CN211228112U - Bridge deck with snow melting and deicing functions and containing phase change materials - Google Patents
Bridge deck with snow melting and deicing functions and containing phase change materials Download PDFInfo
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- CN211228112U CN211228112U CN201920631186.9U CN201920631186U CN211228112U CN 211228112 U CN211228112 U CN 211228112U CN 201920631186 U CN201920631186 U CN 201920631186U CN 211228112 U CN211228112 U CN 211228112U
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Abstract
The utility model relates to a decking that contains phase change material with snow melt deicing function, panel under combined material top panel and combined material, the combined material top panel with be equipped with the metal grid under the combined material between the panel, be equipped with foam metal material in the metal grid, organic phase change material is equipped with in foam metal material's the inside obturator. The utility model discloses take and print the in-process at foam metal 3D and add organic phase change material's method in its obturator for organic phase change material is in the same place with the effectual combination of foam metal, and full play has the characteristics that organic phase change material latent heat is big, and has improved phase change material's coefficient of heat conductivity, is applied to the decking, can be at the effective snow removing of low temperature during operation.
Description
Technical Field
The utility model relates to a decking structure especially relates to a bridge deck structure who contains phase change material with snow melt deicing function.
Background
In winter, snow on the road surface and the bridge in rainy and snowy weather can freeze to cause great adverse effect to traffic driving, driving safety cannot be guaranteed, traffic accidents are easy to happen, and great economic loss is brought.
At present, there are many methods for removing ice and snow on road surfaces at home and abroad, but the method can also bring different degrees of harm to the road surface structure and environment, such as (1) mechanical and artificial deicing. The ice and snow fall off from the road surface structure under the action of machinery and manpower, so as to achieve the aim of deicing. But the ice-removing device can temporarily block the traffic, influence the normal operation of roads and bridges, and can also have the phenomenon of icing after ice removal. (2) The salt snow-melting agent removes ice. The method can quickly remove ice, but the salts of the ice and the snow have certain corrosion action, can damage road surface structures and motor vehicles, and can pollute soil, water, atmosphere and the like and destroy ecological environment when being used in large quantities. (3) Deicing by a hot melting method. The method mainly comprises cable heating, conductive concrete or asphalt, circulating hot fluid and the like. However, these methods increase the construction cost of roads and bridges, and the deicing effect is not very desirable.
Since the research hotspot of phase-change material energy storage technology formed in the 70 s, the research on the basic theory and application technology of phase-change material heat storage has rapidly grown up and is continuously developed in developed countries. A phase change material is a substance that changes state of a substance with a change in temperature and provides latent heat. The phase change energy storage technology utilizes the special properties of the phase change material, and the characteristics of heat storage and heat release when the phase change material is subjected to phase change due to temperature change, can effectively reduce the heat load and the cold load of a building structure when being applied to a building, and is an important technology for improving the energy utilization efficiency and protecting the environment. In the phase change material, compared with an inorganic phase change material, the organic phase change material is not easy to generate supercooling or phase separation, has stable thermochemical property, does not release toxic gas during phase change, but has the defects of low heat conductivity coefficient, easy combustion at high temperature and the like.
Foam metal (such as foam aluminum, foam copper, foam nickel, foam alloy and the like) is a novel structural functional material consisting of a metal matrix and air holes, and compared with a solid metal material, the foam metal material has the advantages that mechanical properties such as strength and the like are sacrificed, superior properties such as heat, sound, energy absorption, light weight and the like are obtained, and the foam metal material becomes a novel structural functional material. The foam metal has high heat conductivity coefficient because the inside of the foam metal is provided with air holes which occupy more than 60 percent of the volume.
Therefore, according to the characteristics of the organic phase change material and the foam metal, if the advantages of the organic phase change material and the foam metal can be effectively combined together and applied to a bridge deck structure to remove ice and snow on the bridge deck pavement, it is an important research subject for those skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a bridge deck board that contains phase change material with snow melt deicing function to the not enough of current road surface, bridge tradition snow removing mode.
In order to realize the purpose of the utility model, the utility model adopts the technical proposal that: a bridge deck with snow melting and deicing functions and containing phase change materials comprises a composite material upper deck and a composite material lower deck, wherein a metal grid is arranged between the composite material upper deck and the composite material lower deck, a foam metal material is arranged in the metal grid, and an organic phase change material is arranged in a closed hole in the foam metal material.
Preferably, 60% -90% of the internal volume of the internal closed pores is filled with the organic phase change material, and the balance is air.
