The main structure of the air supply ceiling ( laminar flow air supply ceiling ) typically has a lifespan of 15\u201320 years, and the core filter components need to be replaced every 1\u20132 years; daily maintenance mainly involves pressure difference monitoring, filter management, and inspection of seals and structure, ensuring cleanliness and stable airflow.
\nI. Service Life (Standard Operating Conditions)
\n1. Main Structure (static pressure box, frame, equalizing plate)
\nDesign life: 15\u201320 years (high-quality hot-dip galvanized \/ stainless steel material)
\nInfluencing factors:
\nMaterial: 304\/316 stainless steel > hot-dip galvanized steel > ordinary steel
\nEnvironment: Humidity, corrosive gases, high dust can shorten the lifespan
\nMaintenance: Regular cleaning, anti-corrosion, and sealing maintenance can extend the lifespan
\n2. Core Filter Components (filters)
\nPrimary efficiency (G4): 3\u20136 months replacement \/ cleaning
\nIntermediate efficiency (F8): 6\u201312 months replacement
\nHigh efficiency \/ ultra-high efficiency (H13\u2013U15): 1\u20132 years replacement (or when the final resistance reaches twice the initial resistance)
\n3. Seals and Wearable Parts
\nSealant strips \/ silicone: 2\u20133 years replacement
\nEqualizing membrane (PTFE): 5\u20138 years (with a temperature resistance of 121\u00b0C, sterilizable)
\nII. Daily Maintenance (Hierarchical Execution)
\n1. Daily \/ Shift (Basic Inspection)
\nVisual inspection: No abnormal noise, vibration, uneven air supply, dust accumulation on the panel
\nInstrument monitoring: Record filter pressure difference, supply air speed, and static pressure box pressure
\nSurface cleaning: Use dust-free cloth + neutral cleaner to wipe the air supply panel and frame
\n2. Weekly (Seals and Connections)
\nCheck sealant strips: Check for aging, cracking, or detachment, and repair in time
\nCheck fasteners: Check if the pressure strips and screws are loose, and tighten (torque 8\u201310N\u00b7m)
\nCheck equalizing membrane: Check for damage, blockage, or deformation
\n3. Monthly (Deep Inspection)
\nFilter: Record pressure difference, if the increase \u2265 30% prepare for replacement
\nStatic pressure box: Internal cleaning (negative pressure suction), check for corrosion, dust accumulation, insulation layer
\nFan \/ FFU: Check operating current, noise, vibration, and grease for bearings
\n4. Quarterly (Performance Verification)
\nWind speed uniformity test: Multiple point measurement, deviation \u2264 \u00b110%
\nLeakage detection: PAO aerosol leak detection, leakage rate \u2264 0.01%
\nElectrical and control: Line, sensor, alarm function verification
\n5. Annually (Comprehensive Maintenance)
\nFilter integrity test, replacement (according to cleanliness level)
\nStructural anti-corrosion, comprehensive replacement of seals
\nThird-party cleanliness and air flow organization testing and report issuance
\nEstablish maintenance file: Record pressure difference, wind speed, replacement, leak detection data
\nIII. Key Points for Filter Replacement
\nTrigger conditions for replacement (satisfy any one of them)
\nTime: High efficiency 1\u20132 years, primary efficiency 3\u20136 months, intermediate efficiency 6\u201312 months
\nPressure difference: Final resistance reaches twice the initial resistance (e.g., H13 initial resistance 250Pa \u2192 500Pa)
\nPerformance: Leak detection leakage, cleanliness not up to standard, wind speed decline
\nReplacement process (anti-pollution)
\nShut down, isolate the area, wear clean clothes
\nOld filter sealed packaging is taken out, 75% alcohol is used to clean the static pressure box
\nNew filter is inspected for leaks before installation, evenly and symmetrically tightened
\nAfter replacement, re-inspect for leaks, measure wind speed, and verify cleanliness
\nIV. Common Problems and Prevention
\nFilter short lifespan: Front-end primary \/ intermediate efficiency failure \u2192 shorten the replacement cycle of the pre-filter
\nLeakage: Aging seals, improper installation \u2192 regular leak detection, standard tightening
\nUnstable airflow: Equalizing membrane blockage, dust accumulation in the static pressure box \u2192 regular cleaning, check equalizing membrane
\nCorrosion: High humidity \/ corrosive environment \u2192 select stainless steel, regular anti-corrosion
\nV. Summary Table of Lifespan and Maintenance<\/p>\n
| Composant<\/td>\n | Service life \/ Replacement cycle<\/td>\n | Core maintenance actions<\/td>\n<\/tr>\n |
| Main structure<\/td>\n | 15-20 years<\/td>\n | Cleaning, anti-corrosion, and sealing inspection<\/td>\n<\/tr>\n |
| Filtre primaire<\/td>\n | 3-6 months<\/td>\n | Cleaning \/ Replacement, Differential Pressure Monitoring<\/td>\n<\/tr>\n |
| Filtre \u00e0 moyenne efficacit\u00e9<\/td>\n | 6-12 months<\/td>\n | Replacement and differential pressure monitoring<\/td>\n<\/tr>\n |
| Filtre \u00e0 haute efficacit\u00e9<\/td>\n | 1-2 years<\/td>\n | Replacement, PAO leak detection<\/td>\n<\/tr>\n |
| Sealing strip<\/td>\n | 2 – 3 years<\/td>\n | Inspection and replacement<\/td>\n<\/tr>\n |
| Uniform flow membrane<\/td>\n | 5-8 years<\/td>\n | Cleaning, repair, and replacement of damaged parts<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n VI. Management Suggestions The main structure of the air supply ceiling ( laminar flow air supply ceiling ) typically has a lifespan of 15\u201320 years, and the core filter components need to be replaced every 1\u20132 years; daily maintenance mainly involves pressure difference monitoring, filter management, and inspection of seals and structure, ensuring cleanliness and stable airflow. I. […]<\/p>","protected":false},"author":3,"featured_media":4831,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[92],"tags":[],"class_list":["post-5225","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry-technology"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5225","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/comments?post=5225"}],"version-history":[{"count":1,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5225\/revisions"}],"predecessor-version":[{"id":5226,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/posts\/5225\/revisions\/5226"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/media\/4831"}],"wp:attachment":[{"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/media?parent=5225"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/categories?post=5225"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bacintl.com\/fr\/wp-json\/wp\/v2\/tags?post=5225"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} |