Yuav Ua Li Cas Xaiv GR1 Titanium Tube rau Cov Hluav Taws Xob thiab Cov Condensers

Plhaub thiab raj kub exchangers muaj cov kev xav tau tshwj xeeb. Tubes yuav tsum tiv thaiv corrosion ntawm ob sab. Lawv yuav tsum dov rau hauv cov ntawv raj tsis muaj cracking. Lawv yuav tsum ua haujlwm thermal cycling. Lawv yuav tsum nyob ntev 20+ xyoo nrog kev saib xyuas tsawg.

ASTM B338 GR1 titanium rajntsib tag nrho cov no. Cov ntsiab lus oxygen tsawg (0.18% max) muab cov ductility siab rau dov thiab U-bending. Cov tshuaj tiv thaiv corrosion ua dej hiav txwv, dej brackish, thiab tshuaj lom neeg.

Rau tag nrho technical specifications ntawmASTM B338 GR1 titanium raj, suav nrog ntau qhov loj me thiab cov khoom siv kho tshuab rau cov kev pabcuam thaum tshav kub kub exchanger, saib cov khoom nplooj ntawv ntawm no.

Tau txais Custom Technical Solution

Thaum tshav kub kub exchanger tubes ua raws li tus qauv dimension.ASTM B338 GR1muaj nyob rau hauv:

Rau siab - lub tshuab nqus dej twj tso kua mis, qhia cov phab ntsa tuab (2.0 hli thiab siab dua).Rau cov dej hiav txwv condensers, cov phab ntsa nyias (1.0-1.2 hli) yog qhov ntau vim tias tsis xav tau kev tiv thaiv corrosion.

Cov lus nug no tuaj txog ntawm txhua qhov project.

Rau feem ntau lub plhaub thiab lub raj cua kub exchangers, welded thiab kos hlab ua haujlwm.Kev khiav hauj lwm siab yog feem ntau 150-300 psi. GR1 welded raj tuav qhov ntau yam tsis muaj teeb meem.

Qhia seamless thaum:

Tsim siab tshaj 500 psi

Tube phab ntsa yog nyob rau hauv 1.2 hli thiab yuav dov

U-khoov vojvoog qis dua 2.5x OD

Qhov project specification qhia meej yuav tsum seamless

Rau cov txheej txheem condensers thiab coolers, welded hlab txuag 30-50% tsis muaj qhov sib txawv.

Xav paub ntau ntxiv nyob rau hauv seamless vs welded phau ntawv qhia ntawm no.

Rolling (expanding) titanium raj rau hauv cov ntawv raj yuav tsum tau saib xyuas kom haum.

Pom zoo cuam tshuam rau GR1 raj:

0.05mm txog 0.10mm rau kev pabcuam txheem

0.10 mm txog 0.15 mm rau siab -kub los yog thermal cycling kev pab cuam

Tsis txhob siv cov elastomeric gaskets ntawm lub raj thiab cov ntawv raj.Cov no tsim crevices uas ntxiab txheej txheem kua. Hauv kev pabcuam sov chloride, crevice corrosion pib ntawm lub gasket. Hlau -rau- hlau dov yog tus qauv txheej txheem.

Rau nyias phab ntsa hlab (hauv qab 1.2 hli), seamless yob ntau tusyees tshaj welded.Lub weld seam ntawm welded raj tsim ib qho chaw me ntsis stiffer. Nrog cov phab ntsa nyias, qhov no tuaj yeem ua rau tsis sib xws.

Floating head heat exchangers siv U-khoov raj. GR1 zoo haum rau U- khoov vim nws cov ductility siab.

Yam tsawg kawg khoov vojvoog rau GR1 yam tsis muaj annealing:

1.5x OD rau seamless

2.5x OD rau welded thiab kos

Thaum xaj U- khoov, muab:

Tube OD thiab phab ntsa thickness

Centerline khoov vojvoog

Leg lengths (ob tog)

Orientation ntawm khoov dav hlau

Flow velocity cuam tshuam rau ob qho tib si yaig thiab corrosion.

Yam tsawg kawg nkaus ceev:1.5 m / s (5 ft / s) rau kev pabcuam dej hiav txwv. Hauv qab no, biofouling accumulates thiab crevice corrosion tsub kom nce.

Qhov siab tshaj plaws:5 m / s (16 ft / s) rau cov kua dej huv. Kev nrawm dua tuaj yeem ua rau yaig ntawm cov raj xa dej, tshwj xeeb tshaj yog tias muaj cov xuab zeb lossis cov khib nyiab.

Rau cov dej uas raug tshem tawm, txo qhov siab tshaj plaws mus rau 3 m / s.Siv cov khoom tiv thaiv kev yaig kawg (ferrules lossis cov raj xaum kawg) yog tias cov khib nyiab tsis tuaj yeem zam tau.

GR1 yog qhov tsim nyog rau kev siv hluav taws xob txuas ntxiv los ntawm 0℃txog 80℃(32℃F txog 176℃F) hauv cov kua dej feem ntau.

Tshaj 80 degree, ob qhov kev pheej hmoo nce ntxiv:

Crevice corrosion nyob rau hauv cov kev pab cuam chloride

Kev txo qis qis zog (tsis cuam tshuam rau kev ntim siab tab sis cuam tshuam rau lub raj ntawv sib koom ua ke)

Rau kev pabcuam siab tshaj 80℃nrog chlorides, qhia GR7 lossis GR12.Cov qib no muaj palladium lossis molybdenum thiab tiv taus crevice corrosion mus txog 200 degree.

Rau cov kev pabcuam uas tsis yog - chloride ( dej huv, chav dej, hydrocarbons), GR1 tuaj yeem siv txog li 150℃yam tsis muaj teeb meem cuam tshuam loj.

1. Dab tsi yog qhov loj tshaj plaws rau GR1 tshav kub exchanger raj?
25.4 hli OD x 1.65 hli phab ntsa (1.0 nti OD x 0.065 nti phab ntsa). Qhov loj me no tau khaws cia los ntawm cov neeg muag khoom feem ntau . 19 hli OD x 1.24 hli phab ntsa kuj muaj.

2. Cov raj GR1 puas tuaj yeem siv rau hauv cov khoom siv cua sov?
Yog, tab sis xyuas qhov kub thiab txias. Rau feedwater heaters saum 80 degree, qhia GR7 hloov GR1. Rau nuclear feedwater rhaub, seamless feem ntau yuav tsum tau.

3. Dab tsi yog qhov siab tshaj plaws lub raj tsis txhawb nqa rau GR1?
Xa mus rau TEMA cov qauv. Rau ib txwm 25.4 mm OD x 1.65 mm phab ntsa, qhov siab tshaj plaws uas tsis muaj kev txhawb nqa yog kwv yees li 1,500 mm rau kev pabcuam huv. Txo kom siab txaus los yog kev co txaus ntshai.

4. Yuav ua li cas los tiv thaiv lub raj inlet yaig hauv dej xuab zeb?
Nruab titanium ferrules ntawm lub raj inlets. Ferrules ncav cuag 50-100 mm rau hauv lub raj thiab tiv thaiv cov ntug ntawm cov xuab zeb. Qhia ferrules ntawm PO.

5. Puas yog GR1 raj siv tau nrog cov pa roj carbon steel raj?
Yog, tab sis cais tawm los tiv thaiv galvanic corrosion. Siv daim ntawv titanium-fab lub raj, los yog siv cov pa roj carbon steel. Direct titanium-rau- carbon steel tiv tauj hauv cov kua dej ua rau cov pa roj carbon steel sai sai.

6. Dab tsi lub raj suab pom zoo rau GR1 raj?
Standard TEMA suab: 1.25x OD rau daim duab peb sab, 1.3x OD rau square qauv. Rau 25.4 hli OD raj, cov suab nrov yog 32 hli.

7. Yuav ua li cas ntxuav GR1 raj thaum lub sij hawm kho tshav kub exchanger?
Kev siv dej siab siab - siab (5,000–10,000 psi) yog siv tau. Sponge pob ntxuav ua haujlwm rau cov condensers. Kev ntxuav cov kua qaub nrog inhibited hydrochloric lossis sulfamic acid yog siv tau. Tsis txhob siv hydrofluoric acid.

8. Cov raj GR1 puas tuaj yeem rov siv dua - siv tom qab rub los ntawm cov ntawv raj qub?
Tsis pom zoo. Rolling ua hauj lwm- hardens lub raj kawg. Re- dov tib lub raj kawg feem ntau ua rau tawg. Hloov cov raj es tsis siv dua -.

9. Lub sij hawm xa khoom zoo li cas rau GR1 cov cua kub exchanger raj?
Welded hlab hauv qhov ntau thiab tsawg: 2-4 lub lis piam. Seamless lossis tsis yog - qhov loj me: 6-10 lub lis piam. Cov khoom loj (tshaj 10,000 kg) ntxiv 2-4 lub lis piam.

10. Cov kev lag luam twg siv GR1 cua kub exchanger raj feem ntau?
Kev tsim hluav taws xob (condensers, feedwater heaters), desalination (evaporators, preheaters), chemical processing (coolers, heaters), marine (engine coolers, hydraulic oil coolers), thiab HVAC (chillers, condensers).

Peb lub chaw yog nruab nrog rau cov titanium tube ntau lawm kab, nrog rau txias pilger mills, kos lub rooj ntev zaum, thiab argon- puv annealing furnaces tshwj xeeb calibrated rau kev lag luam ntshiab titanium.Rau welded raj, peb siv tsis siv neeg TIG vuam chaw nres tsheb nrog online eddy tam sim no saib xyuas cov weld seam tsis xws luag nyob rau hauv lub sij hawm.Cov cuab yeej tshuaj ntsuam xyuas suav nrog tag nrho -spectrum spectrometer rau tshuaj ntsuam xyuas tshuaj, ib qho ultrasonic flaw detector rau seamless hlab, thiab ib tug hydrostatic siab tester ntsuas rau 10,000 psi.Tag nrho cov raj tiav dhau los ntawm laser micrometer rau OD thiab phab ntsa thickness ntsuas.Peb lub chaw soj nstuam zoo tswj hwm tus ntoo khaub lig ywj siab- kuaj xyuas txhua qhov kub, thiab tag nrho cov cuab yeej tshuaj xyuas tau ntsuas txhua xyoo rau NIST-cov qauv ntsuas tau. Qhov kev teeb tsa no tso cai rau peb los tsim cov ASTM B338 cov hlab ntsha uas ua tau raws li qhov xav tau los yog tshaj qhov yuav tsum tau ua kom muaj zog thiab ua haujlwm corrosion.

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