CN204589760U - A kind of active anti-ice snow-melting system based on thermal pipe heating road surface - Google Patents
A kind of active anti-ice snow-melting system based on thermal pipe heating road surface Download PDFInfo
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- CN204589760U CN204589760U CN201520269324.5U CN201520269324U CN204589760U CN 204589760 U CN204589760 U CN 204589760U CN 201520269324 U CN201520269324 U CN 201520269324U CN 204589760 U CN204589760 U CN 204589760U
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Abstract
The utility model discloses a kind of active anti-ice snow-melting system based on thermal pipe heating road surface.It comprises and is layed in heat exchange unit layer between bridge floor pitch lower floor and bridge concrete layer interface and isolation layer; The hot circulating medium water supply arm of each heat exchange unit, return branch are communicated on hot circulating medium water supply main pipe, backwater main pipe respectively, water supply main pipe, backwater main pipe are connected with boiler, water supply main pipe is provided with variable frequency pump, and water supply main pipe, backwater main pipe are respectively equipped with thermometer, pressure meter and valve; The water supply arm of each heat exchange unit, return branch are respectively equipped with valve; Hot circulating medium adopts concentration to be the ethylene glycol solution of 20%; Boiler, variable frequency pump and each thermometer, pressure meter, valve are connected with control system.The utility model can prevent winter heat distribution pipeline to freeze blocking and that bursting by freezing occurs is dangerous, solution can be prevented the corrosion of pipeline and meet the stress requirement of weld.
Description
Technical field
The utility model belongs to speedway special section freezing preventing and ice melting snow technical field, is specifically related to a kind of active anti-ice snow-melting system based on thermal pipe heating road surface of bridge on highway.
Background technology
Along with the development of China's national economy, speedway and bridge construction undergo an unusual development rapidly, freeway net and the effect of bridge in national economy and social life more and more important.But special road section ice and snow in the winter situations such as bridge on highway affect expressway traffic safety, cause a key factor of traffic accidents.At present in the world in ice and snow remover, mechanical deicing's snow technology etc., define a set of comparatively ripe way, but the active antifreeze clearing ice technology of road pavement, be still in research and experimental stage.In road surface initiatively antifreeze clearing ice technology, heating cable heating power deicing technology most technical feasibility and obtain engineer applied in Northern Europe and the ground such as Xinjiang of China, Heilungkiang.Tongji University develops superconduct antiskid wearing layer system, and one section of Experiment Road of the long 8m that mated formation on Zhejiang provincial highway bridge, wide 2m carried out dependence test experiment, experiment show this system for special road section freeze early warning and just season in the last days of winter deicing or snow melting, ensure traffic safety and there is good effect.Heating power oil (water) pipe has minority for the case of rigidity cement pavement, but is applied to flexible flexible pavement and there is no example, mainly there is following technical problem urgently to be resolved hurrily: heat distribution pipe network is at the stress level of asphalt pavement structure; Can pipe material and weld meet force request; Liquid in pipe reveals the damaged condition etc. that road pavement structure causes.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of antifreeze clearing ice technology of active based on thermal pipe heating bridge floor, namely based on the active anti-ice snow-melting system on thermal pipe heating road surface.
The purpose of this utility model realizes by the following technical solutions: should based on the active anti-ice snow-melting system on thermal pipe heating road surface, and it comprises and is layed in heat exchange unit layer between bridge floor pitch lower floor and bridge concrete layer interface and isolation layer from top to bottom successively; Heat exchange unit layer is made up of each heat exchange unit, the hot circulating medium water supply arm of each heat exchange unit, return branch are communicated on hot circulating medium water supply main pipe, backwater main pipe respectively, described water supply main pipe, backwater main pipe are connected with boiler, water supply main pipe is provided with variable frequency pump, and water supply main pipe, backwater main pipe are respectively equipped with thermometer, pressure meter and valve; The water supply arm of described each heat exchange unit, return branch are respectively equipped with valve; Described hot circulating medium adopts concentration to be the ethylene glycol solution of 20%; Described boiler, variable frequency pump and each thermometer, pressure meter, valve are connected with control system.
Concrete, described heat exchange unit is have necessarily laying width and length, end to end thermal pipe pipe to arrange, and thermal pipe is the 316l stainless steel tube of DN20 and adopts sleeve weld, and pipe trestle column is 100mm; Described thermal pipe adopts wrong row's mode; Described water supply main pipe, backwater main pipe adopt the 316l stainless steel tube of Φ 159, and are arranged in the isolation strip in track; Described main pipe adopts reversed return type to arrange.
Further, the laying width of described heat exchange unit is 3500mm, length is 5200mm; 1km bridge adopts 380 groups of heat exchange units.
Described water supply main pipe, backwater main pipe hot circulating medium temperature are respectively 35 DEG C and 25 DEG C, and internal circulating load is 60.47kg/s.
The thickness of described isolation layer is 2mm.
The utility model considers that winter is under outdoor low temperature environment, is chronically exposed to outdoor heat distribution pipeline and can freezes that bursting by freezing even occurs is dangerous in blocking, adopt 20% ethylene glycol solution as circulatory mediator; For preventing thermal pipe on the impact of bridge flexible pavement and concrete structure, in heat exchange unit, solution out temperature controls in 25-35 DEG C; Pipe material adopts etch-proof 316l stainless steel tube, adopts sleeve weld to meet the stress requirement of weld.
Compared with prior art, the beneficial effects of the utility model are: adopt 20% ethylene glycol solution as circulatory mediator, can prevent winter heat distribution pipeline from can freeze that bursting by freezing even occurs is dangerous in blocking; Pipe material adopts etch-proof 316l stainless steel tube and adopts sleeve weld, solution can be prevented the corrosion of pipeline and meet the stress requirement of weld.This active anti-ice snow-melting system can meet southern area outside temperature-2.0 DEG C, the bridge freezing preventing and ice melting snow requirement of outdoor wind speed 8.0m/s.
Accompanying drawing explanation
The system architecture schematic diagram of Fig. 1 the utility model embodiment.
Fig. 2 is the bridge pavement partial longitudinal sectional view of the utility model embodiment.
Fig. 3 is the heat exchange unit tiling schematic diagram of the utility model embodiment.
Fig. 4 is main pipe and the heat exchange unit connection diagram of the utility model embodiment.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
See Fig. 1, Fig. 2, the present embodiment comprises and is layed in heat exchange unit layer 14 between bridge floor pitch lower floor 12 and bridge concrete layer 13 interface and isolation layer 15 from top to bottom successively, the heat-barrier material of isolation layer 15 to be laying depths be 2mm.Heat exchange unit layer 12 is made up of each heat exchange unit 1, and as seen from Figure 1, the hot circulating medium water supply arm 2 of each heat exchange unit 1, return branch 3 are communicated on hot circulating medium water supply main pipe 4, backwater main pipe 5 respectively.Water supply main pipe 4, backwater main pipe 5 are connected with boiler 6, and water supply main pipe 4 is provided with variable frequency pump 7, and water supply main pipe 4, backwater main pipe 5 are provided with thermometer 8, pressure meter 9 and valve 10; Water supply arm 2, the return branch 3 of each heat exchange unit 1 are provided with valve 11.Hot circulating medium adopts concentration to be the ethylene glycol solution of 20%; Boiler 6, variable frequency pump 7 and thermometer 8, pressure meter 9, valve 10, valve 11 are connected with control system (not shown in FIG.).
See Fig. 2, in the present embodiment, bridge deck structure is followed successively by bitumen layer from top to bottom, and (thickness is 100mm, wherein, the SMA-13 particulate formula modified bitumen upper strata 16 that 40mm is thick, AC-20 (C) the Zhong Lishi pitch lower floor 12 that 60mm is thick), layer of concrete 13 (thickness is the C50 concrete of 80mm), concrete pontic 17 (thickness is the C50 concrete of 200mm), wherein, heat exchange unit layer 14 is laid on above layer of concrete 13, and lays the thick isolation layer 15 of 2mm to stop heat going down on layer of concrete 13 surface.See Fig. 3, Fig. 4, Thermodynamic Simulation and indoor model test is used to carry out energy spectrometer to thermal pipe diabatic process, heat exchange unit 1 is that laying width is 3500mm (lane width), length is 5200mm, end to end thermal pipe pipe row, thermal pipe is the 316l stainless steel tube of DN20 and adopts sleeve weld, and pipe trestle column is 100mm; Thermal pipe adopts wrong row's mode, to ensure often to organize heat exchange unit heat radiation evenly; 1km bridge adopts 380 groups of heat exchange units.Water supply main pipe 4, backwater main pipe 5 adopt the 316l stainless steel tube of Φ 159, and are arranged in the isolation strip in track; Main pipe adopts reversed return type to arrange so that the resistance balance of each heat exchange unit; The hot circulating medium temperature of water supply main pipe 4, backwater main pipe 5 is respectively 35 DEG C and 25 DEG C, and internal circulating load is 60.47kg/s.Concentration be 20% ethylene glycol solution after boiler 6 is heated to 35 DEG C, enter heat exchange unit 1 by variable frequency pump 7 force feed, carry out heat transmission with deck asphalt layer, solution temperature get back to after being reduced to 25 DEG C boiler 6 continue heating, so circulate.
Claims (5)
1. based on the active anti-ice snow-melting system on thermal pipe heating road surface, it is characterized in that: it comprises and is layed in heat exchange unit layer between bridge floor pitch lower floor and bridge concrete layer interface and isolation layer from top to bottom successively; Heat exchange unit layer is made up of each heat exchange unit, the hot circulating medium water supply arm of each heat exchange unit, return branch are communicated on hot circulating medium water supply main pipe, backwater main pipe respectively, described water supply main pipe, backwater main pipe are connected with boiler, water supply main pipe is provided with variable frequency pump, and water supply main pipe, backwater main pipe are respectively equipped with thermometer, pressure meter and valve; The water supply arm of described each heat exchange unit, return branch are respectively equipped with valve; Described hot circulating medium adopts concentration to be the ethylene glycol solution of 20%; Described boiler, variable frequency pump and each thermometer, pressure meter, valve are connected with control system.
2. according to claim 1 based on the active anti-ice snow-melting system on thermal pipe heating road surface, it is characterized in that: described heat exchange unit is have necessarily laying width and length, end to end thermal pipe pipe to arrange, thermal pipe is the 316l stainless steel tube of DN20 and adopts sleeve weld, and pipe trestle column is 100mm; Described thermal pipe adopts wrong row's mode; Described water supply main pipe, backwater main pipe adopt
316l stainless steel tube, and be arranged in the isolation strip in track; Described main pipe adopts reversed return type to arrange.
3., according to claim 2 based on the active anti-ice snow-melting system on thermal pipe heating road surface, it is characterized in that: the laying width of described heat exchange unit is 3500mm, length is 5200mm; 1km bridge adopts 380 groups of heat exchange units.
4., according to claim 3 based on the active anti-ice snow-melting system on thermal pipe heating road surface, it is characterized in that: described water supply main pipe, backwater main pipe hot circulating medium temperature are respectively 35 DEG C and 25 DEG C, and internal circulating load is 60.47kg/s.
5., according to claim 1 based on the active anti-ice snow-melting system on thermal pipe heating road surface, it is characterized in that: the thickness of described isolation layer is 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269324.5U CN204589760U (en) | 2015-04-29 | 2015-04-29 | A kind of active anti-ice snow-melting system based on thermal pipe heating road surface |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520269324.5U CN204589760U (en) | 2015-04-29 | 2015-04-29 | A kind of active anti-ice snow-melting system based on thermal pipe heating road surface |
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| CN204589760U true CN204589760U (en) | 2015-08-26 |
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| CN201520269324.5U Expired - Fee Related CN204589760U (en) | 2015-04-29 | 2015-04-29 | A kind of active anti-ice snow-melting system based on thermal pipe heating road surface |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258245A (en) * | 2019-05-31 | 2019-09-20 | 深圳市创想体育设施工程有限公司 | A kind of artificial lawn system that can heat snow removing automatically |
-
2015
- 2015-04-29 CN CN201520269324.5U patent/CN204589760U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258245A (en) * | 2019-05-31 | 2019-09-20 | 深圳市创想体育设施工程有限公司 | A kind of artificial lawn system that can heat snow removing automatically |
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| Date | Code | Title | Description |
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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: 20150826 Termination date: 20180429 |
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| CF01 | Termination of patent right due to non-payment of annual fee |