Dry gas seal structure suitable for vibration detection
A technology for dry gas sealing and vibration detection, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc. It can solve the problems of difficult dry gas sealing vibration measurement, difficult to fix the sensor firmly, and easy to be involved in the signal line by the rotating shaft.
Inactive Publication Date: 2017-02-15
SICHUAN UNIV
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Problems solved by technology
[0003] Affected by external conditions, dry gas seal axially moving workpieces will produce certain periodic axial vibrations under working conditions, thereby changing the thickness of the gas film. However, the distance between the dry gas seal workpieces of ordinary design is too tight, and the sensor is difficult to fix firmly , and the signal line is easily involved by the rotating shaft, etc., making it difficult to measure the vibration of the dry gas seal under working conditions
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[0014] The present invention will be described in detail below in conjunction with the accompanying drawings. In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0015] Such as figure 1 As shown, a dry gas seal structure suitable for vibration detection is characterized in that it includes a shaft sleeve, a moving ring, a static ring, a push ring and a spring seat, between the shaft sleeve and the moving ring, between the static ring and the A C-shaped sealing ring is attached between the push rings and between the push ring and the spring seat, and 12 identical springs are installed between the push ring and the spring seat.
[0016] Wherein, the sh...
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The invention discloses a dry gas seal structure suitable for vibration detection. The dry gas seal structure comprises a shaft sleeve, a movable ring, a fixed ring, a push ring and a spring base. Circular grooves are formed in the fixed ring and the push ring correspondingly and used for stably containing vibration acceleration sensors. Symmetrical through holes are formed in the push ring and the spring base so that sensor signal lines can be guided. By means of the structure, the problem of dry gas seal workpiece vibration detection under the working condition is effectively solved on the basis of not influencing the normal operation of a dry gas seal. The dry gas seal structure has the beneficial effects that the structure is simple, machining is facilitated, and measurement of the vibration situation of axial moving workpieces is achieved under the condition that the normal working condition operation of the axial moving workpieces in the dry gas seal is not influenced.
Description
technical field [0001] The invention belongs to the technical field of dry gas sealing, in particular to a dry gas sealing structure suitable for vibration detection. Background technique [0002] Dry gas seal is a kind of non-contact mechanical seal, which is widely used in industrial production devices such as centrifugal pumps, mixers and compressors. When working, a micron-sized gas film will be formed between the end faces of the moving ring and the static ring. Small changes in thickness can cause dry gas seal failure. [0003] Affected by external conditions, dry gas seal axially moving workpieces will produce certain periodic axial vibrations under working conditions, thereby changing the thickness of the gas film. However, the distance between the dry gas seal workpieces of ordinary design is too tight, and the sensor is difficult to fix firmly , and the signal line is easily involved by the rotating shaft, which makes it difficult to measure the vibration of the d...
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Login to View More IPC IPC(8): F16J15/34F16J15/40
CPCF16J15/164F16J15/3452F16J15/3492F16J15/40
Inventor 殷国富刘蕴殷鸣徐雷
Owner SICHUAN UNIV