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High Turndown Ratio Stainless Steel Liquid Distributor for Packed Columns¹

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Product Description Product DescriptionProduct Description: Metal Liquid Distributor for Packed ColumnsFunction & Purpose:A metal liquid distributor is a critical internal component installed at the top of the packed bed within distillation, absorption, stripping, or reactive separation columns. Its primary function is to uniformly distribute the incoming liquid phase across the entire cross-sectional area of the packing below. Uniform distribution is essential for maximizing the efficiency of mass transfer between the liquid and vapor/gas phases by ensuring intimate contact throughout the packed bed. Poor distribution leads to channeling, reduced effective interfacial area, lower separation efficiency, and increased column height requirements.Design & Construction:Material: Constructed from corrosion-resistant metals suitable for the process environment. Common materials include:Stainless Steel (304, 304L, 316, 316L, 321),TitaniumCarbon Steel (often with internal lining/cladding for corrosion protection)Type: Various designs exist to suit different liquid loads, packing types, and fouling tendencies:Orifice/Pan Distributors: Feature a perforated plate (pan) where liquid flows through precisely sized orifices onto the packing below. May include overflow weirs or risers for vapor passage.Trough Distributors: Utilize open channels (troughs) with notches or holes along the bottom. Liquid flows down the troughs and drips through these outlets. Efficient for medium to high liquid rates.Tube Distributors: Employ a network of pipes with downward-pointing spray nozzles or drip points. Offers good turndown and resistance to fouling.Combination Distributors: Hybrid designs, like troughs feeding orifice plates.Key Features:Precision Orifices/Notches: Sized and positioned to achieve the required distribution density (points per square meter/ft2).Vapor Passages: Integrated chimneys, risers, or large openings to allow vapor/gas to flow upwards freely with minimal pressure drop and without impeding liquid flow.Leveling: Designed for easy installation and leveling within the column to ensure horizontal accuracy for uniform distribution.Modular Construction: Often built in segments for easy installation and removal through column manways.Support: Designed to be self-supporting or supported by beams/rings within the column.Drainage: Ensures complete drainage during shutdown to prevent corrosion or solid accumulation. Product ParametersKey Performance Parameters & Specifications:1.Liquid Load (Capacity) Range:*Minimum Stable Flow Rate (Turndown Capability): e.g., 0.5 m3/(m2h) [~0.02 gpm/ft2] or lower for high turndown designs.*Maximum Flow Rate: e.g., > 100 m3/(m2h) [>40 gpm/ft2] depending on type.*Specify the required operating range and turndown ratio.2.Distribution Quality:*Maldistribution Factor (Mf): Target values typically < 0.05 - 0.15 (lower is better). Often guaranteed by the manufacturer for specific test conditions (e.g., water/air).*Drip Point Density: Number of drip points per unit area (e.g., 100 - 400 points/m2 [~10 - 40 points/ft2]). Higher density generally improves distribution but increases cost and susceptibility to fouling. Depends on packing type and size.3.Design Liquid Properties:*Density (kg/m3 or lb/ft3) - Affects flow through orifices/notches.*Viscosity (cP) - Affects flow resistance and distribution.*Surface Tension (dynes/cm) - Can affect droplet formation and adhesion.*Foaming Tendency - May require special design considerations.*Fouling Potential - Influences material choice and distributor type selection.4.Process Conditions:*Operating Temperature Range (°C or °F)*Operating Pressure Range (barg/psig or kPa)*Corrosive Environment - Dictates material selection.5.Column Specifications:*Internal Diameter (ID): (mm or inches) - Determines the overall size of the distributor.*Packing Type & Size: Influences drip point density requirements and free area needs.*Required Free Area for Vapor Flow: (% of column cross-section) - Must be sufficient to keep vapor velocity and pressure drop low. Typically >15-25%, depending on design and service.*Installation Elevation: Height above the top of the packing bed.6.Material Specifications:*Base Metal Grade (e.g., ASTM A240 316L)*Thickness of Plates/Sheets/Tubes (mm or gauge)*Corrosion Allowance (mm or inches)*Fabrication Standards (e.g., ASME BPVC Sec VIII, EN 13445, customer specs)*Welding Standards & Procedures (e.g., ASME Sec IX)*Surface Finish (e.g., pickled & passivated for stainless steel)7.Physical Characteristics:Approximate Weight (kg or lbs) - Important for installation and support design.Overall Height/Depth (mm or inches)Number of Modules/Segments Production WorkshopProduct TestingProduct ApplicationWhy Choose Metal Distributors?*Durability & Strength: Withstand high temperatures, pressures, mechanical stresses, and cleaning procedures.*Corrosion Resistance: Wide range of alloys available for aggressive chemical environments.*Precision Manufacturing: Allows for highly accurate orifice/notch placement and sizing for superior distribution uniformity.*Long Service Life: Robust construction minimizes maintenance and replacement needs.*Suitability: Essential for demanding industrial processes common in oil & gas, petrochemicals, chemicals, and refining.Packaging & ShippingCompany ProfileJiangxi Jiabing Environmental Technology Co., Ltd., established in 2015, is a high-tech enterprise specializing in the R&D, production, and export of chemical engineering packing and eco-friendly materials. Leveraging the founding team's decade-long expertise in the industry, the company remains committed to providing efficient, durable innovative products and solutions for global clients in chemical engineering, environmental protection, water treatment, and energy sectors.Core Products & Services: The company's product portfolio covers diverse industrial applications: Industrial Packing Series: Metal packings, ceramic packings, plastic packings, and structured packings, widely used in petrochemical plants, gas purification, and distillation processes. Environmental Materials Series: Honeycomb ceramics, molecular sieves, and aquarium filter media, serving exhaust gas treatment, water purification, and aquatic ecosystem optimization. Functional Materials Series: Ceramic balls, catalyst carriers, etc.facilitating efficient energy conversion and environmental remediation. Global Presence & Industry Recognition: With products exported to over 30 countries and regions across Southeast Asia, Europe, North America, and beyond, Jiabing Environmental has established long-term strategic partnerships with renowned chemical enterprises and environmental engineering firms worldwide. Recognized for consistent product quality, efficient delivery capabilities, and comprehensive after-sales services, the company has earned widespread industry acclaim, continuously advancing green industrial practices and sustainable development goals.

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