CN103465215B - Tool for dismounting and mounting main shaft seal of main pump of 300MW nuclear power station - Google Patents
Tool for dismounting and mounting main shaft seal of main pump of 300MW nuclear power station Download PDFInfo
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- CN103465215B CN103465215B CN201310449339.5A CN201310449339A CN103465215B CN 103465215 B CN103465215 B CN 103465215B CN 201310449339 A CN201310449339 A CN 201310449339A CN 103465215 B CN103465215 B CN 103465215B
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- main shaft
- dismounting
- star
- disc
- nuclear power
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Abstract
The invention relates to a tool for dismounting and mounting a main shaft seal of a main pump of a 300MW nuclear power station. When the main shaft seal is mounted and dismounted, a main pump motor is not required to be dismounted, and a gap formed after an intermediate shaft is dismounted is used for dismounting and mounting the mechanical seal. The whole process is low in time consumption and human resource consumption, accurate in positioning and easy to operate. The whole device comprises tools such as a hand wheel, a main shaft, star-like plates, trolleys and a guide rail. The tool can be used for dismounting and mounting the main shaft seal of the main pump of the 300MW nuclear power station and a device with a similar structure.
Description
Technical field:
The present invention relates to dismounting and the erecting tools of the sealing of 300MW main pump main shaft of nuclear power station.
Background technology:
The Construction of Unit of current domestic nuclear power is in the ascendant, and as the core main pump of nuclear power station heart, the stability of its critical component---main shaft seal just seems particularly important.Main shaft seal average every two years just needs changes maintenance once.Ensure the continuous operation of nuclear power station, just need the dismounting and the installation that complete main shaft seal fast and accurately.Domestic at present have multiple installation and removal mode, but all lack for main shaft seal installation and removal and custom-designed instrument; When practical operation, all need to remove core main pump motor, could realize the installation and removal to main shaft seal, whole operating process very complicated, workload is large, expends time in and is difficult to precise manipulation; In addition, parts have the danger of damage.
Summary of the invention: the object of this invention is to provide a set of can being used for and dismantle and install required specific purpose tool fast and accurately for 300MW main pump main shaft of nuclear power station has sealed.Technical scheme of the present invention is: a kind of dismounting of 300MW main pump main shaft of nuclear power station sealing and erecting tools, described dismounting and erecting tools are a vertical structure, the top of pump shaft loads main shaft handwheel (1), utilize main shaft (5) by handwheel (1), fixed head (2), first star-disc (3) and the second star-disc (4) link together, screw rod (6) and nut (7) are fixed in the first star-disc (3), first fixed disk (8) and the second fixed disk (9) are connected in the second star-disc (4) by screw (14), the pump housing is provided with instrument guide rail (12), the first dolly (10) and the second dolly (11) are arranged on guide rail, complete machine bottom connection locator (13) and formed a whole set of sealing installation and removal instrument.
The present invention is the 300MW nuclear power station main pump based on designing with jackshaft, after jackshaft is removed, the space in the middle of utilizing, utilizes the design of main shaft (5) and handwheel (1), form the device of a stable elevation, like this, without the need to removing main pump motor, the installation and removal of main shaft seal just can be completed, words so, just can greatly save man power and material, shorten installation and removal process, save time and cost; Utilize custom-designed alignment pin in instrument, the accurate location of installment work can be realized; Utilize rotary wheel device, can manpower be reduced, realize conveniently installing rapidly; Utilize design and the conversion of spindle thread design and screw rod, can ensure to extend installation length in limited space, and ensure that whole installation and removal process is stablized gently, the fragile part such as moving sealing ring and stationary ring is played a very good protection.Utilize this cover specific purpose tool to complete the installation and removal of main pump main shaft sealing, the convenience of main shaft seal installation and removal process can be ensured, fast, accurate and safety.
Distinguishing feature of the present invention is: the present invention designs based on 300MW nuclear power station main pump, but the parts dismounting being designed with the similar devices of jackshaft all can use for reference use, and practicality is very strong; The present invention, when removing main shaft seal, without the need to removing main pump motor, can ensure that parts that are to be removed or that install realize dismounting fast and accurately or install, whole process short time consumption is short, and each step controllability is strong, and the space of needs is little, the manpower needed is few, simple to operate; Tool making involved in the present invention is convenient, and the machining accuracy of requirement is relatively low, is conducive to control funds, cost-saving.
Accompanying drawing illustrates:
Fig. 1 is dismounting and the scheme of installation of main shaft seal.
Detailed description of the invention:
As shown in Figure 1, a kind of dismounting of 300MW main pump main shaft of nuclear power station sealing and erecting tools, described dismounting and erecting tools are a vertical structure, the top of pump shaft loads main shaft handwheel 1, main shaft 5 is utilized handwheel 1, fixed head 2, first star-disc 3 and the second star-disc 4 to be linked together, screw rod 6 and nut 7 are fixed in the first star-disc 3, the first fixed disk 8 and the second fixed disk 9 are connected in the second star-disc 4 by screw 14; The pump housing is provided with instrument guide rail 12, first dolly 10 and the second dolly 11 is arranged on guide rail, complete machine bottom connection locator 13 also forms a whole set of sealing installation and removal instrument.
Utilize screw to be connected on black box by the first fixed disk 8 and the second fixed disk 9 as shown in Figure 1, make black box be linked to be an entirety; Together with handwheel 1, fixed head 2 are assembled into main shaft 5, the first star-disc 3 and the second star-disc 4 are installed on main shaft, utilize screw 14 to be connected to by black box in the second star-disc 4, and rise to suitable height.At pump housing appropriate location erecting tools guide rail 12, and be screwed, the first dolly 10 and the second dolly 11 are placed on guide rail.Utilize crane to be placed on dolly by assembling all-in-one-piece black box and instrument, promote dolly by black box and tool carrier to assigned position, main shaft 5 is fixed on pump shaft by turn fixed head 2.Utilize the second dolly 11 and screw 14 that black box is adjusted to level, rotate handwheel 1 and rise black box, the first dolly 10 and the second dolly 11 are released.Rotating handwheel 1 makes the second star-disc 4 decline on main shaft, and then is fallen along pump shaft by black box.Arrive the lower of main shaft 5 to prescribe a time limit, the second star-disc 4 and screw 14 is replaced with the first star-disc 3, screw rod 6 and nut 7, being rotated further handwheel 1 makes black box continue to fall to close to assigned position, positioner 13 is utilized to adjust the circumferencial direction of black box, then black box is fallen to assigned position, the installment work of black box can be completed.
Reverse operating appeal step, can complete the dismantlement work of black box.
The each component function of this device and effect are:
Handwheel 1 utilizes internal correlation to construct, and drives main shaft 5 to rotate, and then makes black box do to rise or decline on main shaft 5.
Fixed head 2 utilizes internal structure, and the entire length of adjustment kit, is fixed to main shaft 5 on pump shaft.
First star-disc 3 is threaded connection, and can realize the rising on main shaft 5 and decline, and then promotes or whereabouts black box.
Second star-disc 4 is threaded connection, and can realize the rising on main shaft 5 and decline, and then promotes or whereabouts black box.
The support component that main shaft 5 is main, axle body is processed with screw thread, in order to control rising and the decline of black box.
Screw rod 6 is in order to connect the first star-disc 3 and black box.
Nut 7 is in order to connect the first star-disc 3 and screw rod 6.
Black box links into an integrated entity by the screw fit of the first fixed disk 8 and the second fixed disk 9 and right quantity, so that dismounting or installation.
Black box links into an integrated entity by the screw fit of the second fixed disk 9 and the first fixed disk 8 and right quantity, so that dismounting or installation.
