CN213013757U - Cold region tunnel pavement heat preservation system based on pavement photovoltaic - Google Patents
Cold region tunnel pavement heat preservation system based on pavement photovoltaic Download PDFInfo
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- CN213013757U CN213013757U CN202021140609.6U CN202021140609U CN213013757U CN 213013757 U CN213013757 U CN 213013757U CN 202021140609 U CN202021140609 U CN 202021140609U CN 213013757 U CN213013757 U CN 213013757U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a cold district tunnel road surface heat preservation system based on road surface photovoltaic, the system includes: the upper surfaces of the foundation insulating layer outside the tunnel and the cement concrete pavement in the tunnel, which are parallel and level, are provided with at least one groove; in response to the road surface temperature monitored by the temperature control probe, the electric heating tape heats the road surface to enable the road surface temperature to reach a preset temperature range; the plurality of glass patches are vertically supported on the heating layer, a gap is formed between every two adjacent glass patches, and the photovoltaic panel is rotatably arranged in the gap to face the sun all the time; the transparent concrete pavement with the light transmittance not less than 90% covers the photovoltaic slab layer; the grid-connected photovoltaic control and inversion integrated machine is electrically connected with the photovoltaic panel to convert the direct current electric energy into alternating current electric energy, the alternating current electric energy is transmitted to a public power grid, and the public power grid is electrically connected with the electric heating belt.
Description
Technical Field
The utility model relates to a cold district tunnel prevent frostbite cold-proof technical field, especially a cold district tunnel road surface heat preservation system based on road surface photovoltaic.
Background
With the increasing development of economy in China and the continuous expansion of road networks, more and more tunnels are planned and built in severe cold areas with high sea waves. Compared with the common tunnel, the cold region tunnel has severe weather, and the temperature of the region where the tunnel is located can be kept below 0 ℃ for a long time. The road is frozen and the snow is accumulated, so that the friction force of the road surface is reduced, the vehicle is braked and steered to be out of order, and the passing safety of the tunnel is influenced. Meanwhile, the tunnel in the cold region is generally affected by seasonal freezing and thawing and frost heaving, and the tunnel pavement is damaged due to the periodical freezing and thawing and frost heaving effects.
One of the basic measures of preventing and treating the freezing injury of the tunnel in severe cold and cold areas is heat preservation and freeze prevention, the temperature of the road surface in the tunnel can be kept above 0 ℃ by heating and preserving the heat of the tunnel road surface, the tunnel road surface is prevented from being frozen and accumulated with snow, and the traffic capacity of the tunnel is not affected when the external temperature is lower than 0 ℃. In order to ensure that the tunnel pavement is not iced or accumulated with snow, the tunnel pavement is widely applied at present: manual removal, mechanical removal, deicing and snow melting by methods such as ice salt and the like. These methods cannot timely remove ice and snow to ensure that the road is constantly kept in an ice-free state, and can damage the road surface structure and the external environment. Also currently used are methods for deicing and melting snow using geothermal systems. But it has the defects of large energy consumption, large floor area, limited practical range, serious maintenance and repair, serious water resource waste and the like. And because the wind speed of the tunnel at different moments is different, the external temperature is different, and the service life of the tunnel is prolonged, so that the length of the pavement in the tunnel, which is lower than 0 ℃, is different.
The above information disclosed in the background section is only for enhancement of understanding of the background of the invention and therefore it may contain information that does not form the prior art that is well known to those of ordinary skill in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention aims to overcome the above-mentioned drawbacks of the prior art and provide a cold region tunnel pavement thermal insulation system based on pavement photovoltaic.
The purpose of the utility model is realized by the following technical scheme.
