Kev tshuaj xyuas qhov muag
Welds thiab kev sib txuas
Ua tib zoo tshuaj xyuas cov welds ntawm lub tank lub cev thiab tag nrho cov ntsiab lus txuas nrog cov kav dej, li qub, manholes, thiab lwm yam. Welds yuav tsum tsis tu ncua thiab sib xws, tsis muaj qhov tsis xws luag xws li porosity, slag inclusions, lossis tawg. Sealing gaskets ntawm cov ntsiab lus sib txuas yuav tsum tsis muaj cov cim qhia ntawm kev laus, deformation, lossis puas.
Tank Nto
Tshawb xyuas lub tank saum npoo kom pom cov dej ntws tawm, xws li cov kua dej ntws tawm, crystallization (yog tias lub tank yav dhau los khaws cov khoom ua rau crystallization), los yog xeb stains (yog tias cov dej xau muaj dej los yog cov kua corrosive).
Txawm tias me me xau tuaj yeem tso cov cim pom ntawm lub tank saum lub sijhawm. Rau cov chaw cia khoom siv tshuaj, cov cim no yuav tshwm sim raws li qhov tsis muaj xim lossis cov cim qhia ntawm cov tshuaj corrosion.
Kev Ntsuas Siab
Kev Xeem Siab Zoo
Them lub tank nrog cov pa roj (feem ntau yog cua los yog nitrogen), ces kaw lub inlet valve. Rau cov tso tsheb hlau luam nrog cov qauv tsim qis dua (piv txwv li, atmospheric rau qis- cov tso tsheb hlau luam siab), qhov ntsuas siab feem ntau yog 1.2 txog 1.5 npaug ntawm kev ua haujlwm siab. Rau nruab nrab - lossis siab - lub tso tsheb hlau luam siab, txiav txim siab qhov ntsuas siab raws li cov qauv tsim nyog thiab cov qauv tsim.
Saib xyuas kev hloov siab hauv lub tank siv lub siab - qhov ntsuas qhov siab. Tsis pub dhau lub sijhawm ntsuas qhov ntsuas (feem ntau txiav txim siab los ntawm lub tank loj thiab daim ntawv thov, txij li 1 txog 24 teev), yog tias qhov poob siab tseem nyob hauv qhov kev tso cai txwv (piv txwv li, tsis pub tshaj ib qho nqi ib teev, xws li 0.05 MPa, nrog rau cov nqi tshwj xeeb raws li lub tank tsim qauv), qhov no qhia tau hais tias kev ua haujlwm zoo ntawm lub tank sealing.
Txoj kev xab npum npuas kuj tseem siv tau rau kev tshuaj xyuas ntxiv. Siv xab npum tov rau cov ntsiab lus to xws li welds, pob qij txha, thiab li qub. Qhov tsim ntawm npuas qhia txog qhov xau ntawm qhov chaw ntawd.
Negative Pressure Test (Muaj rau qee lub tso tsheb hlau luam uas xav tau qhov tsis zoo siab)
Tshem tawm huab cua los ntawm lub tank los tsim qhov chaw tsis zoo, ncav cuag qhov ntsuas qhov ntsuas siab (feem ntau 1.2-1.5 npaug ntawm qhov tsim tsis zoo). Saib xyuas lub siab hloov nrog lub ntsuas qhov siab, saib xyuas lub siab rov qab thaum lub sijhawm kuaj.
Yog hais tias lub siab rov qab siab tshaj qhov kev tso cai, nws qhia tau hais tias tank to thiab sealing tsis zoo.
Liquid Level Test (muaj feem xyuam rau cov kua dej cia tank)
Static Liquid Level Observation
Sau lub tank mus rau theem ua kua (piv txwv li, tag nrho lub peev xwm lossis qib cim), tom qab ntawd tso cai rau nws sawv ntsug tsis muaj kev cuam tshuam rau lub sijhawm (xws li 24-48 teev). Saib xyuas seb cov kua dej txo qis. Yog tias cov qib poob qis dua li cov evaporation ib txwm (evaporation yuav tsum raug txiav txim siab rau cov tso tsheb hlau luam qhib; rau cov tso tsheb hlau luam kaw, cov evaporation ib txwm tsis tsim nyog), qhov no qhia tau hais tias tank to thiab sealing tsis zoo.
Dynamic Liquid Level Observation (muaj feem xyuam rau Tanks nrog Filling / Discharging Operations)
Thaum lub sijhawm ua haujlwm puv thiab tso tawm, xyuas seb cov kua dej hloov pauv puas haum rau qhov ntim ntawm cov khoom raug ntxiv lossis tshem tawm. Yog tias cov kua dej nce qeeb dua li qhov xav tau thaum lub sijhawm sau, lossis poob sai dua li qhov xav tau thaum lub sijhawm tso tawm, qhov no yuav qhia tau tias cov kua dej tsis zoo.
Gas Detection (muaj feem xyuam rau lub tank khaws cov roj tshwj xeeb lossis xav kom muaj kev tiv thaiv tsis zoo)
Sniffing Method (muaj feem xyuam rau cov pa roj tsw qab)
Rau cov tso tsheb hlau luam khaws cov pa tsw ntxhiab (xws li ammonia, hydrogen sulfide), ua qhov kev soj ntsuam pom nyob ib puag ncig lub tank perimeter txhawm rau txhawm rau pom cov pa xau. Cov neeg ua haujlwm tuaj yeem siv lawv qhov tsis hnov tsw rau kev kuaj pom ua ntej, txawm tias txoj kev no tsis muaj qhov tseeb thiab ua rau muaj kev pheej hmoo nyab xeeb thaum cuam tshuam nrog cov pa phem.
Gas Detection Instrument Method
Siv cov cuab yeej tshawb nrhiav roj tshwj xeeb, xws li cov khoom siv roj hluav taws xob lossis cov khoom siv tshuaj lom neeg. Txav mus rau qhov kev sojntsuam sojntsuam tshaj qhov muaj peev xwm to ntawm lub tank, suav nrog cov hlua khi, cov ntsiab lus txuas, thiab cov li qub.
Yog tias lub tshuab ntes suab lub tswb, nws qhia tias muaj pa paug ntawm qhov chaw ntawd thiab kev ua haujlwm tsis zoo ntawm lub tank sealing. Txoj kev no tuaj yeem txheeb xyuas qhov tsis tshua muaj siab ntawm cov pa xau, ua rau nws txoj hauv kev txhim khu kev qha rau kev ntsuas kev ruaj ntseg foob.
