Tianmiao Chemical Machinery has completed manufacturing of an export-bound molten salt reactor vessel. The unit passed a joint acceptance inspection by the client and an independent third party. It is now being prepared for packaging and shipment to an overseas project site.
The molten salt reactor vessel was designed and built to international standards. Its construction uses corrosion-resistant duplex stainless steel combined with high-temperature sealing technology. This configuration suits the high-temperature, highly corrosive service conditions expected at the overseas installation. The unit will serve in a molten salt heat transfer or thermal storage system.
Design and Material Selection for the Molten Salt Reactor Vessel
Duplex Stainless Steel Construction
The reactor vessel shell and internals use duplex stainless steel. This material offers excellent resistance to pitting and stress corrosion cracking. It maintains mechanical strength at elevated operating temperatures. The duplex structure also provides good weldability and fabricability.
High-Temperature Sealing System
Critical joints on the reactor vessel use high-temperature gaskets and bolting. The sealing faces were precision-ground to achieve leak-tight closure. This design prevents molten salt leakage under thermal cycling and pressure fluctuations.
Compliance with International Design Codes
The reactor vessel follows recognized international pressure vessel codes. Design calculations cover pressure, temperature, wind, and seismic loads. Material certifications and weld procedures meet the requirements of the destination country.
Molten Salt Reactor Vessel Manufacturing Quality and Inspection
Rigorous Weld Examination
All critical seams on the reactor vessel underwent radiographic testing (RT) and ultrasonic testing (UT). This dual NDT approach detects both surface and subsurface discontinuities. Weld repair procedures were qualified and documented. The final weld quality met or exceeded the acceptance criteria.
Precision Sealing Surface Grinding
The sealing faces of the reactor vessel received high-precision grinding. Surface finish and flatness meet the gasket manufacturer’s requirements. This ensures reliable sealing under both hydrotest and operating conditions.
Hydrostatic Test at 1.25× Design Pressure
The completed reactor vessel passed a hydrostatic test at 1.25 times its design pressure. The test pressure was held for the required duration with zero leakage. Pressure gauge readings and temperature records were documented. All test parameters met the contract specifications.
Molten Salt Reactor Vessel Export Significance and Customer Value
International Market Recognition
This successful export of the reactor vessel demonstrates Tianmiao’s capability to meet global standards. The acceptance inspection confirmed that the company’s manufacturing quality and quality control systems align with international expectations. It opens doors for future projects in overseas molten salt applications.
Reliable Performance for High-Temperature Service
The reactor vessel will operate in demanding conditions. Its duplex stainless steel construction resists corrosion from chloride and sulfide species. The high-temperature sealing system ensures containment integrity. This reliability extends equipment life and reduces maintenance downtime.
Strengthening Global Supply Chain Position
By delivering a reactor vessel that meets international acceptance criteria, Tianmiao strengthens its position in the global energy equipment supply chain. This project serves as a reference for future export orders in the molten salt thermal storage and concentrated solar power sectors.
Conclusion
Tianmiao Chemical Machinery supplies custom molten salt reactor vessel for energy and chemical applications. For technical data or a project-specific quote, contact the Tianmiao engineering team.