CN208747588U - A kind of reactor coolant pump thrust bearing shoe valve disk turnover device - Google Patents
A kind of reactor coolant pump thrust bearing shoe valve disk turnover device Download PDFInfo
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- CN208747588U CN208747588U CN201820657987.8U CN201820657987U CN208747588U CN 208747588 U CN208747588 U CN 208747588U CN 201820657987 U CN201820657987 U CN 201820657987U CN 208747588 U CN208747588 U CN 208747588U
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- thrust bearing
- valve disk
- bearing shoe
- shoe valve
- coolant pump
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Abstract
The utility model belongs to nuclear reactor apparatus for examination and repair technical field, more particularly to a kind of reactor coolant pump thrust bearing shoe valve disk turnover device, it include: bracket, supporting mechanism, runner, flywheel locking mechanism, support retention mechanism and pedestal, the base upper surface is symmetrically welded with bracket, the pedestal upper end is welded with support retention mechanism, the support retention mechanism and the sealed connection of supporting mechanism, square boss is provided on the outside of the supporting mechanism, the runner is locked together in the square boss of side supporting mechanism by flywheel locking mechanism, the flywheel locking mechanism welding is at the lower end of the stand.The device of the utility model design, structure is simple, it may be implemented in steadily overturning and being reliably fixed in thrust bearing shoe valve disk switching process, it can effectively avoid that the security reliability that disk body tiling collides with and staff works by mechanical injury, raising substantial equipment site examining and repairing in maintenance process occurs in switching process.
Description
Technical field
The utility model belongs to nuclear reactor apparatus for examination and repair technical field, and in particular to a kind of reactor coolant pump thrust
Watt disk turnover device.
Background technique
In two WWER-1000/V-428 type nuclear reactor plants of certain nuclear power station, it is each configured with 4 " Г Ц Н А-
1391 " type nuclear reactor coolant pumps, the model pump in each unit refueling outage, need to carry out to 1 therein comprehensive
Disassembling overhaul, to remaining 3 progress partial teardown overhauls.In the maintenance process of model pump, it is both needed to thrust bearing part
Permeability test is carried out, and thrust pad is replaced according to test result.
During carrying out permeability test and integral replacing to thrust pad, thrust bearing shoe valve disk need to be overturn, so as to
It is better carried out relevant maintenance labour inspection project.Reactor coolant pump thrust bearing shoe valve disk is the circular disk body for weighing about 1t,
Top both sides of the face are fixed with more than 30 block siliconising carbon, C thrust tile fragments, easily damaged when being subjected to impact load, and component is whole
Cost height nearly 2,000,000.Therefore, how thrust bearing shoe valve disk is steadily overturn and is reliably fixed, for the people in maintenance process
Member and equipment safety, are of great significance.
Utility model content
The utility model aim is to provide a kind of nuclear power plant reactor coolant pump in view of the above shortcomings of the prior art to push away
Power watt disk turnover device, it is simple and reliable for structure, it can be realized in switching process and steadily overturn and be reliably fixed.
The technical solution of the utility model is:
A kind of turnover device of nuclear power plant reactor coolant pump thrust bearing shoe valve disk turnover device, comprising: bracket, support machine
Structure, runner, flywheel locking mechanism, support retention mechanism and pedestal, the base upper surface are symmetrically welded with bracket, the bracket
Upper end is welded with support retention mechanism, the support retention mechanism and the sealed connection of supporting mechanism, the supporting mechanism outside
It is provided with square boss, the runner is locked together in the square boss of side supporting mechanism by flywheel locking mechanism, described to fly
Take turns locking mechanism welding at the lower end of the stand.
Support retention mechanism generally inverted ladder type structure, support retention mechanism upper face center as described above offers semicircle
Groove, support retention mechanism upper surface also hinge are provided with the sealed end cap of semicircle, and the semicircle of the sealed end cap of semicircle is straight
The diameter of diameter and the semicircle groove matches.
Clamping screw is additionally provided with beside the semicircle groove of support retention mechanism upper surface as described above.
Integrally T-shaped structure, the supporting mechanism outboard square-like boss side are additionally provided with circle to supporting mechanism as described above
The other side of cylindrical end tangs, cylindrical boss is provided with limited block；The limited block upper/lower terminal is each provided with an adjusting spiral shell
Bolt, limited block lower end are additionally provided with several fixing bolts, and square boss outer surface centre is provided with threaded hole.
Support retention mechanism upper face center as described above opens up semicircle groove diameter and supporting mechanism cylindrical boss is straight
Diameter matches.
