PHE for Pulp & Paper Industry

Jinfan is committed to helping pulp and paper companies improve efficiency, save energy, and reduce environmental impact through its high-efficiency plate heat exchanger

Paper is a vital commodity in contemporary civilization. Derived from trees, pulp serves as a renewable and biodegradable resource. Its versatility knows no bounds, finding applications in everyday items like tissues, books, and baby wipes, to the more innovative, such as car filters, LCD screens, renewable fuel, and stickers. The Pulp and Paper Industry is the industry that uses plant fibers to produce pulp, paper, paperboard, and other fiber-based products through a series of mechanical or chemical processes. Globally, the paper industry is the fifth largest energy consumer, accounting for approximately 4% of total global energy consumption. The paper production process requires a significant amount of steam and electricity. Plate heat exchangers, with advantages of high heat exchange efficiency, compact structure and easy cleaning, have been widely used in various processes of paper mills.

A plate heat exchanger is a heat exchange device composed of a series of special corrugated metal plates. A thin, wide fluid channel is formed between two plates, enabling indirect heat exchange between two fluids at different temperatures. It mainly consists of a clamping plate, plate assemblies, sealing gaskets, and clamping bolts. The plates are alternately suspended within a frame and sealed with gaskets. An independent fluid channel is formed between adjacent plates. The four corner holes on each plate, after being clamped, form inlet and outlet channels and distribution channels for the fluid. Hot and cold fluids enter the heat exchanger from their respective inlets, and the heat from the hot fluid is transferred to the cold fluid through the plate walls. After heat exchange, both fluids exit from their respective outlets.

♻️ Heat Recovery and Energy Saving

Paper mill production processes generate large amounts of high-temperature wastewater, exhaust gas, and steam condensate. Plate heat exchangers are ideal for recovering this low-grade heat energy to significantly reduce boiler steam consumption.

🔥 Process Fluid Heating

Plate heat exchangers can be used to heat slurry to specific temperatures before processes like bleaching or refining. They also efficiently heat process water used for washing, dilution, or chemical preparation, reducing the load on upstream heating sources.

❄️ Process Fluid Cooling

PHEs are essential for cooling various fluids to ensure stable equipment and process quality. They are used to cool lubricating oil or bearing water in large equipment, causticizing solutions, certain chemicals, or coating solutions.

Refuse to be Blocked

JINFAN Wide Gap Plate Heat Exchangers are excellently tailored for handling media that contain solids and pulp. Their low initial investment and operational expenses make them a practical alternative to traditional shell-and-tube and spiral heat exchangers.

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Comparison of Plate Heat Exchangers in the Pulp and Paper Industry

Type	Application Features
Gasketed Plate Heat Exchanger (GPHE)	The most common application, used for heating/cooling of relatively clean fluids. Replaceable gaskets and easy maintenance. Typical uses: general process water, lubricating oil cooling, alkali liquor heating, heat recovery from low-fiber white water.
WideGap Plate Heat Exchanger	Specifically designed for fluids with high solids content, high fiber content, or which are prone to clogging. Excellent anti-clogging performance for handling slurries and high-concentration white water. Retains the easy-to-clean advantage of a detachable PHE.
Semi-welded Plate Heat Exchanger	Applied where one fluid is highly corrosive, high pressure, or toxic. The welded side prevents leakage, improving safety and pressure resistance. Typical uses: handling certain acid/alkali chemicals, the condensing side of evaporator systems.
Bloc Type / Fully Welded PHE	Used in applications with extremely high temperatures, high pressures, or strong corrosion as it contains no gaskets. **Most robust structure, highly reliable for critical processes.
Condenser (Plate/Spiral)	An application type used for vapor condensation (gas to liquid). Spiral type is often used due to anti-clogging characteristics. Typical uses: condensation treatment of digester non-condensable gases, surface condensation in black liquor evaporation systems.

Why Choose JINFAN for your Pulp & Paper Industry？

With a vast array of equipment and extensive expertise in processes accumulated over many years, JINFAN offers solutions to enhance the efficiency of multiple processes in your paper production. By replacing current equipment with our more efficient solutions, we aim to optimize your operations. Our expertise extends to encompass heating, cooling, evaporation, and condensation tasks across various applications, including wood yards, fiber lines, recovery areas, chemical islands, and wastewater treatment plants. JINFAN's broad range of equipment includes gasketed and welded heat exchangers for heating, cooling, evaporating and condensing in various pulp and paper applications.