Chiyero chekushandisa uye tekinoroji zvinodiwa zvemagetsi chiteshi mavharuvhu (IV)

Chiyero chekushandisa uye tekinoroji zvinodiwa zvemagetsi chiteshi mavharuvhu (IV)

Kushandiswa kwevharuvhu yemagetsi, kudzikisa simba rekushanda kwevashandi uye zvinodiwa munzvimbo yakashata yekushanda, vharafu yemagetsi ine mota, giya bhokisi uye muviri, kazhinji mubasa rinogara richiitwa nekuda kwezvinhu zvakaita sekudengenyeka, tembiricha, kuvhara kuchembera kazhinji mafuta akasiyana siyana. dambudziko rekudonha, giya bhokisi kuvuza kwakakomba kusvibiswa kwezvakatipoteredza kwete chete kune dzimwe njodzi dzinogona kuitika. Zvidzidzo zvetsaona yekuchengetedza zvakakonzerwa ne "kumhanya, kumhanya, kudonha uye kudonha" kwemidziyo inogara ichitariswa pabasa rekugadzirisa midziyo. Iyo giya bhokisi rinodonha mafuta, nekuda kwechimiro chemidziyo, kushandiswa kwenzvimbo, kuenderera mberi basa uye mamwe mamiriro, mune yechinyakare nekutsiviwa kwezvikamu, nekutsiviwa kwechisimbiso matanho.
Zvinokonzera uye ongororo yekudonha kwemafuta mumagetsi valve giya bhokisi
Kushandiswa kwevharuvhu yemagetsi, kudzikisa simba rekushanda kwevashandi uye zvinodiwa munzvimbo yakashata yekushanda, vharafu yemagetsi ine mota, giya bhokisi uye muviri, kazhinji mubasa rinogara richiitwa nekuda kwezvinhu zvakaita sekudengenyeka, tembiricha, kuvhara kuchembera kazhinji mafuta akasiyana siyana. dambudziko rekudonha, giya bhokisi kuvuza kwakakomba kusvibiswa kwezvakatipoteredza kwete chete kune dzimwe njodzi dzinogona kuitika. Zvidzidzo zvetsaona yekuchengetedza zvakakonzerwa ne "kumhanya, kumhanya, kudonha uye kudonha" kwemidziyo inogara ichitariswa pabasa rekugadzirisa midziyo. Nekuda kwekudzivirirwa kwechimiro chemidziyo, nharaunda yekushanda uye kuenderera kwemamiriro ekushanda, kubuda kwemafuta kwebhokisi regiya kwakaoma kukurumidza uye kushanda mumhinduro dzechinyakare dzekutsiva zvikamu uye kuisa chisimbiso.
Iyo yakazara yakaiswa simba yeHuaneng Power Plant ndeye 2060MW, uye mamiriro ekuwedzera e2 × 1000MW zvikamu zvakachengeterwa chikamu chechitatu. Iyo 2 × 350MW chikamu chechikamu chekutanga chepurojekiti chikamu chinotengeswa kunze chakagadzirwa zvakabatana neChina nenyika dzekunze. Iyo huru yemidziyo yakasarudzwa yakakwira, kurongeka kwakabatana, iyo unit ine hupfumi hwepamusoro, uye basa rekudzivirira rakakwana. Icho chirimwa chemazuva ano chemagetsi chekupisa chine dhigirii yepamusoro ye automation muChina. Chikamu chechipiri chepurojekiti ndeye 2 × 680MW emudzimba supercritical-anopisa marasha mayuniti, panguva imwe chete yekuvakwa kwemvura yegungwa flue gasi desulfurization mudziyo.
