Gasketed Plate And Frame Heat Exchanger
| Product Details
Parallel plate heat exchanger is pressed and shaped by stainless steel plate, which has four runner holes on it, a zigzag corrugated shape pressed in the middle and a sealing groove pressed around it. The surface of the heat exchange plate is pressed into a corrugated or grooved shape to increase the rigidity of the plate, increase the turbulence of the fluid, and improve the heat transfer efficiency. The materials are mostly stainless steel, copper, aluminum, aluminum alloy, titanium, nickel, etc. The corner holes at the corners of the board play the role of connecting channels.
Structural Diagram of a Detachable Plate Heat Exchanger
Method for Designating Plate Heat Exchanger Models
Key Features
- High heat transfer coefficient
The corrugations on the plates induce turbulence even at low Reynolds numbers, resulting in a heat transfer coefficient that is 3 to 5 times higher than that of shell-and-tube heat exchangers, with values reaching up to 7,000 W/(m²·K). - Small footprint
It features a compact structure; compared with shell-and-tube heat exchangers, its heat transfer area per unit volume is 2 to 5 times greater. When performing the same heat exchange task, its footprint is approximately 10% to 20% of that of a shell-and-tube design. - Lightweight
The plate thickness is only 0.5–0.8 mm, and for the same heat‑transfer duty, its weight is approximately 20% of that of a shell-and-tube design. - Small terminal temperature difference
For “water–water” heat exchange, the minimum approach temperature can reach 1°C. - Low fouling factor
The fluid exhibits vigorous turbulence, making it difficult for impurities to settle; the dead zones between plates are minimal; and the stainless-steel heat-transfer surfaces are smooth, resulting in reduced fouling. - Heat exchange between multiple media
Heat exchange among three or more media can be achieved using intermediate baffles, and this configuration is widely employed in dairy processing. - Easy to clean
After removing the clamping bolts, the plate pack can be loosened, and the plates can be removed for mechanical cleaning, making maintenance extremely convenient.
Plate material
Material | Material Code | Thickness | Applicable occasions |
Stainless steel | 304, 304L, 316, 316L | 0.5~0.8 mm | In environments with severe corrosion from acidic or alkaline media, conditions containing chloride ions are not suitable. |
Industrial-grade pure titanium | Ti | 0.5~0.8 mm | Alkali production, salt production, seawater, low-temperature, refrigeration, and environments subject to chloride-ion corrosion |
Nickel | Ni | 0.5~0.8 mm | Corrosion-resistant; resistant to corrosion by concentrated hot alkaline solutions; resistant to neutral and mildly acidic solutions. |
Hastelloy | Hastelloy | 0.5–0.8 mm | Concentrated sulfuric acid, hydrochloric acid, phosphoric acid |
Special steel | SMO254,20Cr,18Ni | 0.5~0.8 mm | Dilute sulfuric acid, dilute aqueous solutions of salts, inorganic aqueous solutions |
Sealant gasket material
Material | Material Code | Applicable temperature: ℃ | Applicable occasions |
Nitrile rubber | N | -20~100 | Hot air, water, nonpolar oils, mineral oil, lubricating oil, silicone oil, etc. |
Ethylene propylene diene monomer rubber | E | -50~150 | Water vapor, polar aqueous substances, alcohols, weak acids, weak bases, oxidizing agents, and the like. |
Fluororubber | F | 0~180 | Strong acids, alkalis, mineral oils, halogenated hydrocarbons, etc. |
Silicone rubber | Q | -65~230 | Food, pharmaceuticals, and other industries |
Neoprene | C | -40~100 | Ammonia, mineral oil, lubricants, Freon, and others |
Design and selection based on parameters: Please provide the following parameters whenever possible, so we can offer you a more precise calculation and selection.
Heat exchange amount | kW or kcal/h | ||
Hot side | Cold side | ||
Media Name |
| Media Name |
|
Traffic | m³/h | Traffic | m³/h |
Inlet temperature | °C | Inlet temperature | °C |
Outlet temperature | °C | Outlet temperature | °C |
Work stress | Mpa | Work stress | Mpa |
Allowable pressure drop | Mpa | Allowable pressure drop | Mpa |
Replacement of Existing Equipment Selection: Please measure the dimensions of your existing equipment as shown in the figure below, so that our team can recommend an appropriate model.
Keywords:
Heat exchanger
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