CN217129892U - Slurry pump sealing device with balanced axial force - Google Patents
Slurry pump sealing device with balanced axial force Download PDFInfo
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- CN217129892U CN217129892U CN202220889453.4U CN202220889453U CN217129892U CN 217129892 U CN217129892 U CN 217129892U CN 202220889453 U CN202220889453 U CN 202220889453U CN 217129892 U CN217129892 U CN 217129892U
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- impeller
- mechanical seal
- axial force
- auxiliary impeller
- shaft
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Abstract
The utility model discloses a have balanced axial force sediment stuff pump sealing device, including the axle, epaxial axle sleeve that is equipped with mechanical seal on the axle sleeve, mechanical seal is equipped with the joint sealing outward, at epaxial increase auxiliary impeller between joint sealing and impeller, be equipped with first terminal surface on the auxiliary impeller, be provided with a plurality of groups blade on the first terminal surface, the blade becomes the arc structure. The utility model discloses the blade becomes the arc structure, rotates together along with the impeller rotation, forms the secondary seal and can alleviate the pressure of the vice department of mechanical seal friction, effectively prevents the ore pulp granule to the vice damage of friction, and simultaneously, the axial force can be balanced to the auxiliary impeller, prolongs the bearing life-span.
Description
Technical Field
The utility model relates to a sediment stuff pump field, in particular to have balanced axial force sediment stuff pump sealing device.
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.
When the slurry is conveyed at high lift and high concentration, once particles in the slurry enter a friction pair of a mechanical seal, the particles are easily damaged, and the slurry is leaked.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a sealing device with balanced axial force slurry pump is provided.
In order to solve the above problems, the utility model provides a following technical scheme:
the utility model provides a have balanced axial force sediment stuff pump sealing device, includes the axle, is equipped with the axle sleeve on the axle, is equipped with mechanical seal on the axle sleeve, mechanical seal is equipped with the joint sealing outward, increases the auxiliary impeller at the epaxial between joint sealing and impeller, be equipped with first terminal surface on the auxiliary impeller, be provided with a plurality of groups of blades on the first terminal surface, the blade becomes the arc structure.
The utility model discloses a further technique:
preferably, a plurality of groups of blades arranged on the auxiliary impeller are opposite to the direction of the blades of the impeller.
Preferably, the side wall of the auxiliary impeller is provided with an annular rectangular groove, the inner wall of the mechanical seal box is provided with an annular rectangular convex edge, and the annular rectangular convex edge on the inner wall of the mechanical seal box is correspondingly matched with the annular rectangular groove on the side wall of the auxiliary impeller.
The beneficial effect of adopting above technical scheme is:
the utility model discloses the blade becomes the arc structure, rotates together along with the impeller rotation, forms the secondary seal and can alleviate the pressure of the vice department of mechanical seal friction, effectively prevents the ore pulp granule to the vice damage of friction, and simultaneously, the axial force can be balanced to the auxiliary impeller, prolongs the bearing life-span.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts;
FIG. 1 is a front view of a slurry pump seal with balanced axial force;
FIG. 2 is a schematic view of a first end face of the expeller;
FIG. 3 is a side sectional view of the expeller;
wherein: the shaft sealing device comprises a shaft 10, a shaft sleeve 11, a mechanical seal 12, a sealing box 13, an impeller 14, a secondary impeller 15, blades 16, an annular rectangular groove 17 and an annular rectangular rib 18.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the drawings.
As shown in fig. 1-3, in the first embodiment, a slurry pump sealing device with a balanced shaft 10 includes a shaft 10, a shaft sleeve 11 is disposed on the shaft 10, a mechanical seal 12 is disposed on the shaft sleeve 11, a mechanical seal box 13 is disposed outside the mechanical seal 12, an auxiliary impeller 15 is added on the shaft 10 between the mechanical seal box 13 and an impeller 14, a first end surface is disposed on the auxiliary impeller 15, a plurality of sets of blades 16 are disposed on the first end surface, and the blades 16 are in an arc structure.
