Kwi-boiler, i-heat exchanger, i-superheater, kunye nezinye izicelo zoxinzelelo oluphezulu olusebenzisa ubushushu obuphezulu, ukukhetha umgangatho ofanelekileyo wombhobho wentsimbi kuchaphazela ngokuthe ngqo ukhuseleko lwezixhobo kunye nobomi benkonzo.I-ASTM A179, A192, A210, kunye ne-A213zezona migangatho zine zebhoyila ezisetyenziswa kakhulu kwihlabathi liphela, kodwa nganye yenzelwe iimeko ezahlukeneyo zenkonzo kunye neemfuno zokusebenza. Eli nqaku libonelela ngohlalutyo oluneenkcukacha oluvelaizinto, iipropati zoomatshini, kunye neemeko ezifanelekileyoukukunceda wenze izigqibo zokuthenga ezisekelwe kulwazi.

I. Ukubekwa kwindawo ephambili kweMigangatho emine

Umgangatho	Igama eliphelele	Uhlobo lwezinto	Isicelo esiPhambili
I-ASTM A179 / ASME SA179	Iityhubhu zentsimbi yekhabhoni engaphantsi engenanto ethambileyo etsalwa ngokubandayo yezixhobo zokutshintsha ubushushu kunye neekhondensi	Intsimbi ekhabhoni ephantsi	Izixhobo zokutshintsha ubushushu, ii-condensers, izixhobo ezifanayo zokudlulisa ubushushu
I-ASTM A192 / ASME SA192	Iityhubhu zeBoiler zeCarbon Steel ezingenamthungo zoxinzelelo oluphezulu	Intsimbi yekhabhoni	Iindonga zamanzi zebhoyila ezinoxinzelelo oluphezulu, izinto ezigcina uqoqosho
I-ASTM A210 / ASME SA210	I-Boiler yentsimbi ye-Medium-Carbon kunye nee-Superheater Tubes ezingenamthungo	Intsimbi ephakathi nekhabhoni	Iinkqubo zebhoyila, ii-superheaters
I-ASTM A213 / ASME SA213	Iityhubhu zeFerritic kunye neAustenitic Alloy-Steel Boiler, iSuperheater kunye neHeat-Exchanger Tubes ezingenamthungo	Intsimbi ye-alloy / intsimbi engatyiwayo	Iibhoyila zesikhululo samandla esinoxinzelelo oluphezulu esishushu kakhulu, iiyunithi ezibalulekileyo kakhulu

II. Uhlalutyo oluneenkcukacha lweMigangatho nganye

1. I-ASTM A179 / ASME SA179–I-Heat Exchanger kunye neeCondenser Tubes

I-ASTM A179izigqubutheloiityhubhu zentsimbi ezitsalwa ngokubandayo ezingaphantsi kwekhabhoniyenzelwe ngokukodwaizixhobo zokutshintsha ubushushu, izixhobo zokondensa, kunye nezixhobo ezifanayo zokudlulisa ubushushu.

Izinto eziphambili: Intsimbi enekhabhoni ephantsi (umxholo wekhabhoni 0.06%–0.18%)

Iipropati eziphambili zoomatshini:

Amandla okuThamba: ≥325 MPa

Amandla okuvelisa: ≥180 MPa

Ukwandiswa: ≥35%

Izicelo eziqhelekileyo:

Izitshintshi zobushushu zegobolondo kunye neetyhubhu

Izikhondesi zomphezulu

Iinkqubo zokufudumeza amanzi okuhambisa amanzi

Izixhobo zokudlulisa ubushushu kwizityalo zepetrochemical neze-refinery

Iingenelo ze-A179: Umxholo ophantsi wekhabhoni ubonelelaiipropati ezintle kakhulu zokugoba kubanda, amandla okuvutha kwesiphelo setyhubhu, kunye nokusebenza kakuhle komatshiniNgenxa yomxholo wayo ophantsi wekhabhoni, ukuwelda kugqwesile, nto leyo eyenza ukuba ibe lolona khetho lungabizi kakhulu kwizixhobo zokudlulisa ubushushu.I-A179 kunye ne-A192 "ziindlela ezisebenzayo" kwinkonzo yebhoyila enoxinzelelo oluphantsi noluphakathi.

2. I-ASTM A192 / ASME SA192–Umgangatho weThubhu yeBoiler yoXinzelelo oluPhezulu

I-ASTM A192izigqubutheloiityhubhu zebhoyila zentsimbi yekhabhoni ezingenamthungo zenkonzo yoxinzelelo oluphezulukwaye yenye yezona nkcukacha zisetyenziswa kakhulu kwizikhululo zamandla kunye neebhoyila zemizi-mveliso.

Izinto eziphambili: Intsimbi yekhabhoni (umxholo yekhabhoni 0.06%–0.18%)

Iipropati eziphambili zoomatshini:

Amandla okuThamba: ≥325 MPa

Amandla okuvelisa: ≥180 MPa

Ukwandiswa: ≥35%

Ubunzima: ≤137 HBW (77 HRB)

Izicelo eziqhelekileyo:

Iityhubhu zodonga lwamanzi

Iityhubhu ze-Economizer

Amacandelo okuvelisa umphunga

Ii-superheaters ezishushu kakhulu

Umahluko ongundoqo phakathi kwe-A192 kunye ne-A179: I-A192 ibekaukunyamezelana kobukhulu bodonga obuqinileyokwaye ifanelekile kwiizicelo zebhoyila yoxinzelelo oluphezuluXa uxinzelelo loyilo ludlula umda we-A179, i-A192 yeyona ikhethwayo yokuphucula. Zombini zinemilo efanayo yeekhemikhali kunye namanqanaba amandla, kodwa i-A192 ineemfuno ezingqongqo zokuvelisa nokuhlola.

3. I-ASTM A210 / ASME SA210–Iityhubhu zeBoiler zentsimbi yeKhabhoni ephakathi kunye neeSuperheater

I-ASTM A210izigqubutheloibhoyila yentsimbi ephakathi enekhabhoni ethe tyaba kunye neetyhubhu ze-superheaterkwaye inika amanqanaba amabini okuqina:Ibanga A1kwayeIbanga C.

Izinto eziphambili: Intsimbi yekhabhoni ephakathi

Ibanga A1Umxholo wekhabhoni malunga ne-0.27%

Ibanga CUmxholo wekhabhoni malunga ne-0.35%

Iipropati eziphambili zoomatshini:

Ibanga	Tensile strength	Unikeze Amandla	Ukuqina
Ibanga le-A210 A1	≥415 MPa	≥255 MPa	≤143 HBW
Ibanga C le-A210	≥485 MPa	≥275 MPa	≤179 HBW

Izicelo eziqhelekileyo:

Imibhobho yenkqubo yebhoyila

Iityhubhu zeSuperheater

Imibhobho yomphunga enobushushu obuphezulu

Inzuzo engundoqo ye-A210Umxholo wekhabhoni ophakathi unikaamandla aphezulu kunye nokumelana nobushushuIbanga C linika amandla angaphezulu phantse ngama-50% kune-A179/A192, nto leyo eyenza ukuba lifaneleke kumaqondo obushushu aphezulu kunye noxinzelelo. Nangona kunjalo,ukuwelda kunye nokucubungula intsimbi ye-medium-carbon kufuna ulawulo olucokisekileyo ngakumbiI-A210 ifanelekile kwiinkqubo zebhoyila kunye ne-superheater ezineqondo lobushushu eliyilwe yi-400°C–450°C.

4. I-ASTM A213 / ASME SA213–Iityhubhu ze-Alloy Steel kunye ne-Stainless Steel

I-ASTM A213izigqubutheloiityhubhu ze-ferritic kunye ne-austenitic alloy-steel ezingenamthungongenxaibhoyila, i-superheater, kunye ne-heat exchangeriindawo ezinobushushu obuphezulu.

Izixhobo eziphambili: Intsimbi ye-alloy / intsimbi engatyiwayo

Ii-alloys zeFerritic: T11, T12, T22, T91, T92, njl.

Iintsimbi ezingenasici zase-Austenitic: TP304H, TP347H, njl.

Iipropati eziphambili zoomatshini:

Ibanga	Tensile strength	Unikeze Amandla	Isicelo esiqhelekileyo
T11(1.25Cr-0.5Mo)	≥415 MPa	≥170 MPa	Iindonga zamanzi zebhoyila, ii-superheater
T12(1Cr-0.5Mo)	≥415 MPa	≥205 MPa	Iindonga zamanzi ebhoyila, izinto ezigcina uqoqosho
T22(2.25Cr-1Mo)	≥415 MPa	≥205 MPa	Iibhoyila, iindawo zokucoca ezishushu kakhulu
T91(9Cr-1Mo-V)	≥585 MPa	≥415 MPa	Iibhoyila zesikhululo samandla esibaluleke kakhulu

Izicelo eziqhelekileyo:

Iindonga zamanzi ebhoyila

Abaxhasi bezoqoqosho

Izifudumezi-moya

Imibhobho yomphunga

Izixhobo zokucoca ezishushu kakhulu

Ixabiso eliPhambili le-A213Ukongezwa kwe-chromium (Cr) kunye ne-molybdenum (Mo) kunikaukumelana kakuhle kwe-oxidation kunye nokumelana nokuqhekeka kumaqondo obushushu aphezuluI-T22 ingasebenza ixesha elide kwi540°C–580°C, ngelixa i-T91/T92 ingasetyenziswa apha ngasentla600°Ckwiiyunithi ezibalulekileyo kakhulu. Xa iintsimbi zekhabhoni (A179/A192/A210) zingakwazi ukuhlangabezana neemfuno zamandla okuqhekeka obushushu obuphezulu, iintsimbi ze-alloy ze-A213 zikhetho olungenakuphepheka.

III. Indlela Yokukhetha - Isikhokelo Sezigqibo Zokuthenga

Ukukhetha ngokweqondo lobushushu / uxinzelelo

Imeko yeNkonzo	Umgangatho ocetyiswayo	Isizathu
Izitshintshi zobushushu eziphantsi, ii-condensers	A179	Ikhabhoni ephantsi, ayibizi kakhulu, iyakwazi ukwakheka kakuhle
Iibhoyila eziphakathi/ezinoxinzelelo oluphezulu, ezigcina uqoqosho	A192	Ukunyamezelana kobukhulu bodonga obuqinileyo, okufanelekileyo kuxinzelelo oluphezulu
Izifudumezi eziphezulu zobushushu obuphezulu (~450°C)	Ibanga C le-A210	Ikhabhoni ephakathi, amandla aphezulu
Iindawo ezinobushushu obuphezulu (540°C+)	A213 T22	Ayinawo amandla okuhambahamba, ayinawo amandla okuxinana
I-Supercritical (600°C+)	A213 T91/T92	Amandla aphezulu kakhulu, ukumelana nobushushu obugqithisileyo

Ukukhetha Ngokweentlobo Zezixhobo

Uhlobo lweZixhobo	Umgangatho ocetyiswayo	Uluhlu lobungakanani
Izitshintshi zobushushu, ii-condensers	A179	OD 19–76.2mm
Iindonga zamanzi zebhoyila ezinoxinzelelo oluphezulu, izinto ezigcina uqoqosho	A192	OD 19–177.8mm
Iibhoyila, ii-superheater	A210 A1/C	OD 19–127mm
Amacandelo ebhoyila abonisa ubushushu obuphezulu	A213 T11/T22/T91	OD 19–127mm

 

Nokuba uyayidinga naIityhubhu zokutshintsha ubushushu ze-A179, Iityhubhu zebhoyila ezinoxinzelelo oluphezulu ze-A192, Iityhubhu ze-superheater ze-A210 zekhabhoni ephakathiokanyeIityhubhu zentsimbi ye-alloy ye-A213 T11/T22/T91, ISanonpipe ihambisaUmgangatho oPhezulu, ukuhanjiswa okuKhawulezayo, kunye nomngcipheko ongekhoyo– izisombululo zokubonelela ngeenkonzo ezifumaneka kwindawo enye kwiiprojekthi zakho.

+86 22 5865 8800 / +86 153 2010 0890
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