{ "@context": "https://schema.org", "@type": "Product", "name": "Metal Ripple Wire Mesh Packing", "description": "Corrugated wire gauze structured packing for high-efficiency vacuum and fine-chemical distillation. 250AX/500BX/700CY, SS304/316L/Ti/Hastelloy, low HETP and low pressure drop.", "brand": {"@type": "Brand", "name": "FXSINO"}, "sku": "FS-MWMP", "image": "/storage/uploads/images/202610/24/IMG_MWMP_HERO.jpg" } Figure 1: Corrugated wire gauze discs (250AX / 500BX / 700CY) — highest theoretical plates per meter among industrial random & structured packing. Metal Ripple Wire Mesh Packing | Corrugated Wire Mesh Distillation Packing Supplier Engineer's Brief: Metal ripple wire mesh packing is a disc-type structured packing made from fine stainless wire gauze, crimped into corrugated sheets and stacked with adjacent layers crossed 90°. Capillary action on the mesh holds a uniform thin liquid film, so mass transfer stays high while gas-path resistance stays low. It is the default choice for vacuum distillation, thermo-sensitive and hard-to-separate mixtures — not for dirty, scaling or heavily fouling service. FXSINO manufactures 125Y–700Y/X discs in SS304/316L/Ti/Hastelloy, cut to tower ID with manway-assembly segments. 1. What "Ripple Wire Mesh" Actually Means "Ripple" = corrugated. "Wire mesh" = woven gauze, not perforated sheet. Two different product families get confused: • Wire mesh corrugated packing — fine gauze (wire Ø 0.10–0.20mm), highest efficiency, low liquid hold-up, fragile against fouling. • Orifice/plate corrugated packing — stamped sheet with punched windows, more robust, lower cost, slightly higher HETP. See plate-type structured packing. Wire mesh version is the "precision instrument" of the two — best when you need stages, not throughput. Figure 2: Woven gauze + corrugation — adjacent sheets set at opposite angles; layers crossed 90° in the tower. 2. Standard Models & Geometry Model Surface area(m²/m³) Void (%) Angle Theo. plates(/m) HETP(mm) Max F-factor 250 (AX) 250 95–98.5 30° 2.5–3 100 2.5–3.5 500 (BX) 500 90–97 30° 4–5 200 2.0–2.4 700 (CY) 700 85–96 45° 8–10 333–400 1.5–2.0 Generic reference data (0.12mm wire, SS). X = layers crossed 90°; Y = layers parallel-oriented. HETP/plates vary with system, reflux ratio and distributor quality — replace with FXSINO test values before publication. [5,7,13](@ref) 3. Why It Wins in Vacuum Distillation • Low pressure drop — gas flows through open mesh channels; ΔP per theoretical plate is far below random packing. • Small liquid hold-up — less residence time, less thermal degradation of heat-sensitive products. • High plates/meter — CY type reaches 8–10 theoretical plates/m; short bed height for the same separation. • Good at low liquid load — efficiency does not collapse when reflux drops; ideal for batch and fine-chemical runs. • Weak scale-up effect — lab data transfers to large column more predictably than random packing. 4. Where It Should NOT Go • Suspended solids / slurry — mesh clogs, cannot be mechanically cleaned easily. • Heavy fouling / polymerization on surface — wire diameter is thin, attack area is large. • Strong corrosive + high chloride at temperature — verify alloy; thin wire has less corrosion allowance than plate packing. • Very large diameter with cheap-budget constraint — orifice plate packing often gives better $/stage. For dirty scrubbers or hot acidic random service, step down to plastic random packing, ceramic Raschig or metal super Raschig. 5. Material Selection Material Service window Notes SS304 / 304L Clean organics, mild aqueous Economy default SS316L Weak acid, chloride trace Most common spec 321 / 310S Higher temp, oxidation risk Verify max wall temp Titanium Gr.2 Chloride / wet Cl₂ Premium, lightweight Hastelloy C / Monel Aggressive specialty chemicals Pharma / electronic grade Wire Ø 0.10–0.20mm; corrugation height 5–20mm depending on model. [2,4,12](@ref) Figure 3: Adjacent discs crossed 90°, diameter slightly under tower ID, wall gap sealed to stop bypass. 