The auxiliary impeller 15 is provided with a plurality of groups of blades 16 which are opposite to the direction of the blades 16 of the impeller 14.
The present embodiment is implemented as follows: the blades 16 are of an arc-shaped structure and rotate together with the rotation of the impeller 14 to form secondary sealing, so that the pressure at the friction pair of the mechanical seal 12 can be reduced, the damage of ore pulp particles to the friction pair is effectively prevented, meanwhile, the auxiliary impeller 15 can balance the axial force of the shaft 10, and the service life of the bearing of the shaft 10 is prolonged.
The embodiment II provides a slurry pump sealing device with a balance shaft 10 and a radial force, and comprises a shaft 10, wherein a shaft sleeve 11 is arranged on the shaft 10, a mechanical seal 12 is arranged on the shaft sleeve 11, a mechanical seal box 13 is arranged outside the mechanical seal 12, an auxiliary impeller 15 is additionally arranged on the shaft 10 between the mechanical seal box 13 and an impeller 14, a first end face is arranged on the auxiliary impeller 15, a plurality of groups of blades 16 are arranged on the first end face, and the blades 16 are of arc-shaped structures.
The auxiliary impeller 15 is provided with a plurality of groups of blades 16 which are opposite to the direction of the blades 16 of the impeller 14.
The blades 16 are of an arc-shaped structure and rotate together with the rotation of the impeller 14 to form secondary sealing, so that the pressure at the friction pair of the mechanical seal 12 can be reduced, the damage of ore pulp particles to the friction pair is effectively prevented, meanwhile, the auxiliary impeller 15 can balance the axial force of the shaft 10, and the service life of the bearing of the shaft 10 is prolonged.
The side wall of the auxiliary impeller 15 is provided with an annular rectangular groove 17, the inner wall of the machine sealing box 13 is provided with an annular rectangular convex edge 18, and the annular rectangular convex edge 18 on the inner wall of the machine sealing box 13 is correspondingly matched with the annular rectangular groove 17 on the side wall of the auxiliary impeller 15.
The auxiliary impeller 15 and the rotating shaft 10 rotate synchronously, the annular rectangular groove 17 rotates relative to an annular rectangular rib 18 arranged on the inner wall of the sealing box 13, and a rotary sealing air flow is formed at the joint, so that the sealing effect is improved.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a have balanced axial force sediment stuff pump sealing device which characterized in that: the axial-flow type impeller comprises a shaft, wherein a shaft sleeve is arranged on the shaft, a mechanical seal is arranged on the shaft sleeve, a mechanical seal box is arranged outside the mechanical seal box, an auxiliary impeller is additionally arranged on the shaft between the mechanical seal box and an impeller, a first end face is arranged on the auxiliary impeller, a plurality of groups of blades are arranged on the first end face, and the blades are of arc-shaped structures.
2. The slurry pump seal with balanced axial force of claim 1, wherein: and a plurality of groups of blades arranged on the auxiliary impeller are opposite to the direction of the blades of the impeller.
3. The slurry pump seal with balanced axial force of claim 1, wherein: the side wall of the auxiliary impeller is provided with an annular rectangular groove, the inner wall of the machine seal box is provided with an annular rectangular convex edge, and the annular rectangular convex edge on the inner wall of the machine seal box is correspondingly matched with the annular rectangular groove on the side wall of the auxiliary impeller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220889453.4U CN217129892U (en) | 2022-04-18 | 2022-04-18 | Slurry pump sealing device with balanced axial force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220889453.4U CN217129892U (en) | 2022-04-18 | 2022-04-18 | Slurry pump sealing device with balanced axial force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217129892U true CN217129892U (en) | 2022-08-05 |
Family
ID=82648736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220889453.4U Active CN217129892U (en) | 2022-04-18 | 2022-04-18 | Slurry pump sealing device with balanced axial force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217129892U (en) |
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2022
- 2022-04-18 CN CN202220889453.4U patent/CN217129892U/en active Active
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