High temperature-resisting magnetic liquid sealing device

The invention relates to a high temperature-resisting magnetic liquid sealing device and belongs to the field of mechanical engineering sealing. The problems of high calorific value of the magnetic liquid in a magnetic liquid sealing clearance, shortened service life and even invalid state of the present magnetic liquid sealing device under the conditions of large axial diameter and high linear velocity are successfully solved. The high temperature-resisting magnetic liquid sealing device is composed of a shell (1), a left pole shoe component, a permanent magnet (4), a right pole shoe component and an end cover (7). An inner surface of each tooth socket of the device is processed into regular polygon; Peltier cards (8) are embedded on all surfaces; huge cooling circulating slots are formed at radiating ends of the Peltier cards (8), so that the radiating effect is obvious. The high temperature-resisting magnetic liquid sealing device is especially fit for solving the sealing problem of the magnetic liquid sealing under the conditions of large axial diameter and high linear velocity.