6. Installation Rules (Easy to Ruin, Hard to Debug) • Clean tower first — any debris in mesh = permanent efficiency loss. No welding slag, no packing film left inside. • Disc diameter — slightly under ID (project-specific clearance), wall gap sealed with high-temp gasket or expanded PTFE strip. • Cross orientation — upper/lower disc corrugation directions at 90°; never stack same-way. • Level & align — packing axis must match tower axis; tilt causes wall channeling. • Don't compress — hand-set, no hammering. Mesh deforms, channels shrink, efficiency drops. • Distributor above — wire mesh needs ≥90 drip points/m²; pair with trough or orifice-pan distributor. Support below must clear gas path: camel-hump grid. Reference: HG/T 21556 / HG/T 4374 practices; bed limiter only at top, not compression. [1,3,11](@ref) 7. Application Map Service Recommended model Why High-vacuum, thermo-sensitive 500BX Low ΔP, low hold-up, <7kPa typical Isomer / isotope separation 700CY 8–10 plates/m, ultra-fine cut Fine chemical, moderate vacuum 250AX / 350Y High capacity, fewer stages Pilot / batch distillation BX + CY mix Flexible reflux, fast stabilization Deep bed / tall column + redistributor per section Recover wall-flow every 15–20 stages Figure 4: Finished disc — crimp uniformity and edge banding decide long-term stability; inspect before shipping. 8. FAQ Q: BX vs CY — which do I pick? A: BX for general vacuum and throughput-sensitive runs; CY when you need maximum stages in a short bed (isomers, high-purity solvents). CY has higher ΔP per plate, so don't over-specify it for high-capacity columns. Q: Can wire mesh packing be washed or decoked? A: Light soluble fouling can be solvent-flushed, but polymer/coke on thin wire usually means replacement. Design with inlet filtration and pre-flash to protect the bed. Q: How many stages can one tower section give? A: A 1m bed of 500BX ≈ 4–5 theoretical plates; 700CY ≈ 8–10. Real column efficiency also depends on distributor DQ and wall sealing — send reflux ratio and target purity for a proper stage count. Request a Wire Mesh Packing Quote FXSINO is a manufacturer of metal wire mesh structured packing and tower internals — 250AX/500BX/700CY discs, custom alloys, manway-segment fabrication, plus distributors, support grids, bed limiters and redistributors. Send tower ID, service fluid, pressure and target stages — we return model, bed height and hydraulic check. Email: jackieqiu9202@gmail.com  |  +86 18507999558

  { "@context": "https://schema.org", "@type": "Product", "name": "Tower Support Grid", "description": "Packing support grid design rules and replacement procedure for packed towers: grating, orifice plate and camel-hump beam support. Covers free area, load calculation, levelness and manway assembly.", "brand": {"@type": "Brand", "name": "FXSINO"} } Figure 1: Support grid is the foundation of the packed bed — if free area is lower than the packing void fraction, the grid itself becomes the flooding point. Tower Support Grid Design and Replacement Procedure Engineer's Brief: A support grid must do three things at once — carry the bed weight, let gas through without becoming a bottleneck, and keep packing from dropping. Rule of thumb: free area of the grid must exceed the void fraction of the packing above it. Plain bar grating works for clean random packing; camel-hump (beam-type gas-spray) support is the better choice for DN1500+ towers, high liquid rate or dirty service. FXSINO fabricates support grids to tower ID, packing type and project load data — not catalog "fits all" plates. [10](@ref) 1. What a Support Grid Actually Has to Do • Carry static + hold-up load — packing bulk density × bed height + liquid retained in voids. [1](@ref) • Free area > packing void fraction — otherwise gas chokes at the grid, ΔP spikes, premature flooding. [5](@ref) • Block size < packing nominal size — 50mm rings → grid gap <50mm, or add screen overlay for 25mm / saddles. [12](@ref) • Resist corrosion + vibration — weld joints, support ring interface, thermal cycles. • Stay level — tilt sends liquid to one wall, lower bed wets unevenly. [6](@ref) 2. Support Grid Types 2.1 Bar Grating (flat grid) Welded bars or punched plate strips. Cheap, simple, good for small towers and clean service. Free area typically 80–90%; gas comes straight up through gaps so it can channel at the bed bottom if gaps are uneven. 