CN114525709A - Device for melting snow by solar heat collection and storage and geothermal energy on road surface - Google Patents

Device for melting snow by solar heat collection and storage and geothermal energy on road surface Download PDF

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Publication number
CN114525709A
CN114525709A CN202210172705.6A CN202210172705A CN114525709A CN 114525709 A CN114525709 A CN 114525709A CN 202210172705 A CN202210172705 A CN 202210172705A CN 114525709 A CN114525709 A CN 114525709A
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heat
section
road surface
heat pipe
soil
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CN202210172705.6A
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CN114525709B (en
Inventor
陈晓
王郁芊
曾丽萍
汤井悦
刘向龙
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Hunan Institute of Engineering
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Hunan Institute of Engineering
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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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
    • F24S10/00—Solar heat collectors using working fluids
    • F24S10/90—Solar heat collectors using working fluids using internal thermosiphonic circulation
    • F24S10/95—Solar heat collectors using working fluids using internal thermosiphonic circulation having evaporator sections and condenser sections, e.g. heat pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24T—GEOTHERMAL COLLECTORS; GEOTHERMAL SYSTEMS
    • F24T50/00—Geothermal systems 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • 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
    • Y02E10/40—Solar thermal energy, e.g. solar towers
    • Y02E10/44—Heat exchange systems

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  • Engineering & Computer Science (AREA)
  • Sustainable Development (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Civil Engineering (AREA)
  • Architecture (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Road Paving Structures (AREA)

Abstract

The invention discloses a device for road surface solar heat collection and energy storage and geothermal energy snow melting, which comprises heat pipes arranged in a loop, wherein heat transfer working media are injected into the heat pipes, the heat pipes are sequentially divided into a road surface section, an insulating section and a soil section from top to bottom, the heat pipes positioned on the road surface section are arranged below the road surface at a certain gradient, the heat pipes positioned on the soil section are vertically arranged between the soil section and the ground, backfill materials are filled between the soil section and the heat pipes positioned on the soil section, a switch control part is arranged on the heat pipes, and the switch control part is used for controlling the circulating flow of the heat transfer working media in the heat pipes.

Description

Device for melting snow by solar heat collection and storage and geothermal energy on road surface
Technical Field
The invention relates to the technical field of pavement solar energy, in particular to a device for melting snow by using pavement solar heat collection and storage and geothermal energy.
Background
The road surface temperature is too high due to solar irradiation in summer, the temperature of the asphalt road surface layer at high temperature can reach 60-70 ℃, and the temperature of partial areas can reach more than 70 ℃. Such high temperature can lead to the high temperature on road surface to warp, and during the sudden drop of temperature in winter, the too big difference in temperature will produce temperature stress, easily leads to the road surface to produce the temperature and contracts the crack. The road traffic safety can be seriously influenced by the frozen snow on the road surface in winter, and traffic accidents are easily caused.
Solar energy is collected on the road surface, heat energy is stored in soil, and the soil heat energy is extracted in winter and used for road snow melting and deicing, so that the temperature of the road surface in summer can be effectively reduced, the service life of the road surface is prolonged, and the road snow melting and deicing can be realized. The prior art cools and heats the road surface by sensible heat generated by the change of the temperature of the fluid, has small heat flux density, needs to arrange a heat pump unit and lay dense pipelines, and has low efficiency of cooling and heating the road surface and large energy consumption.
The heat pipe device transfers heat by depending on the latent heat of phase change of fluid, and the heat transfer coefficient and the heat exchange quantity are much larger than those of a sensible heat transfer mode without phase change. The existing geothermal energy road surface snow melting and deicing technology using heat pipes adopts an integral heat pipe heat exchanger which can only extract soil heat energy in winter for heating the road surface and automatically stops running in summer, and heat collection and energy storage in summer cannot be realized. The long-term extraction of the heat energy of the soil can cause the temperature of the soil to be reduced year by year in winter, and the heat pipe snow melting and deicing effects in the following years can be influenced.
Disclosure of Invention
The invention aims to provide a device for melting snow by solar heat collection and accumulation and geothermal energy on a road surface, which aims to solve the problems in the prior art.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a device for pavement solar heat collection and energy storage and geothermal energy snow melting, which comprises heat pipes arranged in a loop, wherein heat transfer working media are injected into the heat pipes, the heat pipes are sequentially divided into a pavement section, an insulating section and a soil section from top to bottom, the heat pipes positioned on the pavement section are arranged below the pavement at a certain gradient, the heat pipes positioned on the soil section are vertically arranged between the heat pipes and the ground, backfill materials are filled between the heat pipes positioned on the soil section and the soil, a switch control part is arranged on the heat pipes, the switch control part is arranged on the insulating section of the heat pipes, and the switch control part is used for controlling the circular flow of the heat transfer working media in the heat pipes.
Preferably, the switch control portion includes a first electromagnetic valve disposed on the heat pipe, the first electromagnetic valve is electrically connected to a controller, a liquid pump and a second electromagnetic valve are communicated to the heat insulation section of the heat pipe along the flow direction of the heat transfer medium, the liquid pump and the second electromagnetic valve are disposed in series, the first electromagnetic valve is disposed in parallel with the liquid pump and the second electromagnetic valve, the second electromagnetic valve and the liquid pump are both electrically connected to the controller, and the first electromagnetic valve, the second electromagnetic valve and the liquid pump are all disposed on the heat insulation section of the heat pipe.
Preferably, the liquid pump is a magnetic pump without leakage.
Preferably, the loop of the heat pipe is a stainless steel pipe with an outer surface coated with an anti-corrosion material.
Preferably, the outer wall of the heat pipe located at the heat insulation section is coated with a heat insulation material.
Preferably, the heat pipe located in the soil section is provided in a U-shaped configuration.
Preferably, the heat pipe located at the pavement section is arranged 8-20 cm below the pavement; the length of the heat pipe arranged below the ground at the soil section is 8-12 m.
Preferably, said heat pipes located in said road section are arranged below the road surface with a gradient of 1% to 3%.
The invention discloses the following technical effects:
1. in summer, when the temperature difference between the road surface and the soil reaches a high-limit set value, the road surface section of the heat pipe becomes an evaporation section, the soil section becomes a condensation section, liquid in the evaporation section absorbs heat and evaporates to form steam, circulation of the liquid in the condensation section and the steam in the evaporation section is realized under the circulation action of the switch control part, the steam enters the condensation section and is condensed to release heat, the heat is introduced into the soil through a backfill material, the liquid in the condensation section enters the evaporation section under the driving of a liquid pump to absorb heat and evaporate, the circulation is carried out, the heat of the high-temperature road surface can be transferred into the soil, and when the temperature difference between the road surface and the soil reaches a low-limit set value, the liquid pump and the second electromagnetic valve are closed through the switch control part; in winter, the road surface section becomes a condensation section, the soil section becomes an evaporation section, liquid in the evaporation section absorbs heat stored in soil in summer and evaporates, the liquid flows upwards under the action of the density difference of fluid between the descending pipe and the ascending pipe, enters the road surface section for condensation and heat release, so that the temperature of the road surface is kept above zero, and the purposes of snow melting and ice melting are achieved.
2. The invention breaks through the limitation that the prior art can only extract geothermal energy by the heat pipe in winter to melt snow and remove ice, collects road surface heat in summer by the heat pipe to store and supplement heat for soil, recovers the soil temperature, ensures the long-term stable snow and ice melting effect of the heat pipe, can also effectively reduce the road surface temperature in summer and prolong the service life of the road surface.
3. The loop heat pipe adopted by the invention separates the evaporation process from the condensation process, and the vapor and the liquid have separate pipelines.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a device for melting snow by solar heat collection and accumulation and geothermal energy on a road surface according to the present invention;
FIG. 2 is a top view of a device for melting snow by solar heat collection and accumulation and geothermal energy on a road surface according to the present invention;
FIG. 3 is a schematic diagram of the operation of the device for melting snow by solar heat collection and accumulation and geothermal energy on the road surface in summer;
FIG. 4 is a schematic view of a device for snow melting by solar heat collection and accumulation and geothermal energy on a road surface according to the present invention;
fig. 5 is a schematic view of a plurality of devices for melting snow by solar heat collection and accumulation and geothermal energy on the road surface arranged side by side.
Wherein, 1, a heat pipe; 2. a pavement section; 3. a thermally insulating section; 4. a soil section; 5. a first solenoid valve; 6. a second solenoid valve; 7. a magnetic pump; 8. backfilling materials; 9. a pavement; 10. and (6) inspecting the well.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example 1:
the invention provides a device for pavement solar heat collection and energy storage and geothermal energy snow melting, which comprises a heat pipe 1 arranged in a loop, wherein heat transfer working media are injected into the heat pipe 1, the heat pipe 1 is sequentially divided into a pavement section 2, an adiabatic section 3 and a soil section 4 from top to bottom, the heat pipe 1 on the pavement section 2 is arranged below the pavement at a certain gradient, the heat pipe 1 on the soil section 4 is vertically arranged between the heat pipe 1 and the ground, a backfill material 8 is filled between the heat pipe 1 on the soil section 4 and the soil, a switch control part is arranged on the heat pipe 1, the switch control part is arranged on the adiabatic section 3 of the heat pipe 1 and is used for controlling the circulating flow of the heat transfer working media in the heat pipe 1.
The circulating working medium adopts R134a, and the backfill material 8 is a mixed slurry of fine sand, bentonite and cement. In summer, when the temperature difference between the road surface and the soil reaches a high-limit set value, the road surface section 2 of the heat pipe 1 becomes an evaporation section, the soil section 4 becomes a condensation section, liquid in the evaporation section absorbs heat and evaporates to form steam, circulation of the liquid in the condensation section and the steam in the evaporation section is realized under the circulation action of the switch control part, the steam enters the condensation section and then condenses to release heat, heat is introduced into the soil through a backfill material 8, the liquid in the condensation section enters the evaporation section under the driving of a liquid pump to absorb heat and evaporate, and the circulation is carried out, so that the heat of the high-temperature road surface can be transferred into the soil; in winter, the temperature difference between the road surface and the soil reaches a low limit set value, the road surface section 2 becomes a condensation section, the soil section 4 becomes an evaporation section, liquid in the evaporation section absorbs heat stored in the soil in summer and evaporates, the liquid flows upwards under the action of the density difference of the fluid between the descending pipe and the ascending pipe and enters the road surface section 2 to be condensed and released, so that the temperature of the road surface is kept above zero, and the purpose of melting snow and ice is achieved.
Further, the on-off control portion is including setting up first solenoid valve 5 on heat pipe 1, 5 electric connection of first solenoid valve has the controller, 1 adiabatic section 3 of heat pipe is gone up along heat transfer working medium flow direction intercommunication has liquid pump and second solenoid valve 6, liquid pump and 6 series connection settings of second solenoid valve, parallelly connected setting between first solenoid valve 5 and liquid pump and the second solenoid valve 6, second solenoid valve 6 and liquid pump all with controller electric connection, first solenoid valve 5, second solenoid valve 6 and liquid pump all set up adiabatic section 3 at heat pipe 1.
When the heat pipe is used in summer, the pavement section 2 of the heat pipe 1 absorbs heat and evaporates, the second electromagnetic valve 6 and the liquid pump are opened through the controller, and vapor in the pavement section 2 and liquid in the soil section 4 circulate under the action of the liquid pump. In winter, the liquid pump and the second electromagnetic valve 6 are closed, the first electromagnetic valve 5 is opened, the liquid in the soil section 4 absorbs heat stored in soil in summer and evaporates, the liquid flows upwards under the action of the density difference of the fluid between the descending pipe and the ascending pipe, and the liquid in the pavement section 2 flows downwards into the soil section 4, so that circulation is realized.
Further, the liquid pump is a magnetic pump 7 without leakage.
Further, the loop of the heat pipe 1 is a stainless steel pipe whose outer surface is coated with an anticorrosive material.
Furthermore, the outer wall of the heat pipe 1 positioned on the heat insulation section 3 is coated with a heat insulation material. The heat-insulating material is selected from heat-insulating foam.
Further, the heat pipe 1 located at the soil section 4 is configured into a U-shaped structure.
Further, the heat pipe 1 positioned on the pavement section 2 is arranged 8-20 cm below the pavement; the heat pipe 1 located in the soil section 4 is arranged 8-12 m in length below the ground.
Furthermore, the heat pipes 1 located in the road section 2 are arranged at a gradient of 1% to 3% below the road surface.
In the concrete implementation mode, a hole is drilled beside a roadbed, the depth of the drilled hole is 8-12 m, a soil section 4 of a heat pipe 1 is vertically inserted into the drilled hole, mixed slurry of fine sand, bentonite and cement is poured between the heat pipe 1 and the soil, a pavement section 2 of the heat pipe 1 is arranged 8-20 cm below a pavement at a gradient of 1% -3%, the outer wall of a heat insulation section 3 of the heat pipe 1 is coated with heat insulation foam for heat insulation, when the temperature difference between the pavement and the soil reaches a set value in summer, a second electromagnetic valve 6 and a magnetic pump 7 are opened through a controller, liquid in the pavement section 2 of the heat pipe 1 absorbs heat and evaporates to form steam, under the action of the magnetic pump 7, the liquid in the soil section 4 enters the pavement section 2 for evaporation, the steam enters the soil section 4 for cold condensation, the heat of a high-temperature pavement is stored in the soil, and when the temperature difference between the pavement and the soil reaches a low-limit set value, the magnetic pump 7 and the second electromagnetic valve 6 are closed by the switch control part; in winter, the first electromagnetic valve 5 is opened through the controller, the second electromagnetic valve 6 and the magnetic pump 7 are closed, liquid in the soil section 4 absorbs heat of soil and evaporates, vapor flows upwards under the action of fluid density difference between the descending pipe and the ascending pipe, and condenses and releases heat in the pavement section 2, so that the pavement temperature is kept above zero, and the purposes of snow melting and ice melting are achieved.
Example 2:
in practice, the pipeline spacing of one heat pipe 1 is 250-300 mm, a plurality of heat pipes 1 need to be arranged on the road surface 9 side by side, the plurality of heat pipes 1 are controlled by the same controller, and the heat insulation section 3 and the switch control part are positioned in the inspection well 10. In order to better control the liquid supply amount of the liquid pump, the liquid pumps of the heat pipes 1 are controlled by the same frequency converter to control the rotating speed and the flow rate, the power supply frequency is 10-20 Hz when the liquid pumps are started, and the liquid pumps circulate at a smaller flow rate to avoid the liquid pumps from sucking vapor; the power supply frequency after stable operation is 20-50 Hz.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims (8)

