CN213331684U - Centrifugal pump front cover with excellent impeller vibration prevention and exhaust performance - Google Patents
Centrifugal pump front cover with excellent impeller vibration prevention and exhaust performance Download PDFInfo
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- CN213331684U CN213331684U CN202021201562.XU CN202021201562U CN213331684U CN 213331684 U CN213331684 U CN 213331684U CN 202021201562 U CN202021201562 U CN 202021201562U CN 213331684 U CN213331684 U CN 213331684U
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- impeller
- centrifugal pump
- screw hole
- front cover
- protecgulum
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Abstract
The utility model discloses a prevent impeller vibration and excellent centrifugal pump protecgulum of exhaust performance, including protecgulum body, entry, export, equipment screw hole, runner, discharge valve, fixed screw hole under the impeller and on the impeller fixed screw hole, discharge valve is equipped with the backward flow mouth. The utility model discloses a specially being equipped with discharge valve on the protecgulum body, can discharging the gas that the centrifugal pump produced at the operation in-process, maintain the normal flow of centrifugal pump, through fixed screw hole under fixed screw hole and the impeller on the impeller again, further consolidate being connected of impeller and centrifugal pump protecgulum, avoid impeller and centrifugal pump protecgulum to lead to the connection of the two not hard up because of vibrations at long-time high-speed operation in-process to influence the normal use of centrifugal pump.
Description
Technical Field
The utility model relates to a centrifugal pump seals technical field, in particular to prevent impeller vibration and excellent exhaust performance's centrifugal pump protecgulum.
Background
The centrifugal pump is a pump for conveying liquid by means of centrifugal force generated when an impeller rotates, the impeller is assembled on a front cover of the centrifugal pump, the impeller and the front cover of the centrifugal pump in the prior art are fixed by the central parts of the impeller and the front cover of the centrifugal pump, the upper surface and the lower surface which are in contact with each other are not fixed, the impeller vibrates when the impeller continuously moves at high speed, the upper surface and the lower surface which are in contact with each other are not fixed, the impeller vibrates vertically, the impeller and the front cover of the centrifugal pump are not firmly fixed for a long time, and the service life of the centrifugal pump is influenced.
In addition, in the operation process of the centrifugal pump, air often enters the pump body, so that the flow of the centrifugal pump during working is reduced, and the normal use of the centrifugal pump is influenced.
In order to solve the technical problem, the utility model provides a prevent impeller vibration and exhaust excellent performance's centrifugal pump protecgulum is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve prior art's impeller and the fixed insecure influence centrifugal pump life of centrifugal pump protecgulum and because the air admission influences this technical problem that the centrifugal pump flow descends, provide a prevent impeller vibration and exhaust excellent performance's centrifugal pump protecgulum.
For realizing the purpose of the utility model, the utility model adopts the technical scheme that: including protecgulum body 1, entry 2, export 3, equipment screw hole 4, runner 5, discharge valve 6, fixed screw hole 9 on fixed screw hole 8 and the impeller under the impeller, fixed screw hole 8 sets up on protecgulum body 1 under the impeller, be located export 3, fixed screw hole 9 sets up on protecgulum body 1 on the impeller, and is adjacent with export 3, discharge valve 6 sets up on protecgulum body 1 to communicate with each other with runner 5, discharge valve 6 sets up in the one side of exporting 3, and fixed screw hole 9 is located the both sides of exporting 3 respectively on the impeller, discharge valve 6 is equipped with backward flow mouth 7.
Further, there is one impeller lower fixing threaded hole 8.
Furthermore, the impeller is provided with two fixing threaded holes 9.
Compared with the prior art, the utility model has the advantages that: the exhaust valve is specially arranged on the front cover body, gas generated in the operation process of the centrifugal pump can be discharged, normal flow of the centrifugal pump is maintained, the impeller upper fixing threaded hole and the impeller lower fixing threaded hole are formed in the front cover body, connection between the impeller and the centrifugal pump front cover can be reinforced, and the phenomenon that the impeller and the centrifugal pump front cover are connected loosely due to vibration in the long-time high-speed operation process to affect normal use of the centrifugal pump is avoided.
Drawings
FIG. 1 is a schematic structural view of a front cover of a centrifugal pump with excellent impeller vibration prevention and exhaust performance;
FIG. 2 is a front view of a front cover of a centrifugal pump with excellent impeller vibration prevention and exhaust performance;
in the figure: 1. a front cover body; 2. an inlet; 3. an outlet; 4. assembling the threaded hole; 5. a flow channel; 6. an exhaust valve; 7. a return port; 8. a threaded hole is fixed below the impeller; 9. the impeller is fixed with a threaded hole.
Detailed Description
In view of the deficiencies in the prior art, the technical solution of the present invention can be provided through long-term research and a large amount of practice. The technical solution in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention.
Fig. 1 is a schematic structural view of a front cover of a centrifugal pump with excellent impeller vibration prevention and exhaust performance provided in an embodiment of the present invention; fig. 2 is a front view of the front cover of the centrifugal pump of the present invention, which is capable of preventing the impeller from vibrating and has excellent exhaust performance. As shown in fig. 1 and fig. 2, the embodiment of the present invention provides a centrifugal pump front cover with excellent impeller vibration prevention and exhaust performance: comprises a front cover body 1, an inlet 2, an outlet 3, an assembly threaded hole 4, a flow passage 5, an exhaust valve 6, an impeller lower fixing threaded hole 8 and an impeller upper fixing threaded hole 9, the impeller lower fixing threaded hole 8 is arranged on the front cover body 1 and is positioned right below the outlet 3, the impeller upper fixing threaded hole 9 is arranged on the front cover body 1, adjacent to the outlet 3, the exhaust valve 6 is arranged on the front cover body 1 and communicated with the flow passage 5, the exhaust valve 6 is arranged at one side of the outlet 3 and is respectively positioned at two sides of the outlet 3 together with the fixed threaded hole 9 on the impeller, in the operation process of the centrifugal pump, gas generated in the pump body can be discharged to ensure the normal operation of the centrifugal pump, the exhaust valve 6 is provided with a return port 7, liquid discharged from the exhaust valve in the operation process can flow through the return port again, so that loss of the liquid is avoided.
Preferably, there is one lower fixing screw hole 8 of the impeller.
Preferably, there are two fixing threaded holes 9 on the impeller.
The beneficial effects of the utility model include: the exhaust valve is specially arranged on the front cover body, gas generated in the operation process of the centrifugal pump can be discharged, normal flow of the centrifugal pump is maintained, the impeller upper fixing threaded hole and the impeller lower fixing threaded hole are formed in the front cover body, connection between the impeller and the centrifugal pump front cover can be reinforced, and the phenomenon that the impeller and the centrifugal pump front cover are connected loosely due to vibration in the long-time high-speed operation process to affect normal use of the centrifugal pump is avoided.
The utility model provides a pair of prevent impeller vibration and exhaust excellent performance's centrifugal pump protecgulum, it should be understood, above-mentioned embodiment is only for the explanation the utility model discloses a technical conception and characteristics, its aim at let the personage of familiar with this technique can understand the utility model discloses a content and according to in order to implement, can not restrict with this the utility model discloses a protection scope. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (3)
1. The utility model provides a prevent impeller vibration and exhaust excellent performance's centrifugal pump protecgulum which characterized in that: including protecgulum body (1), entry (2), export (3), equipment screw hole (4), runner (5), discharge valve (6), fixed screw hole (8) under the impeller and fixed screw hole (9) on the impeller, fixed screw hole (8) set up on protecgulum body (1) under being located export (3), fixed screw hole (9) set up on protecgulum body (1) on the impeller, and are adjacent with export (3), discharge valve (6) set up on protecgulum body (1) to communicate with each other with runner (5), discharge valve (6) set up in the one side of export (3), and fixed screw hole (9) are located the both sides of export (3) respectively on the impeller, discharge valve (6) are equipped with backward flow mouth (7).
2. The centrifugal pump front cover with excellent impeller vibration prevention and exhaust performance according to claim 1, characterized in that: one lower fixing threaded hole (8) of the impeller is arranged.
3. The centrifugal pump front cover with excellent impeller vibration prevention and exhaust performance according to claim 1, characterized in that: the impeller is provided with two fixing threaded holes (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021201562.XU CN213331684U (en) | 2020-06-27 | 2020-06-27 | Centrifugal pump front cover with excellent impeller vibration prevention and exhaust performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021201562.XU CN213331684U (en) | 2020-06-27 | 2020-06-27 | Centrifugal pump front cover with excellent impeller vibration prevention and exhaust performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213331684U true CN213331684U (en) | 2021-06-01 |
Family
ID=76081581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021201562.XU Active CN213331684U (en) | 2020-06-27 | 2020-06-27 | Centrifugal pump front cover with excellent impeller vibration prevention and exhaust performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213331684U (en) |
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2020
- 2020-06-27 CN CN202021201562.XU patent/CN213331684U/en active Active
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