CN110273346A - A kind of tunnel portal section heat-insulation system using solar-photovoltaic technology - Google Patents
A kind of tunnel portal section heat-insulation system using solar-photovoltaic technology Download PDFInfo
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- CN110273346A CN110273346A CN201910707295.9A CN201910707295A CN110273346A CN 110273346 A CN110273346 A CN 110273346A CN 201910707295 A CN201910707295 A CN 201910707295A CN 110273346 A CN110273346 A CN 110273346A
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- 238000009413 insulation Methods 0.000 title claims abstract description 23
- 238000013083 solar photovoltaic technology Methods 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 110
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- 239000010410 layer Substances 0.000 claims description 45
- 239000000463 material Substances 0.000 claims description 32
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 239000004568 cement Substances 0.000 claims description 15
- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
- 239000011384 asphalt concrete Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- 238000005260 corrosion Methods 0.000 claims description 6
- 239000011241 protective layer Substances 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
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- 239000010703 silicon Substances 0.000 claims description 3
- 238000005253 cladding Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 12
- 238000009933 burial Methods 0.000 abstract description 2
- 230000009972 noncorrosive effect Effects 0.000 abstract description 2
- 230000005855 radiation Effects 0.000 abstract description 2
- 238000010257 thawing Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 description 8
- 238000005286 illumination Methods 0.000 description 7
- 238000009826 distribution Methods 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 230000015271 coagulation Effects 0.000 description 4
- 238000005345 coagulation Methods 0.000 description 4
- 239000002689 soil Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000011900 installation process Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
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- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
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- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 206010039203 Road traffic accident Diseases 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/24—Methods or arrangements for preventing slipperiness or protecting against influences of the weather
- E01C11/26—Permanently installed heating or blowing devices ; Mounting thereof
- E01C11/265—Embedded electrical heating elements ; Mounting thereof
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/10—Supporting structures directly fixed to the ground
-
- 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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The invention discloses a kind of tunnel portal section heat-insulation systems using solar-photovoltaic technology, including road-surface heating system and power supply system, road-surface heating system to be laid in tunnel portal road section surface；Power supply system is connect with road-surface heating system, for providing electric energy for road-surface heating system；Road-surface heating system includes heating cable and feed cable, heats cable laying inside pavement concrete, and feed cable is laid in tunnel cable slot, and one end of feed cable and heating cable connection, the other end are connect with power supply system；The present invention in the concrete road surface of tunnel portal section by being arranged road-surface heating system, tunnel in cold area hole is heated using heating cable, the heat of heating cable radiation is transferred to body structure surface by structure sheaf, heats ice and snow by way of sensible heat and latent heat, makes its thawing；Heating effect of the present invention is good, the non-corrosive effect of road pavement, long service life；Cable burial is heated under road surface, is not required to occupy the inner space in tunnel.
Description
Technical field
It is the present invention relates to the anti-freezing and heat-insulating technical field of tunnel in cold area, in particular to a kind of using solar-photovoltaic technology
Tunnel portal section heat-insulation system.
Background technique
With the high speed development that highway in China is built, network of highways is gradually perfect, and the Quantity and scale of vcehicular tunnel are not
It is disconnected to increase, be built in high latitude, High aititude cold climate conditions under tunnel quantity accordingly increase.Cold climate is to highway
Safe operation has a significant effect, and China's cold district winter temperature reaches subzero, and atmosphere snowfall will make road snow, knot
The coefficient of friction of ice, road surface greatly reduces, and significantly reduces the traffic capacity and safety coefficient, is lost by braking automobile failure, direction
Frequent accidents caused by the reasons such as control occur, and more continuous rear collision car accident also occurs, and traffic thing occurs for traffic jam
Therefore the probability occurred increases.
