CN203756582U - Tooth-type rotation shell nuclear pump utilizing thrust rings to balance axial force - Google Patents
Tooth-type rotation shell nuclear pump utilizing thrust rings to balance axial force Download PDFInfo
- Publication number
- CN203756582U CN203756582U CN201420157263.9U CN201420157263U CN203756582U CN 203756582 U CN203756582 U CN 203756582U CN 201420157263 U CN201420157263 U CN 201420157263U CN 203756582 U CN203756582 U CN 203756582U
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- China
- Prior art keywords
- speed shaft
- rotation shell
- axial force
- shell nuclear
- thrust rings
- 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.)
- Expired - Lifetime
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- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000001133 acceleration Effects 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A tooth-type rotation shell nuclear pump utilizing thrust rings to balance axial force comprises a rotation shell nuclear pump rotor, an acceleration gearbox and a high-speed shaft, wherein the high-speed shaft and a low-speed shaft are arranged in the acceleration gearbox, gears for connection are arranged between the high-speed shaft and the low-speed shaft, and fluid dynamic pressure bearings are utilized at two ends of the low-speed shaft; a protection shell is arranged on an external circle of the rotation shell nuclear pump rotor which is connected with the high-speed shaft, the thrust rings are arranged at two ends of the gear on the high-speed shaft, and slopes are arranged on lateral sides of the thrust rings to form oil wedge faces. By arranging the thrust rings, residual imbalance axial force generated by pressure at an inlet of the rotation shell pump is balanced, centrifugal radial force generated by rotation is borne, support rigidity and strength of a bearing part of the rotation shell pump are improved, effect and damage to the bearings from the axial force are reduced, operation cost of the rotation shell nuclear pump is lowered, and workload of operation and maintenance is reduced.
Description
Technical field
The utility model belongs to nuclear power technology field, and particularly a kind of tooth-like shell nuclear power pump that revolves that adopts Thrust ring balancing axial thrust, also can be applicable to small flow, the hyperpressure operating modes such as civilian oil, chemical industry, papermaking, spray.
Background technique
At present, small flow, high-head pump rotor part adopts rolling bearing, be subject to the precision of rolling bearing, the restriction such as bearing capacity and limit speed, the entrance working pressure of rotary case pump is lower, its residual axial force is born by being arranged on epitrochanterian angular contact ball bearing, along with increase and the raising of nuclear power field use occasion to easily damaged parts use phase in longevity requirements such as bearings of inlet pressure, simultaneously, the bearing capacity of the axial force producing to bearing and the working pressure requirement raising of mechanical seal, reduced the working life of easily damaged parts, increase operation cost high, workload and the cost of operation maintenance are increased.
Summary of the invention
The purpose of this utility model will solve the problems of the technologies described above.
The purpose of this utility model is achieved in that a kind of tooth-like shell nuclear power pump that revolves that adopts Thrust ring balancing axial thrust, comprise and revolve shell nuclear power pump rotor, speedup box, high speed shaft, in speedup box, be provided with high speed shaft, lower velocity shaft, between high speed shaft and lower velocity shaft, be provided with gear and be connected, the bearing at lower velocity shaft two ends adopts hydrodynamic pressure bearing; Revolve shell nuclear power pump rotor outer ring and be provided with containment vessel, revolve shell nuclear power pump rotor and be connected with high speed shaft, it is characterized in that: the gear two ends on described high speed shaft are provided with Thrust ring, and the side of Thrust ring is provided with gradient, form oil film wedge face.
The utility model is by arranging Thrust ring, the uneven axial force of remnants that balance rotary case pump inlet pressure produces, bear the centrifugal radial force that rotation produces, rigidity of support and the intensity of the bearing part of rotary case pump are improved, reduce impact and the loss of axial force on bearing, reduce rotation shell type nuclear power pump operation cost, reduced the workload of operation maintenance.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1. revolve shell nuclear power pump rotor; 2. containment vessel; 3. Pitot tube; 4. Thrust ring; 5. speedup box; 6. high speed shaft; 7. lower velocity shaft; 8. hydrodynamic pressure bearing.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, but not as to restriction of the present utility model:
A kind of tooth-like shell nuclear power pump that revolves that adopts Thrust ring balancing axial thrust, comprise and revolve shell nuclear power pump rotor 1, speedup box 5, high speed shaft 6, in speedup box 5, be provided with high speed shaft 6, lower velocity shaft 7, between high speed shaft 6 and lower velocity shaft 7, be provided with gear and be connected, the bearing 8 at lower velocity shaft 7 two ends adopts hydrodynamic pressure bearing; Revolve shell nuclear power pump rotor 1 outer ring and be provided with containment vessel 2, revolve shell nuclear power pump rotor 1 and be connected with high speed shaft 6, the gear two ends on high speed shaft 6 are provided with Thrust ring 4, and the side of Thrust ring 4 is provided with gradient, form oil film wedge face.
When concrete enforcement, the relative velocity at the utility model utilization size pitch circle place is 0, small gear two ends at high speed shaft 6 arrange Thrust ring, the axial force at the small gear two ends of high speed shaft 6 is revolve the axial force of shell nuclear power pump rotor lack of equilibrium and single cylindrical gear axial force poor, the axial force at the small gear two ends of high speed shaft 6 is delivered to the side of gearwheel by Thrust ring 4, thereby be delivered on the thrust-bearing in Large Gear Shaft During, reduce the power consumption of high-speed bearing; The oil film wedge face that Thrust ring 4 sides form and oil film rigidity complete the transmission of axial force, have improved bearing capacity; Rotary case pump is promoted to 3.8MPa to pump intake working pressure.
The utility model holds the operating mode occasion of filling pump, shaft seal water injection pump on small pump, KBA for the CVSization of AP1000, CAP1400 generation Ⅲ nuclear power technology, substitute multistage centrifugal nuclear power pump, reciprocating pump volume nuclear power pump, also can be applicable to small flow, the hyperpressure operating modes such as civilian oil, chemical industry, papermaking, spray.
Claims (1)
1. one kind adopts the tooth-like shell nuclear power pump that revolves of Thrust ring balancing axial thrust, comprise and revolve shell nuclear power pump rotor (1), speedup box (5), high speed shaft (6), in speedup box (5), be provided with high speed shaft (6), lower velocity shaft (7), between high speed shaft (6) and lower velocity shaft (7), be provided with gear and be connected, the bearing (8) at lower velocity shaft (7) two ends adopts hydrodynamic pressure bearing; Revolve shell nuclear power pump rotor (1) outer ring and be provided with containment vessel (2); revolving shell nuclear power pump rotor (1) is connected with high speed shaft (6); it is characterized in that: the gear two ends on described high speed shaft (6) are provided with Thrust ring (4), and the side of Thrust ring (4) is provided with gradient, form oil film wedge face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157263.9U CN203756582U (en) | 2014-04-02 | 2014-04-02 | Tooth-type rotation shell nuclear pump utilizing thrust rings to balance axial force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157263.9U CN203756582U (en) | 2014-04-02 | 2014-04-02 | Tooth-type rotation shell nuclear pump utilizing thrust rings to balance axial force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756582U true CN203756582U (en) | 2014-08-06 |
Family
ID=51251864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420157263.9U Expired - Lifetime CN203756582U (en) | 2014-04-02 | 2014-04-02 | Tooth-type rotation shell nuclear pump utilizing thrust rings to balance axial force |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203756582U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265639A (en) * | 2014-09-15 | 2015-01-07 | 江苏海狮泵业制造有限公司 | Gear speed increasing assembly type high speed rotating casing pump unit |
| CN105526187A (en) * | 2015-12-16 | 2016-04-27 | 三一环保科技有限公司 | Thrust balancing device for steam centrifugal compressor and steam centrifugal compressor |
-
2014
- 2014-04-02 CN CN201420157263.9U patent/CN203756582U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104265639A (en) * | 2014-09-15 | 2015-01-07 | 江苏海狮泵业制造有限公司 | Gear speed increasing assembly type high speed rotating casing pump unit |
| CN105526187A (en) * | 2015-12-16 | 2016-04-27 | 三一环保科技有限公司 | Thrust balancing device for steam centrifugal compressor and steam centrifugal compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 98, Yongyi Road, Chengxi Avenue, Chengnan Industrial Park, Jingjiang City, Taizhou City, Jiangsu Province, 214500 Patentee after: JIANGSU HAISHI PUMPS MANUFACTURING Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 98, Yongyi Road, Chengxi Avenue, Chengnan Industrial Park, Jingjiang City, Taizhou City, Jiangsu Province, 214500 Patentee before: JIANGSU HAISHI PUMPS MANUFACTURING Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address after: No. 98, Yongyi Road, Chengxi Avenue, Chengnan Industrial Park, Jingjiang City, Taizhou City, Jiangsu Province, 214500 Patentee after: JIANGSU HAISHI PUMPS MANUFACTURING Co.,Ltd. Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: No. 98, Yongyi Road, Chengxi Avenue, Chengnan Industrial Park, Jingjiang City, Taizhou City, Jiangsu Province, 214500 Patentee before: JIANGSU HAISHI PUMPS MANUFACTURING Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |