Mechanical seal structure for volute pump

Abstract

The utility model discloses a kind of mechanical sealing structures for volute pump, it is related to volute pump sealing structure technical field, including base, base is fixedly installed with volute pump main body, the water inlet and outlet of volute pump main body are all welded with first flange plate, second flange plate can be installed on first flange plate by bolt, connecting piece is set between first flange plate and second flange plate, first sealing ring and second sealing ring for sealing are respectively installed between connecting piece and first flange plate,second flange plate.The utility model usually installs first flange plate, second flange plate together by bolt, and, first flange plate, second flange plate respectively extrude first sealing ring, second sealing ring on connecting piece, form the effect of sealed communication, simultaneously, using expansion pad is clamped in first flange plate, second flange plate forms secondary sealing, separates air, to avoid first sealing ring, second sealing ring in long time use process is excessively oxidized.

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