CN203717930U - Air seal part for powder separator impeller - Google Patents
Air seal part for powder separator impeller Download PDFInfo
- Publication number
- CN203717930U CN203717930U CN201420003227.7U CN201420003227U CN203717930U CN 203717930 U CN203717930 U CN 203717930U CN 201420003227 U CN201420003227 U CN 201420003227U CN 203717930 U CN203717930 U CN 203717930U
- Authority
- CN
- China
- Prior art keywords
- ring
- seal
- air
- circular
- impeller
- 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
Links
- 239000000843 powder Substances 0.000 title claims abstract description 29
- 238000013016 damping Methods 0.000 claims abstract description 5
- 239000003570 air Substances 0.000 description 8
- 239000000463 material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000012080 ambient air Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an air seal part for a powder separator impeller. The air seal part comprises inner and outer circular sleeves which are fixed integrally through left and right seal rings arranged at an interval axially. A circular groove in clearance fit with the impeller is opened in the end face of the right seal ring, and air holes are formed in the bottom of the circular groove. A connector for being fixed with a powder separator casing is formed in the left seal ring. An adjustment ring is fixed in a circular cavity defined by the inner and outer circular sleeves and the left and right seal rings and divides the circular cavity into a left circular chamber and a right circular chamber. A flow guide hole for being communicated with an air guide tube of the powder separator is formed in the outer circular sleeve of the left circular chamber, and damping holes are formed in the circular face of the adjustment ring. The air seal part has the advantages that the uniformity degree of the air flow in the circumferential direction at the air seal position is improved, the air seal effect is good, and the powder product fineness is effectively controlled.
Description
Technical field
The utility model relates to seal, especially relates to the seal for powder concentrator impeller.
Background technique
The end face that traditional powder concentrator impeller seal coordinates with impeller is plane structure or labyrinth structure; Seal is integral type with housing relation, or end face only has the removable liner plate of one deck; Seal inside is bypass structure.The end face coordinating with impeller due to seal is that plane is to plane structure, band powder air-flow is easily from passing through here, and suction port air pipe only has a place in a circumferential direction, for non-symmetry structure, cause air-flow at the inner skewness of seal, thereby cause the air-flow of hermetic seal place to there are differences in a circumferential direction, there is hermetic seal inefficacy in part even, causes running thick generation.And the end face of seal is while being labyrinth structure, when there is a small amount of material powder inside, labyrinth, these material powder are difficult for being discharged from labyrinth structure, instead aggravate the wearing and tearing of hermetic seal place, hermetic seal are lost efficacy very soon.Meanwhile, after the wearing and tearing of seal air channel, can not change, or change whole housing, or built-up welding, and built-up welding easily causes that distortion causes powder concentrator hydraulic performance decline, and heavy parts Boring difficulty is large.
Summary of the invention
The utility model object is to provide a kind of seal for powder concentrator impeller.
For achieving the above object, the utility model is taked following technical proposals:
Seal for powder concentrator impeller described in the utility model, comprises inside and outside ring set, between described inside and outside ring set, by spaced left and right seal ring vertically, is fixed as one; Described right seal ring end face offers the annular groove coordinating with impeller clearance, and the groove bottom of described annular groove offers air hole; On described left seal ring, be provided with for the fixing link of powder concentrator; In the ring cavity that inside and outside ring set and left and right seal ring surround, be fixed with adjustment ring, described adjustment ring is divided into left and right two ring casings by described ring cavity; Be positioned on the exterior ring cap of described left ring casing and offer for being communicated with the pod apertures of powder concentrator air pipe; On the anchor ring of described adjustment ring, offer damping hole.
Described link is the uniform a plurality of bolt hole seats that are arranged on described left seal ring.
The utility model advantage is to coordinate with impeller clearance by the annular groove on described right seal ring end face, so plays band powder air-flow and is not easy from passing through here, avoids again the wear phenomenon that accumulated powder causes to occur; When the utility model weares and teares, can change and need not change powder concentrator from housing dismounting, the processing of housing simultaneously becomes the simplest; The offering of damping hole in described adjustment ring, has improved hermetic seal place air-flow homogenization degree in a circumferential direction, and hermetic seal is effective, and powder product fineness is effectively controlled.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is use view of the present utility model.
Embodiment
As shown in Figure 1, 2, the seal for powder concentrator impeller described in the utility model, comprises inside and outside ring set 1,2, between described inside and outside ring set 1,2, by spaced left and right seal ring 3,4 vertically, is fixed as one; Described right seal ring 4 end faces offer the annular groove with impeller 5 Spielpassung, and the groove bottom of described annular groove is uniform offers a plurality of air holes 6; On described left seal ring 3, be provided with for the fixing a plurality of bolt hole seats 12 of powder concentrator 7; In the ring cavity that inside and outside ring set 1,2 and left and right seal ring 3,4 surround, be fixed with adjustment ring 8, described adjustment ring 8 is divided into left and right two ring casings by described ring cavity; Be positioned on the exterior ring cap 2 of described left ring casing and offer the pod apertures 10 that is communicated with powder concentrator air pipe 9, for ambient air is introduced; Uniformly on the anchor ring of described adjustment ring 8 offer a plurality of damping holes 11.
The utility model working principle is summarized as follows:
Inner ring sleeve 1 ring core position is the passage that selects powder air-flow, exterior ring cap 2 one end communicate with atmosphere by air pipe 9, in the annular groove groove bottom combining with impeller 5 end faces, there is air hole 6, between rotary blade 5 end faces and annular groove, there is small gap, under the effect of grinding machine external pressure and grinding machine internal negative pressure, air-flow, by this small gap, forms certain air-flow velocity, this air-flow can effectively prevent that air-flow with powder from, from passing through, playing the thick function of said anti-race in industry here.
Claims (2)
1. for a seal for powder concentrator impeller, it is characterized in that: comprise inside and outside ring set (1,2), between described inside and outside ring set (1,2), by spaced left and right seal ring (3,4) vertically, be fixed as one; Described right seal ring (4) end face offers the annular groove with impeller (5) Spielpassung, and the groove bottom of described annular groove offers air hole (6); On described left seal ring (3), be provided with for the fixing link of powder concentrator (7); In the ring cavity that inside and outside ring set (1,2) and left and right seal ring (3,4) surround, be fixed with adjustment ring (8), described adjustment ring (8) is divided into left and right two ring casings by described ring cavity; Be positioned on the exterior ring cap (2) of described left ring casing and offer the pod apertures (10) for being communicated with powder concentrator air pipe (9); On the anchor ring of described adjustment ring (8), offer damping hole (11).
2. according to claim 1 for the seal of powder concentrator impeller, it is characterized in that: described link is the uniform a plurality of bolt hole seats (12) that are arranged on described left seal ring (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003227.7U CN203717930U (en) | 2014-01-04 | 2014-01-04 | Air seal part for powder separator impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420003227.7U CN203717930U (en) | 2014-01-04 | 2014-01-04 | Air seal part for powder separator impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717930U true CN203717930U (en) | 2014-07-16 |
Family
ID=51157082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420003227.7U Expired - Lifetime CN203717930U (en) | 2014-01-04 | 2014-01-04 | Air seal part for powder separator impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542936A (en) * | 2016-06-26 | 2018-01-05 | 哈尔滨盛迪电力设备有限公司 | The double air ring sealing devices of magnetic suspension positioning |
-
2014
- 2014-01-04 CN CN201420003227.7U patent/CN203717930U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107542936A (en) * | 2016-06-26 | 2018-01-05 | 哈尔滨盛迪电力设备有限公司 | The double air ring sealing devices of magnetic suspension positioning |
| CN107542936B (en) * | 2016-06-26 | 2024-02-09 | 哈尔滨盛迪电力设备有限公司 | Magnetic suspension positioning double-airflow ring sealing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |
|
| CX01 | Expiry of patent term |