ASTMB265 Titanium Expansion Joint Bellows Compensator

Titanium expansion pob qij txha, tseem hu ua titanium bellows expansion pob qij txha los yog titanium hlau compensators, yog cov tseem ceeb compensating Cheebtsam ua los ntawm titanium thiab titanium alloys uas siv lub elastic deformation ntawm lub bellows kom nqus tau cov kev hloov nyob rau hauv pipeline systems. Lawv feem ntau muaj lub hauv paus (lub cev ua haujlwm), cov kav dej kawg, flanges, cov lus qhia ntws, thiab ntau yam khoom siv. Los ntawm kev nthuav dav zoo thiab kev cog lus ntawm lub hauv paus, lawv nqus qhov hloov pauv hauv cov kav dej, cov kav dej, lossis cov ntim khoom los ntawm thermal expansion thiab contraction, mechanical vibration, thiab installation deviations.

Khoom nta:

Raws li "kev sib koom ua ke" hauv cov txheej txheem kev lag luam niaj hnub no, titanium expansion pob qij txha ua lub luag haujlwm tsis tuaj yeem ua kom muaj kev nyab xeeb ntawm cov kav dej thiab txuas cov cuab yeej siv lub neej, tshwj xeeb tshaj yog tsim rau cov xwm txheej hnyav xws li muaj zog corrosion thiab alternating siab thiab tsis kub, qhov twg cov khoom siv stainless hlau tsis tuaj yeem tiv taus qhov xav tau.

(I) Zoo Corrosion Resistance
Titanium naturally forms a dense and stable oxide film (TiO₂) on its surface, enabling it to resist corrosion from strong acids, strong alkalis, seawater, and various chloride-containing media. Nyob rau hauv ib puag ncig corrosive heev xws li chemical thiab marine engineering tej yaam num, corrosion kuj ntawm titanium expansion pob qij txha nyob deb tshaj li cov zoo tib yam stainless hlau, hauv paus daws qhov teeb meem tsis tu ncua ntawm bellows to los ntawm corrosive xov xwm. Nws yog ib qho tsim nyog hais tias titanium expansion pob qij txha tsis muaj qhov tshwj xeeb hais txog cov ntsiab lus chloride ion, ua rau lawv tshwj xeeb tshaj yog haum rau cov tshuab uas nruab nrab lossis ib puag ncig ib puag ncig muaj cov tshuaj chloride ntau dhau.

(II) Lub zog tshwj xeeb
Titanium muaj qhov ceev ntawm kwv yees li 4.5 g / cm³, tsuas yog li 60% ntawm cov hlau, tab sis nws lub zog yog ze rau cov hlau zoo tib yam. Qhov no "lub teeb yuag thiab siab- lub zog" tus yam ntxwv tso cai rau titanium expansion pob qij txha kom txo tau qhov hnyav tag nrho ntawm cov kav dej thaum ua kom cov load-cov kabmob muaj peev xwm, yog li txo cov load ntawm cov qauv txhawb nqa thiab cov nqi installation.

(III) Dav Kub Adaptability
Titanium expansion pob qij txha muaj cov khoom siv zoo heev thiab cov tawv nqaij nyob rau hauv qhov kub thiab txias ntawm -253℃txog 600℃. Txawm hais tias thauj cov xov xwm cryogenic xws li kua nitrogen los yog tuav cov cua kub kub, nws tuaj yeem ua haujlwm ruaj khov yam tsis muaj embrittlement lossis softening tsis ua haujlwm. Nws yuav tsum raug sau tseg tias cov khoom siv ntawm cov ntshiab titanium txo qis dua 300 degree; Nyob rau hauv xws li mob, expansion pob qij txha ua los ntawm titanium alloys (xws li TC4) tuaj yeem siv tau, uas tuaj yeem ua haujlwm ruaj khov ntawm 500-600 degree.

(IV) Zoo heev Flexibility thiab qaug zog lub neej
Titanium thiab titanium alloys muaj ductility zoo, muaj peev xwm tiv taus qhov tseem ceeb axial, lateral, thiab angular deformation, thiab tsis yooj yim tawg vim rov nthuav dav thiab contraction. Raws li cov qauv kev ua haujlwm, kev tsim kev pabcuam lub neej ntawm titanium expansion pob qij txha tuaj yeem ncav cuag 15-30 xyoo, deb tshaj li 2-3 xyoos ntawm cov pob qij txha ntawm cov hlau tsis zoo.

(V) Lub neej ntev thiab tus nqi tu qis
Txawm hais tias tus nqi pib ntawm kev yuav khoom ntawm titanium expansion pob qij txha yog siab dua li ntawm cov hlau tsis muaj steel, lawv cov txiaj ntsig kev lag luam thoob plaws lub neej tag nrho yog qhov tseem ceeb. Steel expansion pob qij txha feem ntau muaj ib tug lifespan tsuas yog 2-3 xyoos, thaum titanium bellows muaj peev xwm muaj kev pab cuam lub neej ntawm ntau tshaj 20 xyoo nrog yuav luag tsis muaj nqi kho. Rau ib puag ncig corrosive heev xws li tshuaj lom neeg thiab marine engineering tej yaam num uas yuav tsum tau nquag downtime rau hloov, qhov zoo ntawm titanium expansion pob qij txha yog tshwj xeeb tshaj yog tseem ceeb.

1. Displacement Compensation: Absorbs axial, lateral, or angular displacements in pipelines los ntawm thermal expansion thiab contraction, media pressure fluctuations, lossis installation deviations, tiv thaiv kev puas tsuaj vim kev ntxhov siab ntau dhau.

2. Kev vibration thiab suab nrov txo: Buffers vibrations los ntawm cov twj tso kua mis, compressors, thiab lwm yam khoom siv thaum lub sij hawm ua hauj lwm, txo qhov kev sib kis ntawm kev co mus rau cov kav dej thiab txo cov suab nrov uas tsim los ntawm cov dej cuam tshuam.

3. Kev poob siab poob siab: nqus qee qhov cuam tshuam lub zog los ntawm kev deformation thaum cov dej ntws los yog lub siab hloov pauv sai, ua kom lub zog ruaj khov.

4. Kev txhim kho yooj yim thiab kev saib xyuas: Kev them nyiaj rau qhov tsis raug thaum lub sij hawm kev teeb tsa kav dej, ua kom yooj yim rau txoj kev teeb tsa; tso cai rau kev hloov pauv hloov pauv ntawm cov raj xa dej thaum lub sijhawm kev saib xyuas tom qab.