CN108724060A - A kind of reactor coolant pump mechanical seal maintenance bearing and its application method - Google Patents
A kind of reactor coolant pump mechanical seal maintenance bearing and its application method Download PDFInfo
- Publication number
- CN108724060A CN108724060A CN201711135256.3A CN201711135256A CN108724060A CN 108724060 A CN108724060 A CN 108724060A CN 201711135256 A CN201711135256 A CN 201711135256A CN 108724060 A CN108724060 A CN 108724060A
- Authority
- CN
- China
- Prior art keywords
- mechanical seal
- coolant pump
- reactor coolant
- pump mechanical
- machine
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
- B25B11/02—Assembly jigs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/08—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for attachment of work holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/14—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby with provision for adjusting the bench top
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/605—Mounting; Assembling; Disassembling specially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to Nuclear Power Station power engineering technology fields, and in particular to a kind of reactor coolant pump mechanical seal maintenance bearing and its application method.A kind of reactor coolant pump mechanical seal maintenance bearing of the present invention, including bottom plate, column, upper support component, crossbeam, limitation bar, jack inner sleeve, jack housing and handwheel：Jack inner sleeve bottom is embedded in bottom hole, fastens jack inner sleeve and bottom plate；Handwheel is screwed in into jack inner sleeve, and will be placed on handwheel outside jack；Column is connect with bottom plate and upper support component；Locating piece is connected to upper support component.The present invention can be positioned and be clamped to mechanical sealing assembly in reactor coolant pump mechanical seal maintenance process, and dismounting work is carried out to facilitate.
Description
Technical field
The invention belongs to Nuclear Power Station power engineering technology fields, and in particular to a kind of reactor coolant pump mechanical seal
Overhaul bearing and its application method.
Background technology
The disassembling overhaul of nuclear reactor coolant pump be related to one compared with based on and very important maintenance procedures, i.e., pair
The mechanical sealing assembly part of nuclear reactor coolant pump carries out Disintegration overhaul.
During disassembling and installing mechanical seal various components, need using suspender from mechanical seal casinghousing successively
Handling goes out each component, and mechanical seal is needed to keep certain levelness can be smooth since radial clearance is smaller, in hoisting process
It takes out, while in dismounting, needing that mechanical seal inner sleeve is protected and positioned, dismounting work can be carried out.Thus there is an urgent need for
A kind of positioning and clamping tool is studied to meet the requirement of mechanical seal maintenance technology.
Invention content
The technical problem to be solved in the invention is：There is provided a kind of reactor coolant pump mechanical seal maintenance bearing and its
Application method is positioned and is clamped to mechanical sealing assembly in reactor coolant pump mechanical seal maintenance process, to
Facilitate and carries out dismounting work.
It is described that technical scheme is as follows：
A kind of reactor coolant pump mechanical seal maintenance bearing, including bottom plate, column, upper support component, crossbeam, limitation
Bar, jack inner sleeve, jack housing and handwheel：The bottom plate is circular plate structure, and center is equipped with round hole；Institute
It is columnar stays structure to state column；The upper support component is with certain thickness circular ring structure, and annulus is equipped with several circles
Platform shape is recessed, and L-shaped locating piece is connect by bolt with upper support component；The crossbeam is string configuration, and both ends are equipped with U-shaped
Slot；The limitation bar is club shaped structure.Jack inner sleeve bottom is embedded in bottom hole, fastens jack inner sleeve and bottom plate；By hand
Wheel screws in jack inner sleeve, and will be placed on handwheel outside jack；Column is connect with bottom plate and upper support component；It will determine
Position block is connected to support component.
Preferably：The identical truncated cone-shaped of 16 sizes is evenly distributed on the circular ring structure of the upper support component
Recess.
Preferably：The bottom plate, column, upper support component, crossbeam, limitation bar, jack inner sleeve, outside jack
Set, handwheel are all made of stainless steel material.The handwheel can also be inserted with handle, the preferred stainless steel material of handle.
A method of machine sealing assembly dismounting being carried out using reactor coolant pump mechanical seal maintenance bearing, including following
Step：
Step S1 adjusts reactor coolant pump mechanical seal maintenance bearing levelness；
Step S2 slings machine using suspender and seals, it is made to be supported in above support component；
Step S3 rotation hand wheels so that jack housing rises so that the key that machine is sealed up enters jack housing locating slot,
Complete positioning；
Step S4 starts the disintegration operation of machine sealing assembly.
A method of machine sealing assembly installation being carried out using reactor coolant pump mechanical seal maintenance bearing, including following
Step：
Step P1 adjusts reactor coolant pump mechanical seal maintenance bearing levelness；
Step P2 slings machine using suspender and seals, and limitation bar is penetrated machine sealing assembly bolt hole, machine sealing assembly is made to be supported in
Above support component；
Step P3 rotation hand wheels so that jack housing declines；
It is in suspended state that step P4, which slings the machine for installing rotating seat envelope inner sleeve to machine envelope interior, and crossbeam is penetrated in machine envelope
It covers in top-portion apertures, and both sides U-lag is screwed in into limitation bar；
Step P5 jacks up crossbeam to limitation bar restraining position using jackscrew；
Step P6 rotation hand wheels so that jack housing rises so that the key that machine is sealed up enters jack housing locating slot,
It is the handwheel that stops rotating when designated value that cross rail top, which is measured, with machine envelope inner sleeve top-portion apertures upper and lower gap, and it is fixed that this opportunity envelope inner sleeve is completed
Position；
Step P7 removes crossbeam, starts machine sealing assembly residue installation operation.
Preferably：In step S1 or step P1, reactor coolant pump mechanical seal is adjusted using level meter
Bearing levelness is overhauled, the precision of level meter is 0.02mm/m.
Beneficial effects of the present invention are：
(1) a kind of reactor coolant pump mechanical seal maintenance bearing of the invention, can carry out mechanical sealing assembly
It clamps；
(2) a kind of reactor coolant pump mechanical seal maintenance bearing of the invention, can adjust mechanical sealing assembly
Levelness and centering；
(3) a kind of reactor coolant pump mechanical seal maintenance bearing of the invention, can be in mechanical seal in machine envelope
Set component is protected and is positioned；
(4) a kind of reactor coolant pump mechanical seal maintenance bearing of the invention, disclosure satisfy that each component of mechanical seal
The prerequisite of dismounting, improves overhaul efficiency.
Description of the drawings
Fig. 1 is a kind of reactor coolant pump mechanical seal maintenance bearing total figure of the present invention
Fig. 2 is a kind of reactor coolant pump mechanical seal maintenance base-plate of the present invention；
Fig. 3 is a kind of reactor coolant pump mechanical seal maintenance bearing column of the present invention；
Fig. 4 is support component on a kind of reactor coolant pump mechanical seal maintenance bearing of the present invention；
Fig. 5 is a kind of reactor coolant pump mechanical seal maintenance bearing locating piece of the present invention；
Fig. 6 is a kind of reactor coolant pump mechanical seal maintenance bearing jack inner sleeve of the present invention；
Fig. 7 is a kind of reactor coolant pump mechanical seal maintenance bearing jack housing of the present invention；
Fig. 8 is a kind of reactor coolant pump mechanical seal maintenance bearing handwheel of the present invention；
Fig. 9 is a kind of reactor coolant pump mechanical seal maintenance bearing handwheel handle of the present invention；
Figure 10 is that a kind of reactor coolant pump mechanical seal maintenance bearing of the present invention limits bar；
Figure 11 is a kind of reactor coolant pump mechanical seal maintenance support beam of the present invention；
Figure 12 is that a kind of reactor coolant pump mechanical seal maintenance bearing of the present invention uses schematic diagram.
In figure, 1- crossbeams, the upper support components of 2-, 3- columns, 4- bottom plates, 5- handles, 6- locating pieces, 7- jack housings,
8- handwheels, 9- jack inner sleeves, 10- limit bar.
Specific implementation mode
With reference to the accompanying drawings and examples a kind of reactor coolant pump mechanical seal maintenance bearing to the present invention and its
Application method is described in detail.
As shown in Figure 1, the present invention a kind of reactor coolant pump mechanical seal maintenance bearing, including bottom plate 4, column 3,
Upper support component 2, crossbeam 1, limitation bar 10, jack inner sleeve 9, jack housing 7 and handwheel 8.
As shown in Fig. 2, the bottom plate 4 is circular plate structure, center is equipped with round hole.
As shown in figure 3, the column 3 is columnar stays structure.
As shown in figure 4, the upper support component 2 is with certain thickness circular ring structure, annulus is equipped with several round platforms
Shape is recessed, and L-shaped locating piece shown in Fig. 56 is connect by bolt with upper support component 2.In the present embodiment, the circle of upper support component 2
The identical truncated cone-shaped recess of 16 sizes is evenly distributed on ring structure, cup depth is more than limitation 10 bottom bearing height of bar,
It is levelling to avoid limitation 10 bottom influences machine sealing assembly of bar.
As shown in figure 11, the crossbeam 1 is string configuration, and both ends are equipped with U-lag, top is processed using screw tap after drilling
Wire hole.
