CN203532314U - Labyrinth impeller ring clearance structure - Google Patents
Labyrinth impeller ring clearance structure Download PDFInfo
- Publication number
- CN203532314U CN203532314U CN201320738911.5U CN201320738911U CN203532314U CN 203532314 U CN203532314 U CN 203532314U CN 201320738911 U CN201320738911 U CN 201320738911U CN 203532314 U CN203532314 U CN 203532314U
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- China
- Prior art keywords
- ring
- impeller
- pump
- impeller ring
- casing
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- 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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- 210000003205 muscle Anatomy 0.000 claims description 6
- 230000006837 decompression Effects 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a labyrinth impeller ring clearance structure, belongs to an impeller ring clearance throttling structure of a centrifugal pump, and solves the problems that the conventional product has larger leakage quantity during decompression throttling and the pump efficiency is influenced. The labyrinth impeller ring clearance structure comprises an impeller ring and a pump casing ring, wherein the impeller ring is assembled on an impeller, the pump casing ring and the impeller ring are correspondingly fixed on a pump casing, a clearance is maintained between the impeller ring and the pump casing ring, and a rectangular ring gear structure is arranged on an inner circle surface of the pump casing ring. Therefore, during operation of the centrifugal pump, the leakage quantity at two ends of the impeller ring clearance is reduced greatly, the volume efficiency of the pump is improved, and the pump efficiency is improved, furthermore, running cost is saved for a pump user, and the economic benefit is increased.
Description
Technical field
The utility model relates to centrifugal pump impeller sealing ring gap throttle structure.
Background technique
Existing impeller ring gap structure, adopts two discs to form closely spaced throttle structure mostly, by small annular gap step-down throttling, stops fed sheet of a media to leak.But as calculated with practice, this kind of structure is when step-down throttling, and leakage rate is bigger than normal, affects pump efficiency.
Model utility content
The technical assignment of the technical problems to be solved in the utility model and proposition is bigger than normal, the defect that affects pump efficiency of leakage rate while overcoming existing product step-down throttling, and a kind of mazy type impeller ring gap structure is provided.
For achieving the above object, mazy type impeller ring gap structure of the present utility model comprises impeller ring, casing ring, it is characterized in that: described impeller ring is assemblied on impeller, described casing ring is corresponding with described impeller ring to be fixed on the pump housing, between described impeller ring and casing ring, maintain gap, described casing ring inner headed face is provided with rectangular teeth ring structure.
As optimization technique means: described rectangular teeth ring structure is uniform vertically 3-8.
As optimization technique means: described impeller ring close-fitting on described impeller with vane rotary.
As optimization technique means: described casing ring close-fitting is on the described pump housing.Further, the described pump housing is provided with annular groove, and described casing ring is provided with ring muscle, and described ring muscle is positioned at described annular groove.
The beneficial effects of the utility model are: while making centrifugal pump operation, the leakage rate at impeller seals czermak space two ends greatly reduces, and has improved pump volumetric efficiency, thereby has improved pump efficiency.Allow pump user save operating cost, improved economic benefit.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the A portion structure enlarged view of Fig. 1;
Number in the figure explanation: 1-impeller ring, 2-casing ring, 3-rectangular teeth ring structure, the 4-pump housing, 5-impeller.
Embodiment
Below in conjunction with Figure of description, the utility model is described further.
As shown in Figure 1-2, mazy type impeller ring gap structure of the present utility model, comprise impeller ring 1, casing ring 2, impeller ring 1 is assemblied on impeller 5, casing ring 2 is corresponding with impeller ring 1 to be fixed on the pump housing 4, between impeller ring 1 and casing ring 2, maintain gap, casing ring 2 inner headed faces are provided with rectangular teeth ring structure 3, naturally, between rectangular teeth, form groove, at impeller ring and one of casing ring formation, be with closely spaced labyrinth seal structure, labyrinth seal structure can effectively stop a large amount of leakages of fed sheet of a media, improved the volumetric efficiency of pump operation, thereby improve the efficiency of pump.
Concrete, rectangular teeth ring structure 3 is uniform vertically 3-8.Impeller ring 1 close-fitting rotates with impeller 5 on impeller 5.Casing ring 2 close-fittings are on the pump housing 4.The pump housing 4 is provided with annular groove, and casing ring 2 is provided with ring muscle, and ring muscle is positioned at annular groove.