Munda application kesi yeCarbon nanopolymer zvinhu mukurapa kuvuza kwegiya casing kubva kuSoley Indasitiri
Iyo onsite operation maitiro ndeokuti:
1, chenesa nzvimbo dzinobuda oiri, puruzira kutenderedza nzvimbo dzinobuda, kuitira kuti iratidze iyo simbi yepakutanga ruvara, mabhaudhi ari zvakare kurapwa kwepamusoro;
2, kuchenesa, kurapa kwepamusoro zvinodiwa kuchena, kuoma, kusimba, kushata;
3. Blend SD2240 material kuti uname zvikamu zvinobuda muchikamu chidiki kusvika pasisina kuvuza;
4. Mushure mekunge pamusoro pezvinhu zvapora, zvinhu zvakafukidzwa ne SD7111C zvakare. Nyaya yacho inorapwa uye inogadziriswa.
Chiyero chekushandisa uye tekinoroji zvinodiwa zvemagetsi chiteshi chevhavha (iv) Iyo yakanyanya kupisa tembiricha yezvikamu zvinotakura zvegoko hazvitarise kutenderera kunobvumidzwa kwekushisa kwebhailer panguva yekushanda kwakajairika, uye kukosha kwekutsauka kuchaenderana nezvinodiwa zveSDGJ6. -1990. Attention inofanira kubhadharwa kune graphitization yesimbi zvinhu pasi pemamiriro anotevera: Chromium-aluminium simbi (kusvika 0.6%) inoshandiswa kwenguva yakareba pamusoro pe525 ℃. Muviri wevharuvhu uye pombi yekubatanidza weld ndeye munda weld, iyo yekupedzisira groove inofanogadziriswa nedhipatimendi rekugadzira mavharuvhu. Iyo butt welding nzira yevhavha yemuviri chiteshi inopera inofanira kunge iri ruoko arc welding, hydrogen arc welding pamwe neruoko arc welding kana dzimwe nzira dzewelding dzakakwaniriswa nemaitiro ekuongorora.
Kubatanidza: Chikumbiro chekushandisa uye tekinoroji zvinodiwa zvemagetsi chiteshi mavharuvhu (III)
Appendikisi c
(Normative Appendikisi)
Maximum sevhisi tembiricha yegoko rinotakura zvinhu
C.1 Pakusarudza zvinhu zvekutakura zvikamu zvegoko, tembiricha yepamusoro yebasa haifanire kudarika zvinopihwa muTebhu C.1.
Tafura C.1 Maximum sevhisi tembiricha yegoko rinotakura zvinhu
C.2 Iyo yakanyanya kupisa tembiricha yezvikamu zvinotakura zvegoko hazvifungidzire kutendeseka kwekushisa kwakatenderwa panguva yekushanda kwakajairika kwebhailer, uye kukosha kwekutsauka kunoenderana nezvinodiwa zveSDGJ6-1990.
C.3 Inogoneka graphitization yesimbi zvinhu zvinofanirwa kucherechedzwa mune zvinotevera zviitiko:
A) Carbon simbi inoshandiswa kwenguva yakareba pamusoro pe425 ℃.
B) Carbon aruminiyamu simbi inoshandiswa kwenguva yakareba panenge 470 ℃.
C) Chromium-aluminium simbi (ine isingasviki 0.6%) inoshandiswa kwenguva yakareba panenge 525 ℃.
C.4 Kuchenjerera kunofanira kubhadharwa kune inobvira peroxidation (oxidation yeganda) mune zvinotevera zviitiko:
A) 1Cr-0.5Mo simbi, 1.25Cr-0.5Mo simbi, 2.25Cr-1Mo simbi uye 3Cr-1Mo simbi pamusoro 565℃;
B) 5Cr-0.5Mo simbi pamusoro 595 ℃.
Appendikisi D
(Apendikisi Inozivisa)
Hardfacing zvinhu uye kuoma kwevharuvhu sealing surface
Tafura D.1 inopa nhungamiro yevagadziri pakusarudza kwezvishandiso zvepamusoro uye kuomarara kwepamusoro kwenzvimbo yekuvharisa mavharuvhu.
Tafura D.1 Hardfacing zvinhu uye hardfacing raibhurari yevharuvhu sealing pamusoro
Appendikisi E
(Apendikisi Inozivisa)
Butt weld groove rudzi rwevharuvhu muviri chiteshi kupera
E.1 Butt weld groove rudzi rwemavharuvhu akasiyana-siyana ane butt pombi mudhuri ukobvu δ20mm inoratidzwa paMufananidzo E.1
E.2 butt weld groove yemavharuvhu ane pombi wall ukobvu hwe20mm ≤δ≤40mm inoratidzwa mumufananidzo e. 2
E.3 Butt weld groove rudzi rwemavharuvhu akasiyana ane butt pombi mudhuri ukobvu δ40mm inoratidzwa paMufananidzo E.3
E.4 Zviyero zveD1, D2 uye D3 muMufananidzo E1, Mufananidzo E.2 uye Mufananidzo E.3 hazvina kupiwa, izvo zvinotarirwa nemufananidzo wekugadzira. D1 yakaenzana nehukuru hwekutanga hwepombi yemukati dhayamita, uye D: inogona kuverengerwa kubva kune inotevera fomula:
Type:
Kunze kwedhayamita yeDW-1 pombi:
A – Hukoshi hwakawedzerwa huchatemwa nemugadziri maererano neTafura E.1.
Tafura E.1 Yakawedzerwa kukosha kwebutt weld groove dimension D2
E.5 Kana iyo yekubatanidza weld pakati pemuviri wevharuvhu nepombi iine weld yemunda, iyo yekupedzisira groove ichafanogadziriswa nedhipatimendi rekugadzira mavharuvhu.
E.6 Welding nzira yebutt weld yevharuvhu yemuviri nzira yekupedzisira inofanira kutora ruoko arc welding, hydrogen arc welding pamwe neruoko arc welding kana imwe nzira yewelding inokwaniriswa nekuongororwa kwemaitiro.
Cherechedzo 1: Kana Lo≥1.5δ, Iyo Engi inogona kukwizwa paLo=1.5δ sezvakaratidzwa mutsetse we45°.
Cherechedzo chechipiri: Iyo yakakandwa simbi yevharuvhu yemuviri ine dhayamita yezita DN≥150mm ichave L1=40mm yekuongorora radiographic, L1=12mm kune dzimwe nyaya.
FIG. E.1 V-shaped groove type
Cherechedzo 1: Kana Lo≥1.5δ, Iyo Engi inogona kukwizwa paLo=1.5δ sezvakaratidzwa mutsetse we45°.
Cherechedzo chechipiri: Iyo yakakandwa simbi yevharuvhu yemuviri ine dhayamita yezita DN≥150mm ichave L1=40mm yekuongorora radiographic, L1=12mm kune dzimwe nyaya.
FIG. E.2 U-shaped groove type
Mufananidzo E.3 U(1) groove mhando
Appendikisi F
(Apendikisi Inozivisa)
Metal nameplate
F.1 Tafura F.1 inoratidza zviri mukati mesimbi nameplates pamavharuvhu eglobhu, mavharuvhu echeki, mavharuvhu egedhi, mavharuvhu anotsikitsira uye mavharuvhu eplug.
Tafura F.1 Metal nameplates eglobe mavharuvhu, cheki mavharuvhu, gedhi mavharuvhu, throttle mavharuvhu, plug mavharuvhu, etc.
F.2 Tafura F.2 inoratidza zviri mukati mesimbi nameplate yemutongi
Tafura F.2 Metal content of regulator
F.3 Tafura F.3 inoratidza zviri mukati mevharuvhu yekuchengetedza simbi nameplate
Tafura F.3 Metal nameplate yevharuvhu yekuchengetedza
F.4 Tafura F.4 inoratidza zviri mukati mesimbi nameplate yevhavha inoderedza kumanikidza
Tafura F.4 Metal nameplate yevhavha inoderedza kudzvinyirira
F.5 Tafura F.5 inoratidza simbi nameplate yetembiricha uye pressure yekudzikisa vharafu.
Tafura F.5 Metal nameplate ye tembiricha uye kumanikidza kuderedza vharafu