CN106653119B - Nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device and method - Google Patents

Nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device and method Download PDF

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CN106653119B
CN106653119B CN201611122788.9A CN201611122788A CN106653119B CN 106653119 B CN106653119 B CN 106653119B CN 201611122788 A CN201611122788 A CN 201611122788A CN 106653119 B CN106653119 B CN 106653119B
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positive electricity
electricity conductance
data acquisition
diagnosis
acquisition module
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CN106653119A (en
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刘义
任宇阳
罗芳
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Research Institute of Nuclear Power Operation
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Research Institute of Nuclear Power Operation
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    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21C—NUCLEAR REACTORS
    • G21C17/00—Monitoring; Testing ; Maintaining
    • G21C17/02—Devices or arrangements for monitoring coolant or moderator
    • G21C17/022—Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
    • 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
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    • Y02E30/30—Nuclear fission reactors

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  • Engineering & Computer Science (AREA)
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  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Monitoring And Testing Of Nuclear Reactors (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The invention discloses a kind of nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device and method, is related to nuclear power plant's secondary circuit chemical index abnormity diagnosis field.The device includes a first positive electricity conductance table, one the second positive electricity conductance table, four the 3rd positive electricity conductance tables, one sodium table, one analysis indicating module, one fault logging module, and the first data acquisition module being connected with the first positive electricity conductance table, the second data acquisition module being connected with the second positive electricity conductance table, the 3rd data acquisition module being connected with four the 3rd positive electricity conductance tables, the 4th data acquisition module being connected with sodium table, it is described analysis indicating module respectively with the first data acquisition module, second data acquisition module, 3rd data acquisition module, 4th data acquisition module, fault logging module is connected.The present invention can effectively improve the efficiency and accuracy of nuclear power plant's condensate system sun conductivity indices diagnosis.

Description

Nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device and method
Technical field
The present invention relates to nuclear power plant's secondary circuit chemical index abnormity diagnosis field, and in particular to a kind of nuclear power plant condenses water system System positive electricity conductance Indexes Abnormality diagnostic device and method.
Background technology
At present, when the situation for deviateing technical specification occur in the positive conductivity indices of nuclear power plant's unit condensate system, lead to Often rely on the experience of specialty chemical personnel and handled according to power plant's associative operation code.Country greatly develops nuclear power at present, Nuclear power station is more and more, but in terms of nuclear power plant's secondary circuit index diagnostic techniques, possesses the chemical work personnel of rich experiences Seem relatively deficient；On the other hand, staff typically carries out relevant abnormalities processing with reference to concrete operations code, but often real The condition element on border and the precondition that operational procedure requires are inconsistent, cause relevant treatment complicated, so as to cause to examine Disconnected efficiency and accuracy is relatively low.
The content of the invention
The invention aims to overcome the shortcomings of above-mentioned background technology, there is provided a kind of nuclear power plant's condensate system positive electricity Conductance Indexes Abnormality diagnostic device and method, the device and method can effectively improve nuclear power plant's condensate system positive electricity conductance The efficiency and accuracy of index diagnosis.
The present invention provides a kind of nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device, and the device includes one First positive electricity conductance table, a second positive electricity conductance table, four the 3rd positive electricity conductance tables, a sodium table, an analysis instruction mould Block, a fault logging module, and the first data acquisition module being connected with the first positive electricity conductance table and the second positive electricity conductance The second connected data acquisition module of table, the 3rd data acquisition module being connected with four the 3rd positive electricity conductance tables and sodium table The 4th connected data acquisition module, it is described analysis indicating module respectively with the first data acquisition module, the second data acquisition module Block, the 3rd data acquisition module, the 4th data acquisition module, fault logging module are connected, wherein, the first positive electricity conductance table, Sodium epitope exports main pipe in condensate pump, and the second positive electricity conductance epitope is in main steam system pipeline, four the 3rd positive electricity conductance tables Condenser piping is respectively positioned on, each 3rd positive electricity conductance table corresponds to Steam Condenser Leak point at one；
The first positive electricity conductance table is used for：Positive electricity conductance at on-line checking condensate pump outlet main pipe, obtains first Positive electricity conductance λ1 +；
First data acquisition module is used for：Gather the first positive electricity conductance λ1 +, and by λ1 +It is sent to analysis instruction mould Block；
The second positive electricity conductance table is used for：On-line checking VVP (main steam system) positive electricity conductance, obtains the second positive electricity Conductance λ2 +；
Second data acquisition module is used for：Gather the second positive electricity conductance λ2 +, and by λ2 +It is sent to analysis instruction mould Block；
The 3rd positive electricity conductance table is used for：The positive electricity conductance of on-line checking condenser piping, obtains the 3rd positive electricity conductance λ3 +；
3rd data acquisition module is used for：Gather the 3rd positive electricity conductance λ3 +, and by λ3 +It is sent to analysis instruction mould Block；
The sodium table is used for：On-line checking CEX (condensate system) Na ion concentration；
4th data acquisition module is used for：Na ion concentration is gathered, and Na ion concentration is sent to analysis instruction Module；
The analysis indicating module is used for：
According to the actual operating state of nuclear power plant's unit, the controlling value X1 and desired value of setting condensate system positive electricity conductance X2, and condensate system Na ion concentration limit value Y；
To λ1 +Judged, if λ1 +>=X1, prompt to take measures to return in limit value as early as possible, if X2≤λ1 +<X1, Indicate that the second data acquisition module is operated, if λ1 +<X2, then it represents that positive electricity conductance is normal, and diagnosis terminates；
To λ2 +Judged, if λ2 +Normally, then directly the 4th data acquisition module of instruction is operated, if λ2 +It is different Often, then it represents that VVP steam is unqualified, prompts to increase steam generator SG blowdown flow rate, and the first data acquisition module resurveys, If λ1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, instruction the Four data acquisition modules are operated；
Na ion concentration is judged, if Na ion concentration>Y, the 3rd data acquisition module of instruction are operated；Such as Whether fruit Na ion concentration≤Y, analysis indicating module prompting diagnosis CEX pipeline sealing are good；
CEX pipeline sealing it is bad when, prompt maintenance CEX pipeline, wait it is pending after, the first data acquisition module is again Collection, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, then carry Show whether good and SER (conventional island desalination water distribution system) the positive electricity conductance of diagnosis condenser sealing is abnormal；
During CEX pipeline good seal, directly whether good and SER the positive electricity conductance of prompting diagnosis condenser sealing is No exception；
To λ3 +Judged, if it is decided that the λ that wherein one or more the 3rd positive electricity conductance tables measure3 +>=X1, then basis Result of determination determines Steam Condenser Leak point, and prompts to overhaul Steam Condenser Leak point；After the completion of Awaiting Overhaul, the first data acquisition module Resurvey, if λ1 +<X2, positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, New events are diagnosed as, and indicate that fault logging module is operated；
The fault logging module is used for：Record fault detail content.
On the basis of above-mentioned technical proposal, the analysis indicating module is additionally operable to：
When the first positive electricity conductance table is normal, prompt whether diagnosis ion exchange column fails, if ion exchange column has Effect, the second data acquisition module of instruction are operated；If ion exchange column fails, prompt to change ion exchange column, at wait After reason, λ that the first positive electricity conductance table measures again1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, Diagnosis terminates, if X2≤λ1 +<X1, the second data acquisition module of instruction are operated.
On the basis of above-mentioned technical proposal, the analysis indicating module is additionally operable to：
When the first positive electricity conductance table is abnormal, analysis indicating module prompting the first positive electricity conductance table of maintenance, at wait After reason, the first data acquisition module resurveys, if λ1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, Diagnosis terminates, if X2≤λ1 +<X1, further diagnose whether ion exchange column fails, if ion exchange column is effective, instruction the Two data acquisition modules are operated；If ion exchange column fail, prompt change ion exchange column, wait it is pending after, it is described The λ that first positive electricity conductance table measures again1 +<X2, then positive conductivity values, failure cause and treatment measures being exported, diagnosis terminates, If X2≤λ1 +<X1, the second data acquisition module of instruction are operated.
On the basis of above-mentioned technical proposal, the analysis indicating module is additionally operable to：
When condenser sealing is bad, the valve state of prompting maintenance to be connected with vacuum system, wait it is pending after, it is described First data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures；If X2 ≤λ1 +<X1, prompt further diagnosis condenser supercooling degree whether excessive；
During the condenser good seal, directly whether prompting diagnosis condenser supercooling degree is excessive；
If condenser supercooling spend greatly, prompt adjustment condenser supercooling degree, wait it is pending after, the first data acquisition module Resurvey, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +< X1, prompt further diagnosis SER pipelines sealing whether good；
If condenser supercooling degree is normal, whether directly prompting diagnosis SER pipelines sealing is good；SER pipelines to be checked are each After valve state and processing, the first data acquisition module resurveys, if λ1 +<X2, export positive conductivity values, failure cause and Treatment measures, diagnosis terminate；If X2≤λ1 +<X1, analysis indicating module are diagnosed as new events, and indicate that fault logging module is carried out Work.
On the basis of above-mentioned technical proposal, the analysis indicating module is additionally operable to：
During the positive conductivity anomaly of the SER, prompt moisturizing handle again, wait it is pending after, the first data acquisition module Resurvey, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, carry Show whether the hydrophobic positive electricity conductance of diagnosis gland heater is abnormal；
When the positive electricity conductance of the SER is normal, prompt the hydrophobic positive electricity conductance of diagnosis gland heater whether abnormal；
If the hydrophobic positive conductivity anomaly of gland heater, prompt maintenance gland heater air-tightness, wait it is pending after, First data acquisition module resurveys, if λ1 +<X2, the analysis indicating module export positive conductivity values, failure cause and Treatment measures, diagnosis terminate；If X2≤λ1 +<X1, prompt the positive electricity that diagnosis ABP (low-pressure feed heater system) is hydrophobic in next step Whether conductance is abnormal；
If the hydrophobic positive electricity conductance of gland heater is normal, directly prompting diagnoses the hydrophobic positive electricity conductances of ABP in next step It is whether abnormal；
Analyze indicating module prompting maintenance ABP air-tightness, wait it is pending after, the first data acquisition module resurveys, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, new events are diagnosed as, And indicate that fault logging module is operated.
