʻemaʻe, hoʻomaʻemaʻe, maloʻo, paʻa, ʻōpala;
3. E hoʻohui i nā mea SD2240 e hoʻopaʻa i nā ʻāpana liʻiliʻi ma kahi liʻiliʻi a ʻaʻohe leakage;
4. Ma hope o ka ho'ōlaʻiaʻana o kaʻili o ka mea, ua uhi houʻia ka mea me SD7111C. Ho'ōla a hoʻoponopono ʻia ka mea.
ʻO ka laulā noi a me nā koi ʻenehana o ka valve station power (iv) ʻAʻole noʻonoʻo ka mahana lawelawe kiʻekiʻe loa o nā ʻāpana lawe o ka pūpū i ka ʻae ʻia ʻana o ka wela wela o ka paila i ka wā o ka hana maʻamau, a ʻo ka waiwai deviation e like me nā ʻōlelo o SDGJ6 -1990. Pono e noʻonoʻo i ka graphitization o nā mea metala ma lalo o kēia mau kūlana: Chromium-aluminum steels (a hiki i 0.6%) hoʻohana ʻia no ka manawa lōʻihi ma luna o 525 ℃. ʻO ke kino valve a me ka paipu pili weld he kahua weld, ua hana mua ʻia kona awāwa hope e ka ʻoihana hana valve. ʻO ke ʻano o ka hoʻoheheʻe ʻana i ke kīpē o ka hopena o ke kino valve he wili lima lima, hydrogen arc welding me ka wili lima lima a i ʻole nā ʻano hana kuʻilima ʻē aʻe i kūpono i ke kaʻina loiloi.
Hoʻohui: Ka laulā noiʻi a me nā koi ʻenehana o nā pahu mana mana (III)
Pākuʻi c
(Hoʻohui Kūlana)
ʻO ka wela lawelawe kiʻekiʻe o ka mea lawe pūpū
C.1 I ke koho 'ana i nā mea no ka lawe 'ana i nā 'āpana o ka pūpū, 'a'ole e 'oi aku ka wela o ka lawelawe 'ana ma mua o nā mea i ho'olako 'ia ma ka Papa C.1.
Papa C.1 ʻO ka wela lawelawe kiʻekiʻe loa o nā mea lawe pūpū
C.2 ʻAʻole noʻonoʻo ka mahana hana kiʻekiʻe loa o nā ʻāpana lawe o ka pūpū i ka ʻae ʻana o ka wela i ka wā o ka hana maʻamau o ka paila, a ʻo ke kumukūʻai deviation e like me nā ʻōlelo o SDGJ6-1990.
C.3 Pono e ʻike ʻia ka graphitization o nā mea metala ma kēia mau hihia:
A) Hoʻohana ʻia ke kila kalapona no ka manawa lōʻihi ma luna o 425 ℃.
B) Hoʻohana ʻia ke kila alumini kalapona no ka manawa lōʻihi ma kahi o 470 ℃.
C) Hoʻohana ʻia ke kila Chromium-aluminum (ʻoi aku ka liʻiliʻi ma mua o 0.6%) no ka manawa lōʻihi ma kahi o 525 ℃.
C.4 Pono e noʻonoʻo ʻia i ka peroxidation hiki ke loaʻa (oxidation o ka ʻili) i kēia mau hihia:
A) 1Cr-0.5Mo kila, 1.25Cr-0.5Mo kila, 2.25Cr-1Mo kila a me 3Cr-1Mo kila ma luna o 565 ℃;
B) 5Cr-0.5Mo kila ma luna o 595 ℃.
Pākuʻi D
(Hoʻohui ʻIke)
ʻO nā mea paʻakikī a me ka paʻakikī o ka ili hoʻopaʻa valve
Hāʻawi ka Papa D.1 i nā alakaʻi no nā mea hoʻolālā e pili ana i ke koho ʻana i nā mea i hoʻoheheʻe ʻia a me ka paʻakikī o ka ʻili no nā ʻili e hoʻopaʻa ai i ka valve.