First dolly 10 regulates the bolt be mounted thereon, and the riding position of black box is adjusted to level.
Black box is pushed out to installation region by the second dolly 11 on instrument guide rail 12.
Instrument guide rail 12 moves, in order to shipping seal assembly thereon for the first dolly 10, second dolly 11.
When positioner 13 black box is installed, limit the radial position of black box.
Screw 14 is in order to connect the second star-disc 4 and black box.
Claims (1)
1. the dismounting of 300MW main pump main shaft of nuclear power station sealing and erecting tools, it is characterized in that: described dismounting and erecting tools are a vertical structure, the top of pump shaft loads main shaft handwheel (1), utilize the threaded main shaft of processing (5) by handwheel (1), fixed head (2), first star-disc (3) and the second star-disc (4) link together, screw rod (6) and nut (7) are fixed in the first star-disc (3), first fixed disk (8) and the second fixed disk (9) are connected in the second star-disc (4) by screw (14), the pump housing is provided with instrument guide rail (12), the first dolly (10) and the second dolly (11) are arranged on guide rail, complete machine bottom connection locator (13) and formed a whole set of sealing installation and removal instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310449339.5A CN103465215B (en) | 2013-09-27 | 2013-09-27 | Tool for dismounting and mounting main shaft seal of main pump of 300MW nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310449339.5A CN103465215B (en) | 2013-09-27 | 2013-09-27 | Tool for dismounting and mounting main shaft seal of main pump of 300MW nuclear power station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103465215A CN103465215A (en) | 2013-12-25 |
| CN103465215B true CN103465215B (en) | 2015-01-28 |
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ID=49790374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310449339.5A Active CN103465215B (en) | 2013-09-27 | 2013-09-27 | Tool for dismounting and mounting main shaft seal of main pump of 300MW nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103465215B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106994662B (en) * | 2017-04-17 | 2018-10-30 | 哈尔滨电气动力装备有限公司 | The installation and removal specific purpose tool of 1000MW nuclear power station main pump oil seal components |
| CN111977500B (en) * | 2020-07-28 | 2022-03-25 | 中广核核电运营有限公司 | Dismounting hanger device and dismounting method for nuclear power station main pump seal static ring assembly |
| CN113400246B (en) * | 2021-07-14 | 2022-10-11 | 哈尔滨电气动力装备有限公司 | Installation and disassembly process of lower guide bearing fixing ring of main shaft seal pump of nuclear power station |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU412014A1 (en) * | 1971-04-05 | 1974-01-25 | ||
| CN2537860Y (en) * | 2002-04-17 | 2003-02-26 | 有益安医疗科技股份有限公司 | Automatic assembling machine for high speed oil less micro seal ring |
| CN201258816Y (en) * | 2008-08-15 | 2009-06-17 | 哈尔滨电机厂有限责任公司 | Principal axis sealing device for end-face water pressure type hydroturbine |
| DE102010017403A1 (en) * | 2010-06-16 | 2011-12-22 | Ith Gmbh & Co. Kg | Screw tensioning device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201317459A (en) * | 2011-10-26 | 2013-05-01 | Assoma Inc | Permanent magnet canned pump structure improvement |
-
2013
- 2013-09-27 CN CN201310449339.5A patent/CN103465215B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU412014A1 (en) * | 1971-04-05 | 1974-01-25 | ||
| CN2537860Y (en) * | 2002-04-17 | 2003-02-26 | 有益安医疗科技股份有限公司 | Automatic assembling machine for high speed oil less micro seal ring |
| CN201258816Y (en) * | 2008-08-15 | 2009-06-17 | 哈尔滨电机厂有限责任公司 | Principal axis sealing device for end-face water pressure type hydroturbine |
| DE102010017403A1 (en) * | 2010-06-16 | 2011-12-22 | Ith Gmbh & Co. Kg | Screw tensioning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103465215A (en) | 2013-12-25 |
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