The present invention also provides a kind of nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnosis applied to said apparatus Method, comprise the following steps：
S1, the actual operating state according to nuclear power plant's unit, set controlling value X1 and the phase of condensate system positive electricity conductance Prestige value X2, and condensate system Na ion concentration limit value Y；
Positive electricity conductance at S2, the first positive electricity conductance table on-line checking condensate pump outlet main pipe, obtains the first positive electricity and leads Rate λ1 +, first data collecting module collected the first positive electricity conductance λ1 +, and by λ1 +It is sent to analysis indicating module, analysis instruction mould Block is to λ1 +Judged, if λ1 +>=X1, analysis indicating module prompting take measures to return in limit value as early as possible, if X2≤ λ1 +<X1, step S3 is gone to, if λ1 +<X2, then it represents that positive electricity conductance is normal, and diagnosis terminates；
S3, the second positive electricity conductance table on-line checking VVP positive electricity conductance, obtain the second positive electricity conductance λ2 +, the second data adopt Collect module and gather the second positive electricity conductance λ2 +, and by λ2 +Analysis indicating module is sent to, analysis indicating module is to λ2 +Judged, If λ2 +Normally, then step S4 is directly carried out, if λ2 +It is abnormal, then it represents that VVP steam is unqualified, prompts to increase steam generation Device SG blowdown flow rate, the first data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and place Reason measure, diagnosis terminate, if X2≤λ1 +<X1, go to step S4；
S4, sodium table on-line checking CEX Na ion concentration, the 4th data collecting module collected Na ion concentration, and by sodium Ion concentration is sent to analysis indicating module, and analysis indicating module is judged Na ion concentration, if Na ion concentration>Y, Go to step S5；If Na ion concentration≤Y, whether analysis indicating module prompting diagnosis CEX pipeline sealing is good；
CEX pipeline sealing it is bad when, prompt maintenance CEX pipeline, wait it is pending after, the first data acquisition module is again Collection, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, then carry Show whether good and SER the positive electricity conductance of diagnosis condenser sealing is abnormal；
During CEX pipeline good seal, directly whether good and SER the positive electricity conductance of prompting diagnosis condenser sealing is No exception；
S5, four the 3rd positive electricity conductance table on-line checking condenser pipings positive electricity conductance, obtain the 3rd positive electricity conductance λ3 +, The positive electricity conductance λ of 3rd data collecting module collected the 3rd3 +, and by λ3 +Analysis indicating module is sent to, analysis indicating module is to λ3 + Judged, if analysis indicate that module judges the λ that wherein one or more the 3rd positive electricity conductance tables measure3 +>=X1, then basis Result of determination determines Steam Condenser Leak point, and prompts to overhaul Steam Condenser Leak point；After the completion of Awaiting Overhaul, the first data acquisition module Resurvey, if λ1 +<X2, positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, Analysis indicating module is diagnosed as new events, and indicates that fault logging module records fault detail content.
On the basis of above-mentioned technical proposal, procedure below is also included between step S2 and step S3：
When the first positive electricity conductance table is normal, prompt whether diagnosis ion exchange column fails, if ion exchange column has Effect, goes to step S3；If ion exchange column fail, prompt change ion exchange column, wait it is pending after, first positive electricity is led The λ that rate table measures again1 +<X2, then positive conductivity values, failure cause and treatment measures being exported, diagnosis terminates, if X2≤ λ1 +<X1, go to step S3.
On the basis of above-mentioned technical proposal, procedure below is also included between step S2 and step S3：
When the first positive electricity conductance table is abnormal, analysis indicating module prompting the first positive electricity conductance table of maintenance, at wait After reason, the first data acquisition module resurveys, if λ1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, Diagnosis terminates, if X2≤λ1 +<X1, further diagnose whether ion exchange column fails, if ion exchange column is effective, go to step Rapid S3；If ion exchange column fail, prompt change ion exchange column, wait it is pending after, the first positive electricity conductance table is again The λ measured1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, turn To step S3.
On the basis of above-mentioned technical proposal, procedure below is also included between step S4 and step S5：
When the condenser seals bad, the valve state being connected with vacuum system is overhauled in analysis indicating module prompting, etc. After pending, first data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and place Reason measure；If X2≤λ1 +<X1, prompt further diagnosis condenser supercooling degree whether excessive；
During the condenser good seal, directly whether prompting diagnosis condenser supercooling degree is excessive；
If condenser supercooling spend greatly, analysis indicating module prompting adjustment condenser supercooling degree, wait it is pending after, first Data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures, and diagnosis terminates； If X2≤λ1 +<X1, prompt further diagnosis SER pipelines sealing whether good；
If condenser supercooling degree is normal, whether directly prompting diagnosis SER pipelines sealing is good；SER pipelines to be checked are each After valve state and processing, the first data acquisition module resurveys, if λ1 +<X2, the analysis indicating module output positive electricity are led Rate score, failure cause and treatment measures, diagnosis terminate；If X2≤λ1 +<X1, analysis indicating module is diagnosed as new events, and refers to Show that fault logging module records fault detail content.
On the basis of above-mentioned technical proposal, procedure below is also included between step S4 and step S5：
During the positive conductivity anomaly of the SER, it is described analysis indicating module prompting moisturizing handle again, wait it is pending after, First data acquisition module resurveys, if λ1 +<X2, export positive conductivity values, failure cause and treatment measures, diagnosis knot Beam；If X2≤λ1 +<X1, prompt the hydrophobic positive electricity conductance of diagnosis gland heater whether abnormal；
When the positive electricity conductance of the SER is normal, prompt the hydrophobic positive electricity conductance of diagnosis gland heater whether abnormal；
If the hydrophobic positive conductivity anomaly of gland heater, the analysis indicating module prompting maintenance gland heater gas Close property, wait it is pending after, the first data acquisition module resurveys, if λ1 +<X2, the analysis indicating module output positive electricity conductance Numerical value, failure cause and treatment measures, diagnosis terminate；If X2≤λ1 +<X1, prompt the positive electricity conductance that diagnosis ABP is hydrophobic in next step It is whether abnormal；
If the hydrophobic positive electricity conductance of gland heater is normal, directly prompting diagnoses the hydrophobic positive electricity conductances of ABP in next step It is whether abnormal；
Analyze indicating module prompting maintenance ABP air-tightness, wait it is pending after, the first data acquisition module resurveys, if λ1 +<X2, the analysis indicating module export positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +< X1, analysis indicating module are diagnosed as new events, and indicate that fault logging module records fault detail content.
