The brazed plate heat exchanger is permanently connected by multiple layers of stainless steel plates through the brazing process. Its core structure consists of corrugated plates, brazing materials (usually copper or nickel), and an external frame. The corrugated design between the plates forms complex flow channels, allowing cold and hot media to flow in opposite or cross directions in adjacent channels, achieving rapid heat exchange.
The corrugated plate design enables the heat transfer coefficient to reach 3 to 5 times that of shell and tube heat exchangers, significantly enhancing energy efficiency.
Its volume is only 20%-30% of that of traditional heat exchangers, saving installation space.
The brazed structure can withstand a pressure of over 30 bar and a temperature range of -160℃ to 220℃ (depending on the brazing filler metal).
Gasless design avoids leakage risk, and corrosion-resistant materials (such as 316L stainless steel) extend service life.
Applicable to liquid-liquid, gas-liquid and phase change heat transfer (such as evaporation or condensation).
Multi-channel design: Cold and hot fluids flow parallel (counter-current, co-current or cross-flow) between alternating plates, forming complex paths through corrugation guidance, prolonging residence time and enhancing turbulence.
Counter-flow advantage: The common counter-flow arrangement (with the fluid direction opposite) can maximize the logarithmic mean temperature difference (LMTD) and improve heat transfer efficiency.
Conduction: Heat is conducted through the metal plates from the high-temperature fluid to the low-temperature fluid. The brazing layer ensures that the thermal resistance between the plates is minimized.
Convection: The corrugated structure disruptors the laminar boundary layer, generating intense turbulence (Reynolds number Re > 2000), significantly enhancing the convective heat transfer coefficient (up to 3 to 5 times that of shell and tube heat exchangers).
The shape of the corrugations and the spacing of the plates affect the pressure drop: Herringbone corrugations have strong turbulence but high pressure drop, making them suitable for low-resistance designs (such as inclined corrugations)
In high-traffic scenarios.
The brazed plate heat exchanger is formed by permanently connecting multiple layers of stainless steel plates through the brazing process. Its core structure is composed of corrugated plates, brazing materials (usually copper or nickel), and an external frame. The corrugated design between the plates forms complex flow channels, enabling the cold and hot media to flow in opposite or cross directions within adjacent channels, thus achieving rapid heat exchange
The brazed plate heat exchanger is permanently connected by multiple layers of stainless steel plates through the brazing process. Its core structure consists of corrugated plates, brazing materials (usually copper or nickel), and an external frame. The corrugated design between the plates forms complex flow channels, allowing cold and hot media to flow in opposite or cross directions in adjacent channels, achieving rapid heat exchange.
The brazed plate heat exchanger is formed by permanently connecting multiple layers of stainless steel plates through the brazing process. Its core structure is composed of corrugated plates, brazing materials (usually copper or nickel), and an external frame. The corrugated design between the plates forms complex flow channels, enabling the cold and hot media to flow in opposite or cross directions within adjacent channels, thus achieving rapid heat exchange
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