As shown in Figure 10, the limitation bar 10 is club shaped structure.
The bottom plate 4, column 3, upper support component 2, crossbeam 1, limitation 10 material of bar are preferably stainless steel.
As shown in fig. 6, the jack inner sleeve 9 is processed using stainless steel bar, go out each table top and screw thread using lathe car,
Drill out bolt hole；As shown in fig. 7, the jack housing 7 is equally processed using stainless steel bar, go out each using lathe car
Face mills out locating slot using milling machine.
As shown in figure 8, the handwheel 8 is processed using stainless steel, go out internal thread using lathe process.
As shown in figure 9, the handle 5 is stainless steel thin bar.
The assembly relation of each part is：9 bottom of jack inner sleeve is embedded in 4 through-hole of bottom plate, using in bolt fastening jack
Set 9 and bottom plate 4；The handwheel 8 for being inserted with handle 5 is screwed in into jack inner sleeve 9, and jack housing 7 is placed on handwheel 8；It will
Column 3 is welded to connect with bottom plate 4 and upper support component 2 successively；Locating piece 6 is connected to upper support component 2 using bolt.
Using a kind of reactor coolant pump mechanical seal maintenance bearing progress machine sealing assembly dismounting of the present invention, including with
Lower step：
Step S1 adjusts reactor coolant pump mechanical seal maintenance bearing levelness, precision 0.02mm/ using level meter
m；
Step S2 slings machine using suspender and seals, it is made to be supported in 2 top of support component；
Step S3 rotation hand wheels 8 so that jack housing 7 rises so that the key that machine is sealed up enters the positioning of jack housing 7
Slot completes positioning；
Step S4 starts the disintegration operation of machine sealing assembly.
As shown in figure 12, machine sealing assembly is carried out using a kind of reactor coolant pump mechanical seal maintenance bearing of the present invention
Installation, includes the following steps：
Step P1 adjusts reactor coolant pump mechanical seal maintenance bearing levelness, precision 0.02mm/ using level meter
m；
Step P2 slings machine using suspender and seals, and limitation bar 10 is penetrated machine sealing assembly bolt hole, machine sealing assembly is made to be supported in
2 top of upper support component；
Step P3 rotation hand wheels 8 so that jack housing 7 declines；
It is in suspended state that step P4, which slings the machine for installing rotating seat envelope inner sleeve to machine envelope interior, and crossbeam 1 is penetrated machine envelope
In inner sleeve top-portion apertures, and both sides U-lag is screwed in into limitation bar 10；
Step P5 jacks up crossbeam 1 to limitation 10 restraining position of bar using jackscrew；
Step P6 rotation hand wheels 8 so that jack housing 7 rises so that the key that machine is sealed up enters the positioning of jack housing 7
Slot, it is the handwheel 8 that stops rotating when designated value to measure 1 top of crossbeam with machine envelope inner sleeve top-portion apertures upper and lower gap, this opportunity seals inner sleeve
Complete positioning；
Step P7 removes crossbeam 1, starts machine sealing assembly residue installation operation.
Claims (8)
1. a kind of reactor coolant pump mechanical seal maintenance bearing, including bottom plate (4), column (3), upper support component (2), cross
Beam (1), limitation bar (10), jack inner sleeve (9), jack housing (7) and handwheel (8), it is characterised in that：
The bottom plate (4) is circular plate structure, and center is equipped with round hole；
The column (3) is columnar stays structure；
The upper support component (2) is with certain thickness circular ring structure, and for annulus equipped with several truncated cone-shapeds recess, L-shaped is fixed
Position block (6) is connect by bolt with upper support component (2)；
The crossbeam (1) is string configuration, and both ends are equipped with U-lag；
The limitation bar (10) is club shaped structure；
Jack inner sleeve (9) bottom is embedded in bottom plate (4) through-hole, fastening jack inner sleeve (9) and bottom plate (4)；Handwheel (8) are screwed in
Jack inner sleeve (9), and jack housing (7) is placed on handwheel (8)；By column (3) and bottom plate (4) and upper support component
(2) it connects；Locating piece (6) is connected to upper support component (2).
2. a kind of reactor coolant pump mechanical seal maintenance bearing according to claim 1, it is characterised in that：On described
The identical truncated cone-shaped recess of 16 sizes is evenly distributed on the circular ring structure of support component (2).
3. a kind of reactor coolant pump mechanical seal maintenance bearing according to claim 1 or 2, it is characterised in that：Institute
State bottom plate (4), column (3), upper support component (2), crossbeam (1), limitation bar (10), jack inner sleeve (9), jack housing
(7), handwheel (8) is all made of stainless steel material.
4. a kind of reactor coolant pump mechanical seal maintenance bearing according to claim 1 or 2, it is characterised in that：Institute
It states handwheel (8) and is inserted with handle (5).
5. a kind of reactor coolant pump mechanical seal maintenance bearing according to claim 4, it is characterised in that：The hand
Handle (5) uses stainless steel material.
6. a kind of side carrying out machine sealing assembly dismounting using reactor coolant pump mechanical seal maintenance bearing described in claim 1
Method, it is characterised in that：Include the following steps：
Step S1 adjusts reactor coolant pump mechanical seal maintenance bearing levelness；
Step S2 slings machine using suspender and seals, it is made to be supported in above support component (2)；
Step S3 rotation hand wheels (8) so that jack housing (7) rises so that it is fixed that the key that machine is sealed up enters jack housing (7)
Position slot, completes positioning；
Step S4 starts the disintegration operation of machine sealing assembly.
7. a kind of side carrying out machine sealing assembly installation using reactor coolant pump mechanical seal maintenance bearing described in claim 1
Method, it is characterised in that：Include the following steps：
Step P1 adjusts reactor coolant pump mechanical seal maintenance bearing levelness；
Step P2 slings machine using suspender and seals, and limitation bar (10) is penetrated machine sealing assembly bolt hole, machine sealing assembly is made to be supported in
Above support component (2)；
Step P3 rotation hand wheels (8) so that jack housing (7) declines；
It is in suspended state that step P4, which slings the machine for installing rotating seat envelope inner sleeve to machine envelope interior, and crossbeam (1) is penetrated in machine envelope
It covers in top-portion apertures, and both sides U-lag is screwed in into limitation bar (10)；
Step P5 jacks up crossbeam (1) to limitation bar (10) restraining position using jackscrew；
Step P6 rotation hand wheels (8) so that jack housing (7) rises so that it is fixed that the key that machine is sealed up enters jack housing (7)
Position slot measures and seals the handwheel (8) that stops rotating when inner sleeve top-portion apertures upper and lower gap is designated value, this opportunity at the top of crossbeam (1) with machine
It seals inner sleeve and completes positioning；
Step P7 removes crossbeam (1), starts machine sealing assembly residue installation operation.
8. being torn open using reactor coolant pump mechanical seal maintenance bearing progress machine sealing assembly described according to claim 6 or 7
The method unloaded, it is characterised in that：In step S1 or step P1, reactor coolant pump mechanical seal maintenance is adjusted using level meter
The precision of bearing levelness, level meter is 0.02mm/m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711135256.3A CN108724060B (en) | 2017-11-13 | 2017-11-13 | Mechanical seal maintenance support for reactor coolant pump and application method of mechanical seal maintenance support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711135256.3A CN108724060B (en) | 2017-11-13 | 2017-11-13 | Mechanical seal maintenance support for reactor coolant pump and application method of mechanical seal maintenance support |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108724060A true CN108724060A (en) | 2018-11-02 |
| CN108724060B CN108724060B (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711135256.3A Active CN108724060B (en) | 2017-11-13 | 2017-11-13 | Mechanical seal maintenance support for reactor coolant pump and application method of mechanical seal maintenance support |
Country Status (1)
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|---|---|
| CN (1) | CN108724060B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111112939A (en) * | 2020-01-20 | 2020-05-08 | 三门核电有限公司 | Rotor support locking device for online maintenance of large-scale shielding main pump and operation process |
| CN111112960A (en) * | 2020-01-20 | 2020-05-08 | 三门核电有限公司 | Device and process for replacing locking cup at lower part of large shielding main pump |
| CN111637085A (en) * | 2020-06-08 | 2020-09-08 | 哈尔滨电气动力装备有限公司 | Installation process of nuclear reactor coolant pump shaft sleeve |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111112939A (en) * | 2020-01-20 | 2020-05-08 | 三门核电有限公司 | Rotor support locking device for online maintenance of large-scale shielding main pump and operation process |
| CN111112960A (en) * | 2020-01-20 | 2020-05-08 | 三门核电有限公司 | Device and process for replacing locking cup at lower part of large shielding main pump |
| CN111112939B (en) * | 2020-01-20 | 2021-01-15 | 三门核电有限公司 | Rotor support locking device for online maintenance of large-scale shielding main pump and operation process |
| CN111637085A (en) * | 2020-06-08 | 2020-09-08 | 哈尔滨电气动力装备有限公司 | Installation process of nuclear reactor coolant pump shaft sleeve |
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| Publication number | Publication date |
|---|---|
| CN108724060B (en) | 2023-10-20 |
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