CN203717428U - Centrifugal pump with rubber ring - Google Patents
Centrifugal pump with rubber ring Download PDFInfo
- Publication number
- CN203717428U CN203717428U CN201320416704.8U CN201320416704U CN203717428U CN 203717428 U CN203717428 U CN 203717428U CN 201320416704 U CN201320416704 U CN 201320416704U CN 203717428 U CN203717428 U CN 203717428U
- Authority
- CN
- China
- Prior art keywords
- impeller
- pump
- choma
- rubber
- pump housing
- 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
- 238000007789 sealing Methods 0.000 claims description 15
- 239000002184 metal Substances 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 238000010992 reflux Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a centrifugal pump with a rubber ring. The centrifugal pump is characterized in that a pump body ring 3 mounted on a pump body 1 and an impeller ring 4 mounted on an impeller 2 form a seal surface; rubber is lined on the inner wall of the pump body ring 3 or the outer wall of the impeller ring 4. According to the centrifugal pump, the seal surface is formed between the rubber and metal, so that a gap of the seal surface can be very small and even the seal surface does not have the gap, a large amount of liquid flowing back through the seal surface is reduced, the volume efficiency of the pump can be greatly improved, the performance of the pump is improved, and the locking phenomenon caused by reduction of the gap between the metal and the ring for reduction of the leakage amount in a conventional process is avoided.
Description
Technical field
The utility model relates to a kind of new centrifugal pump with rubber choma, is applicable to the centrifugal pump with shrouded impeller with choma.
Background technique
The choma that can change is equipped with respectively at part centrifugal pump body and impeller inlet outer rim place, or choma is just housed above the pump housing, because current two chomas are substantially all that metal is made, for preventing that pump in the running, the amount of unbalance of impeller causes the bending of axle, cause the factor such as phase mutual friction between impeller and the pump housing two chomas, must leave gap between the two, gap between choma is large, some meeting of the liquid throwing away from impeller be back to the import of impeller by above-mentioned gap, thereby reduce the volumetric efficiency of pump, simultaneously because the flow by above-mentioned gap strengthens, can make too early being worn of choma, choma gap continues to strengthen, can cause the flow of pump to reduce, not upper amount when serious, if reduce above-mentioned gap and may occur again the phenomenon of locking between metal choma.
Summary of the invention
In order to overcome the problem that in prior art, between impeller port ring and pump housing choma, larger gap causes pump efficiency to reduce, the purpose of this utility model is to provide a kind of Novel neck ring device that can reduce even to eliminate this gap.
For achieving the above object, the technical solution adopted in the utility model is: a pair of choma is installed between the pump housing and impeller, the pump housing choma being arranged on the pump housing forms a sealing surface with the impeller port ring being arranged on impeller, technical characterstic is to be lined with rubber on one of them choma, the pump housing choma inwall being arranged on the pump housing is lined with rubber, or the impeller port ring outer rim being arranged on impeller is lined with rubber, two chomas be shaped as cylinder ring; The impeller port ring that on the pump housing, inwall is lined with on pump housing choma and the impeller of rubber forms sealing surface, or on impeller, outer rim is lined with the pump housing choma formation sealing surface on impeller port ring and the pump housing of rubber, and the gap of this sealing surface is very little even very close to each other.
The very little sealing surface even forming in sealing surface gap that this device forms is very close to each other, and the liquid refluxing by above-mentioned sealing face leakage will reduce a lot, can increase substantially the volumetric efficiency of pump, thereby improve pump performance; This device is reasonable in design, simple in structure, easy to process, traditional firmly hard sealing surface has been changed over soft to firmly, realize even zero clearance, less gap, avoided reducing in order to reduce leakage rate in tratitional technology the locking phenomenon that the gap between metal choma occurs.
Brief description of the drawings
Fig. 1 is a kind of embodiment's sealing surface structure schematic diagram;
Fig. 2 is another kind of embodiment's sealing surface structure schematic diagram;
In figure: 1 pump housing, 2 impellers, 3 pump housing chomas, 4 impeller port rings, 5 impeller nuts,
6 pump shafts.
Embodiment
The inwall of embodiment's 1 pump housing choma is lined with rubber
Shown in Fig. 1, a kind of centrifugal pump with rubber choma, comprises the pump housing 1, impeller 2, pump housing choma 3, impeller port ring 4, impeller nut 5, pump shaft 6, in Fig. 1, pump housing choma 3 is placed in the pump housing 1, impeller port ring 4 is arranged on impeller 2, impeller 2 is pressed on pump shaft 6 by impeller nut 5, the inwall of pump housing choma 3 is lined with rubber, between pump housing choma 3 and impeller port ring 4, just form a sealing surface, and above-mentioned sealing surface is by forming between rubber and metal, contact between soft or hard face, can there is not locking phenomenon, therefore above-mentioned gap can be very little even very close to each other, reduce the liquid refluxing by above-mentioned gap, improve the volumetric efficiency of pump, also ensured the long-term efficient of pump, stable operation.
The outer wall of embodiment's 2 impeller port rings is lined with rubber
Shown in Fig. 2, a kind of centrifugal pump with rubber choma, comprises the pump housing 1, impeller 2, pump housing choma 3, impeller port ring 4, impeller nut 5, pump shaft 6, in Fig. 1, pump housing choma 3 is placed in the pump housing 1, impeller port ring 4 is arranged on impeller 2, impeller 2 is pressed on pump shaft 6 by impeller nut 5, the outer wall of impeller port ring 4 is lined with rubber, between pump housing choma 3 and impeller port ring 4, just form a sealing surface, and above-mentioned sealing surface is by forming between rubber and metal, contact between soft or hard face, can there is not locking phenomenon, therefore above-mentioned gap can be very little even very close to each other, reduce the liquid refluxing by above-mentioned gap, improve the volumetric efficiency of pump, also ensured the long-term efficient of pump, stable operation.
Claims (2)
1. the centrifugal pump with rubber choma, comprise between the pump housing (1) and impeller (2) a pair of choma is installed, the pump housing choma (3) being arranged on the pump housing (1) forms a sealing surface with the impeller port ring (4) being arranged on impeller (2), it is characterized in that: on one of them choma, be lined with rubber, pump housing choma (3) inwall being arranged on the pump housing (1) is lined with rubber, or impeller port ring (4) outer rim being arranged on impeller (2) is lined with rubber.
2. the centrifugal pump with rubber choma according to claim 1, is characterized in that: pump housing choma (3) and impeller port ring (4) are cylinder ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416704.8U CN203717428U (en) | 2013-07-15 | 2013-07-15 | Centrifugal pump with rubber ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320416704.8U CN203717428U (en) | 2013-07-15 | 2013-07-15 | Centrifugal pump with rubber ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717428U true CN203717428U (en) | 2014-07-16 |
Family
ID=51156586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320416704.8U Expired - Fee Related CN203717428U (en) | 2013-07-15 | 2013-07-15 | Centrifugal pump with rubber ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717428U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863891A (en) * | 2015-06-02 | 2015-08-26 | 沈阳潜水泵业有限公司 | Latent halogen pump casing sealing ring and impeller ring matched structure and manufacturing method thereof |
| CN106762677A (en) * | 2017-04-06 | 2017-05-31 | 安德里茨（中国）有限公司 | Multistage middle open pump |
| CN110005632A (en) * | 2019-04-28 | 2019-07-12 | 江苏大学镇江流体工程装备技术研究院 | A punching and welding centrifugal pump |
-
2013
- 2013-07-15 CN CN201320416704.8U patent/CN203717428U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104863891A (en) * | 2015-06-02 | 2015-08-26 | 沈阳潜水泵业有限公司 | Latent halogen pump casing sealing ring and impeller ring matched structure and manufacturing method thereof |
| CN106762677A (en) * | 2017-04-06 | 2017-05-31 | 安德里茨（中国）有限公司 | Multistage middle open pump |
| CN110005632A (en) * | 2019-04-28 | 2019-07-12 | 江苏大学镇江流体工程装备技术研究院 | A punching and welding centrifugal pump |
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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: 20140716 Termination date: 20210715 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |