CN213235459U - Self-balancing sectional type multistage centrifugal pump - Google Patents
Self-balancing sectional type multistage centrifugal pump Download PDFInfo
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- CN213235459U CN213235459U CN202021645530.9U CN202021645530U CN213235459U CN 213235459 U CN213235459 U CN 213235459U CN 202021645530 U CN202021645530 U CN 202021645530U CN 213235459 U CN213235459 U CN 213235459U
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- 230000011218 segmentation Effects 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
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Abstract
The utility model discloses a self-balancing festival segmentation multistage centrifugal pump, its characterized in that: the centrifugal pump comprises a suction section (1), a discharge section (2) and a tail end section (3), four middle section sections (4) are arranged between the suction section (1) and the discharge section (2), four middle section sections (4) are also arranged between the spitting section (2) and the tail end section (3), the suction section (1) is connected with a drive end pump cover (5), the drive end pump cover (5) is connected with a drive end bearing assembly (6), the tail end section (3) is connected with a non-driving end pump cover (7), the non-driving end pump cover (7) is connected with a non-driving end bearing assembly (8), the drive end bearing assembly (6) and the non-drive end bearing (8) jointly rotatably support a pump shaft (9), and the two ends of the pump shaft (9) are respectively provided with a container seal (10) positioned on the outer sides of the drive end pump cover (5) and the non-drive end pump cover (7).
Description
Technical Field
The utility model relates to a centrifugal pump, especially a self-balancing festival segmentation multistage centrifugal pump.
Background
The conventional MC multistage centrifugal pump has a relatively narrow application range, and a large axial force is generated in the working process of a pump shaft, so that a balance disc (or a balance drum) needs to be additionally installed on the pump shaft to balance the axial force, the manufacturing difficulty and cost are increased, the balance disc gradually wears in the use process, the worn balance disc loses the effect of balancing the axial force, and thus the balance disc needs to be regularly maintained and replaced, and extra workload is brought. There is therefore a need for a method or apparatus that addresses the above-mentioned problems.
Disclosure of Invention
The utility model relates to a solve the above-mentioned not enough that prior art exists, provide a simple structure, design benefit, rationally distributed, need not install balance disk or balanced drum, alright realize the self-balancing festival segmentation multistage centrifugal pump of balanced axial force.
The technical solution of the utility model is that: the utility model provides a self-balancing festival segmentation multistage centrifugal pump which characterized in that: the centrifugal pump comprises a suction section 1, a discharge section 2 and a tail end section 3, wherein four middle section sections 4 are arranged between the suction section 1 and the discharge section 2, four middle section sections 4 are also arranged between the discharge section 2 and the tail end section 3, a drive end pump cover 5 is connected to the suction section 1, the drive end pump cover 5 is connected with a drive end bearing assembly 6, a non-drive end pump cover 7 is connected to the tail end section 3, the non-drive end pump cover 7 is connected with a non-drive end bearing assembly 8, the drive end bearing assembly 6 and the non-drive end bearing assembly 8 jointly rotate and support a pump shaft 9, and the two ends of the pump shaft 9 are respectively provided with a container seal 10 positioned at the outer sides of the drive end pump cover 5 and the non,
the pump cavity between the suction section 1 and the discharge section 2 is a first cavity, the suction section 1 is communicated with the first cavity, the pump cavity between the discharge section 2 and the tail end section 3 is a second cavity, the discharge section 2 is communicated with the second cavity, a first connecting part 11 and a second connecting part 12 are respectively arranged on the discharge section 2 and the tail end section 3, a communicating pipeline 13 is connected between the first connecting part 11 and the second connecting part 12, the suction section 1 and the first connecting part 11 are respectively positioned at the inlet side and the outlet side of the first cavity, the discharge section 2 and the second connecting part 12 are respectively positioned at the outlet side and the inlet side of the second cavity, two groups of impellers 14 which are arranged in a back direction are in key connection on the pump shaft 9, each group comprises four impellers 14, and the impellers 14 are in one-to-one correspondence with the middle section 4.
Compared with the prior art, the utility model, have following advantage:
the self-balancing sectional type multistage centrifugal pump has the advantages of simple structure, ingenious design and reasonable layout, and forms a radial subdivision by utilizing the suction section, the discharge section, the tail end section and a plurality of middle section sections arranged between the suction section, the discharge section and the tail end section to form a stator part of the centrifugal pump; the pump cavity of the multistage pump comprises two mutually independent chambers, each chamber is internally provided with a group of (a plurality of impellers), and the two groups of impellers are arranged in a back direction, so that the axial force generated by the impellers in the working process can be mutually offset, the balance of the axial force is realized under the condition that a balance disc or a balance drum is not additionally arranged, the integral design difficulty and the production cost of the multistage pump are reduced, the interval time between maintenance and overhaul can be prolonged, and the labor is saved. And the manufacturing process is simple, the manufacturing cost is low, so that the novel LED lamp has multiple advantages, is particularly suitable for popularization and application in the field, and has a very wide market prospect.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The following description will explain embodiments of the present invention with reference to the drawings. As shown in fig. 1: a self-balancing segmental multistage centrifugal pump comprises a suction segment 1, a discharge segment 2 and a tail end segment 3, wherein four middle segment sections 4 are arranged between the suction segment 1 and the discharge segment 2, four middle segment sections 4 are also arranged between the discharge segment 2 and the tail end segment 3, a drive end pump cover 5 is connected to the suction segment 1, the drive end pump cover 5 is connected with a drive end bearing assembly 6, a non-drive end pump cover 7 is connected to the tail end segment 3, the non-drive end pump cover 7 is connected with a non-bearing assembly drive end 8, the drive end bearing assembly 6 and the non-drive end bearing assembly 8 jointly rotate to support a pump shaft 9, the two ends of the pump shaft 9 are respectively provided with a container seal 10 positioned at the outer sides of the drive end pump cover 5 and the non-drive,
the pump cavity between the suction section 1 and the discharge section 2 is a first cavity, the suction section 1 is communicated with the first cavity, the pump cavity between the discharge section 2 and the tail end section 3 is a second cavity, the discharge section 2 is communicated with the second cavity, a first connecting part 11 and a second connecting part 12 are respectively arranged on the discharge section 2 and the tail end section 3, a communicating pipeline 13 is connected between the first connecting part 11 and the second connecting part 12, the suction section 1 and the first connecting part 11 are respectively positioned at the inlet side and the outlet side of the first cavity, the discharge section 2 and the second connecting part 12 are respectively positioned at the outlet side and the inlet side of the second cavity, two groups of impellers 14 which are arranged in a back direction are in key connection on the pump shaft 9, each group comprises four impellers 14, and the impellers 14 are in one-to-one correspondence with the middle section 4.
The utility model discloses working process of self-balancing festival segmentation multistage centrifugal pump as follows: firstly, connecting a driving end of a pump shaft to a driving motor, starting the driving motor to drive the pump shaft 9 and two groups of impellers 14 on the pump shaft to rotate, enabling a medium to be pumped to enter a first cavity through a suction section 1 and be sequentially pressurized by four impellers 14 in the first cavity, enabling the pressurized medium to finally enter a second cavity through a communication pipeline 13 at an outlet side of the first cavity, and enabling the medium entering the second cavity to be sequentially pressurized by the four impellers in the second cavity and then to be discharged through a discharge section 2;
in this way, the medium is discharged after being pressurized by eight impellers 14 in sequence, and in the working process, because the two groups of impellers 14 are arranged in a back-to-back manner, the directions of the axial forces generated by the two groups of impellers 14 are opposite and theoretically equal, that is, the axial forces generated by the two groups of impellers 14 can be mutually offset, so that self-balance is realized.
Claims (1)
1. The utility model provides a self-balancing festival segmentation multistage centrifugal pump which characterized in that: the centrifugal pump comprises a suction section (1), a discharge section (2) and a tail end section (3), wherein four middle section sections (4) are arranged between the suction section (1) and the discharge section (2), four middle section sections (4) are also arranged between the discharge section (2) and the tail end section (3), the suction section (1) is connected with a drive end pump cover (5), the drive end pump cover (5) is connected with a drive end bearing assembly (6), the tail end section (3) is connected with a non-drive end pump cover (7), the non-drive end pump cover (7) is connected with a non-drive end bearing assembly (8), the drive end bearing assembly (6) and the non-drive end bearing assembly (8) jointly rotate to support a pump shaft (9), and the two ends of the pump shaft (9) are respectively provided with a container sealing (10) positioned outside the drive end pump cover (5) and the non-drive end pump cover (7,
the pump cavity between the suction section (1) and the discharge section (2) is a first cavity, the suction section (1) is communicated with the first cavity, the pump cavity between the spitting section (2) and the tail end section (3) is a second cavity, the spitting section (2) is communicated with the second cavity, a first connecting part (11) and a second connecting part (12) are respectively arranged on the spitting section (2) and the tail end section (3), a communication pipeline (13) is connected between the first connecting part (11) and the second connecting part (12), the suction section (1) and the first connection (11) are located on the inlet side and the outlet side of the first chamber respectively, the discharge section (2) and the second connection portion (12) are respectively positioned at the outlet side and the inlet side of the second chamber, two groups of impellers (14) which are arranged back to back are connected to the pump shaft (9) in a key mode, each group comprises four impellers (14), and the impellers (14) correspond to the middle section sections (4) one by one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021645530.9U CN213235459U (en) | 2020-08-10 | 2020-08-10 | Self-balancing sectional type multistage centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021645530.9U CN213235459U (en) | 2020-08-10 | 2020-08-10 | Self-balancing sectional type multistage centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213235459U true CN213235459U (en) | 2021-05-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021645530.9U Active CN213235459U (en) | 2020-08-10 | 2020-08-10 | Self-balancing sectional type multistage centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213235459U (en) |
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2020
- 2020-08-10 CN CN202021645530.9U patent/CN213235459U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A self balancing segmental multistage centrifugal pump Effective date of registration: 20220317 Granted publication date: 20210518 Pledgee: China Construction Bank Corporation Dalian Qingniwaqiao sub branch Pledgor: Dalian Shuanglong Pump Group Co.,Ltd. Registration number: Y2022210000024 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230731 Granted publication date: 20210518 Pledgee: China Construction Bank Corporation Dalian Qingniwaqiao sub branch Pledgor: Dalian Shuanglong Pump Group Co.,Ltd. Registration number: Y2022210000024 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A self balancing segmented multi-stage centrifugal pump Granted publication date: 20210518 Pledgee: China Construction Bank Corporation Dalian Qingniwaqiao sub branch Pledgor: Dalian Shuanglong Pump Group Co.,Ltd. Registration number: Y2024980013895 |