A cold region tunnel pavement thermal insulation system based on pavement photovoltaic comprises,
at least one temperature control probe for monitoring the road surface temperature;
the upper surfaces of the foundation insulating layer outside the tunnel and the cement concrete pavement in the tunnel, which are parallel and level, are provided with at least one groove;
a thermal insulation layer laid on the tank;
a heating layer comprising at least one electric heating tape accommodated in the tank, the electric heating tape heating to bring a road surface temperature to a predetermined temperature range in response to the road surface temperature monitored by the temperature control probe;
a photovoltaic plate layer which is positioned above the heating layer and can be irradiated by sunlight comprises,
a plurality of glass patches vertically supported to the heating layer with a space formed between adjacent glass patches, an
A plurality of photovoltaic panels rotatably disposed in the compartment to face the sun at all times;
the transparent concrete pavement with the light transmittance not less than 90% covers the photovoltaic slab;
and the grid-connected photovoltaic control and inversion all-in-one machine is electrically connected with the photovoltaic panel to convert the direct current electric energy into alternating current electric energy, the alternating current electric energy is transmitted to a public power grid, and the public power grid is electrically connected with the electric heating belt.
In the cold region tunnel pavement heat preservation system based on pavement photovoltaic, a storage battery is connected with the grid-connected photovoltaic control and inversion all-in-one machine to store the electric energy.
In the cold region tunnel pavement heat preservation system based on pavement photovoltaic, grid-connected photovoltaic and control and inversion integrated machine are electrically connected with the storage battery, and the electric heating tape is electrically connected with the temperature controller.
In the cold region tunnel pavement heat insulation system based on pavement photovoltaic, the electric heating belt comprises a self-temperature-limiting electric heating belt, PTC materials are filled in two parallel lines to serve as core wires, and a layer of insulating materials is wrapped outside the core belts to serve as a protective layer.
In the cold region tunnel pavement heat insulation system based on the pavement photovoltaic, a steel wire mesh is laid on the electric heating belt in the tunnel, and the photovoltaic panel is connected with the steering engine to face the sun all the time.
In the cold region tunnel pavement heat insulation system based on pavement photovoltaic, supporting platforms are respectively arranged on the inner sides of the intervals, and toughened glass is placed on the supporting platforms.
In the cold region tunnel pavement heat insulation system based on pavement photovoltaic, toughened glass is bonded to a supporting platform through a binder, and the supporting platform is provided with a waterproof glue layer.
In the cold region tunnel pavement heat insulation system based on pavement photovoltaic, the electric heating tape is a heating cable, and the heating cable is laid in the groove to be S-shaped and fixed.
In the cold region tunnel pavement heat preservation system based on pavement photovoltaic, the storage battery comprises a silicon energy storage battery.
In the cold region tunnel pavement heat insulation system based on pavement photovoltaic, a plurality of grooves extending in the direction perpendicular to the tunnel are uniformly distributed on the upper surface of a cement concrete pavement in the tunnel and the upper surface of a basic insulation layer outside the tunnel.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses an electric heat tape, more traditional manual work, machinery is clear away and is adopted modes such as ice salt to remove snow and melt ice more in time, and still less to the influence of road surface structure and environment, the heating effect is better, and is more stable. Compared with the method using a geothermal system, the service life of the device is longer, the maintenance and management cost is less, and the occupied space is smaller. The influence of icy road snow on the tunnel traffic capacity can be effectively prevented. The utility model discloses utilize temperature control device and electric heat tape to combine, thereby detect whether the temperature in the different regions in road surface is less than 0 ℃ through the control by temperature change probe and open different regions's electric heat tape, also can judge simultaneously that road surface temperature is more than 3 ℃, thereby close different regions's electric heat tape. The heat insulation material has the function of saving electric energy, and improves the heat utilization rate. The utility model discloses a photovoltaic road surface technique, used road surface material frictional force is higher than general bituminous paving frictional force, can increase the security of driving in winter. Direct current generated by the photovoltaic pavement can be converted into alternating current through the grid-connected photovoltaic inversion and control integrated machine so as to be connected with a public power grid in a grid mode, solar energy is fully utilized, and clean energy is used to the maximum extent. The photovoltaic panel is arranged below the road surface, so that the photovoltaic panel is not required to be arranged in an extra field, and the design and construction amount is reduced; the rotation angle of the photovoltaic panel can be adjusted below the road surface according to the illumination period, and the texturing technology is adopted on the surface of the photovoltaic panel, so that solar energy can be utilized to generate electricity to the maximum extent. The power supply system consisting of the storage battery, the public power grid and the photovoltaic road surface can better ensure the power supply stability of the heat supply system and improve the safety of the system. And ensuring the normal passage of the tunnel. The silicon energy storage battery is placed in the tunnel to be safer, and potential safety hazards are reduced compared with the common storage battery. The grid-connected photovoltaic control and inversion integrated machine can better prevent the storage battery from being overcharged, and the problem of disordered circuits caused by respectively arranging the controller and the inverter is avoided. The system is more stable, safe and reliable.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the technical means of the present invention is implemented to the extent that those skilled in the art can implement the technical solutions according to the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following description is given by way of example of the embodiments of the present invention.
