CN202646132U - Sealing device for slurry pump - Google Patents
Sealing device for slurry pump Download PDFInfo
- Publication number
- CN202646132U CN202646132U CN 201220211885 CN201220211885U CN202646132U CN 202646132 U CN202646132 U CN 202646132U CN 201220211885 CN201220211885 CN 201220211885 CN 201220211885 U CN201220211885 U CN 201220211885U CN 202646132 U CN202646132 U CN 202646132U
- Authority
- CN
- China
- Prior art keywords
- pump
- mechanical seal
- impellers
- sealing device
- propeller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses a sealing device for a slurry pump. The sealing device for the slurry pump comprises a pump cover, a pump body, impellers, a bracket and a pump shaft. A mechanical seal is adopted between the pump body and the pump shaft; the front section of a mechanical seal assembly is also provided with secondary impellers. According to the sealing device for the slurry pump, through a compound sealing device formed by combining the secondary impellers and the mechanical seal, thus, outside liquid firstly passes through the secondary impellers, and the secondary impellers rotate to generate axial forces which are opposite to the impellers, and thereby, an action of balancing the axial forces is achieved. Moreover, inverse pressure generated by rotation can be used for stopping the liquid further entering into the mechanical seal, and slurry particles conveyed by the impellers can be effectively restrained, and thereby, the service life of the mechanical seal is effectively prolonged.
Description
Technical field
The utility model belongs to the pump machines equipment technical field, particularly a kind of slag stock pump seal arrangement.
Background technique
The slag stock pump is the conveying equipment of the industry solid-liquid mixture slurries such as metallurgy, mine, building materials, electric power.The slurry that the slag stock pump is carried is serious to the abrasion and corrosion of axle and sealing, and the sealing problem of slag stock pump always is the emphasis of research.Existing slag stock pump adopts mechanical seal, can't effectively suppress to starch particle from the slag that impeller end sends, and slag slurry particle is to the wearing and tearing of the mechanical seal friction width of cloth, the working life of seriously having reduced mechanical seal.
Summary of the invention
The purpose of this utility model is to damage easily for slag stock pump mechanical seal in the prior art, and working life, not long problem provided a kind of new type sealing device.
Its technical problem that solves the utility model adopt technological scheme be: a kind of slag stock pump seal arrangement, comprise pump cover, the pump housing, impeller, carriage, pump shaft, adopt mechanical seal between the pump housing and the pump shaft, at the mechanical sealing assembly leading portion sub-propeller is installed also.
The diameter of described sub-propeller is 2/3 of impeller diameter, and the width of blade of sub-propeller is 1/2 of impeller blade width.
The composite seal device that the utility model combines by sub-propeller and mechanical seal, so extraneous liquid at first passes through sub-propeller, the sub-propeller rotation produces the axial force opposite with impeller, reach the effect of balancing axial thrust, and the contrary pressure that rotation produces can stop further entering of liquid, the slag that energy establishment impeller sends is starched particle, thereby effectively raises the working life of mechanical seal.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described further.
As shown in the figure, a kind of slag stock pump seal arrangement comprises pump cover 1, the pump housing 2, impeller 3, carriage 7, pump shaft 6, adopts mechanical seal 5 between the pump housing 2 and the pump shaft 6, at mechanical seal 5 assembly leading portions sub-propeller 4 is installed also.
The composite seal device that sub-propeller 4 and mechanical seal 5 combine, so extraneous liquid at first passes through sub-propeller 4, sub-propeller 4 rotations produce the axial force opposite with impeller, reach the effect of balancing axial thrust, and the contrary pressure that rotation produces can stop further entering of liquid, the slag that energy establishment impeller 3 sends is starched particle, thereby effectively raises the working life of mechanical seal 5.
Test data proves that the diameter of sub-propeller 4 is 2/3 of impeller 3 diameters, and the width of blade of sub-propeller 4 is 1/2 o'clock of impeller 3 width of blades, more the slag slurry particle that sends of establishment impeller.
Claims (2)
1. a slag stock pump seal arrangement comprises pump cover, the pump housing, impeller, carriage, pump shaft, it is characterized in that: adopt mechanical seal between the pump housing and the pump shaft, at the mechanical sealing assembly leading portion sub-propeller is installed also.
2. slag stock pump seal arrangement as claimed in claim 1, it is characterized in that: the diameter of described sub-propeller is 2/3 of impeller diameter, the width of blade of sub-propeller is 1/2 of impeller blade width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220211885 CN202646132U (en) | 2012-05-13 | 2012-05-13 | Sealing device for slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220211885 CN202646132U (en) | 2012-05-13 | 2012-05-13 | Sealing device for slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202646132U true CN202646132U (en) | 2013-01-02 |
Family
ID=47415249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220211885 Expired - Lifetime CN202646132U (en) | 2012-05-13 | 2012-05-13 | Sealing device for slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202646132U (en) |
-
2012
- 2012-05-13 CN CN 201220211885 patent/CN202646132U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161219 Address after: No. 9 road 411201 Hunan city of Xiangtan province Jiuhua Jiuhua demonstration zone Patentee after: Leo group Hunan pump industry limited company Address before: 9 No. 411201 Hunan province Xiangtan City Jiuhua Jiuhua Industrial Park Avenue Patentee before: Hunan Leo Pumps Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |
|
| CX01 | Expiry of patent term |