Plate Type Heat Exchanger Model ZL250 for Power Industry

· Product Introduction

Plate heat exchangers (PHEs) play a significant role in power plants, particularly in the areas of heat recovery, cooling, and condensing processes. Here's how plate heat exchangers typically work in a power plant setting:

1. Heat Transfer Mechanism: PHEs facilitate the transfer of heat between two fluids without allowing them to mix. They consist of a series of thin plates, usually made of stainless steel, aluminum, or titanium, which create a large surface area for heat transfer.

2. Flow Arrangement: Fluids enter the PHE through designated ports and flow in alternating chambers created by the plates. The plates are designed with a chevron pattern or other configurations to enhance turbulence and improve heat transfer efficiency.

3. Counterflow or Parallel Flow: In a counterflow arrangement, the hot and cold fluids flow in opposite directions, which can maximize the temperature difference between the fluids and improve heat recovery. In parallel flow, both fluids move in the same direction, which might be used when the temperature approach is less critical.

4. Heat Exchange Process: As the hot fluid (e.g., steam or exhaust gases) flows across one side of the plates, it gives up heat. This heat is then transferred through the metal plates to the other side, where the cooler fluid (e.g., water or air) absorbs it. This process can be used for preheating feedwater, condensing steam, or cooling turbine exhaust gases.

5. Efficiency and Compactness: PHEs are known for their high thermal efficiency and compact size compared to shell-and-tube heat exchangers. They require less space and can handle higher flow rates within the same footprint.

6. Maintenance and Cleaning: The gasketed plates in a PHE can be easily disassembled for cleaning or maintenance, which is beneficial in power plants where fouling can occur due to the presence of impurities in the fluids.

7. Application in Combined Cycles: In combined cycle power plants, PHEs are used in the combined heat and power (CHP) systems to recover waste heat from the gas turbine, which is then used to generate steam for the steam turbine, thereby increasing the overall efficiency of the power plant.

8. Integration with Other Systems: PHEs can be integrated with district heating or cooling systems, where they can efficiently transfer heat from the power plant to the district network, or with organic Rankine cycle (ORC) systems for recovering waste heat to generate additional power.

In summary, plate heat exchangers in power plants are critical components that enhance the efficiency of energy conversion processes by effectively managing and utilizing heat through their compact and efficient design.

· Model

We may modify and upgrade the parameters listed in the drawings and parameter tables without prior notice. The performance parameters and dimensional drawings are subject to order confirmation.