Preferably, the foam metal material is molded by a 3D printing technology, and the organic phase change material is added into the closed pores inside the foam metal material during the printing process of the foam metal material.
Preferably, the composite material upper panel, the composite material lower panel, the metal grid and the foam metal material are bonded together through bonding layers.
Preferably, the composite material upper panel, the composite material lower panel and the foam metal material are fixed by expansion bolts.
Preferably, the organic phase change material is one or more of pentaerythritol, neopentyl glycol, trimethylolethane, 2-amino-2-methyl-1, 3-propanediol and tris (hydroxymethyl) aminomethane.
Preferably, the foam metal material is one or more of foam aluminum, foam copper, foam nickel and foam alloy.
Preferably, the metal grids are arranged in a bidirectional mode, and adjacent grids are spaced at equal intervals in the transverse direction and the longitudinal direction.
Preferably, the metal grid is one or more of an aluminum grid, a steel grid and a hot-dip galvanized steel grid.
Preferably, the composite material upper panel and the composite material lower panel are formed by curing a fiber reinforced composite material and a resin through a vacuum infusion process, wherein the fiber reinforced composite material is at least one of uniaxial or biaxial or multiaxial carbon fiber, glass fiber, aramid fiber or hybrid fiber; the resin is at least one of unsaturated polyester, vinyl resin, inorganic resin, epoxy resin, o-benzene resin and thermoplastic resin material.
The utility model has the advantages that: 1. The foam metal material is used as the matrix material and the supporting material of the organic phase-change material, on one hand, the energy absorption and shock absorption performance of the foam metal can play a certain protection role on a road and a bridge to a certain extent, on the other hand, the organic phase-change material is packaged in the closed pores in the foam metal material, the heat conductivity coefficient of the organic phase-change material is effectively improved, and the problem of leakage of the phase-change material is solved while snow melting is realized. 2. The foam metal material that will satisfy technical requirement prints through 3D printing technique, can pass through computer control foam metal's micropore size and specific shape on the one hand for can be better satisfy people's demand, on the other hand just adds organic phase change material in the obturator at the printing in-process, the effectual phase change material content that has increased in the matrix material, and can guarantee matrix material and organic phase change material misce bene, heat transfer effect is better. 3. The bridge deck is supported by the upper and lower deck layers made of composite materials and the metal grating inside, and can protect the pavement to a certain extent. 4. The utility model discloses a decking itself has snow melt deicing function, because the characteristic of organic phase change material itself, its nature is stable, can maintain long-term relative equilibrium state. Because the novel road surface snow melting agent has the characteristic of large phase change latent heat, the occurrence of a freezing and thawing phenomenon can be effectively slowed down in the snow melting process, and a certain protection effect is provided for the road surface and the bridge deck structure to a certain extent.
Drawings
FIG. 1 is a schematic view of the bridge deck structure of the present invention.
Fig. 2 is a schematic view of a metal grid.
FIG. 3 is a schematic diagram of a metal foam structure containing an organic phase change material.
Fig. 4 is a schematic view of the internal closed cell structure of the metal foam.
In the figure: 1. the composite material comprises a foam metal, 2, an organic phase change material, 3, a metal grid, 4, an adhesive layer, 5, a composite material upper panel, 6, a composite material lower panel, 7, an expansion bolt and 8, wherein the inner part of the composite material lower panel is closed; 9. air.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
As shown in fig. 1, 2 and 3, the bridge deck structure with snow melting and deicing functions and containing phase change materials of the present embodiment includes a composite material upper deck 5 and a composite material lower deck 6, a metal grid 3 is installed between the composite material upper deck 5 and the composite material lower deck 6, a foamed metal material 1 is installed in the metal grid 3, and an organic phase change material 2 is installed in an internal closed cell 8 of the foamed metal material 1. Wherein the metal grid 3 divides the bridge deck middle layer into rectangular areas distributed along the transverse direction and the longitudinal direction, the length of each rectangular area along the transverse direction and the longitudinal direction is equal, and the foam metal 1 is placed in the rectangular areas. The metal grid 3, the composite upper panel 5 and the composite lower panel 6 are bonded to the foamed metal material 1 by the adhesive layer 4, and further, the foamed metal 1, the composite upper panel 5 and the composite lower panel 6 are fastened together by the expansion bolts 7.
