CN216691574U - Balance structure of multistage split pump - Google Patents
Balance structure of multistage split pump Download PDFInfo
- Publication number
- CN216691574U CN216691574U CN202122299151.XU CN202122299151U CN216691574U CN 216691574 U CN216691574 U CN 216691574U CN 202122299151 U CN202122299151 U CN 202122299151U CN 216691574 U CN216691574 U CN 216691574U
- Authority
- CN
- China
- Prior art keywords
- balance
- balance drum
- pump
- drum sleeve
- sleeve
- 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.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a balance structure of a multistage split pump, which comprises a balance drum sleeve, a balance drum, a pump shaft and a pump body, wherein the balance drum is fixed on the pump shaft and rotates along with the pump shaft; the balance drum sleeve is fixedly connected with the pump body; the surface of the balance drum is provided with a spiral labyrinth groove; and a space capable of properly balancing the axial force exists between the balance drum and the balance drum sleeve. A proper distance exists between the balance drum and the balance drum sleeve, so that the axial force can be properly balanced; the spiral labyrinth groove design on the surface of the balance drum can effectively reduce the leakage of liquid between stages, thereby reducing loss and improving efficiency. The axial planing design of the balance drum sleeve enables the rotor to be directly assembled without secondary disassembly after an actuation balance experiment, improves the assembly precision of the rotor, and ensures the operation reliability of the pump. The structure can improve the assembly precision of the pump, balance the axial force, increase the pump efficiency, ensure the safe and reliable operation and prolong the service life of the pump.
Description
Technical Field
The utility model relates to a balance structure, in particular to a balance structure of a multistage split pump, which can improve the assembly precision of the pump, balance axial force, increase the pump efficiency, ensure the safe and reliable operation and prolong the service life of the pump.
Background
In the operation process of the split pump, a rotor component can be subjected to large axial force, the axial force can be balanced through a bearing and the like in a conventional method, generally speaking, the bearing is selected and obtained through calculation, but the axial force cannot be accurately calculated only through calculation, in actual engineering, the deformation of a locking nut, the heating abnormality of the bearing and even the shaft breakage can occur due to the miscalculation of the axial force, the service life of the multi-stage split pump is shortened, the maintenance cost is increased, and meanwhile the bearing and the shaft are subjected to huge challenges.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention provides a balance structure of a multi-stage split pump, which can improve the assembly precision of the pump, balance the axial force, increase the pump efficiency, ensure the safe and reliable operation, and prolong the service life of the pump.
The utility model solves the technical problems through the following technical scheme: a balance structure for a multi-stage split pump, the balance structure comprising: the balance pump comprises a balance drum sleeve, a balance drum, a pump shaft and a pump body, wherein the balance drum is fixed on the pump shaft and rotates along with the pump shaft; the balance drum sleeve is fixedly connected with the pump body; the surface of the balance drum is provided with a spiral labyrinth groove; and a space capable of properly balancing the axial force exists between the balance drum and the balance drum sleeve.
In the concrete implementation example of the utility model, the balance drum is fixed on the pump shaft through a key and rotates along with the pump shaft; the balance drum sleeve is connected with the pump body through a positioning pin; an O-shaped ring for sealing is arranged between the balance drum sleeve and the pump body.
In an embodiment of the present invention, the range of the distance between the balance drum and the balance drum sleeve is: 2.0-3.0 mm.
In an embodiment of the present invention, the balance drum sleeve is designed with an axial planing design.
In the specific implementation example of the utility model, the balance drum sleeve is divided into an upper part and a lower part which are respectively an upper balance drum sleeve and a lower balance drum sleeve, the upper balance drum sleeve or the lower balance drum sleeve is of a partially-flattened structure, and the upper balance drum sleeve and the lower balance drum sleeve are fixed together by adopting symmetrically-distributed screws and pins on the partially-flattened structure.
In a specific implementation example of the utility model, a protrusion is arranged on the balance drum sleeve at the joint of the balance drum sleeve and the pump body, a groove corresponding to the protrusion is arranged on the pump body, and the positioning pin is positioned in the protrusion and the groove.
In a specific embodiment of the utility model, the spiral labyrinth grooves are distributed over the entire balancing drum.
The positive progress effects of the utility model are as follows: the balance structure of the multistage split pump provided by the utility model has the following advantages: the balance structure of the multistage split pump provided by the utility model has the advantages of cost saving, safety, reliability, convenience in disassembly and assembly and good stability, and can improve the assembly precision of the pump, balance axial force, increase the pump efficiency, ensure the safe and reliable operation and prolong the service life of the pump.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged view (at B) of fig. 1.
Fig. 3 is a schematic structural view of the balance drum sleeve of the present invention.
Fig. 4 is a schematic view of the direction a-a of fig. 3.
The following are the names corresponding to the reference numbers in the utility model:
the pump comprises a pump body 1, a positioning pin 2, a 0-shaped ring 3, a balance drum sleeve 4, an impeller 5, a balance drum 6, a key 7, a pump shaft 8, a screw 9, a pin 10, a space 11 and a spiral labyrinth groove 12; an upper balancing drum sleeve 401 and a lower balancing drum sleeve 402.
Detailed Description
The following provides a detailed description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a schematic view of the overall structure of the present invention, and fig. 2 is a partial enlarged view (B) of fig. 1, as shown in the above figure: the utility model provides a balance structure of a multistage split pump, which comprises a balance drum sleeve 4, a balance drum 6, a pump shaft 8 and a pump body 1, wherein the balance drum 6 is fixed on the pump shaft 8 and rotates along with the pump shaft 8; the balance drum sleeve 4 is fixedly connected with the pump body 1; the surface of the balance drum 6 is provided with a spiral labyrinth groove 12; a space 11 exists between the balancing drum 6 and the balancing drum sleeve 4, which enables proper balancing of axial forces.
The balance drum 6 is fixed on the pump shaft 8 through a key 7 and rotates along with the pump shaft 8; the balance drum sleeve 4 is connected with the pump body 1 through a positioning pin 2; an O-shaped ring 3 for sealing is arranged between the balance drum sleeve 4 and the pump body 1.
In a specific implementation of the utility model, the range of the distance set between the balancing drum 6 and the balancing drum sleeve 4 is: 2.0-3.0mm, and the above parameters can be changed into other data according to specific field conditions and requirements.
Fig. 3 is a schematic structural view of a balance drum sleeve of the present invention, and fig. 4 is a schematic view along a-a of fig. 3, as shown in fig. 3-4: the balance drum sleeve 4 adopts an axial planing design, so that the rotor can be directly assembled without secondary disassembly after an actuation balance experiment, the assembly precision of the rotor is improved, the operation reliability of the pump is ensured, and the service life of the pump is prolonged. In a specific implementation process, the balance drum sleeve 4 is divided into an upper balance drum sleeve 401 and a lower balance drum sleeve 402, the upper balance drum sleeve 401 or the lower balance drum sleeve 402 is of a partially-flattened structure, and the upper balance drum sleeve 401 and the lower balance drum sleeve 402 are fixed together by symmetrically distributed screws 9 and pins 10 on the partially-flattened structure.
The balance drum sleeve 4 at the joint of the balance drum sleeve 4 and the pump body 1 is provided with a bulge, the pump body 1 is provided with a groove corresponding to the bulge, and the positioning pin 2 is positioned in the bulge and the groove.
According to the utility model, the balance drum 6 can rotate along with the pump shaft 8 through the key 7; the balance drum sleeve 4 is connected with the pump body 1 through the positioning pin 2 and is fixed with the pump body 1, so that relative sliding is avoided; the balance drum sleeve 4 and the pump body 1 are sealed by an O-shaped ring 3, so that leakage between the balance drum sleeve 6 and the pump body 1 is avoided; the diameter of the balance drum 6 is obtained through accurate calculation, and the axial force generated by the rotor can be balanced by utilizing the pressure difference between the runner stages; a proper distance exists between the balance drum 6 and the balance drum sleeve 4, so that the axial force can be properly balanced; the spiral labyrinth grooves on the surface of the balance drum are designed, so that the leakage of liquid between stages can be effectively reduced, the loss is reduced, the efficiency is improved, and in the specific implementation process, the spiral labyrinth grooves 12 are fully distributed on the whole balance drum 6.
In the specific embodiment, the screw 9 and the pin 10 are arranged according to the schematic illustration of fig. 4, but may be arranged in other ways during the specific implementation.
The axial planing design of the balance drum sleeve enables the rotor to be directly assembled without secondary disassembly after an actuation balance experiment, improves the assembly precision of the rotor, and ensures the operation reliability of the pump. The structure can improve the assembly precision of the pump, balance the axial force, increase the pump efficiency, ensure the safe and reliable operation and prolong the service life of the pump.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined by the appended claims and their equivalents.
Claims (7)
1. The utility model provides a balanced structure of multistage well turn on pump which characterized in that: the balance structure of the multi-stage split pump comprises: the balance pump comprises a balance drum sleeve, a balance drum, a pump shaft and a pump body, wherein the balance drum is fixed on the pump shaft and rotates along with the pump shaft; the balance drum sleeve is fixedly connected with the pump body; the surface of the balance drum is provided with a spiral labyrinth groove; and a space capable of balancing the axial force exists between the balance drum and the balance drum sleeve.