1. A device for road surface solar heat collection and storage and geothermal energy snow melting is characterized by comprising a heat pipe (1) which is arranged in a loop, the heat pipe (1) is filled with heat transfer working medium, the heat pipe (1) is divided into a road surface section (2), a heat insulation section (3) and a soil section (4) from top to bottom in sequence, the heat pipe (1) positioned on the road surface section (2) is arranged below the road surface at a certain gradient, the heat pipe (1) positioned on the soil section (4) is vertically arranged between the ground and the heat pipe (1), and a backfill material (8) is filled between the heat pipe (1) of the soil section (4) and the soil, the heat pipe (1) is provided with a switch control part which is arranged on the heat insulation section (3) of the heat pipe (1), the switch control part is used for controlling the circulating flow of the heat transfer working medium in the heat pipe (1).
2. The device for melting snow by solar heat collection and accumulation and geothermal energy on the road surface according to claim 1, is characterized in that: the switch control portion is including setting up first solenoid valve (5) on heat pipe (1), first solenoid valve (5) electric connection has the controller, heat pipe (1) on adiabatic section (3) along heat transfer working medium flow direction intercommunication have liquid pump and second solenoid valve (6), liquid pump and second solenoid valve (6) series arrangement, first solenoid valve (5) with parallelly connected the setting between liquid pump and second solenoid valve (6), second solenoid valve (6) with the liquid pump all with controller electric connection, first solenoid valve (5) second solenoid valve (6) with the liquid pump all sets up heat pipe (1) adiabatic section (3).
3. The device for melting snow by solar heat collection and accumulation and geothermal energy on the road surface according to claim 2, is characterized in that: the liquid pump is a magnetic pump (7) without leakage.
4. The device for melting snow by solar heat collection and accumulation and geothermal energy on the road surface according to claim 1, is characterized in that: the loop of the heat pipe (1) is a stainless steel pipe with the outer surface coated with an anti-corrosion material.
5. The device for melting snow by solar heat collection and accumulation and geothermal energy on the road surface according to claim 1, is characterized in that: the outer wall of the heat pipe (1) positioned on the heat insulation section (3) is coated with a heat insulation material.
6. The device for melting snow by solar heat collection and accumulation and geothermal energy on the road surface according to claim 1, is characterized in that: the heat pipe (1) positioned on the soil section (4) is arranged into a U-shaped structure.
7. The device for melting snow by solar heat collection and accumulation and geothermal energy on the road surface according to claim 1, is characterized in that: the heat pipe (1) located at the pavement section (2) is arranged 8-20 cm below the pavement; the length of the heat pipe (1) arranged below the ground in the soil section (4) is 8-12 m.
8. The device for melting snow by solar heat collection and accumulation and geothermal energy on the road surface according to claim 1, is characterized in that: the heat pipes (1) located in the road surface section (2) are arranged below the road surface with a gradient of 1-3%.
CN202210172705.6A 2022-02-24 2022-02-24 Device for road surface solar heat collection and energy storage and geothermal energy snow melting Active CN114525709B (en)

