Sealing device of vertical pump

Abstract

The invention discloses a sealing device of a vertical pump. The sealing device of the vertical pump comprises a pump shaft, a sealing box body is arranged on the pump shaft in a matched mode, a mechanical seal is arranged at the upper end of the sealing box body, and the lower part of the sealing box body is matched with a protruding section of the pump. The sealing device is characterized in that a sliding bearing is arranged in the sealing box body; the sliding bearing is arranged on the pump shaft in a sleeving mode; the sliding bearing and the sealed box body are connected and fixed by afastening screw; two horizontal exhaust pipes are symmetrically arranged on the sealing box body; and the tail ends of the horizontal exhaust pipes are connected with a suction pool; an oil storage device is arranged at the upper end of the mechanical seal; an oil discharging pipe is arranged on the other side, corresponding to the oil storage device, of the mechanical seal; and a vertical exhaustpipe is arranged on the oil discharging pipe. The device has the advantages of being compact in structure, good in stability, safe and reliable, good in using effect, long in service life and free offrequent replacement and maintenance, and the working efficiency of the vertical pump is improved.

Description

technical field [0001] The invention relates to the field of vertical pumps, in particular to a sealing device for a vertical pump. Background technique [0002] Vertical pumps are used to transport abrasive, coarse particles, and high-concentration slurry. The vertical pumps in the prior art have the following problems: 1. Large particles often enter the sealing box, which will affect the normal operation of the pump; 2. The sealing surface of the mechanical seal lacks lubrication, which will cause the mechanical seal to fail due to dry grinding; 3. When the mechanical seal is damaged, the medium will easily flow into the bearing box and cause damage to the bearing; these problems will bring inconvenience to the maintenance of the vertical pump , Time-consuming and labor-intensive, high maintenance costs, and greatly reduce the efficiency of the pump; therefore, some technical improvements are required. Contents of the invention [0003] The object of the present inventi...

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Problems solved by technology

[0002] Vertical pumps are used to transport abrasive, coarse particles, and high-concentration slurry. The vertical pumps in the prior art have the following problems: 1. Large particles often enter the sealing box, which will affect the normal operation of the pump; 2. The sealing surface of the mechanical seal lacks lubrication, which will cause the mechanical seal to fail due to dry grinding; 3. When the mechanical seal is damaged, the medium will easily flow into the bearing box and cause damage to the bearing; these problems will bring inconvenience to the maintenance of the vertical pump , time-consuming and labor-intensive, high maintenance cost, and greatly reduces the working efficiency of the pump; therefore, some technical improvements are required

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