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High Efficiency Heat Exchanger | Heat Exchanger for Marine Industry
The advantage of a plate and frame heat exchanger over a tubular heat exchanger is the use of corrugated plates to increase the liquid turbulence to a higher Reynolds number. The liquids counter-flow within the PHE, promoting heat transfer efficiency that is typically several times higher than a shell & tube heat exchanger.
Available in welded or gasketed designs for various applications such as marine oil coolers, HTST (high temperature, short time) systems, or waste heat recovery, our plate and frame heat exchangers can help you achieve cost-savings. With high efficiency designs, low initial investment, compact installation, and simple maintenance, the heat exchangers that we provide are the ideal solution in many industrial applications.
Tubular Heat Exchanger & Plate Heat Exchanger Comparison
Each plate heat exchanger, spiral heat exchanger, or shell & plate heat exchanger is manufactured by DHP for your application to ensure compact size, adequate heat transfer, and lower cost. With an in-house technical engineering team, custom engineered applications are also available for unique applications that fall outside of our typical product offerings. Other manufacturer’s standard gasketed heat exchangers can typically support 20 to 30 bar. However, our heat exchangers with our patented “Double Sealing” gasket can support high operating pressures up to 50 bar and temperatures up to 250°C.
Conventional Gasket (Left); Patented Double Sealing Gasket (Right)
| Maximum Operating Temperature | 250°C |
| Maximum Operating Pressure | 20 bar (high pressure 50 bar) |
| Plate Materials | Titanium, SUS 304, SUS 316L, Hastelloy, etc. |
| Gasket Materials | NBR, VITON, Hypalon, Butyl, FPM, EPDM, etc. |
| Frame Materials | Carbon Steel, SUS 304, SUS 316 |
Plate Heat Exchanger Layouts | Single Pass | Multi Pass | Single & Multi Pass
PHEs in single pass, multi pass, or single pass & multi pass heat exchanger layouts are available depending on the specific application requirements.
(Max 40 bar) mm | (max) mm | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
PHE | Single Pass Layout
Single Pass heat exchanger units have a counter flow layout and the nozzle is mounted on a fixed frame which allows for easy maintenance and an increase or decrease in capacity.
Single Pass Layout
PHE | Multi Pass Layout
The advantage of a Multi Pass heat exchanger unit is that the heat transfer can be increased significantly by designing both the hot side and cold side to be Multi Pass. However, the piping of the nozzle in the movable frame would need to be corrected when expanding the heat exchanger capacity.
Multi Pass Layout
PHE | Single & Multi Pass Layout
Single Pass & Multi Pass heat exchanger units are suitable when there is a large difference between the inlet and outlet temperatures and the allowable pressure drop between the hot side and cold side is also different. The performance and heat transfer coefficient of this heat exchanger can be enhanced by making one side a Single Pass and the other side a Multi Pass.
Single Pass & Multi Pass Layout
Marine & Shipbuilding PHEs | Sea Water, High Temp Fresh Water, Fresh Water, Lube Oil
Marine & Shipbuilding | Plate Heat Exchanger Applications
Project Experience | Heat Exchangers in Power Plant, Petrochemical, Desalination
Korea Hydro & Nuclear Power
Site: South Korea
Project: Shin-Kori Nuclear (SKN) # 3 & 4
Delivery: September 2010
Model: DX-50DSHV-1P-421
Sets: 6 Sets
Size: 3,980mm x 1,390mm x 2,503mm
Doosan Heavy Industries & Construction
Site: U.A.E.
Project: Jebel Ali M-Station (Power Plant and Desalination Complex)
Delivery: June 2008
Model: DX-146H-1P-237
Sets: 6 Sets
Size: 1,960mm x 600mm x 1,898mm
Doosan Heavy Industries & Construction
Site: Muscat, Oman
Project: Barka II Combined Cycle Gas Turbine Power and Desalination Plant
Delivery: March 2008
Model: DX-36MH-1P-345
Sets: 2 Sets
Size: 3,430mm x 1,125mm x 2,813mm
Arabian Bemco Contracting Co. Ltd.
Site: Fujairah, U.A.E
Project: Fujairah Power Plant Extension
Delivery: December 2007
Model: DX-30S-1P-129
Sets: 3 Sets
Size: 1,620mm x 1,026mm x 1,877mm
Al-Waha Petrochemical Company (Sahara Petrochemicals Company & LyondellBasel)
Site: Saudi Arabia
Project: Propane Dehydrogenation (PDH) Unit and Polypropylene (PP) Plant
Delivery: August 2007
Model: DX-36MH-1P-459
Sets: 12 Sets
Size: 3,980mm x 1,125mm x 2,813mm
POSCO E&C
Site: Chile
Project: Angamos Thermoelectric Power Plant
Delivery: May 2009
Model: DX-36DSHV-1P-373
Sets: 3 Sets
Size: 3,460mm x 1,125mm x 2,193mm
Leading PHE Manufacturer Quality Assurance | ASME, BV, DNV Certificates
DHP’s in-house quality assurance system and strict quality inspection program using the latest equipment ensures that our products are delivered at the utmost quality. The entire manufacturing process starting from the warehousing of raw materials, to the stamping and machining of the heat exchanger plates, painting, and to the final inspection is controlled in-house to ensure quality products.
In 2007, DHP completed a full-size test facility for research and development of new products, evaluate heat transfer capacities, and to test for internal and external leakages from pressure surges. DHP’s manufacturing facility is ISO 9001:2008 and ISO 14001:2004 certified and have approval certificates from classification societies such as ASME, BV, and RINA.
Plate Heat Exchanger Factory Site
R&D Performance Test Center
Plate Heat Exchanger Test Facility
PHE Operational Test Control Center
PHE Approval Certificates from Classification Societies
