CN209643060U - A kind of rotating windowless spallation target structure of liquid metal - Google Patents
A kind of rotating windowless spallation target structure of liquid metal Download PDFInfo
- Publication number
- CN209643060U CN209643060U CN201821900729.4U CN201821900729U CN209643060U CN 209643060 U CN209643060 U CN 209643060U CN 201821900729 U CN201821900729 U CN 201821900729U CN 209643060 U CN209643060 U CN 209643060U
- Authority
- CN
- China
- Prior art keywords
- diversion pipe
- liquid metal
- section
- interior
- rotating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 3
- 238000010992 reflux Methods 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 5
- 230000008602 contraction Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
- 241000233855 Orchidaceae Species 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 230000035755 proliferation Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000013077 target material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Hydraulic Turbines (AREA)
Abstract
The utility model provides a kind of upper rotating windowless spallation target structure of liquid metal for accelerator-driven sub-critical system, including interior diversion pipe, play propeller runner, guide vane, outer diversion pipe and line pipe, described propeller runner is fixed on the inner wall of the interior diversion pipe, the guide vane is fixed on the upper end of the interior diversion pipe, the outer flow-directing shroud is set to the outside of the interior diversion pipe and guide vane, the line pipe is set to the top of the interior diversion pipe and is fixedly connected with the outer diversion pipe, the interior diversion pipe includes circulation section and discharge section, the discharge section includes necking section and flared section.The utility model improves the distribution of target piece interior flow field, the reflux stagnation region in free surface region is greatly reduced, to enhance the thermotransport ability of spallation target piece by Optimal Structure Designing.
Description
Technical field
The utility model relates to handle the Accelerator Driven Subcritical transmuting system of nuke rubbish, more specifically to one
The rotating windowless spallation target structure of liquid metal in kind.
Background technique
Accelerator Driven Subcritical transmuting system (Accelerator Driven Sub-critical System, ADS)
It is most safely and effectively nuclear waste disposal technical solution internationally recognized at present.The high current proton beam that ADS uses accelerator to provide
Heavy metal target is bombarded, the high energy spallation neutron of generation drives and maintain the operation of subcritical reactor, is used to transmuting high radioactivity
Long lived nuclides achieve the purpose that proliferation utilizes.ADS mainly includes three accelerator, spallation target and reactor parts, wherein
Spallation target is to realize the critical component of " accelerator-reactor " coupling, decides the power level of total system, to system entirety
Performance and safety play the role of it is very important.
Spallation target is broadly divided into two class of solid spallation target and liquid spallation target according to its physical form, wherein liquid spallation
Target is divided into two kinds of the fenestrate spallation target of liquid and the windowless spallation target of liquid again.In recent years, the windowless spallation target of liquid metal increasingly obtains
To the favor of nuclear science expert, it is unique in that, liquid metal is not only as the target material that spallation reaction occurs, but also as biography
The cooling medium of defeated deposits heat.Spallation target that liquid metal is windowless is maintained inside accelerator by forming stable free surface
High vacuum state, guarantee that line effectively transmit and to be loaded directly into liquid metal fluid generation spallation by free surface anti-
It answers.
According to free surface generation type, for spallation target that liquid is windowless there are many type, upper rotation target is one of.The target piece
It is vertically installed at the fuel assembly center in reactor, liquid metal flows into from bottom to top from target piece bottom, becomes after impeller
For helical flow, following rotation side is constrained in wall surface and is risen, sends forth outward after wall surface constraint release and forms free surface.So
And upper rotation target, since the fluid flow rate of central area is smaller, holds during forming free surface at free surface center
It is easily formed and is detained, to generate reflux stagnation region, and then the export of line deposits heat in spallation target is influenced, to the normal of target piece
Work threatens.
Utility model content
In view of above-mentioned technical problem, in order to overcome the above-mentioned deficiencies of the prior art, the utility model proposes revolve in one kind
Formula liquid metal is windowless spallation target structure.
The utility model provides a kind of rotating windowless spallation target structure of liquid metal, including interior diversion pipe, rise propeller runner,
Guide vane, outer diversion pipe and line pipe, described propeller runner are fixed on the inner wall of the interior diversion pipe, and the guide vane is solid
Due to the upper end of the interior diversion pipe, the outer flow-directing shroud is set to the outside of the interior diversion pipe and guide vane, the beam
Flow tube is set to the top of the interior diversion pipe and is fixedly connected with the outer diversion pipe, the interior diversion pipe include circulation section and
Section is discharged, the discharge section includes necking section and flared section.
