Vertical self-priming centrifugal pump self-supply water-cooling mechanical sealing structure
A technology of mechanical seal and centrifugal pump, applied in the field of self-contained water-cooled mechanical seal structure of vertical self-priming centrifugal pump, can solve problems such as dry friction of friction pair, achieve reliable water cooling, improve service life and good water cooling effect.
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[0018] The present invention will be further described below according to the accompanying drawings and examples.
[0019] figure 1 The self-contained water-cooled mechanical seal structure of the vertical self-priming centrifugal pump shown includes three parts: the pump shaft seal, the pressurized water assembly and the connecting pipe. The pump shaft seal is located on the top of the impeller 1.3, and it includes a mechanical seal 1.2 equipped with a vertical pump shaft 1.1, an impeller 1.3, a lock nut 1.4, and a flange 1.5 matched with the impeller 1.3. The present invention is provided with a pressurized water assembly at the bottom of the pump shaft seal, and its housing 2.1 is a water storage container with a bottom, and the upward end face is connected with the pump shaft seal through a flange 1.5. The transmission shaft 2.2 is respectively connected with the lock nut 1.4 and the inner ring 2.3.1 through tenon structures at both ends, forming a structure in which the ...
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