Custom-Engineered Printed Circuit Heat Exchanger (PCHE)

Name: Custom-Engineered Printed Circuit Heat Exchanger (PCHE)
Brand: SHPHE
Availability: InStock

Certificates: ASME, NB, CE, BV, SGS etc.

The SHPHE Printed Circuit Heat Exchanger (PCHE) represents a paradigm shift in microchannel thermal management, meticulously engineered for the world's most critical and demanding industrial boundaries. Developed to surpass the physical limitations of conventional shell-and-tube designs in ultra-high-pressure environments, our custom PCHEs integrate advanced photochemical etching and solid-state diffusion bonding to provide unmatched safety, thermal efficiency, and integrity under extreme stress. Initially deployed within high-consequence sectors such as aerospace and nuclear power generation, PCHE technology has completely revolutionized high-density thermal processing. Today, SHPHE brings this breakthrough engineering to mainstream energy transitions—including LNG liquefaction, supercritical CO² power cycles, hydrocarbon processing, and high-pressure hydrogen systems—enabling plants to maximize energy recovery, ensure zero-leakage security, and significantly shrink environmental footprints.

product details

What is Printed Circuit Heat Exchanger?

The SHPHE Printed Circuit Heat Exchanger (PCHE) is a monolithic, solid-state block containing thousands of engineered microchannels designed to maintain continuous thermal control under savage operating conditions. Where traditional gasketed or welded units fail under intense stress, our PCHEs excel in managing ultra-high pressures up to 1000 bar and vacuum-to-cryogenic temperatures ranging from -196°C to 850°C. By optimizing the fluid path via microchannel matrices, we achieve an extraordinarily large surface-area-to-volume ratio. This dense configuration, combined with filler-metal-free diffusion bonding, guarantees immense mechanical strength and outstanding corrosion resistance, making it the definitive choice for offshore platforms and energy-intensive systems that prioritize compactness, longevity, and absolute operational uptime.
How is Printed Circuit Heat Exchanger constructed?

The architecture of an SHPHE PCHE begins with premium, ultra-thin alloy plates—typically Stainless Steel (316L), Duplex Steel, Titanium, or Hastelloy C-276. These sheets undergo proprietary chemical etching to produce intricate, fluid-dynamically optimized microchannel topologies on their surfaces. These individual plates are then stacked with high precision and subjected to a specialized diffusion bonding process in a vacuum furnace under immense pressure and temperature. This causes atomic-level grain growth across the plate interfaces, transforming the separate sheets into a solid, single-block monolithic structure with leak-proof joints that possess the same mechanical strength as the base metal.

The defining advantage of SHPHE's PCHE manufacturing lies in our boundless design and computational flexibility. Our thermal engineers simulate and customize every microchannel pattern, depth, and cross-section to accurately align with your plant's specific volumetric flow rates, thermal approaches, and strict pressure drop allowances. This precise fluidic customization allows each PCHE to execute high-duty multi-fluid stream integration within a single core, smoothly adapting to volatile, high-fatigue industrial cycles.

Industry Applications of ‌Printed Circuit Heat Exchanger

SHPHE custom Printed Circuit Heat Exchangers are extensively deployed across critical nodes of the natural gas, LNG, and deepwater processing sectors, where equipment compactness and extreme pressure security are non-negotiable. Thanks to their diffusion-bonded microchannel arrays, these units serve as highly reliable LNG vaporizers, offshore gas compressors, hydrocarbon chillers, and supercritical CO² recuperators. By handling massive thermal loads within a fraction of traditional spacing and maintaining leak-proof containment under intense thermal cycling, SHPHE PCHEs provide upstream and midstream operators with the ultimate technical guarantee for sustainable, high-efficiency energy processing.

product advantage

Elite Core Compactness

Extreme Space & Weight Reduction: SHPHE PCHEs deliver an ultra-dense thermal footprint that is 5 to 10 times smaller than equivalent shell-and-tube configurations handling the same duty. By packing vast heat transfer areas into a highly condensed volume, we significantly minimize structural steel requirements and total system weight, making it the premier option for offshore topsides, marine vessels, and modular skid packages where every square meter is critical.
Unrivaled Thermal Efficiency

Near-Zero Temperature Approaches: Featuring chemically etched microchannels that create optimal boundary layer conditions, our PCHEs achieve an outstanding thermal effectiveness of up to 98%. This allows for maximum thermodynamic recovery and tight temperature approaches within micro-seconds, drastically elevating your plant’s process efficiency while reducing operational energy overheads.
Solid-State Durability

Ultimate Mechanical Integrity:
Devoid of gaskets, brazing foils, or structural weld seams, the diffusion-bonded block behaves as a single piece of parent metal. This solid-state structural integrity grants the PCHE exceptional durability against thermal shock, pressure fatigue, and corrosive stress, maintaining absolute containment at pressures up to 1000 bar and temperatures reaching 850°C.

How We Engineer and Manufacture Your Custom PCHE

Design

Multidisciplinary Computational Design: Engineering a high-performance PCHE integrates advanced CFD (Computational Fluid Dynamics) modeling for multi-pass thermal hydraulics, precise microchannel geometry optimization, and finite element stress analysis to guarantee safety under intense cycle pressures.

Material Selection

Custom-selected alloys including Austenitic Stainless Steel (SS316L), Super Duplex Steel (2205), pure Titanium, or Hastelloy (C-276), ensuring tailored resistance to corrosion, erosion, and hydrogen embrittlement under extreme thermal duties.
High-precision sheets graded between 0.5–2.0 mm, meticulously calculated to sustain maximum pressure containment without adding unnecessary mass.

Microchannel Etching

Application of a precise, UV-sensitive chemical photoresist film onto automated alloy sheets.
Executing micro-level optical exposure using custom photomasks to transfer calculated microchannel flow paths onto the plate matrix.
Controlled chemical acid baths dissolve the unmasked alloys with micron-level tolerance, creating uniform fluid channels (400 µm to 4mm wide) with zero structural burrs.
Strict multi-stage automated washing to purge residual photoresists and metallurgical particulates.

Diffusion Bonding

Etched plates are systematically cleaned, inspected, stacked in exact flow regimes, and placed into a high-vacuum furnace.
Subjected to uniform uniaxial mechanical pressure (10–30 MPa) and extreme temperatures reaching 70–95% of the material's melting point (e.g., up to 1000°C).
Sustained for hours to allow atoms to diffuse across the plate boundaries, merging separate alloys into a single grain structure with zero filler metal.

Assembly

Automated precision welding of thick-walled inlet and outlet headers to distribute ultra-high-pressure gas/liquid streams seamlessly.
Application of specialized corrosion barriers or insulation blankets for subsea or cryogenic field operations.
High-sensitivity vacuum mass spectrometer testing using Helium gas to verify absolute seal integrity.
Hydrostatic pressure destructive checks and thermal duty validation to certify compliance with ASME, CE, or NB protocols.

Parameter Item	Parameter
Max. Area	8000㎡
Channel Gap	0.4 – 4mm
Design Temperature	-196 ~ 850℃
Max. Design Pressure	1000 Bar
Plate material	304, 316L, 2205, Titanium, C-276

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Products

Custom-Engineered Printed Circuit Heat Exchanger (PCHE)

product details

What is Printed Circuit Heat Exchanger?

How is Printed Circuit Heat Exchanger constructed?

Industry Applications of ‌Printed Circuit Heat Exchanger

Video Demonstration

product advantage

Elite Core Compactness

Unrivaled Thermal Efficiency

Solid-State Durability

‌Product Parameters