Supporting mechanism quantity as described above is two, and the runner is locked together in one of support by flywheel locking mechanism
In mechanism；It is evenly arranged with several template limit card slots in the runner wheel disc side, is opened up in each limit card slot
Have a fixed pin holes, limit card slot quantity and specific installation site according to flip angle it needs to be determined that.
Flywheel locking mechanism as described above generally long strip-board shape structure, it is recessed that flywheel locking mechanism outer surface is provided with limit
Slot, the limiting groove are in E font structure, are engaged for the template limit card slot with runner.
Spring, fixed pin holes and fixed pin, the fixation are additionally provided in flywheel locking mechanism limiting groove as described above
Pin is of an L-shaped structure；Fixed pin penetrates spring, and relative limit card slot is vertically set in flywheel locking mechanism limiting groove.
The beneficial effects of the utility model are: a kind of nuclear power plant reactor coolant pump thrust designed by the utility model
Watt disk method for turning and device, structure are simple, it can be achieved that steadily overturning and being reliably fixed in thrust bearing shoe valve disk switching process, energy
Effectively avoid occurring in switching process that disk body tiling collides with and staff improves by mechanical injury in maintenance process
The security reliability of substantial equipment site examining and repairing work.
Detailed description of the invention
Fig. 1 is a kind of structure of nuclear power plant reactor coolant pump thrust bearing shoe valve disk turnover device designed by the utility model
Schematic diagram；
Fig. 2 is a kind of support machine of nuclear power plant reactor coolant pump thrust bearing shoe valve disk turnover device described in the utility model
Structure main view；
Fig. 3 is a kind of support machine of nuclear power plant reactor coolant pump thrust bearing shoe valve disk turnover device described in the utility model
Structure side view
Fig. 4 is that a kind of runner of nuclear power plant reactor coolant pump thrust bearing shoe valve disk turnover device described in the utility model shows
It is intended to；
Fig. 5 is a kind of flywheel card of nuclear power plant reactor coolant pump thrust bearing shoe valve disk turnover device described in the utility model
Latch mechanism schematic diagram；
Fig. 6 is a kind of support of nuclear power plant reactor coolant pump thrust bearing shoe valve disk turnover device provided by the utility model
Retention mechanism schematic diagram；
Fig. 7 is a kind of main view of nuclear power plant reactor coolant pump thrust bearing shoe valve disk turnover device provided by the utility model
Figure.
In figure: 1. brackets, 2. supporting mechanisms, 3. fixing bolts, 4. runners, 5. flywheel locking mechanisms, 6. support fastening machines
Structure, 7. thrust bearing shoe valve disks, 8. adjusting bolts, 9. pedestals, 10. bumping squares, 11 cylindrical bumps, 12. limited blocks, 13. fixed pins,
14. stop screw.
Specific embodiment
The utility model technology is described further below:
As shown in figs. 1-7, a kind of nuclear power plant reactor coolant pump thrust bearing shoe valve disk turnover device and its installation method, packet
It includes: bracket 1, supporting mechanism 2, runner 4, flywheel locking mechanism 5, support retention mechanism 6 and pedestal 9,9 upper surface pair of pedestal
Title is welded with bracket 1, and 1 upper end of bracket is welded with support retention mechanism 6, the support retention mechanism 6 and supporting mechanism 2
Sealed connection, square boss 10 is provided on the outside of the supporting mechanism 2, and the runner 4 is locked together in one by flywheel locking mechanism 5
In the square boss of collateral support mechanism 2, the flywheel locking mechanism 5 is welded on 1 lower end of bracket.
The support retention mechanism 6 generally inverted ladder type structure, it is recessed that 6 upper face center of support retention mechanism offers semicircle
Slot, 6 upper surface of support retention mechanism also hinge are provided with the sealed end cap of semicircle, half circular diameter of the sealed end cap of semicircle
Match with the diameter of the semicircle groove.
It is additionally provided with clamping screw beside the 6 upper surface semicircle groove of support retention mechanism, is used for secure closure state
Under semicircle lock end cap.
The whole T-shaped structure of the supporting mechanism 2,2 outboard square-like boss of supporting mechanism, 10 side is additionally provided with circle
Cylindrical end tangs 11, the other side of cylindrical boss 11 are provided with limited block 12；12 upper/lower terminal of limited block is each provided with one
A adjusting bolt 8,12 lower end of limited block are additionally provided with several fixing bolts 3,10 outer surface centre of the square boss setting
There is threaded hole.
6 upper face center of support retention mechanism opens up semicircle groove diameter and 2 cylindrical boss 11 of supporting mechanism is straight
Diameter matches.
2 quantity of supporting mechanism is two, and the runner 4 is locked together in one of support by flywheel locking mechanism 5
In mechanism 2；The runner 4 takes turns and is evenly arranged with several template limit card slots in disc side, opens in each limit card slot
Equipped with fixed pin holes, limit card slot quantity according to flip angle it needs to be determined that.
The flywheel locking mechanism 5 generally long strip-board shape structure, it is recessed that 5 outer surface of flywheel locking mechanism is provided with limit
Slot, the limiting groove are in E font structure, are engaged for the template limit card slot with runner 4.The flywheel locking mechanism 5 limits
It is additionally provided with spring, fixed pin holes and fixed pin 13 in the groove of position, the fixed pin 13 is of an L-shaped structure；Fixed pin 13 penetrates bullet
Spring, relative limit card slot are vertically set in 5 limiting groove of flywheel locking mechanism.
The installation method of the nuclear power plant reactor coolant pump thrust bearing shoe valve disk turnover device, in turn includes the following steps:
Fixing bolt 3: being passed through the overturning fabrication hole being arranged on thrust bearing shoe valve disk 7 by step 1, with the fixed company of supporting mechanism 2
It connects；
Step 2: the combiner of mounted supporting mechanism 2 and thrust bearing shoe valve disk 7 is placed on support fastening machine using crane
At 6 upper surface semicircle groove of structure, adjustment, which adjusts bolt 8, makes the thrust bearing shoe valve disk 7 on both ends supporting mechanism 2 be in level, and will branch
The seat 6 sealed end cap of top semicircle of retention mechanism is put down, and is tightened by clamping screw；
Step 3: runner 4 being put at the square boss 10 of one of supporting mechanism 2, stop screw 14 is screwed in outer
In the threaded hole of 11 center of side square boss；
Step 4: fixed pin 13 in flywheel locking mechanism 5 is penetrated in the template limit card slot of 4 side of runner, is locked together in
On supporting mechanism 2；Prevent thrust bearing shoe valve disk 7 from overturning；
Step 5: when executing the overturning operation of thrust bearing shoe valve disk 7, fixed pin 13 in flywheel locking mechanism 5 is pressed, runner 4 is passed through
After the overturning to specified angle of thrust bearing shoe valve disk 7, the plate of 4 side of runner is penetrated again by fixed pin 13 in flywheel locking mechanism 5
In type limit card slot, runner 4 is limited, completes overturning.
Embodiment:
Two welding setting spacing of bracket 1 as shown in attached drawing 1-7 are slightly larger than 7 diameter of thrust bearing shoe valve disk, and fixing bolt 3 is for solid
Determine thrust bearing shoe valve disk 7, the overturning fabrication hole being arranged in 3 size of fixing bolt and thrust bearing shoe valve disk 7 matches, and can undertake and accordingly cut
Shearing stress.Runner 4 is locked together on one of supporting mechanism 2 by flywheel locking mechanism 5, and runner 4 drives thrust bearing shoe valve disk 7 to turn over
Turn, flywheel locking mechanism 5 is used to limit the circumferential movement of supporting mechanism 2.Utility model device specifically installs operating method such as
Under:
Fixing bolt 3: being passed through the overturning fabrication hole being arranged on thrust bearing shoe valve disk 7 by step 1, with the fixed company of supporting mechanism 2
It connects；
Step 2: the combiner of mounted supporting mechanism 2 and thrust bearing shoe valve disk 7 is placed on support fastening machine using crane
At 6 upper surface semicircle groove of structure, adjustment, which adjusts bolt 8, makes the thrust bearing shoe valve disk 7 on both ends supporting mechanism 2 be in level, and will branch
The seat 6 sealed end cap of top semicircle of retention mechanism is put down, and is tightened by clamping screw；
Step 3: runner 4 being put at the square boss 10 of one of supporting mechanism 2, stop screw 14 is screwed in outer
In the threaded hole of 11 center of side square boss, for limiting the axial displacement of runner 4.
Step 4: fixed pin 13 in flywheel locking mechanism 5 is penetrated in the template limit card slot of 4 side of runner, is locked together in
On supporting mechanism 2；Prevent thrust bearing shoe valve disk 7 from overturning；
Step 5: when executing the overturning operation of thrust bearing shoe valve disk 7, fixed pin 13 in flywheel locking mechanism 5 is pressed, staff is logical
Runner 4 is crossed by after the overturning to specified angle of thrust bearing shoe valve disk 7, penetrates 4 side of runner again by fixed pin 13 in flywheel locking mechanism 5
In the template limit card slot in face, runner 4 is limited, completes overturning.
The utility model is explained in detail above in conjunction with embodiment, but the utility model is not limited to above-mentioned implementation
Example, within the knowledge of a person skilled in the art, can also be in the premise for not departing from the utility model aims
It is lower that various changes can be made.The content being not described in detail in the utility model can use the prior art.