According to some embodiments, the necking section is the gradually reducing pipeline continuously reduced by arc-shaped, and the flared section is
By the continuous widened flaring pipeline of arc-shaped.
According to some embodiments, described propeller runner includes axis and along the equally distributed leaf of axis circumferencial direction
Piece.
According to some embodiments, the axis is cylinder, and both ends are the tip to smoothly transit with ellipse.
According to some embodiments, the blade is spiral vane, including is tilted with axial parallel section, along helix
Part and intermediate smooth transition.
According to some embodiments, the guide vane is fixed on the outside of the upper end outlet of the interior diversion pipe, described
Guide vane is multiple and is uniformly distributed along the circumferencial direction of the interior diversion pipe.
According to some embodiments, the guide vane is crescent shape.
According to some embodiments, there is gap between the guide vane and the inner wall of the outer diversion pipe.
According to some embodiments, the length of the circulation section of the interior diversion pipe can be according to proton beam in practical application
Incident depth and adjust.
According to some embodiments, the main part of the outer diversion pipe is circular tube shaped, and upper end is small-bore interface.
The rotating windowless spallation target structure of liquid metal provided by the utility model, has the advantages that
1, the discharge section of interior diversion pipe is in such a way that necking is flared again, and the liquid metal passed through is first by necking section
Wall surface effect of contraction and accelerate flowing velocity, and after through when flared section due to losing wall surface constraint and rapidly along being flared arc-shaped wall
Face tangent plane direction is sent forth, to accelerate the flow velocity of central area, is avoided being formed at free surface and is detained, can effectively subtract
Small reflux stagnation region, and then ensure the smooth export of line deposits heat in spallation target, it avoids causing the normal work of target piece
It threatens.
2, the outside of interior diversion pipe uses guide vane, flows the liquid metal sent forth along specific direction, avoids directly
On the inner wall for impacting outer diversion pipe, guide vane is mounted on the outside of interior diversion pipe discharge section, and the influence to forward spin flow is small, simultaneously
This structure design greatly reduces the spacing between interior diversion pipe and outer diversion pipe, makes target piece more compact structure, can be effective
Improve spallation neutron utilization rate.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the upper rotating windowless spallation target structure of liquid metal of the utility model embodiment；
Fig. 2 is that the structure of the interior diversion pipe of the upper rotating windowless spallation target structure of liquid metal of the utility model embodiment is shown
It is intended to；
Fig. 3 is that the structure for playing propeller runner of the upper rotating windowless spallation target structure of liquid metal of the utility model embodiment is shown
It is intended to；
Fig. 4 is that the structure of the guide vane of the upper rotating windowless spallation target structure of liquid metal of the utility model embodiment is shown
It is intended to；
Fig. 5 is the top view of Fig. 4.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, implement below in conjunction with the utility model
The attached drawing of example, is clearly and completely described the technical solution of the utility model.Obviously, described embodiment is this reality
With novel one embodiment, instead of all the embodiments.Based on described the embodiments of the present invention, this field is general
Logical technical staff every other embodiment obtained under the premise of being not necessarily to creative work, belongs to the utility model protection
Range.
Unless otherwise defined, the technical term or scientific term that the utility model uses are should be belonging to the utility model
The ordinary meaning that personage in field with general technical ability is understood.
As shown in Figure 1, the upper rotating windowless spallation target structure 100 of liquid metal of the utility model embodiment includes interior water conservancy diversion
Pipe 10 plays propeller runner 20, guide vane 30, outer diversion pipe 40 and line pipe 50.It plays propeller runner 20 and is fixed on interior diversion pipe 10
Inner wall, guide vane 30 are fixed on the upper end of interior diversion pipe 10, and outer diversion pipe 40 is sheathed on interior diversion pipe 10 and guide vane 30
Outside, line pipe 50 is set to the top of interior diversion pipe 10 and is fixedly connected with outer diversion pipe 40.
Single lined arrows are liquid metal flows direction in Fig. 1, and double-lined arrow is the proton beam direction of motion.
Also referring to Fig. 1 and Fig. 2, interior diversion pipe 10 includes circulation section 11 and discharge section 12.The section 11 that circulates includes entrance
Section 13 and upper rotation section 14.13 lower end of entrance is equipped with entrance 132, fixed of 13 upper end of entrance propeller runner 20.Circulation section 11 be
Circular tube shaped, the internal diameter of circulation section 11 are D1.Circulate section 11 length can according to the incident depth of proton beam in practical application and
Adjustment.It is appreciated that incident depth of the proton beam of different-energy in liquid metal is different, it can be in advance according to line condition
Incident depth is calculated, then determines the length of circulation section 11.Incident depth of the proton beam in liquid metal is bigger, and circulate section
11 length is longer.It includes necking section 15 and flared section 16 that section 12, which is discharged,.Necking section 15 is tapered continuously to reduce by arc-shaped
Pipeline.Diameter D at the minimum diameter of necking section 152For the internal diameter D for the section 11 that circulates10.7-0.9 times.In the present embodiment, necking section
Diameter D at 15 minimum diameter2For the internal diameter D for the section 11 that circulates10.8 times.Flared section 16 is by the continuous widened flaring of arc-shaped
Pipeline.Diameter D at the maximum inner diameter of flared section 163For the internal diameter D for the section 11 that circulates11.1-1.5 times.In the present embodiment, flared section
Diameter D at 16 maximum inner diameter3For the internal diameter D for the section 11 that circulates11.2 times.16 upper end of flared section is equipped with outlet 162.
In the present embodiment, liquid metal is flowed into from the entrance 132 of interior diversion pipe 10, through entrance 13 upward and through a rotation
Impeller 20 is acted on upper rotation section 14 helically formula uplink and entrance discharge section 12 by a propeller runner 20 is played, is flowing through discharge 12 mistake of section
Cheng Zhong, liquid metal are accelerated flowing velocity by 15 wall surface effect of contraction of necking section first, and after through when flared section 16 due to lose
It goes wall surface to constrain and is sent forth along flaring arc-shaped wall surface tangent plane direction rapidly, to form one in discharge 12 central area of section
Recessed free surface 17, last liquid metal are flowed out by the outlet 162 of interior diversion pipe 10.
Also referring to Fig. 1 and Fig. 3, plays propeller runner 20 and is fixed on the inner wall at 13 upper end of entrance of interior diversion pipe 10,
When liquid metal has flowed through propeller runner 20, by playing propeller runner 20 and helically formula uplink.Playing propeller runner 20 includes axis
21 and along the equally distributed blade 22 of 21 circumferencial direction of axis.Axis 21 is cylinder, and the outer diameter of axis 21 is interior diversion pipe 10
Circulation section 11 internal diameter D11/5, the length of axis 21 is 10-15 times of its outer diameter.The both ends of axis 21 are with ellipse
The tip that shape smoothly transits, to reduce the influence of fluid flow.Blade 22 is the spiral extended along the axial direction of axis 21
Shape blade.The structure of blade 22 is divided into three parts, i.e., with axial parallel section 222, along helix sloping portion 224 and in
Between smooth transition 226.22 two sides of blade are 100-140 degree relative to the angle α of central axis.In the present embodiment, α is
130 degree.In the present embodiment, the quantity of blade 22 is 6, it will be understood that the quantity of blade 22 may be other numerical value, such as
4,8,10 etc..
Also referring to Fig. 1, Fig. 4 and Fig. 5, guide vane 30 is fixed on the outside of the upper end outlet 162 of interior diversion pipe 10.
In the present embodiment, guide vane 30 is multiple and is uniformly distributed along the circumferencial direction of interior diversion pipe 10.Guide vane 30 is crescent moon
Shape, two sides are 15-60 degree relative to the angle β of central axis.In the present embodiment, β is 30 degree.Liquid metal is by interior water conservancy diversion
Flow direction can be changed when flowing through guide vane 30 after flowing out for the outlet 162 of pipe 10, to reduce outside fluid impact in diversion pipe 40
The case where wall, so that fluid be avoided to turn back back the top of free surface 17, and then guarantees that fluid flows downward and steady after water conservancy diversion
Fixed discharge.There is gap between guide vane 30 and the inner wall of outer diversion pipe 40, downlink liquid metal can be made than smoother
Ground passes through and flows out, to reduce the influence to upstream fluid.