Drawings
Various other advantages and benefits of the present invention will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort. Also, like parts are designated by like reference numerals throughout the drawings.
In the drawings:
FIG. 1 shows the operation of the heat preservation system;
FIG. 2 is a schematic view of a thermal insulation system;
FIG. 3 is a schematic diagram of the layout of heating cables on the road surface in the tunnel of the heat preservation system;
FIG. 4 is a schematic view of the heating cable layout of the tunnel outer road surface of the heat preservation system;
FIG. 5 is a schematic view of paving of a pavement side ditch in a tunnel of the heat preservation system;
FIG. 6 is a detailed view of the photovoltaic panel;
the reference numerals in the figures denote: 1-alternating current power line, 2-direct current power line, 3-storage battery, 4-grid-connected photovoltaic control and inversion integrated machine, 5-fine aggregate asphalt concrete pavement, 6-medium aggregate asphalt concrete pavement, 7-cement concrete pavement, 8-glass patch, 9-transparent concrete pavement, 10-base insulating layer, 11-temperature controller, 12-self-temperature-limiting cable, 13-thermal insulation layer, 14-photovoltaic panel, 15-transverse seam, 16-protection tube, 17-concrete lining, 18-drilling hole, 19-roadside ditch, 20-cable trough, 21-power line, 22-toughened glass, 23-supporting platform, 24-waterproof glue layer and 25-transparent concrete.
The invention is further explained below with reference to the drawings and examples.
Detailed Description
Specific embodiments of the present invention will be described in more detail below with reference to fig. 1 to 6. While specific embodiments of the invention are shown in the drawings, it will be understood that the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
It should be noted that certain terms are used throughout the description and claims to refer to particular components. As one skilled in the art will appreciate, various names may be used to refer to a component. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The following description is of the preferred embodiment of the invention, and is made for the purpose of illustrating the general principles of the invention and not for the purpose of limiting the invention. The protection scope of the present invention is subject to the limitations defined by the appended claims.
For the purpose of facilitating understanding of the embodiments of the present invention, the following description will be given by way of example with reference to the accompanying drawings, and the drawings do not limit the embodiments of the present invention.
For better understanding, as shown in fig. 1 to 6, a pavement photovoltaic based cold region tunnel pavement thermal insulation system includes,
at least one temperature control probe for monitoring the road surface temperature;
the upper surfaces of the foundation insulating layer 10 outside the tunnel and the cement concrete pavement (7) in the tunnel, which are level with each other, are provided with at least one groove;
a thermal insulation layer 13 laid on the tank;
a heating layer comprising at least one electric heating belt 12 accommodated in the tank, the electric heating belt 12 heating such that a road surface temperature reaches a predetermined temperature range in response to the road surface temperature monitored by the temperature control probe;
a photovoltaic panel 14 layer, the photovoltaic panel 14 layer capable of being irradiated by sunlight above the heating layer comprises,
a plurality of glass patches 8 vertically supported to the heating layer with a space formed between adjacent glass patches 8, an
A plurality of photovoltaic panels 14, the photovoltaic panels 14 being rotatably disposed in the compartment to face the sun at all times;
the light transmittance of the transparent concrete pavement 9 covering the photovoltaic panel 14 layer is not less than 90 percent,
and the grid-connected photovoltaic control and inversion all-in-one machine 4 is electrically connected with the photovoltaic panel 14 to convert the direct current electric energy into alternating current electric energy, the alternating current electric energy is transmitted to a public power grid, and the public power grid is electrically connected with the electric heating belt 12.
In the preferred embodiment of the cold-region tunnel pavement thermal insulation system based on pavement photovoltaic, the storage battery 3 is connected with the grid-connected photovoltaic control and inversion all-in-one machine 4 to store the electric energy,
in the preferred embodiment of the pavement photovoltaic based cold region tunnel pavement thermal insulation system, the controller is electrically connected with the storage battery 3 to prevent the storage battery 3 from being overcharged.
In the preferred embodiment of the pavement photovoltaic based cold region tunnel pavement thermal insulation system, when the pavement needs to be heated and the public power grid has no fault, the electric energy generated by the photovoltaic panel 14 is merged into the public power grid, and the electric heating belt 12 is powered by the public power grid; when the public power grid fails, the photovoltaic panel 14 or the storage battery 3 supplies power to the electric heating belt 12 until the public power grid is repaired.
In the preferable embodiment of the pavement photovoltaic based cold region tunnel pavement heat preservation system, the electric heating belt 12 is electrically connected with the temperature controller 11, when the temperature control probe in the preset region in the tunnel detects that the temperature is lower than 0 ℃, the temperature controller controls the electric heating belt 12 to heat, and when the pavement reaches the temperature of 3 ℃, the temperature controller controls the electric heating belt 12 to stop working.
In the preferable embodiment of the pavement photovoltaic based cold region tunnel pavement heat preservation system, the electric heating belt comprises a self-temperature-limiting electric heating belt 12, PTC materials are filled in two parallel lines to serve as core wires, a layer of insulating materials are wrapped outside the core belt to serve as a protective layer, when a power supply is switched on, current is transmitted to the other wire through one wire to form a loop, and the core wires emit heat after being electrified.
In the preferable embodiment of the pavement photovoltaic based cold region tunnel pavement heat preservation system, a steel wire mesh is laid on the electric heating belt 12 in the tunnel, and the photovoltaic plate 14 is connected with the steering engine to face the sun at an optimal angle all the time.
In the preferred embodiment of the pavement photovoltaic based cold region tunnel pavement thermal insulation system, the inner sides of the intervals are respectively provided with a supporting platform 23, and toughened glass 22 is placed on the supporting platforms 23.
In the preferred embodiment of the pavement photovoltaic based cold region tunnel pavement thermal insulation system, the electric heating belt 12 is a heating cable, and the heating cable is laid in the groove in an S shape and fixed.
In a preferred embodiment of the pavement photovoltaic based cold region tunnel pavement thermal insulation system, the storage battery 3 comprises a silicon energy storage battery.
In order to further understand the utility model discloses, in an embodiment, the heat preservation system includes heat tracing cable, temperature controller 11, accuse temperature probe, insulating layer 13, the photovoltaic road surface, temperature sensor, and photovoltaic control and contravariant all-in-one 4, battery 3 are incorporated into the power networks. The system can effectively solve the problem of heat preservation of the tunnel pavement in the cold region, reduce the adverse effect of the frozen and accumulated snow on the tunnel pavement on the tunnel traffic capacity, reduce the cost of deicing and melting snow in the tunnel, and constantly ensure the smoothness of driving in the tunnel. Meanwhile, clean energy is generated through photovoltaic pavement power generation, so that the environment is effectively protected, and economic and social benefits are improved.
In one embodiment, the electrical heating tape employs an electrical tracing technique. The electric heating belt 12 is electrified to generate heat, so that the temperature is transferred to the road surface, the road surface is always kept above 0 ℃, and the tunnel road surface is prevented from being frozen and accumulated with snow.
In one embodiment, the heating layer comprises an electric heating belt 12 and a temperature control device and a thermal insulation layer 13. The electric heating belt 12 converts electric energy into heat energy by electrifying the heating cable with the heating wire as a heat source, and transmits the heat energy to the heated body. And the heat insulating material is arranged below the electric heating belt, so that the heating and heat insulating effects required by the system are achieved.
In one embodiment, a photovoltaic roadway power generation system includes: the system comprises a photovoltaic pavement, a grid-connected photovoltaic control and inversion integrated machine 4 and a storage battery 3. The photovoltaic pavement absorbs light energy through a solar panel therein to perform photoelectric conversion to form direct current, and the direct current is stored in the storage battery 3. When the storage battery 3 is fully charged, the storage battery 3 is prevented from being overcharged through the grid-connected photovoltaic control and inversion integrated machine 4, so that the service life of the storage battery 3 is prolonged. When the storage battery 3 is fully charged, the direct current generated by the photovoltaic panel 14 is converted into alternating current through the grid-connected photovoltaic control and inversion integrated machine 4 and is merged into a public power grid. When the road surface needs to be heated and the public power grid has no fault, electric energy generated by the photovoltaic road surface is merged into the public power grid, and the heating system is powered by the public power grid; and when the public power grid fails, the photovoltaic pavement or the storage battery 3 supplies power to the heating system until the public power grid is repaired.
In one embodiment, the ribbon heater 12 is a self-limiting ribbon heater 12. PTC materials are filled in the two parallel lines to serve as core wires, and a layer of insulating materials is wrapped outside the core belt to serve as a protective layer. When the power supply is switched on, the current is transmitted to the other conducting wire through one conducting wire to form a loop, and the core wire generates heat after being electrified so as to compensate the heat dissipation loss of the pipeline. Because the whole temperature control process is completed through the automatic adjustment of the PTC material, the surface of the heat tracing band can be kept at a constant temperature, and the phenomenon that certain parts with poor heat dissipation are overtemperature to influence the work of the temperature sensor is prevented. Because the temperature of the road surface in the tunnel is influenced by various factors such as wind speed in the tunnel, heat insulation performance of the lining insulation board, external temperature and the like, the length of the road surface in the tunnel, which is lower than 0 ℃, is different at different moments. The heating time required in different sections of the tunnel is therefore different. The tunnel pavement is divided into different areas, and a temperature sensor and a temperature control probe are arranged in each area. When the temperature control probe in a certain area in the tunnel detects that the temperature is lower than 0 ℃, the self-temperature-limiting type electric heating belt 12 in the area starts to work through the temperature sensor. When the temperature of the road surface reaches 3 ℃, the road surface stops working, so that the energy can be effectively saved. The heat insulating material placed below the electric heating belt 12 can diffuse heat generated by the heating cable to the upper portion, reducing heat diffused to the lower portion, thereby improving heat utilization. The heat insulating material can be heat insulating paint or aluminum foil composite bubble film.
In one embodiment, the transparent concrete pavement 9 with the light transmittance of more than 90% is arranged on the top of the photovoltaic pavement, and the photovoltaic pavement has a higher friction coefficient than that of a common asphalt pavement and has higher light transmittance. The pavement has better high-temperature stability and low-temperature crack resistance, and can meet the use requirements. The middle layer is a photovoltaic plate 14 layer which can absorb and store solar energy and perform photoelectric conversion and is also a bearing layer; the lower layer is a base insulating layer 10. The bearing layer comprises transparent concrete and vertical toughened glass paster 8, can place photovoltaic board 14 between paster 8 to make give certain vertical space of photovoltaic board 14, make the photovoltaic board 14 that links to each other with the steering wheel can be at certain angle internal rotation. The photovoltaic panel 14 is always kept at the optimal angle, and the time of the photovoltaic panel 14 being irradiated by sunlight is increased. The surface of the photovoltaic panel 14 adopts a texturing technology to improve the working performance of the photovoltaic panel in a low-light environment and improve the photoelectric conversion rate. The 8 both sides of toughened glass 22 paster are provided with the platform, place toughened glass 22 on the platform, and the toughened glass 22 of each position passes through the binder and bonds, and its cushion cap outside department is provided with waterproof glue layer 24, prevents to permeate water, guarantees solar panel's normal operating. The bonding material between each layer is laid by adopting an insulating bonding material, so that the bonding between each layer is ensured, and the electric leakage can be prevented. The temperature sensors are arranged in one group every 25m along the photovoltaic road surface. When the electric heating belt 12 works in winter, the heat reaches the road surface in two modes: one is directly transferred to the road surface through the concrete, and the other is transferred to the road surface through the space where the photovoltaic panel 14 is located and the upper tempered glass 22 finally through the concrete.
In one embodiment, the storage battery 3 is a silicon storage battery 3, the material recovery rate can reach 99%, and the storage battery has no harm, no acid mist, no liquid leakage and no corrosion to a polar plate in the use process. The discarded waste is weak acid, pollution-free and easy to treat, and the battery pole plate can be regenerated and used, so that the battery pole plate is safer to place in the tunnel compared with the common battery. The controller and the inverter adopt a grid-connected photovoltaic control and inversion integrated machine 4, direct current generated by a photovoltaic road surface can be changed into alternating current meeting the requirement of a public power grid through the inverter, and the alternating current is merged into the public power grid to feed back electric power to the power grid. And stable electric energy can be provided for the heating system when the public power grid fails. Meanwhile, the grid-connected photovoltaic and inversion control integrated machine 4 avoids the problem of circuit disorder caused by respectively arranging the controller and the inverter. Particularly in such a limited space as a tunnel, excessively disordered wiring and unreliable storage batteries 3 can cause major safety hazards.
In one embodiment, after the foundation insulation layer 10 or the cement concrete pavement is constructed, a groove with the width of 2cm and the depth of 2cm is carved on the upper surface of the insulation layer or the cement concrete pavement, and a heat insulation material is arranged at the lower part of the groove, so that the temperature of the electric heating belt 12 is transferred upwards, the heat utilization rate is improved, temperature control probes arranged at the two sides of the pavement are connected, and the working time of the self-temperature-limiting type cable is adjusted through the temperature controller 11. The heating cable is laid in the groove in an S-shape and fixed. After the heating cable in the tunnel is laid, a layer of steel wire mesh with the diameter of 3 multiplied by 3cm is laid on the heating cable. And then the construction is the same as that of other composite pavements. When the heating cable enters the cable groove 20 and the power cord 21 through the roadside ditch 19, a hole is drilled between the roadside ditch 19 and the cable groove 20, and the heating cable is protected by the protection pipe 16.
In one embodiment, after the lower foundation layer is constructed and the electric heating belt 12 is installed, a partition is arranged on the lower foundation layer to separate the space of the installation space of the photovoltaic panel 14, and transparent concrete is poured at other parts. After the concrete is condensed, the partition board is removed, the insulating bonding material is laid on the surface of the inner side of the reserved installation space, the vertical toughened glass 8 is installed, the toughened glass bearing platform 23 is installed, and the waterproof glue layer 24 is laid. And meanwhile, a solar panel capable of automatically controlling the direction according to the sunlight irradiation direction is installed and connected with a circuit. Then, an insulating adhesive material is laid on the upper portion of the platform of the tempered glass 22, and the upper tempered glass 22 is mounted on the platform. And finally, a layer of transparent concrete material is laid on the pavement to ensure the friction force of the pavement and ensure the normal use of the pavement in winter. The alternating current power distribution cabinet is arranged at a smooth place near the tunnel portal, so that the influence caused by the fault of the public power grid is reduced, and the stability of the system is enhanced. And arranging the grid-connected photovoltaic and inversion integrated machine 4 at a proper position in the tunnel. The storage battery 3 is provided with a special storage battery 3 chamber and takes certain safety protection measures to prevent fire in the tunnel and vehicle collision from influencing the storage battery 3 to cause safety accidents.
As shown in fig. 2, in one embodiment, a power line 21, a temperature controller 11 and the electric heating tape 12 are connected. The temperature controller 11 controls the heating temperature of the electric heating belt 12.
As shown in fig. 3, in one embodiment, the ribbon heater 12 communicates with the cable trough 20 through the bore 18 via the protective tube 16.
In one embodiment, the plurality of electric heating strips are independently powered to generate heat.
In one embodiment, as shown in FIG. 4, transverse seams 15 are provided between the electric heating tapes 12. The electric heating tape 12 is passed through the concrete lining 17 and the roadside ditch 19 via the protective pipe 16.
As shown in fig. 5, in one embodiment, the road surface passes through a tunnel in a cold region, the cement concrete pavement 7 in the tunnel is flush with the upper surface of the foundation insulation layer outside the tunnel, and a plurality of grooves extending on the upper surface in a direction vertical to the tunnel are uniformly distributed on the upper surface, the medium aggregate asphalt concrete surface 6 is laid on the upper surface, the fine aggregate asphalt concrete surface 5 is laid on the medium aggregate asphalt concrete surface 6, and the upper surface of the fine aggregate asphalt concrete surface 5 is flush with the upper surface of the transparent concrete surface 9.
In one embodiment, the storage battery 3 is connected with the grid-connected photovoltaic control and inversion all-in-one machine 4 through an alternating current power line 1. The grid-connected photovoltaic control and inversion integrated machine 4 is connected with a public power grid through an alternating current power line 1.
In one embodiment, the grid-connected photovoltaic control and inversion all-in-one machine 4 is connected with the heating layer through a direct current power line 2.
As shown in fig. 6, in one embodiment, the tempered glass 22 is bonded to the supporting platform 23 by an adhesive, the adhesive is an insulating bonding material, and the supporting platform 23 is provided with a waterproof adhesive layer 24.
The utility model discloses a road surface photovoltaic technology combines temperature control sensor to heat the road surface through the heating band and keeps warm. The heating zone is adopted, the heating effect is good, the heating area can be controlled, the failure rate is lower than that of other modes, the occupied space in the tunnel is small, and the heating device is economical and environment-friendly. The pavement photovoltaic technology is adopted, and a solar panel installation place is not required to be additionally arranged. The road surface of 90% luminousness can see through sufficient light energy electricity generation for the solar panel of below, and the frictional force on its road surface is great than ordinary asphalt concrete, has ensured the security of driving. The solar panel below the concrete pavement can rotate according to the illumination direction, and the texturing technology is adopted on the surface of the solar panel, so that solar energy can be utilized to generate electricity to the maximum extent. Therefore, the system effectively ensures the smoothness of the tunnel travelling crane. Meanwhile, clean energy is generated through photovoltaic pavement power generation, so that the environment is effectively protected, and economic and social benefits are improved.
The utility model discloses a mode that solar photovoltaic board and commercial power combined together and used, not only green can also exert respective advantage, saves engineering cost, in the insufficient condition of illumination, also need not worry the not enough condition of heating cable heat supply. The heating cable is used for heating the road surface, so that the heating effect is good, the environment is protected, no pollution is caused, the operation is simple and convenient, the road surface cannot be abraded, and the smoothness is kept. Therefore, the system effectively improves the tunnel traffic capacity in cold regions, and simultaneously improves the driving safety and comfort of drivers and passengers, thereby comprehensively improving the service quality and the operation efficiency of the tunnel.
Industrial applicability
Cold district tunnel road surface heat preservation system based on road surface photovoltaic can make and use in cold district tunnel's cold-proof field.
The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is for the purpose of illustration and description and is not intended to be limiting, since the foregoing disclosure is not intended to be exhaustive or to limit the disclosure to the precise details disclosed.
The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.
Claims (10)
1. A cold region tunnel pavement thermal insulation system based on pavement photovoltaic is characterized by comprising,
at least one temperature control probe for monitoring the road surface temperature;
the upper surfaces of the foundation insulating layer outside the tunnel and the cement concrete pavement in the tunnel, which are parallel and level, are provided with at least one groove;
a thermal insulation layer laid on the tank;
a heating layer comprising at least one electric heating tape accommodated in the tank, the electric heating tape heating to bring a road surface temperature to a predetermined temperature range in response to the road surface temperature monitored by the temperature control probe;
a photovoltaic plate layer which is positioned above the heating layer and can be irradiated by sunlight comprises,
a plurality of glass patches vertically supported to the heating layer with a space formed between adjacent glass patches, an
A plurality of photovoltaic panels rotatably disposed in the compartment to always face the sun at an optimal angle;
the transparent concrete pavement with the light transmittance not less than 90% covers the photovoltaic slab;
the grid-connected photovoltaic control and inversion integrated machine is electrically connected with the photovoltaic panel to convert direct current electric energy into alternating current electric energy, the alternating current electric energy is transmitted to a public power grid, and the public power grid is electrically connected with the electric heating belt.
2. The cold-region tunnel pavement thermal insulation system based on pavement photovoltaics as claimed in claim 1, wherein a storage battery is connected with the grid-connected photovoltaic control and inversion all-in-one machine to store the electric energy.
3. The cold-region tunnel pavement thermal insulation system based on pavement photovoltaics as claimed in claim 2, wherein the grid-connected photovoltaic control and inversion all-in-one machine is electrically connected with the storage battery, and the electric heating tape is electrically connected with the temperature controller.
4. The pavement photovoltaic-based cold region tunnel pavement thermal insulation system according to claim 1, wherein the electric heating tape comprises a self-temperature-limiting type electric heating tape, wherein PTC materials are filled in two parallel lines to form core wires, and a layer of insulating materials is wrapped outside the core tape to form a protective layer.
5. The cold-region tunnel pavement thermal insulation system based on pavement photovoltaics as claimed in claim 1, wherein a steel wire mesh is laid on the electric heating belt in the tunnel, and the photovoltaic panel is connected with a steering engine to face the sun all the time.
6. The pavement photovoltaic-based cold area tunnel pavement thermal insulation system as claimed in claim 1, wherein support platforms are respectively arranged on the inner sides of the gaps, and toughened glass is placed on the support platforms.
7. The pavement photovoltaic cold region tunnel pavement insulation system as claimed in claim 6, wherein the toughened glass is bonded to the support platform through an adhesive, and the support platform is provided with a waterproof adhesive layer.
8. The pavement photovoltaic based cold region tunnel pavement insulation system according to claim 1, wherein the electric heating tape is a heating cable, and the heating cable is laid in the groove in an S shape and fixed.
9. The pavement photovoltaic-based cold zone tunnel pavement insulation system of claim 2, wherein the battery comprises a silicon energy battery.
10. The pavement photovoltaic cold area tunnel pavement insulation system based on claim 1, wherein the upper surface of the cement concrete pavement inside the tunnel and the upper surface of the foundation insulation layer outside the tunnel are uniformly distributed with a plurality of grooves extending in a direction vertical to the tunnel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021140609.6U CN213013757U (en) | 2020-06-18 | 2020-06-18 | Cold region tunnel pavement heat preservation system based on pavement photovoltaic |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021140609.6U CN213013757U (en) | 2020-06-18 | 2020-06-18 | Cold region tunnel pavement heat preservation system based on pavement photovoltaic |
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| CN213013757U true CN213013757U (en) | 2021-04-20 |
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| CN202021140609.6U Active CN213013757U (en) | 2020-06-18 | 2020-06-18 | Cold region tunnel pavement heat preservation system based on pavement photovoltaic |
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