Qhov Kev Sib Tw ntawm Corrosive Gas Analysis thiab Cov Khoom Siv Hluav Taws Xob Tseem Ceeb
Kev txheeb xyuas cov roj corrosive nthuav qhia qhov kev sib tw tseem ceeb rau cov khoom siv dej. Kev xaiv cov khoom tsis raug tuaj yeem ua rau saime dc twjtsis ua hauj lwm, cuam tshuam cov ntaub ntawv ncaj ncees, thiab nce nqi kho.
Vim li cas xaiv cov khoom siv tsis yog -Ngotiable
Corrosive gases, xws li acidic fumes (piv txwv li, HCl, SO2), alkaline vapors (xws li, NH3), los yog organic solvents, aggressively tawm tsam standard twj tso kua mis. Cov tshuaj degradation no ua rau:
•Performance Degradation: Cov khoom o los yog hardening ua rau txo tus nqi ntws thiab siab.
•Leakage: Cheebtsam tsis ua hauj lwm cuam tshuam lub kaw lus ruaj ntseg.
•Contamination: Cov khoom siv degraded tuaj yeem paug cov qauv roj, ua rau cov txiaj ntsig kev soj ntsuam tsis raug.
Peb Qhov Tseem Ceeb Tseem Ceeb Yuav Tsum Muaj Tshuaj Tiv Thaiv
Hauv ibmicro diaphragm cua twj tso kua mis, peb qhov chaw tseem ceeb yog nyob rau hauv kev sib cuag ncaj qha nrog cov pa roj thiab yuav tsum muaj tshuaj inert:
| Cheebtsam | Muaj nuj nqi | Khoom siv |
| Pump Head / Chamber | Lub tsev tseem ceeb uas muaj cov roj. | Yuav tsum nruj thiab tshuaj tiv thaiv kom muaj kev ncaj ncees. |
| Diaphragm |
Lub saj zawg zog membrane uas tsim cov twj tso kua mis. |
Yuav tsum tau chemically resistant thiab tswj siab yooj thiab mechanical zog. |
| Valves / Kos Valves | Cov khoom me me tswj cov kev taw qhia ntawm cov pa roj. | Yuav tsum muaj tshuaj resistant thiab muaj zoo elasticity rau txhim khu kev qha sealing. |
Cov yam ntxwv ntawm kev siv tshuaj lom neeg -Cov ntaub ntawv tsis kam
Kev xaiv cov khoom tsim nyog suav nrog kev sib piv cov khoom siv tshuaj lom neeg ntawm cov pa roj nrog cov ntaub ntawv tiv thaiv ntawm cov khoom.
Polytetrafluoroethylene (PTFE): Tus Qauv Kub rau Tshuaj Inertness
• Cov yam ntxwv: PTFE yog cov tshuaj inert heev, tiv taus txhua cov kua qaub, cov hauv paus, thiab cov kuab tshuaj organic. Nws tsis yog -stick thiab muaj qhov kub thiab txias ua haujlwm.
• Daim ntawv thov: Nws yog cov khoom siv zoo tshaj plaws rau diaphragms, li qub, thiab cov twj tso kua mis lub taub hau thaum tuav cov kev tawm tsam hnyav lossis cov ntsiab lus corrosive.
•Kev txiav txim siab: PTFE muaj zog txhua yam thiab yooj yooj yim piv rau elastomers, thiab nws feem ntau yog qhov siab tshaj - tus nqi xaiv.
Fluoroelastomer (FKM / Viton): Ua kom kub zoo thiab dav siv tshuaj lom neeg
• Cov yam ntxwv: FKM muaj kev tiv thaiv zoo rau qhov kub thiab txias, roj av-raws li roj, roj, thiab ntau yam inorganic acids thiab hauv paus.
• Daim ntawv thov: Feem ntau yog siv rau cov diaphragms thiab valve cov ntaub ntawv nyob rau hauv daim ntaub ntawv uas muaj nruab nrab corrosives thiab siab kub.
