Product Overview
The Double Pipe Type Heat Exchanger consists of inner and outer pipes assembled together, allowing hot and cold fluids to flow separately through the inner tube and annular space in a counter-current direction.
With a simple structure and convenient maintenance, this equipment is widely used for small and medium flow heat exchange applications.
The equipment supports a design pressure range of 0.8~10MPa and operating temperature range of 30℃~250℃. The heat transfer area ranges from 5~200㎡, with pipe sizes typically from DN80 to DN200.
The inner and outer pipes can be manufactured using carbon steel, stainless steel, or corrosion-resistant alloys depending on the medium characteristics. Single units or multiple units connected in series are available.
Each section undergoes hydraulic leakage testing before delivery. The equipment complies with GB151 heat exchanger standards and provides a designed service life of 15~30 years.
Core Advantages
- Counter-current flow design improves temperature difference utilization and heat exchange efficiency.
- Simple disassembly structure allows independent cleaning of each section, suitable for viscous and scaling media.
- Compact footprint makes it ideal for laboratories, pilot plants, and skid-mounted systems.
- Low investment cost with flexible expansion through multiple units connected in series.
Applications
- Small pharmaceutical synthesis equipment
- Laboratory temperature control systems
- Fine chemical pilot-scale production lines
- Small refrigerant heat exchange systems
- Water treatment temperature control equipment
- Special reagent heating and cooling systems
Flexible Supply Advantages
The company supports small-batch customization for laboratories, research institutions, and pilot production enterprises without high minimum order requirements.
Single-unit orders can be accepted, with sample development usually completed within 15~30 days. Sample costs can be deducted from future bulk orders according to agreement.
Flexible payment terms are available. Standard equipment production can begin with 30% advance payment.
For export customers, EXW and FOB trade terms are supported. Compact packaging solutions help reduce transportation costs for small orders.
All shipments are covered by cargo insurance to reduce transportation risks. Long-term research customers can receive priority production support.
Technical Parameters
|
Parameter |
Specification |
|
Design Pressure |
0.8~10MPa |
|
Working Pressure |
0.5~9MPa |
|
Design / Working Temperature |
40℃~300℃ / 30℃~250℃ |
|
Main Material |
Q345R / 304 / 316L / 2205 |
|
Heat Transfer Area |
5~200m² |
|
Inner Diameter |
DN80~DN200 |
|
Cylinder Thickness |
4~12mm |
|
Applicable Medium |
Chemical fluids, water, thermal oil, steam |
|
Standards |
GB151, ASME VIII.1 |
|
Head Type |
Flanged head |
|
Service Life |
15~30 Years |
|
Surface Protection |
Sand blasting, pickling passivation, anti-corrosion coating |
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