CN217129895U

CN217129895U - Slurry pump sealing structure

Info

Publication number: CN217129895U
Application number: CN202220714728.0U
Authority: CN
Inventors: 李开兵; 杨文琪; 张彦明; 董虎
Original assignee: Sanlianpump Industry Co ltd
Current assignee: Sanlianpump Industry Co ltd
Priority date: 2022-03-30
Filing date: 2022-03-30
Publication date: 2022-08-05
Anticipated expiration: 2032-03-30

Abstract

The utility model discloses a slurry pump sealing structure, which comprises a shaft seal box and a rotating shaft, wherein the rotating shaft is arranged on the shaft seal box in a penetrating way, one end of the rotating shaft is connected with an impeller, a shaft sleeve is sleeved on the rotating shaft, and a sealing mechanism is arranged in the shaft seal box; sealing mechanism includes quiet ring and rotating ring, quiet ring and bearing seal incasement wall connection, and the rotating ring passes through the mount pad setting on the axle sleeve, and the rotating ring forms a sealed face with quiet ring and rotating ring, and the pivot drives the rotating ring when rotating, and the rotating ring keeps laminating and relative slip with quiet ring to prevent that the thick liquid from leaking, has effectively reduced solid particle to mechanical seal's wearing and tearing, effectively prolongs sealing mechanism life.

Description

Slurry pump sealing structure

Technical Field

The utility model relates to a sediment stuff pump seals technical field, specifically is a sediment stuff pump seal structure.

Background

The slurry pump belongs to a centrifugal pump in terms of working principle, and conceptually refers to a device which converts electric energy into kinetic energy and potential energy of a medium by a mechanism which increases the energy of a solid-liquid mixed medium under the action of centrifugal force (rotation of an impeller of the pump). The method is mainly suitable for the industries of mines, power plants, dredging, metallurgy, chemical industry, building materials, petroleum and the like.

The mechanical seal direct mount of prior art sediment stuff pump is epaxial, and the dismouting is inconvenient, and solid particle easily causes wearing and tearing to mechanical seal in the thick liquid, for this reason, the utility model provides a sediment stuff pump seal structure that can solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sediment stuff pump seal structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a slurry pump sealing structure comprises a shaft seal box and a rotating shaft, wherein the rotating shaft penetrates through the shaft seal box, one end of the rotating shaft is connected with an impeller, a shaft sleeve is sleeved on the rotating shaft, and a sealing mechanism is arranged in the shaft seal box;

the sealing mechanism comprises a static ring and a dynamic ring, the static ring is connected with the inner wall of the shaft seal box, the dynamic ring is arranged on the shaft sleeve through a mounting seat, and the dynamic ring, the static ring and the dynamic ring form a sealing surface.

As an optimized technical scheme of the utility model, be provided with the wash port on the shaft seal case.

As a preferred technical scheme of the utility model, be provided with elastic element on the mount pad, elastic element is the spring.

As an optimized technical scheme, be provided with first sealing washer between mount pad and the axle sleeve.

As an optimized technical scheme of the utility model, be provided with the second sealing washer between rotating ring and the mount pad.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model relates to a sediment stuff pump seal structure, pivot drive rotating ring when rotating, rotating ring and quiet ring keep laminating and relative slip prevent that the thick liquid from leaking, have effectively reduced solid particle to mechanical seal's wearing and tearing, effectively prolong sealing mechanism life.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the position relationship between the moving ring and the stationary ring of the present invention;

in the figure: 10. shaft sealing box; 11. a flushing port; 20. a rotating shaft; 21. an impeller; 30. a shaft sleeve; 40. a sealing mechanism; 41. a stationary ring; 42. a mounting seat; 43. a moving ring; 44. a sealing surface; 45. a first seal ring; 46. a second seal ring; 47. an elastic element.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: a slurry pump sealing structure comprises a shaft sealing box 10 and a rotating shaft 20, wherein the rotating shaft 20 penetrates through the shaft sealing box 10, one end of the rotating shaft 20 is connected with an impeller 21, a shaft sleeve 30 is sleeved on the rotating shaft 20, and a sealing mechanism 40 is arranged in the shaft sealing box 10; the sealing mechanism 40 comprises a static ring 41 and a dynamic ring 43, the static ring 41 is connected with the inner wall of the shaft seal box 10, the dynamic ring 43 is arranged on the shaft sleeve 30 through a mounting seat 42, the dynamic ring 43, the static ring 41 and the dynamic ring 43 form a sealing surface 44, the rotating shaft 20 drives the dynamic ring 43 to rotate when rotating, the dynamic ring 43 and the static ring 41 are kept attached and relatively slide to prevent slurry leakage, the abrasion of solid particles to mechanical sealing is effectively reduced, and the service life of the sealing mechanism 40 is effectively prolonged.

The shaft seal box 10 is provided with a flushing hole 11, and high-pressure flushing water is connected through the flushing hole 11, so that conveyed slurry cannot contact the mechanical seal movable ring 43 and the static ring 41, and axial force can be balanced.

The mounting seat 42 is provided with an elastic element 47, and the elastic element 47 is a spring.

A first sealing ring 45 is arranged between the mounting seat 42 and the shaft sleeve 30.

A second sealing ring 46 is arranged between the movable ring 43 and the mounting seat 42.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The slurry pump sealing structure is characterized by comprising a shaft seal box and a rotating shaft, wherein the rotating shaft penetrates through the shaft seal box, one end of the rotating shaft is connected with an impeller, a shaft sleeve is sleeved on the rotating shaft, and a sealing mechanism is arranged in the shaft seal box;

2. The seal structure of claim 1, wherein the shaft seal box is provided with a flushing hole.

3. The slurry pump seal structure according to claim 1, wherein an elastic member is provided on the mount, the elastic member being a spring.

4. The slurry pump seal structure according to claim 1, wherein a first seal ring is disposed between the mounting seat and the bushing.

5. The slurry pump seal structure of claim 1, wherein a second seal ring is disposed between the rotating ring and the mounting seat.