Compared with prior art, advantages of the present invention is as follows：
The present invention proposes the diagnosis dress of the nuclear power generating sets condensate system positive electricity conductance chemical index exception of complete set Put and diagnostic method, the diagnostic device are detected using the in-line meter parameter related to positive conductivity indices, binding analysis Indicating module and fault logging module, the testing result of various in-line meters is analyzed, and provide operation indicating automatically, it is real Existing automatic on-line diagnosis.When there is the problem of inline diagnosis can't resolve, analysis indicating module is diagnosed as new events, instruction event Barrier logging modle is recorded, and the content of record forms a diagnostic knowledge base, in order to by diagnostic device or method according to The real-world operation of nuclear power plant is optimized and improved, and diagnostic device and diagnostic method is persistently applied to nuclear power generating sets actual Running status and diagnosis effect, effectively improve the efficiency and accuracy of diagnosis.
Brief description of the drawings
Fig. 1 is the flow chart of center power plant condensation water system positive electricity conductance Indexes Abnormality diagnostic method of the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
The embodiment of the present invention provides a kind of nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device, including one group On-line analysis instrument, on-line analysis instrument include a first positive electricity conductance table, a second positive electricity conductance table, four the 3rd sun Electrical conductivity table, a sodium table, indices corresponding to the real-time detection of on-line analysis instrument；The device also includes an analysis and indicated Module, a fault logging module, and be connected with the first positive electricity conductance table the first data acquisition module, lead with the second positive electricity The second connected data acquisition module of rate table, the 3rd data acquisition module and sodium that are connected with four the 3rd positive electricity conductance tables The 4th connected data acquisition module of table, analysis indicating module respectively with the first data acquisition module, the second data acquisition module, 3rd data acquisition module, the 4th data acquisition module, fault logging module are connected, wherein, the first positive electricity conductance table, sodium table Main pipe is exported positioned at condensate pump, the second positive electricity conductance epitope is in main steam system pipeline, four the 3rd equal positions of positive electricity conductance table The Steam Condenser Leak point at condenser piping, each 3rd positive electricity conductance table corresponding one；
First positive electricity conductance table is used for：Positive electricity conductance at on-line checking condensate pump outlet main pipe, obtains the first positive electricity Conductance λ1 +；
First data acquisition module is used for：Gather the first positive electricity conductance λ1 +, and by λ1 +It is sent to analysis indicating module；
Second positive electricity conductance table is used for：On-line checking VVP (main steam system) positive electricity conductance, obtain the second positive electricity conductance λ2 +；
Second data acquisition module is used for：Gather the second positive electricity conductance λ2 +, and by λ2 +It is sent to analysis indicating module；
3rd positive electricity conductance table is used for：The positive electricity conductance of on-line checking condenser piping, obtain the 3rd positive electricity conductance λ3 +；
3rd data acquisition module is used for：Gather the 3rd positive electricity conductance λ3 +, and by λ3 +It is sent to analysis indicating module；
Sodium table is used for：On-line checking CEX (condensate system) Na ion concentration；
4th data acquisition module is used for：Na ion concentration is gathered, and Na ion concentration is sent to analysis indicating module；
Analysis indicating module is used for：
According to the actual operating state of nuclear power plant's unit, the controlling value X1 and desired value of setting condensate system positive electricity conductance X2, and condensate system Na ion concentration limit value Y；
The controlling value X1 of condensate system positive electricity conductance can be 1 μ S/cm, and desired value X2 can be 0.08 μ S/cm, condense Water system Na ion concentration limit value Y can be 5 μ g/L；
To λ1 +Judged, if λ1 +>=X1, prompt to take measures to return in limit value as early as possible, if X2≤λ1 +<X1, Indicate that the second data acquisition module is operated, if λ1 +<X2, then it represents that positive electricity conductance is normal, and diagnosis terminates；
To λ2 +Judged, if λ2 +Normally, then directly the 4th data acquisition module of instruction is operated, if λ2 +It is different Often, then it represents that VVP steam is unqualified, prompts to increase steam generator SG blowdown flow rate, and the first data acquisition module resurveys, If λ1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, instruction the Four data acquisition modules are operated；
Na ion concentration is judged, if Na ion concentration>Y, the 3rd data acquisition module of instruction are operated；Such as Whether fruit Na ion concentration≤Y, analysis indicating module prompting diagnosis condensate system CEX pipeline sealing are good；
CEX pipeline sealing it is bad when, prompt maintenance CEX pipeline, wait it is pending after, the first data acquisition module is again Collection, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, then carry Show whether good and SER (conventional island desalination water distribution system) the positive electricity conductance of diagnosis condenser sealing is abnormal；
During CEX pipeline good seal, directly whether good and SER the positive electricity conductance of prompting diagnosis condenser sealing is No exception；
To λ3 +Judged, if it is decided that the λ that wherein one or more the 3rd positive electricity conductance tables measure3 +>=X1, then basis Result of determination determines Steam Condenser Leak point, and prompts to overhaul Steam Condenser Leak point；After the completion of Awaiting Overhaul, the first data acquisition module Resurvey, if λ1 +<X2, positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, New events are diagnosed as, and indicate that fault logging module is operated；
Fault logging module is used for：Record fault detail content.
Analysis indicating module is additionally operable to：
When first positive electricity conductance table is normal, prompt whether diagnosis ion exchange column fails, if ion exchange column is effective, refer to Show that the second data acquisition module is operated；If ion exchange column fail, prompt change ion exchange column, wait it is pending after, The λ that first positive electricity conductance table measures again1 +<X2, then positive conductivity values, failure cause and treatment measures being exported, diagnosis terminates, If X2≤λ1 +<X1, the second data acquisition module of instruction are operated.
Analysis indicating module is additionally operable to：
When first positive electricity conductance table is abnormal, analysis indicating module prompting maintenance the first positive electricity conductance table, wait it is pending after, First data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures, diagnosis knot Beam, if X2≤λ1 +<X1, further diagnose whether ion exchange column fails, if ion exchange column is effective, indicate the second data Acquisition module is operated；If ion exchange column fail, prompt change ion exchange column, wait it is pending after, the first positive electricity is led The λ that rate table measures again1 +<X2, then positive conductivity values, failure cause and treatment measures being exported, diagnosis terminates, if X2≤ λ1 +<X1, the second data acquisition module of instruction are operated.
