CN106304437A - Thrust disc heater is used in main pump motor maintenance - Google Patents
Thrust disc heater is used in main pump motor maintenance Download PDFInfo
- Publication number
- CN106304437A CN106304437A CN201510253684.0A CN201510253684A CN106304437A CN 106304437 A CN106304437 A CN 106304437A CN 201510253684 A CN201510253684 A CN 201510253684A CN 106304437 A CN106304437 A CN 106304437A
- Authority
- CN
- China
- Prior art keywords
- heater
- thrust disc
- main pump
- pump motor
- rosette
- 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.)
- Pending
Links
- 238000012423 maintenance Methods 0.000 title claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to nuclear power station main pump fly-wheel motor overhaul of the equipments technical field, be specifically related to a kind of main pump motor maintenance thrust disc heater, it is therefore an objective to solve when dismantling thrust disc on motor shaft, the problem that equipment can be caused damage by direct dismounting.It is characterized in that, it includes rosette and heater；Rosette is arranged on the outer surface of heater, is connected with heater by electric wire；Heater generally cylindrical, center has through hole, and sidewall is hollow structure；Heater internal diameter is more than or equal to the external diameter of thrust disc；Heating tape is arranged on inside the hollow structure of heater.In the disintegration demolishing process first of Qinshan two factory owner's pump motor, use this covering device that thrust disc is heated so that it is thermal expansion amount has reached the requirement removed and install, be successfully made dismounting and return dress work, it is to avoid the damage of equipment.
Description
Technical field
The invention belongs to nuclear power station main pump fly-wheel motor overhaul of the equipments technical field, be specifically related to a kind of main pump electricity
Machine overhauling thrust disc heater.
Background technology
Often there is a need to the place heating part of appliance in overhaul of the equipments, wherein sensing and gas welding add
The application of heat is the most extensive.During the disintegration of main pump motor, owing to motor flywheels and thrust disc are with electric
It is interference fit between arbor, is required for heating when removing and install.Wherein thrust disc is nuclear power main pump
The vitals of motor, typical thrust disc structure is as shown in Figure 1.During the disassembling of main pump motor,
Owing to being interference fit between thrust disc and the motor shaft of motor, equipment can be caused damage by direct dismounting.
Summary of the invention
Present invention aim to address that, when dismantling thrust disc on motor shaft, equipment can be caused by direct dismounting
The problem of damage, it is provided that a kind of the thrust disc of main pump motor can be heated so that it is after thermal expansion in
The magnitude of interference of axle reduces or becomes matched in clearance, and the main pump motor maintenance thrust disc facilitating thrust disc to remove adds
Hot device.
The present invention is achieved in that
A kind of main pump motor maintenance uses thrust disc heater, including rosette and heater；Rosette is arranged on
On the outer surface of heater, it is connected with heater by electric wire；Heater generally cylindrical, center is opened
Having through hole, sidewall is hollow structure；Heater internal diameter is more than or equal to the external diameter of thrust disc；Heating tape is arranged on
Inside the hollow structure of heater.
Thrust disc heater as above uses two halves structure, is bolted to connection, its inwall with push away
Power dish outer wall matched in clearance.
Heating tape as above uses casting aluminium material to make.
The invention has the beneficial effects as follows:
The present invention includes rosette and heater.In the disintegration demolishing process first of Qinshan two factory owner's pump motor,
Use this covering device that thrust disc is heated so that it is thermal expansion amount has reached the requirement removed and install, and becomes
Merit has carried out removing and return dress work, it is to avoid the damage of equipment.
Accompanying drawing explanation
Fig. 1 is existing thrust disc structure schematic diagram；
Fig. 2 is the structural representation of the main pump motor maintenance thrust disc heater of the present invention；
Fig. 3 is the heating tape scattergram of the heat-conducting layer of the main pump motor maintenance thrust disc heater of the present invention.
Wherein: 1. motor shaft, 2. thrust disc, 3. rosette, 4. heater, 5. heating tape.
