CN107195340A - It is a kind of based on method and system of the refined condensate treatment amount to Nuclear Power Station Condensers leakage detection - Google Patents
It is a kind of based on method and system of the refined condensate treatment amount to Nuclear Power Station Condensers leakage detection Download PDFInfo
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- CN107195340A CN107195340A CN201710332222.7A CN201710332222A CN107195340A CN 107195340 A CN107195340 A CN 107195340A CN 201710332222 A CN201710332222 A CN 201710332222A CN 107195340 A CN107195340 A CN 107195340A
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/002—Detection of leaks
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/017—Inspection or maintenance of pipe-lines or tubes in nuclear installations
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The present invention provides a kind of based on method of the refined condensate treatment amount to Nuclear Power Station Condensers leakage detection, including obtaining refined condensate treatment amount when opening a water-ring vacuum pump, and it is to be determined more than after predetermined threshold value, obtain refined condensate treatment amount when opening two water-ring vacuum pumps；The refined condensate treatment amount opened water-ring vacuum pump according to corresponding to respectively of getting and open two water-ring vacuum pumps, calculates condenser reclaimed water side leakage point when opening two water-ring vacuum pumps to the influence value of the influence value and vapour side leakage point of refined condensate treatment amount to refined condensate treatment amount；According to the water side leakage point calculated to the influence value and vapour side leakage point of refined condensate treatment amount to the influence value of refined condensate treatment amount, corresponding selection is from water side or vapour side to condenser progress leakage detection.Implement the present invention, can be time saving and energy saving by quickly judging that Steam Side of Condenser leak source and water side leakage point determine the leakage detection direction of condenser to refined condensate treatment amount.
Description
Technical field
Refined condensate treatment amount pair is based on the present invention relates to Nuclear Power Station Condensers system detectio technical field, more particularly to one kind
The method and system of Nuclear Power Station Condensers leakage detection.
Background technology
As shown in figure 1, Nuclear Power Station Condensers vacuum mechanism is main true by condenser, steam turbine, circulation, liquid-ring type
The parts such as empty pump, condensate pump and blast pipe are constituted, and are condensed for setting up and maintaining vacuum, cooling exhaust steam in steam turbine, collect
Water and extraction incondensable gas.When researcher has found that Nuclear Power Station Condensers are in negative pressure state, extraneous air, other systems
Heavy-oxygen-enriched water etc. inevitably will leak into condenser so that condensate contains a certain amount of dissolving in condenser
Oxygen, once condensate dissolved oxygen content is too high, then can produce oxygen to condenser carbon steel body and interior shelf, secondary circuit equipment
Change corrosion, carry out equipment corrosion to condenser and secondary coolant circuit system equipment belt and damage risk.Even, once oxide etch forms oxygen
Compound, then oxide can enter nuclear power station steam generator with feedwater, cause steam generator because amount of sludge increase and influence biography
Heat, so as to bring damage risk to heat-transfer pipe.Therefore, nuclear power station has strict requirements to refined condensate treatment amount, water-soluble condensing
Oxygen amount needs to carry out leakage detection to condenser when being more than a threshold value amount.
But, Nuclear Power Station Condensers vacuum mechanism is very huge, causes leakage detection workload big and cumbersome, searches the difficulty of leak source
Degree is also very big, therefore the leakage detection work to Nuclear Power Station Condensers vacuum mechanism is focused primarily upon on condenser at present.According to reality
Experience is trampled, condenser vacuum side is generally divided into vapour side and water side two large divisions, and water side includes condenser hotwell, condensate
Pump intake pipeline section etc., vapour side includes hot well above section again.Due at present can not quantitative assessment vapour side and water side leakage point to solidifying
Bear water the influence level of dissolved oxygen amount so that still need to carry out comprehensive leakage detection to Steam Side of Condenser and water side during leakage detection, it can be seen that,
If can quickly judge the influence size of vapour side leakage point and water side leakage point to refined condensate treatment amount, thing can be played during leakage detection
The effect of half work(times.
The content of the invention
Technical problem to be solved of the embodiment of the present invention is solidifying to nuclear power station based on refined condensate treatment amount there is provided one kind
The method and system of vapour device leakage detection, can be by quickly judging Steam Side of Condenser leak source and water side leakage point to refined condensate treatment amount
It is time saving and energy saving to determine the leakage detection direction of condenser.
In order to solve the above-mentioned technical problem, it is solidifying to nuclear power station based on refined condensate treatment amount the embodiments of the invention provide one kind
The method of vapour device leakage detection, for the condenser in Nuclear Power Station Condensers mechanism, and the condenser passes through the condensate that prestores
Water outlet side and vapour side are divided, methods described includes：
Obtain solidifying in the condenser when water-ring vacuum pump stable operation is opened under nuclear power generating sets steady operational status
Bear water dissolved oxygen amount, and it is to be determined it is described get one water-ring vacuum pump stable operation of unlatching when condenser in condensate
Dissolved oxygen amount is more than after predetermined threshold value, obtains and two water-ring vacuum pump Simultaneous Stabilization fortune are opened under nuclear power generating sets steady operational status
Refined condensate treatment amount during row in the condenser；
The stable fortune of a water-ring vacuum pump is opened according to being corresponded to respectively under the nuclear power generating sets steady operational status got
With respective refined condensate treatment amount in condenser when opening two water-ring vacuum pump Simultaneous Stabilizations operations during row, unlatching is calculated
During the operation of two water-ring vacuum pump Simultaneous Stabilizations the condenser reclaimed water side leakage point to the influence value of refined condensate treatment amount and
Influence value of the vapour side leakage point to refined condensate treatment amount；
According to condenser reclaimed water side leakage point during two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated to solidifying
The influence value of influence value and vapour side leakage point to refined condensate treatment amount of dissolved oxygen amount is born water, corresponding selection is from water side or vapour side to institute
State condenser and carry out leakage detection.
Wherein, according to formula D1=D0-2*（D0-D0´）, calculate two water-ring vacuum pump Simultaneous Stabilization operations of unlatching
Influence value D1 of the Shi Suoshu condenser reclaimed waters side leakage point to refined condensate treatment amount；Wherein, D0 is the unlatching one got
Refined condensate treatment amount during platform water-ring vacuum pump stable operation in condenser, D0 ' is described two water rings of unlatching got
Refined condensate treatment amount when formula vavuum pump Simultaneous Stabilization is run in condenser.
Wherein, according to formula D2=D0-D0 ', calculate described solidifying during two water-ring vacuum pump Simultaneous Stabilization operations of unlatching
Influence value D2 of the vapour side leakage point to refined condensate treatment amount in vapour device.
Wherein, methods described further comprises：
According to formula D3=2*（D0-D0´）, vapour in condenser when calculating one water-ring vacuum pump stable operation of unlatching
Influence value D3 of the side leakage point to refined condensate treatment amount.
Wherein, condenser reclaimed water during two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated described in the basis
Side leakage point is to the influence value of the influence value and vapour side leakage point of refined condensate treatment amount to refined condensate treatment amount, and corresponding selection is from water
The step of side or vapour side carry out leakage detection to the condenser specifically includes：
When two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated, condenser reclaimed water side leakage point is to condensing
Vapour side leakage point when the influence value of water-soluble oxygen amount is more than two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated
To the influence value of refined condensate treatment amount, then select to carry out leakage detection to the condenser from water side；
When two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated, condenser reclaimed water side leakage point is to condensing
Vapour side leakage point when the influence value of water-soluble oxygen amount is less than two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated
To the influence value of refined condensate treatment amount, then select to carry out leakage detection to the condenser from vapour side.
The embodiment of the present invention additionally provides a kind of refined condensate treatment amount that is based on to Nuclear Power Station Condensers leakage detection system, the system
System includes：
Acquiring unit, condensing when a water-ring vacuum pump stable operation is opened under nuclear power generating sets steady operational status for obtaining
Refined condensate treatment amount in device, and it is to be determined it is described get one water-ring vacuum pump stable operation of unlatching when condenser in
Refined condensate treatment amount be more than predetermined threshold value after, obtain nuclear power generating sets steady operational status under open two water-ring vacuum pumps it is same
When stable operation when the condenser in refined condensate treatment amount；
Computing unit, for according to corresponding to one liquid-ring type of unlatching under the nuclear power generating sets steady operational status got respectively
With respective refined condensate treatment in condenser when opening two water-ring vacuum pump Simultaneous Stabilizations operations during vavuum pump stable operation
Amount, the condenser reclaimed water side leakage point is to refined condensate treatment when calculating two water-ring vacuum pump Simultaneous Stabilization operations of unlatching
Influence value of the influence value and vapour side leakage point of amount to refined condensate treatment amount；
Leakage detection selecting unit, condenser when two water-ring vacuum pump Simultaneous Stabilizations of unlatching for being calculated according to are run
Reclaimed water side leakage point is to the influence value and vapour side leakage point of refined condensate treatment amount to the influence value of refined condensate treatment amount, corresponding selection
Leakage detection is carried out to the condenser from water side or vapour side.
Wherein, according to formula D1=D0-2*（D0-D0´）, calculate two water-ring vacuum pump Simultaneous Stabilization operations of unlatching
Influence value D1 of the Shi Suoshu condenser reclaimed waters side leakage point to refined condensate treatment amount；Wherein, D0 is the unlatching one got
Refined condensate treatment amount during platform water-ring vacuum pump stable operation in condenser, D0 ' is described two water rings of unlatching got
Refined condensate treatment amount when formula vavuum pump Simultaneous Stabilization is run in condenser.
Wherein, according to formula D2=D0-D0 ', calculate described solidifying during two water-ring vacuum pump Simultaneous Stabilization operations of unlatching
Influence value D2 of the vapour side leakage point to refined condensate treatment amount in vapour device.
Wherein, according to formula D3=2*（D0-D0´）, calculate described solidifying during one water-ring vacuum pump stable operation of unlatching
Influence value D3 of the vapour side leakage point to refined condensate treatment amount in vapour device.
Wherein, the leakage detection selecting unit includes：
First choice module, in the condenser when two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated
Water side leakage point is more than described two water-ring vacuum pump Simultaneous Stabilizations of unlatching calculated to the influence value of refined condensate treatment amount
Vapour side leakage point then selects to carry out leakage detection to the condenser from water side to the influence value of refined condensate treatment amount during operation；
Second selecting module, in the condenser when two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated
Water side leakage point is less than described two water-ring vacuum pump Simultaneous Stabilizations of unlatching calculated to the influence value of refined condensate treatment amount
Vapour side leakage point then selects to carry out leakage detection to the condenser from vapour side to the influence value of refined condensate treatment amount during operation.
Implement the embodiment of the present invention, have the advantages that：
The embodiment of the present invention can draw the distribution situation of dissolved oxygen amount in condenser condensed water exactly, and quantitatively draw condensing
Device vapour side and water side leak the influence size to refined condensate treatment amount, are that leakage detection work specify that search direction, can quickly position
Defect direction, saving leakage detection time.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, according to
These accompanying drawings obtain other accompanying drawings and still fall within scope of the invention.
Fig. 1 is the system architecture connection diagram of Nuclear Power Station Condensers mechanism in the prior art；
Fig. 2 is provided in an embodiment of the present invention a kind of based on flow of the refined condensate treatment amount to the method for Nuclear Power Station Condensers leakage detection
Figure；
Fig. 3 a kind of is shown the structure of Nuclear Power Station Condensers leakage detection system to be provided in an embodiment of the present invention based on refined condensate treatment amount
It is intended to.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
It is described in detail on step ground.
