Stirrer mechanical sealing device slurry leakage online adjustment method

Abstract

The invention provides a stirrer mechanical sealing device slurry leakage online adjustment method. The method comprises the following steps: step one, completely loosening and taking down mechanical sealing lock rings in a stirrer mechanical sealing device; step two, adjusting the stirrer mechanical sealing device; step three, manufacturing adjusting gaskets; step four, meanwhile slowly pushing out the stirrer mechanical sealing device by a jackscrew hole in a mechanical seal, and fixing the stirrer mechanical sealing device in place through four fixing bolts; step five, taking out the four adjusting gaskets, and screwing off and moving out four cards in the stirrer mechanical sealing device; and step six, fixing the stirrer mechanical sealing device in place through all the fixing bolts according to a diagonal fastening method, and fastening firmly. In a correlation technique, after a mechanical seal leaks, workers only can observe or directly change the mechanical seal. The method provided by the invention can implement online changing, and the problem can be solved fundamentally with low cost and zero risk.

Description

【Technical Field】 [0001] The invention relates to the technical field of the mechanical seal of an absorption tower agitator, in particular to a method for on-line adjustment of the slurry leakage of the agitator mechanical seal 【Background technique】 [0002] The absorption tower of the desulfurization system of the power plant needs to adopt a side-entry agitator. When the mechanical seal model of the agitator of the absorption tower is 2VSF37, the mechanical seal of the agitator is automatically adjusted by the compression spring carried by itself, but because of the equipment The environment is poor. In actual operation, problems such as jamming of the moving and static rings and spring failure are very easy to cause slight leakage of the mechanical seal and gradually expand. The existing treatment method can only wait and see or directly replace the mechanical seal. Under normal circumstances, in order to avoid equipment damage accidents under long-term leakage, the treatmen...

AI Technical Summary

Problems solved by technology

The mechanical seal is not only expensive (the mechanical seal of the agitator with a main shaft diameter of 50 mm costs more than 50,000 yuan) but also online (the slurry in the absorption tower is not discharged, and the other agitators can be replaced except for one agitator that needs to be replaced when it is out of service. There is a big risk in the replacement of operation) if the main shaft of the agitator is not drawn properly, a large number of slurry leakage accidents will occur; the temperature of the slurry in the absorption tower exceeds 50 degrees, and a large amount of slurry leakage may easily cause risk events such as scalding accidents for the staff

That is to say, in the prior art, there are disadvantages such as the mechanical seal is easily damaged, the replacement cost is high and the risk of replacement is high after damage