Detailed description of the invention
The present invention is described further with embodiment below in conjunction with the accompanying drawings.
As shown in Figures 2 and 3, a kind of main pump motor maintenance uses thrust disc heater, including rosette 3 He
Heater 4.Rosette 3 is arranged on the outer surface of heater 4, is connected with heater 4 by electric wire.Add
Hot device 4 generally cylindrical, center has through hole, and sidewall is hollow structure.Heater 4 internal diameter is more than
External diameter equal to thrust disc 2.Heating tape 5 is arranged on inside the hollow structure of heater 4.
The main pump motor maintenance thrust disc heater of the present invention uses two halves structure, is bolted to connection,
Convenient installation and dismounting, its internal diameter coordinates with thrust disc 2 crest clearance, is conducive to heat transfer but stress does not occur.
In the present embodiment, heating tape 5 uses casting aluminium material to make.
When needing to remove thrust disc 2, thrust disc heater is installed the outer ring to thrust disc 2, by rosette 3
It is connected with power supply.After being heated to preset temperature, by thrust disc 2 and thrust disc heater integral lifting.
When needing back to fill thrust disc 2, thrust disc 2 is placed on platform, installed thrust dish warmer, will
Rosette 3 is connected with power supply.After being heated to preset temperature, measure the swell increment of thrust disc 2 internal diameter, full
Foot coordinate require after entirety sling thrust disc 2 and thrust disc heater, be arranged on motor shaft 1.
The present invention includes rosette 3 and heater 4.Disintegration demolishing process first at Qinshan two factory owner's pump motor
In, use this covering device that thrust disc is heated so that it is thermal expansion amount has reached the requirement removed and install,
It is successfully made dismounting and returns dress work, it is to avoid the damage of equipment.
Claims (3)
1. thrust disc heater is used in main pump motor maintenance, it is characterised in that: it include rosette (3) and
Heater (4)；Rosette (3) is arranged on the outer surface of heater (4), by electric wire and heater
(4) connect；Heater (4) generally cylindrical, center has through hole, and sidewall is hollow structure；
Heater (4) internal diameter is more than or equal to the external diameter of thrust disc (2)；Heating tape (5) is arranged on heater (4)
Hollow structure inside.
Main pump motor maintenance thrust disc heater the most according to claim 1, it is characterised in that: institute
The thrust disc heater stated uses two halves structure, is bolted to connection, and its inwall is with thrust disc (2) outward
Wall matched in clearance.
Main pump motor maintenance thrust disc heater the most according to claim 1, it is characterised in that: institute
The heating tape (5) stated uses casting aluminium material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510253684.0A CN106304437A (en) | 2015-05-18 | 2015-05-18 | Thrust disc heater is used in main pump motor maintenance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510253684.0A CN106304437A (en) | 2015-05-18 | 2015-05-18 | Thrust disc heater is used in main pump motor maintenance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106304437A true CN106304437A (en) | 2017-01-04 |
Family
ID=57633039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510253684.0A Pending CN106304437A (en) | 2015-05-18 | 2015-05-18 | Thrust disc heater is used in main pump motor maintenance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106304437A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203039934U (en) * | 2012-10-31 | 2013-07-03 | 中国广东核电集团有限公司 | Main pump coupling heating device for nuclear power plants |
| CN204697318U (en) * | 2015-05-18 | 2015-10-07 | 中核核电运行管理有限公司 | Thrust collar heater is used in main pump motor maintenance |
-
2015
- 2015-05-18 CN CN201510253684.0A patent/CN106304437A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203039934U (en) * | 2012-10-31 | 2013-07-03 | 中国广东核电集团有限公司 | Main pump coupling heating device for nuclear power plants |
| CN204697318U (en) * | 2015-05-18 | 2015-10-07 | 中核核电运行管理有限公司 | Thrust collar heater is used in main pump motor maintenance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170104 |
|
| RJ01 | Rejection of invention patent application after publication |