CN200968320Y - High pressure wear resistant centrifugal pump - Google Patents
High pressure wear resistant centrifugal pump Download PDFInfo
- Publication number
- CN200968320Y CN200968320Y CN 200620124811 CN200620124811U CN200968320Y CN 200968320 Y CN200968320 Y CN 200968320Y CN 200620124811 CN200620124811 CN 200620124811 CN 200620124811 U CN200620124811 U CN 200620124811U CN 200968320 Y CN200968320 Y CN 200968320Y
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- CN
- China
- Prior art keywords
- pump
- wear
- impeller
- high pressure
- pump body
- 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
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Abstract
The utility model relates to a high pressure wearable centrifugal pump applied to coal chemical industry such as coal liquefaction, coal replace oil and coal conversion to oil, comprising a pump body, an impeller, a pump shaft, a front cover and a bearing box. The pump body is fixed with the front cover and bearing box respectively. The pump shaft is fixed in the bearing box by the bearing, with one end fixed with the impeller. The inner cavity of the pump body is equipped with wearable liner pipe. The front and back lining boards made of wearable materials are arranged among the impeller, front cover and pump body. The centrifugal pump is characterized in that: the wearable ring with L-shaped structure is arranged between the front lining board and the pump body, and is pressed in the pump body by the front lining board. The utility model can not only meet 12Mpa high pressure in the coal chemical industry, but also meet the requirement of high pressure and wearable performance, prolong the maintenance and service periods of the pump and reduce the production cost.
Description
Technical field: the utility model relates to a kind of centrifugal pump, particularly relates to a kind of centrifugal pump that applies to the High Temperature High Pressure chemical industry.
Background technique: the High Temperature High Pressure chemical centrifugal pump is mainly used coal liquefaction, coal for replacing oil and coal system wet goods Coal Chemical Industry industry, and the technical performance index of pump requires: design pressure≤12MPa; Temperature≤300 ℃; Rotating speed≤3000rpm.And need bear corrosion such as coal ash requirement, this pump requires the Rockwell hardness of wearing piece about 58-62, and the pump housing also need bear the requirement of high-order high pressure, according to the relevant Searches of Patent Literature, at present the high-pressure anti-wear centrifugal pump is provided with wear-resisting bushing pipe at pump housing inner chamber, is provided with preceding liner plate and the rear lining plate that high-abrasive material is made between impeller and protecgulum, the pump housing.Though improved the wear-resisting property of pump, contain under the solid dielectric condition in conveying, preceding liner plate is radially still easy to wear, and liner plate does not just have wear-resisting effect before the wearing and tearing back.
Summary of the invention: the purpose of this utility model is to avoid above-mentioned the deficiencies in the prior art part exactly and a kind of novel high-pressure wear-resistant centrifugal pump is provided, it can satisfy centrifugal pump and keep not having leakage when the arbitrary medium of the medium-term and long-term conveying of Coal Chemical Industry High Temperature High Pressure, can satisfy high reliability, high stability and flexible tracing ability under high pressure again.
The purpose of this utility model is achieved in that a kind of novel high-pressure wear-resistant centrifugal pump comprises the pump housing, impeller, pump shaft, protecgulum and bearing housing, the described pump housing one end and described protecgulum link together, the other end and bearing housing fix, described pump shaft by bearing fixing in described bearing housing; Be fixed with impeller at described pump shaft one end; Be provided with wear-resisting bushing pipe at described pump housing inner chamber, liner plate and rear lining plate before between described impeller and protecgulum, the pump housing, being provided with; It is characterized in that: be provided with wear ring between the liner plate and the pump housing before described, described wear ring is compressed in the pump housing by preceding liner plate.
The utility model compared with prior art has following advantage:
1. between described impeller and protecgulum, the pump housing, be provided with the front and back liner plate that high-abrasive material is made, overcome and carry of the friction of high speed medium in the pump using process, shortened the maintenance and the maintenance period of pump, reduced the cost of production of factory the pump housing, pump cover and impeller;
2. owing to wear ring is arranged, improved the radially wear resistance of the pump housing, guaranteed the unlikely decline of efficient of pump in the axial end face design of the pump housing;
3. because wear ring is designed to " L " type structure, changed the medium back flow direction, Pump Suction Nozzle washed away influence degree for minimum, the working life of further improving pump;
4. because preceding liner plate and wear ring are designed to one, both guarantee the design rationality of wear ring, guaranteed the convenience of this part replacement again.
Description of drawings: Fig. 1 is the structural representation of novel high-pressure wear-resistant centrifugal pump described in the utility model
Fig. 2 is the partial enlarged drawing shown in Fig. 1
1. liner plate 5. wear rings before wear-resisting bushing pipe 2. protecgulums 3. pump housings 4.
6. rear lining plate 7. impellers 8. bearing housings 9. bearings 10. pump shafts
Embodiment: as can be seen from Figure 1, a kind of novel high-pressure wear-resistant centrifugal pump comprises the pump housing 3, impeller 7, pump shaft 10, protecgulum 2 and bearing housing 8, the described pump housing 3 two ends fix with described protecgulum 2 and bearing housing 8 respectively, and described pump shaft 10 is fixed in the described bearing housing 8 by bearing 9; Be fixed with impeller 7 at described pump shaft 10 1 ends; Be provided with wear-resisting bushing pipe 1 at the described pump housing 3 inner chambers, between described impeller 7 and protecgulum 2, the pump housing 3, be provided with preceding liner plate 4 and the rear lining plate 6 that high-abrasive material is made, it is characterized in that: be provided with the wear ring 5 that high-abrasive material is made before described between the liner plate 4 and the pump housing 3, described wear ring 5 is compressed in the pump housing 3 by preceding liner plate 4.
In order to reduce the wash away influence degree of medium to inlet, described wear ring 5 is designed to " L " type structure.
Because wear ring 5 is pressed in the pump housing by liner plate, wear ring be changed and abrasion-proof backing block must be dismantled earlier, because wear ring 5 is an interference fit, its dismounting is very difficult.In order to ensure the convenience that wear ring 5 is changed, described preceding liner plate 4 is designed to one with wear ring 5.
Claims (3)
1. a high-pressure anti-wear centrifugal pump comprises the pump housing (3), impeller (7), pump shaft (10), protecgulum (2) and bearing housing (8), the described pump housing (3) two ends fix with described protecgulum (2) and bearing housing (8) respectively, and described pump shaft (10) is fixed in the described bearing housing (8) by bearing (9); Be fixed with impeller (7) at described pump shaft (10) one ends; Be provided with wear-resisting bushing pipe (1) at the described pump housing (3) inner chamber, between described impeller (7) and protecgulum (2), the pump housing (3), be provided with preceding liner plate (4) and rear lining plate (6), it is characterized in that: be provided with wear ring (5) between the liner plate before described (4) and the pump housing (3), described wear ring (5) is compressed in the pump housing (3) by preceding liner plate (4).
2. a kind of high-pressure anti-wear centrifugal pump according to claim 1 is characterized in that: described wear ring (5) is designed to " L " type structure.
3. a kind of high-pressure anti-wear centrifugal pump according to claim 1 and 2 is characterized in that: described wear ring (5) and preceding liner plate (4) are one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620124811 CN200968320Y (en) | 2006-10-30 | 2006-10-30 | High pressure wear resistant centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620124811 CN200968320Y (en) | 2006-10-30 | 2006-10-30 | High pressure wear resistant centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200968320Y true CN200968320Y (en) | 2007-10-31 |
Family
ID=38967890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620124811 Expired - Fee Related CN200968320Y (en) | 2006-10-30 | 2006-10-30 | High pressure wear resistant centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200968320Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666317B (en) * | 2009-09-18 | 2011-01-05 | 襄樊五二五泵业有限公司 | Flow passage component of high-temperature high-pressure coal chemical industry |
| CN106151053A (en) * | 2016-08-23 | 2016-11-23 | 杭州大路实业有限公司 | A kind of lined oil-slurry pump and assembling thereof and liner wear monitoring method |
-
2006
- 2006-10-30 CN CN 200620124811 patent/CN200968320Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666317B (en) * | 2009-09-18 | 2011-01-05 | 襄樊五二五泵业有限公司 | Flow passage component of high-temperature high-pressure coal chemical industry |
| CN106151053A (en) * | 2016-08-23 | 2016-11-23 | 杭州大路实业有限公司 | A kind of lined oil-slurry pump and assembling thereof and liner wear monitoring method |
| CN106151053B (en) * | 2016-08-23 | 2019-01-25 | 杭州大路实业有限公司 | A kind of lined oil-slurry pump and its assembly and liner wear monitoring method |
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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: 20071031 Termination date: 20141030 |
|
| EXPY | Termination of patent right or utility model |