CN109378943A - A kind of motor bearings temperature anomaly processing method of nuclear reactor main pump - Google Patents
A kind of motor bearings temperature anomaly processing method of nuclear reactor main pump Download PDFInfo
- Publication number
- CN109378943A CN109378943A CN201811073347.3A CN201811073347A CN109378943A CN 109378943 A CN109378943 A CN 109378943A CN 201811073347 A CN201811073347 A CN 201811073347A CN 109378943 A CN109378943 A CN 109378943A
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- temperature
- motor
- motor bearings
- probe
- processing method
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Classifications
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/18—Emergency cooling arrangements; Removing shut-down heat
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C15/00—Cooling arrangements within the pressure vessel containing the core; Selection of specific coolants
- G21C15/18—Emergency cooling arrangements; Removing shut-down heat
- G21C15/182—Emergency cooling arrangements; Removing shut-down heat comprising powered means, e.g. pumps
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
- G21C17/112—Measuring temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The present invention relates to nuclear power plant reactor main pump technical fields, are provided in particular in a kind of motor bearings temperature anomaly processing method of nuclear reactor main pump, comprising the following steps: the alarm temperature of S1, default motor bearings, alarm temperature are 72 DEG C~80 DEG C；S2, the actual temperature for collecting motor bearings, the actual temperature of motor bearings is monitored by the temperature probe on several thrust pads being mounted on motor bearings；S3, analytical judgment compare actual temperature and alarm temperature, and when actual temperature is greater than alarm temperature, motor is replaced after stopping working；When actual temperature is less than alarm temperature, judged according to the temperature fluctuation of actual temperature or temperature deviation, selection of Motor is repaired or is replaced.It is compared by default alarm temperature with actual temperature, provides accurate judgment criteria for the processing to motor bearings temperature anomaly, saved manpower and maintenance cost, improve the safety of nuclear reactor main pump safe operation.
Description
Technical field
The present invention relates to nuclear power plant reactor main pump technical fields, are provided in particular in a kind of motor shaft of nuclear reactor main pump
Hold temperature anomaly processing method.
Background technique
Certain domestic nuclear power plant's main reactor pump is 100 type main pumps, and 100 type nuclear reactor main pump motors are public using France JSPM
Certain model motor of department and ADJV company of the country (co-partnership company of JSPM and Dongfang Electric) production.100 type nuclear reactor main pumps
Motor is vertical squirrel cage type, single speed triphase induction type motor, voltage 6.6kV, rated power 6500kW, rated speed
1485rpm。
The motor top of 100 type nuclear reactor main pumps is equipped with a combined bidirectional Charles Kingsbury type thrust bearing and two
Transverse bearing.Transverse bearing is placed in thrust bearing upper and lower, is made of babbit is hung on carbon steel.Thrust bearing is only
The upper and lower faces of push-rotating disk respectively have on 8 blocks of carbon steels hang babbit made of thrust bearing shell, push-rotating disk thrust loading equably
It is assigned on each thrust bearing shell.With the rotation of motor shaft and thrust turntable, the power of oil liquid is acted on thrust bearing shell, makes its summary
Low dip, and one layer of thin oil film is established between bearing shell and balance pad, contact bearing shell not with balance pad.
In reality, in use, the temperature of motor bearings will appear fluctuation and deviation to 100 type nuclear reactor main pumps,
The temperature of motor bearings is that thrust pad is mounted on using temperature probe (thrust bearing shell, guide tile are referred to as thrust pad)
On be monitored.However when temperature probe monitors the temperature fluctuation or too big deviation of motor bearings, it be easy to cause 100 type cores
The damage or damage of reactor coolant pump motor, it is therefore desirable to often 100 type nuclear reactor cooling pumps are repaired or replaced,
And the selection ordinary circumstance repaired or replaced all is to be handled according to artificial experience, and artificially carry out handling to exist by rule of thumb sentencing
Break and make mistakes and handle situation not in place, while can also lead to manpower because of error in judgement, the excessive waste of financial resources causes 100
The maintenance of type nuclear reaction main pump or replacement cost are excessively high.
Summary of the invention
The purpose of the present invention is to provide a kind of motor bearings temperature anomaly processing methods of nuclear reactor main pump, it is intended to solve
When certainly 100 type nuclear reactor main pump motor bearings break down because of temperature in the prior art, the excessively high skill of abnormality processing cost
Art problem.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of motor bearings temperature of nuclear reactor main pump
Abnormality eliminating method, including following processing step:
The alarm temperature of S1, default motor bearings, the alarm temperature are 72 DEG C~80 DEG C；
S2, the actual temperature for collecting motor bearings, by several several thrust pads being mounted on motor bearings
The actual temperature of temperature probe monitoring motor bearings；
S3, analytical judgment compare actual temperature and alarm temperature, when actual temperature is greater than alarm temperature, make electricity
Machine is replaced after stopping working；It is inclined according to the temperature fluctuation of actual temperature or temperature when actual temperature is less than alarm temperature
Difference is judged, the selection of Motor is repaired or replaced the motor；
The maximum temperature value and minimum temperature for the motor bearings that the temperature fluctuation is monitored by the same temperature probe
The difference of value；
The temperature deviation is the temperature difference for the motor bearings that two temperature probes of same time point monitor respectively.
Further: in step s3, carry out judging processing according to the temperature fluctuation the following steps are included:
When temperature fluctuation≤4 DEG C, motor is operated normally；
Or, sentencing when the temperature fluctuation is greater than 4 DEG C and when less than 8 DEG C to the maximum temperature point of the temperature fluctuation
It is disconnected, if when maximum temperature point≤68 DEG C, motor is operated normally, if 68 DEG C of > of maximum temperature point, motor carries out more after stopping working
It changes；
Or, motor is replaced after stopping working when temperature fluctuation >=8 DEG C.
Further: in step s3, carry out judging processing according to the temperature deviation the following steps are included:
When temperature deviation≤10 DEG C, motor is operated normally；
Or, judging the maximum temperature point of temperature probe, when temperature deviation is greater than 10 DEG C and when less than 15 DEG C if most
When high-temperature point≤68 DEG C, motor is operated normally, if 68 DEG C of > of maximum temperature point, motor is replaced after stopping working；
Or, motor is replaced after stopping working when temperature deviation >=15 DEG C.
Further: several temperature probes are arranged at intervals on several thrust pads.
Further: the temperature probe is thermal resistance type temperature probe.
Further: the temperature probe is K-type thermojunction type temperature probe.
Further: the mounting hole aperture on the thrust pad for installing temperature probe is 8mm-10mm.
Further: the mounting hole aperture is 10mm.
Further: the alarm temperature is 72 DEG C.
Further: the temperature probe is fixed on the center of the mounting hole by bushing.
Further: before several temperature probes are mounted on the thrust pad, each thermometric being visited
Head carries out temperature monitoring verification, and the two of them verification the smallest temperature probe of temperature difference is matched to be used to monitor institute
State temperature deviation；Two temperature probes are adjacent to be mounted on corresponding thrust pad.
Further: before several temperature probes are mounted on the thrust pad, each thermometric being visited
Head carries out temperature monitoring verification, and the two of them verification the smallest temperature probe of temperature difference is matched to be used to monitor institute
State temperature deviation；Two temperature probes are mounted on corresponding thrust pad by symmetry axis of the axis of motor bearings relatively
On.
A kind of beneficial effects of the present invention: motor bearings temperature anomaly processing side of nuclear reactor main pump provided by the invention
Method, by preset motor bearings alarm temperature, and according to temperature probe monitor motor bearings actual temperature and alarm temperature
Degree compares, and provides accurate judgment criteria for the processing to motor bearings temperature anomaly, compared with the existing technology in
Processing is carried out according to artificial experience to compare, and has saved the investment of excessive manpower and is excessively repaired nuclear reactor main pump motor and increased
Maintenance cost, and improve to nuclear reactor main pump safe operation risk control ability.
Detailed description of the invention
It to describe the technical solutions in the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only of the invention some
Embodiment for those of ordinary skill in the art without any creative labor, can also be according to these
Attached drawing obtains other attached drawings.
Fig. 1 is the flow diagram of motor bearings temperature anomaly processing method provided in an embodiment of the present invention；
Fig. 2 is the processing flow schematic diagram of temperature fluctuation in the embodiment of the present invention；
Fig. 3 is the processing flow schematic diagram of temperature deviation in the embodiment of the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " length ", " width ", "upper", "lower", "front", "rear",
The orientation or positional relationship of the instructions such as "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside" is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In embodiments of the present invention, temperature fluctuation refers to: the highest for the motor bearings that the same temperature probe is monitored
The difference of temperature value and lowest temperature angle value, for example, the maximum temperature value that temperature probe monitors is 50 DEG C, lowest temperature angle value is 43
DEG C, i.e. temperature fluctuation is equal to 50 DEG C -43 DEG C=7 DEG C；Temperature deviation refers to: same time point, and two temperature probes monitor respectively
The temperature difference of the motor bearings arrived, i.e., the temperature difference monitored between different temperature probes, for example, at same time point,
The temperature that a temperature probe monitors in two temperature probes of pairing is 50 DEG C, the temperature that another temperature probe monitors
It is 43 DEG C, i.e., temperature deviation is equal to 50 DEG C -43 DEG C=7 DEG C.
It please refers to shown in Fig. 1-3, now to a kind of motor bearings temperature of nuclear reactor cooling pump provided in an embodiment of the present invention
Degree abnormality eliminating method is described in detail.The motor bearings temperature anomaly processing method includes following processing step:
The alarm temperature of S1, default motor bearings, the alarm temperature are 72 DEG C~80 DEG C；
S2, the actual temperature for collecting motor bearings, by several several thrust pads being mounted on motor bearings
The actual temperature of temperature probe monitoring motor bearings；
S3, analytical judgment compare actual temperature and alarm temperature, when actual temperature is greater than alarm temperature, make electricity
Machine is replaced after stopping working；It is inclined according to the temperature fluctuation of actual temperature or temperature when actual temperature is less than alarm temperature
Difference is judged, the selection of Motor is repaired or replaced the motor；
The maximum temperature value and minimum temperature for the motor bearings that the temperature fluctuation is monitored by the same temperature probe
The difference of value；
The temperature deviation is the temperature difference for the motor bearings that two temperature probes of same time point monitor respectively.
Wherein, it is used to guarantee the normal operation of motor set on alarm temperature；The practical temperature of temperature probe monitoring motor bearings
Degree, convenient for getting information about the temperature conditions of motor bearings, so that staff timely makes corresponding processing mode.
The motor bearings temperature anomaly processing method of a kind of nuclear reactor main pump provided by the invention, by presetting motor shaft
The alarm temperature held, and monitor that the actual temperature of motor bearings is compared with alarm temperature according to temperature probe, for pair
The processing of motor bearings temperature anomaly provides accurate judgment criteria, compared with the existing technology according to artificial experience at
Reason is compared, and has been saved the investment of excessive manpower and has excessively been repaired nuclear reactor main pump motor and increased maintenance cost, and has improved
To the risk control ability of nuclear reactor main pump safe operation.
Specifically, in the present embodiment, nuclear reactor main pump is equipped with warning system, and warning system is electrically connected with temperature probe
It connects, in the present embodiment, alarm temperature is set as 72 DEG C, in this way when temperature probe monitors that the actual temperature of motor bearings is greater than
At 72 DEG C, so that the actual temperature when motor bearings in DEG C this raised period, carries out different from 72 DEG C to 80 to staff
Often processing provides the reaction time, while warning system be electrically connected with temperature probe sounds an alarm, prompting staff as early as possible into
Row processing.
Specifically, in the present embodiment, in step s3, carrying out judgement processing according to the temperature fluctuation includes following step
It is rapid:
When temperature fluctuation≤4 DEG C, motor is operated normally；
Or, sentencing when the temperature fluctuation is greater than 4 DEG C and when less than 8 DEG C to the maximum temperature point of the temperature fluctuation
It is disconnected, if when maximum temperature point≤68 DEG C, motor is operated normally, if 68 DEG C of > of maximum temperature point, motor carries out more after stopping working
It changes；
Or, motor is replaced after stopping working when temperature fluctuation >=8 DEG C.
Wherein, to when the maximum temperature of temperature fluctuation point≤68 DEG C, monitoring is reinforced to the operation of motor, so as to true in time
The operation conditions for recognizing motor, when discovery temperature fluctuation is oriented be higher than 68 DEG C of variation tendencies when, should be handled, effectively be avoided in time
The unnecessary damage of motor bearings.After motor stops working, temperature probe process is reinstalled, then when the normal work of motor
After work, continue to confirm whether temperature fluctuation is normal, so that the accuracy of temperature probe measurement temperature is effectively ensured；To reduce not
Necessary maintenance cost.
Specifically, in the present embodiment, in step s3, carrying out judgement processing according to the temperature deviation includes following step
It is rapid:
When temperature deviation≤10 DEG C, motor is operated normally；
Or, judging the maximum temperature point of temperature probe, when temperature deviation is greater than 10 DEG C and when less than 15 DEG C if most
When high-temperature point≤68 DEG C, motor is operated normally, if 68 DEG C of > of maximum temperature point, motor is replaced after stopping working；
Or, motor is replaced after stopping working when temperature deviation >=15 DEG C.
Wherein, when maximum temperature point≤68 DEG C that temperature probe is monitored, monitoring is reinforced to the operation of motor, so as to and
When confirm motor operation conditions, as when temperature change is oriented is higher than 68 DEG C of variation tendency, staff is handled in time,
In order to avoid there is unnecessary damage in motor bearings.
Specifically, in the present embodiment, several temperature probes are arranged at intervals on several thrust pads, adjacent temperature probe
Between the quantity of thrust bearing shoe valve that is spaced selected according to actual needs.For example, motor bearings is equipped with eight pieces of upper guide tile, phase
One piece of guide tile is spaced between two adjacent temperature probes；Thrust shoe and lower thrust shoe are provided with eight pieces on motor bearings, adjacent
Two thermometric pullovers be one group, the two pieces of upper thrust shoes in interval or lower thrust shoes between two groups of temperature probes；Motor bearings is equipped with
Eight pieces of lower guide tile, the adjacent symmetrical 180 degree of two temperature probes are separately positioned on two lower guide tiles.
Specifically, before several temperature probes are mounted on corresponding thrust pad, to each temperature probe into
Trip temperature monitoring verification matches the two of them verification the smallest temperature probe of temperature difference to be used to monitor motor bearings
Temperature deviation；Two temperature probes of the pairing are adjacent to be mounted on corresponding thrust pad；In other embodiments, this two
The temperature probe of a pairing is mounted on corresponding thrust pad relatively using the axis of motor bearings as symmetry axis.
Wherein temperature monitoring verification refers to that each temperature probe is monitored same temperature, and verification temperature difference minimum refers to
The temperature of two temperature probes monitoring is minimum closest to actual temperature difference, such as: actual temperature to be tested is 40 DEG C, wherein the
The verification temperature of one temperature probe is 40.3 DEG C, and the verification temperature of second temperature probe is 40.4 DEG C, and third thermometric is visited
The verification temperature of head is 40.2 DEG C, and the verification temperature of the 4th temperature probe is 40.5 DEG C, at this point, first temperature probe and the
The verification temperature difference of three temperature probes is minimum, therefore first temperature probe is matched with third temperature probe to monitor
The temperature deviation of motor bearings.
Wherein, the mounting hole aperture on thrust pad for installing temperature probe is 8mm-10mm, it is preferred that mounting hole hole
Diameter is 10mm, and when mounting hole aperture is 10mm, temperature probe can be mounted on the center of mounting hole by way of increasing bushing
The temperature deviation that temperature probe is monitored is effectively reduced so that temperature probe to be mounted on to the middle position of thrust pad in position
Size, guarantee temperature probe monitoring temperature accuracy.
Specifically, in the present embodiment, temperature probe uses K-type thermojunction type temperature probe, and K-type thermojunction type thermometric is visited
Head has the linearity good, and thermo-electromotive force is larger, high sensitivity, and stability and uniformity are preferable, and antioxygenic property is strong, cheap
The advantages that, so as to which the accuracy of temperature probe monitoring motor bearings temperature is effectively ensured.
In other embodiments, temperature probe uses thermal resistance type temperature probe, and electric heating resistive temperature probe has performance
Stabilization, using flexible, high reliability, therefore the accuracy of temperature probe monitoring motor bearings temperature can be effectively ensured,
Specifically, the thermal resistance that thermal resistance type temperature probe uses is copper thermistor.
A kind of motor bearings temperature anomaly processing method of nuclear reactor main pump provided in an embodiment of the present invention, can also use
In examine motor bearings lifting force tile fragment temperature probe mounting process, only when temperature fluctuation in the normal range (0 DEG C~
4 DEG C) when, it could illustrate that temperature probe is accurately installed in place, the temperature of such temperature probe monitoring just can be accurate；Work as temperature fluctuation
When within the scope of 4 DEG C~8 DEG C, illustrate installing there are certain deviation for temperature probe, the temperature that temperature probe monitors at this time
The temperature requirement that may be worked normally beyond motor bearings, therefore, it is necessary to reinforce monitoring, after motor stops working, reply
Temperature probe is reinstalled, and when temperature fluctuation is greater than 8 DEG C, is illustrated that motor damages, should be stopped at this time in motor
After work, motor is replaced.
A kind of motor bearings temperature anomaly processing method of nuclear reactor main pump provided in an embodiment of the present invention, can also use
Carry out the design to motor and reference is provided, is especially found in motor bearings temperature anomaly treatment process, when using thermal resistance type
When temperature probe measures motor bearings temperature, the temperature fluctuation of motor bearings or deviation are smaller, in the normal range, because
This, thermal resistance type temperature probe preferable for the bearing temperature measurement method of nuclear reactor main pump motor, to be effectively ensured
Monitor the accuracy of motor bearings temperature.
Meanwhile being found in motor bearings temperature anomaly treatment process, temperature probe is mounted on the position on thrust pad
Related with temperature deviation, verification experimental verification, when temperature probe is mounted on the middle position on thrust pad, temperature deviation is smaller,
Therefore, the mounting hole aperture for being used to install temperature probe on thrust pad is extended to diameter 10mm by original 8mm, led to simultaneously
It crosses bushing temperature probe is mounted at the center of mounting hole, so that the temperature deviation of temperature probe monitoring is small, monitoring
Temperature and the actual temperature of motor bearings are more nearly；In addition, temperature probe is in a pre-installation, school is carried out to each temperature probe
It tests, mutually carries out pairing use for temperature difference between each temperature probe is the smallest, so that the size of temperature deviation is effectively reduced,
The temperature that temperature probe monitoring has further been effectively ensured is close with the actual temperature of motor bearings.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (12)
1. a kind of motor bearings temperature anomaly processing method of nuclear reactor main pump, which is characterized in that including following processing step:
The alarm temperature of S1, default motor bearings, the alarm temperature are 72 DEG C~80 DEG C；
S2, the actual temperature for collecting motor bearings, pass through the thermometric on several several thrust pads being mounted on motor bearings
The actual temperature of probe monitors motor bearings；
S3, analytical judgment compare actual temperature and alarm temperature, when actual temperature is greater than alarm temperature, stop motor
It is replaced after only working；When actual temperature is less than alarm temperature, according to the temperature fluctuation of actual temperature or temperature deviation into
Row judgement, repairs or replaces the motor to the selection of Motor；
The maximum temperature value of the motor bearings that the temperature fluctuation is monitored by the same temperature probe and lowest temperature angle value it
Difference；
The temperature deviation is the temperature difference for the motor bearings that two temperature probes of same time point monitor respectively.
2. motor bearings temperature anomaly processing method according to claim 1, it is characterised in that: in step s3, according to
The temperature fluctuation carry out judging processing the following steps are included:
When temperature fluctuation≤4 DEG C, motor is operated normally；
Or, the maximum temperature point of the temperature fluctuation is judged when the temperature fluctuation is greater than 4 DEG C and when less than 8 DEG C, if
When maximum temperature point≤68 DEG C, motor is operated normally, if 68 DEG C of > of maximum temperature point, motor is replaced after stopping working；
Or, motor is replaced after stopping working when temperature fluctuation >=8 DEG C.
3. motor bearings temperature anomaly processing method according to claim 1, it is characterised in that: in step s3, according to
The temperature deviation carry out judging processing the following steps are included:
When temperature deviation≤10 DEG C, motor is operated normally；
Or, judging the maximum temperature point of temperature probe, when temperature deviation is greater than 10 DEG C and when less than 15 DEG C if the highest temperature
When spending point≤68 DEG C, motor is operated normally, if 68 DEG C of > of maximum temperature point, motor is replaced after stopping working；
Or, motor is replaced after stopping working when temperature deviation >=15 DEG C.
4. motor bearings temperature anomaly processing method according to claim 1, it is characterised in that: several temperature probes
It is arranged at intervals on several thrust bearing shoe valves.
5. motor bearings temperature anomaly processing method according to claim 4, it is characterised in that: the temperature probe is heat
Resistance temperature probe.
6. motor bearings temperature anomaly processing method according to claim 4, it is characterised in that: the temperature probe is K
Type thermojunction type temperature probe.
7. motor bearings temperature anomaly processing method according to any one of claims 1 to 6, it is characterised in that: described to push away
Mounting hole aperture in power watt for installing temperature probe is 8mm-10mm.
8. motor bearings temperature anomaly processing method according to claim 7, it is characterised in that: the mounting hole aperture is
10mm。
9. motor bearings temperature anomaly processing method according to claim 8, it is characterised in that: the alarm temperature is 72
℃。
10. motor bearings temperature anomaly processing method according to claim 9, it is characterised in that: the temperature probe is logical
Cross the center that bushing is fixed on the mounting hole.
11. motor bearings temperature anomaly processing method according to claim 3, it is characterised in that: by several thermometrics
Before probe is mounted on the thrust pad, temperature monitoring verification is carried out to each temperature probe, by two of them school
The smallest temperature probe of temperature difference is tested to be matched to be used to monitor the temperature deviation；The adjacent peace of two temperature probes
On corresponding thrust pad.
12. motor bearings temperature anomaly processing method according to claim 3, it is characterised in that: by several thermometrics
Before probe is mounted on the thrust pad, temperature monitoring verification is carried out to each temperature probe, by two of them school
The smallest temperature probe of temperature difference is tested to be matched to be used to monitor the temperature deviation；Two temperature probes are with motor
The axis of bearing, which is that symmetry axis is opposite, to be mounted on corresponding thrust pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073347.3A CN109378943A (en) | 2018-09-14 | 2018-09-14 | A kind of motor bearings temperature anomaly processing method of nuclear reactor main pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073347.3A CN109378943A (en) | 2018-09-14 | 2018-09-14 | A kind of motor bearings temperature anomaly processing method of nuclear reactor main pump |
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| Publication Number | Publication Date |
|---|---|
| CN109378943A true CN109378943A (en) | 2019-02-22 |
Family
ID=65404654
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|---|---|---|---|
| CN201811073347.3A Pending CN109378943A (en) | 2018-09-14 | 2018-09-14 | A kind of motor bearings temperature anomaly processing method of nuclear reactor main pump |
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| CN108105106A (en) * | 2017-11-27 | 2018-06-01 | 洛阳双瑞特种装备有限公司 | A kind of determination method of magnetic drive pump inner rotor bearing abrasion |
| CN108362497A (en) * | 2018-03-08 | 2018-08-03 | 云南电网有限责任公司电力科学研究院 | A kind of method and system judged extremely for water turbine set bearing temperature |
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2018
- 2018-09-14 CN CN201811073347.3A patent/CN109378943A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644088A (en) * | 2016-12-19 | 2017-05-10 | 国网山东省电力公司泰安供电公司 | Transformer charged detection system and method based on infrared temperature measurement |
| CN108105106A (en) * | 2017-11-27 | 2018-06-01 | 洛阳双瑞特种装备有限公司 | A kind of determination method of magnetic drive pump inner rotor bearing abrasion |
| CN108362497A (en) * | 2018-03-08 | 2018-08-03 | 云南电网有限责任公司电力科学研究院 | A kind of method and system judged extremely for water turbine set bearing temperature |
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