CN202851437U - Friction seal device for pump - Google Patents
Friction seal device for pump Download PDFInfo
- Publication number
- CN202851437U CN202851437U CN 201220558981 CN201220558981U CN202851437U CN 202851437 U CN202851437 U CN 202851437U CN 201220558981 CN201220558981 CN 201220558981 CN 201220558981 U CN201220558981 U CN 201220558981U CN 202851437 U CN202851437 U CN 202851437U
- Authority
- CN
- China
- Prior art keywords
- impeller
- ring
- seal ring
- pump
- seal
- 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 - Fee Related
Links
- 210000003660 Reticulum Anatomy 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
Abstract
The utility model relates to the technical field of water feed pumps, in particular to a friction seal device for a pump. A pump body seal ring and an impeller seal ring are arranged on the friction seal device, the pump body seal ring and the impeller seal ring are rings defined by long-strip-shaped plates in an enclosed mode. The friction seal device is characterized in that the inner surface of the pump body seal ring and the outer surface of the impeller seal ring are respectively provided with a honeycomb-type groove. Due to the structure, the friction seal device has the advantages that the structure is reasonable, seal performance is good, throttling and pressure reduction can be achieved, abrasion is reduced, occlusion is prevented, wet critical revolutions and support stiffness of impellers are improved, and damping performance is improved when effective rotation between the impellers and the seal rings is achieved, and the like.
Description
Technical field
The utility model relates to the feed water pump technical field, specifically the friction sealed device of a kind of pump.
Background technique
As everyone knows, usually adopt seal ring seal between impeller in the pump housing and the pump housing, need certain gap, interval between casing ring and the impeller ring, so that impeller moves with respect to the pump housing, the surface that existing casing ring is relative with impeller ring is smooth surface, in the process of pump housing draining, because the pressure of pump housing water intake is greater than the pressure of pump housing drain opening, make water lead drain opening from the central inlet of impeller through the guide plate of impeller, the part high pressure water is the smooth unresisted low-pressure cavity that is back in space between impeller ring and casing ring then, cause the seal failure of pump, reduced damping characteristic, strengthen the wearing and tearing of seal ring, greatly reduced the stability of impeller, increased waterpower self-excited vibration.
Summary of the invention
The purpose of this utility model is to solve above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, sealability is high, in the effective rotation that realizes between impeller and the seal ring, can also throttling, step-down, reduce wear, prevent interlock, the wet criticality revolution that improves impeller and impeller support stiffness, improve the friction sealed device of pump of damping characteristic.
The technological scheme that its technical problem that solves the utility model adopts is:
The friction sealed device of a kind of pump, be provided with casing ring and impeller ring, casing ring and impeller ring are respectively to crowd around the annulus that surrounds by long strip sheet material, it is characterized in that casing ring internal surface and impeller seals ring outer surface are respectively equipped with the honeycomb groove, be beneficial to increase the damping characteristic between the pump housing and the impeller, sealability is high, reduce wear with prevent interlock, hold the impurity ability strong, eliminating waterpower self-excited vibration, strengthening and extremely strong function is being arranged aspect the impeller stability simultaneously.
The utility model is owing to adopting said structure, have rational in infrastructure, sealability is high, in the effective rotation that realizes between impeller and the seal ring, can also throttling, step-down, reduce wear, prevent interlock, the wet criticality revolution that improves impeller and impeller support stiffness, improve the advantage such as damping characteristic.
Description of drawings
Fig. 1 is partial structurtes schematic diagram of the present utility model.
Fig. 2 is the structural representation of the utility model middle pump body seal ring.
Fig. 3 is the structural representation of impeller ring in the utility model.
Reference character: casing ring 1, impeller ring 2, honeycomb groove 3,4.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
As shown in drawings, the friction sealed device of a kind of pump, be provided with casing ring 1 and impeller ring 2, casing ring 1 and impeller ring 2 are respectively to crowd around the annulus that surrounds by long strip sheet material, it is characterized in that casing ring 1 internal surface and impeller ring 2 outer surfaces are respectively equipped with honeycomb groove 3,4, be beneficial to increase the damping characteristic between casing ring 1 and the impeller ring 2, sealability is high, reduce wear with prevent interlock, hold the impurity ability strong, eliminating waterpower self-excited vibration, strengthening and extremely strong function is being arranged aspect the impeller stability simultaneously.
The utility model is in the process of draining, because the pressure of pump housing water intake is greater than the pressure of pump housing drain opening, make water lead drain opening from the central inlet of impeller through the guide plate of impeller, owing to being respectively equipped with honeycomb groove 3 between impeller ring 2 outer surfaces and casing ring 1 internal surface, 4, make and produce friction between impeller and the pump housing friction pair, stop the water of hyperbaric chamber to be back to low-pressure cavity, improve the volumetric efficiency of pump apparatus, reduce wear, the utility model can be by regulating the size of the honeycomb of surface of friction pair between casing ring and the impeller ring, quantity, distributing positions etc. adapt to the rotating equipment of various rotating speed.
The utility model is owing to adopting said structure, have rational in infrastructure, sealability is high, in the effective rotation that realizes between impeller and the seal ring, can also throttling, step-down, reduce wear, prevent interlock, the wet criticality revolution that improves impeller and impeller support stiffness, improve the advantage such as damping characteristic.
Claims (1)
1. friction sealed device of pump, be provided with casing ring and impeller ring, casing ring and impeller ring are respectively to crowd around the annulus that surrounds by long strip sheet material, it is characterized in that casing ring internal surface and impeller seals ring outer surface are respectively equipped with the honeycomb groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558981 CN202851437U (en) | 2012-10-29 | 2012-10-29 | Friction seal device for pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220558981 CN202851437U (en) | 2012-10-29 | 2012-10-29 | Friction seal device for pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851437U true CN202851437U (en) | 2013-04-03 |
Family
ID=47982644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220558981 Expired - Fee Related CN202851437U (en) | 2012-10-29 | 2012-10-29 | Friction seal device for pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851437U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107061740A (en) * | 2017-04-26 | 2017-08-18 | 北京航空航天大学 | A kind of face of cylinder carries the mechanical seal structure of honeycomb shape groove |
| CN104847687B (en) * | 2014-02-16 | 2018-12-25 | 杭州大路实业有限公司 | Drum pump novel sealing ring and preparation method thereof |
-
2012
- 2012-10-29 CN CN 201220558981 patent/CN202851437U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847687B (en) * | 2014-02-16 | 2018-12-25 | 杭州大路实业有限公司 | Drum pump novel sealing ring and preparation method thereof |
| CN107061740A (en) * | 2017-04-26 | 2017-08-18 | 北京航空航天大学 | A kind of face of cylinder carries the mechanical seal structure of honeycomb shape groove |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |