High Efficiency Titanium Welded Plate and Block Heat Exchanger for Petrochemical Plants

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: Welded Plate and Block Heat Exchanger
• Certification: CE, ISO
• Application: Heater, Cooler, Vaporizer, Condenser
• Principle: Regenerative Heat Exchanger
• Style: Plate Type
• Material: 304, 316L, 904L, C2000, Smo254, C-276, Ti, 2205
• Frame Type: Four-Side or Six-Side Removable Structure
• Standard Pressure: up to 3.0 MPa
• Cleaning Method: High-Pressure Water Jet Via Removable Panels
• Enhanced Pressure: up to 6.0 MPa
• Transport Package: Plywood Case
• Specification: Customized
• Trademark: Jiangxing
• Origin: China
• HS Code: 8419500090
• Production Capacity: 50000 PCS/Years
• Package Size: 80.00cm * 50.00cm * 200.00cm
• Package Gross Weight: 1000.000kg

Product Description

Product Description

Welded Plate-and-Block Heat Exchanger

The welded plate-and-block heat exchanger is a high-efficiency thermal transfer device that combines the superior high-temperature and high-pressure resistance of fully welded heat exchangers with the easy maintenance advantages of detachable designs. It is engineered for demanding industrial applications requiring stable, compact, and long-lasting heat exchange performance.

Structural Features

Plate Structure
The exchanger typically uses a square plate pack formed from thin metal sheets (0.6–1.0 mm). Standard materials include stainless steel 304 and 316L, while titanium, Hastelloy, and other alloys can be selected for harsh operating conditions.
The surfaces of the plates are embossed with corrugated patterns that induce turbulence, significantly enhancing the heat transfer coefficient.
 
Welding Technology
Plates are joined using fully automated laser welding or TIG welding, ensuring high weld integrity and eliminating the need for gaskets. This design prevents leakage caused by gasket aging, corrosion, or failure.
 
Frame Design
The welded plate pack is installed in a robust frame with four-sided or six-sided removable panels, allowing convenient access for inspection and high-pressure water cleaning. This hybrid design preserves the strength of a welded exchanger while offering the serviceability of a gasketed unit.

Working Principle
Hot and cold media flow through alternating channels between the plates in counter-flow or cross-flow arrangement. The corrugated plate geometry disrupts laminar boundary layers, generating turbulence even at low flow rates—and thereby greatly increasing heat transfer performance.

NMP-Compatible Fully Welded Plate Heat Exchanger for Polar Chemical Processes

"NMP Fully Welded Plate Heat Exchanger" is not a universally standardized term. Its core meaning refers to a fully welded plate heat exchanger specifically designed for NMP (N-Methyl-2-Pyrrolidone), a highly polar solvent, and engineered to meet the heat-transfer requirements of NMP media.
It adopts a fully welded, gasket-free structure, making it suitable for high temperature, high pressure, strong corrosiveness, and operating conditions where NMP tends to accelerate gasket aging and failure.
The following explanation is organized around the core definition, key features, NMP-specific design considerations, and application scenarios.

Core Definition and Structure

Fundamentals of Fully Welded Plate Heat Exchangers
A fully welded plate heat exchanger uses corrugated plates made of special stainless steels or titanium alloys as the heat-transfer elements. The plate edges are laser-welded or TIG-welded into an integrated plate pack, eliminating non-metallic sealing gaskets and forming a fully metallic, sealed flow channel.
This design offers a wide operating range, with temperature resistance from –195 °C to 538 °C and pressure resistance from full vacuum up to 8.2 MPa, combining high heat-transfer efficiency with excellent sealing reliability.

NMP-Specific Adaptation
NMP is a widely used solvent in the chemical industry, characterized by strong solvency and a tendency to accelerate rubber gasket aging at elevated temperatures, while often operating under high-temperature and high-pressure conditions.
By adopting a fully welded structure, this type of heat exchanger eliminates gasket-related failure risks. Corrosion-resistant materials compatible with NMP (such as 316L stainless steel and duplex stainless steel) are selected, and the flow-channel design is optimized to suppress NMP decomposition or fouling during heat-exchange processes.

Applications

The welded plate-and-block heat exchanger is widely used in industries requiring high thermal efficiency and strong mechanical reliability, including:
 
- Petroleum refining
- Natural gas processing
- Organic chemical industry
- Pharmaceutical and oil/fat industry
- Power generation and energy systems
- Metallurgy
- Heat recovery systems

Typical applications include crude oil heating, solvent recovery, waste heat recovery, quenching fluid cooling, and other process heating or cooling duties.

Specification

Product Name	Welded Plate-and-Block Heat Exchanger
Plate Thickness	0.6–1.0 mm (depending on model)
Welding Method	Laser welding / TIG welding
Frame Type	Four-side or six-side removable structure
Materials Available	Stainless Steel 304, Stainless Steel 304L, Stainless Steel 316L, Stainless Steel 904L, Stainless Steel C2000, SMO254, Hastelloy C-276, Titanium Grade 1, Titanium-Palladium alloy, Nickel, Duplex 2205
Standard Pressure	Up to 3.0 MPa
Enhanced Pressure (Optional)	Up to 6.0 MPa
Standard Temperature	Up to 300°C
Enhanced Temperature (Optional)	Up to 400°C
Cleaning Method	High-pressure water jet via removable panels
Typical Heat Transfer Efficiency	3–5× shell-and-tube exchangers
Size Advantage	1/3–1/5 the volume of shell-and-tube units

Due to various specifications and working conditions, products are customized accordingly. The listed price is for reference only.

Main Products

Company Profile

Our company was Established: Mar.2th,2010. Shanghai Jiangxing Chemical Equipment Company is a professional manufacturer and exporter that is concered with design, development and production of heat exchanger. We are located in economic, financial and trade center city--Shanghai China, with convenient transportation access. All of our products comply with international quality standard and are greatly appreciated in a variety of different markets throughout the world.

Covering an area of 3000 spare meters, we now have over 120 employees, boast an annual sales figure that exceeds USD30 million and currently export 80% of our production worldwide.

Our well-equipped facilities and excellent quality control throughout all stages of production enable us to guarantee total customer satisfaction. Besides, we have received ISO9001.

If you are interested in any of our products or would like to discuss custom order, please feel free to contact us, we are looking forward to forming successful business relationships with new clients around the world in the near future.

Certifications