CN202991668U - Wear resistant centrifugal pump with flushing hole - Google Patents
Wear resistant centrifugal pump with flushing hole Download PDFInfo
- Publication number
- CN202991668U CN202991668U CN 201220603385 CN201220603385U CN202991668U CN 202991668 U CN202991668 U CN 202991668U CN 201220603385 CN201220603385 CN 201220603385 CN 201220603385 U CN201220603385 U CN 201220603385U CN 202991668 U CN202991668 U CN 202991668U
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- China
- Prior art keywords
- pump
- impeller
- flushing
- hole
- friction rings
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- Expired - Fee Related
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Abstract
The utility model relates to a centrifugal pump, and particularly relates to a wear resistant centrifugal pump with flushing holes. The centrifugal pump provided includes a pump casing, a pump cover, an impeller shaft, an impeller, two front friction rings, and two rear friction rings, wherein the impeller is arranged in a cavity formed by the pump casing and the pump cover, the two front friction rings are arranged at the cooperative gap of the impeller and the pump casing, the two rear friction rings are arranged at the cooperative gap of the impeller and the pump cover, the impeller is driven by a power device via the impeller shaft, and the centrifugal pump provided is characterized by further including a front flushing hole and a rear flushing hole, the front flushing hole is arranged in the pump casing corresponding to the two front friction rings, and the rear flushing hole is arranged in the pump cover corresponding to the two rear friction rings. Therefore, hard particles between the friction rings can be cleaned at any time by flushing liquor to provide a stable work condition for the centrifugal pump.
Description
Technical field:
The utility model relates to a kind of centrifugal pump, especially a kind of wear-resistant centrifugal pump with flushing hole.
Background technique:
Carry out in oil pumping work at centrifugal pump, oil product is sucked by suction port, discharges after impeller improves pressure.The liquid of impeller outlet and entrance has certain pressure difference, for the liquid that prevents high pressure turns back to impeller eye by impeller outlet along the impeller outside, reduces the efficient of pump, needs two friction rings of outside installing that enter at pump case and impeller.For the liquid that prevents high pressure flows back to pump intake at the opposite side of impeller by equalizing orifice, also need also to be equiped with two friction rings at pump cover and impeller place.The gap of two friction rings of two places installing is very little, friction ring adopts high-abrasive material to make, but usually contain harder objuct matter such as coke granule in oil product, because existing abrasive acrion, coke granule make friction ring very easy to wear, the pump running can find that in the near future flow, lift descend, the pump case heating, the efficient of pump obviously descends, and makes pump performance not reach production requirement.Because oil product a large amount of circulations in pump produce frictional heat, the pump case temperature is raise, serious meeting makes whole centrifugal pump damage, and causes a large amount of economic losses.
The model utility content:
The technical problems to be solved in the utility model is: the efficient centrifugal pump of effectively removing the impurity in oil product is provided.
in order to solve the above problems, the utility model provides a kind of wear-resistant centrifugal pump with flushing hole, include pump case, pump cover, impeller shaft, impeller, friction ring after two front friction rings and two, also include front flushing hole and backlash hole flushing, wherein impeller is included in the cavity of pump case and pump cover formation, two front friction rings are arranged on the gap location of impeller and pump case cooperation, after two, friction ring is arranged on the gap location of impeller and pump cover cooperation, impeller is driven by power plant by impeller shaft, described front flushing hole is arranged on pump case corresponding to two front friction rings, described backlash hole flushing is arranged on the pump cover that after two, friction ring is corresponding.
use the novel beneficial effect of this use: the centrifugal pump of mentioning due to the design is used in the extraction that contains contaminant fluid, usually pollutant contains harder solid particle, the wearing and tearing of friction ring have been caused when time between these particle engaging friction rings, increased the gap between impeller and pump case and pump cover, will affect the working efficiency of centrifugal pump, present described flushing hole is arranged on pump case corresponding to two front friction rings, the backlash hole flushing is arranged on the pump cover that after two, friction ring is corresponding, pour into flushing hole by washing solution and just can clean out at any time grit thing between friction ring, allow centrifugal pump that a stable working environment can be arranged.
Further, in order to allow washing solution better friction ring be cleaned, described flushing hole is that the outside diameter is greater than the ladder hole of the inside diameter.
At last, the particle in pollutant is more, intercept it, prevents that it from entering in the gap of impeller and pump case and pump cover, and described backlash hole flushing place is provided with one deck wearing plate.
Description of drawings:
Fig. 1 is the wear-resistant centrifugal pump part section structural representation with flushing hole of the present utility model;
Embodiment:
Below in conjunction with drawings and Examples, technical solutions of the utility model are further illustrated:
as shown in Figure 1, a kind of wear-resistant centrifugal pump with flushing hole, include pump case 1, pump cover 8, impeller shaft 9, impeller 3, friction ring 4 after two front friction rings 5 and two, also include front flushing hole 2 and backlash hole flushing 6, wherein impeller 3 is included in the cavity of pump case 1 and pump cover 8 formation, two front friction rings 5 are arranged on the gap location of impeller 3 and pump case 1 cooperation, after two, friction ring 4 is arranged on the gap location of impeller 3 and pump cover 8 cooperations, impeller 3 is driven by power plant by impeller shaft 9, described front flushing hole 2 is arranged on the pump case 1 of two front friction ring 5 correspondences, described backlash hole flushing 6 is arranged on the pump cover 8 of friction ring 4 correspondences after two.
the present embodiment centrifugal pump is used in the extraction of oil product, usually contain harder solid coke particle in oil product, the wearing and tearing of friction ring have been caused in the time of between these particle engaging friction rings, increased the gap between impeller 3 and pump case 1 and pump cover 8, will affect the working efficiency of centrifugal pump, flushing hole 2 before being provided with on the pump case of two front friction ring 5 correspondences, be provided with backlash hole flushing 6 on the pump cover 8 of friction ring 4 correspondences after two, pour into the coke granule that can clean out at any time in flushing hole between friction ring by washing solution, the coke of removing can be discharged to outside pump along with washing solution enters liquid outlet, make centrifugal pump that a stable working environment can be arranged.
Use the pressure of washing solution than the pump intake 10 high 0.05～0.2MPa of oil product pressure, allow front flushing hole 2 and backlash hole flushing 6 be designed to the outside diameter shoulder hole larger than the inside, can carry out washing solution is carried out supercharging, for the coke granule of engaging friction czermak space, cleaning performance is better like this.
If the particle in pollutant is more, prevent that it from entering in the gap of impeller and pump case 1 and pump cover 8, backlash hole flushing place is provided with one deck wearing plate 7, and so more effectively STRENGTH ON COKE can stop, reaches best extraction effect.
Above-described is only preferred implementation of the present utility model; should be understood that; for a person skilled in the art; under the prerequisite that does not break away from the utility model structure; can also make some distortion and improvement, such as, the type of power plant etc. changed; these also should be considered as protection domain of the present utility model, and these can not affect effect and practical applicability that the utility model is implemented.
Claims (3)
1. wear-resistant centrifugal pump with flushing hole, include pump case, pump cover, impeller shaft, impeller, friction ring after two front friction rings and two, wherein impeller is included in the cavity of pump case and pump cover formation, two front friction rings are arranged on the gap location of impeller and pump case cooperation, after two, friction ring is arranged on the gap location of impeller and pump cover cooperation, impeller is driven by power plant by impeller shaft, it is characterized in that: also include front flushing hole and backlash hole flushing, described front flushing hole is arranged on pump case corresponding to two front friction rings, described backlash hole flushing is arranged on the pump cover that after two, friction ring is corresponding.
2. the wear-resistant centrifugal pump with flushing hole according to claim 1, it is characterized in that: described front flushing hole and backlash hole flushing are shoulder hole.
3. the wear-resistant centrifugal pump with flushing hole according to claim 1, it is characterized in that: described backlash hole flushing place is provided with wearing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603385 CN202991668U (en) | 2012-11-15 | 2012-11-15 | Wear resistant centrifugal pump with flushing hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220603385 CN202991668U (en) | 2012-11-15 | 2012-11-15 | Wear resistant centrifugal pump with flushing hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991668U true CN202991668U (en) | 2013-06-12 |
Family
ID=48562852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220603385 Expired - Fee Related CN202991668U (en) | 2012-11-15 | 2012-11-15 | Wear resistant centrifugal pump with flushing hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991668U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736481A (en) * | 2014-12-31 | 2016-07-06 | 通用电气公司 | Dirt extraction apparatus for a gas turbine engine |
-
2012
- 2012-11-15 CN CN 201220603385 patent/CN202991668U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736481A (en) * | 2014-12-31 | 2016-07-06 | 通用电气公司 | Dirt extraction apparatus for a gas turbine engine |
| US10267179B2 (en) | 2014-12-31 | 2019-04-23 | General Electric Company | Dirt extraction apparatus for a gas turbine engine |
| CN105736481B (en) * | 2014-12-31 | 2019-11-19 | 通用电气公司 | Dust extraction element for gas-turbine unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131115 |