Semi-welded plate heat exchanger for heating and corrosive medium cooling

Product Model: T20BW

Product Category: Semi-welded Plate Heat Exchanger

Core Positioning: Specifically designed for the cooling of corrosive media and the heating of various media

The T20BW features an innovative semi-welded structural design, with high-quality stainless steel corrugated plates as its core component. Two plates are attached back-to-back and welded into an independent plate cassette along the dedicated sealing groove via laser welding technology, which serves as the exclusive flow channel for corrosive media. Gaskets are used for sealing between each plate cassette, forming the flow channel for conventional media.

During operation, media such as refrigerant circulate between plate cassettes and only come into contact with two of the four annular gaskets at the inlet and outlet. This design greatly reduces the contact area between the medium and the sealing parts, which not only ensures the sealing performance of the flow channels but also effectively prevents the erosion of sealing parts by corrosive media, achieving efficient isolation and heat exchange between cold and hot media.

• Wide temperature range & high pressure resistance: Operating temperature ranges from -38℃ to 200℃, adapting to various working conditions of high and low temperatures; maximum design pressure can reach 30 bar, meeting heat exchange requirements of medium and high pressure.
• Robust and stable structure: Adopting a rigid mechanical structure design with strong overall compression and deformation resistance, ensuring high operational stability and long service life.
• Excellent sealing and leakproof performance: Dual sealing design of laser welding and gaskets delivers outstanding leakproof performance, effectively avoiding medium leakage and cross-contamination.
• Superior corrosion resistance: Plate cassette-type welded flow channel is specially designed for corrosive media, capable of efficiently handling various aggressive media.
• High flexible adaptability: Overall size can be customized on demand, with heat exchange area flexibly adjustable to match actual heat exchange needs.
• Compact installation footprint: Compact structural design features small volume and light weight, requiring minimal installation space.

• Equipped with laser welding technology for tight, uniform weld seams and excellent sealing performance with no risk of medium leakage.
• Plates made of high-quality stainless steel, balancing high heat transfer efficiency and strong corrosion resistance for harsh medium working conditions.
• Low-contact design between medium and sealing parts reduces wear and lowers maintenance costs.
• Semi-welded structure integrates corrosion and pressure resistance of welded type with flexible maintenance of gasket type.

Relying on its core characteristics of corrosion resistance, temperature resistance and pressure resistance, the T20BW semi-welded plate heat exchanger is widely used in industries such as chemical, pharmaceutical, refrigeration and metallurgy. It is especially suitable for heat exchange working conditions where one side is corrosive medium and the other side is conventional medium, and can complete core processes such as cooling of corrosive media, heating of process media and refrigerant heat exchange.

Common applications include ammonia refrigeration/freon refrigeration systems, acid-base medium cooling, chemical raw material heating and other industrial scenarios.