Dry gas seal system capable of automatically regulating clearance, and regulating method thereof

Abstract

The invention discloses a dry gas seal system capable of automatically regulating a clearance, and a regulating method thereof. The system comprises a static ring, a moving ring, springs, a sensor, adata acquisition unit, a computer and a sectional type clapboard. The sensor is arranged on the sealed end surface of the static ring; the sensor is connected to an input end of the data acquisition unit; an output end of the data acquisition unit is connected with an input end of the computer; an output end of the computer link-controls the sectional type clapboard; the multiple springs are fixedly arranged between the sectional type clapboard and the non-sealed end surface of the static ring; a plurality of dynamical pressure slots are uniformly formed in the sealed end surface of the movingring along the circumferential direction; and the static ring sealed end surface and the moving ring sealed end surface are matched to form dry gas seal. The sensor transmits acquired data to the computer, the data is processed so as to obtain a sealed end surface gas film clearance value, a signal is provided to drive the sectional type clapboard to move, the springs are compressed, and the static ring bends and deflects for compensating the deformation of the end surfaces, so that the sealed end surfaces are tend to be parallel, the influence of the deformation on sealing is reduced, the stable operation of sealing is maintained, and the risk of seal failure is reduced.

Description

technical field [0001] The invention belongs to the field of dry gas sealing system, in particular to a dry gas sealing system used for the sealing of rotating machinery. Background technique [0002] The dry gas seal developed based on the theory of gas lubricated bearings, through processing various types of dynamic pressure grooves on the surface of the moving ring, forms a hydrodynamic pressure effect on the sealing end face, making the moving and static rings in a non-contact state, achieving the sealing effect . Dry gas seals have many advantages such as low power consumption, low leakage, less wear, and long life, and have been widely used in the sealing of mechanical equipment in various industries. [0003] With the rapid development of industry, most modern machinery and equipment work under high parameters such as high temperature, high pressure, high speed and other working conditions, and the work of mechanical seals tends to be high temperature, high speed and...

AI Technical Summary

Problems solved by technology

The unequal depth gap destroys the stable operation of the dry gas seal, causing end face wear and increasing the risk of seal failure

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