Dry gas seal intelligent monitoring system

Abstract

The invention relates to a dry gas sealing intelligent monitoring system, wherein the state parameter acquisition module includes a flow sensor, a temperature sensor and a pressure sensor; the state monitoring module is used to monitor the current state of the dry gas sealing device, including a flow state monitoring sub-module for receiving flow The flow monitoring signal collected by the sensor is used to monitor the flow state of the inlet of the sealed gas into the sealed chamber and the outlet of the leaked gas out of the sealed chamber; the temperature status monitoring sub-module receives the temperature detection signal collected by the temperature sensor to monitor the primary leakage The temperature state at the gas outlet position; and the pressure state monitoring sub-module, which receives the pressure detection signal collected by the pressure sensor, so as to monitor the pressure state in the pipeline of the sealing gas, the leakage gas and the filter respectively. The solution of the present invention is no longer limited to the consideration of the running state of the sealing end face, solves the problems of single judgment basis and large hysteresis in the prior art, and can help realize the management and maintenance of the equipment more effectively.

Description

technical field [0001] The invention relates to the field of dry gas sealing monitoring, in particular to an intelligent monitoring system for dry gas sealing. Background technique [0002] The mechanical equipment in modern industry is already very sophisticated, but there are still leakage problems in equipment such as pipelines and pressure vessels. Leakage can cause waste of energy, material loss, and environmental pollution, or cause fires, explosions, or even directly endanger personal safety. Sealing is an effective device to prevent leakage. In the petrochemical field, more than 90% of refining and chemical equipment use sealing equipment, especially dry gas seals are widely used in petrochemical and other fields due to their high reliability and long life. [0003] A typical dry gas seal is generally composed of an end face seal pair, elastic elements, auxiliary seals, transmission parts, anti-rotation parts and fasteners. According to different working principles...

AI Technical Summary

Problems solved by technology

[0005] The invention patent application with the publication number CN105699431A discloses a non-contact prior monitoring method and device for the oil film lubrication state of the bearing, which realizes the online measurement of the film thickness of the sealing end face. However, the monitoring of the dry gas seal is only limited to The operating state of the sealing end face is judged based on a single basis and a large lag, which cannot help realize equipment management and maintenance more effectively

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