Analysis indicating module is additionally operable to：
When condenser sealing is bad, prompt the valve state that is connected with vacuum system of maintenance, wait it is pending after, the first data Acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures；If X2≤λ1 +< X1, prompt further diagnosis condenser supercooling degree whether excessive；
During condenser good seal, directly whether prompting diagnosis condenser supercooling degree is excessive；
If condenser supercooling spend greatly, prompt adjustment condenser supercooling degree, wait it is pending after, the first data acquisition module Resurvey, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +< X1, prompt further diagnosis SER pipelines sealing whether good；
If condenser supercooling degree is normal, whether directly prompting diagnosis SER pipelines sealing is good；SER pipelines to be checked are each After valve state and processing, the first data acquisition module resurveys, if λ1 +<X2, export positive conductivity values, failure cause and Treatment measures, diagnosis terminate；If X2≤λ1 +<X1, analysis indicating module are diagnosed as new events, and indicate that fault logging module is carried out Work.
Analysis indicating module is additionally operable to：
During SER positive conductivity anomaly, prompt moisturizing handle again, wait it is pending after, the first data acquisition module is again Collection, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, prompting are examined Whether the positive electricity conductance of off-axis envelope heater condensate is abnormal；
When SER positive electricity conductance is normal, prompt the hydrophobic positive electricity conductance of diagnosis gland heater whether abnormal；
If the hydrophobic positive conductivity anomaly of gland heater, prompt maintenance gland heater air-tightness, wait it is pending after, First data acquisition module resurveys, if λ1 +<X2, analysis indicating module export positive conductivity values, failure cause and processing Measure, diagnosis terminate；If X2≤λ1 +<X1, prompt the positive electricity conductance that diagnosis ABP (low-pressure feed heater system) is hydrophobic in next step It is whether abnormal；
If the hydrophobic positive electricity conductance of gland heater is normal, directly prompting diagnoses the hydrophobic positive electricity conductances of ABP in next step It is whether abnormal；
Analyze indicating module prompting maintenance ABP air-tightness, wait it is pending after, the first data acquisition module resurveys, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, new events are diagnosed as, And indicate that fault logging module is operated.
The embodiment of the present invention provides a kind of nuclear power plant's condensate system positive electricity conductance Indexes Abnormality applied to said apparatus Diagnostic method, comprise the following steps：
S1, the actual operating state according to nuclear power plant's unit, set controlling value X1 and the phase of condensate system positive electricity conductance Prestige value X2, and condensate system Na ion concentration limit value Y；
Positive electricity conductance at S2, the first positive electricity conductance table on-line checking condensate pump outlet main pipe, obtains the first positive electricity and leads Rate λ1 +, first data collecting module collected the first positive electricity conductance λ1 +, and by λ1 +It is sent to analysis indicating module, analysis instruction mould Block is to λ1 +Judged, if λ1 +>=X1, analysis indicating module prompting take measures to return in limit value as early as possible, if X2≤ λ1 +<X1, step S3 is gone to, if λ1 +<X2, then it represents that positive electricity conductance is normal, and diagnosis terminates；
When first positive electricity conductance table is normal, prompt whether diagnosis ion exchange column fails, if ion exchange column is effective, turn To step S3；If ion exchange column fail, prompt change ion exchange column, wait it is pending after, the first positive electricity conductance table is again The λ measured1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, turn To step S3；
When first positive electricity conductance table is abnormal, analysis indicating module prompting maintenance the first positive electricity conductance table, wait it is pending after, First data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures, diagnosis knot Beam, if X2≤λ1 +<X1, further diagnose whether ion exchange column fails, if ion exchange column is effective, go to step S3； If ion exchange column fails, prompt to change ion exchange column, wait it is pending after, λ that the first positive electricity conductance table measures again1 +< X2, then positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, go to step S3；
S3, the second positive electricity conductance table on-line checking VVP positive electricity conductance, obtain the second positive electricity conductance λ2 +, the second data adopt Collect module and gather the second positive electricity conductance λ2 +, and by λ2 +Analysis indicating module is sent to, analysis indicating module is to λ2 +Judged, If λ2 +Normally, then step S4 is directly carried out, if λ2 +It is abnormal, then it represents that VVP steam is unqualified, prompts to increase steam generation Device SG blowdown flow rate, the first data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and place Reason measure, diagnosis terminate, if X2≤λ1 +<X1, go to step S4；
S4, sodium table on-line checking CEX Na ion concentration, the 4th data collecting module collected Na ion concentration, and by sodium Ion concentration is sent to analysis indicating module, and analysis indicating module is judged Na ion concentration, if Na ion concentration>Y, Go to step S5；If Na ion concentration≤Y, whether analysis indicating module prompting diagnosis CEX pipeline sealing is good；
CEX pipeline sealing it is bad when, prompt maintenance CEX pipeline, wait it is pending after, the first data acquisition module is again Collection, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, then carry Show whether good and SER the positive electricity conductance of diagnosis condenser sealing is abnormal；
During CEX pipeline good seal, directly whether good and SER the positive electricity conductance of prompting diagnosis condenser sealing is No exception；
When condenser sealing is bad, the valve state that is connected with vacuum system of analysis indicating module prompting maintenance, at wait After reason, the first data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures； If X2≤λ1 +<X1, prompt further diagnosis condenser supercooling degree whether excessive；
During condenser good seal, directly whether prompting diagnosis condenser supercooling degree is excessive；
If condenser supercooling spend greatly, analysis indicating module prompting adjustment condenser supercooling degree, wait it is pending after, first Data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures, and diagnosis terminates； If X2≤λ1 +<X1, prompt further diagnosis SER pipelines sealing whether good；
If condenser supercooling degree is normal, whether directly prompting diagnosis SER pipelines sealing is good；SER pipelines to be checked are each After valve state and processing, the first data acquisition module resurveys, if λ1 +<X2, analysis indicating module output positive electricity conductance number Value, failure cause and treatment measures, diagnosis terminate；If X2≤λ1 +<X1, analysis indicating module is diagnosed as new events, and indicates event Hinder logging modle record fault detail content；
During SER positive conductivity anomaly, analysis indicating module prompting moisturizing handle again, wait it is pending after, the first data Acquisition module resurveys, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤ λ1 +<X1, prompt the hydrophobic positive electricity conductance of diagnosis gland heater whether abnormal；
When SER positive electricity conductance is normal, prompt the hydrophobic positive electricity conductance of diagnosis gland heater whether abnormal；
If the hydrophobic positive conductivity anomaly of gland heater, analysis indicating module prompting maintenance gland heater is airtight Property, wait it is pending after, the first data acquisition module resurveys, if λ1 +<X2, the positive conductivity values of analysis indicating module output, Failure cause and treatment measures, diagnosis terminate；If X2≤λ1 +<X1, prompt the positive electricity conductance that diagnosis ABP is hydrophobic in next step whether different Often；
If the hydrophobic positive electricity conductance of gland heater is normal, directly prompting diagnoses the hydrophobic positive electricity conductances of ABP in next step It is whether abnormal；
Analyze indicating module prompting maintenance ABP air-tightness, wait it is pending after, the first data acquisition module resurveys, if λ1 +<X2, analysis indicating module export positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, Analysis indicating module is diagnosed as new events, and indicates that fault logging module records fault detail content；
S5, four the 3rd positive electricity conductance table on-line checking condenser pipings positive electricity conductance, obtain the 3rd positive electricity conductance λ3 +, The positive electricity conductance λ of 3rd data collecting module collected the 3rd3 +, and by λ3 +Analysis indicating module is sent to, analysis indicating module is to λ3 + Judged, if analysis indicate that module judges the λ that wherein one or more the 3rd positive electricity conductance tables measure3 +>=X1, then basis Result of determination determines Steam Condenser Leak point, and prompts to overhaul Steam Condenser Leak point；After the completion of Awaiting Overhaul, the first data acquisition module Resurvey, if λ1 +<X2, positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, Analysis indicating module is diagnosed as new events, and indicates that fault logging module records fault detail content.
If being diagnosed as new events, after staff's Artificial Diagnosis goes out result, diagnosis algorithm new corresponding to the result is added Enter into the above method, form a more perfect new diagnostic process.
Those skilled in the art can carry out various modifications and variations to the embodiment of the present invention, if these modifications and change Type is within the scope of the claims in the present invention and its equivalent technologies, then these modifications and variations are also in protection scope of the present invention Within.
The prior art that the content not being described in detail in specification is known to the skilled person.

Claims (10)

  1. A kind of 1. nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device, it is characterised in that：The device includes one First positive electricity conductance table, a second positive electricity conductance table, four the 3rd positive electricity conductance tables, a sodium table, an analysis instruction mould Block, a fault logging module, and the first data acquisition module being connected with the first positive electricity conductance table and the second positive electricity conductance The second connected data acquisition module of table, the 3rd data acquisition module being connected with four the 3rd positive electricity conductance tables and sodium table The 4th connected data acquisition module, it is described analysis indicating module respectively with the first data acquisition module, the second data acquisition module Block, the 3rd data acquisition module, the 4th data acquisition module, fault logging module are connected, wherein, the first positive electricity conductance table, Sodium epitope exports main pipe in condensate pump, and the second positive electricity conductance epitope is in main steam system pipeline, four the 3rd positive electricity conductance tables Condenser piping is respectively positioned on, each 3rd positive electricity conductance table corresponds to Steam Condenser Leak point at one；
    The first positive electricity conductance table is used for：Positive electricity conductance at on-line checking condensate pump outlet main pipe, obtains the first positive electricity Conductance λ1 +；
    First data acquisition module is used for：Gather the first positive electricity conductance λ1 +, and by λ1 +It is sent to analysis indicating module；
    The second positive electricity conductance table is used for：On-line checking VVP (main steam system) positive electricity conductance, obtain the second positive electricity conductance λ2 +；
    Second data acquisition module is used for：Gather the second positive electricity conductance λ2 +, and by λ2 +It is sent to analysis indicating module；
    The 3rd positive electricity conductance table is used for：The positive electricity conductance of on-line checking condenser piping, obtain the 3rd positive electricity conductance λ3 +；
    3rd data acquisition module is used for：Gather the 3rd positive electricity conductance λ3 +, and by λ3 +It is sent to analysis indicating module；
    The sodium table is used for：On-line checking CEX (condensate system) Na ion concentration；
    4th data acquisition module is used for：Na ion concentration is gathered, and Na ion concentration is sent to analysis indicating module；
    The analysis indicating module is used for：
    According to the actual operating state of nuclear power plant's unit, the controlling value X1 and desired value X2 of condensate system positive electricity conductance are set, And condensate system Na ion concentration limit value Y；
    To λ1 +Judged, if λ1 +>=X1, prompt to take measures to return in limit value as early as possible, if X2≤λ1 +<X1, instruction Second data acquisition module is operated, if λ1 +<X2, then it represents that positive electricity conductance is normal, and diagnosis terminates；
    To λ2 +Judged, if λ2 +Normally, then directly the 4th data acquisition module of instruction is operated, if λ2 +It is abnormal, then Represent that VVP steam is unqualified, prompt to increase steam generator SG blowdown flow rate, the first data acquisition module resurveys, if λ1 +< X2, then positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, indicate the 4th data Acquisition module is operated；
    Na ion concentration is judged, if Na ion concentration>Y, the 3rd data acquisition module of instruction are operated；If sodium Whether ion concentration≤Y, analysis indicating module prompting diagnosis CEX pipeline sealing are good；
    CEX pipeline sealing it is bad when, prompt maintenance CEX pipeline, wait it is pending after, the first data acquisition module is adopted again Collection, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, then prompt Whether abnormal diagnose whether good and SER (conventional island desalination water distribution system) the positive electricity conductance of condenser sealing；
    During CEX pipeline good seal, whether directly whether good and SER the positive electricity conductance of prompting diagnosis condenser sealing is different Often；
    To λ3 +Judged, if it is decided that the λ that wherein one or more the 3rd positive electricity conductance tables measure3 +>=X1, then according to judgement As a result Steam Condenser Leak point is determined, and prompts to overhaul Steam Condenser Leak point；After the completion of Awaiting Overhaul, the first data acquisition module is again Collection, if λ1 +<X2, positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, diagnosis For new events, and indicate that fault logging module is operated；
    The fault logging module is used for：Record fault detail content.
