CN114425681A - Tool and process for hot sleeving of mechanical seal static sliding ring of main pump of shaft seal of nuclear power station - Google Patents
Tool and process for hot sleeving of mechanical seal static sliding ring of main pump of shaft seal of nuclear power station Download PDFInfo
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- CN114425681A CN114425681A CN202210014844.6A CN202210014844A CN114425681A CN 114425681 A CN114425681 A CN 114425681A CN 202210014844 A CN202210014844 A CN 202210014844A CN 114425681 A CN114425681 A CN 114425681A
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- heating device
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- outer ring
- lifting
- supporting cylinder
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- 230000003068 static effect Effects 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 76
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 19
- 238000003825 pressing Methods 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
Abstract
The utility model provides a static sliding ring shrink fit instrument of nuclear power station bearing seal main pump mechanical seal and shrink fit technology, by electromagnetic induction heating device switch board (1), elevating gear controller (2), go up tray (3), fixed plate (4), heat insulating board (5), heating device (6), a supporting cylinder (7), linear bearing (8), guiding axle (9), lift cylinder (10), a set of mounting tool is constituteed in clamp plate (11), this specialized tool is vertical structure, wherein electromagnetic induction heating device switch board (1), heating device (6) are electromagnetic induction heating device, be used for carrying out the rapid heating to outer ring (13) of the static sliding ring of mechanical seal, and control heating temperature. The pneumatic lifting device comprises a lifting device controller (2), an upper tray (3), a fixing plate (4), a heat insulation plate (5), a supporting cylinder (7), a linear bearing (8), a guide shaft (9), a lifting cylinder (10) and a pressing plate (11), and the supporting cylinder (7) is pushed by the cylinder to reciprocate up and down, so that the heated outer ring (13) is pushed into an inner ring (12).
Description
The technical field is as follows:
the invention relates to a mechanical seal static sliding ring hot jacket process for a shaft seal main pump of a nuclear power station.
The background art comprises the following steps:
the mechanical seal is a key part sleeve of a reactor coolant pump (a shaft seal main pump for short) of a pressurized water reactor nuclear power station, and the static sliding ring is a core part of the mechanical seal part sleeve. As shown in fig. 2, the stationary slip ring is composed of an inner ring (12) and an outer ring (13), the inner ring (12) and the outer ring (13) are in interference fit, and the interference is (0.6-0.645). At present, the assembly method for the inner ring (12) and the outer ring (13) at home and abroad mainly adopts a heating furnace to heat the outer ring (13), then an operator visually centers the outer ring (13), and manually puts the outer ring (13) into the inner ring (12). At present, in the existing hot jacket process, a heating furnace is used for heating an outer ring (13) to 300 ℃, the outer ring (13) is moved out of the heating furnace and is placed on a platform. The manual shrink-fit method, in which the operator then manually takes the outer ring (13) up using a simple tool and places the inner ring (12) into the outer ring (13) after centering by eye, has the following drawbacks:
1) the heating furnace is adopted to heat the outer ring (13) for a long time, the production efficiency is low, and the outer ring (13) is a thin-wall part, so that the heat dissipation is fast, the outer ring (13) is placed on the platform after being taken out from the outer ring (13), the expansion amount of the outer ring (13) is rapidly reduced, and the hot jacket failure is caused.
2) When the hot jacket is carried out by manual operation, the precision of visual centering is low, the experience of an operator greatly influences the success rate of the hot jacket, clamping stagnation often occurs in the hot jacket process, and the condition that a static sliding ring is scrapped due to the failure of the hot jacket occurs for many times.
The invention content is as follows:
the invention aims to provide a tool and a process for hot sleeving a stationary seal sliding ring of a mechanical seal of a main shaft seal pump of a nuclear power station, which are high in hot sleeving speed and high in precision.
