Cov Qauv Nrhiav Tau
1. Sab hauv Kev Ua Ntej
Qhov ntsuas hluav taws xob infrared:
Measure the temperature of the valve stem or downstream pipe (150 mm from the valve) 4–6 hours after closure. A temperature >70 DEGRUGE qhia tias xau dej.
NCO TSEG: Tshaj tawm kev cuam tshuam los ntawm qhov chaw nyob ze (piv txwv li, chav dej khov).
Kev Kuaj Ultrasonic:
Siv sensors ntawm cov ntsiab lus tsim qauv (A, B, C) txhawm rau tshawb xyuas cov suab muaj tsheb khiav nrawm los ntawm kev tsom xam.
Siab Tso Tawm:
Saib cov dej ntws qis dua tom qab kaw lub valve. Kev txhawb nqa lub siab poob lees paub meej pem toast.
2. Sab Nraud Taum Tawv Siab Cim
Kev kuaj ntshav / tshuaj ntxuav tes:
Soj ntsuam pom kev yooj yim ntawm pob qij txha lossis thov cov dej xab npum tiv thaiv thaj chaw; Npuas qhia cov ntsiab lus xau.
Kev Tshawb Nrhiav Tau Ultrasonic:
Kev ntes cov ntsiab lus siab ntawm cov ntsiab lus los ntawm kev xaiv nruab nrab uas siv cov khoom siv hluav taws xob.
Valve Xyuas:
Perveurize lub valve thiab siv tracer gases (piv txwv li, nitrogen) lossis cov kev sim npuas los txheeb xyuas qhov tsis xws luag zoo li tawg.
Kev Txiav Txim Siab Ua Haujlwm
Rau sab hauv xau:
Hais cais kev cuam tshuam ib puag ncig ib puag ncig (piv txwv li, kev ntxhov siab).
Paub meej tias pom nrog cov neeg ua haujlwm saib xyuas kom tsis txhob muaj kev tsis tseeb.
Rau sab nraud tokage:
Nthuav cov dej ua kom zoo dua thaum lub sijhawm ua haujlwm thiab lub sijhawm muaj kev phom sij ntev.
Ua raws cov qauv txheej txheem ultrasonic ntsuas kom txo cov kev cuam tshuam ntawm lub suab.
Cov lus tseem ceeb
Sab hauv xau: Tsis tiav kev sib khi ntawm cov khoom sib xyaw sab hauv (piv txwv li, lub rooj zaum ntawm lub rooj zaum thiab rooj zaum thaum kaw.
Kev xau sab nraud: Nruab nrab khiav ntawm cov ntsaws ruaj ruaj (piv txwv li, Flange sib txuas, valve stems).