With the deepening of the national energy strategy, the demand for peak shaving of underground gas storage facilities along the West East Gas Pipeline is becoming increasingly urgent, and the nitrogen boosting technology in oil and gas field exploitation is also developing towards higher pressure and deeper well locations. In these key areas, the application of high-pressure compressors has become an essential equipment for improving energy utilization efficiency and ensuring energy security; Nirvana Machinery focuses on the core pain points of high-pressure unit seals and conducts specialized research and development from multiple dimensions such as material innovation, structural optimization, and heat dissipation upgrades, forming a complete set of sealing solutions suitable for ultra-high pressure working conditions.
（1） Material innovation: Customized high-performance K006 material, suitable for extreme working conditions
The performance of sealing materials directly determines the reliability of the sealing system. Nirvana Machinery has successfully developed K006 high-performance special material on the basis of the excellent conventional PEEK high-performance polymer material and relying on the self-developed material modulation technology, which has improved the wear resistance and aging resistance of seals under extreme conditions, providing material guarantee for the long-term stable operation of the sealing system.
（2） Structural optimization: Combination piston ring design, covering the entire pressure range
In response to the differences in sealing requirements under different pressure conditions, Nirvana Machinery adopts a combined piston ring scheme that is suitable for high-pressure conditions, and innovatively combines multiple piston ring types with different structures. This design can achieve comprehensive coverage of the pressure range of 350-900 bar, reduce the friction loss between the piston ring and cylinder liner, and improve the smoothness and energy efficiency of the unit operation.
The high-pressure unit sealing solution developed by Nirvana Machinery has been rigorously validated in actual working conditions and has demonstrated excellent performance in multiple key projects, gaining widespread recognition in the industry.
-International Unit Adaptation: Successfully applied to the imported foreign 700bar ultra-high pressure units in Xinjiang oil and gas fields, the seals operate stably in extreme pressure and complex medium environments, with a service life far exceeding the industry average. User feedback shows excellent performance.
-Domestic OEM support: It has fully adapted to the high-voltage unit research and development projects of multiple domestic OEMs, including key projects such as high-voltage units in the Bengbu market and high-voltage units in the Sichuan Chongqing region.
-At the same time, based on existing technological achievements, special research and development will be carried out for foreign ultra-high hydraulic units, including hydraulic sealing ring groups for primary and secondary ultra-high pressure units with special structural systems. Through unique ring group structure adjustment and material selection, the sealing pressure range can reach 1500-2000 bar.
