Common Problems and Solutions for Leak Detection of DOP High-Performance Liquid Tank FiltersDOP\/PAO High-efficiency Liquid Tank Filter Leak Detection – Common Issues + Directly Applicable Solutions, Engineering-oriented, No Nonsense, Can Be Directly Used for Training \/ Patrol Inspection \/ SOP.
\nI. Upstream Dust Emission Related Issues
\n1. Upstream Concentration Unable to Rise or Unstable
\nPossible Causes
\nInsufficient oil volume in the dust emitter, clogged nozzles, insufficient heating temperature
\nThe dust emission point is too close to the filter, resulting in uneven mixing
\nExcessive air volume, aerosols are diluted
\nSoluci\u00f3n
\nCheck oil level, clean \/ replace nozzles, confirm normal heating
\nMove the dust emission point to a position further upstream in the air duct to ensure uniform mixing
\nIncrease the dust emission volume, wait for the concentration to stabilize for 3-5 minutes before measuring
\n2. 100% Calibration Failure at the Upstream Photometer
\nPossible Causes
\nProbe dirty, pipeline leakage
\nConcentration too high \/ too low, exceeding the instrument’s linear range
\nInstrument not preheated enough
\nSoluci\u00f3n
\nClean probe, check air tightness of sampling tube
\nControl the upstream concentration within 10-20 \u03bcg\/L
\nPreheat \u2265 30 minutes, re-zero \u2192 100% calibration
\nII. Abnormal Leak Detection Reading Issues
\n3. All filters are too high, but not obvious leakage points
\nPossible Causes
\nIncorrect upstream concentration
\nPhotometer not calibrated
\nLarge fluctuations in air volume
\nSoluci\u00f3n
\nRe-do 100% calibration at the upstream
\nConfirm stable operation of the system’s air volume for \u2265 30 minutes
\nReplace clean probe filter
\n4. Sudden Bursting of the Meter (Obvious Leakage)
\nCommon Locations
\nFilter material damage
\nGumming between filter material and frame
\nThe liquid tank seal not fully immersed, gel missing \/ aging
\nGap between frame and static pressure box
\nSoluci\u00f3n
\nSmall leakage in filter material: Special repair glue \/ patch (single area \u2264 38mm, total area \u2264 3%)
\nLiquid tank leakage: Reapply gel, ensure the frame is fully submerged in the gel
\nFrame leakage: Apply sealant or re-tighten
\nIII. Special Issues of Liquid Tank Sealing (Most Common Pitfalls)
\n5. Leakage around the entire liquid tank, but filter material is fine
\nTypical Causes
\nInsufficient liquid tank gel, dried out, with bubbles
\nFilter frame not fully pressed down, tilted
\nLiquid tank deformation, not level
\nSoluci\u00f3n
\nReplenish \/ replace liquid tank sealing gel
\nReinstall the filter to ensure uniform immersion of all four sides in the gel
\nCorrect the levelness of the liquid tank
\n6. Only one corner leaks Reason
\nInsufficient corner gel
\nBorder warping
\nUneven installation force
\nSoluci\u00f3n
\nFocus on replenishing the gel at the corners
\nGently adjust and evenly press down
\nIf necessary, replace the filter
\nFour. Instrument and Operation Issues
\n7. Reading fluctuates, jumping up and down Reason
\nThe probe is too close and touches the filter material.
\nThe scanning speed is too fast.
\nThere is fluctuation in air volume.
\nSolutions:
\nKeep the probe distance at 25-50 mm and do not touch the filter material.
\nSet the scanning speed to \u2264 5 cm\/s.
\nWait until the system stabilizes before measuring again.
\n8. It seems there is no leakage, but the reading is > 0.01%. Reason
\nCalibration error
\nProbe contamination
\nBackground aerosol interference
\nSoluci\u00f3n
\nRe-calibrate the zero position \/ 100%
\nClean or replace the probe
\nConfirm the background is zero in a dust-free state
\nV. Handling principles for\u4e0d\u5408\u683c after leak detection
\nPenetration rate > 0.01% = Leakage
\nSmall area leakage of filter material \u2192 Repair
\nLeakage in the liquid tank \u2192 Adjustment + Add gel
\nAfter repair\uff0c re-test the entire area
\nExceeding repair standards \/ Severe damage \u2192 Direct replacement
\nVI. Simplified summary (can be directly written into the SOP)
\nInconsistent concentration \u2192 Check dusting\uff0c check mixing
\nLocal over-limit \u2192 Check filter material\uff0c check joint\uff0c check liquid tank
\nAll around leakage \u2192 90% is leakage of the liquid tank seal
\nReading fluctuation \u2192 Calibration\uff0c probe\uff0c scanning speed
\nLiquid tank filter = Filter material leak detection + Seal leak detection\uff0c two key points<\/p>","protected":false},"excerpt":{"rendered":"
Common Problems and Solutions for Leak Detection of DOP High-Performance Liquid Tank FiltersDOP\/PAO High-efficiency Liquid Tank Filter Leak Detection – Common Issues + Directly Applicable Solutions, Engineering-oriented, No Nonsense, Can Be Directly Used for Training \/ Patrol Inspection \/ SOP. I. Upstream Dust Emission Related Issues 1. Upstream Concentration Unable to Rise or Unstable Possible […]<\/p>","protected":false},"author":3,"featured_media":4272,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-5202","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-technology"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/posts\/5202","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/comments?post=5202"}],"version-history":[{"count":1,"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/posts\/5202\/revisions"}],"predecessor-version":[{"id":5203,"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/posts\/5202\/revisions\/5203"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/media\/4272"}],"wp:attachment":[{"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/media?parent=5202"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/categories?post=5202"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bacintl.com\/es\/wp-json\/wp\/v2\/tags?post=5202"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}