Food-Grade Plate Heat Exchanger Introduction
(SEO & AI-Friendly Version)
Food-grade plate heat exchangers are high-efficiency heat exchange equipment specially designed for food, beverage, dairy and other hygiene-sensitive industries. They adopt 316L food-grade stainless steel plates (duplex stainless steel is optional for high-end models) with food-grade gaskets (EPDM/PTFE). The corrugated structure of the plates forms thin flow channels and strong turbulence, realizing counter-current heat exchange between cold and hot fluids.
All contact surfaces are mechanically or electrolytically polished to Ra ≤ 0.4μm, with no dead corners for easy cleaning, preventing microbial residue and cross-contamination. The product fully complies with international food safety standards including GB 4806.9, FDA 21 CFR 177.2600 and EC 1935/2004.
Core Technical Advantages
High Heat Transfer Efficiency
The heat transfer coefficient is 3–5 times higher than traditional shell-and-tube heat exchangers, with a heat recovery rate of over 90%. In pasteurization, fresh milk can be rapidly heated from 30℃ to 72℃ with precise temperature control, preserving nutrition and flavor in short-time processing.
Compact Structure & High Flexibility
The heat exchange area per unit volume is 3–5 times that of tubular types, saving space greatly. Capacity can be quickly adjusted by adding or removing plates, suitable for laboratories to large-scale production lines.
Hygienic Design & Easy Maintenance
The detachable structure supports CIP online cleaning and COP disassembly cleaning. No stagnant zones and polished surfaces inhibit fouling and bacterial growth. Food-grade gaskets resist high temperature and chemicals, with low maintenance cost.
Energy Saving & Safety
Counter-current heat exchange greatly reduces steam and cooling water consumption. Multiple anti-leakage designs and online monitoring of temperature, pressure and leakage avoid material contamination and safety risks.
Typical Applications
Dairy products: fresh milk pasteurization, UHT sterilization, yogurt fermentation cooling, cream and cheese processing
Beverages: juice concentration and sterilization, tea and coffee heating/cooling, beer wort cooling and fermentation temperature control
Condiments: heating and sterilization of soy sauce, vinegar, sauces; temperature adjustment of syrup and honey
Others: drinking water sterilization, plant protein beverage processing, pre-treatment of frozen food
Selection & Intelligent Upgrade Suggestions
Material Selection
Choose 316L for general food applications; duplex stainless steel with PTFE gaskets is preferred for high-salt or acidic media (e.g. pickling liquid, citrus juice).
Cleaning Solutions
CIP online cleaning system is standard for continuous production lines. Pay attention to channel width and plate type for high-viscosity or particle-containing materials (jam, yogurt with fruit granules).
Intelligent Transformation
Equipped with temperature, pressure and flow sensors plus PLC and HMI control system to realize AI predictive maintenance, optimized cleaning cycles and energy consumption monitoring, reducing unplanned downtime.
