CN104166412A - Nuclear power station main pump stator temperature monitoring system and monitoring method thereof - Google Patents
Nuclear power station main pump stator temperature monitoring system and monitoring method thereof Download PDFInfo
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- CN104166412A CN104166412A CN201410392843.0A CN201410392843A CN104166412A CN 104166412 A CN104166412 A CN 104166412A CN 201410392843 A CN201410392843 A CN 201410392843A CN 104166412 A CN104166412 A CN 104166412A
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- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention discloses a nuclear power station main pump stator temperature monitoring system and a monitoring method of the nuclear power station main pump stator temperature monitoring system. The system is used for monitoring the stator temperatures of M main pumps and comprises a main controller, N temperature probes and N DCS card parts. The main controller is used for information processing, each main pump is provided with the N temperature probes used for collecting the stator temperatures of the main pumps, and the N DCS card parts are connected with the main controller. Each DCS card part is respectively connected with the N temperature probes of each main pump. M and N are respectively an integer larger than or equal to two. While performing redundancy monitoring on the stator temperature of each main pump, the monitoring system performs redundancy monitoring on the DCS card parts, and therefore it is avoided that when the partial temperature probes and the DCS card parts fail, a nuclear power station unit can not monitor the stator temperatures in real time, alarm information can not be triggered, stator coils are burned out, and the main pumps are damaged.
Description
Technical field
The present invention relates to monitor and control of nuclear power station field, relate in particular to a kind of nuclear power station main pump stator temperature supervisory system and method for supervising thereof.
Background technology
Main pump is the visual plant of nuclear power station, be used for driving a circuit cools agent that reactor core heat is exported to secondary circuit, whether it normally moves with the operation of whole nuclear power station unit closely bound up, for guaranteeing the normal operation of main pump, nuclear power station need carry out Real-Time Monitoring to information such as the vibration of main pump, displacement, bearing temperature, stator temperature and tach signals, to control main pump, under the normal conditions of condition such as vibration, displacement, bearing temperature, stator temperature and tach signal, works.
When nuclear power station main pump stator temperature is monitored in prior art, adopt three temp probes to gather the stator temperature of each main pump, and the stator temperature signal that three temp probes on each main pump are collected transfers to a DCS fastener, by DCS fastener, be transferred to master controller, if the stator temperature collecting surpasses default warning value, control main pump and quit work, to avoid main pump stator temperature too high and burn out stator coil.Three temp probes of available technology adopting carry out redundancy monitoring to the stator temperature of each main pump, when avoiding a temp probe to break down, cannot realize the stator temperature of main pump is monitored, and then affect the normal operation of main pump.But existing nuclear power station main pump stator temperature monitoring has the following disadvantages: the stator temperature signal of three temp probe collections on each main pump all transfers to master controller by a DCS fastener, when if this DCS fastener breaks down, the stator temperature signal gathering described in three temp probes on this main pump cannot be sent to master controller, nuclear power station unit cannot be monitored in real time to stator temperature, cannot trigger relevant warning message, and then increase the risk that stator coil was burned, caused that main pump damages.
Summary of the invention
The technical problem to be solved in the present invention is, for the defect of prior art, provides a kind of nuclear power station main pump stator temperature supervisory system and method for supervising thereof.
The technical solution adopted for the present invention to solve the technical problems is: a kind of nuclear power station main pump stator temperature supervisory system, for the stator temperature of M platform main pump is monitored, described system comprises master controller for carrying out information processing, be arranged on each main pump for gathering N temp probe of main pump stator temperature and N the DCS fastener being connected with described master controller; Described each DCS fastener is connected with described N temp probe of each main pump respectively; Described M, N are the integer that is not less than 2.
Preferably, described in each, temp probe is provided with splicing ear, between splicing ear and described DCS fastener, by terminal module, is connected.
Preferably, described terminal module is provided with M the entrance hole and a wire hole being connected with described DCS fastener being connected with a described temp probe in each main pump.
Preferably, between described terminal module and described splicing ear, by the first terminal line, be connected, between described terminal module and described DCS fastener, by the second terminal line, be connected.
Preferably, also comprise alarm and the display being connected with described master controller.
Preferably, described temp probe is thermal resistance probe; Described DCS fastener is thermal resistance IO fastener.
Preferably, N is 3,4 or 5.
The present invention also provides a kind of method for supervising of nuclear power station main pump stator temperature supervisory system, comprises the following steps:
S1: adopt respectively N temp probe to gather N the first temperature information of each the main pump stator in M platform main pump;
S2: the described N of the N of each main pump temp probe collection the first temperature information transferred to master controller by N DCS fastener respectively;
S3: master controller carries out respectively calibration process to the N of each main pump in M platform main pump the first temperature information, obtains the second temperature information of rear each the main pump stator of calibration;
S4: master controller judges whether described the second temperature information is greater than default warning value, if the stator temperature of described main pump exists abnormal; Repeating step S1～S3 if not;
Wherein, M, N are not less than 2 integer.
Preferably, described temp probe comprises thermal resistance probe; Described DCS fastener comprises thermal resistance IO fastener; The N of each the main pump stator in the M platform main pump gathering in described step S1 first temperature information is N resistance signal; Each DCS fastener in N in described step S2 DCS fastener changes into M current signal by the M from M platform main pump described resistance signal respectively; In described step S3, master controller intersects relatively to N current signal of each main pump in described M platform main pump, to determine whether a described N current signal exists extremely, if there is abnormal current signal, there is fault in its corresponding temp probe; Master controller is got rid of abnormal current signal, calculates the average that does not have abnormal current signal, and converts it into the second temperature signal of main pump stator.
Preferably, described default warning value comprises the default warning value of main pump stator temperature when hot shutdown condition, and it is 120 ℃; And when cold shut state the default warning value of stator temperature, it is 130 ℃.
The present invention compared with prior art tool has the following advantages: implement the present invention, the some DCS fasteners that are connected with master controller respectively that employing is consistent with temp probe quantity on each main pump, some temp probes on each main pump are connected with some DCS fasteners respectively, when carrying out redundancy monitoring to the stator temperature of each main pump, realization realizes the redundancy monitoring to some DCS fasteners, while breaking down with DCS fastener to avoid portion temperature to pop one's head in, cause nuclear power station unit to monitor in real time stator temperature, thereby cannot trigger alarm information, cause stator coil to be burned, cause the generation of the situation that main pump damages.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the theory diagram of nuclear power station main pump stator temperature supervisory system in one embodiment of the invention.
Fig. 2 is the process flow diagram of the method for supervising of nuclear power station main pump stator temperature supervisory system in one embodiment of the invention.
In figure: 1, main pump; 2, temp probe; 3, DCS fastener; 4, master controller; 5, splicing ear; 6, terminal module; 7, alarm; 8, display; 91, the first terminal line; 92, the second terminal line.
Embodiment
For technical characterictic of the present invention, object and effect being had more clearly, understand, now contrast accompanying drawing and describe the specific embodiment of the present invention in detail.
Embodiment 1
As shown in Figure 1, the present embodiment discloses a kind of nuclear power station main pump stator temperature supervisory system.This nuclear power station main pump stator temperature supervisory system is for monitoring the stator temperature of M platform main pump 1, to avoid that the stator temperature of main pump 1 is too high and impact burns out stator coil, and then causes the damage of nuclear power station main pump 1; Understandably, M is not less than 2 integer.
This nuclear power station main pump stator temperature supervisory system comprises master controller 4 for carrying out information processing, is arranged at N the DCS fastener 3 for gathering N temp probe 2 of main pump 1 stator temperature, being connected with master controller 4 on each main pump 1, and each DCS fastener 3 is connected with N temp probe 2 of each main pump 1 respectively; And N the DCS fastener 3 that connects master controller 4 and N temp probe 2.Understandably, N is not less than 2 integer, and the quantity of N is preferably 3,4 or 5.
In the present embodiment, the value of M and N is 3, be that nuclear power station is provided with 3 main pumps 1, each main pump 1 adopts 2 pairs of stator temperatures of 3 temp probes to monitor, when avoiding adopting the stator temperature of 2 pairs of main pumps 1 of a temp probe to monitor, if this temp probe 2 breaks down, cannot realize the real-time monitoring to the stator temperature of main pump 1, may occur burning out stator coil because stator temperature is too high, affect the appearance of the normal operation of main pump 1.And 3 temp probes 2 of each main pump 1 are connected with 3 DCS fasteners 3 respectively, 3 DCS fasteners 3 are connected with master controller 4.When avoiding single DCS fastener 3 to connect a plurality of temp probes 2 with master controller 4, this single DCS fastener 3 breaks down and makes the temperature signal of connected a plurality of temp probe 2 collections cannot transfer to master controller 4, master controller 4 cannot be monitored in real time to the stator temperature of main pump 1, exist stator coil to burn out, even damage the potential safety hazard of main pump 1 because of excess Temperature.
Understandably, this nuclear power station main pump 1 stator temperature supervisory system also comprises the alarm 7 being connected with master controller 4.This alarm 7 can be audible-visual annunciator or other alarms.Master controller 4 is controlled alarms 7 DCS fastener 3 or temp probe 2 alarm that breaks down occurs, and controls alarm 7 simultaneously and surpasses default warning value alarm at main pump 1 stator temperature collecting, to avoid excess Temperature to burn out stator coil.
Understandably, this nuclear power station main pump stator temperature supervisory system also comprise be connected with master controller 4 for showing the display of the temperature information of each main pump 1.Understandably, this display can be LCDs, can show in real time the temperature information that each temp probe 2 transmits by DCS fastener 3, so that main pump 1 stator temperature is monitored in real time.
Particularly, each temp probe 2 is provided with splicing ear 5, between splicing ear 5 and DCS fastener 3, by terminal module 6, is connected.Terminal module 6 is provided with M the entrance hole and a wire hole being connected with DCS fastener 3 being connected with a temp probe 2 in each main pump 1.Between terminal module 6 and splicing ear 5, by the first terminal line 91, be connected, between terminal module 6 and DCS fastener 3, by the second terminal line 92, be connected.Understandably, the first terminal line 91 and the second terminal line 92 are special-purpose cables.
In the present embodiment, temp probe 2 is thermal resistance probes, and the temperature information of its collection is resistance signal; Accordingly, DCS fastener 3 is thermal resistance IO fastener, for the resistance signal that thermal resistance probe is gathered, changes into current signal.The resistance signal that 3 temp probes 2 on each main pump 1 collect is converted thereof into current signal and is transferred to master controller 4 by 3 DCS fasteners 3 respectively, 4 pairs of 9 current signals that transmit by 3 DCS fasteners 3 of master controller judge processing, to determine whether 3 DCS fasteners 3 and 9 temp probes 2 normally work.Particularly, if master controller 4 can receive the current signal of 3 DCS fasteners, 3 transmission, 3 DCS fastener 3 non-fault; If master controller 4 is received the current signal (receiving only the current signal of 2 or 1 DCS fastener 3 transmission) that is less than 3 transmission of 3 DCS fasteners, there is DCS fastener 3 to have fault.4 pairs of current signals that gather by 3 temp probes 2 on same main pump 1 of 3 DCS fasteners, 3 transmission of master controller carry out calibration process, 3 current signals are intersected relatively, and pass through channel authentication, if the deviation of 3 current signals less (all the average of 3 current signals ± 0.2% in), 3 temp probes 2 on this main pump 1 are normally worked, if the deviation of 3 current signals is larger, explanation has temp probe 2 to have fault.The current signal that master controller 4 gathers the temp probe 2 that does not have fault carries out calculation process, calculate its average, and changed into the second temperature information, its default warning value is compared, to determine whether the stator temperature of main pump 1 exists extremely, and comparative result is exported by display 8, for staff, carry out real time inspection; If stator temperature exists abnormal, by master controller 4 trigger alarm devices 7, report to the police.
Embodiment 2
As shown in Figure 2, the present invention also provides a kind of method for supervising of nuclear power station main pump stator temperature supervisory system, and this method for supervising comprises the following steps:
S1: adopt respectively N temp probe 2 to gather N the first temperature information of each main pump 1 stator in M platform main pump 1, wherein, M, N are not less than 2 integer.Preferably, the quantity N of temp probe 2 is 3,4 or 5.In the present embodiment, the value of M and N is 3, and nuclear power station is provided with 3 main pumps 1, and each main pump 1 is provided with 3 temp probes 2 to gather its first temperature information.Particularly, temp probe 2 can be thermal resistance probe, and its first temperature information gathering is resistance signal, and 3 the first temperature informations that collect each main pump 1 stator in 3 main pumps 1 in step S1 are battery signal.
S2: 3 the first temperature informations that 3 temp probes of each main pump 12 are gathered transfer to master controller 4 by N DCS fastener 3 respectively.Correspondingly, DCS fastener 3 is thermal resistance IO fastener, for 3 resistance signals that step S1 is gathered, converts 3 current signals to.In the present embodiment, 3 resistance signals that 3 temp probes 2 on each main pump 1 gather are processed by 3 DCS fasteners 3 respectively, convert 3 current signals to, and transfer to master controller 4.Each the DCS fastener 3 in 3 DCS fasteners 3 changes into 3 current signals by 3 resistance signals from 3 main pumps 1 respectively.
S3: in 4 pairs of 3 main pumps 1 of master controller, 3 the first temperature informations of each main pump 1 carry out respectively calibration process, obtains calibration the second temperature information of each main pump 1 stator afterwards.Particularly, the first temperature information by 3 transmission of 3 DCS fasteners is current signal, master controller 4 intersects relatively to 3 of each main pump 1 current signals, to determine whether current signal exists extremely, if there is abnormal current signal, there is fault in its corresponding temp probe 2.3 current signals are intersected relatively, and pass through channel authentication, if the deviation of 3 current signals less (all the average of 3 current signals ± 0.2% in), 3 temp probes 2 on this main pump 1 are normally worked, if the deviation of 3 current signals is larger, explanation has temp probe 2 to have fault.Master controller 4 is got rid of abnormal current signal, calculates the average that does not have abnormal current signal, and converts it into the second temperature signal of main pump 1 stator.
Understandably, if master controller 4 receives the current signal of 3 DCS fasteners, 3 transmission, 3 DCS fastener 3 non-fault; If master controller 4 is received the current signal (can only receive the current signal of 2 or 1 DCS fastener 3 transmission) that is less than 3 transmission of 3 DCS fasteners, there is DCS fastener 3 to have fault.
S4: master controller 4 judges whether the second temperature information is greater than default warning value, if the stator temperature of main pump 1 exists abnormal; Repeating step S1～S3 if not.Particularly, default warning value comprises the default warning value of main pump 1 stator temperature when hot shutdown condition, and it is 120 ℃; And when cold shut state the default warning value of stator temperature; It is 130 ℃.Understandably, master controller 4 shows the comparative result of the second temperature signal of main pump 1 and the second temperature signal and default warning value in real time by display 8, for staff, monitors in real time.Master controller 4 is also connected with alarm 7, in the situation that the stator temperature of main pump 1 exists is abnormal, trigger alarm device 7 is reported to the police, to remind staff in time the stator temperature of main pump 1 to be monitored.
The method for supervising of this nuclear power station main pump stator temperature supervisory system can be realized when the stator temperature of each main pump 1 is carried out to redundancy monitoring and realize the redundancy of 3 DCS fasteners 3 is monitored, when avoiding portion temperature probe 2 or DCS fastener 3 to break down, cause nuclear power station unit to monitor in real time stator temperature, thereby cannot trigger alarm information, cause stator coil to be burned, to cause the generation of the situation that main pump 1 damages.
The present invention describes by several specific embodiments, it will be appreciated by those skilled in the art that, without departing from the present invention, can also carry out various conversion and be equal to alternative the present invention.In addition, for particular condition or concrete condition, can make various modifications to the present invention, and not depart from the scope of the present invention.Therefore, the present invention is not limited to disclosed specific embodiment, and should comprise the whole embodiments that fall within the scope of the claims in the present invention.
Claims (10)
1. a nuclear power station main pump stator temperature supervisory system, for the stator temperature of M platform main pump (1) is monitored, it is characterized in that: described system comprises master controller (4) for carrying out information processing, be arranged on each main pump (1) for gathering N the temp probe (2) of main pump (1) stator temperature and N the DCS fastener (3) being connected with described master controller (4); Described each DCS fastener (3) is connected with described N the temp probe (2) of each main pump (1) respectively; Described M, N are the integer that is not less than 2.
2. nuclear power station main pump stator temperature supervisory system according to claim 1, is characterized in that: temp probe described in each (2) is provided with splicing ear (5), between splicing ear (5) and described DCS fastener (3), by terminal module (6), is connected.
3. nuclear power station main pump stator temperature supervisory system according to claim 2, is characterized in that: described terminal module (6) is provided with M the entrance hole and a wire hole being connected with described DCS fastener (3) being connected with a described temp probe (2) in each main pump (1).
4. nuclear power station main pump stator temperature supervisory system according to claim 3, it is characterized in that: between described terminal module (6) and described splicing ear (5), by the first terminal line (91), be connected, between described terminal module (6) and described DCS fastener (3), by the second terminal line (92), be connected.
5. nuclear power station main pump stator temperature supervisory system according to claim 1, is characterized in that: also comprise the alarm (7) and the display (8) that are connected with described master controller (4).
6. nuclear power station main pump stator temperature supervisory system according to claim 1, is characterized in that: described temp probe (2) is thermal resistance probe; Described DCS fastener (3) is thermal resistance IO fastener.
7. according to the nuclear power station main pump stator temperature supervisory system described in claim 1～6 any one, it is characterized in that: N is 3,4 or 5.
8. a method for supervising for the nuclear power station main pump stator temperature supervisory system described in claim 1～7 any one, is characterized in that: comprise the following steps:
S1: adopt respectively N temp probe (2) to gather N the first temperature information of each main pump (1) stator in M platform main pump (1);
S2: the described N that N the temp probe (2) of each main pump (1) gathered first temperature information transfers to master controller (4) by N DCS fastener (3) respectively;
S3: master controller (4) carries out respectively calibration process to the N of each main pump (1) in M platform main pump (1) the first temperature information, obtains the second temperature information of rear each main pump (1) stator of calibration;
S4: master controller (4) judges whether described the second temperature information is greater than default warning value, if the stator temperature of described main pump (1) exists abnormal; Repeating step S1～S3 if not;
Wherein, M, N are not less than 2 integer.
9. method for supervising according to claim 8, is characterized in that: described temp probe (2) comprises thermal resistance probe; Described DCS fastener (3) comprises thermal resistance IO fastener; The N of each main pump (1) stator in the M platform main pump (1) gathering in described step S1 first temperature information is N resistance signal; Each DCS fastener (3) in N in described step S2 DCS fastener (3) changes into M current signal by the M from M platform main pump (1) described resistance signal respectively; Master controller in described step S3 (4) intersects relatively to N the current signal of each main pump (1) in described M platform main pump (1), to determine whether a described N current signal exists extremely, if there is abnormal current signal, there is fault in its corresponding temp probe (2); Master controller (4) is got rid of abnormal current signal, calculates the average that does not have abnormal current signal, and converts it into the second temperature signal of main pump (1) stator.
10. method for supervising according to claim 8, is characterized in that: described default warning value comprises the default warning value of main pump (1) stator temperature when hot shutdown condition, and it is 120 ℃; And when cold shut state the default warning value of stator temperature, it is 130 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392843.0A CN104166412B (en) | 2014-08-12 | A kind of nuclear power station main pump stator temperature monitoring system and monitoring method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410392843.0A CN104166412B (en) | 2014-08-12 | A kind of nuclear power station main pump stator temperature monitoring system and monitoring method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104166412A true CN104166412A (en) | 2014-11-26 |
| CN104166412B CN104166412B (en) | 2017-01-04 |
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| CN105352091A (en) * | 2015-11-30 | 2016-02-24 | 珠海格力电器股份有限公司 | Humidifier and dry burning prevention method thereof |
| CN113345614A (en) * | 2021-03-24 | 2021-09-03 | 中国核电工程有限公司 | Lubrication monitoring system and method for important rotating equipment of nuclear island |
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| US4085355A (en) * | 1976-04-26 | 1978-04-18 | Fradella Richard B | Variable-speed regenerative brushless electric motor and controller system |
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