Claims (8)
1. a kind of reactor coolant pump thrust bearing shoe valve disk turnover device, it is characterised in that: include: bracket (1), supporting mechanism (2),
Runner (4), flywheel locking mechanism (5), support retention mechanism (6) and pedestal (9), pedestal (9) upper surface are symmetrically welded with
Bracket (1), bracket (1) upper end are welded with support retention mechanism (6), the support retention mechanism (6) and supporting mechanism
(2) sealed connection, supporting mechanism (2) outside are provided with square boss (10), and the runner (4) passes through flywheel locking mechanism
(5) it is locked together in the square boss of side supporting mechanism (2), the flywheel locking mechanism (5) is welded on bracket (1) lower end.
2. a kind of reactor coolant pump thrust bearing shoe valve disk turnover device as described in claim 1, it is characterised in that: the support
Retention mechanism (6) generally inverted ladder type structure, support retention mechanism (6) upper face center offer semicircle groove, the support
Retention mechanism (6) upper surface also hinge is provided with the sealed end cap of semicircle, half circular diameter of the sealed end cap of semicircle and described half
The diameter of round recessed matches.
3. a kind of reactor coolant pump thrust bearing shoe valve disk turnover device as claimed in claim 2, it is characterised in that: the support
It is additionally provided with clamping screw beside the semicircle groove of retention mechanism (6) upper surface, the semicircle for secure closure state locks end cap.
4. a kind of reactor coolant pump thrust bearing shoe valve disk turnover device as claimed in claim 2, it is characterised in that: the support
The whole T-shaped structure of mechanism (2), supporting mechanism (2) outboard square-like boss (10) side is additionally provided with cylindrical boss
(11), the other side of cylindrical boss (11) is provided with limited block (12)；Limited block (12) upper/lower terminal is each provided with one
A adjusting bolt (8), limited block (12) lower end are additionally provided with several fixing bolts (3), in square boss (10) outer surface
Threaded hole is provided at centre.
5. a kind of reactor coolant pump thrust bearing shoe valve disk turnover device as claimed in claim 4, it is characterised in that: the support
Retention mechanism (6) upper face center opens up semicircle groove diameter and matches with supporting mechanism (2) cylindrical boss (11) diameter.
6. a kind of reactor coolant pump thrust bearing shoe valve disk turnover device as claimed in claim 2, it is characterised in that: the support
Mechanism (2) quantity is two, and the runner (4) is locked together on one of supporting mechanism (2) by flywheel locking mechanism (5)；
Several template limit card slots are evenly arranged in runner (4) the wheel disc side, are offered in each limit card slot solid
Fixed pin hole, limit card slot quantity and specific installation site according to flip angle it needs to be determined that.
7. a kind of reactor coolant pump thrust bearing shoe valve disk turnover device as claimed in claim 6, it is characterised in that: the flywheel
Locking mechanism (5) generally long strip-board shape structure, flywheel locking mechanism (5) outer surface are provided with limiting groove, and the limit is recessed
Slot is in E font structure, for engaging with the template limit card slot of runner (4).
8. a kind of reactor coolant pump thrust bearing shoe valve disk turnover device as claimed in claim 7, it is characterised in that: the flywheel
Spring, fixed pin holes and fixed pin (13), the L-shaped knot of the fixed pin (13) are additionally provided in locking mechanism (5) limiting groove
Structure；Fixed pin (13) penetrates spring, and relative limit card slot is vertically set in flywheel locking mechanism (5) limiting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820657987.8U CN208747588U (en) | 2018-05-04 | 2018-05-04 | A kind of reactor coolant pump thrust bearing shoe valve disk turnover device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820657987.8U CN208747588U (en) | 2018-05-04 | 2018-05-04 | A kind of reactor coolant pump thrust bearing shoe valve disk turnover device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208747588U true CN208747588U (en) | 2019-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820657987.8U Active CN208747588U (en) | 2018-05-04 | 2018-05-04 | A kind of reactor coolant pump thrust bearing shoe valve disk turnover device |
Country Status (1)
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| CN (1) | CN208747588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726458A (en) * | 2018-05-04 | 2018-11-02 | 江苏核电有限公司 | A kind of reactor coolant pump thrust bearing shoe valve disk turnover device and its installation method |
-
2018
- 2018-05-04 CN CN201820657987.8U patent/CN208747588U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108726458A (en) * | 2018-05-04 | 2018-11-02 | 江苏核电有限公司 | A kind of reactor coolant pump thrust bearing shoe valve disk turnover device and its installation method |
| CN108726458B (en) * | 2018-05-04 | 2023-08-15 | 江苏核电有限公司 | Reactor coolant pump thrust tile disc overturning device and installation method thereof |
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