Ho boiler, exchanger ea mocheso, superheater, le lits'ebetsong tse ling tsa khatello e phahameng ea mocheso o phahameng, ho khetha maemo a nepahetseng a phala ea tšepe ho ama ka kotloloho polokeho ea lisebelisoa le bophelo ba tšebeletso.ASTM A179, A192, A210, le A213ke maemo a mane a sebelisoang haholo a tube ea boiler machabeng, empa e 'ngoe le e 'ngoe e etselitsoe maemo a fapaneng a ts'ebeletso le litlhoko tsa ts'ebetso. Sengoloa sena se fana ka tlhahlobo e qaqileng ho tsoa hothepa, thepa ea mechini, le maemo a sebetsangho o thusa ho etsa diqeto tse nang le tsebo mabapi le theko.

I. Boemo ba Motheo ba Maemo a Mane

E tloaelehileng	Mabitso a felletseng	Mofuta oa Boitsebiso	Kopo ea mantlha
ASTM A179 / ASME SA179	Liphaephe tsa Tšepe e Tlase e Huloang ka Mocheso tse se Nang Motsoako bakeng sa Li-Condenser le Li-Heat-Shape tse se Nang Motsoako	Tšepe e nang le khabone e tlase	Li-exchange tsa mocheso, li-condensers, lisebelisoa tse tšoanang tsa phetisetso ea mocheso
ASTM A192 / ASME SA192	Li-Tube tsa Boiler tsa Tšepe ea Khabone tse se nang Seamless bakeng sa Khatello e Phahameng	Tšepe ea k'habone	Mabota a metsi a boiler a khatello e phahameng, a moruo
ASTM A210 / ASME SA210	Boiler ea Tšepe ea Khabone e Mahareng e se Nang Seamless le Liphaephe tsa Superheater	Tšepe ea khabone e mahareng	Sistimi ea boiler, li-superheater
ASTM A213 / ASME SA213	Li-Tube tsa Ferritic le Austenitic Alloy-Steel tse se nang seamless, Superheater le Heat-Exchanger Tubes	Tšepe e kopantsoeng / tšepe e sa hloekang	Liboiler tsa seteishene sa motlakase se nang le khatello e phahameng tse nang le mocheso o phahameng, li-unit tse bohlokoa haholo

II. Tlhahlobo e qaqileng ea Tekanyetso ka 'ngoe

1. ASTM A179 / ASME SA179–Mochini oa ho Fetola Mocheso le Liphaephe tsa Condenser

ASTM A179likoaheloliphaephe tsa tšepe tse nang le khabone e tlase tse se nang sekoli tse huloang ke seramee etselitsoeng ka ho khetheha bakeng sali-heat exchanger, li-condenser, le lisebelisoa tse tšoanang tsa phetisetso ea mocheso.

Boitsebiso ba mantlha: Tšepe e nang le khabone e tlase (boleng ba khabone 0.06%–0.18%)

Matlotlo a Bohlokoa a Mekaniki:

Matla a ho Thabisa: ≥325 MPa

Matla a ho hlahisa: ≥180 MPa

Ho lelefatsa: ≥35%

Likopo tse Tloaelehileng:

Li-exchange tsa mocheso tsa khetla le tube

Li-condenser tsa bokaholimo

Mekhoa ea ho futhumatsa metsi a fepang

Lisebelisoa tsa phetisetso ea mocheso lifemeng tsa petrochemical le tsa ho hloekisa

Melemo ea A179: Dikahare tse tlase tsa khabone di fana kathepa e ntle ea ho kobeha serame, bokhoni ba ho tjhesa tube qetellong, le bokhoni bo botle ba ho sebetsa ka thataKa lebaka la khabone e tlase, ho tjheseletsa ho hotle haholo, e leng se etsang hore e be khetho e theko e tlase ka ho fetisisa bakeng sa lisebelisoa tsa phetisetso ea mocheso.A179 le A192 ke "lipere tse sebetsang" bakeng sa tšebeletso ea boiler ea khatello e tlase le e mahareng.

2. ASTM A192 / ASME SA192–Tekanyetso ea Tube ea Boiler ea Khatello e Phahameng

ASTM A192likoaheloliphaephe tsa boiler tsa tšepe ea carbon e se nang seamless bakeng sa tšebeletso ea khatello e phahameng'me ke e 'ngoe ea litlhaloso tse sebelisoang haholo seteisheneng sa motlakase le liboiler tsa indasteri.

Boitsebiso ba mantlha: Tšepe ea k'habone (boleng ba k'habone 0.06%–0.18%)

Matlotlo a Bohlokoa a Mekaniki:

Matla a ho Thabisa: ≥325 MPa

Matla a ho hlahisa: ≥180 MPa

Ho lelefatsa: ≥35%

Bothata: ≤137 HBW (77 HRB)

Likopo tse Tloaelehileng:

Liphaephe tsa lebota la metsi

Liphaephe tsa Economizer

Likarolo tsa tlhahiso ea mouoane

Li-superheater tse mocheso o tlase

Phapang ea Bohlokoa lipakeng tsa A192 le A179: A192 e behamamello e thata ea botenya ba lebota'me e loketse bakeng salits'ebetso tsa boiler ea khatello e phahameng ea moraloHa kgatello ya moralo e feta moedi wa A179, A192 ke ntlafatso e kgethwang. Ka bobedi di na le sebopeho sa dikhemikhale le maemo a matla a tshwanang, empa A192 e na le ditlhoko tse thata tsa tlhahiso le tlhahlobo.

3. ASTM A210 / ASME SA210–Boiler ea Tšepe ea Khabone e Mahareng le Liphaephe tsa Superheater

ASTM A210likoaheloboiler ea tšepe e mahareng ea khabone e se nang sekoli le liphaephe tsa superheater'me e fana ka maemo a mabeli a matla:Sehlopha sa A1leSehlopha sa C.

Boitsebiso ba mantlha: Tšepe e mahareng ea khabone

Sehlopha sa A1: Boleng ba khabone bo ka bang 0.27%

Sehlopha sa C: Boleng ba khabone bo ka bang 0.35%

Matlotlo a Bohlokoa a Mekaniki:

Sehlopha	Matla a tšepe	Matla a Tekanyo	Bothata
Kereiti ea A210 A1	≥415 MPa	≥255 MPa	≤143 HBW
A210 Kereiti C	≥485 MPa	≥275 MPa	≤179 HBW

Likopo tse Tloaelehileng:

Liphaephe tsa sistimi ea boiler

Liphaephe tsa Superheater

Liphaephe tsa mouoane tse mocheso o phahameng

Melemo ea Bohlokoa ea A210: Dikahare tse mahareng tsa khabone di fana kamatla a phahameng le ho hanyetsa mochesoSehlopha sa C se fana ka matla a ka bang 50% ho feta A179/A192, e leng se etsang hore e lokele mocheso le khatello e phahameng. Leha ho le jwalo,ho tjheseletsa le ho sebetsana le tshepe e mahareng ya khabone ho hloka taolo e hlokolosi haholoanyaneA210 e loketse litsamaiso tsa boiler le tsa superheater tse nang le mocheso oa moralo oa400°C–450°C.

4. ASTM A213 / ASME SA213–Tšepe ea Motsoako le Liphaephe tsa Tšepe e sa Khaotseng

ASTM A213likoaheloliphaephe tsa tšepe tse se nang seamless tsa ferritic le austenitic alloy-steelbakeng saboiler, superheater, le exchanger ea mochesolikarolo tse nang le mocheso o phahameng.

Lisebelisoa tsa mantlha: Tšepe e kopantsoeng / tšepe e sa hloekang

Li-alloy tsa Ferritic: T11, T12, T22, T91, T92, jj.

Litšepe tse sa hloekang tsa Austenitic: TP304H, TP347H, jj.

Matlotlo a Bohlokoa a Mekaniki:

Sehlopha	Matla a tšepe	Matla a Tekanyo	Tšebeliso e Tloaelehileng
T11(1.25Cr-0.5Mo)	≥415 MPa	≥170 MPa	Mabota a metsi a boiler, li-superheater
T12(1Cr-0.5Mo)	≥415 MPa	≥205 MPa	Mabota a metsi a boiler, lintho tse ntlafatsang moruo
T22(2.25Cr-1Mo)	≥415 MPa	≥205 MPa	Liboiler, likarolo tsa fektheri ea ho hloekisa tse nang le mocheso o phahameng
T91(9Cr-1Mo-V)	≥585 MPa	≥415 MPa	Liboiler tsa seteishene sa motlakase tse nang le lintlha tse phahameng haholo

Likopo tse Tloaelehileng:

Mabota a metsi a boiler

Baithuki

Lifuthumatsi tse ncha

Liphaephe tsa mouoane

Lisebelisoa tsa ho hloekisa tse nang le mocheso o phahameng

Boleng ba Motheo ba A213Ho eketsoa ha chromium (Cr) le molybdenum (Mo) ho fana kakhanyetso e ntle ea oxidation le khanyetso ea ho thekesela mochesong o phahamengT22 e ka sebetsa nako e telele ho540°C–580°C, ha T91/T92 e ka sebediswa ka hodimo600°Cbakeng sa diyuniti tse bohlokwa haholo. Ha ditshipi tsa khabone (A179/A192/A210) di sa kgone ho fihlela ditlhoko tsa matla a ho kgefutsa mochesong o phahameng, ditshipi tsa alloy tsa A213 ke kgetho e ke keng ya qojwa.

III. Mokhoa oa ho Khetha - Tataiso ea Liqeto tsa Theko

Khetho ka Mocheso / Khatello

Boemo ba Tšebeletso	Maemo a Khothaletsoang	Lebaka
Li-condenser tsa mocheso o tlase, li-heat exchanger	A179	Khabone e tlase, e theko e tlase, e ka bopehang hantle
Liboiler tse mahareng/tse nang le khatello e phahameng, tse ntlafatsang moruo	A192	Mamello e thata ea botenya ba lebota, e loketse khatello e phahameng
Li-superheater tse nang le mocheso o phahameng (~450°C)	A210 Kereiti C	Khabone e mahareng, matla a phahameng
Likarolo tse nang le mocheso o phahameng (540°C+)	A213 T22	E hanela ho thekesela, e hanela ho qhibilihisoa ha oksijene
Ho ba le mocheso o phahameng haholo (600°C+)	A213 T91/T92	Matla a phahameng haholo, ho hanyetsa mocheso o feteletseng

Khetho ka Mofuta oa Lisebelisoa

Mofuta oa Thepa	Maemo a Khothaletsoang	Boholo ba Boholo
Li-exchange tsa mocheso, li-condensers	A179	OD 19–76.2mm
Mabota a metsi a boiler a khatello e phahameng, a moruo	A192	OD 19–177.8mm
Liboiler, li-superheater	A210 A1/C	OD 19–127mm
Likarolo tsa boiler tse nang le mocheso o phahameng haholo	A213 T11/T22/T91	OD 19–127mm

 

Hore na o hlokaLiphaephe tsa mocheso oa A179, Liphaephe tsa boiler tsa khatello e phahameng tsa A192, Liphaephe tsa A210 tse nang le khabone e maharengkapaLiphaephe tsa tšepe tsa motsoako oa A213 T11/T22/T91, Sanonpipe e fana kaBoleng bo Holimo, Phano e Potlakileng, le Kotsi e se Nang Kotsi– ditharollo tsa phepelo ya sebaka se le seng bakeng sa diporojeke tsa hao.

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