CN214698349U - Multiple sealed type fluorine lining centrifugal pump - Google Patents
Multiple sealed type fluorine lining centrifugal pump Download PDFInfo
- Publication number
- CN214698349U CN214698349U CN202121164245.XU CN202121164245U CN214698349U CN 214698349 U CN214698349 U CN 214698349U CN 202121164245 U CN202121164245 U CN 202121164245U CN 214698349 U CN214698349 U CN 214698349U
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- pump
- impeller
- pump cover
- shaft
- cover
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Abstract
The utility model relates to a centrifugal pump especially relates to a multiple canned type lining fluorine centrifugal pump. The utility model discloses can effectively block the granule in the medium and get into slide bearing, improve pump body life, reduce wearing and tearing. The utility model comprises a pump shell, a pump cover fixed on one side of the pump shell, an impeller arranged in the pump shell, and a pump shaft penetrating through the pump cover, wherein one end of the impeller is fixedly connected with the pump shaft, a sliding bearing and a mechanical seal are arranged between the pump shaft and the pump cover, and the pump also comprises an accommodating cavity formed by the surrounding of the sliding bearing, the pump cover, the pump shaft and the impeller; the flushing bin is formed by encircling the sliding bearing, the pump cover, the pump shaft and the mechanical seal; the pump cover is provided with a flushing channel communicated with the flushing bin.
Description
Technical Field
The utility model relates to a centrifugal pump especially relates to a multiple canned type lining fluorine centrifugal pump.
Background
The centrifugal pump is a pump for conveying a liquid by centrifugal force generated when an impeller rotates.
The existing centrifugal pump is single in sealing arrangement, and is generally matched with mechanical sealing through a sliding bearing, and because the medium contains partial solid particles, the structure has the problem of bearing abrasion, so that the medium (water) is easy to enter the bearing body along the shaft, the reliability of the bearing body is poor, and the service life of the pump body is shortened.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a multiple canned type lining fluorine centrifugal pump, can effectively block the granule in the medium and get into slide bearing, improve pump body life, reduce wearing and tearing.
The multiple sealing type fluorine lining centrifugal pump comprises a pump shell, a pump cover fixed on one side of the pump shell, an impeller arranged in the pump shell, and a pump shaft penetrating through the pump cover, wherein one end of the impeller is fixedly connected with the pump shaft, a sliding bearing and a mechanical seal are arranged between the pump shaft and the pump cover, and the multiple sealing type fluorine lining centrifugal pump also comprises an accommodating cavity formed by encircling the sliding bearing, the pump cover, the pump shaft and the impeller; the flushing bin is formed by encircling the sliding bearing, the pump cover, the pump shaft and the mechanical seal; the pump cover is provided with a flushing channel communicated with the flushing bin.
Preferably, the impeller further comprises an impeller rear mouth ring sleeved with a shaft disc of the impeller; the pump cover opening ring is fixed on the inner wall of the pump cover; the impeller back opening ring is in clearance fit with the pump cover opening ring.
Preferably, the back of the blade of the impeller is fixed with a fin.
The fins on the back of the impeller stir particles at the rear opening ring of the impeller and the pump cover opening ring, so that the gap between the rear opening ring of the impeller and the pump cover opening ring is prevented from being blocked.
The use principle and the process are as follows: along with the high-speed rotation of the impeller, under the blocking action of the impeller rear opening ring and the pump cover opening ring, a medium blocks most particles and then enters the accommodating cavity, the medium enters the accommodating cavity, particles in the medium flow back to the impeller inlet through the impeller balance hole due to the fact that the inlet side of the impeller is a low-pressure area, positive pressure is generated on one side of the impeller by the aid of rotation of the auxiliary impeller, the circulation process can be accelerated, in addition, negative pressure is generated on the other side due to the fact that the auxiliary impeller rotates, cleaning medium in the flushing bin enters through the flushing channel, meanwhile, the particles are further blocked and enter the sliding bearing and the mechanical seal, and the service life of the cleaning medium is effectively prolonged.
