CN209925222U - High-pressure axial-flow pump - Google Patents
High-pressure axial-flow pump Download PDFInfo
- Publication number
- CN209925222U CN209925222U CN201920335842.0U CN201920335842U CN209925222U CN 209925222 U CN209925222 U CN 209925222U CN 201920335842 U CN201920335842 U CN 201920335842U CN 209925222 U CN209925222 U CN 209925222U
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- China
- Prior art keywords
- pump
- end cover
- inner end
- pump shaft
- shaft
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- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 claims abstract description 37
- 238000007599 discharging Methods 0.000 claims description 8
- 239000007787 solid Substances 0.000 abstract description 9
- 239000010419 fine particle Substances 0.000 abstract description 6
- 239000012530 fluid Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 239000004570 mortar (masonry) Substances 0.000 abstract description 3
- 239000000843 powder Substances 0.000 abstract description 3
- 239000004576 sand Substances 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a high-pressure axial-flow pump, which comprises a pump shaft, wherein a motor rotating part is arranged outside the pump shaft, the rotating part is fixedly connected with the pump shaft, and a fixed coil is arranged inside the pump body; the fixed coil pump body is fixedly connected, and a gap is formed between the fixed coil and the rotating part; the left side and the right side of the pump body are respectively provided with a first inner end cover and a second inner end cover; thrust bearings are arranged on the inner sides of the first inner end cover and the second inner end cover; the pump shaft is a hollow shaft, and a plurality of blades are arranged inside the pump shaft; two mechanical sealing units are arranged on the pump shaft. The utility model solves the problem that the pump shaft is easy to be blocked by hard fine sand grains when fluid carrying a large amount of solid fine particles is conveyed; and simultaneously, the pump lift is greatly improved. The utility model is particularly suitable for conveying fluid with a large amount of solid fine particles; can also be used for feeding mortar with different water content; can also be used as a high-lift pipeline pump and other purposes; it can also be used for conveying solid powder.
Description
Technical Field
The utility model belongs to the technical field of the axial-flow pump, concretely relates to high-pressure axial-flow pump.
Background
At present, a screw pump can be used when fluid carrying a large amount of solid fine particles is conveyed, the screw pump is easy to be stuck by hard fine sand particles, and the application range is narrow; and an impeller pump is also used for conveying sewage, and although the flow is large, the lift is not high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high pressure axial-flow pump, the during operation is suitable for the fluid or the powdery body that carry a large amount of solid-state fine particles, and the lift is higher.
In order to achieve the above object, the technical solution of the present invention is as follows.
A high-pressure axial-flow pump comprises a pump shaft, wherein a motor rotating part is arranged outside the pump shaft, the rotating part is fixedly connected with the pump shaft, and a fixed coil is arranged inside a pump body; a gap is arranged between the fixed coil and the rotating part; the left side and the right side of the pump body are respectively provided with a first inner end cover and a second inner end cover; thrust bearings are arranged on the inner sides of the first inner end cover and the second inner end cover; the pump shaft is a hollow shaft, and a plurality of blades are arranged inside the pump shaft; two mechanical sealing units are arranged on the pump shaft.
Furthermore, the blades are discontinuous blades or continuous spiral blades or continuous unequal-pitch blades, and the blades are fixedly connected to the inner surface of the pump shaft.
Furthermore, a first gasket and a second gasket are respectively arranged on the first inner end cover and the second inner end cover; and a first mechanical sealing unit and a second mechanical sealing unit are respectively arranged on the outer sides of the first inner end cover and the second inner end cover.
Further, a discharging outer end cover and a feeding outer end cover are fixedly mounted outside the first inner end cover and the second inner end cover respectively by using connecting screws; and a filter screen is arranged on the feeding outer end cover.
Further, a first sealing piece is arranged at the mounting connection position of the pump body and the first inner end cover; a second sealing piece is arranged at the mounting connection position of the pump body and the second inner end cover; the first sealing element and the second sealing element are both O-shaped rings.
Furthermore, the pump shaft is both a power transmission element of the pump and a conveying element of the medium.
When the utility model works, the vertical or horizontal placement is adopted, the vertical placement medium is to be soaked into the blade section in the pump shaft, when the pump shaft rotates at high speed, the medium is pushed by the blade in the pump shaft to generate a lift, and the pump shaft is not only a power transmission part of the pump, but also a conveying part of the medium; different filter screens are arranged for different purposes, and media passing through the filter screens can be conveyed by the axial flow pump; because the blade and the pump shaft rotate synchronously, the blade and the pump shaft do not move relatively, and the problem of blocking of the pump shaft is solved.
The fixed coil is arranged in the pump body, and the motor rotating part is arranged in the structure of the outer surface of the pump shaft.
In the utility model, the feeding outer end cover is the feeding port of the pump and is the supporting body of the filter screen; the first mechanical sealing unit and the second mechanical sealing unit are mechanical sealing units and are used for sealing the bearing so as to prevent the bearing from being immersed by a medium; the first inner end cover and the second inner end cover are support bodies of bearings, and bear the bearings and the pump shaft; the first gasket and the second gasket mainly play a role in sealing; the connecting screw is used for connecting the pump body and the end cover; the thrust bearing supports the pump shaft and transmits the axial force of the pump shaft; the pump body is provided with a motor stator which is connected with the left end cover and the right end cover; the fixed coil is arranged in the pump body; the rotating part is a power source of the whole equipment; the discharging outer end cover is a discharging port of the pump and is also a protective body of mechanical seal; the blade can be made into a discontinuous blade or a continuous spiral blade. The pump shaft pushes the material out through rotation.
The utility model discloses a beneficial effect lie in: the utility model solves the problem that the pump shaft is easy to be blocked by hard fine sand grains when fluid carrying a large amount of solid fine particles is conveyed; simultaneously also improved the lift of pump widely, the utility model discloses can be used for high-lift tubing pump. The efficiency and service life of the pump is not comparable to that of any previous pump for this purpose. The pump can also be used for conveying solid powder, such as injection molding in powder metallurgy and other fields.
Drawings
Fig. 1 is a schematic structural diagram of a device used in the embodiment of the present invention.
The notation in the figure is: 1. feeding outer end covers; 2. a second mechanical seal unit; 3. a second inner end cap; 4. a second gasket; 5. a coupling screw; 6. a thrust bearing; 7. a pump body; 8. fixing the coil; 9. a rotating member; 10. a first inner end cap; 11. a first gasket; 12. a first mechanical seal unit; 13. a discharging outer end cover; 14. a first seal member; 15. a pump shaft; 16. a second seal member; 17. a blade; 18. and (5) filtering by using a filter screen.
Detailed Description
The following description of the embodiments of the present invention will be provided in conjunction with the accompanying drawings for better understanding of the invention.
The high-pressure axial-flow pump shown in fig. 1 comprises a pump shaft 15, wherein a motor rotating part 9 is arranged outside the pump shaft 15, the rotating part 9 is fixedly connected with the pump shaft 15, and a fixed coil 8 is arranged inside a pump body 7; the fixed coil 8 and the pump body 7 are fixedly connected, and a gap is formed between the fixed coil 8 and the rotating part 9; a first inner end cover 10 and a second inner end cover 3 are respectively arranged on the left side and the right side of the pump body 7; the inner sides of the first inner end cover 10 and the second inner end cover 3 are both provided with a thrust bearing 6; a plurality of vanes 17 are provided inside the pump shaft 15. The blades 17 are discontinuous blades or continuous spiral blades or continuous unequal-pitch blades, and are fixedly connected to the inner surface of the pump shaft. The first inner end cover 10 and the second inner end cover 3 are respectively provided with a first gasket 11 and a second gasket 4; and a first mechanical sealing unit 12 and a second mechanical sealing unit 2 are respectively arranged outside the first inner end cap 10 and the second inner end cap 3. The outer parts of the first inner end cover 10 and the second inner end cover 3 are fixedly provided with a discharging outer end cover 13 and a feeding outer end cover 1 by utilizing a connecting screw 5 respectively; and a filter screen 18 is arranged on the feeding outer end cover 1. A first sealing piece 14 is arranged at the mounting connection position of the pump body 7 and the first inner end cover 10; a second sealing piece 16 is arranged at the mounting connection position of the pump body 7 and the second inner end cover 3; the first seal 14 and the second seal 16 are both O-rings.
The utility model discloses an in, it can rotate to pass through magnetic field rotating part for the stationary coil circular telegram produces the magnetic field, and rotating part so rotating part and pump shaft synchronization with the pump shaft rigid coupling. The pump body 7, the pump shaft 15, the fixed coil 8, the rotating component 9, the first inner end cover 10, the second inner end cover 3 and the thrust bearing 6 can be regarded as a designed motor; the first inner end cover and the second inner end cover are respectively provided with a first gasket 11 and a second gasket 4, and the gaskets prevent water from entering the pump body and adopt static seal. The outer sides of the first inner end cover and the second inner end cover are respectively provided with a first mechanical sealing unit 12 and a second mechanical sealing unit 2; the mechanical sealing unit is also a labyrinth dynamic seal for preventing water, solid impurities and the like from entering the pump body when the pump shaft rotates at a high speed. A first sealing element 14 is arranged at the mounting connection position of the pump body and the first inner end cover; and a second sealing piece 16 is arranged at the mounting connection part of the pump body and the second inner end cover. The sealing element is an O-shaped ring and also is a static seal, and the function of the sealing element is to prevent water from entering the pump body.