Ethylene Propylene Diene Monomer (EPDM): Ua rau Acids, Bases, thiab Chav
• Cov yam ntxwv: EPDM muaj qhov ua tau zoo rau ntau cov kua qaub, cov hauv paus, ketones, thiab dej vapor. Txawm li cas los xij, nws feem ntau tsis tsim nyog siv nrog cov khoom siv roj av lossis cov kuab tshuaj hydrocarbon.
• Daim ntawv thov: Tus nqi -kev xaiv zoo raudiaphragms thiab li qubThaum soj ntsuam cov pa roj uas muaj cov dej noo siab lossis cov khoom siv tshwj xeeb corrosive.
PPS thiab PP: Cov khoom siv rau lub taub hau taub hau
•PPS (Polyphenylene Sulfide): Muaj cov khoom siv zoo heev, siab - qhov kub thiab txias, thiab dav siv tshuaj lom neeg, ua rau nws haum rausiab - twj tso kua mistaub hau.
• PP (Polypropylene): Ib qho kev xaiv qis dua - tus nqi nrog kev ua haujlwm zoo rau qee cov kua qaub thiab cov hauv paus, feem ntau siv rau lub taub hau twj tso kua mis hauv qhov chaw tsis tshua muaj corrosive.
Txheej Txheem Xaiv: Sib piv Gas Chemistry rau Khoom
Ib txoj hauv kev uas yuav tsum tau ua kom ntseeg tau lub neej ntev thiab kev ntseeg tau ntawm cov khoommicro cua twj tso kua misnyob rau hauv corrosive ib puag ncig.
Kauj Ruam 1: Txhais cov roj Chemistry thiab kev ua haujlwm
Cov txheej txheem xaiv yuav tsum pib nrog kev nkag siab meej ntawm qhov nruab nrab:
• Chemical Composition: Txheeb xyuas tag nrho cov khoom ntawm cov qauv roj, suav nrog cov kab ke.
•Concentration: Lub concentration ntawm cov corrosive tus neeg sawv cev ncaj qha cuam tshuam rau cov ntaub ntawv uas yuav tsum tau qib.
• Kub thiab av noo: Qhov kub thiab txias thiab cov av noo siab tuaj yeem ua kom muaj tshuaj tua kab mob, xav tau cov ntaub ntawv muaj zog dua.
Kauj Ruam 2: Tshawb xyuas cov kab kos tshuaj Chemical Compatibility
•Txoj kev: Siv cov chaw tsim khoom siv tshuaj lom neeg cov kab kos. Cov kab kos no muab qhov ntsuas (piv txwv li, A-Zoo heev, B-Zoo, C- tsis haum) rau ntau yam khoom tawm tsam cov tshuaj tshwj xeeb. Tsis txhob cia siab rau kev paub dav dav; ib txwm sab laj rau daim ntawv qhia tshwj xeeb rau covtwj tso kua mis manufacturers cov ntaub ntawv.
Kauj Ruam 3: Ntsuas Mechanical Performance thiab Nqi
•Balance: Tom qab paub meej tias cov tshuaj sib xyaw ua ke, ntsuas cov khoom siv lub zog. Lub diaphragm yuav tsum tuav nws yooj yim thiab qaug zog tiv thaiv ntau lab lub voj voog.
•Tus nqi-Kev ua tau zoo: Xaiv tus nqi tshaj plaws- cov khoom siv tau zoo ua ke uas ua tau raws li ob qho tib si tshuaj tiv thaiv thiab kev ua haujlwm ntawm cov khoom siv, zam tsis tsim nyog tshaj - specification.
Xaus: Kev ntseeg tau los ntawm cov ntaub ntawv xaiv cov khoom
Rau corrosive gas tsom xam, lubme me cua twjtsuas yog raws li kev ntseeg tau raws li nws qhov tsawg kawg nkaus tiv thaiv. Los ntawm kev soj ntsuam cov roj chemistry thiab xaiv cov khoom siv tsis zoo xws li PTFE, FKM, lossis EPDM rau cov khoom tseem ceeb, cov kws ua haujlwm tuaj yeem ua kom qhov tseeb, kev ua neej ntev, thiab kev nyab xeeb ntawm lawv cov khoom siv tshuaj ntsuam xyuas.