Mechanical seal transient state start/stop sealing property tester

Abstract

The invention discloses a mechanical seal instantaneous start-stop sealing property test device comprising a dynamic system, a main body sealed mounting platform, a mechanic sealing property parameters measurement system and a pressure supply auxiliary system. The dynamic system comprises a motor (1) and a fly wheel shaft (4) arranged on a bearing support (3); the motor (1) is connected with one end of the fly wheel shaft (4) through a shaft coupling I (2); a clutch (6) is connected with the other end of the fly wheel shaft (4); a fly wheel (5) used for storing energy is arranged on the fly wheel shaft (4); the mechanic sealing property parameters measurement system comprises a torque rotating speed instrument (7) and an industrial computer (16) which are connected with each other; the torque rotating speed instrument (7) is connected with the clutch (6); and the motor (1) and the clutch (6) are connected with the industrial computer (16) separately. The device provided by the invention can be used for testing the performance of a mechanical sealing element not only in an instantaneous start-stop state but also in the traditional stable operation working conditions.

Description

technical field [0001] The invention relates to a mechanical seal test system, in particular a seal test device which uses a flywheel energy storage system and a clutch to simulate the transient start-stop state of a mechanical seal. Background technique [0002] Mechanical seal is a kind of sealing method for rotating machinery with high reliability and good sealing performance. It is widely used in agriculture, petroleum, chemical industry, national defense, aerospace and other departments. It has good sealing performance under stable working conditions. Ground, the design method of commonly used mechanical seals has also been relatively mature. [0003] With the improvement of use requirements, it is imminent to develop mechanical seals with good sealing performance and high reliability. With the continuous expansion of sealing technology and its application fields, some special requirements are constantly being put forward, and relevant theoretical support is urgently n...

AI Technical Summary

Problems solved by technology

However, the existing mechanical seal performance test bench can only provide mechanical seal performance test research in a steady state, so it is necessary to design and build a test bench capable of transient start-stop sealing performance test according to actual needs

[0005] Considering the needs of fast transient start and stop of the test bench, it is not feasible to simply control the motor for fast start and stop, because frequent and fast start and stop of the motor often cause great damage to the motor, and the performance requirements of the motor are high; on the other hand, it is also Difficult to achieve different start and stop accelerations, making it difficult to simulate the start and stop characteristics of actual rotating machinery

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