It is the huge hidden danger for influencing tunnel safety operation that tunnel in cold area Portal Section road snow, which freezes, in vehicles while passing tunnel
When, since the ice and snow of tunnel portal causes the example of traffic accident can be found everywhere, seriously jeopardize the safety of driver and passenger, tunnel
The antiskid problem of road hole road section surface has become research emphasis.To ensure tunnel portal section the coast is clear, ensure that road is normally transported
Seek efficiency, it is necessary to effective deicing or snow melting measure be taken to remove the ice and snow of tunnel portal.Currently, using wide artificial clear
It removes, deicing or snow meltings method, the above-mentioned conventional treatment measure such as mechanical removal, deicer salts can not effectively solve tunnel portal section for a long time
Accumulated snow ice formation issues；Meanwhile it is obvious for the destruction of pavement structure and external environment, cause biggish loss.
Summary of the invention
For the technical problems in the prior art, photovoltaic skill is utilized the purpose of the present invention is to provide a kind of
The tunnel portal section heat-insulation system of art reduces road surface to solve the accumulated snow ice formation issues of tunnel in cold area engineering hole road section surface
Disease management, deicing or snow melting expense and maintenance cost, effective protection environment and raising economic and social profit.
To reach realization above-mentioned purpose, the present invention adopts the following technical scheme:
The present invention provides a kind of tunnel portal section heat-insulation systems using solar-photovoltaic technology, including road-surface heating system
System and power supply system, road-surface heating system are laid in tunnel portal road section surface；Power supply system is connect with road-surface heating system, is used
In providing electric energy for road-surface heating system；Road-surface heating system includes heating cable and feed cable, heats cable laying on road
Inside surface concrete, one end of feed cable and heating cable connection, the other end are connect with power supply system；Power supply system is the sun
It can power supply system.
Further, pavement concrete include the cement concrete layer set gradually from bottom to top, in gather materials pitch coagulation
Soil and fine aggregate bituminous concrete, the setting of heating cable cement concrete layer and in gather materials between asphalt concrete layer, cement
Groove is set on the upper surface of concrete layer, and heating cable is arranged in groove, and the upper flat laying of groove is equipped with steel wire, steel
The top of silk screen gathers materials asphalt concrete layer and fine aggregate asphalt concrete layer in setting gradually.
Further, heat-barrier material is arranged in groove slot bottom, and the top of heat-barrier material is arranged in heating cable.
Further, heating cable uses self-limited type heating tape, and heating cable uses snakelike laying.
Further, self-limited type heating tape includes two parallel metal cores, ptc material, insulating protective layers, shielded layer
And anti-corrosion layer；Ptc material extrusion molding is arranged among two parallel metal cores, and metal core and ptc material form core ribbon；
Insulating protective layer is coated on the outside of core ribbon；Shielded layer is wrapped in the outside of insulating protective layer, and anti-corrosion layer is wrapped in shielded layer
Outside.
Further, power supply system includes solar cell module, direct current junction box, grid-connected photovoltaic control and inversion one
Machine, public electric wire net and battery；The output end of solar cell module connect direct current connection box with one end of direct current junction box
The other end and grid-connected photovoltaic control and connect with the input terminal of integrated machine for reverse conversion；Grid-connected photovoltaic control and the first of integrated machine for reverse conversion
Output end is connect with public electric wire net, and grid-connected photovoltaic control and the second output terminal of integrated machine for reverse conversion by ac power cord and store
The input terminal of battery connects；The output end of battery is connect with feed cable；The third of grid-connected photovoltaic control and integrated machine for reverse conversion
Output end is connect with feed cable；Public electric wire net is connect with feed cable.
Further, solar cell module includes solar energy photovoltaic panel and photovoltaic board mount, and the setting of photovoltaic board mount exists
At tunnel portal, solar energy photovoltaic panel is fixed on photovoltaic board mount, between solar energy photovoltaic panel in series and parallel connect after with
Direct current junction box connection.
Further, photovoltaic board mount uses steel structure support or casting concrete structure.
Further, solar energy photovoltaic panel uses sun-shading plate structure, and solar energy photovoltaic panel uses translucent photovoltaic panel.
Further, battery uses silicon energy storage device.
Compared with the prior art, the beneficial effects of the present invention are as follows:
The present invention provides a kind of tunnel portal section heat-insulation systems using solar-photovoltaic technology, by tunnel portal
Road-surface heating system is set in the concrete road surface of section, tunnel in cold area hole is heated using heating cable, heats cable
The heat of radiation is transferred to body structure surface by structure sheaf, heats ice and snow by way of sensible heat and latent heat, makes its thawing, solves
The accumulated snow ice formation issues of tunnel in cold area engineering hole road section surface；Heating effect of the present invention is good, the non-corrosive effect of road pavement, environmental protection
It is pollution-free, long service life；And cable burial is heated under road surface, is not required to occupy the inner space in tunnel.
Further, heating cable bend is laid on the upper surface of cement concrete layer and is arranged in groove, avoids road
Heating cable stress is excessive when face deforms.
Further, by the way that heat-barrier material is arranged in the bottom of heating cable, it is ensured that heat caused by heating cable
It is spread to top, to improve heat utilization efficiency.
Further, heating cable uses self-limited type heating tape, and self-limited type heating tape uses snakelike laying, increases heated
Face reduces the heat dissipation on area per unit length, it is heated more evenly to make road surface, while improving heat utilization ratio.
Further, the heater element of self-limited type heating tape uses PTC exothermic material, and as temperature increases, resistance is increased,
When reaching a threshold value, high resistance will separate electric current, and exothermic material temperature no longer increases, and keep constant temperature.This system is not
Only good heating effect, and operability is simple；Shielded layer or/and corrosion-resistant is coated on the outside of self-limited type heating tape
Layer, improves the use scope and service life of self-limited type heating tape.
Further, power supply system connects solar cell module and public electric wire net by the way of grid-connected, fills
Respective advantage is waved in distribution, and in batteries to store energy deficiency situation, power supply system can also be operated normally, and reduce making for battery
With quantity, cost is reduced；Using grid-connected photovoltaic control and integrated machine for reverse conversion, avoids and controller and inverter production is respectively set
The problem of raw route confusion, so that system is more intelligent, efficient, safe and reliable.
Further, the generation mode of solar cell module is generated electricity using photovoltaic panel, makes full use of solar energy resources, green
Colour circle is protected.
Further, before solar energy photovoltaic panel is placed in tunnel portal in the form of sunshade, solar energy photovoltaic panel is installed
Not only without the concern for the limitation of hole landform, moreover it is possible to for driver reduce sunlight direct projection, as early as possible adapt to hole in brightness, reduce by
Driver's bring discomfort is given in light and shade effect, to ensure that the traffic safety in Tunnel.
Detailed description of the invention
Fig. 1 is tunnel portal section heat-insulation system integral arrangement structural schematic diagram of the present invention；
Fig. 2 is the photovoltaic parallel in system operation principle schematic diagram in tunnel portal section heat-insulation system of the present invention；
Fig. 3 is the heating construction of cable schematic diagram in tunnel portal section heat-insulation system of the present invention.
Wherein, 1 road-surface heating system, 2 power supply systems, 3 pavement concretes；11 heating cables, 12 feed cables；21 sun
Energy battery component, 22 direct current junction boxes, the control of 23 grid-connected photovoltaics and integrated machine for reverse conversion, 24 public electric wire nets, 25 batteries；31 cement
Concrete layer, gather materials in 32 asphalt concrete layer, 33 fine aggregate asphalt concrete layers；211 solar energy photovoltaic panels, 212 photovoltaic panels
Bracket.
Specific embodiment
The technical solution of the embodiment of the present invention is explained and illustrated below with reference to the attached drawing of the embodiment of the present invention, but under
It states embodiment to be merely a preferred embodiment of the present invention, and not all.Based on the implementation example in the implementation mode, those skilled in the art
Obtained other embodiments without making creative work, belong to protection scope of the present invention.
With reference to shown in attached drawing 1-3, the present invention provides a kind of tunnel portal sections using solar-photovoltaic technology to keep the temperature system
System, including road-surface heating system 1 and power supply system 2, road-surface heating system 1 and power supply system 22, road-surface heating system 1 are laid on
In tunnel portal road section surface, for carrying out heating and thermal insulation to tunnel portal road section surface；Power supply system 2 and road-surface heating system 1 connect
It connects, for providing electric energy for road-surface heating system 1.
Road-surface heating system 1 includes heating cable 11 and feed cable 12, and heating cable 11 is laid on pavement concrete 3
It is interior；Pavement concrete 3 include the cement concrete layer 31 set gradually from bottom to top, in gather materials asphalt concrete layer 32 and thin collection
Expect asphalt concrete layer 33, the setting of heating cable 11 cement concrete layer 31 and in gather materials between asphalt concrete layer 32, water
The setting of 31 upper surface of cement concrete layer is fluted, and heat-barrier material is arranged in the bottom of groove, and heating cable 11 is arranged in groove, makes
It heats heat caused by cable 11 to spread to top, to improve the utilization rate of heat.Heating cable 11 in a groove is pine
Relaxation state, non-stretchable tension, and it is provided with certain bending, when pavement concrete being avoided to deform, heating cable stress is excessive
It causes to damage；Heating cable 11 is fixed in groove using line card and cement nail.Layer of steel wire net, steel wire is arranged in the top of groove
The top of net gathers materials bituminous concrete and fine aggregate bituminous concrete in being successively laid with, steel wire for obstruct heating cable 11 with
In gather materials the direct contact of bituminous concrete.Feed cable 12 along road deck edge cable trough be laid with, heating cable 11 with
One end of feed cable 12 connects, and the other end of feed cable 12 is connect with power supply system 2.
It heats cable 11 and uses self-limited type heating tape, self-limited type heating tape uses snakelike laying, increases heating surface, reduces
It is heated more evenly to make road surface, while improving heat utilization ratio for heat dissipation on area per unit length.
Power supply system 2 includes solar cell module 21, direct current junction box 22, grid-connected photovoltaic control and integrated machine for reverse conversion
23, public electric wire net 24 and battery 25；The output end of solar cell module 21 passes through DC power supply line and direct current junction box
22 one end connection, the other end of direct current connection box 22 is controlled with grid-connected photovoltaic to be connect with the input terminal of integrated machine for reverse conversion 23,
Grid-connected photovoltaic control is connect by ac power cord with public electric wire net 24 with the first output end of integrated machine for reverse conversion 23, grid-connected light
Volt control is connect by ac power cord with the input terminal of battery 25 with the second output terminal of integrated machine for reverse conversion 23, battery
25 output end is connect with the feed cable 12 in road-surface heating system 1；The third of grid-connected photovoltaic control and integrated machine for reverse conversion 23
Output end is connect by ac power cord with the feed cable 12 in road-surface heating system 1；Public electric wire net 24 passes through alternating current
Power supply line is connect with the feed cable 12 in road-surface heating system 1.
Solar cell module 21 is energy conversion setting, converts light energy into direct current energy, and store up by battery
Deposit electric energy.The effect of controller is to prevent accumulator super-charge, to extend the service life of battery；Inverter is by direct current
The equipment that the AC energy used for heating cable can be converted into.
Solar cell module 21 is connect in grid-connected mode with public electric wire net in power supply system 2, in illumination sufficiency
Under, solar energy photovoltaic panel can convert electric energy for a large amount of luminous energy, will be straight with integrated machine for reverse conversion 23 by grid-connected photovoltaic control
Galvanic electricity, which is changed into, meets public electric wire net and heating cable requirement alternating current, and a part of alternating current provides power supply for heating cable, separately
A part of alternating current enters public electric wire net；Solar cell module is not only supplied to the exchange that cable is heated in each circuit at this time
Electricity, moreover it is possible to feed back dump power to public electric wire net.Under the conditions of illumination is insufficient, solar cell module generate electric energy compared with
It is few, it is unable to satisfy the practical power demand of heating cable, at this time from public electric wire net directly to heating cable power supply；To sum up, with simultaneously
Solar cell module is connected by the mode of net with public electric wire net, can greatly reduce the quantity of battery, reduce system cost.
Solar cell module 21 includes solar energy photovoltaic panel 211 and photovoltaic board mount 212, and photovoltaic board mount 212 is arranged
At tunnel portal, photovoltaic board mount 212 uses steel structure support or casting concrete structure, and solar energy photovoltaic panel 211 is fixed
It is arranged on photovoltaic board mount 212, is connect after being connected in series and parallel between solar energy photovoltaic panel 211 with direct current junction box 22.
Installation process
When road-surface heating system construction, after the completion of tunnel in cold area cement concrete layer is laid with, surface is portrayed pre- on it
If the groove of depth, heat-barrier material is laid in groove slot bottom；By the way that heat-barrier material is arranged in bottom portion of groove, it is ensured that heating cable
Heat caused by 11 is spread to top, to improve heat utilization efficiency；Then heating cable 11 is fixed in groove,
It is fixed in a groove by line card and cement nail to heat cable 11, heating cable 11 is preset with certain curvature in a groove,
It is non-stretchable too tight, in case cable stress is excessive when surface deformation；After heating cable is completed, one layer of cement concrete layer upper berth
Steel wire, identical as normal composite pavement construction later, successively gather materials in construction asphalt concrete layer and fine aggregate pitch coagulation
Soil layer；The leading-out terminal for heating cable 11 enters cable trough across road surface gutter at road deck edge and is connected to feed cable 12.
When power supply system is constructed, the construction of photovoltaic board mount 212 is carried out first, and photovoltaic board mount 212 uses and pours coagulation
Soil or steel construction square matrix bracket, photovoltaic board mount 212 are arranged in tunnel portal；After the completion of photovoltaic board mount 212 is constructed, by the sun
Energy photovoltaic panel 211 is mounted on the upper position of photovoltaic board mount 212, it is ensured that solar energy photovoltaic panel 211 can fully absorb the sun
Energy；Then to being connected in series and parallel between solar energy photovoltaic panel；Solar energy photovoltaic panel 211 is needed during the installation process in square matrix
Each piece of solar energy photovoltaic panel azimuth and inclination angle control, there are also component parameter verifications；Avoid each solar energy photovoltaic panel
Between interference, guarantee solar energy photovoltaic panel installation balance, meet operation needs；Secondly, near solar energy photovoltaic panel square matrix
Setting measurement to maintain equipment guarantees to repair in time when solar energy photovoltaic panel breaks down；Direct current junction box 22 is arranged
Smooth place near tunnel portal；One piece of smooth vacant lot, placement grid-connected photovoltaic control are applied near the hole on roadbed
With integrated machine for reverse conversion, photovoltaic system and public electric wire net are connected, and in the control of placement grid-connected photovoltaic and integrated machine for reverse conversion
Side is equipped with an AC power distribution cabinet/AC distribution panel, and when the illumination abundance of the sun, it is extra to be generated photovoltaic system using AC power distribution cabinet/AC distribution panel
Electric energy feed back to and public electric wire net and be stored in battery, when illumination deficiency, and when battery point power is inadequate, utilize distribution
Cabinet uses the electric energy supply heating cable of public electric wire net；The battery of storage electric energy should be placed in the locker room being arranged in tunnel
It is interior, to guarantee emergency requirement.
The construction implementation steps of photovoltaic system are the construction for being first 6 square matrix bracket of photovoltaic panel, can use and pour coagulation
The mode of soil applies, and the mode of steelframe can also be used.After the completion of photovoltaic panel sunshading awning bracket 7 applies, photovoltaic panel 6 is mounted on branch
The upper position of frame can fully absorb solar energy, and to being connected in series and parallel between photovoltaic panel, need to infuse during the installation process
It anticipates, the azimuth of each piece of photovoltaic panel in square matrix and inclination angle control, there are also component parameter verifications, the interference of inter-module is avoided,
Guarantee solar energy photovoltaic panel installation balance, meets system operation needs.In addition, it is necessary to match measurement maintenance near photovoltaic panel square matrix
Equipment guarantees to repair in time when breaking down.
Embodiment
A kind of tunnel portal section heat-insulation system using solar-photovoltaic technology of the present invention, including road-surface heating system
System and power supply system；Road-surface heating system is a kind of radial pattern heating system, using heating wire as heat source, to be powered to heating cable
Mode convert electrical energy into thermal energy, then pass to heated object, and pass through the protection of outer layer heat-barrier material, needed with reaching system
The effect of the heating, heat preservation wanted.
Power supply system 2 includes solar cell module 21, direct current junction box 22, grid-connected photovoltaic control and integrated machine for reverse conversion
23, public electric wire net 24 and battery 25；Wherein, solar cell module 21 is energy conversion equipment, is converted light energy into straight
Galvanic electricity energy, and pass through battery stores electricity energy；Grid-connected photovoltaic control and the effect of 23 one side of integrated machine for reverse conversion are to prevent electric power storage
Pond overcharges, and realizes the service life for extending battery；The effect of another aspect is to convert direct current energy to make for heating cable
AC energy.
Solar cell module 21 in power supply system 2 is connected in grid-connected mode with public electric wire net；In illumination abundance,
Solar energy photovoltaic panel can be converted into a large amount of luminous energy electric energy, and by grid-connected photovoltaic control and integrated machine for reverse conversion 23 by direct current
Electricity is changed into the alternating current for meeting the requirement of public electric wire net 24, and subsequently into public electric wire net, photovoltaic system is not only supplied to respectively at this time
The alternating current of cable 11 is heated in circuit, moreover it is possible to feed back dump power to public electric wire net 24；In illumination deficiency, solar battery
The electric energy that component 21 generates is less, is unable to satisfy the practical power demand of heating cable 11, is supplied at this time by public electric wire net 24
Electricity.Therefore, photovoltaic system is connected in grid-connected mode with public electric wire net, the quantity of battery can be greatly reduced, reduce cost.
In road-surface heating system, heating cable 11 uses self-limited type heating tape, and the heating element of self-limited type heating tape has
Very high positive temperature coefficient PTC, also referred to as ptc material, self-limited type heating tape can convert electrical energy into thermal energy.By PTC material
Expect that uniform extrusion molding forms core ribbon between two parallel metal cores, one layer of insulating materials is wrapped up outside core ribbon as protection
Layer can also increase shielded layer and anti-corrosion layer to have a particular demands.When energized, power supply is passed through by single line core
Ptc material is formed into a loop to another core, and heater is an entirety, so this ribbon heater is not easy because of various knots
Structure reason causes to power off, and loses heating effect.In view of the influence of extreme temperature environment and regional condition, solar energy photovoltaic panel can
It to use translucent model, is installed in the form of sunshade and the place that is placed on before tunnel portal, reduces driver into hole
When light and shade effect brought by discomfort, guarantee the traffic safety in tunnel；Battery uses silicon energy storage device, is using
Without any harm in journey, no acid mist, nothing in the dead of night and not corrode pole plate, more environmentally friendly.The present invention is controlled using grid-connected photovoltaic
With integrated machine for reverse conversion, have many advantages, such as it is intelligent, efficient, safe and reliable, can be chaotic to avoid traditional technology bring route, take
Disappear the auxiliary of additional header box.
The present invention provides a kind of tunnel portal section heat-insulation systems using solar-photovoltaic technology, are given using heating cable
Road surface heating, not only heating effect is good, environment friendly and pollution-free, easy to operate, will not also road pavement cause to wear, keep smooth
Property；It is not only environmentally protective by using the usage mode that solar energy photovoltaic panel and alternating current combine, moreover it is possible to play respective excellent
Gesture saves engineering cost, in the insufficient situation of illumination, does not have to worry that heating cable heat supply is insufficient.Therefore, the present invention is effective
The tunnel in cold area traffic capacity is improved, while improving the travel safety and comfort of driver and conductor, to improve tunnel comprehensively
The service quality and efficiency of operation in road.
Claims (10)
1. a kind of tunnel portal section heat-insulation system using solar-photovoltaic technology, which is characterized in that including road-surface heating system
(1) it is laid in tunnel portal road section surface with power supply system (2), road-surface heating system (1)；Power supply system (2) and road-surface heating
System (1) connection, for providing electric energy for road-surface heating system (1)；Road-surface heating system (1) includes heating cable (11) and electricity
Source cable (12), heating cable (11) are laid on pavement concrete (3) inside, one end of feed cable (12) and heating cable
(11) it connects, the other end is connect with power supply system (2)；Power supply system (2) is solar electric power supply system.
2. a kind of tunnel portal section heat-insulation system using solar-photovoltaic technology according to claim 1, feature exist
In, pavement concrete (3) include the cement concrete layer (31) set gradually from bottom to top, in gather materials bituminous concrete (32) and
Fine aggregate bituminous concrete (33), heating cable (11) setting cement concrete layer (31) and in gather materials asphalt concrete layer
(32) between, groove is set on the upper surface of cement concrete layer (31), heating cable (11) is arranged in groove, groove it is upper
Portion's tiling is provided with steel wire, the top of steel wire set gradually in gather materials asphalt concrete layer and fine aggregate bituminous concrete
Layer.
3. a kind of tunnel portal section heat-insulation system using solar-photovoltaic technology according to claim 2, feature exist
In heat-barrier material is arranged in groove slot bottom, and the top of heat-barrier material is arranged in heating cable (11).
4. a kind of tunnel portal section heat-insulation system using solar-photovoltaic technology according to claim 1, feature exist
In heating cable (11) uses self-limited type heating tape, and heating cable (11) uses snakelike laying.
5. a kind of tunnel portal section heat-insulation system using solar-photovoltaic technology according to claim 4, feature exist
In self-limited type heating tape includes two parallel metal core, ptc material, insulating protective layer, shielded layer and anti-corrosion layers；PTC
Material extrusion molding is arranged among two parallel metal cores, and metal core and ptc material form core ribbon；Insulating protective layer cladding
In the outside of core ribbon；Shielded layer is wrapped in the outside of insulating protective layer, and anti-corrosion layer is wrapped in the outside of shielded layer.
6. a kind of tunnel portal section heat-insulation system using solar-photovoltaic technology according to claim 1, feature exist
In power supply system (2) includes solar cell module (21), direct current junction box (22), grid-connected photovoltaic control and integrated machine for reverse conversion
(23), public electric wire net (24) and battery (25)；The one of the output end of solar cell module (21) and direct current junction box (22)
The other end of end connection direct current connection box (22) is controlled with grid-connected photovoltaic and is connect with the input terminal of integrated machine for reverse conversion (23)；It is grid-connected
Photovoltaic control is connect with the first output end of integrated machine for reverse conversion (23) with public electric wire net (24), grid-connected photovoltaic control and inversion one
The second output terminal of machine (23) is connect by ac power cord with the input terminal of battery (25)；The output end of battery (25)
It is connect with feed cable (12)；Grid-connected photovoltaic control connects with the third output end of integrated machine for reverse conversion (23) and feed cable (12)
It connects；Public electric wire net (24) is connect with feed cable (12).
7. a kind of tunnel portal section heat-insulation system using solar-photovoltaic technology according to claim 6, feature exist
In solar cell module (21) includes solar energy photovoltaic panel (211) and photovoltaic board mount (212), and photovoltaic board mount (212) is set
It sets at tunnel portal, solar energy photovoltaic panel (211) is fixed on photovoltaic board mount (212), solar energy photovoltaic panel (211)
Between in series and parallel connect after connect with direct current junction box (22).
8. a kind of tunnel portal section heat-insulation system using solar-photovoltaic technology according to claim 7, feature exist
In photovoltaic board mount (212) uses steel structure support or casting concrete structure.
9. a kind of tunnel portal section heat-insulation system using solar-photovoltaic technology according to claim 7, feature exist
In solar energy photovoltaic panel (211) uses sun-shading plate structure, and solar energy photovoltaic panel (211) uses translucent photovoltaic panel.
10. a kind of tunnel portal section heat-insulation system using solar-photovoltaic technology according to claim 1, feature exist
In battery (25) uses silicon energy storage device.
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Cited By (1)
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| CN111676768A (en) * | 2020-06-18 | 2020-09-18 | 四川公路桥梁建设集团有限公司 | Cold region tunnel pavement heat insulation system and method based on pavement photovoltaic |
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