CN200940591Y - Mouth-ring seal structure of centrifugal pump/vane wheel - Google Patents
Mouth-ring seal structure of centrifugal pump/vane wheel Download PDFInfo
- Publication number
- CN200940591Y CN200940591Y CN 200620106723 CN200620106723U CN200940591Y CN 200940591 Y CN200940591 Y CN 200940591Y CN 200620106723 CN200620106723 CN 200620106723 CN 200620106723 U CN200620106723 U CN 200620106723U CN 200940591 Y CN200940591 Y CN 200940591Y
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump
- centrifugal pump
- seal structure
- ring 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 - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005192 partition Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 9
- 238000007789 sealing Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a centrifugal pump impeller wear ring seal structure. Water inlet combining part of impeller and pump body is arranged with a cavity which is composed by the pump body and guide vane, and a first O shape seal cycle ring is arranged in the cavity. The useful effect of the utility model is that the first O shape cycle ring is laid on the pump body and impeller wear ring and shows sliding coordination due to the pressure difference, therefore reducing the clearance between rotation part impeller of high partition and low pressure area and fixed part pump body, and improving the whole work efficiency of the centrifugal pump.
Description
Technical field
The utility model relates to a kind of seal arrangement that is used for centrifugal pump, mainly is a kind of centrifugal pump impeller control ring seal structure.
Background technique
Centrifugal pump is a kind of machinery, is widely used, and is of a great variety, and 4 kinds of division method are arranged usually: the rotating shaft position according to pump can divide horizontal and vertical two kinds.Be divided into two kinds of single suction and double suctions according to the liquid suction.Can be divided into single-stage and multistage two kinds according to the number on the pump shaft impeller.Multistage is exactly on same pump shaft, loads onto several impellers, and liquid successively by each impeller, is equivalent to a plurality of single-stage pumps and is cascaded in pump, can produce very high pressure.
Centrifugal pump is to carry liquid by the centrifugal force that impeller produced of high speed rotating, the rotation of blade force fluid in the impeller, liquid under action of centrifugal force to around throw away.Liquid in the pump is when throwing out, and new liquid enters in the pump under the effect of atmospheric pressure.So liquid continuously flows out in pump.
The effect of impeller is that the liquid energy of the impeller of flowing through is increased, and the effect of the pump housing is to collect the highly pressurised liquid that flows out in the impeller.Impeller is a high speed rotating, and the pump housing is fixed, has relative movement between the impeller and the pump housing, so be Spielpassung.The cavity that the impeller and the pump housing constituted exists pressure reduction between the import of impeller and outlet.Lift of pump is high more, and this pressure reduction is just big more.So have partially liq certainly by impeller and pump housing gap (as the relative movement gap location 15 of Fig. 1), flow to the low pressure area 13 of impeller inlet from the zone of high pressure 14 of impeller outlet, in the pump housing, circulate, certainly will influence the efficient of pump like this.This gap is more little, and hydraulic loss is just more little, but just high more to the requirement on machining accuracy and the processing cost of corresponding part.So this is a pair of contradiction, the artificer must find balance between this is to contradiction.
Summary of the invention
The utility model will solve the shortcoming of above-mentioned prior art, and a kind of centrifugal pump impeller control ring seal structure is provided.
The utility model solves the technological scheme that its technical problem adopts: this centrifugal pump impeller control ring seal structure, the water intake cooperation place of the impeller and the pump housing are provided with a cavity that is made of the pump housing and stator, are provided with an O RunddichtringO in this cavity.
The effect that the utility model is useful is: owing to the reason of pressure difference, so an O type circle leans against on the pump housing and the impeller port ring, and be and be slidingly matched, thereby significantly reduced the rotatable parts impeller that cuts off high and low nip and the gap between the fixed component pump housing, improved the whole work efficiency of centrifugal pump.
Description of drawings
Fig. 1 is the main TV structure schematic representation of prior art;
Fig. 2 is a main TV structure schematic representation of the present utility model;
Description of reference numerals: the pump housing 1, impeller 2, motor shaft 3, mechanical seal 4, sealing seat board 5, stator 6, plug 7, the one O RunddichtringOs 8, the two O RunddichtringOs 9, the three O RunddichtringOs 10, water intake 11, water outlet 12, low pressure area 13, zone of high pressure 14, relative movement gap location 15.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Centrifugal pump impeller control ring seal structure described in the utility model in the application of the horizontal single stage centrifugal pump of stainless steel as shown in Figure 2, this centrifugal pump comprises the pump housing 1 and impeller 2, impeller 2 is fixedlyed connected with motor shaft 3, and water intake 11 axially is connected with impeller 2, and water outlet 12 radially is connected with impeller 2.The water intake cooperation place of the impeller 2 and the pump housing 1 is provided with a cavity that is made of the pump housing 1 and stator 6, is provided with an O RunddichtringO 8 in this cavity.A described O RunddichtringO 8 is to lean against on the choma of the pump housing 1 and impeller 2, and is and is slidingly matched, thereby has significantly reduced the gap of 1 of the rotatable parts impeller 2 that cuts off zone of high pressure 14, low pressure area 13 and the fixed component pump housing.The top of described impeller 2 is provided with sealing seat board 5, and sealing seat board 5 is sleeved on the motor shaft 3 and adopts mechanical seal 4 to seal, and is provided with the 3rd O RunddichtringO 10 between sealing seat board 5 and the pump housing 1 shell.The described pump housing 1 is provided with the plug 7 that is used to charge and discharge water, is provided with the 2nd O RunddichtringO 9 between the outer wall of the plug 7 and the pump housing 1.
Claims (2)
1, a kind of centrifugal pump impeller control ring seal structure is characterized in that: the water intake cooperation place of the impeller (2) and the pump housing (1) is provided with a cavity that is made of the pump housing (1) and stator (6), is provided with an O RunddichtringO (8) in this cavity.
2, centrifugal pump impeller control ring seal structure according to claim 1 is characterized in that: a described O RunddichtringO (8) is to lean against on the choma of the pump housing (1) and impeller (2), and is and is slidingly matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106723 CN200940591Y (en) | 2006-08-15 | 2006-08-15 | Mouth-ring seal structure of centrifugal pump/vane wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106723 CN200940591Y (en) | 2006-08-15 | 2006-08-15 | Mouth-ring seal structure of centrifugal pump/vane wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200940591Y true CN200940591Y (en) | 2007-08-29 |
Family
ID=38746768
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620106723 Expired - Lifetime CN200940591Y (en) | 2006-08-15 | 2006-08-15 | Mouth-ring seal structure of centrifugal pump/vane wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200940591Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321950A (en) * | 2013-07-02 | 2013-09-25 | 台州豪贝泵业有限公司 | Self-adaptive opening ring adjusting device for pump |
-
2006
- 2006-08-15 CN CN 200620106723 patent/CN200940591Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321950A (en) * | 2013-07-02 | 2013-09-25 | 台州豪贝泵业有限公司 | Self-adaptive opening ring adjusting device for pump |
| CN103321950B (en) * | 2013-07-02 | 2015-09-16 | 台州豪贝泵业有限公司 | A kind of pump adaptivity regulates choma device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HANGZHOU NANFANG SPECIAL PUMP CO., LTD. Free format text: FORMER OWNER: SHEN JINHAO Effective date: 20091225 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20091225 Address after: Renhe District, Renhe Town, Yuhang District, Zhejiang, Hangzhou Province, China: 311107 Patentee after: Hangzhou Nanfang Special Pump Industry Co., Ltd. Address before: Hangzhou Yuhang Nanfang special pump industry Co., Ltd., Renhe Town, Hangzhou, Zhejiang, China: 311107 Patentee before: Shen Jinhao |
|
| ASS | Succession or assignment of patent right |
Owner name: NANFANG PUMP INDUSTRY CO., LTD. Free format text: FORMER OWNER: HANGZHOU NANFANG SPECIAL PUMP INDUSTRY CO., LTD. Effective date: 20110615 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20110615 Address after: 311107 Renhe District, Renhe Town, Yuhang District, Zhejiang, Hangzhou Patentee after: Nanfang Pump Industry Co.,Ltd. Address before: 311107 Renhe District, Renhe Town, Yuhang District, Zhejiang, Hangzhou Patentee before: Hangzhou Nanfang Special Pump Industry Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070829 |
|
| EXPY | Termination of patent right or utility model |