Xaiv txoj cai ATEX centrifugal ntxuam Tsis yog hais txog kev txheeb xyuas lub thawv - nws yog hais txog kev tiv thaiv hluav taws xob hauv cov nroj tsuag tshuaj hmoov av, tsis txhob muaj kev puas tsuaj loj hauv cov khoom siv tshuaj pleev xim, lossis ua kom cov cua ntws tsis tu ncua uas cov methane concentrations hover ze rau qhov txwv tsis pub tawg. Peb tau pom cov chaw qhia "ATEX-rated" cov kiv cua tsuas yog nrhiav tau - thaum lub sijhawm ua haujlwm - tias lub tshuab kaw tsis tau ntawv pov thawj rau Cheeb Tsam 1 cov pa roj, lossis cov khoom siv impeller tsis tuaj yeem tiv taus cov pa silica-laden. Tias yog vim li cas kev xaiv pib tsis nrog tus lej catalog, tab sis nrog peb cov lus nug uas tsis sib tham: Dab tsi yog qhov kev faib tawm thaj tsam txaus ntshai? Dab tsi yog qhov siab tshaj plaws ua haujlwm kub ntawm cov cua tshuab? Thiab qhov kev ntxhov siab dab tsi ntawm cov kiv cua yuav dhau mus - corrosion, abrasion, thermal cycling, lossis tag nrho peb?
Vim li cas ATEX Certification xav tau ntau dua li daim ntawv lo
Ib ATEX centrifugal ntxuam yuav tsum ua tau raws li ob qhov kev xav tau: cov cuab yeej tiv thaiv qib (EPL) sib piv rau cheeb tsam (piv txwv li, Ga rau Cheeb Tsam 0, Gb rau Cheeb Tsam 1), thiab cov pa roj sib xyaw ua ke (IIC rau hydrogen / acetylene, IIB rau ethylene, IIA rau propane). Tab sis daim ntawv pov thawj ib leeg tsis lav kev ua haujlwm ntawm thaj chaw. Hauv ib qhov project refinery, tus kiv cua dhau ATEX kev ntsuas ntawm 25 ° C ambient - tab sis ua tsis tiav thaum lub caij ntuj sov pib thaum casing qhov kub ntawm qhov kub siab tshaj T4 (135 ° C) vim tsis txaus cov cua kub dissipation tsim. Kev ua raws li lub ntiaj teb tiag tiag txhais tau tias kev txheeb xyuas cov chav kawm thermal * raws li lub luag haujlwm tiag tiag *, tsis yog kev kuaj sim xwb. Nws kuj txhais tau tias kev lees paub txhua yam - cov kabmob ntsaws ruaj ruaj, lub tes tsho ncej, txawm tias fasteners - tau teev nyob rau hauv daim ntawv pov thawj. Peb niaj hnub hla kev kuaj EC-hom ntawv pov thawj tiv thaiv lub cev ua ntej xa khoom. Tsis muaj kev xav. Tsis muaj kev zam.
Kev xaiv tsim uas tiv thaiv kev ua tsis tiav - Tsis yog raws li cov qauv
Cov kiv cua uas muaj ntawv pov thawj ua tsis tau yog tias nws qhov kev tsim kho tsis sib haum nws ib puag ncig. Xav txog cov kev txiav txim siab ua pov thawj hauv thaj chaw no:
- Cov khoom siv impeller tseem ceeb tshaj qhov ntsuas qhov ntsuas siab. Aluminium impellers ua rau hauv cov pa roj carbon dub plua plav ib puag ncig-txawm tias muaj kev pom zoo ATEX. Titanium lossis stainless-steel variants tshem tawm qhov kev pheej hmoo, tab sis thov kom muaj kev sib npaug zoo kom tsis txhob muaj kev vibration-induced bearing coj hauv kev ua haujlwm 24/7 tas li.
- Kev sib koom ua ke ntawm lub cev muaj zog tsis yog plug-and-play. Lub cev muaj zog ATEX-certified mounted ntawm lub tsev tsis muaj ntawv pov thawj kiv cua voids tag nrho lub rooj sib txoos ua raws. Cov chav tsev tag nrho - suav nrog kev sib txuas ntawm tsav, kev tiv thaiv, thiab lub hauv paus ncej - yuav tsum tau sim ua ib qho system.
- Lub tswv yim sealing txhais lub neej ntev. Standard di ncauj seals xau plua plav mus rau hauv cov kabmob tsis pub dhau lub hli hauv cov nroj tsuag cement. Qhov zoo-siab purg systems nrog inert gas txhaj txuas ntxiv lub neej kev pab cuam los ntawm 3-5 × nyob rau hauv high-particulate aav.
Peb tau hloov ntau dua 120 cov kiv cua qub hauv cov chaw nres tsheb hluav taws xob hluav taws xob uas desulfurization flue gas ua rau muaj kev xeb sai ntawm cov qauv carbon steel casings. Hloov mus rau dual-inlet centrifugal kiv cua nrog epoxy-coated casings thiab Hastelloy-C276 impellers txiav unplanned downtime los ntawm 78% - yam tsis muaj kev cuam tshuam ATEX kev ncaj ncees.
Customization tsis yog khoom kim heev-Nws yog tib txoj hauv kev kom phim qhov tseeb
Off-the-shelf ATEX cov kiv cua tswj cov phau ntawv kawm. Cov chaw tiag tiag tsis ua raws li phau ntawv. Ib chav tsev tshuaj yuav tsum tau muaj qhov ua kom tawg-pov thawj nrog ≤25 dB (A) suab nrov - ua tsis tau nrog tus qauv radial-tip impellers. Kev daws teeb meem: kev cai rov qab-kho titanium impeller, acoustic hauv ob sab phlu ua ke rau hauv lub volute, thiab ncaj qha-tsav IE4 lub cev muaj zog tshem tawm txoj siv-tsav sparking txaus ntshai. Tag nrho lub sij hawm xa tuaj: 11 lub lis piam. Lwm tus neeg siv khoom hauv cov kab ntau lawm sulfuric acid yuav tsum tau tiv thaiv H₂SO₄ pos huab ntawm 80 ° C thaum tswj hwm Zone 1 IIB ntawv pov thawj. Standard epoxy coatings delaminated. Peb siv fluoropolymer-lined cam khwb cia hlau casings nrog ceramic-coated ncej txuas ntxiv-thiab validated thermal expansion coefficients thoob plaws tag nrho cov kev khiav hauj lwm ntau yam.
Kev cai tsis txhais hais tias qeeb. Peb lub tshuab ua haujlwm hauv tsev, kev tsim cov ntawv hlau, thiab cov kab sib npaug sib npaug cia peb hloov pauv cov duab kos duab, hloov kho qhov nkag / qhov hluav taws xob flanges, sib txuas cov ntsuas kub, lossis ntxiv cov chaw nres nkoj tshem tawm - txhua yam tsis muaj ntawv pov thawj qeeb, vim tias peb ua haujlwm nyob rau hauv qhov kev pom zoo tsim ua ntej.
Dab tsi los tom qab daim ntawv them nqi txiav txim siab txog kev nyab xeeb-tsis yog kev ua raws cai xwb
Cov ntaub ntawv yog koj thawj kab ntawm kev tiv thaiv thaum tshawb xyuas lossis kev tshawb xyuas qhov xwm txheej. Txhua ATEX centrifugal ntxuam los ntawm Zibo Hongcheng Ntxuam Co., Ltd. ships nrog tag nrho cov ntaub ntawv kev kawm: EC-hom ntawv pov thawj, xeem ntawv qhia (kev vibration, suab nrov, kub nce), cov ntaub ntawv pov thawj, thiab installation-tshwj xeeb torque specs-tsis generic phau ntawv. Peb suav nrog QR-coded nameplates txuas mus rau kev hloov kho-tswj cov duab kos thiab cov npe khoom seem. Thaum lub chaw petrochemical hauv Oman xav tau kev hloov pauv sai ntawm qhov ua tsis tiav ntawm lub tshuab hluav taws xob centrifugal, peb pawg neeg ua haujlwm tau tshuaj xyuas lawv cov bolts uas twb muaj lawm, ductwork alignment tolerances, thiab hauv zos kab sib chaws voltage harmonics-ces xa ib tug poob rau hauv kev hloov nrog pre-set VFD tsis thiab theem rotation pov thawj. Tsis muaj kwv yees. Tsis muaj teb re-engineering.
Kev nyab xeeb tsis ua tiav ntawm kev ua haujlwm. Nws muaj kev txhawb nqa los ntawm kev saib xyuas kom paub tseeb, qhov chaw taug qab, thiab cov kws ua haujlwm uas tau sawv hauv koj chav tswj thaum pib. Tias yog vim li cas peb cov kev txhawb nqa suav nrog kev cob qhia tshwj xeeb - tsis yog "yuav ua li cas tig nws," tab sis "yuav ua li cas pom qhov cuam tshuam thaum ntxov ntawm cov av noo nyob rau thaj tsam 2."
