CN202671996U - Snow melting device for melting snow on road surface or bridge floor with natural thermal spring water on mountain - Google Patents
Snow melting device for melting snow on road surface or bridge floor with natural thermal spring water on mountain Download PDFInfo
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- CN202671996U CN202671996U CN 201220369273 CN201220369273U CN202671996U CN 202671996 U CN202671996 U CN 202671996U CN 201220369273 CN201220369273 CN 201220369273 CN 201220369273 U CN201220369273 U CN 201220369273U CN 202671996 U CN202671996 U CN 202671996U
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- bridge floor
- road surface
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- snow
- thermal water
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Abstract
The utility model discloses a snow melting device for melting snow on a road surface or a bridge floor with natural thermal spring water on a mountain. The snow melting device comprises a water storage device which is arranged on the mountain and used for containing the natural spring water. A water guide pipeline is arranged on one side of the water storage device, and a water transport pipeline is arranged on the other side of the water storage device. The water transport pipeline is located on one side of the road surface or the bridge floor and extends along the length direction of the road surface or the bridge floor. A water exhaust pipeline extending along the length direction of the road surface or the bridge floor and a water collecting pool connected with the water exhaust pipeline are arranged on the other side of the road surface or the bridge floor. A plurality of heat dissipation pipes are embedded in face layers of the road surface or the bridge floor. One ends of the heat dissipation pipes are connected with the water transport pipeline, and the other ends of the heat dissipation pipelines are connected with the water exhaust pipeline. A first control valve is arranged on a position of the water transport pipeline close to the water storage device. A second control valve is arranged on one end of the water transport pipeline far away from the water storage device. The snow melting device is good in snow melting effect, improves traffic capacity of roads with snow, and reduces traffic accidents.
Description
Technical field
The utility model relates to a kind of device for melting snow, particularly relates to a kind of device for melting snow that adopts natural thermal water on the mountain to melt road surface or bridge floor accumulated snow.
Background technology
Road surface, tunnel face and the bridge floor of a lot of mountain highways of China in winter all have accumulated snow, the impact driving traffic capacity and moving traffic safety.The most frequently used method of present actual solving road accumulated snow problem has spreading Snow Agent, artificial mechanism to remove, spread hot water etc.Yet these methods all need to drop into a large amount of manpower and materials, and manual work labour intensity is large, and operation effectiveness is low; Snow removal with machine method fault is many, easily cause road surface and bridge floor equivalent damage, bring potential destruction to means of transportation, the plant equipment initial investment is larger simultaneously, running and utilization ratio are lower, and especially the special road section at highway has limitation such as uses such as tunnel face, bridge, mountain area, Large Longitudinal Slope.And spreading Snow Agent road pavement material, bridge construction, surrounding environment and building, underground utilities etc. damage and corrode.Spread the hot water power consumption large, temperature is crossed the low secondary that easily causes and is frozen.Therefore, suit measures to local conditions, select and utilize especially key of rational snow melt mode.
The utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of device for melting snow that adopts natural thermal water on the mountain to melt road surface or bridge floor accumulated snow is provided.The snow melt of this device for melting snow is respond well, operates very easy, thereby can improve the traffic capacity of snow road, reduce the generation of traffic accident, and it is simple in structure, easy to use, cost of production is low, is convenient to promote the use of.
For achieving the above object, the technical solution adopted in the utility model is: natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing mountain, it is characterized in that: comprise the accumulator that is arranged on the mountain and is used for splendid attire nature thermal water, one side of described accumulator is connected with for the conduit pipe that natural thermal water on the mountain is delivered to accumulator, the opposite side of described accumulator is connected with for the aqueduct that the natural thermal water in the accumulator is delivered to road surface or bridge floor, described aqueduct be positioned at a side of road surface or bridge floor and along the road surface or the length direction of bridge floor extend, the opposite side of described road surface or bridge floor is provided with along the road surface or the length direction of bridge floor extends drainage pipe and the collecting-tank that is connected with drainage pipe, the surface layer of described road surface or bridge floor is embedded with a plurality of radiating tubes, one end of described radiating tube is connected with aqueduct, the other end of described radiating tube is connected with drainage pipe, be provided with by-pass valve control one on the described aqueduct and near the position of accumulator, be provided with by-pass valve control two on the described aqueduct and away from an end of accumulator.
Natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the above-mentioned employing mountain, it is characterized in that: described accumulator is arranged on the top in tunnel and the highway bridge one of close tunnel portal section, described collecting-tank is arranged on the below of the bridge floor one of highway bridge one, described aqueduct is positioned at a side of bridge floor one and extends along the length direction of bridge floor one, described drainage pipe is arranged on the opposite side of bridge floor one and extends along the length direction of bridge floor one, and described radiating tube is embedded in the surface layer of bridge floor one.
Natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the above-mentioned employing mountain, it is characterized in that: described accumulator is arranged on the top of the highway bridge two that passes the mountain valley and is positioned at a side of massif two, described collecting-tank be arranged on described highway bridge two bridge floor two the below and near the opposite side of massif two, described aqueduct is positioned at a side of bridge floor two and extends along the length direction of bridge floor two, described drainage pipe is arranged on the opposite side of bridge floor two and extends along the length direction of bridge floor two, and described radiating tube is embedded in the surface layer of bridge floor two.
Natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the above-mentioned employing mountain, it is characterized in that: described accumulator is arranged on the top of the highway that passes the mountain valley and is positioned at a side of massif three, described collecting-tank be arranged on described highway the road surface the below and near the opposite side of massif three, described aqueduct is positioned at a side on road surface and extends along the length direction on road surface, described drainage pipe is arranged on the opposite side on road surface and extends along the length direction on road surface, and described radiating tube is embedded in the surface layer on road surface.
Natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the above-mentioned employing mountain, it is characterized in that: described radiating tube is " U " type thermal-collecting tube.
Natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the above-mentioned employing mountain, it is characterized in that: the outer wall of described reservoir is provided with insulation layer one.
Natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the above-mentioned employing mountain, it is characterized in that: the outer wall of described aqueduct is provided with insulation layer two.
Natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the above-mentioned employing mountain, it is characterized in that: described radiating tube adopts stainless steel seamless pipe to make.
Natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the above-mentioned employing mountain, it is characterized in that: the external diameter of described radiating tube is 12mm～20mm, and the thickness of described radiating tube tube wall is 1mm～2mm.
Natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the above-mentioned employing mountain, it is characterized in that: described by-pass valve control one and by-pass valve control two are block valve.
The utility model compared with prior art has the following advantages:
1, of the present utility model simple in structure, rationally novel in design, be easy to install.
2, the geothermal energy resources thermal water that the utility model takes full advantage of recyclable regenerative melts mountain highway road surface or the ice and snow of bridge floor in winter, because the thermal water in general mountain area or tunnel has long-term trickling and keeps warm characteristic winter, all can keep more than 15 ℃ in the winter time generally speaking, can be used for melting road surface or bridge floor accumulated snow, road surface or bridge floor totally clean after the snow melt, be conducive to vehicle operating, reduce traffic accident, and operational outfit and simple in structure, pollution-free, long service life, with low cost, after collecting, thermal water after the use can be used to irrigate and as living water use.
3, the utility model increases area of dissipation like this by radiating tube being set and described radiating tube is " U " type thermal-collecting tube, and is good to the ablation effect of accumulated snow.
4, the utility model is provided with insulation layer one by the outer wall at reservoir, effectively prevents distributing of the interior thermal water heat of reservoir.Also by the outer setting at described aqueduct insulation layer two is arranged, effectively prevent distributing of the interior thermal water heat of aqueduct.
5, realization cost of the present utility model is low, and result of use is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, rationally novel in design, functional reliability is high, long service life, the snow melt of this device for melting snow is respond well, operate very easy, thereby can improve the traffic capacity of snow road, reduce the generation of traffic accident, and it is easy to use, cost of production is low, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Description of drawings
Fig. 1 is the structural representation of the utility model the first embodiment.
Fig. 2 is the structural representation of the utility model the second embodiment.
Fig. 3 is the structural representation of the third embodiment of the utility model.
Fig. 4 is the annexation schematic diagram of the utility model radiating tube and aqueduct and drainage pipe.
Fig. 5 is the structural representation of the utility model accumulator cross section.
Fig. 6 is the structural representation of the utility model aqueduct cross section.
Description of reference numerals:
1-conduit pipe; 2-accumulator; 2-1-insulation layer one;
3-by-pass valve control one; 4-aqueduct; 4-1-insulation layer two;
5-by-pass valve control two; 6-collecting-tank; 7-drainage pipe;
8-radiating tube; 9-massif one; 10-highway bridge one;
10-1-bridge floor one; 11-tunnel; 12-massif two;
13-highway bridge two; 13-1-bridge floor two; 14-massif three;
15-highway; 15-1-road surface.
The specific embodiment
Embodiment 1
As shown in Figure 1 and Figure 4 a kind of adopts natural thermal water on the mountain to melt the device for melting snow of road surface or bridge floor accumulated snow, comprise the accumulator 2 that is arranged on the mountain and is used for splendid attire nature thermal water, one side of described accumulator 2 is connected with for the conduit pipe 1 that natural thermal water on the mountain is delivered to accumulator 2, the opposite side of described accumulator 2 is connected with for the aqueduct 4 that the natural thermal water in the accumulator 2 is delivered to road surface or bridge floor, described aqueduct 4 be positioned at a side of road surface or bridge floor and along the road surface or the length direction of bridge floor extend, the opposite side of described road surface or bridge floor is provided with along the road surface or the length direction of bridge floor extends drainage pipe 7 and the collecting-tank 6 that is connected with drainage pipe 7, the surface layer of described road surface or bridge floor is embedded with a plurality of radiating tubes 8, one end of described radiating tube 8 is connected with aqueduct 4, the other end of described radiating tube 8 is connected with drainage pipe 7, be provided with by-pass valve control 1 on the described aqueduct 4 and near the position of accumulator 2, be provided with by-pass valve control 25 on the described aqueduct 4 and away from an end of accumulator 2.Described by-pass valve control 1 and by-pass valve control 25 are block valve.Wherein, the buried depth of described radiating tube 8 is looked concrete condition and by calculative determination, and being generally does not affect road structure and can reach under the prerequisite of snow melt effect, embedding shallow be good, distance of embedded pipe should not be wide to reach the setting of best snow melt effect.Aqueduct 4 and drainage pipe 7 all adopt cast-iron pipe or zinc-plated pipeline.
In the present embodiment, described accumulator 2 is arranged on the massif 1, and is positioned at the top in tunnel 11 and the highway bridge 1 of close tunnel portal section, and described collecting-tank 6 is arranged on the below of bridge floor one 10-1 of highway bridge 1.Described aqueduct 4 is positioned at the side of bridge floor one 10-1 and extends along the length direction of bridge floor one 10-1, described drainage pipe 7 is arranged on the opposite side of described bridge floor one 10-1 and extends along the length direction of bridge floor one 10-1, and described radiating tube 8 is embedded in the surface layer of bridge floor one 10-1.Described radiating tube 8 adopts 304 gapless stainless steel tubes to make.The external diameter of described radiating tube 8 is 12mm～20mm, and the thickness of described radiating tube 8 tube walls is 1mm～2mm.
During use, at first by conduit pipe 1 natural thermal water is introduced reservoir 2, reservoir 2 is enough large and heat insulation effect is good, opening controlling valve door 1, thermal water in the reservoir 2 relies on the longitudinal gradient of self gravitation potential energy and bridge floor one 10-1 by aqueduct 4 and through the radiating tube 8 that is embedded in bridge floor one 10-1 heat to be passed to bridge floor one 10-1 by radiating tube 8, bridge floor one 10-1 is heated up, melt the accumulated snow on bridge floor one 10-1.Thermal water by the cooling of radiating tube 8 in bridge floor one 10-1 flows into drainage pipe 7, then compiles to enter collecting-tank 6, and the thermal water of collecting-tank 6 interior coolings can be used for local resident's the auxiliary water of life.When stopping using, can closing control valve 1, opening controlling valve door 25 makes that to remain in aqueduct 4 interior unnecessary thermal waters emptying, prevents from freezing.The present embodiment is applied to be in the highway bridge 1 of tunnel portal section, and is good to the ablation effect of accumulated snow on bridge floor one 10-1 of highway bridge 1.
The utility model is melting road surface accumulated snow in the winter time not only, can also be in the situation that summer temperature be higher, because thermal water is cool in summer and warm in winter, can also be by same operation, help to reduce because road surface or bridge surface mangle and the excessive thermal stresses of generation that high temperature causes to road surface or bridge floor cooling.
As shown in Figure 4, described radiating tube 8 is " U " type thermal-collecting tube, increases like this area of dissipation, and is good to the ablation effect of accumulated snow.
As shown in Figure 5, the outer wall of described reservoir 2 is provided with insulation layer one 2-1, effectively prevents distributing of reservoir 2 interior thermal water heats.The heat insulating material of described insulation layer one 2-1 can adopt XPS plate or polyurethane foam.
As shown in Figure 6, the outer wall of described aqueduct 4 is provided with insulation layer two 4-1, effectively prevents distributing of aqueduct 4 interior thermal water heats.Described insulation layer two 4-1 adopt polyurethane foam heat insulation material to make.
Such as Fig. 2 and shown in Figure 4, the difference of the present embodiment and embodiment 1 is: described accumulator 2 is arranged on the top of the highway bridge 2 13 that passes the mountain valley and is positioned at a side of massif 2 12, described collecting-tank 6 be arranged on described highway bridge 2 13 bridge floor two 13-1 the below and near the opposite side of massif 2 12, described aqueduct 4 is positioned at the side of bridge floor two 13-1 and extends along the length direction of bridge floor two 13-1, described drainage pipe 7 is arranged on the opposite side of described bridge floor two 13-1 and extends along the length direction of bridge floor two 13-1, and described radiating tube 8 is embedded in the surface layer of bridge floor two 13-1.
During use, at first by conduit pipe 1 natural thermal water is introduced reservoir 2, reservoir 2 is enough large and heat insulation effect is good, opening controlling valve door 1, thermal water in the reservoir 2 relies on the longitudinal gradient of self gravitation potential energy and bridge floor two 13-1 by aqueduct 4 and through the radiating tube 8 that is embedded in bridge floor two 13-1 heat to be passed to bridge floor two 13-1 by radiating tube 8, bridge floor two 13-1 are heated up, melt the accumulated snow on bridge floor two 13-1.Flow into drainage pipe 7 by radiating tube 8 in bridge floor two 13-1 and the thermal water that cooled off, then compile and enter collecting-tank 6, the thermal water of collecting-tank 6 interior coolings can be used for local resident's the auxiliary water of life.When stopping using, can closing control valve 1, opening controlling valve door 25 makes that to remain in aqueduct 4 interior unnecessary thermal waters emptying, prevents from freezing.The present embodiment is applied to pass the highway bridge 2 13 in mountain valley, and is good to the ablation effect of accumulated snow on bridge floor two 13-1 of highway bridge 2 13.
As shown in Figure 3 and Figure 4, the difference of the present embodiment and embodiment 1 is: described accumulator 2 is arranged on the top of the highway 15 that passes the mountain valley and is positioned at a side of massif 3 14, described collecting-tank 6 be arranged on described highway 15 road surface 15-1 the below and near the opposite side of massif 3 14, described aqueduct 4 is positioned at the side of road surface 15-1 and extends along the length direction of road surface 15-1, described drainage pipe 7 is arranged on the opposite side of described road surface 15-1 and extends along the length direction of road surface 15-1, and described radiating tube 8 is embedded in the surface layer of road surface 15-1.
During use, at first by conduit pipe 1 natural thermal water is introduced reservoir 2, reservoir 2 is enough large and heat insulation effect is good, opening controlling valve door 1, thermal water in the reservoir 2 relies on the longitudinal gradient of self gravitation potential energy and road surface 15-1 by aqueduct 4 and through the radiating tube 8 that is embedded in the 15-1 of road surface heat to be passed to road surface 15-1 by radiating tube 8, make road surface 15-1 heat up the accumulated snow on the melting road surface 15-1.Flow into drainage pipe 7 by radiating tube 8 in the 15-1 of road surface and the thermal water that cooled off, then compile and enter collecting-tank 6, the thermal water of collecting-tank 6 interior coolings can be used for local resident's the auxiliary water of life.When stopping using, can closing control valve 1, opening controlling valve door 25 makes that to remain in aqueduct 4 interior unnecessary thermal waters emptying, prevents from freezing.The present embodiment is applied to pass the highway 15 in mountain valley, and is good to the ablation effect of accumulated snow on the road surface 15-1 of highway 15.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is imposed any restrictions; every according to the utility model technical spirit to any simple modification, change and equivalent structure transformation that above embodiment does, all still belong in the protection domain of technical solutions of the utility model.
Claims (10)
1. natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing mountain, it is characterized in that: comprise the accumulator (2) that is arranged on the mountain and is used for splendid attire nature thermal water, one side of described accumulator (2) is connected with for the conduit pipe (1) that natural thermal water on the mountain is delivered to accumulator (2), the opposite side of described accumulator (2) is connected with for the aqueduct (4) that the natural thermal water in the accumulator (2) is delivered to road surface or bridge floor, described aqueduct (4) be positioned at a side of road surface or bridge floor and along the road surface or the length direction of bridge floor extend, the opposite side of described road surface or bridge floor is provided with along the road surface or the length direction of bridge floor extends drainage pipe (7) and the collecting-tank (6) that is connected with drainage pipe (7), the surface layer of described road surface or bridge floor is embedded with a plurality of radiating tubes (8), one end of described radiating tube (8) is connected with aqueduct (4), the other end of described radiating tube (8) is connected with drainage pipe (7), described aqueduct (4) is upper and be provided with by-pass valve control one (3) near the position of accumulator (2), and described aqueduct (4) is upper and be provided with by-pass valve control two (5) away from an end of accumulator (2).
2. natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing according to claim 1 mountain, it is characterized in that: described accumulator (2) is arranged on the top in tunnel (11) and the highway bridge one (10) of close tunnel portal section, described collecting-tank (6) is arranged on the below of the bridge floor one (10-1) of highway bridge one (10), described aqueduct (4) is positioned at a side of bridge floor one (10-1) and extends along the length direction of bridge floor one (10-1), described drainage pipe (7) is arranged on the opposite side of bridge floor one (10-1) and extends along the length direction of bridge floor one (10-1), and described radiating tube (8) is embedded in the surface layer of bridge floor one (10-1).
3. natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing according to claim 1 mountain, it is characterized in that: described accumulator (2) is arranged on the top of the highway bridge two (13) that passes the mountain valley and is positioned at a side of massif two (12), described collecting-tank (6) be arranged on described highway bridge two (13) bridge floor two (13-1) the below and near the opposite side of massif two (12), described aqueduct (4) is positioned at a side of bridge floor two (13-1) and extends along the length direction of bridge floor two (13-1), described drainage pipe (7) is arranged on the opposite side of bridge floor two (13-1) and extends along the length direction of bridge floor two (13-1), and described radiating tube (8) is embedded in the surface layer of bridge floor two (13-1).
4. natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing according to claim 1 mountain, it is characterized in that: described accumulator (2) is arranged on the top of the highway (15) that passes the mountain valley and is positioned at a side of massif three (14), described collecting-tank (6) be arranged on described highway (15) road surface (15-1) the below and near the opposite side of massif three (14), described aqueduct (4) is positioned at a side on road surface (15-1) and the length direction of (15-1) extends along the road surface, described drainage pipe (7) is arranged on the opposite side on road surface (15-1) and the length direction of (15-1) extends along the road surface, and described radiating tube (8) is embedded in the surface layer of road surface (15-1).
5. natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing according to claim 1 mountain, and it is characterized in that: described radiating tube (8) is " U " type thermal-collecting tube.
6. natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing according to claim 1 mountain, and it is characterized in that: the outer wall of described reservoir (2) is provided with insulation layer one (2-1).
7. natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing according to claim 1 mountain, and it is characterized in that: the outer wall of described aqueduct (4) is provided with insulation layer two (4-1).
8. natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing according to claim 1 mountain, and it is characterized in that: described radiating tube (8) adopts stainless steel seamless pipe to make.
9. natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing according to claim 8 mountain, and it is characterized in that: the external diameter of described radiating tube (8) is 12mm～20mm, and the thickness of described radiating tube (8) tube wall is 1mm～2mm.
10. natural thermal water melts the device for melting snow of road surface or bridge floor accumulated snow on the employing according to claim 1 mountain, and it is characterized in that: described by-pass valve control one (3) and by-pass valve control two (5) are block valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369273 CN202671996U (en) | 2012-07-28 | 2012-07-28 | Snow melting device for melting snow on road surface or bridge floor with natural thermal spring water on mountain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369273 CN202671996U (en) | 2012-07-28 | 2012-07-28 | Snow melting device for melting snow on road surface or bridge floor with natural thermal spring water on mountain |
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| Publication Number | Publication Date |
|---|---|
| CN202671996U true CN202671996U (en) | 2013-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220369273 Expired - Fee Related CN202671996U (en) | 2012-07-28 | 2012-07-28 | Snow melting device for melting snow on road surface or bridge floor with natural thermal spring water on mountain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202671996U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133483A (en) * | 2015-08-28 | 2015-12-09 | 芜湖科创生产力促进中心有限责任公司 | Cooling overbridge |
| CN108842567A (en) * | 2018-06-27 | 2018-11-20 | 兰州理工大学 | With the energy complementation antiskid structure on automatic snow-melting road surface and construction and operation method |
| CN110055854A (en) * | 2018-01-19 | 2019-07-26 | 山东省交通规划设计院 | A kind of the water pumping formula inorganic medium heat pipe snow-melting system and method for arranging of cross a river bridge floor |
-
2012
- 2012-07-28 CN CN 201220369273 patent/CN202671996U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105133483A (en) * | 2015-08-28 | 2015-12-09 | 芜湖科创生产力促进中心有限责任公司 | Cooling overbridge |
| CN105133483B (en) * | 2015-08-28 | 2018-05-29 | 芜湖科创生产力促进中心有限责任公司 | A kind of cooling overline bridge |
| CN110055854A (en) * | 2018-01-19 | 2019-07-26 | 山东省交通规划设计院 | A kind of the water pumping formula inorganic medium heat pipe snow-melting system and method for arranging of cross a river bridge floor |
| CN108842567A (en) * | 2018-06-27 | 2018-11-20 | 兰州理工大学 | With the energy complementation antiskid structure on automatic snow-melting road surface and construction and operation method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20150728 |
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| EXPY | Termination of patent right or utility model |