CN203903788U - Rapid overhauling device for normal residual heat removal pump - Google Patents
Rapid overhauling device for normal residual heat removal pump Download PDFInfo
- Publication number
- CN203903788U CN203903788U CN201420298916.5U CN201420298916U CN203903788U CN 203903788 U CN203903788 U CN 203903788U CN 201420298916 U CN201420298916 U CN 201420298916U CN 203903788 U CN203903788 U CN 203903788U
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- CN
- China
- Prior art keywords
- rapid
- overhauling
- heat removal
- residual heat
- overhauling device
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- 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.)
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Abstract
The utility model provides a rapid overhauling device for a normal residual heat removal pump. The rapid overhauling device comprises a hoisting bolt. The rapid overhauling device is characterized in that the hoisting bolt is provided with a nut; the upper end of the hoisting bolt is connected with a hanging bracket and the lower end of the hoisting bolt is welded together with a hole in a flange. According to the rapid overhauling device, the structural design is compact; when the rapid overhauling device is used for overhauling, necessary overhauling or replacement of parts can be implemented without detaching a pump body and a pipeline; a dismounting process is simplified; the rapid overhauling device is good for fault analysis and rapid overhauling of the normal residual heat removal pump.
Description
Technical field
The utility model belongs to nuclear power technology field, particularly the normal residual heat removal pump Quick overhaul of a kind of CAP1400 device.
Background technology
The speed of country's nuclear power developing and construction is swift and violent, but present stage, core pump (one, two, three pump of the core) market of China's nuclear station was substantially still dependent on external import, only have part core triple stage pump to realize production domesticization, under the background of current national nuclear power great development, the production domesticization that realizes core pump has become the primary urgent task of national nuclear power supervision department, nuclear power enterprise and domestic water pump industry.
Residual heat removal pump is the important component part of nuclear power plant reactor residual heat removal system, under extreme operating condition, residual heat removal pump there will be cavitation phenomenons, its sealing element also can often damage, so must change in time poted assemblies and other related components, yet current residual heat removal pump exists dismounting difficulty, the drawback of maintenance trouble.
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 normal residual heat removal pump Quick overhaul device, comprises hanging bolt, it is characterized in that: on described hanging bolt, be provided with nut, hanging bolt upper end is connected with suspension bracket, and the eyelet welding of lower end and flange connects.
The utility model structure design compactness, does not need to dismantle the pump housing during maintenance and pipeline can carry out necessary maintenance for mechanical seal, and can complete the replacing of bearing assembly, has simplified dismounting flow process, is conducive to failure analysis and Quick overhaul.
Accompanying drawing explanation
Fig. 1 is scheme of installation of the present utility model.
Fig. 2 is the A-A section-drawing of Fig. 1.
Fig. 3 is the normal residual heat removal pump structural representation of the applicable CAP1400 of the utility model.
Fig. 4 is the B partial enlarged drawing of Fig. 3.
Fig. 5 is the C partial enlarged drawing of Fig. 3.
In figure: 1. suspension bracket; 2. hanging bolt; 3. flange; 4. impeller; 5. restricted restricting bushing; 6. pump cover; 7. bearing body part; 8. coupler; 9. link span; 10. support ring; 11. mechanical seal parts; 12. axles; 13. impeller lock screws; 201. nut; 701. upper ball cover; 702. upper sealing ring; 703. axle sleeve; 704. bearing; 705. bearing seat; 706. bearing bodies; 707. lower sealing ring; 708. lower ball cover.
The specific 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:
Normal residual heat removal pump Quick overhaul device, comprises on hanging bolt 2 and is provided with nut 201, hanging bolt 2 upper ends are connected with suspension bracket 1, and the eyelet welding of lower end and flange 3 connects.
During concrete enforcement, axle 12 is disposed with coupler 8, bearing body part 7, mechanical seal parts 11, restricted restricting bushing 5, impeller 4 from top to bottom, and impeller 4 is connected with axle 12 by impeller lock screw 13; Bearing body part 7 includes top chock 705, axle sleeve 703, bearing body part 7 is disposed with upper ball cover 701, upper sealing ring 702, axle sleeve 703, back-up ring, lower sealing ring 707, lower ball cover 708 from top to bottom, in bearing seat 705, be provided with bearing body 706, between bearing body 706 and axle sleeve 703, be provided with bearing 704.
Diametral load and residual axial force that bearing body part 7 produces when can support the own wt of pump rotor and turning round, bearing adopts antifriction-bearing box grease lubrication, has reduced bearing body size, conserve space.
Parts 11 adopt integrated mechanical sealing, can guarantee that its normal leakage amount is not more than the requirement of 5cm3/h; Cooling scheme adopts the PLAN23 scheme of API682 standard, easy accessibility, and seal leakage is reclaimed by pump body.
When more changing planes envelope, the middle node of coupler 8 and coupler 8 are removed, after take off upper ball cover 701, upper sealing ring 702, impeller lock screw 13, four bolts that the hitch of dismantling is again connected with motor are for being connected with suspension bracket 1, again flange 3 is connected with bearing seat 705 use bolts, finally, by the nut 201 on rotation hanging bolt 2, by axle 12, bearing body part 7, mechanical seal parts 11 integral demountings, thereby change easily mechanical seal parts 11.
Claims (1)
1. normal residual heat removal pump Quick overhaul device, comprises hanging bolt (2), it is characterized in that: on described hanging bolt (2), be provided with nut (201), hanging bolt (2) upper end is connected with suspension bracket (1), and the eyelet welding of lower end and flange (3) connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298916.5U CN203903788U (en) | 2014-06-06 | 2014-06-06 | Rapid overhauling device for normal residual heat removal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420298916.5U CN203903788U (en) | 2014-06-06 | 2014-06-06 | Rapid overhauling device for normal residual heat removal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203903788U true CN203903788U (en) | 2014-10-29 |
Family
ID=51778075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420298916.5U Active CN203903788U (en) | 2014-06-06 | 2014-06-06 | Rapid overhauling device for normal residual heat removal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203903788U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987026A (en) * | 2015-12-29 | 2016-10-05 | 安徽晋煤中能化工股份有限公司 | Overhauling device and method for multistage centrifugal pump |
-
2014
- 2014-06-06 CN CN201420298916.5U patent/CN203903788U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105987026A (en) * | 2015-12-29 | 2016-10-05 | 安徽晋煤中能化工股份有限公司 | Overhauling device and method for multistage centrifugal pump |
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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 | ||
| 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 |