Mechanical seal leakage rate online monitoring system

Abstract

The invention discloses a mechanical seal leakage rate online monitoring system, and belongs to the field of a mechanical seal monitoring system. The mechanical seal leakage rate online monitoring system comprises a leakage-sensitive pipe, a fluid infusion tank, a circulation tank, a data processor, a first liquid level transmitter, a second liquid level transmitter, an automatic control switch valve, a fluid infusion pump, a non-return valve, a mechanical seal structure and a water tank. In case of normal work, the automatic control switch valve is normally-closed, the circulation tank communicates with the leakage-sensitive pipe, and liquid level change of the leakage-sensitive pipe sensitively reflects the leakage rate of the mechanical seal structure; when the liquid level of the leakage-sensitive pipe is reduced to a certain degree, the automatic control switch valve is open, the fluid infusion tank, the circulation tank and the leakage-sensitive pipe form a communicating vessel so as to realize automatic fluid infusion of the leakage-sensitive pipe; and when the liquid level of the fluid infusion tank is reduced to a certain degree, the fluid infusion pump is started, and thus automatic fluid infusion of the fluid infusion tank is realized. The monitoring system provided by the invention can sensitively monitor the leakage rate of a mechanical seal in real time and output early warning signals when the leakage rate exceeds a standard; and when a seal blocking liquid is insufficient, the seal blocking liquid can also be automatically supplemented.

Description

technical field [0001] The invention belongs to the field of mechanical seal monitoring systems, and more specifically relates to an online monitoring system for the leakage rate of mechanical seals. Background technique [0002] The leakage rate is the most important performance parameter of a mechanical seal, and the leakage rate directly characterizes the quality of the sealing performance. The mechanical seal failure process goes through the process of mechanical seal micro leakage, excessive leakage, and large leakage. When the seal has excessive leakage, it means that the sealing performance has failed. If the leakage rate of the mechanical seal cannot be monitored in real time and an early warning signal is given in the early stage of the excessive leakage of the mechanical seal, it will lead to further deterioration of the seal until serious failure, which will not only affect the production of the enterprise, but may even cause production accident. However, at pre...

AI Technical Summary

Problems solved by technology

When the leakage of the sealing liquid is completed, if it is not replenished in time, it will cause dry friction on the sealing end face, resulting in serious failure of the seal. However, the existing mechanical seal auxiliary device cannot realize the automatic replenishment of the sealing liquid

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