CN202041865U - Solar PV device for melting snow on pavements - Google Patents
Solar PV device for melting snow on pavements Download PDFInfo
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- CN202041865U CN202041865U CN2010206236621U CN201020623662U CN202041865U CN 202041865 U CN202041865 U CN 202041865U CN 2010206236621 U CN2010206236621 U CN 2010206236621U CN 201020623662 U CN201020623662 U CN 201020623662U CN 202041865 U CN202041865 U CN 202041865U
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Abstract
The utility model discloses a solar PV (photovoltaic) device for melting snow on pavements. The solar PV device mainly comprises a solar power generation system, a pavement heating system and a control system, wherein the control system comprises a temperature measuring instrument, a thermocouple and a temperature control switch; the thermocouple is connected with the temperature measuring instrument; the temperature measuring instrument is connected with the temperature control switch; the pavement heating system mainly comprises a heating tube connected with the solar power generation system through the temperature control switch. The solar PV device provided by the utility model converts solar energy into electric energy, then converts the electric energy into heat energy, so as to effectively melt snow accumulated on the pavements.
Description
Technical field
The utility model relates to the traffic safety field, specifically is the device that descends to utilize heliotechnics melting road surface accumulated snow at snow day environment.
Background technology
Traffic department pays much attention to the traffic hazard and the antiskid problem of freezing in season with the cold district road surface always both at home and abroad, and it is regional especially to freeze at road surface accumulated snow, and has made big quantity research, explores the method that multiple inhibition road surface accumulated snow freezes.Deicing or snow melting method commonly used both at home and abroad at present comprises removing method and thawing method.The removing method can be divided into two kinds of artificial removing method and mechanical removal methods again; The thawing method comprises chemical thawing method and hot thawing method.Specifically can be divided into following some.
1, spreading Snow Agent
This method is the means that a kind of road surface deicing commonly used is in the world avenged, and reduces the ice and snow melting point by spreading chemical agent on the road surface, makes ice dissolution, and then removes accumulated snow and accumulated ice.Ice-melt snow agent commonly used both at home and abroad mainly contains salt and alcohols.
From practical effect, under certain environmental baseline, the spreading Snow Agent can effectively be removed road ice and snow, and the road improvement safety case improves road transport efficient.But the deicing effect of alcohols Snow Agent is influenced by environmental temperature, and has reef knot ice phenomenon, in case promptly environment temperature descends, the accumulated snow glaciation again of being melted makes the road surface more sliding, and road accident rate is higher.If environment temperature is crossed low or snowfall is excessive, Snow Agent self is difficult to dissolving fast, melts, must be by the effect that rolls of vehicle tyre, so ice-melt snow longer duration, weak effect causes integrated cost to raise significantly.
All there is corrosivity in most salt Snow Agent products, and perishable destruction road structure and motor vehicles also can pollute soil, water body and atmosphere etc., destroy ecologic environment.A statistical report according to the U.S., use in every year under the situation of 1,000 ten thousand tons of Snow Agent, can cause 2,900,000,000～5,900,000,000 dollars loss to road, vehicle, 0.75 hundred million～1.5 hundred million dollar loss is caused in the parking lot, cause 5%～10% plant pathology even withered.In addition, the use of Snow Agent once caused Beijing that more than 4000 big tree and the death of the shrub of strain more than 40,000 were arranged in 2003, and the meadow injured area reaches more than 30,000 square metre, more than 1,500 ten thousand yuan of direct economic losses.
This method is more thorough to ice and snow removing, but efficient is low, and the expense height influences vehicle pass-through and traffic safety during operation, can not long working, be applicable to that snowfall is hour or the ice and snow removing in emphasis difficult point highway section.
2, spreading sandstone material
The sandstone material of the certain particle diameter of spreading on ice and snow road as sand, aggregate chips, ashes, cinder and sand salt compound etc., can improve the friction factor of ice and snow road.The existence of sandstone makes the freezing strength of ice and snow layer inhomogeneous on the one hand, and on the other hand, sandstone makes snow be difficult for compacting in the motion of ice and snow layer, has reached the purpose of antiskid.This method is more thorough to Snowremoval, but efficient is low, expense is high, influence the current and traffic safety of traffic and can not long working, mainly is applicable to the Snowremoval in slight snow and difficult point highway section, and this method is the passive mode operation, has hysteresis quality.
3, mechanical removal method
The mechanical removal method is owing to adopt plant equipment (motor vehicles and machines shovel, push away, the sweep etc.) plant efficiency of dying height, be suitable for large tracts of land mechanization and remove operation, but when temperature is low, because the cohesive force between ice and the road surface is bigger, use snow removal with machine effect and bad separately, not thorough to the removing of ice face, can not fundamentally solve the anti-slide performance on road surface, traffic safety can not get effective guarantee.Though and mechanical blowing snow mode snow removing safety and environmental protection, but only be applicable to airport etc. be convenient to manage, more among a small circle, without rolled, the road surface accumulated snow of thinner thickness, generally be operation while snowing, the mechanical requirements amount is big, expense is high, in case and accumulated snow is rolled or freeze then powerless, this mode is not suitable for bigger highway of the volume of traffic and urban road snow removing.As seen, the mechanical type snow removing needs great amount of manpower and material resources and equipment, and belongs to the passive type hysteretic operation, need certain hour just can make traffic recover normal, and snow removing machinery is subjected to, and seasonal effect is strong, frequency of utilization is low, economic benefit is relatively poor.
4, thermal ice-melting snow method
This kind method utilizes the heat of generations such as hot water, combustion gas, electricity to make ice dissolution, as spraying the hot-water process, spraying Snow Agent method, automobile heating-mechanical thawing method etc.
Though this class methods deicing or snow melting effect is better, these methods often consume energy bigger, and the snow-broth that melts can be brought the impurity such as dust of road table into when entering pavement structure, accumulate in pavement structure inside, and then the obstruction hole, cause impeded drainage, influence the eliminating of snow-broth.
5, suppress the ice and snow technology from the stress road surface
Main by in the paving material, adding a certain amount of resilient particulate materials, change road surface and the contact condition of tire and the deformation characteristic on road surface, utilize the stronger characteristic of resilient material local deformation ability, by road surface outer load effect produce down from stress, make the broken thawing of ice and snow on road surfaces, thereby effectively suppress road surface accumulated snow and icing.Resilient material commonly used in this type of technology mostly is the rubber grain that is processed by junked tire.This not only can effectively improve the deicing ability on road surface, improves road safety performance and conevying efficiency, and for the recycling of waste and old resilient material provides scientific and rational new way, is beneficial to environmental protection, saves resource.This is a kind of passive snow melt mode, and the effect of snow melt is not so good.
6, conduction paving ice-melt snow technology
In the paving material, mix polymer class, carbon class or metal species conduction admixture, make the paving material of high-insulativity possess heat and electric perception and transfer capability, change electric energy into heat energy, heat energy is by the upwards conduction of surface of contact of paving material and ice and snow, temperature raise gradually after ice and snow absorbed heat, realized the purpose of snow melt (ice), and this method power consumption is bigger, the research of road surface insulating material and application are not finished yet, and its research and extension is worth further inquiring into and distillation.
7, Conversion of energy type ice-melt snow technology
Conversion of energy type ice-melt snow technology is by Conversion of energy equipment, is heat energy with other forms of Conversion of energy, reaches the purpose of snow melt (ice).
Utilizable energy mainly contains multiple energy such as industrial electric energy, sun power and underground heat.This technology can improve energy utilization rate, and clean environment firendly, is suitable for the needs of ice-melt snow in the local highway sections such as Large Longitudinal Slope of airport, bridge floor and highway.Common have heating cable method, infrared heat reservoir method, savings geothermal source heat pipe melt method, solar heat pipe method etc., owing to be subjected to the restriction of energy source, utilize the ice-melt snow technology of soil source heat pipe and sun power fulgurite just progressively to become the research focus.
Soil source hot pipe ice-melting snow technology is (bridge) face embedded set heat pipe on the road, utilize the soil source heat pipe, through the Lowlevel thermal energy of ground heat exchanger from underground extraction hometown earth, after heat pipe promotes, arrive the interior comb the inside of road (bridge) face by the higher FLUID TRANSPORTATION of pump handle temperature.When high-temperature hot fluid flows, heat by the convection heat transfer mode, is imported into road (bridge) face in comb.When the temperature of road (bridge) face reached more than 0 ℃, its lip-deep ice and snow will melt, thereby reached the purpose of snow melt (ice).And solar energy-electric energy deicing or snow melting pavement technique, be to utilize the storage of solar energy converting system to the fulgurite heating that is embedded in the road surface, in the time that does not influence traffic safety of regulation, the ice and snow that the road surface is saved bit by bit melts rapidly, thereby reaches the purpose of road surface deicing snow.
Existing snow melt technology mainly contains by the blowing snow of power shovel snow, and methods such as Snow Agent have environmental disruption and snow melt hysteresis quality.Adopt industrial electric energy and earth source heat pump snow melt in addition in addition, its cost is higher.
The utility model content
In order to solve the problem that above-mentioned prior art exists, the utility model provides a kind of photovoltaic snow melt pavement device, and this device is an electric energy with conversion of solar energy, again electric energy is converted into heat energy, then effective melting road surface accumulated snow.
A kind of photovoltaic snow melt pavement device, the technical scheme of this utility model is: it is made up of solar power system, road surface heating system and control system.Described control system comprises temperature measuring set, thermopair and temp control switch, thermopair is connected with temperature measuring set, temperature measuring set is connected with temp control switch, and the road surface heating system mainly comprises heating tube, and heating tube is connected with solar power system by temp control switch.
The temperature controlling range of described control system is spent between 6 degree 2.
The principle of work of this device is: solar power system is an electric energy with conversion of solar energy, and the road surface heating system is converted into heat energy with electric energy, improves pavement temperature to the road surface heating and carries out snow melt; Control system is controlled solar power system and road surface heating system, makes photovoltaic snow melt pavement device more effective.
Description of drawings
Fig. 1 is the solar power system synoptic diagram;
Fig. 2 is a road surface heating system synoptic diagram;
Fig. 3 is the total synoptic diagram of photovoltaic snow melt pavement device.
Among the figure, 1 is the heating tube power supply, and 2 is heating tube, and 3 is the road surface.
Embodiment
As shown in Figure 1, solar power system mainly is made up of solar cell array, controller, battery pack, DC-AC inverter, DC load and AC load.
Solar cell is a substrate with the solar battery cell of the least unit that transform light energy become electric energy, and solar battery cell generally is that the length of side is to form the semi-conductive a kind of of PN junction on the silicon plate of 10～15cm.Because the operating voltage of solar battery cell itself is about 0.45～0.50V, working current is 20～25mA/cm
2, generally can not use as power supply separately.With solar battery cell carry out series, parallel and the encapsulation after, just become solar module.When single solar module can not meet the demands, solar module through series, parallel and being contained on the support, has just been constituted solar cell array, satisfy load to obtain required output power.
Controller is meant charging-discharging controller, and it can prevent automatically that battery pack from overcharging and the equipment of overdischarge, generally also has simple measurement function.Battery pack is overcharged and the overdischarge meeting has a strong impact on its performance and life-span, so charging-discharging controller is indispensable.
The effect of battery pack is to store the electric energy that is sent when solar cell array is subjected to illumination, and powers to the load at any time.
The effect of DC-AC inverter is to be used to change direct current or AC load.
DC load or AC load are meant the heating tube in the heating system in the technical program.
As shown in Figure 2, the road surface heating system is to bury heating tube 2 or heating cable in the road surface 3 underground, for the purpose of structure and safety, adopt heating tube 2, heating tube 2 voltages are generally 110V or 220V, identical with inverter output voltage, can be an outlet or two outlet, heating tube 2 is by 1 power supply of heating tube power supply.
As shown in Figure 3, a kind of photovoltaic snow melt pavement device, it mainly is made up of solar power system, road surface heating system and control system.Described control system comprises temperature measuring set, thermopair and temp control switch, thermopair is connected with temperature measuring set, temperature measuring set is connected with temp control switch, and the road surface heating system mainly comprises heating tube, and heating tube is connected with solar power system by temp control switch.
Wherein, control system comprises a temperature measuring set, is used to measure thermopair, and thermopair can adopt K or T type, a temp control switch, its can be in the uniform temperature interval switch out-put supply.
Temp control switch is set to 2～6 ℃, buries thermopair on the road surface underground, and thermopair links to each other with control system, and the heating tube power supply links to each other with the control system out-put supply, so just can be controlled the heat time heating time of heating tube by pavement temperature, reaches the effect of conserve energy.
System just began snow melting when shop experiment and site test discovery pavement temperature must reach certain certain value (2～6 ℃), and this temperature value can be used as the controlling value of system.After when not snowing, the road surface being heated to 2 ℃, continue heating, when pavement temperature reaches 6 ℃, stop heating, when pavement temperature is lower than 2 ℃, begin heating again, keep pavement temperature more than 2 ℃, give full play to the preheating snow melt, the road surface is remained on can not be more than the temperature of accumulated snow, snowyly so promptly changes, can conserve energy and snow melting in time, guarantee road surface accumulated snow not throughout the year, reach real-time snow melting result.
Claims (2)
1. photovoltaic snow melt pavement device, it is characterized in that: described device is made up of solar power system, road surface heating system and control system; Described control system comprises temperature measuring set, thermopair and temp control switch, thermopair is connected with temperature measuring set, temperature measuring set is connected with temp control switch, and the road surface heating system mainly comprises heating tube, and heating tube is connected with solar power system by temp control switch.
2. photovoltaic snow melt pavement device according to claim 1 is characterized in that: the temperature controlling range of described control system is spent between 6 degree 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206236621U CN202041865U (en) | 2010-11-24 | 2010-11-24 | Solar PV device for melting snow on pavements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206236621U CN202041865U (en) | 2010-11-24 | 2010-11-24 | Solar PV device for melting snow on pavements |
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| Publication Number | Publication Date |
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| CN202041865U true CN202041865U (en) | 2011-11-16 |
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| CN2010206236621U Expired - Fee Related CN202041865U (en) | 2010-11-24 | 2010-11-24 | Solar PV device for melting snow on pavements |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061655A (en) * | 2010-11-24 | 2011-05-18 | 西安中交公路岩土工程有限责任公司 | Solar energy photovoltaic snowmelt pavement integrating system |
| CN106192667A (en) * | 2016-07-12 | 2016-12-07 | 重庆交通大学 | A kind of solar heating prevents the system and method that highway pavement freezes |
| CN109371779A (en) * | 2018-12-17 | 2019-02-22 | 山东省交通规划设计院 | Utilize the bridge floor intelligence deicing system and method for solar energy |
| CN109914184A (en) * | 2019-03-06 | 2019-06-21 | 东北大学 | A kind of road surface anti-icing dust-extraction unit and method automatically |
| CN113531919A (en) * | 2021-07-06 | 2021-10-22 | 西安交通大学 | Multisource complementary railway turnout snow and ice melting system and method |
-
2010
- 2010-11-24 CN CN2010206236621U patent/CN202041865U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102061655A (en) * | 2010-11-24 | 2011-05-18 | 西安中交公路岩土工程有限责任公司 | Solar energy photovoltaic snowmelt pavement integrating system |
| CN106192667A (en) * | 2016-07-12 | 2016-12-07 | 重庆交通大学 | A kind of solar heating prevents the system and method that highway pavement freezes |
| CN109371779A (en) * | 2018-12-17 | 2019-02-22 | 山东省交通规划设计院 | Utilize the bridge floor intelligence deicing system and method for solar energy |
| CN109914184A (en) * | 2019-03-06 | 2019-06-21 | 东北大学 | A kind of road surface anti-icing dust-extraction unit and method automatically |
| CN113531919A (en) * | 2021-07-06 | 2021-10-22 | 西安交通大学 | Multisource complementary railway turnout snow and ice melting system and method |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111116 Termination date: 20131124 |