Papa D.1 Mea pa'akikī a me ka hale waihona puke pa'a no ka ili o ka pahu kiwi
Pākuʻi E
(Hoʻohui ʻIke)
ʻO ke ʻano o ka ʻauwaha wiliwili kīwī o ka pau ʻana o ke kahawai kino
E.1 ʻO ke ʻano o nā ʻano kiwi like ʻole me ka mānoanoa o ka pā paipu kīwī δ20mm i hōʻike ʻia ma ke Kiʻi E.1
E.2 butt weld groove o kiwi me ka paipu paia mānoanoa o 20mm ≤δ≤40mm ua hōʻike 'ia ma ka huahelu e. 2
E.3 ʻO ke ʻano o nā ʻano kiwi like ʻole me ka mānoanoa o ka paia o ka paipu δ40mm ma ke Kiʻi E.3.
E.4 ʻAʻole i hāʻawi ʻia nā ana o D1, D2 a me D3 ma ke Kiʻi E1, E.2 a me E.3, i hoʻoholo ʻia e ke kiʻi hoʻolālā. Ua like ka D1 me ka nui kumu o ke anawaena o ka paipu, a me D: hiki ke heluia mai keia kumu:
ʻAno:
ʻO ke anawaena o waho o ka paipu DW-1:
A - E hoʻoholo ʻia ka waiwai hoʻohui e ka mea hoʻolālā e pili ana i ka Papa E.1.
Pākuʻi E.1 Ua hoʻohui ʻia o ka nui o ka ʻāwī weld weld D2
E.5 I ka hoʻohui ʻia ʻana o ka weld ma waena o ke kino valve a me ka paipu i ke kahua weld, e hoʻomaʻamaʻa mua ʻia ka ʻōpala hopena e ka ʻoihana hana kiwi.
E.6 ʻO ke ʻano o ka wiliwili ʻana o ka weld a i ʻole ka hoʻoheheʻe ʻia ʻana o ke kino valve e hoʻohana i ka wiliwili lima arc, ka wiliwili hydrogen arc me ka wili lima lima a i ʻole ke ʻano kuʻihao ʻē aʻe i kūpono i ka loiloi kaʻina.
Nānā 1: I ka wā Lo≥1.5δ, hiki ke hoʻokaʻawale ʻia ka Angle ma Lo=1.5δ e like me ka mea i hōʻike ʻia ma ka pali 45°.
'Ōlelo Aʻo 2: ʻO ke kino o ka pahu kila kila me ke anawaena inoa DN≥150mm he L1=40mm no ka nānā radiographic, L1=12mm no nā hihia ʻē aʻe.
FIG. E.1 ʻano ʻāwīwī V-like
Nānā 1: I ka wā Lo≥1.5δ, hiki ke hoʻokaʻawale ʻia ka Angle ma Lo=1.5δ e like me ka mea i hōʻike ʻia ma ka pali 45°.
'Ōlelo Aʻo 2: ʻO ke kino o ka pahu kila kila me ke anawaena inoa DN≥150mm he L1=40mm no ka nānā radiographic, L1=12mm no nā hihia ʻē aʻe.
FIG. E.2 U-ʻano ʻāwīwī ʻano
Kiʻi E.3 U(1) ʻano ʻāwīwī
Pākuʻi F
(Hoʻohui ʻIke)
Papa inoa metala
Hōʻike ka Papa F.1 F.1 i nā mea i loko o nā papa inoa metala ma nā kiwi honua, nā kiwi hoʻopaʻa, nā ʻīpuka puka, nā puʻupuʻu throttle a me nā kiwi hoʻopili.
Pākaukau F.1 Nā papa inoa metala no nā kiwi honua, nā kiwi hoʻopaʻa, nā ʻīpuka ʻīpuka, nā kiwi puʻupuʻu, nā puʻupuʻu plug, etc.
Hōʻike ka papa F.2 i ka ʻike o ka papa inoa metala o ka mea hoʻoponopono
Papa F.2 mea metala o ka mea hooponopono
F.3 Papa F.3 hōʻike i ka maʻiʻo o ka palekana valve metala nameplate
Papa F.3 Pepa inoa metala o ka valve palekana
F.4 Papa F.4 hōʻike i ka maʻiʻo o ka metala nameplate o ka puʻe ho'ēmi pahu
Papa F.4 Metala nameplate o ka pahu hoemi hoemi
Hōʻike ka papa F.5 i ka papa inoa metala o ka wela a me ke kaomi hoʻohaʻahaʻa pahu.
Papa F.5 Metala nameplate o ka wela a me ka puʻe ho'ēmi valve
Ka manawa hoʻouna: Iulai-26-2022