It is appreciated that by the way that guide vane 30 is arranged in the outlet of interior diversion pipe 10, so that the liquid metal sent forth is along special
Determine direction flowing, avoids being directly impinging on the inner wall of outer diversion pipe 40, guide vane 30 is mounted on the discharge of interior diversion pipe 10
The outside of section 12, the influence to forward spin flow is small, while the design of this structure greatly reduces interior diversion pipe 10 and outer diversion pipe
Spacing between 40 makes target piece more compact structure, can effectively improve spallation neutron utilization rate.
As shown in Figure 1, outer diversion pipe 40 is sheathed on the outside of interior diversion pipe 10 and guide vane 30, and with interior diversion pipe 10
It is coaxial fixed.The main part of outer diversion pipe 40 is circular tube shaped, and upper end is small-bore interface, and the upper end of outer diversion pipe 40 passes through method
Orchid connect with line pipe 50.The internal diameter D of the main part of outer diversion pipe 404For the internal diameter D of the circulation section 11 of interior diversion pipe 101's
1.5-3 again.
As shown in Figure 1, line pipe 50 is set to the top of interior diversion pipe 10 and coaxial fixed with outer diversion pipe 40.Line pipe
50 be circular tube shaped.Proton beam enters from line pipe 50, and is loaded into liquid metal at free surface 17, final fluid
It is flowed out from the gap between interior diversion pipe 10 and outer diversion pipe 40.
The upper rotating windowless spallation target structure 100 of liquid metal of the utility model embodiment, due to the row of interior diversion pipe 10
Section 12 in such a way that necking is flared again, accelerated by 15 wall surface effect of contraction of necking section first by the liquid metal passed through out
Flowing velocity, and after through when flared section 16 due to lose wall surface constraint and rapidly along flaring arc-shaped wall surface tangent plane direction spray
It dissipates, to accelerate the flow velocity of central area, avoids being formed at free surface and be detained, reflux stagnation region can be effectively reduced,
And then ensure the smooth export of line deposits heat in spallation target, it avoids threatening to the normal work of target piece.Moreover, interior lead
Guide vane 30 is arranged in the outlet of flow tube 10, flows the liquid metal sent forth along specific direction, avoids being directly impinging outer lead
On the inner wall of flow tube 40, guide vane 30 is mounted on the outside of the discharge section 12 of interior diversion pipe 10, and the influence to forward spin flow is small, together
When the design of this structure greatly reduce the spacing between interior diversion pipe 10 and outer diversion pipe 40, make target piece more compact structure,
Spallation neutron utilization rate can be effectively improved.
For the embodiments of the present invention, it is also necessary to explanation, in the absence of conflict, the reality of the utility model
Applying the feature in example and embodiment can be combined with each other to obtain new embodiment.
More than, only specific embodiment of the present utility model, but protection scope of the utility model is not limited thereto,
The protection scope of the utility model should be subject to the protection scope in claims.
Claims (10)
1. a kind of rotating windowless spallation target structure of liquid metal, which is characterized in that including interior diversion pipe, play propeller runner, water conservancy diversion
Blade, outer diversion pipe and line pipe, described propeller runner are fixed on the inner wall of the interior diversion pipe, and the guide vane is fixed on
The upper end of the interior diversion pipe, the outer flow-directing shroud are set to the outside of the interior diversion pipe and guide vane, the line pipe
It is set to the top of the interior diversion pipe and is fixedly connected with the outer diversion pipe, the interior diversion pipe includes circulation section and discharge
Section, the discharge section includes necking section and flared section.
2. the rotating windowless spallation target structure of liquid metal according to claim 1, which is characterized in that the necking section is
The gradually reducing pipeline continuously reduced by arc-shaped, the flared section are by the continuous widened flaring pipeline of arc-shaped.
3. the rotating windowless spallation target structure of liquid metal according to claim 1, which is characterized in that described propeller runner
Including axis and along the equally distributed blade of axis circumferencial direction.
4. the rotating windowless spallation target structure of liquid metal according to claim 3, which is characterized in that the axis is circle
Cylindricality, both ends are the tip to smoothly transit with ellipse.
5. the rotating windowless spallation target structure of liquid metal according to claim 3, which is characterized in that the blade is spiral shell
Revolve shape blade, including with axial parallel section, along helix sloping portion and intermediate smooth transition.
6. the rotating windowless spallation target structure of liquid metal according to claim 1, which is characterized in that the guide vane
It is fixed on the outside of the upper end outlet of the interior diversion pipe, the guide vane is multiple and along the interior diversion pipe circumference sides
To being uniformly distributed.
7. the rotating windowless spallation target structure of liquid metal according to claim 6, which is characterized in that the guide vane
For crescent shape.
8. the rotating windowless spallation target structure of liquid metal according to claim 1, which is characterized in that the guide vane
There is gap between the inner wall of the outer diversion pipe.
9. the rotating windowless spallation target structure of liquid metal according to claim 1, which is characterized in that the interior diversion pipe
The length of circulation section can be adjusted according to the incident depth of proton beam in practical application.
10. the rotating windowless spallation target structure of liquid metal according to claim 1, which is characterized in that the outer water conservancy diversion
The main part of pipe is circular tube shaped, and upper end is small-bore interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821900729.4U CN209643060U (en) | 2018-11-19 | 2018-11-19 | A kind of rotating windowless spallation target structure of liquid metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821900729.4U CN209643060U (en) | 2018-11-19 | 2018-11-19 | A kind of rotating windowless spallation target structure of liquid metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209643060U true CN209643060U (en) | 2019-11-15 |
Family
ID=68473016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821900729.4U Withdrawn - After Issue CN209643060U (en) | 2018-11-19 | 2018-11-19 | A kind of rotating windowless spallation target structure of liquid metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209643060U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109257864A (en) * | 2018-11-19 | 2019-01-22 | 中国科学院近代物理研究所 | A kind of rotating windowless spallation target structure of liquid metal |
| CN109257864B (en) * | 2018-11-19 | 2024-07-02 | 中国科学院近代物理研究所 | Upspin type liquid metal windowless spallation target component |
-
2018
- 2018-11-19 CN CN201821900729.4U patent/CN209643060U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109257864A (en) * | 2018-11-19 | 2019-01-22 | 中国科学院近代物理研究所 | A kind of rotating windowless spallation target structure of liquid metal |
| CN109257864B (en) * | 2018-11-19 | 2024-07-02 | 中国科学院近代物理研究所 | Upspin type liquid metal windowless spallation target component |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3625820A (en) | Jet pump in a boiling water-type nuclear reactor | |
| CN108361205B (en) | Centrifugal pump impeller and LNG immersed pump comprising same | |
| JP2015502531A (en) | Pressurized water reactor with an upper plenum including a cross-flow blocking weir | |
| US20110081250A1 (en) | Hydro-kinetic transport wheel | |
| CN210220743U (en) | Unpowered rotary spray cooling tower | |
| US5124115A (en) | Bwr series pump recirculation system | |
| KR20140057275A (en) | Pressurized water reactor with reactor coolant pumps operating in the downcomer annulus | |
| CN103743257B (en) | Efficient hydrodynamic cooling tower | |
| CN209643060U (en) | A kind of rotating windowless spallation target structure of liquid metal | |
| US5295171A (en) | Combined jet pump and internal pump rercirculation system | |
| CN105805044B (en) | Log spiral guide vane and its design method of the one seed nucleus main pump with deviated splitter vane | |
| JPH0727052B2 (en) | A method for providing load following capability to a natural circulation boiling water reactor with free surface vapor separation. | |
| CN108757571B (en) | Design method of square box type bidirectional water inlet flow passage | |
| CN104853515B (en) | The free surface of the upper rotating windowless Spallation neutron target part of liquid forms component | |
| CN109257864A (en) | A kind of rotating windowless spallation target structure of liquid metal | |
| CN114651311A (en) | Molten fuel reactor and annular ring plate for molten fuel reactor | |
| CN111535973A (en) | Low specific speed double-inlet volute mixed-flow water turbine suitable for cooling tower | |
| CN103939381B (en) | The design method of the one seed nucleus main pump pump housing | |
| CN111594369A (en) | Mixed-flow water turbine with double-inlet volute suitable for cooling tower | |
| CN110410164A (en) | A kind of converter and heater for rolling steel waste heat integrated power generation system | |
| CN109257864B (en) | Upspin type liquid metal windowless spallation target component | |
| Haryadi et al. | Experimental study on 3D vortex gravitational turbine runner | |
| CN213400579U (en) | Passive cooling device for containment | |
| JP2019508629A (en) | Pumps for nuclear applications | |
| CN217682441U (en) | Diversion diffusion structure and washing pump and washing electric appliance with same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191115 Effective date of abandoning: 20240702 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191115 Effective date of abandoning: 20240702 |