2.2 Orifice / Perforated Plate Punched holes or slots. Only for larger packing or with overlay mesh — small orifices clog in fouling service. Not ideal as primary support for fine random packing. 2.3 Camel-Hump / Beam-Type Gas-Spray Support Arched beams with side gas ports and bottom liquid clearance. Gas enters sideways into the bed, liquid drops through the bottom gap — two separate paths, so less entrainment and lower ΔP. Standard for DN1500+ scrubbers, desulfurizers and high-L absorption columns. [7,13](@ref) Figure 2: Beam-type support — gas from side ports, liquid from bottom clearance; modular beams assemble through the manway. 3. Design Parameters (Check Before You Specify) Parameter Rule / reference value Why it matters Free area ≥80% random / 90–95% structured Must exceed packing void fraction [1,11](@ref) Load rating bed weight + hold-up × SF ≥1.5 Ceramic beds need reinforced beams [1](@ref) Opening size < min packing dimension Prevent drop-through / add mesh overlay [12](@ref) Levelness ≤3 mm/m (project spec wins) Tilt → wall flow / maldistribution [6](@ref) Grid ΔP low-resistance design target Camel-hump ~60–200 Pa typical [13](@ref) Material CS / 304 / 316L /双相 / Ti Match column atmosphere + liquid Values are generic design references; final free area and beam stress must come from FXSINO project calculation against your packing bulk density and bed height. [10](@ref) 4. Load Calculation (Simplified) Total face load on the grid: q ≈ ρbed · H · km  +  ε · H · ρL · hhold  +  qadd • ρbed = packing bulk density (ceramic > metal > plastic) • H = packed bed height • ε = packing void fraction • hhold = hold-up fraction (rises near flood) • qadd = distributor weight, pressure pulsation, thermal swing Beam deflection limit is usually ≤ L/300. Undersized grid sags, packing surface dips, liquid pools at the low side. [1](@ref) 5. When to Replace a Support Grid • ΔP climbs but packing looks fine — grid is the bottleneck. • Local bed settle / tilt — beam sag or support ring corrosion. • Welds cracked at support ring — thermal cycling or vibration. • Hole enlarge / bar wear — solids erosion or corrosion. • Retrofit to camel-hump — old flat plate can't pass the new vapor rate. Figure 3: After unloading packing — check support ring weld, beam deflection and corrosion at wall interface before reusing the grid. 6. Replacement Procedure (Step-by-Step) 6.1 Isolation & Unloading • Lock-out/tag-out, depressurize, drain liquid. • Purge / wash if medium is acidic, toxic or fouling. • Remove packing from top down — don't dig from bottom, don't stand on the grid. • Vacuum fines and broken fragments; check if small packing dropped through gaps. 6.2 Inspect the Seat, Not Just the Grid • Support ring / ledge: corrosion, weld crack, level continuity. • Shell interface: gap where slurry can sit → crevice corrosion. • Beam sag: straight edge across span; >3 mm/m is a re-level or replace signal. [6](@ref) • Old gasket / sealant: remove before new grid seats. 6.3 Fit & Level the New Grid • Modular camel-hump beams: enter through manway, seat on support ring, align locating lugs. • Grating sections: symmetric placement, no forced fit, uniform seam gaps. • Level check with spirit level on a straight edge — correct with shims, not by bending bars. • Bolt / tack weld per drawing; for corrosive service use continuous weld or sealed gasket at wall. [3](@ref) 6.4 Re-charge Packing • Confirm distributor drops line up with grid free area, not on a beam. • Dump packing evenly, don't pile one side. • If bed is deep, set bed limiter and intermediate redistributor before closing. 6.5 Commissioning Check • Start with gas only, low load — watch ΔP trend. • Ramp liquid gradually; sudden full-rate flood can lift light grids. • Compare ΔP vs design; if high at low load → grid still restricted or distributor misaligned. Figure 4: Grid seated, leveled and shimmed on the support ring — verify free area is not blocked by the shell weld or distributor stub. 7. Grid Type Selection Table Type Free area Fouling Bed load Use case Bar grating 80–90% Medium Moderate Small tower, clean random packing Perforated plate 60–80% Poor High Large packing / overlay mesh Camel-hump beam ≥90% [10](@ref) Good High DN1500+ scrubber, desulfurizer PP/RPP grid 80–90% Good Light Cool corrosive wash tower 8. FAQ Q: Can I reuse the old grid when changing packing? A: Only if free area still exceeds the new packing void fraction, beams are level within spec, and welds are sound. Moving from 50mm rings to 25mm or structured packing often forces a grid change — gaps are too wide or free area too low. Q: Why is my ΔP high right above the grid? A: Classic sign the grid is the bottleneck — side port blocked, bottom clearance bridged with scale, or plate free area < packing void. Camel-hump retrofits usually drop ΔP 30–50% in that zone. Q: Do I need a bed limiter above the support grid too? A: Not at the bottom — the grid already holds the bed. A hold-down plate goes at the top of the bed to stop fluidization or lift under high vapor velocity. Specify the Support Grid Before You Reload the Bed FXSINO is a manufacturer of packed-column internals — camel-hump support grids, bar grating, plastic random packing, metal packing, distributors, bed limiters and redistributors. We run free structural load calculation per project and supply laser-cut, level-tested grids for manway assembly. [10](@ref) Email: jackieqiu9202@gmail.com  |  +86 18507999558

  { "@context": "https://schema.org", "@type": "Product", "name": "Ceramic Structured Packing for High-Temperature Columns", "description": "Ceramic corrugated structured packing (250Y/350Y/500Y) for hot corrosive service. Covers max temperature, thermal shock, acid resistance, support load and installation rules.", "brand": {"@type": "Brand", "name": "FXSINO"} } Figure 1: Ceramic structured packing (250Y/350Y corrugated sheets) — used where metal fails from hot acid and plastic melts. Ceramic Structured Packing for High-Temperature Columns: What to Know Engineer's Brief: Ceramic structured packing combines the high separation efficiency of corrugated-sheet geometry with the thermal and chemical resistance of engineered ceramics. It fills the gap between ceramic random packing (low efficiency, high HETP) and metal structured packing (fails above ~400°C or in hot concentrated acid). FXSINO manufactures and custom-fabricates ceramic structured modules in standard 250Y/350Y/500Y geometries, with optional acid-resistant glaze for aggressive services. 1. Where Ceramic Structured Packing Fits Three conditions define the "sweet spot" for ceramic structured packing: • Temperature >200°C — where PP/PE/CPVC melts and metal begins oxidation or acid attack. • Corrosive medium — hot H₂SO₄, HNO₃, HCl, HF, or mixed acid vapor that destroys stainless steels. • Need for low HETP — random packing gives 0.5–1.5m HETP; ceramic structured can reach 0.2–0.4m in the same tower. Outside this window, metal or plastic options are cheaper and easier to handle. Ceramic is a specialty solution, not a default. Figure 2: 45° corrugated channels create cross-flow mixing; glazed surface reduces wetting resistance and fouling adhesion. 2. Temperature & Thermal Shock Limits Engineered alumina and silica-based ceramics used in tower packing typically handle: Ceramic type Continuous service Peak / short-term Thermal shock resistance Standard porcelain ~200–250°C ~300°C Poor — avoid rapid ΔT >50°C High-alumina (95%) ~400–450°C ~600°C Moderate — tolerate 100°C/min ramp Silicon carbide (SiC) ~800–1000°C ~1200°C Excellent — used in thermal oxidizers Quartz / fused silica ~1000°C+ ~1200°C Excellent — near-zero thermal expansion Values are generic ceramic engineering data; confirm exact grade with FXSINO batch cert for your service temperature. 3. Chemical Resistance by Acid Type Medium Porcelain High-alumina SiC Hot H₂SO₄ (>70%, >150°C) Excellent Excellent Excellent Hot HNO₃ (>50%, >100°C) Excellent Excellent Good HCl / Cl₂ (wet, hot) Good Excellent Excellent HF / fluoride Poor (attacks SiO₂) Poor Poor Alkaline (NaOH >10%) Poor (glaze attack) Moderate Good 4. Mechanical & Installation Constraints • Weight: Ceramic density ~2.3–2.6 g/cm³; a 1m bed of 250Y weighs 400–600 kg/m². Support grid must be rated for 2–3× the load of equivalent metal packing. • Brittleness: Modules crack under point load. Use soft gaskets between tiers; never drop or slide modules during installation. • Thermal expansion: Ceramic CTE is ~4–8×10⁻⁶/K (lower than steel). Allow slip joints at shell interface; do not rigidly clamp between metal flanges. • Vibration: High gas velocity + brittle material = fatigue risk. Add a bed limiter with ceramic-compatible standoffs (PTFE or ceramic pads, not steel). • Distribution: Structured packing demands uniform liquid entry. Pair with a trough or orifice-pan distributor sized for ≥90 drip points/m². Figure 3: Stacked ceramic modules on reinforced support grid — note soft interface pads and alignment guides to prevent edge chipping. 5. Ceramic Structured vs Alternatives Option Max temp Acid resistance HETP (m) Cost index Ceramic random (Raschig/saddle) ~200°C Good 0.6–1.2 1× (baseline) Ceramic structured (250Y) ~400°C (alumina) Excellent 0.2–0.35 3–5× Metal structured (SS316L) ~400°C Limited by alloy 0.15–0.3 2–3× PTFE/PVDF structured ~150–200°C Excellent 0.2–0.4 5–8× SiC structured ~1000°C Excellent 0.2–0.35 10–15× Cost index relative to ceramic random packing; actual quote depends on module size, ceramic grade and volume. 6. Sizing Data (Generic Reference) Model Surface area (m²/m³) Void fraction (%) Bulk density (kg/m³) Typical HETP (m) 125Y 125 ~98 ~350 0.4–0.6 250Y 250 ~97 ~450 0.2–0.35 350Y 350 ~95 ~550 0.15–0.25 500Y 500 ~93 ~650 0.1–0.2 Replace with FXSINO measured values before publication; HETP varies with system, F-factor and L/G ratio. Figure 4: Module stacking sequence — each tier offset by 90° to promote cross-mixing; soft pads between metal flanges prevent stress concentration. 7. FAQ Q: Will ceramic structured packing crack from thermal shock during startup? A: Standard porcelain can crack if ΔT exceeds 50°C/h. High-alumina and SiC grades tolerate 100–200°C/h. Always follow a controlled heat-up curve; insulate the shell to reduce radial gradient. Q: Can I use ceramic structured packing in a vacuum column? A: Yes, but pressure drop per stage is slightly higher than metal wire-gauze packing. For deep vacuum (<50 mbar) with tight HETP, compare against metal wire mesh structured packing if temperature permits. Ceramic is preferred when hot acid rules out metal. Q: How does ceramic structured compare to ceramic random packing in the same tower? A: Structured gives 2–4× better separation per meter, lower pressure drop per theoretical stage, and more predictable hydraulics. Random packing is cheaper and tolerates more solids, but you need 2–3× the bed height to get the same number of stages. Specify Ceramic Structured Packing for Your Hot Corrosive Column FXSINO is a manufacturer of ceramic and metal tower packing, structured packing, and column internals. We fabricate ceramic structured modules to your tower ID, ceramic grade (porcelain/alumina/SiC), and corrugation angle. Full package includes support grids, distributors, bed limiters and redistributors. Email: jackieqiu9202@gmail.com  |  +86 18507999558