In order to fully utilize the excellent characteristics of the organic phase change material and the foam metal, the foam metal material 1 is prepared by adopting a 3D printing technology, the 3D printing equipment can ensure the technical requirements of the foam metal through controlling the size and the shape of micropores of the foam metal, the phase change material is combined with the foam metal in the 3D printing process, so that the organic phase change material 2 can enter closed pores of the foam metal 1, the foam metal 1 and the organic phase change material 2 after being printed and molded are fully combined together, and the heat conductivity coefficient of the phase change material is improved while the leakage problem of the organic phase change material is effectively avoided.
As shown in FIG. 4, the organic phase change material 2 is sealed in the closed pores 8 of the foam metal material, wherein 60% -90% of the closed pore volume of the foam metal is filled with the organic phase change material, and the rest is air 9.
Preferably, in the embodiment, the organic phase-change material is prepared by modifying organic polyols (such as polyethylene glycol) by adding additives and the like, and the modified phase-change material has a phase-change temperature of 0-5 ℃. The organic phase change material comprises one or more of Pentaerythritol (PE), neopentyl glycol (NPG), trimethylolethane (PG), 2-amino-2-methyl-1, 3-propanediol (AMP) and tris (hydroxymethyl) aminomethane (TAM). The foam metal material specifically comprises one or more of foam aluminum, foam copper, foam nickel and foam alloy. The metal grid material is mainly at least one of an aluminum grid, a steel grid and a hot-dip galvanized steel grid. The composite material panel is formed by solidifying fiber reinforced composite materials and resin by adopting a vacuum infusion process. Wherein the fiber reinforced composite material mainly adopts at least one of single, biaxial or multiaxial carbon fiber, glass fiber, aramid fiber or hybrid fiber; the resin is mainly at least one of unsaturated polyester, vinyl resin, inorganic resin, epoxy resin, o-benzene resin or thermoplastic resin material.
The above is only the preferred embodiment of the present invention, and for this technical field, under the premise of not departing from the core principle of the present invention, a concrete feasible optimization scheme can also be made, and this kind of improvement and optimization scheme should also be regarded as the protection scope of the present invention.
Claims (6)
1. The bridge deck with snow melting and deicing functions and containing the phase-change materials comprises a composite material upper deck (5) and a composite material lower deck (6), and is characterized in that a metal grid (3) is arranged between the composite material upper deck (5) and the composite material lower deck (6), a foam metal material (1) is arranged in the metal grid (3), and an organic phase-change material (2) is arranged in an inner closed hole (8) of the foam metal material (1).
2. Bridge deck with snow and ice melting function containing phase change material according to claim 1, characterized in that 60% to 90% of the internal volume of said internal closed cells (8) is filled with organic phase change material (2), the rest being air (9).
3. Bridge deck with snow and ice melting function containing phase change material according to claim 1 or 2, characterized in that said foamed metal material (1) is formed by 3D printing technology, and said organic phase change material (2) is added into the internal closed cells (8) of said foamed metal material (1) during the printing process of said foamed metal material (1).
4. Bridge deck with snow and ice melting function containing phase change material according to claim 1 or 2, characterized in that said composite upper panel (5), said composite lower panel (6), said metal grid (3) and said foam metal material (1) are bonded together by means of a bonding layer (4).
5. Bridge deck with snow and ice melting function containing phase change material according to claim 4, characterized in that said composite upper deck (5), said composite lower deck (6) and said foam metal material (1) are fixed by expansion bolts (7).
6. Bridge deck with snow and ice melting function containing phase change material according to claim 1 or 2, characterized in that said metal grids (3) are arranged in a bidirectional way and adjacent grids are spaced apart equally from each other in the transverse direction and in the longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920631186.9U CN211228112U (en) | 2019-05-06 | 2019-05-06 | Bridge deck with snow melting and deicing functions and containing phase change materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920631186.9U CN211228112U (en) | 2019-05-06 | 2019-05-06 | Bridge deck with snow melting and deicing functions and containing phase change materials |
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| Publication Number | Publication Date |
|---|---|
| CN211228112U true CN211228112U (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920631186.9U Expired - Fee Related CN211228112U (en) | 2019-05-06 | 2019-05-06 | Bridge deck with snow melting and deicing functions and containing phase change materials |
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| CN (1) | CN211228112U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273361A (en) * | 2019-05-06 | 2019-09-24 | 江苏大学 | A kind of floorings containing phase-change material with snow melt deicing function |
-
2019
- 2019-05-06 CN CN201920631186.9U patent/CN211228112U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110273361A (en) * | 2019-05-06 | 2019-09-24 | 江苏大学 | A kind of floorings containing phase-change material with snow melt deicing function |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200811 Termination date: 20210506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |