CN109585046A - A kind of solution injects uniformly and hands over mixing device - Google Patents
A kind of solution injects uniformly and hands over mixing device Download PDFInfo
- Publication number
- CN109585046A CN109585046A CN201811473750.5A CN201811473750A CN109585046A CN 109585046 A CN109585046 A CN 109585046A CN 201811473750 A CN201811473750 A CN 201811473750A CN 109585046 A CN109585046 A CN 109585046A
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- small
- diameter circular
- straight tube
- diameter
- cirele bend
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Classifications
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C17/00—Monitoring; Testing ; Maintaining
- G21C17/001—Mechanical simulators
-
- 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
Abstract
Mixing device is injected uniformly and handed over the invention discloses a kind of solution, including flowing to the injection part that direction is in upstream along liquid, injection part is multi-layer annular structure, straight tube is injected including major diameter, major diameter injects straight tube and is communicated with the first small-diameter circular cirele bend that concentric circles is arranged and that radius is sequentially increased along its long axis direction, second small-diameter circular cirele bend, third small-diameter circular cirele bend, ..., n-th small-diameter circular cirele bend, the center of above-mentioned small-diameter circular cirele bend is on the vertical central axes of major diameter injection straight tube, major diameter injects straight tube and offers multiple multiple first through hole perpendicular to long axis direction along long axis direction.Present invention employs Multi-layer annular injection devices, it is ensured that can uniformly arrange tracer solution injection point in loop pipeline, can sufficiently make traced fluid converge in multiple positions and bottom liquid, while have lesser drag characteristic again.
Description
Technical field
The present invention relates to reactor entirety hydraulic analogies to test field, and in particular to a kind of solution is injected uniformly and handed over and loads in mixture
It sets.
Background technique
It is an important research content in reactor entirety hydraulic analogy test that lower chambers, which hand over mixed test, and main purpose is
It obtains through the flow shares from different loops in every group of simulated fuel assembly total flow, is set safely for reactor thermo-hydraulics
Meter provides reference and guidance.For polycyclic road reactor, a loop injection tracer solution is typically employed in experimental study
Mode to distinguish the fluid working substance of this loop and the fluid working substance of remaining loop, and surveyed in simulated fuel assembly inlet
Tracer solution concentration is measured to carry out flow shares calculating.For the reliability and authenticity of guarantee test data, hand in mixed test
It is required that must uniformly be mixed with the background solution in the loop before entering mock-up reactor entrance after tracer solution injection major loop
It closes.
The prior art hands over the difference of maximum concentration and Cmin after mixing to be at least 15%, and there are tracer solutions in heavy caliber
In slight drag loop pipeline with the mixed problem of background solution, not can guarantee tracer solution before entering mock-up reactor with background
Solution uniformly mixes.
Summary of the invention
In order to solve the above technical problems, mixing device is injected uniformly and handed over the purpose of the present invention is to provide a kind of solution, lead to
Multilayer annular injection pipeline and straight fin cyclone structure with angle are crossed, it is molten to solve tracer in slight drag heavy caliber loop pipeline
Liquid hands over mixed problem, it is ensured that uniformly friendship is mixed before entering mock-up reactor entrance for tracer solution and background solution, to test number
According to and interpretation of result established strong basis.
The present invention is achieved through the following technical solutions:
A kind of solution injects uniformly and hands over mixing device, including flowing to the injection part that direction is in upstream along liquid, injects
Portion is multi-layer annular structure, including major diameter injects straight tube, and major diameter injects straight tube and is communicated with concentric circles along its long axis direction
The first small-diameter circular cirele bend that be arranged and radius is sequentially increased, the second small-diameter circular cirele bend, third small-diameter circular
Cirele bend ..., the n-th small-diameter circular cirele bend, the center of above-mentioned small-diameter circular cirele bend major diameter inject straight tube
Vertical central axes on, major diameter inject straight tube offered along long axis direction it is multiple perpendicular to the multiple first logical of long axis direction
Hole, above-mentioned small-diameter circular cirele bend offered multiple second through-holes in its center of circle, adjacent small-diameter circular annular along its circumferential direction
The second through-hole on bend pipe is in dislocation arrangement；
It further include the eddy flow mixing unit in downstream, eddy flow mixing unit includes setting eddy flow annulus and is located in eddy flow annulus
The cylinder of the heart, by circumferentially equally distributed multiple fins for crossing the center of circle between cylinder and eddy flow annulus, fin is using welding
Mode be fixed between cylinder and annulus.
Multiple first through hole are distributed in arrival end and the outlet end of major diameter injection straight tube.
At least provided with a first through hole between adjacent small-diameter circular cirele bend.
Further sufficiently friendship is mixed by the mixed solution of the preliminary friendship by injection part for eddy flow mixing unit, by suitable between multiple fins
Hour hands or counterclockwise arrangement.
The inclination angle of fin is 10-80 °.The inclination angle of fin refers to the inclination angle between fin and fluid flow direction.
Compared with prior art, the present invention having the following advantages and benefits:
Present invention employs Multi-layer annular injection devices, it is ensured that can uniformly arrange that tracer is molten in loop pipeline
Liquid injection point can sufficiently make traced fluid converge in multiple positions and bottom liquid, while reduce injection device again to traced fluid
Resistance, in the eddy flow mixing unit of arranged downstream straight fin with angle, so that tracer solution and background solution are through swirl-flow devices
After secondary friendship is mixed, uniform mixing can be further promoted.
Detailed description of the invention
Attached drawing described herein is used to provide to further understand the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention.In the accompanying drawings:
Fig. 1 is schematic structural view of the invention.
Fig. 2 is schematic structural view of the invention.
Label and corresponding parts title in attached drawing:
1- major diameter injects straight tube, the 4th layer of small-diameter circular cirele bend of 2-, 3- first through hole, the second through-hole of 4-, the 5- wing
Piece, 6- cylinder, 7- eddy flow annulus.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment and attached drawing, to this
Invention is described in further detail, and exemplary embodiment of the invention and its explanation for explaining only the invention, are not made
For limitation of the invention.
Embodiment 1
As shown in Figure 1, 2,
1 injection part
Multi-layer annular injection-tube includes two parts, is major diameter injection straight tube 1 and small-diameter circular cirele bend respectively.
Straight pipe uses the stainless steel tube of DN25, and small-diameter circular cirele bend uses the stainless steel tube of DN10.It is snapped in the side of straight tube
It connects hole, and circular arc bend pipe is inserted into after welding hole and straight tube welding.Circular ring shape bend pipe using multilayer symmetric arrangement by the way of, can be
Four layers, each layer of center is on the vertical central axes of major diameter injection straight tube 1.Each small-diameter circular cirele bend from inside to outside
Bending radius is respectively 40mm, 70mm, 100mm and 130mm.Being using the benefit that multi-layer annular pipe is arranged can be in circuit circle
Tracer solution injection orifice is more uniformly arranged in shape pipeline, while there is lesser drag characteristic again.
2 injection orifice arrangements
Major diameter injects straight tube 1 and offers multiple multiple first through hole 3 perpendicular to long axis direction along long axis direction, on
State multiple second through-holes 4 that small-diameter circular cirele bend offered its center of circle along its circumferential direction, opening diameter 4mm.Tracer solution
Loop main pipeline is flowed into after into the second through-hole 4 inside this some holes, and is mixed with background solution.On straight pipe, close to note
8 first through hole 3 are symmetrically opened at entry portal end, symmetrically open 4 first through hole 3 far from injection inlet end.In circular ring shape bend pipe aperture
The principle for following adjacent two layers aperture angular position interlaced arrangement, for the circular ring shape bend pipe of innermost layer, blowing angle is
60 °, 120 °, 180 °, 240 °, the second small-diameter circular cirele bend, blowing angle are the vertical axes that straight tube 1 is injected with major diameter
Line is in 40 °, 90 °, 140 °, 220 °, 270 °, 320 °.Third small-diameter circular cirele bend, blowing angle are to inject with major diameter
The vertical axis of straight tube 1 is in 30 °, 70 °, 110 °, 150 °, 210 °, 250 °, 290 °, 330 °.4th small-diameter circular cirele bend 4,
Its blowing angle be with major diameter inject straight tube 1 vertical axis in 20 °, 37.5 °, 55 °, 72.5 °, 90 °, 107.5 °, 125 °,
142.5°,160°,200°,217.5°,235°,252..5°,270°,287.5°,305°,322.5°,340°.It is opened using above-mentioned
The main purpose of hole arrangement is to improve to hand over mixed efficiency, it is ensured that tracer solution after injection orifice ejection can with background solution into
The more uniform mixing of row.
3 straight 5 swirl-flow devices of fin with angle
In the eddy flow portion of multi-layer annular injection-tube arranged downstream straight fin 5 with angle for tracer solution and background solution
It sufficiently hands over mixed.The device contains multiple fins 5 in total, and inclination angle is 10-80 degree.From figure, the side of vertical paper inwards
It is flowed to as liquid.
6 fixed fins 5 are arranged, inclination angle is 30 degree, both can guarantee the mixed degree of optimal friendship or can reduce maximum
Fluid resistance.
It is fixed with eddy flow annulus 7 and the cylinder at center 6 by welding, form unified entirety.The rotation of periphery
It is welded with fixing seal plate on stream annulus 7, the sealing plate compress by a pair of of choma on pipeline close in actual installation
Envelope.Tracer solution after the device, can carry out sufficiently handing over background solution in major loop it is mixed, in loop maximum concentration with most
The deviation of small concentration is within 6%.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (5)
1. a kind of solution injects uniformly and hands over mixing device, which is characterized in that including flowing to the note that direction is in upstream along liquid
Portion is penetrated, injection part is multi-layer annular structure, including major diameter injection straight tube (1), and major diameter injects straight tube (1) along its long axis side
To being communicated with, the first small-diameter circular cirele bend that concentric circles is arranged and that radius is sequentially increased, the second small-diameter circular annular are curved
Pipe, third small-diameter circular cirele bend ..., the n-th small-diameter circular cirele bend, the center of above-mentioned small-diameter circular cirele bend exists
Major diameter inject straight tube (1) vertical central axes on, major diameter inject straight tube (1) along long axis direction offer it is multiple perpendicular to
Multiple first through hole (3) of long axis direction, above-mentioned small-diameter circular cirele bend offered multiple the of its center of circle along its circumferential direction
Two through-holes (4), the second through-hole (4) on adjacent small-diameter circular cirele bend is in dislocation arrangement；
Further include the eddy flow mixing unit in downstream, including setting annulus and positioned at the cylinder of circle ring center, cylinder and annulus it
Between by circumferentially it is equally distributed it is multiple cross the center of circle fin (5), fin (5) using weld by the way of be fixed on cylinder and circle
Between ring.
2. solution according to claim 1 injects uniformly and hands over mixing device, which is characterized in that multiple first through hole (3) point
Arrival end and outlet end of the cloth in major diameter injection straight tube (1).
3. solution according to claim 2 injects uniformly and hands over mixing device, which is characterized in that adjacent small-diameter circular annular is curved
At least provided with a first through hole (3) between pipe.
4. solution according to claim 1 injects uniformly and hands over mixing device, which is characterized in that pressed between multiple fins (5)
It arranges clockwise or counter-clockwise.
5. solution according to claim 4 injects uniformly and hands over mixing device, which is characterized in that the inclination angle of fin (5) is 10-
80°。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473750.5A CN109585046B (en) | 2018-12-04 | 2018-12-04 | Device for uniformly injecting and mixing solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811473750.5A CN109585046B (en) | 2018-12-04 | 2018-12-04 | Device for uniformly injecting and mixing solution |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109585046A true CN109585046A (en) | 2019-04-05 |
| CN109585046B CN109585046B (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811473750.5A Active CN109585046B (en) | 2018-12-04 | 2018-12-04 | Device for uniformly injecting and mixing solution |
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Citations (15)
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| JPS6141921A (en) * | 1984-08-03 | 1986-02-28 | Kawasaki Steel Corp | Injecting device for tracer gas used for flow rate measurement of gas in pipe |
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| CN109585046B (en) | 2022-02-01 |
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