Tube In Tube Heat Exchanger For Yoghurt, Pastes, Pulp and other viscous Products

AI Overview

A 13-meter tube-in-tube heat exchanger paired with a mono (progressive cavity) pump is a heavy-duty industrial setup designed for continuous heating or cooling of high-viscosity, abrasive, or fiber- and particulate-laden fluids (such as wastewater sludge, digestate, food purees, pulps, or industrial effluents). [1, 2, 3]

Core System Components & Description

Tube-in-Tube (Double-Pipe) Heat Exchanger (13 Meters):

Design: Consists of a concentric layout where a smaller inner tube (often corrugated to boost turbulence and heat transfer) is nested inside a larger outer shell tube.

Flow Configuration: The process fluid flows counter-currently through the inner tube, while the service/heating/cooling medium flows through the annular space between the inner and outer tubes.

Length & Scale: A 13-meter run (frequently modular or multi-pass/series-connected units mounted on a skid frame) provides an extended thermal exchange surface area suited for duty points requiring significant temperature delta (Δ T) without clogging.

Handling Solids: Ideal for fluids containing suspended solids, large particles, or fibers up to tens of millimeters that would choke standard plate heat exchangers. [1, 2, 3, 4, 5, 6]

Mono Pump (Progressive Cavity Pump):

Function: Acts as a positive-displacement feed pump that delivers a steady, controlled, low-shear flow rate of the product medium into the heat exchanger.

Why it fits: Progressive cavity ("mono") technology prevents pulsation and handles abrasive, thick, or high-viscosity slurries smoothly without damaging sensitive cell structures or choking under backpressure. [1]

Key Applications

Wastewater and sewage sludge heating or cooling.

Viscous food-industry processing (sauces, pulps, creams, purees).

Industrial effluent and dye-house waste heat recovery.

Continuous thermal treatment requiring plug-flow characteristics and easy Clean-in-Place (CIP) maintenance