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JPH05272105A (en) * 1992-03-25 1993-10-19 Kowa:Kk Road snow melting device provided with solar device on slope face
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JPH08284106A (en) * 1995-04-19 1996-10-29 Fujikura Ltd Heat pipe type snow-melting apparatus
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CN103669163A (en) * 2013-12-27 2014-03-26 哈尔滨理大晟源科技开发有限公司 Energy-storing circular thermal fluid type system for snow melting and deicing
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CN110055855A (en) * 2018-01-19 2019-07-26 山东省交通规划设计院 A kind of gravity type heat pipe torsion protection braced frame, system and construction method against pressure
CN110396895A (en) * 2019-08-13 2019-11-01 吉林大学 A kind of Power Cycle and its control method of road surface thermal-arrest and snow melt heat release
CN211872472U (en) * 2020-01-22 2020-11-06 上海理工大学 Gravity type and horizontal heat pipe combined road snow and ice melting device
CN212103543U (en) * 2020-04-10 2020-12-08 西安交通大学 Snow-proof and snow-melting device for road and bridge slope-shaped road surface

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0322489A1 (en) * 1987-12-31 1989-07-05 Kohei Katsuragi Snow melting method utilizing heat retaining function of underground aquifer without sprinkling water
EP0322489B1 (en) * 1987-12-31 1992-02-26 Kohei Katsuragi Snow melting method utilizing heat retaining function of underground aquifer without sprinkling water
JPH05272105A (en) * 1992-03-25 1993-10-19 Kowa:Kk Road snow melting device provided with solar device on slope face
JPH07190503A (en) * 1993-12-27 1995-07-28 Fumio Hiraga Method and apparatus for collecting terrestrial heat
JPH08284106A (en) * 1995-04-19 1996-10-29 Fujikura Ltd Heat pipe type snow-melting apparatus
CN2541797Y (en) * 2002-04-11 2003-03-26 郑茂余 Energy saving heating and cooling appts.
JP2008025984A (en) * 2006-04-28 2008-02-07 Misawa Kankyo Gijutsu Kk Facility for storing and supplying solar/geothermal heat and method for supplying the same
CN1958958A (en) * 2006-11-10 2007-05-09 哈尔滨工业大学 Installation of cooling and melting ice and snow for road surface and bridge road by using underground natural energy resource
CN101736715A (en) * 2009-12-09 2010-06-16 吉林大学 Energy stepped system of road heat collection and heat release by snow and ice melting
CN101806029A (en) * 2010-04-15 2010-08-18 陕西科技大学 Snow-removing deicer used for ramp of road or bridge
CN201857566U (en) * 2010-06-13 2011-06-08 尹学军 Floor temperature-adjusting snow-melting device utilizing natural geothermal and application thereof
CN102277819A (en) * 2010-06-13 2011-12-14 尹学军 Ground temperature-regulating and snow-melting device by using natural terrestrial heat and application thereof
WO2014147491A1 (en) * 2013-03-20 2014-09-25 Brenmiller Energy Ltd. Integrated thermal storage, heat exchange, and steam generation
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