CN105869687A - Measuring method and measuring system for water film coverage rate of steel containment vessel - Google Patents
Measuring method and measuring system for water film coverage rate of steel containment vessel Download PDFInfo
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- CN105869687A CN105869687A CN201610172230.5A CN201610172230A CN105869687A CN 105869687 A CN105869687 A CN 105869687A CN 201610172230 A CN201610172230 A CN 201610172230A CN 105869687 A CN105869687 A CN 105869687A
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- Prior art keywords
- containment vessel
- film coverage
- coverage rate
- moisture film
- steel containment
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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
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
The invention discloses a measuring method and measuring system for the water film coverage rate of a steel containment vessel. The measuring method comprises the following steps: selecting an annular area on the steel containment vessel; installing and fixing a plurality of image acquisition units along the horizontal plane of the annular area; opening a water tank located on the top of a shield building, carrying out image acquisition and transmitting image data to a terminal unit; identifying and analyzing acquired images and identifying an area covered by water current; and calculating the water film coverage rate of the annular area and the integral water film coverage rate of the steel containment vessel according to data formed by identification of the water current. The measuring system comprises an area positioning module, the image acquisition units, an equipment setting module, an image synthesis module and a data calculating module. According to the invention, through selection of a plurality of annular areas with same diameters and different heights on the steel containment vessel and measurement of the water film coverage rate of the annular areas, the water film coverage rate of the steel containment vessel is calculated; so accuracy of measured data is improved and measurement difficulty is decreased.
Description
Technical field
The present invention relates to measuring method and the measurement system of a kind of steel containment vessel moisture film coverage rate.
Background technology
Third generation presurized water reactor passive nuclear plant uses double layer security shell structure, and outer containment is xoncrete structure
Shielding Factory Building, inner containment is steel containment vessel structure.Internal layer steel containment vessel can be by safety under accident conditions
Heat within shell is delivered to outside steel containment vessel by containment conduction of heat, then is incited somebody to action by natural convection air
Heat passes to air.In order to improve heat output, outer containment top arranges cooling water tank, under accident conditions,
The water of water tank sprays steel containment vessel by action of gravity, and flows downward along containment, is taken away by heat.
Therefore, the measurement of steel containment vessel moisture film coverage rate is the item that must conduct an experiment before nuclear power plant feeds
Mesh, the routine test that Ye Shi nuclear power plant run duration will be carried out once every 10 years simultaneously.
In nuclear power plant, outer containment clearance space is narrow and small, and steel containment vessel outer surface also has air baffle to isolate.
Simultaneously as steel containment vessel height is higher, generally requires work high above the ground during measurement, be unfavorable for steel containment vessel
The accurate measurement of moisture film coverage rate.
At present, by methods such as thermal infrared instrument, manual measurements, containment moisture film coverage rate can be measured, but
There is certain shortcoming in these methods, as thermal infrared instrument is measured, can be become with the containment contact surface temperature difference by water temperature
The impact changed；Manual measurement is then more by anthropic factor, carries out work high above the ground at narrow space for a long time, to people
Requirement the highest, survey crew be vulnerable to interference, all can affect accuracy and the certainty of measurement of measurement.
Summary of the invention
Problem to be solved by this invention is to provide the measurement technology of a kind of steel containment vessel moisture film coverage rate, it is possible to
Clearly, accurately measure and calculate in real time the coverage condition of containment moisture film.
In order to solve the problems referred to above, the invention provides the measuring method of a kind of steel containment vessel moisture film coverage rate,
It is characterized in that, its step includes:
Step 1): on steel containment vessel, choose the annular region identical, the most different no less than 2 diameters；
Step 2): along step 1) horizontal plane of annular region chosen, at the outer concrete screen of shielding Factory Building
Cover and fixing multiple image capture devices are installed on inner wall；
Step 3): open shielding Factory Building top water tank, while current flow out, carry out image acquisition, and will
View data is transferred to terminal unit；
Step 4): the image gathered is identified and is analyzed, and often group image is by one image of software process quality,
And identify the region covered by current；
Step 5): according to identifying that the data that current are formed calculate the moisture film coverage rate of annular region, and steel
The moisture film coverage rate that containment is overall.
Preferably, the width of described annular region is 0.3-1.5 rice.
Preferably, the outer wall of described annular region arranges image recognition and distinguishes mark.
It is highly preferred that it is fluorescence scales, irregular curve or both combinations that mark is distinguished in described image recognition.
Preferably, the image capture device in each described annular region is uniformly distributed, adjacent image collecting device
The image gathered has subregion to overlap.
Preferably, the image capture device in each described annular region is no less than 12, image capture device
Shooting angle be 140 °, the angle of adjacent two image capture devices and steel containment vessel central shaft is 30
°。
Preferably, described image capture device includes high definition camera and luminaire.
Preferably, the computing formula of the moisture film coverage rate of described annular region is:
ρA=(l1+l2+…+ln)/l；
Wherein, ρAMoisture film coverage rate for annular region；L is composograph length；Ln is n-th by water
The zone length that film covers.
Preferably, the computing formula of the moisture film coverage rate that described steel containment vessel is overall is:
ρ=γA·ρA+γB·ρB+…；
Wherein, ρ is the moisture film coverage rate that steel containment vessel is overall；γAFor A annular region coefficient, ρAFor
The moisture film coverage rate of A annular region, γBFor B annular region coefficient, ρBMoisture film for B annular region covers
Lid rate, by that analogy, all annular region coefficient sums are 1, and each annular region coefficient is 0.3～0.7.
Present invention also offers the measurement system of a kind of steel containment vessel moisture film coverage rate, it is characterised in that include
Steel containment vessel is chosen the zone location mould of the annular region identical, the most different no less than 2 diameters
Block；For opening shielding Factory Building top water tank, carrying out image acquisition while current flow out, and by image
Data are transferred to the image capture device of terminal unit；For the horizontal plane by image capture device annularly region
The equipment being uniformly arranged on shielding Factory Building outer concrete barrier shield inwall arranges module；For to the figure gathered
As being identified and analyzing, often group image is by one image of software process quality, and identifies the region covered by current
Image synthesis unit；For calculating the moisture film coverage rate of annular region according to the data identifying current formation, with
And the data computation module of the moisture film coverage rate of steel containment vessel entirety；Data computation module and image synthesis unit
Connecting, image synthesis unit arranges module with zone location module, equipment respectively and is connected, and equipment arranges module even
Connect image capture device.
Preferably, the width of the annular region that described zone location module is chosen is 0.3-1.5 rice.
Preferably, the outer wall of the annular region that described zone location module is chosen is provided with image recognition and distinguishes note
Number.
Preferably, mark is distinguished in described image recognition is fluorescence scales, irregular curve or both combinations.
Preferably, described equipment arranges module and arranges the distribution rule of image capture device over an annular region and is:
It is uniformly distributed, and the image of adjacent image collecting device collection has subregion to overlap.
Preferably, described image capture device is no less than 12 in same annular region, and image acquisition sets
Standby shooting angle is 140 °, and adjacent two image capture devices are 30 with the angle of steel containment vessel central shaft
°。
Preferably, described image capture device includes high definition camera and luminaire.
The present invention, by choosing some annular regions that diameter is identical, the most different on steel containment vessel, passes through
The moisture film coverage rate in measure annular region calculates the moisture film coverage rate of steel containment vessel, improves measurement data
Accuracy, reduces the difficulty of measurement.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of annular region on steel containment vessel；
Fig. 2 is the layout drawing of image capture device in annular region；
Fig. 3 is fluorescence scales and the schematic diagram of irregular curve outside annular region；
Fig. 4 is the module connection figure of measurement system.
Detailed description of the invention
For making the present invention become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
Embodiment 1
The measuring method of a kind of steel containment vessel moisture film coverage rate, the steps include:
S1: choose two and identical, the most different annular region of diameter, this enforcement on steel containment vessel 1
The A annular region selecting width to be 0.5 meter at 52 meters of absolute altitudes and 23 meters of absolute altitudes respectively in example and B annular
Region is as the region of collection image, as shown in Figure 1；
S2: along the horizontal plane of above-mentioned annular region, install on shielding Factory Building outer concrete barrier shield 2 inwall
Fix several image capture devices 3；
S3: open shielding Factory Building top water tank, carry out image acquisition while current flow out, and by picture number
According to being transferred to terminal unit；
S4: the image gathered is identified and is analyzed, often group image is by one image of software process quality, and knows
The region not covered by current；
S5: according to identifying that the data that current are formed calculate the moisture film coverage rate of annular region, and steel containment vessel
The moisture film coverage rate of 1 entirety.
In specific implementation process, cover long at annular region outer wall mark fluorescence scales and irregular curve film
Degree, in order to carry out image recognition, synthesis and data analysis and calculating.The adjacent phosphor point distance arranged is 0.1
Rice, 1247 phosphor dots altogether, (as it is shown on figure 3, black round dot is phosphor dot in Fig. 3, phosphor dot is upper and lower
The irregular curve of both sides i.e. irregular curve film).
In specific implementation process, according to the spacing between containment 1 Factory Building and barrier shield 2 body of wall and camera
Space needed for installation, is arranged in annular region is circumferentially evenly arranged by calculating image collecting device 3
No less than 12 image collecting devices 3, image acquisition shooting angle is 140 °, adjacent two data acquisitions dress
Putting the angle with containment axis is 30 °, and two groups amount to 24 image collecting devices 3, see Fig. 2.Adjacent
The image that image collecting device 3 obtains overlaps.Image collecting device 3 includes that high definition camera and illumination set
Standby.
In specific implementation process, cable data line is taked to carry out data transmission, to reduce data by noise shadow
Ring.A annular region and B annular region all comprise 12 groups of data, and by I/O Interface integration, input calculates
Machine.
The data of data acquisition module are imported computer, right by image analysis software (such as HAICON)
12 images of synchronization collection process, and shear the lap between adjacent image, identify moisture film
Overlay area and no-coverage, calculate A annular region and the moisture film coverage rate of B annular region, then lead to
Cross formula and obtain the moisture film coverage rate of steel containment vessel 1.
By image synthesizing software, process often organizing picture intersection, and judge current or wetted area,
Calculate moisture film coverage rate, show in real time and draw moisture film coverage rate curve chart.Pilot project test window phase is
72 hours, according to the test period, image acquisition interval was chosen for 1 minute, the most permissible during test
Gather 4320 groups of historical datas, and draw moisture film coverage rate curve.
In specific implementation process, the computing formula of the moisture film coverage rate of annular region is:
ρA=(l1+l2+…+ln)/l；
Wherein, ρAMoisture film coverage rate for annular region；L is composograph length；Ln is n-th by water
The zone length (length is all the length that image processing software determines, with unified standard) that film covers.
The computing formula of the moisture film coverage rate of steel containment vessel 1 entirety is:
ρ=γA·ρA+γB·ρB+…；
Wherein, ρ is the moisture film coverage rate that steel containment vessel (1) is overall；γAFor A annular region coefficient,
ρAFor the moisture film coverage rate of A annular region, γBFor B annular region coefficient, ρBFor B annular region
Moisture film coverage rate, by that analogy, all annular region coefficient sums are 1, and each annular region coefficient is
0.3～0.7.In certain moment in process of the test, survey calculation draws ρ x=73%, ρB=75%, take γA=0.45,
γB=0.55, calculate ρ=0.45 73%+0.55 75%=74.1% by above formula.Region is
Number can rule of thumb be adjusted with different measuring object.
Embodiment 2
Present embodiments provide the measurement system of a kind of steel containment vessel moisture film coverage rate, including:
1, zone location module is identical no less than 2 and diameter, high for choosing on steel containment vessel 1
Spend different annular regions；
2, equipment arranges module, for the horizontal plane along above-mentioned annular region, at shielding Factory Building outer concrete
Fixing some image capture devices 3 are installed on barrier shield 2 inwall；
3, image capture module, is used for opening shielding Factory Building top water tank, carries out figure while current flow out
As gathering, and view data is transferred to terminal unit；
4, image synthesis unit, is identified the image gathered and analyzes, and often group image passes through software process quality
One image, and identify the region covered by current；
5, data computation module, for according to identifying that the data that current are formed calculate the moisture film covering of annular region
Rate, and the moisture film coverage rate that steel containment vessel is overall.
Data computation module is connected with image synthesis unit, image synthesis unit respectively with zone location module, set
The standby module that arranges connects, and equipment arranges module and connects image capture device (3)
The annular region outer wall of described zone location module arrange image recognition distinguish mark, use fluorescence scales and
Irregular curve.
Described equipment arranges the image capture device 3 of module and is uniformly distributed, and it gathers image subregion weight
Close.
Described equipment arranges the image capture device 3 of module and is no less than 12, and image acquisition shooting angle is 140
°, adjacent 2 data acquisition units are 30 ° with the angle of containment axis.
Described equipment arranges the image capture device 3 of module and includes high definition camera and luminaire.
The present invention can use and can use at one or more computers wherein including computer usable program code
The upper calculating implemented of storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.)
The form of machine program product.
Claims (16)
1. the measuring method of a steel containment vessel moisture film coverage rate, it is characterised in that its step includes:
Step 1): on steel containment vessel (1), choose the annular identical, the most different no less than 2 diameters
Region；
Step 2): along step 1) horizontal plane of annular region chosen, at the outer concrete screen of shielding Factory Building
Cover and fixing multiple image capture devices (3) are installed on wall (2) inwall；
Step 3): open shielding Factory Building top water tank, while current flow out, carry out image acquisition, and will
View data is transferred to terminal unit；
Step 4): the image gathered is identified and is analyzed, and often group image is by one image of software process quality,
And identify the region covered by current；
Step 5): according to identifying that the data that current are formed calculate the moisture film coverage rate of annular region, and steel
The moisture film coverage rate that containment (1) is overall.
2. the measuring method of steel containment vessel moisture film coverage rate as claimed in claim 1, it is characterised in that described
The width of annular region is 0.3-1.5 rice.
3. the measuring method of steel containment vessel moisture film coverage rate as claimed in claim 1, it is characterised in that described
The outer wall of annular region arranges image recognition and distinguishes mark.
4. the measuring method of steel containment vessel moisture film coverage rate as claimed in claim 3, it is characterised in that described
It is fluorescence scales, irregular curve or both combinations that mark is distinguished in image recognition.
5. the measuring method of steel containment vessel moisture film coverage rate as claimed in claim 1, it is characterised in that each
Image capture device (3) in described annular region is uniformly distributed, and adjacent image collecting device (3) gathers
Image has subregion to overlap.
6. the measuring method of the steel containment vessel moisture film coverage rate as described in claim 1 or 5, it is characterised in that
Image capture device (3) in each described annular region is no less than 12, image capture device (3)
Shooting angle is 140 °, adjacent two image capture devices (3) and the folder of steel containment vessel (1) central shaft
Angle is 30 °.
7. the measuring method of steel containment vessel moisture film coverage rate as claimed in claim 1, it is characterised in that described
Image capture device (3) includes high definition camera and luminaire.
8. the measuring method of steel containment vessel moisture film coverage rate as claimed in claim 1, it is characterised in that described
The computing formula of the moisture film coverage rate of annular region is:
ρA=(l1+l2+…+ln)/l；
Wherein, ρAMoisture film coverage rate for annular region；L is composograph length；Ln is n-th by water
The zone length that film covers.
9. the measuring method of steel containment vessel moisture film coverage rate as claimed in claim 1, it is characterised in that described
The computing formula of the moisture film coverage rate that steel containment vessel (1) is overall is:
ρ=γA·ρA+γB·ρB+…；
Wherein, ρ is the moisture film coverage rate that steel containment vessel (1) is overall；γAFor A annular region coefficient,
ρAFor the moisture film coverage rate of A annular region, γBFor B annular region coefficient, ρBFor B annular region
Moisture film coverage rate, by that analogy, all annular region coefficient sums are 1, and each annular region coefficient is
0.3～0.7.
10. the measurement system of a steel containment vessel moisture film coverage rate, it is characterised in that be included in steel containment vessel (1)
On choose the zone location module of the annular region identical, the most different no less than 2 diameters；For opening
Shield Factory Building top water tank, while current flow out, carry out image acquisition, and view data is transferred to terminal
The image capture device (3) of equipment；For by uniform for the horizontal plane in image capture device (3) annularly region
The equipment being arranged on shielding Factory Building outer concrete barrier shield (2) inwall arranges module；For to collection
Image is identified and analyzes, and often group image is by one image of software process quality, and identifies the district covered by current
The image synthesis unit in territory；For calculating the moisture film coverage rate of annular region according to the data identifying current formation,
And the data computation module of the moisture film coverage rate of steel containment vessel (1) entirety；Data computation module and image
Synthesis module connects, and image synthesis unit arranges module with zone location module, equipment respectively and is connected, and equipment sets
Put module and connect image capture device (3).
The measurement system of 11. steel containment vessel moisture film coverage rates as claimed in claim 10, it is characterised in that institute
The width stating the annular region that zone location module is chosen is 0.3-1.5 rice.
The measurement system of 12. steel containment vessel moisture film coverage rates as claimed in claim 10, it is characterised in that institute
The outer wall stating the annular region that zone location module is chosen is provided with image recognition differentiation mark.
The measurement system of 13. steel containment vessel moisture film coverage rates as claimed in claim 12, it is characterised in that institute
Stating image recognition and distinguishing mark is fluorescence scales, irregular curve or both combinations.
The measurement system of 14. steel containment vessel moisture film coverage rates as claimed in claim 10, it is characterised in that institute
The equipment of stating arranges module and arranges the distribution rule of image capture device (3) over an annular region and is: be uniformly distributed,
And the image that adjacent image collecting device (3) gathers has subregion to overlap.
The measurement system of 15. steel containment vessel moisture film coverage rates as claimed in claim 10, it is characterised in that institute
State image capture device (3) in same annular region no less than 12, image capture device (3)
Shooting angle is 140 °, adjacent two image capture devices (3) and the folder of steel containment vessel (1) central shaft
Angle is 30 °.
The measurement system of 16. steel containment vessel moisture film coverage rates as claimed in claim 10, it is characterised in that institute
State image capture device (3) and include high definition camera and luminaire.
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| CN201610172230.5A CN105869687B (en) | 2016-03-24 | 2016-03-24 | A kind of measuring method and measuring system of steel containment vessel moisture film coverage rate |
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| CN201610172230.5A CN105869687B (en) | 2016-03-24 | 2016-03-24 | A kind of measuring method and measuring system of steel containment vessel moisture film coverage rate |
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| CN105869687A true CN105869687A (en) | 2016-08-17 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112017798A (en) * | 2020-09-03 | 2020-12-01 | 三门核电有限公司 | Improved containment outer surface water film coverage rate inspection system and method |
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| DE2307064A1 (en) * | 1972-02-18 | 1973-08-23 | Asea Atom Ab | Coolant flow measuring system - for reactor with internal pumping equipment |
| CN204117608U (en) * | 2014-08-19 | 2015-01-21 | 国核华清（北京）核电技术研发中心有限公司 | Nuclear reactor safety shell moisture joins test unit |
| CN105185420A (en) * | 2015-05-26 | 2015-12-23 | 中国科学技术大学 | Automatic detection device and method for cooling water film coverage on nuclear power plant containment surface |
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2016
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| DE2307064A1 (en) * | 1972-02-18 | 1973-08-23 | Asea Atom Ab | Coolant flow measuring system - for reactor with internal pumping equipment |
| CN204117608U (en) * | 2014-08-19 | 2015-01-21 | 国核华清（北京）核电技术研发中心有限公司 | Nuclear reactor safety shell moisture joins test unit |
| CN105185420A (en) * | 2015-05-26 | 2015-12-23 | 中国科学技术大学 | Automatic detection device and method for cooling water film coverage on nuclear power plant containment surface |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112017798A (en) * | 2020-09-03 | 2020-12-01 | 三门核电有限公司 | Improved containment outer surface water film coverage rate inspection system and method |
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Effective date of registration: 20201118 Address after: 200233 Shanghai city Xuhui District Hong Cao Road No. 29 Patentee after: STATE NUCLEAR POWER ENGINEERING Co. Patentee after: CHINA NUCLEAR INDUSTRY 23 CONSTRUCTION Co.,Ltd. Address before: 200233 No. 2, building 888, Tianlin Road, Shanghai, Minhang District Patentee before: STATE NUCLEAR POWER ENGINEERING Co. |
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Effective date of registration: 20221021 Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Patentee after: CHINA NUCLEAR INDUSTRY 23 CONSTRUCTION Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: STATE NUCLEAR POWER ENGINEERING Co. Patentee before: CHINA NUCLEAR INDUSTRY 23 CONSTRUCTION Co.,Ltd. |
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Address after: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Patentee after: CHINA NUCLEAR INDUSTRY 23 CONSTRUCTION Co.,Ltd. Address before: No. 29 Hong Cao Road, Xuhui District, Shanghai Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Patentee before: CHINA NUCLEAR INDUSTRY 23 CONSTRUCTION Co.,Ltd. |