The utility model has the advantages that: the fins are arranged to stir particles at the positions of the impeller rear opening ring and the pump cover opening ring, so that the gap between the impeller rear opening ring and the pump cover opening ring is prevented from being blocked; the auxiliary impeller is arranged to further prevent particles from entering the sliding bearing and the mechanical seal, so that the service life of the sliding bearing is effectively prolonged.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
in the figure: 1. a pump housing; 2. a pump cover; 3. an impeller; 4. a pump shaft; 5. a sliding bearing; 6. mechanical sealing; 7. an accommodating chamber; 8. washing the bin; 9. an auxiliary impeller; 10. an impeller balance hole; 11. flushing the channel; 12. an impeller rear mouth ring; 13. a pump cover opening ring; 14. and a fin.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
As shown in fig. 1, the multiple-sealing type fluorine-lined centrifugal pump of the present invention includes a pump casing 1, a pump cover 2 fixed on one side of the pump casing 1, an impeller 3 disposed in the pump casing 1, and a pump shaft 4 penetrating the pump cover 2, wherein one end of the impeller 3 is fixedly connected to the pump shaft 4, a sliding bearing 5 and a mechanical seal 6 are disposed between the pump shaft 4 and the pump cover 2, and the multiple-sealing type fluorine-lined centrifugal pump further includes a receiving chamber 7 surrounded by the sliding bearing 5, the pump cover 2, the pump shaft 4, and the impeller 3; the flushing bin 8 is formed by encircling the sliding bearing 5, the pump cover 2, the pump shaft 4 and the mechanical seal 6; an auxiliary impeller 9 sleeved with the pump shaft 4 is fixed in the accommodating cavity 7, an impeller balance hole 10 communicated with the accommodating cavity 7 is formed in the impeller 3, a flushing channel 11 communicated with the flushing bin 8 is formed in the pump cover 2, and an impeller rear mouth ring 12 sleeved with a shaft disc of the impeller 3 is further included; and a pump cover ring 13 fixed on the inner wall of the pump cover 2; the impeller back opening ring 12 is in clearance fit with the pump cover opening ring 13. The blade back of the impeller 3 fixes the fins 14.
In this embodiment, the inner walls of the pump case 1 and the pump cover 2 are both lined with non-metallic material protective layers such as fluoroplastics, which can improve the corrosion resistance of the pump body, and the fins 14 on the back of the impeller 3 stir particles at the impeller back mouth ring 12 and the pump cover mouth ring 13, thereby preventing the gap between the impeller back mouth ring 12 and the pump cover mouth ring 13 from being blocked. When the device works, along with the high-speed rotation of the impeller 3, a medium blocks most particles and then enters the accommodating cavity 7 under the blocking action of the impeller rear opening ring 12 and the pump cover opening ring 13, the medium entering the accommodating cavity 7 is in a low-pressure area due to the fact that the inlet side of the impeller 3 is the low-pressure area, the particles in the medium flow back to the inlet of the impeller 3 through the impeller balance hole 10, meanwhile, the rotation of the auxiliary impeller 9 generates positive pressure on one side of the auxiliary impeller, the circulation process can be accelerated, in addition, negative pressure is generated on the other side due to the rotation of the auxiliary impeller 9, the cleaning medium in the flushing bin 8 enters through the flushing channel 11, meanwhile, the particles are further blocked and enter the sliding bearing and the mechanical seal, and the service life of the cleaning device is effectively prolonged.
Of course, the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the scope of the embodiments of the present invention. The present invention is not limited to the above examples, and the technical field of the present invention is equivalent to the changes and improvements made in the actual range of the present invention, which should be attributed to the patent coverage of the present invention.
Claims (3)
1. The utility model provides a multiple canned type lining fluorine centrifugal pump, includes pump case (1), is fixed in pump cover (2) of pump case (1) one side, arranges impeller (3) in pump case (1) in, and runs through pump shaft (4) of pump cover (2), impeller (3) one end and pump shaft (4) fixed connection, be equipped with slide bearing (5) and mechanical seal (6) between pump shaft (4) and pump cover (2), its characterized in that still includes:
the containing cavity (7) is formed by encircling the sliding bearing (5), the pump cover (2), the pump shaft (4) and the impeller (3);
the flushing bin (8) is formed by encircling the sliding bearing (5), the pump cover (2), the pump shaft (4) and the mechanical seal (6);
hold chamber (7) internal fixation have with pump shaft (4) suit's supplementary impeller (9), be equipped with on impeller (3) with hold chamber (7) intercommunication impeller balance hole (10), be equipped with on pump cover (2) with wash passageway (11) of washing storehouse (8) intercommunication.
2. The multiple-seal type fluorine-lined centrifugal pump as set forth in claim 1, further comprising:
the impeller rear mouth ring (12) is sleeved with the shaft disc of the impeller (3);
and a pump cover opening ring (13) fixed on the inner wall of the pump cover (2);
the impeller rear opening ring (12) is in clearance fit with the pump cover opening ring (13).
3. The multiple-seal type fluorine-lined centrifugal pump according to claim 1 or 2, wherein: fins (14) are fixed on the back of the blades of the impeller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164245.XU CN214698349U (en) | 2021-05-27 | 2021-05-27 | Multiple sealed type fluorine lining centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164245.XU CN214698349U (en) | 2021-05-27 | 2021-05-27 | Multiple sealed type fluorine lining centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214698349U true CN214698349U (en) | 2021-11-12 |
Family
ID=78554270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121164245.XU Active CN214698349U (en) | 2021-05-27 | 2021-05-27 | Multiple sealed type fluorine lining centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214698349U (en) |
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2021
- 2021-05-27 CN CN202121164245.XU patent/CN214698349U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder |
Address after: 255200 village, Baita Town, Boshan District, Shandong, Zibo Patentee after: ZIBO LUMING PUMP INDUSTRY Co.,Ltd. Address before: 255200 Wudi village, Baita Town, Zichuan District, Zibo City, Shandong Province Patentee before: ZIBO LUMING PUMP INDUSTRY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |