CN108302283B - External antiknock and impact-resistant protection device for exposed circular pipeline - Google Patents
External antiknock and impact-resistant protection device for exposed circular pipeline Download PDFInfo
- Publication number
- CN108302283B CN108302283B CN201810291765.3A CN201810291765A CN108302283B CN 108302283 B CN108302283 B CN 108302283B CN 201810291765 A CN201810291765 A CN 201810291765A CN 108302283 B CN108302283 B CN 108302283B
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- layer
- polycarbonate
- double
- hollow
- polycarbonate tube
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- 239000004417 polycarbonate Substances 0.000 claims abstract description 76
- 229920000515 polycarbonate Polymers 0.000 claims abstract description 76
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- 238000002955 isolation Methods 0.000 claims abstract description 11
- 238000013016 damping Methods 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 90
- 230000035939 shock Effects 0.000 claims description 17
- 239000011241 protective layer Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 14
- 229920001971 elastomer Polymers 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 10
- 239000011229 interlayer Substances 0.000 claims description 9
- 239000006260 foam Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 230000001012 protector Effects 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 4
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 4
- 239000003365 glass fiber Substances 0.000 claims description 4
- -1 polyethylene Polymers 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 238000004880 explosion Methods 0.000 abstract description 8
- 238000006073 displacement reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/04—Devices damping pulsations or vibrations in fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
Abstract
The invention discloses an external antiknock impact-resistant protection device for a circular pipeline for open pavement, belonging to the field of pipeline engineering; the technical problem to be solved is to provide a pipeline protection device design capable of effectively resisting explosion and impact damage; the technical scheme adopted for solving the technical problems is as follows: the outer antiknock impact-resistant protection device for the exposed circular pipeline comprises an exposed circular pipe, wherein a double-layer flexible protection layer is arranged on the outer surface of the exposed circular pipe and comprises an outer hollow layer and an inner hollow layer, foamed aluminum is filled in the outer hollow layer, a plurality of polycarbonate pipes, steel wire meshes and pull-connection steel wires are arranged in the inner hollow layer, and a damping isolation layer is arranged between the exposed circular pipe and the double-layer flexible protection layer; the invention can be widely applied to the field of pipeline engineering.
Description
Technical Field
The invention relates to an external antiknock impact-resistant protection device for a surface-paved round pipeline, belonging to the technical field of pipeline engineering.
Background
In pipeline engineering, a pipeline is taken as the most important component, once the pipeline is destroyed, the whole conveying line is paralyzed, and if flammable and explosive or toxic substances are conveyed, the damage is more serious. Meanwhile, if the conditions of collision of heavy-load vehicles or deliberate damage of terrorists and the like occur during the use of the exposed pipeline, the pipeline is damaged, and the stability and the safety of the pipeline transmission are affected. For the uncertainty of time and space of explosion and impact accidents, it is necessary to provide an antiknock and impact-resistant device for important exposed pipelines.
Disclosure of Invention
The invention overcomes the defects existing in the prior art, and provides the pipeline which can ensure the integral structural strength of the pipeline and effectively resist explosion and impact damage.
In order to solve the technical problems, the invention adopts the following technical scheme: be used for obviously spreading circular pipeline outer antiknock impact protector, obviously spread the pipe surface and be provided with double-deck flexible inoxidizing coating, double-deck flexible inoxidizing coating includes outer hollow layer and inlayer hollow layer, the packing has foamed aluminium in the outer hollow layer, be provided with a plurality of polycarbonate pipes in the inlayer hollow layer, wire mesh, pull-in steel wire, wire mesh separates the inlayer hollow layer into inside and outside two regions, the outside of inlayer hollow layer is set up to the polycarbonate pipe, pull-in steel wire alternates and sets up in the inlayer hollow layer, be provided with the shock attenuation isolation layer between obviously spreading pipeline and the double-deck flexible inoxidizing coating.
The double-layer flexible protective layer comprises a plurality of arc double-layer hollow tubes, wherein the arc double-layer hollow tubes are sequentially provided with an outer curved panel, an interlayer panel, an inner curved panel and a side sealing plate from outside to inside, inner semicircular arc end sealing plates are arranged at the inner sides of two ends of the arc double-layer hollow tubes, outer semicircular arc end sealing plates are arranged at the outer sides of the two ends of the arc double-layer hollow tubes, the circular arcs of the inner semicircular arc end sealing plates at the two ends face opposite to each other to form a convex-concave structure, and interface reinforcing steel tubes are arranged at the joints of the arc double-layer hollow tubes.
The gaps of the hollow layer of the inner layer are filled with rubber particles, the rubber particles are 2-4mm EPDM rubber particles or other natural rubber particles, and the density is 1.4-1.8 g/cm 3 。
The outer surface of the double-layer flexible protective layer is provided with an outer protective layer, the outer protective layer is made of a multi-layer polyethylene anti-corrosion material, and the polyethylene anti-corrosion adhesive tape is used for winding more than 3 layers, so that the protective device can be prevented from being corroded, and the appearance of the protective device is consistent with that of a common pipeline to play a camouflage role.
The shock absorption isolation layer is polyurethane rigid foam mixed with glass fiber, and the density of the glass fiber is 0.6-0.7 g/cm 3 Is added with a coupling agent with the concentration of 2% -2.5%.
The polycarbonate tube comprises a first polycarbonate tube, a second polycarbonate tube, a third polycarbonate tube and a fourth polycarbonate tube, wherein the first polycarbonate tube, the second polycarbonate tube, the third polycarbonate tube and the fourth polycarbonate tube are tangentially combined, the inner diameter of the first polycarbonate tube is 3 times that of the outer diameter of the fourth polycarbonate tube, the outer diameter of the second polycarbonate tube is 1.5 times that of the fourth polycarbonate tube, the outer diameter of the third polycarbonate tube is 0.5 times that of the fourth polycarbonate tube, namely the first polycarbonate tube is provided with two second polycarbonate tubes, four third polycarbonate tubes and two fourth polycarbonate tubes.
The outer layer end part closing plate is provided with an I-shaped groove, and an I-shaped connecting piece is arranged in the I-shaped groove.
The interface reinforced steel pipe is filled with foamed aluminum.
The foamed aluminum is made of pure aluminum with yield strength of more than 50Mpa, and is made into a foamed aluminum structure with the cell size of 2-3mm, the relative density of 0.4-0.6 and the porosity of 68-78%, and then the foamed aluminum structure is pressed into a position to be filled.
The outer curved plate, the interlayer plate, the inner curved closing plate, the outer end closing plate and the Q345R are made of materials.
Compared with the prior art, the invention has the following beneficial effects.
1. The hollow rigid structure is combined with the internal flexible energy consumption structure, and the double-layer hollow structure formed by the inner arc panel, the middle arc panel and the outer arc panel can effectively resist most of shock waves and flying sheets, and meanwhile, the outer hollow structure is filled with foam aluminum, so that the advantages of high damping performance and high impact energy absorption efficiency of the foam aluminum are utilized, and after the outer arc panel is damaged by the shock waves, energy can be effectively absorbed, so that the damage to the internal structure is reduced. The energy after the large deformation of the middle arc plate is absorbed and dispersed by further utilizing the deformation displacement of the combined polycarbonate tube and the steel wire mesh filled in the inner hollow structure.
2. The combined polycarbonate tube is internally tangent to a large-diameter polycarbonate tube, and is internally tangent to other polycarbonate tubes with different diameters for filling, when the polycarbonate tube is subjected to explosion shock waves, the large-diameter polycarbonate tube disperses the shock waves into a plurality of internally tangent small polycarbonate tubes, and then the deformation of the small-diameter polycarbonate tube is used for absorbing energy, so that the shock waves can be effectively eliminated and absorbed, meanwhile, the steel wire mesh arranged inside can also generate deformation and displacement, a certain effect of absorbing energy can be achieved, rubber particles are filled in the gaps inside, the friction resistance of the rubber particles can be received in the displacement process of the polycarbonate tube and the steel wire mesh, the energy consumption effect is achieved, meanwhile, the steel wire mesh is arranged inside, the inner layer region can be separated, an isolation layer is formed inside, the impact explosion does not affect the inner structure before the steel mesh wire is not damaged, after the steel wire mesh is damaged, the combined polycarbonate tube is displaced to the inner side region, and the impact wave energy is further weakened through the buffering of the rubber particles.
3. The arc double-layer hollow pipes are connected through the end closing plates facing opposite directions, and meanwhile, the I-shaped connecting pieces are arranged at the connecting positions of the outer closing plates to be connected in a wedge-shaped mode, so that the hollow structures are tightly connected.
Drawings
The invention is further described below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic view of the structure of a polycarbonate tube according to the present invention.
FIG. 3 is a schematic view of a panel structure of a partition.
Fig. 4 is a schematic diagram of a side seal plate structure.
FIG. 5 is a schematic view of the structure of an arc-shaped double-layer hollow tube according to the present invention.
Fig. 6 is a schematic view of the installation of the present invention on a pipe.
In the drawing, an outer curved panel 1, an interlayer panel 2, an inner curved panel 3, a semicircular arc-shaped end closing plate 4, an outer end closing plate 5, foamed aluminum 6, a polycarbonate tube 7, a steel wire mesh 8, a pull-in steel wire 9, an I-shaped connecting piece 10, an outer protective layer 11, a damping interlayer 12, an interface reinforcing steel tube 13, a side sealing plate 14, rubber particles 15, a small circular ring 16, a first polycarbonate tube 71, a second polycarbonate tube 72, a third polycarbonate tube 73 and a fourth polycarbonate tube 74 are arranged.
Detailed Description
As shown in figures 1-6, the external antiknock impact protection device for the well-spread circular pipeline comprises a well-spread circular pipe, wherein the outer surface of the well-spread circular pipe is provided with a double-layer flexible protection layer, the double-layer flexible protection layer comprises an outer hollow layer and an inner hollow layer, the outer hollow layer is filled with foamed aluminum 6, the inner hollow layer is provided with a plurality of polycarbonate pipes 7, a steel wire mesh 8 and pull-in steel wires 9, the steel wire mesh 8 divides the outer hollow layer into an inner area and an outer area, the polycarbonate pipes 7 are arranged at the outer side of the inner hollow layer, the pull-in steel wires 9 are inserted into the inner hollow layer, one end of the pull-in steel wires 9 is connected with a small circular ring 16, and the other end of the pull-in steel wires is connected with the steel wire mesh 8, so that the steel wire mesh is suspended on an isolation panel, a shock absorption isolation layer 12 is arranged between the well-spread pipeline and the double-layer flexible protection layer, the double-layer flexible protection layer comprises a plurality of arc-shaped double-layer hollow pipes, the arc double-layer hollow pipe is sequentially provided with an outer curved panel 1, an interlayer panel 2, an inner curved panel 3 and a side sealing plate 14 from outside to inside, inner semicircular arc end sealing plates 4 are arranged at the inner sides of two ends of the arc double-layer hollow pipe, outer end sealing plates 5 are arranged at the outer sides of two ends of the arc double-layer hollow pipe, the circular arcs of the inner semicircular arc end sealing plates 4 at the two ends face opposite directions, the joint of the arc double-layer hollow pipes is provided with an interface reinforced steel pipe 13, rubber particles 15 are filled in the gaps of the inner hollow layer, the outer surface of the double-layer flexible protective layer is provided with an outer protective layer 11, the outer protective layer 11 is made of a multi-layer polyethylene corrosion-resistant material, the shock absorption isolation layer 12 is made of polyurethane rigid foam mixed with glass fibers, the polycarbonate pipe 7 comprises a first polycarbonate pipe 71, a second polycarbonate pipe 72, a third polycarbonate pipe 73 and a fourth polycarbonate pipe 74, the first polycarbonate tube 71, the second polycarbonate tube 72, the third polycarbonate tube 73 and the fourth polycarbonate tube 74 are tangentially combined, a plurality of second polycarbonate tubes 72, third polycarbonate tubes 73 and fourth polycarbonate tubes 74 are arranged in the first polycarbonate tube 71, I-shaped grooves are formed in the outer-layer end closing plate 5, I-shaped connectors 10 are arranged in the I-shaped grooves, foam aluminum 6 is filled in the interface reinforced steel tube 13, and materials used for the outer curved plate 1, the interlayer plate 2, the inner curved plate 2, the semicircular arc end closing plate 4 and the outer-layer end closing plate 5 are Q345R.
When the invention is used, a plurality of arc double-layer hollow pipes are clamped together through an I-shaped structure, a tight protective layer is formed on the outer surface of an exposed pipeline, an outer curved plate 1, an interlayer plate 2, an inner curved plate 2, a semicircular arc end closing plate 4, an outer layer end closing plate 5 and a side sealing plate 14 are hot rolled Q345R steel materials with the thickness of 2mm, adjacent semicircular arc end closing plates 4 are in concave-convex connection, an interface reinforcing steel pipe 13 is arranged at the connection position, the I-shaped connecting piece 10 is inserted after the outer layer end closing plates 5 are connected, the filling is ensured to be compact, the invasion of shock waves from gaps is prevented, the hollow rigid structure is combined with an inner flexible energy consumption structure, the double-layer hollow structure consisting of the inner layer, the middle layer and the outer layer arc plates can effectively resist most shock waves and flying pieces, and foam aluminum is filled by utilizing the outer layer hollow structure, the composite polycarbonate tube 7 and the steel wire mesh 8 filled in the inner hollow structure are deformed and displaced to absorb and disperse the energy after the middle arc plate is greatly deformed, the composite polycarbonate tube 7 is internally tangent with a large-diameter polycarbonate tube, other polycarbonate tubes with different diameters are internally tangent and filled, when the explosion shock wave is suffered, the large-diameter polycarbonate tube disperses the shock wave into a plurality of small steel tubes which are internally tangent, the deformation of the small-diameter polycarbonate tube is used to absorb the energy, the shock wave can be effectively eliminated and absorbed, and the steel wire mesh arranged in the inner part can also generate deformation and displacement, can play the effect of absorbing energy, simultaneously pack in the space in inside and have rubber granule, can receive rubber granule's frictional resistance at polycarbonate pipe and the in-process of steel wire mesh displacement, can play the effect of energy-absorbing power consumption, simultaneously at the fixed steel wire that is provided with in inside, the steel wire passes through little ring 16 and draws to connect fixedly, can separate the inlayer region, form the isolation layer in inside, before making the steel mesh line undamaged, impact explosion does not influence inner structure, after the steel wire mesh breaks, the combination polycarbonate pipe displacement is to the inboard region, through rubber granule's buffering, can further weaken impact wave energy, after above-mentioned structure is destroyed, still polyurethane foam shock attenuation isolation layer, do last energy-absorbing power consumption protection, through the layer upon layer transmission, finally reach the energy that absorbs the outside explosion impact of consumption pipeline, protect inner structure.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (5)
1. Be used for obviously spreading circular pipeline outer antiknock protector that shocks resistance, including obviously spreading pipe, its characterized in that: the outer surface of the exposed-paving circular tube is provided with a double-layer flexible protective layer, the double-layer flexible protective layer comprises an outer hollow layer and an inner hollow layer, foam aluminum (6) is filled in the outer hollow layer, a plurality of polycarbonate tubes (7), steel wire meshes (8) and pull-connection steel wires (9) are arranged in the inner hollow layer, the steel wire meshes (8) divide the inner hollow layer into an inner region and an outer region, the polycarbonate tubes (7) are arranged on the outer side of the inner hollow layer, the pull-connection steel wires (9) are arranged in the inner hollow layer in an penetrating manner, and a damping isolation layer (12) is arranged between the exposed-paving pipeline and the double-layer flexible protective layer;
the double-layer flexible protective layer comprises a plurality of arc-shaped double-layer hollow tubes, wherein the arc-shaped double-layer hollow tubes are sequentially provided with an outer curved panel (1), an interlayer panel (2), an inner arc panel (3) and a side sealing plate (14) from outside to inside, inner semicircular arc-shaped end sealing plates (4) are arranged at the inner sides of two ends of the arc-shaped double-layer hollow tubes, outer layer end sealing plates (5) are arranged at the outer sides of two ends of the arc-shaped double-layer hollow tubes, the circular arcs of the inner semicircular arc-shaped end sealing plates (4) at the two ends face opposite directions, and interface reinforcing steel tubes (13) are arranged at the joints of the arc-shaped double-layer hollow tubes; the interface reinforced steel pipe (13) is filled with foamed aluminum (6);
rubber particles (15) are filled in the gaps of the hollow layer of the inner layer;
the polycarbonate tube (7) comprises a first polycarbonate tube (71), a second polycarbonate tube (72), a third polycarbonate tube (73) and a fourth polycarbonate tube (74), wherein the first polycarbonate tube (71), the second polycarbonate tube (72), the third polycarbonate tube (73) and the fourth polycarbonate tube (74) are tangentially combined, and a plurality of second polycarbonate tubes (72), the third polycarbonate tube (73) and the fourth polycarbonate tube (74) are arranged in the first polycarbonate tube (71).
2. The external antiknock impact protector for a surface-paved round pipe as set forth in claim 1, wherein: the outer surface of the double-layer flexible protective layer is provided with an outer protective layer (11), and the outer protective layer (11) is made of a multi-layer polyethylene anti-corrosion material.
3. The external antiknock impact protector for a surface-paved round pipe as set forth in claim 1, wherein: the shock absorption isolation layer (12) is polyurethane rigid foam mixed with glass fibers.
4. The external antiknock impact protector for a surface-paved round pipe as set forth in claim 1, wherein: an I-shaped groove is formed in the outer-layer end part closing plate (5), and an I-shaped connecting piece (10) is arranged in the I-shaped groove.
5. The external antiknock impact protector for a surface-paved round pipe as set forth in claim 1, wherein: the outer curved panel (1), the interlayer panel (2), the inner curved panel (3), the semicircular arc end closing plate (4) and the outer layer end closing plate (5) are made of Q345R.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291765.3A CN108302283B (en) | 2018-04-03 | 2018-04-03 | External antiknock and impact-resistant protection device for exposed circular pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810291765.3A CN108302283B (en) | 2018-04-03 | 2018-04-03 | External antiknock and impact-resistant protection device for exposed circular pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108302283A CN108302283A (en) | 2018-07-20 |
| CN108302283B true CN108302283B (en) | 2024-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810291765.3A Active CN108302283B (en) | 2018-04-03 | 2018-04-03 | External antiknock and impact-resistant protection device for exposed circular pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108302283B (en) |
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| Publication number | Publication date |
|---|---|
| CN108302283A (en) | 2018-07-20 |
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