All-welded heat exchanger

Structural Features 

The main characteristic of an all-welded heat exchanger is that all plates and seals are welded together to form a single, integrated structure. This design offers the following advantages:

Gapless Design: Avoids leakage problems caused by gasket aging in traditional removable heat exchangers.

Multiple Material Options: Suitable metal materials can be selected based on different operating environments, such as 304, 316L, 254SMo, Hastelloy, titanium plates, and nickel plates.

Compact Structure: Features a corrugated plate structure similar to a plate heat exchanger, resulting in a compact design and small footprint.

Rapid Heat Transfer: The corrugated plate design increases fluid turbulence, improving heat transfer efficiency.

Advantages:

• High pressure resistance: Can withstand high operating pressures, suitable for high-pressure environments.

• High temperature resistance: Maximum operating temperature up to 400℃, suitable for high-temperature environments.

• High heat exchange efficiency: The corrugated plate design increases fluid turbulence, improving heat transfer efficiency.

• Compact structure: Small footprint, lightweight, easy to install and maintain.

• Strong adaptability: Adaptable to various water qualities and operating conditions, ensuring long-term stable operation of the equipment.

Disadvantages:

• Difficult maintenance: Due to the welding of all components, maintenance and cleaning are relatively difficult.

• High cost: Complex welding processes and diverse material selection lead to relatively high costs.

Application Scenarios

All-welded heat exchangers are suitable for various industrial and civil applications:

Industrial Applications

Chemical Industry: Used for heat exchange processes involving corrosive media, such as chlorination and sulfuric acid industries.

Pharmaceutical Industry: Used for heat exchange processes in pharmaceutical manufacturing.

Power Industry: Used for waste heat recovery in power plants.

Civilian Applications

Heating Systems: Used for heat exchange between heat sources and circulating heating water, improving heating efficiency.

Waste Heat Recovery: Used to recover waste heat from boiler flue gas, further improving energy utilization.

Selection and Maintenance

Selection Key Points

Operating Condition Matching: Select appropriate plate material, specifications, and design parameters based on actual operating conditions.

Water Quality Management: Regularly test and treat the fluid to prevent scaling and corrosion.

Maintenance Measures

Regular Inspection: Inspect the equipment for corrosion and promptly identify and address any leaks.

Cleaning and Maintenance: Clean the equipment regularly to prevent dirt and impurities from affecting heat exchange efficiency.