Claims (5)
1. mazy type impeller ring gap structure, comprise impeller ring (1), casing ring (2), it is characterized in that: described impeller ring (1) is assemblied on impeller (5), described casing ring (2) and described corresponding being fixed on the pump housing (4) of impeller ring (1), between described impeller ring (1) and casing ring (2), maintain gap, described casing ring (2) inner headed face is provided with rectangular teeth ring structure (3).
2. mazy type impeller ring gap structure according to claim 1, is characterized in that: described rectangular teeth ring structure (3) is uniform vertically 3-8.
3. mazy type impeller ring gap structure according to claim 1, is characterized in that: described impeller ring (1) close-fitting above rotates with impeller (5) at described impeller (5).
4. mazy type impeller ring gap structure according to claim 1, is characterized in that: described casing ring (2) close-fitting is on the described pump housing (4).
5. mazy type impeller ring gap structure according to claim 4, is characterized in that: the described pump housing (4) is provided with annular groove, and described casing ring (2) is provided with ring muscle, and described ring muscle is positioned at described annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738911.5U CN203532314U (en) | 2013-11-20 | 2013-11-20 | Labyrinth impeller ring clearance structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320738911.5U CN203532314U (en) | 2013-11-20 | 2013-11-20 | Labyrinth impeller ring clearance structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203532314U true CN203532314U (en) | 2014-04-09 |
Family
ID=50418527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320738911.5U Expired - Lifetime CN203532314U (en) | 2013-11-20 | 2013-11-20 | Labyrinth impeller ring clearance structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203532314U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114364A (en) * | 2015-08-21 | 2015-12-02 | 武汉大学 | Device for decreasing wearing degree of centrifugal pump wear rings |
| CN105240280A (en) * | 2015-10-30 | 2016-01-13 | 江苏大学 | Centrifugal pump with rectangular gear pump front cavity structure |
| CN105864096A (en) * | 2016-05-18 | 2016-08-17 | 湖南南方长河泵业有限公司 | Singe-stage double-suction split case pump with good sealing performance |
| CN108331782A (en) * | 2018-01-29 | 2018-07-27 | 陈恒平 | A kind of centrifugal pump closed type impeller |
| CN108757546A (en) * | 2018-05-02 | 2018-11-06 | 江苏大学 | A kind of centrifugal pump radial seal ring with plate guide vane |
| CN108869379A (en) * | 2018-05-02 | 2018-11-23 | 江苏大学 | A kind of centrifugal pump seal ring with axial diversion blade |
| CN108869384A (en) * | 2018-05-02 | 2018-11-23 | 江苏大学 | A kind of centrifugal pump radial seal ring with cylindrical type guide vane |
| CN109611374A (en) * | 2019-01-14 | 2019-04-12 | 北京星际荣耀空间科技有限公司 | A kind of cryogenic liquid rocket engine turbopump sandwich type labyrinth seal structure |
-
2013
- 2013-11-20 CN CN201320738911.5U patent/CN203532314U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114364A (en) * | 2015-08-21 | 2015-12-02 | 武汉大学 | Device for decreasing wearing degree of centrifugal pump wear rings |
| CN105114364B (en) * | 2015-08-21 | 2017-12-15 | 武汉大学 | A kind of device for reducing the centrifugal pump wear ring degree of wear |
| CN105240280A (en) * | 2015-10-30 | 2016-01-13 | 江苏大学 | Centrifugal pump with rectangular gear pump front cavity structure |
| CN105864096A (en) * | 2016-05-18 | 2016-08-17 | 湖南南方长河泵业有限公司 | Singe-stage double-suction split case pump with good sealing performance |
| CN108331782A (en) * | 2018-01-29 | 2018-07-27 | 陈恒平 | A kind of centrifugal pump closed type impeller |
| CN108757546A (en) * | 2018-05-02 | 2018-11-06 | 江苏大学 | A kind of centrifugal pump radial seal ring with plate guide vane |
| CN108869379A (en) * | 2018-05-02 | 2018-11-23 | 江苏大学 | A kind of centrifugal pump seal ring with axial diversion blade |
| CN108869384A (en) * | 2018-05-02 | 2018-11-23 | 江苏大学 | A kind of centrifugal pump radial seal ring with cylindrical type guide vane |
| CN108869379B (en) * | 2018-05-02 | 2020-03-31 | 江苏大学 | Centrifugal pump sealing ring with axial guide vanes |
| CN109611374A (en) * | 2019-01-14 | 2019-04-12 | 北京星际荣耀空间科技有限公司 | A kind of cryogenic liquid rocket engine turbopump sandwich type labyrinth seal structure |
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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: 20140409 |
|
| CX01 | Expiry of patent term |