The technical scheme of the invention is as follows:
the utility model provides a nuclear power station bearing seal main pump mechanical seal static slip ring shrink fit instrument, by electromagnetic induction heating device switch board (1), elevating gear controller (2), go up tray (3), fixed plate (4), heat insulating board (5), heating device (6), a supporting cylinder (7), linear bearing (8), guiding axle (9), lift cylinder (10), a set of mounting tool is constituteed in clamp plate (11), this specialized tool is vertical structure, wherein electromagnetic induction heating device switch board (1), heating device (6) are electromagnetic induction heating device, be used for carrying out rapid heating to outer ring (13) of the static slip ring of mechanical seal, and control heating temperature, elevating gear controller (2), go up tray (3), fixed plate (4), heat insulating board (5), a supporting cylinder (7), linear bearing (8), guiding axle (9), lift cylinder (10), Pneumatic elevating gear is constituteed in clamp plate (11), heat insulating board (5), heating device (6), a supporting cylinder (7), linear bearing (8) pass through bolted connection and assemble into a whole, the cylinder piston post of lift cylinder (10) passes through the bolt fastening with a supporting cylinder (7) and is in the same place, supporting cylinder (7) and linear bearing (8) assemble together, utilize lift cylinder (10) to promote heat insulating board (5), heating device (6), a supporting cylinder (7), linear bearing (8) are whole to carry out up-and-down reciprocating motion along guiding axle (9), thereby outer ring (13) after will heating push inner ring (12).
A static sliding ring hot jacket process for mechanical seal of a shaft seal main pump of a nuclear power station comprises the following steps:
1) opening an electromagnetic induction heating device control cabinet (1), starting a main switch of a control circuit, opening a self-switch of a temperature controller within 3 seconds for self-checking, and setting the heating temperature to 300 ℃ after the self-checking is finished;
2) turning on a power switch in a lifting device controller (2), presetting that a lifting device is automatic, and turning on a lifting button;
3) a lifting cylinder (10) in the lifting device automatically lifts along a linear bearing (8) and a guide shaft (9), so that the supporting cylinder (7) and the heating device (6) are pushed to climb up to a spigot of the upper tray together, the lifting device is centered, and the centering is that the central axis of the shaft is on the same plumb line;
4) turning on a descending button in the lifting device controller (2), and moving the supporting cylinder (7) and the heating device (6) downwards to an initial position;
5) the inner ring (12) is arranged on the upper tray (3) and is fixed by the fixing plate (4);
6) the outer ring (13) is put into a tray of the heating device (6) and slightly presses the pressing plate (11);
7) pressing a heating start button in the electromagnetic induction heating device control cabinet (1) to quickly heat the heating device (6);
8) when the temperature display reaches 300 ℃, a lifting cylinder (10) in the lifting device automatically lifts along a linear bearing (8) and a guide shaft (9), so that the supporting cylinder (7), the outer ring (13) and the heating device (6) are pushed to climb up to the position of the inner ring (12), and the outer ring (13) is quickly pushed into the inner ring (12);
9) after the outer ring (13) is cooled to room temperature, the size of the inner hole of the outer ring (13) is shrunk to the original size, so that the outer ring (13) and the inner ring (12) are assembled together in an interference fit mode, namely the static sliding ring, the fixing plate (4) is detached, the step (4) is executed again, the static sliding ring is taken out from the heating device (6), and the whole process step of the hot sleeve is completed.
The invention has the technical effects that:
the hot sleeve tool and the process method have the advantages that:
1) by utilizing electromagnetic induction heating, the heating temperature operation temperature of the outer ring can be quickly raised to 300 ℃ within 60 seconds, and the outer ring (13) can be insulated. After heating, the inner ring (12) and the outer ring (13) are directly and rapidly sleeved on the heating device, so that the heat loss of the workpiece is small, and the expansion amount of the outer ring (13) can be ensured to reach a design value.
2) The central axes of the inner ring (12) and the outer ring (13) are centered by using equipment, and the axis centering precision is high; the uncertainty of manual operation is avoided, the mechanization and automation of the mechanical seal static sliding ring hot jacket process are realized, and the hot jacket quality is stable and reliable.
Description of the drawings:
FIG. 1 Structure of a mechanical seal stationary slip ring
FIG. 2 is a schematic view of a mechanical seal stationary slip ring shrink sleeve
The specific implementation mode is as follows:
as shown in a design figure 1, a tool for hot sleeving of a mechanical sealing static sliding ring of a main pump of a nuclear power station shaft seal comprises an electromagnetic induction heating device control cabinet 1, a lifting device controller 2, an upper tray 3, a fixing plate 4, a heat insulation plate 5, a heating device 6, a supporting cylinder 7, a linear bearing 8, a guide shaft 9, a lifting cylinder 10 and a pressing plate 11, wherein the special tool is of a vertical structure, the electromagnetic induction heating device control cabinet 1 and the heating device 6 are electromagnetic induction heating devices and are used for rapidly heating an outer ring 13 of the mechanical sealing static sliding ring and controlling the heating temperature, the lifting device controller 2, the upper tray 3, the fixing plate 4, the fixing plate 5, the supporting cylinder 7, the linear bearing 8, the guide shaft 9, the lifting cylinder 10 and the pressing plate 11 form a pneumatic lifting device, the heat insulation plate 5, the heating device 6, the supporting cylinder 7 and the linear bearing 8 are connected and assembled into a whole through bolts, a cylinder piston column of the lifting cylinder 10 is fixed with the supporting cylinder 7 through a bolt, the supporting cylinder 7 is assembled with the linear bearing 8, the lifting cylinder 1 is utilized to push the heat insulation plate 5, the heating device 6, the supporting cylinder 7 and the linear bearing 8 to integrally reciprocate up and down along the guide shaft 9, and therefore the heated outer ring 13 is pushed into the inner ring 12.
The method comprises the following steps:
1) opening the electromagnetic induction heating device control cabinet 1, starting a main switch of a control circuit, opening a self-switch of a temperature controller within 3 seconds for self-checking, and setting the heating temperature to 300 ℃ after the self-checking is finished;
2) turning on a power switch in the lifting device controller 2, presetting the lifting device to be automatic, and turning on a lifting button;
3) a lifting cylinder 10 in the lifting device automatically lifts along a linear bearing 8 and a guide shaft 9, so that the supporting cylinder 7 and the heating device 6 are pushed to climb up to a spigot of the upper tray together, the lifting device is centered, and the centering is that the central axis of the shaft is on the same plumb line;
4) turning on a lowering button in the lifting device controller 2, the support cylinder 7 moves down to an initial position together with the heating device 6;
5) the inner ring 12 is mounted on the upper tray 3 and fixed by the fixing plate 4;
6) the outer ring 13 is put into a tray of the heating device 6, and the pressing plate 11 is lightly pressed;
7) pressing a heating start button in the electromagnetic induction heating device control cabinet 1, the heating device 6 starts to heat rapidly;
8) when the temperature display reaches 300 ℃, the lifting cylinder 10 in the lifting device automatically lifts along the linear bearing 8 and the guide shaft 9, so as to push the supporting cylinder 7, the outer ring 13 and the heating device 6 to climb upwards to the position of the inner ring 12, and quickly push the outer ring 13 into the inner ring 12;
9) after the outer ring 13 is cooled to room temperature, the size of the inner hole of the outer ring 13 is shrunk to the original size, so that the outer ring 13 and the inner ring 12 are assembled together through interference fit, namely, the static sliding ring (shown in figure 2), the fixing plate 4 is detached, the step 4 is executed again, the static sliding ring is taken out from the heating device 6, and the whole process step of the hot sleeve is completed.
