CN105931684A - Visual test device for foreign matter filtering performance study of reactor core lower pipe base of nuclear reactor - Google Patents
Visual test device for foreign matter filtering performance study of reactor core lower pipe base of nuclear reactor Download PDFInfo
- Publication number
- CN105931684A CN105931684A CN201610327331.5A CN201610327331A CN105931684A CN 105931684 A CN105931684 A CN 105931684A CN 201610327331 A CN201610327331 A CN 201610327331A CN 105931684 A CN105931684 A CN 105931684A
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- square
- plate
- methyl methacrylate
- flange
- rectangle
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/10—Structural combination of fuel element, control rod, reactor core, or moderator structure with sensitive instruments, e.g. for measuring radioactivity, strain
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C3/00—Reactor fuel elements and their assemblies; Selection of substances for use as reactor fuel elements
- G21C3/30—Assemblies of a number of fuel elements in the form of a rigid unit
- G21C3/32—Bundles of parallel pin-, rod-, or tube-shaped fuel elements
-
- 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)
- Monitoring And Testing Of Nuclear Reactors (AREA)
Abstract
The invention discloses a visual test device for a foreign matter filtering performance study of a reactor core lower pipe base of a nuclear reactor. The test device is mainly composed of an upper transparent square runner, a lower transparent square runner, an upper square flange, a lower square flange, an upper circular flange, a lower circular flange, a pressure-leading pipe, a square ring rib and the like. The test device can be used for making reactor core lower pipe base foreign matter filtering performance tests and studying the filtering efficiency of different types of lower pipe bases and influences of foreign matter blocking situations on downstream flow fields, and can also be used for a lower pipe base foreign matter impact failure resistance study. The test device can meet the requirements for an out-of-reactor visual test study of reactor core lower pipe base foreign matter filtering performance under mass flow. In addition, the test device has the advantages that the test process is visual, safety is high, and various types of lower pipe bases can be replaced and additionally installed easily.
Description
Technical field
The invention belongs to nuclear-plant performance test research technical field, be specifically related to a kind of core
Reactor core bottom nozzle foreign body filtering performance study visual test device.
Background technology
Fuel assembly for nuclear reactor is the key component of reactor core, by some fuel rods, leads
Constitute to duct member and grid spacer and upper bottom nozzle.Bottom nozzle is positioned at bottom fuel assembly, is
Fuel assembly lower interface and support member, provide the passage of coolant inflow simultaneously and distribute cold
But agent flux, in order to prevent foreign body from entering nuclear fuel assembly screen work lattice cell, need to be in the company of bottom nozzle
Fishplate bar filter plate installed above, in order to filter and to stop foreign body in water, reduces foreign body and enters fuel stack
It is hooked on inside part on screen work to wash away with coolant and swings the fuel rod clad abrasion breakage brought
Risk, therefore the foreign body filtering performance of bottom nozzle directly affects the peace of fuel assembly and reactor core
Entirely, for nuclear reactor safety operation, there is important function.
In reactor actual motion, maintenance process, the such as metal fragment of the foreign body in coolant or
The screw come off enters in fuel assembly, and along with coolant flow at high speed, foreign body will be due to friction
Fuel rod clad pipe is caused great bodily injury by collisions etc., and then causes radioactive substance gentle external
Letting out, cause reactor shutdown to keep in repair, economic loss is huge.And fuel assembly bottom nozzle is in height
In temperature high pressure high radioactivity environment, therefore, fuel assembly for nuclear reactor bottom nozzle is carried out foreign body
Strainability out-pile Visualization is the most necessary.In down pipe base for nucleus fuel component design side
Face, needs the bottom nozzle designed is carried out performance test, and this is accomplished by assay device has relatively
High reliability and visualization level and better simply structure.The present invention is based on this design
A kind of nuclear reactor bottom nozzle foreign body filtering performance study visual test device.
Chinese patent CN105206314A discloses a kind of for studying fuel assembly blocking row
For Visualization column device, it includes lower chambers, reactor core bread board and upper chamber.Reactor core
The discharge orifice for connecting upper chamber and lower chambers it is provided with in bread board；Bottom chamber is provided with
Fluid containing fragment impurity can well-mixed be led before entering fuel assembly bottom nozzle
Stream unit.Under it is mainly used in foreign body blocking behavior research in fuel assembly and can not carry out
Base filters foreign body performance and drag characteristic research, can not carry out bottom nozzle shock resistance destruction and grind
Study carefully.
And for example Chinese patent application publication number CN104236942A discloses a kind of filter
Energy detection method, device and system thereof.Its assay device include main circulation loop, cooling circuit,
Bypass circulation, draining circuit, fiber, granule foreign that charge door puts into put into dosing mouth
Chemical reagent reaction generates chemical precipitates, relies on circulating pump to drive and flows through filter, by surveying
Amount filter pressure at two ends fall judges the performance of filter.But, the research of its assay device is right
As if containment sump filter, rather than bottom nozzle filtration, both construction featuress are different；
What secondly this assay device was paid close attention to and measured is the pressure drop of filter two ends and judges to filter with this
Whether device performance meets requirement, and bottom nozzle institute to nuclear fuel assembly in reactor safety analysis
Be concerned about performance indications except drooping characteristic, also include filter efficiency, antiscour destructive characteristics with
And the impact that foreign matters from being blocked situation is on flow field, downstream, thus this detection method, device and system thereof
It is not suitable for fuel assembly for nuclear reactor bottom nozzle foreign body filtering performance test.
For another example Chinese patent application publication number CN204831962U discloses a kind of cluster passage
Flow visual pilot system, including water loop, tracer branch road, cluster passage and data acquisition
Four parts of collecting system.Capital equipment in water loop includes cyclic water tank, centrifugal pump, flow
Meter, thermometer and Pressure gauge；Tracer branch road mainly include tracer storage box, injection pump,
Control valve, tracer syringe needle；Cluster passage mainly includes channel body, visualization rod
Bundle, grid spacer, air bleeding valve；Acquisition system part mainly include computer, data acquisition board and
Video camera.But, its pilot system research is the flowing of cluster passage, rather than bottom nozzle is different
Thing strainability；Its pilot system can only simulate the single-phase flow in cluster passage, and nuclear reaction
In heap engineering, research is that primary Ioops coolant carries the foreign body water by fuel assembly bottom nozzle
Power performance of flushing, on bottom nozzle, filtration filters the efficiency of foreign body, foreign body to need concern to include
Pressure drop characteristics, the impact of foreign body stream field and bottom nozzle in the case of blocking bottom nozzle resist different
Thing destructive characteristics, thus this pilot system is not suitable for fuel assembly for nuclear reactor bottom nozzle foreign body
Strainability visual research.
Invention description
It is not suitable for solve above-mentioned existing assay device or pilot system or is unsatisfactory for core work
The journey field demand to fuel assembly bottom nozzle foreign body filtering performance study Visualization, this
The bright one nuclear reactor bottom nozzle foreign body filtering performance study Visualization that provides fills
Putting, device of the present invention is capable of the visual research to bottom nozzle foreign body filtering performance,
Bottom nozzle and the screen plate of multi-form can be installed again simultaneously additional, simulate nuclear power station the biggest flow work
Condition, in order to more in depth to bottom nozzle foreign body filtering performance research experiment.
In order to achieve the above object, the present invention adopts the following technical scheme that
Nuclear reactor bottom nozzle foreign body filtering performance study visual test device, described can
Regarding assay device is as square structure, and material is lucite, including the substructure being connected
1 and superstructure 2, described substructure 1 is from top to bottom by the bottom large square being sequentially communicated
Passage, the little square duct of bottom undergauge passage and bottom form, described bottom large square passage
Bottom connects bottom square flange 4-1, and the top of the little square duct in bottom connects bottom circle
Shape flange 5-1；Described bottom large square passage is by symmetrical equal-sized bottom the second square
Shape poly (methyl methacrylate) plate 1-2 and bottom the 4th rectangle poly (methyl methacrylate) plate 1-4 and front and back symmetrical size
Equal bottom the first rectangle poly (methyl methacrylate) plate 1-1 and bottom the 3rd rectangle poly (methyl methacrylate) plate 1-3
Surround by bonding way, if be disposed with bolt stem from top to bottom in abutting edge in order to strengthen even simultaneously
Connect intensity；Described bottom undergauge passage is organic by symmetrical equal-sized bottom the 5th rectangle
Glass plate 1-5 and bottom the 8th rectangle poly (methyl methacrylate) plate 1-8 and the most symmetrical equal-sized
Bottom the 6th rectangle poly (methyl methacrylate) plate 1-6 and bottom the 7th rectangle poly (methyl methacrylate) plate 1-7 is with bonding
Mode surrounds, if be disposed with bolt stem from top to bottom in abutting edge strong in order to add strong ties simultaneously
Degree；The little square duct in described bottom is by symmetrical equal-sized bottom the 9th organic glass of rectangle
Glass plate 1-9 and bottom the 12nd rectangle poly (methyl methacrylate) plate 1-12, the most symmetrical equal-sized under
Portion the tenth rectangle poly (methyl methacrylate) plate 1-10 and bottom the 11st rectangle poly (methyl methacrylate) plate 1-11 is with viscous
The mode of connecing surrounds, if be disposed with bolt stem from top to bottom in abutting edge strong in order to add strong ties simultaneously
Degree；From bottom square flange 4-1 352mm on described bottom the 3rd rectangle poly (methyl methacrylate) plate 1-3
The first pressure guiding pipe 6-1 and the second pressure guiding pipe 6-2 is connected respectively at place and 452mm；Big in bottom
The first reinforcing strip 7-1 is installed in square duct and square flange 4-1 junction, bottom, little in bottom
The second reinforcing strip 7-2 is installed in square duct and circular flange 5-1 junction, bottom；In bottom side
A circle Q-RING rib it is provided with in the bottom large square passage of predeterminated position below shape flange 4-1
8, bottom nozzle testpieces is i.e. placed on this Q-RING rib 8；
Described superstructure 2 is from bottom to up by the top large square passage being sequentially communicated, top contracting
The little square duct of footpath passage and top forms, on the top of described top large square passage connects and has
Portion square flange 4-2, the bottom of the little square duct in top connects upper circular flange 5-2；
Described top large square passage is by symmetrical equal-sized top the second rectangle lucite
Plate 2-2 and top the 4th rectangle poly (methyl methacrylate) plate 2-4 and the most symmetrical equal-sized top
First rectangle poly (methyl methacrylate) plate 2-1 and top the 3rd rectangle poly (methyl methacrylate) plate 2-3 bonding way
Surround, if be disposed with bolt stem from top to bottom in order to strengthen bonding strength in abutting edge simultaneously；Institute
State top undergauge passage by symmetrical equal-sized top the 5th rectangle poly (methyl methacrylate) plate 2-5
With top the 8th rectangle poly (methyl methacrylate) plate 2-8 and the most symmetrical equal-sized top the 6th square
Shape poly (methyl methacrylate) plate 2-6 and top the 7th rectangle poly (methyl methacrylate) plate 2-7 bonding way surround,
If be disposed with bolt stem from top to bottom in order to strengthen bonding strength in abutting edge simultaneously；Described top
Little square duct is by symmetrical equal-sized top the 9th rectangle poly (methyl methacrylate) plate 2-9 and upper
Portion the 12nd rectangle poly (methyl methacrylate) plate 2-12, the most symmetrical equal-sized top the tenth rectangle have
Machine glass plate 2-10 and top the 11st rectangle poly (methyl methacrylate) plate 2-11 bonding way surround,
If be disposed with bolt stem from top to bottom in order to strengthen bonding strength in abutting edge simultaneously；Described top
Away from the square flange 4-2 400mm of top, the 3rd is connected on 3rd rectangle poly (methyl methacrylate) plate 2-3
Pressure guiding pipe 6-3；The 3rd is installed with square flange 4-2 junction, top at top large square passage
Reinforcing strip 7-3, on top, little square duct installs the 4th with upper circular flange 5-2 junction
Reinforcing strip 7-4；Extend to inner chamber inside the square flange 4-2 of top and closely block testpieces upper limb,
Fixation test part also prevents foreign body from passing from gap；
Described bottom square flange 4-1 and top square flange 4-2 shape adaptation, and interconnect mutually
Connect, form overall visual test device；
Described first pressure guiding pipe 6-1 and the 3rd pressure guiding pipe 6-3 is respectively with differential pressure pick-up two ends even
Connecing, described second pressure guiding pipe 6-2 is connected with pressure transducer, by pressure and differential pressure pick-up
Pressure in test and pressure reduction are measured, provides data for bottom nozzle drag characteristic analysis.
It is evenly arranged altogether on described bottom square flange 4-1 and tetra-limits of top square flange 4-2
12 bolts hole, in order to install.