In the utility model, the feeding outer end cover 1 is the feeding port of the pump and is the bearing body of the filter screen 18; the first mechanical sealing unit 12 and the second mechanical sealing unit 2 are mechanical sealing units and are used for sealing the bearing so as to prevent the bearing from being immersed by a medium; the first inner end cover 10 and the second inner end cover 3 are support bodies of bearings, and bear the bearings and the pump shafts; the first gasket 11 and the second gasket 4 mainly perform a sealing function; the connecting screw 5 is used for connecting the pump body and the end cover; the thrust bearing 6 is used for supporting the pump shaft and transmitting the axial force of the pump shaft; the pump body 7 is provided with a motor stator which is connected with the left end cover and the right end cover; the fixed coil 8 is arranged in the pump body; the rotating part 9 is a power source of the whole equipment; the discharging outer end cover 13 is a discharging port of the pump and is also a protective body for mechanical sealing; the blade 17 may be made into a discontinuous blade or a continuous helical blade. The pump shaft 15 pushes the material out by rotation. The axial flow pump must be fully or partially immersed in the medium before operation, or a proper amount of medium is added at the inlet end before starting, so that part or all of the blades are immersed. The medium can be clear water, sewage, fluid with a large amount of solid fine particles (such as coal mortar, slurry, fine mortar and the like) or solid powder. The axial pump can be used for conveying a medium and also for pressurizing the medium (as a pipeline pump).
The utility model discloses a during operation adopts vertical or horizontal putting, and vertical putting medium will soak the blade section in the pump shaft, and medium and rigid coupling rotate together at the interior helical blade or the blade of pump shaft when the high-speed rotation of pump shaft to produce the lift under the blade thrust effect, different usage sets up different filter screens, and the medium through the filter screen can both be carried by the axial-flow pump. Because the blade and the pump shaft rotate synchronously, the blade and the pump shaft do not move relatively, and the problem of blocking of the pump shaft is solved. The friction between the medium and the pump shaft is quite small. The pump is different from the existing pump, the impeller and the impeller shell move relatively, when a large amount of medium enters the impeller, the medium and the impeller shell collide, rub and even block the motor.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.
Claims (6)
1. A high pressure axial flow pump characterized by: the pump comprises a pump shaft, wherein a motor rotating part is arranged outside the pump shaft, the rotating part is fixedly connected with the pump shaft, and a fixed coil is arranged inside the pump body; the fixed coil pump body is fixedly connected, the rotating part is fixedly connected with the pump shaft, and a gap is formed between the fixed coil and the rotating part; the left side and the right side of the pump body are respectively provided with a first inner end cover and a second inner end cover; thrust bearings are arranged on the inner sides of the first inner end cover and the second inner end cover; the pump shaft is a hollow shaft, and a plurality of blades are arranged inside the pump shaft; two mechanical sealing units are arranged on the pump shaft.
2. The high pressure axial flow pump of claim 1, wherein: the blades are discontinuous blades or continuous spiral blades or continuous unequal-pitch blades, and the blades are fixedly connected to the inner surface of the pump shaft.
3. The high pressure axial flow pump of claim 1, wherein: the first inner end cover and the second inner end cover are respectively provided with a first gasket and a second gasket; and a first mechanical sealing unit and a second mechanical sealing unit are respectively arranged on the outer sides of the first inner end cover and the second inner end cover.
4. The high pressure axial flow pump of claim 1, wherein: the outer parts of the first inner end cover and the second inner end cover are fixedly provided with a discharging outer end cover and a feeding outer end cover by utilizing connecting screws respectively; and a filter screen is arranged on the feeding outer end cover.
5. The high pressure axial flow pump of claim 1, wherein: a first sealing element is arranged at the mounting connection position of the pump body and the first inner end cover; a second sealing piece is arranged at the mounting connection position of the pump body and the second inner end cover; the first sealing element and the second sealing element are both O-shaped rings.
6. The high pressure axial flow pump of claim 1, wherein: the fixed coil is arranged in the pump body, and the motor rotating part is arranged in a structure on the outer surface of the pump shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920335842.0U CN209925222U (en) | 2019-03-18 | 2019-03-18 | High-pressure axial-flow pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920335842.0U CN209925222U (en) | 2019-03-18 | 2019-03-18 | High-pressure axial-flow pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209925222U true CN209925222U (en) | 2020-01-10 |
Family
ID=69070616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920335842.0U Expired - Fee Related CN209925222U (en) | 2019-03-18 | 2019-03-18 | High-pressure axial-flow pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209925222U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779921A (en) * | 2019-03-18 | 2019-05-21 | 李卿 | A kind of high pressure axial-flow pump |
-
2019
- 2019-03-18 CN CN201920335842.0U patent/CN209925222U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109779921A (en) * | 2019-03-18 | 2019-05-21 | 李卿 | A kind of high pressure axial-flow pump |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |