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What are the characteristics of plate-type gas-to-gas heat exchangers?
Release time:
2023-08-22
The air heat exchanger, also known as a plate-type air heat exchanger, is composed of a stack of thin metal plates that are arranged in parallel and pressed against spacers. It mainly consists of heat transfer plates, outer frame sealing plates, and a clamping device.
Structure and Operating Principle
The air heat exchanger, also known as a plate-type air heat exchanger, is composed of a stack of thin metal plates that are arranged in parallel and pressed against spacers. It mainly consists of heat transfer plates, outer frame sealing plates, and a clamping device.
Product Advantages
1. Excellent heat transfer performance: The plate thickness of plate heat exchangers is thin, resulting in superior heat transfer efficiency.
2. Large Log Mean Temperature Difference: Plate heat exchangers can achieve counterflow operation, resulting in a high temperature correction factor.
3. Small Footprint: Plate heat exchangers have a compact structure, and their footprint is smaller than that of shell-and-tube heat exchangers.
4. Lightweight: The plate thickness of plate heat exchangers is only 0.5 mm to 1.5 mm.
5. Low Cost: Under the same heat transfer requirements, plate heat exchangers offer superior heat transfer performance, require a smaller heat transfer area, and thus have lower overall construction costs.
6. Large Handling Capacity: In plate heat exchangers, the hot and cold fluids flow parallel to the heat transfer surface within the channels, with no bypass flow. They offer a wide range of air handling capacities and are widely used in waste heat recovery applications.
7. Not Prone to Clogging: The channels between the plates are wide and feature few contact points, facilitating the flow of highly viscous fluids as well as fluids containing solid particles, while impurities are less likely to settle; the heat transfer surfaces made of stainless steel are smooth and have minimal corrosion‑related deposits, making scaling less likely.
8. Easy to Clean: The equipment can be equipped with a blow‑cleaning and spray‑washing system, allowing for air blowing and rinsing with clean water, resulting in minimal residual foreign matter and convenient cleaning.
9. Reliable Quality: The plates are manufactured using advanced, fully automated welding equipment and technology. Resistance welding is employed between the plates, supplemented by manual welding to ensure that the welds are highly resistant to cracking. Combined with a variety of inspection devices and techniques, this approach maximizes the assurance of equipment quality.
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