It is evenly arranged in annular on described bottom circular flange 5-1 and upper circular flange 5-2
12 bolts hole, in order to install.
Described bottom circular flange 5-1 and the square runner connecting place of substructure 1, in flange
Portion is the external square runner of round mouth, and this structure has effectively disperseed local stress, it is ensured that examination
The intensity of experiment device.
Described upper circular flange 5-2 and the square runner connecting place of superstructure 2, in flange
Portion is the external square runner of round mouth, and this structure has effectively disperseed local stress, it is ensured that examination
The intensity of experiment device.
The most relatively, the present invention possesses following advantage:
1, the internal Q-RING rib of apparatus of the present invention constitutes card holding structure with top square flange, it is possible to
In the case of without bolt, the most fixing bottom nozzle, maintains the complete of assay device
Property.
2, apparatus of the present invention upper and lower side square opening inscribed circle mouth acting flange again so that stress disperses,
Add local strength, it is ensured that the safety of test.
3, apparatus of the present invention divide upper and lower two parts, are connected by flange and bolt, it is simple to dismounting,
The bottom nozzle of multi-form and screen plate can be installed additional simultaneously and recovering hook hangs on bottom nozzle
Foreign body, it is ensured that test easily operation, practical feasibility are high.
4, apparatus of the present invention use lucite manufacture, and runner four limit is except going back with in addition to bonding way
Carry out reinforcement with bolt, under conditions of meeting test requirements document intensity, had higher saturating
Lightness, it is achieved thereby that the visual research of process of the test, can simulate nuclear power station and flow the most greatly
Amount operating mode.
5, assay device of the present invention, for invent for research bottom nozzle foreign body filtering performance
Assay device, it is possible to reasonably simulate bottom nozzle foreign body filtering performance, overall structure letter at out-pile
Single, it is easy to processing, with low cost.
6, in apparatus of the present invention, three positions at runner are provided with pressure guiding pipe, can be in research
While bottom nozzle strainability, the drag characteristic to bottom nozzle is studied.
Accompanying drawing explanation
Fig. 1 is assay device overall structure schematic diagram of the present invention, and wherein Fig. 1 a is test section bottom
Structure chart, Fig. 1 b is bottom square flange structure chart, and Fig. 1 c is bottom circular flange structure chart,
Fig. 1 d is test section superstructure figure, and Fig. 1 e is upper circular flange arrangement figure, and Fig. 1 f is
Top square flange structure chart, Fig. 1 g is test section top and the bottom attachment structure schematic diagrams.
Fig. 2 is transparent test section lower junction composition, and wherein: Fig. 2 a is front view, Fig. 2 b is
Fig. 2 a along 1-1 to sectional view, Fig. 2 c be Fig. 2 b along 2-2 to sectional view, under Fig. 2 d is
Flange sectional view.
Fig. 3 is transparent test section superstructure figure, and wherein: Fig. 3 a is front view, Fig. 3 b is
Fig. 3 a along 1-1 to sectional view, Fig. 3 c be Fig. 3 b along 2-2 to sectional view, Fig. 3 d is figure
3b along 3-3 to sectional view.
Detailed description of the invention
The present invention is described in detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, nuclear reactor bottom nozzle foreign body filtering performance study Visualization
Device, described visual test device is square structure, and material is lucite, including being connected
The substructure 1 connect and superstructure 2, described substructure 1 is from top to bottom by being sequentially communicated
Bottom large square passage, bottom undergauge passage and bottom little square duct composition, described bottom
The bottom of large square passage connects bottom square flange 4-1, the top of the little square duct in bottom
Connect and have bottom circular flange 5-1；Described bottom large square passage is by symmetrical equal in magnitude
Bottom the second rectangle poly (methyl methacrylate) plate 1-2 and bottom the 4th rectangle poly (methyl methacrylate) plate 1-4 and
The most symmetrical equal-sized bottom the first rectangle poly (methyl methacrylate) plate 1-1 and bottom the 3rd rectangle have
Machine glass plate 1-3 bonding way surrounds, and is disposed with some spiral shells from top to bottom in abutting edge simultaneously
Bolt is in order to strengthen bonding strength；Described bottom undergauge passage is by symmetrical equal-sized bottom
5th rectangle poly (methyl methacrylate) plate 1-5 and bottom the 8th rectangle poly (methyl methacrylate) plate 1-8 and the most right
Claim equal-sized bottom the 6th rectangle poly (methyl methacrylate) plate 1-6 and bottom the 7th rectangle lucite
Plate 1-7 bonding way surrounds, if be disposed with from top to bottom in abutting edge simultaneously bolt stem in order to
Strengthen bonding strength；The little square duct in described bottom is by symmetrical equal-sized bottom the 9th
Rectangle poly (methyl methacrylate) plate 1-9 and bottom the 12nd rectangle poly (methyl methacrylate) plate 1-12, front and back symmetry are big
Little equal bottom the tenth rectangle poly (methyl methacrylate) plate 1-10 and bottom the 11st rectangle lucite
Plate 1-11 bonding way surrounds, and uses if be disposed with bolt stem from top to bottom in abutting edge simultaneously
To strengthen bonding strength；On described bottom the 3rd rectangle poly (methyl methacrylate) plate 1-3 from bottom square method
The first pressure guiding pipe 6-1 and the second impulse is connected respectively at blue 4-1 352mm and at 452mm
Pipe 6-2；In bottom large square passage and square flange 4-1 junction, bottom, the first reinforcing is installed
Bar 7-1, in bottom, the second reinforcing is installed in little square duct and circular flange 5-1 junction, bottom
Bar 7-2；Arrange in the bottom large square passage of predeterminated position below the square flange 4-1 of bottom
Having a circle Q-RING rib 8, bottom nozzle testpieces is i.e. placed on this Q-RING rib 8；
Described superstructure 2 is from bottom to up by the top large square passage being sequentially communicated, top contracting
The little square duct of footpath passage and top forms, on the top of described top large square passage connects and has
Portion square flange 4-2, the bottom of the little square duct in top connects upper circular flange 5-2；
Described top large square passage is by symmetrical equal-sized top the second rectangle lucite
Plate 2-2 and top the 4th rectangle poly (methyl methacrylate) plate 2-4 and the most symmetrical equal-sized top
First rectangle poly (methyl methacrylate) plate 2-1 and top the 3rd rectangle poly (methyl methacrylate) plate 2-3 bonding way
Surround, if be disposed with bolt stem from top to bottom in order to strengthen bonding strength in abutting edge simultaneously；Institute
State top undergauge passage by symmetrical equal-sized top the 5th rectangle poly (methyl methacrylate) plate 2-5
With top the 8th rectangle poly (methyl methacrylate) plate 2-8 and the most symmetrical equal-sized top the 6th square
Shape poly (methyl methacrylate) plate 2-6 and top the 7th rectangle poly (methyl methacrylate) plate 2-7 bonding way surround,
If be disposed with bolt stem from top to bottom in order to strengthen bonding strength in abutting edge simultaneously；Described top
Little square duct is by symmetrical equal-sized top the 9th rectangle poly (methyl methacrylate) plate 2-9 and upper
Portion the 12nd rectangle poly (methyl methacrylate) plate 2-12, the most symmetrical equal-sized top the tenth rectangle have
Machine glass plate 2-10 and top the 11st rectangle poly (methyl methacrylate) plate 2-11 bonding way surround,
If be disposed with bolt stem from top to bottom in order to strengthen bonding strength in abutting edge simultaneously；Described top
Away from the square flange 4-2 400mm of top, the 3rd is connected on 3rd rectangle poly (methyl methacrylate) plate 2-3
Pressure guiding pipe 6-3；The 3rd is installed with square flange 4-2 junction, top at top large square passage
Reinforcing strip 7-3, on top, little square duct installs the 4th with upper circular flange 5-2 junction
Reinforcing strip 7-4；Extend to inner chamber inside the square flange 4-2 of top and closely block testpieces upper limb,
Fixation test part also prevents foreign body from passing from gap；
Described first pressure guiding pipe 6-1 and the 3rd pressure guiding pipe 6-3 is respectively with differential pressure pick-up two ends even
Connecing, described second pressure guiding pipe 6-2 is connected with pressure transducer, by pressure and differential pressure pick-up
Pressure in test and pressure reduction are measured, provides data for bottom nozzle drag characteristic analysis.
The rectangle poly (methyl methacrylate) plate of assay device is except also adding with bolt 9 with in addition to bonding way
Gu.It is evenly arranged the most altogether on bottom square flange 4-1 and tetra-limits of top square flange 4-2
12 bolts hole, in order to bolt is installed and connects two square flanges；Circular flange 5-2 and
5-1 is upper is evenly arranged 12 bolts hole the most altogether in annular, in order to bolt respectively with go out
Mouth segment pipe is connected with entrance pipeline.Bottom circular flange 5-1 and the side of substructure 1
Shape runner connecting place and upper circular flange 5-2 are connected with the square runner of superstructure 2
Place, flange is internal is the external square runner of round mouth.
As shown in Figures 2 and 3, transparent assay device generally square structure, overall length
1880mm, point upper and lower two parts, lower minister 1060mm, upper minister 820mm,
The middle bottom square flange 4-1 of dependence and top square flange 4-2 connects；Bottom large square leads to
It is square that the position of inner chamber bottom, road distance bottom square flange 4-1 114mm is provided with a circle
Ring rib, bottom nozzle testpieces is i.e. placed on this Q-RING rib；Square flange upper inner to
Testpieces upper limb is closely blocked in interior extension, and fixation test part also prevents foreign body from passing from gap；
Pacify on the position of middle square flange 352mm and 452mm of transparent test section 3 bottom distance
Equipped with the first pressure guiding pipe 6-1 and the second pressure guiding pipe 6-2, top the 3rd rectangle poly (methyl methacrylate) plate 2-3
Same extraction the 3rd pressure guiding pipe on the position of top distance top square flange 4-2 400mm
6-3, wherein the first pressure guiding pipe 6-1 and the 3rd pressure guiding pipe 6-3 is respectively with pressure transducer two ends even
Connecing, the second pressure guiding pipe 6-2 and pressure transducer connect, and pressure and differential pressure pick-up are in test
Pressure and pressure reduction measure.Visual test device top and bottom are respectively by circular method
Orchid is connected with stainless steel pipes, and respectively at upper and lower circular flange and middle square flange and square tube
Junction is installed reinforcing strip and is reinforced.
Foreign body in a fluid is mixed with fluid from bottom to top through bottom nozzle and whole during test
Assay device.
Claims (5)
1. nuclear reactor bottom nozzle foreign body filtering performance study visual test device, it is characterised in that:
Described visual test device is square structure, and material is lucite, including the substructure (1) being connected
With superstructure (2), described substructure (1) from top to bottom by the bottom large square passage being sequentially communicated,
The little square duct of bottom undergauge passage and bottom forms, and the bottom of described bottom large square passage connects bottom
Square flange (4-1), the top of the little square duct in bottom connects bottom circular flange (5-1)；Described bottom
Large square passage is by symmetrical equal-sized bottom the second rectangle poly (methyl methacrylate) plate (1-2) and bottom the 4th
Rectangle poly (methyl methacrylate) plate (1-4) and the most symmetrical equal-sized bottom the first rectangle poly (methyl methacrylate) plate (1-1)
Surround by bonding way with bottom the 3rd rectangle poly (methyl methacrylate) plate (1-3), simultaneously the cloth from top to bottom in abutting edge
If being equipped with bolt stem in order to strengthen bonding strength；Described bottom undergauge passage by symmetrical equal-sized under
Portion the 5th rectangle poly (methyl methacrylate) plate (1-5) and bottom the 8th rectangle poly (methyl methacrylate) plate (1-8) and symmetrical front and back
Equal-sized bottom the 6th rectangle poly (methyl methacrylate) plate (1-6) and bottom the 7th rectangle poly (methyl methacrylate) plate (1-7)
Surround by bonding way, if be disposed with bolt stem from top to bottom in order to strengthen bonding strength in abutting edge simultaneously；
The little square duct in described bottom by symmetrical equal-sized bottom the 9th rectangle poly (methyl methacrylate) plate (1-9) and
Bottom the 12nd rectangle poly (methyl methacrylate) plate (1-12), the most symmetrical equal-sized bottom the tenth organic glass of rectangle
Glass plate (1-10) and bottom the 11st rectangle poly (methyl methacrylate) plate (1-11) surround by bonding way, simultaneously viscous
If the place of connecing is disposed with bolt stem from top to bottom in order to strengthen bonding strength；Described bottom the 3rd rectangle lucite
And the first pressure guiding pipe is connected respectively away from 452mm away from bottom square flange (4-1) 352mm on plate (1-3)
(6-1) He the second pressure guiding pipe (6-2)；In bottom large square passage and bottom square flange (4-1) junction
Installing the first reinforcing strip (7-1), in bottom, little square duct is installed with bottom circular flange (5-1) junction
Second reinforcing strip (7-2)；In the bottom large square passage of bottom square flange (4-1) lower section predeterminated position
Being provided with circle Q-RING rib (8), bottom nozzle testpieces is i.e. placed on this Q-RING rib (8)；
Described superstructure (2) is from bottom to up by the top large square passage being sequentially communicated, top undergauge passage
Square duct little with top forms, and the top of described top large square passage connects top square flange (4-2),
The bottom of the little square duct in top connects upper circular flange (5-2)；Described top large square passage is by left and right
Symmetrical equal-sized top the second rectangle poly (methyl methacrylate) plate (2-2) and top the 4th rectangle poly (methyl methacrylate) plate
(2-4) and the most symmetrical equal-sized top the first rectangle poly (methyl methacrylate) plate (2-1) and top the 3rd square
Shape poly (methyl methacrylate) plate (2-3) surrounds by bonding way, if be disposed with bolt stem from top to bottom in abutting edge simultaneously
In order to strengthen bonding strength；Described top undergauge passage is had by symmetrical equal-sized top the 5th rectangle
Machine glass plate (2-5) and top the 8th rectangle poly (methyl methacrylate) plate (2-8) and the most symmetrical equal-sized on
Portion the 6th rectangle poly (methyl methacrylate) plate (2-6) and top the 7th rectangle poly (methyl methacrylate) plate (2-7) are enclosed by bonding way
Become, if be disposed with bolt stem from top to bottom in order to strengthen bonding strength in abutting edge simultaneously；The little side in described top
Shape passage is by symmetrical equal-sized top the 9th rectangle poly (methyl methacrylate) plate (2-9) and top the 12nd square
Shape poly (methyl methacrylate) plate (2-12), the most symmetrical equal-sized top the tenth rectangle poly (methyl methacrylate) plate (2-10)
Surround by bonding way with top the 11st rectangle poly (methyl methacrylate) plate (2-11), in abutting edge the most from top to bottom
If being disposed with bolt stem in order to strengthen bonding strength；On described top the 3rd rectangle poly (methyl methacrylate) plate (2-3) from
The 3rd pressure guiding pipe (6-3) is connected at top square flange (4-2) 400mm；Top large square passage with on
The 3rd reinforcing strip (7-3) is installed in portion's square flange (4-2) junction, little square duct and top circle on top
The 4th reinforcing strip (7-4) is installed in shape flange (5-2) junction；Top square flange (4-2) inner side is to inner chamber
Extending and closely block testpieces upper limb, fixation test part also prevents foreign body from passing from gap；
Described bottom square flange (4-1) and top square flange (4-2) shape adaptation, and be connected with each other,
Form overall visual test device；
Described first pressure guiding pipe (6-1) and the 3rd pressure guiding pipe (6-3) are connected with differential pressure pick-up two ends respectively,
Described second pressure guiding pipe (6-2) is connected with pressure transducer, by pressure and differential pressure pick-up in test
Pressure and pressure reduction measure, and provide data for bottom nozzle drag characteristic analysis.
Nuclear reactor bottom nozzle foreign body filtering performance study the most according to claim 1 visualization examination
Experiment device, it is characterised in that: described bottom square flange (4-1) and four limits of top square flange (4-2)
On be evenly arranged 12 bolts hole altogether.
Nuclear reactor bottom nozzle foreign body filtering performance study the most according to claim 1 visualization examination
Experiment device, it is characterised in that: in circle on described bottom circular flange (5-1) and upper circular flange (5-2)
Annular is evenly arranged 12 bolts hole.
Nuclear reactor bottom nozzle foreign body filtering performance study the most according to claim 1 visualization examination
Experiment device, it is characterised in that: the square runner phase of described bottom circular flange (5-1) and substructure (1)
At Lian, flange is internal is the external square runner of round mouth.
Nuclear reactor bottom nozzle foreign body filtering performance study the most according to claim 1 visualization examination
Experiment device, it is characterised in that: the square runner phase of described upper circular flange (5-2) and superstructure (2)
At Lian, flange is internal is the external square runner of round mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109215819A (en) * | 2018-09-10 | 2019-01-15 | 西安交通大学 | A kind of annular fuel internal channel is stifled to flow experimental provision and method |
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