Double Stage Plate Heat Exchanger
A plate heat exchanger (PHE) is a highly efficient thermal transfer device constructed from a series of corrugated metal plates. These plates are assembled and gasketed to form thin, rectangular channels. Hot and cold fluids flow through these alternating channels in a counter-current flow, enabling highly effective heat exchange without the fluids mixing. Renowned for their compact footprint and superior efficiency, plate heat exchangers are the ideal solution for a wide range of liquid-to-liquid and liquid-to-steam applications.
- Product Introduction
1. Product Overview & Core Function
The Two-Stage Plate Heat Exchanger is a precision-engineered system designed specifically for the critical wort cooling process in breweries. Unlike a standard single-stage unit, it integrates two distinct heat exchange processes within a single, compact frame.
Its primary function is to efficiently cool hot wort (e.g., from 95°C+ after the whirlpool) down to precise fermentation temperatures (e.g., 12-20°C) in a single pass. It achieves this by using two separate media:
First Stage (Wort Cooling / Water Heating): Hot wort is pre-cooled by cold, incoming brewing water. This simultaneously cools the wort and heats the water to an ideal temperature (e.g., 80-85°C) for hot liquor tank storage or mashing-in, resulting in significant energy and water savings.
Second Stage (Final Wort Chilling): The pre-cooled wort undergoes final chilling to the exact target temperature using a chilled glycol-water mixture.
Application
Double Stage Plate Heat Exchanger
1. Wort Cooling (Post-Whirlpool to Fermentation)
This is the primary and most critical application. The exchanger is used immediately after the whirlpool to cool the hot wort down to the precise pitching temperature for yeast inoculation.
Process Flow:
Stage 1 (Energy Recovery): Hot wort (95°C+/203°F+) from the whirlpool enters the first stage. It is pre-cooled by cold, incoming brewing water (e.g., 15°C/59°F). This heat transfer cools the wort significantly while simultaneously heating the water to an ideal temperature (e.g., 80-85°C/176-185°F).
Stage 2 (Final Chilling): The pre-cooled wort then enters the second stage, where it is brought down to the exact fermentation temperature (e.g., 18°C/64°F for ales) using a chilled glycol-water solution.
Value Created:
Hot Liquor Production: The now-hot water from Stage 1 is sent to the Hot Liquor Tank, ready for the next brew cycle (e.g., mashing-in, cleaning), drastically reducing energy costs for water heating.
Cold Break Formation: The rapid cooling promotes the formation of cold break, improving beer stability and clarity.
Efficiency & Speed: The entire cooling process is fast, efficient, and occurs in a single, continuous pass.
Features
Double Stage Plate Heat Exchanger
Maximized Energy Recovery: The first stage recovers thermal energy that would otherwise be wasted, drastically reducing energy consumption for heating water and cooling wort.
Superior Product Quality: Gentle and rapid cooling promotes the formation of "cold break" (coagulation of proteins), which is essential for beer stability and clarity. It also minimizes the risk of contamination and thermal stress on the wort.
Water Conservation: By pre-heating the brewing liquor, the system significantly reduces the demand for external hot water heating, leading to substantial water savings.
Compact Footprint: A single, skid-mounted unit combining two stages saves considerable space compared to two separate heat exchangers.
Process Optimization: Enables a faster, more consistent, and controllable cool-down to fermentation temperature, streamlining the entire brewing cycle.
Structure
Double Stage Plate Heat Exchanger
Parameter
Double Stage Plate Heat Exchanger
| Category | Parameter | Standard / Typical Specification |
|---|---|---|
| General Performance | Heat Transfer Duty | Customizable for brew lengths from 5 HL to 200+ HL per hour |
| Log Mean Temperature Difference (LMTD) | 1 - 2 °C (in the glycol stage) | |
| Stage 1 (Water Cooling): - Wort Inlet Temperature - Wort Outlet Temperature - Water Inlet Temperature - Water Outlet Temperature |
95 - 99 °C (203 - 210 °F) 40 - 50 °C (104 - 122 °F) 10 - 15 °C (50 - 59 °F) 80 - 85 °C (176 - 185 °F) |
|
| Stage 2 (Glycol Cooling): - Wort Inlet Temperature - Wort Outlet Temperature - Glycol Inlet Temperature |
40 - 50 °C (104 - 122 °F) 12 - 20 °C (54 - 68 °F) -2 to +2 °C (28 - 36 °F) |
|
| Pressure & Design | Design Pressure (per frame) | 10 bar (150 psi) standard |
| Maximum Pressure Drop (per fluid side) | < 1.0 bar (15 psi) | |
| Materials of Construction | Heat Transfer Plates | AISI 316L Stainless Steel |
| Plate Surface Finish | Electropolished, Ra ≤ 0.5 µm (20 µIn) | |
| Gaskets (Wort/Water side) | FDA Nitrile Rubber (NBR) | |
| Gaskets (Glycol side) | EPDM | |
| Frame & Connections | Carbon steel with sanitary epoxy coating; Optional AISI 304/316 SS | |
| Connections & Standards | Port Connections | Sanitary Tri-Clamp (standard sizes: 2", 3", 4") |
| Design Standards | 3-A Sanitary Standards, EHEDG compliant | |
| Physical Attributes | Unit Footprint | Compact, skid-mounted design. Exact dimensions are model-specific. |
Advantages
Double Stage Plate Heat Exchanger
- Uncompromising Commitment to Quality
- Your Most Reliable Partner in the Industry
- Advanced Manufacturing and Process Optimization
- Comprehensive After-Sales Support, Ensuring Your Peace of Mind
- Powered by Over 15 Years of Proven Expertise
- 100% Sanitary & Food-Grade Design for Superior Cleanability
- Delivering the Highest Quality and Most Reliable Equipment
- Driving Continuous Innovation to Strengthen Our Competitive Edge
- Developing Innovative Solutions for Evolving Market Demands
- Supporting Your Growth with Reliable Equipment and Exceptional Service
Packing and Delivering
Double Stage Plate Heat Exchanger
Certificate
Customer Review
Double Stage Plate Heat Exchanger
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