Absorption tower FRP pipeline, absorption liquid transport pipeline

NegotiableUpdate on 05/07

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Nature of the Manufacturer: Producers

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Overview

FRP pipes for absorption towers and absorption liquid transportation pipelines are used to transport absorption media (acid, alkali, slurry, solvents, etc.) inside the absorption tower. They are widely used in chemical absorption, flue gas desulfurization and denitrification, exhaust gas purification and other scenarios.

Product Details

Absorption tower FRP pipeline, absorption liquid transport pipelineFRP pipes used for transporting absorption media (acid, alkali, slurry, solvents, etc.) inside absorption towers are widely used in chemical absorption, flue gas desulfurization and denitrification, exhaust gas purification and other scenarios.

FRP pipeline forming process for absorption tower: continuous mechanical winding forming (pipe diameter ≤ DN1600mm), hand pasting+winding composite forming (pipe diameter>DN1600mm), ensuring uniform wall thickness;

Connection method of absorption liquid transportation pipeline:

Flange connection: FRP flange+PTFE gasket/corrosion-resistant rubber gasket, with good sealing performance and easy disassembly and maintenance (suitable for absorption tower inlet and outlet, pump connection end);

Socket bonding: using FRP adhesive, suitable for branch pipes and small diameter pipelines (working pressure ≤ 0.6MPa);

Threaded connection: only applicable to small diameter pipes with DN ≤ 50mm, requiring FRP threaded joints.

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Selection of FRP pipes for absorption tower:

Medium adaptation: Clearly define the composition, concentration, temperature, and solid content (particle size/ratio) of the absorption solution, and select the resin system accordingly;

Pressure and flow rate verification: Based on the rated pressure and flow rate of the absorption liquid circulation pump, calculate the pipe diameter and wall thickness to ensure that the flow rate is within the range (to avoid scaling or wear);

Connection method matching: flange connection is selected for the inlet and outlet of the absorption tower and pump interface (for easy maintenance), and adhesive bonding is optional for small diameter branch pipes;

Selection of FRP pipe forming process for absorption tower:

Absorption liquid transportation pipeline diameter ≤ DN1600mm: continuous mechanical winding forming (wall thickness uniformity ± 0.5mm, high production efficiency);

Pipe diameter>DN1600mm: Hand lay up+mechanical winding composite molding (to ensure the strength and sealing of large pipelines);

Key requirements: Inner wall roughness Ra ≤ 0.01mm, reducing resistance along the way and lowering conveying energy consumption.

Absorption tower FRP pipeline, absorption liquid transport pipelineCalculation of process conveying parameters:

design flow	Q design=Q rated x (1.15~1.20)	Reserve a margin of 15-20 to cope with flow attenuation caused by process fluctuations, pipeline wear, or slight fouling
work pressure	P design=P pump outlet+Δ P along the way+Δ P locally+safety margin (0.2~0.5MPa)	Along the way resistance Δ P=λ× (L/D) × (ρ v ²/2), local resistance (elbow/valve) Δ P=ξ× (ρ v ²/2), static pressure difference needs to be added
pipe flow velocity	Clear solution (acid/alkali/solvent): 1.5~3.0m/s; Solid liquid (slurry): 2.0~4.0m/s	Below the critical flow rate, scaling/sedimentation is prone to occur, while above the upper limit, energy consumption and wear increase (including solid-liquid flow rate, which must be ≥ the critical suspension flow rate)
Pipe diameter calculation	D=√ (4Q design/(π v × 3600)) (unit: mm), priority should be given to selecting standard pipe diameters (DN25/50/80/100/150/200...)	For example: Q=100m ³/h, v=2.0m/s, calculated D ≈ 133mm, choose DN150 standard pipe (with sufficient margin)

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