Claims (2)
1. A static slip ring shrink fit instrument of nuclear power station bearing seal main pump mechanical seal, characterized by: the device is characterized by comprising an electromagnetic induction heating device control cabinet (1), a lifting device controller (2), an upper tray (3), a fixing plate (4), a heat insulation plate (5), a heating device (6), a supporting cylinder (7), a linear bearing (8), a guide shaft (9), a lifting cylinder (10) and a pressing plate (11), wherein the fixing plate (4), the heat insulation plate (5), the heating device (6), the supporting cylinder (7), the linear bearing (8), the guide shaft (9), the lifting cylinder (10) and the pressing plate (11) form a set of mounting tool, the special tool is of a vertical structure, the electromagnetic induction heating device control cabinet (1) and the heating device (6) are electromagnetic induction heating devices and are used for rapidly heating an outer ring (13) of a mechanical sealing static sliding ring and controlling the heating temperature, the lifting device controller (2), the upper tray (3), the fixing plate (4), the fixing plate (5), the supporting cylinder (7), the linear bearing (8), the guide shaft (9), the lifting cylinder (10) and the pressing plate (11) forms a pneumatic lifting device, the heat insulation plate (5), Heating device (6), a supporting cylinder (7), linear bearing (8) pass through bolted connection and assemble into a whole, the cylinder piston post of lift cylinder (10) passes through the bolt fastening with a supporting cylinder (7) and is in the same place, supporting cylinder (7) and linear bearing (8) assemble together, utilize lift cylinder (10) to promote heat insulating board (5), heating device (6), a supporting cylinder (7), linear bearing (8) are whole to carry out up-and-down reciprocating motion along guiding axle (9), thereby push inner ring (12) with outer ring (13) after the heating.
2. A static sliding ring hot jacket process for mechanical seal of a main pump of a shaft seal of a nuclear power station is characterized by comprising the following steps: the method comprises the following steps:
1) opening an electromagnetic induction heating device control cabinet (1), starting a main switch of a control circuit, opening a self-switch of a temperature control instrument for self-checking within 3 seconds, and setting the heating temperature to 300 ℃ after the self-checking is finished;
2) turning on a power switch in a lifting device controller (2), presetting that a lifting device is automatic, and turning on a lifting button;
3) a lifting cylinder (10) in the lifting device automatically lifts along a linear bearing (8) and a guide shaft (9), so that the supporting cylinder (7) and the heating device (6) are pushed to climb up to a spigot of the upper tray together, the lifting device is centered, and the centering is that the central axis of the shaft is on the same plumb line;
4) turning on a descending button in the lifting device controller (2), and moving the supporting cylinder (7) and the heating device (6) downwards to an initial position;
5) the inner ring (12) is arranged on the upper tray (3) and is fixed by the fixing plate (4);
6) the outer ring (13) is put into a tray of the heating device (6) and slightly presses the pressing plate (11);
7) pressing a heating start button in the electromagnetic induction heating device control cabinet (1) to quickly heat the heating device (6);
8) when the temperature display reaches 300 ℃, a lifting cylinder (10) in the lifting device automatically lifts along a linear bearing (8) and a guide shaft (9), so that the supporting cylinder (7), the outer ring (13) and the heating device (6) are pushed to climb up to the position of the inner ring (12), and the outer ring (13) is quickly pushed into the inner ring (12);
9) after the outer ring (13) is cooled to room temperature, the size of the inner hole of the outer ring (13) is shrunk to the original size, so that the outer ring (13) and the inner ring (12) are assembled together in an interference fit mode, namely the static sliding ring, the fixing plate (4) is detached, the step (4) is executed again, the static sliding ring is taken out from the heating device (6), and the whole process step of the hot sleeve is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210014844.6A CN114425681A (en) | 2022-01-07 | 2022-01-07 | Tool and process for hot sleeving of mechanical seal static sliding ring of main pump of shaft seal of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210014844.6A CN114425681A (en) | 2022-01-07 | 2022-01-07 | Tool and process for hot sleeving of mechanical seal static sliding ring of main pump of shaft seal of nuclear power station |
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| Publication Number | Publication Date |
|---|---|
| CN114425681A true CN114425681A (en) | 2022-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210014844.6A Pending CN114425681A (en) | 2022-01-07 | 2022-01-07 | Tool and process for hot sleeving of mechanical seal static sliding ring of main pump of shaft seal of nuclear power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116571987A (en) * | 2023-05-16 | 2023-08-11 | 哈尔滨高维电气装备制造有限公司 | Pressing and inlaying equipment, inlaying system and working method of floating sealing ring |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3399446A (en) * | 1966-02-17 | 1968-09-03 | Cross Co | Oil seal assembling device |
| JP2008049422A (en) * | 2006-08-23 | 2008-03-06 | Shin Caterpillar Mitsubishi Ltd | Method of press-fitting |
| CN105537902A (en) * | 2016-01-22 | 2016-05-04 | 杭州焕杰自动化设备有限公司 | Automatic heat sleeving assembly machine |
| CN206898702U (en) * | 2017-06-23 | 2018-01-19 | 河南明睿达机械制造有限公司 | The installing of aluminum pipe continuously extruding and molding mold hot is standby |
| CN206998188U (en) * | 2017-06-01 | 2018-02-13 | 上海清水日用制品有限公司 | A kind of gland equipment |
| CN108723699A (en) * | 2018-08-23 | 2018-11-02 | 温岭市九洲电机制造有限公司 | A kind of hot jacket positioning tool of stator core and casing |
| CN109128688A (en) * | 2018-08-16 | 2019-01-04 | 广东弘添汽车科技有限公司 | Aluminium alloy rim heating assembly device |
| CN109551170A (en) * | 2018-12-25 | 2019-04-02 | 德恩科电机（太仓）有限公司 | A kind of motor output shaft bushing shrinking device capable of fast |
| US20190275575A1 (en) * | 2018-03-06 | 2019-09-12 | MTU Aero Engines AG | Hydraulic extrusion tool with integrated induction device |
| CN213196402U (en) * | 2020-07-24 | 2021-05-14 | 嘉瑞天(天津)科技发展有限公司 | Automatic positioning heating press-fitting mechanism |
-
2022
- 2022-01-07 CN CN202210014844.6A patent/CN114425681A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3399446A (en) * | 1966-02-17 | 1968-09-03 | Cross Co | Oil seal assembling device |
| JP2008049422A (en) * | 2006-08-23 | 2008-03-06 | Shin Caterpillar Mitsubishi Ltd | Method of press-fitting |
| CN105537902A (en) * | 2016-01-22 | 2016-05-04 | 杭州焕杰自动化设备有限公司 | Automatic heat sleeving assembly machine |
| CN206998188U (en) * | 2017-06-01 | 2018-02-13 | 上海清水日用制品有限公司 | A kind of gland equipment |
| CN206898702U (en) * | 2017-06-23 | 2018-01-19 | 河南明睿达机械制造有限公司 | The installing of aluminum pipe continuously extruding and molding mold hot is standby |
| US20190275575A1 (en) * | 2018-03-06 | 2019-09-12 | MTU Aero Engines AG | Hydraulic extrusion tool with integrated induction device |
| CN109128688A (en) * | 2018-08-16 | 2019-01-04 | 广东弘添汽车科技有限公司 | Aluminium alloy rim heating assembly device |
| CN108723699A (en) * | 2018-08-23 | 2018-11-02 | 温岭市九洲电机制造有限公司 | A kind of hot jacket positioning tool of stator core and casing |
| CN109551170A (en) * | 2018-12-25 | 2019-04-02 | 德恩科电机（太仓）有限公司 | A kind of motor output shaft bushing shrinking device capable of fast |
| CN213196402U (en) * | 2020-07-24 | 2021-05-14 | 嘉瑞天(天津)科技发展有限公司 | Automatic positioning heating press-fitting mechanism |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116571987A (en) * | 2023-05-16 | 2023-08-11 | 哈尔滨高维电气装备制造有限公司 | Pressing and inlaying equipment, inlaying system and working method of floating sealing ring |
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