For the torpedo turbine radial double-end mechanical seal in high-speed,high-temperature,high-pressure and other complex and extreme conditions of the inner seal leakage problem,based on the thermal-fluid-solid coupling simula-tion method to study the deformation of its end face.The results show that:the inner and outer sealing end face along the dir-ection of the growth of the radius of the end-face gap gradually become bigger,the inner seal end-face gap is larger than the outer,the maximum of 0.04 mm.For the inner mechanical seal,compared the rotating and static ring end face single thermal,force,thermal coupling deformation results,and studied the impact of cooling water pressure,sealing end face width on its end face temperature and deformation,the results show that:static ring end face deformation by the temperature is affected by the larger,and the force deformation will inhibit the thermal deformation,the rotating ring end face deformation is mainly affected by the temperature;cooling water pressure increases,the seal end face temperature gradually increased,the static ring end face deformation slightly reduced,the rotating ring end face deformation is almost unchanged;with the reduction of sealing endface width,the endface temperature gradually increases,the rotating ring endface deformation increases,the op-timal sealing endface width is 3.5 mm,the static ring endface deformation with the reduction of the endface width and reduce.
radial double end facemechanical sealend face temperatureend face deformation
NETL
NSTL
万方数据