  2. 2. nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device as claimed in claim 1, it is characterised in that institute Analysis indicating module is stated to be additionally operable to：
    When the first positive electricity conductance table is normal, prompt whether diagnosis ion exchange column fails, if ion exchange column is effective, refer to Show that the second data acquisition module is operated；If ion exchange column fail, prompt change ion exchange column, wait it is pending after, The λ that the first positive electricity conductance table measures again1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, diagnosed Terminate, if X2≤λ1 +<X1, the second data acquisition module of instruction are operated.
  3. 3. nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device as claimed in claim 1, it is characterised in that institute Analysis indicating module is stated to be additionally operable to：
    When the first positive electricity conductance table is abnormal, analysis indicating module prompting the first positive electricity conductance table of maintenance, wait it is pending after, First data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures, diagnosis knot Beam, if X2≤λ1 +<X1, further diagnose whether ion exchange column fails, if ion exchange column is effective, indicate the second data Acquisition module is operated；If ion exchange column fail, prompt change ion exchange column, wait it is pending after, it is described first sun The λ that electrical conductivity table measures again1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2 ≤λ1 +<X1, the second data acquisition module of instruction are operated.
  4. 4. nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device as claimed in claim 1, it is characterised in that institute Analysis indicating module is stated to be additionally operable to：
    When condenser sealing is bad, the valve state of prompting maintenance to be connected with vacuum system, wait it is pending after, described first Data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures；If X2≤ λ1 +<X1, prompt further diagnosis condenser supercooling degree whether excessive；
    During the condenser good seal, directly whether prompting diagnosis condenser supercooling degree is excessive；
    If condenser supercooling spend greatly, prompt adjustment condenser supercooling degree, wait it is pending after, the first data acquisition module is again Collection, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, carry Show further whether the sealing of diagnosis SER pipelines is good；
    If condenser supercooling degree is normal, whether directly prompting diagnosis SER pipelines sealing is good；Each valve of SER pipelines to be checked After state and processing, the first data acquisition module resurveys, if λ1 +<X2, export positive conductivity values, failure cause and processing Measure, diagnosis terminate；If X2≤λ1 +<X1, analysis indicating module are diagnosed as new events, and indicate that fault logging module carries out work Make.
  5. 5. nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic device as claimed in claim 1, it is characterised in that：Institute Analysis indicating module is stated to be additionally operable to：
    During the positive conductivity anomaly of the SER, prompt moisturizing handle again, wait it is pending after, the first data acquisition module is again Collection, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, prompting are examined Whether the positive electricity conductance of off-axis envelope heater condensate is abnormal；
    When the positive electricity conductance of the SER is normal, prompt the hydrophobic positive electricity conductance of diagnosis gland heater whether abnormal；
    If the hydrophobic positive conductivity anomaly of gland heater, prompt maintenance gland heater air-tightness, wait it is pending after, first Data acquisition module resurveys, if λ1 +<X2, the analysis indicating module export positive conductivity values, failure cause and processing Measure, diagnosis terminate；If X2≤λ1 +<X1, prompt the positive electricity conductance that diagnosis ABP (low-pressure feed heater system) is hydrophobic in next step It is whether abnormal；
    If the hydrophobic positive electricity conductance of gland heater is normal, whether directly prompting diagnoses the hydrophobic positive electricity conductances of ABP in next step It is abnormal；
    Analyze indicating module prompting maintenance ABP air-tightness, wait it is pending after, the first data acquisition module resurveys, if λ1 +< X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, new events are diagnosed as, and referred to Show that fault logging module is operated.
  6. A kind of 6. condensate system positive electricity conductance Indexes Abnormality diagnosis side of nuclear power plant applied to device as claimed in claim 1 Method, it is characterised in that comprise the following steps：
    S1, the actual operating state according to nuclear power plant's unit, set the controlling value X1 and desired value of condensate system positive electricity conductance X2, and condensate system Na ion concentration limit value Y；
    Positive electricity conductance at S2, the first positive electricity conductance table on-line checking condensate pump outlet main pipe, obtains the first positive electricity conductance λ1 +, First data collecting module collected the first positive electricity conductance λ1 +, and by λ1 +Analysis indicating module is sent to, analysis indicating module is to λ1 + Judged, if λ1 +>=X1, analysis indicating module prompting takes measures to return in limit value as early as possible, if X2≤λ1 +<X1, Step S3 is gone to, if λ1 +<X2, then it represents that positive electricity conductance is normal, and diagnosis terminates；
    S3, the second positive electricity conductance table on-line checking VVP positive electricity conductance, obtain the second positive electricity conductance λ2 +, the second data acquisition module Block gathers the second positive electricity conductance λ2 +, and by λ2 +Analysis indicating module is sent to, analysis indicating module is to λ2 +Judged, if λ2 +Normally, then step S4 is directly carried out, if λ2 +It is abnormal, then it represents that VVP steam is unqualified, prompts to increase steam generator SG Blowdown flow rate, the first data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and processing and arrange Apply, diagnosis terminates, if X2≤λ1 +<X1, go to step S4；
    S4, sodium table on-line checking CEX Na ion concentration, the 4th data collecting module collected Na ion concentration, and by sodium ion Concentration is sent to analysis indicating module, and analysis indicating module is judged Na ion concentration, if Na ion concentration>Y, go to Step S5；If Na ion concentration≤Y, whether analysis indicating module prompting diagnosis CEX pipeline sealing is good；
    CEX pipeline sealing it is bad when, prompt maintenance CEX pipeline, wait it is pending after, the first data acquisition module is adopted again Collection, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, then prompt Whether abnormal diagnose whether good and SER the positive electricity conductance of condenser sealing；
    During CEX pipeline good seal, whether directly whether good and SER the positive electricity conductance of prompting diagnosis condenser sealing is different Often；
    S5, four the 3rd positive electricity conductance table on-line checking condenser pipings positive electricity conductance, obtain the 3rd positive electricity conductance λ3 +, the 3rd The positive electricity conductance λ of data collecting module collected the 3rd3 +, and by λ3 +Analysis indicating module is sent to, analysis indicating module is to λ3 +Carry out Judge, if analysis indicate that module judges the λ that wherein one or more the 3rd positive electricity conductance tables measure3 +>=X1, then according to judgement As a result Steam Condenser Leak point is determined, and prompts to overhaul Steam Condenser Leak point；After the completion of Awaiting Overhaul, the first data acquisition module is again Collection, if λ1 +<X2, positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, analysis Indicating module is diagnosed as new events, and indicates that fault logging module records fault detail content.
  7. 7. nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic method as claimed in claim 6, it is characterised in that step Suddenly procedure below is also included between S2 and step S3：
    When the first positive electricity conductance table is normal, prompt whether diagnosis ion exchange column fails, if ion exchange column is effective, turn To step S3；If ion exchange column fail, prompt change ion exchange column, wait it is pending after, the first positive electricity conductance table Again the λ measured1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +< X1, go to step S3.
  8. 8. nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic method as claimed in claim 6, it is characterised in that step Suddenly procedure below is also included between S2 and step S3：
    When the first positive electricity conductance table is abnormal, analysis indicating module prompting the first positive electricity conductance table of maintenance, wait it is pending after, First data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures, diagnosis knot Beam, if X2≤λ1 +<X1, further diagnose whether ion exchange column fails, if ion exchange column is effective, go to step S3； If ion exchange column fail, prompt change ion exchange column, wait it is pending after, what the first positive electricity conductance table measured again λ1 +<X2, then positive conductivity values, failure cause and treatment measures are exported, diagnosis terminates, if X2≤λ1 +<X1, go to step S3。
  9. 9. nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic method as claimed in claim 6, it is characterised in that step Suddenly procedure below is also included between S4 and step S5：
    When condenser sealing is bad, valve state that analysis indicating module prompting maintenance is connected with vacuum system, at wait After reason, first data acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and processing and arrange Apply；If X2≤λ1 +<X1, prompt further diagnosis condenser supercooling degree whether excessive；
    During the condenser good seal, directly whether prompting diagnosis condenser supercooling degree is excessive；
    If condenser supercooling spend greatly, analysis indicating module prompting adjustment condenser supercooling degree, wait it is pending after, the first data Acquisition module resurveys, if λ1 +<X2, then export positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, prompt further diagnosis SER pipelines sealing whether good；
    If condenser supercooling degree is normal, whether directly prompting diagnosis SER pipelines sealing is good；Each valve of SER pipelines to be checked After state and processing, the first data acquisition module resurveys, if λ1 +<X2, the analysis indicating module output positive electricity conductance number Value, failure cause and treatment measures, diagnosis terminate；If X2≤λ1 +<X1, analysis indicating module is diagnosed as new events, and indicates event Hinder logging modle record fault detail content.
  10. 10. nuclear power plant's condensate system positive electricity conductance Indexes Abnormality diagnostic method as claimed in claim 6, it is characterised in that Also include procedure below between step S4 and step S5：
    During the positive conductivity anomaly of the SER, it is described analysis indicating module prompting moisturizing handle again, wait it is pending after, first Data acquisition module resurveys, if λ1 +<X2, exports positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, prompt the hydrophobic positive electricity conductance of diagnosis gland heater whether abnormal；
    When the positive electricity conductance of the SER is normal, prompt the hydrophobic positive electricity conductance of diagnosis gland heater whether abnormal；
    If the hydrophobic positive conductivity anomaly of gland heater, the analysis indicating module prompting maintenance gland heater is airtight Property, wait it is pending after, the first data acquisition module resurveys, if λ1 +<X2, the analysis indicating module output positive electricity conductance number Value, failure cause and treatment measures, diagnosis terminate；If X2≤λ1 +<X1, the positive electricity conductance that diagnosis ABP is hydrophobic in next step is prompted to be No exception；
    If the hydrophobic positive electricity conductance of gland heater is normal, whether directly prompting diagnoses the hydrophobic positive electricity conductances of ABP in next step It is abnormal；
    Analyze indicating module prompting maintenance ABP air-tightness, wait it is pending after, the first data acquisition module resurveys, if λ1 +< X2, the analysis indicating module export positive conductivity values, failure cause and treatment measures, and diagnosis terminates；If X2≤λ1 +<X1, Analysis indicating module is diagnosed as new events, and indicates that fault logging module records fault detail content.
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