As shown in Fig. 2 in the embodiment of the present invention there is provided one kind Nuclear Power Station Condensers are looked into based on refined condensate treatment amount
The method of leakage, for the condenser in Nuclear Power Station Condensers mechanism, and condenser divides water outlet side by the condensate prestored
With vapour side, this method is that the water-ring vacuum pump not waited by opening quantity every time extracts vapour side incondensable gas to change condensing
Device internal pressure realizes the change of water side refined condensate treatment amount distribution situation, specifically includes：
Condenser when opening a water-ring vacuum pump stable operation under step S1, acquisition nuclear power generating sets steady operational status
In refined condensate treatment amount, and it is to be determined it is described get one water-ring vacuum pump stable operation of unlatching when condenser in
Refined condensate treatment amount is more than after predetermined threshold value, obtains and opens two water-ring vacuum pumps simultaneously under nuclear power generating sets steady operational status
Refined condensate treatment amount during stable operation in the condenser；
Detailed process is, in nuclear power station normal course of operation, opens a water-ring vacuum pump operation and extracts the non-condensing gas in vapour side
Body can maintain vacuum to adjust the size of the hollow qi leel pressure of condenser, so as to keep refined condensate treatment amount in condenser to be less than in advance
If threshold value（Such as 3ppb）Come avoid equipment corrosion damage and heat-transfer pipe damage risk, but once after nuclear power station hesitation again
When starting normal operation, reopen a water-ring vacuum pump operation and extract condensate in vapour side incondensable gas, condenser
Dissolved oxygen amount just can not necessarily be less than predetermined threshold value, it is therefore desirable to increase by one i.e. two water-ring vacuum pump while running to continue
Refined condensate treatment amount in condenser is adjusted, but under two water-ring vacuum pumps simultaneously running situation, condensate in condenser
Dissolved oxygen amount still can not necessarily be less than predetermined threshold value, and this is accomplished by carrying out condenser leakage detection, and further condenser is carried out
Rectification, waits to recover the water-ring vacuum pump operation of nuclear power station originally after the completion of rectifying and improving.
Refined condensate treatment amount is mainly made up of two parts in condenser, and one is due to that condenser has air partial pressure, according to
There is part dissolved oxygen in Dalton's law (of partial pressures) and Henry dissolved oxygen laws, condensate；Two be that condenser water side has leak source, empty
Gas is directly contacted with condensate, causes the outside heavy-oxygen-enriched water such as the increase of condensate dissolved oxygen or condensate pump shaft seal water to enter condensate
Dissolved oxygen is caused to increase.According to Henry dissolved oxygen laws, condense dissolved oxygen in water and be directly proportional to air partial pressure, i.e., by adjusting condensing
The size of device air partial pressure can change the size of condenser dissolved oxygen.It is total well known, adjust the size of condenser air partial pressure
Realized by water-ring vacuum pump, the water-ring vacuum pump belongs to displacement pump, under conditions of unit operating mode is without significantly changing, very
Suction temperature, work water temperature and the water ring thickness of empty pump are held essentially constant, by the equation of gas stateCan
Know, air-breathing mass flow is substantially proportional to pressure of inspiration(Pi), i.e.,：。
Under nuclear power generating sets steady operational status, when opening a water-ring vacuum pump stable operation, air in condenser
Partial pressure is Ps, and refined condensate treatment amount is D0；Now it is accomplished by judging whether refined condensate treatment amount D0 is more than predetermined threshold value, if
It is then to illustrate the problematic appearance of condenser, otherwise illustrates that condenser is out of question.
A water-ring vacuum pump refined condensate treatment amount D0 is being opened more than in the case of predetermined threshold value（I.e. condenser is asked
Topic occurs）, one water-ring vacuum pump of unlatching need to be increased, and when obtaining two water-ring vacuum pump Simultaneous Stabilization operations of unlatching,
The hollow qi leel pressure of condenser is Ps ', and refined condensate treatment amount is D0 ', to be distributed based on the refined condensate treatment amount in condenser that calculates
Situation to carry out leakage detection and rectification to condenser.
One liquid-ring type of unlatching is corresponded under step S2, the nuclear power generating sets steady operational status got according to respectively true
With respective refined condensate treatment amount in condenser when opening two water-ring vacuum pump Simultaneous Stabilizations operations during empty pump stable operation,
The condenser reclaimed water side leakage point is to refined condensate treatment amount when calculating two water-ring vacuum pump Simultaneous Stabilization operations of unlatching
Influence value and vapour side leakage point to the influence value of refined condensate treatment amount；
Detailed process is, by a water-ring vacuum pump stable operation when refined condensate treatment amount be D0 and to open two liquid-ring types true
Refined condensate treatment amount is D0 ' during empty pump Simultaneous Stabilization operation, and according to refined condensate treatment amount after the 2nd water-ring vacuum pump of startup
Variation relation, obtain water outlet side leakage point on refined condensate treatment amount influence relational expression：D1=D0-2*（D0-D0´）；Wherein, D1 is
Influence value of the condenser reclaimed water side leakage point to refined condensate treatment amount when opening two water-ring vacuum pump Simultaneous Stabilization operations.
Meanwhile, by a water-ring vacuum pump stable operation when refined condensate treatment amount be D0 and open two liquid-ring type vacuum
Refined condensate treatment amount is D0 ' when pump Simultaneous Stabilization is run, and can derive one water-ring vacuum pump operation of increase, then water side is coagulated
Dissolved oxygen amount decrement value is born water for D0-D0 ', that is to say, that vapour in condenser when opening two water-ring vacuum pump Simultaneous Stabilization operations
Influence value D2=D0-D0 ' of the side leakage point to refined condensate treatment amount.
Further, the sky it can be seen from above-mentioned reference gas state equation during a water-ring vacuum pump operation
Qi leel pressure is twice of two water-ring vacuum pump operation space-time qi leel pressures, i.e. Ps=2* Ps '.Therefore a liquid-ring type is opened true
Influence value D3=2* of the vapour side leakage point to refined condensate treatment amount in condenser during empty pump Simultaneous Stabilization operation（D0-D0´）.
Condenser reclaimed water side when step S3, the two water-ring vacuum pump Simultaneous Stabilization operations of unlatching calculated according to
Leakage point is to the influence value of the influence value and vapour side leakage point of refined condensate treatment amount to refined condensate treatment amount, and corresponding selection is from water side
Or vapour side carries out leakage detection to the condenser.
Detailed process is that condenser reclaimed water side leakage point is to solidifying when opening two water-ring vacuum pump Simultaneous Stabilization operations
The influence value for bearing water dissolved oxygen amount is more than and corresponding vapour side leakage point is to the influence value of refined condensate treatment amount, then selects from water side pair
Condenser carries out leakage detection；Conversely, then selecting to carry out leakage detection to condenser from vapour side.
To a kind of application based on refined condensate treatment amount to the method for Nuclear Power Station Condensers leakage detection in the embodiment of the present invention
Scene is described further：
For example in one embodiment, 1 liquid-ring type is true in 3 water-ring vacuum pumps of certain nuclear power station outfit, normal course of operation
Empty pump operation can maintain vacuum, and keep refined condensate treatment amount to be less than 3ppb；
When normal operation is again started up after the nuclear power station hesitation, now 1 water-ring vacuum pump operation, refined condensate treatment amount
About 19ppb（D0）, the limit value requirement more than nuclear power station to refined condensate treatment amount（3ppb）, it is necessary to carry out leakage detection to condenser；
Start the 2nd water-ring vacuum pump, refined condensate treatment amount falls to approximately 13ppb（D0´）；
It is about D0-2* on the influence of refined condensate treatment amount to calculate water outlet side leakage point respectively（D0-D0´）=19-2*（19-13）=
7ppb；During 1 water-ring vacuum pump operation, influence of the vapour side leakage point to refined condensate treatment amount is about 2*（D0-D0´）=2*
（19-13）=12ppb；During 2 water-ring vacuum pump operations, influence of the vapour side leakage point to refined condensate treatment amount is about（D0-D0
´）=19-13=6ppb；
When can be seen that 2 water-ring vacuum pumps operations of nuclear power station maintenance according to above-mentioned result of calculation, water side and vapour side leakage point
Influence to refined condensate treatment amount is respectively 7ppb and 6ppb；Now water side influence value is bigger than normal, first to condenser water side leakage detection,
It was found that condenser bottom discharge valves leakage, air leaks into condenser, condensate oxygen content is influenceed；This valve is handled
Afterwards, condensate oxygen content falls to approximately 6ppb, i.e. this valve leak of water side to influenceing about 13-6=7ppb to refined condensate treatment amount；
With influenceing the result of calculation contrast of relational expression to show that water side leakage point is to condensing to refined condensate treatment amount with water side leakage point
The influence of water-soluble oxygen amount has been found, and remaining leak source is vapour side；As follow-up leakage detection reduces direction, only searches vapour side leakage point
, save the leakage detection time.
For example in another embodiment, when certain nuclear power station is normally run, 1 water-ring vacuum pump operation condenses water-soluble
Oxygen amount is about 9.5ppb（D0）, the limit value requirement more than nuclear power station to refined condensate treatment amount（3ppb）, it is necessary to be carried out to condenser
Leakage detection；Start the 2nd water-ring vacuum pump, refined condensate treatment amount falls to approximately 7ppb（D0´）；
It is about D0-2* on the influence of refined condensate treatment amount to calculate water outlet side leakage point respectively（D0-D0´）=9.5-2*（9.5-7）=
4.5ppb；During 1 water-ring vacuum pump operation, influence of the vapour side leakage point to refined condensate treatment amount is about 2*（D0-D0´）=2*
（9.5-7）=5ppb；During 2 water-ring vacuum pump operations, influence of the vapour side leakage point to refined condensate treatment amount is about（D0-D0´）
=9.5-7=2.5ppb；
When can be seen that 2 water-ring vacuum pumps operations of nuclear power station maintenance according to above-mentioned result of calculation, water side and vapour side leakage point
Influence to refined condensate treatment amount is respectively 4.5ppb and 2.5ppb；Now water side leakage point influence value is bigger than normal, first to condensing
Device water side leakage detection, it is found that the oxygen-enriched water pipeline in condensate pump shaft seal water side has string water phenomenon, close oxygen-enriched water pipeline, condense water oxygen
Content falls to approximately 3ppb, i.e. this pipeline leakage of water side to influenceing about 7-3=4ppb to refined condensate treatment amount；With being leaked with water side
Point influences the result of calculation contrast of relational expression to draw on refined condensate treatment amount, shadow of the water side leakage point to refined condensate treatment amount
Sound has been found, and remaining leak source is vapour side, quickly located defective locations, the problem of condensate oxygen content is high is solved in time.
As shown in figure 3, in the embodiment of the present invention there is provided one kind Nuclear Power Station Condensers are looked into based on refined condensate treatment amount
Leakage system, the system includes：
Acquiring unit 110, when opening a water-ring vacuum pump stable operation under nuclear power generating sets steady operational status for obtaining
Refined condensate treatment amount in condenser, and it is to be determined it is described get one water-ring vacuum pump stable operation of unlatching when condensing
Refined condensate treatment amount in device is more than after predetermined threshold value, obtains and two liquid-ring type vacuum are opened under nuclear power generating sets steady operational status
Refined condensate treatment amount when pump Simultaneous Stabilization is run in the condenser；
Computing unit 120, for according to corresponding to one water of unlatching under the nuclear power generating sets steady operational status got respectively
With respective condensate in condenser when opening two water-ring vacuum pump Simultaneous Stabilizations operations during ring vacuum pumps stable operation
Dissolved oxygen amount, the condenser reclaimed water side leakage point is to condensate when calculating two water-ring vacuum pump Simultaneous Stabilization operations of unlatching
Influence value of the influence value and vapour side leakage point of dissolved oxygen amount to refined condensate treatment amount；
Leakage detection selecting unit 130, two water-ring vacuum pump Simultaneous Stabilizations of unlatching for being calculated according to are solidifying when running
Vapour device reclaimed water side leakage point is to the influence value and vapour side leakage point of refined condensate treatment amount to the influence value of refined condensate treatment amount, correspondence
Selection carries out leakage detection from water side or vapour side to the condenser.
Wherein, according to formula D1=D0-2*（D0-D0´）, calculate two water-ring vacuum pump Simultaneous Stabilization operations of unlatching
Influence value D1 of the Shi Suoshu condenser reclaimed waters side leakage point to refined condensate treatment amount；Wherein, D0 is the unlatching one got
Refined condensate treatment amount during platform water-ring vacuum pump stable operation in condenser, D0 ' is described two water rings of unlatching got
Refined condensate treatment amount when formula vavuum pump Simultaneous Stabilization is run in condenser.
Wherein, according to formula D2=D0-D0 ', calculate described solidifying during two water-ring vacuum pump Simultaneous Stabilization operations of unlatching
Influence value D2 of the vapour side leakage point to refined condensate treatment amount in vapour device.
Wherein, according to formula D3=2*（D0-D0´）, calculate described solidifying during one water-ring vacuum pump stable operation of unlatching
Influence value D3 of the vapour side leakage point to refined condensate treatment amount in vapour device.
Wherein, the leakage detection selecting unit 130 includes：
First choice module 1301, for the condensing when two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated
Device reclaimed water side leakage point is more than described two water-ring vacuum pumps of unlatching calculated simultaneously to the influence value of refined condensate treatment amount
Vapour side leakage point then selects to carry out leakage detection to the condenser from water side to the influence value of refined condensate treatment amount during stable operation；
Second selecting module 1302, for the condensing when two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated
Device reclaimed water side leakage point is less than described two water-ring vacuum pumps of unlatching calculated simultaneously to the influence value of refined condensate treatment amount
Vapour side leakage point then selects to carry out leakage detection to the condenser from vapour side to the influence value of refined condensate treatment amount during stable operation.
Implement the embodiment of the present invention, have the advantages that：
The embodiment of the present invention can draw the distribution situation of dissolved oxygen amount in condenser condensed water exactly, and quantitatively draw condensing
Device vapour side and water side leak the influence size to refined condensate treatment amount, are that leakage detection work specify that search direction, can quickly position
Defect direction, saving leakage detection time.
It is worth noting that, in said system embodiment, each included system unit simply enters according to function logic
What row was divided, but above-mentioned division is not limited to, as long as corresponding function can be realized；In addition, each functional unit
Specific name is also only to facilitate mutually distinguish, the protection domain being not intended to limit the invention.
Can be with one of ordinary skill in the art will appreciate that realizing that all or part of step in above-described embodiment method is
The hardware of correlation is instructed to complete by program, described program can be stored in a computer read/write memory medium,
Described storage medium, such as ROM/RAM, disk, CD.
Above disclosure is only preferred embodiment of present invention, can not limit the right model of the present invention with this certainly
Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (10)
1. it is a kind of based on method of the refined condensate treatment amount to Nuclear Power Station Condensers leakage detection, for solidifying in Nuclear Power Station Condensers mechanism
On vapour device, and the condenser divides water outlet side and vapour side by the condensate prestored, it is characterised in that methods described includes：
Obtain solidifying in the condenser when water-ring vacuum pump stable operation is opened under nuclear power generating sets steady operational status
Bear water dissolved oxygen amount, and it is to be determined it is described get one water-ring vacuum pump stable operation of unlatching when condenser in condensate
Dissolved oxygen amount is more than after predetermined threshold value, obtains and two water-ring vacuum pump Simultaneous Stabilization fortune are opened under nuclear power generating sets steady operational status
Refined condensate treatment amount during row in the condenser；
The stable fortune of a water-ring vacuum pump is opened according to being corresponded to respectively under the nuclear power generating sets steady operational status got
With respective refined condensate treatment amount in condenser when opening two water-ring vacuum pump Simultaneous Stabilizations operations during row, unlatching is calculated
During the operation of two water-ring vacuum pump Simultaneous Stabilizations the condenser reclaimed water side leakage point to the influence value of refined condensate treatment amount and
Influence value of the vapour side leakage point to refined condensate treatment amount；
According to condenser reclaimed water side leakage point during two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated to solidifying
The influence value of influence value and vapour side leakage point to refined condensate treatment amount of dissolved oxygen amount is born water, corresponding selection is from water side or vapour side to institute
State condenser and carry out leakage detection.
2. the method as described in claim 1, it is characterised in that according to formula D1=D0-2*（D0-D0´）, calculate unlatching two
Influence value D1 of the condenser reclaimed water side leakage point to refined condensate treatment amount when platform water-ring vacuum pump Simultaneous Stabilization is run；Its
In, refined condensate treatment amount during the one water-ring vacuum pump stable operation of unlatching that D0 is got to be described in condenser, D0 ' is
Refined condensate treatment amount during two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching got in condenser.
3. method as claimed in claim 2, it is characterised in that according to formula D2=D0-D0 ', calculates two liquid-ring types of unlatching
Influence value D2 of the vapour side leakage point to refined condensate treatment amount in condenser when vavuum pump Simultaneous Stabilization is run.
4. method as claimed in claim 3, it is characterised in that methods described further comprises：
According to formula D3=2*（D0-D0´）, vapour in condenser when calculating one water-ring vacuum pump stable operation of unlatching
Influence value D3 of the side leakage point to refined condensate treatment amount.
5. the method as described in claim 1, it is characterised in that two liquid-ring type vacuum of the unlatching calculated described in the basis
Pump Simultaneous Stabilization run when condenser reclaimed water side leakage point to the influence value and vapour side leakage point of refined condensate treatment amount to condensate
The influence value of dissolved oxygen amount, the step of corresponding selection carries out leakage detection from water side or vapour side to the condenser specifically includes：
When two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated, condenser reclaimed water side leakage point is to condensing
Vapour side leakage point when the influence value of water-soluble oxygen amount is more than two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated
To the influence value of refined condensate treatment amount, then select to carry out leakage detection to the condenser from water side；
When two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated, condenser reclaimed water side leakage point is to condensing
Vapour side leakage point when the influence value of water-soluble oxygen amount is less than two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated
To the influence value of refined condensate treatment amount, then select to carry out leakage detection to the condenser from vapour side.
6. one kind is based on refined condensate treatment amount to Nuclear Power Station Condensers leakage detection system, it is characterised in that the system includes：
Acquiring unit, condensing when a water-ring vacuum pump stable operation is opened under nuclear power generating sets steady operational status for obtaining
Refined condensate treatment amount in device, and it is to be determined it is described get one water-ring vacuum pump stable operation of unlatching when condenser in
Refined condensate treatment amount be more than predetermined threshold value after, obtain nuclear power generating sets steady operational status under open two water-ring vacuum pumps it is same
When stable operation when the condenser in refined condensate treatment amount；
Computing unit, for according to corresponding to one liquid-ring type of unlatching under the nuclear power generating sets steady operational status got respectively
With respective refined condensate treatment in condenser when opening two water-ring vacuum pump Simultaneous Stabilizations operations during vavuum pump stable operation
Amount, the condenser reclaimed water side leakage point is to refined condensate treatment when calculating two water-ring vacuum pump Simultaneous Stabilization operations of unlatching
Influence value of the influence value and vapour side leakage point of amount to refined condensate treatment amount；
Leakage detection selecting unit, condenser when two water-ring vacuum pump Simultaneous Stabilizations of unlatching for being calculated according to are run
Reclaimed water side leakage point is to the influence value and vapour side leakage point of refined condensate treatment amount to the influence value of refined condensate treatment amount, corresponding selection
Leakage detection is carried out to the condenser from water side or vapour side.
7. system as claimed in claim 6, it is characterised in that according to formula D1=D0-2*（D0-D0´）, calculate unlatching two
Influence value D1 of the condenser reclaimed water side leakage point to refined condensate treatment amount when platform water-ring vacuum pump Simultaneous Stabilization is run；Its
In, refined condensate treatment amount during the one water-ring vacuum pump stable operation of unlatching that D0 is got to be described in condenser, D0 ' is
Refined condensate treatment amount during two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching got in condenser.
8. system as claimed in claim 7, it is characterised in that according to formula D2=D0-D0 ', calculates two liquid-ring types of unlatching
Influence value D2 of the vapour side leakage point to refined condensate treatment amount in condenser when vavuum pump Simultaneous Stabilization is run.
9. system as claimed in claim 8, it is characterised in that according to formula D3=2*（D0-D0´）, calculate one water of unlatching
Influence value D3 of the vapour side leakage point to refined condensate treatment amount in condenser during ring vacuum pumps stable operation.
10. system as claimed in claim 6, it is characterised in that the leakage detection selecting unit includes：
First choice module, in the condenser when two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated
Water side leakage point is more than described two water-ring vacuum pump Simultaneous Stabilizations of unlatching calculated to the influence value of refined condensate treatment amount
Vapour side leakage point then selects to carry out leakage detection to the condenser from water side to the influence value of refined condensate treatment amount during operation；
Second selecting module, in the condenser when two water-ring vacuum pump Simultaneous Stabilization operations of the unlatching calculated
Water side leakage point is less than described two water-ring vacuum pump Simultaneous Stabilizations of unlatching calculated to the influence value of refined condensate treatment amount
Vapour side leakage point then selects to carry out leakage detection to the condenser from vapour side to the influence value of refined condensate treatment amount during operation.
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