Indlela yokuvelisa
1. Ubushushu betyhubhu yebhoyili jikelele bungaphantsi kwe-450 ℃, umbhobho wasekhaya wenziwa ikakhulu kwiNombolo ye-10, akukho.20 carbon bonded steel umbhobho eshushu esongisiweyo okanye umbhobho obandayo.
2. Iityhubhu zebhoyila ezinoxinzelelo oluphezulu zihlala zisetyenziswa phantsi kobushushu obuphezulu kunye neemeko zoxinzelelo oluphezulu.Ngaphantsi kwesenzo segesi ephezulu yokushisa kunye nomphunga wamanzi, i-oxidation kunye ne-corrosion iya kwenzeka.Umbhobho wensimbi ufuneka ukuba ube namandla ahlala ixesha elide, ukuxhatshazwa kwe-corrosion ephezulu ye-oxidation kunye nokuzinza okulungileyo kwe-microstructure.
3. Ityhubhu yebhoyila yoxinzelelo oluphezulu luhlobo lwetyhubhu yebhoyila, yodidi lwetyhubhu yentsimbi engenamthungo.Indlela yokuvelisa iyafana netyhubhu engenamthungo yoxinzelelo oluphezulu lwebhoyila, kodwa kukho iimfuno ezingqongqo kwibakala lentsimbi esetyenziselwa ukwenza ityhubhu yentsimbi.Iityhubhu zebhoyila ezinoxinzelelo oluphezulu zihlala zisetyenziswa phantsi kobushushu obuphezulu kunye neemeko zoxinzelelo oluphezulu.Ityhubhu yebhoyila yoxinzelelo oluphezulu isetyenziselwa ukwenza ityhubhu ye-superheater, ityhubhu yokufudumeza, umbhobho we-conduit, umbhobho ophambili womphunga njalo njalo kuxinzelelo oluphezulu kunye ne-boiler yoxinzelelo oluphezulu.
4. Ngenxa yokuba ityhubhu yebhoyili isebenza phantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu ixesha elide, izinto eziphathekayo ziya kukhwela, iplastiki kunye nokunciphisa ukuqina, ukuguqulwa kombutho wokuqala, ukubola kunye nokunye.Iityhubhu zentsimbi ezisetyenziswa njengezibiyeli ziya kuba:
(1) Ukomelela okwaneleyo;
(2) Umthamo owaneleyo wokuguqula iplastiki;
(3) Ubuncinci ukuthambekela kokuguga kunye ne-thermal brittleness;
(4) Ukumelana ne-oxidation ephezulu, ukuxhathisa uthuthu lwamalahle, ukuxhathisa ubushushu obuphezulu kwi-corrosion yendalo yendalo, umphunga kunye nokusebenza koxinzelelo lwe-corrosion;
(5) Uzinzo oluhle lombutho kunye nokusebenza kakuhle kwenkqubo.
Intsimbi yetyhubhu yebhoyila yoxinzelelo oluphezulu yintsimbi ye-carbon kunye ne-pearlite, i-ferritic kunye ne-austenitic stainless steel resistant heat.Ukuze kuphuculwe ukusebenza kakuhle kwe-thermal yamandla okuvelisa amandla kunye nokunciphisa ukusetyenziswa kwamafutha, ukuphuhliswa komthamo omkhulu, ipharamitha ephezulu (ubushushu obuphezulu, uxinzelelo oluphezulu) iiyunithi zokuvelisa amandla obushushu (ngaphezu kwe-1000MW) zinikwa kuqala kwihlabathi.Uxinzelelo lomphunga lonyuke lwaya kutsho kuma-31.5 ~ 34.3MPa, ubushushu bomphunga obushushu ukuya kuthi ga kwi-595 ~ 650℃, kuphuhliso loxinzelelo oluphezulu loxinzelelo oluphezulu, ngoko ke ityhubhu yebhoyila yoxinzelelo oluphezulu ibeka phambili iimfuno eziphezulu.Umgangatho omtsha wentsimbi waphuhliswa ukuhlangabezana nemfuno yebhoyila yeplanti yamandla eparameter ephezulu.
Indlela yokuvelisa ityhubhu yebhoyila yoxinzelelo oluphezulu,Sebenzisa ulwahlulo
Kwibhoyila yoxinzelelo oluphantsi noluphakathi (uxinzelelo olusebenzayo alukho ngaphezu kwe-5.88mpa, ubushushu obusebenzayo bungaphantsi kwama-450 ℃) umbhobho wokufudumeza umphezulu;Isetyenziselwa ibhoyila yoxinzelelo oluphezulu (uxinzelelo olusebenzayo ngokubanzi ngaphezu kwe-9.8mpa, ubushushu obusebenzayo phakathi kwe-450 ℃ ~ 650 ℃) umbhobho wokufudumeza umphezulu, i-economizer, i-superheater, i-reheater, i-petrochemical industry pipe, njl.
Ngokutsho kolwahlulo lwebhoyila ityhubhu ye-20G yoxinzelelo oluphezulu, ityhubhu yebhoyila 12Cr1MoVG, uphando lwentsimbi 102 ityhubhu yebhoyila yoxinzelelo oluphezulu, 15CrMoG ityhubhu yebhoyila yoxinzelelo oluphezulu, 5310 ityhubhu yebhoyila yoxinzelelo oluphezulu, 3087. ityhubhu yebhoyila yoxinzelelo oluphantsi noluphakathi, ityhubhu yebhoyila yoxinzelelo lwe-40Cr, i-1Cr5Mo ityhubhu yebhoyila yoxinzelelo oluphezulu, 42CrMo ityhubhu yebhoyila yoxinzelelo oluphezulu.
Indlela yokuvelisa ityhubhu yebhoyila yoxinzelelo oluphezulu,Iinkcukacha kunye nomgangatho wenkangeleko
(1) I-GB3087-2008 "I-Seamless Steel pipe ye-Boiler yoxinzelelo oluphantsi kunye noxinzelelo oluphakathi" amalungiselelo.Ukucaciswa kweetyhubhu zentsimbi kwiibhoyila ezahlukeneyo zesakhiwo, ububanzi be-10 ~ 426mm, iindidi ezingama-43 zizonke.Kukho iindidi ezingama-29 zobukhulu bodonga ukusuka kwi-1.5 mm ukuya kwi-26mm.Nangona kunjalo, ububanzi bangaphandle kunye nobukhulu bodonga lombhobho womphunga oshushu kakhulu, umbhobho omkhulu womsi, umbhobho omncinci womsi kunye nombhobho we-arch wezitena osetyenziswa kwibhoyila ye-locomotive ichazwe ngenye indlela.
(2) GB5310-2008 "I-Tube yentsimbi engenamthungo yeBoiler yoxinzelelo oluphezulu" ibhobho eshushu yaqengqeleka ububanzi 22 ~ 530mm, ubukhulu bodonga 20 ~ 70mm.Ukutsalwa okubandayo (okubandayo okuqengqelekayo) ityhubhu ububanzi 10 ~ 108mm, ubukhulu bodonga 2.0 ~ 13.0mm.
(3) GB3087-82 "ityhubhu yentsimbi engenamthungo kwibhoyila ephantsi kunye nephakathi" kunye ne-GB5310-95 "ityhubhu yentsimbi engenamthungo kwibhoyila yoxinzelelo oluphezulu" amalungiselelo.Umgangatho wokubonakala: ukuqhekeka, ukugoqa, ukuqengqeleka, ukukrala, ukuhlukana kunye nemibimbi akuvumelekanga kwindawo yangaphakathi nangaphandle yombhobho wensimbi.Ezi ziphene kufuneka zipheliswe ngokupheleleyo.Ubunzulu bococeko abuyi kudlula ukutenxa okungalunganga kobunzima bodonga lwegama, kwaye ubungakanani bodonga lokwenene kwindawo yokucoca abuyi kuba ngaphantsi kobungqingqwa obuvumelekileyo bodonga.
Ixesha lokuposa: May-23-2022