Product
High Purity Low Pressure Nitrogen Preheater Boiler Air Preheater
TONGYANG manufactures customized Low-Low Pressure Nitrogen Preheaters for chemical and industrial gas processing. The E21206 shell and tube heat exchanger features a 204.0 m² heat transfer area, 330°C design temperature and thermal oil heating, manufactured according to GB/T 151-2014.
Keywords:
High Purity Low Pressure Nitrogen Preheater Boiler Air Preheater
Product Details
Low-Low Pressure Nitrogen Preheater – Shell and Tube Heat Exchanger
Product Overview
Yangzhou Tongyang Chemical Equipment Co., Ltd. (TONGYANG) manufactures customized nitrogen preheaters and industrial shell and tube heat exchangers for chemical, petrochemical and industrial gas processing applications.
The Low-Low Pressure Nitrogen Preheater (E21206) is designed to heat nitrogen using thermal oil as the heating medium. It provides controlled heat transfer between the nitrogen and thermal oil circuits, supporting the required nitrogen temperature for downstream industrial processes.
Manufactured in March 2026, this customized heat exchanger features a heat transfer area of 204.0 m², a design temperature of 330°C, and construction based on GB/T 151-2014 Heat Exchangers.
The equipment is designed with separate shell-side and tube-side operating conditions to meet the technical requirements of the nitrogen preheating process.
Technical Specifications
General Equipment Information
| Parameter | Specification |
|---|---|
| Product Name | Low-Low Pressure Nitrogen Preheater |
| Equipment Type | Shell and Tube Heat Exchanger |
| Product Number | F2026072-1-3 |
| Equipment Code | TYF2026072-1-3 |
| Equipment Tag | E21206 |
| Manufacturing Date | March 2026 |
| Net Weight | 1,998 kg |
| Heat Transfer Area | 204.0 m² |
| Baffle Spacing | 500 mm |
| Applicable Standard | GB/T 151-2014 |
Shell-Side and Tube-Side Design Parameters
| Parameter | Shell Side | Tube Side |
|---|---|---|
| Working Medium | Nitrogen | Thermal Oil |
| Design Pressure | 0.098 MPa | 0.63 MPa |
| Hydrostatic Test Pressure | 0.17 MPa | 1.02 MPa |
| Design Temperature | 330°C | 330°C |
| Main Material | S30408 | Q345R + S304 |
The specifications above refer to the E21206 equipment configuration. Other equipment sizes, materials and operating conditions are subject to project-specific design review.
Design and Manufacturing Features
1. Thermal Oil Heating System
The preheater uses thermal oil as the heating medium to transfer heat to the nitrogen process stream.
The shell and tube configuration provides indirect heat transfer between the two fluids while maintaining separate flow circuits.
Heating performance depends on nitrogen flow rate, inlet temperature, thermal oil conditions and the final thermal design.
2. Customized Heat Transfer Surface
The equipment features a specified heat transfer area of 204.0 m² and a baffle spacing of 500 mm.
The internal arrangement supports the required heat transfer duty while taking into account process-side pressure drop and mechanical design requirements.
3. High-Temperature Design
Both the shell side and tube side have a design temperature of 330°C.
Material selection, mechanical strength and thermal expansion requirements are evaluated according to the approved design specifications.
4. Project-Specific Materials
The equipment uses the following specified materials:
Shell Side: S30408 stainless steel
Tube Side: Q345R and S304 material combination
The exact material allocation to individual pressure-containing components should follow the approved manufacturing drawings and material list.
5. Pressure Vessel and Heat Exchanger Manufacturing
The equipment is manufactured according to the applicable requirements of GB/T 151-2014 and approved project documentation.
Manufacturing and quality control activities include material verification, welding, assembly, dimensional inspection and required pressure testing.
Typical Industrial Applications
Customized nitrogen preheaters can be incorporated into:
Chemical processing plants
Petrochemical production facilities
Industrial nitrogen heating systems
Nitrogen blanketing and purging systems
Industrial gas conditioning packages
Chemical process temperature-control systems
Selected sulfuric acid production facilities
The suitability of a particular nitrogen preheater depends on process conditions and equipment design requirements.
Manufacturing Capabilities and Quality Assurance
TONGYANG specializes in customized pressure vessels, shell and tube heat exchangers, reactors, industrial separators and related chemical process equipment.
Our manufacturing facility covers approximately 80,200 m² and supports pressure equipment fabrication, welding, tubesheet machining, tube bundle assembly and inspection.
TONGYANG holds ASME U/U2 manufacturing qualifications, ISO management system certifications and China's A2 pressure vessel manufacturing license.
Depending on project requirements, equipment manufacturing can be supported by:
Material traceability
Qualified welding procedures
Dimensional inspection
Non-destructive examination
Hydrostatic testing
Factory Acceptance Testing (FAT)
Third-party inspection coordination
Manufacturing documentation
The applicable inspection and certification requirements are determined by the approved design code and project specifications.
Customized Nitrogen Preheater Solutions
In addition to the E21206 Low-Low Pressure Nitrogen Preheater, TONGYANG manufactures customized nitrogen heaters, gas preheaters and shell and tube heat exchangers according to customer specifications.
For technical evaluation and quotation, please provide:
Nitrogen flow rate
Nitrogen inlet and required outlet temperatures
Thermal oil inlet and outlet temperatures
Thermal oil flow rate
Operating and design pressures
Design temperatures
Required heat duty
Material specifications
Applicable design standards
Inspection and certification requirements
Equipment quantity and delivery destination
Contact TONGYANG
Yangzhou Tongyang Chemical Equipment Co., Ltd.
Industrial Heat Exchangers | Nitrogen Preheaters | Pressure Vessels | Chemical Process Equipment
Website: https://tongyangprocess.com
Company Overview
Founded in 1990, TongYang is a professional company specializing in developing and manufacturing chemical machinery and equipment for customers ,It has manufacturing license of grade A2 (the third type of pressure vessel) issued by state general administration of market supervision, license Key: :TS2210D94-2023. Tongyang has always been committed to the research and development, production, application of chemical machinery and equipment in fine chemical, petrochemical, food, biological and pharmaceutical industries. Our technology in develop distillation tower and separation equipment attain domestic leading level, Keep pace with international advanced level.
Provide turnkey projects
Our team can provide you with turnkey engineering, you do not have to worry about the installation is not professional, we will complete the installation and debugging according to your specific requirements, at the same time, a professional training, to solve your worries.
Competitive Advantage
Abundant experience: more than 30 years experience in non-ferrous metal cladding and production;
Technical consulting service: technical consulting on material, welding, NDE, Welding, Heat treatment ;
Independent inspection service; in-process inspection, final inspection; Hydrostatic testing etc;
Transportation: have own export license, Yangzhou Port and Shanghai Port , 2.4 kilometers away from Yangzhou Port and 226 kilometers away from Shanghai Port.
Varieties of manufacturing standards to meet the needs of the global market
GB150-2011;
ASME U, U2 Certificate;
GOST 34347;
ISO14001 , ISO 45001, ISO 9001;
ASME SEC VIII DIV.1，ASME SEC VIII DIV.2 ; f.PED 97/23/EC with CE certificate;
Workshop Photos
Production workshop
Production workshop
Production workshop
Production Certification
Consultation
Address
No. 9 Yangtes south Road (No. 1 Bonded Zone), Yangzhou, Jiangsu China
Copyright©2023 Yangzhou Tongyang Chemical Equipment Co., Ltd.