2. The balance structure of the multistage split pump according to claim 1, wherein: the balance drum is fixed on the pump shaft through a key and rotates along with the pump shaft; the balance drum sleeve is connected with the pump body through a positioning pin; an O-shaped ring for sealing is arranged between the balance drum sleeve and the pump body.
3. The balance structure of the multistage split pump according to claim 1, wherein: the range of the distance between the balance drum and the balance drum sleeve is as follows: 2.0-3.0 mm.
4. The balance structure of the multistage split pump according to claim 1, wherein: the balance drum sleeve adopts an axial planing design.
5. The balance structure of the multistage split pump according to claim 4, wherein: the balance drum sleeve is divided into an upper balance drum sleeve and a lower balance drum sleeve which are respectively an upper balance drum sleeve and a lower balance drum sleeve, the upper balance drum sleeve or the lower balance drum sleeve is of a partially flattened structure, and the upper balance drum sleeve and the lower balance drum sleeve are fixed together by adopting symmetrically distributed screws and pins on the partially flattened structure.
6. The balance structure of the multistage split pump according to claim 2, wherein: the balance drum sleeve at the joint of the balance drum sleeve and the pump body is provided with a bulge, the pump body is provided with a groove corresponding to the bulge, and the positioning pin is positioned in the bulge and the groove.
7. The balance structure of a multistage split pump according to claim 1 or 2, wherein: the spiral labyrinth grooves are distributed over the entire balancing drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122299151.XU CN216691574U (en) | 2021-09-22 | 2021-09-22 | Balance structure of multistage split pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122299151.XU CN216691574U (en) | 2021-09-22 | 2021-09-22 | Balance structure of multistage split pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216691574U true CN216691574U (en) | 2022-06-07 |
Family
ID=81823943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122299151.XU Active CN216691574U (en) | 2021-09-22 | 2021-09-22 | Balance structure of multistage split pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216691574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001049A (en) * | 2021-09-22 | 2022-02-01 | 上海凯泉泵业（集团）有限公司 | Balance structure of multistage split pump |
-
2021
- 2021-09-22 CN CN202122299151.XU patent/CN216691574U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114001049A (en) * | 2021-09-22 | 2022-02-01 | 上海凯泉泵业（集团）有限公司 | Balance structure of multistage split pump |
| CN114001049B (en) * | 2021-09-22 | 2024-05-14 | 上海凯泉泵业（集团）有限公司 | Balance structure of multistage split pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216691574U (en) | Balance structure of multistage split pump | |
| CN105114353A (en) | Rayleigh groove type floating ring sealing device for hydrogen oxygen engine turbopump | |
| CN109128718B (en) | Manufacturing method of mechanical type steam compressor combined diffuser | |
| CN104179632B (en) | Bidirectional geared motor | |
| CN114001049A (en) | Balance structure of multistage split pump | |
| CN210599549U (en) | Impeller anti-abrasion structure on water pump | |
| CN108869384B (en) | Radial sealing ring of centrifugal pump with cylindrical guide vanes | |
| CN105275720A (en) | Turbodrill hollow motor with axial force balance hub | |
| JP6507462B2 (en) | Rotor of centrifugal compressor, centrifugal compressor, and method of manufacturing rotor of centrifugal compressor | |
| CN104763631A (en) | Vortex refrigeration compressor with sliding and rolling friction pair bent axle supporting structure | |
| CN102449267A (en) | Rotor for a turbomachine | |
| CN201351633Y (en) | Novel mechanical seating auxiliary circulating pump | |
| CN114427546A (en) | Adjustable stator blade and casing structure | |
| RU190277U1 (en) | RADIAL ROTARY GASKET SEAL OF ROTOR WITH FLOATING RING | |
| CN218991939U (en) | Center-opening centrifugal pump | |
| CN202955235U (en) | Self-circulation corrugated pipe mechanical sealing device | |
| CN112963379A (en) | Composite structure of inducer and centrifugal impeller | |
| CN204140257U (en) | Spot projection Wedge-shaped blade activation level rotor assembly parts | |
| CN216811788U (en) | Integral rotor with blades | |
| CN204357754U (en) | Water pump equilibrirm water cavity configuration | |
| CN108825549B (en) | Radial sealing ring of centrifugal pump with wing type guide vanes | |
| CN207548657U (en) | A kind of bearing outer ring knocks in mechanism | |
| CN220869635U (en) | Gear pump integral cast iron seat ring and steel back sintered copper alloy side plate double-floating structure | |
| CN209083602U (en) | A kind of submersible pump | |
| CN215498603U (en) | Vane pump motor shaft supporting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |